Multifunctional security system. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Multifunctional security system. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Security devices and object signaling

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The security scheme is built on a modular basis (Fig. 2.1), which makes it easy to assemble a security system that is most convenient for specific purposes - from protecting an apartment, a summer house to a car. At the same time, by assembling and connecting additional modules to the base unit, you can easily expand the functionality of the security system, for example, introduce automatic notification of neighbors or relatives over the telephone line, as well as a number of other useful functions.

Multifunctional security system
Rice. 2.1. Structural diagram of a modular security system

During the development, expensive or scarce parts were not used, which makes the schemes easily accessible for repetition by everyone, and the use of the modular construction principle simplified the individual components of the system.

All circuits are assembled on widely used MOS chips, which ensures minimal current consumption, operation in a wide range of supply voltages (4 ... 15 V) and high reliability. improves reliability and extends the operating temperature range.

2.1.1. Basic security unit

2.1.2. Sensor Scanner

2.1.3. Connecting a Remote Sensor

2.1.4. Coded pushbutton

2.1.5. Telephone line notification

Publication: cxem.net

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