WO2018023362A1 - Fault detection system for power supply counter - Google Patents

Fault detection system for power supply counter Download PDF

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Publication number
WO2018023362A1
WO2018023362A1 PCT/CN2016/092792 CN2016092792W WO2018023362A1 WO 2018023362 A1 WO2018023362 A1 WO 2018023362A1 CN 2016092792 W CN2016092792 W CN 2016092792W WO 2018023362 A1 WO2018023362 A1 WO 2018023362A1
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Prior art keywords
power supply
signal
fault
fault detection
detection system
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PCT/CN2016/092792
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French (fr)
Chinese (zh)
Inventor
邹霞
钟玲珑
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邹霞
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Priority to PCT/CN2016/092792 priority Critical patent/WO2018023362A1/en
Publication of WO2018023362A1 publication Critical patent/WO2018023362A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer

Definitions

  • the present invention relates to an apparatus for detecting a power supply counter failure, and more particularly to a power supply counter failure detection system, which belongs to the field of power supply detection.
  • the fault detection-based detection technology acquires the response output of the fault state under the test conditions, and designs the system to complete the automatic detection of the fault unit. It has the characteristics of high detection efficiency and accurate fault location.
  • Equipment based on hardware-in-the-loop simulation The guarantee method uses a certain method to realize the simulation of various faults, solves the difficulties in setting the faults in the actual training, and the lack of troubleshooting opportunities for the maintenance personnel. It has the characteristics of strong sense of reality, close proximity to the installation, and low cost. Modeling is the basis of simulation.
  • Simulation is one of the important purposes of modeling, and the two are inseparable.
  • System modeling is a mathematical or physical method based on the analysis or observation of the actual system, ignoring the secondary factors, to obtain a model that approximates or simplifies the actual system.
  • the established model is actually a model established according to the purpose of the research, and is an abstract description of the essential attributes of a certain aspect of the system.
  • the simulation is to use the model to reproduce the essential process occurring in the actual system. The essence is the operation of the model, which is applied to the testing, analysis or training of the system.
  • the system can be a real system or a real and conceptual system realized by the model.
  • Fault modeling was originally a concept proposed in fault diagnosis, and is a process of establishing a fault model for various failure modes in the system.
  • fault modeling technology has been developed with the development of fault diagnosis technology, and the application object has been gradually expanded.
  • the existing basic models mainly include quantitative models, qualitative models, causal dependence models, structural models, and multi-signal flow graph models.
  • System modeling and simulation technology is based on similar principles, model theory, system technology, information technology, and related professional technologies in modeling and simulation applications.
  • Computer systems, application-related physical effects devices, and simulators are Tools, using models to study, analyze, and design actual or envisioned systems A multidisciplinary and comprehensive technology for processing, production, testing, operation, evaluation and maintenance activities.
  • a power supply counter fault detection system is mainly composed of a single chip controller, a bus control system, a signal conditioning circuit, a power supply system, a PC, an LED display, and various types of connecting cables, and the bus control system and the signal conditioning circuit respectively
  • the power supply system, the PC, the LED display, and the object to be tested are connected, and the power supply system is connected to the LED display and the PC through the single chip controller.
  • the present invention provides a method for detecting a fault of a power supply counter.
  • the method is implemented by a power supply counter fault detection system, and specifically includes the following steps:
  • Step 1 After the interface cable of the tested circuit board is connected and the system is powered on normally, the PC sends a corresponding test execution instruction to the single-chip controller through serial communication;
  • Step 2 After receiving the instruction, the single-chip controller calculates the detection control signal through software, and the signal is used as the input signal I of the conditioning circuit, and the output signal I after the modulation processing by the signal conditioning circuit is the test of the object to be tested. Input the excitation signal;
  • Step 3 The test output is used as the input signal ⁇ of the conditioning circuit, and the output signal modulated by the signal conditioning circuit is sent back to the single-chip controller to be compared as a test signal and a software fault model output in the controller;
  • Step 4 The comparison processing result of the step 3 is used to determine whether the measured object generates a fault, and if there is a fault, the component unit combination that generates the fault is solved, and finally displayed in the LED in the form of the defined fault code. come out;
  • Step 5 The fault code is sent back to the PC through serial communication, and the signal flow of the entire system is completed under the control of the bus.
  • the overcurrent detection circuit protects the system bus in order to avoid excessive current. This damages some of the devices.
  • the power supply counter fault detection system provided by the present invention introduces an adjacency matrix to indicate the directional transfer relationship of signals between the links, and is used for analyzing the validity of the defined fault signal, and realizing The automatic development of the power counter board level fault detection.
  • FIG. 1 is a schematic structural diagram of a power supply counter fault detection system according to the present invention.
  • FIG. 2 is a block diagram of a controller and a bus.
  • the present invention provides a power supply counter fault detection system.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • the power supply counter fault detection system of the present invention is mainly composed of a single chip controller, a bus control system, a signal conditioning circuit, a power supply system, a PC, an LED display, and various types of connecting cables, as shown in FIG.
  • the operation of the fault detection system is generally performed as follows: After the interface cable of the circuit under test is connected and the system is powered on normally, the PC sends a corresponding test execution instruction to the microcontroller controller through serial communication, the single chip controller After receiving the instruction, the detection control signal is calculated by software, and the signal is used as the input signal I of the conditioning circuit.
  • the output signal I modulated by the signal conditioning circuit is the test input excitation signal of the object to be tested, and the test output is used as the conditioning circuit.
  • the input signal ⁇ , the output signal modulated by the signal conditioning circuit is sent back to the single-chip controller, and is used as a test signal to compare with the software fault model output in the controller. The result is used to determine whether the measured object is faulty.
  • the fault code is sent back to the PC through serial communication, and the signal transmission of the entire system is Is done under bus control, over current Inch engraved sensing circuit protected system bus, so as not to produce large currents through the device so that the damaged portion.
  • the system controller mainly completes serial communication with the PC, detects the transmission of the control signal, and connects the test signal.
  • the LED display of the comparison processing and the fault code requires all signals to be transmitted in the system in the form of bus control, completes the design of the controller and the bus, and provides a control and signal processing platform for the board-level fault detection.
  • the composition of the controller and the bus is shown in Figure 2.
  • the system uses the ATmegal28 MCU as the main control chip, and selects the 7 4CBT16210 multi-channel signal-critical chip as the bus controller.
  • the PC sends a detection execution instruction to the MCU controller through the level conversion of the MAX485 interface chip, and outputs a corresponding detection control signal through the software solution, the signal including the bus chip selection signal and the
  • the conditioned excitation input signal is sent to the circuit under test as an excitation input through the bus after the conditioning is adapted.
  • the excitation response output of the tested circuit board is adjusted and adapted and sent back to the MCU through the bus as a test signal and software failure model.
  • the output is compared and processed to resolve the corresponding fault code and send it back to P.
  • the operating system voltage of each component of the detection system and the circuit under test are different.
  • the programmable power supply By designing the programmable power supply to provide an adapted working voltage for each component and the circuit board under test, and achieving controllable adjustment of the power supply, the circuit board is faulty.
  • the development of the detection system provides basic conditions.
  • the overcurrent detection circuit is designed to prevent excessive current from being generated in the bus, so as to avoid damage to components in the system and provide reliability protection for the system.
  • the power supply counter fault detection system and method provided by the present invention introduces an adjacency matrix to indicate a directional transfer relationship of signals between the links, for analyzing the validity of the defined fault signal, and realizing the power counter circuit board level. Automatic detection of fault detection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

A fault detection system for a power supply counter. The detection system mainly consists of a single-chip microcomputer controller, a bus control system, a signal conditioning circuit, a power supply system, a PC machine, an LED display and various types of connecting cables. The bus control system is respectively connected to the signal conditioning circuit, the power supply system, the PC machine, the LED display and the object to be tested. The power supply system is connected to the LED display and the PC machine by means of the single-chip microcomputer controller. Compared with the prior art, the fault detection system for the power supply counter introduces an adjacency matrix to represent the directed transmission relationships of signals between various links, so as to use the adjacency matrix to analyze the validity of a defined fault signal, enabling the circuit board level fault detection of the power supply counter to be automatically carried out.

Description

说明书 发明名称：电源计数器故障检测*** 技术领域  Instruction Manual Name: Power Counter Fault Detection System Technical Field
[0001] 本发明涉及一种用于检测电源计数器故障的装置， 尤其涉及一种电源计数器故 障检测***， 属于电源检测领域。  [0001] The present invention relates to an apparatus for detecting a power supply counter failure, and more particularly to a power supply counter failure detection system, which belongs to the field of power supply detection.
背景技术  Background technique
[0002] 随着科学技术的高速发展， 设备的检测呈现出功能综合、 技术先进、 结构复杂 、 价格昂贵、 更新换代快等特点， 因此对设备检测人员的能力提出了更高的要 求。 基于故障仿真的检测技术通过获取***在测试条件下故障状态的响应输出 ， 并以此为基础设计***完成故障单元的自动检测， 具有检测效率高、 故障定 位精确等特点； 基于半实物仿真的设备保障方式采用一定的方法实现各类故障 的仿真， 解决了实装训练中故障设置困难、 维修人员缺少故障排除练习机会等 难题， 具有真实感强、 与实装接近、 成本低等特点。 建模是仿真的基础， 仿真 是建模的重要目的之一， 二者是密不可分的。 ***建模是通过对实际***的分 析或观测， 在忽略次要因素的基础上用数学或物理的方法进行描述， 从而获得 与实际***近似或简化的模型。 所建立的模型， 实际上是根据研究目的而确立 的模型， 是对***某一方面本质属性的抽象描述。 而仿真是利用模型再现实际 ***中发生的本质过程， 实质就是对模型的运转， 应用于***的测试、 分析或 训练， ***可以是真实***或由模型实现的真实和概念***。  [0002] With the rapid development of science and technology, the detection of equipment exhibits the characteristics of comprehensive functions, advanced technology, complicated structure, high price, fast replacement, etc., and therefore puts higher requirements on the capabilities of equipment inspectors. The fault detection-based detection technology acquires the response output of the fault state under the test conditions, and designs the system to complete the automatic detection of the fault unit. It has the characteristics of high detection efficiency and accurate fault location. Equipment based on hardware-in-the-loop simulation The guarantee method uses a certain method to realize the simulation of various faults, solves the difficulties in setting the faults in the actual training, and the lack of troubleshooting opportunities for the maintenance personnel. It has the characteristics of strong sense of reality, close proximity to the installation, and low cost. Modeling is the basis of simulation. Simulation is one of the important purposes of modeling, and the two are inseparable. System modeling is a mathematical or physical method based on the analysis or observation of the actual system, ignoring the secondary factors, to obtain a model that approximates or simplifies the actual system. The established model is actually a model established according to the purpose of the research, and is an abstract description of the essential attributes of a certain aspect of the system. The simulation is to use the model to reproduce the essential process occurring in the actual system. The essence is the operation of the model, which is applied to the testing, analysis or training of the system. The system can be a real system or a real and conceptual system realized by the model.
[0003] 故障建模最初是在故障诊断中提出的概念， 是对***中各类失效模式建立故障 模型的过程。 故障建模技术作为故障诊断技术的基础， 伴随着故障诊断技术的 发展， 故障建模技术不断得到发展， 应用对象也逐渐扩大。 按照建模方法分， 现有基本模型主要有定量模型、 定性模型、 因果依赖模型、 结构模型、 多信号 流图模型等。  [0003] Fault modeling was originally a concept proposed in fault diagnosis, and is a process of establishing a fault model for various failure modes in the system. As the basis of fault diagnosis technology, fault modeling technology has been developed with the development of fault diagnosis technology, and the application object has been gradually expanded. According to the modeling method, the existing basic models mainly include quantitative models, qualitative models, causal dependence models, structural models, and multi-signal flow graph models.
[0004] ***建模仿真技术是以相似原理、 模型理论、 ***技术、 信息技术以及建模与 仿真应用领域的有关专业技术为基础， 以计算机***、 与应用相关的物理效应 设备及仿真器为工具， 利用模型对实际的或设想的***进行研究、 分析、 设计 、 加工生产、 试验、 运行、 评估和维护活动的一门多学科的综合性技术。 [0004] System modeling and simulation technology is based on similar principles, model theory, system technology, information technology, and related professional technologies in modeling and simulation applications. Computer systems, application-related physical effects devices, and simulators are Tools, using models to study, analyze, and design actual or envisioned systems A multidisciplinary and comprehensive technology for processing, production, testing, operation, evaluation and maintenance activities.
技术问题  technical problem
[0005] 鉴于上述现有技术的不足之处， 本发明的目的在于提供一种可以检测电源检测 器故障的装置或***。  In view of the above deficiencies of the prior art, it is an object of the present invention to provide an apparatus or system that can detect a failure of a power supply detector.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0006] 为了达到上述目的， 本发明采取了以下技术方案： [0006] In order to achieve the above object, the present invention adopts the following technical solutions:
[0007] 一种电源计数器故障检测***， 主要由单片机控制器、 总线控制***、 信号调 理电路、 供电***、 PC机、 LED显示器以及各类连接电缆组成， 所述总线控制 ***分别与信号调理电路、 供电***、 PC机、 LED显示器以及被测对象连接， 所述供电***通过单片机控制器与 LED显示器和 PC机连接。  [0007] A power supply counter fault detection system is mainly composed of a single chip controller, a bus control system, a signal conditioning circuit, a power supply system, a PC, an LED display, and various types of connecting cables, and the bus control system and the signal conditioning circuit respectively The power supply system, the PC, the LED display, and the object to be tested are connected, and the power supply system is connected to the LED display and the PC through the single chip controller.
[0008] 本发明同吋提供了一种电源计数器故障的检测方法， 所述方法通过电源计数器 故障检测***来实现， 具体包括以下步骤：  The present invention provides a method for detecting a fault of a power supply counter. The method is implemented by a power supply counter fault detection system, and specifically includes the following steps:
[0009] 步骤一、 在被测电路板接口电缆连接完毕以及***正常上电后， PC机通过串行 通讯向单片机控制器发送相应的测试执行指令；  [0009] Step 1: After the interface cable of the tested circuit board is connected and the system is powered on normally, the PC sends a corresponding test execution instruction to the single-chip controller through serial communication;
[0010] 步骤二、 单片机控制器接收到指令后， 通过软件解算出检测控制信号， 该信号 作为调理电路的输入信号 I， 经过信号调理电路调制处理后的输出信号 I即为被测 对象的测试输入激励信号；  [0010] Step 2: After receiving the instruction, the single-chip controller calculates the detection control signal through software, and the signal is used as the input signal I of the conditioning circuit, and the output signal I after the modulation processing by the signal conditioning circuit is the test of the object to be tested. Input the excitation signal;
[0011] 步骤三、 测试输出作为调理电路的输入信号 π， 经过信号调理电路调制处理后 的输出信号 Π送回单片机控制器， 作为测试信号与控制器中的软件故障模型输出 作比较处理；  [0011] Step 3: The test output is used as the input signal π of the conditioning circuit, and the output signal modulated by the signal conditioning circuit is sent back to the single-chip controller to be compared as a test signal and a software fault model output in the controller;
[0012] 步骤四、 所述步骤三的比较处理结果用来判断被测对象是否产生故障， 若有故 障继而解算出产生故障的元器件单元组合， 最终以定义过的故障代码形式在 LED 中显示出来；  [0012] Step 4: The comparison processing result of the step 3 is used to determine whether the measured object generates a fault, and if there is a fault, the component unit combination that generates the fault is solved, and finally displayed in the LED in the form of the defined fault code. come out;
[0013] 步骤五、 通过串行通讯将故障代码送回 PC机， 整个***的信号流传输都是在总 线控制下完成的， 过流检测电路吋刻保护着***总线， 以免产生过大的电流从 而损坏部分器件。  [0013] Step 5: The fault code is sent back to the PC through serial communication, and the signal flow of the entire system is completed under the control of the bus. The overcurrent detection circuit protects the system bus in order to avoid excessive current. This damages some of the devices.
发明的有益效果 有益效果 Advantageous effects of the invention Beneficial effect
[0014] 相较于现有技术， 本发明提供的电源计数器故障检测***， 引入了邻接矩阵来 表示各环节之间信号的有向传递关系， 用于分析所定义故障信号的有效性， 实 现了电源计数器电路板级故障检测的自动幵展。  Compared with the prior art, the power supply counter fault detection system provided by the present invention introduces an adjacency matrix to indicate the directional transfer relationship of signals between the links, and is used for analyzing the validity of the defined fault signal, and realizing The automatic development of the power counter board level fault detection.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0015] 图 1为本发明电源计数器故障检测***结构示意图；  1 is a schematic structural diagram of a power supply counter fault detection system according to the present invention;
[0016] 图 2为控制器与总线组成框图。 2 is a block diagram of a controller and a bus.
本发明的实施方式 Embodiments of the invention
[0017] 本发明提供一种电源计数器故障检测***， 为使本发明的目的、 技术方案及效 果更加清楚、 明确， 以下参照附图并举实施例对本发明进一步详细说明。 应当 理解， 此处所描述的具体实施例仅用以解释本发明， 并不用于限定本发明。  [0017] The present invention provides a power supply counter fault detection system. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0018] 本发明公幵的电源计数器故障检测***， 硬件主要由单片机控制器、 总线控制 ***、 信号调理电路、 供电***、 PC机、 LED显示以及各类连接电缆组成， 如 图 1所示。  [0018] The power supply counter fault detection system of the present invention is mainly composed of a single chip controller, a bus control system, a signal conditioning circuit, a power supply system, a PC, an LED display, and various types of connecting cables, as shown in FIG.
[0019] 故障检测***的工作大致按如下流程进行： 在被测电路板接口电缆连接完毕以 及***正常上电后， PC机通过串行通讯向单片机控制器发送相应的测试执行指 令， 单片机控制器接收到指令后， 通过软件解算出检测控制信号， 该信号作为 调理电路的输入信号 I， 经过信号调理电路调制处理后的输出信号 I即为被测对象 的测试输入激励信号， 测试输出作为调理电路的输入信号 π， 经过信号调理电路 调制处理后的输出信号 Π送回单片机控制器， 作为测试信号与控制器中的软件故 障模型输出作比较处理， 结果用来判断被测对象是否产生故障， 若有故障继而 解算出产生故障的元器件单元组合， 最终以定义过的故障代码形式在 LED中显示 出来， 与此同吋通过串行通讯将故障代码送回 PC机， 整个***的信号流传输都 是在总线控制下完成的， 过流检测电路吋刻保护着***总线， 以免产生过大的 电流从而损坏部分器件。  [0019] The operation of the fault detection system is generally performed as follows: After the interface cable of the circuit under test is connected and the system is powered on normally, the PC sends a corresponding test execution instruction to the microcontroller controller through serial communication, the single chip controller After receiving the instruction, the detection control signal is calculated by software, and the signal is used as the input signal I of the conditioning circuit. The output signal I modulated by the signal conditioning circuit is the test input excitation signal of the object to be tested, and the test output is used as the conditioning circuit. The input signal π, the output signal modulated by the signal conditioning circuit is sent back to the single-chip controller, and is used as a test signal to compare with the software fault model output in the controller. The result is used to determine whether the measured object is faulty. Faulty and then solve the faulty component unit combination, and finally display it in the LED in the form of the defined fault code. At the same time, the fault code is sent back to the PC through serial communication, and the signal transmission of the entire system is Is done under bus control, over current Inch engraved sensing circuit protected system bus, so as not to produce large currents through the device so that the damaged portion.
[0020] ***控制器主要完成与 PC机的串行通讯、 检测控制信号的发送、 测试信号的接 收与比较处理以及故障代码的 LED显示， 要求所有信号以总线控制的形式在*** 中传输， 完成控制器与总线的设计， 为电路板级故障检测的展幵提供控制与信 号处理平台。 [0020] The system controller mainly completes serial communication with the PC, detects the transmission of the control signal, and connects the test signal. The LED display of the comparison processing and the fault code requires all signals to be transmitted in the system in the form of bus control, completes the design of the controller and the bus, and provides a control and signal processing platform for the board-level fault detection.
[0021] 控制器与总线的组成如图 2所示， ***以 ATmegal28单片机为主控芯片， 选用 7 4CBT16210多路信号幵关芯片作为总线控制器。 基于软件编程完成整个控制过程 的算法设计， PC机通过 MAX485接口芯片的电平转换向单片机控制器发送检测 执行指令， 经过软件解算输出对应的检测控制信号， 该信号包括总线片选信号 和未调理的测试激励输入信号， 经调理适配后通过总线送至被测电路板作为激 励输入， 被测电路板的激励响应输出经调理适配后通过总线送回单片机， 作为 测试信号与软件故障模型输出作比较处理， 从而解算出相应的故障代码并送回 P [0021] The composition of the controller and the bus is shown in Figure 2. The system uses the ATmegal28 MCU as the main control chip, and selects the 7 4CBT16210 multi-channel signal-critical chip as the bus controller. Based on the software programming to complete the algorithm design of the whole control process, the PC sends a detection execution instruction to the MCU controller through the level conversion of the MAX485 interface chip, and outputs a corresponding detection control signal through the software solution, the signal including the bus chip selection signal and the The conditioned excitation input signal is sent to the circuit under test as an excitation input through the bus after the conditioning is adapted. The excitation response output of the tested circuit board is adjusted and adapted and sent back to the MCU through the bus as a test signal and software failure model. The output is compared and processed to resolve the corresponding fault code and send it back to P.
C机， 同吋在 LED模块中显示故障代码。 C machine, the same shows the fault code in the LED module.
[0022] 通过对被测对象的工作原理分析可知， 在角速度板、 光码接收板、 激光接收板 以及电源计数器电路板中的端口输入输出信号中， 主要有模拟电压信号 （低压 高压都有） 、 电源信号、 PWM信号、 数字 TTL信号、 数字脉冲信号、 数字吋序 信号。 对于部分数字信号， 可直接作为单片机控制器的输入输出连接至被测对 象， 例如 TTL信号、 脉冲信号等； 对于模拟信号以及部分数字信号， 需要经过调 理电路的适配处理， 才能加载至被测对象以及送回单片机进行比较处理。  [0022] By analyzing the working principle of the object to be tested, it is known that in the port input and output signals in the angular velocity plate, the optical code receiving plate, the laser receiving plate, and the power counter circuit board, there are mainly analog voltage signals (both low voltage and high voltage). , power signal, PWM signal, digital TTL signal, digital pulse signal, digital sequence signal. For some digital signals, it can be directly connected to the measured object as the input and output of the microcontroller controller, such as TTL signal, pulse signal, etc. For analog signals and some digital signals, it needs to be adapted by the conditioning circuit before it can be loaded to the measured The object is sent back to the microcontroller for comparison processing.
[0023] 检测***各部件以及被测电路板的工作电压各有差异， 通过设计程控电源为各 部件及被测电路板提供适配的工作电压， 并实现供电的可控调节， 为电路板故 障检测***的展幵提供基本的条件， 另外设计过流检测电路是为了防止总线中 产生过大电流， 以免造成***中元器件的损坏， 为***提供可靠性保护。  [0023] The operating system voltage of each component of the detection system and the circuit under test are different. By designing the programmable power supply to provide an adapted working voltage for each component and the circuit board under test, and achieving controllable adjustment of the power supply, the circuit board is faulty. The development of the detection system provides basic conditions. In addition, the overcurrent detection circuit is designed to prevent excessive current from being generated in the bus, so as to avoid damage to components in the system and provide reliability protection for the system.
[0024] 本发明提供的电源计数器故障检测***和方法， 引入了邻接矩阵来表示各环节 之间信号的有向传递关系， 用于分析所定义故障信号的有效性， 实现了电源计 数器电路板级故障检测的自动幵展。  [0024] The power supply counter fault detection system and method provided by the present invention introduces an adjacency matrix to indicate a directional transfer relationship of signals between the links, for analyzing the validity of the defined fault signal, and realizing the power counter circuit board level. Automatic detection of fault detection.
[0025]  [0025]
[0026] 可以理解的是， 对本领域普通技术人员来说， 可以根据本发明的技术方案及其 发明构思加以等同替换或改变， 而所有这些改变或替换都应属于本发明所附的 权利要求的保护范围。  [0026] It is to be understood that those skilled in the art can make equivalent substitutions or changes in accordance with the present invention and the inventive concept, and all such changes or substitutions should belong to the appended claims. protected range.

Claims

权利要求书 Claim
[权利要求 1] 一种电源计数器故障检测***， 其特征在于： 所述检测***主要由单 片机控制器、 总线控制***、 信号调理电路、 供电***、 PC机、 LE D显示器以及各类连接电缆组成， 所述总线控制***分别与信号调理 电路、 供电***、 PC机、 LED显示器以及被测对象连接， 所述供电 ***通过单片机控制器与 LED显示器和 PC机连接。  [Claim 1] A power supply counter fault detection system, wherein: the detection system is mainly composed of a single chip controller, a bus control system, a signal conditioning circuit, a power supply system, a PC, an LE D display, and various types of connecting cables. The bus control system is respectively connected to a signal conditioning circuit, a power supply system, a PC, an LED display, and an object to be measured, and the power supply system is connected to the LED display and the PC through a single chip controller.
PCT/CN2016/092792 2016-08-02 2016-08-02 Fault detection system for power supply counter WO2018023362A1 (en)

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