WO2016074429A1 - 测试方法、控制器及测试系统 - Google Patents

测试方法、控制器及测试系统 Download PDF

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WO2016074429A1
WO2016074429A1 PCT/CN2015/076314 CN2015076314W WO2016074429A1 WO 2016074429 A1 WO2016074429 A1 WO 2016074429A1 CN 2015076314 W CN2015076314 W CN 2015076314W WO 2016074429 A1 WO2016074429 A1 WO 2016074429A1
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test
parameter
controller
instance
load
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PCT/CN2015/076314
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English (en)
French (fr)
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王际波
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中兴通讯股份有限公司
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Publication of WO2016074429A1 publication Critical patent/WO2016074429A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40Testing power supplies

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  • This article covers the field of test control, especially related to a test method, controller and test system.
  • the key components of the switching power supply should include the following types but not limited to the following: input rectifier bridge, main switch tube, output rectifier, output freewheel, clamp tube, auxiliary power switch, auxiliary power output rectifier diode, large electrolytic capacitor Ripple current and voltage, etc.
  • the electrical stress test items are as follows:
  • the stress is defined as: electrical, thermal, mechanical and other loads that affect the failure rate of components.
  • the electrical load is the electrical stress involved here.
  • the electrical stress parameters of the device are an important test indicator, directly related to the performance and quality of the product, and the traditional test methods are as follows:
  • test resources are optional, and different personnel may choose the instrument due to the difference in performance, which will result in inconsistent test results;
  • test target requires obtaining the maximum value (randomly generated) as much as possible, in order to achieve this goal, it is necessary to repeat a dozen or even dozens of actions for a single device such as a switch, and there are more than a dozen key devices for the entire switching power supply. Repeated operations require a lot of time for testers;
  • test data The processing and recording of test data is cumbersome.
  • the data generated during the test contains waveforms and texts, numerical values, and the occurrence of the maximum value is unpredictable and random. It takes a lot of work to manually record and save the waveform.
  • test items need to set corresponding test conditions such as voltage, current, and measurement gear position, oscilloscope bandwidth, trigger level, sampling mode, etc. for the equipment.
  • test conditions such as voltage, current, and measurement gear position, oscilloscope bandwidth, trigger level, sampling mode, etc.
  • frequent switching is required. Any wrong operation will affect the accuracy and authenticity of the test results. This requires high technical quality and experience for the testers.
  • Embodiments of the present invention provide a testing method, device, and controller to implement automation of power device testing and improve testing efficiency of a power device.
  • a test method for testing a device of a first device wherein the first device is respectively connected to a configuration device of an operating environment of the first device and a test instrument of the device, the configuration device and The test instruments are respectively connected to a controller, and the test method includes:
  • the controller selects a test instance from at least one unexecuted test instance of the preset test item, and obtains test configuration parameters of the test instance, where the test configuration parameter includes a test environment parameter and an instrument test parameter. ;
  • a first sending step the controller sending the test environment parameter to the configuration device
  • a second sending step when the first device is running in the first operating environment, the controller sends a test data query instruction to the test instrument, where the first operating environment is the configuration device according to the test Environmental parameters are provided to the first device;
  • the controller receives the test data reported by the test instrument, and the test data is obtained by the test instrument testing the device of the first device according to the test data query instruction;
  • the controller fills in the identifier of the test instance and the test data into a corresponding position in the test report template, and marks the test instance as an executed test instance, and returns to the obtaining step.
  • the filling step includes:
  • the controller determines whether all test instances of the preset test item are tested and obtains a judgment result
  • the identifier of the test instance and the test data are filled into corresponding positions in the test report template, and the test instance is Marked as an executed test instance, returning to the acquisition step.
  • the foregoing method further includes:
  • the controller analyzes all the test data, obtains test results of the preset test item, and performs the test.
  • the result is filled in to the corresponding location in the test report template;
  • the controller outputs the test report template after the test result is filled as a test report of the preset test item.
  • the configuration device includes a programmable power supply and an electronic load
  • the test environment parameter includes a power supply parameter and a load parameter
  • the first operating environment includes:
  • the configuration device provides an electrical signal corresponding to the power supply parameter to the first device according to the power supply parameter
  • the electronic load provides a load corresponding to the load parameter to the first device according to the load parameter.
  • the power supply parameter comprises an input voltage amplitude and/or type, the load parameter comprising a load size.
  • a controller comprising:
  • the acquiring module is configured to: select a test instance from at least one unexecuted test instance of the preset test item, and obtain test configuration parameters of the test instance, where the test configuration parameter includes a test environment parameter and an instrument test parameter;
  • the first sending module is configured to: send the test environment parameter to the configuration device;
  • a second sending module configured to: send a test data query instruction to the test instrument when the first device is running in the first operating environment, where the first operating environment is that the configuration device is according to the test environment a parameter provided to the first device;
  • the receiving module is configured to: receive test data reported by the test instrument, where the test data is obtained by testing, by the test instrument, the device of the first device according to the test data query instruction;
  • the module is filled in, and the identifier of the test instance and the test data are filled into corresponding positions in the test report template, and the test instance is marked as an executed test instance, and the acquisition module is triggered.
  • the filling module includes:
  • a determining unit configured to: determine, by the controller, whether all test instances of the preset test item are tested, and obtain a judgment result;
  • a returning unit configured to: when the judgment result indicates that all the test instances of the preset test item are not all tested, fill in the identifier of the test instance and the test data into a corresponding position in the test report template, The test instance is marked as an executed test instance, and the acquisition module is triggered.
  • controller further includes:
  • the analyzing unit is configured to: when the determining result indicates that all test instances of the preset test item are tested, the controller analyzes all the test data to obtain test results of the preset test item And filling in the test results into the corresponding location in the test report template;
  • an output module configured to: output the test report template after the test result is filled out as a test report of the preset test item.
  • the configuration device includes a programmable power supply and an electronic load
  • the test environment parameter The power supply parameter and the load parameter are included
  • the first sending module includes:
  • a first providing unit configured to: send the power supply parameter to the programmable power source
  • a second providing unit configured to: send the load parameter to the electronic load
  • the first operating environment includes:
  • the configuration device provides an electrical signal corresponding to the power supply parameter to the first device according to the power supply parameter
  • the electronic load provides a load corresponding to the load parameter to the first device according to the load parameter.
  • the power supply parameter comprises an input voltage amplitude and/or type, the load parameter comprising a load size.
  • a test system includes a configuration device, a test instrument, and the above controller.
  • a computer readable storage medium storing program instructions that are implemented when the program instructions are executed.
  • the instance to be tested of the test item is automatically executed, the automation of the power device test is realized, and the test efficiency of the power device is improved.
  • FIG. 1 is a flow chart showing the steps of a test method according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the hardware structure of a system according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a system software according to an embodiment of an embodiment of the present invention.
  • Figure 4 shows an example of implementing the Office AxtiveX control on the Labview platform. This example function is to create a new office document. Other Office AxtiveX control functions can be implemented by this example.
  • Figure 5 shows an example of a program that calls the VISA function on the Labview platform to implement a command to control the Tektronix oscilloscope to measure and read data.
  • VISA function on the Labview platform
  • Tektronix oscilloscope to measure and read data.
  • FIG. 6 is a schematic diagram of a Labview human-machine interface according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a controller according to an embodiment of the present invention.
  • FIG. 1 is a flow chart showing the steps of a test method according to an embodiment of the present invention.
  • an embodiment of the present invention provides a test method for testing a device of a first device, including the following steps:
  • Step 101 The obtaining step, the controller selects a test instance from at least one unexecuted test instance of the preset test item, and obtains a test configuration parameter of the test instance, where the test configuration parameter includes a test environment parameter and an instrument test. parameter;
  • Step 102 The first sending step, the controller sends the test environment parameter to the configuration device, so that the configuration device can provide the first operating environment to the first device according to the test environment parameter;
  • Step 103 a second sending step, when the first device runs in the first operating environment, the controller sends a test data query instruction to the test instrument, so that the test device can query according to the test data. Instructing the device to test, obtaining test data, and reporting the test data to the controller;
  • Step 104 receiving, the controller receiving the test data
  • Step 105 Fill in the step, the controller fills in the identifier of the test instance and the test data into a corresponding position in the test report template, and marks the test instance as an executed test instance, and returns the obtaining step.
  • the first device is respectively connected to a configuration device of an operating environment of the first device and a test device of the device, and the configuration device and the testing device are respectively connected to a controller.
  • the first device may be: an electrical conversion device, such as a switching power supply.
  • the preset test item may be: an electrical stress test item.
  • the test instrument can be: an oscilloscope.
  • the controller can be: a computer.
  • the instrument test parameters may be: measurement gear position, oscilloscope bandwidth, trigger level, or sampling mode.
  • the filling step may include:
  • the controller determines whether all test instances of the preset test item are tested and obtains a judgment result
  • the identifier of the test instance and the test data are filled into corresponding positions in the test report template, and the test instance is Marked as an executed test instance, returning to the acquisition step.
  • the controller analyzes all the test data, obtains test results of the preset test item, and performs the test.
  • the result is filled in to the corresponding location in the test report template;
  • the controller outputs the test report template after the test result is filled as a test report of the preset test item.
  • the configuration device includes a programmable power source and an electronic load
  • the test environment parameter includes a power supply parameter and a load parameter
  • the controller transmits the test environment parameter to the configuration device, so that the configuration device can be tested according to the test
  • the environment parameter, the providing the first operating environment to the first device includes:
  • the controller sends the power supply parameter to the programmable power source, so that the configuration device can provide an electrical signal corresponding to the power supply parameter to the first device according to the power supply parameter;
  • the controller transmits the load parameter to the electronic load such that the electronic load can provide a load corresponding to the load parameter to the first device according to the load parameter.
  • the power supply parameter may include an input voltage amplitude and/or type
  • the load parameter may include a load size
  • the embodiment provides a method and apparatus for testing an electrical stress of a switching power supply device.
  • the first device is a switching power supply. This embodiment is intended to solve the above problems;
  • the first object of the present embodiment is to provide a method for testing electrical stress of key components of a power supply product, and converting the traditional manual testing process into an automated manner;
  • a second object of the present embodiment is to provide an electrical stress testing device for a key component of a power supply product
  • control center communication Communication bus, external resources
  • control center and external resources are connected through a communication bus
  • Providing a software development platform (such as Labview, VB, VC, C#, etc.) to develop test software, including an instrument control module, a document generation module, and a human-machine interface module;
  • the instrument control module coordinates the external resources to provide the test environment and obtain test data, and the document is generated.
  • the module records the obtained test data in a certain format and saves it in the Office document;
  • the instrument control module uses a VISA (Virtual Instrument Software Architecture, referred to as "Visa”, that is, a virtual instrument software structure) to program the instrument, and the instrument is controlled by SCPI (Standard Commands for Programmable Instruments). Manual operation and human eye observation of the way to obtain data, into a program-controlled operation;
  • VISA Virtual Instrument Software Architecture
  • SCPI Standard Commands for Programmable Instruments
  • the document generating module uses the ActiveX method to call the Microsoft Office control, realizes the automatic generation of the test report, and automatically inserts the data and the waveform map into the document, and the whole process is completed in the background program, thereby replacing the artificial mouse keyboard. operating;
  • the human-machine interface module adopts Labview graphical programming mode, so that the program can receive the test parameter document edited by the user or the parameters filled in online, and hand over the control of the start and stop of the program to the user. ;
  • the embodiment converts the manual testing process into a program-controlled process by the above-mentioned manner, which has the beneficial effects of saving manpower, reducing the use threshold, and improving the testing efficiency.
  • test software is a power product electrical stress test program developed based on labview (or other programming environments such as VB, VC, C#, etc.), including human machine interface, instrument control, and data processing functions;
  • the control center can use various types of personal or industrial computer equipment;
  • the communication bus can adopt common communication modes such as PXI, VXI, GPIB, RS232, RS485/422, USB, Ethernet, etc.;
  • the external resources include an oscilloscope, a voltage probe, a current probe, an electronic load, and a programmable AC/DC source, power supply to be tested, etc.;
  • the oscilloscope and the probe are connected to corresponding pins of the key components of the power product, and the voltage, current waveform and data are collected;
  • the test software sends the control command to the instrument device through the communication bus, sets the correct test environment, performs test actions, acquires test data, processes and saves the test result.
  • test software controls the instrument device by sending an instruction and acquires the saved data, and the speed is unmatched by the manual operation mode
  • the software defines a standardized test process, professional instruments to ensure the test accuracy. Compared with the manual testing process, the preferred embodiment will improve the testing accuracy to some extent;
  • the test process is reliable. Eliminate the uncertain factors caused by human operation, reduce the probability of mistakes and errors, and improve the reliability of the test environment;
  • the implementation process is:
  • the test environment includes a control center, a communication bus, an electronic load, a programmable AC/DC power supply, an oscilloscope, and a voltage, current probe, and communication cable.
  • a control center which uses the communication bus to control the center and external resources (electronic load, oscilloscope, programmable AC/DC
  • the source is connected in sequence, so that the external resource can establish a hardware connection with the control center;
  • Open the test software select the items to be tested, and set the test parameters and specifications of the object to be tested (according to the specifications of the object to be tested), such as the input voltage range, output load range, etc.
  • test software will issue a control command according to the test parameters, set each instrument device to the required test environment through the communication bus, and return the instrument device measurement data to the program, and then compare and process the test data and the waveform. Get the test results;
  • the test program calls the ActiveX control to create a new blank office document, automatically writes the test environment parameters and generates a report format, inserts the previous test results and waveform diagrams into a specified location, generates a test report, and uploads the test data if necessary.
  • the database To the database;
  • the software architecture is shown in Figure 3.
  • the instrument control module, document generation module and human-machine interface module are integrated through the software development platform.
  • the instrument control module includes VISA, SCPI instruction and program-controlled instrument sub-module, and the document generation module includes ActiveX and Microsoft.
  • Word object model sub-module, human-machine interface module includes state machine/event structure, visual programming and human-computer interaction sub-module;
  • the hardware layer of the instrument control module is composed of a communication bus, and the upper layer adopts the VISA programming mode, and uses the SCPI instruction to establish a communication connection with the instruments to realize the function of transmitting the control command and returning the test data;
  • the document generation module uses AxtiveX technology, invokes Microsoft Office control, and processes the new document (such as FIG. 4), writes text, inserts a picture, creates a form, sets a format, saves, and the like, and manually creates a report document. Implemented in a program-controlled manner;
  • the human-machine interface module uses a software development platform to establish a human-computer interaction interface, as shown in FIG. 6, to pass test parameters to the software and respond to user operations.
  • test software separately checks and resets external resources by sending instructions.
  • the test program needs to perform a power-on check on the power source to be tested to ensure that the power source to be tested is not damaged due to the test process, and abnormal feedback is found to the user in time.
  • FIG. 7 is a structural block diagram of a controller according to an embodiment of the present invention, where the controller includes:
  • the obtaining module 701 is configured to: select a test instance from at least one unexecuted test instance of the preset test item, and obtain test configuration parameters of the test instance, where the test configuration parameter includes a test environment parameter and an instrument test parameter. ;
  • the first sending module 702 is configured to: send the test environment parameter to the configuration device, so that the configuration device can provide the first operating environment to the first device according to the test environment parameter;
  • the second sending module 703 is configured to: when the first device is running in the first operating environment, send a test data query instruction to the test instrument, so that the test device can query the command according to the test data Testing the device, obtaining test data, and reporting the test data to the controller;
  • the receiving module 704 is configured to: receive the test data
  • the filling module 705 is configured to: fill in the identifier of the test instance and the test data into a corresponding position in the test report template, and mark the test instance as an executed test instance, and return to the obtaining step.
  • the first device is respectively connected to a configuration device of an operating environment of the first device and a test device of the device, and the configuration device and the testing device are respectively connected to a controller.
  • the filling module 705 can include:
  • a determining unit configured to: determine, by the controller, whether all test instances of the preset test item are tested, and obtain a judgment result;
  • a returning unit configured to: when the judgment result indicates that all the test instances of the preset test item are not all tested, fill in the identifier of the test instance and the test data into a corresponding position in the test report template, And marking the test instance as an executed test instance, returning to the obtaining step.
  • the controller may further include:
  • the analyzing unit is configured to: when the determining result indicates that all test instances of the preset test item are tested, the controller analyzes all the test data to obtain test results of the preset test item And filling in the test results into the corresponding location in the test report template;
  • an output module configured to: the controller outputs the test report template after the test result is filled as a test report output of the preset test item.
  • the configuration device may include a programmable power supply and an electronic load
  • the test environment parameter includes a power supply parameter and a load parameter
  • the first sending module may include:
  • a first providing unit configured to: send, by the controller, the power supply parameter to the programmable power source, so that the configuration device can provide the first device with a corresponding power supply parameter according to the power supply parameter electric signal;
  • a second providing unit configured to: the controller sends the load parameter to the electronic load, so that the electronic load can provide a load corresponding to the load parameter to the first device according to the load parameter .
  • the power supply parameter may include an input voltage amplitude and/or type
  • the load parameter may include a load size
  • the embodiment of the invention further provides a test system, including a configuration device, a test instrument such as the above controller.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
  • Each device/function module/functional unit in the above embodiments may use a general-purpose computing device. Implementations can be centralized on a single computing device or distributed across a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention realizes the automation of the power device test and improves the test efficiency of the power device.

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Abstract

一种测试方法,包括:所述控制器从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数(101);所述控制器在所述第一设备在第一运行环境下运行时,向所述测试仪器发送测试数据查询指令(103);所述控制器将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例(105)。

Description

测试方法、控制器及测试系统 技术领域
本文涉及测试控制领域,尤其涉及一种测试方法、控制器及测试系统。
背景技术
开关电源的关键器件应包含以下种类但不限于下列内容:输入整流桥、主开关管、输出整流管、输出续流管、钳位管、辅助电源开关管、辅助电源输出整流二极管、大电解电容的纹波电流和电压等。
电应力测试项目如以下所示:
a)器件在产品正常工作时的应力波形;
b)器件在产品输入上、下电时的应力波形;(各种开关机方式)
c)器件在产品输出负载阶跃时的应力波形;
d)器件在产品输出短路保护及撤除后的应力波形;
e)器件在产品输出过流保护时的应力波形;
f)器件在产品输入欠压和过压保护前和保护后恢复时的波形;
g)器件在产品输出过压保护时的波形;
根据中华人民共和国国家军用标准《GJB/Z 35-93元器件降额准则》,应力的定义为:影响元器件失效率的电、热、机械等负载。其中的电方面的负载,即为这里涉及的电应力。
作为开关电源产品中的关键元器件,器件的电应力参数是一个重要的测试指标,直接关联产品的性能及质量,而传统测试方法如下:
1.测试资源选用随意,不同人员选用仪器由于性能上的差异将造成测试结果的不一致;
2.通过仪器设备面板按键一一手动设置输入输出测试环境,设置示波器触发环境,反复手动操作输入开关或仪器旋钮,触发相关应力波形,反复调整触发电平并触发波形寻找测试最大值,(若不能将每次触发波形全部记录下来,则此过程中的曾经出现的最大值波形可能无法重现),记录最后一次 波形;
3.改变仪器测试参数,切换至下一个测试环境,重复以上步骤,完成一个测试项目;
4.改变仪器测试参数,重复以上步骤,完成所有测试项目;
5.人工整理上述测试波形及数据,将数据及波形图逐一填入测试报告文档内的相应位置。
通过以上步骤可以看出,这样不可避免的带来了如下问题:
1.重复性劳动比例高。由于测试目标要求尽可能获取最大值(随机产生),为了达到这个目标,针对单个器件如开关机动作需要重复十几甚至几十次,而对整个开关电源有来说有十几个关键器件,重复的操作,需要占用测试人员大量的时间;
2.测试数据的处理和记录繁琐。测试过程中产生的数据包含波形图和文本、数值,且最大值的出现是不可预料随机出现的,对于手动记录和保存波形的方式,需要花费很大的工作量;
3.仪器操作复杂。不同测试项目需要对仪器设备设定相应的测试条件如电压、电流、及测量档位、示波器带宽、触发电平,采样模式等。在测试过程中需要经常性的切换,任何错误的操作,都将影响测试结果的准确性和真实度,这对测试人员的技术素质和经验要求很高。
发明内容
本发明实施例提供一种测试方法、装置及控制器,以实现电源器件测试的自动化,提高电源器件的测试效率。
一种测试方法,用于测试第一设备的器件,其特征在于,所述第一设备分别与所述第一设备的运行环境的配置设备和所述器件的测试仪器连接,所述配置设备和所述测试仪器分别与控制器连接,所述测试方法包括:
获取步骤,所述控制器从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
第一发送步骤,所述控制器向所述配置设备发送所述测试环境参数;
第二发送步骤,在所述第一设备在第一运行环境下运行时,所述控制器向所述测试仪器发送测试数据查询指令,所述第一运行环境是所述配置设备根据所述测试环境参数向所述第一设备提供的;
接收步骤,所述控制器接收所述测试仪器上报的测试数据,所述测试数据是所述测试仪器根据所述测试数据查询指令对所述第一设备的器件进行测试得到的;
填写步骤,所述控制器将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
可选地,所述填写步骤包括:
所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;
当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
可选地,上述方法还包括:
当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
所述控制器将填写所述测试结果之后的所述测试报告模板作为所述预设测试项目的测试报告输出。
可选地,所述配置设备包括可编程电源和电子负载,所述测试环境参数包括供电参数和负载参数,所述第一运行环境包括:
所述配置设备根据所述供电参数,向所述第一设备提供的与所述供电参数对应的电信号;
所述电子负载根据所述负载参数,向所述第一设备提供的与所述负载参数对应的负载。
可选地,所述供电参数包括输入电压幅度和/或类型,所述负载参数包括负载大小。
一种控制器,包括:
获取模块,设置为:从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
第一发送模块,设置为:向配置设备发送所述测试环境参数;
第二发送模块,设置为:在所述第一设备在所述第一运行环境下运行时,向测试仪器发送测试数据查询指令,所述第一运行环境是所述配置设备根据所述测试环境参数向所述第一设备提供的;
接收模块,设置为:接收所述测试仪器上报的测试数据,所述测试数据是所述测试仪器根据所述测试数据查询指令对所述第一设备的器件进行测试得到的;以及
填写模块,设置为:将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,再触发所述获取模块。
可选地,所述填写模块包括:
判断单元,设置为:所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;以及
返回单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,触发所述获取模块。
可选地,所述控制器还包括:
分析单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
输出模块,设置为:于将填写所述测试结果之后的所述测试报告模板作为所述预设测试项目的测试报告输出。
可选地,所述配置设备包括可编程电源和电子负载,所述测试环境参数 包括供电参数和负载参数,所述第一发送模块包括:
第一提供单元,设置为:向所述可编程电源发送所述供电参数;以及
第二提供单元,设置为:向所述电子负载发送所述负载参数;
所述第一运行环境包括:
所述配置设备根据所述供电参数,向所述第一设备提供的与所述供电参数对应的电信号;
所述电子负载根据所述负载参数,向所述第一设备提供的与所述负载参数对应的负载。
可选地,所述供电参数包括输入电压幅度和/或类型,所述负载参数包括负载大小。
一种测试系统,包括配置设备、测试仪器和上述控制器。
一种计算机可读存储介质,存储有程序指令,当该程序指令被执行时可实现上述方法。
通过本发明实施例的方案,测试项目的待测试实例得以自动执行,实现了电源器件测试的自动化,提高了电源器件的测试效率。
附图概述
图1表示本发明实施例提供的一种测试方法的步骤流程图;
图2表示本发明实施例的实施方式的系统硬件架构图;
图3表示本发明实施例的实施方式的系统软件架构图;
图4表示Labview平台上实现调用Office AxtiveX控件的示例,此示例功能为新建一个office文档,其他更多Office AxtiveX控件功能均可按此示例方式实现;
图5表示Labview平台调用VISA函数,实现下发指令控制泰克示波器测量并读取数据的程序示例,其他外部资源的通讯均可参照此示例;
图6表示本发明实施例的Labview人机界面示意图;
图7表示本发明实施例提供的一种控制器的结构框图。
本发明的实施方式
下面将结合附图及具体实施例对本发明实施例进行详细描述。
图1表示本发明实施例提供的一种测试方法的步骤流程图,参照图1,本发明实施例提供一种测试方法,用于测试第一设备的器件,包括如下步骤:
步骤101,获取步骤,控制器从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
步骤102,第一发送步骤,所述控制器向配置设备发送所述测试环境参数,使得所述配置设备能够根据所述测试环境参数,向所述第一设备提供第一运行环境;
步骤103,第二发送步骤,所述控制器在所述第一设备在所述第一运行环境下运行时,向测试仪器发送测试数据查询指令,使得所述测试仪器能够根据所述测试数据查询指令对所述器件进行测试,得到测试数据,并将所述测试数据上报给所述控制器;
步骤104,接收步骤,所述控制器接收所述测试数据;
步骤105,填写步骤,所述控制器将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
所述第一设备分别与所述第一设备的运行环境的配置设备和所述器件的测试仪器连接,所述配置设备和所述测试仪器分别与控制器连接。
可见,通过上述方式,测试项目的待测试实例得以自动执行,实现了电源器件测试的自动化,提高了电源器件的测试效率。
其中,所述第一设备可以是:电转换设备,比如开关电源。
所述预设测试项目可以是:电应力测试项目。
所述测试仪器可以是:示波器。
所述控制器可以是:计算机。
所述仪器测试参数可以是:测量档位,示波器带宽,触发电平,或采样模式等。
本发明实施例中,所述填写步骤可包括:
所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;
当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
本实施例的方法还可包括:
当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
所述控制器将填写所述测试结果之后的所述测试报告模板作为所述预设测试项目的测试报告输出。
本发明实施例中,可以有:
所述配置设备包括可编程电源和电子负载,所述测试环境参数包括供电参数和负载参数,所述控制器向所述配置设备发送所述测试环境参数,使得所述配置设备能够根据所述测试环境参数,向所述第一设备提供第一运行环境包括:
所述控制器向所述可编程电源发送所述供电参数,使得所述配置设备能够根据所述供电参数,向所述第一设备提供与所述供电参数对应的电信号;
所述控制器向所述电子负载发送所述负载参数,使得所述电子负载能够根据所述负载参数,向所述第一设备提供与所述负载参数对应的负载。
其中,所述供电参数可包括输入电压幅度和/或类型,所述负载参数可包括负载大小。
本实施方式提供一种开关电源器件电应力测试方法和装置。本实施方式中所述第一设备为开关电源。本实施方式旨在解决上述问题;
为此本实施方式的第一个目的在于提出一种电源产品关键器件电应力测试方法,将传统的手动测试流程转化为自动化方式实现;
本实施方式的第二个目的在于提出一种电源产品关键器件电应力测试装置;
为了达到上述的目的,本实施方式的方案主要有三部分(控制中心、通 讯总线、外部资源),按照以下方式实现:
首先,将控制中心与外部资源通过通讯总线连接;
提供一种软件开发平台(如Labview、VB、VC、C#等)开发的测试软件,包含仪器控制模块、文档生成模块、人机界面模块;
将测试需要的参数及测试项目写入人机界面,或者以文档方式导入人机界面模块,然后通过开始按钮启动测试,测试中仪器控制模块协调控制外部资源提供测试环境并获取测试数据,文档生成模块将获取的测试数据按一定格式记录并保存在Office文档内;
所述仪器控制模块,如图5,采用VISA(Virtual Instrument Software Architecture,简称为"Visa",即虚拟仪器软件结构)编程的方式,通过SCPI(Standard Commands for Programmable Instruments)指令控制仪器设备,使得传统手工操作及人眼观察获取数据的方式,转化为程控操作方式;
所述文档生成模块,如图4,采用ActiveX方式调用Microsoft Office控件,实现测试报告的自动生成,并将数据及波形图自动插入文档的功能,整个过程在后台程控完成,以此取代人工鼠标键盘操作;
所述人机界面模块,如图5示例,采用Labview图形化编程方式,使得程序能够接收用户已编辑好的测试参数文档或在线填写的参数,并将程序的开始、停止等操控权交给用户;
本实施方式通过以上所述方式将手动测试过程转化为程控过程,具有节约人力、降低使用门槛,提升测试效率的有益效果。
本实施方式采用以下技术方案:
提供测试软件、控制中心、通讯总线和外部资源,依次按图2连接各部分;
所述的测试软件是基于labview(或其他编程环境如VB、VC、C#等)开发的电源产品电应力测试程序,包含人机界面、仪器控制、数据处理功能;
所述的控制中心,可以采用各种类型的个人或工业电脑设备;
所述的通讯总线,可采用PXI、VXI、GPIB、RS232、RS485/422、USB、Ethernet等常见通讯方式;
所述的外部资源包括示波器、电压探头、电流探头、电子负载、可编程 交流/直流源、待测电源产品等;
通过所述的可编程交流/直流源对所述的待测电源供给不同幅度的电压信号,使其能够正常上电,具体参数须根据所述待测电源的性能指标来定;
通过所述的电子负载对所述的待测电源提供不同程度的负载电流,使其模拟真实环境的负载情况,具体参数须根据所述待测电源的性能指标来定;
通过所述的示波器及探头连接至所述的电源产品关键器件的相应引脚,采集电压、及电流波形及数据;
通过所述的通讯总线将控制中心与所述的可编程交流/直流源、电子负载、示波器连接;
通过所述的测试软件通过通讯总线下发控制指令给所述的仪器设备,设置正确的测试环境,执行测试动作、获取测试数据、处理并保存测试结果。
本实施方式优点如下:
1、节省人力资源。针对单个器件,操作人员只需将仪器与器件引脚连接好并填写测试参数即可,程序运行只后无需人员值守;
2、提升测试效率。所述的测试软件以发送指令的方式控制仪器设备并获取保存数据,其速度是手动操作方式所无法比拟的;
3、提高测试准确性,软件定义了标准化的测试流程,专业的仪器保证了测试精度。相对于手动测试过程,本较佳实施方式会将一定程度上提高测试准确性;
4、测试过程可靠。排除了人为操作所带来的不确定因素,减少失误及错误的概率,提高测试环境的可靠率;
5、使用门槛低。使用人员不需要具备专业的电源及测试经验,不用了解各种测试仪器的操作。只需要会最基本的电脑操作即可。
下面结合附图对本发明实施例的开关电源关键器件电应力测试方法作以下详细说明。
其实现过程为:
如附图2中所示,首先搭建测试环境,该测试环境包括控制中心、通讯总线,电子负载、可编程交/直流电源、示波器及电压、电流探头,通讯线缆。其中用通讯总线将控制中心与外部资源(电子负载、示波器、可编程交/直流 源)依次连接,使上述外部资源能够与控制中心建立通讯上的硬件连接;
将所述电流及电压探头与待测电源上开关器件的相关测试点连接,使得开关器件的波形能够被示波器捕获;
将所述可编程交/直流源接至待测电源的输入端,给待测电源供电,具体选择交流输入或直流输入要根据待测电源输入类型而定;
将待测电源的输出端与所述电子负载接入端子连接,使电子负载设备能够给待测电源提供测试中需要的负载电流;
打开测试软件,选择需要测试的项目,并设定待测物的测试参数及规格指标(根据待测物的规格书),如输入电压范围、输出负载范围等;
运行测试程序,所述测试软件会根据测试参数下发控制指令,通过通讯总线设置各仪器设备至要求的测试环境,并将仪器设备测量数据返回给程序,程序再对测试数据及波形比较、处理得出测试结果;
所述测试程序,调用ActiveX控件新建空白office文档,自动写入测试环境参数及生成报告格式,将前面的测试结果及波形图插入至指定位置,生成测试报告,如果有需要也可将测试数据上传至数据库;
其软件架构如图3所示,通过软件开发平台整合仪器控制模块、文档生成模块、人机界面模块;其中,仪器控制模块包括VISA、SCPI指令和程控仪器子模块,文档生成模块包括ActiveX和Microsoft Word对象模型子模块,人机界面模块包括状态机/事件结构、可视化编程和人机交互子模块;
如图5,所述仪器控制模块硬件层由通讯总线构成,上层采用VISA编程方式,运用SCPI指令与所述各仪器建立通讯连接,实现传递控制命令并返回测试数据的功能;
所述文档生成模块运用AxtiveX技术,调用微软Office控件,将文档新建(如附图4)、写入文本、插入图片、建立表格、设置格式、保存等功能程控化,将人工创建报告文档的过程以程控方式实现;
所述人机界面模块,运用软件开发平台,建立人机交互接口,如图6,将测试参数传递给软件并响应用户的操作。
在测试的开始及结束,测试软件通过发送指令分别进行外部资源的检查和复位动作;
在测试过程中的某些关键点,测试程序需要对待测电源进行上电检查,以确保待测电源没有因测试过程而损坏,并及时发现异常反馈给用户。
图7表示本发明实施例提供的一种控制器的结构框图,所述控制器包括:
获取模块701,设置为:从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
第一发送模块702,设置为:向所述配置设备发送所述测试环境参数,使得所述配置设备能够根据所述测试环境参数,向所述第一设备提供第一运行环境;
第二发送模块703,设置为:在所述第一设备在所述第一运行环境下运行时,向所述测试仪器发送测试数据查询指令,使得所述测试仪器能够根据所述测试数据查询指令对所述器件进行测试,得到测试数据,并将所述测试数据上报给所述控制器;
接收模块704,设置为:接收所述测试数据;
填写模块705,设置为:将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
所述第一设备分别与所述第一设备的运行环境的配置设备和所述器件的测试仪器连接,所述配置设备和所述测试仪器分别与控制器连接。
可见,通过上述方式,测试项目的待测试实例得以自动执行,实现了电源器件测试的自动化,提高了电源器件的测试效率。
其中,所述填写模块705可包括:
判断单元,设置为:所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;
返回单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
所述控制器还可包括:
分析单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
输出模块,设置为:所述控制器将填写所述测试结果之后的所述测试报告模板作为所述预设测试项目的测试报告输出。
本发明实施例中,所述配置设备可以包括可编程电源和电子负载,所述测试环境参数包括供电参数和负载参数,所述第一发送模块可包括:
第一提供单元,设置为:所述控制器向所述可编程电源发送所述供电参数,使得所述配置设备能够根据所述供电参数,向所述第一设备提供与所述供电参数对应的电信号;
第二提供单元,设置为:所述控制器向所述电子负载发送所述负载参数,使得所述电子负载能够根据所述负载参数,向所述第一设备提供与所述负载参数对应的负载。
其中,所述供电参数可包括输入电压幅度和/或类型,所述负载参数可包括负载大小。
本发明实施例还提供一种测试系统,包括包括配置设备、测试仪器如上述控制器。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来 实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。
工业实用性
本发明实施例实现了电源器件测试的自动化,提高了电源器件的测试效率。

Claims (12)

  1. 一种测试方法,用于测试第一设备的器件,其特征在于,所述第一设备分别与所述第一设备的运行环境的配置设备和所述器件的测试仪器连接,所述配置设备和所述测试仪器分别与控制器连接,所述测试方法包括:
    获取步骤,所述控制器从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
    第一发送步骤,所述控制器向所述配置设备发送所述测试环境参数;
    第二发送步骤,在所述第一设备在第一运行环境下运行时,所述控制器向所述测试仪器发送测试数据查询指令,所述第一运行环境是所述配置设备根据所述测试环境参数向所述第一设备提供的;
    接收步骤,所述控制器接收所述测试仪器上报的测试数据,所述测试数据是所述测试仪器根据所述测试数据查询指令对所述第一设备的器件进行测试得到的;
    填写步骤,所述控制器将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
  2. 根据权利要求1所述的测试方法,其中,所述填写步骤包括:
    所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;
    当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,返回所述获取步骤。
  3. 根据权利要求2所述的测试方法,还包括:
    当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
    所述控制器将填写所述测试结果之后的所述测试报告模板作为所述预设 测试项目的测试报告输出。
  4. 根据权利要求1所述的测试方法,其中,所述配置设备包括可编程电源和电子负载,所述测试环境参数包括供电参数和负载参数,所述第一运行环境包括:
    所述配置设备根据所述供电参数,向所述第一设备提供的与所述供电参数对应的电信号;
    所述电子负载根据所述负载参数,向所述第一设备提供的与所述负载参数对应的负载。
  5. 根据权利要求4所述的测试方法,其中,所述供电参数包括输入电压幅度和/或类型,所述负载参数包括负载大小。
  6. 一种控制器,包括:
    获取模块,设置为:从预设测试项目的至少一个未执行的测试实例中选择一测试实例,并获取所述测试实例的测试配置参数,所述测试配置参数包括测试环境参数和仪器测试参数;
    第一发送模块,设置为:向配置设备发送所述测试环境参数;
    第二发送模块,设置为:在所述第一设备在所述第一运行环境下运行时,向测试仪器发送测试数据查询指令,所述第一运行环境是所述配置设备根据所述测试环境参数向所述第一设备提供的;
    接收模块,设置为:接收所述测试仪器上报的测试数据,所述测试数据是所述测试仪器根据所述测试数据查询指令对所述第一设备的器件进行测试得到的;以及
    填写模块,设置为:将所述测试实例的标识和所述测试数据填写到测试报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,再触发所述获取模块。
  7. 根据权利要求6所述的控制器,其中,所述填写模块包括:
    判断单元,设置为:所述控制器判断所述预设测试项目的全部测试实例是否都测试完成,获取判断结果;以及
    返回单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例没有都测试完成时,将所述测试实例的标识和所述测试数据填写到测试 报告模板中的相应位置,并将所述测试实例标记为已执行的测试实例,触发所述获取模块。
  8. 根据权利要求7所述的控制器,还包括:
    分析单元,设置为:当所述判断结果表明所述预设测试项目的全部测试实例都测试完成时,所述控制器对全部所述测试数据进行分析,得到所述预设测试项目的测试结果,并将所述测试结果填写到测试报告模板中的相应位置;
    输出模块,设置为:于将填写所述测试结果之后的所述测试报告模板作为所述预设测试项目的测试报告输出。
  9. 根据权利要求6所述的控制器,其中,所述配置设备包括可编程电源和电子负载,所述测试环境参数包括供电参数和负载参数,所述第一发送模块包括:
    第一提供单元,设置为:向所述可编程电源发送所述供电参数;以及
    第二提供单元,设置为:向所述电子负载发送所述负载参数;
    所述第一运行环境包括:
    所述配置设备根据所述供电参数,向所述第一设备提供的与所述供电参数对应的电信号;
    所述电子负载根据所述负载参数,向所述第一设备提供的与所述负载参数对应的负载。
  10. 根据权利要求9所述的控制器,其中,所述供电参数包括输入电压幅度和/或类型,所述负载参数包括负载大小。
  11. 一种测试系统,包括配置设备、测试仪器如权利要求6至10中任一项所述的控制器。
  12. 一种计算机可读存储介质,存储有程序指令,当该程序指令被执行时可实现权利要求1-5任一项所述的方法。
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