CN216411942U - Fill electric pile's fault analysis device - Google Patents

Abstract

A failure analysis device of a charging pile, comprising: the acquisition module comprises a plurality of bus interfaces, and the bus interfaces are used for being connected with the charging pile so as to acquire historical data between the charging pile and a vehicle-mounted battery management system; the fault analysis module comprises a controller and a first memory connected with the controller, the first memory is used for storing a fault code comparison table, and the controller is connected with the acquisition module; the controller is configured to read the historical data and the fault code comparison table, and compare the historical data and the fault code comparison table to determine a specific fault. Use this embodiment can be fast, the automatic fault analysis work of accomplishing, find the trouble reason, improve and fill electric pile maintenance efficiency.

Description

Fill electric pile's fault analysis device

Technical Field

The application belongs to the technical field of fault analysis devices, and particularly relates to a fault analysis device for a charging pile.

Background

At present, with the popularization of new energy vehicles, the number of installed charging piles for vehicles which are charged in a matched mode is also increasing continuously. Fill electric pile and generally install in outdoor parking area, because the place environment dust that charges, the device life-span, the partial hardware damage of the electric pile that fills that causes of factors such as the personnel misoperation that charges needs to be changed, or because the agreement of some masses brand new energy car is compatible inadequately, the fault problem that the electric pile that fills that factors such as firmware upgrading lead to can not charge for the car, all need to fill electric pile operation factory technical staff to carry out the location analysis and the solution of the fault problem that charges to the scene, however, to the location analysis of the fault problem that charges, technical staff need take computer and a big pile and grab a package instrument usually, through artifical retrieval fault code, the analysis fault takes place modes such as node and just can analyze the location and fill electric pile fault reason, it is big to lead to the instrument total volume that technical staff need to carry, the gross weight is big, and fault analysis's work efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a fill electric pile's failure analysis device, aim at solving traditional many, the inconvenient problem of equipment carrying of user equipment that fills electric pile fault detection and exist.

The embodiment of the application provides a fill electric pile's failure analysis device, includes: the acquisition module comprises a plurality of bus interfaces, and the bus interfaces are used for being connected with the charging pile so as to acquire historical data between the charging pile and a vehicle-mounted battery management system; the fault analysis module comprises a controller and a first memory connected with the controller, the first memory is used for storing a fault code comparison table, and the controller is connected with the acquisition module; the controller is configured to read the historical data and the fault code comparison table, and compare the historical data and the fault code comparison table to determine a specific fault.

In one embodiment, the acquisition module comprises a communication data acquisition module and a charging pile data acquisition module; the communication data acquisition module comprises a communication data bus interface which is used for being connected with a corresponding data bus of the charging pile so as to acquire a communication message transmitted between the charging pile and the vehicle-mounted battery management system; the charging pile data acquisition module comprises a charging pile data bus interface, and the charging pile data bus interface is used for being connected with a corresponding data bus of the charging pile so as to acquire an equipment operation log of the charging pile and a network message transmitted between the charging pile and a server; the historical data includes the communication packet, the device operation log, and the network packet.

In one embodiment, the fault analysis module further comprises a second memory connected to the controller; the second memory is used for storing system configuration parameters of the fault analysis device.

In one embodiment, the system configuration parameters include analysis mode configuration parameters of the fault analysis module, and the analysis modes include a primary analysis mode, a middle-level analysis mode and a high-level analysis mode, in which the running time is sequentially increased and the fault analysis capability is sequentially enhanced; the fault analysis device further comprises a dial switch, and the dial switch is connected with the fault analysis module and used for enabling the fault analysis module to work in the corresponding analysis mode according to the dial state of the dial switch and the analysis mode configuration parameters.

In one embodiment, the second memory is a removable flash memory, so as to modify the fault comparison table.

In one embodiment, the communication data bus interface is a CAN bus interface, the communication data acquisition module further includes a first level shift circuit, one end of the first level shift circuit is connected to the communication data bus interface through a first signal isolation circuit, and the other end of the first level shift circuit is connected to the controller.

In one embodiment, the charging pile data bus interface is an RS232 bus interface, the charging pile data acquisition module further includes a second level shift circuit, one end of the second level shift circuit is connected to the charging pile data bus interface through a second signal isolation circuit, and the other end of the second level shift circuit is connected to the controller.

In one embodiment, the portable electronic device further comprises a key input module, and the key input module is connected with the controller and used for inputting an operation instruction.

In one embodiment, the fault analysis device further comprises a display module, the display module comprises a display screen, and a driving circuit and a control circuit which are both connected with the display screen, the driving circuit and the control circuit are also both connected with the controller, and the display module is used for displaying the working information of the fault analysis device.

In one embodiment, the power supply module further comprises a power supply module, the power supply module comprises a power supply management circuit, a rechargeable battery and a charging interface, the rechargeable battery and the charging interface are both connected with the power supply management circuit, and the power supply management circuit can perform voltage conversion to generate working voltage so as to supply power to the acquisition module and the fault analysis module.

In one embodiment, the rechargeable battery further comprises a quick prompt module connected with the controller, the quick prompt module comprises a status indicator lamp and a buzzer, the status indicator lamp is used for prompting the residual capacity condition and the charging condition of the rechargeable battery, and the buzzer is used for giving a prompt sound.

Compared with the prior art, the embodiment of the application has the advantages that: through the historical data that foretell collection module gathered, the controller can be according to historical data and fault code look-up table quick determination fill electric pile's fault reason. Use this embodiment portable, can make the staff need not to carry other instruments, can be fast, the automatic failure analysis work of accomplishing, find the trouble reason, improve and fill electric pile maintenance efficiency.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present application;

FIG. 2 is a schematic structural diagram provided in accordance with a first embodiment of the present application;

FIG. 3 is a schematic diagram of a power supply provided by a first embodiment of the present application;

FIG. 4 is a schematic diagram of a power circuit according to a first embodiment of the present application;

fig. 5 is a schematic structural diagram provided in a second embodiment of the present application.

The above figures illustrate: 100. an acquisition module; 110. a communication data acquisition module; 111. a communication data bus interface; 112. a first signal isolation circuit; 113. a first level shift circuit; 120. a charging pile data acquisition module; 121. a charging pile data bus interface; 122. a second signal isolation circuit; 123. a second level shift circuit; 300. a fault analysis module; 310. a controller; 320. a first memory; 330. a second memory; 400. a dial switch; 500. a key input module; 600. a display module; 610. a display screen; 620. a drive circuit; 630. a control circuit; 700. a power supply module; 710. a power management circuit; 720. a rechargeable battery; 730. a charging interface; 800. a fast prompt module; 810. a status indicator light; 820. a buzzer; 830. a drive control circuit.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Fig. 1 shows a schematic structural diagram of a fault analysis device for a charging pile according to a first embodiment of the present application, and for convenience of description, only the parts related to this embodiment are shown, and detailed descriptions are as follows:

a failure analysis device of a charging pile, comprising: an acquisition module 100 and a fault analysis module 300.

The acquisition module 100 comprises a plurality of bus interfaces, and the bus interfaces are used for being connected with the charging piles so as to acquire historical data between the charging piles and the vehicle-mounted battery management system; the fault analysis module 300 comprises a controller 310 and a first memory 320 connected with the controller 310, wherein the first memory 320 is used for storing a fault code comparison table, and the controller 310 is connected with the acquisition module 100; the controller 310 is configured to read the historical data and the fault code look-up table and compare the historical data with the fault code look-up table to determine a specific fault.

The specific fault reason of the abnormal part in the historical data can be quickly found out by comparing the fault code comparison table in the first memory 320.

The acquisition module 100 comprises a communication data acquisition module 110 and a charging pile data acquisition module 120; the communication data acquisition module 110 comprises a communication data bus interface 111, wherein the communication data bus interface 111 is used for being connected with a corresponding data bus of the charging pile so as to acquire a communication message transmitted between the charging pile and the vehicle-mounted battery management system; collecting communication messages for determining fault time nodes; the charging pile data acquisition module 120 comprises a charging pile data bus interface 121, and the charging pile data bus interface 121 is used for being connected with a corresponding data bus of a charging pile so as to acquire an equipment operation log of the charging pile and a network message transmitted between the charging pile and a server; collecting network messages to obtain fault codes, and collecting equipment operation logs to accurately determine fault reasons; the historical data includes communication messages, device operation logs and network messages.

In this embodiment, the controller 310 may be a single chip Microcomputer (MCU), the controller 310 has a built-in storage Unit, the built-in storage Unit is used for storing the fault analysis system, and the controller 310 is used for invoking the fault analysis system to analyze the historical data in combination with the fault code comparison table to obtain a fault analysis result; specifically, the controller 310 may collect a fault code in the network message, where the fault code is used to determine all possible fault causes by combining with the fault code comparison table, and the controller 310 may determine a specific fault cause from all possible fault causes by combining with the device operation log and the fault time node. The fault analysis system can be a Linux system provided with corresponding fault analysis software.

In another embodiment, the fault analysis system is a FreeRTOS system that is loaded with fault analysis software.

It should be noted that the whole process of charging the vehicle by the charging pile includes a handshake connection, an equipment identification, a charging parameter configuration, a charging process, and a charging end process, and the faults occurring in the charging pile in these processes generally include three faults: the communication fault between the charging pile and the electric vehicle, the network communication fault transmitted between the charging pile and the management system server and the equipment operation fault of the charging pile, when a certain part of the charging pile breaks down, a chain reaction can be caused, so that various fault codes can appear in a network message, the controller 310 can analyze the fault codes appearing by combining a fault code comparison table to obtain a plurality of possible fault reasons, in order to improve the accuracy of fault analysis, a time node of interruption of an automobile charging process is determined by a communication message during fault analysis, the time node is a fault time node of the fault, and the controller 310 can more accurately determine a specific fault reason by combining an equipment operation log and the fault time node.

In this embodiment, the second memory 330 is a removable flash memory, and the second memory 330 may be an SD card, a usb disk, or the like, so that the second memory 330 is taken off from the fault analysis apparatus and placed in another intelligent device to quickly modify the fault comparison table. It is also possible to rapidly exchange the fault lookup table participating in the fault analysis by exchanging the second memory 330 in which a different fault lookup table is installed. The fault comparison table comprises a plurality of fault codes and fault cause comments corresponding to each fault code.

In this embodiment, the fault analysis module 300 further includes a second memory 330 connected to the controller 310; the second memory 330 is used for storing system configuration parameters of a fault analysis system of the fault analysis apparatus, and the system configuration parameters are used for configuring the fault analysis system; the system configuration parameters comprise a custom word stock, screen brightness configuration information, silent mode configuration information and the like.

The second Memory 330 may be a Read-Only Memory (ROM), and further, the second Memory 330 may be a charged Erasable Programmable Read-Only Memory (EEPROM).

In this embodiment, the communication data bus interface 111 is a CAN bus interface, the communication data acquisition module 110 further includes a first level conversion circuit 113, the first level conversion circuit 113 includes a CAN level conversion chip, one end of the first level conversion circuit 113 is connected to the communication data bus interface 111 through the first signal isolation circuit 112, and the other end of the first level conversion circuit 113 is connected to the controller 310. Fill electric pile data bus interface 121 and be RS232 bus interface, fill electric pile data acquisition module 120 and still include second level shift circuit 123, and second level shift circuit 123 includes RS232 level shift chip, and second level shift circuit 123's one end is connected with filling electric pile data bus interface 121 through second signal isolation circuit 122, and the other end and the controller 310 of second level shift circuit 123 are connected.

The controller 310 of this embodiment embeds there are CAN drive and RS232 drive, the mode through external first level shift circuit 113 and second level shift circuit 123 CAN realize communication data bus interface 111, fill electric pile data bus interface 121 direct with fill the CAN bus of electric pile, RS232 bus butt joint, make controller 310 CAN the self-adaptation fill the baud rate of electric pile bus, compare more nimble with the current connected mode of connecting CAN communication module or RS232 communication module, CAN adapt to the electric pile that fills of different models.

In this embodiment, the fault analysis system further includes a key input module 500, and the key input module 500 is connected to the controller 310 for collecting an operation instruction of a user to implement control and parameter input of the fault analysis system.

In this embodiment, the display module 600 further includes a display module 600, the display module 600 includes a display screen 610, and a driving circuit 620 and a control circuit 630 both connected to the display screen 610, the display screen 610 is an LCD screen, and the driving circuit 620 and the control circuit 630 are also both connected to the controller 310; the controller 310 lights the display screen 610 through the driving circuit 620, and controls the content displayed on the display screen 610 through the control circuit 630, and the display module 600 is configured to display the working information of the fault analysis apparatus, where the working information includes fault analysis information and working state information, the fault analysis information includes a possible fault cause corresponding to the collected fault code and a final fault cause obtained by analysis by the fault analysis apparatus, and the working state information includes a version number of the fault analysis system, a current working phase, an apparatus running time, and the like.

In another embodiment, the display screen 610 is preferably a tft (thin Film transistor) liquid crystal screen, and the display effect is better.

As shown in fig. 3, in this embodiment, the power module 700 further includes a power management circuit 710, a rechargeable battery 720 and a charging interface 730, where the rechargeable battery 720 and the charging interface 730 are connected to the power management circuit 710; the power management circuit 710 is configured to convert a voltage transmitted from the rechargeable battery 720 or the charging interface 730 into a multi-stage working voltage, so as to supply power to the communication data acquisition module 110, the charging pile data acquisition module 120, the fault analysis module 300, and other power consuming modules in this embodiment; the power management circuit 710 is also used to charge the rechargeable battery 720 through the charging interface 730.

As shown in fig. 4, the power management circuit 710 includes a power control chip U1 and a peripheral circuit corresponding to the power control chip U1, the model of the power control chip U1 may be CW1233ALBS, the power control chip U1 and the peripheral circuit thereof are respectively connected to the battery positive BAT +, the battery negative BAT-of the rechargeable battery 720 and the positive input VCC of the charging interface 730, the power control chip U1 is configured to perform voltage conversion, and output a multi-level working voltage by using the voltage of the rechargeable battery 720 or the voltage of the charging interface 730, the first output end 1, the second output end VC2 and the third output end VC3 of the power control chip U1 are configured to output working voltages with different voltages, and meanwhile, the power control chip U1 and the peripheral circuit are further configured to charge the rechargeable battery 720, and have functions of overcharge protection, overdischarge protection, over-temperature protection, overcurrent protection, short-circuit protection, and the like, to improve the service life of the rechargeable battery 720.

In this embodiment, the fast prompt module 800 is further included, the fast prompt module 800 is connected to the controller 310, the fast prompt module 800 includes a driving control circuit 830, a status indicator 810 and a buzzer 820, the status indicator 810 may be a dual-color LED lamp, the status indicator 810 is used for prompting the remaining power condition and the charging condition of the rechargeable battery 720, and the buzzer 820 is used for emitting a prompt sound. The status indicator lamp 810 and the buzzer 820 are both controlled by the controller 310 through the driving control circuit 830.

For example, under the control of the controller 310, the status indicator lamp 810 emits yellow light when the remaining capacity of the rechargeable battery 720 is sufficient, the status indicator lamp 810 emits red light when the remaining capacity of the rechargeable battery 720 is insufficient, and the status indicator lamp 810 emits blinking yellow light when the rechargeable battery 720 is charged.

The buzzer 820 may emit a warning sound when the remaining capacity of the rechargeable battery 720 is insufficient, or may emit a warning sound after the failure analysis device completes the failure analysis.

Fig. 5 shows a schematic structural diagram of a fault analysis device for a charging pile according to a second embodiment of the present application, and for convenience of description, only the parts related to this embodiment are shown, which are detailed as follows:

the present embodiment is based on the first embodiment, in the present embodiment, the system configuration parameters include analysis mode configuration parameters of the fault analysis module 300, and the analysis modes include a primary analysis mode, a middle-level analysis mode, and a high-level analysis mode, in which the running times are sequentially increased and the fault analysis capability is sequentially enhanced; the fault analysis device further comprises a dial switch 400, wherein the dial switch 400 is connected with the fault analysis module 300, so that the fault analysis module 300 works in a corresponding analysis mode according to the dial state of the dial switch 400 and the configuration parameters of the analysis mode. Wherein the dip switch 400 may be a four-bit integral switch.

In this embodiment, the fault code comparison table includes a conventional fault code and a part of special fault codes of the charging pile of a special model.

It should be noted that, when the dial state of the dial switch 400 is 0000, the fault analysis module 300 is in the primary analysis mode, and can analyze some common faults; when performing fault analysis at this time, the fault analysis module 300 searches for a fault code in a network message using a simple query statement in the SQL database query method; the fault analysis module 300 finds the fault reason corresponding to each fault code according to the collected fault codes and the conventional fault codes in the fault code comparison table, so that the fault analysis module 300 obtains a specific fault reason by combining with the equipment operation log analysis and provides a maintenance suggestion.

When the dial state of the dial switch 400 is 0001, the fault analysis module 300 is in the middle-level analysis mode; for the positioning analysis of some less common charging pile fault problems or composite charging pile fault problems (namely when a common analysis mode cannot position a problem), a middle-level analysis mode can be adopted, and at the moment, when fault analysis is carried out, the fault analysis module 300 searches fault codes in network messages by using complex query statements in an SQL database query method, and determines all possible fault reasons according to the searched fault codes and conventional fault codes and special fault codes in a fault code comparison table; if the specific fault reason cannot be directly determined according to all the current possible fault reasons, the fault analysis module 300 finds the state information corresponding to the fault time node in the device operation log and the network message according to the fault time node determined by the communication message, determines the specific fault reason according to the state information, and gives a maintenance suggestion. The middle-level analysis mode is the analysis mode used in the first embodiment.

In another embodiment, the first memory 320 further stores a node comparison table with failure time for the failure analysis module 300 to determine the specific failure cause according to the node comparison table with failure time and the determined node with failure time. The fault analysis module 300 may compare the found specific fault cause with the device operation log again for verification.

When the dial state of the dial switch 400 is 0011, the fault analysis module 300 is in the advanced analysis mode; the fault analysis module 300 analyzes the communication message, the device operation log and the network message sentence by sentence, searches fault codes and fault time nodes in the communication message, and gives a maintenance suggestion by combining the conventional fault codes and the special fault codes in the fault code comparison table to obtain specific fault reasons.

In the actual work process, after fault analysis module 300 finds the fault code simultaneously, even can't confirm concrete fault reason, fault analysis module 300 can all show the possible fault reason that every fault code corresponds through display screen 610 to help the staff to judge the fault reason of reality, promote the after-sales operation and maintenance efficiency and the effect of filling electric pile.

The staff can select to use suitable analysis mode according to the experience of self and the state of filling electric pile to failure analysis is accomplished to the highest efficiency.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A fault analysis device of a charging pile is characterized by comprising:

the acquisition module comprises a plurality of bus interfaces, and the bus interfaces are used for being connected with the charging pile so as to acquire historical data between the charging pile and a vehicle-mounted battery management system;

the fault analysis module comprises a controller and a first memory connected with the controller, the first memory is used for storing a fault code comparison table, and the controller is connected with the acquisition module;

the controller is configured to read the historical data and the fault code comparison table, and compare the historical data and the fault code comparison table to determine a specific fault.

2. The apparatus for analyzing faults of a charging pile according to claim 1, wherein the collection module comprises a communication data collection module and a charging pile data collection module;

the communication data acquisition module comprises a communication data bus interface which is used for being connected with a corresponding data bus of the charging pile so as to acquire a communication message transmitted between the charging pile and a vehicle-mounted battery management system; collecting the communication message for determining a fault time node;

the charging pile data acquisition module comprises a charging pile data bus interface, and the charging pile data bus interface is used for being connected with a corresponding data bus of the charging pile so as to acquire an equipment operation log of the charging pile and a network message transmitted between the charging pile and a server; collecting the network message to obtain a fault code, and collecting the equipment operation log to accurately determine a fault reason;

the historical data includes the communication packet, the device operation log, and the network packet.

3. The fault analysis device of the charging pile according to claim 1, wherein the fault analysis module further comprises a second memory connected to the controller; the second memory is used for storing system configuration parameters of the fault analysis device.

4. The apparatus according to claim 3, wherein the system configuration parameters include analysis mode configuration parameters of the fault analysis module, and the analysis modes include a primary analysis mode, a middle analysis mode, and a high analysis mode in which a running time is sequentially increased and a fault analysis capability is sequentially enhanced;

the fault analysis device further comprises a dial switch, and the dial switch is connected with the fault analysis module and used for enabling the fault analysis module to work in the corresponding analysis mode according to the dial state of the dial switch and the analysis mode configuration parameters.

5. The device of claim 3, wherein the second memory is a removable flash memory so as to modify the fault code look-up table.

6. The device of claim 2, wherein the communication data bus interface is a CAN bus interface, the communication data acquisition module further includes a first level shift circuit, one end of the first level shift circuit is connected to the communication data bus interface through a first signal isolation circuit, and the other end of the first level shift circuit is connected to the controller.

7. The device of claim 2, wherein the charging pile data bus interface is an RS232 bus interface, the charging pile data acquisition module further comprises a second level shift circuit, one end of the second level shift circuit is connected to the charging pile data bus interface through a second signal isolation circuit, and the other end of the second level shift circuit is connected to the controller.

8. The device for analyzing the fault of the charging pile according to claim 1, further comprising a key input module, wherein the key input module is connected with the controller and used for inputting an operation instruction.

9. The device of claim 1, further comprising a display module, wherein the display module includes a display screen, and a driving circuit and a control circuit both connected to the display screen, the driving circuit and the control circuit are also both connected to the controller, and the display module is configured to display operating information of the device.

10. The device of claim 1, further comprising a power module, wherein the power module comprises a power management circuit, a rechargeable battery and a charging interface, the rechargeable battery and the charging interface are both connected to the power management circuit, and the power management circuit can perform voltage conversion to generate a working voltage for supplying power to the acquisition module and the fault analysis module.

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