CN209087096U - Nonpolarity double bus residual current formula fire detector - Google Patents
Nonpolarity double bus residual current formula fire detector Download PDFInfo
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- CN209087096U CN209087096U CN201822030210.1U CN201822030210U CN209087096U CN 209087096 U CN209087096 U CN 209087096U CN 201822030210 U CN201822030210 U CN 201822030210U CN 209087096 U CN209087096 U CN 209087096U
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Abstract
The utility model relates to fire monitoring detector technical fields, specially a kind of nonpolarity double bus residual current formula fire detector, it can substantially reduce use cost, it includes CPU module, residual current detection module, alarm module, it further include communication bus power supply module, CPU module connects residual current detection module, alarm module, communication bus power supply module, communication bus power supply module includes communication interface with pc, communication interface with pc one end passes through connection one end resistance R1, the communication interface with pc other end passes through connection one end resistance R2, the anode of resistance R1 other end connection zener diode T1, the one end capacitor C2, diode D2 cathode, diode D4 anode, the cathode of resistance R2 other end connection zener diode T1, the one end capacitor C1, diode D1 cathode, two Pole pipe D3 anode, the capacitor C1 other end, the capacitor C2 other end, diode D1 anode, diode D2 anode are grounded.
Description
Technical field
The utility model relates to fire monitoring detector technical field, specially a kind of nonpolarity double bus residual current formula
Fire detector.
Background technique
Need to install residual current formula fire detector in general industry and civil buildings, effect is to weight in building
Place is wanted because fire incident caused by circuit reason is analyzed, the electric leakage that can prepare in real-time detection circuit route becomes
Change, when electric current is abnormal in detected circuit-line, alarm signal can be issued immediately.Existing traditional product using
The mode of connection of four bus of polarized, i.e. two communication buses and two power bus are arranged independently of each other, circuit configuration
Complexity, installation maintenance is inconvenient, causes human and material resources cost too high.
Summary of the invention
In order to solve the problems, such as that existing residual current formula fire detector use cost is high, the utility model provides one kind
Nonpolarity double bus residual current formula fire detector, can substantially reduce use cost.
Its technical solution is such that a kind of nonpolarity double bus residual current formula fire detector comprising CPU mould
Block, residual current detection module, alarm module, which is characterized in that further include communication bus power supply module, the CPU module connects
The residual current detection module, alarm module, communication bus power supply module are connect, the communication bus power supply module includes upper
Machine communication interface, described communication interface with pc one end pass through connection one end resistance R1, the communication interface with pc other end
By connecting the one end resistance R2, the anode of the resistance R1 other end connection zener diode T1, the one end capacitor C2, diode D2
Cathode, diode D4 anode, the resistance R2 other end connect the cathode of the zener diode T1, the one end capacitor C1, two poles
Pipe D1 cathode, diode D3 anode, the capacitor C1 other end, the capacitor C2 other end, diode D1 anode, diode D2 anode
It is grounded, the diode D3 cathode, diode D4 cathode connect the one end resistance R301, the one end resistance R4, resistance after being connected
The one end R303, the one end capacitor C18, diode D5 anode, the one end diode D6, the diode D1, diode D2, diode
D3, diode D4 constitute rectification circuit, and the diode D5 cathode, diode D6 cathode connect the one end resistance R12, three after being connected
The collector of pole pipe Q3, the cathode of the base stage connection zener diode D8 of the triode Q3, the one end resistance R13, capacitor C8 mono-
End, the resistance R12 other end, anode, the resistance R13 other end, the capacitor C8 other end of the zener diode D8 are grounded,
The triode Q3 emitter connection the one end capacitor C24, the one end capacitor C9, voltage stabilizing chip U2 2 feet, the voltage stabilizing chip U2
3 feet connection one end capacitor C5, the one end capacitor C10, one end capacitor C11 and be VCC power output end, the capacitor C4 is another
End, the capacitor C9 other end, the capacitor C5 other end, the capacitor C10 other end, the capacitor C11 other end, voltage stabilizing chip U2 1 foot connect
Ground, the collector of the resistance R4 other end connecting triode Q1, the emitter of the triode Q1 are grounded by resistance R3, institute
State triode Q1 base stage connection the one end resistance R302, the one end capacitor C102, the one end resistance R6, the resistance R302 other end,
The capacitor C102 other end is grounded, and the resistance R6 other end is the output port connecting with the CPU module, the capacitor
The C18 other end, the resistance R303 other end connect the one end resistance R9, resistance R9 other end connection one end capacitor C101, switch
The cathode of the cathode of the anode of diode D7, switching diode D9, the switching diode D7 connects the one end resistance R7, diode
The base stage of Q2, the anode of the switching diode D9 connects the resistance R7 other end, the capacitor C101 other end and is grounded, described
Collector connection one end resistance R11, the one end capacitor C3 and the input port to be connect with the CPU module of triode Q2, institute
Resistance R11 other end connection VCC is stated, the capacitor C3 other end is grounded after being connected with the emitter of the triode Q2.
It is further characterized by the CPU module includes PIC16F684 chip U1, the resistance R6 other end connection
3 feet of the PIC16F684 chip U1, the collector of the triode Q2 connect 9 feet of the PIC16F684 chip U1；
The residual current detection module includes residual current transformer, and described residual current transformer one end connects resistance
The one end R5, the one end capacitor C103, the one end resistance R101, diode D4 anode, diode D5 cathode, the residual current transformer
The other end, the resistance R5 other end, the capacitor C103 other end, diode D4 cathode, diode D5 anode are grounded, the resistance
The R101 other end connects 2 feet of the one end resistance R201, operational amplifier U3, and 8 feet of the operational amplifier U3 connect VCC, 3 feet
The one end resistance R102 is connected, the resistance R102 other end is grounded after being connected with 4 feet of the operational amplifier U3, the operation
1 foot of amplifier connects the one end resistance R10, the resistance R201 other end, and the resistance R10 other end connects capacitor C7 mono-
It holds, 5 feet of operational amplifier U3,6 feet of the operational amplifier U3 connect the one end resistance R103, the one end resistance R11, the electricity
R103 other end ground connection is hindered, the resistance R11 other end connects 7 feet of the operational amplifier U3, the one end resistance R104, described
The resistance R104 other end connect the one end capacitor C6, the one end capacitor C3, the PIC16F684 chip U1 7 feet；
The alarm module includes the Light-emitting diode LED 1 and Light-emitting diode LED 2 of parallel arrangement, the light-emitting diodes
The anode of pipe LED1, the anode of Light-emitting diode LED 2 connect external DC power supply, the cathode connection of the Light-emitting diode LED 1
The one end resistance R105, the collector of the resistance R105 other end connecting triode Q5, the emitter ground connection of the triode Q5,
The base stage of the triode Q5 connects 11 feet of the PIC16F684 chip U1, the light emitting diode by resistance R202
Cathode connection one end resistance R8 of LED2, the collector of the resistance R8 other end connecting triode Q4, the triode Q4's
Emitter ground connection, the base stage of the triode Q4 connect 13 feet of the PIC16F684 chip U1 by resistance R203.
After the utility model, communication bus power supply module is connect by two connectivity ports with CPU module, i.e., will lead to
It interrogates line and power supply line shares, circuit configuration is simple, greatly reduces use cost.
Detailed description of the invention
Fig. 1 is Tthe utility model system schematic diagram；
Fig. 2 is communication bus power supply module circuit diagram；
Fig. 3 is CPU module circuit diagram；
Fig. 4 is residual current detection module circuit schematic；
Fig. 5 is alarm module circuitry schematic diagram；
Fig. 6 is the utility model control principle flow chart.
Specific embodiment
As shown in Fig. 1 to Fig. 6, nonpolarity double bus residual current formula fire detector comprising CPU module, remaining electricity
Detection module, alarm module, communication bus power supply module are flowed, CPU module connects residual current detection module, alarm module, leads to
Bus-powered module is interrogated, communication bus power supply module includes communication interface with pc, and communication interface with pc one end passes through connection
The one end resistance R1, the communication interface with pc other end connect zener diode by connection one end resistance R2, the resistance R1 other end
Anode, the one end capacitor C2, diode D2 cathode, the diode D4 anode of T1, the resistance R2 other end connect zener diode T1's
Cathode, the one end capacitor C1, diode D1 cathode, diode D3 anode, the capacitor C1 other end, the capacitor C2 other end, diode D1
Anode, diode D2 anode are grounded, and diode D3 cathode, diode D4 cathode connect the one end resistance R301, resistance after being connected
The one end R4, the one end resistance R303, the one end capacitor C18, diode D5 anode, the one end diode D6, diode D1, diode D2,
Diode D3, diode D4 constitute rectification circuit, diode D5 cathode, diode D6 cathode be connected after connect the one end resistance R12,
The collector of triode Q3, the base stage connection cathode of zener diode D8 of triode Q3, the one end resistance R13, the one end capacitor C8,
The resistance R12 other end, anode, the resistance R13 other end, the capacitor C8 other end of zener diode D8 are grounded, triode Q3's
Emitter connect the one end capacitor C24, the one end capacitor C9, voltage stabilizing chip U2 2 feet, 3 feet of voltage stabilizing chip U2 connect capacitor C5 mono-
End, the one end capacitor C10, the one end capacitor C11 and be VCC power output end, the capacitor C4 other end, the capacitor C9 other end, capacitor C5
The other end, the capacitor C10 other end, the capacitor C11 other end, voltage stabilizing chip U2 1 foot be grounded, the resistance R4 other end connect three poles
The emitter of the collector of pipe Q1, triode Q1 is grounded by resistance R3, and the base stage of triode Q1 connects the one end resistance R302, electricity
Hold the one end C102, the one end resistance R6, the resistance R302 other end, the capacitor C102 other end be grounded, and the resistance R6 other end is and CPU
The output port of module connection, the capacitor C18 other end, the resistance R303 other end connect the one end resistance R9, and the resistance R9 other end connects
Connect the one end capacitor C101, the anode of switching diode D7, switching diode D9 cathode, the cathode of switching diode D7 connects electricity
The base stage of the one end R7, diode Q2 is hindered, the anode of switching diode D9 connects the resistance R7 other end, the capacitor C101 other end and connects
Ground, collector connection one end resistance R11, the one end capacitor C3 and the input port to be connect with CPU module of triode Q2, resistance
The R11 other end connects VCC, and the capacitor C3 other end is grounded after being connected with the emitter of triode Q2.
CPU module includes PIC16F684 chip U1, and the resistance R6 other end connects 3 feet of PIC16F684 chip U1, three poles
9 feet of the collector connection PIC16F684 chip U1 of pipe Q2.
Residual current detection module includes residual current transformer, and residual current transformer is the detection member of earth leakage protective device
Part, for conventional component in the market, its major function is residual current (touching of the detection by the main circuit of mutual inductor iron core
The earth-fault currents such as electricity, electric leakage), and the residual current of primary circuit is transformed into the output voltage of secondary circuit, remaining electricity
Current transformer one end connection one end resistance R5, the one end capacitor C103, the one end resistance R101, diode D4 anode, diode D5 are negative
Pole, the residual current transformer other end, the resistance R5 other end, the capacitor C103 other end, diode D4 cathode, diode D5 anode
It is grounded, the resistance R101 other end connects 2 feet of the one end resistance R201, operational amplifier U3, the 8 feet connection of operational amplifier U3
VCC, 3 feet connect the one end resistance R102, and the resistance R102 other end is grounded after being connected with 4 feet of operational amplifier U3, operation amplifier
1 foot of device connects the one end resistance R10, the resistance R201 other end, and the resistance R10 other end connects the one end capacitor C7, operational amplifier
5 feet of U3,6 feet of operational amplifier U3 connect the one end resistance R103, the one end resistance R11, resistance R103 other end ground connection, resistance
The R11 other end connects 7 feet of operational amplifier U3, the one end resistance R104, and the resistance R104 other end connects the one end capacitor C6, capacitor
The one end C3, PIC16F684 chip U1 7 feet；
Alarm module includes the Light-emitting diode LED 1 and Light-emitting diode LED 2 of parallel arrangement, Light-emitting diode LED 1
Anode, Light-emitting diode LED 2 anode connect external DC power supply, wherein Light-emitting diode LED 1 is green LED lamp, as being
System operates normally lamp, and Light-emitting diode LED 2 is red LED lamp, and as system alarm lamp, the cathode of Light-emitting diode LED 1 connects
The one end connecting resistance R105, the collector of resistance R105 other end connecting triode Q5, the emitter ground connection of triode Q5, triode
The base stage of Q5 passes through 11 feet of resistance R202 connection PIC16F684 chip U1, and the cathode of Light-emitting diode LED 2 connects resistance R8
One end, the collector of resistance R8 other end connecting triode Q4, the emitter ground connection of triode Q4, the base stage of triode Q4 pass through
13 feet of resistance R203 connection PIC16F684 chip U1.
The utility model uses the accurate modulus A/D conversion in CPU module inside to the real-time prison of residual current transformer
It controls and data is judged, the situation on circuit is shown while the situation on circuit is sent to by double bus
Host computer becomes visual digital monitoring impalpable electricity consumption situation is not seen, provides for effective preventing electric fire
Comprehensive solution.
Claims (4)
1. a kind of nonpolarity double bus residual current formula fire detector comprising CPU module, residual current detection module, report
Alert module, which is characterized in that further include communication bus power supply module, the CPU module connect the residual current detection module,
Alarm module, communication bus power supply module, the communication bus power supply module includes communication interface with pc, and the host computer is logical
By connection one end resistance R1, the communication interface with pc other end is described by connection one end resistance R2 for communication interface one end
The resistance R1 other end connects anode, the one end capacitor C2, diode D2 cathode, the diode D4 anode of zener diode T1, described
The resistance R2 other end connects the cathode of the zener diode T1, the one end capacitor C1, diode D1 cathode, diode D3 anode,
The capacitor C1 other end, the capacitor C2 other end, diode D1 anode, diode D2 anode are grounded, and the diode D3 is negative
Pole, diode D4 cathode connect the one end resistance R301, the one end resistance R4, the one end resistance R303, the one end capacitor C18, two after being connected
Pole pipe D5 anode, the one end diode D6, the diode D1, diode D2, diode D3, diode D4 constitute rectification circuit,
The diode D5 cathode, diode D6 cathode connect the collector of the one end resistance R12, triode Q3, three pole after being connected
Cathode, the one end resistance R13, the one end capacitor C8, the resistance R12 other end of the base stage connection zener diode D8 of pipe Q3, institute
The anode, the resistance R13 other end, the capacitor C8 other end for stating zener diode D8 are grounded, and the emitter of the triode Q3 connects
Connect the one end capacitor C24, the one end capacitor C9, voltage stabilizing chip U2 2 feet, 3 feet of the voltage stabilizing chip U2 connect the one end capacitor C5, electricity
Hold the one end C10, the one end capacitor C11 and be VCC power output end, the capacitor C4 other end, the capacitor C9 other end, capacitor C5 are another
One end, the capacitor C10 other end, the capacitor C11 other end, voltage stabilizing chip U2 1 foot be grounded, resistance R4 other end connection three
The emitter of the collector of pole pipe Q1, the triode Q1 is grounded by resistance R3, and the base stage of the triode Q1 connects resistance
The one end R302, the one end capacitor C102, the one end resistance R6, the resistance R302 other end, the capacitor C102 other end are grounded, described
The resistance R6 other end is the output port connecting with the CPU module, and the capacitor C18 other end, the resistance R303 other end connect
The one end connecting resistance R9, the resistance R9 other end connect the one end capacitor C101, the anode of switching diode D7, switching diode D9
Cathode, the switching diode D7 cathode connection the one end resistance R7, diode Q2 base stage, the switching diode D9's
Anode connects the resistance R7 other end, the capacitor C101 other end and is grounded, and the collector of the triode Q2 connects resistance R11
One end, the one end capacitor C3 and the input port to connect with the CPU module, the resistance R11 other end connects VCC, described
The capacitor C3 other end is grounded after being connected with the emitter of the triode Q2.
2. a kind of nonpolarity double bus residual current formula fire detector according to claim 1, which is characterized in that described
CPU module includes PIC16F684 chip U1, and the resistance R6 other end connects 3 feet of the PIC16F684 chip U1, described
The collector of triode Q2 connects 9 feet of the PIC16F684 chip U1.
3. a kind of nonpolarity double bus residual current formula fire detector according to claim 2, which is characterized in that described
Residual current detection module includes residual current transformer, and described residual current transformer one end connects the one end resistance R5, capacitor
The one end C103, the one end resistance R101, diode D4 anode, diode D5 cathode, the residual current transformer other end, resistance
The R5 other end, the capacitor C103 other end, diode D4 cathode, diode D5 anode are grounded, and the resistance R101 other end connects
The one end connecting resistance R201, operational amplifier U3 2 feet, the operational amplifier U3 8 feet connection VCC, 3 feet connect resistance R102
One end, the resistance R102 other end are grounded after being connected with 4 feet of the operational amplifier U3,1 foot of the operational amplifier
The one end resistance R10, the resistance R201 other end are connected, the resistance R10 other end connects the one end capacitor C7, operational amplifier
6 feet of 5 feet of U3, the operational amplifier U3 connect the one end resistance R103, the one end resistance R11, the resistance R103 other end
Ground connection, the resistance R11 other end connect 7 feet of the operational amplifier U3, the one end resistance R104, and the resistance R104 is another
End connection the one end capacitor C6, the one end capacitor C3, the PIC16F684 chip U1 7 feet.
4. a kind of nonpolarity double bus residual current formula fire detector according to claim 2, which is characterized in that described
Alarm module includes the Light-emitting diode LED 1 and Light-emitting diode LED 2 of parallel arrangement, and the Light-emitting diode LED 1 is just
Pole, the positive of Light-emitting diode LED 2 connect external DC power supply, and the cathode of the Light-emitting diode LED 1 connects resistance R105 mono-
End, the collector of the resistance R105 other end connecting triode Q5, the emitter ground connection of the triode Q5, the triode
The base stage of Q5 connects 11 feet of the PIC16F684 chip U1 by resistance R202, and the cathode of the Light-emitting diode LED 2 connects
The one end connecting resistance R8, the collector of the resistance R8 other end connecting triode Q4, the emitter ground connection of the triode Q4, institute
The base stage for stating triode Q4 connects 13 feet of the PIC16F684 chip U1 by resistance R203.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822030210.1U CN209087096U (en) | 2018-12-05 | 2018-12-05 | Nonpolarity double bus residual current formula fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822030210.1U CN209087096U (en) | 2018-12-05 | 2018-12-05 | Nonpolarity double bus residual current formula fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087096U true CN209087096U (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822030210.1U Withdrawn - After Issue CN209087096U (en) | 2018-12-05 | 2018-12-05 | Nonpolarity double bus residual current formula fire detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN209087096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-12-05 CN CN201822030210.1U patent/CN209087096U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| AV01 | Patent right actively abandoned |
Granted publication date: 20190709 Effective date of abandoning: 20230512 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190709 Effective date of abandoning: 20230512 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |