CN211701607U - Power control system and automatic driving vehicle - Google Patents
Power control system and automatic driving vehicle Download PDFInfo
- Publication number
- CN211701607U CN211701607U CN202020488675.6U CN202020488675U CN211701607U CN 211701607 U CN211701607 U CN 211701607U CN 202020488675 U CN202020488675 U CN 202020488675U CN 211701607 U CN211701607 U CN 211701607U
- Authority
- CN
- China
- Prior art keywords
- resistor
- transistor
- switch
- sensor
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the utility model discloses power control system and autopilot vehicle. The power supply control system comprises a first power supply, a second power supply and a control module; the control module comprises a first switch circuit, a second switch circuit, a first sampling circuit and a control unit; the first sampling circuit is used for collecting a first voltage signal of a second end of the first switching circuit; the control unit is used for acquiring the first voltage signal, and controlling the first switch circuit to be switched from the on state to the off state when the first voltage signal is larger than a first threshold value or smaller than a second threshold value, and controlling the second switch circuit to be switched from the off state to the on state, so that the second power supply supplies power to the sensor. The embodiment of the utility model provides a power control system can be for the stable power supply of the sensor in the autopilot vehicle, and can switch into the second mains operated automatically when first power failure, improves the security of autopilot vehicle.
Description
Technical Field
The embodiment of the utility model provides a relate to the mains operated technique, especially relate to a power control system and autopilot vehicle.
Background
With the development of the internet of things technology, the automotive electronic technology and the vehicle-mounted sensor technology, the automatic driving vehicle also comes. The automatic driving vehicle senses the road environment through the vehicle-mounted sensing system, controls the steering and the speed of the vehicle according to the road, the vehicle position and the obstacle information obtained by sensing, automatically plans a driving route and controls the vehicle to reach a preset target, and therefore the vehicle can safely and reliably run on the road.
Along with the development of the technology, the types of sensors mounted on the automatic driving vehicle are more and more, the sensors mainly relate to a laser radar, a front-back millimeter wave radar, a lateral millimeter wave radar, an ultrasonic radar, a panoramic camera, a forward-looking camera, inertial navigation and the like, and a power supply is a premise for ensuring the normal and stable work of the sensors, so that the design of a system for refitting the automatic driving vehicle is fully considered. At present, many automatic driving vehicles on the market are modified by a host factory or a research unit, a sensor power supply is supplied with power by a vehicle storage battery, but if a circuit connected with the storage battery is in a problem, the whole set of sensors can not work, and the safety problem is easily caused.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a power control system and autopilot vehicle, this power control system can be for the stable power supply of the sensor in the autopilot vehicle, and can switch into the second mains operated automatically when first power failure, improves the security of autopilot vehicle.
In a first aspect, an embodiment of the present invention provides a power control system for supplying power to at least one sensor, where the power control system includes a first power source, a second power source, and a control module;
the control module comprises a first switch circuit, a second switch circuit, a first sampling circuit and a control unit;
the output end of the first power supply is connected with the first end of the first switch circuit, the sensor is connected with the second end of the first switch circuit, and the control unit is connected with the control end of the first switch circuit;
the first end of the first sampling circuit is connected with the second end of the first switch circuit, the second end of the first sampling circuit is connected with the control unit, and the first sampling circuit is used for collecting a first voltage signal of the second end of the first switch circuit;
the output end of the second power supply is connected with the first end of the second switch circuit, the sensor is connected with the second end of the second switch circuit, and the control unit is connected with the control end of the second switch circuit;
the control unit is used for acquiring the first voltage signal, and when the first voltage signal is greater than a first threshold value or smaller than a second threshold value, controlling the first switch circuit to be switched from the on state to the off state, and controlling the second switch circuit to be switched from the off state to the on state, so that the second power supply supplies power to the sensor.
In a second aspect, the embodiments of the present invention further provide an automatic driving vehicle, including:
a vehicle body having a plurality of sensors disposed thereon; and any one of the above power control systems.
The embodiment of the utility model provides a power control system, including first power, second power and control module; the control module comprises a first switch circuit, a second switch circuit, a first sampling circuit and a control unit; the first switch circuit is arranged between the first power supply and the sensor, so that the first switch circuit controls the first power supply to be connected with or disconnected from the sensor; the second switch circuit is arranged between the second power supply and the sensor, so that the second switch circuit controls the second power supply to be connected or disconnected with the sensor; collecting a first voltage signal at the output end of the first switching circuit through a first sampling circuit; the first voltage signal is obtained through the control unit, and when the first voltage signal is larger than a first threshold value or smaller than a second threshold value, the first switch circuit is controlled to be switched from a conducting state to a disconnecting state, and the second switch circuit is switched from the disconnecting state to the conducting state, so that the second power supply supplies power for the sensor, the first power supply is automatically switched to the second power supply when the power supply of the first power supply is abnormal, and the problems of potential safety hazards and the like caused by abnormal power supply of the sensor are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a power control system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another power control system provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another power control system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another power control system provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another power control system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a charging module according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another power control system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another power control system according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a first switch circuit according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a second switch circuit according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a first backflow prevention module according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a second backflow prevention module according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present invention are described in terms of the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element. The terms "first," "second," and the like, are used for descriptive purposes only and not for purposes of limitation, and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Fig. 1 is a schematic structural diagram of a power control system according to an embodiment of the present invention. Referring to fig. 1, the power control system provided in the present embodiment may be used to supply power to at least one sensor 100, and includes a first power source 10, a second power source 20, and a control module 30; the control module 30 includes a first switch circuit 31, a second switch circuit 32, a first sampling circuit 33, and a control unit 34; the output end of the first power supply 10 is connected with the first end of the first switch circuit 31, the sensor 100 is connected with the second end of the first switch circuit 31, and the control unit 34 is connected with the control end of the first switch circuit 31; a first end of the first sampling circuit 33 is connected to a second end of the first switch circuit 31, a second end of the first sampling circuit 33 is connected to the control unit 34, and the first sampling circuit 33 is configured to collect a first voltage signal of the second end of the first switch circuit 31; the output end of the second power supply 20 is connected with the first end of the second switch circuit 32, the sensor 100 is connected with the second end of the second switch circuit 32, and the control unit 34 is connected with the control end of the second switch circuit 32; the control unit 34 is configured to obtain the first voltage signal, and when the first voltage signal is greater than a first threshold or smaller than a second threshold, control the first switch circuit 31 to switch from the on state to the off state, and control the second switch circuit 32 to switch from the off state to the on state, so that the second power supply 20 supplies power to the sensor 100.
It is understood that the power control system provided in the present embodiment may be used for an autonomous driving vehicle, wherein the sensor 100 may be a laser radar, a camera, or the like, and the control Unit 34 may be an Electronic Control Unit (ECU) of the vehicle. The first power supply 10 is an on-board battery for supplying power to various electronic devices on the vehicle, and is also a default power supply for the operation of the sensor 100, and the second power supply 20 serves as a backup power supply for the sensor 100. That is, normally, the first switch circuit 31 is in an on state, and the second switch circuit 32 is in an off state. The control unit 34 can obtain the first voltage signal at the output end of the first switch circuit 31 collected by the first sampling circuit 33, when the first voltage signal is abnormal, the first power supply 10 is indicated to be abnormal, the control unit 34 controls the first switch circuit 31 to be switched off, the second switch circuit 32 to be switched on, and the sensor 100 is supplied with power by the second power supply 20, so that the reliability of power supply of the sensor 100 is improved.
According to the technical scheme of the embodiment, the first switch circuit is arranged between the first power supply and the sensor, so that the first switch circuit controls the first power supply to be connected or disconnected with the sensor; the second switch circuit is arranged between the second power supply and the sensor, so that the second switch circuit controls the second power supply to be connected or disconnected with the sensor; collecting a first voltage signal at the output end of the first switching circuit through a first sampling circuit; the first voltage signal is obtained through the control unit, and when the first voltage signal is larger than a first threshold value or smaller than a second threshold value, the first switch circuit is controlled to be switched from a conducting state to a disconnecting state, and the second switch circuit is switched from the disconnecting state to the conducting state, so that the second power supply supplies power for the sensor, the first power supply is automatically switched to the second power supply when the power supply of the first power supply is abnormal, and the problems of potential safety hazards and the like caused by abnormal power supply of the sensor are avoided.
On the basis of the above technical solution, fig. 2 is a schematic structural diagram of another power control system provided by an embodiment of the present invention. Referring to fig. 2, optionally, the power control system provided in this embodiment further includes a first backflow prevention module 40 and a second backflow prevention module 50; the first end of the first backflow prevention module 40 is connected to the second end of the first switch circuit 31, the second end of the first backflow prevention module 40 is connected to the sensor 100, and the first backflow prevention module 40 is configured to prevent current from flowing from the sensor 100 to the first power supply 10; the first terminal of the second backflow prevention module 50 is connected to the second terminal of the second switch circuit 32, the second terminal is connected to the sensor 100, and the second backflow prevention module 50 is configured to prevent current from flowing from the sensor 100 to the second power supply 20.
It is understood that the first backflow prevention module 40 allows current to flow from the first switching circuit 31 to the sensor 100, but prevents current from flowing in the reverse direction, thereby preventing current generated when the second power supply 20 supplies power to the sensor 100 from flowing into the first power supply 10; the second backflow prevention module 50 allows current to flow from the second switching circuit 32 to the sensor 100, and prevents the current from flowing in the reverse direction, so that the current generated when the first power supply 10 supplies power to the sensor 100 is prevented from flowing into the second power supply 20, and the safety performance of the power control system is improved.
Fig. 3 is a schematic structural diagram of another power control system according to an embodiment of the present invention. Referring to fig. 3, optionally, the control module 30 further includes a second sampling circuit 35 and a third sampling circuit 36; a first end of the second sampling circuit 35 is connected with a second end of the first backflow prevention module 40, a second end of the second sampling circuit 35 is connected with the control unit 34, and the second sampling circuit 35 is used for collecting a second voltage signal of the second end of the first backflow prevention module 40; a first end of the third sampling circuit 36 is connected with a first end of the second backflow prevention module 50, a second end of the third sampling circuit 36 is connected with the control unit 34, and the third sampling circuit 36 is used for collecting a third voltage signal of the first end of the second backflow prevention module 50; the power control system further comprises an alarm module 60, wherein the alarm module 60 is connected with the control unit 34; the control unit 34 is configured to obtain a second voltage signal and a third voltage signal, and control the alarm module 60 to output alarm information when at least one of the three conditions that the first voltage signal is greater than a first threshold or smaller than a second threshold, the second voltage signal is greater than a third threshold or smaller than a fourth threshold, and the third voltage signal is greater than a fifth threshold or smaller than a sixth threshold is satisfied.
It can be understood that the first voltage signal is an output signal of the first switch circuit 31, the second voltage signal is a signal between the output end of the first backflow prevention module 40 and the input end of the sensor 100, the third voltage signal is an output signal of the second switch circuit 32, when the first voltage signal and the second voltage signal are abnormal, the control unit 34 controls the second switch circuit 32 to be conducted, the second power supply 20 supplies power, the alarm module 60 outputs abnormal power supply of the first power supply 10, and the sensor 100 is provided with alarm information supplied by the second power supply 20 to remind a user of timely maintenance. During concrete implementation, alarm information can be through modes such as voice broadcast, word display, the embodiment of the utility model provides a do not do the injecing. When the third voltage signal is abnormal, the alarm module 60 may also output alarm information indicating that the second power supply 20 is abnormal and inform a customer in time, so as to avoid potential safety hazards.
Fig. 4 is a schematic structural diagram of another power control system according to an embodiment of the present invention. Referring to fig. 4, optionally, the power management system provided in this embodiment further includes a voltage regulation module 70, a first end of the voltage regulation module 70 is connected to the output end of the first power supply 10, and a second end of the voltage regulation module 70 is connected to the first end of the first switching circuit 31.
It is understood that when the power management system provided in the present embodiment is used in an autonomous vehicle, the first power supply 10 is also used to supply power to other electronic devices, and in order to maintain the stability of the power supply of the sensor 100, the voltage regulation module 70 may not affect the operation of the sensor 100 when there is a small fluctuation (e.g., overcharge) in the first power supply 10, thereby improving the reliability of the power management system.
Fig. 5 is a schematic structural diagram of another power control system according to an embodiment of the present invention. Referring to fig. 5, optionally, the power management system provided in this embodiment further includes a charging module 80, a first end of the charging module 80 is connected to the first power supply 10, a second end of the charging module 80 is connected to the second power supply 20, and the charging module 80 is configured to charge the second power supply 20.
By providing the charging module 80, the first power source 10 can charge the second power source 20 through the charging module 80. In one embodiment, the voltage of the first power source 10 may be converted into an alternating current by providing an inverter to charge the second power source 20.
For example, fig. 6 is a schematic structural diagram of a charging module according to an embodiment of the present invention. Referring to fig. 6, the charging module includes an input control unit 81, an inverter unit 82, and an output control unit 83, where the input control unit 81 includes an EMI filter circuit, a FET switch circuit, and a PWM control circuit, the inverter unit 82 includes a transformer and a capacitor, and the output control unit 83 includes a first rectifying filter circuit and a second rectifying filter circuit, where the first rectifying filter circuit may output a charging current of 1A, and the second rectifying filter circuit may output a charging current of 3A.
Fig. 7 is a schematic structural diagram of another power control system according to an embodiment of the present invention. Referring to fig. 7, optionally, the power control system provided in this embodiment further includes a communication module 90, where the communication module 90 is connected to the control unit 34, and the communication module 90 is configured to upload the power state of the sensor 100 to the cloud server. During specific implementation, the communication module 90 may select an ethernet communication module, and may upload the power state of the sensor 100 to the cloud server for monitoring and analysis.
It should be noted that, in the above embodiments, the modules included in the power control system may be combined with each other according to actual requirements to form further embodiments, and fig. 8 is a schematic structural diagram of another power control system provided in an embodiment of the present invention. Referring to fig. 8, the power control system provided by this embodiment includes a first power supply 10, a second power supply 20, a control module 30, a first backflow prevention module 40, a second backflow prevention module 50, an alarm module 60, a voltage regulation module 70, a charging module 80, and a communication module 90, and in other embodiments, some modules that do not affect the function of the power control system may be deleted according to actual needs, which is not limited by the embodiment of the present invention.
For example, fig. 9 is a schematic structural diagram of a first switch circuit according to an embodiment of the present invention. Referring to fig. 9, optionally, the first switching circuit includes a first transistor T1, a first relay K1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first switching diode D1, and a first light emitting diode D2; a first terminal of the first resistor R1 is connected to the control unit 34, and a second terminal is connected to a control terminal of the first transistor T1; a first end of the second resistor R2 is connected to a second end of the first resistor R1, and a second end is connected to a first end of the first transistor T1; a first terminal of the third resistor R3 is connected to the first terminal of the first transistor T1, and a second terminal is connected to the first voltage terminal V1; the first relay K1 includes a first coil K11 and a first switch K12, a first terminal a of the first coil K11 is connected to a second terminal of the first transistor T1, and a second terminal b is grounded; the common terminal c of the first switch K12 is connected with the output terminal of the first power supply 10, the normally closed terminal d of the first switch K12 is connected with the sensor 100, and the normally open terminal e of the first switch K12 is in open connection; the anode of the first switching diode D1 is connected to the second end b of the first coil K11, the cathode is connected to the first end a of the first coil K11, the first end of the fourth resistor R4 is connected to the cathode of the first switching diode D1, the second end of the fourth resistor R4 is connected to the anode of the first light emitting diode D2, and the cathode of the first light emitting diode D2 is connected to the anode of the first switching diode D.
It can be understood that the first power source 10 and the sensor 100 are respectively connected to the common terminal c and the normally closed terminal d of the first switch K12 of the first relay K1, in a default state, the first power source 10 supplies power to the sensor 100, when the first sampling circuit detects that the first voltage signal is abnormal, the control unit 34 sends a first power off signal to the first transistor T1, the first transistor T1 is turned on, the first relay K1 is powered on, and the first switch K12 turns on the common terminal c and the normally open terminal e, so that the connection between the first power source 10 and the sensor 100 is disconnected. At this time, the first light emitting diode D2 lights up, indicating that the first power supply 10 stops supplying power to the sensor 100.
Fig. 10 is a schematic structural diagram of a second switch circuit according to an embodiment of the present invention. Referring to fig. 10, optionally, the second switching circuit includes a second transistor T2, a second relay K2, a fifth resistor R5, a sixth resistor R6, a seventh resistor T7, an eighth resistor R8, a second switching diode D3, and a second light emitting diode D4; a first end of the fifth resistor R5 is connected to the control unit 34, and a second end is connected to the control end of the second transistor T2; a first end of the sixth resistor R6 is connected to a second end of the fifth resistor R5, and a second end is connected to a first end of the second transistor T2; a first end of the seventh resistor R7 is connected to the first end of the second transistor T2, and a second end is connected to the second voltage terminal V2; the second relay K2 includes a second coil K21 and a second switch K22, a first end a of the second coil K21 is connected to a second end b of the second transistor T2, and the second end b is grounded; the common terminal c of the second switch K22 is connected with the output terminal of the second power supply 20, the normally open terminal e of the second switch K22 is connected with the sensor 100, and the normally closed terminal d of the second switch K22 is in idle connection; the anode of the second switch diode D3 is connected to the second end b of the second coil K21, the cathode is connected to the first end a of the second coil K21, the first end of the eighth resistor R8 is connected to the cathode of the second switch diode D3, the second end of the eighth resistor R8 is connected to the anode of the second light emitting diode D4, and the cathode of the second light emitting diode D4 is connected to the anode of the second switch diode D3.
It is understood that the basic structure of the second switch circuit is the same as the first switch circuit, except that the common terminal c of the second switch K22 is connected to the second power source 20, and the normally open terminal e is connected to the sensor 100, so that the second power source 20 and the sensor 100 are kept in an off state in a default state, when the first sampling circuit detects the abnormality of the first voltage signal, the control unit 34 sends a second power-on signal to the second transistor T2, the second transistor T2 is turned on, the second relay K2 is powered on, and the second switch K22 turns on the common terminal c and the normally open terminal e, so that the connection of the second power source 20 and the sensor 100 is switched on. At this point, the second light emitting diode D4 lights up, indicating that the second power source 20 is beginning to power the sensor 100. The first voltage terminal V1 and the second voltage terminal V2 may be connected to the same voltage terminal, for example, 12V, and may be selected according to the actual circuit structure in the specific implementation.
Fig. 11 is a schematic structural diagram of a first backflow prevention module according to an embodiment of the present invention. Referring to fig. 11, optionally, the first backflow prevention module includes a third transistor T3, a fourth transistor T4, a fifth transistor T5, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12; a first end of the ninth resistor R9 is connected to the second end of the first switch circuit 31, a second end is connected to a first end of the tenth resistor R10, and a second end of the tenth resistor R10 is grounded; a control terminal of the third transistor T3 is connected to a first terminal of the tenth resistor R10, the first terminal is grounded, and a second terminal is connected to a control terminal of the fourth transistor T4; a second terminal of the fourth transistor T4 is connected to a first terminal of the ninth resistor R9, a first terminal of the eleventh resistor R11, and a second terminal of the eleventh resistor R11 is connected to a control terminal of the fourth transistor T4; a first end of the twelfth resistor R12 is connected to the control end of the fifth transistor T5, and a second end is connected to the control end of the fourth transistor T4; a first terminal of the fifth transistor T5 is connected to a first terminal of the eleventh resistor R11, and a second terminal is connected to the sensor 100.
Fig. 12 is a schematic structural diagram of a second backflow prevention module according to an embodiment of the present invention. Referring to fig. 12, the second backflow prevention module includes a sixth transistor T6, a seventh transistor T7, an eighth transistor T8, a thirteenth resistor T13, a fourteenth resistor R14, a fifteenth resistor R15, and a sixteenth resistor R16; a first end of the thirteenth resistor R13 is connected to the second end of the second switch circuit 32, a second end is connected to the first end of the fourteenth resistor R14, and a second end of the fourteenth resistor R14 is grounded; a control terminal of the sixth transistor T6 is connected to the first terminal of the fourteenth resistor R14, the first terminal is grounded, and the second terminal is connected to the control terminal of the seventh transistor T7; a second end of the seventh transistor T7 is connected to a first end of the thirteenth resistor R13, a first end of the thirteenth resistor R13 is connected to a first end of the fifteenth resistor R15, and a second end of the fifteenth resistor R15 is connected to a control end of the seventh transistor T7; a first end of the sixteenth resistor R16 is connected to the control terminal of the eighth transistor T8, and a second end is connected to the control terminal of the seventh transistor T7; the eighth transistor T8 has a first terminal connected to the first terminal of the fifteenth resistor R15, and a second terminal connected to the sensor 100.
The anti-backflow circuit provided by the embodiment can enable current to flow from left to right (from the first power supply or the second power supply to the sensor), but cannot enable current to flow from right to left (for example, the current provided by the sensor by the first power supply cannot flow to the second power supply through the second anti-backflow circuit), so that the stability and the safety of the circuit control system are improved.
The embodiment of the utility model provides an automatic driving vehicle is still provided, include: the vehicle body is provided with a plurality of sensors; and any one of the power control systems provided by the above embodiments.
Optionally, the first power supply is a vehicle-mounted storage battery, and the second power supply is an uninterruptible power supply UPS or a removable storage battery.
The embodiment of the utility model provides an automatic driving vehicle is through setting up first power and second power in power control system to automatic switch over when first mains operated power supply is unusual into second mains operated power supply, avoids the potential safety hazard scheduling problem that the sensor power supply leads to unusually, improves the security of automatic driving vehicle.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A power control system for powering at least one sensor, the power control system comprising a first power source, a second power source, and a control module;
the control module comprises a first switch circuit, a second switch circuit, a first sampling circuit and a control unit;
the output end of the first power supply is connected with the first end of the first switch circuit, the sensor is connected with the second end of the first switch circuit, and the control unit is connected with the control end of the first switch circuit;
the first end of the first sampling circuit is connected with the second end of the first switch circuit, the second end of the first sampling circuit is connected with the control unit, and the first sampling circuit is used for collecting a first voltage signal of the second end of the first switch circuit;
the output end of the second power supply is connected with the first end of the second switch circuit, the sensor is connected with the second end of the second switch circuit, and the control unit is connected with the control end of the second switch circuit;
the control unit is used for acquiring the first voltage signal, and when the first voltage signal is greater than a first threshold value or smaller than a second threshold value, controlling the first switch circuit to be switched from the on state to the off state, and controlling the second switch circuit to be switched from the off state to the on state, so that the second power supply supplies power to the sensor.
2. The power control system of claim 1, further comprising a first backflow prevention module and a second backflow prevention module;
the first end of the first backflow prevention module is connected with the second end of the first switch circuit, the second end of the first backflow prevention module is connected with the sensor, and the first backflow prevention module is used for preventing current from flowing from the sensor to the first power supply;
the first end of the second backflow prevention module is connected with the second end of the second switch circuit, the second end of the second backflow prevention module is connected with the sensor, and the second backflow prevention module is used for preventing current from flowing to the second power supply from the sensor.
3. The power control system of claim 2, wherein the control module further comprises a second sampling circuit and a third sampling circuit;
the first end of the second sampling circuit is connected with the second end of the first backflow prevention module, the second end of the second sampling circuit is connected with the control unit, and the second sampling circuit is used for collecting a second voltage signal of the second end of the first backflow prevention circuit;
the first end of the third sampling circuit is connected with the first end of the second backflow prevention module, the second end of the third sampling circuit is connected with the control unit, and the third sampling circuit is used for collecting a third voltage signal of the first end of the second backflow prevention circuit;
the power supply control system also comprises an alarm module, and the alarm module is connected with the control unit;
the control unit is used for acquiring the second voltage signal and the third voltage signal, and controlling the alarm module to output alarm information when at least one of three conditions that the first voltage signal is greater than a first threshold value or less than a second threshold value, the second voltage signal is greater than a third threshold value or less than a fourth threshold value, and the third voltage signal is greater than a fifth threshold value or less than a sixth threshold value is met.
4. The power control system of claim 1, further comprising a voltage regulation module, a first terminal of the voltage regulation module being connected to the output terminal of the first power source, and a second terminal of the voltage regulation module being connected to the first terminal of the first switching circuit.
5. The power control system of claim 1, further comprising a charging module having a first end coupled to the first power source and a second end coupled to the second power source, the charging module configured to charge the second power source.
6. The power control system of claim 1, further comprising a communication module connected to the control unit, the communication module configured to upload the power status of the sensor to a cloud server.
7. The power control system of claim 1, wherein the first switching circuit comprises a first transistor, a first relay, a first resistor, a second resistor, a third resistor, a fourth resistor, a first switching diode, and a first light emitting diode;
the first end of the first resistor is connected with the control unit, and the second end of the first resistor is connected with the control end of the first transistor;
the first end of the second resistor is connected with the second end of the first resistor, and the second end of the second resistor is connected with the first end of the first transistor;
the first end of the third resistor is connected with the first end of the first transistor, and the second end of the third resistor is connected with the first voltage end;
the first relay comprises a first coil and a first switch, wherein a first end of the first coil is connected with a second end of the first transistor, and a second end of the first coil is grounded; the common end of the first switch is connected with the output end of the first power supply, the normally closed end of the first switch is connected with the sensor, and the normally open end of the first switch is in idle connection;
the anode of the first switch diode is connected with the second end of the first coil, the cathode of the first switch diode is connected with the first end of the first coil, the first end of the fourth resistor is connected with the cathode of the first switch diode, the second end of the fourth resistor is connected with the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is connected with the anode of the first switch diode;
the second switch circuit comprises a second transistor, a second relay, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second switch diode and a second light emitting diode;
a first end of the fifth resistor is connected with the control unit, and a second end of the fifth resistor is connected with the control end of the second transistor;
a first end of the sixth resistor is connected with a second end of the fifth resistor, and a second end of the sixth resistor is connected with a first end of the second transistor;
a first end of the seventh resistor is connected with a first end of the second transistor, and a second end of the seventh resistor is connected with a second voltage end;
the second relay comprises a second coil and a second switch, wherein the first end of the second coil is connected with the second end of the second transistor, and the second end of the second coil is grounded; the common end of the second switch is connected with the output end of the second power supply, the normally open end of the second switch is connected with the sensor, and the normally closed end of the second switch is in idle connection;
the positive pole of the second switch diode is connected with the second end of the second coil, the negative pole of the second switch diode is connected with the first end of the second coil, the first end of the eighth resistor is connected with the negative pole of the second switch diode, the second end of the eighth resistor is connected with the positive pole of the second light-emitting diode, and the negative pole of the second light-emitting diode is connected with the positive pole of the second switch diode.
8. The power control system of claim 2, wherein the first backflow prevention module comprises a third transistor, a fourth transistor, a fifth transistor, a ninth resistor, a tenth resistor, an eleventh resistor, and a twelfth resistor;
a first end of the ninth resistor is connected with a second end of the first switch circuit, a second end of the ninth resistor is connected with a first end of the tenth resistor, and a second end of the tenth resistor is grounded;
a control end of the third transistor is connected with a first end of the tenth resistor, the first end of the third transistor is grounded, and a second end of the third transistor is connected with a control end of the fourth transistor;
a second end of the fourth transistor is connected with a first end of the ninth resistor, a first end of the ninth resistor is connected with a first end of the eleventh resistor, and a second end of the eleventh resistor is connected with a control end of the fourth transistor;
a first end of the twelfth resistor is connected with the control end of the fifth transistor, and a second end of the twelfth resistor is connected with the control end of the fourth transistor;
a first end of the fifth transistor is connected with a first end of the eleventh resistor, and a second end of the fifth transistor is connected with the sensor;
the second backflow prevention module comprises a sixth transistor, a seventh transistor, an eighth transistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor and a sixteenth resistor;
a first end of the thirteenth resistor is connected with a second end of the second switch circuit, a second end of the thirteenth resistor is connected with a first end of the fourteenth resistor, and a second end of the fourteenth resistor is grounded;
a control end of the sixth transistor is connected with a first end of the fourteenth resistor, the first end of the sixth transistor is grounded, and a second end of the sixth transistor is connected with a control end of the seventh transistor;
a second end of the seventh transistor is connected with a first end of the thirteenth resistor, a first end of the seventh transistor is connected with a first end of the fifteenth resistor, and a second end of the fifteenth resistor is connected with a control end of the seventh transistor;
a first end of the sixteenth resistor is connected with the control end of the eighth transistor, and a second end of the sixteenth resistor is connected with the control end of the seventh transistor;
a first end of the eighth transistor is connected to a first end of the fifteenth resistor, and a second end of the eighth transistor is connected to the sensor.
9. An autonomous vehicle, comprising:
a vehicle body having a plurality of sensors disposed thereon; and
a power control system as claimed in any one of claims 1 to 8.
10. The autonomous-capable vehicle of claim 9, wherein the first power source is an on-board battery and the second power source is an Uninterruptible Power Supply (UPS) or a removable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488675.6U CN211701607U (en) | 2020-04-07 | 2020-04-07 | Power control system and automatic driving vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488675.6U CN211701607U (en) | 2020-04-07 | 2020-04-07 | Power control system and automatic driving vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701607U true CN211701607U (en) | 2020-10-16 |
Family
ID=72782334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020488675.6U Active CN211701607U (en) | 2020-04-07 | 2020-04-07 | Power control system and automatic driving vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211701607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327110A (en) * | 2020-04-07 | 2020-06-23 | 中汽数据(天津)有限公司 | Power control system and automatic driving vehicle |
-
2020
- 2020-04-07 CN CN202020488675.6U patent/CN211701607U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327110A (en) * | 2020-04-07 | 2020-06-23 | 中汽数据(天津)有限公司 | Power control system and automatic driving vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111327110A (en) | Power control system and automatic driving vehicle | |
| CN102785625B (en) | Vehicular electronic control unit | |
| US11303215B2 (en) | System and method for providing a constant power source | |
| CN108899957B (en) | Robot and power supply control circuit thereof | |
| CN109398267B (en) | Vehicle and vehicle-mounted multimedia power management system thereof | |
| KR102617933B1 (en) | Intelligent control system, emergency starting power supply, and intelligent battery clip | |
| CN211701607U (en) | Power control system and automatic driving vehicle | |
| CN112895924A (en) | Charging detection and wake-up circuit and battery management system | |
| JP2019022356A (en) | Voltage conversion unit | |
| JP4747933B2 (en) | Power supply device and vehicle equipped with the same | |
| CN211335606U (en) | Charging detection and wake-up circuit and battery management system | |
| EP4329137A1 (en) | Battery management circuit and battery apparatus | |
| CN103144542B (en) | A kind of automatic power off control system | |
| KR102569511B1 (en) | Electric Vehicle Spare Battery and Battery Pack | |
| US20230123807A1 (en) | Switched-mode power supply, electric vehicle battery system, and vehicle | |
| US20230170692A1 (en) | Power distribution system with redundancy to increase safety factor | |
| CN114189037B (en) | Power supply circuit for unmanned on duty track testing platform | |
| CN112706653A (en) | AC charging CC signal detection circuit with awakening function | |
| CN208731068U (en) | A kind of battery truck | |
| CN113644717A (en) | Starting connection device, starting power supply and starting method | |
| CN112910052A (en) | Automatic dormancy protection control device of lithium cell group | |
| CN221127522U (en) | Atmosphere lamp and electric vehicle | |
| CN210669624U (en) | Standby power supply management device and standby power supply system | |
| CN214822707U (en) | AC charging CC signal detection circuit with awakening function | |
| CN215576530U (en) | Electricity-saving box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230322 Address after: 300392 1st Floor, Building B, New City Center, No. 3, Wanhui Road, Zhongbei Town, Xiqing District, Tianjin Patentee after: Zhongqi Zhilian Technology Co.,Ltd. Address before: 12-17, block B1, new city center, No.3 Wanhui Road, Zhongbei Town, Xiqing District, Tianjin Patentee before: Sinotruk data (Tianjin) Co.,Ltd. |
|
| TR01 | Transfer of patent right |