CN105445595A - Fire disaster monitoring detecting device - Google Patents
Fire disaster monitoring detecting device Download PDFInfo
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- CN105445595A CN105445595A CN201410393851.7A CN201410393851A CN105445595A CN 105445595 A CN105445595 A CN 105445595A CN 201410393851 A CN201410393851 A CN 201410393851A CN 105445595 A CN105445595 A CN 105445595A
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Abstract
The invention relates to the technical field of fire disaster monitoring, and particularly relates to a fire disaster monitoring detecting device. The fire disaster monitoring detecting device can conveniently detect electric leakage, effectively prevent a fire disaster without external power supplying, and is convenient in expansion and field installation. The fire disaster monitoring detecting device includes a controller; the controller is connected to detectors through a bus; the detectors are connected to current transformers; the controller includes a controller CPU; the other end of a fuse P5 is a connection port T- of the controller and the detectors; the connection port T- is connected to an input end of a voltage comparator LM399; the other input end of the voltage comparator LM399 is connected to an end of a resistor R15 and an end of a resistor R14; the other end of the resistor R15 is connected to a power supply; and the other end of a fuse P2 is the other connection port T+ of the controller and the detectors.
Description
Technical field
The present invention relates to fire hazard monitoring technical field, be specially a kind of fire hazard monitoring sniffer.
Background technology
Along with the progressively raising of rapid economic development and living standard; the use amount of various electrical equipment and household electrical appliance increases suddenly; the quantity of electrical fire accident also increases severely thereupon; often there will be because of the fire that circuit-line leaks electricity or short circuit etc. causes in general industry and covil construction; therefore need to carry out fire hazard monitoring, general detector Effect on Detecting is undesirable, and preventive effect is undesirable; need outside on-the-spot power supply, expansion and in-site installation all inconvenient.
Summary of the invention
In order to solve the problem, the invention provides a kind of fire hazard monitoring sniffer, it can detect electric leakage easily, the generation of effective fire preventing, and without the need to externally fed, expansion and in-site installation are conveniently.
Its technical scheme is such: a kind of fire hazard monitoring sniffer, it comprises controller, it is characterized in that, described controller connects detector by bus, described detector connects current transformer, described controller comprises controller CPU, described control circuit CPU connects transistor UNL2003, described transistor UNL2003 connects the negative electrode of diode V15 by diode V9, the base stage of triode V14, the collector contact resistance R17 respectively of described triode V14, diode V24 one end, described resistance R17, fuse P5 one end is connected after the diode V24 other end is connected, the described fuse P5 other end is a connectivity port T-of described controller and described detector, connectivity port T-connects an input end of voltage comparator LM399, another input end contact resistance R15 of described voltage comparator LM399, R14 one end, the described resistance R15 other end connects power supply, described resistance R14 other end ground connection, the output terminal connection control device CPU of described voltage comparator LM399, the anode of described diode V15 connects the negative electrode of diode V20, the base stage of the anode difference connecting triode V22 of described diode V20, resistance R4 one end, the base stage of the emitter connecting triode V8 of described triode V22, the described resistance R4 other end and described triode V22, connected rear connection fuse P8 one end of collector of V8, the described fuse P8 other end connects power supply, the emitter of described triode V8 is connected fuse P2 one end after being connected with the emitter of described triode, the described fuse P2 other end is another connectivity port T+ of described controller and described detector.
It is further characterized in that, described detector comprises detection circuit CPU, and described detection circuit CPU is by emitter contact resistance R2 one end of resistance R7 connecting triode T4, described triode T4, and the described resistance R2 other end connects the negative electrode of diode V1, the anode of V3, resistance R5 one end, the described resistance R5 other end is contact resistance R6 respectively, ground connection after diode V5, the resistance R5 other end also connects detection circuit CPU, and the negative electrode of described diode V3 connects electric capacity C1 respectively, C3, resistance R8, one end of R10, described electric capacity C1, C3 other end ground connection, described resistance R8, the base stage of R10 other end difference connecting triode T1, collector, ground connection after the base stage connection diode V4 of described triode T1, emitter connects electric capacity C2 respectively, ground connection after C4, the anode of described diode V1 connects the negative electrode of diode V2, the plus earth of described diode V2, and the junction of the anode of described diode V1 and the negative electrode of described diode V2 is the connectivity port of described detector and described controller,
Described detection circuit CPU connects current transformer interface circuit, described current transformer interface circuit comprises diode V10, V11 of being connected in antiparallel, the two ends that described diode V10, V11 are connected in parallel connect described detection circuit CPU, interface I3 respectively, described current transformer connecting interface I3;
Described controller connects multiple described detector, and each described detector connects described current transformer;
Described detector outer setting plastic front board, described plastic front board arranges conducting silica gel key.
After adopting structure of the present invention, the data that current transformer is recorded circuit-line by detector are transferred to controller, controller judges whether to reach alarming value, it can detect electric leakage easily, the generation of effective fire preventing, Single-chip Controlling triode V22, V14, make the voltage transmission at fuse P2 place to detector, realizing detector uses controller home loop to power, and detector is without the need to externally fed, and expansion and in-site installation are conveniently.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is controller circuit structure schematic diagram;
Fig. 3 is detector circuit structural representation;
Fig. 4 is the communications protocol between detector and controller.
Embodiment
As shown in Figure 1, a kind of fire hazard monitoring sniffer, it comprises controller 1, controller 1 connects multiple detector 2 by bus, 250 detectors 2 can be connected at most, being conducive to large scale system uses each detector 2 to connect current transformer 3, a controller can monitor many places circuit simultaneously, the generation of further fire preventing, detector 2 outer setting plastic front board, plastic front board arranges conducting silica gel key, feel is good, longer service life, the word on button adopts radium technology for fast carving on, and word is not easily rubbed bad.
As shown in Figure 2, controller comprises controller CPU, control circuit CPU connects transistor UNL2003, transistor UNL2003 connects the negative electrode of diode V15 by diode V9, the base stage of triode V14, the collector contact resistance R17 respectively of triode V14, diode V24 one end, resistance R17, fuse P5 one end is connected after the diode V24 other end is connected, the fuse P5 other end is a connectivity port T-of controller and detector, connectivity port T-connects an input end of voltage comparator LM399, another input end contact resistance R15 of voltage comparator LM399, R14 one end, the resistance R15 other end connects power supply, supply voltage is 24V, resistance R14 other end ground connection, the output terminal connection control device CPU of voltage comparator LM399, the anode of diode V15 connects the negative electrode of diode V20, the base stage of the anode difference connecting triode V22 of diode V20, resistance R4 one end, the base stage of the emitter connecting triode V8 of triode V22, the resistance R4 other end and triode V22, connected rear connection fuse P8 one end of collector of V8, the fuse P8 other end connects power supply, the emitter of triode V8 is connected fuse P2 one end after being connected with the emitter of triode, the fuse P2 other end is another connectivity port T+ of controller and detector, controller CPU controls triode V14, the connectivity port T+ end that V22 makes is in+24V, 0V or+12V, ensure the power supply of detector 2, sample from the electric current of connectivity port T-outflow through sampling resistor R17 and send into voltage comparator LM399, another input end input reference voltage of voltage comparator LM399, controller CPU is exported to after relatively, controller CPU detects the time (i.e. pulsewidth width) higher than reference voltage, determine the state of detector, judge whether that circuit has electric leakage, sampling comparative voltage is 24V*0.1/24.1, sampling resistor is 10 ohm.
As shown in Figure 3, detector comprises detection circuit CPU, detection circuit CPU is by resistance R7 connecting triode T4, emitter contact resistance R2 one end of triode T4, the resistance R2 other end connects the negative electrode of diode V1, the anode of V3, resistance R5 one end, the resistance R5 other end is contact resistance R6 respectively, ground connection after diode V5, the resistance R5 other end also connects detection circuit CPU, the negative electrode of diode V3 connects electric capacity C1 respectively, C3, resistance R8, one end of R10, electric capacity C1, C3 other end ground connection, resistance R8, the base stage of R10 other end difference connecting triode T1, collector, ground connection after the base stage connection diode V4 of triode T1, emitter connects electric capacity C2 respectively, ground connection after C4, the anode of diode V1 connects the negative electrode of diode V2, the plus earth of diode V2, the junction of the anode of diode V1 and the negative electrode of diode V2 is the connectivity port of detector and controller, detection circuit CPU connects current transformer interface circuit, current transformer interface circuit comprises diode V10, V11 of being connected in antiparallel, the two ends that diode V10, V11 are connected in parallel connect detection circuit CPU, interface I3 respectively, the two ends that diode V10, V11 are connected in parallel connect ground connection after electric capacity C32, C33 respectively, between wherein one end that diode V10, V11 are connected in parallel and interface I3, resistance RP3 is set, current transformer connecting interface I3.
Fig. 4 is the communicaton protocol between detector 2 and controller 1, solves the problem of star-like wiring communication instability.
Claims (5)
1. a fire hazard monitoring sniffer, it comprises controller, it is characterized in that, described controller connects detector by bus, described detector connects current transformer, described controller comprises controller CPU, described control circuit CPU connects transistor UNL2003, described transistor UNL2003 connects the negative electrode of diode V15 by diode V9, the base stage of triode V14, the collector contact resistance R17 respectively of described triode V14, diode V24 one end, described resistance R17, fuse P5 one end is connected after the diode V24 other end is connected, the described fuse P5 other end is a connectivity port T-of described controller and described detector, connectivity port T-connects an input end of voltage comparator LM399, another input end contact resistance R15 of described voltage comparator LM399, R14 one end, the described resistance R15 other end connects power supply, described resistance R14 other end ground connection, the output terminal connection control device CPU of described voltage comparator LM399, the anode of described diode V15 connects the negative electrode of diode V20, the base stage of the anode difference connecting triode V22 of described diode V20, resistance R4 one end, the base stage of the emitter connecting triode V8 of described triode V22, the described resistance R4 other end and described triode V22, connected rear connection fuse P8 one end of collector of V8, the described fuse P8 other end connects power supply, the emitter of described triode V8 is connected fuse P2 one end after being connected with the emitter of described triode, the described fuse P2 other end is another connectivity port T+ of described controller and described detector.
2. a kind of fire hazard monitoring sniffer according to claim 1, it is characterized in that, described detector comprises detection circuit CPU, described detection circuit CPU is by resistance R7 connecting triode T4, emitter contact resistance R2 one end of described triode T4, the described resistance R2 other end connects the negative electrode of diode V1, the anode of V3, resistance R5 one end, the described resistance R5 other end is contact resistance R6 respectively, ground connection after diode V5, the resistance R5 other end also connects detection circuit CPU, and the negative electrode of described diode V3 connects electric capacity C1 respectively, C3, resistance R8, one end of R10, described electric capacity C1, C3 other end ground connection, described resistance R8, the base stage of R10 other end difference connecting triode T1, collector, ground connection after the base stage connection diode V4 of described triode T1, emitter connects electric capacity C2 respectively, ground connection after C4, the anode of described diode V1 connects the negative electrode of diode V2, and the plus earth of described diode V2, the junction of the anode of described diode V1 and the negative electrode of described diode V2 is the connectivity port of described detector and described controller.
3. a kind of fire hazard monitoring sniffer according to claim 2, it is characterized in that, described detection circuit CPU connects current transformer interface circuit, described current transformer interface circuit comprises diode V10, V11 of being connected in antiparallel, the two ends that described diode V10, V11 are connected in parallel connect described detection circuit CPU, interface I3 respectively, described current transformer connecting interface I3.
4. a kind of fire hazard monitoring sniffer according to claim 1, is characterized in that, described controller connects multiple described detector, and each described detector connects described current transformer.
5. a kind of fire hazard monitoring sniffer according to claim 1, is characterized in that, described detector outer setting plastic front board, described plastic front board arranges conducting silica gel key.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410393851.7A CN105445595B (en) | 2014-08-12 | 2014-08-12 | A kind of fire hazard monitoring detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410393851.7A CN105445595B (en) | 2014-08-12 | 2014-08-12 | A kind of fire hazard monitoring detection device |
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| CN105445595A true CN105445595A (en) | 2016-03-30 |
| CN105445595B CN105445595B (en) | 2018-05-11 |
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Cited By (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 |
| 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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| 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 |
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2014
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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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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| Publication number | Publication date |
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| CN105445595B (en) | 2018-05-11 |
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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. |
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