CN101819285A - Detection device of nuclear and earthquake instrument system - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及一种核电地震仪表系统检测装置。The invention relates to a detection device for a nuclear power seismic instrument system.
技术背景technical background
核电站地震仪表系统运行的可靠性，直接关系着核电站的安全运行，因此，需定期对系统各项参数进行检测与校验。地震仪表系统的检测是一个十分繁琐的工作，需要检测系统多项重要参数，现有的检测方式都采用单一的检测方式，分开检测系统频响、加速度触发阈值、系统组件运行时表面辐射温度以及强震仪的标定检查，测试过程需要携带多台检测设备，占用较多的现场空间；由于设备相互独立，导致接线拆装复杂，供电要求较高，现场使用困难。The reliability of the operation of the nuclear power plant seismic instrument system is directly related to the safe operation of the nuclear power plant. Therefore, it is necessary to regularly test and verify the various parameters of the system. The detection of the seismic instrument system is a very cumbersome task, which needs to detect many important parameters of the system. The existing detection methods adopt a single detection method, which separately detects the system frequency response, acceleration trigger threshold, surface radiation temperature of system components during operation, and For the calibration inspection of strong motion instruments, multiple testing devices need to be carried during the test process, which takes up a lot of on-site space; because the devices are independent of each other, the wiring is complicated to disassemble and assemble, the power supply requirements are high, and it is difficult to use on-site.
发明内容Contents of the invention
本发明旨在提供一种核电地震仪表系统的一体化检测装置，用于解决现有检测方法单一，携带不便，占用空间大，检测实施复杂等问题。本装置具有以下几个显著的优点：The present invention aims to provide an integrated detection device for a nuclear power seismic instrument system, which is used to solve the existing problems of single detection method, inconvenient portability, large space occupation, and complicated detection implementation. This device has the following significant advantages:
1.将核电地震仪表系统三个重要参数：地震加速度触发阈值校验、采集通道的频率响应测试以及强震仪组件标定响应测试工作集成于一体，大大简化了测试过程与测试设备。1. Integrate three important parameters of the nuclear power seismic instrument system: seismic acceleration trigger threshold verification, frequency response test of acquisition channels, and calibration response test of strong motion instrument components, which greatly simplifies the test process and test equipment.
2.系统集成了数字频率合成器(DDS)信号发生模块，可非常灵活的发送超低频的正弦信号以及其他要求的交流与直流信号，进行阈值触发校验测试与采集通道频响测试。2. The system integrates a digital frequency synthesizer (DDS) signal generation module, which can flexibly send ultra-low frequency sine signals and other required AC and DC signals, and perform threshold trigger verification tests and acquisition channel frequency response tests.
3.输入信号与输出信号可直接通过数字信号处理器(DSP)控制AD转换模块进行实时采集，并将结果显示在液晶显示器上。3. The input signal and output signal can be directly collected through the digital signal processor (DSP) to control the AD conversion module for real-time acquisition, and the result is displayed on the liquid crystal display.
4.采用带吸盘的无线通讯温度模块测量地震仪表系统组件运行时的辐射温度，移动方便，可吸附在组件的任何表面；同时由于通讯手段为红外方式，不会对设备运行产生电磁干扰。4. The wireless communication temperature module with suction cup is used to measure the radiation temperature of the components of the seismic instrument system during operation. It is easy to move and can be adsorbed on any surface of the component. At the same time, because the communication means is infrared, it will not cause electromagnetic interference to the operation of the equipment.
本发明不仅仅使用在核电系统，还可用于其他类似地震仪表系统的检测。The invention is not only used in nuclear power systems, but also can be used in the detection of other similar seismic instrument systems.
附图说明Description of drawings
图1为本装置的结构示意图Figure 1 is a schematic diagram of the structure of the device
具体实施方式Detailed ways
如图1所示，核电地震仪表系统检测装置由DSP、单片机、DDS信号发生器、AD转换器、液晶显示器、键盘、温度探头、红外通讯模块以及输入输出接口组成，对核电地震仪表系统各项参数的检测方式如下：As shown in Figure 1, the detection device of the nuclear power seismic instrument system is composed of DSP, single-chip microcomputer, DDS signal generator, AD converter, liquid crystal display, keyboard, temperature probe, infrared communication module and input and output interfaces. The parameters are detected as follows:
(1)地震加速度触发阈值校验：本装置中所述的输入输出接口有三路差分电压信号输出通道。将地震仪表系统的采集模块与本装置对应通道连接，通过键盘选择“触发阈值校验”测试项，设定阈值大小与频率后，单片机控制DDS信号发生器输出电压信号，让信号幅度在设定阈值缓慢浮动；AD转换器实时采集输出接口信号，传送到DSP中进行计算分析。一旦触发地震事件，地震仪表系统发出的报警信号便被本装置接收，触发时输入到地震仪表系统采集通道的电压值便被记录下来，通过DSP计算出对应的加速度值以及误差大小，传送到液晶显示器输出显示。(1) Earthquake acceleration trigger threshold verification: The input and output interfaces described in this device have three differential voltage signal output channels. Connect the acquisition module of the seismic instrument system to the corresponding channel of this device, select the test item "trigger threshold value verification" through the keyboard, set the threshold value and frequency, and the single-chip computer controls the DDS signal generator to output voltage signals, so that the signal amplitude is within the set value. The threshold floats slowly; the AD converter collects the output interface signal in real time and transmits it to the DSP for calculation and analysis. Once an earthquake event is triggered, the alarm signal sent by the seismic instrument system will be received by the device, and the voltage value input to the acquisition channel of the seismic instrument system will be recorded when triggered, and the corresponding acceleration value and error size will be calculated by DSP and sent to the LCD The monitor output is displayed.
(2)采集通道的频率响应测试：按照触发阈值校验测试方式连接本装置，通过键盘输入信号幅度、频率以及扫频步长，选择频率响应测试功能后，单片机控制DDS信号发生器输出电压信号，电压信号自动从0.05Hz-33Hz进行扫频输出，并按步长逐步增加信号频率，AD转换器实时采集输出接口信号，传送到DSP中，DSP对信号的频率与幅值进行计算判断，单片机根据计算结果修正输出信号保证信号精度；如果需要观察特定频率的响应测试，可通过键盘输入定点频率输出模式。扫频响应测试过程通过通讯端口传送到计算机，与核电地震仪表系统记录的结果进行对比，计算频响性能。(2) Frequency response test of the acquisition channel: connect the device according to the trigger threshold verification test method, input the signal amplitude, frequency and frequency sweep step through the keyboard, select the frequency response test function, and the single-chip microcomputer controls the DDS signal generator to output the voltage signal , the voltage signal is automatically swept and output from 0.05Hz-33Hz, and the signal frequency is gradually increased according to the step size. The AD converter collects the output interface signal in real time and transmits it to the DSP. The DSP calculates and judges the frequency and amplitude of the signal. Correct the output signal according to the calculation result to ensure the signal accuracy; if you need to observe the response test of a specific frequency, you can enter the fixed-point frequency output mode through the keyboard. The frequency sweep response test process is transmitted to the computer through the communication port, and compared with the results recorded by the nuclear power seismic instrument system, the frequency response performance is calculated.
(3)强震仪组件标定响应测试：本装置中所述的输入输出接口留有强震仪电缆对接接口，将强震仪信号输入接头连接在输入输出接口上，本装置的单片机中存有多种核电地震仪表系统强震仪组件，通过键盘选择传感器型号，启动标定响应测试，单片机控制控制DDS信号发生器输出对应型号强震仪的标定波形，传感器返回的响应信号由AD转换器采集后传送到DSP，进行传感器响应精度、阻尼比以及故有周期的计算，计算结果显示在液晶屏上。(3) Calibration response test of the strong motion instrument components: The input and output interfaces described in this device have a docking interface for the strong motion instrument cable, and the signal input connector of the strong motion instrument is connected to the input and output interface. A variety of nuclear power seismic instrument system strong motion instrument components, select the sensor model through the keyboard, start the calibration response test, the single-chip microcomputer controls the DDS signal generator to output the calibration waveform of the corresponding model strong motion instrument, and the response signal returned by the sensor is collected by the AD converter Send it to DSP to calculate the sensor response accuracy, damping ratio and cycle, and the calculation results are displayed on the LCD screen.
(4)地震仪表系统组件运行表面辐射温度检测：本装置所述的无线温度检测元件带有真空吸盘，可以吸附在系统组件表面，同时保证温度探头与组件表面良好接触。通过键盘选取表面辐射温度检测功能，将温度探头吸附在待测组件表面，打开电源开关，此时温度检测元件将通过红外线通讯方式持续传送测量温度，测量结果传送到单片机，通过液晶屏显示测量结果。(4) Radiation temperature detection on the operating surface of the seismic instrument system components: the wireless temperature detection element described in this device has a vacuum suction cup, which can be adsorbed on the surface of the system components, while ensuring good contact between the temperature probe and the component surface. Select the surface radiation temperature detection function through the keyboard, attach the temperature probe to the surface of the component to be tested, and turn on the power switch. At this time, the temperature detection element will continuously transmit the measured temperature through infrared communication, and the measurement result will be transmitted to the single-chip microcomputer, and the measurement result will be displayed on the LCD screen. .
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103033854A (en) * | 2012-12-12 | 2013-04-10 | 中国地震局地震研究所 | Analog seismic signal generator |
| CN103454698A (en) * | 2013-09-11 | 2013-12-18 | 东华理工大学 | Online fault detection system of three-dimensional electrical resistivity acquisition system in direct current method exploration |
| CN104198859A (en) * | 2014-09-05 | 2014-12-10 | 国家电网公司 | Temperature rise monitoring device for electronic product |
| CN104503289A (en) * | 2014-09-10 | 2015-04-08 | 苏州市职业大学 | Sine-wave signal generation and analysis processor |
| CN104635280A (en) * | 2015-02-13 | 2015-05-20 | 浦创电子科技（苏州）有限公司 | Universal detection system and method |
| CN107479110A (en) * | 2017-09-29 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | A kind of earthquake wave detector test system and method |
| CN107784791A (en) * | 2016-08-25 | 2018-03-09 | 苏州热工研究院有限公司 | A kind of earthquake monitoring warning system and method for nuclear power plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033854A (en) * | 2012-12-12 | 2013-04-10 | 中国地震局地震研究所 | Analog seismic signal generator |
| CN103454698A (en) * | 2013-09-11 | 2013-12-18 | 东华理工大学 | Online fault detection system of three-dimensional electrical resistivity acquisition system in direct current method exploration |
| CN104198859A (en) * | 2014-09-05 | 2014-12-10 | 国家电网公司 | Temperature rise monitoring device for electronic product |
| CN104503289A (en) * | 2014-09-10 | 2015-04-08 | 苏州市职业大学 | Sine-wave signal generation and analysis processor |
| CN104635280A (en) * | 2015-02-13 | 2015-05-20 | 浦创电子科技（苏州）有限公司 | Universal detection system and method |
| CN107784791A (en) * | 2016-08-25 | 2018-03-09 | 苏州热工研究院有限公司 | A kind of earthquake monitoring warning system and method for nuclear power plant |
| CN107479110A (en) * | 2017-09-29 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | A kind of earthquake wave detector test system and method |
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Application publication date: 20100901 Assignee: Wuhan earthquake Scientific Instrument Research Institute Assignor: INSTITUTE OF EARTHQUAKE, CHINA EARTHQUAKE ADMINISTRATION Contract record no.: 2014420000171 Denomination of invention: Detection device of nuclear and earthquake instrument system Granted publication date: 20120926 License type: Exclusive License Record date: 20140827 |
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