CN109979153A - Multifunctional wireless fire alarm device - Google Patents
Multifunctional wireless fire alarm device Download PDFInfo
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- CN109979153A CN109979153A CN201910306761.2A CN201910306761A CN109979153A CN 109979153 A CN109979153 A CN 109979153A CN 201910306761 A CN201910306761 A CN 201910306761A CN 109979153 A CN109979153 A CN 109979153A
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- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 230000008054 signal transmission Effects 0.000 claims abstract description 4
- 101000701440 Homo sapiens Stanniocalcin-1 Proteins 0.000 claims description 31
- 102100030511 Stanniocalcin-1 Human genes 0.000 claims description 31
- 239000004065 semiconductor Substances 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 25
- 101000701446 Homo sapiens Stanniocalcin-2 Proteins 0.000 claims description 23
- 102100030510 Stanniocalcin-2 Human genes 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000000779 smoke Substances 0.000 claims description 17
- 101150068825 MAT1A gene Proteins 0.000 claims description 14
- 102100026115 S-adenosylmethionine synthase isoform type-1 Human genes 0.000 claims description 14
- 101150053596 ams1 gene Proteins 0.000 claims description 14
- 101100449528 Mus musculus Grhl3 gene Proteins 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 101150089658 get1 gene Proteins 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 3
- XZIDTOHMJBOSOX-UHFFFAOYSA-N 2,3,6-TBA Chemical compound OC(=O)C1=C(Cl)C=CC(Cl)=C1Cl XZIDTOHMJBOSOX-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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Abstract
The invention discloses a multifunctional wireless fire alarm device, which comprises an on-site monitoring module and a wireless alarm module, wherein the on-site monitoring module consists of a first main control circuit, a communication interface circuit, a composite sensing circuit, a signal transmission circuit and a power supply circuit, the wireless alarm module consists of a second main control circuit, an acousto-optic alarm circuit, an input interface circuit, a signal receiving circuit and a monitoring display, the on-site monitoring module acquires a monitoring site through the composite sensing circuit and can transmit alarm information to the wireless alarm module, so that the wireless alarm module can send out acousto-optic alarm, the multifunctional wireless fire alarm device has the advantages of small volume and sensitive response, does not need to consume a large amount of time to configure and wire on the site, reduces the installation cost and is convenient to assemble, the signal transmission circuit and the signal receiving circuit can effectively enhance the capacity of the alarm information and greatly reduce the false alarm rate of fire alarms, the safety is high.
Description
Technical field
The present invention relates to a kind of fire alarm equipment, especially a kind of multifunction wireless fire alarm installation.
Background technique
With the development of society and the change of human life style, the factor for inducing fire largely increases, it is ensured that fire
Alarm is executed to warning device energy high efficient and reliable, is domestic and international question of common concern, people life property safety is outstanding to guarantee
To be important, existing warning device is generally divided into multiple types of line-drawing alarm and bus-type alarm;Multiple types of line-drawing alarm mainly passes through detection
Device and corresponding power supply line and signal wire complete alarming assignment jointly, and detector mainly passes through power supply line and provides power supply for it, and
Corresponding signal wire is then responsible for issuing alarm signal when alerting, and when there is fire condition, carries out signal by signal wire
Transmitting, lights warning light;Bus-type alarm is broken up inlet wire using three classes, can be passed through mainly by processor as control core
Corresponding switch carries out controlling alarm, and the control of detector is carried out by way of coding, and corresponding hardware can determine not
Modifiable alarm sensitivity level is then completed by bus in terms of signal transmitting;The fire alarm equipment of above two type,
It is required to carry out targetedly field wiring during installation, can be taken a substantial amount of time in corresponding configuration, worked
It measures huge, and is easy to appear signal thread breakage and cause can not alarm the phenomenon that can not transmitting.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides the multifunction wireless that a kind of detectability is strong, highly-safe
Fire alarm installation.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of multifunction wireless fire alarm installation, including on-site supervision module and with the on-site supervision module establish
The wireless alert module of wireless telecommunications, the on-site supervision module is by the first governor circuit, communication interface circuit, composite sensing electricity
Road, signal circuit and the power circuit for providing working power for the on-site supervision module form;The first master control electricity
The input terminal on road is electrically connected with the communication interface circuit and composite sensing circuit respectively, output end and the signal circuit
Electrical connection;The wireless alert module is by the second governor circuit, sound light alarming circuit, input interface circuit, signal receiving circuit
With monitoring display composition;The input terminal of second governor circuit respectively with the input interface circuit and signal receiving circuit
Electrical connection, output end are electrically connected with the sound light alarming circuit and monitoring display respectively.
First governor circuit includes main control chip STC1, the model of the main control chip STC1
STC12C5A60S2。
The power circuit include battery VBAT1, step-up transformer SX1, voltage-stablizer AMS1, inductance L1, diode D1,
Capacitor C4, capacitor C5, capacitor C13, resistance R19, resistance R20 and resistance R22;1 pin of the step-up transformer SX1 is divided to two
Road, passes sequentially through the diode D1, resistance R19 and resistance R22 ground connection all the way, and another way connects the liter by the inductance L1
5 pins of pressure transformer SX1;2 pins of the step-up transformer SX1 are grounded;3 pins of the step-up transformer SX1 meet institute
State the node of resistance R19 Yu the resistance R22;4 pins of the step-up transformer SX1 pass through tri- tunnel resistance R20 Hou Fen,
5 pins of the step-up transformer SX1 and the node of the inductance L1 are connect all the way, the second tunnel is grounded by the capacitor C5, the
Three tunnels are grounded by the battery VBAT1;1 pin of the voltage-stablizer AMS1 is grounded;2 pins of the voltage-stablizer AMS1 are logical
Cross the capacitor C13 ground connection;3 pins of the voltage-stablizer AMS1 divide two-way, meet the diode D1 and the resistance R19 all the way
Node, another way pass through the capacitor C4 be grounded.
The composite sensing circuit includes smoke sensor device M1, temperature sensor DHT11, resistance R21, resistance R23 and electricity
Hinder R25;1,2 and 3 pins of the smoke sensor device M1 connect 1.2V voltage;4 pins of the smoke sensor device M1 pass through described
Resistance R25 ground connection;5 pins of the smoke sensor device M1 are grounded by the resistance R21;Draw the 6 of the smoke sensor device M1
Foot connects 41 pins of the main control chip STC1;1 pin of the temperature sensor DHT11 connects 1.2V voltage;The temperature passes
2 pins of sensor DHT11 connect 1.2V voltage by the resistance R23;3 pins of the temperature sensor DHT11 meet the master
Control 23 pins of chip STC1;4 pins of the temperature sensor DHT11 are grounded.
The signal circuit includes coding chip U5, transmission antenna LA1, diode D6, capacitor C20, light-emitting diodes
Pipe L5, analog switch U6, triode QM1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, resistance RS1, resistance RS2, electricity
Hinder RS3, resistance RS4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R10, resistance R11, resistance R13, resistance
R14 and resistance R30;The pole S of the metal-oxide-semiconductor Q1 is grounded, and the pole G is drawn by 10 that the resistance R4 meets the main control chip STC1
Foot, D divide pole two-way, connect 12V voltage by the resistance R1 all the way, and another way connects 5 pins of the analog switch U6;It is described
The pole S of metal-oxide-semiconductor Q2 is grounded, and the pole G connects 11 pins of the main control chip STC1 by the resistance R5, and D divides pole two-way, a-road-through
It crosses the resistance R2 and connects 12V voltage, another way connects 13 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q3 is grounded, the pole G
9 pins of the main control chip STC1 are connect by the resistance R13, D divides pole two-way, connects 12V electricity by the resistance R10 all the way
Pressure, another way connect 6 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q4 is grounded, and the pole G meets institute by the resistance R14
8 pins of main control chip STC1 are stated, D divides pole two-way, connects 12V voltage by the resistance R11 all the way, and another way connects the simulation
12 pins of switch U6;14 pins of the analog switch U6 connect 12V voltage;7 poles of the analog switch U6 are grounded;The mould
2,3,9 and 10 pins of quasi- switch U6 pass through the resistance RS4, resistance RS3, resistance RS2 and resistance RS1 respectively and connect the coding
15,14,13 and 12 pins of chip U5;1,4,8 and 11 pins of the analog switch U6 are all connected with the B of the triode QM1
Pole;Two-way is divided in the pole E of the triode QM1, connects the pole B of the triode QM1 by the resistance R30 all the way, and another way is logical
It crosses the light emitting diode L5 and connects 12V voltage;The pole C of the triode QM1 connects 20 pins of the coding chip U5;The volume
1,8,10 and 11 pin floating of code chip U5,9 and 16 pins ground connection, 2,3,4,5,6 and 7 pins connect the main control chip respectively
42,43,44,1,2 and 3 pins of STC1;17 pins of the coding chip U5 connect the coding chip by the resistance R3
18 pins of U5;19 pins of the coding chip U5 connect 1 pin of the transmission antenna LA1;The 3 of the transmission antenna LA1
Pin ground connection, 2 pins connect the cathode of the diode D6, and the anode of the diode D6 divides two-way, connects 12V voltage all the way, separately
It is grounded all the way by capacitor C20.
Second governor circuit includes control chip STC2, the model of the control chip STC2
STC12C5A60S2。
The sound light alarming circuit includes loudspeaker Beef1, triode T1, resistance RL7, resistance RL8, resistance RL9, shines
Diode L1 and light emitting diode L2;The pole E of the triode T1 connects 1.2V voltage, and the pole B connects the control by the resistance RL7
The pole C of 8 pins of coremaking piece STC2, the control chip STC2 is grounded by loudspeaker Beef1;The light emitting diode L1's
Anode connects 1.2V voltage by the resistance RL8, and cathode connects 33 pins of the control chip STC2;The light emitting diode L2
Anode 1.2V voltage is connect by the resistance RL9, cathode connects 32 pins of the control chip STC2.
The signal receiving circuit includes coding chip U1, transmission antenna Get1 and resistance RL1;The coding chip U1's
20 pins connect 1.2V voltage;17 pins of the coding chip U1 are drawn by 18 that the resistance RL1 meets the coding chip U1
Foot;16 pins of the coding chip U1 connect 2 and 3 pins of the transmission antenna Get1 respectively;The coding chip U1 12,
13,14 and 15 pins connect 34,35,36 and 37 pins of the control chip STC2 respectively;1 pin of the transmission antenna Get1
Connect 1.2V voltage, 4 pins ground connection.
The beneficial effects of the present invention are: on-site supervision module of the invention is by the first governor circuit, communication interface circuit, multiple
Sensing circuit, signal circuit and power circuit composition are closed, wireless alert module is by the second governor circuit, sound-light alarm electricity
Road, input interface circuit, signal receiving circuit and monitoring display composition, on-site supervision module are acquired by composite sensing circuit
Monitoring site, and, so that wireless alert module issues audible and visible alarm, can have volume to wireless alert module transfer warning message
Small, the advantages of being quick on the draw, and situ configuration wiring is carried out without taking a substantial amount of time, reduce installation cost and assembly side
Just, signal circuit therein and signal receiving circuit can effectively enhance the anti-interference ability of warning message, greatly
The rate of false alarm of fire alarm is reduced, it is highly-safe.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is circuit block diagram of the invention;
Fig. 2 is circuit diagram first part of the invention;
Fig. 3 is circuit diagram second part of the invention;
Fig. 4 is circuit diagram Part III of the invention;
Fig. 5 is circuit diagram Part IV of the invention;
Fig. 6 is circuit diagram Part V of the invention;
Fig. 7 is circuit diagram Part VI of the invention;
Fig. 8 is circuit diagram Part VII of the invention.
Specific embodiment
Referring to Fig.1, a kind of multifunction wireless fire alarm installation, including on-site supervision module and with the on-site supervision
Module establishes the wireless alert module of wireless telecommunications, and the on-site supervision module is by the first governor circuit, communication interface circuit, multiple
It closes sensing circuit, signal circuit and provides the power circuit composition of working power for the on-site supervision module;Described
The input terminal of one governor circuit is electrically connected with the communication interface circuit and composite sensing circuit respectively, output end and the signal
Transmission circuit electrical connection;The wireless alert module is by the second governor circuit, sound light alarming circuit, input interface circuit, signal
Receive circuit and monitoring display composition;The input terminal of second governor circuit respectively with the input interface circuit and signal
Receive circuit electrical connection, output end respectively with the sound light alarming circuit and monitor display and be electrically connected that (Fig. 2 to Fig. 8 is altogether
It is the complete circuit schematic diagram of the present embodiment, for the ease of observation, complete circuit diagram is divided into 7 portions of Fig. 2 to Fig. 8
Point, the identical terminal of figure label indicates electrical connection).
Referring to Fig. 2, first governor circuit includes main control chip STC1, the model of the main control chip STC1
STC12C5A60S2, the main control chip STC1 have stability, reality mainly for the treatment of the acquisition signal of composite sensing circuit
The advantage that border is low in energy consumption, reaction speed is sensitive, can the effectively low working time for extending warning device, the main control chip STC1 connects
It has been connected to the crystal oscillating circuit and reset circuit of 11.0592MHZ.
The communication interface circuit is mainly made of TTL serial interface, and the main control chip STC1 can be by described logical
Believe that data and program are written interface circuit.
Referring to Fig. 3, the power circuit include battery VBAT1, step-up transformer SX1, voltage-stablizer AMS1, inductance L1,
Diode D1, capacitor C4, capacitor C5, capacitor C13, resistance R19, resistance R20 and resistance R22;The 1 of the step-up transformer SX1
Pin divides two-way, passes sequentially through the diode D1, resistance R19 and resistance R22 ground connection all the way, and another way passes through the inductance L1
Connect 5 pins of the step-up transformer SX1;2 pins of the step-up transformer SX1 are grounded;The 3 of the step-up transformer SX1
Pin connects the node of the resistance R19 Yu the resistance R22;4 pins of the step-up transformer SX1 pass through the resistance R20
Tri- tunnel Hou Fen, connects 5 pins of the step-up transformer SX1 and the node of the inductance L1 all the way, and the second tunnel passes through the capacitor
C5 ground connection, third road are grounded by the battery VBAT1;1 pin of the voltage-stablizer AMS1 is grounded;The voltage-stablizer AMS1
2 pins pass through the capacitor C13 be grounded;3 pins of the voltage-stablizer AMS1 divide two-way, meet the diode D1 and institute all the way
The node of resistance R19 is stated, another way is grounded by the capacitor C4, and the model SX1308 of the step-up transformer SX1, is one
Money fixed frequency, the current mode boost converter of SOT23-6 encapsulation can stablize the input power of battery VBAT1, described steady
The model AMS1117 of depressor AMS1 is a positive low dropout voltage regulator, can provide overheat, current limliting for entire power circuit
Defencive function, in a power, the node of the capacitor C4 and the diode D1 export 12V working power, the pressure stabilizing
The node of the device AMS1 and capacitor C13 exports 1.2V working power.
Referring to Fig. 4, the composite sensing circuit includes smoke sensor device M1, temperature sensor DHT11, resistance R21, resistance
R23 and resistance R25;1,2 and 3 pins of the smoke sensor device M1 connect 1.2V voltage;4 pins of the smoke sensor device M1 are logical
Cross the resistance R25 ground connection;5 pins of the smoke sensor device M1 are grounded by the resistance R21;The smoke sensor device M1
6 pins connect 41 pins of the main control chip STC1;1 pin of the temperature sensor DHT11 connects 1.2V voltage;The temperature
2 pins of degree sensor DHT11 connect 1.2V voltage by the resistance R23;3 pins of the temperature sensor DHT11 meet institute
State 23 pins of main control chip STC1;4 pins of the temperature sensor DHT11 are grounded, and the temperature sensor says acquisition temperature
Degree, moisture signal are converted into the digital signal of high reliablity and are transferred in the main control chip STC1, can ensure that collection in worksite
The authenticity of data reduces the rate of false alarm of warning device;The smoke sensor device M1 is MQ-2 smoke sensor device, can be detected a variety of
Imflammable gas is a kind of inexpensive sensor for being suitble to a variety of applications, and investigative range is wider, and stability is stronger, driving circuit
Simple and sensitivity is higher, sensitive with other combustible gas sensings to liquefied gas, natural gas, hydrogen, propane, and colleague has good
Anti-interference, irritant but non-combustible smog interference can be excluded in the detection.
Referring to Fig. 5, the signal circuit include coding chip U5, transmission antenna LA1, diode D6, capacitor C20,
Light emitting diode L5, analog switch U6, triode QM1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, resistance RS1, electricity
Hinder RS2, resistance RS3, resistance RS4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R10, resistance R11, resistance
R13, resistance R14 and resistance R30;The pole S of the metal-oxide-semiconductor Q1 is grounded, and the pole G meets the main control chip STC1 by the resistance R4
10 pins, D divides pole two-way, connects 12V voltage by the resistance R1 all the way, and another way connects 5 pins of the analog switch U6;
The pole S of the metal-oxide-semiconductor Q2 is grounded, and the pole G connects 11 pins of the main control chip STC1 by the resistance R5, and D divides pole two-way, and one
Road connects 12V voltage by the resistance R2, and another way connects 13 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q3 connects
Ground, the pole G connect 9 pins of the main control chip STC1 by the resistance R13, and D divides pole two-way, pass through the resistance R10 all the way
12V voltage is connect, another way connects 6 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q4 is grounded, and the pole G passes through the resistance
R14 connects 8 pins of the main control chip STC1, and D divides pole two-way, connects 12V voltage by the resistance R11 all the way, another way connects
12 pins of the analog switch U6;14 pins of the analog switch U6 connect 12V voltage;7 poles of the analog switch U6 connect
Ground;2,3,9 and 10 pins of the analog switch U6 pass through the resistance RS4, resistance RS3, resistance RS2 and resistance RS1 respectively
Connect 15,14,13 and 12 pins of the coding chip U5;1,4,8 and 11 pins of the analog switch U6 are all connected with described three
The pole B of pole pipe QM1;Two-way is divided in the pole E of the triode QM1, meets the B of the triode QM1 by the resistance R30 all the way
Pole, another way connect 12V voltage by the light emitting diode L5;The pole C of the triode QM1 connects the 20 of the coding chip U5
Pin;1,8,10 and 11 pin floating of the coding chip U5,9 and 16 pins ground connection, 2,3,4,5,6 and 7 pins connect respectively
42,43,44,1,2 and 3 pins of the main control chip STC1;17 pins of the coding chip U5 are connect by the resistance R3
18 pins of the coding chip U5;19 pins of the coding chip U5 connect 1 pin of the transmission antenna LA1;The biography
3 pins of defeated antenna LA1 are grounded, and 2 pins connect the cathode of the diode D6, and the anode of the diode D6 divides two-way, all the way
12V voltage is connect, another way is grounded by capacitor C20;The signal circuit mainly passes through metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor
Q3, metal-oxide-semiconductor Q4 constitute level shifting circuit, and the warning message of first governor circuit delivering is passed in analog switch U6,
The model MC14066 of the analog switch U6 is capable of providing simulation and the transmission of digital signal, its data in transmission process
Parallel processing switchs in the input signal advantageously than single channel, is mainly shown as that peak voltage ranges are equal to supply voltage
It is more stable with conduction impedance, have the advantages that electrical source consumption is low, small in size, anti-shudder performance is high, analog switch U6 is to alarm signal
Breath is sent to coding chip U5 described in model PT2262 after being regulated and controled and carries out transmission coding, and by transmission antenna LA1 into
The transmission of row fire behavior information.
Referring to Fig. 6, second governor circuit includes control chip STC2, the model of the control chip STC2
The fire behavior information of the collection of STC12C5A60S2, the main control chip STC2 mainly for the treatment of the signal receiving circuit;Institute
It states input interface circuit to be mainly made of TTL serial interface, the main control chip STC2 can pass through the communication interface circuit
Data and program are written;The monitoring display is IPS display screen, the fire behavior feelings of main displaying scene monitoring module acquisition
Condition, the specific environment information of display scene.
Referring to Fig. 7, the sound light alarming circuit includes loudspeaker Beef1, triode T1, resistance RL7, resistance RL8, resistance
RL9, light emitting diode L1 and light emitting diode L2;The pole E of the triode T1 connects 1.2V voltage, and the pole B passes through the resistance RL7
8 pins of the control chip STC2 are connect, the pole C of the control chip STC2 is grounded by loudspeaker Beef1;Described luminous two
The anode of pole pipe L1 connects 1.2V voltage by the resistance RL8, and cathode connects 33 pins of the control chip STC2;It is described to shine
The anode of diode L2 connects 1.2V voltage by the resistance RL9, and cathode connects 32 pins of the control chip STC2;The sound
Optical alarm circuit provides sound and light of alarm for the wireless alert module.
Referring to Fig. 8, the signal receiving circuit includes coding chip U1, transmission antenna Get1 and resistance RL1;The coding
20 pins of chip U1 connect 1.2V voltage;17 pins of the coding chip U1 connect the coding chip by the resistance RL1
18 pins of U1;16 pins of the coding chip U1 connect 2 and 3 pins of the transmission antenna Get1 respectively;The coding core
12,13,14 and 15 pins of piece U1 connect 34,35,36 and 37 pins of the control chip STC2 respectively;The transmission antenna
1 pin of Get1 connects 1.2V voltage, 4 pins ground connection;The model PT226 of the coding chip U1, the coding chip and biography
Defeated antenna G constitutes a receiving module, and in the present embodiment, the signal receiving circuit is provided with 4 receiving modules, main complete
At signal receiving and decoding function.
Above embodiment cannot limit the protection scope of the invention, and the personnel of professional skill field are not departing from
In the case where the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered
Within.
Claims (8)
1. a kind of multifunction wireless fire alarm installation, including on-site supervision module and nothing is established with the on-site supervision module
The wireless alert module of line communication, it is characterised in that the on-site supervision module is by the first governor circuit, communication interface circuit, multiple
It closes sensing circuit, signal circuit and provides the power circuit composition of working power for the on-site supervision module;Described
The input terminal of one governor circuit is electrically connected with the communication interface circuit and composite sensing circuit respectively, output end and the signal
Transmission circuit electrical connection;The wireless alert module is by the second governor circuit, sound light alarming circuit, input interface circuit, signal
Receive circuit and monitoring display composition;The input terminal of second governor circuit respectively with the input interface circuit and signal
Circuit electrical connection is received, output end is electrically connected with the sound light alarming circuit and monitoring display respectively.
2. multifunction wireless fire alarm installation according to claim 1, it is characterised in that the first governor circuit packet
Include main control chip STC1, the model STC12C5A60S2 of the main control chip STC1.
3. multifunction wireless fire alarm installation according to claim 1, it is characterised in that the power circuit includes storing
Battery VBAT1, step-up transformer SX1, voltage-stablizer AMS1, inductance L1, diode D1, capacitor C4, capacitor C5, capacitor C13, resistance
R19, resistance R20 and resistance R22;1 pin of the step-up transformer SX1 divides two-way, pass sequentially through all the way the diode D1,
Resistance R19 and resistance R22 ground connection, another way connect 5 pins of the step-up transformer SX1 by the inductance L1;The boosting
2 pins of transformer SX1 are grounded;3 pins of the step-up transformer SX1 connect the section of the resistance R19 Yu the resistance R22
Point;4 pins of the step-up transformer SX1 connect the 5 of the step-up transformer SX1 by tri- tunnel resistance R20 Hou Fen all the way
The node of pin and the inductance L1, the second tunnel are grounded by the capacitor C5, and third road is connect by the battery VBAT1
Ground;1 pin of the voltage-stablizer AMS1 is grounded;2 pins of the voltage-stablizer AMS1 are grounded by the capacitor C13;It is described steady
3 pins of depressor AMS1 divide two-way, connect the node of the diode D1 Yu the resistance R19 all the way, and another way passes through the electricity
Hold C4 ground connection.
4. multifunction wireless fire alarm installation according to claim 2, it is characterised in that the composite sensing circuit packet
Include smoke sensor device M1, temperature sensor DHT11, resistance R21, resistance R23 and resistance R25;1, the 2 of the smoke sensor device M1
1.2V voltage is connect with 3 pins;4 pins of the smoke sensor device M1 are grounded by the resistance R25;The smoke sensor device M1
5 pins pass through the resistance R21 be grounded;6 pins of the smoke sensor device M1 connect 41 pins of the main control chip STC1;
1 pin of the temperature sensor DHT11 connects 1.2V voltage;2 pins of the temperature sensor DHT11 pass through the resistance
R23 connects 1.2V voltage;3 pins of the temperature sensor DHT11 connect 23 pins of the main control chip STC1;The temperature passes
4 pins of sensor DHT11 are grounded.
5. multifunction wireless fire alarm installation according to claim 2, it is characterised in that the signal circuit packet
Include coding chip U5, transmission antenna LA1, diode D6, capacitor C20, light emitting diode L5, analog switch U6, triode QM1,
Metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, resistance RS1, resistance RS2, resistance RS3, resistance RS4, resistance R1, resistance
R2, resistance R3, resistance R4, resistance R5, resistance R10, resistance R11, resistance R13, resistance R14 and resistance R30;The metal-oxide-semiconductor Q1
The pole S ground connection, the pole G connects 10 pins of the main control chip STC1 by the resistance R4, and D divides pole two-way, pass through all the way described in
Resistance R1 connects 12V voltage, and another way connects 5 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q2 is grounded, and the pole G passes through institute
11 pins that resistance R5 meets the main control chip STC1 are stated, D divides pole two-way, connects 12V voltage by the resistance R2 all the way, another
Road connects 13 pins of the analog switch U6;The pole S of the metal-oxide-semiconductor Q3 is grounded, and the pole G connects the master control by the resistance R13
9 pins of chip STC1, D divide pole two-way, connect 12V voltage by the resistance R10 all the way, and another way meets the analog switch U6
6 pins;The pole S of the metal-oxide-semiconductor Q4 is grounded, and the pole G connects 8 pins of the main control chip STC1, the pole D by the resistance R14
Divide two-way, 12V voltage is connect by the resistance R11 all the way, another way connects 12 pins of the analog switch U6;The simulation is opened
14 pins for closing U6 connect 12V voltage;7 poles of the analog switch U6 are grounded;2,3,9 and 10 pins of the analog switch U6 point
15,14,13 and 12 pins of the coding chip U5 are not connect by the resistance RS4, resistance RS3, resistance RS2 and resistance RS1;
1,4,8 and 11 pins of the analog switch U6 are all connected with the pole B of the triode QM1;The pole E of the triode QM1 is divided to two
Road, connects the pole B of the triode QM1 by the resistance R30 all the way, and another way connects 12V electricity by the light emitting diode L5
Pressure;The pole C of the triode QM1 connects 20 pins of the coding chip U5;1,8,10 and 11 pins of the coding chip U5
Vacantly, 9 and 16 pins are grounded, and what 2,3,4,5,6 and 7 pins met the main control chip STC1 respectively 42,43,44,1,2 and 3 draws
Foot;17 pins of the coding chip U5 connect 18 pins of the coding chip U5 by the resistance R3;The coding chip
19 pins of U5 connect 1 pin of the transmission antenna LA1;3 pins of the transmission antenna LA1 are grounded, and 2 pins connect two pole
The anode of the cathode of pipe D6, the diode D6 divides two-way, connects 12V voltage all the way, and another way is grounded by capacitor C20.
6. multifunction wireless fire alarm installation according to claim 1, it is characterised in that the second governor circuit packet
Include control chip STC2, the model STC12C5A60S2 of the control chip STC2.
7. multifunction wireless fire alarm installation according to claim 6, it is characterised in that the sound light alarming circuit packet
Include loudspeaker Beef1, triode T1, resistance RL7, resistance RL8, resistance RL9, light emitting diode L1 and light emitting diode L2;Institute
The pole E for stating triode T1 connects 1.2V voltage, and the pole B connects 8 pins of the control chip STC2, the control by the resistance RL7
The pole C of coremaking piece STC2 is grounded by loudspeaker Beef1;The anode of the light emitting diode L1 is connect by the resistance RL8
1.2V voltage, cathode connect 33 pins of the control chip STC2;The anode of the light emitting diode L2 passes through the resistance RL9
1.2V voltage is connect, cathode connects 32 pins of the control chip STC2.
8. multifunction wireless fire alarm installation according to claim 6, it is characterised in that the signal receiving circuit packet
Include coding chip U1, transmission antenna Get1 and resistance RL1;20 pins of the coding chip U1 connect 1.2V voltage;The coding
17 pins of chip U1 connect 18 pins of the coding chip U1 by the resistance RL1;16 pins of the coding chip U1
2 and 3 pins of the transmission antenna Get1 are connect respectively;12,13,14 and 15 pins of the coding chip U1 connect the control respectively
34,35,36 and 37 pins of coremaking piece STC2;1 pin of the transmission antenna Get1 connects 1.2V voltage, 4 pins ground connection.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105678942A (en) * | 2016-04-01 | 2016-06-15 | 江南大学 | Intelligent fire alarm system and control method thereof |
CN105741472A (en) * | 2016-04-27 | 2016-07-06 | 广西科技大学 | Automatic fire alarm system based on smoke and temperature abnormity |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN105678942A (en) * | 2016-04-01 | 2016-06-15 | 江南大学 | Intelligent fire alarm system and control method thereof |
CN105741472A (en) * | 2016-04-27 | 2016-07-06 | 广西科技大学 | Automatic fire alarm system based on smoke and temperature abnormity |
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Application publication date: 20190705 |