CN113179108B - Signal transmission method and device, electronic equipment and readable storage medium - Google Patents
Signal transmission method and device, electronic equipment and readable storage medium Download PDFInfo
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- CN113179108B CN113179108B CN202110383623.1A CN202110383623A CN113179108B CN 113179108 B CN113179108 B CN 113179108B CN 202110383623 A CN202110383623 A CN 202110383623A CN 113179108 B CN113179108 B CN 113179108B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
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- H04B3/46—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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Abstract
The application relates to a signal transmission method and device, electronic equipment and a computer readable storage medium, which are applied to first electronic equipment, wherein the first electronic equipment comprises a magnetic attraction part, a first contact and a second contact; under the effect of magnetism portion of inhaling, first electronic equipment passes through first contact and second contact and is connected with second electronic equipment, and the method includes: and when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power carrier signals. And transmitting the power carrier signal to the second electronic equipment through the first contact and the second contact. The power carrier signal is used for transmitting the information interaction data to the second electronic equipment. Therefore, the more convenient connection mode is adopted, and the information interaction data are transmitted between the electronic equipment and the external electronic equipment.
Description
Technical Field
The present disclosure relates to the field of charging and communication technologies, and in particular, to a signal transmission method and apparatus, an electronic device, and a readable storage medium.
Background
With the rapid development of electronic technology, more and more functions can be realized by electronic equipment. The development of electronic equipment is severely restricted by the limitation of the size of the electronic equipment. However, many external devices capable of being connected with the electronic device are generated, so that the limitation of the size of the electronic device is broken, and the electronic device can realize more and more functions.
In many cases, not only data transmission between the electronic device and the external device is required, but also the electronic device supplies power to the external device or the external device supplies power to the electronic device. In the traditional method, the electric power and the data can be simultaneously transmitted between the electronic equipment and the external equipment in a wired mode. However, the wire used in the wired mode is complex, and the connection process is not convenient.
Disclosure of Invention
The embodiment of the application provides a signal transmission method and device, electronic equipment and a readable storage medium, and power and data are transmitted between the electronic equipment and external equipment simultaneously in a more convenient connection mode.
A signal transmission method is applied to first electronic equipment, wherein the first electronic equipment comprises a magnetic suction part, a first contact and a second contact; under the magnetic attraction effect of the magnetic attraction part, the first electronic equipment is connected with the second electronic equipment through the first contact and the second contact, and the method comprises the following steps:
when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power line carrier signals;
and sending the power carrier signal to the second electronic equipment through the first contact and the second contact.
An electronic device comprises a processor, a control chip, a magnetic suction part, a first contact and a second contact; the processor is in communication connection with the control chip, and the control chip is connected with the first contact and the second contact through power lines; under the magnetic attraction effect of the magnetic attraction part, the electronic equipment is connected with another electronic equipment through the first contact and the second contact;
the processor is used for generating information interaction data and sending the information interaction data to the control chip;
the control chip is used for converting the information interaction data to obtain a power carrier signal and sending the power carrier signal to another electronic device through the first contact and the second contact.
A signal transmission device is applied to first electronic equipment, and the first electronic equipment comprises a magnetic suction part, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment through first contact and second contact with second electronic equipment connects, the device includes:
the signal conversion module is used for converting the information interaction data into a power carrier signal when the information interaction data are transmitted to the second electronic equipment;
and the signal transmission module is used for transmitting the power carrier signal to the second electronic equipment through the first contact and the second contact.
An electronic device comprises a memory and a control chip, wherein the memory stores a computer program, and the computer program causes the control chip to execute the steps of the signal transmission method when being executed by the control chip.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a control chip, carries out the steps of the signal transmission method as described above.
The signal transmission method and device, the electronic equipment and the computer readable storage medium are applied to first electronic equipment, and the first electronic equipment comprises a magnetic attraction part, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment passes through first contact and second contact and is connected with second electronic equipment, and this method includes: and when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power carrier signals. And transmitting the power carrier signal to the second electronic equipment through the first contact and the second contact.
Because the first electronic equipment is connected with the second electronic equipment through the first contact and the second contact to transmit information interaction data, wired connection is not needed, and connection is convenient. When the information interaction data are transmitted to the second electronic equipment, the first electronic equipment converts the information interaction data into a power carrier signal. The first electronic equipment can send the power carrier signal to the second electronic equipment through the first contact and the second contact. The power line carrier signal is used for transmitting the information interaction data to the second electronic equipment. Therefore, the more convenient connection mode is adopted, and the information interaction data are transmitted between the electronic equipment and the external electronic equipment.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of an exemplary embodiment of a signal transmission method;
FIG. 2 is a flow diagram of a method for signal transmission in one embodiment;
FIG. 3 is a diagram illustrating portions of an electronic device in one embodiment;
FIG. 4 is a diagram illustrating an embodiment of a magnetic attraction type power connection between a first electronic device and a second electronic device;
FIG. 5 is a flow chart of a signal transmission method in another embodiment;
FIG. 6 is a flowchart illustrating a method for determining whether to transmit interactive data to the second electronic device according to the detection result in FIG. 5;
FIG. 7 is a partial circuit diagram of a first electronic device in one embodiment;
FIG. 8 is a flow chart of a method of signal transmission in a particular embodiment;
FIG. 9 is a block diagram showing the construction of a signal transmission device according to an embodiment;
fig. 10 is a block diagram showing the construction of a signal transmission apparatus in still another embodiment;
fig. 11 is a schematic diagram of an internal structure of an electronic device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
Fig. 1 is a diagram illustrating an application scenario of a signal transmission method according to an embodiment. As shown in fig. 1, the application environment includes a first electronic device 120 and a second electronic device 140, the first electronic device 120 and the second electronic device 140 are connected to each other by magnetic attraction (magnetic attraction power supply connection for short), specifically, the first electronic device includes a magnetic attraction portion, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment passes through first contact and second contact and is connected with second electronic equipment. The signal transmission method comprises the following steps: when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power line carrier signals; and transmitting the power carrier signal to the second electronic equipment through the first contact and the second contact. Here, the first electronic device 120 and the second electronic device 140 may be any terminal device and external device such as a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a wearable device (smart watch, etc.), a smart home, and the like. The external equipment comprises any detachable equipment which can be connected with a mobile phone, a tablet personal computer and the like, such as an external camera, an external keyboard, an external game handle and the like. For example, when the first electronic device is a mobile phone or a tablet computer, the second electronic device is one or more of an external camera, an external keyboard, and an external game pad. On the contrary, when the second electronic device is a mobile phone or a tablet computer, the first electronic device is one or more of an external camera, an external keyboard and an external game handle.
In a conventional method, if the first electronic device is a mobile phone and the second electronic device is an external camera (e.g., a thermal imaging camera), a wired connection is generally required to transmit power and data between the first electronic device and the second electronic device at the same time. Here, the wired manner mainly includes connection through a USB interface. USB interfaces are typically complex, including signal lines (DATA + and DATA-), VBUS, GND. Therefore, the USB interface is adopted for connection, and the connection mode is easy to break down due to the fact that the wire is complex.
And as the hole-free design of electronic equipment becomes more and more common, people increasingly pursue to adopt a wireless connection mode for communication. However, the wireless connection method (such as bluetooth wireless connection) has poor stability, and cannot simultaneously transmit power and data.
Therefore, the embodiment of the application provides a signal transmission method, which adopts a more convenient connection mode to simultaneously transmit power and transmit data between the electronic equipment and the external equipment.
Fig. 2 is a flow chart of a signal transmission method in one embodiment. The signal transmission method in the present embodiment is described by taking the first electronic device 120 in fig. 1 as an example. The first electronic equipment comprises a magnetic attraction part, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment passes through first contact and second contact and is connected with second electronic equipment. The signal transmission method comprises the following steps:
Wherein, first electronic equipment is connected through the mode of magnetism with second electronic equipment. The magnetic attraction part and the conductive part are respectively and correspondingly arranged on the first electronic device and the second electronic device, and the conductive part on the first electronic device and the second electronic device can be accurately connected under the magnetic attraction effect of the magnetic attraction part. Here, based on the first electronic device being accurately connectable with the conductive part on the second electronic device, the first electronic device can transmit the power carrier signal to the conductive part of the second electronic device through the conductive part.
When the first electronic device needs to transmit the information interaction data to the second electronic device, the information interaction data is firstly converted into a power carrier signal. The information interaction data comprises data of communication between the first electronic device and the second electronic device. The power carrier signal is an analog or digital signal transmitted by a power carrier method. Power Line Carrier (PLC) communication can be realized by a Power Carrier signal. The power carrier is a communication method specific to a power system, and the power carrier communication is a technique of transmitting an analog or digital signal at a high speed by a carrier method using an existing power line. The power carrier communication has the biggest characteristic that data transmission can be carried out only by a power line without erecting a network again. Wherein the power line is a wire that transmits current.
Specifically, when the first electronic device needs to transmit the information interaction data to the second electronic device, the first electronic device converts the information interaction data to obtain a power carrier signal. The format of the information interaction data includes a message in a CAN (Controller Area Network) format. The CAN bus is a serial communication protocol bus for real-time applications, and CAN-format messages (CAN messages for short) CAN be transmitted using twisted pair cables. Features of the CAN protocol include serial data communication that CAN provide integrity, real-time support, transmission rates up to 1Mb/s, and 11-bit addressing and error detection capabilities. In this embodiment of the application, a protocol layer when the first electronic device needs to transmit the information interaction data to the second electronic device is based on a CAN2.0 protocol.
Therefore, when the first electronic device converts the information interaction data to obtain the power carrier signal, the CAN message CAN be specifically converted into an alternating current signal, and the information interaction data is converted to obtain the power carrier signal.
Fig. 3 is a partial block diagram of a first electronic device in an embodiment. As shown in fig. 3, the first electronic device 120 includes a magnetic attraction portion 121 and a conductive portion 123. The conductive portion 123 includes a first contact 123a and a second contact 123b. Under the magnetic attraction effect of the magnetic attraction part 121, the first electronic device 120 is connected to the second electronic device through the first contact 123a and the second contact 123b.
Specifically, the power carrier signal may be transmitted to the second electronic device through the first contact and the second contact. Wherein the power carrier signal can be separately transmitted to the second electronic device through the first contact and the second contact. The power carrier signal and the power signal may also be sent to the second electronic device through the first contact and the second contact at the same time, where the power signal is used to supply power to the second electronic device, and this is not limited in this application. In the conventional method, when the electronic device is connected to the external device in a magnetic attraction manner, at least three or more contacts are required for connection. One contact is VBUS, one contact is GND, and the other contact or the other contacts are contacts for transmitting information interaction data. That is, in the conventional method, when two electronic devices transmit signal interaction data in a magnetic attraction manner, at least three or more contacts are required to be connected to transmit the signal interaction data.
In the embodiment of the application, the first electronic device is connected with the second electronic device through the first contact and the second contact to transmit the information interaction data, so that the first electronic device and the second electronic device do not need to be connected in a wired mode, and the connection is convenient. When the information interaction data are transmitted to the second electronic equipment, the first electronic equipment converts the information interaction data into a power carrier signal. The first electronic equipment can send the power carrier signal to the second electronic equipment through the first contact and the second contact. The power carrier signal is used for transmitting the information interaction data to the second electronic equipment. Therefore, the more convenient connection mode is adopted, and the information interaction data are transmitted between the electronic equipment and the external electronic equipment.
Compared with the traditional method, when the electronic equipment is connected with the external equipment in a magnetic attraction mode, at least three or more contacts are needed to be connected to transmit the information interaction data, and the transmitted information interaction data is not transmitted in a power carrier signal mode. In the embodiment of the application, only two contacts are needed to realize the transmission of information interaction data. Obviously, the complexity of the internal circuit design of the first electronic device is greatly reduced, and the convenience of connecting the first electronic device with the second electronic device is improved.
In one embodiment, the information interaction data is converted into a power carrier signal; the method comprises the following steps:
and converting the information interaction data through a control chip arranged in the first electronic equipment to obtain a power carrier signal.
Fig. 4 is a schematic diagram illustrating that the first electronic device and the second electronic device are connected by a magnetic attraction manner in one embodiment. Referring to fig. 3, the first electronic device 120 includes a built-in first power module 125, a first processor 127 and a first control Chip 129 (Integrated Circuit Chip, IC), and referring to fig. 3, a first magnetic attraction part 121 and a first conductive part 123 are further disposed on a rear case of the first electronic device 120, and the first conductive part 123 includes a first contact (VBUS) 123a and a second contact (GND) 123b. Of course, the first magnetic attraction part 121 and the first conductive part 123 may also be disposed at other positions of the first electronic device 120, which is not limited in this application.
Correspondingly, the second electronic device 140 includes a built-in second power supply module 145, a second processor 147 and a second control Chip 149 (Integrated Circuit Chip), a second magnetic attraction part (not shown) and a second conductive part (not shown) are further disposed on the rear case of the second electronic device 140, and the second conductive part 143 includes a third contact and a fourth contact. Under the magnetic attraction effect of the first and second magnetic attraction parts 121 and 141, the first electronic device 120 is connected to the third and fourth contacts of the second electronic device through the first and second contacts 123a and 123b. Correspondingly, the second magnetic attraction part and the second conductive part may also be disposed at other positions of the second electronic device 140, which is not limited in this application.
Specifically, when the first electronic device needs to transmit the information interaction data to the second electronic device, the information interaction data is converted by the first control chip 129 built in the first electronic device, so as to obtain the power carrier signal. The information interaction data may be sent to the first control chip 129 by the first processor 127, and then the information interaction data is converted by the first control chip 129 to obtain a power carrier signal. The format of the information interaction data includes a message in a CAN (Controller Area Network) format. The CAN bus is a serial communication protocol bus for real-time applications, and CAN-format messages (CAN messages for short) CAN be transmitted using twisted pair cables. Features of the CAN protocol include serial data communication that CAN provide integrity, real-time support, transmission rates up to 1Mb/s, and 11-bit addressing and error detection capabilities. In the embodiment of the present application, the protocol layer when the first processor 127 sends the information interaction data to the first control chip 129 is based on the CAN2.0 protocol.
When the information interaction data are converted through the control chip arranged in the first electronic device to obtain the power carrier signal, the control chip receives the CAN message sent by the processor, and the CAN message is converted into the alternating current signal through the circuit in the control chip, so that the information interaction data are converted to obtain the power carrier signal. Then, the power carrier signal is sent to the second electronic device.
In the embodiment of the application, when the information interaction data is converted by the control chip built in the first electronic device to obtain the power carrier signal, the control chip receives the CAN message sent by the processor, and the CAN message is converted into the alternating current signal by the circuit inside the control chip, so that the information interaction data is converted to obtain the power carrier signal. Then, the alternating current signal is loaded between the first contact and the second contact, and the purpose of simultaneously sending the power carrier signal to the second electronic device is achieved.
In one embodiment, there is provided a signal transmission method, further comprising:
detecting whether the first contact and the second contact are connected with the second electronic equipment or not through a Hall sensor arranged in the first electronic equipment to obtain a detection result;
and determining whether to transmit the information interaction data to the second electronic equipment according to the detection result.
As shown in fig. 5, there is provided a signal transmission method including:
and step 520, detecting whether the first contact and the second contact are connected with the second electronic device through a built-in Hall sensor of the first electronic device to obtain a detection result.
Specifically, whether the first contact and the second contact are connected with the second electronic device or not can be accurately detected through a built-in hall sensor of the first electronic device, and a detection result is obtained. Then, the hall sensor may send the detection result to the control chip by means of a signal. The hall sensor can detect whether the first contact and the second contact are connected with the second electronic device through the hall effect, and the details are not repeated herein.
And step 540, determining whether to transmit the information interaction data to the second electronic equipment according to the detection result.
The control chip receives the detection result, and the detection result may include two situations that the first contact and the second contact are connected with the second electronic device, and the first contact and the second contact are not connected with the second electronic device. If the first contact and the second contact are connected with the second electronic device, the control chip controls the first electronic device and the second electronic device to perform handshake connection based on the detection result, and the first electronic device can transmit information interaction data to the second electronic device after the handshake connection is successful. If the first contact and the second contact are not connected with the second electronic device, the control chip obtains that the second electronic device connected with the first electronic device is not detected based on the detection result, or the control chip receives a signal of handshake failure, at this time, the first electronic device does not need to transmit information interaction data to the second electronic device, and power supply does not need to be supplied between the first contact and the second contact of the first electronic device.
If the first contact and the second contact are connected with the second electronic device and the handshake between the first electronic device and the second electronic device is successful, the control chip receives the signal of successful handshake, and then the first electronic device can transmit information interaction data to the second electronic device. Specifically, when the information interaction data is transmitted to the second electronic device, the first electronic device converts the information interaction data into a power carrier signal. The first electronic device may then transmit the power carrier signal to the second electronic device. The power line carrier signal is used for transmitting the information interaction data to the second electronic equipment.
In the embodiment of the application, whether the first contact and the second contact are connected with the second electronic device is detected to obtain a detection result. And determining whether to transmit the information interaction data to the second electronic equipment according to the detection result. If the first contact and the second contact are not connected with the second electronic device, it is indicated that the second electronic device connected with the first electronic device is not detected based on the detection result, or the handshake between the first electronic device and the second electronic device fails, and at this time, the first electronic device does not need to transmit the information interaction data to the second electronic device. Therefore, the power consumption of the electronic device is reduced. And when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power line carrier signals, and the power line carrier signals are sent to the second electronic equipment. Therefore, the information interaction data can be transmitted between the electronic equipment and the external equipment by adopting a more convenient connection mode.
In one embodiment, if the first contact and the second contact are connected with the second electronic device as a result of the detection; as shown in fig. 6, determining whether to transmit the information interaction data to the second electronic device according to the detection result includes:
step 620, converting the handshake signals into power line carrier signals according to the detection result, and sending the power line carrier signals corresponding to the handshake signals to the second electronic device; the handshake signals are used for establishing communication connection between the first electronic equipment and the second electronic equipment;
and if the detection result shows that the first contact and the second contact are connected with the second electronic equipment, the control chip controls the first electronic equipment and the second electronic equipment to perform handshaking according to the detection result. The specific process of handshaking includes: the handshake signals (ping signals) are converted into power carrier signals through the control chip, and the power carrier signals are transmitted to the second electronic device through the first contact and the second contact on the first electronic device. After receiving the power carrier signal, the second electronic device replies the power carrier signal to the first electronic device, and the power carrier signal replied to the first electronic device is a reply signal of the second electronic device to the handshake signal of the first electronic device.
In step 640, if the power carrier signal replied by the second electronic device is received within the first preset time period, it is determined to transmit the information interaction data to the second electronic device.
After the first electronic device converts the handshake signal into a power carrier signal and transmits the power carrier signal to the second electronic device, the control chip determines whether the first electronic device receives the power carrier signal replied by the second electronic device. If the power carrier signal replied by the second electronic device is received within the first preset time period, it indicates that the communication connection is established between the first electronic device and the second electronic device, and at this time, the control chip determines that the information interaction data can be transmitted to the second electronic device. The first preset time period may be determined according to an empirical value, for example, 2ms, 5ms, or other values, which is not limited in this application.
In this embodiment of the application, the handshake signal is converted into a power carrier signal according to the detection result, and the power carrier signal is transmitted to the second electronic device through the first contact and the second contact on the first electronic device. And if the power carrier signal replied by the second electronic equipment is received in the first preset time period, determining to transmit the information interaction data to the second electronic equipment. The first contact and the second contact are detected to be connected with the second electronic equipment through the Hall sensor, and then the communication connection is established between the first electronic equipment and the second electronic equipment through the handshaking process. After the communication connection is established, the first electronic device can transmit the information interaction data to the second electronic device at the same time, so that mutual communication is realized.
In one embodiment, after determining to transmit the information interaction data to the second electronic device, the method further includes:
and if the information interaction data are not transmitted to the second electronic equipment or the information interaction data transmitted by the second electronic equipment are not received in a second preset time period, controlling the voltage between the first contact and the second contact to be zero through a control chip built in the first electronic equipment.
The second preset time period may be determined according to an empirical value, for example, 5ms, 10ms, or other values, which is not limited in this application. In general, the second preset time period may be set to be greater than the first preset time period. If the information interaction data is not transmitted to the second electronic device or the information interaction data transmitted by the second electronic device is not received within the second preset time period, the data is not transmitted on the communication connection between the first electronic device and the second electronic device within the first preset time period. Therefore, the voltage between the first contact and the second contact on the first electronic device can be controlled to be zero by the control chip built in the first electronic device.
In this embodiment of the application, after the first electronic device and the second electronic device successfully handshake, if the control chip monitors that no information interaction data is transmitted to the second electronic device or information interaction data transmitted by the second electronic device is not received in a second preset time period, the control chip built in the first electronic device controls a voltage between the first contact and the second contact to be zero, so as to disconnect the communication connection between the first electronic device and the second electronic device. Namely, the first electronic device actively breaks the communication connection with the second electronic device, thereby reducing the power consumption of the electronic devices.
In one embodiment, there is provided a signal transmission method, further comprising:
if the second power carrier signal replied by the second electronic device is not received within the first preset time period, the voltage between the first contact and the second contact is controlled to be zero through a control chip built in the first electronic device.
In this embodiment, if the detection result indicates that the first contact and the second contact are connected to the second electronic device, the handshake signal is converted into a power carrier signal according to the detection result, and the power carrier signal is transmitted to the second electronic device. If the power carrier signal replied by the second electronic device is not received within the first preset time period, at this time, although the first electronic device is connected with the second electronic device, the second electronic device may not include a control chip, and the power carrier signal cannot be converted into the information interaction data through the control chip, so that the second electronic device cannot receive the handshake signal sent by the first electronic device, and cannot perform handshake to establish communication connection between the first electronic device and the second electronic device. Therefore, the voltage between the first contact and the second contact is continuously kept zero, and the power consumption of the electronic device is reduced.
In one embodiment, if the first contact and the second contact are not connected with the second electronic device as a result of the detection; determining whether to transmit information interaction data to the second electronic device according to the detection result, wherein the determining includes:
and controlling the voltage between the first contact and the second contact to be zero through a control chip built in the first electronic device according to the detection result.
In the embodiment of the application, whether the first contact and the second contact are connected with the second electronic device or not can be detected through a built-in Hall sensor of the first electronic device, and a detection result is obtained. If the first contact and the second contact are not connected with the second electronic device, the control chip obtains that the second electronic device connected with the first electronic device is not detected based on the detection result, and at this moment, the first electronic device does not need to transmit information interaction data to the second electronic device, and power supply does not need to be supplied between the first contact and the second contact of the first electronic device. Therefore, the voltage between the first contact and the second contact is kept to be zero under the control of the control chip built in the first electronic device, so that the power consumption of the electronic device is reduced.
In one embodiment, a signal transmission method is provided, the method further comprising:
converting the first power supply control data into a power carrier signal in the process of charging the second electronic equipment; the first power supply control data is used for controlling the process of charging the second electronic equipment;
the power carrier signal and the first power signal are sent to the second electronic equipment through the first contact and the second contact; the first power signal is used for supplying power to the second electronic device.
Specifically, the first power supply control data herein refers to control data transmitted by the first electronic device to the second electronic device, and the control data is used for controlling a power supply process of the second electronic device. For example, the first power supply control data may be data such as a size of a power signal and a power supply time period for the first electronic device to supply power to the second electronic device, which is not limited in this application. The first power signal includes signals such as voltage and current, can be transmitted through the power line, and can be used for supplying power to the second electronic device.
Therefore, in the process of charging the second electronic device, the power carrier signal generated by converting the first power supply control data and the first power signal can be transmitted to the second electronic device through the power line. Therefore, on the premise that the first electronic equipment is connected with the second electronic equipment in a magnetic attraction mode, the first power supply control data and the first power signal are transmitted to the second electronic equipment through the connection.
Specifically, as shown in fig. 4, when the first electronic device needs to charge the second electronic device, the first control chip 129 built in the first electronic device converts the first power supply control data to obtain a power carrier signal. The first power supply control data may be sent from the first processor 127 to the first control chip 129, and then the first power supply control data is converted by the first control chip 129 to obtain a power carrier signal. The format of the first power supply control data includes a message in a CAN (Controller Area Network) format. The CAN bus is a serial communication protocol bus for real-time applications, and CAN-format messages (CAN messages for short) CAN be transmitted using twisted pair cables. Features of the CAN protocol include serial data communication that CAN provide integrity, real-time support, transmission rates up to 1Mb/s, and 11-bit addressing and error detection capabilities. In the embodiment of the present application, the protocol layer when the first processor 127 sends the first power control data to the first control chip 129 is based on the CAN2.0 protocol.
When the first power supply control data is converted through the control chip arranged in the first electronic device to obtain the power carrier signal, the control chip receives the CAN message sent by the processor, and the CAN message is converted into the alternating current signal through the circuit arranged in the control chip, so that the first power supply control data is converted to obtain the power carrier signal.
And then, the power carrier signal and the first power signal are sent to the second electronic device. The first power signal is a direct current signal, and the control chip can superpose the direct current signal between the first contact and the second contact through the inductor and the alternating current signal through the capacitor. Therefore, the power carrier signal and the first power signal are superposed between the first contact and the second contact, and the power carrier signal and the first power signal are sent to the second electronic equipment.
Fig. 7 (a) shows a partial circuit diagram of the control chip 702, where a PC _ DATA pin on the control chip 702 receives a CAN message sent by the processor, and the CAN message is converted into an ac signal by a circuit inside the control chip 702 and sent to a PC _ SIG pin. And then the alternating current signal is sent to the PC pin from the PC _ SIG pin through a resistor and a capacitor in sequence. The VIN pin of the control chip 702 is loaded with a dc signal, and the dc signal is sequentially transmitted to the PC pin through an inductor and a resistor. Therefore, the alternating current signal and the direct current signal are superposed on the PC pin.
Fig. 7 (b) shows a schematic diagram of the first contact VBUS704 and the second contact GND706 on the first electronic device.
The PC pin on the control chip 702 is connected to the first contact VBUS704 on the first electronic device, and the GND pin on the control chip is connected to the second contact GND706 on the first electronic device.
Fig. 7 (c) shows a circuit diagram corresponding to the zener diode 708 in the first electronic device, and a detailed explanation thereof will be omitted.
Fig. 7 (d) shows a circuit diagram corresponding to the hall sensor 710 in the first electronic device, and a detailed explanation is omitted here.
In the embodiment of the application, in the process of charging the second electronic device, the first power supply control data is converted into the power carrier signal. And transmitting the power carrier signal and the first power signal to the second electronic equipment through the first contact and the second contact. Therefore, the connection mode which is more convenient and fast is adopted, and the power and the data are transmitted between the electronic equipment and the external electronic equipment simultaneously.
In one embodiment, there is provided a signal transmission method, further comprising:
in the process that the second electronic equipment charges the first electronic equipment, receiving a power carrier signal and a second power signal transmitted by the second electronic equipment through the first contact and the second contact;
converting the power carrier signal into second power supply control data; the second power supply control data is used for controlling the process of charging the first electronic equipment by the second electronic equipment, and the second power signal is used for supplying power to the first electronic equipment by the second electronic equipment.
Specifically, on the premise that the first electronic device is connected with the second electronic device in a magnetic attraction manner and communication connection is established, the first electronic device converts the power carrier signal into second power supply control data when receiving the power carrier signal and the second power signal transmitted by the second electronic device. Wherein, the second power signal is also a direct current signal. And the second electronic device powers the first electronic device through the second power signal. That is, not only the first electronic device may transmit the power carrier signal and the first power signal to the second electronic device, that is, the first electronic device may supply power and transmit data to the second electronic device, but also the second electronic device may transmit the power carrier signal and the second power signal to the first electronic device, that is, the second electronic device may supply power and transmit data to the first electronic device.
In the embodiment of the application, the first electronic device and the second electronic device are connected in a magnetic attraction mode, and on the premise that communication connection is established, power can be supplied to the first electronic device and the second electronic device and data can be transmitted between the first electronic device and the second electronic device. Therefore, the use functions of the first electronic device and the second electronic device are expanded, and the use convenience of a user is improved.
In one embodiment, the first electronic device includes a magnetic portion and a conductive portion. The conductive part comprises a first contact and a second contact. Under the magnetic attraction effect of the magnetic attraction part, the first electronic equipment is connected with the second electronic equipment through the first contact and the second contact. As shown in fig. 8, there is provided a signal transmission method applied to a first electronic device, the method including:
step 802: detecting whether the first contact and the second contact are connected with the second electronic equipment or not through a Hall sensor arranged in the first electronic equipment to obtain a detection result;
step 804: judging whether the detection result is that the first contact and the second contact are connected with the second electronic equipment or not; if yes, go to step 806; if not, go to step 816;
step 806: converting the handshake signals into power carrier signals according to the detection result, and transmitting the power carrier signals and the first power signals to the second electronic equipment; the first power signal is used for supplying power to the second electronic equipment so as to support the second electronic equipment to reply the power carrier signal to the first electronic equipment;
step 808: judging whether a power carrier signal replied by the second electronic equipment is received within a first preset time period; if yes, go to step 810; if not, go to step 814;
step 810: determining to transmit information interaction data to second electronic equipment, converting the information interaction data into a power line carrier signal, and sending the power line carrier signal and the first power signal to the second electronic equipment;
step 812: if the information interaction data is not transmitted to the second electronic device or the information interaction data transmitted by the second electronic device is not received within the second preset time period, entering step 816;
step 814: generating a signal of handshake failure with the second electronic device;
step 816: the voltage between the first contact and the second contact is controlled to be zero.
In the embodiment of the application, the first electronic device and the second electronic device are connected in a magnetic attraction mode, and the first electronic device and the second electronic device are not required to be connected in a wired mode, so that the connection is convenient and fast. And whether the first contact and the second contact are connected with the second electronic equipment is accurately detected through a built-in Hall sensor of the first electronic equipment, and a detection result is obtained. And determining whether to transmit the information interaction data to the second electronic equipment according to the detection result. If the first contact and the second contact are not connected with the second electronic device, it is indicated that the second electronic device connected with the first electronic device is not detected based on the detection result, or the first electronic device fails to handshake with the second electronic device, and at this time, the first electronic device does not need to transmit information interaction data to the second electronic device, and power does not need to be supplied between the first contact and the second contact of the first electronic device.
When the Hall sensor detects that the first contact and the second contact are connected with the second electronic device, a communication connection is established between the first electronic device and the second electronic device through a handshaking process. The first electronic device may simultaneously transmit power and transmit data to the second electronic device over the communication connection. Therefore, the electric power and the data are transmitted between the electronic equipment and the external equipment simultaneously in a more convenient connection mode.
In one embodiment, an electronic device comprises a processor, a control chip, a magnetic attraction part, a first contact and a second contact; the processor is in communication connection with the control chip, and the control chip is connected with the first contact and the second contact through power lines; under the magnetic attraction effect of the magnetic attraction part, the electronic equipment is connected with another electronic equipment through the first contact and the second contact;
the processor is used for generating information interaction data and sending the information interaction data to the control chip;
and the control chip is used for converting the information interaction data to obtain a power carrier signal and sending the power carrier signal to another electronic device through the first contact and the second contact.
In this embodiment, because first electronic equipment is connected through the mode of magnetism with second electronic equipment, specifically under the effect of magnetism of portion is inhaled to magnetism, electronic equipment is connected with another electronic equipment through first contact and second contact. The magnetic attraction connection mode is adopted, and the connection does not need to be realized in a wired mode, so that the connection is convenient. However, when the first electronic device and the second electronic device are connected by magnetic attraction, only the power carrier signal can be transmitted. Therefore, when the information interaction data is transmitted to the second electronic device, the first electronic device converts the information interaction data into a power carrier signal. The first electronic device may then transmit the power carrier signal to the second electronic device. The power line carrier signal is used for transmitting the information interaction data to the second electronic equipment. Therefore, the data can be transmitted between the electronic equipment and the external equipment by adopting a more convenient connection mode.
Compared with the traditional method, when the electronic equipment is connected with the external equipment in a magnetic attraction mode, at least three or more contacts are needed to be connected, and information interaction data can be transmitted. In the embodiment of the application, only two contacts are needed to realize the transmission of information interaction data. Obviously, the complexity of the internal circuit design of the first electronic device is greatly reduced, and the convenience of connecting the first electronic device with the second electronic device is improved.
In one embodiment, the electronic device further comprises a hall sensor, and the hall sensor is connected with the control chip;
and the Hall sensor is used for detecting whether the first contact and the second contact are connected with another electronic device.
In the embodiment of the application, whether the first contact and the second contact are connected with the second electronic device can be accurately detected through the built-in Hall sensor of the first electronic device, and a detection result is obtained. Then, the hall sensor can send the detection result to the control chip in a signal mode. And the control chip determines whether to transmit the information interaction data to the second electronic equipment according to the detection result. Therefore, whether the first electronic device is connected with the second electronic device or not is accurately detected through the Hall sensor, and then the subsequent steps of establishing communication connection and sending the power carrier signal to the second electronic device are executed.
In one embodiment, as shown in fig. 9, a signal transmission apparatus 900 is provided, which is applied to a first electronic device, where the first electronic device includes a magnetic attraction portion, a first contact, and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment is connected with second electronic equipment through first contact and second contact, and the device includes:
the signal conversion module 920 is configured to convert the information interaction data into a power carrier signal when transmitting the information interaction data to the second electronic device;
and a signal transmission module 940, configured to send the power carrier signal to the second electronic device through the first contact and the second contact.
In an embodiment, as shown in fig. 10, the detecting module 960 is further configured to detect, through a hall sensor built in the first electronic device, whether the first contact and the second contact are connected to the second electronic device, so as to obtain a detection result; and determining whether to transmit the information interaction data to the second electronic equipment according to the detection result.
In one embodiment, if the first contact and the second contact are connected with the second electronic device as a result of the detection; the detection module 960 is further configured to convert the handshake signal into a power carrier signal according to the detection result, and send the power carrier signal corresponding to the handshake signal to the second electronic device; the handshake signals are used for establishing communication connection between the first electronic equipment and the second electronic equipment; and if the power carrier signal replied by the second electronic equipment is received in the first preset time period, determining to transmit the information interaction data to the second electronic equipment.
In an embodiment, the detecting module 960 is further configured to, after the determining to transmit the information interaction data to the second electronic device, further include controlling, by a control chip built in the first electronic device, that the voltage between the first contact and the second contact is zero if the information interaction data is not transmitted to the second electronic device or the information interaction data transmitted by the second electronic device is not received within a second preset time period.
In an embodiment, the detecting module 960 is further configured to control, by a control chip built in the first electronic device, a voltage between the first contact and the second contact to be zero if a power carrier signal returned by the second electronic device is not received within a first preset time period.
In one embodiment, the detecting module 960 is further configured to detect that the first contact and the second contact are not connected to the second electronic device; according to the detection result, the voltage between the first contact and the second contact of the control chip built in the first electronic device is zero.
In one embodiment, a signal transmission apparatus 900 is provided, which is applied to a first electronic device, and further includes:
the first charging module is used for converting the first power supply control data into a power carrier signal in the process of charging the second electronic equipment; the first power supply control data is used for controlling the process of charging the second electronic equipment;
the power carrier signal and the first power signal are sent to the second electronic equipment through the first contact and the second contact; the first power signal is used for supplying power to the second electronic device.
In one embodiment, a signal transmission apparatus 900 is provided, which is applied to a first electronic device, and further includes:
the second charging module is used for receiving a power carrier signal and a second power signal transmitted by the second electronic equipment through the first contact and the second contact in the process of charging the first electronic equipment by the second electronic equipment;
converting the power carrier signal into second power supply control data; the second power supply control data is used for controlling the process of charging the first electronic equipment by the second electronic equipment, and the second power signal is used for supplying power to the first electronic equipment by the second electronic equipment.
In one embodiment, the power carrier signal is an ac signal and the first power signal is a dc signal.
It should be understood that, although the steps in the flowcharts in the above-described figures are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in the above figures may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the sub-steps or stages of other steps.
The division of each module in the external device connection apparatus is only for illustration, and in other embodiments, the external device connection apparatus may be divided into different modules as needed to complete all or part of the functions of the external device connection apparatus.
For specific limitations of the external device connection device, reference may be made to the above limitations on the signal transmission method, which is not described herein again. The modules in the external device connection device may be implemented wholly or partially by software, hardware, or a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. The processor here may be a control chip.
In one embodiment, an electronic device is further provided, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor is enabled to execute the steps of the signal transmission method provided in the foregoing embodiments.
Fig. 11 is a schematic diagram of an internal structure of an electronic device in one embodiment. As shown in fig. 11, the electronic device includes a processor and a memory connected by a system bus. Wherein, the processor is used for providing calculation and control capability and supporting the operation of the whole electronic equipment. The memory may include non-volatile storage media and internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor to implement a signal transmission method provided in the above embodiments. The internal memory provides a cached operating environment for operating system computer programs in the non-volatile storage medium. The electronic device may be any terminal device such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, and a wearable device.
The modules in the external device connection apparatus provided in the embodiments of the present application may be implemented in the form of a computer program. The computer program may be run on an electronic device or an electronic device. The program modules constituting the computer program may be stored on the electronic device or a memory of the electronic device. Which when executed by a processor, performs the steps of the method described in the embodiments of the present application.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the signal transmission method.
A computer program product containing instructions which, when run on a computer, cause the computer to perform a signal transmission method.
Any reference to memory, storage, database, or other medium used by embodiments of the present application may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct bused dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM).
The above external device connection embodiments only express several implementation manners of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (14)
1. A signal transmission method is characterized by being applied to first electronic equipment, wherein the first electronic equipment comprises a magnetic suction part, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment passes through first contact and second contact and is connected with second electronic equipment, the method includes:
when the information interaction data are transmitted to the second electronic equipment, the information interaction data are converted into power line carrier signals;
transmitting the power carrier signal and a first power signal to the second electronic device through the first contact and a second contact; wherein the first power signal is used to power the second electronic device;
receiving a power carrier signal and a second power signal transmitted by the second electronic device through the first contact and the second contact in a process that the second electronic device charges the first electronic device; wherein the second power signal is used for the second electronic device to power the first electronic device.
2. The signal transmission method of claim 1, further comprising:
detecting whether the first contact and the second contact are connected with the second electronic equipment or not through a Hall sensor arranged in the first electronic equipment to obtain a detection result;
and determining whether to transmit the information interaction data to the second electronic equipment according to the detection result.
3. The signal transmission method according to claim 2, wherein if the first contact and the second contact are connected to a second electronic device as a result of the detection; the determining whether to transmit information interaction data to the second electronic device according to the detection result includes:
converting the handshake signals into power carrier signals according to the detection result, and sending the power carrier signals corresponding to the handshake signals to the second electronic equipment; the handshake signals are used for establishing communication connection between the first electronic device and the second electronic device;
and if the power carrier signal replied by the second electronic equipment is received within a first preset time period, determining to transmit the information interaction data to the second electronic equipment.
4. The signal transmission method according to claim 3, further comprising, after the determining to transmit the information interaction data to the second electronic device:
and if the information interaction data are not transmitted to the second electronic device or the information interaction data transmitted by the second electronic device are not received in a second preset time period, controlling the voltage between the first contact and the second contact to be zero through a control chip built in the first electronic device.
5. The signal transmission method of claim 3, further comprising:
if the power carrier signal replied by the second electronic device is not received within the first preset time period, controlling the voltage between the first contact and the second contact to be zero through a control chip built in the first electronic device.
6. The signal transmission method according to claim 2, wherein if the detection result indicates that the first contact and the second contact are not connected to a second electronic device; the determining whether to transmit information interaction data to the second electronic device according to the detection result includes:
and controlling the voltage between the first contact and the second contact to be zero through a control chip built in the first electronic device according to the detection result.
7. The signal transmission method of claim 1, further comprising:
converting first power supply control data into a power carrier signal in a process of charging the second electronic device; the first power supply control data is used for controlling the process of charging the second electronic equipment;
and sending the power carrier signal and the first power signal to the second electronic equipment through the first contact and the second contact.
8. The signal transmission method of claim 1, further comprising:
converting the power carrier signal transmitted by the second electronic device into second power supply control data; wherein the second power supply control data is used for the second electronic device to control a process of charging the first electronic device.
9. The signal transmission method according to claim 7, wherein the power carrier signal is an ac signal and the first power signal is a dc signal.
10. An electronic device is characterized by comprising a processor, a control chip, a magnetic suction part, a first contact and a second contact; the processor is in communication connection with the control chip, and the control chip is connected with the first contact and the second contact through power lines; under the magnetic attraction effect of the magnetic attraction part, the electronic equipment is connected with another electronic equipment through the first contact and the second contact;
the processor is used for generating information interaction data and sending the information interaction data to the control chip;
the control chip is used for converting the information interaction data to obtain a power carrier signal and sending the power carrier signal and a first power signal to another electronic device through the first contact and the second contact; wherein the first power signal is used to power the other electronic device;
the control chip is further configured to receive, through the first contact and the second contact, a power carrier signal and a second power signal transmitted by the other electronic device in a process of charging the other electronic device to the electronic device; wherein the second power signal is used for the other electronic device to power the electronic device.
11. The electronic device of claim 10, further comprising a hall sensor, the hall sensor being connected to the control chip;
and the Hall sensor is used for detecting whether the first contact and the second contact are connected with another electronic device or not.
12. A signal transmission device is characterized by being applied to first electronic equipment, wherein the first electronic equipment comprises a magnetic suction part, a first contact and a second contact; under the effect of magnetism of portion is inhaled to magnetism, first electronic equipment passes through first contact and second contact are connected with second electronic equipment, the device includes:
the signal conversion module is used for converting the information interaction data into a power carrier signal when the information interaction data are transmitted to the second electronic equipment;
the signal transmission module is used for transmitting the power carrier signal and the first power signal to the second electronic equipment through the first contact and the second contact; wherein the first power signal is used to power the second electronic device;
the signal transmission module is further configured to receive, through the first contact and the second contact, a power carrier signal and a second power signal transmitted by the second electronic device in a process in which the second electronic device charges the first electronic device; wherein the second power signal is used for the second electronic device to power the first electronic device.
13. An electronic device comprising a memory and a control chip, the memory having a computer program stored therein, wherein the computer program, when executed by the control chip, causes the control chip to perform the steps of the signal transmission method according to any one of claims 1 to 9.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a control chip, carries out the steps of the signal transmission method according to any one of claims 1 to 9.
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| CN109510267A (en) * | 2018-11-30 | 2019-03-22 | 歌尔股份有限公司 | The charging method of wireless headset, charging box, wireless headset charging system and wireless headset |
| CN109640207B (en) * | 2018-12-24 | 2020-05-01 | 歌尔科技有限公司 | Communication control method, device and system, charging box and wireless earphone |
| CN110994718B (en) * | 2019-11-28 | 2023-11-07 | 歌尔科技有限公司 | Wireless earphone, charging box and wireless earphone charging system |
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| CN112448448A (en) * | 2020-11-13 | 2021-03-05 | Oppo广东移动通信有限公司 | Charging control method and device, earphone, electronic equipment and readable storage medium |
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