CN101308739A - Destruct circuit trigger detection method and switch construction thereof - Google Patents
Destruct circuit trigger detection method and switch construction thereof Download PDFInfo
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- CN101308739A CN101308739A CNA2007100743926A CN200710074392A CN101308739A CN 101308739 A CN101308739 A CN 101308739A CN A2007100743926 A CNA2007100743926 A CN A2007100743926A CN 200710074392 A CN200710074392 A CN 200710074392A CN 101308739 A CN101308739 A CN 101308739A
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Abstract
A self-destruction circuit triggering detection method and a switch structure which is used to supply triggering signals to the self-destruction control circuit are disclosed. The switch comprises a first input point and a second input point which are arranged and electrically isolated on a circuit board, a protection ring and a connector. The first input point and the second input point are electrically connected with the self-destruction control circuit. The protection ring is arranged on the circuit board, surrounding the first input point and the second input point, and is electrically connected with the self-destruction control circuit. The connector flexibly rests against the circuit board so as to conduct the first input point and the second input point. Once the self-destruction control circuit starts to work, whether the first input point and the second input point are turned off, and/ or whether the protection ring is conducted with the first input point and/or the second input point will be detected by the self-destruction control circuit. The method and the switch can improve the reliability of the triggering detection of the self-destruction circuit.
Description
Technical field
The present invention relates to finance device, relate in particular to the financial payment device, particularly the self-destruct circuit in the financial payment device triggers detection method and construction of switch.
Background technology
Self-destruct circuit in the prior art financial payment device triggers the search switch structure, as shown in Figure 1, comprise a center conductive contact 2, four peripheral conductive junction points 1 that are distributed in around this center conductive contact, and in order to connector 3 with center conductive contact 2 and peripheral conductive junction point 1 short circuit, center conductive contact 2 constitutes an input point of construction of switch, four peripheral conductive junction points 1 constitute another input point of construction of switch, usually, center conductive contact 2 is to be arranged on integratedly on the circuit board with peripheral conductive junction point 1, this circuit board is communicated with the self-destruction control circuit, connector 3 is a flexure strip, and conflicts versatilely on this circuit board, when connector 3 makes two input point short circuits of switch, self-destruction control circuit in the financial payment device enters the state of alert, in case the financial payment device meets with external attack, causes two input points of switch to occur opening circuit, will trigger the work of self-destruction control circuit, relevant controlled circuit of auto-destruct and information are guaranteed the information security of financial payment device.
This structure, if outside effractor adopts an electric conductor to insert from the slit between connector 3 and the circuit board, and cause center conductive contact 2 and peripheral conductive junction point 1 short circuit, connector 3 can not be known by the self-destruction control circuit with separating of circuit board so, that is to say: this self-destruct circuit triggers to be surveyed and will lose efficacy.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part, and a kind of structure is proposed, technology is simple, can improve the method and the construction of switch of the reliability that self-destruct circuit trigger to survey.
The technical scheme that the present invention solves the problems of the technologies described above employing is, propose a kind of self-destruct circuit and trigger detection method, in order to provide triggering signal to the self-destruction control circuit, comprise step: switch first input point and second input point that mutual electricity is isolated are set on a circuit board, and this first input point and second input point are electrically connected with this self-destruction control circuit; Be provided with one and surround the guard ring of this first input point and second input point on this circuit board, this guard ring is electrically connected with this self-destruction control circuit; A connector is set, conflicts with this circuit board versatilely, in order to this first input point and the second input point conducting; In case the self-destruction control circuit enters operating state, this first input point and second input point open circuit, and/or this guard ring and this first input point and/or the second input point generation conducting will be detected by this self-destruction control circuit.
Further, the technical scheme that the present invention solves the problems of the technologies described above employing also comprises, manufacture a kind of self-destruct circuit and trigger the search switch structure, in order to provide triggering signal to the self-destruction control circuit, comprise: be arranged on electric mutually switch first input point and second input point of isolating on the circuit board, this first input point and second input point are electrically connected with this self-destruction control circuit; Be arranged on the guard ring that surrounds this first input point and second input point on this circuit board, this guard ring is electrically connected with this self-destruction control circuit; Connector is conflicted with this circuit board versatilely, in order to this first input point and the second input point conducting; In case the self-destruction control circuit enters operating state, this first input point and second input point open circuit, and/or this guard ring and this first input point and/or the second input point generation conducting will be detected by this self-destruction control circuit.
Compare with prior art, adopt self-destruct circuit of the present invention to trigger detection method and construction of switch, can improve self-destruct circuit and trigger the reliability of surveying.
Description of drawings
Fig. 1 is the schematic diagram that the self-destruct circuit of prior art triggers the search switch structure;
Fig. 2 triggers the schematic diagram of search switch structure embodiment for self-destruct circuit of the present invention.
Embodiment
Be described in detail below in conjunction with the most preferred embodiment of the present invention shown in the accompanying drawing
Self-destruct circuit of the present invention triggers detection method and construction of switch embodiment, as shown in Figure 2, comprise a conductiving point 4 that is positioned at the center of circle, its diameter is 1 millimeter, be distributed in first conducting ring 5 outside this conductiving point 4 with one heart, circular diameter is 2 millimeters in it, outside diameter is 4 millimeters, be distributed in second conducting ring 6 outside this conducting ring 5 with one heart, garden diameter is 5.5 millimeters in it, outside diameter is 7 millimeters, be distributed in first dead ring 7 between the conductiving point 4 and first conducting ring 5 with one heart, be distributed in second dead ring 8 between first conducting ring 5 and second conducting ring 6 with one heart, and in order to the connector (not shown) with conductiving point 4 and 5 short circuits of first conducting ring.
Conductiving point 4 constitutes an input point of construction of switch, first conducting ring 5 constitutes another input point of construction of switch, conductiving point 4, first conducting ring 5, second conducting ring 6, first dead ring 7 and second dead ring 8 can be to be arranged on integratedly on the circuit board, this circuit board is communicated with the self-destruction control circuit, connector can be electrically conductive rubber piles, and conflict versatilely on this circuit board, when connector makes two input point short circuits of switch, self-destruction control circuit in the financial payment device enters the state of alert, in case the financial payment device meets with external attack, cause two input points of switch to occur opening circuit, to trigger the work of self-destruction control circuit, relevant controlled circuit of auto-destruct and information are guaranteed the information security of financial payment device.
Be different from prior art part shown in Figure 1; this structure is provided with a guard ring that two input points of switch is enclosed in the inside; second conducting ring 6 just; can set a level for this guard ring; such as by with this guard ring ground connection; and the level of guard ring is set to 0 volt; so; if outside effractor adopts an electric conductor to insert from the slit between connector and the circuit board; want to cause the words of two input point short circuits of switch; will inevitably make the conductiving point 4 and/or first conducting ring 5 and guard ring short circuit in the lump; the level that causes the conductiving point 4 and/or first conducting ring 5 is that guard ring is set level, and this state can be detected by the self-destruction control circuit, and triggers the work of self-destruction control circuit; relevant controlled circuit of auto-destruct and information are guaranteed the information security of financial payment device.
Main thought of the present invention is: two input points with switch are set are enclosed in an interior guard ring; outside intrusion to cause this two input points short circuit just must make one of this two input point or all with this guard ring short circuit; and the level of this guard ring is set, and can be detected by the self-destruction control circuit.Based on these thinkings the disclosed most preferred embodiment of the present invention is not had creationary simple replacement, change, or do further invention, all belong to the present invention's enforcement.
Claims (10)
1, a kind of self-destruct circuit triggers detection method, in order to provide triggering signal to the self-destruction control circuit, it is characterized in that, comprises step:
Switch first input point and second input point that mutual electricity is isolated are set on a circuit board, and this first input point and second input point are electrically connected with this self-destruction control circuit;
Be provided with one and surround the guard ring of this first input point and second input point on this circuit board, this guard ring is electrically connected with this self-destruction control circuit;
A connector is set, conflicts with this circuit board versatilely, in order to this first input point and the second input point conducting;
In case the self-destruction control circuit enters operating state, this first input point and second input point open circuit, and/or this guard ring and this first input point and/or the second input point generation conducting will be detected by this self-destruction control circuit.
2, self-destruct circuit as claimed in claim 1 triggers detection method, it is characterized in that: with this guard ring ground connection.
3, self-destruct circuit as claimed in claim 2 triggers detection method, it is characterized in that: this first input point is a circle.
4, self-destruct circuit as claimed in claim 3 triggers detection method, it is characterized in that: this second input point is an annulus concentric with this first input point.
5, self-destruct circuit as claimed in claim 4 triggers detection method, and it is characterized in that: this guard ring is an annulus concentric with this second input point.
6, a kind of self-destruct circuit triggers the search switch structure, in order to provide triggering signal to the self-destruction control circuit, it is characterized in that, comprising:
Be arranged on electric mutually switch first input point and second input point of isolating on the circuit board, this first input point and second input point are electrically connected with this self-destruction control circuit;
Be arranged on the guard ring that surrounds this first input point and second input point on this circuit board, this guard ring is electrically connected with this self-destruction control circuit;
Connector is conflicted with this circuit board versatilely, in order to this first input point and the second input point conducting;
In case the self-destruction control circuit enters operating state, this first input point and second input point open circuit, and/or this guard ring and this first input point and/or the second input point generation conducting will be detected by this self-destruction control circuit.
7, self-destruct circuit as claimed in claim 6 triggers the search switch structure, it is characterized in that: this guard ring ground connection.
8, self-destruct circuit as claimed in claim 7 triggers the search switch structure, it is characterized in that: this first input point is a circle.
9, self-destruct circuit as claimed in claim 8 triggers the search switch structure, it is characterized in that: this second input point is an annulus concentric with this first input point.
10, self-destruct circuit as claimed in claim 9 triggers the search switch structure, and it is characterized in that: this guard ring is an annulus concentric with this second input point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710074392A CN101308739B (en) | 2007-05-16 | 2007-05-16 | Destruct circuit trigger detection method and switch construction thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710074392A CN101308739B (en) | 2007-05-16 | 2007-05-16 | Destruct circuit trigger detection method and switch construction thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101308739A true CN101308739A (en) | 2008-11-19 |
| CN101308739B CN101308739B (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710074392A Active CN101308739B (en) | 2007-05-16 | 2007-05-16 | Destruct circuit trigger detection method and switch construction thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101308739B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819915A (en) * | 2012-08-10 | 2012-12-12 | 深圳市九思泰达技术有限公司 | Tamper switch and financial machine |
| CN102930648A (en) * | 2012-07-03 | 2013-02-13 | 青岛海信智能商用系统有限公司 | Information security protection device |
| CN102968854A (en) * | 2012-11-29 | 2013-03-13 | 长城信息产业股份有限公司 | Uncovered data self-destruction device for safety payment terminal and method |
| CN106097606A (en) * | 2016-06-29 | 2016-11-09 | 福建联迪商用设备有限公司 | Safe Anti-dismounting structure and using method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200534U (en) * | 1987-01-22 | 1987-10-14 | 赵祥宽 | Setting switch for alarming shift of matter |
| FR2660484B1 (en) * | 1990-03-30 | 1993-08-06 | Sextant Avionique | MINIATURE TOUCH SWITCH DEVICE. |
| US5440917A (en) * | 1994-04-28 | 1995-08-15 | Glenn Smith | Leak detector |
| CN2622346Y (en) * | 2003-01-24 | 2004-06-30 | 荆孝仁 | Self-destroyed type safety note transportation box |
-
2007
- 2007-05-16 CN CN200710074392A patent/CN101308739B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930648A (en) * | 2012-07-03 | 2013-02-13 | 青岛海信智能商用系统有限公司 | Information security protection device |
| CN102930648B (en) * | 2012-07-03 | 2015-09-16 | 青岛海信智能商用系统有限公司 | Information safety protector |
| CN102819915A (en) * | 2012-08-10 | 2012-12-12 | 深圳市九思泰达技术有限公司 | Tamper switch and financial machine |
| CN102819915B (en) * | 2012-08-10 | 2015-01-28 | 深圳市九思泰达技术有限公司 | Tamper switch and financial machine |
| CN102968854A (en) * | 2012-11-29 | 2013-03-13 | 长城信息产业股份有限公司 | Uncovered data self-destruction device for safety payment terminal and method |
| CN106097606A (en) * | 2016-06-29 | 2016-11-09 | 福建联迪商用设备有限公司 | Safe Anti-dismounting structure and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101308739B (en) | 2010-05-26 |
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