CN102338628B - Signal test simulation device for testing sensor - Google Patents
Signal test simulation device for testing sensor Download PDFInfo
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- CN102338628B CN102338628B CN201110233462.4A CN201110233462A CN102338628B CN 102338628 B CN102338628 B CN 102338628B CN 201110233462 A CN201110233462 A CN 201110233462A CN 102338628 B CN102338628 B CN 102338628B
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000004088 simulation Methods 0.000 title abstract description 7
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005086 pumping Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000005284 excitation Effects 0.000 abstract 1
- 101100067427 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FUS3 gene Proteins 0.000 description 7
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 6
- 101100015484 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GPA1 gene Proteins 0.000 description 6
- 101150102866 adc1 gene Proteins 0.000 description 6
- 101150042711 adc2 gene Proteins 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000013142 basic testing Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
A signal test simulation device for testing a sensor is connected in series between the sensor and a flight control computer and comprises an upper computer, a real-time processor, a first analog-to-digital converter, a first digital-to-analog converter, a second analog-to-digital converter and a second digital-to-analog converter; an excitation signal sent by the flight control computer is sent to the sensor through the first analog-to-digital converter, the real-time processor and the first digital-to-analog converter in sequence, a feedback signal of the sensor is sent to the flight control computer through the second analog-to-digital converter, the real-time processor and the second digital-to-analog converter in sequence, and the feedback signal of the sensor is sent to the upper computer through the second analog-to-digital converter and the real-time processor in sequence. By applying the device, the complexity of the testing device can be reduced, the introduction of error signals can be reduced as much as possible, the testing precision is improved, and the original voltage signals of the sensor acquired by the device can be conveniently replayed through a signal simulation function, so that the originality and consistency of test data can be ensured to the greatest extent.
Description
Technical field
The present invention relates to signal testing simulator, relate in particular to the test and the emulation that are applied to the sensor signal in flight control system.
Background technology
Sensor is high with its precision for LVDT (Linear Variable Differential Transformer) or RVDT (Rotary Variable Differential Transformer), stable performance, be easy to the advantage such as integrated and be widely used in fly-by-wire flight control system, for displacement of the lines amount or the angular displacement of driving cabin control device are sent to flight control computer, by flight control computer, carried out the actuation mechanism of control rate calculating and then control terminal aircraft is carried out to working control.Sensor is as the input quantity of whole flight control system, most important when carrying out flight control system functional verification test and data analysis, therefore, for the test of sensor self, just becomes a problem.At present, method of testing for such sensor itself is through a special-purpose signal condition board by sensor signal, this board can exchange differential wave by the two-way of sensor and nurse one's health into the DC voltage linear with sensor displacement, and then gathered by AD board, obtain thus the positional information of sensor.Yet, on the one hand, the method can cause test macro to mix, on the other hand, signal condition board also can be introduced error, in addition, the displacement signal of the sensor that this method collects is not the most original sensor output voltage, can not directly carry out data readback (reappearing historical trystate).
Summary of the invention
For fear of system, mix, reduce error and overcome many weak points such as data readback inconvenience, the present invention proposes a kind of signal testing simulator for sensor, be series between sensor and flight control computer, it comprises host computer, real-time processor, the first analog to digital converter, the first digital to analog converter, the second analog to digital converter and the second digital to analog converter, and described real-time processor is electrically connected to respectively with described host computer, described the first analog to digital converter, described the first digital to analog converter, described the second analog to digital converter and described the second digital to analog converter; Wherein, the pumping signal that described flight control computer sends is delivered to described sensor by described the first analog to digital converter, described real-time processor and described the first digital to analog converter successively, and the pumping signal that described flight control computer sends is delivered to described host computer through the first analog to digital converter and described real-time processor successively; Correspondingly, the feedback signal of described sensor is delivered to described flight control computer through described the second analog to digital converter, described real-time processor and described the second digital to analog converter successively, and the feedback signal of described sensor is delivered to described host computer through described the second analog to digital converter and described real-time processor successively.
Particularly, described sensor is differential transformer sensor.
Particularly, described differential transformer sensor is linear movement pick-up.
More specifically, described linear movement pick-up is LVDT sensor.
Particularly, described differential transformer sensor is angular displacement sensor.
More specifically, described angular displacement sensor is RVDT sensor.
The signal testing simulator that the present invention proposes not only can reduce the complicacy of proving installation, thereby the introducing that reduces as far as possible error signal improves measuring accuracy, and, the primary voltage signal of the sensor that this device collects, can carry out easily data readback, the to the full extent primitiveness of warranty test data and consistance by signal simulation function.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the signal testing simulator for sensor of the present invention.
Embodiment
As shown in Figure 1, signal testing simulator 10 for testing sensor 1, be series between differential transformer sensor 1 and flight control computer 2, it comprises host computer 3, real-time processor 4, the first analog to digital converter ADC1, the first digital to analog converter DAC1, the second analog to digital converter ADC2 and the second digital to analog converter DAC2, and real-time processor 4 is electrically connected to respectively with host computer 3, the first analog to digital converter ADC1, the first digital to analog converter DAC1, the second analog to digital converter ADC2 and the second digital to analog converter DAC2; Wherein, the pumping signal that flight control computer 2 sends is delivered to sensor 1 by the first analog to digital converter ADC1, real-time processor 4 and the first digital to analog converter DAC1 successively, and the pumping signal that flight control computer 2 sends is delivered to host computer 3 through the first analog to digital converter ADC1 and real-time processor 4 successively; Correspondingly, the feedback signal of sensor 1 is delivered to flight control computer 2 through the second analog to digital converter ADC2, real-time processor 4 and the second digital to analog converter DAC2 successively, and the feedback signal of sensor 1 is delivered to host computer 3 through the second analog to digital converter ADC2 and real-time processor 4 successively.Wherein, at this, sensor is LVDT sensor and/or RVDT sensor.Real-time processor can be used such as NIPXI-7833R type processor.Particularly, described pumping signal is analog voltage pumping signal.
First, flight control computer 2 sends analog voltage pumping signal in signal-testing apparatus 10, and the first analog to digital converter ADC1 of signal-testing apparatus 10 utilizes two-way acquisition channel to gather above-mentioned pumping signal and then this pumping signal is converted to digital signal and sends to real-time processor 4.Secondly, real-time processor 4 sends to the first digital to analog converter DAC1 by this digital signal after processing, and the first digital to analog converter DAC1 is converted to digital signal analog voltage signal and by two-way output channel, exports to the sensor 1 being electrically connected to signal-testing apparatus 10.Then, after sensor 1 receives this pumping signal, export the differential voltage feedback signal of the simulation corresponding with sensing station, wherein, feedback frequency signal is consistent with exciting signal frequency.And then, the second analog to digital converter ADC2 of signal-testing apparatus 10 utilizes two paths to gather above-mentioned feedback signal and converts thereof into digital signal and send to real-time processor 4, real-time processor 4 will send to the second digital to analog converter DAC2 after this digital signal processing, the second digital to analog converter DAC2 is converted into analog voltage signal again and exports to flight control computer 2 by two paths.
Meanwhile, real-time processor 4 can send to host computer 3 by the feedback signal voltage value of the sensor collecting 1.Wherein, host computer 3 at least has storage unit, computing unit and display unit, this storage unit is preferably ROM storer, it is for storing this magnitude of voltage, computing unit is preferably calculation procedure, its sensitivity coefficient according to this magnitude of voltage and sensor 1 calculates the displacement of sensor 1, and display unit is preferably display, and it is for being shown to above-mentioned result of calculation in real time user and being stored in storage unit.
According to the present invention, the first analog to digital converter ADC1 of proving installation 10, real-time processor 4 and the first digital to analog converter DAC1 have formed the first test emulation unit, and the second analog to digital converter 2, real-time processor 4 and the second digital to analog converter DAC2 have formed the second test emulation unit.Therefore, apply proving installation 10 of the present invention, except needs are considered basic test voltage scope, without the characteristics of signals of understanding sensor completely, therefore can be applied to the inadequate various test occasions of the information of sensor signal.
Further, according to the present invention, proving installation 10 can be exported to flight control computer 2 by the second digital to analog converter DAC2 by the historical test data of the primary voltage signal of the sensor of storage 1, realizes data readback function.Also can Reality simulation driving cabin manipulation device do some specific operation action, that is, produce the sensor signal of analog sensor 1 special exercise form (as sine, step etc.), send to flight control computer 2, realize signal simulation function.
Although foregoing description is to the present invention's detailed explanation of contrasting, these are just illustrative to the present invention, rather than limitation of the present invention, and any innovation and creation that exceed in connotation of the present invention, all fall within the scope of protection of the present invention.
Claims (5)
1. the signal testing simulator for testing sensor, be series between sensor and flight control computer, it comprises host computer, real-time processor, the first analog to digital converter, the first digital to analog converter, the second analog to digital converter and the second digital to analog converter, and described real-time processor is electrically connected to respectively with described host computer, described the first analog to digital converter, described the first digital to analog converter, described the second analog to digital converter and described the second digital to analog converter; Wherein, the pumping signal that described flight control computer sends is delivered to described sensor by described the first analog to digital converter, described real-time processor and described the first digital to analog converter successively, correspondingly, the feedback signal of described sensor is delivered to described flight control computer through described the second analog to digital converter, described real-time processor and described the second digital to analog converter successively, and the feedback signal of described sensor is delivered to described host computer through described the second analog to digital converter and described real-time processor successively.
2. the signal testing simulator for testing sensor according to claim 1, wherein, described sensor is linear movement pick-up.
3. the signal testing simulator for testing sensor according to claim 2, wherein, described linear movement pick-up is LVDT sensor.
4. the signal testing simulator for testing sensor according to claim 1, wherein, described sensor is angular displacement sensor.
5. the signal testing simulator for testing sensor according to claim 4, wherein, described angular displacement sensor is RVDT sensor.
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| CN201110233462.4A CN102338628B (en) | 2011-08-15 | 2011-08-15 | Signal test simulation device for testing sensor |
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| CN201110233462.4A CN102338628B (en) | 2011-08-15 | 2011-08-15 | Signal test simulation device for testing sensor |
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| CN103413422A (en) * | 2013-07-24 | 2013-11-27 | 中国科学院上海微系统与信息技术研究所 | Information acquisition, integration and development platform of sensor |
| CN105488255B (en) * | 2015-11-24 | 2019-02-05 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of fax iron bird test sensor data processing method and system |
| CN105424075A (en) * | 2016-01-18 | 2016-03-23 | 云南电网有限责任公司电力科学研究院 | General testing system and method of intelligent TEDS (Transducer Electronic Data Sheet) sensor |
| CN106773786B (en) * | 2016-12-27 | 2020-11-03 | 北京润科通用技术有限公司 | RVDT signal simulation circuit, method and device |
| CN108241358A (en) * | 2017-12-08 | 2018-07-03 | 西安飞机工业（集团）有限责任公司 | A kind of method for the interaction of airplane complete machine avionics data |
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| CN1312484C (en) * | 2003-03-24 | 2007-04-25 | 张文 | Single node sampled voltage-current characteristic digital detecting circuit |
| CN100456187C (en) * | 2006-08-03 | 2009-01-28 | 上海交通大学 | Heat treatment wireless virtual meter central controlling system |
| CN101344788B (en) * | 2008-09-02 | 2010-06-16 | 南京航空航天大学 | Simulation test equipment and method for moonlet attitude control reliability validation |
| CN101424673B (en) * | 2008-12-08 | 2010-08-25 | 宁波出入境检验检疫局检验检疫技术中心 | Dangerous characteristic detector for flammable gas |
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