High-capacity battery safety monitoring system

Abstract

The utility model belongs to the technical field of new energy locomotive battery management, and relates to a high-capacity battery safety monitoring system, which is characterized in that a main controller is used for receiving data of each module and coordinating the work of each module; the acquisition module is used for monitoring various key parameters of the power battery system in real time; the alarm module is used for sending out a sound-light alarm signal when the abnormal condition of the battery system is monitored; the voice module is used for reminding a locomotive driver of the fault level, the fault content and the processing measures of the battery system in a voice reporting mode; the positioning module is used for providing real-time position information, speed information and vehicle speed limit of a vehicle or a power battery; the real-time monitoring module is used for outputting real-time operation data of the battery; the remote information terminal module is used for uploading the collected data to the operation platform; the operation platform is used for collecting operation data of locomotive battery replacement and outputting alarm information and operation state information. The system realizes real-time monitoring of the internal and external environments and the running state of the battery.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy locomotive battery management technical field especially relates to a large capacity battery safety monitoring system. BACKGROUND

[0002] The new energy locomotive battery capacity is far greater than the electric quantity of ordinary commercial vehicle and passenger car, and some reach more than ten times thereof, and the power battery system is the core component of the new energy locomotive, and its safety performance is directly related to the operation safety of the vehicle and the use safety of the user. With the rapid development of the new energy locomotive market, the use amount of the power battery increases sharply, and the safety problems caused thereby are increasingly highlighted. Therefore, the power battery safety monitoring is very necessary.

[0003] The existing power battery system mainly relies on the battery management system BMS of the battery itself to carry out the safety management of the battery, but the battery management system BMS itself has great limitations, and can only monitor the temperature, current, voltage and other parameters inside the battery, lacks the monitoring of the external environment and the running state of the battery, and is difficult to realize the prospective safety early warning. Once the external environment is abnormal, the battery management system BMS itself cannot perceive in advance, and finally leads to the failure of the whole battery system function, and even causes the safety accident. UTILITY MODEL CONTENTS

[0004] The utility model discloses a large capacity battery safety monitoring system that can realize the real-time monitoring of the internal and external environment and the running state of the battery.

[0005] The above-mentioned purpose of the utility model is realized through the following technical scheme:

[0006] A large capacity battery safety monitoring system, comprising a main controller, an acquisition module, an alarm module, a positioning module, a real-time monitoring module, a voice module, a battery management system BMS, a remote information terminal module and an operation platform.

[0007] The main controller is used for receiving the data of the acquisition module, the battery management system BMS, the positioning module and the remote information terminal module, and coordinating the work between the modules.

[0008] The output end of the acquisition module is connected with the main controller, and is used for monitoring the key parameters of the power battery system in real time, including voltage, current, temperature, smoke and light intensity.

[0009] The input end of the alarm module is connected with the main controller, and the alarm module adopts audible and light alarm, and is used for sending audible and light alarm signals in time when the abnormal condition of the battery system is monitored, and notifying the relevant personnel to take emergency measures.

[0010] The input end of the voice module is connected with the alarm module, and is used for prompting the locomotive driver through the voice alarm mode of the battery system failure level, failure content and processing measures;

[0011] The positioning module adopts a Beidou GPS positioning module, and the output end of the positioning module is connected with the main controller, and is used for providing the real-time position information, speed information and vehicle speed limit of the vehicle or power battery;

[0012] The input end of the real-time monitoring module is connected with the main controller and the alarm module, and is used for outputting the real-time running data of the battery, and displaying the working state and environment of the power battery through the driver display screen and the background operation monitoring system;

[0013] The remote information terminal module is integrated with an Ethernet interface, an RS485 interface, a GPRS interface and a data processing chip, is used for realizing the connection and communication between the main controller and the operation platform, is responsible for uploading the collected data to the operation platform, and supports remote monitoring and management;

[0014] The operation platform is connected with the remote information terminal module, is used for collecting the operation data of the locomotive battery replacement, and outputs the alarm information and the running state information.

[0015] Moreover, the main controller adopts an STM32 series microprocessor based on ARM architecture; the main controller comprises a power conversion circuit with a wide voltage input range, a multi-stage filter circuit, an overvoltage protection circuit, an overcurrent protection circuit, a communication interface, an on-chip Flash and SRAM, and an external storage device.

[0016] Moreover, the acquisition module comprises a voltage sensor, a current sensor, a temperature sensor, a smoke detector, a temperature detector and a combustible gas detector; the voltage sensor and the current sensor are arranged on the main loop output by the battery system, and are used for collecting the voltage and current parameters of the power battery respectively; the temperature sensor is arranged in the battery compartment and located outside the battery pack, and is used for collecting the temperature parameter of the power battery; the smoke detector, the temperature detector and the combustible gas detector are arranged outside the battery pack, and are used for collecting the state outside the battery pack.

[0017] The utility model has the advantages and positive effects that:

[0018] The utility model discloses a battery safety monitoring system which is composed of a main controller, a collection module, an alarm module, a positioning module, a real-time monitoring module, a voice module, a battery management system (BMS), a remote information terminal module and an operation platform. The collection module can be used to acquire various key parameters of the power battery system. The main controller triggers the alarm module according to the data collected by the collection module. According to the alarm level, the alarm module generates different alarm signals through sound and light. The system can realize safety early warning and prevent safety accidents. The real-time monitoring module can be used to collect the running data of the battery in real time and continuously monitor the state of the battery to ensure that the battery runs within the safety parameters. In addition, the system can reduce the unplanned replacement and maintenance of the battery, thereby reducing the operation cost. The system is provided with the remote information terminal module and the operation platform. The system can be used to analyze a large amount of historical and real-time data, predict the possible problems of the battery and perform maintenance in advance to reduce the failure rate.

[0019] In summary, the system can realize real-time monitoring and predictive maintenance of the internal and external environment and the running state of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a composition diagram of the large-capacity battery safety monitoring system of the utility model. DETAILED DESCRIPTION

[0021] The structure of the utility model will be further described in combination with the drawings and through examples. It should be noted that the examples are descriptive rather than limiting.

[0022] A large-capacity battery safety monitoring system, please see Figure 1 The main points of the invention are as follows: mainly including a main controller, a collection module, an alarm module, a positioning module, a real-time monitoring module, a battery management system (BMS), a remote information terminal module and an operation platform. The battery management system (BMS) is an existing system which is mainly used to monitor the temperature, current, voltage and other parameters inside the battery.

[0023] The main controller is the core processing unit of the large-capacity battery safety monitoring system, which is responsible for receiving data from the acquisition module, the battery management system (BMS), the positioning module, and the remote information terminal module, and coordinating the work between the modules. The main controller selects a high-performance, low-power STM32 series microprocessor based on the ARM architecture. A wide voltage input range power conversion circuit is designed to ensure that the main controller can work stably in different voltage environments. A multi-stage filter circuit is used to reduce the influence of power supply noise on the system. An overvoltage and overcurrent protection circuit is integrated to prevent damage to the main controller caused by abnormal power supply. The appropriate communication interface is selected according to the system requirements, and the corresponding interface circuit is designed. The electrical characteristics of the communication interface are ensured to meet the relevant standards, improving the reliability and stability of data transmission. Isolation technology is used to reduce interference between different communication interfaces. Enough on-chip Flash and SRAM are configured to store program code and system configuration parameters. External storage devices such as SD cards and NAND Flash are expanded to store historical data and log files. A data backup and recovery mechanism is designed to ensure data security. Reasonable PCB layout and wiring strategies are used to reduce signal crosstalk and electromagnetic radiation.

[0024] The acquisition module includes voltage sensors, current sensors, temperature sensors, etc. The sensors use types with high precision, high stability, and strong anti-interference capability to ensure the accuracy and reliability of the collected data. The voltage sensors and current sensors are placed on the main loop of the battery system output to collect the voltage and current parameters of the power battery, respectively. The temperature sensors are arranged inside the battery compartment outside the battery pack to collect the temperature parameters of the power battery. Smoke detectors, temperature detectors, and combustible gas detectors are also arranged outside the battery pack to collect the status of the battery pack outside, covering as much of the system as possible to ensure the safe operation of the battery system.

[0025] The alarm module sends out sound and light alarm signals in a timely manner when abnormal conditions are detected, notifying relevant personnel to take emergency measures. Specifically, a buzzer or a horn is used to send out a sound alarm, and an LED lamp or a flash lamp is used to send out a light signal alarm. The light alarm method is intuitive and eye-catching, and can attract people's attention at the first time.

[0026] The alarm triggering mechanism is as follows:

[0027] The alarm module triggers the alarm by receiving the alarm instruction sent by the main controller. The main controller sends the corresponding alarm instruction to the alarm module when it discovers and predicts abnormal conditions of the power battery based on the data provided by the acquisition module, the battery management system (BMS), the positioning module, and the operation platform. The alarm instruction usually contains information such as alarm type, alarm level, and abnormal parameters, so that the alarm module can respond accurately and quickly.

[0028] Alarm signal processing:

[0029] After receiving the alarm instruction, the main controller will immediately start the corresponding alarm device to alarm. At the same time, it will also record and store the alarm instruction for subsequent query and analysis.

[0030] For scenarios that need remote monitoring, the main controller can also upload alarm information to the cloud server or user terminal through the remote information terminal module, so that relevant personnel can timely understand and handle abnormal situations.

[0031] Alarm priority setting:

[0032] In order to ensure that the most important alarm information can be handled in priority in emergency situations, the system can set alarm priority. According to the severity and urgency of abnormal situations, alarm information is divided into different priority levels.

[0033] When alarming, the system will process alarms in order of priority level to ensure that the most important alarm information can be responded to in time and effectively. Alarm levels and response mechanisms are shown in the table below:

[0034]

[0035] The positioning module: adopts Beidou GPS positioning module to provide real-time position information, speed information, and vehicle speed limit of the vehicle or power battery. When overspeed occurs, the battery system sends alarm information to the user department and internal management department.

[0036] The real-time monitoring module: used to output real-time running data of the battery, through the driver display screen and the background operation monitoring system, to display the working state and environmental conditions of the power battery in real time and intuitively.

[0037] The voice module: used to prompt the locomotive driver through voice reporting of battery system fault level, fault content and treatment measures, to guide the driver's operation and improve the ability of on-site emergency disposal.

[0038] The remote information terminal module: as a data transmission and storage system, responsible for uploading the collected data to the operation platform and supporting remote monitoring and management.

[0039] The remote information terminal module realizes connection and communication with the main controller and the operation platform by integrating various communication interfaces and data processing chips. The various communication interfaces include Ethernet interface, RS485 interface, GPRS interface, etc.

[0040] The advanced network communication technology and protocol TCP / IP are used to ensure stable and reliable data transmission; meanwhile, data encryption and identity authentication and other security measures are adopted to guarantee the security of data transmission.

[0041] The operation platform is used for collecting operation data of locomotive battery replacement, outputting alarm information and operation state information.

[0042] An example of implementing power battery system temperature overhigh:

[0043] A temperature sensor is installed in the battery compartment, and the current temperature is collected by the collection module, and the temperature information is reported to the main controller.

[0044] Meanwhile, the main controller collects the cell temperature information obtained by the battery management system (BMS);

[0045] The main controller compares the temperature information in the battery compartment and the cell temperature information received, and if both temperatures exceed the normal range, according to the control strategy of the main controller, the alarm module is controlled to alarm, and the warning information is sent to the real-time monitoring module and uploaded to the operation platform.

[0046] The voice module prompts the locomotive driver through voice broadcast that the battery system temperature is overhigh, and guides the driver to check whether the ventilation and heat dissipation port is normal, if there is blockage, it needs to be removed, or other corresponding fault handling.

[0047] The sound and light alarm module: according to different temperature ranges, prompt sound is emitted rapidly or slowly, and the indicator light also flashes at different frequencies according to different temperature ranges.

[0048] The real-time monitoring module: the display screen displays the current battery system high temperature position, warning and processing flow.

[0049] The operation platform: collects the time of warning, high temperature warning content, processing means and time length, so that the technical personnel can understand the scene and make further prevention for the safety of the battery system.

[0050] Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, therefore, the scope of the utility model is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A large capacity battery safety monitoring system, characterized by: The application relates to a locomotive battery system real-time monitoring device which comprises a main controller, a collection module, an alarm module, a positioning module, a real-time monitoring module, a voice module, a battery management system (BMS), a remote information terminal module and an operation platform. The main controller is used for receiving data of the collection module, the BMS, the positioning module and the remote information terminal module and coordinating work among the modules. An output end of the collection module is connected with the main controller and is used for monitoring key parameters of a power battery system in real time, including voltage, current, temperature, smoke and light intensity. An input end of the alarm module is connected with the main controller, the alarm module adopts an audible and light alarm, is used for sending an audible and light alarm signal in time when abnormal conditions of the battery system are monitored, and informs relevant personnel to take emergency measures. An input end of the voice module is connected with the alarm module and is used for prompting a locomotive driver through voice report of a battery system fault level, fault content and treatment measures. The positioning module adopts a Beidou GPS positioning module, an output end of the positioning module is connected with the main controller, and the positioning module is used for providing real-time position information, speed information and vehicle speed limit of the vehicle or the power battery. An input end of the real-time monitoring module is connected with the main controller and the alarm module, the real-time monitoring module is used for outputting real-time operation data of the battery, and the working state and environment of the power battery are displayed in real time through a driver display screen and a background operation monitoring system. The remote information terminal module is integrated with an Ethernet interface, an RS485 interface, a GPRS interface and a data processing chip, is used for realizing connection and communication between the main controller and the operation platform, is responsible for uploading collected data to the operation platform, and supports remote monitoring and management. The operation platform is connected with the remote information terminal module and is used for collecting operation data of the locomotive battery replacement, outputting alarm information and operation state information.

2. The large capacity battery safety monitoring system of claim 1, wherein: The main controller adopts an STM32 series microprocessor based on an ARM architecture, comprises a power conversion circuit with a wide voltage input range, a multi-stage filter circuit, an overvoltage protection circuit, an overcurrent protection circuit, a communication interface, an on-chip Flash and SRAM, and an external storage device.

3. The large capacity battery safety monitoring system of claim 1, wherein: The collection module comprises a voltage sensor, a current sensor, a temperature sensor, a smoke detector, a temperature detector and a combustible gas detector; the voltage sensor and the current sensor are arranged on a main loop of external output of the battery system and are used for collecting voltage and current parameters of the power battery respectively; the temperature sensor is arranged in a battery compartment and is located outside a battery pack and is used for collecting temperature parameters of the power battery; the smoke detector, the temperature detector and the combustible gas detector are arranged outside the battery pack and are used for collecting states outside the battery pack.

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