CN209885073U - Intelligence extinguishing device based on single chip microcomputer control - Google Patents
Intelligence extinguishing device based on single chip microcomputer control Download PDFInfo
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- CN209885073U CN209885073U CN201920684178.0U CN201920684178U CN209885073U CN 209885073 U CN209885073 U CN 209885073U CN 201920684178 U CN201920684178 U CN 201920684178U CN 209885073 U CN209885073 U CN 209885073U
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Abstract
The utility model relates to the technical field of fire control, in particular to an intelligent fire extinguishing device based on single chip microcomputer control, which comprises a single chip microcomputer control unit, a power supply module, a smoke alarm, a voltage comparator, a photoelectric coupler, a solenoid valve, a fire retardant channel and a jet orifice, wherein the intelligent fire extinguishing device takes the single chip microcomputer as a control core, the smoke alarm module realizes indoor environment monitoring, the voltage comparator realizes signal conversion, the single chip microcomputer control unit analyzes and judges signals sent by the voltage comparator, when a fire disaster is confirmed, the indoor environment reaches a critical value, the smoke alarm gives an alarm, the single chip microcomputer sends an output signal to the photoelectric coupler, the photoelectric coupler plays a role in isolating high and low voltage signals, the solenoid valve can be opened by the output signal of the photoelectric coupler, the fire retardant channel is opened, the jet orifice sprays fire retardants such as water or dry powder to eliminate the fire disaster at an initial, this intelligent extinguishing device collects fire alarm and fire extinguishing function in an organic whole, has realized extinguishing device's intellectuality.
Description
Technical Field
The utility model relates to a fire control technical field, in particular to intelligence extinguishing device based on single chip microcomputer control.
Background
Along with the development of economy, high-rise buildings are more and more, and the fire safety of the high-rise buildings is more and more emphasized by people because once the high-rise buildings catch fire, the fire spread rapidly, the evacuation of people is difficult, and the difficulty in fighting is high. However, most of fire extinguishing equipment used by people at present belongs to passive fire extinguishing equipment, the intelligent degree is not high, and a fire disaster happens when people walk in the sky, so that great economic loss can be caused, and the life and property safety of other people on the upper floor and the lower floor can be endangered.
Disclosure of Invention
To the above-mentioned problem that exists, the utility model aims at: design an intelligent extinguishing device of section, install in the position of easily taking place the conflagration such as kitchen, charging socket, if take place the condition of a fire after, can realize in time reporting to the police and automatic fire extinguishing, can minimize people's loss of property, protection people's life safety, the above-mentioned problem of effectual solution.
The technical scheme of the utility model is that: an intelligent fire extinguishing device based on single chip microcomputer control comprises a smoke alarm, a voltage comparator module, a single chip microcomputer control unit, a photoelectric coupler, an electromagnetic valve, a fire retardant channel, a jet orifice and a power supply module; the smoke alarm is connected with the voltage comparator module, detects an indoor environment and sends an analog signal to the voltage comparator module, and the voltage comparator module converts the received analog signal into a pulse signal; the voltage comparator module is connected with the single chip microcomputer control unit, the single chip microcomputer control unit is connected with the photoelectric coupler, and the photoelectric coupler is connected with the electromagnetic valve; the single chip microcomputer control unit receives the pulse signal from the voltage comparator, judges whether a fire disaster occurs according to the characteristics and the continuous occurrence frequency of the pulse signal, and sends a signal to the photoelectric coupler when the fire disaster occurs, and the photoelectric coupler sends a signal to control the opening of the electromagnetic valve; the electromagnetic valve is arranged on the flame retardant channel, and the tail end of the flame retardant channel is provided with a jet orifice.
Further, the smoke alarm comprises an NIS-07 ionic smoke sensor, an MC145018 chip and a piezoelectric loudspeaker.
Further, the voltage comparator module selects the LM393 dual voltage comparator integrated circuit as a core chip.
Further, the single chip microcomputer control unit selects an STC12C5A60S2 single chip microcomputer as a main control chip.
Further, the model of the photoelectric coupler is TLP 521-4.
Further, the flame retardant passing through the flame retardant channel may be a water or non-water flame retardant; when water is selected as the flame retardant, the flame retardant channel is connected with a tap water pipeline in a building; when a non-water flame retardant is selected, the flame retardant channel is connected to a non-water flame retardant container.
Further, the injection port is configured according to the type of the flame retardant, and may be a rotary nozzle or a large-diameter nozzle.
Has the advantages that: the utility model discloses an equipment cooperation integrated intelligent extinguishing device of each functional module, use the singlechip as control core, realize indoor environment monitoring by smoke alarm module, voltage comparator realizes signal conversion, the signal that single chip microcomputer control unit sent voltage comparator is analyzed and is judged, when confirming there is the conflagration to take place, the critical value is reachd to the indoor environment, smoke alarm reports to the police, the singlechip sends output signal and gives optoelectronic coupler, optoelectronic coupler plays high-low pressure signal isolation, optoelectronic coupler's output signal can open the solenoid valve, the fire retardant passageway is opened, the fire retardant such as jet injection water or non-water, eliminate the conflagration in the stage of initiating, this intelligent extinguishing device collects fire alarm and fire extinguishing function in an organic whole, extinguishing device's intellectuality has been realized.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention.
Fig. 2 is a minimum application system of the STC12C5a60S2 single chip microcomputer.
Figure 3 is a smoke alarm module.
Fig. 4 is a voltage comparator module.
Fig. 5 is a photocoupler and solenoid valve module.
Fig. 6 is a flowchart of the main program of the present invention.
Fig. 7 shows the input signal at the P3.7 port in case of fire.
Fig. 8 shows the input signal at the P3.7 port in the absence of a fire.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation, and do not deviate from the utility model discloses the scope of protection.
As shown in figure 1, the intelligent fire extinguishing device based on single-chip microcomputer control comprises a single-chip microcomputer control module, a power supply module, a smoke alarm module, a voltage comparator module, a photoelectric coupler module, an electromagnetic valve module, a fire retardant module and a jet orifice module. When the indoor environment is over-limit, the smoke alarm gives an alarm and sends a signal to the voltage comparator, the voltage comparator is connected with the input port of the single chip microcomputer, the output port of the single chip microcomputer is connected with the photoelectric coupler, the photoelectric coupler is connected with the electromagnetic valve, and the electromagnetic valve is installed on the flame retardant channel and used for controlling the conduction and the stop of the flame retardant pipeline.
The intelligent fire extinguishing device selects an STC12C5A60S2 single-chip microcomputer of Shenzhen macrocrystal science and technology Limited as a main control chip. The single chip microcomputer adopts an enhanced 8051CPU core, is compatible with a common 8051 single chip microcomputer instruction set, and integrates a60 KB program FLASH, a 1KB data FLASH and a 1280 byte RAM in the single chip microcomputer. 2 16-bit timer/counter modules, 44I/O port lines are provided on-chip. Various interfaces are fully expanded, 2 full-duplex asynchronous serial ports (UARTs) and high-speed synchronous communication ports (SPIs) are provided in the chip, the chip has a system programming (ISP) function and a system debugging (ISD) function, and a minimum application system of an STC12C5A60S2 singlechip is shown in figure 2.
The smoke alarm module is composed of an NIS-07 ion type smoke sensor, an MC145018 chip and other related electronic components according to related data and electronic accessories provided by Shenzhen Shangen science and technology Limited, the performance of the smoke alarm module is superior to that of a gas-sensitive resistance type fire alarm, and a smoke alarm module circuit is shown in figure 3, wherein an analog signal is taken out from a 2 nd pin of the MC145018 chip, and the analog signal is sent to a P3.7 pin of a single chip microcomputer after being subjected to signal conversion and shaping by a voltage comparator module.
The voltage comparator module selects an LM393 double-voltage comparator integrated circuit as a core chip, the circuit is shown in figure 4, the intelligent fire extinguishing device is only used for one group of double-voltage comparators and consists of pins 1, 2 and 3 in the LM393, wherein the pin 3 is a non-inverting input end, the pin 2 is an inverting input end, and the pin 1 is an output end, and in addition, a power supply pin 8 (the power supply pin 8 is connected with +5V and is provided by a single chip microcomputer power supply, and meanwhile, an adjustable reference voltage is provided for the pin 2 of the LM 393) and a grounding pin 4 are required to be connected. The 3 rd pin of the voltage comparator LM393 leads in a signal output by the 2 pin of the smoke alarm chip MC145018 to be compared with a reference voltage provided by the 2 pin of the LM393, so that the signal output by the 2 pin of the chip MC145018 is subjected to waveform shaping, an irregular waveform of an input end is converted into a pulse signal and is input to a P3.7 port of the single chip microcomputer, the single chip microcomputer can acquire data sent by the smoke alarm, and the single chip microcomputer analyzes the read data to judge whether a fire disaster occurs.
Photoelectric coupler and solenoid valve module, intelligent extinguishing device utilize photoelectric coupler's isolation, realize opening or closing the solenoid valve under single chip microcomputer control, photoelectric coupler select TLP521-4, have 4 independent photoelectric coupling units in, can make the input signal of front end totally separate with the load in back to the security of reinforcing circuit. The circuit is shown in fig. 5, a P2.1 port of the single chip microcomputer is used as an output control signal and is connected with an 8 pin of a photoelectric coupler, and a 7 pin of the photoelectric coupler and the single chip microcomputer system share a +5V power supply. The pin 9 of the photoelectric coupler is connected with the triode BD139 in common, and the pin 10 of the photoelectric coupler is used as an output control signal of the photoelectric coupler to control the opening and closing of the following electromagnetic valve.
The fire retardant is selected, considering that the installation is convenient, tap water is generally selected as the fire retardant and is directly connected with an indoor tap water pipeline, but according to the difference of fire-causing combustion substances, some substances are not suitable for extinguishing fire by water, so that a non-water fire retardant such as dry ice can be selected for extinguishing fire, but structural modification is needed, the tank body of the dry ice fire extinguisher commonly used at present can be modified by referring to the structure of a household gas tank, and then the dry ice fire extinguisher is connected with an electromagnetic valve.
The electromagnetic valve selected by the intelligent fire extinguishing device is selected according to the type of the electromagnetic valve, the power supply voltage of the electromagnetic valve is 12V direct current voltage, and the electromagnetic valve with higher power supply voltage can be selected according to factors such as the property of a fire retardant and the pressure intensity of a pipeline, so that the tightness and the normal opening and closing functions of the electromagnetic valve are guaranteed.
The selection of shower nozzle, intelligent extinguishing device should consider the coverage area at the in-process of putting out a fire, if regard as fire retardant with water, can refer to each type of shower nozzle that uses in the afforestation, for example rotatory shower nozzle, spiral nozzle etc. and select suitable type to install. If other substances such as dry ice are used as the flame retardant, a large-caliber spray head is selected to avoid pipeline blockage.
The main program flow chart of the system is shown in fig. 6, after the intelligent fire extinguishing device system is started, the smoke alarm is in a working state, signals output by the smoke alarm are shaped by the voltage comparator module and then are divided into two types, one type is signals sent out under the condition of fire, the signals are called abnormal pulse signals, and the waveforms of the signals are shown in fig. 7; one is a low voltage non-pulse signal emitted in the absence of a fire, the waveform of which is shown in fig. 8. No matter what kind of signal, all handing over after voltage comparator plastic processing in the input port (P3.7 mouths) of singlechip and judging the discernment, the singlechip counts the abnormal pulse in an accumulation way, and here sets up when the number of times that the abnormal pulse appears in succession exceeds 8, just thinks there is the conflagration emergence, can open the solenoid valve and put out a fire, and the number of times that the abnormal pulse appears is less than 8, thinks to be interference signal, does not open the solenoid valve. Because singlechip programming possesses the flexibility, so program flow chart and the control program of singlechip all can further optimize, compromise the reliability of device when improving intelligent extinguishing device sensitivity.
For making this kind of extinguishing device more intelligent, can utilize the WIFI module in the future when improving, set up the WIFI module and be the STA mode, connect in the router or the hot spot that have the network, and then connect china's removal thing networking development platform OneNET to realize functions such as remote detection, control to intelligent extinguishing device. This intelligent fire extinguishing device is fit for little space, little region and puts out a fire, to the condition that big space, big region were put out a fire that needs carry out, can solve through the mode that increases smoke transducer and jet quantity, and this software and hardware system that just needs this kind of intelligent fire extinguishing device upgrades the transformation.
When the smoke alarm detects that the indoor environment is at a critical value due to fire, firstly, the piezoelectric loudspeaker is started to give an alarm, meanwhile, the smoke alarm outputs an analog signal to the voltage comparator module to perform signal conversion and shaping, the shaped signal is sent to the single chip microcomputer to be identified and judged, when a fire disaster is confirmed, the single chip microcomputer sends a control signal to the photoelectric coupler, the photoelectric coupler sends an output signal to start the electromagnetic valve and open the flame retardant channel, the flame retardant is sprayed to a fire point until the fire is completely extinguished, then, the electromagnetic valve is closed by a system, and the fire extinguishing work is finished.
In order to ensure that the intelligent fire extinguishing device can still normally extinguish fire when a fire disaster occurs when the smoke alarm fails, an access control system in a common residential building can be considered, after the fire disaster occurs, a string of decimal passwords is input by property management personnel below the building and is transmitted to a room on the building as a fire extinguishing signal, a signal line is independently taken from the intercom system in the room, the fire extinguishing signal is transmitted to an input port of a singlechip control unit through the signal line, and after the singlechip receives the fire extinguishing signal, the singlechip directly opens an electromagnetic valve to open a fire retardant channel for fire extinguishing through analysis and judgment.
The utility model discloses can realize the function that intelligence was put out a fire, neither be the fire alarm ware in the traditional meaning, only have the function of reporting to the police when meetting the conflagration and taking place, also be simple fire extinguisher in the middle of the fire control facility, need artificially intervene when meetting the conflagration and put out a fire. The smoke alarm module has two functions, one function is to play the role of the smoke alarm, smoke alarm is realized when the indoor environment is over-limit, the other function is to play the role of a smoke sensor, when a fire disaster occurs, the smoke alarm gives an alarm and sends a signal to a voltage comparator, the voltage comparator performs signal conversion to form a pulse signal and sends the pulse signal to an input port of a single chip microcomputer, the single chip microcomputer performs analysis and judgment according to the pulse number of the input port, the signal is sent to a photoelectric coupler through an output port of the single chip microcomputer when the fire disaster occurs, the photoelectric coupler sends an output signal to open an electromagnetic valve, so that a fire retardant reaches a jet orifice through a battery valve, and the intelligent fire extinguishing function is realized. The intelligent fire extinguishing device based on the single chip microcomputer control can be further optimized or/and improved according to actual needs.
Above do the embodiment of the utility model discloses an implement effect that has stronger adaptability and preferred can increase or reduce unnecessary technical characterstic according to actual need, satisfies different demands, nevertheless all does not break away from the utility model discloses a design protected scope.
Claims (7)
1. The utility model provides an intelligence extinguishing device based on single chip microcomputer control which characterized in that: the smoke alarm device comprises a smoke alarm, a voltage comparator module, a single chip microcomputer control unit, a photoelectric coupler, an electromagnetic valve, a flame retardant channel, a jet orifice and a power supply module; the smoke alarm is connected with the voltage comparator module, detects an indoor environment and sends an analog signal to the voltage comparator module, and the voltage comparator module converts the received analog signal into a pulse signal; the voltage comparator module is connected with the single chip microcomputer control unit, the single chip microcomputer control unit is connected with the photoelectric coupler, and the photoelectric coupler is connected with the electromagnetic valve; the single chip microcomputer control unit receives the pulse signal from the voltage comparator, judges whether a fire disaster occurs according to the characteristics and the continuous occurrence frequency of the pulse signal, and sends a signal to the photoelectric coupler when the fire disaster occurs, and the photoelectric coupler sends a signal to control the opening of the electromagnetic valve; the electromagnetic valve is arranged on the flame retardant channel, and the tail end of the flame retardant channel is provided with a jet orifice.
2. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the smoke alarm comprises an NIS-07 ion type smoke sensor, an MC145018 chip and a piezoelectric loudspeaker.
3. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the voltage comparator module selects the LM393 dual voltage comparator integrated circuit as a core chip.
4. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the single chip microcomputer control unit selects an STC12C5A60S2 single chip microcomputer as a main control chip.
5. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the model of the photoelectric coupler is TLP 521-4.
6. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the flame retardant passing through the flame retardant channels may be an aqueous or non-aqueous flame retardant; when water is selected as the flame retardant, the flame retardant channel is connected with a tap water pipeline in a building; when a non-water flame retardant is selected, the flame retardant channel is connected to a non-water flame retardant container.
7. The intelligent fire extinguishing apparatus based on single chip microcomputer control according to claim 1, characterized in that: the injection port is configured according to the type of the flame retardant and can be a rotary spray head or a large-caliber spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920684178.0U CN209885073U (en) | 2019-05-14 | 2019-05-14 | Intelligence extinguishing device based on single chip microcomputer control |
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| CN201920684178.0U CN209885073U (en) | 2019-05-14 | 2019-05-14 | Intelligence extinguishing device based on single chip microcomputer control |
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| CN209885073U true CN209885073U (en) | 2020-01-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113516820A (en) * | 2021-07-09 | 2021-10-19 | 深圳市城市公共安全技术研究院有限公司 | Fire early warning method and fire early warning system |
| CN115394055A (en) * | 2022-07-20 | 2022-11-25 | 浙江旅游职业学院 | Intelligent kitchen system |
-
2019
- 2019-05-14 CN CN201920684178.0U patent/CN209885073U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113516820A (en) * | 2021-07-09 | 2021-10-19 | 深圳市城市公共安全技术研究院有限公司 | Fire early warning method and fire early warning system |
| CN113516820B (en) * | 2021-07-09 | 2022-08-02 | 深圳市城市公共安全技术研究院有限公司 | Fire early warning method and fire early warning system |
| CN115394055A (en) * | 2022-07-20 | 2022-11-25 | 浙江旅游职业学院 | Intelligent kitchen system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20200514 |