CN201637804U - Electric toy safety performance detecting instrument - Google Patents
Electric toy safety performance detecting instrument Download PDFInfo
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- CN201637804U CN201637804U CN2010291800761U CN201029180076U CN201637804U CN 201637804 U CN201637804 U CN 201637804U CN 2010291800761 U CN2010291800761 U CN 2010291800761U CN 201029180076 U CN201029180076 U CN 201029180076U CN 201637804 U CN201637804 U CN 201637804U
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Abstract
The utility model discloses an electric toy safety performance detecting instrument which comprises a detecting probe, a J-type thermocouple, a signal amplifying module, a signal filter module, an A/D (Analog to Digital) converting module and a computer, wherein the J-type thermocouple and the detecting probe are connected in parallel and are sequentially connected with the signal amplifying module, the signal filter module, the A/D converting module and the computer. The detecting instrument can realize various functions of automatic measurement parameter selection, automatic data measurement and storage and patterned display and detecting result analysis, processing and judgment according to the requirements of different detecting standard indexes, has the outstanding characteristics of flexible customization of a detecting method, easy expansion of a detecting function, automatic completion of a detecting process, and the like and can improve the detecting efficiency and reduce the detecting difficulty of a toy.
Description
Technical field
The utility model relates to detecting instrument, relates in particular to a kind of electronic game tool security performance detecting instrument.
Background technology
China is the big country of toy manufacturing in the world, production, outlet, and along with science and technology constantly develops, the export ratio of electronic game tool increases year by year, so the product quality of electronic game tool and security performance become the research point of penetration of attracting attention.Because electronic game tool quality and security performance directly influence children's physical health, the respective organization of Europe, the U.S. and China has all been issued electronic game tool safety standard separately, and standard content is also constantly increasing gradually.
The quality of toy product quality directly influences the export market share of China's toy in the international electronic game tool market competition that is growing more intense.Domestic present electronic game tool detecting instrument is short of flexibility detectability preferably, can't carry out formulationization detection scheme and parameter selection according to the heterogeneity of electronic game tool; Domestic electronic game tool detecting instrument does not possess powerful extendability and compatibility yet, can't carry out flexible configuration to key parameters such as sampling parameter, measuring object, sense channel numbers; Domestic electronic game tool detecting instrument more can't be selected examination criteria automatically according to different place, the city target of electronic game tool.In sum, electronic game tool industry needs advanced detecting instrument guaranteeing strict quality standard level, so the electronic game tool security performance detecting instrument of many standards of this paper introduction, the automatic measuring ability of multiparameter has vast market prospect.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of electronic game tool security performance detecting instrument is provided.
Electronic game tool security performance detecting instrument comprises detector probe, J type thermopair, signal amplification module, signal filtering module, A/D modular converter and computing machine; J type thermopair links to each other with signal amplification module, signal filtering module, A/D modular converter, computing machine successively with detector probe and after connecing.
The circuit of described signal amplification module is: amplifier U1 pin 1 links to each other with stiff end with the convertible tip of adjustable resistance R2, another stiff end of adjustable resistance R2 links to each other with amplifier U1 pin 8,4 pin of amplifier U1 and resistance R 4 one ends, capacitor C 3 negative poles link to each other, the power supply of resistance R 4 other ends and-12V, capacitor C 3 minus earths, amplifier U1 pin 4 ground connection, 6 pin of amplifier U1 link to each other with resistance R 3 one ends, resistance R 3 other ends are voltage output end VO, capacitor C 2 positive poles link to each other with voltage output end VO, capacitor C 2 minus earths, 7 pin of amplifier and resistance R 1 one ends, 1 anodal linking to each other of capacitor C, resistance R 1 other end links to each other capacitor C 1 minus earth with the power supply of+12V.
The circuit of described signal filtering module is: amplifier U2 pin 1 links to each other with adjustable resistance R8 two stiff ends respectively with pin 8, variable resistor R8 convertible tip and amplifier U2 pin 7 ,+12 power supply links to each other with the positive pole of capacitor C 7, capacitor C 7 minus earths, amplifier U2 pin 2 links to each other with amplifier U2 pin 6 with capacitor C 4 negative poles, capacitor C 4 positive poles link to each other with resistance R 6 one ends with resistance R 5 one ends, resistance R 5 other ends link to each other with input signal VO, and resistance R 6 other ends link to each other with amplifier U2 pin 3; Capacitor C 6 positive poles link to each other with amplifier U2 pin 3, capacitor C 6 minus earths; Amplifier U2 pin 4 links to each other capacitor C 5 plus earths with the power supply of+12V with capacitor C 5 negative poles; Amplifier U2 pin 6 links to each other with resistance R 7 one ends, and resistance R 7 other ends are output signal VO '.
The circuit of described A/D modular converter is: A/D conversion chip U3 pin 1 links to each other with capacitor C 8 one ends, capacitor C 8 other end ground connection; A/D conversion chip U3 pin 6 links to each other with the power supply of+5V; A/D conversion chip U3 pin 17,18,19,20,21,22,23,28 is ground connection all; A/D conversion chip U3 pin 25 is that constant module U4 pin 2 links to each other with capacitor C 12 1 ends, resistance R 9 one ends, linearity, capacitor C 12 other ends link to each other with the power supply of+5V, resistance R 9 other end ground connection, linearity are constant module U4 pins 1 with linearity is that constant module U4 pin 3 links to each other and ground connection all; A/D conversion chip U3 pin 26 links to each other capacitor C 11 minus earths with capacitor C 11 positive poles; A/D conversion chip U3 pin 27 links to each other with capacitor C 9 one ends, capacitor C 10 1 ends and all links to each other with the power supply of+5V, and capacitor C 9 other ends, capacitor C 10 other ends are ground connection all.
The utility model is a platform with the Virtual instrument LabVIEW, develops embedded many standard detection process module, and the user can require according to the various criterion of produce market the electronic game tool is carried out autotest; Have powerful extendability and compatibility, but the equal flexible configuration of key parameters such as the sampling parameter of sampling channel, measuring object, port number realizes that measuring flexibility at a high speed measures, and accurately reflects the variations in detail of measured parameter; Can carry out relevant processing and analysis according to the type of gathering model and the requirement of examination criteria, can realize functions such as data acquisition, shared and graphical demonstration simultaneously easily.Thereby for the electronic game tool detects the detecting instrument that industry provides safety and reliability.
Description of drawings
Fig. 1 is the electronic game tool security performance detector circuit block diagram with many standards, the automatic measuring ability of multiparameter;
Fig. 2 is the utility model patent signal processing module amplification circuit diagram;
Fig. 3 is the utility model patent signal processing module filtering circuit figure;
Fig. 4 is the SCM Based A/D change-over circuit of the utility model patent figure.
Embodiment
As shown in Figure 1, electronic game tool security performance detecting instrument comprises detector probe, J type thermopair, signal amplification module, signal filtering module, A/D modular converter and computing machine; J type thermopair links to each other with signal amplification module, signal filtering module, A/D modular converter, computing machine successively with detector probe and after connecing.
Temperature signal is detected by J type thermopair, and voltage and current signal are detected by application specific probe.Tested electronic game tool normal use or rationally parts temperature rise and the various electric signal under the abuse state detect by temperature, voltage, the contour accuracy parameters measuring sensor of electric current, the signal of gathering through signal processing module conditioning and conversion after, the USB mechanism by PC sends data to computing machine.Operation LabVIEW virtual instrument platform on the computing machine, the testing process module of three main electronic game tool standards of embedded GB19865-2005, EN62115-2005 and ANSI/UL696-2002 is analyzed and is handled the data of input, and this detecting instrument can realize that measurement parameters be chosen automatically according to different examination criteria index requests, data automatic measuring, storage and graphical demonstration, testing result analysis, processing and judgement be in interior multinomial function.
As shown in Figure 2, the circuit of signal amplification module is: amplifier U1 pin 1 links to each other with stiff end with the convertible tip of adjustable resistance R2, another stiff end of adjustable resistance R2 links to each other with amplifier U1 pin 8,4 pin of amplifier U1 and resistance R 4 one ends, capacitor C 3 negative poles link to each other, the power supply of resistance R 4 other ends and-12V, capacitor C 3 minus earths, amplifier U1 pin 4 ground connection, 6 pin of amplifier U1 link to each other with resistance R 3 one ends, resistance R 3 other ends are voltage output end VO, capacitor C 2 positive poles link to each other with voltage output end VO, capacitor C 2 minus earths, 7 pin of amplifier and resistance R 1 one ends, 1 anodal linking to each other of capacitor C, resistance R 1 other end links to each other capacitor C 1 minus earth with the power supply of+12V.
The signal of thermopair output is very little, is approximately the millivolt level, 0～11mV, and the required voltage range of A/D conversion is 0～5 volt, needs it is amplified about 500 times, therefore very high to the requirement of signal amplifier.This amplifying circuit by low temperature float, high cmrr, low bias current, low noise amplifier AD620 be core, adds that zero-bit adjusts resistance, gain and adjust resistance, excitation power supply circuit, output violent change holding circuit and form.Wherein AD620 No. 1, No. 8 pin need gain of cross-over connection to adjust resistance R G to adjust enlargement factor, need provide positive and negative operating voltage mutually with No. 7 pin No. 4, can be from the magnitude of voltage after the pin 6 output amplifications by the voltage that the input of 2,3 pins is amplified.Pin 5 is a reference data, if 5 ground connection, so 6 output be and ground between relative voltage.Owing to adopted three amplifiers to improve and the absolute value adjustment technology, only need with a resistance just accurately status AD620 gain is set, and experimental results show that when G=100, gain accuracy can reach 0.15%.Be to improve instrument amplifier AD620 input overload capacity, connect the respectively sheet resistance in 400 Europe of two input ends, guarantee safety bear reach several hrs, input up to ± 15V or ± overload signal of 6A.
As shown in Figure 3, the circuit of signal filtering module is: amplifier U2 pin 1 links to each other with adjustable resistance R8 two stiff ends respectively with pin 8, variable resistor R8 convertible tip and amplifier U2 pin 7 ,+12 power supply links to each other with the positive pole of capacitor C 7, capacitor C 7 minus earths, amplifier U2 pin 2 links to each other with amplifier U2 pin 6 with capacitor C 4 negative poles, capacitor C 4 positive poles link to each other with resistance R 6 one ends with resistance R 5 one ends, resistance R 5 other ends link to each other with input signal VO, and resistance R 6 other ends link to each other with amplifier U2 pin 3; Capacitor C 6 positive poles link to each other with amplifier U2 pin 3, capacitor C 6 minus earths; Amplifier U2 pin 4 links to each other capacitor C 5 plus earths with the power supply of+12V with capacitor C 5 negative poles; Amplifier U2 pin 6 links to each other with resistance R 7 one ends, and resistance R 7 other ends are output signal VO '.
To disturb in order suppressing preferably, to select the low-pass filter of Butterworth type for use, corner frequency is set to 8Hz, and passive device is selected the operational amplifier OP07 of low noise, high precision, low price for use.As shown above, VO and VO ' are the input and output voltage of filtering circuit in the way, and electrochemical capacitor C615 and C616 carry out filtering to the power supply of OP07, to eliminate power-supply ripple, improve system's anti-interference.
As shown in Figure 4, the circuit of A/D modular converter is: A/D conversion chip U3 pin 1 links to each other with capacitor C 8 one ends, capacitor C 8 other end ground connection; A/D conversion chip U3 pin 6 links to each other with the power supply of+5V; A/D conversion chip U3 pin 17,18,19,20,21,22,23,28 is ground connection all; A/D conversion chip U3 pin 25 is that constant module U4 pin 2 links to each other with capacitor C 12 1 ends, resistance R 9 one ends, linearity, capacitor C 12 other ends link to each other with the power supply of+5V, resistance R 9 other end ground connection, linearity are constant module U4 pins 1 with linearity is that constant module U4 pin 3 links to each other and ground connection all; A/D conversion chip U3 pin 26 links to each other capacitor C 11 minus earths with capacitor C 11 positive poles; A/D conversion chip U3 pin 27 links to each other with capacitor C 9 one ends, capacitor C 10 1 ends and all links to each other with the power supply of+5V, and capacitor C 9 other ends, capacitor C 10 other ends are ground connection all.
Select 12 bit parallel A/D converter MAX197 of multirange, 8 passages, it is a parallel bus A/D chip, adopts and approaches working method one by one.Input tracking/the holding circuit of chip internal is that 12 position digital signals are exported with analog signal conversion.As shown in the figure, host computer links to each other with D0～D7 of MAX by P0.0～P0.7, and the initialization quantities of vacancy of input MAX197 also read the translation data result.SHDN pin ground connection, this moment, chip was in the low-power consumption duty; Selecting SIN IN is signal input part, and the function of INT pin is for realizing interrupt operation; The HBEN pin is as the selection wire of the high and low bit data of interpretation.In order to improve the input signal reliability, AGND and DGND are separate in the circuit of design, all use the electric capacity of 0.1 μ F to eliminate power-supply ripple between power supply and the simulation ground.
Claims (4)
1. an electronic game tool security performance detecting instrument is characterized in that comprising detector probe, J type thermopair, signal amplification module, signal filtering module, A/D modular converter and computing machine; J type thermopair links to each other with signal amplification module, signal filtering module, A/D modular converter, computing machine successively with detector probe and after connecing.
2. a kind of electronic game tool security performance detecting instrument according to claim 1, the circuit that it is characterized in that described signal amplification module is: amplifier U1 pin 1 links to each other with stiff end with the convertible tip of adjustable resistance R2, another stiff end of adjustable resistance R2 links to each other with amplifier U1 pin 8,4 pin of amplifier U1 and resistance R 4 one ends, capacitor C 3 negative poles link to each other, the power supply of resistance R 4 other ends and-12V, capacitor C 3 minus earths, amplifier U1 pin 4 ground connection, 6 pin of amplifier U1 link to each other with resistance R 3 one ends, resistance R 3 other ends are voltage output end VO, capacitor C 2 positive poles link to each other with voltage output end VO, capacitor C 2 minus earths, 7 pin of amplifier and resistance R 1 one ends, 1 anodal linking to each other of capacitor C, resistance R 1 other end links to each other capacitor C 1 minus earth with the power supply of+12V.
3. a kind of electronic game tool security performance detecting instrument according to claim 1, the circuit that it is characterized in that described signal filtering module is: amplifier U2 pin 1 links to each other with adjustable resistance R8 two stiff ends respectively with pin 8, variable resistor R8 convertible tip and amplifier U2 pin 7, + 12 power supply links to each other with the positive pole of capacitor C 7, capacitor C 7 minus earths, amplifier U2 pin 2 links to each other with amplifier U2 pin 6 with capacitor C 4 negative poles, capacitor C 4 positive poles link to each other with resistance R 6 one ends with resistance R 5 one ends, resistance R 5 other ends link to each other with input signal VO, and resistance R 6 other ends link to each other with amplifier U2 pin 3; Capacitor C 6 positive poles link to each other with amplifier U2 pin 3, capacitor C 6 minus earths; Amplifier U2 pin 4 links to each other capacitor C 5 plus earths with the power supply of+12V with capacitor C 5 negative poles; Amplifier U2 pin 6 links to each other with resistance R 7 one ends, and resistance R 7 other ends are output signal VO '.
4. a kind of electronic game tool security performance detecting instrument according to claim 1, the circuit that it is characterized in that described A/D modular converter are that A/D conversion chip U3 pin 1 links to each other with capacitor C 8 one ends, capacitor C 8 other end ground connection; A/D conversion chip U3 pin 6 links to each other with the power supply of+5V; A/D conversion chip U3 pin 17,18,19,20,21,22,23,28 all ground connection A/D conversion chip U3 pin 25 is that constant module U4 pin 2 links to each other with capacitor C 12 1 ends, resistance R 9 one ends, linearity, capacitor C 12 other ends link to each other with the power supply of+5V, resistance R 9 other end ground connection, linearity are constant module U4 pins 1 with linearity is that constant module U4 pin 3 links to each other and ground connection all; A/D conversion chip U3 pin 26 links to each other capacitor C 11 minus earths with capacitor C 11 positive poles; A/D conversion chip U3 pin 27 links to each other with capacitor C 9 one ends, capacitor C 10 1 ends and all links to each other with the power supply of+5V, and capacitor C 9 other ends, capacitor C 10 other ends are ground connection all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291800761U CN201637804U (en) | 2010-02-05 | 2010-02-05 | Electric toy safety performance detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291800761U CN201637804U (en) | 2010-02-05 | 2010-02-05 | Electric toy safety performance detecting instrument |
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| CN201637804U true CN201637804U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010291800761U Expired - Fee Related CN201637804U (en) | 2010-02-05 | 2010-02-05 | Electric toy safety performance detecting instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840935A (en) * | 2011-06-21 | 2012-12-26 | 财团法人工业技术研究院 | Sensing device and force sensing system thereof |
| CN106226622A (en) * | 2016-07-22 | 2016-12-14 | 安徽亚辉电气自动化有限公司 | A kind of monitoring system for three phase combined over-voltage protector |
| CN109507488A (en) * | 2019-01-21 | 2019-03-22 | 武汉裕量信息科技有限公司 | Electromagnetism interference free performance test macro |
-
2010
- 2010-02-05 CN CN2010291800761U patent/CN201637804U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840935A (en) * | 2011-06-21 | 2012-12-26 | 财团法人工业技术研究院 | Sensing device and force sensing system thereof |
| CN106226622A (en) * | 2016-07-22 | 2016-12-14 | 安徽亚辉电气自动化有限公司 | A kind of monitoring system for three phase combined over-voltage protector |
| CN109507488A (en) * | 2019-01-21 | 2019-03-22 | 武汉裕量信息科技有限公司 | Electromagnetism interference free performance test macro |
| CN109507488B (en) * | 2019-01-21 | 2021-10-01 | 武汉裕量信息科技有限公司 | Electromagnetic anti-interference performance test system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20130205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |