CN111679618A - Intelligent control device for power supply of communication base station - Google Patents
Intelligent control device for power supply of communication base station Download PDFInfo
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- CN111679618A CN111679618A CN202010698332.7A CN202010698332A CN111679618A CN 111679618 A CN111679618 A CN 111679618A CN 202010698332 A CN202010698332 A CN 202010698332A CN 111679618 A CN111679618 A CN 111679618A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 14
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- 238000010295 mobile communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
- G05B19/0425—Safety, monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- Theoretical Computer Science (AREA)
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- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The intelligent control device for the power supply of the communication base station comprises a control unit, a base station terminal and a moving loop system, wherein the moving loop system is used for sending a control instruction to the control unit when the base station terminal is abnormal; the control unit is connected with an RS485 communication module, the base station terminal is connected with an interface chip, and the interface chip is used for converting an RS485 level signal into a TTL level signal; the control unit is in electrical communication connection with the base station terminal through the RS485 communication module, the interface chip and the bus; the control unit comprises a main control chip, an MOS tube is connected to the main control chip through an MOS tube driving circuit and an MOS tube protection circuit, the MOS tube protection circuit is used for protecting the MOS tube to work safely, the MOS tube driving circuit is used for controlling the working state of the MOS tube, and the MOS tube is used for controlling the power supply of the base station terminal so as to realize remote control of the power supply of the base station terminal; the main control chip is also connected with a switch power supply which is used for supplying power for the control unit.
Description
The technical field is as follows:
the invention relates to an intelligent control device for a communication base station power supply.
Background art:
the base station, i.e. public mobile communication base station, is an interface device for accessing the mobile device to the internet, and is a form of radio station, which is a radio transceiver station for information transmission between a mobile communication switching center and a mobile phone terminal in a certain radio coverage area; the construction of mobile communication base stations is an important part of the investment of mobile communication operators, and is generally carried out around the factors of coverage, call quality, investment benefit, difficult construction, convenient maintenance and the like. With the development of mobile communication network services toward datamation and packetization, the development trend of mobile communication base stations is also inevitably to make the mobile communication base stations broadband, large coverage area construction and IP.
The main function of the base station is to provide wireless coverage, i.e. to realize wireless signal transmission between the wired communication network and the wireless terminal; each base station may contain one or more sectors depending on the antenna situation to which it is connected. The coverage area of a base station sector may reach several hundred to several tens of kilometers. However, in a region with dense users, the coverage area is usually controlled, so that interference to adjacent base stations is avoided; the baseband and radio frequency processing capability of the base station determines that the physical structure of the base station consists of a baseband module and a radio frequency module. The baseband module mainly completes the functions of baseband modulation and demodulation, wireless resource allocation, call processing, power control, soft switching and the like. The radio frequency module mainly completes the conversion between the air radio frequency channel and the baseband digital channel, and the amplification, the receiving and the transmitting of the radio frequency channel, and the like.
At present, in order to save construction and maintenance cost, in the communication industry, each operator rents a base station of an iron tower company to supply power to equipment, and a plurality of operators are hooked on the same base station to supply power to the plurality of operators at the same time; because the power supply requirements of each operator are inconsistent, the base station cannot meet the diversified requirements of power supply, three sectors of the same operator cannot be supplied with power independently, and the three sectors can be supplied with power or powered off simultaneously; and the base station power supply does not have the remote control function, can not supply power or cut off power to the remote control of operator according to the concrete power consumption condition, also can not intelligent detection electric leakage or operator misconnection etc. abnormal conditions.
The invention content is as follows:
the embodiment of the invention provides an intelligent control device for a communication base station power supply, which has reasonable structural design, can be suitable for 4G/5G communication of operators such as mobile operators, telecom operators, Unicom operators and the like and various devices needing intelligent power supply, adopts an RS485 communication interface and a Modbus communication protocol to establish remote communication among an upper computer, a control unit and a communication base station, and remotely controls a base station terminal power supply through the control unit, thereby improving the diversified requirements of the base station power supply, being suitable for different operators, and simultaneously being provided with functions of overcurrent protection, overvoltage protection and lightning protection to prevent abnormal conditions; the intelligent base station has the advantages of simple and clear structure, low failure rate and convenience in installation and maintenance, can provide higher-quality and more intelligent service for operators and other base station terminals, and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the intelligent control device for the power supply of the communication base station comprises a control unit, a base station terminal and a moving loop system, wherein the moving loop system is used for sending a control instruction to the control unit when the base station terminal is abnormal; the control unit is connected with an RS485 communication module, the base station terminal is connected with an interface chip, and the interface chip is used for converting an RS485 level signal into a TTL level signal; the control unit is in electrical communication connection with the base station terminal through the RS485 communication module, the interface chip and the bus; the control unit comprises a main control chip, an MOS tube is connected to the main control chip through an MOS tube driving circuit and an MOS tube protection circuit, the MOS tube protection circuit is used for protecting the MOS tube to work safely, the MOS tube driving circuit is used for controlling the working state of the MOS tube, and the MOS tube is used for controlling the power supply of the base station terminal so as to realize remote control of the power supply of the base station terminal; the main control chip is also connected with a switch power supply which is used for supplying power for the control unit.
The moving ring system is an upper computer.
The model of the RS485 communication module is SP3485, and 8 pins are arranged on the RS485 communication module.
The type of the interface chip is MAX 485.
The model of main control chip is STM32F103, is equipped with 48 pins on the main control chip.
The MOS tube driving circuit comprises a photoelectric coupler connected with the main control chip, and a first pin of the photoelectric coupler is connected with the main control chip through a first resistor; the third pin and the fourth pin of the photoelectric coupler are connected with a first triode, the third pin of the photoelectric coupler is connected with a collector of the first triode, and the fourth pin of the photoelectric coupler is connected with a base of the first triode; the emitter of the first triode is connected with a second triode, the base of the second triode is connected with the fourth pin of the photoelectric coupler, and the collector of the second triode is connected with the fourth pin of the photoelectric coupler through a second resistor; and MOS tubes are connected to the emitting electrode of the first triode and the emitting electrode of the second triode through a third resistor.
The MOS tube protection circuit comprises a fifth resistor connected with the MOS tube, wherein a first capacitor and a sixth resistor which are connected in parallel are arranged on the fifth resistor, and the fifth resistor is connected with the main control chip.
The first triode is an NPN triode, the second triode is a PNP triode, and the MOS tube is an N-channel MOS tube.
A first inductor and a first diode are arranged on the MOS tube and the base station terminal; and a second capacitor and a fourth resistor which are connected in parallel are arranged on the first diode.
The control unit is also provided with a control panel, and the control panel is provided with a power switch, an equipment address, an RS485 interface and a working state indicator lamp.
By adopting the structure, the communication connection is established between the base station terminal and the control unit through the RS485 communication module and the interface chip, so that the upper computer sends a control instruction to the control unit when the base station terminal is abnormal, and the control unit receives the control instruction, executes logic operation, sends the instruction and executes corresponding action; the on-off of the two triodes is controlled by a photoelectric coupler on the MOS tube driving circuit, so that the working state of the MOS tube is controlled, the power supply of each base station terminal is controlled, and the remote control of the power supply of the base station terminal is realized; the MOS tube is used for protecting the safe work of the MOS tube, the current flowing through the MOS tube is monitored in real time, if the conditions such as overcurrent occur, signals are sent to the main control chip, after the signals are processed, the main control chip outputs control signals, and driving signals of the MOS tube are cut off, so that the safe work of the MOS tube is protected; the control panel on the control unit is used for actual connection and operation, corresponding working states can be observed, and the device has the advantages of being simple in structure, high in practicability and convenient to maintain.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a control unit according to the present invention.
Fig. 3 is an electrical schematic diagram of the main control chip of the present invention.
Fig. 4 is an electrical schematic of the 485 communication module of the present invention.
Fig. 5 is an electrical schematic diagram of a MOS transistor driving circuit and a MOS transistor protection circuit according to the present invention.
Fig. 6 is a schematic structural diagram of the control board of the present invention.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-6, an intelligent control device for a communication base station power supply comprises a control unit, a base station terminal and a moving loop system, wherein the moving loop system is used for sending a control instruction to the control unit when the base station terminal is abnormal; the control unit is connected with an RS485 communication module, the base station terminal is connected with an interface chip, and the interface chip is used for converting an RS485 level signal into a TTL level signal; the control unit is in electrical communication connection with the base station terminal through the RS485 communication module, the interface chip and the bus; the control unit comprises a main control chip, an MOS tube is connected to the main control chip through an MOS tube driving circuit and an MOS tube protection circuit, the MOS tube protection circuit is used for protecting the MOS tube to work safely, the MOS tube driving circuit is used for controlling the working state of the MOS tube, and the MOS tube is used for controlling the power supply of the base station terminal so as to realize remote control of the power supply of the base station terminal; the main control chip is also connected with a switch power supply which is used for supplying power for the control unit.
The moving ring system is an upper computer.
The model of the RS485 communication module is SP3485, and 8 pins are arranged on the RS485 communication module.
The type of the interface chip is MAX 485.
The model of main control chip is STM32F103, is equipped with 48 pins on the main control chip.
The MOS tube driving circuit comprises a photoelectric coupler connected with the main control chip, and a first pin of the photoelectric coupler is connected with the main control chip through a first resistor; the third pin and the fourth pin of the photoelectric coupler are connected with a first triode, the third pin of the photoelectric coupler is connected with a collector of the first triode, and the fourth pin of the photoelectric coupler is connected with a base of the first triode; the emitter of the first triode is connected with a second triode, the base of the second triode is connected with the fourth pin of the photoelectric coupler, and the collector of the second triode is connected with the fourth pin of the photoelectric coupler through a second resistor; and MOS tubes are connected to the emitting electrode of the first triode and the emitting electrode of the second triode through a third resistor.
The MOS tube protection circuit comprises a fifth resistor connected with the MOS tube, wherein a first capacitor and a sixth resistor which are connected in parallel are arranged on the fifth resistor, and the fifth resistor is connected with the main control chip.
The first triode is an NPN triode, the second triode is a PNP triode, and the MOS tube is an N-channel MOS tube.
A first inductor and a first diode are arranged on the MOS tube and the base station terminal; and a second capacitor and a fourth resistor which are connected in parallel are arranged on the first diode.
The control unit is also provided with a control panel, and the control panel is provided with a power switch, an equipment address, an RS485 interface and a working state indicator lamp.
The working principle of the intelligent control device for the power supply of the communication base station in the embodiment of the invention is as follows: based on an RS485 communication interface and a Modbus communication protocol, communication is established between the control unit and the base station terminal, data transmission is carried out, and when the base station runs abnormally, each base station terminal and the control unit work normally, do not communicate with each other and do not communicate with an upper computer; when the base station is abnormal, the upper computer conducts polling, the base station terminal with the abnormality is found out, the station address corresponding to the base station terminal is sent, the control unit is enabled to be communicated with the abnormal base station terminal, and remote control is conducted.
The intelligent control device for the power supply of the communication base station in the embodiment of the invention can meet the power supply requirements of different operators, so that the power supply of the base station terminal is more diversified; the remote control function of the power supply of the base station terminal is added, and power supply or power failure can be remotely controlled for corresponding operators according to specific power utilization conditions; the upper computer can also intelligently detect abnormal conditions such as electric leakage or operator misconnection.
Particularly, the control unit and the upper computer adopt remote communication, the communication distance can reach 1200m, and the application range is wide; the interface level is low, a chip connected with the control unit is not easy to damage, and the level can be well compatible with the TTL level, so that the communication with the main control chip is convenient; due to the adoption of a balanced differential transmission technology, the intelligent control device for the power supply of the communication base station can well inhibit common-mode interference; in addition, the invention is also provided with functions of overcurrent protection, overvoltage protection and lightning protection. The whole control device has simple and clear structure, low failure rate and convenient installation and maintenance, and can provide better and more intelligent service for operators and other terminals.
The control unit and the base station terminal are communicated through the RS485 module and the interface chip, when the base station terminal is in an abnormal state, the upper computer sends a control instruction, and after the control instruction passes through the base station terminal, the signal is changed into a 485 level signal; since the signal is a differential signal, the control unit cannot recognize the differential signal, and the level must be converted into a TTL level signal through the interface chip and the TTL level signal is transmitted to the main control chip.
The control unit comprises a main control chip, the main control chip is connected with an MOS tube through an MOS tube driving circuit and an MOS tube protection circuit, the MOS tube protection circuit is used for protecting the MOS tube to work safely, the MOS tube driving circuit is used for controlling the working state of the MOS tube, and the MOS tube is used for controlling the power supply of the base station terminal so as to realize remote control of the power supply of the base station terminal; the main control chip is also connected with a switch power supply which is used for supplying power for the control unit.
In the actual use process, when the base station terminal has no abnormal condition, each base station terminal and the control unit work normally, do not communicate with each other and do not communicate with the upper computer; when the abnormal condition appears, the master control chip receives TTL level signals, the MOS tube driving circuit and the MOS tube protection circuit simultaneously enter a working state, the on-off of the two triodes is controlled through the photoelectric coupler, and then the working state of the MOS tube is controlled, so that the power supply of each base station terminal is controlled, remote control is realized, and the stable normal operation of the power supply of the base station terminal is ensured.
The current flowing through the MOS tube is monitored in real time in the working process, when the overcurrent condition occurs, the main control chip outputs a control signal after the signal is processed, and the drive signal of the MOS tube is cut off so as to protect the safe work of the MOS tube.
In summary, the intelligent control device for the communication base station power supply in the embodiment of the invention adopts the RS485 communication interface and the Modbus communication protocol, so that remote communication is established among the upper computer, the control unit and the communication base station, and the device can be applied to 4G/5G communication of mobile, telecommunication and Unicom operators and various devices requiring intelligent power supply, and the control unit is used for remotely controlling the base station terminal power supply, thereby improving diversified requirements of the base station power supply, being applicable to different operators, and simultaneously having the functions of overcurrent protection, overvoltage protection and lightning protection, and preventing abnormal situations; the structure is simple and clear, the failure rate is low, the installation and the maintenance are convenient, and the system can provide higher-quality and more intelligent service for operators and other base station terminals.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (10)
1. The utility model provides a communication base station power intelligent control device which characterized in that: the system comprises a control unit, a base station terminal and a dynamic loop system, wherein the dynamic loop system is used for sending a control instruction to the control unit when the base station terminal is abnormal; the control unit is connected with an RS485 communication module, the base station terminal is connected with an interface chip, and the interface chip is used for converting an RS485 level signal into a TTL level signal; the control unit is in electrical communication connection with the base station terminal through the RS485 communication module, the interface chip and the bus; the control unit comprises a main control chip, an MOS tube is connected to the main control chip through an MOS tube driving circuit and an MOS tube protection circuit, the MOS tube protection circuit is used for protecting the MOS tube to work safely, the MOS tube driving circuit is used for controlling the working state of the MOS tube, and the MOS tube is used for controlling the power supply of the base station terminal so as to realize remote control of the power supply of the base station terminal; the main control chip is also connected with a switch power supply which is used for supplying power for the control unit.
2. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the moving ring system is an upper computer.
3. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the model of the RS485 communication module is SP3485, and 8 pins are arranged on the RS485 communication module.
4. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the type of the interface chip is MAX 485.
5. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the model of main control chip is STM32F103, is equipped with 48 pins on the main control chip.
6. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the MOS tube driving circuit comprises a photoelectric coupler connected with the main control chip, and a first pin of the photoelectric coupler is connected with the main control chip through a first resistor; the third pin and the fourth pin of the photoelectric coupler are connected with a first triode, the third pin of the photoelectric coupler is connected with a collector of the first triode, and the fourth pin of the photoelectric coupler is connected with a base of the first triode; the emitter of the first triode is connected with a second triode, the base of the second triode is connected with the fourth pin of the photoelectric coupler, and the collector of the second triode is connected with the fourth pin of the photoelectric coupler through a second resistor; and MOS tubes are connected to the emitting electrode of the first triode and the emitting electrode of the second triode through a third resistor.
7. The intelligent control device for the power supply of the communication base station as claimed in claim 6, wherein: the MOS tube protection circuit comprises a fifth resistor connected with the MOS tube, wherein a first capacitor and a sixth resistor which are connected in parallel are arranged on the fifth resistor, and the fifth resistor is connected with the main control chip.
8. The intelligent control device for the power supply of the communication base station as claimed in claim 6, wherein: the first triode is an NPN triode, the second triode is a PNP triode, and the MOS tube is an N-channel MOS tube.
9. The intelligent control device for the power supply of the communication base station as claimed in claim 6, wherein: a first inductor and a first diode are arranged on the MOS tube and the base station terminal; and a second capacitor and a fourth resistor which are connected in parallel are arranged on the first diode.
10. The intelligent control device for the power supply of the communication base station according to claim 1, characterized in that: the control unit is also provided with a control panel, and the control panel is provided with a power switch, an equipment address, an RS485 interface and a working state indicator lamp.
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| CN202010698332.7A CN111679618A (en) | 2020-07-20 | 2020-07-20 | Intelligent control device for power supply of communication base station |
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| CN202010698332.7A CN111679618A (en) | 2020-07-20 | 2020-07-20 | Intelligent control device for power supply of communication base station |
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