CN105957292A - Informationized intelligent building fire monitoring system based on wireless signal transmission - Google Patents
Informationized intelligent building fire monitoring system based on wireless signal transmission Download PDFInfo
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- CN105957292A CN105957292A CN201610370144.5A CN201610370144A CN105957292A CN 105957292 A CN105957292 A CN 105957292A CN 201610370144 A CN201610370144 A CN 201610370144A CN 105957292 A CN105957292 A CN 105957292A
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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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses an informationized intelligent building fire monitoring system based on wireless signal transmission, and the system is characterized in that the system mainly consists of one or more detection devices, a wireless receiving module which is connected with the detection devices through a wireless network, a conversion module which is connected with the wireless receiving module through an RS485 bus, a microprocessor connected with the conversion module, and a monitoring room computer connected with the microprocessor. The detection devices can transmit the detected signals to the wireless receiving module through the wireless network, thereby avoiding the complex laying of circuits, and saving the cost. Meanwhile, the system employs the wireless network for signal transmission, and can prevent the electric leakage of the circuits from causing severer hazards during fire.
Description
Technical field
The present invention relates to a kind of building fire monitoring system, specifically refer to a kind of letter based on transmission of wireless signals
Breathization intelligent building fire monitoring system.
Background technology
In recent years, along with the growth of GDP, the raising of living standards of the people, people live, live, work
Place increasingly concentrate, the generation of fire incident is more frequent, and the most serious have impact on people's
Life, property safety.In order to prevent the generation of fire, it usually needs building are carried out fire hazard monitoring.At present
Building fire hazard monitoring has been the important component part of building fire-fighting technology；But the many employings of building now are traditional
Fire is monitored by distributed smoke alarm, and the transmission of this monitor mode quantity of information is limited, networking
Degree is low, it is impossible to meet the demand of modernization.
Summary of the invention
It is an object of the invention to overcome traditional building fire monitoring system quantity of information transmission limited, networking
The defect that degree is low, it is provided that a kind of information-based intelligent building fire monitoring system based on transmission of wireless signals.
The purpose of the present invention is achieved through the following technical solutions: a kind of information-based intelligence based on transmission of wireless signals
Energy building fire monitoring system, mainly by more than one detection device, by wireless network and detection device
The wireless receiving module being connected, the modular converter being connected with wireless receiving module by RS485 bus,
The microprocessor being connected with modular converter, and the Control Room computer composition being connected with microprocessor.
Further, described detection device by processing chip, respectively with process chip be connected Smoke Sensor,
Temperature sensor and signal amplification circuit, and the wireless transmitter module composition being connected with signal amplification circuit；
Described wireless transmitter module is then connected with wireless receiving module by wireless network.
Described signal amplification circuit is by amplifier P3, amplifier P4, amplifier P5, audion VT4, three
Pole pipe VT5, audion VT6, N pole emitter stage with audion VT4 after resistance R10 is connected, P
Diode D5, the N pole that then positive pole with amplifier P3 is connected after resistance R7, pole is with amplifier P3's
The diode D4 of ground connection while positive pole is connected, P pole then negative pole with amplifier P3 is connected, with two poles
The resistance R8 that pipe D4 is in parallel, positive pole is connected with the N pole of diode D5, negative pole then with amplifier P3
The electric capacity C6 that is connected of outfan, be serially connected between the colelctor electrode of VT4 and the outfan of amplifier P3
Resistance R11, negative pole is connected with the outfan of amplifier P5, positive pole then after resistance R9 with amplifier P3
The electric capacity C7 that is connected of outfan, be serially connected between the base stage of audion VT5 and the positive pole of amplifier P5
Resistance R13, the resistance R14 being serially connected between the colelctor electrode of audion VT6 and the negative pole of amplifier P5,
Two poles that P pole is connected with the colelctor electrode of audion VT5, N pole then base stage with audion VT6 is connected
Pipe D7, and P pole is connected with the base stage of audion VT4, N pole then after resistance R12 with audion
The Zener diode D6 composition that the base stage of VT6 is connected；The positive pole of described amplifier P4 and audion VT4
Colelctor electrode be connected, its negative pole then positive pole with electric capacity C7 be connected while ground connection, its outfan then with
The emitter stage of audion VT5 is connected；The base stage of described audion VT5 then with the outfan of amplifier P5
It is connected；The P pole of described diode D5 is connected with processing chip；The emitter stage of described audion VT6
Then it is connected with wireless transmitter module.
Described modular converter is made up of amplifying circuit, the change-over circuit being connected with amplifying circuit.
Described amplifying circuit, by amplifier P1, amplifier P2, audion VT1, is serially connected in amplifier P1's
Resistance R2 between positive pole and outfan, is serially connected in the negative pole of amplifier P1 and the emitter stage of audion VT1
Between resistance R1, positive pole is connected with the colelctor electrode of audion VT1, the electric capacity C1 of minus earth, with
And two poles that N pole is connected with the outfan of amplifier P1, P pole then negative pole with amplifier P2 is connected
Pipe D1 forms；The positive pole of described amplifier P2 is connected with the emitter stage of audion VT1, its outfan then
Be connected with the base stage of audion VT1, its negative pole is then connected with change-over circuit；Described amplifier P1's is negative
Chip is connected, its outfan is then connected with change-over circuit with process in pole.
Described change-over circuit is by conversion chip U, audion VT2, audion VT3, one end and conversion chip
The resistance R3 that the PWM pin of U is connected, the other end then outfan with amplifier P1 is connected, negative pole
Be connected with the RT pin of conversion chip U, electric capacity that positive pole then outfan with amplifier P1 is connected
C2, positive pole is connected with the TGEN pin of conversion chip U, negative pole then negative pole with amplifier P2 is connected
The electric capacity C3 connect, one end is connected with the negative pole of electric capacity C3, resistance R4, the P pole of other end ground connection with electricity
Hold the diode D2 that negative pole is connected, N pole is then connected of C3, string with the SW pin of conversion chip U
Resistance R5, the N pole being connected between the SS pin of conversion chip U and the colelctor electrode of audion VT3 and three poles
The diode D3 that the colelctor electrode of pipe VT3 is connected, P pole then emitter stage with audion VT2 is connected,
The resistance R6 being serially connected between the emitter stage of audion VT2 and the colelctor electrode of audion VT3, positive pole and three
The electric capacity C4 that the colelctor electrode of pole pipe VT2 is connected, negative pole then base stage with audion VT3 is connected, with
And the electric capacity that negative pole is connected with the negative pole of electric capacity C4, positive pole then colelctor electrode with audion VT3 is connected
C5 forms；The OUT pin of described conversion chip U is connected with the base stage of audion VT2；Described three poles
The base stage of pipe VT3 is connected with the negative pole of electric capacity C4, its grounded emitter, its colelctor electrode then with micro-process
Device is connected.
Described conversion chip U is the integrated chip of LT3517.
The present invention compared with the prior art, has the following advantages and beneficial effect:
(1) present invention uses RS485 bus to be transmitted signal, improves precision and the speed of signal transmission
Degree, makes the networking of the present invention and intelligence degree higher.
(2) modular converter that the present invention uses high efficiency analogue signal can be converted to digital signal, carries
Rise the signal processing efficiency of the present invention.
(3) the detection device of the present invention can be sent to wireless receiving the signal detected by wireless network
Module, it is to avoid complicated track laying, cost-effective；Meanwhile, the present invention uses wireless network transmissions to believe
Number, the line electrical leakage when breaking out of fire can be avoided to cause even more serious harm.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the structure of the detecting device schematic diagram of the present invention.
Fig. 3 is the circuit structure diagram of the modular converter of the present invention.
Fig. 4 is the structure chart of the signal amplification circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, based on transmission of wireless signals the information-based intelligent building fire monitoring system of the present invention,
Mainly by more than one detection device, the wireless receiving module being connected with detection device by wireless network,
The modular converter being connected with wireless receiving module by RS485 bus, the micro-place being connected with modular converter
Reason device, and the Control Room computer composition being connected with microprocessor.This microprocessor uses AT89C2051
Microprocessor realizes, and its P3.7, P3.4 and P3.5 pin is connected with Control Room computer.
Wherein, this detection device is for detecting smoke signal and the temperature signal of each floor, and it is arranged at often
In one floor, quantity can be configured according to number of floor levels or be actually needed.The structure of this detection device such as Fig. 2
Shown in, it is by processing chip, signal amplification circuit, and wireless transmitter module, Smoke Sensor and temperature pass
Sensor forms.This process chip uses LT3496 to process chip and realizes.This Smoke Sensor can gather building
Smoke signal in Ceng, the PWM1 pin processing chip with LT3496 is connected, its bright Sheng in preferred Zhengzhou
The MQ-2 smog sensing that Electronic Science and Technology Co., Ltd. produces realizes.This temperature sensor is then used for gathering often
Temperature signal in one floor, the PWM2 pin processing chip with LT3496 is connected, its preferred Shanghai
The SMW temperature sensor that Ke Qi finite instrument company produces realizes.The input of described signal amplification circuit
Be connected with the TG1 pin of LT3496 process chip, its outfan is then connected with wireless transmitter module.
This wireless transmitter module uses F05A wireless transmitter module, and this wireless receiving module then uses that J05B is wireless to be connect
Receive module to realize.
This modular converter high efficiency analogue signal can be converted to digital signal, as it is shown on figure 3, its by
Amplifying circuit, the change-over circuit being connected with amplifying circuit forms.
Wherein, this amplifying circuit is by amplifier P1, amplifier P2, audion VT1, resistance R1, resistance
R2, diode D1 and electric capacity C1 form；This resistance R2 is serially connected in positive pole and the outfan of amplifier P1
Between.Resistance R1 is serially connected between the negative pole of amplifier P1 and the emitter stage of audion VT1.Electric capacity C1
Positive pole be connected with the colelctor electrode of audion VT1, its minus earth.The N pole of diode D1 and amplification
The outfan of device P1 is connected, its P pole then negative pole with amplifier P2 is connected.Described amplifier P2's
Positive pole is connected with the emitter stage of audion VT1, its outfan then base stage with audion VT1 is connected,
Its negative pole is then connected with change-over circuit.The negative pole of described amplifier P1 is connected with wireless receiving module, it
Outfan is then connected with change-over circuit.This amplifying circuit can carry out distortionless amplification to signal, in order to
Change-over circuit preferably processes.
It addition, this change-over circuit is by conversion chip U, audion VT2, audion VT3, resistance R3, electricity
Resistance R4, resistance R5, resistance R6, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, diode D2
And diode D3 composition.
During connection, one end of resistance R3 is connected with the PWM pin of conversion chip U, its other end then with
The outfan of amplifier P1 is connected.The negative pole of electric capacity C2 is connected with the RT pin of conversion chip U,
Its positive pole then outfan with amplifier P1 is connected.The positive pole of electric capacity C3 and the TGEN of conversion chip U
Pin is connected, its negative pole then negative pole with amplifier P2 is connected.One end of resistance R4 and electric capacity C3
Negative pole be connected, its other end ground connection.The P pole of diode D2 is connected with the negative pole of electric capacity C3, it
N pole is then connected with the SW pin of conversion chip U.Resistance R5 is serially connected in the SS pin of conversion chip U
And between the colelctor electrode of audion VT3.The N pole of diode D3 is connected with the colelctor electrode of audion VT3,
Its P pole then emitter stage with audion VT2 is connected.Resistance R6 is serially connected in the emitter stage of audion VT2
And between the colelctor electrode of audion VT3.The positive pole of electric capacity C4 is connected with the colelctor electrode of audion VT2,
Its negative pole then base stage with audion VT3 is connected.The negative pole of electric capacity C5 is connected with the negative pole of electric capacity C4,
Its positive pole then colelctor electrode with audion VT3 is connected.
The OUT pin of described conversion chip U is connected with the base stage of audion VT2；Described audion VT3
Base stage be connected with the negative pole of electric capacity C4, its grounded emitter, its colelctor electrode then micro-with AT89C2051
The P1.2 pin of processor is connected.This modular converter can export Smoke Sensor and temperature sensor
Analogue signal is converted to digital signal and is sent to microprocessor, in order to preferably implement the present invention, and this conversion core
The integrated chip of the preferred LT3517 of sheet U realizes.
As shown in Figure 4, this signal amplification circuit is by amplifier P3, amplifier P4, amplifier P5, audion
VT4, audion VT5, audion VT6, resistance R7, resistance R8, resistance R9, resistance R10, electricity
Resistance R11, resistance R12, resistance R13, resistance R14, diode D4, diode D5, diode D6,
Diode D7, electric capacity C6 and electric capacity C7 form.
During connection, the N pole of diode D5 emitter stage with audion VT4 after resistance R10 is connected,
Its P pole then after resistance R7 positive pole with amplifier P3 be connected.The N pole of diode D4 and amplifier
Ground connection while the positive pole of P3 is connected, its P pole then negative pole with amplifier P3 is connected.Resistance R8 with
Diode D4 is in parallel.The positive pole of electric capacity C6 is connected with the N pole of diode D5, its negative pole then with put
The outfan of big device P3 is connected.Resistance R11 is serially connected in colelctor electrode and the outfan of amplifier P3 of VT4
Between.The negative pole of electric capacity C7 is connected with the outfan of amplifier P5, its positive pole then after resistance R9 with put
The outfan of big device P3 is connected.Resistance R13 is just being serially connected in the base stage of audion VT5 and amplifier P5
Between pole.Resistance R14 is serially connected between the colelctor electrode of audion VT6 and the negative pole of amplifier P5.Two poles
The P pole of pipe D7 is connected with the colelctor electrode of audion VT5, its N pole then with the base stage phase of audion VT6
Connect.The P pole of Zener diode D6 is connected with the base stage of audion VT4, its N pole is then through resistance R12
Base stage with audion VT6 is connected afterwards.
The positive pole of described amplifier P4 is connected with the colelctor electrode of audion VT4, its negative pole then with electric capacity C7
Positive pole be connected while ground connection, its outfan then emitter stage with audion VT5 be connected.Described three
The base stage of pole pipe VT5 then outfan with amplifier P5 is connected.The P pole of described diode D5 with
LT3496 processes the TG1 pin of chip and is connected.The emitter stage of described audion VT6 then with wireless transmit
Module is connected.This signal amplification circuit can carry out distortionless amplification to signal, such that it is able to make up letter
Number it is being wirelessly transferred the weakening appeared in process.
During work, detection device gathers the temperature signal in each floor and smoke signal, and passes through wireless network
Network is transferred to wireless receiving module, and this wireless receiving module is then transferred to conversion by RS485 bus signal
Module, it is concurrent that the analogue signal that this modular converter transmits detection device is converted to digital signal efficiently
Giving microprocessor, microprocessor is then sent to Control Room computer digital signal, and monitoring personnel are by monitoring
Room computer then can understand the situation of each floor in building in real time, if temperature value and smog value are very big, and table
It may happen that fire in bright floor.
As it has been described above, just can well realize the present invention.
Claims (7)
1. an information-based intelligent building fire monitoring system based on transmission of wireless signals, it is characterised in that
Mainly by more than one detection device, the wireless receiving module being connected with detection device by wireless network,
The modular converter being connected with wireless receiving module by RS485 bus, the micro-place being connected with modular converter
Reason device, and the Control Room computer composition being connected with microprocessor.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 1 is supervised
Ore-controlling Role, it is characterised in that: described detection device by processing chip, respectively with process the cigarette that is connected of chip
Mist sensor, temperature sensor and signal amplification circuit, and wireless be connected with signal amplification circuit
Penetrate module composition；Described wireless transmitter module is then connected with wireless receiving module by wireless network.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 2
Monitoring system, it is characterised in that: described signal amplification circuit is by amplifier P3, amplifier P4, amplifier
P5, audion VT4, audion VT5, audion VT6, N pole after resistance R10 with audion VT4
Emitter stage be connected, the P pole diode D5 that then positive pole with amplifier P3 is connected after resistance R7,
Ground connection while N pole is connected with the positive pole of amplifier P3, P pole then negative pole with amplifier P3 is connected
Diode D4, the resistance R8 being in parallel with diode D4, positive pole is connected with the N pole of diode D5,
The electric capacity C6 that negative pole then outfan with amplifier P3 is connected, is serially connected in colelctor electrode and the amplifier of VT4
Resistance R11 between the outfan of P3, negative pole is connected with the outfan of amplifier P5, positive pole is then through resistance
The electric capacity C7 that after R9, outfan with amplifier P3 is connected, is serially connected in base stage and the amplification of audion VT5
Resistance R13 between the positive pole of device P5, is serially connected in colelctor electrode and the negative pole of amplifier P5 of audion VT6
Between resistance R14, P pole be connected with the colelctor electrode of audion VT5, N pole is then with audion VT6's
The diode D7 that base stage is connected, and P pole is connected with the base stage of audion VT4, N pole is then through resistance
The Zener diode D6 composition that after R12, base stage with audion VT6 is connected；Described amplifier P4 is just
Connect while pole is connected with the colelctor electrode of audion VT4, its negative pole then positive pole with electric capacity C7 is connected
Ground, its outfan then emitter stage with audion VT5 is connected；The base stage of described audion VT5 then with put
The outfan of big device P5 is connected；The P pole of described diode D5 is connected with processing chip；Described three poles
The emitter stage of pipe VT6 is then connected with wireless transmitter module.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 3 is supervised
Ore-controlling Role, it is characterised in that: described modular converter is by amplifying circuit, the conversion being connected with amplifying circuit electricity
Road forms.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 4 is supervised
Ore-controlling Role, it is characterised in that: described amplifying circuit is by amplifier P1, amplifier P2, audion VT1, string
It is connected on the resistance R2 between positive pole and the outfan of amplifier P1, is serially connected in negative pole and three poles of amplifier P1
Resistance R1 between the emitter stage of pipe VT1, positive pole is connected with the colelctor electrode of audion VT1, negative pole connects
Ground electric capacity C1, and N pole is connected with the outfan of amplifier P1, P pole then with amplifier P2 bear
The diode D1 composition that pole is connected；The positive pole of described amplifier P2 is connected with the emitter stage of audion VT1
Connect, its outfan then base stage with audion VT1 is connected, its negative pole is then connected with change-over circuit；Institute
State the negative pole of amplifier P1 and process that chip is connected, its outfan is then connected with change-over circuit.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 5 is supervised
Ore-controlling Role, it is characterised in that: described change-over circuit by conversion chip U, audion VT2, audion VT3,
One end is connected with the PWM pin of conversion chip U, the other end then outfan with amplifier P1 is connected
Resistance R3, negative pole is connected with the RT pin of conversion chip U, positive pole then with the output of amplifier P1
The electric capacity C2 that is connected of end, positive pole is connected with the TGEN pin of conversion chip U, negative pole then with amplifier
The electric capacity C3 that the negative pole of P2 is connected, one end is connected with the negative pole of electric capacity C3, the resistance of other end ground connection
R4, P pole is connected with the negative pole of electric capacity C3, N pole is then connected with the SW pin of conversion chip U two
Pole pipe D2, the resistance R5 being serially connected between the SS pin of conversion chip U and the colelctor electrode of audion VT3,
N pole is connected with the colelctor electrode of audion VT3, P pole then emitter stage with audion VT2 is connected two
Pole pipe D3, the resistance R6 being serially connected between the emitter stage of audion VT2 and the colelctor electrode of audion VT3,
The electric capacity that positive pole is connected with the colelctor electrode of audion VT2, negative pole then base stage with audion VT3 is connected
C4, and negative pole is connected with the negative pole of electric capacity C4, positive pole then colelctor electrode with audion VT3 is connected
Electric capacity C5 composition；The OUT pin of described conversion chip U is connected with the base stage of audion VT2；Institute
The negative pole of the base stage and electric capacity C4 of stating audion VT3 is connected, its grounded emitter, its colelctor electrode then with
Microprocessor is connected.
A kind of information-based intelligent building fire based on transmission of wireless signals the most according to claim 6 is supervised
Ore-controlling Role, it is characterised in that: described conversion chip U is the integrated chip of LT3517.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370144.5A CN105957292A (en) | 2016-05-27 | 2016-05-27 | Informationized intelligent building fire monitoring system based on wireless signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370144.5A CN105957292A (en) | 2016-05-27 | 2016-05-27 | Informationized intelligent building fire monitoring system based on wireless signal transmission |
Publications (1)
| Publication Number | Publication Date |
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| CN105957292A true CN105957292A (en) | 2016-09-21 |
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ID=56910863
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610370144.5A Pending CN105957292A (en) | 2016-05-27 | 2016-05-27 | Informationized intelligent building fire monitoring system based on wireless signal transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142177A (en) * | 2018-10-11 | 2019-01-04 | 四川尚吕家居科技有限公司 | Oil smoke discharge supervisory systems based on RS232 bus |
-
2016
- 2016-05-27 CN CN201610370144.5A patent/CN105957292A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142177A (en) * | 2018-10-11 | 2019-01-04 | 四川尚吕家居科技有限公司 | Oil smoke discharge supervisory systems based on RS232 bus |
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Application publication date: 20160921 |