CN204926377U

CN204926377U - Theftproof camera

Info

Publication number: CN204926377U
Application number: CN201520706446.6U
Authority: CN
Inventors: 李云星; 徐龙忠; 胡伟忠; 谢文成; 张惠栋
Original assignee: Hangzhou Lide Communication Co Ltd
Current assignee: Hangzhou Lide Communication Co Ltd
Priority date: 2015-09-12
Filing date: 2015-09-12
Publication date: 2015-12-30
Anticipated expiration: 2025-09-12

Abstract

The utility model discloses a theftproof camera, including casing, camera, video processing module, communication module, storage module and power module, characterized by, still include a theftproof reminder module, the theftproof reminder module include: human detecting element for detect the camera next door whether someone, and having a man -hour output human sensing signal, the vibration detection unit for detect the camera and whether take place the vibration, and sensing signal is vibrated in output no. 1 when the camera vibrates, the trigger element is in response to human sensing signal and vibration signal in order to export corresponding triggering signal, delay control unit exports corresponding control signal in response to triggering signal and after the time delay, the alarm unit sends alarm signal in response to control signal, and open and stop the unit, a switch has, open stop the unit be used for launching or close the theftproof reminder module, the switch mounting is on the casing. The utility model discloses can send alarm signal when stolen.

Description

A kind of anti-theft vidicon

Technical field

The utility model relates to a kind of video camera, and more particularly, it relates to a kind of anti-theft vidicon.

Background technology

Analog video camera is generally as a kind of watch-dog, is installed on some public arenas such as such as traffic surveillance and control system, floor, parking lot, to realize the real-time monitoring to scene.Along with the development of science and technology, the function of video camera also gets more and more, such as wireless transmission function, GPS positioning function etc., on the basis adding these functions, the price of video camera is also more and more expensive, therefore, the stolen case of video camera happens occasionally, and causing to corresponding entity and individual need not according to loss.Particularly in the dead of night, the most distraction of Security Personnel, lower to the control and monitoring at scene, provide chance to thief.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of anti-theft vidicon, can send alerting signal when stolen.

For achieving the above object, the utility model provides following technical scheme:

A kind of anti-theft vidicon, comprise casing, camera, video processing module, communication module, memory module and power module, also comprise an anti-theft prompt module, described anti-theft prompt module comprises: human detection unit, whether there is people for detecting video camera side, and export a human-induced signal when there being people; Whether vibration detecting unit, vibrate for detecting video camera, and export a vibration induction signal when camera vibration; Trigger element, in response to described human-induced signal and vibration signal to export corresponding trigger pip; Delays time to control unit, exports corresponding control signal in response to described trigger pip after time delay; Alarm unit, sends alerting signal in response to described control signal; And start and stop unit, have a switch, described start and stop unit is used for enabling or close described anti-theft prompt module, and described switch is installed on described casing.

Further, described human detection unit comprises human body sensor and the first amplifying circuit, and wherein, described first amplifies electricity for amplifying the human-induced signal of described human body sensor output.

Further, described vibration detecting unit involving vibrations sensor and the second amplifier, wherein, the vibration induction signal that the second amplifier exports for amplifying described vibration transducer.

Further, described trigger element comprises: an AND circuit, has two input ends and an output terminal, wherein, an input end of described AND circuit receives described human-induced signal, and another input end of described AND circuit receives described vibration induction signal; One phase inverter, have an input end and an output terminal, the input end of described phase inverter is coupled to the output terminal of described AND circuit.

Further, described delays time to control unit comprises: timer, has a trigger end and output terminal, and described timer trigger end receives described trigger pip, and described timer output end exports described control signal.

Further, described alarm unit comprises: one first resistance, and its one end is coupled to the output terminal of described timer, to receive described control signal; One NPN triode, its base stage is coupled to the other end of described first resistance, grounded emitter; One hummer, its negative pole is coupled to the collector of described NPN triode, and it is just coupling and is being coupled to a VCC voltage.

Further, described start and stop unit comprises a self-supporting switch, and described self-supporting switch connects with the current supply circuit of described timer.

Further, described video camera also comprises standby power supply.

Compared with prior art, the utility model has the advantages that: by above scheme, when there being people near video camera, human detection unit can sense the existence of people and export corresponding human-induced signal, when there is vibration in video camera, vibration detecting unit can export corresponding vibration induction signal, therefore, when trigger element receives two kinds of induced signals simultaneously, a trigger pip will be exported, Time delay control module exports a control signal, sends alerting signal to control alarm unit, reaches the object of reminding Security Personnel.Wherein, delays time to control unit needs the reason exporting control signal after time delay again, be in order to preventive maintenance personnel encounter video camera because of carelessness, cause trigger alarm, simultaneously, by arranging above-mentioned switch, maintenance personal can be started by switch or close warning function, thus maintenance personal is after encountering video camera because of carelessness, close warning function by switch, avoid unnecessary misunderstanding and trouble.

Accompanying drawing explanation

Fig. 1 is the one-piece construction schematic diagram of video camera in the utility model;

Fig. 2 is the circuit diagram of human detection unit, vibration detecting unit in the utility model, the circuit diagram of trigger element;

Fig. 3 is the circuit diagram of delays time to control unit in the utility model, alarm unit and start and stop unit.

Reference numeral: 1, casing, 2, camera, 3, self-supporting switch, 410, human detection unit, 420, vibration detecting unit, 430, trigger element, 431, AND circuit, 432, phase inverter, 500, delays time to control unit, 600, alarm unit, 700, start and stop unit.

Embodiment

Referring to figs. 1 through Fig. 3, embodiment of the present utility model is described further.

A kind of anti-theft vidicon, comprise casing 1, camera 2, video processing module, communication module, memory module and power module, also comprise an anti-theft prompt module, anti-theft prompt module comprises: human detection unit 410, whether there is people for detecting video camera side, and export a human-induced signal S1 when there being people; Whether vibration detecting unit 420, vibrate for detecting video camera, and export a vibration induction signal S2 when camera vibration; Trigger element 430, in response to human-induced signal S1 and vibration signal S2 to export corresponding trigger pip Sp; Delays time to control unit 500, exports corresponding control signal in response to trigger pip Sp after time delay; Alarm unit 600, sends alerting signal in response to control signal; And start and stop unit 700, have a switch, start and stop unit 700 is for enabling or close anti-theft prompt module, and switch is installed on casing 1.

In one embodiment, with reference to Fig. 2, human detection unit 410 comprises human body sensor PIR and the first amplifying circuit, wherein, first amplifies electricity for amplifying the human-induced signal of human body sensor PIR output, as we can see from the figure, the first amplifying circuit forms secondary by triode Q1 and operational amplifier A 2 and amplifies, the effective human-induced signal S1 of final output.

In one embodiment, with reference to Fig. 2, vibration detecting unit 420 involving vibrations sensor and the second amplifier, wherein, vibration transducer is magnetostatic structure, is made up of permanent magnet TE and inductive coil L, the vibration induction signal that the second amplifier exports for amplifying vibration transducer, as we can see from the figure, the second amplifying circuit is made up of operational amplifier A 1.The principle of vibration detecting unit 420 is, after vibration occurs, and permanent magnet TE vibration displacement, thus cause the magnetic flux in coil to change, in inductive coil, produce induced potential in L, and form vibration induction signal S2 after being amplified by the second amplifier.

In one embodiment, with reference to Fig. 2, trigger element 430 comprises AND circuit 431 and phase inverter 432, wherein, AND circuit 431 has two input ends and an output terminal, an input end of described AND circuit 431 receives described human-induced signal, and another input end of described AND circuit 431 receives described vibration induction signal; Phase inverter 432, has an input end and an output terminal, and the input end of described phase inverter 432 is coupled to the output terminal of described AND circuit 431.Therefore, when AND circuit 431 receives human-induced signal S1 and vibration induction signal S2 simultaneously, export high level signal, then after phase inverter 432 is anti-phase, form low level trigger pip Sp.

In one embodiment, with reference to Fig. 3, delays time to control unit 500 comprises timer, and this timer has a trigger end and output terminal, and wherein, trigger end receives trigger pip SpSp, and output terminal exports control signal Sc.As we can see from the figure, this timer is made up of one piece of 555 timing chip, wherein, 1 pin ground connection of 555 timing chips, 2 pin and 6 pin are by a resistance R7 ground connection, and 2 pin and 6 pin are also coupled to described VCC voltage by an electric capacity C4, and 4 pin and 8 pin are coupled to VCC voltage equally, 5 pin are by another electric capacity C5 ground connection, and 3 pin are as the output terminal of timer.Therefore, the principle of work of timer is, after 2 pin of 555 timing chips receive low level trigger pip SpSp, through time delay a period of time, exports the control signal Sc of high level from 3 pin.

In one embodiment, with reference to Fig. 3, alarm unit 600 comprises resistance R8, NPN triode Q2 and hummer.Wherein, one end of resistance R4 is coupled to the output terminal of timer, with reception control signal Sc; The base stage of NPN triode Q2 is coupled to the other end of resistance R8, grounded emitter; The negative pole of hummer is coupled to the collector of NPN triode Q2, and just coupling of hummer is coupled to VCC voltage.Therefore, the principle of work of alarm unit 600 is, when resistance R8 receives the control signal Sc of high level, NPN triode Q2 conducting, makes hummer obtain electric, send alerting signal

Further, with reference to Fig. 3, start and stop unit 700 comprises a self-supporting switch 3, and self-supporting switch 3 connects with the current supply circuit of timer, namely connects with the VCC voltage input circuit of 555 timing chips.Therefore, when self-supporting switch 3 is pressed, 555 timing chips obtain electric, enter duty, and when self-supporting switch 3 resets, 555 timing chip dead electricity, even if receive trigger pip SpSp, also can not export control signal Sc.So, maintenance personal just can when encountering video camera because of carelessness, by cancelling warning function by self-supporting switch 3.

Further, video camera also comprises standby power supply (not shown).By arranging this standby power supply, preventing thief from first cutting off the power supply of video camera, after making the dead electricity of video camera, causing anti-theft prompt module not work.Below be only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. an anti-theft vidicon, comprises casing, camera, video processing module, communication module, memory module and power module, it is characterized in that, also comprises an anti-theft prompt module, and described anti-theft prompt module comprises:

Whether human detection unit, have people for detecting video camera side, and export a human-induced signal when there being people;

Whether vibration detecting unit, vibrate for detecting video camera, and export a vibration induction signal when camera vibration;

Trigger element, in response to described human-induced signal and vibration signal to export corresponding trigger pip;

Delays time to control unit, exports corresponding control signal in response to described trigger pip after time delay;

Alarm unit, sends alerting signal in response to described control signal; And

Start and stop unit, has a switch, and described start and stop unit is used for enabling or close described anti-theft prompt module, and described switch is installed on described casing.

2. anti-theft vidicon according to claim 1, is characterized in that, described human detection unit comprises human body sensor and the first amplifying circuit, and wherein, described first amplifies electricity for amplifying the human-induced signal of described human body sensor output.

3. anti-theft vidicon according to claim 2, is characterized in that, described vibration detecting unit involving vibrations sensor and the second amplifier, wherein, and the vibration induction signal that the second amplifier exports for amplifying described vibration transducer.

4. anti-theft vidicon according to claim 3, is characterized in that, described trigger element comprises:

One AND circuit, has two input ends and an output terminal, and wherein, an input end of described AND circuit receives described human-induced signal, and another input end of described AND circuit receives described vibration induction signal;

One phase inverter, have an input end and an output terminal, the input end of described phase inverter is coupled to the output terminal of described AND circuit.

5. according to anti-theft vidicon according to claim 4, it is characterized in that, described delays time to control unit comprises:

Timer, has a trigger end and output terminal, and described timer trigger end receives described trigger pip, and described timer output end exports described control signal.

6. according to anti-theft vidicon according to claim 5, it is characterized in that, described alarm unit comprises:

One first resistance, its one end is coupled to the output terminal of described timer, to receive described control signal;

One NPN triode, its base stage is coupled to the other end of described first resistance, grounded emitter;

One hummer, its negative pole is coupled to the collector of described NPN triode, and it is just coupling and is being coupled to a VCC voltage.

7. according to anti-theft vidicon according to claim 6, it is characterized in that, described start and stop unit comprises a self-supporting switch, and described self-supporting switch connects with the current supply circuit of described timer.

8. according to anti-theft vidicon according to claim 1, it is characterized in that, described video camera also comprises standby power supply.