CN203773674U

CN203773674U - Alarm circuit

Info

Publication number: CN203773674U
Application number: CN201420033943.XU
Authority: CN
Inventors: 马宪民; 弓晓凤; 梁兰
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2014-01-16
Filing date: 2014-01-16
Publication date: 2014-08-13
Anticipated expiration: 2024-01-16

Abstract

The utility model discloses an alarm circuit, which relates to a smoke alarm system. The alarm circuit comprises a first driving circuit, a second driving circuit, an SCM system, a digital temperature sensor, a smoke sensor, an RS232 interface, a voice alarm circuit, an LED display circuit, a smoke and fire monitoring platform and an exhaust fan, wherein the SCM system is respectively connected with the first driving circuit, the second driving circuit, the digital temperature sensor, the smoke sensor, the RS232 interface and the voice alarm circuit, the second driving circuit is connected with the exhaust fan, the first driving circuit is connected with the LED display circuit, and the RS232 interface is connected with the smoke and fire monitoring platform. The alarm circuit can transmit information in a voice manner quickly, directly and accurately, gives people a very warm feeling, and has good human-computer interaction interface.

Description

Alarm circuit

Technical field

The utility model relates to a kind of smog warning system, be specifically related to a kind of alarm circuit.

Background technology

Smoke and not only damage the physical and mental health of oneself, and can cause serious harm to other people health, life, property etc.Therefore, China has taked series of measures to forbid to smoke in public, but this phenomenon or of common occurrence is not fundamentally resolved, and there is people's smoking in more than 75% place, and especially especially severe is polluted in public place of entertainment.

KTV event of fire is continuous in recent years, and on June 10th, 2005, hotel, south China, Chaonan District, Shantou City one KTV parlor is on fire, causes 31 people dead, and 15 people are injured, is Guangdong Province's the most serious fire failure over 11 years; Be positioned at certain club's breaking out of fire of Longgang District, Shenzhen City, Guangdong Province on September 20th, 2008, accident causes 43 people's death, 59 people's hospitalizations, 6 Ren Liu institutes to watch, and its economic loss causing is quite serious; On April 13rd, 2011, Middle District of Zaozhuang City tap Lu Jindi KTV breaking out of fire, its burnt area reaches 300 square metres, although there is no casualty, has caused serious economy, property loss.

These are mainly that imperfection due to smog warning system causes: 1, traditional sound and light alarm is owing to being subject to the restriction of various conditions, there is function singleness, the shortcoming such as indefinite of reporting to the police, even, because warning message is indefinite, also may break down and process not in time or the phenomenon of dealing with improperly.2, traditional system generally only has a function, or be specially for smoking, makes Non-smoke ash-tray, or be specially for fire, makes fire alarm system.

Utility model content

For the deficiency existing in prior art, the utility model object is to be to provide a kind of alarm circuit, can quick, intuitive and accurately carry out voice and convey a message, and not only gives the sensation of all kindness, but also has good human-computer interaction interface.

To achieve these goals, the utility model is to realize by the following technical solutions: alarm circuit, comprise the first driving circuit, the second driving circuit, Single Chip Microcomputer (SCM) system, digital temperature sensor, smoke transducer, RS232 interface, voice alarm circuit, LED display circuit, smog fire hazard monitoring platform and exhaust fan, Single Chip Microcomputer (SCM) system respectively with the first driving circuit, the second driving circuit, digital temperature sensor, smoke transducer, RS232 interface, voice alarm circuit is connected, the second driving circuit and exhaust fan, the first driving circuit is connected with LED display circuit, RS232 interface is connected with smog fire hazard monitoring platform.

Described voice alarm circuit comprises speech chip ISD1720, microphone Mic and loudspeaker Speaker, 24 pin of speech chip ISD1720,25 pin are connected with the 3rd button S3, second button S2 one end respectively, the 3rd button S3, the second button S2 other end ground connection, 10 pin of speech chip ISD1720,11 pin are connected with the first capacitor C 1, second capacitor C 2 one end respectively, the first capacitor C 1, second capacitor C 2 other ends are connected with microphone Mic, first capacitor C 1 other end is also connected with the second resistance R 2, the second resistance R 2 is connected with the 3rd capacitor C 3 with the first resistance R 1 respectively, the 3rd capacitor C 3 minus earths, the first resistance R 1 is connected with VCC end, 18 pin of speech chip ISD1720 are by the 4th capacitor C 4 ground connection, 18 pin of speech chip ISD1720,20 pin respectively with by the 4th capacitor C 4, the 4th resistance R 4 ground connection, 3 pin of speech chip ISD1720 are connected with the first button S1, the 9th capacitor C 9 one end respectively, the first button S1, the equal ground connection of the 9th capacitor C 9 other end, 2 pin of speech chip ISD1720 and the 5th resistance R 5, light emitting diode D series connection, light emitting diode D positive pole is connected with VCC end, 1 pin of speech chip ISD1720, 28 pin are connected with the 5th capacitor C 5 two ends respectively, the 5th capacitor C 5, the 6th capacitor C 6 parallel connections, 21 pin of speech chip ISD1720, 8 pin are connected with the tenth capacitor C 10 two ends respectively, the tenth capacitor C 10 is in parallel with the 11 capacitor C 11, 14 pin of speech chip ISD1720, 16 pin are connected with the 7th capacitor C 7 two ends respectively, the 7th capacitor C 7 and the 8th capacitor C 8 parallel connections, the 8th capacitor C 8 positive poles are connected with the 12 capacitor C 12 two ends respectively with 12 pin of speech chip ISD1720, the 12 capacitor C 12, the 13 capacitor C 13 parallel connections, the 6th capacitor C 6 positive poles, the 11 capacitor C 11 is anodal to be all connected with VCC end with the 13 capacitor C 13 positive poles, 13 pin of speech chip ISD1720 are connected with loudspeaker Speaker with 15 pin, and 27 pin of speech chip ISD1720 are connected with VCC end by the 6th resistance R 6.

Described Single Chip Microcomputer (SCM) system 3 adopts STC12C5A32AD single-chip microcomputers, has high speed, low-power consumption, the anti-interference advantage such as by force.

Native system adopts smoke transducer (QM series) and temperature sensor (DS18B20) to detect in real time the smokescope in environment and temperature, then by signal pre-processing circuit (filtering, amplify etc.) pass the signal in single-chip microcomputer to process and (smoke signal is classified and processed the concentration scale with judgement smog, determine it is smoking cessation prompting or early warning information), handle rear single-chip microcomputer and show in real time smokescope and temperature and make corresponding warning by driving circuit.

The utlity model has following beneficial effect:

1, than sound and light alarm, audio alert conveys a message fast, directly perceived, accurately, also gives warm sensation, has good human-computer interaction interface;

2, possess smoking cessation prompting and two functions of fire alarm simultaneously.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, describe the utility model in detail;

Fig. 1 is structured flowchart of the present utility model;

Fig. 2 is the circuit diagram of voice alarm circuit of the present utility model.

Embodiment

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

With reference to Fig. 1-2, this embodiment is by the following technical solutions: alarm circuit, comprise the first driving circuit 1, the second driving circuit 2, Single Chip Microcomputer (SCM) system 3, digital temperature sensor 4, smoke transducer 5, RS232 interface 6, voice alarm circuit 7, LED display circuit 8, smog fire hazard monitoring platform 9 and exhaust fan 10, Single Chip Microcomputer (SCM) system 3 respectively with the first driving circuit 1, the second driving circuit 2, digital temperature sensor 4, smoke transducer 5, RS232 interface 6, voice alarm circuit 7 is connected, the second driving circuit 2 and exhaust fan 10, the first driving circuit 1 is connected with LED display circuit 8, RS232 interface 6 is connected with smog fire hazard monitoring platform 9.

It should be noted that, described voice alarm circuit comprises speech chip ISD1720, microphone Mic and loudspeaker Speaker, 24 pin of speech chip ISD1720,25 pin are connected with the 3rd button S3, second button S2 one end respectively, the 3rd button S3, the second button S2 other end ground connection, 10 pin of speech chip ISD1720,11 pin are connected with the first capacitor C 1, second capacitor C 2 one end respectively, the first capacitor C 1, second capacitor C 2 other ends are connected with microphone Mic, first capacitor C 1 other end is also connected with the second resistance R 2, the second resistance R 2 is connected with the 3rd capacitor C 3 with the first resistance R 1 respectively, the 3rd capacitor C 3 minus earths, the first resistance R 1 is connected with VCC end, 18 pin of speech chip ISD1720 are by the 4th capacitor C 4 ground connection, 18 pin of speech chip ISD1720,20 pin respectively with by the 4th capacitor C 4, the 4th resistance R 4 ground connection, 3 pin of speech chip ISD1720 are connected with the first button S1, the 9th capacitor C 9 one end respectively, the first button S1, the equal ground connection of the 9th capacitor C 9 other end, 2 pin of speech chip ISD1720 and the 5th resistance R 5, light emitting diode D series connection, light emitting diode D positive pole is connected with VCC end, 1 pin of speech chip ISD1720, 28 pin are connected with the 5th capacitor C 5 two ends respectively, the 5th capacitor C 5, the 6th capacitor C 6 parallel connections, 21 pin of speech chip ISD1720, 8 pin are connected with the tenth capacitor C 10 two ends respectively, the tenth capacitor C 10 is in parallel with the 11 capacitor C 11, 14 pin of speech chip ISD1720, 16 pin are connected with the 7th capacitor C 7 two ends respectively, the 7th capacitor C 7 and the 8th capacitor C 8 parallel connections, the 8th capacitor C 8 positive poles are connected with the 12 capacitor C 12 two ends respectively with 12 pin of speech chip ISD1720, the 12 capacitor C 12, the 13 capacitor C 13 parallel connections, the 6th capacitor C 6 positive poles, the 11 capacitor C 11 is anodal to be all connected with VCC end with the 13 capacitor C 13 positive poles, 13 pin of speech chip ISD1720 are connected with loudspeaker Speaker with 15 pin, and 27 pin of speech chip ISD1720 are connected with VCC end by the 6th resistance R 6.

In addition, described Single Chip Microcomputer (SCM) system 3 adopts STC12C5A32AD single-chip microcomputers, has high speed, low-power consumption, the anti-interference advantage such as by force.

This embodiment mainly comprises single-chip minimum system, temperature detecting module, Smoke Detection module (minute two grades), voice broadcast module, key-press module, drives fan smoke evacuation module and LED display module.Wherein take STC12C5A32AD monolithic as core, by MQ-2 and DS18B20, the smog in environment and temperature are carried out to Real-Time Monitoring, and show in real time, when surpassing certain index, report to the police or the work of smoke evacuation module.

This embodiment is based on Real-Time Monitoring accurately, therefore adopt multi-point communication, to the monitoring of all layouting of each room, then by communication network, delivers to main Control Room.In operation, native system is intended host computer to do master-control room in practice, and slave computer multipoint acquisition smog is sent to host computer by signal, by LED lamp, shows that each room smokescope and temperature regime are to monitor in real time.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. alarm circuit, it is characterized in that, comprise the first driving circuit (1), the second driving circuit (2), Single Chip Microcomputer (SCM) system (3), digital temperature sensor (4), smoke transducer (5), RS232 interface (6), voice alarm circuit (7), LED display circuit (8), smog fire hazard monitoring platform (9) and exhaust fan (10), Single Chip Microcomputer (SCM) system (3) respectively with the first driving circuit (1), the second driving circuit (2), digital temperature sensor (4), smoke transducer (5), RS232 interface (6), voice alarm circuit (7) is connected, the second driving circuit (2) and exhaust fan (10), the first driving circuit (1) is connected with LED display circuit (8), RS232 interface (6) is connected with smog fire hazard monitoring platform (9).

2. alarm circuit according to claim 1, it is characterized in that, described voice alarm circuit (7) comprises speech chip (ISD1720), microphone (Mic) and loudspeaker (Speaker), 24 pin of speech chip (ISD1720), 25 pin are connected with the 3rd button (S3), the second button (S2) one end respectively, the 3rd button (S3), the second button (S2) other end ground connection, 10 pin of speech chip (ISD1720), 11 pin are connected with the first electric capacity (C1), the second electric capacity (C2) one end respectively, the first electric capacity (C1), the second electric capacity (C2) other end are connected with microphone (Mic), the first electric capacity (C1) other end is also connected with the second resistance (R2), the second resistance (R2) is connected with the 3rd electric capacity (C3) with the first resistance (R1) respectively, the 3rd electric capacity (C3) minus earth, the first resistance (R1) is connected with VCC end, 18 pin of speech chip (ISD1720) are by the 4th electric capacity (C4) ground connection, 18 pin of speech chip (ISD1720), 20 pin respectively with by the 4th electric capacity (C4), the 4th resistance (R4) ground connection, 3 pin of speech chip (ISD1720) are connected with the first button (S1), the 9th electric capacity (C9) one end respectively, the first button (S1), the equal ground connection of the 9th electric capacity (C9) other end, 2 pin of speech chip (ISD1720) and the 5th resistance (R5), light emitting diode (D) series connection, light emitting diode (D) is anodal to be connected with VCC end, 1 pin of speech chip (ISD1720), 28 pin are connected with the 5th electric capacity (C5) two ends respectively, the 5th electric capacity (C5), the 6th electric capacity (C6) parallel connection, 21 pin of speech chip (ISD1720), 8 pin are connected with the tenth electric capacity (C10) two ends respectively, the tenth electric capacity (C10) is in parallel with the 11 electric capacity (C11), 14 pin of speech chip (ISD1720), 16 pin are connected with the 7th electric capacity (C7) two ends respectively, the 7th electric capacity (C7) and the 8th electric capacity (C8) parallel connection, the 8th electric capacity (C8) is anodal to be connected with the 12 electric capacity (C12) two ends respectively with 12 pin of speech chip (ISD1720), the 12 electric capacity (C12), the 13 electric capacity (C13) parallel connection, the 6th electric capacity (C6) positive pole, the 11 electric capacity (C11) is anodal to be all connected with VCC end with the 13 electric capacity (C13) positive pole, 13 pin of speech chip (ISD1720) are connected with loudspeaker (Speaker) with 15 pin, and 27 pin of speech chip (ISD1720) are connected with VCC end by the 6th resistance (R6).

3. alarm circuit according to claim 1, is characterized in that, described Single Chip Microcomputer (SCM) system (3) adopts STC12C5A32AD single-chip microcomputer.