CN210112159U

CN210112159U - Security monitoring device

Info

Publication number: CN210112159U
Application number: CN201921459262.9U
Authority: CN
Inventors: 李苗; 冉朋超
Original assignee: Beijing Central Metallurgy And Kun Tian Crown Engineering Technology Co Ltd
Current assignee: Beijing Central Metallurgy And Kun Tian Crown Engineering Technology Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-02-21
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a security protection monitoring device relates to the technical field of security protection, and it includes camera and computer, including being used for detecting whether there is human detection alarm device to the region detection that the camera was shot night, when someone was located the region that the camera was shot at night, detection alarm device reported to the police and suggests. The utility model discloses in the control, can also detect the region that the camera was shot, when someone appears in this should unmanned region night, can report to the police the suggestion.

Description

Security monitoring device

Technical Field

The utility model belongs to the technical field of the technique of security protection and specifically relates to a security protection monitoring device is related to.

Background

A typical monitoring system includes a camera and a computer. The image shot by the camera is transmitted to the computer and displayed on a display screen of the computer, and the computer stores the image in the hard disk.

Although the monitoring system in the prior art can make people know the condition of the monitored area in real time and can look back, the monitoring system only plays a role in monitoring and recording. When people go to sleep at night, people can go to the monitoring area without people and do illegal activities at night, the people can not be aware of the activities, and clues can only be found by calling the monitoring video after the situation is found on the next day.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a security protection monitoring device, it is in the control, can also detect the region that the camera was shot, when someone appears in this should unmanned region night, can report to the police the suggestion.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a security protection monitoring device, includes camera and computer, including being used for detecting whether there is human detection alarm device to the region that the camera was shot night, when someone was located the region that the camera was shot night, detection alarm device reported to the police the suggestion.

Through adopting above-mentioned technical scheme, when the camera carries out surveillance video, detect alarm device and detect the region that the camera was shot, when someone was in the region that the camera was shot, detect alarm device and report to the police and indicate, can realize oneself after being located the sound of the people's bee calling organ in the shooting region and have been found to reduce the emergence probability of case.

The utility model discloses further set up to: the detection alarm device is fixedly connected with the camera.

By adopting the technical scheme, the detection area of the detection alarm device can move along with the movement of the camera, and when the camera needs to monitor other areas, the detection area of the detection alarm device does not need to be adjusted.

The utility model discloses further set up to: the detection alarm device comprises a shell, a detection element and a buzzer, wherein the detection element and the buzzer are arranged in the shell; the detection element is used for detecting whether a human body exists in an area shot by the camera so as to send a detection signal, a switch circuit is coupled between the detection element and the buzzer, and the switch circuit responds to the detection signal so as to control whether the buzzer sounds; when a person is in the area shot by the camera, the buzzer sounds to give an alarm; the detection element is coupled with a trigger circuit, the trigger circuit is provided with a preset value, and when the illumination intensity of the monitored area is lower than the preset value, the trigger circuit supplies power to the detection element so as to enable the detection element to work; when the illumination intensity of the monitored area is higher than the preset value, the trigger circuit cuts off the power of the detection element.

Through adopting above-mentioned technical scheme, when the illumination intensity at night is less than the default, trigger circuit makes detecting element work for detecting element power supply, when detecting element detected someone in the region that the camera was shot, buzzer electricity was got and is reported to the police when detecting element sent passed through switch circuit.

The utility model discloses further set up to: the trigger circuit comprises a photoresistor RG and a reference resistor which are connected in series, wherein the other end of the reference resistor is connected with a power supply VCC, and the other end of the photoresistor RG is grounded; the detection circuit comprises an NPN type triode Q1, the base electrode of the triode Q1 is connected with the connection point of a photosensitive resistor and a reference resistor, the emitting electrode of the triode Q1 is coupled with a detection element, the collecting electrode of the triode Q1 is connected with a resistor R1, and the other end of the resistor R1 is connected with a power supply VCC.

Through adopting above-mentioned technical scheme, the different of illumination intensity will influence the resistance of photo resistance, and then influences whether triode Q1 switches on, and then decides whether detecting element can get electric work.

The utility model discloses further set up to: the detection element is a pyroelectric sensor with the model number of RDA 223.

By adopting the technical scheme, the detection signal sent by the detection element is a TTL signal.

The utility model discloses further set up to: the switching circuit comprises an NPN type triode Q2, the base electrode of the triode Q2 is coupled with the output end of the detection element, the emitting electrode of the triode Q2 is coupled with the buzzer, the collector electrode of the triode Q2 is connected with a resistor R2, and the other end of the resistor R2 is connected with a power supply VCC.

By adopting the technical scheme, when the detection element detects that a person exists, and the detection signal is at a high level, the triode Q2 is conducted to enable the buzzer to be electrified and sound; when the detecting element does not detect a person, the detecting signal is low level, and the triode Q2 is not conducted, so that the buzzer is not powered.

The utility model discloses further set up to: the reference resistance is a sliding rheostat RP.

By adopting the technical scheme, the preset value of the trigger circuit can be adjusted by changing the resistance value of the reference resistor.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the camera carries out surveillance video recording, the detection alarm device detects the area shot by the camera, when people are in the area shot by the camera, the detection alarm device carries out alarm prompt, and people who are in the shooting area can realize that the people are found after the sound of a buzzer, so that the occurrence probability of cases is reduced

2. The detection area of the detection alarm device can move along with the movement of the camera, and when the camera needs to monitor other areas, the detection area of the detection alarm device does not need to be adjusted.

Drawings

FIG. 1 is a schematic structural diagram of a security monitoring device;

FIG. 2 is a schematic view of the detection alarm device;

fig. 3 is a schematic circuit diagram of a detection alarm device.

In the figure, 1, a camera; 2. detecting an alarm device; 21. a housing; 211. a first groove; 212. a second groove; 22. a detection element; 23. a trigger circuit; 231. a photoresistor; 24. a buzzer; 25. a switching circuit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses a security protection monitoring device, see fig. 1 to fig. 3, including computer, camera 1 to and detect alarm device 2. The camera 1 is coupled to a computer and displays an image shot by the camera 1 on a display of the computer, and the computer stores the influence shot by the camera 1. The detecting alarm device 2 is used for detecting whether a human body is present at night and can give an alarm when a human body is detected, and includes a housing, a detecting element 22, a buzzer 24, and a photo resistor 231.

The shell comprises a shell body 21 which is buckled up and down and is in mirror symmetry, and a first groove 211 and a second groove 212 are formed in the shell body 21. After the two shells 21 are fastened, the two first grooves 211 form a first mounting groove for limiting the detection element 22; the two second grooves 212 form a second groove 212 for placing the photoresistor 231, and the photoresistor 231 is adhered in the second groove 212; an inner cavity is formed between the two housings 21, and a buzzer 24 is mounted in the inner cavity.

The sensing element 22 is a pyroelectric sensor, model RDA 223. The detection element 22 is clamped in the first mounting groove, and the detection element 22 is used for detecting the area shot by the camera 1. The shell can be fixedly connected with the camera 1 by gluing or winding a binding band. When the camera 1 moves, the detection device moves along with the camera 1, so that the detection area of the detection device is always consistent with the area shot by the camera 1.

A trigger circuit 23 is coupled to the detecting element 22, the trigger circuit 23 is provided with a preset value, and the trigger circuit 23 supplies power to the detecting element 22 to operate the detecting element 22 when the illumination intensity of the environment is lower than the preset value. The trigger circuit 23 includes a reference resistor connected in series with the photo resistor 231RG, and further includes an NPN transistor Q1, the transistor Q1 being of type 9013. The other terminal of the reference resistor is connected to the power source VCC, and the other terminal of the photo resistor 231RG is connected to ground. The base of the transistor Q1 is connected to the reference resistor and the connecting resistor 231 RG; the emitter of transistor Q1 is coupled to sensing element 22; the collector of the triode Q1 is connected with a resistor R1, and the other end of the resistor R1 is connected with a power supply VCC.

The difference in illumination intensity will affect the resistance of the photo resistor 231RG, and then the potential between the photo resistor 231RG and the reference resistor, and then whether the transistor Q1 is turned on or not. The conduction or non-conduction of transistor Q1 determines whether sensing element 22 is capable of powered operation.

The reference resistor is a sliding rheostat, and the potential value of the connection electric connection between the reference resistor and the photosensitive resistor 231RG under different illumination intensities can be changed by changing the resistance value of the sliding rheostat, so that the preset value of the trigger circuit 23 can be changed.

A switching circuit 25 is coupled to the output of the detection element 22. The switching circuit 25 includes an NPN transistor Q2, the transistor Q2 being of type 9013. The base of the transistor Q2 is coupled to the output terminal of the detecting element 22; the emitter of the triode Q2 is coupled with the positive pole of the buzzer 24, and the negative pole of the buzzer 24 is grounded; the collector of the triode Q2 is connected with a resistor R2, and the other end of the resistor R2 is connected with a power supply VCC. When the detecting element 22 detects a person, the detecting element 22 outputs a high level, and the transistor Q2 is turned on to energize the buzzer 24. When the detecting element 22 detects no person, the detecting signal is low, and the transistor Q2 is not conducted to make the buzzer 24 not powered.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a security protection monitoring device, includes camera (1) and computer, its characterized in that: the night vision monitoring system comprises a detection alarm device (2) for detecting whether a human body exists in an area shot by a camera (1) at night, and when a person is located in the area shot by the camera (1) at night, the detection alarm device (2) gives an alarm.

2. The security monitoring device of claim 1, wherein: the detection alarm device (2) is fixedly connected with the camera (1).

3. The security monitoring device of claim 2, wherein: the detection alarm device (2) comprises a shell, a detection element (22) and a buzzer (24), wherein the detection element is arranged in the shell;

the detection element (22) is used for detecting whether a human body exists in an area shot by the camera (1) or not to send a detection signal, a switch circuit (25) is coupled between the detection element (22) and the buzzer (24), and the switch circuit (25) responds to the detection signal to control whether the buzzer (24) sounds or not; when a person is in the area shot by the camera (1) by the detection element (22), the buzzer (24) sounds to give an alarm;

the detection element (22) is coupled with a trigger circuit (23), the trigger circuit (23) is provided with a preset value, and when the illumination intensity of the monitored area is lower than the preset value, the trigger circuit (23) supplies power to the detection element (22) so as to enable the detection element (22) to work; when the illumination intensity of the monitored area is higher than a preset value, the trigger circuit (23) cuts off the power of the detection element (22).

4. The security monitoring device of claim 3, wherein: the trigger circuit (23) comprises a photoresistor (231) RG and a reference resistor which are connected in series, the other end of the reference resistor is connected with a power supply VCC, and the other end of the photoresistor (231) RG is grounded; the detection circuit comprises an NPN type triode Q1, wherein the base electrode of the triode Q1 is connected with the connection point of a photosensitive resistor (231) and a reference resistor, the emitting electrode of the triode Q1 is coupled with a detection element (22), the collecting electrode of the triode Q1 is connected with a resistor R1, and the other end of the resistor R1 is connected with a power supply VCC.

5. The security monitoring device of claim 4, wherein: the detection element (22) is a pyroelectric sensor, and the model is RDA 223.

6. The security monitoring device of claim 5, wherein: the switching circuit (25) comprises an NPN type triode Q2, the base electrode of the triode Q2 is coupled with the output end of the detection element (22), the emitting electrode of the triode Q2 is coupled with the buzzer (24), the collector electrode of the triode Q2 is connected with a resistor R2, and the other end of the resistor R2 is connected with a power supply VCC.

7. The security monitoring device of claim 4, wherein: the reference resistance is a sliding rheostat RP.