CN202777561U - Automated fire fighting system for high-rise buildings - Google Patents
Automated fire fighting system for high-rise buildings Download PDFInfo
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- CN202777561U CN202777561U CN 201220524050 CN201220524050U CN202777561U CN 202777561 U CN202777561 U CN 202777561U CN 201220524050 CN201220524050 CN 201220524050 CN 201220524050 U CN201220524050 U CN 201220524050U CN 202777561 U CN202777561 U CN 202777561U
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Abstract
The utility model discloses an automated fire fighting system for high-rise buildings. The utility model mainly aims to provide a fire fighting system which is simple in structure and low in manufacturing cost and has an intelligent function. The automated fire fighting system disclosed by the utility model is characterized by comprising a sensor, an amplifying circuit, an A/D (analog/digital) converter, an RS485 serial interface, a wireless communication module, a status indicating lamp, a sound alarm circuit, a concentration display circuit and an electromagnetic valve control circuit, wherein signals output by the sensor are processed by the amplifying circuit and then converted by the A/D converter, and the signals converted by the A/D converter are input to the test data input end of a 80C51 single chip microcomputer; the RS485 serial interface and the wireless communication module are respectively connected with the 80C51 single chip microcomputer in a bidirectional data stream mode; and the 80C51 single chip microcomputer correspondingly outputs control signals to the status indicating lamp, the sound alarm circuit, the concentration display circuit and the electromagnetic valve control circuit respectively.
Description
Technical field
The utility model relates to a kind of automation fire plant.
Background technology
The automatic fire alarm control system of China experienced grow out of nothing, from simple to the evolution of complexity, its intelligent degree is also more and more higher.But because economic interests, domestic manufacturer biases toward the research and development to the large-sized fire warning system in the commercial locations such as warehouse, market, senior office building, hotel more.They often adopt concentrated area controlling alarm mode, and the system architecture that for this reason produces is complicated, cost is higher.And when the small fireproof units such as construction residential neighborhoods, machine room, office, especially high-rise building, the developer often increases the angle of profit for reducing cost again, only arranges and utilizes the cigarette sense directly to control the spray system magnetic valve, directly starts spray system when smog is sensed in the cigarette sense.But misoperation occurs in this fire-fighting mode easily, and can't test its accuracy when breaking out of fire not.Therefore, need a kind of can being applied in the skyscraper of research, simple in structure, cheap for manufacturing cost but have simultaneously the fire-fighting system of intelligent functions.
Summary of the invention
In order to solve the technical problem of mentioning in the background technology, the utility model provides a kind of automatic fire fighting for skyscraper, this kind system architecture is simple, can arrange respectively at each floor and can also realize networking simultaneously, have testability, and when having intelligent functions, cheap for manufacturing cost owing to adopt single-chip microcomputer, be very suitable in skyscraper, using, improved the safety guarantee to resident living.
The technical solution of the utility model is: this kind is used for the automatic fire fighting of skyscraper, comprise a central controller that is consisted of by MCS80C51 single-chip microcomputer and peripheral circuit, in addition, described automatic fire fighting also includes sensor, amplifying circuit, A/D converter, RS485 serial line interface, wireless communication module, status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit; Wherein, after being processed through amplifying circuit by the signal of described sensor output, through the A/D converter conversion, under being input to, the signal of being changed by A/D converter states the detection data input pin of 80C51 single-chip microcomputer; Described RS485 serial line interface and wireless communication module adopt the bidirectional traffic mode to be connected with described 80C51 single-chip microcomputer respectively; Described 80C51 single-chip microcomputer is respectively to the corresponding output of status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit control signal.
In said structure, described sensor is respectively AD590 temperature sensor and TGS202 gas sensor; Described amplifying circuit adopts the voltage amplifier circuit that connects into the LM324AD operational amplifier; Described A/D converter adopts the ADC0809 chip, and the channel selecting address of this converter is provided through address latch 74ls373 by the P0.0 of described 80C51 single-chip microcomputer～P0.2 port.
The utlity model has following beneficial effect: this kind automatic fire fighting adopts single-chip microcomputer to add that some other cheap electronic components build, structure is very simple, can only in each floor or every house, arrange, saved like this expense of wiring on a large scale and the cost payout of employing industrial computer, the developer in house can accept.Native system can also utilize the RS485 serial line interface to communicate by letter with host computer in needs with wireless communication module but simultaneously.In addition, the display circuit in the native system can be arranged on the public domain in the floor, after the fire signal that detects can being processed by analysis, demonstrates the position of fire to remind other people to hide at the display circuit screen when sending alarm signal.After central controller judges really the condition of a fire occurs, can directly give an order to spraying electromagnetic valve, control it and open.In addition, this kind system is installed after, the connecting terminal block in the system can be opened, and whether can overhaul test by reliably working to every layer fire-fighting system after choosing contact, greatly improved the safety guarantee performance to resident living.
Description of drawings:
Fig. 1 is composition schematic diagram of the present utility model.
Fig. 2 is 80C51 single-chip microcomputer and crystal oscillator and electrical schematic diagram after reset circuit is connected when showing the utility model implementation.
Fig. 3 is 80C51 single-chip microcomputer and electrical schematic diagram after A/D converter is connected when showing the utility model implementation.
Fig. 4 is sensor and electrical schematic diagram after amplifying circuit is connected when showing the utility model implementation.
Fig. 5 is the audible alarm circuit theory diagrams that the 80C51 single-chip microcomputer drives by the P2.1 port when showing the utility model implementation.
Fig. 6 is the status indicator lamp circuit theory diagrams that the 80C51 single-chip microcomputer drives by P2.2 port to P2.5 port when showing the utility model implementation.
Fig. 7 is the electrical schematic diagram of the concentration display circuit that the 80C51 single-chip microcomputer drives by P0.0 port to P0.7 port when showing the utility model implementation.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this kind is used for the automatic fire fighting of skyscraper, comprise a central controller that is consisted of by MCS80C51 single-chip microcomputer and peripheral circuit, and sensor, amplifying circuit, A/D converter, RS485 serial line interface, wireless communication module, status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit.Wherein, after being processed through amplifying circuit by the signal of described sensor output, through the A/D converter conversion, under being input to, the signal of being changed by A/D converter states the detection data input pin of 80C51 single-chip microcomputer; Described RS485 serial line interface and wireless communication module adopt the bidirectional traffic mode to be connected with described 80C51 single-chip microcomputer respectively; Described 80C51 single-chip microcomputer is respectively to the corresponding output of status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit control signal.
When Fig. 2 to Fig. 7 is implementation, the electrical schematic diagram that said units is connected.Wherein, described sensor is respectively AD590 temperature sensor and TGS202 gas sensor; Described amplifying circuit adopts the voltage amplifier circuit that connects into the LM324AD operational amplifier; Described A/D converter adopts the ADC0809 chip, and the channel selecting address of this converter is provided through address latch 74ls373 by the P0.0 of described 80C51 single-chip microcomputer～P0.2 port.
Fig. 2 is 80C51 single-chip microcomputer and crystal oscillator and electrical schematic diagram after reset circuit is connected when showing the utility model implementation.Wherein, crystal oscillating circuit has a high-gain inverting amplifier that is used for consisting of internal oscillator for single-chip microcomputer 80C51 work provides clock signal in the chip, and pin XTAL1 and XTAL2 are respectively input and the outputs of this amplifier.This amplifier consists of self-excited oscillator with swinging device as quartz crystal or ceramic resonance outside the sheet of feedback element.External quartz crystal in the circuit and capacitor C 2, C3 are connected in the backfeed loop of amplifier and consist of parallel oscillatory circuit, and the appearance value of electric capacity is set as 30pF.The basic function of reset circuit is: reset signal is provided when system powers on, until system power supply stable after, cancel reset signal.For the purpose of reliable, also to just cancel reset signal through certain time-delay after power supply is stable, in case the shake that causes in power switch or the attaching plug deciliter process and affecting resets.Single-chip microcomputer all needs to reset when starting, so that CPU and various parts are in definite original state, and starts working from initial state.The reset signal of 80C51 is to be input to the Schmidt trigger in the chip from the REST pin.When system is in normal operating conditions, and oscillator stable after, if a high level is arranged on the REST pin and keep 2 more than the machine cycle, then CPU just can respond and with system reset.
Fig. 4 is sensor and electrical schematic diagram after amplifying circuit is connected when showing the utility model implementation.The reason that amplifying circuit is set is: the analog signal of sensor output is fainter, and contains interfering signal, so system need to amplify signal, filter.For the analog signal of sensor output, nurse one's health it or amplify with operational amplifier, to satisfy A/D converter to the requirement of input analog amount amplitude and polarity.As shown in the figure, operational amplifier is connected into voltage amplifier circuit.From the weak voltage signals that the sensor collection is come, the amplification through voltage amplifier obtains stronger analog voltage signal.During sampling, after corresponding analog voltage signal sent to LM324A and amplify processing from the Vi end, send into the A/D change-over circuit from the output of Vo end.
Fig. 3 is 80C51 single-chip microcomputer and electrical schematic diagram after A/D converter is connected when showing the utility model implementation.IN0 and the IN1 end of the output of smog, temperature sensor through receiving respectively ADC0809 behind the amplifying circuit.The channel selecting address of ADC0809 is provided through address latch 74ls373 output by P0.0～P0.2 of 80C51.The clock signal of ADC0809 is 500KHz, because its inside does not have clock circuit, so clock signal is provided by the ALE port of outside 80C51.When the ALE of 80C51 port not during access external memory, the ALE end of 80C51 is with the fixing positive pulse signal of 1/6 output of oscillation frequency clock, so crystal oscillator is set 12MKz, passes through frequency-halving circuit again, single-chip microcomputer can be exported to ADC0809 the clock signal of 500KHz.Frequency-halving circuit is realized that by d type flip flop R, S hold ground connection, and it is non-that D meets Q, and Q holds as output, and CLK connects the ALE end of 80C51.Because when CP=1, d type flip flop is effective; During CP=0, trigger keeps original state.So d type flip flop can be realized the signal two divided-frequency to the ALE port.Since this fire-fighting system collecting temperature, smoke signal, through the temperature of conditioning, IN-0 and the IN-1 port that smoke signal enters respectively ADC0809, all the other input pin ground connection, 8 digital quantity output pins connect the P0 mouth of 80C51.The P0 mouth of single-chip microcomputer is accepted ADC0809 and is transmitted 8 bit digital quantity, and 8 bit address of exporting to A/D latch through address latch 74ls373, selects low 3 bit address as the passage gating address of A/D.This programme uses 74LS373 as address latch, and when three-state allowed control end OE to be low level, output O0 ~ O7 was the normal logic state, can be used to drive load or bus.When OE was high level, O0 ~ O7 was high-impedance state, neither drove bus, be not the load of bus also, but the logical operation of latch inside was unaffected.Ternary permission control end OE ground connection among the figure, the expression triple gate is opened always.Latch when allowing end LE to be high level, output O0 ~ O7 state is identical with input D0 ~ D7 state; When LE becomes " 0 " by " 1 ", in the data input latch device.The address latch that LE is connected to single-chip microcomputer allows the ALE end.
When P20=0, with the common gating ADC0809 of write signal WR.Ale signal and START signal connect together among the figure, at the forward position of WR signal writing address signal, are changing along starting thereafter.When the ALE port becomes high level, low 3 bit address of 74LS373 output are deposited in the address latch of A/D, this address through one of decoding gating 8 tunnel analog inputs to comparator.The START rising edge is with the register zero clearing in the A/D, and trailing edge starts the A/D conversion, and the EOC end becomes low level afterwards, and the indication conversion is carried out.For example, the optional circulation passage IN0 of OPADD F8H realizes the analog quantity of temperature sensor output is changed; The optional circulation passage IN1 of OPADD F9H realizes the analog quantity of Smoke Sensor output is changed.The EOC status signal EOC of ADC0809 receives the INT1 pin of 80C51, and after A/D converted, EOC became high level, and representation conversion finishes, and result data has deposited latch in, and produces interruption.After 80C51 knew that A/D converts, when the A/D port OE level under P20 and the read signal RD co-controlling became high level, the output triple gate was opened, and the digital output of transformation result is to single-chip microcomputer.
When using native system structure network, generally should be controlled in the alarm region and a table apparatus is set as local alarm controller, the local alarm controller in each floor should be above 3.When local alarm controller was installed on the wall, its base should be less than 1.5m far from the height on ground, and the side of close door-hinge should be less than 0.5m apart from wall, and the front-operated distance should not be less than 1.2m.
In the present embodiment, that use is temperature sensor AD 590 and Smoke Sensor TGS202, Smoke Sensor output voltage v and smokescope p close: v=-0.3p+5.6, the sensitivity that temperature sensor uses is-5.5mV/ ℃, can draw temperature, Smoke Sensor output fire alarm critical voltage value through converting.
Claims (1)
1. an automatic fire fighting that is used for skyscraper comprises a central controller that is made of MCS80C51 single-chip microcomputer and peripheral circuit, it is characterized in that:
Described automatic fire fighting also includes sensor, amplifying circuit, A/D converter, RS485 serial line interface, wireless communication module, status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit; Wherein, after being processed through amplifying circuit by the signal of described sensor output, through the A/D converter conversion, under being input to, the signal of being changed by A/D converter states the detection data input pin of 80C51 single-chip microcomputer; Described RS485 serial line interface and wireless communication module adopt the bidirectional traffic mode to be connected with described 80C51 single-chip microcomputer respectively; Described 80C51 single-chip microcomputer is respectively to the corresponding output of status indicator lamp, audible alarm circuit, concentration display circuit and solenoid valve control circuit control signal;
Described sensor is respectively AD590 temperature sensor and TGS202 gas sensor; Described amplifying circuit adopts the voltage amplifier circuit that connects into the LM324AD operational amplifier; Described A/D converter adopts the ADC0809 chip, and the channel selecting address of this converter is provided through address latch 74ls373 by the P0.0 of described 80C51 single-chip microcomputer～P0.2 port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220524050 CN202777561U (en) | 2012-10-14 | 2012-10-14 | Automated fire fighting system for high-rise buildings |
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| CN 201220524050 CN202777561U (en) | 2012-10-14 | 2012-10-14 | Automated fire fighting system for high-rise buildings |
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| CN202777561U true CN202777561U (en) | 2013-03-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472778A (en) * | 2013-08-31 | 2013-12-25 | 广西华蓝设计(集团)有限公司 | Intelligent control management system for electrical equipment rooms of high-rise building |
| CN105013122A (en) * | 2015-07-10 | 2015-11-04 | 常州市南飞机械有限公司 | Fire self-spraying control system and self-spraying method |
| CN105118219A (en) * | 2015-08-20 | 2015-12-02 | 浙江中控研究院有限公司 | Configurable smoke detector based on CMOS chip and smoke detection network |
| CN105608829A (en) * | 2016-03-30 | 2016-05-25 | 苏州工业职业技术学院 | Fire alarm based on singlechip |
| CN105976553A (en) * | 2016-07-25 | 2016-09-28 | 无锡福镁轻合金科技有限公司 | Construction safety intelligent detection system |
-
2012
- 2012-10-14 CN CN 201220524050 patent/CN202777561U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472778A (en) * | 2013-08-31 | 2013-12-25 | 广西华蓝设计(集团)有限公司 | Intelligent control management system for electrical equipment rooms of high-rise building |
| CN105013122A (en) * | 2015-07-10 | 2015-11-04 | 常州市南飞机械有限公司 | Fire self-spraying control system and self-spraying method |
| CN105118219A (en) * | 2015-08-20 | 2015-12-02 | 浙江中控研究院有限公司 | Configurable smoke detector based on CMOS chip and smoke detection network |
| CN105118219B (en) * | 2015-08-20 | 2017-12-15 | 浙江中控研究院有限公司 | Configurable smoke-detectors and Smoke Detection network based on CMC chips |
| CN105608829A (en) * | 2016-03-30 | 2016-05-25 | 苏州工业职业技术学院 | Fire alarm based on singlechip |
| CN105976553A (en) * | 2016-07-25 | 2016-09-28 | 无锡福镁轻合金科技有限公司 | Construction safety intelligent detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |