KR20090012904U - window alarm - Google Patents

Abstract

The present invention relates to a security window alarm, and is equipped with a magnet sensor and a vibration sensor at the same time to further enhance the security. The window alarm according to the present invention is also useful because it can detect the impact on the window and the window opening with a relatively low impact.

Burglar alarm, anti-theft

Description

Window alarm {window alarm}

Electronics

Magnetic sensor (lead switch, hall sensor, micro switch), vibration sensor (mechanical contact, piezoelectric, inductive current type)

 Alarms with only magnetic sensors are not detected when breaking through the window glass, and alarms with only vibration sensors (shock sensors) have a small vibration when the intruder intrudes further by opening the window. I can't detect it. Of course, it is possible to detect by increasing the sensitivity of the alarm, but in that case, it will be difficult to malfunction due to the frequent occurrence of the alarm even in the daily vibration around. The present invention seeks to solve this problem.

By providing both magnetic sensor and vibration sensor at the same time, it provides the enhanced security function by compensating for each disadvantage.

Compared with existing products, it is economical and easy to install and provides enhanced security function.

Existing products expose security vulnerabilities by providing only one function. To compensate for this, additional alarms with other sensors need to be installed, which is expensive and difficult to install. The present invention is equipped with a magnetic sensor (Fig. 1-1) and a vibration sensor (Fig. 1-3) in order to improve the advantages, and in the case of the most common double-door sliding window, the alarm is seen at the border of the middle part of the window where both windows overlap. If you install it and attach a magnet to the right side of the window (viewed in the room) and the position of the magnet sensor when it is open enough for human to pass through, the intruder can be detected even when the window is partially open. If an intruder tries to break into the room by opening some open windows or opposite windows, the magnets and magnetic sensors fall off and an alarm is triggered. This can be useful if you need to sleep with the windows open during the hot summer months. If the window is locked by the locking device, the window must be unlocked by shaking the window, or the window must be lifted up or the window is broken. Therefore, a strong vibration occurs and the vibration sensor detects the alarm. The window alarm according to the present invention can detect the impact or the opening of both windows even if only one is installed, and the intruder can be detected even when the windows are partially open, so it is more effective and economical than the products with only one sensor.

1 is a control block diagram of the present invention.

Claims (1)

Window alarm equipped with vibration sensor and magnet sensor

Images