CN101510379B - Electronic seal and control method thereof - Google Patents
Electronic seal and control method thereof Download PDFInfo
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- CN101510379B CN101510379B CN2009100379040A CN200910037904A CN101510379B CN 101510379 B CN101510379 B CN 101510379B CN 2009100379040 A CN2009100379040 A CN 2009100379040A CN 200910037904 A CN200910037904 A CN 200910037904A CN 101510379 B CN101510379 B CN 101510379B
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- intermediate plate
- system controller
- seals
- alarm
- splicing ears
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Abstract
The invention discloses an electronic seal and a control method thereof. The electronic seal comprises a first clamping piece, a second clamping piece, a system controller, an alarm, and one or a plurality of groups of magnetic sensitive switches and permanent magnet elements which are respectively arranged on the first clamping piece and the second clamping piece, wherein the magnetic sensitive switches are connected with the system controller, each group of magnetic sensitive switches are controlled by the identical group of permanent magnet elements, and the alarm is controlled by the system controller. The system controller judges whether the electronic seal is in perfect sealing condition by detecting the condition of the magnetic sensitive switches, and when any magnetic sensitive switch is in abnormal condition, the system controller outputs warning signals to the alarm. The invention has the advantages that the volume is small, and the controller is designed between the clamping pieces; the system can perform remote alarming through GPRS, and can monitor files in real time; and the structure is simple, the cost is low, and the operation is easy.
Description
Technical field
The present invention relates to strip of paper used for sealing, specifically is a kind of e-seals and control method thereof.
Background technology
Present strip of paper used for sealing adopts always that rubberizing water or paste etc. are attached on the file or off-limits door of need to be keep secret, because this kind of development method of technology can simply be destroyed on the most original method paper tape strip of paper used for sealing.Most of in addition e-seals adopts various radio-frequency techniques, use and be primarily aimed at some large piece articles, so cost is higher, and device is also bigger simultaneously.
Present e-seals adopts the RFID label, judges by coming between label and the tag reader whether object illegally broken a seal.In addition, counter the stealing that all basically e-seals all are based on logistics such as container is purpose, therefore is primarily aimed at the casing of firm external packing in the design.Can not be applied on the smallclothes product, as documents pouch, the secret monitoring of filing container etc.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of simple in structure, volume is little, cost is low, esy to use, safe and reliable e-seals is provided.
The present invention also provides a kind of control method of e-seals.
The present invention realizes by following technical scheme:
A kind of e-seals, it is characterized in that comprising first intermediate plate, second intermediate plate, system controller and alarm, the magnetosensitive switch and the permanent magnet element that also comprise a group or more be placed in first intermediate plate and second intermediate plate, the magnetosensitive switch links to each other with system controller, every group magnetosensitive switch is controlled by permanent magnet element on the same group, and alarm is controlled by system controller.
During the unlocking electronic strip of paper used for sealing, the state of magnetosensitive switch can change.If unnormal unlocking e-seals, system controller can send alerting signal to alarm when detecting the variation of magnetosensitive switch, thereby make alarm equipment alarm.
Further, every group of magnetosensitive switch and permanent magnet element comprise two magnetosensitive switches and a permanent magnet element, and when e-seals was in sealing state, the on off state of two magnetosensitive switches was opposite.
Further, also comprise the storer that links to each other with system controller.Further, described storer is flash or the EEPROM that data can be preserved after the power down.
Further, also comprise the resistance detector that links to each other with system controller, first intermediate plate is provided with two splicing ears, second intermediate plate be provided with first intermediate plate on corresponding two splicing ears of two splicing ears, connect first resistance between two splicing ears of second intermediate plate, two splicing ears on first intermediate plate link to each other with resistance detector.When e-seals was in sealing state, first resistance linked to each other with resistance detector, and during the unlocking electronic strip of paper used for sealing, first resistance can disconnect with resistance detector and being connected, and the detected resistance value of resistance detector can change.During the unnormal unlocking e-seals, when resistance detector detected resistance value and changes, system controller can send alerting signal to alarm, thereby makes alarm equipment alarm.
The magnetic induction part of described magnetosensitive switch for causing that to changes of magnetic field electric signal size break-make changes, preferred tongue tube or mistor element.
Described resistance detector can use the variation of the electric signal of AD analog acquisition resistance, thereby determines whether resistance changes; Also can adopt the RC oscillating circuit to produce pulsating wave, determine the size variation of resistance by the count cycle size.Described resistance detector preferably detects resistance by the mode of Huygens's electric bridge, promptly when two splicing ears of first intermediate plate were connected with two splicing ears of second intermediate plate respectively, other 3 resistance of described first resistance and resistance detector were formed Huygens's electric bridge.
Described alarm can be the onsite alarming device, as voice guard, light crossing-signal, optoacoustic associating alarm etc.; Described alarm also can be long-distance alarm apparatus, sends alerting signal to alarm center by wireless technology.Further, long-distance alarm apparatus comprises Wireless LAN module or GPRS module.The preferred 2.4G wireless module of Wireless LAN module.
A kind of control method of e-seals, described e-seals comprises first intermediate plate, second intermediate plate, system controller and alarm, the magnetosensitive switch and the permanent magnet element that also comprise a group or more be placed in first intermediate plate and second intermediate plate, the magnetosensitive switch links to each other with system controller, every group magnetosensitive switch is controlled by permanent magnet element on the same group, and alarm is controlled by system controller;
System controller judges by the state that detects the magnetosensitive switch whether e-seals is in intact sealing state, and when arbitrary magnetosensitive switch was in abnormality, the system controller output alarm signal was given alarm.
Further, described e-seals also comprises the resistance detector that links to each other with system controller, first intermediate plate is provided with two splicing ears, second intermediate plate be provided with first intermediate plate on corresponding two splicing ears of two splicing ears, connect first resistance between two splicing ears of second intermediate plate, two splicing ears on first intermediate plate link to each other with resistance detector; When resistance detector detects first resistance when unusual, the system controller output alarm signal is given alarm.
The present invention has following advantage with respect to prior art:
1, volume is little, can be with design of Controller in intermediate plate;
2, system can carry out remote alarms by GPRS, can monitor file in real time;
3, simple in structure, cost is low, and easily operation.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is the structural representation of embodiment 1.
Among the figure, 1: the first intermediate plate; 2: the second intermediate plates; 31～33: the permanent magnet element; 41～43,51～53: magnetic switch; 11,21: splicing ear; 6: the first resistance.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, e-seals is made up of magnetosensitive switch, permanent magnet element, system controller, alarm, resistance detector and storer.
As shown in Figure 2, e-seals comprises first intermediate plate 1 and second intermediate plate 2, comprises three groups of magnetosensitive switches and permanent magnet element; The magnetosensitive switch is arranged on first intermediate plate 1, and the permanent magnet element is arranged on second intermediate plate 2.Every group of magnetosensitive switch and permanent magnet element comprise two magnetosensitive switches and a permanent magnet element, the discharging of staggering of two magnetosensitive switches, and when e-seals was in sealing state, the on off state of two magnetosensitive switches was opposite. Magnetosensitive switch 41,51 and permanent magnet element 31 constitute one group, and magnetosensitive switch 42,52 and permanent magnet element 32 constitute one group, and magnetosensitive switch 43,53 and permanent magnet element 33 constitute one group.First intermediate plate 1 is provided with and is provided with corresponding two splicing ears 21 on two splicing ears, 11, the second intermediate plates 2.Two splicing ears 11 on first intermediate plate 1 link to each other with resistance detector, are connecting first resistance 6 between two splicing ears 21 on second intermediate plate 2.All magnetosensitive switches all link to each other with system controller.
In the present embodiment, alarm comprises onsite alarming part and remote alarms part, and remote alarms partly comprises the GPRS module.
In the present embodiment, resistance detector detects changes in resistance by Huygens's electric bridge mode.
In the present embodiment, system's control can also provide data to other application terminals by communication interface, and as PC, communication interface is described in this place, can adopt data line communication, perhaps adopts radio communication.
Present embodiment is reported to the police to the detection of the closed situation of resistance detector and magnetosensitive switch by system controller, and simultaneity factor can be provided with pattern by long-range GPRS module, can the unlocking electronic strip of paper used for sealing as reminding, close onsite alarming simultaneously.By (PC) is provided to external world interface, can directly carry out operating and setting to system controller according to programmed instruction.
The control method of this e-seals may further comprise the steps:
S1, system controller carry out initialization, and system initialization comprises: the monitoring state of system is done initialization, storage data initialization, alarm condition initialization;
S2, first intermediate plate 1 among Fig. 2 and second intermediate plate 2 aimed at magnetosensitive switches 41,42,43 and permanent magnet element 31,32,33 are parallel to be clipped on the both sides that the sealed documents bag of wanting seals;
S3,11,21 pairs of the splicing ears among Fig. 2 are connected, to be communicated with Huygens's electric bridge.
S4, fix two intermediate plates by screw or glue etc., system controller is by the break-make of identification magnetosensitive switch 41,42,43,51,52,53, and the variation of first resistance, judge whether e-seals is intact, and make corresponding warning.
During the unnormal unlocking e-seals, if 41,42, the 43 arbitrary disconnections of magnetosensitive switch or magnetosensitive switch 51,52,53 arbitrary closures all can be reported to the police; If it is unusual to detect first resistance, system produces warning equally.
S5, system controller with any exception record of e-seals in storer.
S6, can carry out data exchange operation by PC and communication interface, the reading and recording data, or do the corresponding setting instruction manipulation.
Above-mentioned embodiment is the preferred embodiments of the present invention; can not limit claim of the present invention; other any change or other equivalent substitute mode that does not deviate from technical scheme of the present invention and made is included within protection scope of the present invention.
Claims (8)
1. e-seals, comprise first intermediate plate, second intermediate plate, system controller and alarm, the magnetosensitive switch and the permanent magnet element that also comprise a group or more be placed in first intermediate plate and second intermediate plate, the magnetosensitive switch links to each other with system controller, every group magnetosensitive switch is controlled by permanent magnet element on the same group, and alarm is controlled by system controller;
It is characterized in that every group of magnetosensitive switch and permanent magnet element comprise two magnetosensitive switches and a permanent magnet element, when e-seals was in sealing state, the on off state of two magnetosensitive switches was opposite.
2. e-seals according to claim 1 is characterized in that: also comprise the storer that links to each other with system controller.
3. e-seals according to claim 2 is characterized in that: described storer is flash or the EEPROM that data can be preserved after the power down.
4. according to each described e-seals of claim 1 to 3, it is characterized in that also comprising the resistance detector that links to each other with system controller, first intermediate plate is provided with two splicing ears, second intermediate plate be provided with first intermediate plate on corresponding two splicing ears of two splicing ears, connect first resistance between two splicing ears of second intermediate plate, two splicing ears on first intermediate plate link to each other with resistance detector.
5. e-seals according to claim 4 is characterized in that described magnetosensitive switch is tongue tube or mistor element.
6. e-seals according to claim 4 is characterized in that: when two splicing ears of first intermediate plate were connected with two splicing ears of second intermediate plate respectively, other 3 resistance of described first resistance and resistance detector were formed Huygens's electric bridge.
7. according to each described e-seals of claim 1 to 3, it is characterized in that described alarm comprises Wireless LAN module or GPRS module.
8. the control method of an e-seals, it is characterized in that: described e-seals comprises first intermediate plate, second intermediate plate, system controller and alarm, the magnetosensitive switch and the permanent magnet element that also comprise a group or more be placed in first intermediate plate and second intermediate plate, the magnetosensitive switch links to each other with system controller, every group magnetosensitive switch is controlled by permanent magnet element on the same group, and alarm is controlled by system controller;
System controller judges by the state that detects the magnetosensitive switch whether e-seals is in intact sealing state, and when arbitrary magnetosensitive switch was in abnormality, the system controller output alarm signal was given alarm;
Described e-seals also comprises the resistance detector that links to each other with system controller, first intermediate plate is provided with two splicing ears, second intermediate plate be provided with first intermediate plate on corresponding two splicing ears of two splicing ears, connect first resistance between two splicing ears of second intermediate plate, two splicing ears on first intermediate plate link to each other with resistance detector; When resistance detector detects first resistance when unusual, the system controller output alarm signal is given alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100379040A CN101510379B (en) | 2009-03-13 | 2009-03-13 | Electronic seal and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100379040A CN101510379B (en) | 2009-03-13 | 2009-03-13 | Electronic seal and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101510379A CN101510379A (en) | 2009-08-19 |
| CN101510379B true CN101510379B (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100379040A Expired - Fee Related CN101510379B (en) | 2009-03-13 | 2009-03-13 | Electronic seal and control method thereof |
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| Country | Link |
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| CN (1) | CN101510379B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044193A (en) * | 2009-10-20 | 2011-05-04 | 成都昊芯科技有限公司 | Resistance type commodity unsealing circuit for electronic antifalsification label and unsealing detection method |
| CN111673657B (en) * | 2020-06-30 | 2021-07-30 | 广州百畅信息科技有限公司 | Component dismounting tool for replaced magnetic sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201397619Y (en) * | 2009-03-13 | 2010-02-03 | 林克武 | Electronic seal |
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2009
- 2009-03-13 CN CN2009100379040A patent/CN101510379B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201397619Y (en) * | 2009-03-13 | 2010-02-03 | 林克武 | Electronic seal |
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| CN101510379A (en) | 2009-08-19 |
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Granted publication date: 20101229 Termination date: 20140313 |