BMS system based on 4G monitoring

Abstract

The utility model discloses a BMS system based on 4G monitoring. The BMS system comprises a BMS, a 4G transmission module and a monitoring platform. The BMS is connected with the 4G transmission module, and battery working information data collected by the BMS is sent to the monitoring platform through the 4G transmission module; and the monitoring platform is used for receiving and displaying the battery working information data sent by the 4G transmission module in real time. A GPS module is arranged in the 4G transmission module; the BMS and the GPS module are communicated through a UART (Universal Asynchronous Receiver / Transmitter) serial port, the BMS and the GPS module are connected through a flat cable interface, the flat cable interface comprises a communication interface arranged on the BMS, and the GPS module is provided with an interface matched with the communication interface. The Baud rate of the UART serial port communication bus is set to be 9600 bps, the communication data format is 8N1, and a full duplex mode is adopted in the serial communication direction. According to the device, a user can timely and accurately obtain the basic information of the battery pack, especially when the battery pack is in an abnormal state, the user is reminded of the situation needing to be noticed, and the effect of safety early warning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery management, in particular to a BMS system based on 4G monitoring. Background Art

[0002] In recent years, the country has introduced a series of policies to actively promote the development of new energy vehicles. At the same time, infrastructure such as new energy electric vehicle charging piles has been continuously improved, and the scale of new energy electric vehicles in my country has expanded rapidly. As my country actively promotes policies related to new energy electric vehicles, the new energy vehicle industry is developing rapidly. By 2023, the new energy vehicle industry will further accelerate its development and become a mainstream market. From 2018 to 2023, the sales of new energy electric vehicles showed a good growth trend. According to incomplete statistics, the sales of new energy vehicles exceeded 1.5 million units in 2018, reached 1.9 million units in 2019, and are expected to reach more than 5 million units in 2023, which will significantly exceed the historical high.

[0003] Such a large number will also cause safety concerns. The battery management system (BMS) is a control system that protects the safe use of power batteries. It monitors the use status of the battery at all times, alleviates the inconsistency of the battery pack through necessary measures, and provides protection for the safe use of new energy vehicles. The new energy electric vehicle BMS mainly has five major functions: battery status monitoring, battery status estimation, battery safety protection, battery energy control, and battery information management. This protection measure alone is not perfect, and the status of the battery pack needs to be detected. However, the real-time status of the battery pack is not known. Therefore, a device that can timely understand the basic status of the battery is needed. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a BMS system based on 4G monitoring. The device can timely understand the basic situation of the battery through the 4G network, and upload the estimated remaining life of the battery pack and other information to the background through 4G communication in time, so as to quickly make safety decisions to protect the user himself.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The 4G monitoring-based BMS system provided by the utility model comprises a BMS and a 4G transmission module; a GPS module is provided in the 4G transmission module; the BMS is connected to the 4G transmission module, and the battery working information data collected by the BMS is sent through the 4G transmission module;

[0007] The BMS and the GPS module communicate with each other through a UART serial port. The BMS and the GPS module are connected through a flat cable interface. The flat cable interface includes a communication interface provided on the BMS. The GPS module is provided with an interface matching the communication interface.

[0008] Furthermore, the baud rate of the UART serial communication bus is set to 9600bps, the communication data format adopts 8N1, and the serial communication direction adopts full-duplex mode.

[0009] Further, the communication interface includes a power interface V1, an input and output interface GPIO, a serial port receiving TX, and a serial port sending RX;

[0010] The power interface V1 on the BMS module is connected to the power interface V1 on the GPS module;

[0011] The input / output interface GPIO on the BMS module is connected to the input / output interface GPIO on the GPS module;

[0012] The serial port receiving TX on the BMS module is connected to the serial port receiving TX on the GPS module;

[0013] The serial port sending RX on the BMS module is connected to the serial port sending RX on the GPS module.

[0014] Furthermore, the communication interface also includes a reserved interface V2 and a module ground interface GND;

[0015] The reserved interface V2 on the BMS module is connected to the reserved interface V2 on the GPS module;

[0016] The module ground interface GND on the BMS module is connected to the module ground interface GND on the GPS module.

[0017] Furthermore, it also includes a monitoring platform; the 4G transmission module sends the battery working information data collected by the BMS to the monitoring platform; the monitoring platform is used to receive and display the battery working information data sent by the 4G transmission module in real time.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a BMS system based on 4G monitoring, including a BMS, a 4G transmission module, and a monitoring platform; the BMS is connected to the 4G transmission module, and the battery working information data collected by the BMS is sent to the monitoring platform through the 4G transmission module; the monitoring platform is used to receive and display the battery working information data sent by the 4G transmission module in real time. A GPS module is provided in the 4G transmission module; UART serial communication is adopted between the BMS and the GPS module, and the BMS and the GPS module are connected using a flat cable interface, the flat cable interface includes a communication interface provided on the BMS, and the GPS module is provided with an interface matching the communication interface. The baud rate of the UART serial communication bus is set to 9600bps, the communication data format adopts 8N1, and the serial communication direction adopts full-duplex mode. The device allows users to obtain basic information of the battery pack in a timely and accurate manner, especially when the battery pack is in an abnormal state, reminding users of situations that need attention, and plays a role in safety warning.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0022] Figure 1 This is a schematic diagram of the wiring structure.

[0023] Figure 2 This is the structure diagram of the BMS system based on 4G monitoring.

[0024] Figure 3 This is the structural diagram of the monitoring platform. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] like Figure 1 and Figure 2 As shown, Figure 1 The following is a schematic diagram of the wiring structure. Figure 2This is a structural diagram of a BMS system based on 4G monitoring. The BMS system based on 4G monitoring provided in this embodiment includes a BMS, a 4G transmission module and a monitoring platform; the BMS is connected to the 4G transmission module, and the battery working information data collected by the BMS is sent to the monitoring platform through the 4G transmission module; the monitoring platform is used to receive and display the battery working information data sent by the 4G transmission module in real time.

[0027] The monitoring platform in this embodiment allows users to obtain basic information about the battery pack in a timely manner, especially when the battery pack is in an abnormal state, reminding users of situations that require attention, thereby playing a role in safety warning.

[0028] A GPS module is provided in the 4G transmission module; UART serial port communication is adopted between the BMS and the GPS module, the baud rate of the UART serial port communication bus is set to 9600bps, the communication data format adopts 8N1, and the serial communication direction adopts full-duplex mode; the BMS and the GPS module are connected using a flat cable interface, the flat cable interface includes a communication interface arranged on the BMS, and the GPS module is provided with an interface matching the communication interface.

[0029] The communication interface includes a power interface V1, an input / output interface GPIO, a serial port receiving TX, and a serial port sending RX; the power interface V1 on the BMS module is connected to the power interface V1 on the GPS module; the input / output interface GPIO on the BMS module is connected to the input / output interface GPIO on the GPS module; the serial port receiving TX on the BMS module is connected to the serial port receiving TX on the GPS module; the serial port sending RX on the BMS module is connected to the serial port sending RX on the GPS module.

[0030] The communication interface also includes a reserved interface V2 and a module ground interface GND; the reserved interface V2 on the BMS module is connected to the reserved interface V2 on the GPS module; the module ground interface GND on the BMS module is connected to the module ground interface GND on the GPS module.

[0031] The communication interface is described in detail in the following table:

[0032]

[0033] The data transmission, reception and response process of the GPS module in this embodiment is as follows:

[0034] Among them, the request frame sent by the GPS module in the 4G module to the BMS is as follows:

[0035]

[0036] Among them, the response frame sent by BMS to the GPS module in the 4G module is as follows:

[0037]

[0038]

[0039] The GPS module of this embodiment adopts a GNSS positioning module, which is connected to the BMS module; the GNSS positioning module is used to obtain the location signal of the battery pack and transmit the location signal to the outside through the GPS module. The parameters of data transmission and reception can be set in the following manner.

[0040]

[0041] The BMS in this embodiment is further provided with a sleep function module, which is used to enter a sleep state when not working, thereby reducing the current consumption when there is no signal input, that is, the current consumed by the device itself without being affected by external factors.

[0042] like Figure 3 As shown, Figure 3 To monitor the structure of the platform, the user inputs the command and sends it. After receiving the command, the 4G module collects the status data of the battery pack according to the command, and then sends the status data to the platform data. Finally, the platform data is fed back to the user and displays a series of information data such as the battery model, cell model, after-sales management, and revenue management. It can be in the form of tables, graphics, text, sound signals or other optical signals.

[0043] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. The BMS system based on 4G monitoring is characterized by: It includes a BMS and a 4G transmission module; a GPS module is arranged in the 4G transmission module; the BMS is connected to the 4G transmission module, and the battery working information data collected by the BMS is sent through the 4G transmission module; the BMS and the GPS module communicate with each other using a UART serial port, and the BMS and the GPS module are connected using a flat cable interface, the flat cable interface includes a communication interface arranged on the BMS, and the GPS module is provided with an interface matching the communication interface.

2. The BMS system based on 4G monitoring as claimed in claim 1, characterized in that: The baud rate of the UART serial communication bus is set to 9600bps, the communication data format adopts 8N1, and the serial communication direction adopts full-duplex mode.

3. The BMS system based on 4G monitoring as claimed in claim 1, characterized in that: The communication interface includes a power interface V1, an input / output interface GPIO, a serial port receiving TX and a serial port sending RX; the power interface V1 on the BMS module is connected to the power interface V1 on the GPS module; the input / output interface GPIO on the BMS module is connected to the input / output interface GPIO on the GPS module; the serial port receiving TX on the BMS module is connected to the serial port receiving TX on the GPS module; the serial port sending RX on the BMS module is connected to the serial port sending RX on the GPS module.

4. The BMS system based on 4G monitoring as claimed in claim 1, characterized in that: The communication interface also includes a reserved interface V2 and a module ground interface GND; the reserved interface V2 on the BMS module is connected to the reserved interface V2 on the GPS module; the module ground interface GND on the BMS module is connected to the module ground interface GND on the GPS module.

5. The BMS system based on 4G monitoring as claimed in claim 1, characterized in that: It also includes a monitoring platform; the 4G transmission module sends the battery working information data collected by the BMS to the monitoring platform; the monitoring platform is used to receive and display the battery working information data sent by the 4G transmission module in real time.

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