CN104090540B - SF6 canyon safety device - Google Patents
SF6 canyon safety device Download PDFInfo
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- CN104090540B CN104090540B CN201410276093.0A CN201410276093A CN104090540B CN 104090540 B CN104090540 B CN 104090540B CN 201410276093 A CN201410276093 A CN 201410276093A CN 104090540 B CN104090540 B CN 104090540B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 78
- 229910018503 SF6 Inorganic materials 0.000 claims description 24
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 230000006870 function Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The SF6 canyon safety device of the present invention, it includes single-chip microcomputer, detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module, and described detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module are connected respectively on single-chip microcomputer. By the design of multiple modules and integration, achieve the functions such as gas alarm, gate inhibition's closedown, PAU+FCU system, monitoring video, and can show and transfer equipment state in real time and monitor picture, pass through intelligent processing method, before avoiding, manual operation is delayed, be susceptible to the series of problems such as danger, greatly reduces human cost.<!--2-->
Description
Technical field
The present invention relates to a kind of preventer, specifically SF6 canyon safety device.
Background technology
SF6 oxygen measuring apparatus (SF6 gas leakage warning instrument) is a kind of Intelligent environment on-line monitoring system of the requirement according to industrial security regulation and development and Design, the oxygen measuring apparatus that can report to the police and SF6 gas leakage warning instrument are installed in the low level district of SF6 power distribution equipment, operation maintenance personnel personal safety can be effectively ensured. SF6 oxygen measuring apparatus device widely used in current transformer station can realize basic leakage alarm function, but constantly innovation and the development along with monitoring system of electric substation, the requirement of shelter of SF6 canyon is got more and more, simple warning function can not meet existing demand, in the urgent need to a kind of SF6 canyon safety device intelligent, multi-functional.
Summary of the invention
In order to solve the problems referred to above, the invention provides SF6 canyon safety device, a series of operation of reporting to the police can not only be realized, and the corresponding subsequent treatment such as ventilation, locking, video recording can be started, be greatly improved the safety of SF6 canyon.
The present invention is by the following technical solutions: SF6 canyon safety device, it is characterised in that include single-chip microcomputer, detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module;
Described detection module includes concentration of sulfur hexafluoride sensor, oxygen concentration sensor, communication chip, difference operational amplifying circuit, A/D conversion chip, the outfan of described concentration of sulfur hexafluoride sensor connects the input of communication chip, the outfan of described communication chip connects A/D conversion chip and single-chip microcomputer respectively, the outfan of described oxygen concentration sensor connects the input of difference operational amplifying circuit, the outfan of difference operational amplifying circuit connects A/D conversion chip, and the outfan of A/D conversion chip connects single-chip microcomputer;
Described fan control module includes temperature sensor and switching circuit, and described switching circuit connects single-chip microcomputer, and described temperature sensor is connected on single-chip microcomputer by A/D conversion chip;
Described LCD MODULE includes display circuit and LCDs, and the input of described display circuit connects single-chip microcomputer, and the outfan of described display circuit connects LCDs;
Described lock modules includes telecommunication circuit, and the input of described telecommunication circuit connects single-chip microcomputer, and the outfan of described telecommunication circuit connects entrance guard security system;
Described monitoring module includes some video cameras, and all described video camera is connected respectively on single-chip microcomputer;
Described alarm module includes some audible-visual annunciators, and all described audible-visual annunciator is connected respectively on single-chip microcomputer;
Described memory module includes clock circuit and memorizer, and described clock circuit and memorizer are connected respectively on single-chip microcomputer.
Further, described device also includes reset circuit and crystal oscillating circuit, and described reset circuit and crystal oscillating circuit are connected respectively on single-chip microcomputer.
Further, described single-chip microcomputer adopts 89C51 chip.
Further, described difference operational amplifying circuit includes resistance R10, resistance R11, electric capacity C20, resistance R12, operational amplifier U11, resistance R13, electric capacity C10, one end of described resistance R10 connects an outfan of oxygen concentration sensor, the other end of resistance R10 connects one end of resistance R12, 7th pin of the other end concatenation operation amplifier U11 of resistance R12, described electric capacity C20 is in parallel with resistance R12, one end of described resistance R11 connects another outfan of oxygen concentration sensor, 5th pin of the other end concatenation operation amplifier U11 of resistance R11, 5th pin of one end concatenation operation amplifier U11 of resistance R13, the other end ground connection of resistance R13, electric capacity C10 is in parallel with resistance R13, 7th pin of described operational amplifier U11 connects the input of chip ADC0809.
Further, described switching circuit includes polar capacitor C4, electric capacity C5, three-terminal voltage-stabilizing pipe U2, polar capacitor C6, resistance R24, optocoupler U3, resistance R25, audion Q1, resistance R23, resistance R22, one end of described resistance R25 connects external voltage, the resistance R25 other end connects the 4th pin of optocoupler U3, first pin of described optocoupler U3 connects one end of resistance R24, the other end of resistance R24 connects+5V voltage, the colelctor electrode of the second pin connecting triode Q1 of described optocoupler U3, 3rd pin of described optocoupler U3 passes through single-chip microcomputer, A/D conversion chip is connected with temperature sensor, described polar capacitor C6 positive pole connects+5V voltage, polar capacitor C6 negative pole other end ground connection, one end of described electric capacity C5 connects first pin of stabilivolt U2, the other end ground connection of electric capacity C5, polar capacitor C4 positive pole connects+12V voltage, polar capacitor C4 minus earth, described stabilivolt U2 the first pin connects+12V voltage, 3rd pin of described stabilivolt U2 connects+5V voltage, the second pin ground connection of described stabilivolt U2, described audion Q1 base stage connects resistance R22 one end, the other end of resistance R22 connects single-chip microcomputer, the one termination audion Q1 base stage of described resistance R23, resistance R23 other end ground connection, the grounded emitter of audion Q1.
Further, described telecommunication circuit includes polar capacitor C16, electric capacity C0, power module U6, electric capacity C11, polar capacitor C17, resistance R30, resistance R1, electric capacity C7, polar capacitor C15, polar capacitor C14, resistance R31, driver U5, polar capacitor C12, polar capacitor C13, optocoupler U4, resistance R3, audion Q3, resistance R27, resistance R26, the positive pole of described polar capacitor C16 connects+12V voltage, the minus earth of polar capacitor C16, electric capacity C0 and polar capacitor are in parallel, first pin of power module U6 connects+12V voltage, power module U6 the second pin ground connection, power module U6 the 4th pin ground connection, power module U6 the 6th pin connects external voltage, described polar capacitor C17 positive pole connects the 6th pin of power module U6, polar capacitor C17 minus earth, described electric capacity C11 and resistance R30 is in parallel with polar capacitor C17 respectively, described electric capacity C7 one end connect driver U5 the 16th pin, the other end ground connection of electric capacity C7, the negative pole of described polar capacitor C15 connects power module U6 the 6th pin, the positive pole of polar capacitor C15 connects second pin of driver U5, the negative pole of described polar capacitor C14 connects the 6th pin of driver U5, the plus earth of polar capacitor C14, one end of resistance R31 connects the 14th pin of driver U5, the other end of resistance R31 connects entrance guard security system, 16th pin of described driver U5 connects power module U6 the 6th pin, the 15th pin ground connection of described driver U5, first pin of described driver U5 connects polar capacitor C12 positive pole, polar capacitor C12 negative pole connects the 3rd pin of driver U5, 4th pin of described driver U5 connects the positive pole of polar capacitor C13, polar capacitor C13 negative pole connects the 5th pin of driver U5, resistance R1 one end connects the 16th pin of driver U5, 4th pin of resistance R1 another termination optocoupler U4, first pin of optocoupler U4 connects+5V voltage by resistance R3, the colelctor electrode of the second pin connecting triode Q3 of optocoupler U4, the grounded emitter of audion Q3, the base stage of audion Q3 connects single-chip microcomputer by resistance R26, resistance R27 one end connecting triode Q3 base stage, resistance R27 other end ground connection.
The invention has the beneficial effects as follows: by the design of multiple modules and integration, achieve the functions such as gas alarm, gate inhibition's closedown, PAU+FCU system, monitoring video, and can show and transfer equipment state in real time and monitor picture, pass through intelligent processing method, before avoiding, manual operation is delayed, be susceptible to the series of problems such as danger, greatly reduces human cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the circuit theory diagrams of detection module of the present invention;
Fig. 3 is the circuit theory diagrams of fan control module of the present invention;
Fig. 4 is the circuit theory diagrams of LCD MODULE of the present invention;
Fig. 5 is the circuit theory diagrams of lock modules of the present invention;
Fig. 6 is the circuit theory diagrams of monitoring module of the present invention;
Fig. 7 is the circuit theory diagrams of memory module of the present invention.
Detailed description of the invention
SF6 canyon safety device as shown in Figure 1, including SF6 canyon safety device, it is characterized in that, including single-chip microcomputer, detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module, described detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module are connected respectively on single-chip microcomputer, wherein, described single-chip microcomputer adopts 89C51 chip, and chip is also associated with reset circuit and crystal oscillating circuit.
As shown in Figure 2, described detection module includes concentration of sulfur hexafluoride sensor, oxygen concentration sensor, communication chip U10, difference operational amplifying circuit, A/D conversion chip ADC0809, the outfan of described concentration of sulfur hexafluoride sensor connects the 6th pin and the 7th pin of communication chip U10 respectively, 8th pin of described communication chip U10 connects+5V power supply, resistance R8 two ends connect the 8th pin and the 7th pin of communication chip U10 respectively, resistance R9 one end connects communication chip U10 the 6th pin, resistance R9 other end ground connection, electric capacity C21 one end connects the 8th pin of communication chip U10, electric capacity C21 other end ground connection, the 5th pin ground connection of described communication chip U10, first pin of described communication chip U10 connects the input port of chip ADC0809, second pin of described communication chip U10 and the 3rd pin connect the input port of single chip computer89C51 respectively, described difference operational amplifying circuit includes resistance R10, resistance R11, electric capacity C20, resistance R12, operational amplifier U11, resistance R13, electric capacity C10, one end of described resistance R10 connects an outfan of oxygen concentration sensor, the other end of resistance R10 connects one end of resistance R12, 7th pin of the other end concatenation operation amplifier U11 of resistance R12, described electric capacity C20 is in parallel with resistance R12, one end of described resistance R11 connects another outfan of oxygen concentration sensor, 5th pin of the other end concatenation operation amplifier U11 of resistance R11, 5th pin of one end concatenation operation amplifier U11 of resistance R13, the other end ground connection of resistance R13, electric capacity C10 is in parallel with resistance R13, 7th pin of described operational amplifier U11 connects the input of chip ADC0809, the outfan of chip ADC0809 connects single-chip microcomputer, in foregoing circuit, operational amplifier U11 adopts model to be the chip of OP2177, communication chip U10 adopts model to be the chip of 65176BD.
As shown in Figure 3, described fan control module includes temperature sensor and switching circuit, described switching circuit includes polar capacitor C4, electric capacity C5, three-terminal voltage-stabilizing pipe U2, polar capacitor C6, resistance R24, optocoupler U3, resistance R25, audion Q1, resistance R23, resistance R22, one end of described resistance R25 connects external voltage, the resistance R25 other end connects the 4th pin of optocoupler U3, first pin of described optocoupler U3 connects one end of resistance R24, the other end of resistance R24 connects+5V voltage, the colelctor electrode of the second pin connecting triode Q1 of described optocoupler U3, 3rd pin of described optocoupler U3 passes through single-chip microcomputer, A/D conversion chip is connected with temperature sensor, described polar capacitor C6 positive pole connects+5V voltage, polar capacitor C6 negative pole other end ground connection, one end of described electric capacity C5 connects first pin of stabilivolt U2, the other end ground connection of electric capacity C5, polar capacitor C4 positive pole connects+12V voltage, polar capacitor C4 minus earth, described stabilivolt U2 the first pin connects+12V voltage, 3rd pin of described stabilivolt U2 connects+5V voltage, the second pin ground connection of described stabilivolt U2, described audion Q1 base stage connects resistance R22 one end, the other end of resistance R22 connects single-chip microcomputer, the one termination audion Q1 base stage of described resistance R23, resistance R23 other end ground connection, the grounded emitter of audion Q1, in the circuit, audion Q1 is NPN type triode, the model of optocoupler U3 is TLP521-1, the model of three-terminal voltage-stabilizing pipe U2 is 7805.
As shown in Figure 4, described LCD MODULE includes display circuit and LCDs, described display circuit includes optocoupler U7, optocoupler U8, resistance R7 and resistance R20, first pin of described optocoupler U8 connects LCDs by resistance R7, second pin of described optocoupler U8 connects LCDs, 4th pin of described optocoupler U8 connects+5V voltage, 3rd pin of described optocoupler U8 connects the RXD port of single-chip microcomputer, 4th pin and the 3rd pin of described optocoupler U7 connect LCDs respectively, first pin of described optocoupler U7 connects+5V voltage by resistance R20, second pin of described optocoupler U7 connects the TXD port of single-chip microcomputer, this circuit is used for real-time various data and equipment state, display is in the circuit, optocoupler U7 and optocoupler U8 all adopts TLP521-1 chip.
As shown in Figure 5, described lock modules includes telecommunication circuit, described telecommunication circuit includes polar capacitor C16, electric capacity C0, power module U6, electric capacity C11, polar capacitor C17, resistance R30, resistance R1, electric capacity C7, polar capacitor C15, polar capacitor C14, resistance R31, driver U5, polar capacitor C12, polar capacitor C13, optocoupler U4, resistance R3, audion Q3, resistance R27, resistance R26, the positive pole of described polar capacitor C16 connects+12V voltage, the minus earth of polar capacitor C16, electric capacity C0 and polar capacitor are in parallel, first pin of power module U6 connects+12V voltage, power module U6 the second pin ground connection, power module U6 the 4th pin ground connection, power module U6 the 6th pin connects external voltage, described polar capacitor C17 positive pole connects the 6th pin of power module U6, polar capacitor C17 minus earth, described electric capacity C11 and resistance R30 is in parallel with polar capacitor C17 respectively, described electric capacity C7 one end connect driver U5 the 16th pin, the other end ground connection of electric capacity C7, the negative pole of described polar capacitor C15 connects power module U6 the 6th pin, the positive pole of polar capacitor C15 connects second pin of driver U5, the negative pole of described polar capacitor C14 connects the 6th pin of driver U5, the plus earth of polar capacitor C14, one end of resistance R31 connects the 14th pin of driver U5, the other end of resistance R31 connects entrance guard security system, 16th pin of described driver U5 connects power module U6 the 6th pin, the 15th pin ground connection of described driver U5, first pin of described driver U5 connects polar capacitor C12 positive pole, polar capacitor C12 negative pole connects the 3rd pin of driver U5, 4th pin of described driver U5 connects the positive pole of polar capacitor C13, polar capacitor C13 negative pole connects the 5th pin of driver U5, resistance R1 one end connects the 16th pin of driver U5, 4th pin of resistance R1 another termination optocoupler U4, first pin of optocoupler U4 connects+5V voltage by resistance R3, the colelctor electrode of the second pin connecting triode Q3 of optocoupler U4, the grounded emitter of audion Q3, the base stage of audion Q3 connects single-chip microcomputer by resistance R26, resistance R27 one end connecting triode Q3 base stage, resistance R27 other end ground connection, in the circuit, audion Q3 is NPN type triode, the model of optocoupler U4 is TLP521-1, power module U6 model is IF1205S-2W, the model of driver U5 is MAX232ESE, entrance guard security system is existing system and software.
As shown in Figure 6, described monitoring module includes video camera, relay K 1, resistance R4, LED, diode D1, audion Q2, resistance R6, resistance R5, one end of described resistance R5 connects single-chip microcomputer, the other end connecting triode Q2 base stage of resistance R5, the one termination audion Q2 base stage of resistance R6, resistance R6 other end ground connection, audion Q2 grounded emitter, audion Q2 colelctor electrode connects diode D1 positive pole, diode D1 negative pole connects+12V voltage, one end of resistance R4 connects+12V voltage and relay K 1 first input end respectively, the resistance R4 other end connects the positive pole of LED, the negative pole of LED is connecting triode Q2 colelctor electrode and relay K 1 second input respectively, the switch of relay K 1 is arranged on zero line, photographic head two ends connect zero line and live wire respectively, in this circuit, audion Q2 is the NPN type triode of 8050.
Described memory module includes clock circuit and memorizer U13, described clock circuit includes clock chip U12, crystal oscillator Y1, electric capacity C9, battery BT1, the X1 pin of described clock chip U12 and X2 pin connect the two ends of crystal oscillator Y1 respectively, one end of electric capacity C9 connects+5V voltage respectively, the X1 pin of clock chip U12, the Vcc2 pin of clock chip U12, the other end ground connection of electric capacity C9, the GND pin ground connection of clock chip U12, the Vcc1 pin of clock chip U12 connects the positive pole of battery BT1, the minus earth of battery BT1, the RST pin of clock chip U12, I/O pin, SCLK pin connects single-chip microcomputer respectively, three NC pins of described memorizer U13 and the equal ground connection of GND pin, the Vcc pin of memorizer U13 connects+5V voltage and electric capacity C8 one end respectively, electric capacity C8 other end ground connection, the TEST pin of memorizer U13, SCL pin and SDA pin connect single-chip microcomputer respectively, wherein, memorizer U13 adopts AT24C02 chip, and clock chip U12 adopts DS1302 chip, and battery BT1 supplies 3V voltage.
Described alarm module includes some audible-visual annunciators, and all described audible-visual annunciator is connected respectively on single-chip microcomputer.
In above-mentioned all circuit, except the electronic devices and components of special instruction, model or the numerical value of unaccounted electronic devices and components all mark in the drawings.
During normal operation, temperature sensor detects temperature in real time, and Temperature numerical passes to single-chip microcomputer, and temperature is maintained within a certain range by the operating of Single-chip Controlling blower fan.
When concentration of sulfur hexafluoride sensor detect concentration of sulfur hexafluoride too high to or when oxygen concentration sensor detects that oxygen concentration is too low, single-chip microcomputer starts fan control module, control blower fan exploitation speed, strengthen the supply of amount of oxygen, simultaneously, lock modules responds, access control safety-protection system closes gate, locked door lock, personnel are prevented to be strayed into, audible-visual annunciator sends warning, the personnel of notice check maintenance, in whole said process, photographic head real-time Transmission monitored picture, all of data store memory module, check so that calling, monitoring personnel can check the monitored picture of the equipment states such as blower fan and gate place by LCD MODULE.
Except structure of the present invention, all the other are prior art.
The above is the preferred embodiment of the present invention, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, and these improvements and modifications are also regarded as protection scope of the present invention.
Claims (2)
1.SF6 canyon safety device, it is characterised in that include single-chip microcomputer, detection module, LCD MODULE, fan control module, lock modules, monitoring module, alarm module and memory module; Described detection module includes concentration of sulfur hexafluoride sensor, oxygen concentration sensor, communication chip, difference operational amplifying circuit, A/D conversion chip, the outfan of described concentration of sulfur hexafluoride sensor connects the input of communication chip, the outfan of described communication chip connects A/D conversion chip and single-chip microcomputer respectively, the outfan of described oxygen concentration sensor connects the input of difference operational amplifying circuit, the outfan of difference operational amplifying circuit connects A/D conversion chip, and the outfan of A/D conversion chip connects single-chip microcomputer; Described fan control module includes temperature sensor and switching circuit, and described switching circuit connects single-chip microcomputer, and described temperature sensor is connected on single-chip microcomputer by A/D conversion chip;Described LCD MODULE includes display circuit and LCDs, and the input of described display circuit connects single-chip microcomputer, and the outfan of described display circuit connects LCDs, described lock modules includes telecommunication circuit, and the input of described telecommunication circuit connects single-chip microcomputer, and the outfan of described telecommunication circuit connects entrance guard security system, described monitoring module includes some video cameras, and all described video camera is connected respectively on single-chip microcomputer, described alarm module includes some audible-visual annunciators, and all described audible-visual annunciator is connected respectively on single-chip microcomputer, described memory module includes clock circuit and memorizer, and described clock circuit and memorizer are connected respectively on single-chip microcomputer, described device also includes reset circuit and crystal oscillating circuit, and described reset circuit and crystal oscillating circuit are connected respectively on single-chip microcomputer, and described single-chip microcomputer adopts 89C51 chip, described difference operational amplifying circuit includes resistance R10, resistance R11, electric capacity C20, resistance R12, operational amplifier U11, resistance R13, electric capacity C10, operational amplifier U11 adopts OP2177 chip, one end of described resistance R10 connects an outfan of oxygen concentration sensor, the other end of resistance R10 connects one end of resistance R12, 7th pin of the other end concatenation operation amplifier U11 of resistance R12, described electric capacity C20 is in parallel with resistance R12, one end of described resistance R11 connects another outfan of oxygen concentration sensor, 5th pin of the other end concatenation operation amplifier U11 of resistance R11, 5th pin of one end concatenation operation amplifier U11 of resistance R13, the other end ground connection of resistance R13, electric capacity C10 is in parallel with resistance R13, 7th pin of described operational amplifier U11 connects the input of chip ADC0809, described switching circuit includes polar capacitor C4, electric capacity C5, three-terminal voltage-stabilizing pipe U2, polar capacitor C6, resistance R24, optocoupler U3, resistance R25, audion Q1, resistance R23, resistance R22, optocoupler U3 adopts TLP521-1 chip, one end of described resistance R25 connects external voltage, the resistance R25 other end connects the 4th pin of optocoupler U3, first pin of described optocoupler U3 connects one end of resistance R24, the other end of resistance R24 connects+5V voltage, the colelctor electrode of the second pin connecting triode Q1 of described optocoupler U3, 3rd pin of described optocoupler U3 passes through single-chip microcomputer, A/D conversion chip is connected with temperature sensor, described polar capacitor C6 positive pole connects+5V voltage, polar capacitor C6 negative pole other end ground connection, one end of described electric capacity C5 connects first pin of stabilivolt U2, the other end ground connection of electric capacity C5, polar capacitor C4 positive pole connects+12V voltage, polar capacitor C4 minus earth, described stabilivolt U2 the first pin connects+12V voltage, 3rd pin of described stabilivolt U2 connects+5V voltage, the second pin ground connection of described stabilivolt U2, described audion Q1 base stage connects resistance R22 one end, the other end of resistance R22 connects single-chip microcomputer, the one termination audion Q1 base stage of described resistance R23, resistance R23 other end ground connection, the grounded emitter of audion Q1.
2. SF6 canyon safety device according to claim 1, it is characterized in that, described telecommunication circuit includes polar capacitor C16, electric capacity C0, power module U6, electric capacity C11, polar capacitor C17, resistance R30, resistance R1, electric capacity C7, polar capacitor C15, polar capacitor C14, resistance R31, driver U5, polar capacitor C12, polar capacitor C13, optocoupler U4, resistance R3, audion Q3, resistance R27, resistance R26, power module U6 adopts IF1205S-2W, driver U5 adopts MAX232ESE, the positive pole of described polar capacitor C16 connects+12V voltage, the minus earth of polar capacitor C16, electric capacity C0 and polar capacitor are in parallel, first pin of power module U6 connects+12V voltage, power module U6 the second pin ground connection, power module U6 the 4th pin ground connection, power module U6 the 6th pin connects external voltage, described polar capacitor C17 positive pole connects the 6th pin of power module U6, polar capacitor C17 minus earth, described electric capacity C11 and resistance R30 is in parallel with polar capacitor C17 respectively, described electric capacity C7 one end connect driver U5 the 16th pin, the other end ground connection of electric capacity C7, the negative pole of described polar capacitor C15 connects power module U6 the 6th pin, the positive pole of polar capacitor C15 connects second pin of driver U5, the negative pole of described polar capacitor C14 connects the 6th pin of driver U5, the plus earth of polar capacitor C14, one end of resistance R31 connects the 14th pin of driver U5, the other end of resistance R31 connects entrance guard security system, 16th pin of described driver U5 connects power module U6 the 6th pin, the 15th pin ground connection of described driver U5, first pin of described driver U5 connects polar capacitor C12 positive pole, polar capacitor C12 negative pole connects the 3rd pin of driver U5, 4th pin of described driver U5 connects the positive pole of polar capacitor C13, polar capacitor C13 negative pole connects the 5th pin of driver U5, resistance R1 one end connects the 16th pin of driver U5, 4th pin of resistance R1 another termination optocoupler U4, first pin of optocoupler U4 connects+5V voltage by resistance R3, the colelctor electrode of the second pin connecting triode Q3 of optocoupler U4, the grounded emitter of audion Q3, the base stage of audion Q3 connects single-chip microcomputer by resistance R26, resistance R27 one end connecting triode Q3 base stage, resistance R27 other end ground connection.
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| CN201410276093.0A CN104090540B (en) | 2014-06-19 | 2014-06-19 | SF6 canyon safety device |
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| CN201410276093.0A CN104090540B (en) | 2014-06-19 | 2014-06-19 | SF6 canyon safety device |
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| CN106227256A (en) * | 2016-08-30 | 2016-12-14 | 合肥智博电气有限公司 | Power distribution cabinet temperature-adjusting device |
| CN109372771A (en) * | 2018-10-31 | 2019-02-22 | 宁波兴泰科技有限公司 | A kind of system for ceiling fan protection |
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