CN201637497U - Embedded intelligent device for testing temperature rise of household appliances - Google Patents
Embedded intelligent device for testing temperature rise of household appliances Download PDFInfo
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- CN201637497U CN201637497U CN2009202155923U CN200920215592U CN201637497U CN 201637497 U CN201637497 U CN 201637497U CN 2009202155923 U CN2009202155923 U CN 2009202155923U CN 200920215592 U CN200920215592 U CN 200920215592U CN 201637497 U CN201637497 U CN 201637497U
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Abstract
The utility model provides an embedded intelligent device for testing the temperature rise of household appliances, which realizes efficient, automatic and intelligent test for the household appliances. To achieve the purpose, the embedded intelligent device comprises a thermocouple connected with an embedded data collecting terminal which is further connected with an intelligent household appliance temperature rise testing system via a communication cable. When adopted, the embedded intelligent device provides a new temperature rise testing way for the household appliances, introduces a new temperature rise testing standard, reduces the error probability of temperature rise tests, and improves the work efficiency, thereby being applicable not only to temperature rise tests for the household appliances under the national standard, such as the temperature rise tests for the household appliances and luminaries, but also to thermometry in the industrial production, such as thermometry and monitoring in warehouses, grain storages, cold storages, food plants, pharmaceutical plants, beverage plants and other places.
Description
Technical field
The utility model is a kind of temperature rise test macro in Electronic Testing Technology and the product electrical safety detection range, relates in particular to the embedded intelligence household electrical appliances temperature rise proving installation of the temperature rise experiment test that is used for the household appliances security test.
Background technology
The safety of household appliances, environmental protection, quality more and more are subjected to user's attention.The task that the household electrical appliances electrical safety detects is more and more heavier, and the standard of detection and requirement are more and more higher.Be defined in the household electrical appliance duration of test among the standard GB 4706.1-2005 " the safety first part of family expenses and similar applications electrical equipment: general requirement " and want the continuous monitoring temperature rise, temperature rise value must not surpass the value of regulation.Household appliances carry out temperature rise test, and promptly household appliances are tested the maximum temperature rise at each regulation position in normal operation.The temperature rise safety detection of household appliances is important process contents that the household appliances electrical safety detects.
Traditional household appliances temperature rise test is the requirement of electrical safety test slip-stick artist according to testing standard, pass through temperature measuring device, DR130 thermometer as the development of Japanese YOKOGAWA (Yokogawa) company, the temperature at each position of test products, read thermograph report by the Test Engineer then, contrast temperature rise standard is judged whether conformance with standard of household appliances.The shortcoming of this method is---is the passive temperature signal record that carries out, do not have the function of intelligent decision, can't carry out the automatic judgement of test result, generate the laboratory report that the test channel object is understood automatically.Research to temperature test instrument mainly is the temperature test point to be carried out functions such as data acquisition, signal condition, temperature value preservation, temperature inquiry both at home and abroad.People such as the Liu Wei of University of Science ﹠ Technology, Beijing are at " based on the electric thermo-couple temperature test and the analytic system of virtual instrument " (" instrument and meter for automation " 2007,3:65-66) Yan Jiu multichannel temperature testing tool mainly is that the thermopair data are read in computing machine and carried out corresponding analytical calculation, realize real-time signal acquisition, show, but do not embed the temperature rise testing standard, therefore still not enough hommization in use can't be satisfied people's requirement.
Summary of the invention
The utility model provides a kind of embedded intelligence household electrical appliances temperature rise proving installation, realizes the efficient automated intelligent temperature rise test of household appliances.
For reaching described purpose, the utility model embedded intelligence household electrical appliances temperature rise proving installation comprises that thermopair, thermopair connect the embedded data acquisition terminal, and the embedded data acquisition terminal connects intelligent appliance temperature rise test macro by communication cable.
Preferably, thermopair is 32 road K type thermopairs, realizes maximum 32 road temperature signal sensings.The utility model exploitation has realized the household electrical appliances temperature rise tester pseudo operation panel based on DELPHI.32 road temperature acquisition path settings, to measure the temperature signal channel definition clear and definite, and temperature limit Standard Selection, sweep time, sampling time interval etc. can be provided with, revise by the pseudo operation panel.
Preferably, intelligent appliance temperature rise test macro has comprised communications parameter setting, temperature channel control, temperature data processing, the compensation of intelligent sensing off-line, household electrical appliances temperature rise standard database, graphic presentation printing, test result report display print module.The utility model exploitation has realized the thermopair nonlinear compensation algorithm of off-line support vector machine.After utilization RBF support vector machine is carried out the training of off-line non-linear regression, to obtain thermopair nonlinear compensation model and be embedded into these household electrical appliances temperature rise proving installation, originally finish the thermopair nonlinear compensation, subdued the nonlinearity erron of thermocouple device, obviously improve the system accuracy of temperature rise proving installation, realize the high-acruracy survey of each position temperature of household appliances.Embedded the temperature rise testing standard, realized that the automated intelligent of test result is judged.This tester can carry out the temperature rise test according to existing temperature rise testing standards such as GB4706.1-2005, GB3883.1-2008, GB7000.1-2007, the temperature rise value contrast that the temperature data that collects and database are set, probe temperature is carried out real-time judge, improved the intelligent and reconfigurability of test macro.
Preferably, the utility model embedded intelligence household electrical appliances temperature rise proving installation has the cold junction compensation circuit based on high-precision integrated temperature sensor.Adopt high precision integrated temperature sensor AD590 to realize the cold junction compensation technology, this cold junction compensation circuit is mainly floated, the integrated amplification chip of offset voltage, is gone lotus root electric capacity etc. to form by high precision integrated temperature sensor AD590, precision resistor, K type thermopair, high precision, low temperature.Guaranteed the precision of sampling.
Preferably, the utility model embedded intelligence household electrical appliances temperature rise proving installation possesses serial ports and Ethernet telecommunication mode.Change the remote temperature test function that ethernet network interface card is realized instrument by serial ports, realize the long-range bidirectional data exchange of host computer and next bit computer, device possesses the ethernet communication function.
Owing to adopted the utility model embedded intelligence household electrical appliances temperature rise proving installation, new household appliances temperature rise means of testing is provided, imported new temperature rise testing standard, reduce the error probability of temperature rise test, improved work efficiency, can be used for satisfying the household appliances temperature rise test under the national standard, as the temperature rise test of household electrical appliances, light fixture, also can be used for the temperature survey in the commercial production, as the temperature survey and the monitoring of occasions such as freight house, grain depot, freezer, food factory, pharmaceutical factory, Soft Drinks Plant.The utility model plays certain facilitation to the innovation of China's household appliances temperature rise means of testing, and having widely, society generalization is worth.
Description of drawings
Fig. 1 is the theory diagram of the utility model embedded intelligence household electrical appliances temperature rise proving installation.
The acquisition terminal signal conditioning circuit of Fig. 2 embedded intelligence household electrical appliances of the present invention temperature rise proving installation.
Embodiment
Be introduced below in conjunction with the hardware and the method for accompanying drawing the utility model embedded intelligence household electrical appliances temperature rise proving installation.As shown in Figure 1, this embedded intelligence household electrical appliances temperature rise proving installation mainly is made up of thermopair 1, embedded data acquisition terminal 2, communication cable 3, intelligent appliance temperature rise test macro 4.Thermopair 1 comprises 32 thermocouple probes.Embedded data acquisition terminal 2 comprises cold junction compensation and signal conditioning circuit, channel control circuit, A/D conversion, single-chip computer control system, liquid crystal display, RAM, communication interface etc.Intelligent appliance temperature rise test macro 4 is responsible for finishing system's setting, data processing, curve display, curve and report printing, data management etc. on the host computer PC.Realize data interaction by communication interfaces such as RS232, TCP/IP between embedded data acquisition terminal 2 and the intelligent appliance temperature rise test macro 4.During test, at first 32 road K type thermopairs 1 probe of tester acquisition terminal is arranged in on-the-spot test product assigned position and fixes, RS232 or Ethernet interface with acquisition terminal connects correctly then, connects the single-phase 220V power lead of terminal of acquisition terminal.Open tested household appliances at last, on PC, start operation intelligent appliance temperature rise test macro 4, can carry out household electrical appliances temperature rise safety and test automatically.
Shown in the embedded data acquisition terminal 2 of this embedded intelligence household electrical appliances temperature rise proving installation, mainly form by power module, sensing, signal condition, A/D sampling, channel selecting, liquid crystal display, serial communication, single-chip microcomputer.Wherein power module adopted 5V, 12V ,-the power supply output of 12V power supply, power module adopts linear power supply module.Sensing has adopted K type thermopair 1 as the sensing measurement element.Signal conditioning circuit as shown in Figure 2, circuit mainly amplifies chip OP07 by integrated computing, the zero-regulator resistor of 20K Ω, go lotus root electric capacity and the correlation proportion resistance of 150PF are formed, wherein J1 connects K type thermopair 1, J2 connects the AD590 temperature sensor and carries out temperature compensation, R1, R3 is a 1K Ω precision resistance, R6 adopts 200K Ω precision resistance, C1 be 150PF remove lotus root electric capacity, remove some high frequency compositions, the RV3 precision resistor transfers to 40.4 Europe, like this during 1 ℃ of the every increase of cold junction temperature, the temperature sensor output current accurately increases by 1 μ A, this electric current RV3 precision resistor of flowing through produces voltage drop and increases by 40.4 μ V, and thermopair 1 has reduced 40.4 μ V because cold junction temperature increases the heat outputting electromotive force, and both cancel out each other, just compensated the decrease of thermoelectrical potential, finally realized the cold junction compensation of thermopair 1, the enlargement factor of amplifier reaches 201, and K type thermopair 1 temperature electromotive force signal carries out being convenient to A/D after voltage amplification and the cold junction compensation to be changed.The A/D converting system has adopted 12 successive approximation analog to digital 1674 modules, and sample frequency is 100kHz, adopts the unipolar voltage input, and reference voltage is 10V.Temperature channel selects circuit to realize the selection of 32 tunnel temperature survey passages, mainly select 1 analog switch 4067 and a slice 2 to select 1 analog switch 4053 to form by two 16, constitute 32 paths and select, finely satisfied the demand of multiplex temperature collection in the household appliances.Senior Single Chip Microcomputer (SCM) system is selected the AT89C55WD chip, mainly comprise crystal oscillating circuit, electrify restoration circuit and and channel selecting, A/D, interface control circuits such as communication and liquid crystal, at first, Single Chip Microcomputer (SCM) system is called the channel selecting subroutine module, send the channel selecting control signal, the conditioning amplifying signal of each road thermopair 1 of gating in turn, and output signal enters the A/D module, Single Chip Microcomputer (SCM) system is called A/D data acquisition subroutine module, start the AD conversion, and behind EOC, take out transformation result, call the data processing subroutine module, with AD transformation result (voltage signal after corresponding thermocouples 1 conditioning is amplified), pass through data processing, become the thermopair 1 thermoelectrical potential data behind the cold junction compensation, call the communication subroutine module at last, with the 1 thermoelectrical potential data upload of the thermopair behind each passage cold junction compensation to intelligent appliance temperature rise test macro 4.Native system can be realized serial ports RS232, ethernet communication, and the Single Chip Microcomputer (SCM) system signal of communication at first is converted to the RS232 level through MAX232, realizes the RS232 serial communication by serial communication cable 3 and PC; Adopt the NPort 5110 up-to-date serial servers of MOXA in addition, finish the process that the RS23 serial data transfers Ethernet data to, realize the remote transmission of 10M Ethernet expeditiously, realize the communication of TCP/IP network remote by the RJ45 mode and the PC of Ethernet.
Intelligent appliance temperature rise test macro 4 mainly comprises interfaces such as the setting of serial ports parameter, temperature channel control, temperature data processing, graphic presentation, has that temperature channel is chosen, functions such as temperature data acquisition, data analysis, safe temperature contrast, temperature variation real-time graph show, temperature data storage and printing.Intelligent appliance temperature rise test macro 4 adopts slave computer/host computer architecture, all programs all operate in upper computer end, the slave computer end almost need not be done any operation (remove thermopair 1 probe is installed in tested electronic product surface), as long as intelligent appliance temperature rise test macro 4 softwares are installed, can finish various operations to the temperature rise test experiments, the enforcement of design system provides convenience like this, has ease for maintenance, easily the advantage of extendability.When system upgrades if desired, for example carry out the change of temperature rise testing standard, increase, or carry out data research analysis etc., only need get final product in the upper computer end upgrading, irrelevant with slave computer.
The utility model possesses the host computer Survey Software and has perfect database management function in addition.Compare with existing temperature rise tester, this temperature rise tester has more powerful data management function, comprise: temperature rise data recording, preservation in real time, the temperature rise tables of data imports the total data storehouse in real time, the temperature rise data can be carried out the temperature rise tables of data and import total data storehouse, the inquiry of historical test data, data derivation, data file preservation etc. by the software interface of intelligent appliance temperature rise test macro 4.Test scan cycle, the sense cycle of the utility model temperature rise test can be provided with flexibly, can realize the flexible setting of temperature rise test scan cycle, sense cycle by the software interface of intelligent appliance temperature rise test macro 4.The utility model adopts and embeds household electrical appliances temperature rise test judgement standard, has improved existing temperature rise test automation level and intelligent, and test form is simple.Its cold junction compensation technology, strengthened based on thermopair 1 non-linear compensation method of support vector machine reliability, the accuracy of temperature test.Household electrical appliances temperature rise tester pseudo operation panel, it is clear and definite to measure the temperature signal channel definition, is convenient to the position definition of tested household electrical appliances; Possess serial ports, the long-range many communication modes of Ethernet, be convenient to the remote testing of industry spot, can generate the temperature rise test report that meets various safety standards automatically at long-range PC.This instrument possesses following advantage: system intelligence, software restructural, cost is lower, measuring accuracy is high, embed criterion, possess characteristics such as network remote communication.
Claims (5)
1. embedded intelligence household electrical appliances temperature rise proving installation, it is characterized in that: comprise that thermopair (1), thermopair (1) connect embedded data acquisition terminal (2), embedded data acquisition terminal (2) connects intelligent appliance temperature rise test macro (4) by communication cable (3).
2. embedded intelligence household electrical appliances temperature rise proving installation as claimed in claim 1 is characterized in that: thermopair (1) is 32 road K type thermopairs, realizes maximum 32 road temperature signal sensings.
3. embedded intelligence household electrical appliances temperature rise proving installation as claimed in claim 1 is characterized in that: intelligent appliance temperature rise test macro (4) has comprised communications parameter setting, temperature channel control, temperature data processing, the compensation of intelligent sensing off-line, household electrical appliances temperature rise standard database, graphic presentation printing, test result report display print module.
4. embedded intelligence household electrical appliances temperature rise proving installation as claimed in claim 1, it is characterized in that: embedded data acquisition terminal (2) also has the cold junction compensation circuit based on high-precision integrated temperature sensor.
5. embedded intelligence household electrical appliances temperature rise proving installation as claimed in claim 1, it is characterized in that: embedded data acquisition terminal (2) also possesses serial ports and Ethernet remote communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009202155923U CN201637497U (en) | 2009-12-31 | 2009-12-31 | Embedded intelligent device for testing temperature rise of household appliances |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202155923U CN201637497U (en) | 2009-12-31 | 2009-12-31 | Embedded intelligent device for testing temperature rise of household appliances |
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| CN201637497U true CN201637497U (en) | 2010-11-17 |
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| CN2009202155923U Expired - Fee Related CN201637497U (en) | 2009-12-31 | 2009-12-31 | Embedded intelligent device for testing temperature rise of household appliances |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175938A (en) * | 2011-01-20 | 2011-09-07 | 国电南瑞科技股份有限公司 | Electric vehicle conductive-charging interface temperature rise testing system |
| CN102945054A (en) * | 2012-10-12 | 2013-02-27 | 上海大学 | Photoelectric device encapsulation and laser bonding temperature collection and control system and method |
| CN102981529A (en) * | 2012-11-27 | 2013-03-20 | 中国人民解放军92941部队 | Blackbody temperature control device for testing infrared dynamic tracking characteristics |
| CN103019280A (en) * | 2012-11-23 | 2013-04-03 | 安徽鑫龙电器股份有限公司 | Temperature monitoring device for multi-contact temperature measurement |
| CN103293406A (en) * | 2013-04-09 | 2013-09-11 | 广东省东莞市质量监督检测中心 | Electric appliance product intelligent temperature rise testing system and control method thereof |
| CN103674309A (en) * | 2012-09-14 | 2014-03-26 | 苏州东辰林达检测技术有限公司 | Electric product temperature rise tester |
| CN104076218A (en) * | 2014-07-03 | 2014-10-01 | 国家电网公司 | Temperature rise test instrument and test method for large current charging connector |
| WO2015188784A1 (en) * | 2014-06-12 | 2015-12-17 | Mediatek Inc. | Thermal management method and electronic system with thermal management mechanism |
| CN108627263A (en) * | 2018-07-04 | 2018-10-09 | 中山市中健医疗设备有限公司 | A kind of temperature data acquisition circuit of heat perfusion apparats for treating tumor |
| CN111198043A (en) * | 2020-03-09 | 2020-05-26 | 国家电光源质量监督检验中心(北京) | Automatic acquisition system and method for thermal test data of lighting equipment |
-
2009
- 2009-12-31 CN CN2009202155923U patent/CN201637497U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175938A (en) * | 2011-01-20 | 2011-09-07 | 国电南瑞科技股份有限公司 | Electric vehicle conductive-charging interface temperature rise testing system |
| CN103674309A (en) * | 2012-09-14 | 2014-03-26 | 苏州东辰林达检测技术有限公司 | Electric product temperature rise tester |
| CN102945054A (en) * | 2012-10-12 | 2013-02-27 | 上海大学 | Photoelectric device encapsulation and laser bonding temperature collection and control system and method |
| CN103019280A (en) * | 2012-11-23 | 2013-04-03 | 安徽鑫龙电器股份有限公司 | Temperature monitoring device for multi-contact temperature measurement |
| CN102981529A (en) * | 2012-11-27 | 2013-03-20 | 中国人民解放军92941部队 | Blackbody temperature control device for testing infrared dynamic tracking characteristics |
| CN102981529B (en) * | 2012-11-27 | 2015-10-28 | 中国人民解放军92941部队 | For the blackbody temperature control device of infrared dynamic tracking characteristics test |
| CN103293406A (en) * | 2013-04-09 | 2013-09-11 | 广东省东莞市质量监督检测中心 | Electric appliance product intelligent temperature rise testing system and control method thereof |
| CN103293406B (en) * | 2013-04-09 | 2015-08-19 | 广东省东莞市质量监督检测中心 | A kind of electric appliance product intelligent temperature rise test macro and control method thereof |
| WO2015188784A1 (en) * | 2014-06-12 | 2015-12-17 | Mediatek Inc. | Thermal management method and electronic system with thermal management mechanism |
| CN104076218A (en) * | 2014-07-03 | 2014-10-01 | 国家电网公司 | Temperature rise test instrument and test method for large current charging connector |
| CN108627263A (en) * | 2018-07-04 | 2018-10-09 | 中山市中健医疗设备有限公司 | A kind of temperature data acquisition circuit of heat perfusion apparats for treating tumor |
| CN111198043A (en) * | 2020-03-09 | 2020-05-26 | 国家电光源质量监督检验中心(北京) | Automatic acquisition system and method for thermal test data of lighting equipment |
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| Date | Code | Title | Description |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20111231 |