Internet-of-things control dense cabinet alarm detection circuit and control method thereof

Abstract

The invention discloses an Internet-of-Things control dense cabinet alarm detection circuit and a control method thereof. The circuit comprises a power supply protection module, an Internet of Thingsinstruction control module, a gravity sensing module, an infrared sensing module and a dense cabinet, and a transistor M1 and a transistor M2 in the power supply protection module are internally provided with direction diodes to protect the safety of power supply voltage; a variable resistor RV1 in the Internet of Things instruction control module adjusts the transmission size of stored electric energy provided for a capacitor C7, so that the voltage of a transmission control circuit is constant; a resistor R12 and a capacitor C19 in the gravity sensing module are connected in parallel to forma filter circuit, so that the response of the operational amplifier U4 is improved; a one-way silicon controlled rectifier U10 in the infrared induction module enables the alarm device to respond quickly by acquiring a detection signal instruction. The compact cabinet comprises a cabinet body, a gravity sensing plate arranged in the cabinet body, an infrared sensor arranged above the gravity sensing plate and a PCB arranged below the cabinet body, and then files in the compact cabinet are protected.

Description

technical field [0001] The invention relates to the technical field of detection and alarm, in particular to an alarm detection circuit and a control method for a dense cabinet controlled by the Internet of Things. Background technique [0002] The detection alarm is to detect the moving objects within the detection range, and an alarm prompt will be issued if the parameter value exceeds the internal setting, which is used to remind and alert the operator that there is an abnormality in the range, so as to deal with it in time; and the purpose of the dense cabinet It is not only limited to the storage of archives, but is more used in courts, procuratorates, public security organs, large shopping malls, schools, enterprises and other places where archives are stored. It is necessary to ensure the storage of important materials when they are kept confidential. The security, and then put forward higher requirements for the alarm control of dense cabinets. [0003] Existing den...

AI Technical Summary

Problems solved by technology

[0003] Existing dense cabinets use multi-layer storage of document materials, and it is impossible to distinguish the correct position of the materials when picking them up, resulting in the loss of important materials; when searching for the required materials, it is impossible to find them accurately The location of the required materials, which in turn causes a waste of time; and in some intelligent dense cabinets, AC power supply is used, and this method will interfere with the detection of control signals when the dense cabinets are intelligently networked and controlled, which will reduce the accuracy of the detection equipment; However, when the important materials in the dense cabinet are stolen, it is impossible to respond quickly and in time, resulting in the loss of materials

Images