CN202495130U - Dormitory alarm system against fire and theft - Google Patents

Abstract

The utility model relates to an electronic alarm system, in particular to a dormitory fire prevention and anti-theft alarm system, which includes a host and at least two extension alarm systems, the host is installed in the dormitory administrator's office, and the extension alarm systems are respectively installed in each dormitory Inside, the host and the extension alarm system are connected through data lines; the extension alarm system includes a smoke sensor, a pyro-infrared sensor, a photoelectric coupler, a single-chip microcomputer, a keyboard, and an audible alarm. The utility model adopts pyrothermal infrared sensor to detect human body entering and leaving the dormitory, uses smoke sensor to detect fire, if an unknown person enters the dormitory or a fire occurs, the single-chip function can control the sounding alarm to alarm, and at the same time give an alarm to the host, thereby ensuring the safety of the dormitory.

Description

A dormitory fire and burglar alarm system

Technical field:

The utility model relates to an electronic alarm system, in particular to a dormitory fire prevention and anti-theft alarm system.

Background technique:

Today, with the increasing development of social informatization, information technology has penetrated into various fields of human existence and activities. In the field of construction, people's modern life and work require not only comfortable, healthy, safe, reliable, efficient and convenient architectural environments for living and working. At the same time, it must adapt to the requirements of the information society to use scientific and technological means and equipment. Nowadays, there are various types and functions of anti-theft alarm devices, such as wireless and wired anti-theft alarm devices, which bring a great sense of security to people's lives, but these alarm devices are all designed for home security, and there are no professional ones on the market. The alarm device used in the student dormitory appeared. When the dormitory is empty, thieves can pry open the front door to burglary, and there may be a fire, both of which make students feel insecure. The public environment of the dormitory needs to be protected even more.

Utility model content:

The purpose of this utility model is to provide a dormitory fire prevention and anti-theft alarm system for the deficiencies of the above-mentioned technologies. It has fire prevention, anti-theft and automatic alarm functions, and can guarantee the safety of the dormitory.

The technical scheme of the utility model is: a dormitory fire prevention and anti-theft alarm system, which includes a host and at least two extension alarm systems, the host is installed in the dormitory administrator's office, and the extension alarm systems are respectively installed in each dormitory. The extension alarm system is connected through a data line, and is characterized in that:

The extension alarm system includes a smoke sensor, a pyro-infrared sensor, a photoelectric coupler, a single-chip microcomputer, a keyboard, and an audible alarm. The single-chip microcomputer, the photoelectric coupler, the smoke sensor, and the audible alarm are all installed on In the dormitory, the keyboard and the pyro-infrared sensor are installed on the door of the dormitory, the smoke sensor and the pyro-infrared sensor are connected to the input terminal of the photocoupler, and the output terminal of the photocoupler, the keyboard and the sounding alarm are all connected to the single-chip microcomputer.

The beneficial effects of the utility model are:

1. The utility model adopts a pyrothermal infrared sensor to detect the human body entering and leaving the dormitory, and uses a smoke sensor to detect fire. If an unknown person enters the dormitory or a fire occurs, the single-chip microcomputer can control the sound alarm and alarm to the host at the same time, so as to protect the dormitory Safety.

2. The utility model has a unique and novel design, and has safety protection itself.

3. The utility model is simple and practical in structure, low in cost, and beneficial to popularization and use.

Description of drawings:

Below in conjunction with accompanying drawing and embodiment further illustrate the utility model.

Fig. 1 is a structural block diagram of the utility model.

Detailed ways:

As shown in Figure 1, a dormitory fire and burglar alarm system, it includes a host and at least two extension alarm systems, the host is installed in the dormitory administrator's office, the extension alarm system is installed in each dormitory, the host and extension alarm The system is connected by a data line; the extension alarm system includes a smoke sensor, a pyroelectric infrared sensor, a photoelectric coupler, a single-chip microcomputer, a keyboard, an audible alarm, a single-chip microcomputer, a photoelectric coupler, a smoke sensor, The sounding alarms are all installed in the dormitory, and the keyboard and pyro-infrared sensor are installed on the door of the dormitory. Its smoke sensor can use MQ-7 model sensor, which can detect smoke fire; its pyro-infrared sensor can use D224A model sensor, which can detect and detect human body; its single-chip microcomputer uses AT89C51 as the main control chip of the extension. When someone invades, the pyro-infrared sensor senses the signal, and transmits the signal to the single-chip microcomputer through the photoelectric coupler, and the single-chip microcomputer drives the sound alarm to alarm after analyzing and processing. When someone cuts off the line, the current through the optocoupler decreases, and the single-chip microcomputer will send an alarm to the driver after receiving the reduced current, and at the same time send a "line is cut off" signal to the host to cause an alarm. When someone short-circuits the line or the line is short-circuited due to a fault, the current through the photocoupler increases, and the microcontroller will send a "line is short-circuited" signal to the host after receiving the increased current, causing an alarm. When the dormitory owner leaves, the alarm system can be activated through the keyboard. When the dormitory owner comes back, the alarm system can be disarmed by entering the password through the keyboard. In order to achieve multiple protections for the dormitory, to ensure the safety of students' lives and property.

Claims (1)

1. dormitory fire-proof and theft-proof warning system; It comprises a main frame and at least two extension set warning systems, and its main frame is installed on houseparent office, and the extension set warning system then is installed in each dormitory respectively; Main frame is connected through data line with the extension set warning system, it is characterized in that:

Described extension set warning system; It comprises that a smoke transducer, a heat releases infrared sensor, a photoelectrical coupler, a single-chip microcomputer, a keyboard, a sounding alarm; Single-chip microcomputer, photoelectrical coupler, smoke transducer, sounding alarm all are installed in the dormitory; Keyboard and heat are released infrared sensor and are installed on the dormitory door, and smoke transducer and heat are released infrared sensor and connect the photoelectrical coupler input end, and photoelectric coupler output end, keyboard, sounding alarm all join with single-chip microcomputer.

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