CN101344575A - Relay reliability service life experiment system based on dynamic characteristic - Google Patents
Relay reliability service life experiment system based on dynamic characteristic Download PDFInfo
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- CN101344575A CN101344575A CNA2008101369605A CN200810136960A CN101344575A CN 101344575 A CN101344575 A CN 101344575A CN A2008101369605 A CNA2008101369605 A CN A2008101369605A CN 200810136960 A CN200810136960 A CN 200810136960A CN 101344575 A CN101344575 A CN 101344575A
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Abstract
The invention provides a relay reliability service-life test system based on dynamic characteristics on the basis of a certain acceleration service-life theory research and aiming at solving the defects of the existing service-life test apparatuses that the test efficiency is low; the test period is long and the cost is high and damages cannot be avoided, etc. The system can take the action frequency and load of the relay as the environment variables of the relay acceleration service-life so as to realize a non-damage and effective test technique. The system at least can simultaneously test 10 groups of conversion contacts and 10 groups of coils totally and is provided with the flexible expansibility; a sampling parameter resolution is 1Mu s; an action frequency can be set to be equal to or less than 120 times/min. The system comprises a main control unit, a relay driving unit, a data collecting and processing unit and an upper computer processing unit.
Description
(1) technical field
The present invention relates to electric detective technology, just be based on the relay reliability service life experiment system of dynamic perfromance specifically.
(2) background technology
Relay is applied in the modern electronic equipment, is indispensable important component part in industrial automation, the modernization of national defense system.Its operate as normal life-span has often determined the mission life of total system.Relay is carried out reliable life experiment, can obtain the parameter attribute of its reliability, product is screened, identifies and to the improvement of product quality with this.
At present, for the life test of relay the certain standard regulation is arranged, as GJB65B-99, GJB1042A-2002 etc.But only limit to relay is carried out common life experiment test, the test duration is longer, belongs to destructive test, inefficiency.Simultaneously, the characteristic quantity of test is less, can not show the relay life characteristics fully.And the common relatively life experiment of accelerated aging experiment has tangible advantage, and the test duration is short, and efficient is higher.But still do not have clear and definite standard code for the accelerated aging experiment of relay at present, experiment condition is still in conceptual phase.
Therefore, the accelerated aging measuring technology, particularly accelerated aging experimental conditions and detected object of research relay and to the life-span prediction method of relay has important theory and practical significance to whole relay life tests direction.To the development of whole industrial automation and Defensive Avionics System, have important use and be worth.
(3) summary of the invention
The objective of the invention is at conventional efficient is low in the current life experiment device, the cycle is long, cost is high, have shortcomings such as destructiveness, on certain accelerated aging theoretical research basis, a kind of relay reliability service life experiment system based on dynamic perfromance is proposed.System can be with the operating frequency of relay and the load environmental variance as the relay accelerated aging, realizes a kind of non-destructive, experimental test technology efficiently.
The present invention is based on the relay reliability service life experiment system of dynamic perfromance, the transfer contact that can test simultaneously adds up to 10 groups at least, and coil adds up to 10 groups, and has flexible expansion; The parameter resolution of sampling is: 1 μ s; Operating frequency can be set at and be no more than 120 times/min.
The relay reliability service life experiment system that the present invention is based on dynamic perfromance comprises: main control unit, relay drive unit, data acquisition and processing unit, host computer processing unit.Main control unit is connected by USB interface with computing machine, and main control unit is controlled the coil voltage size of relay to be tested by the pilot relay driver element, and main control unit is connected by the CAN bus with each data acquisition process unit.Data acquisition and processing unit can increase and decrease the quantity on the CAN bus flexibly according to the number of contacts of the relay of reality test.
Described main control unit receives and resolves the order that the host computer unit transmits, and carries out the order transmission to the CAN bus; Send the data of transmitting on the CAN bus to the host computer unit; Control DAC exports required relay coil voltage size, and signal is passed to relay drive unit.
Described relay drive unit receives the signal that main control unit transmits, and signal power is amplified, and is able to drive the purpose of relay coil.
Described data acquisition and processing unit, receive the control signal on the CAN bus, its inner control treatment module is according to control command, the acquisition target that distributes this unit, then by the whole acquisition logic relation of its inner sequential logic control module control, its inner AD image data is delivered in the inner control treatment module, calculates the parameter that needs, and is sent on the CAN bus.
Described host computer unit is to the main control unit transmitting control commands; Receive the test data of experiment that main control unit transmits, and the situation of the current durability test of analytical calculation and predict later ruuning situation.
The present invention not only can realize a large amount of useful data information in the continuous unremitting control relay durability test, and structure is flexible, strong modularity, the relay durability test of suitable variety classes and quantity.Simultaneously, the present invention can carry out with the accelerated life test as speedup factor of load size and operating frequency relay.Data acquisition precision height, response speed is fast, and data analysis is complete.
(4) description of drawings
Fig. 1 is an overall construction design block diagram of the present invention
Fig. 2 is the structural design block diagram of data acquisition of the present invention and processing unit
(5) embodiment
The invention will be further described below in conjunction with accompanying drawing.
At first the user selects the model of current test relay, driving voltage size, specimen quantity and the speedup factor and the acceleration model that carry out accelerated life test in the host computer unit controls.The host computer unit is provided with order with these parameters and transfers to main control unit by USB.
After the order of main control unit analytical analysis, control command is passed to each data acquisition and processing unit by the CAN bus, it is combined into adapts to requirements dissimilar and different tested objects.As: need to detect the relay of 1 group of coil and 10 groups of transfer contacts, system can detect 1 simultaneously, and this moment, main control unit made all data acquisitions and processing unit all adopt unified coil current input signal, guarantees that data acquisition is synchronous; If need to detect the relay of 1 group of coil and 2 groups of transfer contacts, system can detect 5 simultaneously, and per two data collections this moment and processing unit adopt unified coil current input signal.Other various array modes, by that analogy.
Simultaneously, the DA of main control unit inside transmits voltage signal according to the model and the driving voltage size of the relay of selecting to relay drive unit, makes its voltage signal satisfy the requirement of actual driving voltage size.At this moment, relay drive unit by the power amplifier module of inside, carries out power amplification with drive signal according to voltage signal, so that it satisfies the needs of relay driving power.
At this moment, finish the initial work of durability test, can begin to carry out the durability test process.
The user transmits by the parsing and the order of main control unit at host computer unit controls durability test test starting, and each data acquisition and processing unit begin to carry out data acquisition.
After the control module ARM of data acquisition and processing unit inside received the control command that begins to gather on the CAN bus, its inner logical sequence control module FPGA started working, and the AD chip of start unit inside begins the data acquisition translation function simultaneously.
The relay parameter signal that needs to gather comprises: coil current, contact voltage, contact voltage drop and contact current.Parameter signal makes it satisfy the requirement of follow-up AD acquisition range by the modulate circuit of data acquisition and processing unit inside.AD with the data storage of gathering to the storage RAM of inside, unit, after this control module ARM reads the image data among the RAM, the Treatment Analysis of line data of going forward side by side is calculated, obtain the various durability test parameters of the relay of needs, and data message is passed to main control unit by the CAN bus, and transfer to the host computer unit by the USB interface of main control unit, be presented in the software interface of host computer unit.At this moment, device has been finished the course of action in the primary relay durability test.After this, in this way, relay can carry out continual durability test action.
When the needs durability test stops, the user directly sends in the host computer unit and stops control command, perhaps action frequency or the actuation time of setting when beginning to carry out durability test, after reaching certain hour or action frequency, the host computer unit sends automatically and stops control command.This order is sent in the main control unit by USB interface, make its resolve command after, be sent in each data acquisition and the processing unit, its internal operation program is quit work, wait for that next bar control command arrives.At this moment, durability test stops.
After off-test, the user can observe each parametric line of operation, the action frequency equal life test figure information of durability test in the host computer unit.Can also carry out certain theoretical prediction of test figure as required to test figure, draw the life curve of relay; Simultaneously, can also will speed up the test figure result by certain Theoretical Calculation, extend to common durability test result, obtain the life curve of relay according to the different speedup factor modes and different accelerated test models of user's selection.
Claims (5)
1. relay reliability service life experiment system based on dynamic perfromance can be with the operating frequency of relay and the load environmental variance as the relay accelerated aging, realizes a kind of non-destructive, experimental test technology efficiently; The transfer contact that system can test at least simultaneously adds up to 10 groups, and coil adds up to 10 groups, and has flexible expansion; The parameter resolution of sampling is: 1 μ s; Operating frequency can be set at and be no more than 120 times/min; System forms and comprises: main control unit, relay drive unit, data acquisition and processing unit, host computer processing unit; Main control unit is connected by USB interface with computing machine, and main control unit is controlled the coil voltage size of relay to be tested by the pilot relay driver element, and main control unit is connected by the CAN bus with each data acquisition process unit; Data acquisition and processing unit can increase and decrease the quantity on the CAN bus flexibly according to the number of contacts of the relay of reality test.
2. the relay reliability service life experiment system based on dynamic perfromance according to claim 1, its main control unit receive resolves the order that the host computer unit sends, and carries out the order transmission to the CAN bus; Send the data of transmitting on the CAN bus to the host computer unit; Control DAC exports required relay coil voltage size, and signal is passed to relay drive unit.
3. the relay reliability service life experiment system based on dynamic perfromance according to claim 1, its relay drive unit receives the signal that main control unit transmits, and signal power is amplified, and is able to drive the purpose of relay coil.
4. the relay reliability service life experiment system based on dynamic perfromance according to claim 1, its data acquisition and processing unit, receive the control signal on the CAN bus, its inner control treatment module is according to control command, the acquisition target that distributes this unit, then by the whole data capture logic relation of its inner sequential logic control module control, the AD image data that it is inner also is sent in the inner control treatment module, calculate the parameter that needs, and be sent on the CAN bus.
5. the relay reliability service life experiment system based on dynamic perfromance according to claim 1, its host computer unit is to the main control unit transmitting control commands; Receive the life experiment test data that main control unit transmits, and the situation of the current durability test of analytical calculation and predict later ruuning situation.
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| CNA2008101369605A CN101344575A (en) | 2008-08-20 | 2008-08-20 | Relay reliability service life experiment system based on dynamic characteristic |
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Cited By (16)
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| CN101882781A (en) * | 2010-04-29 | 2010-11-10 | 浙江省电力公司 | Method for calculating comprehensive reliability of relay protecting system |
| CN101882782A (en) * | 2010-04-29 | 2010-11-10 | 浙江省电力公司 | Method for calculating reliability of relay protecting system |
| CN101629975B (en) * | 2009-04-27 | 2011-05-11 | 成都天奥测控技术有限公司 | Relay contact-voltage measuring and conditioning circuit and measuring method |
| CN101625395B (en) * | 2009-08-20 | 2011-06-15 | 哈尔滨工业大学 | Method for measuring relay contact settling time and device thereof |
| CN102707171A (en) * | 2012-05-31 | 2012-10-03 | 苏州热工研究院有限公司 | System for testing service life of electromagnetic relay coil and service life evaluation method |
| CN102818992A (en) * | 2012-08-07 | 2012-12-12 | 宁波吉江汽车制造有限责任公司 | Relay detection device |
| CN103034777A (en) * | 2011-09-29 | 2013-04-10 | 施耐德电器工业公司 | Method and device for counting energisation events |
| CN103176122A (en) * | 2011-12-21 | 2013-06-26 | 北京普源精电科技有限公司 | Multi-channel data acquisition device |
| CN103412254A (en) * | 2013-07-10 | 2013-11-27 | 北京中瑞蓝科电动汽车技术有限公司 | Method for acquiring DC contactor equivalent service life of electric vehicle and device thereof |
| CN104345267A (en) * | 2013-07-24 | 2015-02-11 | 西安宝力电子科技有限公司 | Aging and early failure detection method and detection apparatus of solid relay |
| CN104462799A (en) * | 2013-11-27 | 2015-03-25 | 河北工业大学 | Relay individual working life predicting and screening method based on early life performance |
| CN105548877A (en) * | 2016-02-18 | 2016-05-04 | 上海沪工汽车电器有限公司 | Automobile relay service life testing method |
| CN109031104A (en) * | 2018-06-12 | 2018-12-18 | 南京国电南自电网自动化有限公司 | One kind being used for protective relaying device relay contact device for detecting performance |
| CN109490650A (en) * | 2017-09-11 | 2019-03-19 | 中车株洲电力机车研究所有限公司 | A kind of rail traffic current transformer life predication apparatus and method |
| CN110795863A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨工业大学 | Relay service life prediction method based on multi-dimensional design parameters |
| CN112363054A (en) * | 2020-12-15 | 2021-02-12 | 深圳市达鑫自动化有限公司 | Automatic change comprehensive test machine |
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2008
- 2008-08-20 CN CNA2008101369605A patent/CN101344575A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101629975B (en) * | 2009-04-27 | 2011-05-11 | 成都天奥测控技术有限公司 | Relay contact-voltage measuring and conditioning circuit and measuring method |
| CN101625395B (en) * | 2009-08-20 | 2011-06-15 | 哈尔滨工业大学 | Method for measuring relay contact settling time and device thereof |
| CN101882782B (en) * | 2010-04-29 | 2013-01-23 | 浙江省电力公司 | Method for calculating reliability of relay protecting system |
| CN101882782A (en) * | 2010-04-29 | 2010-11-10 | 浙江省电力公司 | Method for calculating reliability of relay protecting system |
| CN101882781B (en) * | 2010-04-29 | 2013-04-24 | 浙江省电力公司 | Method for calculating comprehensive reliability of relay protecting system |
| CN101882781A (en) * | 2010-04-29 | 2010-11-10 | 浙江省电力公司 | Method for calculating comprehensive reliability of relay protecting system |
| CN103034777A (en) * | 2011-09-29 | 2013-04-10 | 施耐德电器工业公司 | Method and device for counting energisation events |
| US9606149B2 (en) | 2011-09-29 | 2017-03-28 | Schneider Electric Industries Sas | Method and device for counting energisation events |
| CN103176122A (en) * | 2011-12-21 | 2013-06-26 | 北京普源精电科技有限公司 | Multi-channel data acquisition device |
| CN102707171A (en) * | 2012-05-31 | 2012-10-03 | 苏州热工研究院有限公司 | System for testing service life of electromagnetic relay coil and service life evaluation method |
| CN102707171B (en) * | 2012-05-31 | 2014-12-03 | 苏州热工研究院有限公司 | Method for testing service life of electromagnetic relay coil |
| CN102818992A (en) * | 2012-08-07 | 2012-12-12 | 宁波吉江汽车制造有限责任公司 | Relay detection device |
| CN102818992B (en) * | 2012-08-07 | 2015-06-24 | 浙江南车电车有限公司 | Relay detection device |
| CN103412254A (en) * | 2013-07-10 | 2013-11-27 | 北京中瑞蓝科电动汽车技术有限公司 | Method for acquiring DC contactor equivalent service life of electric vehicle and device thereof |
| CN104345267A (en) * | 2013-07-24 | 2015-02-11 | 西安宝力电子科技有限公司 | Aging and early failure detection method and detection apparatus of solid relay |
| CN104345267B (en) * | 2013-07-24 | 2017-05-10 | 西安宝力电子科技有限公司 | Aging and early failure detection method and detection apparatus of solid relay |
| CN104462799A (en) * | 2013-11-27 | 2015-03-25 | 河北工业大学 | Relay individual working life predicting and screening method based on early life performance |
| CN105548877A (en) * | 2016-02-18 | 2016-05-04 | 上海沪工汽车电器有限公司 | Automobile relay service life testing method |
| CN105548877B (en) * | 2016-02-18 | 2018-07-27 | 上海沪工汽车电器有限公司 | A kind of AUTOMOTIVE RELAY life test method |
| CN109490650A (en) * | 2017-09-11 | 2019-03-19 | 中车株洲电力机车研究所有限公司 | A kind of rail traffic current transformer life predication apparatus and method |
| CN109490650B (en) * | 2017-09-11 | 2021-01-29 | 中车株洲电力机车研究所有限公司 | Device and method for predicting service life of rail transit converter |
| CN109031104A (en) * | 2018-06-12 | 2018-12-18 | 南京国电南自电网自动化有限公司 | One kind being used for protective relaying device relay contact device for detecting performance |
| CN109031104B (en) * | 2018-06-12 | 2021-04-16 | 南京国电南自电网自动化有限公司 | Relay contact performance detection device for relay protection device |
| CN110795863A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨工业大学 | Relay service life prediction method based on multi-dimensional design parameters |
| CN112363054A (en) * | 2020-12-15 | 2021-02-12 | 深圳市达鑫自动化有限公司 | Automatic change comprehensive test machine |
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Open date: 20090114 |