Distributed BMS aging method and aging system based on MES

Abstract

The invention belongs to the technical field of BMS aging systems, and discloses a distributed BMS aging method and aging system based on MES, and the aging system comprises an MES system, an MES upper computer, a mobile BMS workstation, a workstation section, and an AGV management system. And the MES system is used for managing the states and steps of all the mobile BMS workstations and the BMS. The work station section is divided into a charging area, a standing area and a discharging area, and the mobile BMS work station is connected with the BMS and moves in the work station section through the AGV management system, so that three BMS aging processes can be operated in parallel, the equipment utilization rate is effectively improved, and the aging efficiency is improved. And meanwhile, a starting area, an ending area and an abnormal area are set in the working station interval, so that a worker can conveniently intervene and manage the BMS equipment, and the overall stability of the aging system is improved through abnormal processing.

Description

Technical Field

[0001] The present invention belongs to the technical field of BMS aging systems, and in particular relates to a distributed BMS aging method and aging system based on MES. Background Art

[0002] The BMS aging system is a key quality control and screening link in the battery production process. It refers to the use of specialized automated equipment to simulate real-world user scenarios before battery modules or battery packs leave the factory, subjecting them to multiple cycles of charge and discharge in a controlled environment, and continuously monitoring the changing trends of key parameters such as battery voltage, current, temperature, internal resistance, and capacity in real time through the BMS. The BMS aging system can effectively activate and stabilize the chemical substances inside the battery, exposing potential defects or performance degradation that are difficult to detect in conventional static tests in advance, and identifying and eliminating defective products that may fail or severely degrade in performance early in use. BMS aging can not only significantly improve the safety and reliability of the final product leaving the factory, ensure the consistency of products within the batch, and calibrate BMS parameters to make them more in line with actual battery performance, but also significantly reduce product risks and improve product reliability.

[0003] In existing BMS burn-in systems, the charging, resting, and discharging functions are concentrated in a single channel. This results in one function being unavailable while the other two are in use, leaving the equipment idle, resulting in low utilization and aging efficiency. Therefore, to improve efficiency, some BMS burn-in systems compress the resting time, executing the next charge and discharge step before the BMS temperature stabilizes. This can lead to abnormal aging and even spontaneous combustion, creating safety risks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of low aging efficiency of BMS aging system in the prior art, thereby providing a distributed BMS aging method and aging system based on MES.

[0005] A distributed BMS aging method based on MES includes the following steps: In the starting area, multiple BMSs are connected to the BMS charging and discharging interface and the BMS communication module of the mobile BMS workstation. The mobile BMS workstation obtains the BMS number by scanning the barcode of the BMS, and sets the work steps and work step times corresponding to all the BMSs through the MES host computer; the MES host computer reads the RFID tag of the mobile BMS workstation and its workstation interval through the RFID reader / writer module, thereby obtaining the equipment information of the mobile BMS workstation; the MES host computer obtains the working status of the corresponding mobile BMS workstation through the BMS communication module; the MES host computer is communicatively connected with the MES system, and the MES system obtains the workstation interval and working status of the mobile BMS workstation, obtains the corresponding mobile BMS workstation and aging status of the BMS, generates an aging routing table based on the set work steps and work step times, and the MES host computer obtains the aging routing table; The MES host computer controls the mobile BMS workstation according to the aging routing table and records the status history of the mobile BMS workstation; if the mobile BMS workstation completes the work step of the current workstation interval, the mobile BMS workstation is moved to the next workstation interval of the set work step; if the status history of the mobile BMS workstation does not correspond to the corresponding work step, the BMS workstation is moved to the abnormal area; if the mobile BMS workstation completes the work steps of all workstation intervals, the mobile BMS workstation is moved to the end area.

[0006] Furthermore, the workstation interval also includes a charging area, a discharging area and a static area; based on the aging routing table, the mobile BMS workstation charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and keeps the corresponding BMS at rest in the static area according to the control of the MES host computer, and collects data corresponding to the BMS through the voltage and current measurement module, and transmits it to the MES host computer through the BMS communication module.

[0007] Furthermore, when the mobile BMS workstation is located in the end area, the staff disconnects the mobile BMS workstation from the corresponding BMS. When the MES host computer detects that the mobile BMS workstation is disconnected from the corresponding BMS, it controls the mobile BMS workstation to move to the starting area; when the MES host computer detects that the mobile BMS workstation is not disconnected from the corresponding BMS for more than a preset time, the control alarm module notifies the staff.

[0008] Furthermore, when the mobile BMS workstation is located in the abnormal area, the MES host computer controls the alarm module to notify the staff.

[0009] Furthermore, the MES host computer moves the mobile BMS workstation by controlling the AGV management system. The AGV management system includes multiple AGV transport robots. When the AGV transport robot moves the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to moving. After the AGV transport robot completes moving the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to in use and updates the location information of the corresponding mobile BMS workstation.

[0010] Furthermore, the MES host computer obtains the location information of the mobile BMS workstation from the MES system and sets it as the first location information; the MES host computer scans the RFID of the mobile BMS workstation through the RFID reading and writing module, obtains the workstation interval where it is located, and sets it as the second location information; the MES host computer obtains the work step currently executed by the mobile BMS workstation, obtains the corresponding location information from the aging routing table, and sets it as the third location information; the MES host computer compares the first location information, the second location information, and the third location information. If the first location information, the second location information, and the third location information are different, the corresponding mobile BMS workstation is moved to the abnormal area.

[0011] A distributed BMS aging system based on MES realizes BMS aging through the above-mentioned distributed BMS aging method, including an MES system, an MES host computer, a mobile BMS workstation, a workstation interval, and an AGV management system; the MES host computer is communicatively connected to the MES system, and the MES host computer controls the operation of the mobile BMS workstation and the AGV management system; the mobile BMS workstation is connected to the BMS to realize charging and discharging of the BMS and obtain the aging status of the BMS; the AGV management system is used to move the mobile BMS workstation within the workstation interval.

[0012] Furthermore, the workstation interval includes a starting area, a charging area, a discharging area, a static area, an ending area and an abnormal area; the MES host computer obtains the workstation interval corresponding to the mobile BMS workstation through the RFID tag of the mobile BMS workstation; a charging power supply is provided in the charging area, and the mobile BMS workstation charges the corresponding BMS through the charging power supply.

[0013] Furthermore, the mobile BMS workstation includes a UPS power module, a voltage and current measurement module, an RFID tag, a temperature and humidity sampling module, a BMS communication module, a BMS charge and discharge interface module, and an alarm module; the UPS power module is used to provide working power when the mobile BMS workstation is moving; the voltage and current measurement module is used to monitor the current and voltage corresponding to the BMS; the RFID tag is used to provide equipment information to the MES host computer; the temperature and humidity sampling module is used to monitor the temperature and humidity corresponding to the BMS; the BMS communication module is communicatively connected to the MES host computer; the BMS charge and discharge interface module is used to connect to the BMS to realize charging and discharging of the corresponding BMS; the alarm module is used to notify staff in case of abnormality.

[0014] Furthermore, the AGV management system includes a plurality of AGV transport robots, which are used to convert the position information into the coordinate point position corresponding to the mobile BMS workstation through RCS, so as to realize the transport movement corresponding to the mobile BMS workstation.

[0015] Beneficial effects: The present invention discloses a distributed BMS aging method and aging system based on MES, including an MES system, an MES host computer, a mobile BMS workstation, a workstation interval, and an AGV management system. The MES system is used to manage the status and work steps of all mobile BMS workstations and BMS. The workstation interval is divided into a charging area, a static area, and a discharge area. The mobile BMS workstation is connected to the BMS and moves within the workstation interval through the AGV management system, so that the three processes of BMS aging can operate in parallel, effectively improving the equipment utilization rate, thereby improving the aging efficiency. At the same time, the starting area, the ending area, and the abnormal area are set in the workstation interval to facilitate the staff to intervene in the management of the BMS equipment, and the overall stability of the aging system is improved through abnormal processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic block diagram showing the overall structure of the distributed BMS aging system of the present invention; Figure 2 A schematic structural diagram showing the connection between the MES host computer and the mobile BMS workstation of the present invention. DETAILED DESCRIPTION

[0018] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0020] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0021] Example 1: Reference Figure 1 and Figure 2 As shown, this embodiment provides a distributed BMS aging method based on MES, including the following method steps: In the starting area, multiple BMSs (Battery Management Systems) are connected to the BMS charging and discharging interfaces and BMS communication modules of the mobile BMS workstations. The mobile BMS workstations obtain the BMS number by scanning the barcode of the BMSs, and set the work steps and work step times corresponding to all the BMSs through the MES (Manufacturing Execution Systems) host computer. The MES host computer reads the RFID tags of the mobile BMS workstations and their workstation intervals through the RFID reader / writer module, thereby obtaining the device information of the mobile BMS workstations. The MES host computer obtains the working status of the corresponding mobile BMS workstations through the BMS communication module. The MES host computer is communicatively connected to the MES system, and the MES system obtains the workstation interval and working status of the mobile BMS workstations, obtains the corresponding mobile BMS workstations and aging status of the BMSs, generates an aging routing table based on the set work steps and work step times, and the MES host computer obtains the aging routing table. The MES host computer controls the mobile BMS workstation according to the aging routing table and records the status history of the mobile BMS workstation; if the mobile BMS workstation completes the work step of the current workstation interval, the mobile BMS workstation is moved to the next workstation interval of the set work step; if the status history of the mobile BMS workstation does not correspond to the corresponding work step, the BMS workstation is moved to the abnormal area; if the mobile BMS workstation completes the work steps of all workstation intervals, the mobile BMS workstation is moved to the end area.

[0022] Specifically, the workstation interval also includes a charging area, a discharging area and a static area; based on the aging routing table, the mobile BMS workstation charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and keeps the corresponding BMS at rest in the static area according to the control of the MES host computer, and collects data corresponding to the BMS through the voltage and current measurement module, and transmits it to the MES host computer through the BMS communication module.

[0023] When the mobile BMS workstation is located in the end area, the staff disconnects the mobile BMS workstation from the corresponding BMS. When the MES host computer detects that the mobile BMS workstation is disconnected from the corresponding BMS, it controls the mobile BMS workstation to move to the starting area; when the MES host computer detects that the mobile BMS workstation is not disconnected from the corresponding BMS for more than a preset time, it controls the alarm module to notify the staff.

[0024] When the mobile BMS workstation is located in the abnormal area, the MES host computer controls the alarm module to notify the staff.

[0025] The MES host computer moves the mobile BMS workstation by controlling the AGV management system. The AGV management system includes multiple AGV transport robots. When the AGV transport robot moves the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to moving. After the AGV transport robot completes moving the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to in use and updates the location information of the corresponding mobile BMS workstation.

[0026] The MES host computer obtains the location information of the mobile BMS workstation from the MES system and sets it as the first location information; the MES host computer scans the RFID of the mobile BMS workstation through the RFID reading and writing module, obtains the workstation interval where it is located, and sets it as the second location information; the MES host computer obtains the work step currently executed by the mobile BMS workstation, obtains the corresponding location information from the aging routing table, and sets it as the third location information; the MES host computer compares the first location information, the second location information, and the third location information. If the first location information, the second location information, and the third location information are different, the corresponding mobile BMS workstation is moved to the abnormal area.

[0027] In the traditional BMS aging method, charging, resting, and discharging are implemented in one channel. The aging of the previous BMS device must be completed before the aging of the next BMS device can begin. Therefore, the required time is T 总 = N * (T 充 + T 静 + T 放 ), where N represents the total number of BMS devices, T 充 、 T 静 、 T 放 Respectively represent the charging time, standing time and discharging time of a single BMS device.

[0028] In this embodiment, when the previous BMS device completes the charging step and enters the static step, the next BMS device can start the charging step. The charging step is the longest step, so the required time can be expressed as, T 总 = N * T 充 + T 静 + T 放 , effectively improving efficiency.

[0029] Example 2: This embodiment provides a distributed BMS aging system based on MES, which implements BMS aging through the distributed BMS aging method described in Example 1, and includes an MES system, an MES host computer, a mobile BMS workstation, a workstation interval, and an AGV management system; the MES host computer is communicatively connected to the MES system, and the MES host computer controls the operation of the mobile BMS workstation and the AGV management system; the mobile BMS workstation is connected to the BMS to implement charging and discharging of the BMS and obtain the aging status of the BMS; the AGV management system is used to move the mobile BMS workstation within the workstation interval.

[0030] The workstation interval includes a starting area, a charging area, a discharging area, a static area, an ending area and an abnormal area; the MES host computer obtains the workstation interval corresponding to the mobile BMS workstation through the RFID tag of the mobile BMS workstation; a charging power supply is provided in the charging area, and the mobile BMS workstation charges the corresponding BMS through the charging power supply.

[0031] The mobile BMS workstation includes a UPS power module, a voltage and current measurement module, an RFID tag, a temperature and humidity sampling module, a BMS communication module, a BMS charge and discharge interface module, and an alarm module; the UPS power module is used to provide working power when the mobile BMS workstation is moving; the voltage and current measurement module is used to monitor the current and voltage corresponding to the BMS; the RFID tag is used to provide equipment information to the MES host computer; the temperature and humidity sampling module is used to monitor the temperature and humidity corresponding to the BMS; the BMS communication module is communicatively connected to the MES host computer; the BMS charge and discharge interface module is used to connect to the BMS to realize charging and discharging of the corresponding BMS; the alarm module is used to notify staff in the event of an abnormality.

[0032] In this embodiment, the BMS communication module can achieve communication connection through I2C / HDQ / CAN / RS485 / Ethernet / Bluetooth / WIFI and adapt to the BMS protocol.

[0033] The AGV management system includes multiple AGV transport robots, which are used to convert position information into coordinate point positions corresponding to the mobile BMS workstation through RCS, thereby realizing the transport movement corresponding to the mobile BMS workstation.

[0034] In traditional BMS aging methods, charging, discharging, and resting are all performed in a single aging cabinet. While one of these steps is in progress, the other two functions are unavailable. This invention distributes the aging cabinet's functions into charging, discharging, and resting areas. The original aging cabinet's "charge-rest-discharge-rest-charge" model is now replaced with a distributed model of charging station B - resting station C - discharging station A - resting station A - charging station D. After completing one step, the station is freed for the next BMS aging step. No additional charging or discharging equipment is required during other steps, improving equipment utilization and aging efficiency.

[0035] This embodiment provides a distributed BMS aging method and aging system based on MES, including an MES system, an MES host computer, a mobile BMS workstation, a workstation interval, and an AGV management system. The MES system is used to manage the status and work steps of all mobile BMS workstations and BMSs. The workstation interval is divided into a charging area, a static area, and a discharge area. The mobile BMS workstation is connected to the BMS and moves within the workstation interval through the AGV management system, so that the three processes of BMS aging can operate in parallel, effectively improving equipment utilization and thus improving aging efficiency. At the same time, the starting area, end area, and abnormal area are set within the workstation interval to facilitate staff to intervene in and manage the BMS equipment, and the overall stability of the aging system is improved through abnormal handling.

[0036] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A distributed BMS aging method based on MES, characterized in that: The method comprises the following steps: In the starting area, multiple BMSs are connected to the BMS charging and discharging interface and the BMS communication module of the mobile BMS workstation. The mobile BMS workstation obtains the BMS number by scanning the barcode of the BMS, and sets the work steps and work step times corresponding to all the BMSs through the MES host computer; the MES host computer reads the RFID tag of the mobile BMS workstation and its workstation interval through the RFID reader / writer module, thereby obtaining the equipment information of the mobile BMS workstation; the MES host computer obtains the working status of the corresponding mobile BMS workstation through the BMS communication module; the MES host computer is communicatively connected with the MES system, and the MES system obtains the workstation interval and working status of the mobile BMS workstation, obtains the corresponding mobile BMS workstation and aging status of the BMS, generates an aging routing table based on the set work steps and work step times, and the MES host computer obtains the aging routing table; The MES host computer controls the mobile BMS workstation according to the aging routing table and records the status history of the mobile BMS workstation; if the mobile BMS workstation completes the work step of the current workstation interval, the mobile BMS workstation is moved to the next workstation interval of the set work step; if the status history of the mobile BMS workstation does not correspond to the corresponding work step, the BMS workstation is moved to the abnormal area; if the mobile BMS workstation completes the work steps of all workstation intervals, the mobile BMS workstation is moved to the end area.

2. A distributed BMS aging method based on MES according to claim 1, characterized in that: The workstation interval also includes a charging area, a discharging area and a static area; based on the aging routing table, the mobile BMS workstation charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and keeps the corresponding BMS at rest in the static area according to the control of the MES host computer, and collects data corresponding to the BMS through the voltage and current measurement module, and transmits it to the MES host computer through the BMS communication module.

3. The MES-based distributed BMS aging method according to claim 1, characterized in that: When the mobile BMS workstation is located in the end area, the staff disconnects the mobile BMS workstation from the corresponding BMS. When the MES host computer detects that the mobile BMS workstation is disconnected from the corresponding BMS, it controls the mobile BMS workstation to move to the starting area; when the MES host computer detects that the mobile BMS workstation is not disconnected from the corresponding BMS for more than a preset time, it controls the alarm module to notify the staff.

4. The MES-based distributed BMS aging method according to claim 1, characterized in that: When the mobile BMS workstation is located in the abnormal area, the MES host computer controls the alarm module to notify the staff.

5. The MES-based distributed BMS aging method according to claim 1, characterized in that: The MES host computer moves the mobile BMS workstation by controlling the AGV management system. The AGV management system includes multiple AGV transport robots. When the AGV transport robot moves the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to moving. After the AGV transport robot completes moving the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to in use and updates the location information of the corresponding mobile BMS workstation.

6. The MES-based distributed BMS aging method according to claim 5, characterized in that: The MES host computer obtains the location information of the mobile BMS workstation from the MES system and sets it as the first location information; the MES host computer scans the RFID of the mobile BMS workstation through the RFID reading and writing module, obtains the workstation interval where it is located, and sets it as the second location information; the MES host computer obtains the work step currently executed by the mobile BMS workstation, obtains the corresponding location information from the aging routing table, and sets it as the third location information; the MES host computer compares the first location information, the second location information, and the third location information. If the first location information, the second location information, and the third location information are different, the corresponding mobile BMS workstation is moved to the abnormal area.

7. A distributed BMS aging system based on MES, characterized by: BMS aging is achieved through the distributed BMS aging method described in any one of claims 1 to 6, including an MES system, an MES host computer, a mobile BMS workstation, a workstation interval, and an AGV management system; the MES host computer is communicatively connected to the MES system, and the MES host computer controls the operation of the mobile BMS workstation and the AGV management system; the mobile BMS workstation is connected to the BMS to realize charging and discharging of the BMS and obtain the aging status of the BMS; the AGV management system is used to move the mobile BMS workstation within the workstation interval.

8. The MES-based distributed BMS aging system according to claim 7, characterized in that: The workstation interval includes a starting area, a charging area, a discharging area, a static area, an ending area and an abnormal area; the MES host computer obtains the workstation interval corresponding to the mobile BMS workstation through the RFID tag of the mobile BMS workstation; a charging power supply is provided in the charging area, and the mobile BMS workstation charges the corresponding BMS through the charging power supply.

9. The MES-based distributed BMS aging system according to claim 7, characterized in that: The mobile BMS workstation includes a UPS power module, a voltage and current measurement module, an RFID tag, a temperature and humidity sampling module, a BMS communication module, a BMS charge and discharge interface module, and an alarm module; the UPS power module is used to provide working power when the mobile BMS workstation is moving; the voltage and current measurement module is used to monitor the current and voltage corresponding to the BMS; the RFID tag is used to provide equipment information to the MES host computer; The temperature and humidity sampling module is used to monitor the temperature and humidity of the corresponding BMS; the BMS communication module is connected to the MES host computer for communication; the BMS charge and discharge interface module is used to connect to the BMS to realize charging and discharging of the corresponding BMS; the alarm module is used to notify staff in case of abnormality.

10. The MES-based distributed BMS aging system according to claim 7, characterized in that: The AGV management system includes multiple AGV transport robots, which are used to convert position information into coordinate point positions corresponding to the mobile BMS workstation through RCS, thereby realizing the transport movement corresponding to the mobile BMS workstation.

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