CN104185348A - Intelligent substation illumination remote control linkage device for inspection tour - Google Patents
Intelligent substation illumination remote control linkage device for inspection tour Download PDFInfo
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- CN104185348A CN104185348A CN201410438516.4A CN201410438516A CN104185348A CN 104185348 A CN104185348 A CN 104185348A CN 201410438516 A CN201410438516 A CN 201410438516A CN 104185348 A CN104185348 A CN 104185348A
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an intelligent substation illumination remote control linkage device for an inspection tour. The intelligent substation illumination remote control linkage device comprises an illumination sensor, a control terminal and a plurality of electromagnetic relays, wherein the electromagnetic relays are connected with illuminating lamps, the control terminal comprises a central processing unit, a power circuit, an illumination signal acquisition circuit and an illumination control circuit, the power circuit comprises an AC/DC conversion circuit and a DC/DC conversion circuit, the illumination control circuit comprises a plurality of relay driving circuits and a plurality of opto-coupler isolation circuits, the illumination signal acquisition circuit comprises an I/V conversion circuit and an AD conversion circuit, and the central processing unit is further connected with a human body infrared induction module. The intelligent substation illumination remote control linkage device for the inspection tour has the advantages that when inspectors approach devices, the illuminating lamps are automatically turned on, and thus the inspectors can inspect the devices conveniently.
Description
Technical field
The present invention relates to a kind of intelligent substation and make an inspection tour illumination control far away linkage.
Background technology
The lighting device of electric substation belongs to servicing unit in station, and the illumination control mode of using in common building is identical.Along with the large in-depth of building of three collection five of intelligent grid He Guowang company advances, the whole construction retrofits of transformer station of 500kV, 220kV, 110kV electric pressure are unattended operation transformer station, and capital construction transformer station progressively increases.But substation management personnel do not change, namely manage per capita quantity and promoting gradually.If unattended substation still adopts traditional manual inspection method, be subject to patrol officer physiology, psychological quality, sense of responsibility, operate outside environment, working experience, technical ability technical merit and on duty during the how many impact of work, patrol and examine to exist and have a glance at, leak and patrol, patrol less, the situation of even not patrolling, tour efficiency is low, of poor quality, both do not reached the object of tour equipment, more discovering device hidden danger in time.Equipment generation defect can not be found in time, not only jeopardizes the safe operation of system, also can threaten operations staff's personal safety.For the running status of the omnibearing remote monitoring of energy transformer station, need to carry out intellectualized reconstruction to existing servicing unit, promote transformer station of Utilities Electric Co. management and control ability.
Therefore, by adopting lighting far distance intelligent controlling device, combined with intelligent cruising inspection system, in the process of this system of operation, gather video image synchronously open illumination can solve substation inspection in night patrol function.
Summary of the invention
The present invention is the weak point existing in above-mentioned prior art for avoiding, and provides a kind of intelligent substation to make an inspection tour illumination control far away linkage, to solve in existing transformer station without automatic illuminating apparatus, to be not easy to the problem that staff patrols and examines.
The present invention be technical solution problem by the following technical solutions.
Intelligent substation is maked an inspection tour illumination control far away linkage, its design feature is, comprise optical sensor, control terminal and a plurality of electromagnetic relay, each electromagnetic relay of described a plurality of electromagnetic relays is connected with an illuminating lamp control the bright light of illuminating lamp and turn off the light; Described control terminal comprises central processing unit, power circuit, illumination signal acquisition circuit and illumination control circuit;
Described power circuit comprises AC/DC change-over circuit and DC/DC change-over circuit, and mains ac power supply is connected with described central processing unit with DC/DC change-over circuit by described AC/DC change-over circuit successively;
Described illumination control circuit comprises a plurality of relay drive circuits and a plurality of optical coupling isolation circuit; Each relay drive circuit and an optical coupling isolation circuit, be connected with a described electromagnetic relay on each optical coupling isolation circuit;
Described illumination signal acquisition circuit comprises an I/V change-over circuit and an A/D convertor circuit, and described optical sensor is connected with described central processing unit with described A/D convertor circuit by described I/V change-over circuit successively;
On described central processing unit, be also connected with a human body infrared induction module, whether described human body infrared induction module has people to approach or enter transformer substation high voltage chamber, protection chamber and place by induced signal automatic decision, and signal occurs to central processing unit when having people approach or enter; By central processing unit, send control signal and open illuminating lamp, patrol officer can be patrolled and examined equipment.
The design feature that intelligent substation of the present invention is maked an inspection tour illumination control far away linkage is also:
On described central processing unit, be also connected with a running status identification module.
On described central processing unit, be also connected with protocol conversion process module, described protocol conversion process module is connected with state access controller by a fiber optic data communication interface module.
Described I/V change-over circuit comprises switching diode D1, switching diode D2, resistance R 1～R5, variable resistor W1～W3, capacitor C 1～C3, operational amplifier U1, operational amplifier U2;
Two ends after described switching diode D1 and switching diode D2 connection parallel with one another are connected on the link In of described optical sensor and the link GND of optical sensor; The positive pole of described switching diode D1 is connected with the negative pole of described switching diode D2; The link GND ground connection of described optical sensor; On the link In of described optical sensor and link GND, be connected on two inputs of described operational amplifier U1;
Described resistance R 1 is in series to be connected afterwards with described variable resistor W3 and is in parallel and is connected with described capacitor C 1, and these two ends that are connected in parallel are all connected on described operational amplifier U1; The sliding end of described variable resistor W3 is connected with operational amplifier U2 with resistance R 2 by capacitor C 2 successively; It is upper that the two ends of described variable resistor W1 are all connected to described operational amplifier U1, the sliding end connection+12V power supply of variable resistor W1;
One end ground connection of described resistance R 3, the other end is connected with operational amplifier U2; One end ground connection of described resistance R 4, the other end is connected with operational amplifier U2; The two ends of described resistance R 5 are all connected on described operational amplifier U2; It is upper that the two ends of described variable resistor W2 are all connected to described operational amplifier U2, the sliding end connection+12V power supply of variable resistor W2;
It is upper that one end of described capacitor C 3 is connected to described operational amplifier U1, and the other end is connected between capacitor C 2 and resistance R 2.
Described A/D convertor circuit comprises AD conversion chip U3, resistance R 6～R8, resistance R 20～R27, capacitor C 4～C13 and capacitor C 50～C57; One end of described resistance R 6～R8 is connected with 33V power vd D, and the other end of resistance R 6～R8 connects respectively CS terminal, RESET terminal and the PWDN terminal of AD conversion chip U3; One end of described capacitor C 4～C9 connects power supply AVSS, the other end of described capacitor C 4 is connected the VCAP1 terminal of AD conversion chip U3 with the other end of C5, the other end of described capacitor C 6 connects the VCAP2 terminal of AD conversion chip U3, the other end of described capacitor C 7 is connected the VCAP3 terminal of AD conversion chip U3 with the other end of C8, the other end of described capacitor C 9 connects the VCAP4 terminal of AD conversion chip U3;
Described capacitor C 10 is connected the VREFN terminal of AD conversion chip U3 with the one end after capacitor C 11 connection parallel with one another, described capacitor C 10 is connected the VREFP terminal of AD conversion chip U3 with the other end after capacitor C 11 connection parallel with one another; The VREFN terminal of described AD conversion chip U3 is also connected with power supply AVSS;
One end of one end of described capacitor C 12 and capacitor C 13 is connected with the DVDD terminal of AD conversion chip U3 and is connected with 33V power vd D, and the other end of the other end of described capacitor C 12 and capacitor C 13 is connected earth terminal AGND;
One end of described resistance R 20～R27 is external signal input, and the other end of resistance R 20～R27 is connected on terminal IN1N～IN8N of described AD conversion chip U3; One end of described capacitor C 50～C57 connects earth terminal AGND, and the other end of described capacitor C 50～C57 is also connected on terminal IN1N～IN8N of described AD conversion chip U3.
Described relay drive circuit comprises resistance R 800～R803, triode Q1 and triode Q2; Described resistance R 800 is connected with the base stage of described triode Q1, described triode Q1 grounded emitter, and one end of described resistance R 801 is connected with the collector electrode of described triode Q1, and the other end of described resistance R 801 is connected with the emitter of triode Q2; The two ends of described resistance R 802 are connected in the collector electrode of described triode Q1 and the base stage of described triode Q2; The two ends of described resistance R 803 are connected in the base stage and emitter of described triode Q2.
Described optical coupling isolation circuit comprises resistance R 401～R402, capacitor C 401, Schottky diode D800, optocoupler O1 and optocoupler JQ1; Described resistance R 401 is all connected with described optocoupler O1 with capacitor C 401, and described optocoupler O1 is connected with optocoupler JQ1; One end of described R402 is connected between described optocoupler O1 and optocoupler JQ1, and the other end connects power supply VCC; The two ends of described Schottky diode D800 are all connected with described optocoupler JQ1; Described optocoupler JQ1 is also connected with the live wire ACL of mains ac power supply, and controlled electromagnetic relay is connected with optocoupler JQ1.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Intelligent substation of the present invention is maked an inspection tour illumination control far away linkage, comprises optical sensor, control terminal and a plurality of electromagnetic relay, and electromagnetic relay is connected with illuminating lamp; Control terminal comprises central processing unit, power circuit, illumination signal acquisition circuit and illumination control circuit; Power circuit comprises AC/DC change-over circuit and DC/DC change-over circuit; Illumination control circuit comprises a plurality of relay drive circuits and a plurality of optical coupling isolation circuit; Illumination signal acquisition circuit comprises an I/V change-over circuit and an A/D convertor circuit; On central processing unit, be also connected with a human body infrared induction module; when having people approach or enter, send a signal to central processing unit; realize automatically, according to intensity of illumination, illumination is carried out to switch control, realize external staff simultaneously and enter transformer substation high voltage chamber and protect chamber automatically to open illumination
On central processing unit, be also connected with protocol conversion process module, described protocol conversion process module is connected with state access controller by a fiber optic data communication interface module, to further process, detects data.State access controller is to carry out the conversion of Standardization Communication stipulations to substation illumination information, meet the DL/T860 of State Grid Corporation of China intelligent substation station communication transmission mark, described signal multi-channel signal acquiring circuit comprises optical sensor signal acquisition module, switching value acquisition module, realizes substation illumination remote switch and automatic illuminating.By the present invention, realized the round-the-clock tour of intelligent substation long-distance video, realize illuminator simultaneously and automatically open illumination according to photoenvironment, realize full-automatic management substation illumination, promote intelligent substation level.
Intelligent substation of the present invention is maked an inspection tour illumination control far away linkage, for transformer substation high voltage chamber, protection chamber, the lighting far distance intelligent controlling device of the indoor and outdoors such as place, video monitoring equipment with transformer station, intelligent patrol system forms intelligentized transformer station and entirely stands and make an inspection tour and linked system, realize used for intelligent substation patrol system backstage real time remote and controlled transformer substation high voltage chamber, the lighting device in protection chamber and place, according to the adaptive unlatching of ambient lighting situation and shutoff illumination, when starting intelligent patrol detection function, automatically open on-the-spot illumination auxiliary video shooting function and clearly the running status of transformer station is maked an inspection tour to monitoring.
Intelligent substation of the present invention is maked an inspection tour illumination control far away linkage, has can when patrol officer approaches equipment, automatically open illuminating lamp, be convenient to patrol officer's inspection device, solved in existing transformer station without automatic illuminating apparatus, be not easy to the advantages such as problem that staff patrols and examines.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that intelligent substation of the present invention is maked an inspection tour illumination control far away linkage.
Fig. 2 is the circuit diagram that intelligent substation of the present invention is maked an inspection tour the I/V change-over circuit of illumination control far away linkage.
Fig. 3 is the circuit diagram that intelligent substation of the present invention is maked an inspection tour the A/D change-over circuit of illumination control far away linkage.
Fig. 4 is the circuit diagram that intelligent substation of the present invention is maked an inspection tour the switch driving circuit of illumination control far away linkage.
Fig. 5 is the circuit diagram that intelligent substation of the present invention is maked an inspection tour the optical coupling isolation circuit of illumination control far away linkage.
Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment
Referring to accompanying drawing 1～Fig. 5, intelligent substation of the present invention is maked an inspection tour illumination control far away linkage, comprise optical sensor, control terminal and a plurality of electromagnetic relay, each electromagnetic relay of described a plurality of electromagnetic relays is connected with an illuminating lamp control the bright light of illuminating lamp and turn off the light; Described control terminal comprises central processing unit, power circuit, illumination signal acquisition circuit and illumination control circuit;
Described power circuit comprises AC/DC change-over circuit and DC/DC change-over circuit, and mains ac power supply is connected with described central processing unit with DC/DC change-over circuit by described AC/DC change-over circuit successively;
Described illumination control circuit comprises a plurality of relay drive circuits and a plurality of optical coupling isolation circuit; Each relay drive circuit and an optical coupling isolation circuit, be connected with a described electromagnetic relay on each optical coupling isolation circuit;
Described illumination signal acquisition circuit comprises an I/V change-over circuit and an A/D convertor circuit, and described optical sensor is connected with described central processing unit with described A/D convertor circuit by described I/V change-over circuit successively;
On described central processing unit, be also connected with a human body infrared induction module, whether described human body infrared induction module has people to approach or enter transformer substation high voltage chamber, protection chamber and place by induced signal automatic decision, and signal occurs to central processing unit when having people approach or enter; By central processing unit, send control signal and open illuminating lamp, patrol officer can be patrolled and examined equipment.
On described DC/DC change-over circuit, be also connected with a power supply identification module, adopt the red green light LED of high brightness 8mm straw hat.AC/DC change-over circuit is converted to direct current by 220V AC power, then by DC/DC change-over circuit, the direct current of AC/DC change-over circuit output is converted to central processor CPU acceptable low-voltage, for central processor CPU provides driving power.
Illumination signal acquisition circuit is realized illumination signal by the current analog signal collection amplifying circuit to optical sensor and is accessed, using illumination signal as one of condition of turning on light.Whether human body infrared induction module has people to approach or enter transformer substation high voltage chamber, protection chamber and place by induced signal automatic decision; When having people approach or enter, there is signal to central processing unit; By central processing unit, send control signal and open illuminating lamp, patrol officer can be patrolled and examined equipment.
On described central processing unit, be also connected with a running status identification module.Running status identification module is controlled and is started and shutoff by red and green four illuminations of difference variation expression, the red green light LED of employing high brightness 8mm straw hat.Central processing unit is connected with a Flash (data memory module), and described data memory module capacity can be adjusted according to the length of memory time.
On described central processing unit, be also connected with protocol conversion process module, described protocol conversion process module is connected with state access controller by a fiber optic data communication interface module.Protocol conversion process module adopts embedded core board independently to carry out protocol conversion, and transmits by fiber optic data communication interface module outbound data, has independently operation platform and powerful disposal ability.Protocol conversion process module is selected 6410 core boards, adopt Samsung S3C6410 processor, ARM1176JZF-S kernel, dominant frequency is 533MHz/667MHz, the data that gather are carried out to DL/T860 protocol conversion, and the described control terminal built-in fiber communication interface modules that was connected with state access controller CAC is realized the internal standard communication of intelligent substation station.
Described I/V change-over circuit comprises switching diode D1, switching diode D2, resistance R 1～R5, variable resistor W1～W3, capacitor C 1～C3, operational amplifier U1, operational amplifier U2;
Two ends after described switching diode D1 and switching diode D2 connection parallel with one another are connected on the link In of described optical sensor and the link GND of optical sensor; The positive pole of described switching diode D1 is connected with the negative pole of described switching diode D2; The link GND ground connection of described optical sensor; On the link In of described optical sensor and link GND, be connected on two inputs of described operational amplifier U1;
Described resistance R 1 is in series to be connected afterwards with described variable resistor W3 and is in parallel and is connected with described capacitor C 1, and these two ends that are connected in parallel are all connected on described operational amplifier U1; The sliding end of described variable resistor W3 is connected with operational amplifier U2 with resistance R 2 by capacitor C 2 successively; It is upper that the two ends of described variable resistor W1 are all connected to described operational amplifier U1, the sliding end connection+12V power supply of variable resistor W1;
One end ground connection of described resistance R 3, the other end is connected with operational amplifier U2; One end ground connection of described resistance R 4, the other end is connected with operational amplifier U2; The two ends of described resistance R 5 are all connected on described operational amplifier U2; It is upper that the two ends of described variable resistor W2 are all connected to described operational amplifier U2, the sliding end connection+12V power supply of variable resistor W2;
It is upper that one end of described capacitor C 3 is connected to described operational amplifier U1, and the other end is connected between capacitor C 2 and resistance R 2.If Fig. 2 is I/V change-over circuit of the present invention, specifically Fig. 2 is shown in the connection of each components and parts.I/V change-over circuit is connected between optical sensor and A/D convertor circuit, and its function is that the current signal of optical sensor output is converted to voltage signal, and this voltage signal is amplified and regulated after gaining sends to A/D convertor circuit.The output of operational amplifier U2 connects voltage signal output end Vout, connects the signal input pin of the AD conversion chip U3 in A/D convertor circuit.A/D convertor circuit sends to central processor CPU by the illumination signal after processing, by central processor CPU using illumination signal as one of Rule of judgment of whether turning on light.On illumination signal stronger daytime, even if detecting someone, human body infrared induction module approaches equipment, can not turn on light yet.Only, when the illumination signal at dark weather or night is weak, central processor CPU just can send the control signal of turning on light.
Described A/D convertor circuit comprises AD conversion chip U3, resistance R 6～R8, resistance R 20～R27, capacitor C 4～C13 and capacitor C 50～C57; One end of described resistance R 6～R8 is connected with 33V power vd D, and the other end of resistance R 6～R8 connects respectively CS terminal, RESET terminal and the PWDN terminal of AD conversion chip U3; One end of described capacitor C 4～C9 connects power supply AVSS, the other end of described capacitor C 4 is connected the VCAP1 terminal of AD conversion chip U3 with the other end of C5, the other end of described capacitor C 6 connects the VCAP2 terminal of AD conversion chip U3, the other end of described capacitor C 7 is connected the VCAP3 terminal of AD conversion chip U3 with the other end of C8, the other end of described capacitor C 9 connects the VCAP4 terminal of AD conversion chip U3;
Described capacitor C 10 is connected the VREFN terminal of AD conversion chip U3 with the one end after capacitor C 11 connection parallel with one another, described capacitor C 10 is connected the VREFP terminal of AD conversion chip U3 with the other end after capacitor C 11 connection parallel with one another; The VREFN terminal of described AD conversion chip U3 is also connected with power supply AVSS;
One end of one end of described capacitor C 12 and capacitor C 13 is connected with the DVDD terminal of AD conversion chip U3 and is connected with 33V power vd D, and the other end of the other end of described capacitor C 12 and capacitor C 13 is connected earth terminal AGND;
One end of described resistance R 20～R27 is external signal input, and the other end of resistance R 20～R27 is connected on terminal IN1N～IN8N of described AD conversion chip U3; One end of described capacitor C 50～C57 connects earth terminal AGND, and the other end of described capacitor C 50～C57 is also connected on terminal IN1N～IN8N of described AD conversion chip U3.
If Fig. 3 is A/D convertor circuit of the present invention, specifically Fig. 3 is shown in the connection of each components and parts.Illumination signal I/V change-over circuit being obtained by A/D convertor circuit carries out issuing central processor CPU after AD conversion, and central processor CPU is using illumination signal as one of Rule of judgment of whether turning on light.The other end of resistance R 20～R27, as external signal input IN1～IN8, can be accessed by the external signal on maximum 8 tunnels.
Described AD conversion chip U3 is ADS131E08.ADS131E08 is multichannel, synchronized sampling, 24 and 16 trigonometric integral (Δ Σ) analog to digital converters (ADC) series of products, and this product has a built-in programmable gain amplifier (PGA), internal reference and a plate and carries oscillator.ADS131E0x input can independently and directly be docked with measuring voltage with a resistor divider network or a transformer.This input can be docked with a current transformer or Rogowsky coil (Rogowski) to measure electric current, has high integration and outstanding performance.ADS131E0x has a flexible input multiplexer on every passage, and this multiplexer is generated signal to realize test, temperature and fault detect by separate connection to inside.Fault detect can be carried out at device inside, and this device is used the integrated comparator with the triggering level that controlled by digital to analog converter DAC.The data rate of ADS131E0x operation can be up to 64kSPS.
Described relay drive circuit comprises resistance R 800～R803, triode Q1 and triode Q2; Described resistance R 800 is connected with the base stage of described triode Q1, described triode Q1 grounded emitter, and one end of described resistance R 801 is connected with the collector electrode of described triode Q1, and the other end of described resistance R 801 is connected with the emitter of triode Q2; The two ends of described resistance R 802 are connected in the collector electrode of described triode Q1 and the base stage of described triode Q2; The two ends of described resistance R 803 are connected in the base stage and emitter of described triode Q2.
If Fig. 4 is relay drive circuit of the present invention, specifically Fig. 4 is shown in the connection of each components and parts.Relay drive circuit is connected between central processor CPU and optical coupling isolation circuit, wherein resistance R 800 connects central processor CPU, the collector electrode of triode Q2 (NET1 in Fig. 4 is tie point) is connected with the R401 (NET1 in Fig. 5 is tie point) of optical coupling isolation circuit, by the enlarging function of triode Q1 and triode Q2, improve the driving force of the IO mouth of central processor CPU.
Described optical coupling isolation circuit comprises resistance R 401～R402, capacitor C 401, Schottky diode D800, optocoupler O1 and optocoupler JQ1; Described resistance R 401 is all connected with described optocoupler O1 with capacitor C 401, and described optocoupler O1 is connected with optocoupler JQ1; One end of described R402 is connected between described optocoupler O1 and optocoupler JQ1, and the other end connects power supply VCC; The two ends of described Schottky diode D800 are all connected with described optocoupler JQ1; Described optocoupler JQ1 is also connected with the live wire ACL of mains ac power supply, and controlled electromagnetic relay is connected with optocoupler JQ1.
If Fig. 5 is optical coupling isolation circuit of the present invention, specifically Fig. 5 is shown in the connection of each components and parts.Resistance R 401 connects the collector electrode of the triode Q2 of relay drive circuit, receives the control signal of the central processor CPU after relay drive circuit is processed.Adopt two optocoupler O1 and optocoupler JQ1, optical coupling isolation circuit is arranged between electromagnetic relay and central processor CPU, has isolated input and output, and the alternating current of 220V and light current control element are kept apart, increase the antijamming capability of whole circuit, strengthened the functional reliability of linkage.The signal that central processor CPU sends sends to electromagnetic relay after the isolation of relay drive circuit amplification and optical coupling isolation circuit, thereby by the break-make of electromagnetic relay, controls the power supply of illuminating lamp, and then realizes the automatic control of turning on light and turning off the light.The 5RELAY1 terminal of optocoupler JQ1 connects for controlling one of them of 5 electromagnetic relays of illuminating lamp.220VACL terminal connects the live wire of 220V AC power, as the mains lighting supply of illuminating lamp.
Intelligent substation of the present invention is maked an inspection tour illumination control far away linkage; comprise optical sensor, control terminal and a plurality of electromagnetic relay; electromagnetic relay is connected with illuminating lamp; realize automatically, according to intensity of illumination, illumination is carried out to switch control; realize that external staff enters transformer substation high voltage chamber and protection chamber is opened illumination automatically, so that and used for intelligent substation patrol needs lighting far distance to control while forming system and the full station equipment of support Lai Dui transformer station of condition monitoring carries out omnibearing video tour simultaneously.
I/V change-over circuit in accompanying drawing 2 is to the processing of optical sensor input signal and conversion, for A/D conversion provides analog signal accurately.In accompanying drawing 3, A/D change-over circuit receives the signal of I/V change-over circuit, for CPU provides the digital information of standard.
On central processor CPU, be also connected with Flash (data memory module), clock circuit and watchdog circuit.Described data memory module Flash capacity can be adjusted according to the length of memory time.Clock circuit provides clock signal for central processor CPU.Watchdog circuit, is a part of single-chip microcomputer, in the debugging of Single Chip Microcomputer (SCM) program with in servicely all have great significance.Its major function is when there is software fault, by making device reset (if software is not by device zero clearing) by monolithic processor resetting.Also can be for device be waken up from dormancy or idle pulley, WatchDog Timer provides independently protection system to microcontroller, when system breaks down; after optional time out period; house dog will respond with RESET signal, when program crashes, make monolithic processor resetting.
Described protocol conversion process module is selected the high-performance processor based on Samsung S3C6410, ARM1176JZF-S kernel, can realize processing and the analysis of multitask, by with being used in conjunction with of core processing circuit, integrated illumination control signal, illumination condition information and the intelligent grid standard traffic of completing exported, simplify system in combination structure, directly outputting standard information is for used for intelligent substation patrol system platform.
Between described control terminal and external status access controller CAC, by fiber optic data communication interface module, carry out state information exchange, fiber optic data communication interface module selects network to turn multimode optoelectronic transceiver integrated module.This kind of communication interface, can improve communication speed, improves communication antijamming capability, extend communication distance, ensures communication reliability.
Intelligent substation is maked an inspection tour illumination control far away linkage monitoring illumination signal and human mobile signal, ensure that station intraoral illumination operates in need state, by used for intelligent substation patrol platform intelligent, make an inspection tour interlock simultaneously, the on-the-spot illumination of automatic start-stop, carrying out smoothly of synchronous cooperation video monitoring, guarantees the safety management to transformer station.
Embodiment recited above is described the preferred embodiment of the present invention, not the spirit and scope of the present invention is limited.Do not departing under the prerequisite of design concept of the present invention; various modification and improvement that this area ordinary person makes technical scheme of the present invention; all should drop into protection scope of the present invention, the technology contents that the present invention asks for protection, is all documented in claims.
Claims (7)
1. intelligent substation is maked an inspection tour illumination control far away linkage, it is characterized in that, comprise optical sensor, control terminal and a plurality of electromagnetic relay, each electromagnetic relay of described a plurality of electromagnetic relays is connected with an illuminating lamp control the bright light of illuminating lamp and turn off the light; Described control terminal comprises central processing unit, power circuit, illumination signal acquisition circuit and illumination control circuit;
Described power circuit comprises AC/DC change-over circuit and DC/DC change-over circuit, and mains ac power supply is connected with described central processing unit with DC/DC change-over circuit by described AC/DC change-over circuit successively;
Described illumination control circuit comprises a plurality of relay drive circuits and a plurality of optical coupling isolation circuit; Each relay drive circuit and an optical coupling isolation circuit, be connected with a described electromagnetic relay on each optical coupling isolation circuit;
Described illumination signal acquisition circuit comprises an I/V change-over circuit and an A/D convertor circuit, and described optical sensor is connected with described central processing unit with described A/D convertor circuit by described I/V change-over circuit successively.
On described central processing unit, be also connected with a human body infrared induction module, whether described human body infrared induction module has people to approach or enter transformer substation high voltage chamber, protection chamber and place by induced signal automatic decision, and signal occurs to central processing unit when having people approach or enter; By central processing unit, send control signal and open illuminating lamp, patrol officer can be patrolled and examined equipment.
2. intelligent substation according to claim 1 is maked an inspection tour illumination control far away linkage, it is characterized in that, is also connected with a running status identification module on described central processing unit.
3. intelligent substation according to claim 1 is maked an inspection tour illumination control far away linkage, it is characterized in that, on described central processing unit, be also connected with protocol conversion process module, described protocol conversion process module is connected with state access controller by a fiber optic data communication interface module.
4. intelligent substation according to claim 1 is maked an inspection tour illumination control far away linkage, it is characterized in that, described I/V change-over circuit comprises switching diode D1, switching diode D2, resistance R 1～R5, variable resistor W1～W3, capacitor C 1～C3, operational amplifier U1, operational amplifier U2;
Two ends after described switching diode D1 and switching diode D2 connection parallel with one another are connected on the link In of described optical sensor and the link GND of optical sensor; The positive pole of described switching diode D1 is connected with the negative pole of described switching diode D2; The link GND ground connection of described optical sensor; On the link In of described optical sensor and link GND, be connected on two inputs of described operational amplifier U1;
Described resistance R 1 is in series to be connected afterwards with described variable resistor W3 and is in parallel and is connected with described capacitor C 1, and these two ends that are connected in parallel are all connected on described operational amplifier U1; The sliding end of described variable resistor W3 is connected with operational amplifier U2 with resistance R 2 by capacitor C 2 successively; It is upper that the two ends of described variable resistor W1 are all connected to described operational amplifier U1, the sliding end connection+12V power supply of variable resistor W1;
One end ground connection of described resistance R 3, the other end is connected with operational amplifier U2; One end ground connection of described resistance R 4, the other end is connected with operational amplifier U2; The two ends of described resistance R 5 are all connected on described operational amplifier U2; It is upper that the two ends of described variable resistor W2 are all connected to described operational amplifier U2, the sliding end connection+12V power supply of variable resistor W2;
It is upper that one end of described capacitor C 3 is connected to described operational amplifier U1, and the other end is connected between capacitor C 2 and resistance R 2.
5. intelligent substation according to claim 1 is maked an inspection tour illumination control far away linkage, it is characterized in that, described A/D convertor circuit comprises AD conversion chip U3, resistance R 6～R8, resistance R 20～R27, capacitor C 4～C13 and capacitor C 50～C57; One end of described resistance R 6～R8 is connected with 33V power vd D, and the other end of resistance R 6～R8 connects respectively CS terminal, RESET terminal and the PWDN terminal of AD conversion chip U3; One end of described capacitor C 4～C9 connects power supply AVSS, the other end of described capacitor C 4 is connected the VCAP1 terminal of AD conversion chip U3 with the other end of C5, the other end of described capacitor C 6 connects the VCAP2 terminal of AD conversion chip U3, the other end of described capacitor C 7 is connected the VCAP3 terminal of AD conversion chip U3 with the other end of C8, the other end of described capacitor C 9 connects the VCAP4 terminal of AD conversion chip U3;
Described capacitor C 10 is connected the VREFN terminal of AD conversion chip U3 with the one end after capacitor C 11 connection parallel with one another, described capacitor C 10 is connected the VREFP terminal of AD conversion chip U3 with the other end after capacitor C 11 connection parallel with one another; The VREFN terminal of described AD conversion chip U3 is also connected with power supply AVSS;
One end of one end of described capacitor C 12 and capacitor C 13 is connected with the DVDD terminal of AD conversion chip U3 and is connected with 33V power vd D, and the other end of the other end of described capacitor C 12 and capacitor C 13 is connected earth terminal AGND;
One end of described resistance R 20～R27 is external signal input, and the other end of resistance R 20～R27 is connected on terminal IN1N～IN8N of described AD conversion chip U3; One end of described capacitor C 50～C57 connects earth terminal AGND, and the other end of described capacitor C 50～C57 is also connected on terminal IN1N～IN8N of described AD conversion chip U3.
6. according to the intelligent substation described in claim 1 and 2, make an inspection tour illumination control far away linkage, it is characterized in that, described switch driving circuit comprises resistance R 800～R803, triode Q1 and triode Q2; Described resistance R 800 is connected with the base stage of described triode Q1, described triode Q1 grounded emitter, and one end of described resistance R 801 is connected with the collector electrode of described triode Q1, and the other end of described resistance R 801 is connected with the emitter of triode Q2; The two ends of described resistance R 802 are connected in the collector electrode of described triode Q1 and the base stage of described triode Q2; The two ends of described resistance R 803 are connected in the base stage and emitter of described triode Q2.
7. according to the intelligent substation described in claim 1 and 2, make an inspection tour illumination control far away linkage, it is characterized in that, described photoelectric coupled circuit comprises resistance R 401～R402, capacitor C 401, Schottky diode D800, optocoupler O1 and optocoupler JQ1; Described resistance R 401 is all connected with described optocoupler O1 with capacitor C 401, and described optocoupler O1 is connected with optocoupler JQ1; One end of described R402 is connected between described optocoupler O1 and optocoupler JQ1, and the other end connects power supply VCC; The two ends of described Schottky diode D800 are all connected with described optocoupler JQ1; Described optocoupler JQ1 is also connected with the live wire ACL of mains ac power supply, and controlled electromagnetic relay is connected with optocoupler JQ1.
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| CN110332493A (en) * | 2019-05-23 | 2019-10-15 | 贵州电网有限责任公司 | Substation's night inspection lighting device |
| CN112594624A (en) * | 2020-12-03 | 2021-04-02 | 国网山东省电力公司滨州供电公司 | Lighting control system of transformer substation |
| CN112911772A (en) * | 2021-01-20 | 2021-06-04 | 上海地铁维护保障有限公司 | Circuit for improving energy-saving efficiency of ground substation illumination |
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| CN112911772A (en) * | 2021-01-20 | 2021-06-04 | 上海地铁维护保障有限公司 | Circuit for improving energy-saving efficiency of ground substation illumination |
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