CN201820343U - Anti-dismantling detection device for alarm device - Google Patents
Anti-dismantling detection device for alarm device Download PDFInfo
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- CN201820343U CN201820343U CN2010205675532U CN201020567553U CN201820343U CN 201820343 U CN201820343 U CN 201820343U CN 2010205675532 U CN2010205675532 U CN 2010205675532U CN 201020567553 U CN201020567553 U CN 201020567553U CN 201820343 U CN201820343 U CN 201820343U
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Abstract
The utility model discloses an anti-dismantling detection device for an alarm device. The anti-dismantling detection device comprises a magnet module, a magnetic sensor module and a signal processing module, wherein the magnet module is mounted on a detected device and used for providing a relatively stable magnetic field environment for a magnetic sensor; the magnetic sensor module is mounted on a detection device and used for detecting the change of the magnetic field and outputting a switching quantity signal about whether the magnetic field disappears or not; and the signal processing module is used for receiving and processing the switching quality signal output by the magnetic sensor module, and the process signal is used as the basis for judging whether the detected device exists or not. The anti-dismantling detection device for the alarm device is convenient for mounting; and the detection sensitivity and the reliability are improved.
Description
Technical field
The utility model relates to a kind of pick-up unit of panalarm, relates in particular to a kind of tamper pick-up unit of panalarm.
Background technology
Guard against theft and alarm system is mainly by pick-up unit (as infrared transceiver, vibration transducer, near line of induction etc.), alarm, controlling alarm main frame and formations such as various alarm linkage device and transmission line.Under the state of deploying troops on garrison duty, in case there is illegal invasion person to attempt boundary overstep (or enclosure wall), alert promptly takes place, can reflect alarm set point (warning defence area) on the main frame of Central Control Room.In order to guarantee the terminal anti-theft reliably working, general terminal anti-theft adopts the damage preventing alarm measure, pick-up unit can prevent that not only cabinet from illegally opening, peripheral hardware (LCD etc.) is embraced away, and self also possess the anti-function of destroying: realize breaking alarming, short circuit is also reported to the police.According to standard GA/T 368-2001(IEC 60839-1-1(1988)) requirement, intrusion alarm system has all required the tamper pick-up unit, is used for surveying intentional interference (demolition or open) parts of warning system or the device of a part.
Existing tamper warning device, all adopt following method to realize:
The breaking-proof switch of compressing tablet formula is installed on intrusion alarm equipment, triggers warning when switch unclamps, as shown in Figure 1, detected equipment 4 links to each other with signal processing module 3 by detector switch 5.
Common mode has two kinds:
1. spring is pressed in main frame mainboard and between the walls
2. push button installs in main frame inside, and when opening the main frame lid, button loses pressure and unclamps, and causing open circuit to report to the police.
Above-mentioned implementation, because the mechanical trip of switch or spring is limited, very high to the requirement of installing, the long and too short of distance all can cause the malfunctioning of pick-up unit, and after working long hours, also there is the risk of inefficacy mechanical switch or spring in itself.
In order to remedy the malfunctioning security risk of bringing of pick-up unit, be necessary to provide easy for installation, detect sensitive tamper warning device reliably.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of tamper pick-up unit of panalarm, and is easy for installation, improves detection sensitivity and reliability.
The utility model is to solve the problems of the technologies described above the tamper pick-up unit that the technical scheme that adopts provides a kind of panalarm, comprises the magnet module, is installed on the detected equipment, for Magnetic Sensor provides a metastable magnetic field environment; Magnetic sensor module is installed on the checkout equipment, is used for detecting the variation in magnetic field, and exports the switching value signal whether a magnetic field disappears; Signal processing module is used for accepting to handle the switching value signal that magnetic sensor module is exported, and the signal after the processing is as the foundation of judging that whether detected equipment exists.
The tamper pick-up unit of above-mentioned panalarm, wherein, it is the circular ndfeb magnet of 20mm that described magnet module adopts diameter.
The tamper pick-up unit of above-mentioned panalarm, wherein, described Magnetic Sensor is a Hall switch sensor.
The tamper pick-up unit of above-mentioned panalarm, wherein, the detection of described magnet module and magnetic sensor module distance is 0～4cm.
The utility model contrast prior art has following beneficial effect: the tamper pick-up unit of the panalarm that the utility model provides, whether detect detected equipment by magnet module and magnetic sensor module exists, the detection principle that has adopted on-mechanical to realize, on the detection distance, bigger dirigibility is arranged, make that the installation of equipment is very convenient, the sensitivity and the reliability of detection have also improved greatly.
Description of drawings
Fig. 1 is the tamper pick-up unit structural representation of existing panalarm;
Fig. 2 is the tamper pick-up unit structural representation of the utility model panalarm;
Fig. 3 is the principle of work synoptic diagram of the tamper pick-up unit of the utility model panalarm.
Among the figure:
1 magnet module, 2 Hall switch sensors, 3 signal processing modules
4 detected equipment 5 detector switches
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 2 is the tamper pick-up unit structural representation of the utility model panalarm.
See also Fig. 2, the tamper pick-up unit of the panalarm that the utility model provides comprises magnet module 1, is installed on the detected equipment 4, for Magnetic Sensor provides a metastable magnetic field environment; Magnetic sensor module is installed on the checkout equipment, is used for detecting the variation in magnetic field, when detected equipment 4 leaves pick-up unit, when magnetic field disappears, exports a switching value signal; Signal processing module 3 is used for accepting to handle the switching value signal that magnetic sensor module is exported, and this module places the back of sensor assembly, and the signal after the processing will provide foundation for the judgement that pick-up unit provides detected equipment whether to exist.
Fig. 3 is the principle of work synoptic diagram of the tamper pick-up unit of the utility model panalarm.
See also Fig. 3, tamper pick-up unit principle of work of the present utility model is as follows: magnet module employing diameter is the circular ndfeb magnet about 20mm, it is MLX90248 that Magnetic Sensor is selected the high sensitivity Hall switch sensor model of Melexis company, and signal processing module can adopt existing digital sampling and processing.Under the situation that the equipment normal mounting puts in place, magnet module 1 is very near from the distance of Hall switch sensor 2, Hall switch sensor detects the existence in magnetic field will export a stable voltage signal, through after level signal processing module 3 will export a logical one signal after handling; In case detected equipment 4 is moved the fixed position by improper tearing open, Hall switch sensor 2 will be exported a 0V signal because of the disappearance in magnetic field, through after level signal processing module 3 will export a logic zero signal after handling.Logic zero signal or logical one signal according to pick-up unit output are easy to judge whether detected equipment is illegally removed.
In sum, the detection principle that pick-up unit of the present utility model has adopted on-mechanical to realize, on the detection distance, bigger dirigibility is arranged, under the situation of magnet that adopts above-mentioned specific embodiment to recommend and Hall element, Hall element all can be sensed the existence in magnetic field in the scope from about magnet 0-4cm, and can output switching signal, in case Hall element has surpassed the distance of 4cm from the distance of magnet, to export a switching value model, the detection stroke of common spring or push-button switch is difficult to surpass the distance of 1cm, therefore the distance of 0-4cm will be much larger than the detection distance of common spring or push-button switch, make that the installation of equipment is very convenient, the sensitivity and the reliability of detection have also improved greatly.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (4)
1. the tamper pick-up unit of a panalarm is characterized in that, described pick-up unit comprises:
The magnet module is installed on the detected equipment, for Magnetic Sensor provides a metastable magnetic field environment;
Magnetic sensor module is installed on the checkout equipment, is used for detecting the variation in magnetic field, and exports the switching value signal whether a magnetic field disappears;
Signal processing module is used for accepting to handle the switching value signal that magnetic sensor module is exported, and the signal after the processing is as the foundation of judging that whether detected equipment exists.
2. the tamper pick-up unit of panalarm as claimed in claim 1 is characterized in that, it is the circular ndfeb magnet of 20mm that described magnet module adopts diameter.
3. the tamper pick-up unit of panalarm as claimed in claim 1 is characterized in that, described Magnetic Sensor is a Hall switch sensor.
4. as the tamper pick-up unit of each described panalarm of claim 1～3, it is characterized in that the detection distance of described magnet module and magnetic sensor module is 0～4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205675532U CN201820343U (en) | 2010-10-20 | 2010-10-20 | Anti-dismantling detection device for alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205675532U CN201820343U (en) | 2010-10-20 | 2010-10-20 | Anti-dismantling detection device for alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820343U true CN201820343U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205675532U Expired - Lifetime CN201820343U (en) | 2010-10-20 | 2010-10-20 | Anti-dismantling detection device for alarm device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093566A (en) * | 2013-01-08 | 2013-05-08 | 中国船舶重工集团公司第七一○研究所 | Article anti-thief alarm device based on magnetic testing |
| WO2013179183A1 (en) * | 2012-06-01 | 2013-12-05 | International Business Machines Corporation | Anti-tamper system |
| CN103794023A (en) * | 2012-11-02 | 2014-05-14 | 北京计算机技术及应用研究所 | Low-power anti-dismantling alarm device |
| CN105187041A (en) * | 2015-09-28 | 2015-12-23 | 南京艾驰电子科技有限公司 | Non-contact switch with magnetic force feedback |
| CN105759701A (en) * | 2016-02-24 | 2016-07-13 | 深圳市纬科信息技术有限公司 | Intelligent magnetic induction tamper alarm method and device |
| CN105915897A (en) * | 2016-05-30 | 2016-08-31 | 浙江宇视科技有限公司 | Method and device for detecting whether outer cover of camera loosens, and camera |
| CN106841728A (en) * | 2017-01-20 | 2017-06-13 | 国网山东省电力公司滨州供电公司 | A kind of thief-proof Denso table based on intelligent electric meter connects electric system |
| CN107016304A (en) * | 2017-04-12 | 2017-08-04 | 上海汇尔通信息技术有限公司 | The antiwithdrawal device and tamper method of electronic equipment |
| CN107038538A (en) * | 2017-06-16 | 2017-08-11 | 东莞市博实车联信息咨询服务有限公司 | Warning System and method that a kind of positioner is removed |
| CN107092226A (en) * | 2017-06-16 | 2017-08-25 | 东莞市博实车联信息咨询服务有限公司 | Warning System and method that positioner is removed |
| CN108280897A (en) * | 2018-02-06 | 2018-07-13 | 深圳市物语智联科技有限公司 | A kind of tamper unloading system based on image identification system |
| CN109164494A (en) * | 2018-08-09 | 2019-01-08 | 厦门硅田系统工程有限公司 | A kind of ship terminal removes warning system and method |
| CN110599733A (en) * | 2019-10-14 | 2019-12-20 | 浙江圣博创新科技有限公司 | Anti-dismounting device for smoke alarm base and working steps thereof |
| CN110989429A (en) * | 2019-11-25 | 2020-04-10 | 杨光 | Split type thing networking intelligent monitoring terminal |
| CN111771233A (en) * | 2018-02-28 | 2020-10-13 | 阿莫先恩电子电器有限公司 | Article position tracking device with anti-theft function |
-
2010
- 2010-10-20 CN CN2010205675532U patent/CN201820343U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013179183A1 (en) * | 2012-06-01 | 2013-12-05 | International Business Machines Corporation | Anti-tamper system |
| GB2517870A (en) * | 2012-06-01 | 2015-03-04 | Ibm | Anti-tamper system |
| CN103794023A (en) * | 2012-11-02 | 2014-05-14 | 北京计算机技术及应用研究所 | Low-power anti-dismantling alarm device |
| CN103794023B (en) * | 2012-11-02 | 2016-04-13 | 北京计算机技术及应用研究所 | A kind of low-power consumption Anti-dismantling alarm device |
| CN103093566A (en) * | 2013-01-08 | 2013-05-08 | 中国船舶重工集团公司第七一○研究所 | Article anti-thief alarm device based on magnetic testing |
| CN105187041B (en) * | 2015-09-28 | 2018-08-17 | 南京艾驰电子科技有限公司 | A kind of noncontacting switch of magnetic force feedback |
| CN105187041A (en) * | 2015-09-28 | 2015-12-23 | 南京艾驰电子科技有限公司 | Non-contact switch with magnetic force feedback |
| CN105759701A (en) * | 2016-02-24 | 2016-07-13 | 深圳市纬科信息技术有限公司 | Intelligent magnetic induction tamper alarm method and device |
| CN105915897A (en) * | 2016-05-30 | 2016-08-31 | 浙江宇视科技有限公司 | Method and device for detecting whether outer cover of camera loosens, and camera |
| CN106841728A (en) * | 2017-01-20 | 2017-06-13 | 国网山东省电力公司滨州供电公司 | A kind of thief-proof Denso table based on intelligent electric meter connects electric system |
| CN107016304A (en) * | 2017-04-12 | 2017-08-04 | 上海汇尔通信息技术有限公司 | The antiwithdrawal device and tamper method of electronic equipment |
| CN107038538A (en) * | 2017-06-16 | 2017-08-11 | 东莞市博实车联信息咨询服务有限公司 | Warning System and method that a kind of positioner is removed |
| CN107092226A (en) * | 2017-06-16 | 2017-08-25 | 东莞市博实车联信息咨询服务有限公司 | Warning System and method that positioner is removed |
| CN108280897A (en) * | 2018-02-06 | 2018-07-13 | 深圳市物语智联科技有限公司 | A kind of tamper unloading system based on image identification system |
| CN111771233A (en) * | 2018-02-28 | 2020-10-13 | 阿莫先恩电子电器有限公司 | Article position tracking device with anti-theft function |
| CN109164494A (en) * | 2018-08-09 | 2019-01-08 | 厦门硅田系统工程有限公司 | A kind of ship terminal removes warning system and method |
| CN109164494B (en) * | 2018-08-09 | 2020-08-04 | 厦门硅田系统工程有限公司 | Ship terminal removal alarm method based on ship terminal removal alarm system |
| CN110599733A (en) * | 2019-10-14 | 2019-12-20 | 浙江圣博创新科技有限公司 | Anti-dismounting device for smoke alarm base and working steps thereof |
| CN110989429A (en) * | 2019-11-25 | 2020-04-10 | 杨光 | Split type thing networking intelligent monitoring terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MOX AUTOMATIC CONTROL INFORMATION (CHINA) CO., LTD Free format text: FORMER OWNER: MOX BUILDING INTELLIGENCE (HANGZHOU) CO., LTD. Effective date: 20120618 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310023 HANGZHOU, ZHEJIANG PROVINCE TO: 314006 JIAXING, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120618 Address after: Jiaxing City, Zhejiang province 314006 Nanhu District Ling Gong Tang Road No. 3339 (Jiaxing city) building A room 407 Patentee after: Automation information (China) Co., Ltd. Address before: 310023, No. 3, No. 3, building two, ancient rock industrial park, 398 Tianmu Road, Zhejiang, Hangzhou Patentee before: Mox Building Automation (Hangzhou) Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti-dismantling detection device for alarm device Effective date of registration: 20151028 Granted publication date: 20110504 Pledgee: Industrial Commercial Bank of China Ltd Jiaxing branch Pledgor: Automation information (China) Co., Ltd. Registration number: 2015330000067 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200318 Granted publication date: 20110504 Pledgee: Industrial Commercial Bank of China Ltd Jiaxing branch Pledgor: MOX AUTOMATIC CONTROL INFORMATION (CHINA) Co.,Ltd. Registration number: 2015330000067 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |