CN105445595B - A kind of fire hazard monitoring detection device - Google Patents
A kind of fire hazard monitoring detection device Download PDFInfo
- Publication number
- CN105445595B CN105445595B CN201410393851.7A CN201410393851A CN105445595B CN 105445595 B CN105445595 B CN 105445595B CN 201410393851 A CN201410393851 A CN 201410393851A CN 105445595 B CN105445595 B CN 105445595B
- Authority
- CN
- China
- Prior art keywords
- diode
- resistance
- detector
- triode
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to fire hazard monitoring technical field, specially a kind of fire hazard monitoring detection device, it can easily detect to leak electricity, the generation of effective fire preventing, without externally fed, extension and in-site installation are convenient, it includes controller, controller connects detector by bus, detector connects current transformer, controller includes controller CPU, a fuse P5 other ends connectivity port T of device and detector in order to control, an input terminal of connectivity port T connection voltage comparators LM399, another input terminal connection resistance R15 of voltage comparator LM399, R14 one end, the resistance R15 other ends connect power supply, the electrical fuses P2 other ends another of device and detector connectivity port T+ in order to control.
Description
Technical field
The present invention relates to fire hazard monitoring technical field, is specially a kind of fire hazard monitoring detection device.
Background technology
With stepping up for rapid economic development and living standard, the usage amount of various electrical equipments and household electrical appliance is steep
Increase, the quantity of electrical fire accident also increases severely therewith, in general industry with often occurring because of circuit-line in civil buildings
Fire caused by electric leakage or short circuit etc., it is therefore desirable to carry out fire hazard monitoring, general detector Effect on Detecting is undesirable, prevention
Effect is undesirable, it is necessary to which exterior scene power supply, extension and in-site installation are all inconvenient.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of fire hazard monitoring detection device, it can easily be detected
Electric leakage, the generation of effective fire preventing, without externally fed, extension and in-site installation are convenient.
Its technical solution is such：A kind of fire hazard monitoring detection device, it includes controller, it is characterised in that described
Controller connects detector by bus, and the detector connects current transformer, and the controller includes controller CPU, institute
State the moon that control circuit CPU connection transistors UNL2003, the transistor UNL2003 pass through diode V9 connection diodes V15
Pole, the base stage of triode V14, the collector of the triode V14 connect resistance R17, diode V24 one end, the electricity respectively
Resistance R17, the diode V24 other ends connect fuse P5 one end after being connected, the fuse P5 other ends for the controller with
One connectivity port T- of the detector, an input terminal of connectivity port T- connection voltage comparators LM399, the voltage
Another input terminal connection resistance R15, R14 one end of comparator LM399, the resistance R15 other ends connect power supply, the electricity
Hinder R14 other ends ground connection, the output terminal connection controller CPU of the voltage comparator LM399, the anode of the diode V15
Connect the cathode of diode V20, the base stage of the anode difference connecting triode V22 of the diode V20, resistance R4 one end, institute
State the base stage of the emitter connecting triode V8 of triode V22, the collection of the resistance R4 other ends and described triode V22, V8
Electrode connects fuse P8 one end after being connected, the fuse P8 other ends connect power supply, the emitter of the triode V8 with
The emitter of the triode connects fuse P2 one end after being connected, the fuse P2 other ends for the controller with it is described
Another connectivity port T+ of detector.
It is further characterized by, and the detector passes through resistance R7 including detection circuit CPU, the detection circuit CPU
Collector connection resistance R2 one end of connecting triode T4, the triode T4, the resistance R2 other ends connection diode V1
Cathode, the anode of V3, resistance R5 one end, the resistance R5 other ends are grounded after connecting resistance R6, diode V5 respectively, resistance
The cathode that the R5 other ends are also connected with detection circuit CPU, the diode V3 connects capacitance C1, C3, the one of resistance R8, R10 respectively
End, capacitance C1, C3 other end ground connection, the base stage of resistance R8, R10 other end difference connecting triode T1, collector,
Ground connection, emitter are grounded after connecting capacitance C2, C4 respectively after the base stage connection diode V4 of the triode T1, the diode
The cathode of the anode connection diode V2 of V1, the plus earth of the diode V2, the anode of the diode V1 and described two
The junction of the cathode of pole pipe V2 is the connectivity port of the detector and the controller；
The detection circuit CPU connections current transformer interface circuit, the current transformer interface circuit include reverse
Diode V10, the V11 being connected in parallel, the both ends that described diode V10, V11 are connected in parallel connect the detection circuit respectively
CPU, interface I3, the current transformer connecting interface I3；
The controller connects multiple detectors, and each detector connects the current transformer；
Plastic front board is set outside the detector, conducting silica gel key is set on the plastic front board.
After adopting the structure of the invention, current transformer is measured the data of circuit-line and is transferred to controller by detector,
Controller judges whether to reach alarming value, it can easily detect to leak electricity, the generation of effective fire preventing, microcontroller control
Triode V22, V14 so that the voltage at fuse P2 is transferred to detector, realizes that detector is supplied using controller home loop
Electricity, detector are convenient without externally fed, extension and in-site installation.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 device electrical block diagrams in order to control；
Fig. 3 is detector circuit structure diagram；
Communications protocol of the Fig. 4 between detector and controller.
Embodiment
As shown in Figure 1, a kind of fire hazard monitoring detection device, it includes controller 1, and controller 1 is connected multiple by bus
Detector 2, can at most connect 250 detectors 2, be conducive to large scale system and use each detector 2 connection current transformer
3, a controller can monitor many places circuit, the generation of further fire preventing at the same time, and the outside of detector 2 sets plastic cover
Plate, sets conducting silica gel key on plastic front board, and feel is good, and service life is longer, and the word on button uses laser carving technology,
Word is not easy to be rubbed bad.
As shown in Figure 2, controller includes controller CPU, control circuit CPU connection transistor UNL2003, transistor
UNL2003 connects the base stage of the cathode of diode V15, triode V14, the collector of triode V14 by diode V9 connections
Resistance R17, diode V24 one end are connected respectively, resistance R17, the diode V24 other ends connect fuse P5 one end after being connected,
The fuse P5 other ends connectivity port T- of device and detector, connectivity port T- connection voltage comparators LM399 in order to control
An input terminal, another input terminal connection resistance R15, R14 one end of voltage comparator LM399, the resistance R15 other ends connect
Power supply, supply voltage 24V are connect, the resistance R14 other ends are grounded, the output terminal connection controller CPU of voltage comparator LM399,
The cathode of the anode connection diode V20 of diode V15, the base stage of the anode difference connecting triode V22 of diode V20, electricity
Hinder R4 one end, the base stage of the emitter connecting triode V8 of triode V22, the current collection of the resistance R4 other ends and triode V22, V8
Fuse P8 one end, fuse P8 other ends connection power supply, the emitter of triode V8 and the hair of triode are connected after being extremely connected
Emitter-base bandgap grading connects fuse P2 one end after being connected, the fuse P2 other ends another of device and detector connectivity port T+ in order to control,
The connectivity port T+ ends that controller CPU controls triode V14, V22 make are in+24V, 0V or+12V, ensure the confession of detector 2
Electricity, the electric current flowed out by sampling resistor R17 samplings at the T- of connectivity port are sent into voltage comparator LM399, voltage comparator
Another input terminal input reference voltage of LM399, exports after relatively and gives controller CPU, and controller CPU detections are higher than base
The time of quasi- voltage（That is pulsewidth width）, to determine the state of detector, judge whether that circuit has electric leakage, sampling comparison voltage is
24V*0.1/24.1 sampling resistor is 10 ohm.
As shown in Figure 3, detector includes detection circuit CPU, and detection circuit CPU is by resistance R7 connecting triodes T4, and three
Collector connection resistance R2 one end of pole pipe T4, cathode, anode, the resistance R5 mono- of V3 of resistance R2 other ends connection diode V1
End, the resistance R5 other ends are grounded after connecting resistance R6, diode V5 respectively, and the resistance R5 other ends are also connected with detection circuit CPU, and two
The cathode of pole pipe V3 connects capacitance C1, C3, one end of resistance R8, R10, capacitance C1, C3 other end ground connection, resistance R8, R10 respectively
The base stage of other end difference connecting triode T1, collector, the base stage of triode T1 connect ground connection, emitter point after diode V4
It Lian Jie be grounded after capacitance C2, C4, the cathode of the anode connection diode V2 of diode V1, the plus earth of diode V2, two
The junction of the anode of pole pipe V1 and the cathode of diode V2 is the connectivity port of detector and controller；Detection circuit CPU connects
Current transformer interface circuit is connect, current transformer interface circuit includes diode V10, the V11 being connected in antiparallel, diode
The both ends that V10, V11 are connected in parallel connect detection circuit CPU, interface I3, the both ends that diode V10, V11 are connected in parallel point respectively
It Lian Jie not be grounded after capacitance C32, C33, resistance is set between wherein one end that diode V10, V11 are connected in parallel and interface I3
RP3, current transformer connecting interface I3.
Communications protocol of the Fig. 4 between detector 2 and controller 1, solves the problems, such as that star-like wiring communication is unstable.
Claims (4)
1. a kind of fire hazard monitoring detection device, it includes controller, it is characterised in that the controller is connected by bus and detected
Device, the detector connect current transformer, and the controller includes controller CPU, the control circuit CPU connections transistor
UNL2003, the transistor UNL2003 are described by the cathode of diode V9 connection diodes V15, the base stage of triode V14
The collector of triode V14 connects resistance R17, diode V24 one end, the resistance R17, diode V24 other end phases respectively
Fuse P5 one end is connected after even, the fuse P5 other ends are a connectivity port of the controller and the detector
An input terminal of T-, connectivity port T- connection voltage comparator LM399, another input of the voltage comparator LM399
End connection resistance R15, R14 one end, the resistance R15 other ends connect power supply, the resistance R14 other ends ground connection, the electricity
Press the cathode of the anode connection diode V20 of output terminal connection the controller CPU, the diode V15 of comparator LM399, institute
State base stage, resistance R4 one end of the anode difference connecting triode V22 of diode V20, the emitter connection of the triode V22
The base stage of triode V8, the resistance R4 other ends are connected fuse P8 mono- after being connected with the collector of described triode V22, V8
End, the fuse P8 other ends connect power supply, after the emitter of the triode V8 is connected with the emitter of the triode
Fuse P2 one end is connected, the fuse P2 other ends are the controller and another connectivity port T of the detector
+, the detector passes through resistance R7 connecting triodes T4, the triode including detection circuit CPU, the detection circuit CPU
Collector connection resistance R2 one end of T4, cathode, anode, the resistance R5 mono- of V3 of the resistance R2 other ends connection diode V1
End, the resistance R5 other ends are grounded after connecting resistance R6, diode V5 respectively, and the resistance R5 other ends are also connected with detection circuit
The cathode of CPU, the diode V3 connect capacitance C1, C3, one end of resistance R8, R10, capacitance C1, C3 other end respectively
Ground connection, the base stage of resistance R8, R10 other end difference connecting triode T1, collector, the base stage connection of the triode T1
Ground connection, emitter are grounded after connecting capacitance C2, C4 respectively after diode V4, the anode connection diode V2's of the diode V1
Cathode, the plus earth of the diode V2, the anode of the diode V1 and the junction of the cathode of the diode V2 are
The connectivity port of the detector and the controller.
A kind of 2. fire hazard monitoring detection device according to claim 1, it is characterised in that the detection circuit CPU connections
Current transformer interface circuit, the current transformer interface circuit includes diode V10, the V11 being connected in antiparallel, described
The both ends that diode V10, V11 are connected in parallel connect the detection circuit CPU, interface I3, the current transformer connection respectively
Interface I3.
3. a kind of fire hazard monitoring detection device according to claim 1, it is characterised in that the controller connects multiple institutes
Detector is stated, each detector connects the current transformer.
4. a kind of fire hazard monitoring detection device according to claim 1, it is characterised in that modeling is set outside the detector
Charge level plate, sets conducting silica gel key on the plastic front board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393851.7A CN105445595B (en) | 2014-08-12 | 2014-08-12 | A kind of fire hazard monitoring detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393851.7A CN105445595B (en) | 2014-08-12 | 2014-08-12 | A kind of fire hazard monitoring detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105445595A CN105445595A (en) | 2016-03-30 |
| CN105445595B true CN105445595B (en) | 2018-05-11 |
Family
ID=55556024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410393851.7A Active CN105445595B (en) | 2014-08-12 | 2014-08-12 | A kind of fire hazard monitoring detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105445595B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128058A (en) * | 2016-08-18 | 2016-11-16 | 无锡蓝天电子股份有限公司 | A kind of fire alarm control unit of band detection earth fault function |
| CN109389798B (en) * | 2018-12-05 | 2023-05-12 | 无锡蓝天电子股份有限公司 | Non-polarity two-bus residual current type fire detector |
| CN109389796B (en) * | 2018-12-05 | 2023-06-02 | 无锡蓝天电子股份有限公司 | Nonpolar two-bus temperature measurement type fire detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489074U (en) * | 2009-02-17 | 2010-05-26 | 泉州纪超电子有限公司 | Leakage fire sensing circuit |
| CN201796453U (en) * | 2010-09-02 | 2011-04-13 | 佛山市南电开关有限公司 | Bus-type electric fire hazard monitoring system |
| CN201796459U (en) * | 2010-09-19 | 2011-04-13 | 天津北方恒业电气技术有限公司 | Electric leakage and temperature monitoring detector |
| CN202795632U (en) * | 2012-07-20 | 2013-03-13 | 深圳市赋安安全系统有限公司 | Two-wire electric fire monitoring system |
| CN203204763U (en) * | 2013-05-02 | 2013-09-18 | 孙建中 | Electrical fire warning device |
| CN204154836U (en) * | 2014-08-12 | 2015-02-11 | 无锡蓝天电子有限公司 | Fire hazard monitoring sniffer |
-
2014
- 2014-08-12 CN CN201410393851.7A patent/CN105445595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489074U (en) * | 2009-02-17 | 2010-05-26 | 泉州纪超电子有限公司 | Leakage fire sensing circuit |
| CN201796453U (en) * | 2010-09-02 | 2011-04-13 | 佛山市南电开关有限公司 | Bus-type electric fire hazard monitoring system |
| CN201796459U (en) * | 2010-09-19 | 2011-04-13 | 天津北方恒业电气技术有限公司 | Electric leakage and temperature monitoring detector |
| CN202795632U (en) * | 2012-07-20 | 2013-03-13 | 深圳市赋安安全系统有限公司 | Two-wire electric fire monitoring system |
| CN203204763U (en) * | 2013-05-02 | 2013-09-18 | 孙建中 | Electrical fire warning device |
| CN204154836U (en) * | 2014-08-12 | 2015-02-11 | 无锡蓝天电子有限公司 | Fire hazard monitoring sniffer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105445595A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105445595B (en) | A kind of fire hazard monitoring detection device | |
| CN103986192A (en) | Non-isolation type photovoltaic grid-connected inverter and photovoltaic grid-connected power generation system | |
| CN100458455C (en) | Signal producing circuit for detecting earthing state | |
| CN105958435A (en) | FPGA-based power grid overvoltage and undervoltage detection circuit and method | |
| CN103308755B (en) | The insulation detection device of high voltage direct current remote electric power system and method | |
| CN203658476U (en) | High-voltage phase-checking device | |
| CN103487750A (en) | Testing circuit capable of detecting residual current operated circuit breaker in remote mode | |
| CN204536486U (en) | A kind of IGBT moves back saturation detection circuit | |
| CN212932815U (en) | Load type detection circuit, load type detection device and household equipment | |
| CN204154836U (en) | Fire hazard monitoring sniffer | |
| CN204348191U (en) | Intelligent teaching circuit contact performance tester | |
| CN204206285U (en) | A kind of air-source water heater is reported to the police and display analysis device | |
| CN208111833U (en) | Wall socket and smart home system based on the wall socket | |
| CN203596750U (en) | Inverter with insulation monitoring device | |
| CN206420997U (en) | A kind of insulation detection device of the adaptive voltage grade based on voltage acquisition | |
| CN209517063U (en) | A kind of demodulator circuit and control system | |
| CN207832988U (en) | A kind of Three phase power phase shortage reverse phase detection circuit | |
| CN204314413U (en) | A kind of cable short circuit detecting device | |
| CN204099254U (en) | DC fan clamping type testing circuit in ups power system | |
| CN201000475Y (en) | Signal generating circuit for detecting earthing condition | |
| CN207832987U (en) | A kind of open phases of three-phase power source reverse phase detection circuit | |
| CN106740232B (en) | Control guide circuit | |
| CN103105527A (en) | Indoor electricity power detection device and method | |
| CN207007980U (en) | A kind of AC dump detects circuit | |
| CN110579640A (en) | current signal sending circuit for low-voltage power distribution area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Agency town of Huishan District in Jiangsu province Wuxi City Luo 214000 State Road 312 Zhang bridge section Applicant after: WUXI BRIGHTSKY ELECTRONIC CO., LTD. Address before: Agency town of Huishan District in Jiangsu province Wuxi City Luo 214187 State Road 312 Zhang bridge section Applicant before: Wuxi Brightsky Electronic Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |