WO2022082531A1

WO2022082531A1 - Relay working state inspection system, apparatus and method, and reverse connection detection method

Info

Publication number: WO2022082531A1
Application number: PCT/CN2020/122591
Authority: WO
Inventors: 罗乐; 刘鹏飞; 李红; 吴壬华
Original assignee: 深圳欣锐科技股份有限公司
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-04-28
Also published as: CN113544521A; CN113544521B

Abstract

A relay working state inspection system and method, and a reverse connection detection method. In the relay working state inspection system, a positive electrode of a second DC module (113) is connected to one end of a first sampling circuit module (121), one end of a first resistor (R1), and one end of a main positive relay (112); the other end of the first resistor (R1) is connected to one end of a second resistor (R2), one end of a third resistor (R3), one end of a fourth resistor (R4), and a second measurement processing element (1221); the other end of the second resistor (R2) is connected to a negative electrode of the second DC module (113), the other end of the first sampling circuit module (121), and one end of a main negative relay (114); the other end of the third resistor (R3) is connected to a positive electrode of a first DC module (111) and the other end of the main positive relay (112); the other end of the fourth resistor (R4) is connected to a negative electrode of the first DC module (111) and the other end of the main negative relay (114); and a control processing module (130) is connected to the first sampling circuit module (121), a second sampling circuit module (122), a third sampling circuit module (123), the main positive relay (112) and the main negative relay (114). The inspection system can conveniently report fault information in a timely manner, and the fault determination accuracy is improved.

Description

继电器工作状态检测***、装置、方法及反接检测方法Relay working state detection system, device, method and reverse connection detection method

技术领域technical field

本申请涉及电动汽车技术领域，尤其涉及一种继电器工作状态检测***、装置、方法及反接检测方法。The present application relates to the technical field of electric vehicles, and in particular, to a relay working state detection system, device, method, and reverse connection detection method.

背景技术Background technique

随着社会的进步、科技的发展，环境和能源问题日益突出，发展和普及电动汽车的呼声日趋高涨，国内外也已开始电动汽车的量产和销售。车载动力电池***作为电动汽车核心部件，其性能直接影响电动汽车性能和安全性。由于通过继电器的电流有时高达几百安培，在大电流和高压的作用下，继电器容易产生拉弧等现象，上述汽车的继电器如果出现故障会导致严重的后果，比如正常行驶时继电器没有正常闭合，必然会影响整车的动力性及燃油经济性，甚至不能正常行驶；而继电器触头如果烧结，不能正常断开，将在停车后造成无端耗电，浪费电能，甚至在日常维护时发生安全事故，因此对高压回路中的继电器状态的检测非常重要。目前还没有检测继电器触头状态的检测装置，为了保证车载动力电池***的安全和性能，需要实时监控继电器闭合状态信息。With the progress of society and the development of science and technology, environmental and energy problems have become increasingly prominent, and the voices for the development and popularization of electric vehicles have become increasingly louder. The mass production and sales of electric vehicles have also begun at home and abroad. As the core component of electric vehicle, the performance of vehicle power battery system directly affects the performance and safety of electric vehicle. Because the current passing through the relay is sometimes as high as several hundred amperes, under the action of large current and high voltage, the relay is prone to arcing and other phenomena. If the relay of the above-mentioned automobile fails, it will lead to serious consequences. For example, the relay is not normally closed during normal driving. It will inevitably affect the power and fuel economy of the whole vehicle, and even cannot drive normally; and if the relay contacts are sintered and cannot be disconnected normally, it will cause unwarranted power consumption after parking, waste of power, and even safety accidents during routine maintenance. , so the detection of the relay state in the high-voltage circuit is very important. At present, there is no detection device for detecting the contact state of the relay. In order to ensure the safety and performance of the vehicle power battery system, it is necessary to monitor the closed state information of the relay in real time.

发明内容SUMMARY OF THE INVENTION

本申请实施例提供一种继电器工作状态检测***、装置、方法及反接检测方法，所述继电器工作状态检测***采用多个采样电路模块，将多个采样电路模块实际采集的电压值与期待电压值进行比较，进而判断主正继电器和主负继电器的工作状态，提高故障判断准确度以及上报故障信息及时性。The embodiments of the present application provide a relay working state detection system, device, method, and reverse connection detection method. The relay working state detection system adopts multiple sampling circuit modules, and compares the voltage values actually collected by the multiple sampling circuit modules with the expected voltage. Values are compared, and then the working state of the main positive relay and the main negative relay is judged, so as to improve the accuracy of fault judgment and the timeliness of reporting fault information.

本申请实施例第一方面提供一种继电器工作状态检测***，包括第一回路、电压采样电路和控制处理模块，所述第一回路包括依次串联连接的第一DC模块、主正继电器、第二DC模块和主负继电器，所述电压采样电路包括第一采样电路模块、第二采样电路模块和第三采样电路模块，所述第二采样电路模块包括第一电阻、第二电阻、第三电阻、第四电阻以及第二测量处理元件，其中，A first aspect of the embodiments of the present application provides a relay working state detection system, including a first loop, a voltage sampling circuit, and a control processing module, where the first loop includes a first DC module, a main positive relay, a second DC module connected in series in sequence DC module and main negative relay, the voltage sampling circuit includes a first sampling circuit module, a second sampling circuit module and a third sampling circuit module, the second sampling circuit module includes a first resistor, a second resistor and a third resistor , a fourth resistor, and a second measurement processing element, wherein,

所述第二DC模块的正极连接所述第一采样电路模块的一端、所述第一电阻的一端和所述主正继电器的一端，所述第一电阻的另一端连接所述第二电阻的一端、所述第三电阻的一端、所述第四电阻的一端和所述第二测量处理元件，所述第二电阻的另一端连接所述第二DC模块的负极、所述第一采样电路模块的另一端以及所述主负继电器的一端，所述第三电阻的另一端连接所述第一DC模块的正极和所述主正继电器的另一端，所述第四电阻的另一端连接所述第一DC模块的负极和所述主负继电器的另一端，所述控制处理模块连接所述第一采样电路模块、第二采样电路模块、第三采样电路模块、主正继电器和主负继电器；The positive pole of the second DC module is connected to one end of the first sampling circuit module, one end of the first resistor and one end of the main positive relay, and the other end of the first resistor is connected to the second resistor. one end, one end of the third resistor, one end of the fourth resistor and the second measurement and processing element, the other end of the second resistor is connected to the negative electrode of the second DC module and the first sampling circuit The other end of the module and one end of the main negative relay, the other end of the third resistor is connected to the positive pole of the first DC module and the other end of the main positive relay, and the other end of the fourth resistor is connected to the The negative pole of the first DC module and the other end of the main negative relay, the control processing module is connected to the first sampling circuit module, the second sampling circuit module, the third sampling circuit module, the main positive relay and the main negative relay ;

所述第一采样电路模块、所述第二采样电路模块和所述第三采样电路模块用于采集电压值，所述控制处理模块用于采集所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号，并比较采集的电压值和根据所述第一驱动信号和所述第二驱动信号得到的期待电压值，确定所述主正继电器和所述主负继电器的工作状态，所述工作状态包括正常状态和异常状态。The first sampling circuit module, the second sampling circuit module and the third sampling circuit module are used to collect voltage values, and the control processing module is used to collect the first drive signal of the main positive relay and the The second driving signal of the main negative relay, and comparing the collected voltage value with the expected voltage value obtained according to the first driving signal and the second driving signal, to determine the operation of the main positive relay and the main negative relay The working state includes a normal state and an abnormal state.

在一个实施例中，所述第二采样电路模块还包括第五电阻、单向导通元件和外接电源，其中，In one embodiment, the second sampling circuit module further includes a fifth resistor, a unidirectional conduction element and an external power supply, wherein,

所述外接电源、所述单向导通元件和所述第五电阻依次串联后连接所述第二测量处理元件、所述第三电阻的一端和所述第四电阻的一端，其中，所述单向导通元件的正极与所述外接电源连接；The external power supply, the one-way conducting element, and the fifth resistor are connected in series to the second measurement and processing element, one end of the third resistor, and one end of the fourth resistor, wherein the single the positive pole of the conducting element is connected to the external power supply;

所述外接电源用于提供电能，所述单向导通元件用于保护所述外接电源，所述第五电阻用于保护所述第二测量处理元件以及为所述第二测量处理元件提供偏置电压。The external power supply is used for providing power, the unidirectional conduction element is used for protecting the external power supply, and the fifth resistor is used for protecting the second measurement processing element and providing bias for the second measurement processing element Voltage.

在一个实施例中，所述第一采样电路模块包括第六电阻、第七电阻和第一测量处理元件，所述第三采样电路模块包括第八电阻、第九电阻和第三测量处理元件，其中，In one embodiment, the first sampling circuit module includes a sixth resistor, a seventh resistor and a first measurement processing element, the third sampling circuit module includes an eighth resistor, a ninth resistor and a third measurement processing element, in,

所述第六电阻的一端连接所述第二DC模块的正极，所述第六电阻的另一端连接所述第七电阻的一端和所述第一测量处理元件，所述第七电阻的另一端连接所述第二DC模块的负极；One end of the sixth resistor is connected to the positive pole of the second DC module, the other end of the sixth resistor is connected to one end of the seventh resistor and the first measurement and processing element, and the other end of the seventh resistor is connected connecting the negative pole of the second DC module;

所述第八电阻的一端连接所述第一DC模块的正极，所述第八电阻的另一端连接所述第九电阻的一端和所述第三测量处理元件，所述第九电阻的另一端连接所述第一DC模块的负极；One end of the eighth resistor is connected to the positive electrode of the first DC module, the other end of the eighth resistor is connected to one end of the ninth resistor and the third measurement and processing element, and the other end of the ninth resistor is connected connecting the negative pole of the first DC module;

所述第六电阻和所述第七电阻用于分压和保护所述第一测量处理元件，所述第八电阻和所述第九电阻用于分压和保护所述第三测量处理元件。The sixth resistor and the seventh resistor are used to divide the voltage and protect the first measurement processing element, and the eighth resistor and the ninth resistor are used to divide the voltage and protect the third measurement processing element.

在一个实施例中，所述第一采样电路模块还包括第一保护电路模块，所述第二采样电路模块还包括第二保护电路模块，所述第三采样电路模块还包括第三保护电路模块，其中，In one embodiment, the first sampling circuit module further includes a first protection circuit module, the second sampling circuit module further includes a second protection circuit module, and the third sampling circuit module further includes a third protection circuit module ,in,

所述第六电阻的另一端连接所述第一保护电路模块的一端，所述第一保护电路模块的另一端连接所述第一测量处理元件，所述第八电阻的另一端连接所述第三保护电路模块的一端，所述第三保护电路模块的另一端连接所述第三测量处理元件，所述第一电阻的另一端、所述第二电阻的一端、所述第三电阻的另一端和所述第四电阻的一端连接所述第二保护电路模块的一端，所述第二保护电路模块的另一端连接所述第二测量处理元件。The other end of the sixth resistor is connected to one end of the first protection circuit module, the other end of the first protection circuit module is connected to the first measurement and processing element, and the other end of the eighth resistor is connected to the first protection circuit module. One end of the three protection circuit modules, the other end of the third protection circuit module is connected to the third measurement and processing element, the other end of the first resistor, one end of the second resistor, and the other end of the third resistor One end and one end of the fourth resistor are connected to one end of the second protection circuit module, and the other end of the second protection circuit module is connected to the second measurement processing element.

在一个实施例中，所述第一保护电路模块包括第一保护器件和第一稳压器件，所述第二保护电路模块包括第二保护器件和第二稳压器件，所述第三保护电路模块包括第三保护器件和第三稳压器件，其中，In one embodiment, the first protection circuit module includes a first protection device and a first voltage stabilization device, the second protection circuit module includes a second protection device and a second voltage stabilization device, and the third protection circuit The module includes a third protection device and a third voltage regulator, wherein,

所述第二DC模块的正极连接所述第一电阻的一端和所述第六电阻的一端，所述第一电阻的另一端连接所述第二电阻的一端、第三电阻的一端、第四电阻的一端和所述第二保护器件，所述第二保护器件连接所述第二测量处理元件和所述第二稳压器件，所述第二稳压器件连接所述第一DC模块的负极，所述第六电阻另一端连接所述第七电阻的一端和所述第一保护器件，所述第一保护器件连接所述第一测量处理元件和所述第一稳压器件，所述第一稳压器件连接所述第二DC模块的负极，所述第一DC模块的正极连接所述第八电阻的一端，所述第八电阻的另一端连接所述第九电阻的一端和所述第三保护器件，所述第三保护器件连接所述第三测量处理元件和所述第三稳压器件，所述第三稳压器件连接所述第九电阻的另一端和所述第一DC模块的负极。The positive pole of the second DC module is connected to one end of the first resistor and one end of the sixth resistor, and the other end of the first resistor is connected to one end of the second resistor, one end of the third resistor, and one end of the fourth resistor. One end of the resistor and the second protection device, the second protection device is connected to the second measurement and processing element and the second voltage regulator, and the second voltage regulator is connected to the negative electrode of the first DC module , the other end of the sixth resistor is connected to one end of the seventh resistor and the first protection device, the first protection device is connected to the first measurement processing element and the first voltage regulator device, the first protection device A voltage stabilizing device is connected to the negative electrode of the second DC module, the positive electrode of the first DC module is connected to one end of the eighth resistor, and the other end of the eighth resistor is connected to one end of the ninth resistor and the a third protection device, the third protection device is connected to the third measurement and processing element and the third voltage stabilization device, and the third voltage stabilization device is connected to the other end of the ninth resistor and the first DC Negative pole of the module.

本申请实施例第二方面提供一种继电器工作状态检测方法，应用于上述第一方面任一项继电器工作状态检测***，所述方法包括：A second aspect of the embodiments of the present application provides a method for detecting a working state of a relay, which is applied to any one of the relay working state detection systems in the first aspect. The method includes:

通过控制处理模块获取所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号；Obtain the first drive signal of the main positive relay and the second drive signal of the main negative relay through the control processing module;

根据所述第一驱动信号和所述第二驱动信号确定第一电压值集合，所述第一电压值集合为根据所述第一驱动信号和所述第二驱动信号得出的所述第一期待电压值、第二期待电压值和所述第三期待电压值的集合；A first set of voltage values is determined according to the first drive signal and the second drive signal, and the first set of voltage values is the first set of voltage values obtained from the first drive signal and the second drive signal a set of expected voltage values, a second expected voltage value, and the third expected voltage value;

通过所述第一测量处理元件、第二测量处理元件和所述第三测量处理元件获取第一实际电压值、第二实际电压值和第三实际电压值，得到第二电压值集合；Obtain a first actual voltage value, a second actual voltage value and a third actual voltage value through the first measurement processing element, the second measurement processing element and the third measurement processing element, and obtain a second voltage value set;

根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态。The working states of the main positive relay and the main negative relay are determined according to the first voltage value set and the second voltage value set.

在一个实施例中，所述根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态，包括：In one embodiment, the determining the working states of the main positive relay and the main negative relay according to the first voltage value set and the second voltage value set includes:

判断所述第一电压值集合和所述第二电压值集合的差值小于或等于预设阈值时，确定所述主正继电器和/或所述主负继电器的工作状态为正常；When judging that the difference between the first voltage value set and the second voltage value set is less than or equal to a preset threshold value, determine that the working state of the main positive relay and/or the main negative relay is normal;

判断所述第一电压值集合和所述第二电压值集合的差值大于所述预设阈值时，确定所述主正继电器和/或所述主负继电器的工作状态为异常。When it is judged that the difference between the first voltage value set and the second voltage value set is greater than the preset threshold value, it is determined that the working state of the main positive relay and/or the main negative relay is abnormal.

在一个实施例中，所述确定所述主正继电器和/或所述主负继电器的工作状态为异常之后，还包括：In one embodiment, after determining that the working state of the main positive relay and/or the main negative relay is abnormal, the method further includes:

根据所述第一实际电压值、所述第二实际电压值和所述第三实际电压值确定所述第一继电器和所述第二继电器的实际开合状态；Determine the actual opening and closing states of the first relay and the second relay according to the first actual voltage value, the second actual voltage value and the third actual voltage value;

根据所述第一驱动信号、所述第二驱动信号和所述实际开合状态确定所述主正继电器和所述主负继电器是否发生粘连或无法闭合。Whether the main positive relay and the main negative relay are stuck or cannot be closed is determined according to the first driving signal, the second driving signal and the actual opening and closing state.

在一个实施例中，根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态之后，还包括：In one embodiment, after determining the working states of the main positive relay and the main negative relay according to the first voltage value set and the second voltage value set, the method further includes:

若确定所述主正继电器和/或所述主负继电器的工作状态为异常时，输出提示消息。If it is determined that the working state of the main positive relay and/or the main negative relay is abnormal, a prompt message is output.

本申请实施例第三方面提供反接检测方法，应用于上述第一方面任一项所述的继电器工作状态检测***，所述方法包括：A third aspect of the embodiments of the present application provides a reverse connection detection method, which is applied to the relay working state detection system according to any one of the above-mentioned first aspects, and the method includes:

检测所述主负继电器的驱动信号；detecting the driving signal of the main negative relay;

当所述主负继电器无驱动信号时，所述第二测量处理元件采集第一电压值；When the main negative relay has no driving signal, the second measurement and processing element collects the first voltage value;

当所述主负继电器有驱动信号时，所述第二测量处理元件采集第二电压值；When the main negative relay has a drive signal, the second measurement and processing element collects a second voltage value;

当所述第二电压值小于所述第一电压值时，确定所述第一DC模块正负极反接。When the second voltage value is smaller than the first voltage value, it is determined that the positive and negative electrodes of the first DC module are reversely connected.

在本申请中，继电器工作状态检测***，包括第一回路、电压采样电路和控制处理模块，第一回路包括依次串联连接的第一DC模块、主正继电器、第二DC模块和主负继电器，电压采样电路包括第一采样电路模块、第二采样电路模块和第三采样电路模块，第二采样电路模块包括第一电阻、第二电阻、第三电阻、第四电阻以及第二测量处理元件，其中，第二DC模块的正极连接第一采样电路模块的一端、第一电阻的一端和主正继电器的一端，第一电阻的另一端连接第二电阻的一端、第三电阻的一端、第四电阻的一端和第二测量处理元件，第二电阻的另一端连接第二DC模块的负极、第一采样电路模块的另一端以及主负继电器的一端，第三电阻的另一端连接第一DC模块的正极和主正继电器的另一端，第四电阻的另一端连接第一DC模块的负极和主负继电器的另一端，控制处理模块连接第一采样电路模块、第二采样电路模块、第三采样电路模块、主正继电器和主负继电器；第一采样电路模块、第二采样电路模块和第三采样电路模块用于采集电压值，控制处理模块用于采集主正继电器的第一驱动信号和主负继电器的第二驱动信号，并比较采集的电压值和根据第一驱动信号和第二驱动信号得到的期待电压值，确定主正继电器和主负继电器的工作状态，工作状态包括正常状态和异常状态。可见，本申请中继电器工作状态检测***通过第一采样电路模块、第二采样电路模块和第三采样电路采集实际电压值，再根据主正继电器的第一驱动信号和主负继电器的第二驱动信号得到期待电压值，将实际电压值和期待电压值进行比较，进而判断主正继电器和主负继电器的工作状态，工作异常时，根据实际电压值确定主正继电器和主负继电器的开合状态，进而根据第一驱动信号、第二驱动信号和开合状态判断故障信息，提高了故障判断准确度以及及时上报故障信息。In this application, the relay working state detection system includes a first loop, a voltage sampling circuit and a control processing module, the first loop includes a first DC module, a main positive relay, a second DC module and a main negative relay connected in series in sequence, The voltage sampling circuit includes a first sampling circuit module, a second sampling circuit module and a third sampling circuit module, the second sampling circuit module includes a first resistor, a second resistor, a third resistor, a fourth resistor and a second measurement processing element, The positive electrode of the second DC module is connected to one end of the first sampling circuit module, one end of the first resistor and one end of the main positive relay, and the other end of the first resistor is connected to one end of the second resistor, one end of the third resistor, and one end of the fourth resistor. One end of the resistor and the second measurement and processing element, the other end of the second resistor is connected to the negative electrode of the second DC module, the other end of the first sampling circuit module and one end of the main negative relay, the other end of the third resistor is connected to the first DC module The other end of the positive electrode and the main positive relay, the other end of the fourth resistor is connected to the negative electrode of the first DC module and the other end of the main negative relay, and the control processing module is connected to the first sampling circuit module, the second sampling circuit module, and the third sampling circuit module. The circuit module, the main positive relay and the main negative relay; the first sampling circuit module, the second sampling circuit module and the third sampling circuit module are used to collect the voltage value, and the control processing module is used to collect the first driving signal of the main positive relay and the main The second driving signal of the negative relay, and comparing the collected voltage value with the expected voltage value obtained according to the first driving signal and the second driving signal, to determine the working status of the main positive relay and the main negative relay, the working status includes normal status and abnormal status state. It can be seen that the relay working state detection system in this application collects the actual voltage value through the first sampling circuit module, the second sampling circuit module and the third sampling circuit, and then according to the first driving signal of the main positive relay and the second driving signal of the main negative relay The signal obtains the expected voltage value, compares the actual voltage value with the expected voltage value, and then judges the working state of the main positive relay and the main negative relay. Then, the fault information is judged according to the first driving signal, the second driving signal and the opening and closing state, which improves the fault judgment accuracy and reports the fault information in time.

本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。These and other aspects of the present application will be more clearly understood in the description of the following embodiments.

附图说明Description of drawings

为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所涉及到的附图作简单地介绍。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the accompanying drawings involved in the embodiments or the background technology of the present application will be briefly introduced below.

下面将对本申请实施例所涉及到的附图作简单地介绍。The accompanying drawings involved in the embodiments of the present application will be briefly introduced below.

图1是本申请实施例提供的一种继电器工作状态检测***的示意图；1 is a schematic diagram of a relay working state detection system provided by an embodiment of the present application;

图2是本申请实施例提供的另一种继电器工作状态检测***的示意图；2 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图3是本申请实施例提供的另一种继电器工作状态检测***的示意图；3 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图4是本申请实施例提供的另一种继电器工作状态检测***的示意图；4 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图5是本申请实施例提供的另一种继电器工作状态检测***的示意图；5 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图6是本申请实施例提供的另一种继电器工作状态检测***的示意图；6 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图7是本申请实施例提供的另一种继电器工作状态检测***的示意图；7 is a schematic diagram of another relay working state detection system provided by an embodiment of the present application;

图8是本申请实施例提供的一种继电器工作状态检测方法的流程示意图；8 is a schematic flowchart of a method for detecting a working state of a relay provided by an embodiment of the present application;

图9是本申请实施例提供的一种反接检测方法的流程示意图。FIG. 9 is a schematic flowchart of a reverse connection detection method provided by an embodiment of the present application.

具体实施方式Detailed ways

为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

以下分别进行详细说明。Each of them will be described in detail below.

本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

继电器是一种电控制器件。它具有控制***(又称输入回路)和被控制***(又称输出回路)之间的互动关系。通常应用于自动化的控制电路中，它实际上是用小电流去控制大电流运作的一种“自动开关”。故在电路中起着自动调节、安全保护、转换电路等作用。车载动力电池***作为电动汽车核心部件，其性能直接影响电动汽车性能和安全性。为了保证车载动力电池***的安全和性能，减少汽车的安全隐患，在汽车继电器出现故障时，需要及时判断继电器状态以及位置信息，而现有继电器检测设备，故障定位效率和准确度低，且不能及时上报故障信息。A relay is an electrical control device. It has an interactive relationship between the control system (also known as the input loop) and the controlled system (also known as the output loop). Usually used in automated control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. As the core component of electric vehicle, the performance of vehicle power battery system directly affects the performance and safety of electric vehicle. In order to ensure the safety and performance of the vehicle power battery system and reduce the safety hazards of the vehicle, when the vehicle relay fails, it is necessary to judge the relay status and location information in time. However, the existing relay detection equipment has low fault location efficiency and accuracy, and cannot Report fault information in time.

针对上述问题，本申请实施例提出一种继电器工作状态检测***及检测方法，所述继电器工作状态检测***，包括第一回路、电压采样电路和控制处理模块，所述第一回路包括依次串联连接的第一DC模块、主正继电器、第二DC模块和主负继电器，所述电压采样电路包括第一采样电路模块、第二采样电路模块和第三采样电路模块，所述第二采样电路模块包括第一电阻、第二电阻、第三电阻、第四电阻以及第二测量处理元件，其中，所述第二DC模块的正极连接所述第一采样电路模块的一端、所述第一电阻的一端和所述主正继电器的一端，所述第一电阻的另一端连接所述第二电阻的一端、所述第三电阻的一端、所述第四电阻的一端和所述第二测量处理元件，所述第二电阻的另一端连接所述第二DC模块的负极、所述第一采样电路模块的另一端以及所述主负继电器的一端，所述第三电阻的另一端连接所述第一DC模块的正极和所述主正继电器的另一端，所述第四电阻的另一端连接所述第一DC模块的负极和所述主负继电器的另一端，所述控制处理模块连接所述第一采样电路模块、第二采样电路模块、第三采样电路模块、主正继电器和主负继电器；所述第一采样电路模块、所述第二采样电路模块和所述第三采样电路模块用于采集电压值，所述控制处理模块用于采集所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号，并比较采集的电压值和根据所述第一驱动信号和所述第二驱动信号得到的期待电压值，确定所述主正继电器和所述主负继电器的工作状态，所述工作状态包括正常状态和异常状态。In view of the above problems, an embodiment of the present application proposes a relay working state detection system and a detection method. The relay working state detection system includes a first loop, a voltage sampling circuit, and a control processing module. The first loop includes serially connected The first DC module, the main positive relay, the second DC module and the main negative relay, the voltage sampling circuit includes a first sampling circuit module, a second sampling circuit module and a third sampling circuit module, the second sampling circuit module It includes a first resistor, a second resistor, a third resistor, a fourth resistor and a second measurement processing element, wherein the positive pole of the second DC module is connected to one end of the first sampling circuit module, and the One end and one end of the main positive relay, the other end of the first resistor is connected to one end of the second resistor, one end of the third resistor, one end of the fourth resistor and the second measurement and processing element , the other end of the second resistor is connected to the negative electrode of the second DC module, the other end of the first sampling circuit module and one end of the main negative relay, and the other end of the third resistor is connected to the first The positive pole of a DC module and the other end of the main positive relay, the other end of the fourth resistor is connected to the negative pole of the first DC module and the other end of the main negative relay, and the control processing module is connected to the The first sampling circuit module, the second sampling circuit module, the third sampling circuit module, the main positive relay and the main negative relay; the first sampling circuit module, the second sampling circuit module and the third sampling circuit module are used for In order to collect the voltage value, the control processing module is used to collect the first drive signal of the main positive relay and the second drive signal of the main negative relay, and compare the collected voltage value with the first drive signal and The expected voltage value obtained from the second drive signal determines the working states of the main positive relay and the main negative relay, and the working states include normal states and abnormal states.

可见，本申请中继电器工作状态检测***通过第一采样电路模块、第二采样电路模块和第三采样电路采集实际电压值，再根据主正继电器的第一驱动信号和主负继电器的第二驱动信号得到期待电压值，将实际电压值和期待电压值进行比较，进而当判断主正继电器和主负继电器的工作状态工作异常时，根据实际电压值确定主正继电器和主负继电器的开合状态，进而根据第一驱动信号、第二驱动信号和开合状态判断故障信息，提高了故障判断准确度以及及时上报故障信息。It can be seen that the relay working state detection system in this application collects the actual voltage value through the first sampling circuit module, the second sampling circuit module and the third sampling circuit, and then according to the first driving signal of the main positive relay and the second driving signal of the main negative relay The signal obtains the expected voltage value, compares the actual voltage value with the expected voltage value, and then determines the opening and closing status of the main positive relay and the main negative relay according to the actual voltage value when it is judged that the working state of the main positive relay and the main negative relay is abnormal. Then, the fault information is judged according to the first driving signal, the second driving signal and the opening and closing state, which improves the fault judgment accuracy and reports the fault information in time.

下面结合附图对本申请实施例进行介绍。The embodiments of the present application will be introduced below with reference to the accompanying drawings.

请参阅图1，图1是本申请实施例提供的一种继电器工作状态检测***的示意图，该继电器工作状态检测***100包括第一回路、电压采样电路120和控制处理模块130，所述第一回路包括依次串联连接的第一DC模块111、主正继电器112、第二DC模块113和主负继电器114，所述电压采样电路120包括第一采样电路模块121、第二采样电路模块122和第三采样电路模块123，所述第二采样电路模块122包括第一电阻R1、第二电阻R2、第三电阻R3和第四电阻R4以及第二测量处理元件1221，其中，Please refer to FIG. 1. FIG. 1 is a schematic diagram of a relay working state detection system provided by an embodiment of the present application. The relay working state detection system 100 includes a first loop, a voltage sampling circuit 120, and a control processing module 130. The first circuit The loop includes a first DC module 111, a main positive relay 112, a second DC module 113 and a main negative relay 114 connected in series in sequence, and the voltage sampling circuit 120 includes a first sampling circuit module 121, a second sampling circuit module 122 and a first sampling circuit module 122. Three sampling circuit modules 123, the second sampling circuit module 122 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a second measurement processing element 1221, wherein,

所述第二DC模块113的正极连接所述第一采样电路模块121的一端、所述第一电阻R1的一端和所述主正继电器112的一端，所述第一电阻R1的另一端连接所述第二电阻R2的一端、所述第三电阻R3的一端、所述第四电阻R4的一端和所述第二测量处理元件1221，所述第二电阻R2的另一端连接所述第二DC模块113的负极、所述第一采样电路模块121的另一端以及所述主负继电器114的一端，所述第三电阻R3的另一端连接所述第一DC模块111的正极和所述主正继电器112的另一端，所述第四电阻R4的另一端连接所述第一DC模块111的负极和所述主负继电器114的另一端，所述控制处理模块130连接所述第一采样电路模块121、第二采样电路模块122、第三采样电路模块123、主正继电器112和主负继电器114；The positive pole of the second DC module 113 is connected to one end of the first sampling circuit module 121, one end of the first resistor R1 and one end of the main positive relay 112, and the other end of the first resistor R1 is connected to the One end of the second resistor R2, one end of the third resistor R3, one end of the fourth resistor R4 and the second measurement processing element 1221, the other end of the second resistor R2 is connected to the second DC The negative pole of the module 113, the other end of the first sampling circuit module 121 and one end of the main negative relay 114, the other end of the third resistor R3 is connected to the positive pole of the first DC module 111 and the main positive pole The other end of the relay 112, the other end of the fourth resistor R4 is connected to the negative electrode of the first DC module 111 and the other end of the main negative relay 114, and the control processing module 130 is connected to the first sampling circuit module. 121, the second sampling circuit module 122, the third sampling circuit module 123, the main positive relay 112 and the main negative relay 114;

所述第一采样电路模块121、所述第二采样电路模块122和所述第三采样电路模块123用于采集电压值，所述控制处理模块130用于采集所述主正继电器112的第一驱动信号和所述主负继电器114的第二驱动信号，并比较采集的电压值和根据所述第一驱动信号和所述第二驱动信号得到的期待电压值，确定所述主正继电器112和所述主负继电器114的工作状态，所述工作状态包括正常状态和异常状态。The first sampling circuit module 121 , the second sampling circuit module 122 and the third sampling circuit module 123 are used to collect voltage values, and the control processing module 130 is used to collect the first value of the main positive relay 112 . drive signal and the second drive signal of the main negative relay 114, and compare the collected voltage value with the expected voltage value obtained from the first drive signal and the second drive signal to determine the main positive relay 112 and the second drive signal. The working state of the main negative relay 114, the working state includes a normal state and an abnormal state.

其中，所述第一DC模块111可以包括动力电池、蓄电池、PDC、集成式电机控制等，所述第二DC模块113可以包括汽车OBC、整车控制器、快充接口、加热器和DCDC等；所述第二测量处理元件1221可以是AD_SMP，SMP是指在一个计算机上汇集了一组处理器。采集的电压值包括所述第一采样电路模块121、所述第二采样电路模块122和所述第三采样电路模块123采集的第一实际电压值、第二实际电压值和第三实际电压值，所述期待电压值包括根据第一驱动信号和第二驱动信号获取第一期待电压值、第二期待电压值和第三期待电压值。Wherein, the first DC module 111 may include power battery, storage battery, PDC, integrated motor control, etc., and the second DC module 113 may include automobile OBC, vehicle controller, fast charging interface, heater, DCDC, etc. ; The second measurement processing element 1221 may be AD_SMP, and SMP refers to a group of processors assembled on a computer. The collected voltage value includes the first actual voltage value, the second actual voltage value and the third actual voltage value collected by the first sampling circuit module 121 , the second sampling circuit module 122 and the third sampling circuit module 123 , the expected voltage value includes obtaining a first expected voltage value, a second expected voltage value and a third expected voltage value according to the first driving signal and the second driving signal.

其中，所述第一DC模块111的正极依次连接所述主正继电器112和所述第二DC模块113的正极，所述第一DC模块111的负极依次连接所述主负继电器114和所述第二DC模块113的负极。The positive pole of the first DC module 111 is connected to the main positive relay 112 and the positive pole of the second DC module 113 in sequence, and the negative pole of the first DC module 111 is sequentially connected to the main negative relay 114 and the positive pole of the second DC module 113. The negative pole of the second DC module 113 .

具体实现中，所述控制处理模块130从所述第一采样电路模块121、所述第二采样电路模块122和所述第三采样电路模块123获取第一实际电压值、第二实际电压值和第三实际电压值，以及获取此时主正继电器112的第一驱动信号和主负继电器114的第二驱动信号，以及根据第一驱动信号和第二驱动信号获取第一期待电压值、第二期待电压值和第三期待电压值，以及将第一实际电压值、第二实际电压值和第三实际电压值分别与第一期待电压值、第二期待电压值和第三期待电压进行比较，若得到的差值小于或等于预设阈值时，判定所述主正继电器112和所述主负继电器114工作正常；若得到的差值大于预设阈值时，所述控制处理模块130确定主正继电器112和主负继电器114的工作为异常状态，以及在检测到主正继电器112或主负继电器114为异常状态时，根据主正继电器112的第一驱动信号和主负继电器114的第二驱动信号分别确定主负继电器和主正继电器的期待开合状态；然后根据所述第一实际电压值、第二实际电压值和第三实际电压值判断继电器的实际开合状态，根据期待开合状态和实际开合状态确定所述主正继电器和所述主负继电器的具体故障信息。In specific implementation, the control processing module 130 obtains the first actual voltage value, the second actual voltage value and the The third actual voltage value, and obtaining the first driving signal of the main positive relay 112 and the second driving signal of the main negative relay 114 at this time, and obtaining the first expected voltage value, the second driving signal according to the first driving signal and the second driving signal an expected voltage value and a third expected voltage value, and comparing the first actual voltage value, the second actual voltage value and the third actual voltage value with the first expected voltage value, the second expected voltage value and the third expected voltage, respectively, If the obtained difference is less than or equal to the preset threshold, it is determined that the main positive relay 112 and the main negative relay 114 work normally; if the obtained difference is greater than the preset threshold, the control processing module 130 determines that the main positive relay The operation of the relay 112 and the main negative relay 114 is in an abnormal state, and when it is detected that the main positive relay 112 or the main negative relay 114 is in an abnormal state, according to the first driving signal of the main positive relay 112 and the second driving of the main negative relay 114 The signal determines the expected opening and closing states of the main negative relay and the main positive relay respectively; then according to the first actual voltage value, the second actual voltage value and the third actual voltage value, the actual opening and closing state of the relay is judged, and the actual opening and closing state of the relay is determined according to the expected opening and closing state. and the actual opening and closing state to determine the specific fault information of the main positive relay and the main negative relay.

具体实现中，所述继电器工作状态检测***中由所述第二DC模块提供电压时，可以只通过所述第一采样电路模块和所述第二采样电路模块采集数据进行处理，确定所述主正继电器和所述主负继电器的开合状态，进而判断所述主正继电器和所述主负继电器的异常状态。所述继电器工作状态检测***中由所述第一DC模块提供电压时，可以只通过所述第二采样电路模块和所述第三采样电路模块采集数据进行处理，确定所述主正继电器和所述主负继电器的开合状态。In a specific implementation, when the second DC module provides the voltage in the relay working state detection system, only the first sampling circuit module and the second sampling circuit module can collect data for processing, and determine the main The opening and closing states of the positive relay and the main negative relay, and then determine the abnormal state of the main positive relay and the main negative relay. In the relay working state detection system, when the voltage is provided by the first DC module, the data can be collected and processed only by the second sampling circuit module and the third sampling circuit module to determine the main positive relay and all Describe the opening and closing state of the main negative relay.

可见，在本示例中，继电器工作状态检测***通过采集的实际电压值，再根据期待电压值，将实际电压值和期待电压值进行比较，进而判断主正继电器112和主负继电器114的工作状态，提高故障判断准确度以及上报故障信息的及时性。It can be seen that in this example, the relay working state detection system compares the actual voltage value with the expected voltage value according to the collected actual voltage value, and then judges the working state of the main positive relay 112 and the main negative relay 114 , to improve the accuracy of fault judgment and the timeliness of reporting fault information.

作为一种可能的实施方式，请参阅图2，图2是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述第二采样电路模块122还包括第五电阻R5、单向导通元件D1和外接电源1222，其中，As a possible implementation, please refer to FIG. 2 , which is a schematic diagram of another relay working state detection system provided by an embodiment of the present application, the second sampling circuit module 122 further includes a fifth resistor R5, a unidirectional guide pass element D1 and external power supply 1222, wherein,

所述外接电源1222、所述单向导通元件D1和所述第五电阻R5依次串联后连接所述第二测量处理元件1221、所述第三电阻R3的一端和所述第四电阻R4的一端，其中，所述单向导通元件的正极与所述外接电源连接；The external power supply 1222, the one-way conduction element D1 and the fifth resistor R5 are connected in series in sequence and then connected to the second measurement and processing element 1221, one end of the third resistor R3 and one end of the fourth resistor R4 , wherein the positive pole of the one-way conducting element is connected to the external power supply;

所述外接电源1222用于提供电能，所述单向导通元件D1用于保护所述外接电源，所述第五电阻R5用于保护所述第二测量处理元件1221以及为所述第二测量处理元件1221提供偏置电压。The external power supply 1222 is used to provide electrical energy, the one-way conduction element D1 is used to protect the external power supply, and the fifth resistor R5 is used to protect the second measurement processing element 1221 and for the second measurement processing Element 1221 provides the bias voltage.

其中，所述外接电源1222通过所述第五电阻R5为所述第二测量处理元件提供偏置电压。通过单向导通元件D1可以避免因电路电压过高使外接电源1222损坏以及防止所述第二测量处理元件1221测量电压的准确度受到影响。The external power supply 1222 provides a bias voltage for the second measurement processing element through the fifth resistor R5. The unidirectional conduction element D1 can prevent the external power supply 1222 from being damaged due to an excessively high circuit voltage and prevent the accuracy of the voltage measured by the second measurement processing element 1221 from being affected.

具体实现中，所述继电器工作状态检测***还可以用于反接检测。例如可以检测所述第一DC模块111是否正负反接，所述外接电源1222的电流经第五电阻R5为所述第二测量处理元件1221提供一个偏置电压，此时，当所述第一DC模块111正接时，所述第二测量处理元件1221在所述主负继电器114断开时采集的电压值小于所述主负继电器114闭合时采集的电压值；当所述第一DC模块111反接时，所述第二测量元件1221在所述主负继电器114闭合时采集的电压值小于所述第二测量元件1221在所述主负继电器114断开时采集的电压值。In a specific implementation, the relay working state detection system can also be used for reverse connection detection. For example, it can be detected whether the positive and negative connections of the first DC module 111 are reversed, and the current of the external power supply 1222 provides a bias voltage for the second measurement and processing element 1221 through the fifth resistor R5. When a DC module 111 is connected, the voltage value collected by the second measurement and processing element 1221 when the main negative relay 114 is disconnected is smaller than the voltage value collected when the main negative relay 114 is closed; when the first DC module When 111 is reversely connected, the voltage value collected by the second measuring element 1221 when the main negative relay 114 is closed is smaller than the voltage value collected by the second measuring element 1221 when the main negative relay 114 is disconnected.

可见，本示例中，继电器工作状态检测***通过在所述第二采样电路模块122设置外接电源1222，可以判断主正继电器112和主负继电器114的工作状态以及所述第一DC模块111是否正负反接，提高故障判断准确度。It can be seen that in this example, the relay working state detection system can determine the working state of the main positive relay 112 and the main negative relay 114 and whether the first DC module 111 is positive by setting the external power supply 1222 in the second sampling circuit module 122 Negative reverse connection to improve the accuracy of fault judgment.

作为一种可能的实施方式，请参阅图3，图3是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述第一采样电路模块121包括第六电阻R6、第七电阻R7和第一测量处理元件1211，所述第三采样电路模块123包括第八电阻R8、第九电阻R9和第三测量处理元件1231，其中，As a possible implementation manner, please refer to FIG. 3 , which is a schematic diagram of another relay working state detection system provided by an embodiment of the present application. The first sampling circuit module 121 includes a sixth resistor R6 and a seventh resistor R7 and the first measurement processing element 1211, the third sampling circuit module 123 includes an eighth resistor R8, a ninth resistor R9 and a third measurement processing element 1231, wherein,

所述第六电阻R6的一端连接所述第二DC模块113的正极，所述第六电阻R6的另一端连接所述第七电阻R7的一端和所述第一测量处理元件1211，所述第七电阻R7的另一端连接所述第二DC模块113的负极，所述第八电阻R8的一端连接所述第一DC模块111的正极，所述第八电阻R8的另一端连接所述第九电阻R9的一端和所述第三测量处理元件1231，所述第九电阻R9的另一端连接所述第一DC模块111的负极；One end of the sixth resistor R6 is connected to the positive electrode of the second DC module 113, the other end of the sixth resistor R6 is connected to one end of the seventh resistor R7 and the first measurement and processing element 1211, and the first The other end of the seventh resistor R7 is connected to the negative electrode of the second DC module 113 , one end of the eighth resistor R8 is connected to the positive electrode of the first DC module 111 , and the other end of the eighth resistor R8 is connected to the ninth resistor R8 One end of the resistor R9 and the third measurement processing element 1231, and the other end of the ninth resistor R9 is connected to the negative electrode of the first DC module 111;

所述第六电阻R6和所述第七电阻R7用于分压和保护所述第一测量处理元件1211，所述第八电阻R8和所述第九电阻R9用于分压和保护所述第三测量处理元件1231。The sixth resistor R6 and the seventh resistor R7 are used to divide the voltage and protect the first measurement processing element 1211, and the eighth resistor R8 and the ninth resistor R9 are used to divide the voltage and protect the first measurement processing element 1211. Three measurement processing elements 1231 .

其中，所述第六电阻R6、第七电阻R7、第八电阻R8和第九电阻R9为分压器件，还用于使第一测量处理元件1211和第三测量处理元件1231分别测量到不同的实际电压值，进而判断主正继电器112和主负继电器114的工作状态。The sixth resistor R6, the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 are voltage dividing devices, and are also used to make the first measurement processing element 1211 and the third measurement processing element 1231 measure different The actual voltage value is used to determine the working state of the main positive relay 112 and the main negative relay 114 .

可见，本示例中，继电器工作状态检测***通过设置多个电阻实现分压，在主正继电器112和主负继电器114的不同状态下能够采集到的实际电压值，进而根据实际电压值判断主正继电器112和主负继电器114的工作状态，且电路简单，成本低。It can be seen that in this example, the relay working state detection system realizes the voltage division by setting multiple resistors, and the actual voltage values that can be collected in different states of the main positive relay 112 and the main negative relay 114, and then judge the main positive relay according to the actual voltage value. The working state of the relay 112 and the main negative relay 114, the circuit is simple, and the cost is low.

作为一种可能的实施方式，请参阅图4，图4是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述第一采样电路模块121还包括第一保护电路模块1212，所述第二采样电路模块122还包括第二保护电路模块1223，所述第三采样电路模块123还包括第三保护电路模块1232，其中，As a possible implementation manner, please refer to FIG. 4 , which is a schematic diagram of another relay working state detection system provided by an embodiment of the present application. The first sampling circuit module 121 further includes a first protection circuit module 1212 . The second sampling circuit module 122 further includes a second protection circuit module 1223, and the third sampling circuit module 123 further includes a third protection circuit module 1232, wherein,

所述第六电阻R6的一端连接所述第一保护电路模块1212的一端，所述第一保护电路模块1212的另一端连接所述第一测量处理元件1211，所述第八电阻R8的一端连接所述第三保护电路模块1232的一端，所述第三保护电路模块1232的另一端连接所述第三测量处理元件1231，所述第一电阻R1的另一端、所述第二电阻R2的一端、所述第三电阻R3的一端和所述第四电阻R4的一端连接所述第二保护电路模块1223的一端，所述第二保护电路模块1223的另一端连接所述第二测量处理元件1221。One end of the sixth resistor R6 is connected to one end of the first protection circuit module 1212, the other end of the first protection circuit module 1212 is connected to the first measurement and processing element 1211, and one end of the eighth resistor R8 is connected to One end of the third protection circuit module 1232, the other end of the third protection circuit module 1232 is connected to the third measurement processing element 1231, the other end of the first resistor R1, and one end of the second resistor R2 , One end of the third resistor R3 and one end of the fourth resistor R4 are connected to one end of the second protection circuit module 1223, and the other end of the second protection circuit module 1223 is connected to the second measurement processing element 1221 .

其中，所述第一保护电路模块1212、所述第二保护电路模块1223和所述第三保护电路模块1232用于保护所述第一测量处理元件1211、所述第二测量处理元件1221和所述第三测量处理元件1231。The first protection circuit module 1212, the second protection circuit module 1223 and the third protection circuit module 1232 are used to protect the first measurement processing element 1211, the second measurement processing element 1221 and all The third measurement processing element 1231 is described.

其中，所述第一保护电路模块1212、第二保护电路模块1223和第三保护电路模块1232的电路设计可以是相同的限幅电路，也可以是不同的限幅电路。The circuit designs of the first protection circuit module 1212 , the second protection circuit module 1223 and the third protection circuit module 1232 may be the same limiter circuit, or may be different limiter circuits.

可见，本示例中，继电器工作状态检测***通过设置第一保护电路模块1212、第二保护电路模块1223和第三保护电路模块1232可以保护所述第一测量处理元件1211、第二测量处理元件1221和第三测量处理元件1231，避免因电压过高或反接使第一测量处理元件1211、第二测量处理元件1221和第三测量处理元件1231损坏，提高故障判断的准确性。It can be seen that in this example, the relay working state detection system can protect the first measurement processing element 1211 and the second measurement processing element 1221 by setting the first protection circuit module 1212, the second protection circuit module 1223 and the third protection circuit module 1232 and the third measurement and processing element 1231, to avoid damage to the first measurement and processing element 1211, the second measurement and processing element 1221 and the third measurement and processing element 1231 due to excessive voltage or reverse connection, and improve the accuracy of fault judgment.

作为一种可能的实施方式，请参阅图5，图5是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述第一保护电路模块1212包括第一保护器件P1和第一稳压器件Q1，所述第二保护电路模块1223包括第二保护器件P2和第二稳压器件Q2，所述第三保护电路模块1232包括第三保护器件P3和第三稳压器件Q3，其中，As a possible implementation, please refer to FIG. 5 , which is a schematic diagram of another relay working state detection system provided by an embodiment of the present application. The first protection circuit module 1212 includes a first protection device P1 and a first protection device P1 and a first protection device P1. Voltage stabilization device Q1, the second protection circuit module 1223 includes a second protection device P2 and a second voltage stabilization device Q2, the third protection circuit module 1232 includes a third protection device P3 and a third voltage stabilization device Q3, wherein ,

所述第二DC模块113的正极连接所述第一电阻R1的一端和所述第六电阻R6的一端，所述第一电阻R1的另一端连接所述第二电阻R2的一端、第三电阻R3的一端、第四电阻R4的一端和所述第二保护器件P2，所述第二保护器件P2连接所述第二测量处理元件1221和所述第二稳压器件Q2，所述第二稳压器件Q2连接所述第一DC模块111的负极，所述第六电阻R6另一端连接所述第七电阻R7的一端和所述第一保护器件P1，所述第一保护器件P1连接所述第一测量处理元件1211和所述第一稳压器件Q1，所述第一稳压器件Q1连接所述第二DC模块113的负极，所述第一DC模块111的正极连接所述第八电阻R8的一端，所述第八电阻R8的另一端连接所述第九电阻R9的一端和所述第三保护器件P3，所述第三保护器件P3连接所述第三测量处理元件1231和所述第三稳压器件Q3，所述第三稳压器件Q3连接所述第九电阻R9的另一端和所述第一DC模块111的负极。The anode of the second DC module 113 is connected to one end of the first resistor R1 and one end of the sixth resistor R6, and the other end of the first resistor R1 is connected to one end of the second resistor R2 and the third resistor. One end of R3, one end of the fourth resistor R4 and the second protection device P2, the second protection device P2 is connected to the second measurement processing element 1221 and the second voltage regulator Q2, the second voltage regulator The voltage device Q2 is connected to the negative electrode of the first DC module 111, the other end of the sixth resistor R6 is connected to one end of the seventh resistor R7 and the first protection device P1, and the first protection device P1 is connected to the The first measurement and processing element 1211 and the first voltage stabilization device Q1, the first voltage stabilization device Q1 is connected to the negative electrode of the second DC module 113, and the positive electrode of the first DC module 111 is connected to the eighth resistor One end of R8, the other end of the eighth resistor R8 is connected to one end of the ninth resistor R9 and the third protection device P3, the third protection device P3 is connected to the third measurement processing element 1231 and the The third voltage stabilization device Q3 is connected to the other end of the ninth resistor R9 and the negative electrode of the first DC module 111 .

其中，第一保护电路模块1212包括第一保护器件P1和第一稳压器件Q1，第二保护电路模块1212包括第二保护器件P2和第二稳压器件Q2，第三保护电路模块1212包括第三保护器件P3和第三稳压器件Q3，所述第一稳压器件Q1、第二稳压器件Q2和第三稳压器件Q3可以为稳压二极管或稳压芯片等，所述第一保护器件P1、第二保护器件P2和第三保护器件P3可以包括限流电阻等，第一稳压器件Q1、第二稳压器件Q2和第三稳压器件Q3分别在第一保护电路模块1212、第二保护电路模块1223和第三保护电路模块1232中为反向偏置，第一稳压器件Q1与第一保护器件P1串联后再与检测器件520并联，当电路电压上升时，使第一测量处理元件1211、第二测量处理元件1221和第三测量处理元件1231的测量点的电压基本保持不变，从而保护电路。The first protection circuit module 1212 includes a first protection device P1 and a first voltage regulator device Q1, the second protection circuit module 1212 includes a second protection device P2 and a second voltage regulator device Q2, and the third protection circuit module 1212 includes a first protection circuit module 1212. There are three protection devices P3 and third voltage regulator devices Q3. The first voltage regulator device Q1, the second voltage regulator device Q2 and the third voltage regulator device Q3 can be voltage regulator diodes or voltage regulator chips. The device P1, the second protection device P2, and the third protection device P3 may include current limiting resistors, etc. The first voltage regulator device Q1, the second voltage regulator device Q2, and the third voltage regulator device Q3 are respectively connected to the first protection circuit module 1212, The second protection circuit module 1223 and the third protection circuit module 1232 are reverse biased. The first voltage stabilization device Q1 is connected in series with the first protection device P1 and then connected in parallel with the detection device 520. The voltages of the measurement points of the measurement processing element 1211, the second measurement processing element 1221, and the third measurement processing element 1231 remain substantially unchanged, thereby protecting the circuit.

可见，本示例中，继电器工作状态检测***通过第一保护器件P1和第一稳压器件Q1、第二保护器件P2和第二稳压器件Q2以及第三保护器件P3和第三稳压器件Q3进行电路保护，避免因电压过高或反接引起第一测量处理元件1211、第二测量处理元件1221和第三测量处理元件1231损坏，提高电路安全性和故障判断的准确性。It can be seen that in this example, the relay working state detection system passes through the first protection device P1 and the first voltage regulator Q1, the second protection device P2 and the second voltage regulator Q2, and the third protection device P3 and the third voltage regulator Q3 Perform circuit protection to avoid damage to the first measurement and processing element 1211 , the second measurement and processing element 1221 and the third measurement and processing element 1231 due to excessive voltage or reverse connection, thereby improving circuit safety and the accuracy of fault judgment.

作为一种可能的实施方式，所述第一保护器件、所述第二保护器件和所述第三保护器件分别为第一保护电阻、第二保护电阻和第三保护电阻；所述第一稳压器件、所述第二稳压器件和所述第三稳压器件分别为第一稳压二极管、第二稳压二极管和第三稳压二极管。As a possible implementation manner, the first protection device, the second protection device and the third protection device are respectively a first protection resistor, a second protection resistor and a third protection resistor; The voltage regulator device, the second voltage regulator device and the third voltage regulator device are respectively a first voltage regulator diode, a second voltage regulator diode and a third voltage regulator diode.

可见，本示例中，继电器工作状态检测***通过采用多个电阻和多个稳压二极管对检测***的电路进行保护，降低了***制作成本并提高了检测***的电路安全性。It can be seen that in this example, the relay working state detection system uses multiple resistors and multiple zener diodes to protect the circuit of the detection system, which reduces the system manufacturing cost and improves the circuit safety of the detection system.

作为一种可能的实施方式，请参阅图6，图6是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述控制处理模块130依次与故障处理模块140、报警模块150、故障显示模块160和传输模块170电性连接。As a possible implementation, please refer to FIG. 6. FIG. 6 is a schematic diagram of another relay working state detection system provided by the embodiment of the present application. The control processing module 130 is sequentially connected with the fault processing module 140, the alarm module 150, the The fault display module 160 is electrically connected to the transmission module 170 .

该继电器工作状态检测***中控制处理模块130确定继电器为异常状态时，所述控制处理模块130将异常状态传输给所述故障处理模块140，所述故障处理模块140会根据所述异常状态进行修复的工作，所述报警模块150会发出报警声，所述故障显示模块显示所述异常状态，便于工作人员及时前去进行维修。In the relay working state detection system, when the control processing module 130 determines that the relay is in an abnormal state, the control processing module 130 transmits the abnormal state to the fault processing module 140, and the fault processing module 140 repairs according to the abnormal state The alarm module 150 will emit an alarm sound, and the fault display module will display the abnormal state, so that the staff can go to repair in time.

可见，本示例中，继电器工作状态检测***能够根据所述异常状态进行修复的工作，可以及时修复小故障，避免安全问题以及降低维修成本，所述报警模块150和所述故障显示模块160能够及时对不能修复的异常状态进行警报和显示，以便能够及时修复异常状态。It can be seen that in this example, the relay working state detection system can perform repair work according to the abnormal state, can repair minor faults in time, avoid safety problems and reduce maintenance costs, and the alarm module 150 and the fault display module 160 can be timely. Alert and display the abnormal state that cannot be repaired, so that the abnormal state can be repaired in time.

作为一种可能的实施方式，所述故障处理模块用于分析并处理继电器工作的异常状态。As a possible implementation manner, the fault processing module is used to analyze and process the abnormal state of the relay operation.

所述故障处理模块140会根据所述异常状态对继电器进行简单修复的工作，在检测到修复失败时将异常状态进行反馈，以便工作人员等能及时收到继电器异常状态信息，例如所述故障处理模块140将故障信息传输到所述报警模块150和所述故障显示模块160，便于工作人员对继电器进行检修。The fault processing module 140 will perform a simple repair work on the relay according to the abnormal state, and feedback the abnormal state when the repair failure is detected, so that the staff and the like can receive the abnormal state information of the relay in time, such as the fault processing. The module 140 transmits the fault information to the alarm module 150 and the fault display module 160, so as to facilitate the maintenance of the relay by the staff.

可见，本示例中，继电器工作状态检测***中故障处理模块能够根据所述异常状态进行修复的工作，并能够及时对不能修复的异常状态进行反馈，能够降低维修成本，以及及时修复异常状态。It can be seen that in this example, the fault processing module in the relay working state detection system can perform repair work according to the abnormal state, and can timely feedback the abnormal state that cannot be repaired, which can reduce maintenance costs and repair the abnormal state in time.

作为一种可能的实施方式，请参阅图7，图7是本申请实施例提供的另一种继电器工作状态检测***的示意图，所述传输模块170通过无线传输与移动设备180进行数据传输。As a possible implementation manner, please refer to FIG. 7 , which is a schematic diagram of another relay working state detection system provided by an embodiment of the present application. The transmission module 170 performs data transmission with the mobile device 180 through wireless transmission.

该继电器工作状态检测***中控制处理模块确定继电器为异常状态时，会通过传输模块170将故障信息无线传输给移动设备180，便于用户及时收到故障信息以及记录故障信息和控制处理信息。When the control processing module in the relay working state detection system determines that the relay is in an abnormal state, it will wirelessly transmit the fault information to the mobile device 180 through the transmission module 170, so that the user can receive the fault information in time and record the fault information and control processing information.

可见，本示例中，继电器工作状态检测***通过传输模块170传输故障信息，能够使用户及时处理故障以及记录故障信息和控制处理信息。It can be seen that, in this example, the relay working state detection system transmits the fault information through the transmission module 170, which enables the user to deal with the fault in time and record the fault information and control processing information.

本申请实施例还提供一种继电器工作状态检测装置，所述继电器工作状态检测装置包括上述的继电器工作状态检测***。The embodiment of the present application further provides a relay working state detection device, and the relay working state detection device includes the above-mentioned relay working state detection system.

请参阅图8，图8是本申请实施例还提供一种继电器工作状态检测方法的流程示意图，应用于上述的继电器工作状态检测***，所述方法包括：Please refer to FIG. 8. FIG. 8 is a schematic flowchart of a method for detecting a working state of a relay according to an embodiment of the present application, which is applied to the above-mentioned system for detecting working state of a relay. The method includes:

S801，通过控制处理模块获取所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号；S801, obtaining a first driving signal of the main positive relay and a second driving signal of the main negative relay through a control processing module;

S802，根据所述第一驱动信号和所述第二驱动信号确定第一电压值集合，所述第一电压值集合为根据所述第一驱动信号和所述第二驱动信号得出的所述第一期待电压值、第二期待电压值和所述第三期待电压值的集合；S802: Determine a first set of voltage values according to the first drive signal and the second drive signal, where the first set of voltage values is the set of the first drive signal and the second drive signal a set of the first expected voltage value, the second expected voltage value, and the third expected voltage value;

S803，通过所述第一测量处理元件、第二测量处理元件和所述第三测量处理元件获取第一实际电压值、第二实际电压值和第三实际电压值，得到第二电压值集合；S803, obtaining a first actual voltage value, a second actual voltage value, and a third actual voltage value through the first measurement processing element, the second measurement processing element, and the third measurement processing element, to obtain a second voltage value set;

S804，根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态。S804: Determine the working states of the main positive relay and the main negative relay according to the first voltage value set and the second voltage value set.

可见，本申请中继电器工作状态检测***通过获取主正继电器的第一驱动信号和主负继电器的第二驱动信号，再根据第一驱动信号和第二驱动信号确定第一电压值集合，以及获取第一实际电压值、第二实际电压值和第三实际电压值，得到第二电压值集合，根据第一电压值集合和第二电压值集合确定主正继电器和主负继电器的工作状态，进而继电器工作状态检测***能够准确判断故障信息，提高了故障判断准确度以及及时上报故障信息。It can be seen that the relay working state detection system in this application obtains the first driving signal of the main positive relay and the second driving signal of the main negative relay, and then determines the first set of voltage values according to the first driving signal and the second driving signal, and obtains The first actual voltage value, the second actual voltage value and the third actual voltage value are obtained to obtain a second voltage value set, and the working states of the main positive relay and the main negative relay are determined according to the first voltage value set and the second voltage value set, and then The relay working state detection system can accurately judge fault information, improve the accuracy of fault judgment and timely report fault information.

在一个可能的示例中，所述根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态，包括：In a possible example, the determining the working states of the main positive relay and the main negative relay according to the first voltage value set and the second voltage value set includes:

在一个可能的示例中，所述确定所述主正继电器和/或所述主负继电器的工作状态为异常第一电压值集合第二电压值集合之后，还包括：In a possible example, after determining that the working state of the main positive relay and/or the main negative relay is an abnormal first voltage value set and a second voltage value set, the method further includes:

在一个可能的示例中，根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态之后，还包括：In a possible example, after determining the working states of the main positive relay and the main negative relay according to the first voltage value set and the second voltage value set, the method further includes:

请参阅图9，图9是本申请实施例还提供一种反接检测方法的流程示意图，应用于上述的继电器工作状态检测***，所述方法包括：Please refer to FIG. 9. FIG. 9 is a schematic flowchart of a reverse connection detection method provided by an embodiment of the present application, which is applied to the above-mentioned relay working state detection system. The method includes:

S901，检测所述主负继电器的驱动信号；S901, detecting the driving signal of the main negative relay;

S902，当所述主负继电器无驱动信号时，通过所述第二测量处理元件采集第一电压值；S902, when the main negative relay has no driving signal, collect a first voltage value through the second measurement and processing element;

S903，当所述主负继电器有驱动信号时，通过所述第二测量处理元件采集第二电压值；S903, when the main negative relay has a drive signal, collect a second voltage value through the second measurement and processing element;

S904，当所述第二电压值小于所述第一电压值时，确定所述第一DC模块反接。S904, when the second voltage value is smaller than the first voltage value, determine that the first DC module is reversely connected.

可见，本申请中继电器工作状态检测***检测主负继电器的驱动信号，当主负继电器无驱动信号时，通过第二测量处理元件采集第一电压值，当主负继电器有驱动信号时，通过第二测量处理元件采集第二电压值，当第二电压值小于第一电压值时，确定第一DC模块反接，实现了准确判断第一DC模块是否正负反接的准确度，以及及时上报反接信息。It can be seen that the relay working state detection system in this application detects the driving signal of the main negative relay. When the main negative relay has no driving signal, the first voltage value is collected by the second measurement processing element. When the main negative relay has a driving signal, the second measurement The processing element collects the second voltage value, and when the second voltage value is smaller than the first voltage value, it is determined that the first DC module is reversely connected, so as to realize the accuracy of accurately judging whether the first DC module is positive and negative reversely connected, and timely report the reverse connection information.

需要说明的是，对于前述的各申请实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。It should be noted that, for the sake of simple description, the foregoing application embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

以上内容和结构描述了本申请的基本原理、主要特征和本申请的优点，以及本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实现方式及应用范围上均会有改变之处，综上上述，本说明书内容不应理解为对本申请的限制。The above content and structure describe the basic principles, main features, and advantages of the present application, and the principles and implementations of the present application are described with specific examples herein. The application and its core idea; at the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation mode and application scope. In summary, the content of this description should not be construed as a reference to the application. limits.

Claims

一种继电器工作状态检测***，其特征在于，包括第一回路、电压采样电路和控制处理模块，所述第一回路包括依次串联连接的第一DC模块、主正继电器、第二DC模块和主负继电器，所述电压采样电路包括第一采样电路模块、第二采样电路模块和第三采样电路模块，所述第二采样电路模块包括第一电阻、第二电阻、第三电阻、第四电阻以及第二测量处理元件，其中，A relay working state detection system is characterized in that it includes a first loop, a voltage sampling circuit and a control processing module, wherein the first loop includes a first DC module, a main positive relay, a second DC module and a main DC module connected in series in sequence. Negative relay, the voltage sampling circuit includes a first sampling circuit module, a second sampling circuit module and a third sampling circuit module, the second sampling circuit module includes a first resistor, a second resistor, a third resistor, and a fourth resistor and a second measurement processing element, wherein,

所述第二DC模块的正极连接所述第一采样电路模块的一端、所述第一电阻的一端和所述主正继电器的一端，所述第一电阻的另一端连接所述第二电阻的一端、所述第三电阻的一端、所述第四电阻的一端和所述第二测量处理元件，所述第二电阻的另一端连接所述第二DC模块的负极、所述第一采样电路模块的另一端以及所述主负继电器的一端，所述第三电阻的另一端连接所述第一DC模块的正极和所述主正继电器的另一端，所述第四电阻的另一端连接所述第一DC模块的负极和所述主负继电器的另一端，所述控制处理模块连接所述第一采样电路模块、第二采样电路模块、第三采样电路模块、主正继电器和主负继电器；The positive pole of the second DC module is connected to one end of the first sampling circuit module, one end of the first resistor and one end of the main positive relay, and the other end of the first resistor is connected to the second resistor. one end, one end of the third resistor, one end of the fourth resistor and the second measurement and processing element, the other end of the second resistor is connected to the negative electrode of the second DC module and the first sampling circuit The other end of the module and one end of the main negative relay, the other end of the third resistor is connected to the positive pole of the first DC module and the other end of the main positive relay, and the other end of the fourth resistor is connected to the The negative pole of the first DC module and the other end of the main negative relay, the control processing module is connected to the first sampling circuit module, the second sampling circuit module, the third sampling circuit module, the main positive relay and the main negative relay ;

所述第一采样电路模块、所述第二采样电路模块和所述第三采样电路模块用于采集电压值，所述控制处理模块用于采集所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号，并比较采集的电压值和根据所述第一驱动信号和所述第二驱动信号得到的期待电压值，确定所述主正继电器和所述主负继电器的工作状态，所述工作状态包括正常状态和异常状态。The first sampling circuit module, the second sampling circuit module and the third sampling circuit module are used to collect voltage values, and the control processing module is used to collect the first drive signal of the main positive relay and the The second driving signal of the main negative relay, and comparing the collected voltage value with the expected voltage value obtained according to the first driving signal and the second driving signal, to determine the operation of the main positive relay and the main negative relay The working state includes a normal state and an abnormal state.
根据权利要求1所述的继电器工作状态检测***，其特征在于，所述第二采样电路模块还包括第五电阻、单向导通元件和外接电源，其中，The relay working state detection system according to claim 1, wherein the second sampling circuit module further comprises a fifth resistor, a unidirectional conduction element and an external power supply, wherein,

所述外接电源、所述单向导通元件和所述第五电阻依次串联后连接所述第二测量处理元件、所述第三电阻的一端和所述第四电阻的一端，其中，所述单向导通元件的正极与所述外接电源连接；The external power supply, the one-way conducting element, and the fifth resistor are connected in series to the second measurement and processing element, one end of the third resistor, and one end of the fourth resistor, wherein the single the positive pole of the conducting element is connected to the external power supply;

所述外接电源用于提供电能，所述单向导通元件用于保护所述外接电源，所述第五电阻用于保护所述第二测量处理元件以及为所述第二测量处理元件提供偏置电压。The external power supply is used for providing power, the unidirectional conduction element is used for protecting the external power supply, and the fifth resistor is used for protecting the second measurement processing element and providing bias for the second measurement processing element Voltage.
根据权利要求1或2所述的继电器工作状态检测***，其特征在于，所述第一采样电路模块包括第六电阻、第七电阻和第一测量处理元件，所述第三采样电路模块包括第八电阻、第九电阻和第三测量处理元件，其中，The relay working state detection system according to claim 1 or 2, wherein the first sampling circuit module includes a sixth resistor, a seventh resistor and a first measurement processing element, and the third sampling circuit module includes a first sampling circuit module. an eighth resistor, a ninth resistor, and a third measurement processing element, wherein,

所述第六电阻的一端连接所述第二DC模块的正极，所述第六电阻的另一端连接所述第七电阻的一端和所述第一测量处理元件，所述第七电阻的另一端连接所述第二DC模块的负极；One end of the sixth resistor is connected to the positive pole of the second DC module, the other end of the sixth resistor is connected to one end of the seventh resistor and the first measurement and processing element, and the other end of the seventh resistor is connected connecting the negative pole of the second DC module;

所述第八电阻的一端连接所述第一DC模块的正极，所述第八电阻的另一端连接所述第九电阻的一端和所述第三测量处理元件，所述第九电阻的另一端连接所述第一DC模块的负极；One end of the eighth resistor is connected to the positive electrode of the first DC module, the other end of the eighth resistor is connected to one end of the ninth resistor and the third measurement and processing element, and the other end of the ninth resistor is connected connecting the negative pole of the first DC module;

所述第六电阻和所述第七电阻用于分压和保护所述第一测量处理元件，所述第八电阻和所述第九电阻用于分压和保护所述第三测量处理元件。The sixth resistor and the seventh resistor are used to divide the voltage and protect the first measurement processing element, and the eighth resistor and the ninth resistor are used to divide the voltage and protect the third measurement processing element.
根据权利要求3所述的继电器工作状态检测***，其特征在于，所述第一采样电路模块还包括第一保护电路模块，所述第二采样电路模块还包括第二保护电路模块，所述第三采样电路模块还包括第三保护电路模块，其中，The relay working state detection system according to claim 3, wherein the first sampling circuit module further includes a first protection circuit module, the second sampling circuit module further includes a second protection circuit module, and the first sampling circuit module further includes a second protection circuit module. The three-sampling circuit module further includes a third protection circuit module, wherein,

所述第六电阻的另一端连接所述第一保护电路模块的一端，所述第一保护电路模块的另一端连接所述第一测量处理元件，所述第八电阻的另一端连接所述第三保护电路模块的一端，所述第三保护电路模块的另一端连接所述第三测量处理元件，所述第一电阻的另一端、所述第二电阻的一端、所述第三电阻的另一端和所述第四电阻的一端连接所述第二保护电路模块的一端，所述第二保护电路模块的另一端连接所述第二测量处理元件。The other end of the sixth resistor is connected to one end of the first protection circuit module, the other end of the first protection circuit module is connected to the first measurement and processing element, and the other end of the eighth resistor is connected to the first protection circuit module. One end of the three protection circuit modules, the other end of the third protection circuit module is connected to the third measurement and processing element, the other end of the first resistor, one end of the second resistor, and the other end of the third resistor One end and one end of the fourth resistor are connected to one end of the second protection circuit module, and the other end of the second protection circuit module is connected to the second measurement processing element.
根据权利要求4所述的继电器工作状态检测***，其特征在于，所述第一保护电路模块包括第一保护器件和第一稳压器件，所述第二保护电路模块包括第二保护器件和第二稳压器件，所述第三保护电路模块包括第三保护器件和第三稳压器件，其中，The relay working state detection system according to claim 4, wherein the first protection circuit module includes a first protection device and a first voltage stabilization device, and the second protection circuit module includes a second protection device and a first voltage regulator. Two voltage regulator devices, the third protection circuit module includes a third protection device and a third voltage regulator device, wherein,

所述第二DC模块的正极连接所述第一电阻的一端和所述第六电阻的一端，所述第一电阻的另一端连接所述第二电阻的一端、第三电阻的一端、第四电阻的一端和所述第二保护器件，所述第二保护器件连接所述第二测量处理元件和所述第二稳压器件，所述第二稳压器件连接所述第一DC模块的负极，所述第六电阻另一端连接所述第七电阻的一端和所述第一保护器件，所述第一保护器件连接所述第一测量处理元件和所述第一稳压器件，所述第一稳压器件连接所述第二DC模块的负极，所述第一DC模块的正极连接所述第八电阻的一端，所述第八电阻的另一端连接所述第九电阻的一端和所述第三保护器件，所述第三保护器件连接所述第三测量处理元件和所述第三稳压器件，所述第三稳压器件连接所述第九电阻的另一端和所述第一DC模块的负极。The positive pole of the second DC module is connected to one end of the first resistor and one end of the sixth resistor, and the other end of the first resistor is connected to one end of the second resistor, one end of the third resistor, and one end of the fourth resistor. One end of the resistor and the second protection device, the second protection device is connected to the second measurement and processing element and the second voltage regulator, and the second voltage regulator is connected to the negative electrode of the first DC module , the other end of the sixth resistor is connected to one end of the seventh resistor and the first protection device, the first protection device is connected to the first measurement processing element and the first voltage regulator device, the first protection device A voltage stabilizing device is connected to the negative electrode of the second DC module, the positive electrode of the first DC module is connected to one end of the eighth resistor, and the other end of the eighth resistor is connected to one end of the ninth resistor and the a third protection device, the third protection device is connected to the third measurement and processing element and the third voltage stabilization device, and the third voltage stabilization device is connected to the other end of the ninth resistor and the first DC Negative pole of the module.
一种继电器工作状态检测方法，其特征在于，应用于权利要求1-5任一项所述的继电器工作状态检测***，所述方法包括：A relay working state detection method, characterized in that, applied to the relay working state detection system according to any one of claims 1-5, the method comprising:

通过控制处理模块获取所述主正继电器的第一驱动信号和所述主负继电器的第二驱动信号；Obtain the first driving signal of the main positive relay and the second driving signal of the main negative relay through the control processing module;

根据所述第一驱动信号和所述第二驱动信号确定第一电压值集合，所述第一电压值集合为根据所述第一驱动信号和所述第二驱动信号得出的所述第一期待电压值、第二期待电压值和所述第三期待电压值的集合；A first set of voltage values is determined according to the first drive signal and the second drive signal, and the first set of voltage values is the first set of voltage values obtained from the first drive signal and the second drive signal a set of expected voltage values, a second expected voltage value, and the third expected voltage value;

通过所述第一测量处理元件、第二测量处理元件和所述第三测量处理元件采集第一实际电压值、第二实际电压值和第三实际电压值，得到第二电压值集合；Collect the first actual voltage value, the second actual voltage value and the third actual voltage value by using the first measurement processing element, the second measurement processing element and the third measurement processing element to obtain a second voltage value set;

根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态。The working states of the main positive relay and the main negative relay are determined according to the first voltage value set and the second voltage value set.
根据权利要求6所述的继电器工作状态检测方法，其特征在于，所述根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态，包括：The method for detecting a working state of a relay according to claim 6, wherein the working state of the main positive relay and the main negative relay is determined according to the first voltage value set and the second voltage value set ,include:

判断所述第一电压值集合和所述第二电压值集合的差值小于或等于预设阈值时，确定所述主正继电器和/或所述主负继电器的工作状态为正常；When judging that the difference between the first voltage value set and the second voltage value set is less than or equal to a preset threshold value, determine that the working state of the main positive relay and/or the main negative relay is normal;

判断所述第一电压值集合和所述第二电压值集合的差值大于所述预设阈值时，确定所述主正继电器和/或所述主负继电器的工作状态为异常。When it is judged that the difference between the first voltage value set and the second voltage value set is greater than the preset threshold value, it is determined that the working state of the main positive relay and/or the main negative relay is abnormal.
根据权利要求7所述的继电器工作状态检测方法，其特征在于，所述确定所述主正继电器和/或所述主负继电器的工作状态为异常之后，还包括：The method for detecting a working state of a relay according to claim 7, wherein after determining that the working state of the main positive relay and/or the main negative relay is abnormal, the method further comprises:

根据所述第一实际电压值、所述第二实际电压值和所述第三实际电压值确定所述第一继电器和所述第二继电器的实际开合状态；Determine the actual opening and closing states of the first relay and the second relay according to the first actual voltage value, the second actual voltage value and the third actual voltage value;

根据所述第一驱动信号、所述第二驱动信号和所述实际开合状态确定所述主正继电器和所述主负继电器是否发生粘连或无法闭合。Whether the main positive relay and the main negative relay are stuck or cannot be closed is determined according to the first driving signal, the second driving signal and the actual opening and closing state.
根据权利要求6所述的继电器工作状态检测方法，其特征在于，所述根据所述第一电压值集合和所述第二电压值集合确定所述主正继电器和所述主负继电器的工作状态之后，还包括：The method for detecting a working state of a relay according to claim 6, wherein the working state of the main positive relay and the main negative relay is determined according to the first voltage value set and the second voltage value set After that, also include:

若确定所述主正继电器和/或所述主负继电器的工作状态为异常时，输出提示消息。If it is determined that the working state of the main positive relay and/or the main negative relay is abnormal, a prompt message is output.
一种反接检测方法，其特征在于，应用于权利要求1-5任一项所述的继电器工作状态检测***，所述方法包括：A reverse connection detection method, characterized in that, applied to the relay working state detection system according to any one of claims 1-5, the method comprising:

检测所述主负继电器的驱动信号；detecting the driving signal of the main negative relay;

当所述主负继电器无驱动信号时，通过所述第二测量处理元件采集第一电压值；When the main negative relay has no driving signal, collect the first voltage value through the second measurement and processing element;

当所述主负继电器有驱动信号时，通过所述第二测量处理元件采集第二电压值；When the main negative relay has a drive signal, collect a second voltage value through the second measurement and processing element;

当所述第二电压值小于所述第一电压值时，确定所述第一DC模块正负极反接。When the second voltage value is smaller than the first voltage value, it is determined that the positive and negative electrodes of the first DC module are reversely connected.