CN2147540Y - Remote controlling transformation measuring box - Google Patents

Abstract

The utility model relates to a remote controlling transformation measuring box for preventing electricity stealing in power management stations, etc., mainly comprising a box body, a control circuit, a watt-hour meter and a current transformer. A control part is composed of an executive terminal device and a decoding receiving circuit (board). The remote control is realized by an infrared remote controlling transmitter which is matched with the remote controlling transformation measuring box. The utility model has the advantages of high safety, high reliability.

Description

Remote controlling transformation measuring box

The utility model relates to a kind of remote control distribution transforming batch meter that prevents on the substation transformer that stealing from using that is equipped in.

China electric industry department is in a backward condition in the management of power use at present, user's stealing electricity phenomenon is very serious, show according to interrelated data, 1,500,000 operation power platform districts, the whole nation, about 3,000,000,000 kilowatt hours of the annual stealing of platform district electrician, be equivalent to the generated energy in 1 year in one 500,000 kilowatts generating plant, caused very big economic loss to country.The electrician is for escaping the electricity consumption metering, and by the electric energy meter stealing of substation transformer, its way is: electricity consumption before the table, and meter voltage coil opens circuit; Change current transformer phase place etc., to cause counting mechanism of a meter to stop and contrary counting.Power supply department is for preventing electrician's stealing, with batch meter watt-hour meter and mutual inductor are closed in one with low pressure porcelain bushing shell, the zero line porcelain bushing shell of substation transformer, but the present electricity distributing and metering case that uses, generally adopt conventional door lock joint sealing, the electrician can prepare key privately and unpacks like this, stealing still often takes place, therefore, electricity is looked in the patrol of having to of each electricity management department, still, because each operation power platform district high degree of dispersion, have ageing because of looking into electricity again, the potential randomness of electrician's stealing although pay a large amount of manpower and materials, can't be safeguarded the electricity consumption order fully and effectively; It is simple dealing electricity relation that rural power was once carried out county, township, administrative village, the losss that in operation, produce at different levels, with improving electricity price, extra charges go compensation, this pure merchandising mode, not only abandoned the management of power use, the economy harm that also stealing is caused is simultaneously married again on one's body the peasant household in a disguised form.Ubiquity low pressure line loss height, disorderly raises the price (two Senior Two are disorderly) at low pressure electricity price height, arbitrary imposition of fees, serious contusion the peasant do the electric heating feelings, suppressed the development of rural power cause and agricultural production.For this reason, the Ministry of Public Security of Ministry of Energy once united issue " bulletin of opposing electricity-stealing ", wished to develop a kind of anti-electricity-theft device effectively.

The purpose of this utility model is exactly at electrician's stealing mode and the unattended characteristics of substation transformer field work, overcomes the conventional door lock joint sealing of distribution transforming batch meter, the drawback that key is unpacked, and a kind of distribution transforming of remote control safely and effectively batch meter is provided.

The purpose of this utility model is achieved like this, the distribution transforming batch meter of usefulness is now unpacked by key, be designed to dress decoding receiving trap in the casing, and adopt the remote control of cipher instruction transmitter to open batch meter, electric energy measurement instrument is with the low pressure of substation transformer, and the zero line porcelain bushing shell is sealed in the casing, avoids the preceding low-voltage line of measuring instrument and table exposed, draw three-phase and four-line low-voltage cable (line) through metering from casing, for user's power electricity consumption and household electricity.

The utility model is easy to install, security insurance, and power-steeling preventing effect is good, has application prospect widely, and society and economic benefit are very remarkable.

Below in conjunction with accompanying drawing the structure of the present utility model and the situation of installing and using are elaborated.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the front view of casing.

Fig. 3 is the right view of casing.

Fig. 4 carries out the Electromechanical Control vertical view cutaway drawing of terminal for the utility model.

Fig. 5 carries out the Electromechanical Control side view cutaway drawing of terminal for the utility model.

Fig. 6 is the utility model decoding receiving circuit theory diagram.

Fig. 7 is the utility model decoding receiving circuit schematic diagram.

Fig. 8 is the remote control transmitter theory diagram that is used with the utility model.

Fig. 9 is the remote control transmitter circuit theory diagrams that are used with the utility model.

Figure 10 is a remote control transmitter profile synoptic diagram.

Figure 11 is the substation transformer synoptic diagram.

By Fig. 1-3 as can be known, the utility model is by casing 9, carries out end device 16, decoding receiving circuit (version) 17, and watt-hour meter 18, current transformer 19, fixed mount 21 is formed.And by the control of the telepilot shown in Figure 10,9 unlatching.Remote control transmitter is by circuit 28 shown in Figure 9 and shell 20, and transmitting instructions key 1, remote control indication luminotron 2, infrared remote control receiver window 4 are formed.Casing 9 tops are waterproof case lid 15, a left side, there is vent window 27 on the right side, one side lower part has wire hole 26, there is chamber door 8 the casing front, the inboard is equipped with and is carried out end device 16 and decoding receiving circuit (version) 17, is used to control the unlatching of chamber door, and there is infrared remote control receiver window 4 on the chamber door surface, power supply indication luminotron 5, power supply initiate key 6, language alarm window 7 is provided with the torsion spring 14 that opens the door in the hingen, be used to flick chamber door, on the erecting frame in the case chamber 25 watt-hour meter 18 is housed, current transformer 19, bottom half have fixed mount 21, when installing and using, be fixed in as shown in figure 11 substation transformer upper end cover 22 low-pressure sides with the anti-strap bolt that unloads.25 enclose low pressure porcelain bushing shell 23 from the case chamber, and zero line porcelain bushing shell 24 is pressed three-phase and four-line active energy metering figure and connected mutual inductor and watt-hour meter, draws three-phase and four-line cable (line) from the wire hole 26 on casing right side, for user's power electricity consumption and household electricity.Knocker 12 is arranged in the casing, touch chamber door 8, locking voluntarily puts in place.

Principle of work division of the present utility model is as follows:

1, decoding receives

Fig. 6 receives functional-block diagram for decoding, form by 10 circuit parts, be respectively infrared pre-arcing road IC1, decoding scheme IC2, sequential decoding IC circuit 5 for expansion coding and decoding capacity, make the coding and decoding matrix circuit that code switch is formed with DIP, realize the synchronous bidirectional analog on-off circuit IC3 of sequential, the not gate IC9-3 of false proof interrupt circuit is with door IC6-2, biconditional gate IC6-1, locking key type relay J 2, language warning circuit IC8, time-delay is from shutdown circuit IC9-2, current switch IC11, relay J 1,2 * 2 is from resetting button AN1-1.2, alternating current-direct current automatic switch-over circuit D8D9 and mu balanced circuit IC10 and terminal control circuit, by shown in Figure 7, circuit structure and function division are as follows:

Start 2 * 2 from resetting power switch AN _1-1.2, the 220V alternating current passes through AN _1-1Moving together contact is through power transformer B step-down, D ₆D ₇Full-wave rectification, C ₁₄Filtering, output 9V DC voltage.Pass through AN again _1-2Moving together contact is through C ₁₆C ₁₈Cut down ripple, IC ₁₀Voltage stabilizing, C ₁₇C ₁₉Decoupling, output 5V DC voltage.Divide two-way power supply, the one tunnel for decoding scheme; Another road is for carrying out terminal.

After decoding scheme powers on, at first, C ₆R ₆Differentiating circuit makes 12 grades of binary counter IC ₇Zero clearing, and pass through or door IC _9-1Homophase output high level makes sequential decoder IC ₅Zero clearing, decode machine enter initial holding state.Meanwhile, the time-delay automatic shutdown circuitry enters work.Time integral circuit R ₁₀C ₉Begin charging, not gate IC _9-2The output high level, the high-current switch integrated circuit (IC) ₁₁Conducting, V ₂Through R ₁₆The excitation conducting, relay J ₁Get electric adhesive, its normally opened contact J ₁Connect.Even unclamp power initiation key AN this moment _1-1.2, the circuit self-insurance still works on power, after 1 minute, and R ₁₀C ₉Charging finishes, IC _9-2Output low level, IC ₁₁5 pin be lower than threshold value and turn-off V ₂No driving voltage ends, J ₁Discharge, realize time-delay shutdown automatically, make the circuit static zero consumption.D ₈D ₉Be the alternating current-direct current automatic switch-over circuit, during mains supply, because of D ₈Current potential is a little more than D ₉, D ₉End, reserve battery DC withdraws from circuit, during grid power blackout, and D ₈By D ₉Conducting, reserve battery DC enters work synchronously.D ₈D ₉Can avoid producing between rectifier power source and the reserve battery electric current effectively pours in down a chimney.D ₄Be red light emitting diodes, do the power supply indication.

When telepilot emission telecommand, infrared receiver tube D ₁Change light signal into electric signal, be added to infrared preamplifier IC ₁Input end 1 pin.The circuit amplitude limit amplifies in chip, bandpass filtering, and peak detection, the hysteresis shaping is from 7 pin output remote control coding.Through IC _4-1Anti-phase, serial is input to code translator IC ₂16 pin.Adjust R ₂Resistance makes IC ₁The logical frequency of band is corresponding with the telepilot carrier frequency.

Code translator IC ₂Carry out work, clock 55KHz by unified sequential timesharing.Decoding scheme is provided with the decoding matrix identical with remote control transmitter, supplies the person of the checking meter basis any preset address password of needs separately.When telecommand arrives, IC ₂On-chip circuit is through the instruction demodulation, and address scan is discerned by turn, and four frames are checked, and discriminate wrong zero clearing, deposit the output supervisor.Its output terminal 17 pin change low level into by original noble potential.This low level, the one tunnel through IC _4-2Anti-phase saltus step is Gao Ping, makes sequential decoder IC ₅Carry, another road make bidirectional analog switch I C ₃End, interrupt IC ₂Current carrying out deposit output state, guarantee that code translator and sequential decoder change new translator synchronously over to.When telecommand is complete chronologically inerrably send 12 identification codes and 36 bit data sign indicating numbers after, IC ₅' counting input CP end will receive 4 count pulses, Q ₁To Q ₄High level successively goes forward one by one.Q ₄During end arrival high level, warp and door IC _6-2Gating output high level goes control to carry out terminal, realizes the remote control purpose.Simultaneously, Q ₄High level through R ₇C ₇The time-delay, by or the door IC _9-1Homophase output high level, IC ₅The zero clearing that resets, decode machine reenters holding state.

D ₂C ₃R ₈With not gate IC _9-3Form false proof interrupt circuit.During normality, IC ₅Q ₀The noble potential of end is by diode D ₂, make IC _9-3The input end clamper in noble potential, pseudo-anti-interrupt circuit is not worked.When taking place to sound out, will show two kinds of situations.Because the sequential of telecommand is elder generation's compiling manufacturer ID, the numeric data code of back compiling power supply department is soundd out and is instructed when identification code not occurring, just can't realize the remote control purpose first step, IC ₅Q ₀The current potential no change of end, anti-tseudo circuit stays out of.After souning out instruction appearance identification, IC ₅Q ₀End becomes electronegative potential by noble potential, and false proof interrupt circuit is because of D ₂Enter the state of alert by promptly.C ₈R ₈Charging time-delay be 10 seconds, sound out the people must be in limiting time the complete numeric data code that inerrably sends.Otherwise, IC _9-3Because of time-delay finishes output high level, one-way SCR T ₂Triggering and conducting, locking key type relay J ₂Adhesive, J _2-2Normally opened contact is connected AC power, cancels J ₁The time-delay function of shutting down automatically.J _2-1Normally opened contact is connected language warning circuit IC ₈, IC ₈Insert " mustn't sound out, stealing is illegal " warning with repeating.Simultaneously, biconditional gate IC _6-1Input end add high level, its output terminal is a low level, blocks and a door IC _6-2, from then on refusal is soundd out.

Because J ₂Be latch-type relay, in case adhesive, remember condition is constant after the power down.Therefore, the high pressure fall insurance of the intentional disjunction substation transformer of electrical network temporary interruption or electrician all can not be removed alarm.

After power supply department is found alarm, need launch 1024 right instructions, 12 grades of binary counter IC continuously to remote control distribution transforming batch meter ₇Q ₁₀End output high level, biconditional gate IC at this moment _6-1The output high level is with door IC _6-2Block and remove by gating.As sequential code translator IC ₅Q ₄During end arrival high level, with door IC _6-2The output high level is carried out terminal and is opened batch meter.Take the decoding receiver apart, click locking key type relay J ₂Reset button, remove promptly to accuse and finish.

The execution terminal structure is an electromechanical integration.See shown in Fig. 4,5 that its circuit part is by one-way SCR T1, servo switch K, motor (M) 29, sustained diode 5 is formed.Mechanical driving part is by lock frame 30, from the slide plate 11 that resets, realize from the extension spring 13 that resets, be assemblied in the eccentric wheel 10 on the motor shaft extension, with slide plate be the displacement lever 31 of one, spacing guiding cylinder 32 is formed, be processed with slide rail on the plane of the tail end of slide plate 11, slide rail is along the guide and limit post, and overcoming extension spring 13 elastic force can be shifted front and back, and slide plate tongue chamfer and knocker 12 are cut mutually, can seal chamber door gently slidingly, motor stepping one all slide plates 12mm that moves backward promptly throws off knocker, simultaneously at the hingen torsion spring 14 twisting force lower fans door of unpacking.With door IC _6-2During the output control signal, pass through R ₁₃C ₁₃Anti-jamming circuit, single silicon T1 triggering and conducting, motor M power on and turn round counterclockwise.Motor (M) 29 axial moments are by eccentric wheel 10, touch from resetting slide plate 11 displacements, and when 180 ° of M runnings, slide plate 11 is thrown off knockers 12, and the chamber door 8 torsion spring 14 torsional forces fan that opened the door is opened 180 °, realizes the remote control purpose.When M ran to 300 °, the slide plate 11 that resets was certainly resetted by extension spring 13 pulling force.When M runs to 320 °.Servo switch K is cut the position closure by eccentric wheel 10, and T1 is less than keeping current cut-off, and motor M is remained in operation by the K power supply.Servo switch K resetted when M ran to 340 °, M outage, and inertia remains in operation 20 °, and all M are static awaits orders in stepping one.

2, remote-control transmitting

Fig. 8,9 is depicted as the remote control transmitter theory diagram.Circuit is a core with the extensive coding and decoding chip of CMOS, is carrier with the infrared ray, by the encoder matrix sequence scanning, launches 12 identification codes and 36 bit data sign indicating numbers continuously.Identification code is intended to distinguish manufacturer, is solidified in circuit by producer.Numeric data code is represented management of power use department, is preset arbitrarily according to needs separately by the person of checking meter.Be provided with erasable DIP in the circuit specially and beat a yard matrix.The common complete directive statement of forming of identification code and numeric data code all uses " 0 " and " 1 " binary code to represent.The command capacity of remote control transmitter is 2 ⁴⁸Word, infrared ray carrier frequency 32768Hz, 30 ° of infrared ray firing angles be from axle, battle range 0.1-8m.

By shown in Figure 9, IC ₁Be scrambler, 18 pin dual-in-line plastic packagings adopt 12 bit pulsewidth codings modulation.The 1-12 pin is the coded address line, and pull-up resistor is arranged in the sheet.Every address wire selectively operating is in " 0 " and " 1 " two kinds of states, and device itself only can edit and release 2 ¹²The mutually different instruction of bar content.R ₁C ₁Meet IC ₁On-chip clock generator guarantees chip time-sharing work under unified sequential.Under the effect of chip clock, the emulation mode of 12 bit address lines sends continuous programming code, exports from 16 pin serials.Dutycycle is the expression code " 0 " of 1:2, pulsewidth 0.32ms, and dutycycle is the expression code " 1 " of 2:1, pulsewidth 0.64ms.The cycle of editing and releasing of 12 bits is 11.52ms, synchronizing pulse 0.32ms.

Because the finite capacity of existing coding and decoding device, low being easy to of capacity decoded, and for realizing the coding and decoding expansion, makes it become the coder of over capacity level, and the utility model is IC ₁12 bit address lines and not gate IC ₄4 bit addressing lines, formed 12 * 4 encoder matrixs.Decimal system sequential decoder IC ₃At not gate IC _2-3.4Under the scan clock effect of forming,,, make scrambler IC by to the encoder matrix sequence scanning with program timesharing addressing mode ₁Code capacity expand to 2 ⁴⁸2814749.76710656 hundred million mutually different cipher instructions of content can be edited and released in word.This method can be expanded arbitrarily in theory, looks the product actual needs and determines, and be suitable for other similar coding and decoding chip.

Encoder matrix can solidify with EPROM, has adopted the DIP fine motion to make code switch here, can wipe and can write any prepositioned instruction, need not special programming device and operation general knowledge, adapt to the power management station of basic unit, actual application level.

Remote control transmitter complete machine principle of work is as follows:

Touch remote-control transmitting key AN, circuit powers on, because capacitor C ₂Both end voltage can not be suddenlyd change, R ₂C ₂Negative pulse forms circuit and divides two the tunnel to act on controll plant.One the tunnel through IC _2-1IC is given in paraphase ₃R end apply a differential positive pulse, make its start zero clearing enter original state; Another road is added in IC _2-3.4And R ₃C ₃The sequence scanning generator of forming guides its output terminal of clock to begin to enter the clock period from noble potential.Though IC ₃Counting input CP end trigger effectively for rising edge, but when R holds zero clearing, can not trigger IC ₃Carry.Work as IC ₃After the zero clearing, its Q ₀End is inserted high level, and all the other output terminals are low level.Q ₀High level through not gate IC ₄-1 anti-phase low level that becomes.At this moment, first in encoder matrix row, promptly manufacturer ID at first addressing choose.Scrambler IC ₁Continuous four codings of 12 bit address of choosing are sent,, enter into Sheffer stroke gate IC from 16 pin serials output _5-1.2, crystal oscillator J _ZAnd R ₄The coding demodulator of forming is modulated at coded order on the 32768Hz carrier frequency.Modulation signal is through IC _5-3.4Buffering, excitation V ₁Base stage.V ₁Collector is connected to infrared emission tube D ₁, D ₁Be driven the coded order after the modulation, be mapped to space outerpace by the emitter window width of cloth.V ₁Collector be connected to red light emitting diodes D in addition ₂, play the remote control indicative function.

Through the 100ms clock period, identification code has been finished four transmissions.IC _2-3.4The sequence scanning generator of forming produces the 2nd scan clock.IC ₃Q ₁End goes forward one by one and is high level, and all the other output terminals are low level, through IC _4-2Anti-phase is low level, chooses corresponding data line sign indicating number in the encoder matrix, by IC ₁Continuous four codings send.Under the effect of sequential clock, Q ₂Q ₃End in like manner will be exported high level successively.When the 5th scan clock arrived, matrix coder all sent and finishes IC ₃Q ₄End goes forward one by one and is high level, through IC _2-2.1Anti-phase output high level, IC ₃Zero clearing resets, and repeats to enter new coded program.Remote control transmitter is allotted to power management station, institute.

The utlity model has following characteristics:

1, transformation measuring box Hang locking of Zi in the body, You ultra-red order transmitter Yao is controlled unlatching.

2, command capacity Wei 2814749.76710656 Yi, except the legal person of checking meter of power supply department, other people are difficult the decoding extremely.

3, circuit is provided with erasable encoder matrix, and the person of checking meter is Zhied order according to any Yu Zhi of Xu Yao separately.

4, i.e., interruption takes place to sound out and carry out terminal, and trigger the alarm of " mustn't sound out, stealing is illegal " language, unless power supply department is removed with particular form.

5, the AC and DC electricity automaticallyes switch, and grid power blackout still can be unpacked and be checked meter or electric power overhaul.

6, time-delay shutdown automatically, static zero consumption.

7, remote control transmitter singly-bound firing order is manipulated easy.

8, same telepilot is rewritten instruction at random, can manage different operation power platforms district.

Of the present utility model applying will provide great convenience for electricity management department, produces remarkable social benefit and economic benefit, benefits the nation and the people, and plays immeasurable effect to opposing electricity-stealing.

Claims (4)

1, by casing, control circuit, the remote control distribution transforming batch meter that watt-hour meter and current transformer are formed, execution end device (16) and decoding receiving circuit (version) (17) are equipped with in chamber door (8) inboard that it is characterized in that casing (9) front, chamber door has infrared remote control receiver window (4) on the outside, power supply indication luminotron (5), power supply initiate key (6), language alarm window (7), portion is case chamber (25) in the casing, on the erecting frame in it plating table (18) is housed, current transformer (19), casing top is case lid (15), there is vent window (27) left and right sides, one side lower part has wire hole (26), and fixed mount (21) is arranged at the bottom, and box inside also is equipped with and carries out the knocker (12) that locking that end device matches is used.

2, remote control distribution transforming batch meter according to claim 1, it is characterized in that described decoding receiving circuit (version) is by infrared pre-arcing road IC1, decoding scheme IC2, the sequential decoding IC circuit 5 of expansion coding and decoding capacity, make the coding and decoding matrix circuit that code switch is formed with DIP, realize the synchronous bidirectional analog switch I C3 of sequential, the not gate IC9-3 of false proof interrupt circuit, with door IC6-2, biconditional gate IC6-1, locking key type relay J 2, language warning circuit IC8, time-delay is from shutdown circuit IC9-2, current switch IC11, relay J 1,2 * 2 from resetting button AN1-1.2, alternating current-direct current automatic switch-over circuit D8D9 and mu balanced circuit IC10, the zero clearing that is used to start shooting or door IC9-1, the control that is used to remove anti-12 grades of binary counter circuit IC7 of pseudo-interrupt and electromechanical integration is carried out middle-end and is formed.

3, the control distribution transforming batch meter that shakes according to claim 1 is characterized in that said execution end device electromechanical integration, and its circuit part is raised the clothes K switch by under the one-way SCR, motor 29, sustained diode ₅Constitute, mechanical driving part is by lock frame 30, reset and slide 11 certainly, realize from the extension spring 13 that resets, be assemblied in the eccentric wheel 10 on the motor shaft extension, with slide plate 11 be the displacement lever 31 of one, spacing guiding cylinder 32 is formed, the slide plate tail end has slide rail on the plane, slide rail is along the guide and limit post, and slide plate tongue chamfer and knocker 12 are cut mutually.

4, remote control distribution transforming batch meter according to claim 1, it is characterized in that said remote control is by by shell 20, have emitter window 3 on it, and the emission key on inner electrical equipment 28 and the shell 1, indication luminotron 2 infrared remote-control emitter formed is realized.

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