Police guard post
A sentry box and alarm technology, which is applied to alarms that interfere with short-wavelength radiation, can solve problems such as not being allowed to sleep, and achieve the effect of reducing fatigue
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[0007] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0008] Referring to the accompanying drawings, an alarm sentry box is characterized in that an infrared detection device 2 is installed at the bottom of the sentry box body 1, and the infrared detection device 2 is connected to the alarm device 3 inside the sentry box body 1.
[0009] The working principle of the present invention is: during the day, the infrared detection device 2 is turned off and does not work, and after no one enters and exits the community at night, the infrared detection device 2 is turned on. When someone enters, the infrared detection device 2 drives the alarm 3 to alarm, and the alarm 3 is installed. Inside the sentry box body 1, the alarm is intended to only remind people inside the sentry box, without disturbing the rest of the community.
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