CN104183078A

CN104183078A - Textile workshop fire alarm system

Info

Publication number: CN104183078A
Application number: CN201410473231.4A
Authority: CN
Inventors: 周盈裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-09-17
Filing date: 2014-09-17
Publication date: 2014-12-03

Abstract

The invention discloses a textile workshop fire alarm system and relates to an alarm device. The textile workshop fire alarm system comprises a single-chip microcomputer, an optical alarm device, a buzzer alarm, a four-frequency dividing circuit, an A/D converter, an MQ-2 smoke sensor and a temperature sensor. The single-chip microcomputer is connected with the optical alarm device, the buzzer alarm and the four-frequency dividing circuit. The four-frequency dividing circuit is connected with the A/D converter. The MQ-2 smoke sensor is also connected with the A/D converter. The A/D converter is connected with the single-chip microcomputer. The temperature sensor is connected with the single-chip microcomputer. The textile workshop fire alarm system is simple in structure and high in safety and reliability, and can prevent and reduce fire hazards and guarantee personal and property safety.

Description

Spinning and weaving workshop fire alarm system

Technical field

What the present invention relates to is a kind of warning device, is specifically related to a kind of spinning and weaving workshop fire alarm system.

Background technology

Along with the increase of fire, power consumption for modern textile workshop, the frequency that spinning and weaving workshop fire occurs is more and more higher, and fire-alarm is also widely used in various occasions thereupon.

Automatic fire alarm system belongs to building automatic category, is a main composition system of current building automatic.It arranges object is in order to prevent and to reduce fire hazard, protecting the person and property safety.Fire alarm technology is an element task of fire preventing, has wide range of applications.Report to the police early, loss is few, not only the entity and individual of breaking out of fire is had to vital role, and public security fire-fighting supervisory organ is stamped out a fire in time, reduces casualties and property loss is of great practical significance equally.

Automatic fire alarm system is by trigger device, fire alarm installation, Fire alarm device and have the installation composition of other subsidiary functions.Along with developing rapidly of electronic technology and computer technology, structure, the form of automatic fire alarm system are more and more versatile and flexible, are difficult to accurately be divided into several fixing patterns.Automatic fire alarm technology trends towards intellectualizing system, and any type of automatic fire alarm latticed form of this system one-tenth capable of being combined can be both Zone Alerts system, can be again centralized alarm system or control center alarm system form.

At present a lot of for the kind of the fire-alarm of spinning and weaving workshop on the market, but most warning poor effect has been brought hidden fire-fighting danger, and security is not high.

Summary of the invention

For the deficiency existing in prior art, the present invention seeks to be to provide a kind of spinning and weaving workshop fire alarm system, simple in structure, safe reliability is high, can prevent and reduce fire hazard, the protection person and property safety.

To achieve these goals, the present invention realizes by the following technical solutions: spinning and weaving workshop fire alarm system, comprise single-chip microcomputer, light warning device, buzzer siren, divide by four circuit, A/D converter, MQ-2 smoke transducer and temperature sensor, single-chip microcomputer is connected with light warning device, buzzer siren, divide by four circuit respectively, divide by four circuit is connected with A/D converter, MQ-2 smoke transducer is also connected with A/D converter, A/D converter is connected with single-chip microcomputer, and temperature sensor is connected with single-chip microcomputer.

As preferably, the model of described single-chip microcomputer is STC89C52.

As preferably, described A/D converter adopts ADC0809.

As preferably, described temperature sensor adopts DS18B20 digital temperature sensor.

First the present invention, gathers the smokescope of surrounding environment by the MQ-2 smoke transducer of data acquisition module, deliver to Single-chip Controlling center process through A/D conversion; Simultaneously by DS18B20 digital temperature sensor, gather the temperature in surrounding environment, through information processing, be converted into C51[15] digital quantity that can process of single-chip microcomputer.In STC89C52 single-chip microcomputer, gather also treated data and will compare to the relevant higher limit of system defined (higher limit is the upper limit that assurance system is normally worked when surrounding environment is in shape simultaneously), if surpassed higher limit, illustrate that surrounding environment is abnormal, report to the police, so that people's normal life and work.Informix is processed, according to the actual needs and on-the-spot environment, found and identify alarm, form intelligentized supervisory system, improved the reliability of system works.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, describe the present invention in detail;

Fig. 1 is structured flowchart of the present invention;

Fig. 2 is the pinouts of single-chip microcomputer of the present invention;

Fig. 3 is the internal logic structure figure of A/D converter of the present invention;

Fig. 4 is the connecting circuit figure of smooth warning device of the present invention and buzzer siren.

Embodiment

For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.

With reference to Fig. 1-4, this embodiment is by the following technical solutions: spinning and weaving workshop fire alarm system, comprise single-chip microcomputer 1, light warning device 2, buzzer siren 3, divide by four circuit 4, A/D converter 5, MQ-2 smoke transducer 6 and temperature sensor 7, single-chip microcomputer 1 is connected with light warning device 2, buzzer siren 3, divide by four circuit 4 respectively, divide by four circuit 4 is connected with A/D converter 5, MQ-2 smoke transducer 6 is also connected with A/D converter 5, A/D converter 5 is connected with single-chip microcomputer 1, and temperature sensor 7 is connected with single-chip microcomputer 1.

Model that it should be noted that described single-chip microcomputer 1 is STC89C52.

It should be noted that described A/D converter 5 adopts ADC0809.The course of work of ADC0809 is: first input 3 bit address, and make ALE=1, address is deposited in address latch.Comparer is arrived through one of decoding gating 8 tunnel analog inputs in this address.START rising edge resets successive approximation register.Negative edge starts A/D conversion, and EOC output signal step-down, indicates conversion to carry out afterwards.Until A/D converts, EOC becomes high level, indication A/D EOC, and result data has deposited latch in, and this signal can be used as interrupting application.When OE input high level, output triple gate is opened, and the digital output of transformation result is to data bus.

It should be noted that described temperature sensor 7 adopts DS18B20 digital temperature sensor.

In addition, the circuit diagram of described light warning device 2 and buzzer siren 3 as shown in Figure 4.

The signal that MQ-2 in this embodiment gathers is changed without A/D, so need meet ADC0809, realizes analog to digital conversion, and DS18B20 itself just has analog to digital conversion, so do not need to connect A/D conversion chip, can directly be connected with single-chip microcomputer again.When carrying out A/D conversion, the CLK clock signal of ADC0809 chip is advisable with 500KHz, uses 74LS74 to build divide by four circuit, and Chip Microcomputer A LE mouth output ground 2MHz frequency division can be obtained to required signal.

This embodiment is simple in structure, and safe reliability is high, can prevent and reduce fire hazard, the protection person and property safety.

Described is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. spinning and weaving workshop fire alarm system, it is characterized in that, comprise single-chip microcomputer (1), light warning device (2), buzzer siren (3), divide by four circuit (4), A/D converter (5), MQ-2 smoke transducer (6) and temperature sensor (7), single-chip microcomputer (1) respectively with light warning device (2), buzzer siren (3), divide by four circuit (4) is connected, divide by four circuit (4) is connected with A/D converter (5), MQ-2 smoke transducer (6) is also connected with A/D converter (5), A/D converter (5) is connected with single-chip microcomputer (1), temperature sensor (7) is connected with single-chip microcomputer (1).

2. spinning and weaving workshop fire alarm system according to claim 1, is characterized in that, the model of described single-chip microcomputer (1) is STC89C52.

3. spinning and weaving workshop fire alarm system according to claim 1, is characterized in that, described A/D converter (5) adopts ADC0809.

4. spinning and weaving workshop fire alarm system according to claim 1, is characterized in that, described temperature sensor (7) adopts DS18B20 digital temperature sensor.