CN201111666Y - Inductive anti-theft doorbell - Google Patents

Abstract

The utility model discloses an inductive anti-theft doorbell, which comprises a vibration sensor installed on the door. The sensor signal line is connected to a delay, judgment and processing module, and a music doorbell and an alarm are arranged connected with the delay, judgment and processing module. , the alarm circuit connected to the delay, judgment and processing modules is also equipped with a telephone trigger circuit. The utility model is equipped with a telephone trigger circuit on the alarm circuit at the same time. If the module processor judges that the door is still vibrated after the set time, the alarm will be started to scare away the thief and the fixed phone at home will be started to call the owner. You can hear the sound of prying doors and alarms to judge whether it has been stolen.

Description

Inductive anti-theft doorbell

technical field

The utility model relates to an induction type anti-theft doorbell.

Background technique

Most of the traditional doorbells are push-button doorbells, and the inductive doorbells have used a single infrared sensor, which cannot detect some theft techniques such as prying the door and unlocking the lock well, so it cannot play the role of anti-theft. Chinese patent ZL89209299.8 discloses a kind of household earthquake, anti-theft alarm doorbell, which can predict earthquakes, can also be used as doorbell, and can only send alarm sounds when playing the anti-theft effect.

Contents of the invention

The purpose of the utility model is to provide a novel inductive anti-theft doorbell.

In order to achieve the above object, the utility model adopts the following technical scheme: an inductive anti-theft doorbell, including a vibration sensor installed on the door, a sensor signal line connected to a delay, judgment, and processing module, and a delay, judgment, and processing module A music doorbell and an alarm are connected to each other, and a telephone trigger circuit is simultaneously provided on the alarm circuit connected to the delay, judgment and processing modules.

The vibration sensor is located at the door lock, and the alarm delay time of the delay, judgment and processing module is 2 to 5 minutes.

The utility model is equipped with a telephone trigger circuit on the alarm circuit at the same time. If the module processor judges that the door is still vibrated after the set time, the alarm will be activated to scare away the thief and the fixed phone at home will be activated to call the owner. You can hear the sound of prying doors and alarms to judge whether it has been stolen.

Description of drawings

Accompanying drawing shows is the circuit principle connection block diagram of the utility model.

Detailed ways

As shown in the figure, the utility model includes a vibration sensor 1 installed at the keyhole of the door 2, and the sensor signal line is connected to a delay, judgment, and processing module 3, and the alarm delay time of the delay, judgment, and processing module 3 is 2 ~5 minutes. A music doorbell 5 and an alarm 6 are connected to the delay, judgment and processing module 3, and a telephone trigger circuit 4 is provided on the circuit of the alarm 6 connected to the delay, judgment and processing module 3.

According to national standards, the anti-theft door standard requires that the time to be opened is not less than 15 minutes. When a friend comes to visit, the vibration generated by knocking on the door is monitored by the vibration sensor 1, and the vibration sensor 1 transmits the signal to the delay, judgment, and processing module 3, and the delay, judgment, and processing module 3 drives the music doorbell 5, which rings to remind the owner There are visitors. The unlocking time of the owner is within about 10 seconds. If the module processor 3 judges that the door is still vibrated after exceeding the set time according to the alarm delay time of 2 to 5 minutes, then start the siren 6 to scare away the thief and start the fixed phone at home to give the owner Make a phone call, and the owner can hear the sound of prying the door and the sound of an alarm to judge whether it has been stolen.

Claims (2)

1. An inductive anti-theft doorbell, including a vibration sensor installed on the door, the sensor signal line is connected to a delay, judgment, and processing module, and a music doorbell and an alarm are connected to the delay, judgment, and processing modules. In that: the alarm circuit connected to the delay, judgment and processing modules is also equipped with a telephone trigger circuit. 2. The inductive anti-theft doorbell according to claim 1, wherein the vibration sensor is located at the door lock, and the alarm delay time of the delay, judgment and processing module is 2 to 5 minutes.

Images