CN204990560U - Alarm that balcony window was entered room is crossed in strick precaution based on wiFi communication - Google Patents

Abstract

The utility model discloses an alarm device based on WiFi communication for preventing room entry from climbing over a balcony window, which comprises a first sensing unit used for sensing the direction of movement of people, and used for sensing the activity of indoor people inside the sensing area of the first sensing unit. The second sensing unit, the controller judging the intrusion status according to the sensing situation of the first sensing unit and the second sensing unit, the alarm circuit controlled by the controller and the WiFi module for remotely transmitting the alarm signal, which can not only effectively It can accurately distinguish between intrusion and normal activities of indoor personnel, does not need to disarm and arm, has a low false alarm rate, and can realize remote alarm.

Description

An alarm that prevents entry from over balcony windows based on WiFi communication

technical field

The utility model relates to the field of anti-theft alarms, in particular to an alarm device based on WiFi communication for preventing room entry from climbing over balconies/windows.

Background technique

There are many anti-intrusion devices on the market today, which are based on infrared detection technology. The beam detector and curtain detector based on infrared detection technology are the most widely used front-end detection devices of the anti-intrusion system. The principle of the through-beam detector is: the light emitter emits pulsed infrared rays, which are received by the light receiver after being focused by the optical mirror. When the infrared pulse beam is blocked or the light receiver cannot receive infrared rays, the alarm host will control the alarm. The principle of the curtain detector is: the infrared ray emitted by the human body is refracted by the curtain Fresnel lens group, and when it is received by the pyroelectric sensor element, the alarm host controls the alarm.

Thieves often use windows or balconies to burglary. When installing through-beam detectors and curtain detectors on balconies or windows, due to the frequent opening and closing of windows, through-beam detectors and curtain detectors cannot distinguish indoor Alarms triggered by personnel during normal activities require frequent arming and disarming of the system using remote controls or keyboards. If you forget to disarm when the system is armed, it may trigger a large number of false alarms; if you forget to arm the system when it is disarmed, it may be illegally sneaked into or broken into by illegal personnel, which greatly reduces the practicality and popularity. And existing part anti-theft alarm it only realizes local alarm, realizes local alarm by sound alarm, light alarm, when someone is at home or when there is someone near the anti-theft alarm, it can play a role, if there is no one at home or the anti-theft alarm When no one is nearby, the alarm function is lost. Another part of the existing anti-theft alarms can transmit the alarm signal to the alarm host, and the alarm host can realize the remote transmission of the alarm signal, which increases the difficulty and cost of system construction and is not conducive to popularization.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides an alarm device based on WiFi communication to prevent the balcony/window from entering the room. It can not only effectively distinguish the intrusion from the normal activities of indoor personnel, but also does not need disarming and arming, and the false alarm rate is low. And it can realize remote alarm, which is convenient for maintenance and popularization.

The technical solution adopted by the utility model to solve the above problems is:

An alarm based on WiFi communication to prevent entry from over balcony windows, including a first sensing unit for sensing the direction of movement of people, a second sensing unit for sensing indoor human activities inside the sensing area of the first sensing unit, according to The sensing situation of the first sensing unit and the second sensing unit is a controller for judging the intrusion status, an alarm circuit controlled by the controller, and a WiFi module for remotely transmitting alarm signals. The utility model has made two improvements on the basis of the prior art, one: use the first sensing unit and the second sensing unit to sense the illegal intrusion of indoor personnel and outdoor personnel, and reduce the time triggered by the normal activities of indoor personnel; False alarm; second, add a WiFi module on the controller, and use the WiFi module to realize the remote transmission of the alarm signal, so as to avoid the loss of the alarm function when there is no one in the room or no one near the anti-theft alarm. The sensing area of the second sensing unit of the present invention is the protected area, that is, the area inside the balcony/window, and the sensing area of the first sensing unit is the part outside the second sensing unit, directly in contact with the non-protected area. When a thief climbs over the balcony/window and enters the room, the first sensing unit senses that he is moving from the non-protected area to the protected area, and the controller judges that it is an illegal intrusion, and the controller controls the alarm circuit to realize the intrusion alarm. When the indoor personnel are in normal activities, the movement direction of the personnel is from the protected area to the non-protected area or when they stay in the buffer zone, they are first sensed by the second sensing unit, and the controller judges that it is based on the information of the second sensing unit. During the normal activities of the personnel, the controller temporarily disconnects the alarm circuit. At this time, no matter whether the personnel continue to open the window or do other actions and are sensed by the first sensing unit, the alarm circuit will not alarm until the personnel walk out of the second sensing unit. Sensing area, that is to restore the normal operation of the alarm circuit. Adopting the anti-intrusion alarm device of the present utility model, it can effectively distinguish between intrusion behavior and normal activities of indoor personnel, and avoid false alarms triggered by normal activities of indoor personnel; 24-hour arming, easy to promote and use.

Preferably, the alarm circuit is a local alarm circuit. The utility model integrates local alarm and remote alarm, the alarm circuit realizes local alarm, the WiFi module realizes remote transmission of alarm signal, realizes the connection with households’ handheld terminal, community property supervision system, public security system and other equipment, and realizes multi-faceted Remote monitoring for increased security.

Preferably, the second sensing unit is a wide-angle sensing unit. The wide-angle sensing unit is used to sense the activities of people in a certain area in the first sensing unit. The monitoring angle is large. It takes a certain time for people to trigger the second sensing unit until the first sensing unit is triggered, which can increase the judgment of the controller. Time, disconnect the alarm circuit in time to reduce misjudgment.

Further, in order to reduce false positives under special circumstances, the sensing angle of the second sensing unit is 14°-20°. The second sensing unit is used to sense the activities of people in the room. However, if it is installed on the windows/balconies of bedrooms, living rooms, etc., if the monitoring angle is too large, when people are sleeping, they will also detect people in the room, and the alarm circuit will always be activated. In the non-working state, it is very easy to produce false positives, especially at night.

Preferably, the first sensing unit is a curtain-type sensing unit. The curtain-type sensing unit has a small sensing area, is not easily affected by other factors, and has high judgment accuracy.

Further, the first sensing unit is a direction curtain detector.

In summary, the beneficial effects of the utility model are:

1. The alarm device of the present invention can effectively distinguish between intrusion and normal activities of indoor personnel, without disarming and arming, and has a low false alarm rate.

2. The alarm of the utility model adds a WiFi module to the controller, and uses the WiFi module to realize the remote transmission of the alarm signal, so as to avoid the loss of the alarm function when there is no one in the room or no one near the anti-theft alarm, which is convenient for maintenance and popularization.

Description of drawings

Fig. 1 is a structural block diagram of the utility model.

Fig. 2 is a top view of the distribution of sensing areas of the first sensing unit and the second sensing unit of the present invention.

Fig. 3 is a side view of the distribution of sensing areas of the first sensing unit and the second sensing unit of the present invention.

Wherein, the labels in the figure are: 1. the sensing area of the first sensing unit; 2. the sensing area of the second sensing unit; 3. the balcony boundary or window area.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1:

As shown in Figure 1, the alarm device based on WiFi communication for preventing entry by climbing over the balcony window includes a first sensing unit for sensing the direction of movement of people, and a sensor for sensing the movement of indoor people inside the sensing area of the first sensing unit. The second sensing unit, the controller judging the intrusion status according to the sensing situation of the first sensing unit and the second sensing unit, the alarm circuit controlled by the controller and the WiFi module for remotely transmitting the alarm signal.

In the utility model, the sensing area of the first sensing unit is the monitoring area, and the sensing area of the second sensing unit is the buffer zone, so as to realize the judgment of the normal activities of the indoor personnel and reduce the false alarm rate of the alarm.

The first sensing unit and the second sensing unit of the utility model can use technologies such as infrared, microwave, laser, video detection, smoke sensing, temperature sensing, light sensing, wind sensing, and air quality detection or a combination of multiple detection technologies. When a thief climbs over the balcony/window and enters the room, the first sensing unit senses that he is moving from the non-protected area to the protected area, and the controller judges that it is an illegal intrusion, and the controller controls the alarm circuit to realize the intrusion alarm. When the people in the room are in normal activities, the movement direction of the people is from the protected area to the non-protected area or when they stay in the buffer zone, they are first sensed by the second sensing unit, and the controller judges the behavior according to the information of the second sensing unit For the normal activities of personnel, the controller temporarily disconnects the alarm circuit. At this time, no matter whether the personnel continue to open the window or do other actions and are sensed by the first sensing unit, the alarm circuit will not alarm until the personnel walk out of the second sensing unit The sensing area, that is to restore the normal operation of the alarm circuit. Adopting the device of the utility model, it can effectively distinguish between intrusion behavior and normal activities of indoor personnel, avoid false alarms triggered by normal activities of indoor personnel, do not need disarming and arming, so as to realize 24-hour arming, and is easy to popularize and use. When the controller judges that there is an illegal intrusion, it sends an alarm signal to the WiFi module, and the WiFi module realizes the connection with the handheld terminal, the residential property supervision system, the public security system and other equipment to realize remote alarm. The alarm circuit is a local alarm circuit, which can use sound alarm, light alarm, sound and light alarm or other alarm equipment to realize local alarm.

Example 2:

As shown in FIG. 1 , this embodiment is optimized on the basis of the above embodiments, that is, when sensing people, the infrared technology is specifically used. The first sensing unit adopts a curtain type sensing unit, and its sensing area 1 is a curtain type; the second sensing unit adopts a wide-angle sensing unit, and its sensing area 2 is a monitoring area with a certain angle and forms a certain angle with the first sensing unit , to form a buffer. As shown in Figures 2 and 3, the distribution diagrams of the sensing areas of the first sensing unit and the second sensing unit, the first sensing unit detects the moving direction of the person, and the direction curtain detector is preferred, and its sensing area is small. It can reduce misjudgment and avoid interference from outdoor objects. The direction curtain detector is based on the infrared principle, combined with the infrared sensing element and the corresponding curtain Fresnel lens, it can sense the personnel and identify the direction of the personnel passing through the "curtain", and its structure is simple. In the prior art, two sensors are used to identify the moving direction of the person through the order in which the two sensors perceive the person successively. It not only has a wide sensing area, but is also easily interfered by people or objects in other areas, and has a complex structure. The process is complicated, and misjudgment is prone to occur; the directional curtain detector not only has a simple structure, but also has high discrimination accuracy, which is beneficial to reduce the misjudgment rate of the device.

In general, the anti-intrusion alarm of the present utility model is installed on the wall above the window or at the balcony boundary. After installation, the sensing area of the first sensing unit is perpendicular to the ground, forming an invisible protective curtain to the window or balcony 3, and the detection area of the second sensing unit forms an included angle with the protective curtain, at a certain distance from the protective curtain to the room. A buffer zone is formed within the range. The first sensing unit is only triggered when a person climbs over a balcony or a window, and the false positive rate is low.

Example 3:

As shown in FIG. 1 to FIG. 3 , this embodiment discloses a specific implementation manner based on the above embodiments, that is, preferably, the sensing angle of the second sensing unit is selected between 14°-20°. Preferably, the second sensing unit still uses infrared technology, which can be composed of an infrared sensing unit and a corresponding wide-angle Fresnel lens, and the angle of the wide-angle Fresnel lens is set at 14°-20°, and is installed on the wall above the window or When it is at the boundary of the balcony, it sets the space with a horizontal distance of about 1 meter inside the first sensing unit as a buffer zone, avoiding setting rest areas such as sofas and beds in the sensing area of the second sensing unit, and preventing people False reporting phenomenon, to avoid the underreporting situation. The sensing angle of the second sensing unit is determined according to the height of the floor and the layout in the room.

As mentioned above, the utility model can be better realized.

Claims (6)

1. The alarm device based on WiFi communication for preventing entry from overturning balcony windows, is characterized in that: it includes a first sensing unit for sensing the direction of movement of people, and a device for sensing the indoor movement of people inside the sensing area of the first sensing unit. The second sensing unit, the controller judging the intrusion status according to the sensing situation of the first sensing unit and the second sensing unit, the alarm circuit controlled by the controller and the WiFi module for remotely transmitting the alarm signal. 2 . The WiFi communication-based alarm for preventing room entry by climbing over balcony windows according to claim 1 , wherein the alarm circuit is a local alarm circuit. 3 . 3 . The WiFi communication-based alarm for preventing room entry by climbing over the balcony window according to claim 1 , wherein the second sensing unit is a wide-angle sensing unit. 4 . 4. The WiFi communication-based alarm for preventing room entry by climbing over the balcony window according to claim 3, characterized in that: the sensing angle of the second sensing unit is 14°-20°. 5 . The WiFi communication-based alarm for preventing room entry by climbing over a balcony window according to claim 1 , wherein the first sensing unit is a curtain-type sensing unit. 5 . 6 . The WiFi communication-based alarm for preventing room entry by climbing over the balcony window according to claim 5 , wherein the first sensing unit is a direction curtain detector. 7 .