CN202795624U - Apparatus for detection in-position and out-of-position state of electronic product - Google Patents
Apparatus for detection in-position and out-of-position state of electronic product Download PDFInfo
- Publication number
- CN202795624U CN202795624U CN 201220401149 CN201220401149U CN202795624U CN 202795624 U CN202795624 U CN 202795624U CN 201220401149 CN201220401149 CN 201220401149 CN 201220401149 U CN201220401149 U CN 201220401149U CN 202795624 U CN202795624 U CN 202795624U
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- data line
- product
- charging data
- charging
- electronic product
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- Burglar Alarm Systems (AREA)
Abstract
The utility model aims at providing an apparatus for detecting in-position and out-of-position states of an electronic product, which does not give a false alarm or fail to report. The apparatus for detecting the in-position and out-of-position states of the electronic device, at least, comprises a charging data line (1) and a detection circuit (2), wherein the charging data line (1) is connected with the electronic product (3) via a standard interface. The apparatus is characterized in that the inside of the charging data line (1) is provided with a line or a component which form electrical connection with a metal portion of a housing of an output plug and simultaneously form electrical connection with a power positive electrode output by the detection circuit (2).
Description
Technical field
The present invention relates to a kind of pick-up unit of electronic product, especially a kind ofly utilize data-interface to charge or the electronic product of the transmission of data burglar alarm pick-up unit in display is showed or during unmanned.
Background technology
In the Experiential Marketing pattern, often need to allow the function of client's liberated experience product; In some half public or public situation, need to some charging of small size digital product or long period the transmission of data, cause easily product to lose.
In the prior art, a kind of digital product alarm is arranged, utilize a plurality of elastic switchs, stick on respectively table top and need above the anti-lost product, utilize the state change that state changes and the connecting line disconnection causes of elastic switch to report to the police as detecting according to, this method does not change state because inserting the elastic switch surface of contact with the thin slice instrument by switch, thereby causes burglar alarm unreliable.Another method is to utilize the charging current of electric circuit inspection product, exists such as charging current, judges that then product is in place; Be 0 such as charging current, why judge that product offs normal, thereby report to the police.There are some problems in this method: the first is consciously or unconsciously run into charging inlet, causes the charge port loose contact, may produce wrong report; Two to be products of having can be 0 being full of electric after-current for it, thereby produce wrong report; It three is that the product that has adopts pulse charging method, and at the pulse trough, charging current is 0, thereby produces wrong report; Its four be if with detect the multipoint data weighting then the delay judgement product whether off normal, although can false alarm reduction, can cause failing to report, it is antitheft unreliable to make.
Summary of the invention
The present invention aims to provide a kind of electronic product of not reporting by mistake, also can not failing to report dislocation detecting device in place.
The principle of existing charging anti-theft device generally all is to provide the sub-product of one road Power supply to charge by alarm, detect simultaneously charging current have or not judge whether product in place.Significant improvement of the present invention is: abandon having or not as judging whether sign in place of product of the charging current of testing product own, perhaps just with the having or not as judging whether auxiliary or supplemental flag in place of product of product charging current, whether main metal shell by detection alarm charging data line plug has to be electrically connected with power supply ground and is used as judging whether sign in place of product.All utilize the electronic product of data-interface charging or the transmission of data, the capital is communicated with the metal shell of data-interface with power supply ground, and the shell of the plug of most of charging wires or data line can not link to each other with the line seedbed that powers on, if in the circuit of alarm or connect on the charging data line of alarm and electronic product positive source is electrically connected by electronic devices and components with the shell of charging data line, then whether detect the variation of corresponding electronic signal by testing circuit, it is in place to monitor product.If alarm has inserted the data-interface of electronic product by charging data line, then the shell of charging data line links to each other with power supply ground by the shell of electronic product data interface, and the positive source of exporting in the alarm forms the loop by the electronic devices and components that connect the charging data line shell with ground; If charging data line leaves the data-interface of electronic product, then corresponding circuit disconnects; Whether the variation of the state by detecting this conducting and disconnection can reliable detection needs antitheft electronic product in place or off normal.
A kind of detected electrons product device of offing normal in place, at least comprise charging data line (1) and testing circuit (2), charging data line (1) is connected with electronic product (3) by standard interface, it is characterized in that: charging data line (1) inside has circuit or components and parts partly to form with the metal of the shell of output plug to be electrically connected, and forms with the positive source of testing circuit (2) output simultaneously and be electrically connected.
As a kind of product structure of simplifying, charging data line (1) can be connected as a single entity with testing circuit (2).
Description of drawings
Fig. 1 is structural representation of the present invention.
Implementation
The below specifically describes embodiment of the present invention to show that in place the offing normal to mobile phone detected as example in the alarm.
Example 1: mobile phone generally adopts the MICRO USB interface as data transmission and charging inlet, we insert the charging delivery outlet of showing alarm with an end of charging data line (1), the positive source of the other end of charging data line (1) is linked to each other with the metal shell of MICRO USB interface by a resistance, showing that alarm inside arranges testing circuit (2) simultaneously, measure the loop current of exporting between charge power supply positive pole and the negative pole by testing circuit (2), if charging data line (1) is inserted into the charging inlet of mobile phone (3), form the loop this moment between positive source and power supply ground, no matter then whether mobile phone (3) has charging current, can not affect testing circuit (2) to mobile phone judgement of offing normal in place, can not cause showing the alarm wrong report; If the plug of charging data line (1) is extracted or charging data line broken string from mobile phone (3), then the loop disconnects, and also is 0 to the charging current of mobile phone (3) simultaneously, and testing circuit this moment (2) just can judge that mobile phone offs normal, and drives and shows the alarm warning.
Example 2: we arrange testing circuit (2) in the inside of showing alarm, and from the resistance of 2 series connection of positive source access, the other end links to each other with the shell of the output plug of charging data line (1) by a lead-in wire in the circuit.When charging data line (1) inserts mobile phone (3), positive source forms the loop by resistance and the power supply ground of 2 series connection, no matter whether mobile phone this moment (3) is charging or no charging current arranged, the voltage that testing circuit (2) detects in the middle of 2 resistance in seriess is starkly lower than supply voltage; If extract the plug of charging data line (1), then the loop that forms of resistance in series disconnects, and then the voltage that detects of testing circuit (2) is equal to supply voltage substantially; Can judge by the variation of check point current potential whether mobile phone is in place.
Since plug and socket to be connected contact area large, little unlike power lead or signal wire contact point, displacement disconnects easily, as long as plug has to link to each other with the shell of socket and then can not produce wrong report, simultaneously because disconnection is bound to cause electric current, change in voltage, do not fail to report so also can not produce, the present invention is a kind of very reliable mobile phone pick-up unit of offing normal in place of very simply judging again simultaneously.
By above example as can be known, the present invention is very reliably simple and practical again, is very easy to implement, and has overcome all defect of existing market electronic product alarm pick-up unit.Above embodiment does not represent the constraint to protection domain of the present invention, the present invention is carried out the explanation of implementation as just special case.
Claims (2)
1. detected electrons product device of offing normal in place, at least comprise charging data line (1) and testing circuit (2), charging data line (1) is connected with electronic product (3) by standard interface, it is characterized in that: charging data line (1) inside has circuit or components and parts partly to form with the metal of the shell of output plug to be electrically connected, and forms with the positive source of testing circuit (2) output simultaneously and be electrically connected.
2. detected electrons product according to claim 1 device of offing normal in place is characterized in that: as a kind of product structure of simplifying, charging data line (1) can be connected as a single entity with testing circuit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401149 CN202795624U (en) | 2012-08-14 | 2012-08-14 | Apparatus for detection in-position and out-of-position state of electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401149 CN202795624U (en) | 2012-08-14 | 2012-08-14 | Apparatus for detection in-position and out-of-position state of electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202795624U true CN202795624U (en) | 2013-03-13 |
Family
ID=47822839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220401149 Expired - Fee Related CN202795624U (en) | 2012-08-14 | 2012-08-14 | Apparatus for detection in-position and out-of-position state of electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202795624U (en) |
-
2012
- 2012-08-14 CN CN 201220401149 patent/CN202795624U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20160814 |