Safe charging and fire extinguishing system for electric bicycle

Abstract

The invention discloses an electric bicycle safe charging and fire extinguishing system, which comprises a client, a cloud platform, a main control unit, a special wire slot, a distributed charging terminal, a fire extinguishing agent steel cylinder and a fire extinguishing terminal, and is characterized in that the client further comprises a Web terminal management platform, a mobile management terminal and a mobile user terminal, and the mobile user terminal is used by a charging user. A code scanning charging function and a personal charging management function are provided; the mobile management terminal is used by a charging station administrator and provides functions including equipment operation and maintenance, fault reporting, personnel input and data statistics; the Web end management platform is used for providing equipment management, visualization service and data analysis service for an enterprise system administrator; the main control unit is electrically connected with the distributed charging terminals, corresponding electric connection cables are arranged in special wire ducts, and charging terminal mounting holes are formed in the special wire ducts; and the fire extinguishing terminal is mounted on the special wire slot mounting hole.

Description

Technical Field

[0001] The invention belongs to the technical field of electric bicycle charging, and in particular relates to a safe charging and fire extinguishing system for an electric bicycle. Background Art

[0002] With the popularity of electric bicycles, the charging safety requirements for electric bicycles are getting higher and higher.

[0003] Existing electric bicycles do not have charging terminals, only ordinary sockets, no precise location sensors, no display screens, and no intuitive display of faults at each socket point. There are no special cable troughs for laying charging cables. When parking spaces are set up against walls, ordinary cable troughs are used for wall burial or open installation. When parking spaces are set up in the air, various temporary measures are required to install sockets. The above non-standardized laying of charging cables requires certain damage to the original construction site, and other types of work (such as plastering) are required for restoration or repair in the later stage. Sometimes only non-flame retardant materials such as PVC are used, which does not meet relevant fire protection regulations.

[0004] When charging is needed, the current technical solutions often require scanning the code at a fixed location (such as a control cabinet) first, and then finding the corresponding socket. If the socket is not empty (such as charging is completed but the vehicle has not been moved), it is necessary to scan the code again or move the vehicle.

[0005] In the prior art, electric bicycle charging fire extinguishing systems often use the method of installing an external smoke alarm and fire extinguishing system on the ceiling, or installing an external single hanging fire extinguisher on the ceiling. The former needs to be connected to the fire protection system of the main building, which is not friendly to the renovation project. The physical distance from the original fire protection system, whether the original system has redundant interfaces, whether the pipe diameter meets the fire protection requirements, whether the pipeline laying involves overhead or buried, and whether the charging and parking area must have a roof, etc., make the actual operation unfeasible. Once triggered, the entire parking area will spray the fire extinguishing agent at the same time. Due to the problem of installation height, it is powerless to deal with the high temperature and smoldering of the battery before the fire. The latter multiple hanging fire extinguishers are not linked to each other, and the hanging fire extinguishers are not linked to the system temperature sensor and smoke sensor. The fire extinguishing agent spraying action is triggered by the temperature-sensitive glass bulb (generally 68°C). Due to the installation height (>2.0m) and the trigger mechanism, there must be an open flame and it must burn to a certain degree before the fire can be extinguished. However, it is powerless against high temperature, smoke or smoldering before the battery catches fire. Summary of the invention

[0006] In view of the above problems, the present invention provides an electric bicycle safe charging and fire extinguishing system, which is used for safety monitoring of the electric bicycle charging process and collection and analysis of charging data, early warning of unsafe factors generated during the charging process, alarm and extinguishing of fires that occur, and post-accident tracing.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] An electric bicycle safe charging and fire extinguishing system includes a client, a cloud platform, a main control unit, a dedicated wire slot, a distributed charging terminal, a fire extinguishing agent cylinder and a fire extinguishing terminal.

[0009] The client further includes a Web-side management platform, a mobile management terminal and a mobile user terminal. The mobile user terminal is used by charging users and provides functions including scanning code charging and personal charging management; the mobile management terminal is used by charging site administrators and provides functions including equipment operation and maintenance, fault reporting, personnel entry and data statistics; the Web-side management platform is used to provide enterprise system administrators with equipment management, visualization services and data analysis services;

[0010] The cloud platform uses a public cloud, including a device cloud and a business cloud; the device cloud is used to collect and manage device data and perform remote control; the business cloud is used to provide logic processing and business data storage services; the business cloud realizes interaction between the two through the API provided by the device cloud;

[0011] The main control unit is electrically connected to the distributed charging terminal, and the corresponding electrical connection cables are arranged in a dedicated wire trough, and the dedicated wire trough is provided with a charging terminal mounting hole for installing the distributed charging terminal and accommodating the electrical connection cables between the charging terminal and the main control unit;

[0012] The fire extinguishing terminal is installed on the special wire trough installation hole, the fire extinguishing agent cylinder and the fire extinguishing terminal are connected with the fire extinguishing agent delivery pipeline through a high-pressure resistant metal pipe, and the high-pressure resistant metal pipe is arranged in a special cavity of the special wire trough.

[0013] In a possible implementation, the distributed charging terminal includes a PCB board, a sensor group, a serial port display screen and a socket module, and the above components are all installed in a receiving cavity formed by a front shell and a rear shell.

[0014] In a possible implementation, the distributed charging terminal is fixedly installed in a charging terminal installation hole on a dedicated wire trough.

[0015] In a possible implementation, the main control unit further includes a power supply unit module, a control panel unit module, a fire alarm and extinguishing control module, a network communication module, a network device and an RFID split multi-channel reader / writer installed in the main control cabinet.

[0016] In one possible implementation, for charging an electric bicycle, the process is as follows: the bicycle that needs to be charged selects an idle charging terminal and plugs into the socket module, the sensor group set in the charging terminal receives a signal, the display screen of the charging terminal displays a QR code, the user scans the code to execute a charging request, and the charging terminal feeds back a control signal to the main control chip of the control board module through a network cable. The main control chip realizes the on-off control of the socket module of the charging terminal through the relay on the control board module.

[0017] In a possible implementation, it further includes: the charging detection module on the control board module monitors data including current, voltage, power and temperature in real time during the charging process, and the sensor on the PCB board of the charging terminal also collects relevant data in real time, and these data are transmitted to the main control chip on the control board module, and the data is uploaded to the cloud platform through the network communication module; the main program on the cloud platform makes judgments on the status including current, voltage, power, temperature, smoke, harmful gases and humidity according to the set thresholds, and the main control chip receives the instructions sent by the cloud platform through the network communication module and takes corresponding actions.

[0018] In one possible implementation, the thresholds of various parameters are set intelligently, and the process is as follows: the charging data, including current, voltage, power and temperature, are collected through the main control chip of the control board unit module and the sensor of the charging terminal. The main program calculates the effective average value of the previous sequence in real time as the benchmark value, sets the coefficient K, and the benchmark value is multiplied by K to form the threshold of this type of data.

[0019] In a possible implementation, it further includes fire extinguishing, and the process is as follows: if a situation occurs that is higher than a threshold, the system automatically cuts off the strong power of the corresponding charging terminal, the fire extinguishing agent container valve opens, and the warning information is pushed to the user and administrator.

[0020] In a possible implementation, it further includes: if the temperature continues to rise, no open flame appears, or smoke appears, the smoke sensor transmits a signal back to the system, the sound and light alarm is activated, the fire extinguishing system start valve is opened, the selection valve of the corresponding pipeline is opened, and the fire extinguishing agent is sprayed in the gaps between electric vehicles in the corresponding area to cool down; if the temperature continues to rise and an open flame appears, the selection valve of the adjacent pipeline is opened to extinguish the fire.

[0021] In a possible implementation, it further includes: combining a dual-spectrum thermal imaging camera to identify whether there is still an open flame. If there is no open flame and the temperature drops to a safe value, closing the selector valve to stop spraying the fire extinguishing agent; once the temperature rises and re-ignition occurs, opening the selector valve again to spray the fire extinguishing agent to extinguish the fire; during the entire process, the sensors and the dual-spectrum thermal imaging camera continue to work.

[0022] The present invention has the following beneficial effects:

[0023] (1) By using distributed sockets and dedicated cable ducts, the wiring specifications are met and the problem of metal fire protection can be solved. The distributed charging terminals set up above allow charging to exist independently in an open space, and even do not require a roof. If site renovation is involved, it can be carried out without destroying the original building or decoration, without excavation, and eliminating subsequent repair work, no plastering or painting is required.

[0024] (2) By setting up the charging operation at the charging terminal, the situation in the prior art where scanning charging is performed on the main control cabinet and the control cabinet displays an empty space while the actual parking space is occupied is avoided.

[0025] (3) Fireworks are identified by dual-spectrum thermal imaging cameras. If it is not a false alarm, the external emergency stop reset button can be used to cut off the power. This avoids the waste of resources caused by false alarms of sensors under special circumstances, and also avoids the increase of losses when the previous measures fail due to the alarm.

[0026] (4) By intelligently setting the thresholds of various parameters, the operation process of the electric bicycle safe charging and fire extinguishing system is made safer and more reliable.

[0027] (5) The fire extinguishing system is an independent set with no requirements for the site and can be installed outdoors. The fire extinguishing system is linked to the various sensors in the system. For a single socket that exceeds the threshold, the high-voltage power supply is first cut off, but the weak-voltage system is not cut off. The various sensors and dual-spectrum thermal imaging cameras continue to monitor and push alarm information to administrators and users. If the temperature continues to rise, the fire extinguishing system is activated, the pipeline selection valve is opened, the sound and light alarm is activated, and the fire extinguishing agent is used to cool down the point. If the temperature continues to rise and an open flame is generated, the adjacent pipeline selection valve is opened at the same time, and the fire extinguishing agent is sprayed for fire extinguishing. When the temperature drops to a safe value, the spraying of the fire extinguishing agent is stopped. Once the temperature rises again, the fire extinguishing agent is sprayed again to cool down and prevent the battery from smoldering. During the whole process, the sensors and dual-spectrum thermal imaging cameras continue to work, with good fire extinguishing effect and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a principle block diagram of a safe charging and fire extinguishing system for an electric bicycle according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a safe charging and fire extinguishing system for an electric bicycle according to a specific application example of the present invention;

[0030] Figure 3 A schematic diagram of the structure of a charging terminal and a fire extinguishing terminal in a safe charging and fire extinguishing system for an electric bicycle according to a specific application example of the present invention;

[0031] Figure 4This is a structural schematic diagram of a main control unit and a fire extinguishing agent cylinder installed in a cabinet in an electric bicycle safety charging and fire extinguishing system according to a specific application example of the present invention.

[0032] Figure 5 This is a schematic diagram of an RFID anti-metal and high temperature resistant sensor mounted on an electric bicycle in an electric bicycle safe charging and fire extinguishing system according to a specific application example of the present invention.

[0033] Description of reference numerals: client 10; cloud platform 20; main control unit 30; distributed charging terminal 40; emergency stop reset button 50; dual-spectrum thermal imaging camera 60; advertising machine 70; dedicated wire trough 80; fire extinguishing agent cylinder 90; RFID anti-metal high temperature sensor 100; fire extinguishing terminal 110; body 111; housing 112; nozzle 113; Web-end management platform 101; mobile management terminal 102; mobile user terminal 103; control panel module 301; network communication module 302; network device 303; power supply module 304; fire alarm and fire extinguishing control module 305; RFID split multi-channel reader 306; rear shell 401; PCB board 402; display screen 403; front shell 404; socket module 405; sensor group 406; charging terminal installation hole 801; network cable 802; fire extinguishing terminal installation hole 803; container valve 901; start valve 902; selection valve 903; metal pressure-resistant main pipe 904; tee 905; metal pressure-resistant branch pipe 906; high-pressure resistant metal hose 907. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figures 1 to 5The electric bicycle safe charging and fire extinguishing system of one embodiment of the present invention includes a client 10, a cloud platform 20, a main control unit 30, a dedicated cable trough 80, a distributed charging terminal 40, a fire extinguishing agent cylinder 90 and a fire extinguishing terminal 110; wherein the client 10 further includes a Web-end management platform 101, a mobile management terminal 102 and a mobile user terminal 103, the mobile user terminal 103 is used by charging users, and provides functions including scanning code charging and personal charging management; the mobile management terminal 102 is used by charging site administrators, and provides functions including equipment operation and maintenance, fault reporting, personnel entry and data statistics; the Web-end management platform 101 is used to provide enterprise system administrators with equipment management, visualization services and data analysis services; the cloud platform 20 uses a public cloud, including a device cloud and a business cloud; the device cloud is used to collect and manage device data for remote control; the business cloud is used to provide logic processing and business data storage services; the business cloud realizes interaction between the two through the API provided by the device cloud. The main control unit 30 and the distributed charging terminal 40 are electrically connected, and the corresponding electrical connection cables are arranged in a dedicated wire trough 80. A charging terminal mounting hole is provided on the dedicated wire trough 80 for installing the distributed charging terminal 40 and accommodating the electrical connection cables between the charging terminal and the main control unit. The fire extinguishing terminal 110 is installed on the fire extinguishing terminal mounting hole 809 of the dedicated wire trough. The fire extinguishing agent cylinder 90 and the fire extinguishing terminal 110 are connected to the fire extinguishing agent delivery pipeline through a high-pressure resistant metal pipe. The high-pressure resistant metal pipe 110 is arranged in a dedicated cavity of the dedicated wire trough.

[0036] Continue to see Figure 1 The electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention further includes a dual-spectrum thermal imaging camera 60 for identifying fireworks. It may also further include an emergency stop reset button 50 for powering off external devices with one click through an externally set emergency stop reset button.

[0037] Continue to see Figure 1 The electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention may further include an advertising machine 70 for local data display, notices, notifications and advertising. The advertising machine 70 may be set on the facade of the cabinet 310 of the main control unit. The local data refers to local related data information, which can also be presented on the advertising machine through background settings.

[0038] Continue to see Figure 3In another embodiment of the electric bicycle safe charging and fire extinguishing system of the present invention, the distributed charging terminal further includes a PCB board 402, a sensor group 406, a display screen 403 and a socket module 405, and the above components are installed in the accommodating cavity formed by the front shell 404 and the rear shell 401. The above distributed charging terminal is fixedly installed in the charging terminal installation hole 801 on the dedicated wire slot through the front shell 404 and the rear shell 401.

[0039] Continue to see Figure 3 In another embodiment of the electric bicycle safe charging and fire extinguishing system of the present invention, the main control unit 30 further includes a control panel module 301 installed in the main control cabinet, a network communication module 302, a network device 303, a power supply module 304, a fire alarm and extinguishing control module 305, and an RFID split multi-channel reader 306.

[0040] Continue to see Figure 2 and Figure 3 In another embodiment of the electric bicycle safe charging and fire extinguishing system of the present invention, the fire extinguishing terminal 110 includes an assembled body 111, a shell 112 and a nozzle 113, and the body 111 is fixedly installed in the fire extinguishing terminal installation hole 803 of the dedicated wire trough. The nozzle 113 can be replaced according to different fire extinguishing agents.

[0041] Continue to see Figure 5 , the electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention further includes an RFID anti-metal and high temperature resistant sensor 100, which is used to be attached to the battery casing of the electric bicycle. The accurate battery temperature can be obtained in real time for analysis by the main program through the RFID antenna group and the RFID split multi-channel reader / writer. The RFID anti-metal and high temperature resistant sensor is the transmitting end of the signal, the RFID antenna group is the receiving end of the signal, and the RFID split multi-channel reader / writer is the processing end of the signal. The use of the anti-metal and high temperature resistant RFID anti-metal and high temperature resistant sensor can continuously measure the temperature even when a fire occurs, and report to the cloud platform.

[0042] The electric bicycle safe charging and fire extinguishing system set up as above can be used to charge electric bicycles. The charging process is as follows: the bicycle that needs to be charged selects an idle charging terminal 40 and plugs into the socket module 405. The sensor group 406 set in the charging terminal receives the signal, and the serial port display screen 403 of the charging terminal displays a QR code. The user scans the code to execute the charging request. The charging terminal feeds back the control signal to the main control chip of the control board module 301 through the network cable 808. The main control chip realizes the on-off control of the socket module 405 of the charging terminal through the relay on the control board module 301.

[0043] The electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention further includes: the charging detection module on the control board module 301 monitors the data including current, voltage, power and temperature in real time during the charging process, and the sensor group on the PCB board of the charging terminal 401 also collects relevant data in real time, and these data are transmitted to the main control chip on the control board module, and the data is uploaded to the cloud platform through the network communication module; the main program on the cloud platform makes judgments on the status including current, voltage, power, temperature, smoke, harmful gases and humidity according to the set threshold value, and the main control chip receives the instructions sent by the cloud platform through the network communication module and takes corresponding actions. At the same time, the main program pushes the relevant information to the user and administrator.

[0044] In the electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention, the thresholds of various parameters can be set intelligently, and the process is as follows: the charging data, including current, voltage, power and temperature, are collected through the main control chip of the control board unit module and the sensor of the charging terminal. The main program calculates the effective average value of the existing predecessor in real time as the reference value, sets the coefficient K (such as 110%), and the reference value is multiplied by K to form the threshold of this type of data. If this type of value exceeds the threshold later, the system will alarm and push the alarm information to the user and administrator for intervention. Accidents can be prevented from happening at the first time. The K value may be different for different data types, but the threshold after multiplying by the K value cannot exceed the specification and material melting point requirements.

[0045] Furthermore, in the electric bicycle safe charging and fire extinguishing system, the main control chip on the control panel unit module can be set with overcurrent, overvoltage, overload, overtemperature and other protection functions, and can automatically cut off the power. The power supply unit module can be equipped with air switches, leakage protection, surge protection, etc., which can automatically cut off the power in the case of overcurrent, overload, short circuit, leakage, lightning strike, etc. Through the above settings, multiple insurances such as software power off, circuit power off, and manual power off can ensure that the power can be cut off in the first time in various situations to ensure safety.

[0046] Furthermore, in the electric bicycle safe charging and fire extinguishing system, the network equipment in the main control unit has intelligent analysis functions, and as edge computing hardware, it collaborates with the cloud platform, such as feature recognition, feature retrieval, human-machine non-recognition, crowd statistics, regional density, perimeter protection, etc. Edge computing provides lightweight processing of small-scale local data, small data storage, real-time control and rapid decision-making, etc. Cloud computing provides large-scale data analysis, big data storage, deep learning training and distributed cloud node management.

[0047] Furthermore, in the electric bicycle safe charging and fire extinguishing system, a thermistor can be set in the control panel unit to measure the temperature of the charging line, and the charging terminal can be provided with an infrared array temperature sensor to measure the ambient temperature, the vehicle's external temperature, etc. Combined with the real-time temperature data of the network, accurate temperature statistics and analysis can be performed for each vehicle. This can provide good monitoring for fixed charging users and prevent the risk of fire caused by high temperature caused by charging.

[0048] Furthermore, the fire extinguishing process of the electric bicycle safe charging and fire extinguishing system of another embodiment of the present invention is as follows: if the temperature exceeds the threshold, the system automatically cuts off the strong power of the corresponding charging terminal, the fire extinguishing agent container valve opens, and the warning information is pushed to the user and administrator. If the temperature continues to rise, there is no open fire, or smoke appears, the smoke sensor will send a signal back to the system, the sound and light alarm will be activated, the fire extinguishing system start valve will be opened, the selection valve of the corresponding pipeline will be opened, and the fire extinguishing agent will be sprayed to cool the gap between the electric vehicles in the corresponding area. If the temperature continues to rise and an open fire appears (the dual-spectrum thermal imaging camera can identify fireworks), the selection valve of the adjacent pipeline will be opened for fire extinguishing. Combined with the dual-spectrum thermal imaging camera to identify whether there is still an open fire, if there is no open fire and the temperature drops to a safe value, the selection valve is closed to stop spraying the fire extinguishing agent; once the temperature rises and re-ignition occurs, the selection valve is opened again to spray the fire extinguishing agent for fire extinguishing; the sensors and the dual-spectrum thermal imaging camera continue to work during the whole process. The threshold here can be the temperature of the battery shell. During operation, the temperature threshold of each sensor is monitored. For example, the thermistor on the control board measures the circuit temperature, the infrared array temperature sensor on the terminal measures the ambient and vehicle external temperature, and the RFID anti-metal and high-temperature resistant sensor measures the battery casing temperature. Several temperature values ​​are interrelated.

[0049] For specific application examples, see Figure 4 , the fire extinguishing control of the fire extinguisher cylinder and the multi-way fire extinguishing terminal is controlled separately by route. The fire extinguisher cylinder with a container valve 901 is connected to a metal pressure-resistant main pipe 904 with a start valve 902, and then through a tee 905 and other pipe fittings, it is connected to a metal pressure-resistant branch pipe 906 with a selection valve 903 to a high-pressure metal soft hose 907 and then connected to the corresponding fire extinguishing terminal 110. After exceeding the threshold, the container valve 901 is opened, and the temperature rises again to open the start valve 902, and the temperature rises again to open the selection valve 903 of the corresponding branch pipe. The above settings make it unnecessary for all pipelines to be in a high-pressure state for a long time, and it is also unnecessary to open all fire extinguishing terminals at the same time. Fire extinguishing agent is sprayed only on specific ports and opened on demand, saving fire extinguishing agent and avoiding collateral losses of electric vehicles where no fire occurs.

[0050] The above-mentioned electric bicycle safe charging and fire extinguishing system can realize two functions: one is cooling, and the other is fire extinguishing. According to statistics, 80% of electric bicycle fires occur during charging, and the direct cause of the fire is battery thermal runaway or line failure. Accidents such as line aging and charging short circuits produce sparks with a flame temperature of 130°C. An open flame occurs in an electric bicycle with a flame temperature of 310°C and a large amount of toxic smoke. The plastic parts of the electric bicycle are ignited with a flame temperature of 680°C. Therefore, the above-mentioned cooling and fire extinguishing synchronization system greatly improves the safety of the bicycle charging system.

[0051] It should be understood that the exemplary embodiments described herein are illustrative rather than restrictive. Although one or more embodiments of the present invention have been described in conjunction with the accompanying drawings, it should be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. An electric bicycle safe charging and fire extinguishing system, characterized in that: It includes client, cloud platform, main control unit, dedicated cable duct, distributed charging terminal, fire extinguishing agent cylinder and fire extinguishing terminal. The client further includes a Web-side management platform, a mobile management terminal and a mobile user terminal. The mobile user terminal is used by charging users and provides functions including scanning code charging and personal charging management; the mobile management terminal is used by charging site administrators and provides functions including equipment operation and maintenance, fault reporting, personnel entry and data statistics; the Web-side management platform is used to provide enterprise system administrators with equipment management, visualization services and data analysis services; The cloud platform uses a public cloud, including a device cloud and a business cloud; the device cloud is used to collect and manage device data and perform remote control; the business cloud is used to provide logic processing and business data storage services; The business cloud implements the interaction between the two through the API provided by the device cloud; The main control unit is electrically connected to the distributed charging terminal, and the corresponding electrical connection cables are arranged in a dedicated wire trough, and the dedicated wire trough is provided with a charging terminal mounting hole for installing the distributed charging terminal and accommodating the electrical connection cables between the charging terminal and the main control unit; The fire extinguishing terminal is installed on the installation hole of the special wire trough, the fire extinguishing agent cylinder and the fire extinguishing terminal are connected through a high-pressure resistant metal pipe, and the high-pressure resistant metal pipe is arranged in a special cavity of the special wire trough.

2. The electric bicycle safe charging and fire extinguishing system according to claim 1, characterized in that: The distributed charging terminal includes a PCB board, a sensor group, a display screen and a socket module, and the above components are all installed in a receiving cavity formed by a front shell and a rear shell.

3. The electric bicycle safe charging and fire extinguishing system as claimed in claim 2, characterized in that: The distributed charging terminal is fixedly installed in a charging terminal installation hole on the dedicated wire trough.

4. The electric bicycle safe charging and fire extinguishing system as described in claim 1, wherein the main control unit further includes a power supply unit module, a control panel unit module, a fire alarm and extinguishing control module, a network communication module, a network device and an RFID split multi-channel reader / writer installed in the main control cabinet.

5. The electric bicycle safe charging and fire extinguishing system as claimed in claim 4, characterized in that: It is used to charge electric bicycles. The process is as follows: the bicycle that needs to be charged selects an idle charging terminal and plugs it into the socket module. The sensor group set in the charging terminal receives the signal, and the display screen of the charging terminal displays a QR code. The user scans the code to execute the charging request. The charging terminal feeds back the control signal to the main control chip of the control board module through the network cable. The main control chip realizes the on-off control of the socket module of the charging terminal through the relay on the control board module.

6. The electric bicycle safe charging and fire extinguishing system as claimed in claim 5, characterized in that: Further including: The charging detection module on the control board module monitors the data including current, voltage, power and temperature in real time during the charging process. At the same time, the sensors on the PCB board of the charging terminal also collect relevant data in real time. These data are transmitted to the main control chip on the control board module, and the data is uploaded to the cloud platform through the network communication module; the main program on the cloud platform makes judgments on the status including current, voltage, power, temperature, smoke, harmful gases and humidity according to the set thresholds, and the main control chip receives the instructions sent by the cloud platform through the network communication module and takes corresponding actions.

7. The electric bicycle safety charging and fire extinguishing system according to claim 6, characterized in that: The thresholds of various parameters are set intelligently. The process is as follows: Charging data, including current, voltage, power and temperature, are collected through the main control chip of the control board unit module and the sensor of the charging terminal. The main program calculates the effective average value of the previous sequence in real time as the benchmark value, sets the coefficient K, and the benchmark value is multiplied by K to form the threshold of this type of data.

8. The electric bicycle safe charging and fire extinguishing system as claimed in claim 9, characterized in that: It further includes fire extinguishing, and the process is as follows: if a situation occurs that is higher than the threshold, the system automatically cuts off the strong power of the corresponding charging terminal, the fire extinguishing agent container valve opens, and the warning information is pushed to the user and administrator.

9. The electric bicycle safety charging and fire extinguishing system as claimed in claim 8, characterized in that: Further including: If the temperature continues to rise and no open flame appears, or smoke appears, the smoke sensor will send a signal back to the control unit module, the sound and light alarm will be activated, the fire extinguishing system start valve will open, the selection valve of the corresponding pipeline will open, and the fire extinguishing agent will be sprayed in the gaps between electric vehicles in the corresponding area to cool down; if the temperature continues to rise and an open flame appears, the selection valve of the adjacent pipeline will open to extinguish the fire.

10. The electric bicycle safe charging and fire extinguishing system according to claim 9, characterized in that: Further including: Combined with the dual-spectrum thermal imaging camera, it is identified whether there is still an open flame. If there is no open flame and the temperature drops to a safe value, the selection valve is closed to stop spraying the fire extinguishing agent. At this time, the container valve and the starting valve are in the open state; once the temperature rises and re-ignition occurs, the selection valve is opened again to spray the fire extinguishing agent to extinguish the fire; during the whole process, the sensors and dual-spectrum thermal imaging cameras continue to work.

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