CN206789013U - SCM Based wired home smog fire detection warning system - Google Patents
SCM Based wired home smog fire detection warning system Download PDFInfo
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- CN206789013U CN206789013U CN201720676216.9U CN201720676216U CN206789013U CN 206789013 U CN206789013 U CN 206789013U CN 201720676216 U CN201720676216 U CN 201720676216U CN 206789013 U CN206789013 U CN 206789013U
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Abstract
A kind of SCM Based wired home smog fire detection warning system, including single-chip minimum system, single-chip minimum system is connected with temperature sensor circuit, power circuit, key circuit, A/D change-over circuits, display circuit and warning circuit respectively, and A/D change-over circuits are connected with smog sensor circuit；Single-chip minimum system includes fourth chip, and the 1st pin, the 2nd pin, the 3rd pin and the 4th pin of fourth chip connect key circuit, the 12nd pin circuit taking alarm；21st pin jointing temp sensor circuit, the 23rd pin, the 24th pin and the 25th pin connect A/D change-over circuits, and the 31st pin and the 40th pin connect power circuit；32nd pin, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th pin, the 38th pin and the 39th pin connect display circuit.The detection warning system has higher reliability, high sensitivity, rate of false alarm is lower simultaneously, can be with the threshold value of self-defined smog alarm, family's smog fire alarm can be intelligently detected in real time, a safe and reliable domestic environment is provided, to prevent and containing that building fire provides strong guarantee.
Description
Technical field
The utility model belongs to Smart Home technical field, is related to a kind of smog fire detection warning system, more particularly to
A kind of SCM Based wired home smog fire detection warning system.
Background technology
With the development of science and technology, increasing huge hidden danger is produced due to industrial production and daily life
It is raw.For early detection and circular fire, fire hazard, the protection person and property safety are prevented and reduced.Safeguard socialism
Modernization construction, prevent fire from causing the accidents such as burning, blast, cause serious economic loss, or even threat to life safety.When
Preceding domestic many research and development all lay particular emphasis on the fire alarm in large-scale place, therefore existing family's smog fire detection warning system
It is inconsistent there is communications protocol, system wrong report, fail to report frequently, intelligence degree is low, the shortcomings such as networking degree is low.
Utility model content
The purpose of this utility model, which is to provide one kind, can monitor family's smokescope in real time, and provide the base of warning function
In the wired home smog fire detection warning system of single-chip microcomputer.
To achieve the above object, technical scheme is used by the utility model：A kind of SCM Based wired home
Smog fire detection warning system, including single-chip minimum system, single-chip minimum system respectively with temperature sensor circuit, electricity
Source circuit, key circuit, A/D change-over circuits, display circuit are connected with warning circuit, A/D change-over circuits and Smoke Sensor
Circuit is connected；
Described single-chip minimum system includes fourth chip, and fourth chip uses STC89C52RC single-chip microcomputers, the 4th core
The 1st pin, the 2nd pin, the 3rd pin and the 4th pin of piece connect key circuit, the 12nd pin circuit taking alarm of fourth chip；Fourth chip
21st pin jointing temp sensor circuit, the 23rd pin, the 24th pin and the 25th pin of fourth chip connect A/D change-over circuits, fourth chip
The 31st pin and the 40th pin connect power circuit；32nd pin of fourth chip, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th
Pin, the 38th pin and the 39th pin connect display circuit.
The utility model detection warning system is improved traditional family's smog fire detection warning system, is had
Higher reliability, high sensitivity, while rate of false alarm is lower, can be with the threshold value of self-defined smog alarm, can be intelligently real
When detect family smog fire alarm, there is provided a safe and reliable domestic environment, to prevent and containing that building fire provides by force
Sound assurance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model detection warning system.
Fig. 2 is the schematic diagram of smog sensor circuit in the utility model detection warning system.
Fig. 3 is the schematic diagram of temperature sensor circuit in the utility model detection warning system.
Fig. 4 is the schematic diagram of key circuit in the utility model detection warning system.
Fig. 5 is the schematic diagram of A/D change-over circuits in the utility model detection warning system.
Fig. 6 is the schematic diagram of single-chip minimum system in the utility model detection warning system.
Fig. 7 is the schematic diagram of display circuit in the utility model detection warning system.
Fig. 8 is the schematic diagram of warning circuit in the utility model detection warning system.
Fig. 9 is the program flow diagram of the utility model detection warning system.
In Fig. 1：1. smog sensor circuit, 2. temperature sensor circuits, 3. power circuits, 4. key circuits, 5.A/D turn
Change circuit, 6. single-chip minimum systems, 7. display circuits, 8. warning circuits.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the utility model detects warning system, including single-chip minimum system 6, single-chip minimum system 6
Respectively with temperature sensor circuit 2, power circuit 3, key circuit 4, A/D change-over circuits 5, display circuit 7 and the phase of warning circuit 8
Connection, A/D change-over circuits 5 are connected with smog sensor circuit 1.
As shown in Fig. 2 the smog sensor circuit 1 in the utility model detection warning system, including the first chip U1, the
One chip U1 is Smoke Sensor MQ-2.First chip U1 the 1st pin, the 2nd pin and the 3rd pin is with connecing power circuit 3；First core
One end of piece U1 the 4th pin, the 6th pin and second resistance R2 intersects at the first contact, first contact and the phase of A/D change-over circuits 5
Connection, the first chip U1 the 5th pin connect first resistor R1 one end, and the second resistance R2 other end and first resistor R1's is another
End ground connection.
MQ-2 semiconductor transducers are with the relatively low metal oxide tin ash of electrical conductivity in clean air（SnO2）For
The N-type semiconductor gas sensor of main body.When aerosol gases be present in sensor local environment, the electrical conductivity of sensor is with air
The increase of middle aerosol gases concentration and increase, the sensor possess general semiconductor Smoke Sensor high sensitivity, electrical conductivity become
Change big, response and recovery time is short, strong antijamming capability, output signal are big, long lifespan and steady operation and other merits.
As shown in figure 3, the temperature sensor circuit 2 in the utility model detection warning system, including the second chip U2, the
Two chip U2 use DSl8B20 temperature sensors, the second chip U2 the 1st pin ground connection；Second chip U2 the 2nd pin and the 3rd electricity
Resistance R3 one end intersect at the second contact, second contact is connected with single-chip minimum system 6, the 3rd resistor R3 other end with
Second chip U2 the 3rd pin connects power circuit 3.
DSl8B20 temperature sensors are the intelligence improvement of DALLAS semiconductor companies of the U.S. newest release after DSl820
Type intelligent temperature sensor.A mouth line is only needed from the DSl8B20 information read or the information for writing DSl8B20（Single line connects
Mouthful）Read-write, temperature inversion power source is in data/address bus, and bus can also power to mounted DSl8B20 in itself, without volume
External power.Thus using DSl8B20 system architecture can be made simpler, reliability is higher.
As shown in figure 4, the key circuit 4 in the utility model smog fire detection warning system, key circuit 4 uses 1
× 4 button design, including the first button S1, the second button S2, the 3rd button S3 and the 4th button S4, the one of the first button S1
End, the second button S2 one end, the 3rd button S3 one end and the 4th button S4 one end are grounded, and the first button S1's is another
End, the second button S2 other end, the 3rd button S3 other end and the 4th button the S4 other end and single-chip minimum system 6
Connection.
As shown in figure 5, the A/D change-over circuits 5 in the utility model detection warning system, including the 3rd chip U3, the 3rd
Chip U3 using ADC0832 conversion chips, ADC0832 be National Semiconductor production the bit resolution of one kind 8,
Double channel A/D conversion chips, its small volume, compatibility are strong.3rd chip U3 the 1st pin, the 5th pin, the 6th pin and the 7th pin connects
Single-chip minimum system 6；3rd chip U3 the 2nd pin connects the first contact in smog sensor circuit 1；The of 3rd chip U3
4 pin are grounded；Fourth chip U4 the 8th pin connects power circuit 3.
As shown in fig. 6, the single-chip minimum system 6 in the utility model detection warning system, including fourth chip U4, the
Four chip U4 use STC89C52RC single-chip microcomputers, and fourth chip U4 the 1st pin meets the first button S1 other end, fourth chip U4
The 2nd pin connect the second button S2 other end, fourth chip U4 the 3rd pin meets the 3rd button S3 other end, fourth chip U4
The 4th pin connect the 4th button S4 other end；Fourth chip U4 the 12nd pin circuit 8 taking alarm；Fourth chip U4 the 21st pin
The second contact in jointing temp sensor circuit 2；Fourth chip U4 the 23rd pin connects the 3rd chip U3 the 5th pin and the 6th pin, the
Four chip U4 the 24th pin connects the 3rd chip U3 the 7th pin, and fourth chip U4 the 25th pin connects the 3rd chip U3 the 1st pin；The
Four chip U4 the 31st pin and the 40th pin connects power circuit 3；Fourth chip U4 the 32nd pin, the 33rd pin, the 34th pin, the 35th pin,
36th pin, the 37th pin, the 38th pin and the 39th pin are connected with display circuit 7.STC89C52RC single-chip microcomputers are that macrocrystalline scientific ＆ technical corporation pushes away
The high speed of new generation that goes out, low-power consumption, superpower jamproof single-chip microcomputer, completely compatible traditional 8051 single-chip microcomputer of instruction code, when 12
Clock/machine cycle and 6 clocks/machine cycle can arbitrarily select.STC89C52 single chip is a kind of low-power consumption, high-performance
CMOS8 8-digit microcontrollers, there is 8K in-system programmable components flash storages.
As shown in fig. 7, the display circuit 7 in the utility model smog fire detection warning system, including fifth chip U5,
It is industrial character mode lcd that fifth chip U5, which uses LCD1602, LCD1602, can show 16 × 02 i.e. 32 character simultaneously, it
It is a kind of dot matrix type Liquid Crystal Module for being specifically used to show letter, numeral, symbol etc..Fifth chip U5 the 3rd pin connects the 4th electricity
Hinder R4 one end, the other end ground connection of fifth chip U5 the 1st pin, the 16th pin and the 5th resistance R5；Fifth chip U5 the 2nd pin
Connect power circuit 3；Fifth chip U5 the 4th pin connects the 28th pin of fourth chip, and fifth chip U5 the 5th pin connects fourth chip
27th pin, fifth chip U5 the 6th pin connect the 26th pin of fourth chip, and fifth chip U5 the 7th pin connects the 39th of fourth chip
Pin, fifth chip U5 the 8th pin connect the 38th pin of fourth chip, and fifth chip U5 the 9th pin connects the 37th pin of fourth chip, the
Five chip U5 the 10th pin connects the 36th pin of fourth chip, and fifth chip U5 the 11st pin connects the 35th pin of fourth chip, and the 5th
Chip U5 the 12nd pin connects the 34th pin of fourth chip, and fifth chip U5 the 13rd pin connects the 33rd pin of fourth chip, the 5th core
Piece U5 the 14th pin connects the 32nd pin of fourth chip；Fifth chip U5 the 15th pin connects power circuit 3.
As shown in figure 8, the warning circuit 8 in the utility model smog fire detection warning system, including triode VT1,
Triode VT1 is positive-negative-positive triode；Triode VT1 emitter stage connects power circuit 3, and triode VT1 base stage connects the 5th resistance
R5 one end, the 5th resistance R5 another termination fourth chip U4 the 12nd pin, triode VT1 colelctor electrode connect electric bell B1 one end
With the 6th resistance R6 one end, the electric bell B1 other end is grounded, the 6th resistance R6 other end sending and receiving optical diode D1 positive pole,
Light emitting diode D1 negative pole ground connection.
As shown in figure 9, the workflow diagram of the utility model smog fire detection warning system.Carrying out initialization first makes
Each normal operation of sensor, then set indoor smog concentration threshold and temperature alarming threshold value.Measured by reading sensor
Data, the Pressure, Concentration, Temperature letter that data analysis is later converted to measured value the pernicious gases such as room smog is carried out within a processor
Breath, and corresponding data can be shown in real time to grasp the relevant information of indoor gas at any time in display circuit 7, if detection
The indoor smog concentration or temperature arrived is beyond the alarm threshold value of setting, the single-chip microcomputer of the utility model smog fire alarm system
Minimum system 6 can control warning circuit electric bell is sent alarm sound.
Claims (7)
1. a kind of SCM Based wired home smog fire detection warning system, it is characterised in that minimum including single-chip microcomputer
System（6）, single-chip minimum system（6）Respectively with temperature sensor circuit（2）, power circuit（3）, key circuit（4）、A/D
Change-over circuit（5）, display circuit（7）And warning circuit（8）It is connected, A/D change-over circuits（5）With smog sensor circuit（1）
It is connected；
Described single-chip minimum system（6）Including fourth chip（U4）, fourth chip（U4）Using STC89C52RC single-chip microcomputers,
Fourth chip（U4）The 1st pin, the 2nd pin, the 3rd pin and the 4th pin connect key circuit（4）, fourth chip（U4）The 12nd pin be informed of a case
Alert circuit（8）；Fourth chip（U4）The 21st pin jointing temp sensor circuit（2）, fourth chip（U4）The 23rd pin, the 24th pin
A/D change-over circuits are connect with the 25th pin（5）, fourth chip（U4）The 31st pin and the 40th pin connect power circuit（3）；Fourth chip
（U4）The 32nd pin, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th pin, the 38th pin and the 39th pin connect display circuit（7）.
2. SCM Based wired home smog fire detection warning system according to claim 1, it is characterised in that
Described A/D change-over circuits（5）Including the 3rd chip（U3）, the 3rd chip（U3）Using ADC0832 conversion chips, the 3rd chip
（U3）The 1st pin connect fourth chip（U4）The 25th pin, the 3rd chip（U3）The 5th pin and the 6th pin connect fourth chip respectively
（U4）The 23rd pin, the 3rd chip（U3）The 7th pin connect fourth chip（U4）The 24th pin；3rd chip（U3）The 2nd pin connect
Smog sensor circuit（1）；3rd chip（U3）The 4th pin ground connection；Fourth chip（U4）The 8th pin connect power circuit（3）.
3. SCM Based wired home smog fire detection warning system according to claim 2, it is characterised in that
Described smog sensor circuit（1）Including the first chip（U1）, the first chip（U1）For Smoke Sensor MQ-2；First chip
（U1）The 1st pin, the 2nd pin and the 3rd pin with connecing power circuit（3）；First chip（U1）The 4th pin, the 6th pin and second electricity
Resistance（R2）One end intersect at the first contact, first contact connects the 3rd chip（U3）The 2nd pin, the first chip（U1）The 5th
Pin connects first resistor（R1）One end, second resistance（R2）The other end and first resistor（R1）The other end ground connection.
4. SCM Based wired home smog fire detection warning system according to claim 1, it is characterised in that
Described temperature sensor circuit（2）Including the second chip（U2）, the second chip（U2）Using DSl8B20 temperature sensors,
Two chips（U2）The 1st pin ground connection；Second chip（U2）The 2nd pin and 3rd resistor（R3）One end intersect at the second contact,
Second contact connects fourth chip（U4）The 21st pin, 3rd resistor（R3）The other end and the second chip（U2）The 3rd pin connect
Power circuit（3）.
5. SCM Based wired home smog fire detection warning system according to claim 1, it is characterised in that
Described key circuit（4）Including the first button（S1）, the second button（S2）, the 3rd button（S3）With the 4th button（S4）, the
One button（S1）One end, the second button（S2）One end, the 3rd button（S3）One end and the 4th button（S4）One end it is equal
Ground connection, the first button（S1）Another termination fourth chip（U4）The 1st pin, the second button（S2）Another termination fourth chip
（U4）The 2nd pin, the 3rd button（S3）Another termination fourth chip（U4）The 3rd pin, the 4th button（S4）Another termination
Fourth chip（U4）The 4th pin.
6. SCM Based wired home smog fire detection warning system according to claim 1, it is characterised in that
Described display circuit（7）Including fifth chip（U5）, fifth chip（U5）Using LCD1602, fifth chip（U5）The 3rd pin
Connect the 4th resistance（R4）One end, fifth chip（U5）The 1st pin, the 16th pin and the 5th resistance（R5）The other end ground connection；The
Five chips（U5）The 2nd pin connect power circuit（3）；Fifth chip（U5）The 4th pin connect fourth chip（U4）The 28th pin, the 5th
Chip（U5）The 5th pin connect fourth chip（U4）The 27th pin, fifth chip（U5）The 6th pin connect fourth chip（U4）The 26th
Pin, fifth chip（U5）The 7th pin connect fourth chip（U4）The 39th pin, fifth chip（U5）The 8th pin connect fourth chip
（U4）The 38th pin, fifth chip（U5）The 9th pin connect fourth chip（U4）The 37th pin, fifth chip（U5）The 10th pin connect
Fourth chip（U4）The 36th pin, fifth chip（U5）The 11st pin connect fourth chip（U4）The 35th pin, fifth chip（U5）
The 12nd pin connect fourth chip（U4）The 34th pin, fifth chip（U5）The 13rd pin connect fourth chip（U4）The 33rd pin,
Five chips（U5）The 14th pin connect fourth chip（U4）The 32nd pin；Fifth chip（U5）The 15th pin connect power circuit（3）.
7. SCM Based wired home smog fire detection warning system according to claim 1, it is characterised in that
Described warning circuit（8）Including triode（VT1）, triode（VT1）For positive-negative-positive triode；Triode（VT1）Emitter stage
Connect power circuit（3）, triode（VT1）Base stage connect the 5th resistance（R5）One end, the 5th resistance（R5）Another termination
Four chips（U4）The 12nd pin, triode（VT1）Colelctor electrode connect electric bell（B1）One end and the 6th resistance（R6）One end, electric bell
（B1）The other end ground connection, the 6th resistance（R6）Other end sending and receiving optical diode（D1）Positive pole, light emitting diode（D1）'s
Negative pole is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676216.9U CN206789013U (en) | 2017-06-12 | 2017-06-12 | SCM Based wired home smog fire detection warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676216.9U CN206789013U (en) | 2017-06-12 | 2017-06-12 | SCM Based wired home smog fire detection warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206789013U true CN206789013U (en) | 2017-12-22 |
Family
ID=60717128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720676216.9U Expired - Fee Related CN206789013U (en) | 2017-06-12 | 2017-06-12 | SCM Based wired home smog fire detection warning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206789013U (en) |
-
2017
- 2017-06-12 CN CN201720676216.9U patent/CN206789013U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |