An MES-based distributed BMS aging method and aging system

Abstract

The application belongs to the technical field of BMS aging systems, and discloses a distributed BMS aging method and aging system based on MES, which comprises an MES system, an MES host computer, a mobile BMS workstation, a workstation interval and an AGV management system. The MES system is used for managing the states and working steps of all mobile BMS workstations and BMS. The workstation interval is divided into a charging area, a standing area and a discharging area. The mobile BMS workstation is connected with the BMS and moves in 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 and thus the aging efficiency. Meanwhile, a starting area, an ending area and an abnormal area are set in the workstation interval, which facilitates the intervention management of the BMS equipment by the workers and improves the overall stability of the aging system through abnormal treatment.

Description

Technical Field

[0001] This invention belongs to the technical field of BMS aging system, specifically relating to a distributed BMS aging method and aging system based on MES. Background Technology

[0002] Battery Management System (BMS) aging is a critical quality control and screening step in the battery production process. It involves using specialized automated equipment to simulate real-world user scenarios before battery modules or packs leave the factory. Under controlled conditions, these modules undergo multiple charge-discharge cycles while the BMS continuously monitors the changes in key parameters such as voltage, current, temperature, internal resistance, and capacity in real time. The BMS aging system effectively activates and stabilizes the internal chemical substances of the battery, exposing potential defects or performance degradation that are difficult to detect in conventional static testing. It identifies and eliminates defective products that may fail or experience severe performance degradation early in use. BMS aging not only significantly improves the safety and reliability of the final product, ensures batch consistency, and calibrates BMS parameters to better reflect actual battery performance, but also significantly reduces product risk and improves product reliability.

[0003] In existing technologies, the charging, resting, and discharging functions of a BMS aging system are concentrated in one channel. This results in the other two functions being unusable when one function is being used, leading to idle equipment, low utilization, and low aging efficiency. Consequently, some BMS aging systems compress the resting time to improve efficiency, executing the next charging and discharging step before the BMS temperature has stabilized. This can cause abnormal aging, or even spontaneous combustion, posing 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 existing BMS aging systems, 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 initial area, multiple BMSs are connected to the BMS charging / discharging interface and BMS communication module of a mobile BMS workstation. The mobile BMS workstation obtains the BMS number by scanning the barcode of the BMS, and sets the corresponding work steps and work step times for all BMSs through the MES host computer. The MES host computer reads the RFID tag of the mobile BMS workstation and its workstation range through the RFID reader / writer module, thereby obtaining the device 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 communicates with the MES system, and the MES system obtains the workstation range 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 steps of the current workstation interval, it moves the mobile BMS workstation to the next workstation interval of the set work steps. If the status history of the mobile BMS workstation does not match the corresponding work steps, it moves the BMS workstation to the abnormal area. If the mobile BMS workstation completes the work steps of all workstation intervals, it moves the mobile BMS workstation to the end area.

[0006] Furthermore, the workstation area also includes a charging area, a discharging area, and a resting area; based on the aging routing table, the mobile BMS workstation, under the control of the MES host computer, charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and rests the corresponding BMS in the resting area, and collects data of the corresponding 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 start area. When the MES host computer detects that the mobile BMS workstation has not been disconnected from the corresponding BMS for a preset time, it controls the alarm module to notify the staff.

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

[0009] Furthermore, the MES host computer controls the AGV management system to move the mobile BMS workstation. The AGV management system includes multiple AGV transport robots. When the AGV transport robots move the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to "moving". After the AGV transport robots finish 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 reader / writer module to obtain the workstation's location range and sets it as the second location information; the MES host computer obtains the current work step 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, and if the first location information, the second location information, and the third location information are different, it moves the corresponding mobile BMS workstation to the abnormal area.

[0011] A distributed BMS aging system based on MES (Manufacturing Execution System) achieves BMS aging through the aforementioned distributed BMS aging method. The system includes an MES system, an MES host computer, a mobile BMS workstation, workstation intervals, and an AGV (Automated Guided Vehicle) management system. The MES host computer is communicatively connected to the MES system and controls the operation of the mobile BMS workstation and the AGV management system. The mobile BMS workstation connects to the BMS, performs charging and discharging of the BMS, and acquires the aging status of the BMS. The AGV management system is used to move the mobile BMS workstation within the workstation intervals.

[0012] Furthermore, the workstation area includes a starting area, a charging area, a discharging area, a resting area, an ending area, and an abnormal area; the MES host computer obtains the workstation area where the mobile BMS workstation is located through the RFID tag of the mobile BMS workstation; the charging area is equipped with a charging power supply, and the mobile BMS workstation charges the corresponding BMS through the charging power supply.

[0013] Furthermore, the mobile BMS workstation includes a UPS power supply module, a voltage and current measurement module, an RFID tag, a temperature and humidity sampling module, a BMS communication module, a BMS charging and discharging interface module, and an alarm module. The UPS power supply module provides operating power for the mobile BMS workstation during movement. The voltage and current measurement module monitors the current and voltage of the corresponding BMS. The RFID tag provides device information to the MES host computer. The temperature and humidity sampling module monitors the temperature and humidity of the corresponding BMS. The BMS communication module communicates with the MES host computer. The BMS charging and discharging interface module connects to the BMS to enable charging and discharging of the corresponding BMS. The alarm module notifies staff in case of abnormalities.

[0014] Furthermore, the AGV management system includes multiple AGV handling robots, which are used to convert position information into coordinate points corresponding to the mobile BMS workstation through RCS, thereby realizing the handling and movement of the corresponding mobile BMS workstation.

[0015] Beneficial Effects: This invention discloses a distributed BMS aging method and system based on MES, including an MES system, an MES host computer, mobile BMS workstations, workstation intervals, and an AGV management system. The MES system manages the status and steps of all mobile BMS workstations and BMS. The workstation interval is divided into a charging area, a resting area, and a discharging area. The mobile BMS workstations connect to the BMS and move within the workstation interval through the AGV management system, allowing the three aging processes of the BMS to operate in parallel, effectively improving equipment utilization and thus increasing aging efficiency. Simultaneously, a start area, an end area, and an anomaly area are set within the workstation interval, facilitating intervention and management of the BMS equipment by staff, and improving the overall stability of the aging system through anomaly handling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic block diagram showing the overall structure of the distributed BMS aging system of the present invention. Figure 2 This is a schematic diagram showing the connection structure between the MES host computer and the mobile BMS workstation of the present invention. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this 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 construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the 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 steps: In the initial phase, multiple Battery Management Systems (BMS) are connected to the BMS charging / discharging interface and BMS communication module of a mobile BMS workstation. The mobile BMS workstation obtains the BMS number by scanning the BMS barcode and sets the corresponding work steps and timelines for all BMS via the MES (Manufacturing Execution System) host computer. The MES host computer reads the RFID tag and its workstation range from the mobile BMS workstation using an RFID reader / writer module to obtain the device 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 communicates with the MES system, which obtains the workstation range and working status of the mobile BMS workstation, the corresponding mobile BMS workstation and aging status of the BMS, and generates an aging routing table based on the set work steps and timelines. The MES host computer then 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 steps of the current workstation interval, it moves the mobile BMS workstation to the next workstation interval of the set work steps. If the status history of the mobile BMS workstation does not match the corresponding work steps, it moves the BMS workstation to the abnormal area. If the mobile BMS workstation completes the work steps of all workstation intervals, it moves the mobile BMS workstation to the end area.

[0022] Specifically, the workstation area also includes a charging area, a discharging area, and a resting area. Based on the aging routing table, the mobile BMS workstation, under the control of the MES host computer, charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and rests the corresponding BMS in the resting area. It also collects data of the corresponding 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 start area. When the MES host computer detects that the mobile BMS workstation has not been disconnected from the corresponding BMS for 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 control alarm module notifies the staff.

[0025] The MES host computer controls the AGV management system to move the mobile BMS workstation. The AGV management system includes multiple AGV transport robots. When the AGV transport robots move the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to "moving". After the AGV transport robots finish 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 reader / writer module to obtain the workstation range it is located in and sets it as the second location information; the MES host computer obtains the work step currently being 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, and if the first location information, the second location information, and the third location information are different, it moves the corresponding mobile BMS workstation to the abnormal area.

[0027] In traditional BMS aging methods, charging, resting, and discharging are all performed in a single channel. The aging process for the next BMS can only begin after the previous one has fully completed its aging process. 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 These represent the charging time, resting time, and discharging time of a single BMS device, respectively.

[0028] In this embodiment, once the previous BMS device completes the charging step and transitions to the resting step, the next BMS device can begin the charging step. The charging step is the longest step, and its required duration can be expressed as T. 总 = N *T 充 + T 静 + T 放 This effectively improved efficiency.

[0029] Example 2: This embodiment provides a distributed BMS aging system based on MES, which realizes BMS aging through the distributed BMS aging method described in Embodiment 1. The system includes an MES system, an MES host computer, a mobile BMS workstation, workstation intervals, and an AGV management system. The MES host computer is communicatively connected to the MES system and controls the operation of the mobile BMS workstation and the AGV management system. The mobile BMS workstation connects to the BMS, realizes the charging and discharging of the BMS, and obtains 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 area includes a start area, a charging area, a discharging area, a resting area, an end area, and an abnormal area; the MES host computer obtains the workstation area where the mobile BMS workstation is located through the RFID tag of the mobile BMS workstation; the charging area is equipped with a charging power supply, 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 charging and discharging interface module, and an alarm module. The UPS power module provides operating power to the mobile BMS workstation while it is in motion. The voltage and current measurement module monitors the current and voltage of the corresponding BMS. The RFID tag provides device information to the MES host computer. The temperature and humidity sampling module monitors the temperature and humidity of the corresponding BMS. The BMS communication module communicates with the MES host computer. The BMS charging and discharging interface module connects to the BMS to enable charging and discharging. The alarm module notifies staff of any abnormalities.

[0032] In this embodiment, the BMS communication module can achieve communication connection via I2C / HDQ / CAN / RS485 / Ethernet / Bluetooth / WIFI and is compatible with the BMS protocol.

[0033] The AGV management system includes multiple AGV handling robots, which are used to convert position information into coordinate points corresponding to the mobile BMS workstation through RCS, so as to realize the handling and movement of the corresponding mobile BMS workstation.

[0034] In traditional BMS aging methods, charging, discharging, and resting are all performed on a single aging cabinet. While one step is being performed, the other two functions become unavailable. This invention distributes the functions of the aging cabinet into charging, discharging, and resting areas. The original sequential charging-resting-discharging-resting-charging pattern is replaced with a distributed system: charging station B - resting station C - discharging station A - resting station A - charging station D. After one step is completed, the station becomes available for the next BMS aging process, without requiring additional charging or discharging equipment during other steps. This improves equipment utilization and thus increases aging efficiency.

[0035] This embodiment provides a distributed BMS aging method and system based on MES, including an MES system, an MES host computer, mobile BMS workstations, workstation intervals, and an AGV management system. The MES system manages the status and steps of all mobile BMS workstations and the BMS. The workstation interval is divided into a charging area, a resting area, and a discharging area. The mobile BMS workstations connect to the BMS and move within the workstation interval through the AGV management system, allowing the three aging processes to operate in parallel, effectively improving equipment utilization and thus increasing aging efficiency. Simultaneously, a start area, an end area, and an anomaly area are set within the workstation interval to facilitate intervention and management of the BMS equipment by staff, and anomaly handling improves the overall stability of the aging system.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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 embodiments described above are merely illustrative of several implementation methods of this application, and 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 those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A distributed BMS aging method based on MES, characterized in that, The following steps are included: In the initial area, multiple BMSs are connected to the BMS charging / discharging interface and BMS communication module of a mobile BMS workstation. The mobile BMS workstation obtains the BMS number by scanning the barcode of the BMS, and sets the corresponding work steps and work step times for all BMSs through the MES host computer. The MES host computer reads the RFID tag of the mobile BMS workstation and its workstation range through the RFID reader / writer module, thereby obtaining the device 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 communicates with the MES system, and the MES system obtains the workstation range 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 steps of the current workstation interval, it moves the mobile BMS workstation to the next workstation interval of the set work steps. If the status history of the mobile BMS workstation does not match the corresponding work steps, it moves the mobile BMS workstation to the abnormal area. If the mobile BMS workstation completes the work steps of all workstation intervals, it moves the mobile BMS workstation to the end area. The MES host computer controls the AGV management system to move the mobile BMS workstation. The AGV management system includes multiple AGV transport robots. When the AGV transport robots move the mobile BMS workstation, the MES system sets the working status of the corresponding mobile BMS workstation to "moving". After the AGV transport robots finish 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. 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 reader / writer module to obtain the workstation range it is located in and sets it as the second location information; the MES host computer obtains the work step currently being 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, and if the first location information, the second location information, and the third location information are different, it moves the corresponding mobile BMS workstation to the abnormal area.

2. The distributed BMS aging method based on MES according to claim 1, characterized in that, The workstation area also includes a charging area, a discharging area, and a resting area. Based on the aging routing table, the mobile BMS workstation, under the control of the MES host computer, charges the corresponding BMS in the charging area, discharges the corresponding BMS in the discharging area, and rests the corresponding BMS in the resting area. It also collects data of the corresponding BMS through the voltage and current measurement module and transmits it to the MES host computer through the BMS communication module.

3. The distributed BMS aging method based on MES 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 start area. When the MES host computer detects that the mobile BMS workstation has not been disconnected from the corresponding BMS for a preset time, it controls the alarm module to notify the staff.

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

5. A distributed BMS aging system based on MES, characterized in that, The distributed BMS aging method according to any one of claims 1 to 4 is used to achieve BMS aging, comprising an MES system, an MES host computer, a mobile BMS workstation, a workstation area, and an AGV management system; the MES host computer is communicatively connected to the MES system, and controls the operation of the mobile BMS workstation and the AGV management system; the mobile BMS workstation is connected to the BMS, realizes the charging and discharging of the BMS and obtains the aging status of the BMS; the AGV management system is used to move the mobile BMS workstation within the workstation area.

6. A distributed BMS aging system based on MES according to claim 5, characterized in that, The workstation area includes a start area, a charging area, a discharging area, a resting area, an end area, and an abnormal area; the MES host computer obtains the workstation area where the mobile BMS workstation is located through the RFID tag of the mobile BMS workstation; the charging area is equipped with a charging power supply, and the mobile BMS workstation charges the corresponding BMS through the charging power supply.

7. A distributed BMS aging system based on MES according to claim 5, 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 charging and discharging interface module, and an alarm module. The UPS power module provides power for the mobile BMS workstation. The voltage and current measurement module monitors the current and voltage of the corresponding BMS. The RFID tag provides device information to the MES host computer. The temperature and humidity sampling module monitors the temperature and humidity of the corresponding BMS. The BMS communication module communicates with the MES host computer. The BMS charging and discharging interface module connects to the BMS to enable charging and discharging. The alarm module notifies staff of any abnormalities.

8. A distributed BMS aging system based on MES according to claim 5, characterized in that, The AGV management system includes multiple AGV handling robots, which are used to convert position information into coordinate points corresponding to the mobile BMS workstation through RCS, so as to realize the handling and movement of the corresponding mobile BMS workstation.

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