CN205850062U - A kind of gas extinguishing control system of two lines bus type - Google Patents
A kind of gas extinguishing control system of two lines bus type Download PDFInfo
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- CN205850062U CN205850062U CN201620871048.4U CN201620871048U CN205850062U CN 205850062 U CN205850062 U CN 205850062U CN 201620871048 U CN201620871048 U CN 201620871048U CN 205850062 U CN205850062 U CN 205850062U
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Abstract
The utility model discloses the gas extinguishing control system of a kind of two lines bus type, including gas gas fire-fighting controller, at least one detector, at least one input/output module and at least one alarm, by two lines bus transmission electric energy and communication signal between described gas fire-fighting controller and detector, input/output module and alarm.This utility model uses two lines bus to realize the power supply between gas fire-fighting controller and detector and communication, wiring is few, save construction and cable cost, it is prone to site operation and later maintenance, using input/output module collection to transmit the on-off model of fire-fighting link device, expansion is strong, and system design module is simplified, alarm velocity is fast, and data transmit instant.
Description
Technical field
This utility model relates to fire-fighting extinguishment control system, particularly relates to the gas extinguishing control system of a kind of two lines bus type
System.
Background technology
Fire is global safety problem, along with the construction of modern city, has the district that much can not put out a fire with water
Territory, such as archive office, machine room etc..Meanwhile, take fire suppression measures again when it is found that the condition of a fire, because it is found that cause the intensity of a fire not in time
Often it is difficult to control to the condition of a fire too greatly.Then, a kind of discovery condition of a fire timely and effectively and the quick extinction using gas control put out
System processed is arisen at the historic moment.
Conventional gas extinguishing control system is multiple types of line-drawing.Owing to connecting equipment the most relatively far apart, the gas of multiple types of line-drawing
The connecting line of body fire extinguishing system is the most, this adds increased wiring difficulty, adds cable and construction cost simultaneously.And it is multi-thread
Sexual system design complexity, once construction connects up, it is difficult to expand it again, has not as increased detector device or expansion
The new terminal unit etc. of congenerous.In sum, existing gas extinguishing control system has the disadvantages that
1. wiring is more, and difficulty of construction is big, and cable and construction cost are high, it is difficult to safeguard；
2. fixing controlled plant terminal quantity, it is impossible to extension system.
Utility model content
The purpose of this utility model is the defect existed for above-mentioned prior art, it is provided that the gas of a kind of two lines bus type goes out
Ignition control system.
The gas extinguishing control system of the two lines bus type that the utility model proposes includes: gas fire-fighting controller, at least
Individual detector, at least one input/output module and at least one alarm, it is characterised in that described gas fire-fighting controller
And by two lines bus transmission electric energy and communication signal, described extinction using gas control between detector, input/output module and alarm
Device processed passes through the second interface by first interface circuit with two lines bus transmission electric energy and communication signal, the other end of described two lines bus
Circuit and detector, input/output module and alarm transmission electric energy and communication signal, described first interface circuit includes respectively
The first transmitting-receiving code circuit and the first feedback circuit being connected between described gas fire-fighting controller and two lines bus, described second connects
Mouthful circuit is of coupled connections after including concatenation the second transmitting-receiving code circuit and the second feedback circuit of two lines bus, wherein first and second receives
Signaling circuit compiler communication square wave sends to two lines bus and receives described communication signal, described in the first and second feedback circuit responses
Communication signal.
Described first interface circuit also includes connecting described gas extinguishing control itself and two lines bus and plays the current limliting of overcurrent protection
Circuit, connection two lines bus and outside AD testing circuit play the first interface protection circuit of short-circuit protection.
Described second interface circuit connects the second interface protection electricity for overvoltage protection of two lines bus after also including series connection
Road, described communication square wave is filtered the polarity switching of rectification, polarity switching output voltage is carried out blood pressure lowering
DC-DC change-over circuit, connects the defeated of described polarity switching after described second transmitting-receiving code circuit and the series connection of the second feedback circuit
Go out end.
Described first interface circuit also includes the indicator light circuit being connected between two lines bus both positive and negative polarity, total for instruction two
Line is the most short-circuit.
Described system also include at least one emergency start-stop of being connected with described gas fire-fighting controller by two lines bus by
Button, pressure hand push button and venting do not enter display lamp.
The wire laying mode of described two lines bus includes line style, star-like, fish bone well or tree-like.
Compared with prior art, the beneficial effects of the utility model are:
1. use two lines bus to realize the power supply between gas fire-fighting controller and each controlled plant and communication, power supply and communication
Sharing a bus, wiring is few, saves construction and cable cost, it is easy to site operation and later maintenance；
2. use input/output module transmission to gather the on-off model of fire-fighting link device, and be transferred to extinction using gas
Controller, make complexity circuit module simplify, it is easy to the expansion of system, can according to field demand easily by input/defeated
Go out module extension system；
3. using special communications protocol, alarm velocity is fast, and data transmit instant, and system design module is simplified, and saves
Cost, expansion is strong.
Accompanying drawing explanation
Fig. 1 is this utility model system construction drawing；
Fig. 2 is the circuit diagram of this utility model first interface circuit；
Fig. 3 is the circuit diagram of this utility model the second interface circuit.
Detailed description of the invention
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the gas extinguishing control system of the two lines bus type that the utility model proposes includes: gas extinguishing control
Device and at least one detector, input/output module, audible-visual annunciator, emergency start-stop press-button, pressure hand push button and venting are not
Enter the controlled plants such as display lamp.
Gas fire-fighting controller by first interface circuit and two lines bus transmission electric energy and communication signal, another of two lines bus
Hold by the second interface circuit and detector, input/output module, audible-visual annunciator, emergency start-stop press-button, pressure hand push button
Transmission electric energy and the communication signals such as display lamp is not entered with venting.Wherein, input/output module is used for connecting outside fire-fighting link dress
Put such as the equipment such as exhaust smoke valve, blower fan.The wire laying mode of two lines bus includes line style, star-like, fish bone well or tree-like.
Detector detects the condition of a fire, reports gas fire-fighting controller by two lines bus, and gas fire-fighting controller is by defeated
Enter/output module controls the equipment such as the exhaust smoke valve in fire district, blower fan and puts out a fire, and control sound and light alarm and provide alarm communication system
Signal.Emergency start-stop press-button is installed on outlet or the fire-fighting center of preventing gas flame range, when operator on duty confirms the condition of a fire, can press in time
Lower emergency start button, provides the communication signal starting steel cylinder, starts extinguishing device by controller to controller；Spray at gas
Press emergency stop push button before putting can terminate spurting.When in protection zone, gas starts to spurt, controller controls to put by two lines bus
Gas does not enter display lamp and lights, and prompting related personnel is prohibited from entering protection zone, in order to avoid damaging.When needing maintenance in protection zone
Time, press pressure hand push button and make gas fire-fighting controller force hand push button, prevent occurring gas to spurt when maintenance and cause
Security incident.
First interface circuit includes the first transmitting-receiving code being connected between described gas fire-fighting controller and two lines bus
Circuit and the first feedback circuit, the second interface circuit include concatenation after be of coupled connections two lines bus second transmitting-receiving code circuit and second
Feedback circuit, wherein the first and second transmitting-receiving code circuit compiler communication square waves send to two lines bus and reception communication signal, and first
The communication signal received with the second feedback circuit response.
In one embodiment, the first interface circuit of gas fire-fighting controller and two lines bus is connected as in figure 2 it is shown, first connects
Mouth circuit includes: the first transmitting-receiving code circuit, the first feedback circuit, current-limiting circuit, first interface protection circuit and indicator light circuit.
First transmitting-receiving code circuit is connected with CPU element and the two lines bus of gas fire-fighting controller, for by two lines bus root
The instruction assigned according to gas fire-fighting controller, the detector to being connected on two lines bus, input/output module, audible-visual annunciator,
Emergency start-stop press-button, pressure hand push button and venting do not enter the communication signals such as controlled plant transmission control command such as display lamp, with
Time receive the communication signal that sends of controlled plant.
First transmitting-receiving code circuit includes: 24V control circuit, 5V control circuit and 0V control circuit.
24V control circuit includes: resistance R1, R2, R32, R33, R35, R42, R43, R61, R62, NPN type triode Q6,
Q8, Q9, PNP type triode Q7, Q22, diode D11；
The CPU element being connected to gas fire-fighting controller after resistance R42 is in parallel with resistance R43 controls mouth line F24V1, resistance
The other end of R42 is connected with the base stage of audion Q8, the grounded emitter of audion Q8, and colelctor electrode passes through resistance R2 ground connection, electricity
The other end of resistance R43 is connected by the colelctor electrode of resistance R32 and audion Q8, meanwhile, and the colelctor electrode of audion Q8 and audion
The base stage of Q6 connects, and is connected ground connection after a resistance R1, resistance R43 and resistance R32 between resistance R42 and the connecting line of audion Q8
Between connect the input voltage of a 5V, the colelctor electrode of audion Q6 by the base stage of the resistance R35 and audion Q7 of series connection and
The colelctor electrode of audion Q22 connects, and the emitter stage of audion Q22 is connected with the DC source of 24V, and the transmitting of audion Q22
It is connected with a resistance R33 between pole and colelctor electrode, between emitter stage and the base stage of audion Q22, is connected with a resistance R61, audion
The base stage of Q22 is connected with the emitter stage of audion Q7 and the colelctor electrode of audion Q9, the colelctor electrode of audion Q7 and audion Q9
Base stage connect after be connected by the positive pole of a resistance R62 and diode D11, the emitter stage of audion Q9 is connected to resistance R62
And between the connecting line of diode D11, the negative pole of diode D11 is connected on the positive L+ of bus.
5V control circuit 212 includes: resistance R27, R34, R41, R44, R46, R47, R48, R73, NPN type triode Q13,
Q14, Q16, PNP type triode Q15, diode D13, D14, D15, stabilivolt ZD2；
The CPU element that the base stage of audion Q13 is connected to gas fire-fighting controller by the resistance R34 of a series connection controls mouth
Line F5V1, emitter stage be connected with the emitter stage of audion Q14 after ground connection, colelctor electrode passes through after being connected with the base stage of audion Q14
The resistance R48 and resistance R41 of series connection are connected to control mouth line F5V1, input the direct current of 5V between the connecting line of resistance R48 and R41
Voltage, the colelctor electrode of audion Q14 is connected by the base stage of resistance R47 and the audion Q15 of series connection；The base stage of audion Q14
Being connected with its emitter stage also by a resistance R46, and emitter stage is connected with 24V DC voltage, colelctor electrode is divided into two-way, a road with
The positive pole of one diode D13 is connected after connecting and is connected with the base stage of audion Q16 after a resistance R27, separately leads up to a resistance
The positive pole of R44 and diode D14 is connected with the negative pole of stabilivolt ZD2 after being connected, and the positive pole of stabilivolt ZD2 is with audion Q16's
Colelctor electrode connects, and the emitter stage of audion Q16 is born L-with bus and is connected；It is connected one between the emitter stage of audion Q16 and base stage
Resistance R73, the negative pole of stabilivolt ZD2 is connected with the negative pole of diode D15, and the negative pole of diode D15 is connected on the positive L+ of bus.
0V control circuit includes: resistance R54, R55, R57, R58, R59, R67, R68, R69, R70, R71, R74, R75, three
Pole pipe Q20, Q21, Q24, Q25；
The CPU element that the base stage of audion Q24 is connected to gas fire-fighting controller by resistance R54 controls mouth line F0V1,
The grounded emitter of audion Q24, colelctor electrode connects the DC input voitage of a 5V, 5V DC input voitage by resistance R57
Being connected a resistance R68 with between control mouth line F0V1, the colelctor electrode of audion Q24 is connected with the base stage of audion Q25, audion
The grounded emitter of Q25, colelctor electrode is connected by the base stage of resistance R55 and audion Q20, and the base stage of audion Q20 passes through one
Resistance R69 is connected to the DC input voitage end of 5V with emitter stage after being connected, the colelctor electrode of audion Q20 is divided into two-way, a road
A logical resistance R74 ground connection, the positive pole of a resistance R67 and diode D12 of separately leading up to is connected, the negative pole of diode D12 and three
The base stage of pole pipe Q21 connects, and the base stage of audion Q21 is connected to bus after being connected with its emitter stage by a resistance R75 and bears L-
On, the colelctor electrode of audion Q21 is connected to one end of resistance R71 Yu R57 of parallel connection, the other end of resistance R71 and R57 in parallel
It is connected on the positive L+ of bus after being connected with resistance R70, R58 in parallel.
First feedback circuit is of coupled connections with CPU element and the two lines bus of gas fire-fighting controller, is used for passing through two lines bus
Each controlled plant on two lines bus sends the communication signal that feedback signal response controlled plant sends.
First feedback circuit includes: resistance R15, R45, R53, R63, R64, R65, R66, R72, RJ6, varistor DZ3,
NPN type triode Q17, PNP type triode Q23, operational amplifier U2-A；
The emitter stage of audion Q17 is connected with the positive pole of diode D16, and the negative pole of diode D16 is connected to the positive L+ of bus
On, the base stage of audion Q17 is connected with the positive pole of the diode D14 in 5V control circuit, and the colelctor electrode of audion Q17 connects one
Being divided into two-way after resistance R53, a road is connected with the base stage of audion Q23 after connecting a resistance R64, leads up to a resistance R45
After being connected with the emitter stage of audion Q23, the direct-current input power supplying with 24V is connected, and the emitter stage of audion Q23 is also by resistance
The inverting input of R15 and operational amplifier U2-A passes through electricity by resistance RJ6 ground connection, the colelctor electrode of audion Q23 after being connected
The in-phase input end of resistance R66 and operational amplifier U2-A be connected after resistance R65 in parallel and electric capacity C19 ground connection；Computing is put
The outfan of big device U2-A is divided into two-way, and a resistance R63 and 5V DC voltage input end of leading up to is connected, and another road connects one
Being divided into three tunnels after resistance R72, lead up to a varistor DZ3 ground connection, a road is connected with the positive pole of diode D3, diode D3
Negative pole be connected to 5V DC voltage input end, a road is connected with the CPU element I/O mouth FK1 of gas fire-fighting controller, receive two
Controlled plant in bus or the feedback signal of input/output module.
Current-limiting circuit is connected with CPU element and the two lines bus of gas fire-fighting controller, as overcurrent protection, total when detecting
During line short circuit, control bus-off.
Current-limiting circuit includes: resistance R3, R49, R50, R51, R52, R76, electric capacity C2, C23, NPN type triode Q18,
Q19, diode D10, P-channel metal-oxide-semiconductor Q12, stabilivolt ZD1；
The base stage of audion Q18 is divided into two-way by resistance R51, and a road controls with the CPU element of gas fire-fighting controller
Mouthful line GNDC1 connects, and a resistance R52 of leading up to connects the DC input voitage end of a 5V, the base stage of audion Q18 also by
Resistance R3 in parallel and electric capacity C2 ground connection, the grounded emitter of audion Q18, the colelctor electrode unidirectional current by resistance R50 Yu 24V
Source connects, and is also associated with electric capacity C23 and stabilivolt ZD1, the stabilivolt of parallel connection between the emitter and collector of audion Q18
The positive pole of ZD1 is connected with emitter stage, audion Q18 emitter stage the most also emitter stage with audion Q19 be connected after pass through
Resistance R49 is connected with the source electrode of metal-oxide-semiconductor Q12, after the colelctor electrode of audion Q18 the most also colelctor electrode with audion Q19 is connected
Being connected with the grid of metal-oxide-semiconductor, the base stage of audion Q19 is connected by the source electrode of a resistance R76 and metal-oxide-semiconductor Q12, metal-oxide-semiconductor Q12's
Drain electrode is connected with the negative pole of diode D10, and the positive pole of diode D10 is born L-with bus and is connected.
First interface protection circuit is connected with two lines bus and outside AD testing circuit, and detection bus is the most short-circuit, carries out short
Road is protected.
First interface protection circuit includes: resistance RJ1, RJ2, RJ3, RJ4, electric capacity C21, C22, stabilivolt RV1, RV2, wink
State suppression diode ZD4, ZD5, ZD6；
One end of resistance RJ1 L+ positive with bus is connected, and the other end is divided into two-way, lead up to parallel connection resistance RJ2, electric capacity
C22, stabilivolt RV1 ground connection, another road is connected with the port L1ADC1 of outside AD testing circuit；One end of resistance RJ2 and bus
Negative L-connects, and the other end is divided into two-way, leads up to the resistance RJ4 of parallel connection, electric capacity C21, stabilivolt RV2 ground connection, another road with
It is connected with the port L1ADC0 of outside AD testing circuit；It is connected in parallel on bus with ZD3 after Transient Suppression Diode ZD4 and ZD5 series connection
Positive L+ and bus are born between L-, the connecting line ground connection between Transient Suppression Diode ZD4 and ZD5.
Indicator light circuit is connected between two lines bus both positive and negative polarity, is used for indicating two lines bus the most short-circuit.
Indicator light circuit includes: resistance R60 and LED 2；After resistance R60 and LED 2 series connection
It is connected to the positive L+ of bus and bus is born between L-.
Wherein, F24V1, F5V1, F0V1 are the control mouth line of the CPU element of gas fire-fighting controller, by different groups
Logical according to bus protocol control circuit output different wave, thus the transmitting-receiving code completing gas fire-fighting controller controls, with
Control other equipment being connected with bus.
Fig. 3 is the circuit diagram of the second interface circuit, and the second interface circuit includes: the second feedback circuit, the second transmitting-receiving code electricity
Road, DC-DC change-over circuit, polarity switching, the second interface protective circuit and 0V testing circuit.
Second feedback circuit is manually pressed with detector, input/output module, audible-visual annunciator, emergency start-stop press-button, pressure
Button and venting do not enter the controlled plant electrical connections such as display lamp, after the second transmitting-receiving code circuit and the second feedback circuit series coupled connect
Being connected with DC-DC change-over circuit, polarity switching and 0V testing circuit, the second interface protective circuit is connected on two lines bus,
Code is received and dispatched with DC-DC change-over circuit and the second feedback circuit and second after polarity switching and the series connection of the second interface protective circuit
Circuit connects.Second transmitting-receiving code circuit to gas fire-fighting controller transmission communication signal, receives extinction using gas by two lines bus
After the communication signal of controller, the communication signal of the second feedback circuit response gas fire-fighting controller is also sent out by two lines bus
Feedback signal.Polarity switching is to the second transmitting-receiving code circuit and the communication signal that sends of the second feedback circuit and feedback signal
Signal square wave is filtered rectification.DC-DC change-over circuit on two lines bus after the second interface protection and polarity switching
Voltage carries out blood pressure lowering.
Second interface protective circuit is used for overvoltage protection, including: resistance R1, R2, R3 and stabilivolt DZ1；Resistance R1, R2 and
It is connected to the positive L+ of bus after stabilivolt DZ1 series connection and bus is born between L-.
Polarity switching includes: electric capacity C1, C2 and a rectifier bridge；Rectifier bridge include four diode D51, D52,
D53, D54, with diode D53, D54 parallel connection connect after diode D51, D52 series connection, and the positive pole of diode D51 and two poles
The positive pole of pipe D54 connects, and the negative pole of diode D52 is connected with the negative pole of diode D53；Connection between diode D51 and D52
Line L+ positive with bus is connected, and the connecting line between diode D53 and D54 is divided into two-way, leads up to electric capacity C2 ground connection, another road
Bearing L-with bus to be connected, the connecting line between diode D51 and D54 is divided into two-way, a road ground connection, separately lead up to electric capacity C1 with
The positive L+ of bus connects, and the connecting line between diode D52 and D53 is divided into three tunnels, leads up to a resistance R3 ground connection, a road with
DC-DC change-over circuit connects, and a road is connected with the second feedback circuit and the second transmitting-receiving code circuit.
DC-DC change-over circuit includes: resistance R3, R4, electric capacity C5, C6, C7, C8, diode D5, D6, and low pressure difference linearity is steady
Depressor U1；
The negative pole of diode D6 is connected with the positive pole of diode D5, and connecting line therebetween and polarity switching
Connecting line between diode D52 and D53 connects, and the negative pole of diode D5 is divided into two-way by after a resistance R4, and a road is with steady
The input VI of depressor U1 connects, and leads up to the electric capacity C5 of parallel connection and C6 ground connection, and the outfan VOUT of manostat U1 connects one
The input voltage of 3.3V, electric capacity C7, C8 ground connection the most in parallel, the GND end ground connection of manostat；The positive pole of diode D6 with
0V testing circuit connects.
Second feedback circuit includes: resistance R9, R11, R12, NPN type triode Q1, Q4, electric capacity C4, C12, C13, two poles
Pipe D7；
After electric capacity C12 is in parallel with resistance R11, one end is connected with feedback signal incoming end FK port, receives controlled plant and gives
The feedback signal gone out, the other end is connected with the base stage of audion Q1, the colelctor electrode of audion Q1 and two poles of polarity switching
Connecting line between pipe D52, D53 connects, and emitter stage is divided into two-way, leads up to resistance R9 ground connection, separately leads up to resistance R12
Being connected with the base stage of audion Q4, the base stage of audion Q4 passes through electric capacity C4 ground connection, the grounded emitter of audion Q4, colelctor electrode
After being connected with the base stage of audion Q1, the positive pole with diode D7 is connected, and the negative pole of diode D7 passes through electric capacity C13 ground connection.
Second transmitting-receiving code circuit includes: resistance R5, R6, R7, R8, NPN type triode Q2, electric capacity C11, C14, stabilivolt
ZD1；
The negative pole of the colelctor electrode of audion Q2 and the diode D7 of the second feedback circuit connects, simultaneously by resistance R8 and
The DC input voitage of 3.3V connects, the grounded emitter of audion Q2, and base stage is divided into two-way, a-road-through by after a resistance R7
Crossing electric capacity C14 and the resistance R6 ground connection of parallel connection, a road is connected with the positive pole of stabilivolt ZD1, and the negative pole of stabilivolt ZD1 is in parallel
Resistance R5 and electric capacity C11 after and diode D52 and D53 of polarity switching between connecting line be connected.
0V testing circuit includes: resistance R21, R22, R24, PNP type triode Q5, electric capacity C24；
The base stage of audion Q5 is divided into two-way, lead up to parallel connection resistance R21 and electric capacity C24 Yu 3.3V direct current input
Voltage connects, and a road is connected with the positive pole of the diode D6 of DC-DC change-over circuit, the emitter stage of audion Q5 and the direct current of 3.3V
Input voltage connects, and colelctor electrode is divided into two-way, leads up to resistance R24 ground connection, and resistance R22 of leading up to is connected with port R0V.
The CPU element of gas fire-fighting controller passes through first interface circuit and two lines bus and the second interface circuit with each
Controlled plant connects, and is communicated with one another by feedback circuit and transmitting-receiving code circuit, reaches to detect the condition of a fire and controls the function of extinction using gas.
First interface circuit is controlled by gas fire-fighting controller by main control module, makes EBI produce three electricity
Flat, respectively 24V, 5V, 0V, is combined by three kinds of level logics, two lines bus will produce the communication waveform of sequence.First interface
Protection circuit is connected with outside AD testing circuit, and the detection positive L+ of bus and bus are born between L-the most short-circuit, if short circuit being detected,
CPU element will send corresponding communication signal by GNDC1 end and close closed bus, thus reach to protect the purpose of bus.Detector
24V voltage in bus is converted into detector running voltage 3.3V by DC-DC change-over circuit, powers to detector.
This utility model uses two lines bus to realize the power supply between gas fire-fighting controller and each controlled plant and communication, supplies
Electricity and communication share a bus, and wiring is few, saves construction and cable cost, brings pole to site operation and later maintenance
Big facility, uses input/output module transmission to gather the on-off model of fire-fighting link device simultaneously, and is transferred to gas and goes out
Fire controller, it is easier to the expansion of system, those skilled in the art can pass through input/output module easily according to field demand
Extension system function.Native system uses special communications protocol, and alarm velocity is fast, and data transmit instant, system design module letter
Dan Hua, cost-effective, expansion is strong.
Above-described embodiment is merely to illustrate detailed description of the invention of the present utility model.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the concept of the premise utility, it is also possible to make some deformation and change, this
A little deformation and change all should belong to protection domain of the present utility model.
Claims (6)
1. a gas extinguishing control system for two lines bus type, including gas fire-fighting controller, at least one detector, at least one
Individual input/output module and at least one alarm, it is characterised in that described gas fire-fighting controller and detector, input/defeated
Going out by two lines bus transmission electric energy and communication signal between module and alarm, described gas fire-fighting controller passes through first interface
Circuit and two lines bus transmission electric energy and communication signal, the other end of described two lines bus is by the second interface circuit and detector, defeated
Entering/output module and alarm transmission electric energy and communication signal, described first interface circuit includes being connected to described gas
The first transmitting-receiving code circuit and the first feedback circuit between Fire extinguisher and two lines bus, described second interface circuit includes concatenation
After be of coupled connections the second transmitting-receiving code circuit and the second feedback circuit of two lines bus, wherein the first and second transmitting-receiving code circuit compilers lead to
News square wave sends to two lines bus and receives described communication signal, communication signal described in the first and second feedback circuit responses.
2. gas extinguishing control system as claimed in claim 1, it is characterised in that described first interface circuit also includes: even
Connect described gas extinguishing control itself and two lines bus and play the current-limiting circuit of overcurrent protection, connect two lines bus and outside AD testing circuit rises
The first interface protection circuit of short-circuit protection.
3. gas extinguishing control system as claimed in claim 1, it is characterised in that described second interface circuit also includes: string
Connect second interface protective circuit for overvoltage protection of two lines bus after connection, described communication square wave is filtered the pole of rectification
Property change-over circuit, polarity switching output voltage is carried out the DC-DC change-over circuit of blood pressure lowering, described second transmitting-receiving code circuit and
The outfan of described polarity switching is connected after second feedback circuit series connection.
4. gas extinguishing control system as claimed in claim 2, it is characterised in that described first interface circuit also includes series connection
Indicator light circuit between two lines bus both positive and negative polarity, is used for indicating two lines bus the most short-circuit.
5. gas extinguishing control system as claimed in claim 1, it is characterised in that described system also include by two lines bus with
At least one emergency start-stop press-button, pressure hand push button and venting that described gas fire-fighting controller connects do not enter display lamp.
6. the gas extinguishing control system as described in any one of claim 1 to 5, it is characterised in that the wiring of described two lines bus
Mode includes line style, star-like, fish bone well or tree-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871048.4U CN205850062U (en) | 2016-08-10 | 2016-08-10 | A kind of gas extinguishing control system of two lines bus type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871048.4U CN205850062U (en) | 2016-08-10 | 2016-08-10 | A kind of gas extinguishing control system of two lines bus type |
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| CN205850062U true CN205850062U (en) | 2017-01-04 |
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| CN201620871048.4U Active CN205850062U (en) | 2016-08-10 | 2016-08-10 | A kind of gas extinguishing control system of two lines bus type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401337A (en) * | 2018-02-01 | 2018-08-14 | 江门市敏华电器有限公司 | A kind of centralized control type lamps and lanterns of two lines bus interface |
| CN109389796A (en) * | 2018-12-05 | 2019-02-26 | 无锡蓝天电子股份有限公司 | A kind of nonpolarity double bus temp.-measuring type fire detector |
| CN109389798A (en) * | 2018-12-05 | 2019-02-26 | 无锡蓝天电子股份有限公司 | A kind of nonpolarity double bus residual current formula fire detector |
-
2016
- 2016-08-10 CN CN201620871048.4U patent/CN205850062U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401337A (en) * | 2018-02-01 | 2018-08-14 | 江门市敏华电器有限公司 | A kind of centralized control type lamps and lanterns of two lines bus interface |
| CN109389796A (en) * | 2018-12-05 | 2019-02-26 | 无锡蓝天电子股份有限公司 | A kind of nonpolarity double bus temp.-measuring type fire detector |
| CN109389798A (en) * | 2018-12-05 | 2019-02-26 | 无锡蓝天电子股份有限公司 | A kind of nonpolarity double bus residual current formula fire detector |
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