阅读说明：本技术 多功能ntc温度传感器参数测试系统 (Multifunctional NTC temperature sensor parameter testing system ) 是由 刘刚 王梅凤 唐敏 高进 于 2020-12-07 设计创作，主要内容包括：本发明公开了多功能NTC温度传感器参数测试系统,包括ARM处理板模块、嵌入式平台、切换开关、电源管理模块、参数测试模块、信息收发模块、人机交互模块、温度测试模块、打印模块和多接口及转换模块；使用时,参数测试模块通过标称阻值、耐压系数、耗散系数、响应时间、施加电压、绝缘电阻共六项性能指标的测试原理及现有测试方法,对部分模块的测试方法进行改进,在所述ARM处理器的控制下,对多个测试指标数据进行采集与处理,存储和显示,参数测试模块处理后的数据分三路,一路送入所述语音模块,另一路送入所述液晶显示面板,最后一路送入外部存储设备如SD卡进行存储,并将系统时间和测试数据进行打包,实现同步存储。(The invention discloses a multifunctional NTC temperature sensor parameter testing system, which comprises an ARM processing board module, an embedded platform, a change-over switch, a power management module, a parameter testing module, an information transceiving module, a man-machine interaction module, a temperature testing module, a printing module and a multi-interface and conversion module; when the parameter testing module is used, the testing method of a part of modules is improved through a testing principle of six performance indexes including nominal resistance, voltage-withstanding coefficient, dissipation coefficient, response time, applied voltage and insulation resistance and an existing testing method, under the control of the ARM processor, data of a plurality of testing indexes are collected, processed, stored and displayed, the data processed by the parameter testing module are divided into three paths, one path is sent to the voice module, the other path is sent to the liquid crystal display panel, the last path is sent to external storage equipment such as an SD card for storage, and system time and the testing data are packaged to realize synchronous storage.)

1. Multifunctional NTC temperature sensor parameter test system, including ARM processing board module, embedded platform, change over switch, power management module, parameter test module, information transceiver module, man-machine interaction module, temperature test module, print module and many interfaces and conversion module, its characterized in that:

the man-machine interaction module comprises a second alarm, a storage module, a liquid crystal display panel and a voice module;

the human-computer interaction module is in interactive connection with the information transceiver module, the information transceiver module is in interactive connection with the ARM processing board module, and the ARM processing board module comprises a power supply module, a clock circuit module, a voltage control module, an ARM processor and a memory;

the ARM processing board module is connected with the multi-interface and conversion module in an interactive mode, the multi-interface and conversion module is connected with the parameter testing module in an interactive mode, and the parameter testing module comprises a voltage withstanding testing module, an insulation resistance testing module, an applied voltage testing module, a resistance value testing module, a dissipation coefficient testing module and a response time testing module;

the parameter testing module is interactively connected with the power management module, the power management module is connected with a change-over switch, and the change-over switch is connected with the ARM processing board module;

the ARM processing board module is interactively connected with the embedded platform, and the embedded platform is interactively connected with the power management module;

the parameter testing module improves the testing method of a part of modules through the testing principle of six performance indexes of nominal resistance, voltage withstanding coefficient, dissipation coefficient, response time, applied voltage and insulation resistance and the existing testing method, and collects and processes, stores and displays a plurality of testing index data under the control of the ARM processor;

the data processed by the parameter testing module is divided into three paths, one path is sent to the voice module to play a certain index exceeding a threshold value, a product disqualification alarm is prompted, sorting is achieved, the other path is sent to the liquid crystal display panel, a measuring result is checked in a multi-mode, data of a single index testing module and total index testing summary data are checked, and the last path is sent to an external storage device such as an SD card for storage, and system time and testing data are packaged to achieve synchronous storage.

2. The multifunctional NTC temperature sensor parameter testing system of claim 1, characterized in that: ARM processing module with temperature test module interconnect, temperature test module includes fan, heater, refrigeration module and first alarm.

3. The multifunctional NTC temperature sensor parameter testing system of claim 1, characterized in that: the ARM processing board module is connected with the printing module.

4. The multifunctional NTC temperature sensor parameter testing system of claim 1, characterized in that: the power management module analyzes the power supply and test delay requirements of the test method in the parameter test module in detail, and realizes the programming power supply of the power management module through the embedded platform.

5. The multifunctional NTC temperature sensor parameter testing system of claim 1, characterized in that: the human-computer interaction module is used for managing and controlling the power management module based on a visual interaction interface developed and designed on the ARM processing board module, controlling the selector switch through the human-computer interaction module, and turning on power supply of a corresponding test module in the parameter test module according to requirements.

6. The multifunctional NTC temperature sensor parameter testing system of claim 3, characterized in that: and the printing module is used for selecting the test data from the test result through the display screen interface to print.

7. The multifunctional NTC temperature sensor parameter testing system of claim 2, characterized in that: the first alarm is an audible and visual alarm, and the second alarm is a voice alarm.

8. The multifunctional NTC temperature sensor parameter testing system of claim 2, characterized in that: the ARM processing board module is externally connected with the temperature testing module, and temperature control is carried out through the heater and the refrigerating module in the temperature testing module, so that testing of a temperature detecting function is completed.

9. The multifunctional NTC temperature sensor parameter testing system of claim 1, characterized in that: the ARM processor and the voltage control module are core control modules and are mainly used for starting, acquiring parameters, processing and displaying test functions of the parameter test modules.

Technical Field

The invention relates to the technical field of sensor testing, in particular to a multifunctional NTC temperature sensor parameter testing system.

Background

As is known, NTC thermistors (sensors) are sensitive components that are developed early, of various types and mature, and are widely used in various fields such as household appliances, automobile air conditioners, water temperature sensors, intake air temperature sensors, engines, switching power supplies, frequency converters, electric boilers, and the like. In these applications, it is a core component of the temperature controller, and whether its performance meets the specification has a large influence on the quality of the product. Therefore, the electrical performance test of the NTC temperature sensor before factory shipment is very important. The electrical performance test of the NTC thermistor (sensor) generally includes the test of the nominal resistance value, B value, dissipation coefficient, response time, voltage resistance, insulation performance and the like of the thermistor. These tests are performed by special testing instruments, and are performed by corresponding testing instruments, such as a resistance tester, a withstand voltage tester, an insulation performance tester, and the like. At present, the market is basically the tester with single function, so that the performance test is time-consuming and labor-consuming, and the centralized storage, statistics and the like of test data are inconvenient;

however, the existing test of the NTC temperature sensor has certain problems:

at present, most instruments for testing the thermal sensitive electronic performance are available, and many companies develop the products, but the instruments are generally single-function testers, and no tester capable of simultaneously detecting parameters of multiple NTC temperature sensors exists in the market.

From the use perspective, sensor manufacturers generally adopt the tester with the single function to test the performance parameters of the thermistor element in a time-sharing manner, which often needs a large amount of manpower in a flow line manner, so that the test efficiency is low, and meanwhile, the problems of test data dispersion, difficulty in statistics and the like exist.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a multifunctional NTC temperature sensor parameter testing system.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: multifunctional NTC temperature sensor parameter test system, including ARM processing board module, embedded platform, change over switch, power management module, parameter test module, information transceiver module, man-machine interaction module, temperature test module, print module and many interfaces and conversion module:

the man-machine interaction module comprises a second alarm, a storage module, a liquid crystal display panel and a voice module;

the human-computer interaction module is in interactive connection with the information transceiver module, the information transceiver module is in interactive connection with the ARM processing board module, and the ARM processing board module comprises a power supply module, a clock circuit module, a voltage control module, an ARM processor and a memory;

the ARM processing board module is connected with the multi-interface and conversion module in an interactive mode, the multi-interface and conversion module is connected with the parameter testing module in an interactive mode, and the parameter testing module comprises a voltage withstanding testing module, an insulation resistance testing module, an applied voltage testing module, a resistance value testing module, a dissipation coefficient testing module and a response time testing module;

the parameter testing module is interactively connected with the power management module, the power management module is connected with a change-over switch, and the change-over switch is connected with the ARM processing board module;

the ARM processing board module is interactively connected with the embedded platform, and the embedded platform is interactively connected with the power management module;

the parameter testing module improves the testing method of a part of modules through the testing principle of six performance indexes of nominal resistance, voltage withstanding coefficient, dissipation coefficient, response time, applied voltage and insulation resistance and the existing testing method, and collects and processes, stores and displays a plurality of testing index data under the control of the ARM processor;

the data processed by the parameter testing module is divided into three paths, one path is sent to the voice module to play a certain index exceeding a threshold value, a product disqualification alarm is prompted, sorting is achieved, the other path is sent to the liquid crystal display panel, a measuring result is checked in a multi-mode, data of a single index testing module and total index testing summary data are checked, and the last path is sent to an external storage device such as an SD card for storage, and system time and testing data are packaged to achieve synchronous storage.

Preferably, the ARM processing module is interactively connected with the temperature testing module, and the temperature testing module comprises a fan, a heater, a refrigerating module and a first alarm.

Preferably, the ARM processing board module is connected with the printing module.

Preferably, the power management module analyzes the requirements of power supply and test delay of the test method in the parameter test module in detail, and realizes the programming power supply of the power management module through the embedded platform.

Preferably, the human-computer interaction module is used for managing and controlling the power management module based on a visual interaction interface developed and designed on the ARM processing board module, controlling the selector switch through the human-computer interaction module, and turning on power supply of a corresponding test module in the parameter test module according to requirements.

Preferably, the printing module is used for selecting the test data from the test result through a display screen interface to print.

Preferably, the first alarm is an audible and visual alarm, and the second alarm is a voice alarm.

Preferably, the ARM processing board module is externally connected with the temperature testing module, and the temperature of the heater and the refrigeration module in the temperature testing module is controlled to complete the test of the temperature detection function.

Preferably, the ARM processor and the voltage control module are core control modules and are mainly used for starting, acquiring, processing and displaying test functions of the parameter test modules.

(III) advantageous effects

Compared with the prior art, the invention provides a multifunctional NTC temperature sensor parameter testing system, which has the following beneficial effects:

the invention has various types of test data of the performance parameters of the sensor, has comprehensive test, can realize the measurement, processing and display of six performance parameter data of nominal resistance, dissipation coefficient, response time, withstand voltage, insulating property and applied voltage, and can realize the rapid sorting of the temperature sensor.

The invention improves the test method of partial performance indexes from the aspects of test environment and conditions, test automation and the like, and can greatly improve the test efficiency and the measurement precision.

The invention can realize the storage of the temperature sensor data and the printing of the test result, the test result is visual, and the requirements of later data analysis and management of companies and manufacturers can be met.

And fourthly, the management control of the power management module is realized through the human-computer interaction module, the change-over switch is controlled through the human-computer interaction module, and the power supply of the corresponding test module in the parameter test module is turned on as required, so that the test process is more visual and convenient.

Drawings

FIG. 1 is a flow chart of the system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1, the present invention provides a technical solution: multifunctional NTC temperature sensor parameter test system, including ARM processing board module, embedded platform, change over switch, power management module, parameter test module, information transceiver module, man-machine interaction module, temperature test module, print module and many interfaces and conversion module:

the man-machine interaction module comprises a second alarm, a storage module, a liquid crystal display panel and a voice module;

the human-computer interaction module is in interactive connection with the information transceiver module, the information transceiver module is in interactive connection with the ARM processing board module, and the ARM processing board module comprises a power supply module, a clock circuit module, a voltage control module, an ARM processor and a memory;

the ARM processing board module is interactively connected with the multi-interface and conversion module, the multi-interface and conversion module is interactively connected with the parameter testing module, and the parameter testing module comprises a voltage withstanding testing module, an insulation resistance testing module, an applied voltage testing module, a resistance value testing module, a dissipation coefficient testing module and a response time testing module;

the parameter testing module is interactively connected with the power management module, the power management module is connected with the change-over switch, and the change-over switch is connected with the ARM processing board module;

the ARM processing board module is interactively connected with the embedded platform, and the embedded platform is interactively connected with the power management module;

when the parameter testing module is used, the testing method of a part of modules is improved by the aid of a testing principle of six performance indexes including nominal resistance, voltage-withstanding coefficient, dissipation coefficient, response time, applied voltage and insulation resistance and an existing testing method, and a plurality of testing index data are collected, processed, stored and displayed under the control of an ARM processor;

the data processed by the parameter testing module is divided into three paths, one path is sent to the voice module to realize that a certain index exceeds a threshold value, the unqualified product alarming is prompted and the sorting is realized, the other path is sent to the liquid crystal display panel to check the measuring result in a multiple mode, check the data of a single index testing module and the total index testing summary data, and the last path is sent to an external storage device such as an SD card for storage, and packs the system time and the testing data to realize the synchronous storage.

In this embodiment, specifically: the ARM processing module is in interactive connection with the temperature testing module, and the temperature testing module comprises a fan, a heater, a refrigeration module and a first alarm; the temperature tester module can perform temperature sensing tests on the temperature sensor.

In this embodiment, specifically: the ARM processing board module is connected with the printing module; the printing module can print and display the test data, the test process and the information in the memory, so that the user can record conveniently.

In this embodiment, specifically: the power management module analyzes the power supply and test delay requirements of the test method in the parameter test module in detail, and realizes the programming power supply of the power management module through the embedded platform.

In this embodiment, specifically: the human-computer interaction module is used for managing and controlling the power management module based on a visual interaction interface developed and designed on the ARM processing board module, controlling the selector switch through the human-computer interaction module, and turning on power supply of a corresponding test module in the parameter test module according to requirements.

In this embodiment, specifically: and the printing module is used for selecting the test data from the test result through the display screen interface to print.

In this embodiment, specifically: the first alarm is an audible and visual alarm, and the second alarm is a voice alarm; can send out the police dispatch newspaper through first alarm and second alarm when man-machine interaction module and temperature test module operation are unusual, warn operating personnel to module detection maintenance.

In this embodiment, specifically: the ARM processing board module is externally connected with a temperature testing module, and temperature control is carried out through a heater and a refrigerating module in the temperature testing module, so that testing of a temperature detecting function is completed.

In this embodiment, specifically: the ARM processor and the voltage control module are core control modules and are mainly used for starting, acquiring, processing and displaying test functions of the parameter test modules.

In summary, the working principle and working process of the multifunctional NTC temperature sensor parameter testing system are that, when in use, firstly, the embedded ARM processing board module is taken as a development platform, and development is carried out by combining a plurality of interfaces and a plurality of conversion modules, the system is mainly divided into three parts, including a power supply management module, a parameter testing module of a plurality of testing methods, an ARM processor and a voltage control module, a man-machine interaction module in the invention is based on a visual interaction interface developed and designed on the ARM processing board module, management and control are carried out on the power supply management module, a change-over switch is controlled by the man-machine interaction module, and power supply of a corresponding testing module in the parameter testing module is turned on according to requirements, so that the testing process is more visual and convenient, wherein the ARM processor and the voltage control module are core control modules and are mainly used for turning on, turning on and switching on testing functions of, Parameter collection, processing and display, the power management module analyzes the power supply and test delay requirements of the test method in the parameter test module in detail, and realizes the programming power supply of the power management module through an embedded platform, the parameter test module improves the test method of partial modules through the test principle of six performance indexes of nominal resistance, voltage resistance coefficient, dissipation coefficient, response time, applied voltage and insulation resistance and the existing test method, can realize the rapid sorting of temperature sensors through the measurement, processing and display of six performance parameter data of nominal resistance, dissipation coefficient, response time, voltage resistance, insulation performance and applied voltage, collects and processes a plurality of test index data under the control of an ARM processor, improves the test method of partial performance indexes from the aspects of test environment and conditions, test automation and the like, the invention can greatly improve the testing efficiency and the measuring precision, store and display, the data processed by the parameter testing module is divided into three paths, one path is sent to the voice module to realize that a certain index exceeds a threshold value to prompt the unqualified alarm of the product and realize the sorting, the other path is sent to the liquid crystal display panel to check the measuring result in a multiple mode, check the data of a single index testing module and the data of the total index test summary, the last path is sent to an external storage device such as an SD card for storage, and packs the system time and the testing data to realize the synchronous storage, in the invention, the printing module can print and display the testing data, the testing process and the information in the memory, is convenient for the user to record, and the testing result is visual, and simultaneously, the requirements of later data analysis and management of the company and the manufacturer can be met, and simultaneously, the alarm can be sent out when the man-machine interaction module and the temperature testing module operate abnormally through the first alarm and and the alarm is used for warning an operator to detect and maintain the components in the module.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.