CN104852465A - Multifunctional electric power supply remote control method and device - Google Patents
Multifunctional electric power supply remote control method and device Download PDFInfo
- Publication number
- CN104852465A CN104852465A CN201410264322.7A CN201410264322A CN104852465A CN 104852465 A CN104852465 A CN 104852465A CN 201410264322 A CN201410264322 A CN 201410264322A CN 104852465 A CN104852465 A CN 104852465A
- Authority
- CN
- China
- Prior art keywords
- power
- circuit
- terminal
- instruction
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a multifunctional electric power supply remote control method. A front end control unit and a terminal control unit are provided. Terminal load instructions are transmitted in a passive manner. The on-off state of a front end electric power supply is controlled by a terminal load. When the terminal load does not work, an electric power transmission line is in a no-power state; and when the terminal load works, the terminal control unit sends an electricity utilization instruction to the front end control unit. After the front end unit receives the instruction of the terminal control unit, identification is carried out, and if the instruction is judged to be right, a power supply loop is automatically turned on, so that the electric power transmission line is provided with electric power to be transmitted to the terminal load, the load starts to work after receiving the electric power, and the front end electric power supply continuously supplies power. According to the invention, the electric power transmission line itself is used for transmitting the instruction, and a remote passive control transmission mode in which a load terminal controls a power supplying front end, so that the reliability of electric power transmission is ensured, losses caused by electric power transmission is avoided, the carbon emission capacity is reduced simultaneously, the electric energy is saved, and the safety of electric power is improved.
Description
Technical field
The invention belongs to power electronics control technology field.Relate generally to a kind of multifunction power developing Of Remote Control Power method and device.Be applicable to the electrical transfer of electric supply.
Technical background
Electric supply transmission is for the very important link of electrical domain.The mode of " front end " control " terminal " that what the control device of current electric power transfer generally adopted is.Described " front end " refers to " source " or the sending end of electric supply." terminal " refers to power consumption equipment.The supply of front-end control transmission line power source or shutoff, terminal power consumption equipment is a passive controlled side.Front-end control power transmission, transmission line just has electricity supply, and no matter terminal equipment whether electricity consumption, circuit has all the time electricity confess.No matter namely say that terminal equipment electricity consumption or not electricity consumption all do not associate with front-end control.This transmission control form is exactly front-end control terminal form.In actual use, this transmission control form is very common and phenomenon very widely.But practice repeatedly proves that this form also exists some shortcomings part.The first, line powering provides for power consumption equipment, if during power consumption equipment not electricity consumption, circuit is still powered, causes power transmission loss, increases the discharge capacity of carbon.The second, during equipment not electricity consumption, circuit continues there is electricity, and to device security, personal safety all also exists harm.Because equipment is still connected with transmission line, time on circuit as there is the phenomenons such as overvoltage thunder and lightning, directly damage power consumption equipment.3rd, in transmission line power supply process, when there is disconnection fault, front-end control is generally not automatic cut-off power, and the circuit of broken string, as fallen on the ground, very easily causes people, animal, animal's electric shock accident.At the existing repeatedly declaration of an accident of this point.4th, this form front end is ACTIVE CONTROL, and terminal is controlled, and both sides authority is uneven, and terminal is passive all the time, and in actual production, and electricity consumption side is sought after supply into control electric supply initiatively or cut-out.How changing this form, eliminate the shortcomings and deficiencies of the many existence of this form, fundamentally solve device security, personal safety, the problems such as line loss, is namely the problem to be solved in the present invention.
Summary of the invention
Object of the present invention produces thus, proposes a kind of multifunction power developing Of Remote Control Power method and device.Power transmission line itself is utilized to transmit instruction, adopt the remote passive controls transfer mode of " load terminal " control " power transmission front end ", make the supply of front end electric supply or turn off to be controlled by terminate load, when terminate load does not work, power transmission lines is in electroless state, only when terminate load works, power transmission line just there is electric power be sent to terminate load.Both ensure the reliability of electric power transfer, turn avoid the loss that delivery of electrical energy causes, reduced the discharge capacity of carbon simultaneously, saved electric energy, improve the fail safe of electric power transfer.And make power-supplying forms more convenient, range of application is more extensive.
The present invention realizes the technical scheme that above-mentioned purpose takes: a kind of multifunction power developing Of Remote Control Power method, comprise front-end control unit and Terminal Control Element, passive transmission is taked in terminate load instruction, supply or the shutoff of front end electric supply are controlled by terminate load, when terminate load does not work, power transmission lines is in electroless state, during terminate load work, Terminal Control Element forward end control unit sends electricity consumption request instruction, after front-end control unit receives the instruction of Terminal Control Element, through identifying, after correct judgment, automatically closed current supply circuit, make power transmission line has electric power be sent to terminate load, load obtains electric starting working, the supply of front end electric supply will continued power.
Front-end control unit of the present invention adopts double bridge balancing technique and twin voltage to compare balancing technique and realizes teleinstruction identification, utilize the DC impedance of power transmission lines and load terminal primary as the brachium pontis of in double bridge, at ordinary times, the primary of outside line terminal is in disjunction state, bridge circuit is in uneven form, PLC will not identify, the primary DC impedance of terminal and double bridge is only had to match, just poised state can be reached, PLC F just can send startup control command, make relay adhesive, relay tip switching motion, AC power exports, simultaneously, cut off double bridge identification loop, complete the function of Long-distance Control.
What Terminal Control Element of the present invention adopted is infrared electro matrix blocking type coupled identification technology, when load terminal is not got involved in photoelectrical coupler, identification circuit can not send power supply instruction, even if receive enabled instruction, remote power can power transmission, but still can not send power supply instruction owing to not having load to get involved, power supply still can not export, only have load terminal to get involved in photoelectrical coupler, start power transmission instruction, just complete automatic power function.
The present invention realizes the device of preceding claim multifunction power developing Of Remote Control Power method, comprise front-end control unit and Terminal Control Element, described front-end control unit is primarily of complete machine power circuit, power limit circuit, teleinstruction identification decision circuitry and control, executive circuit forms, described complete machine power circuit provides+12V for relay and control circuit, the direct-current working volts power supply of+5V, described power limit circuit realizes standby power restriction and maximum power restriction, described teleinstruction identification decision circuitry is by double bridge balance and twin voltage balance, utilize transmission line and the elementary DC impedance of terminal transformer as the brachium pontis of in double bridge, realize remote passive instruction identification, described control, executive circuit passes through adhesive or the release of control relay, perform the supply to power supply or shutoff, whether described Terminal Control Element circuit gets involved identification circuit, instruction identification executive circuit formation primarily of complete machine power-supply circuit, load terminal, described complete machine power-supply circuit provides+12V for relay and control circuit, the direct-current working volts of+5V, whether described load terminal gets involved identification circuit adopts infrared electro matrix blocking type coupled identification technology to realize the function that load gets involved identification automatically, the adhesive of control relay, described instruction identification executive circuit passes through adhesive or the release of control relay J, performs the supply to power supply or shutoff.
The power limit circuit of front-end control unit of the present invention is primarily of power transformer B2, bridge heap rectification Q2, filter capacitor C2, voltage-stabiliser tube Dw, adjustable resistance Rw1, isolating diode D2, D3, resistance R16, R17, R15, R14, R23, R22, first amplifier X1, second amplifier X2 and the first logical AND gate circuit H2B, second logical AND gate circuit H3C forms minimum power restriction and maximum power limiting circuit, 6 pin of the first amplifier X1 and resistance R16, R15 connects, reference voltage is provided, its 5 pin is connected with resistance R25 and isolating diode D3, comparative voltage is provided, when comparative voltage is higher than reference voltage, first amplifier X1 output switching activity, PLC F sends power cutoff instruction, 2 pin of the second amplifier X2 are connected with resistance R17, R14, provide reference voltage, and its 3 pin is connected with resistance R22 and isolating diode D2, provides comparative voltage, and the second amplifier X2 output switching activity, PLC F sends continued power instruction.
The overvoltage protection circuit of front-end control unit of the present invention primarily of adjustable resistance Rw2, resistance R20, R19, voltage comparator Z1, AND gate H1A, diode D4 forms, and 2 pin of voltage comparator Z1 and resistance R20, R19 connect, reference voltage is provided, 3 pin of voltage comparator Z1 are connected with adjustable resistance Rw2, provide comparative voltage, when comparative voltage is higher than reference voltage, voltage comparator Z1 output switching activity, PLC F sends and turns off power supply instruction.
The teleinstruction identification decision circuitry of front-end control unit of the present invention is primarily of two changeover contact relay J 1, J2, resistance R2, R3, R4, R5, R6, R7, first voltage comparator Y1, second voltage comparator Y2 and AND gate H4D forms, 2 pin of the first voltage comparator Y1 are connected with resistance R2, two changeover contact relay J 1, outside line N, 3 pin of the first voltage comparator Y1 are connected with resistance R4, R5, provide reference voltage; 5 pin of the second voltage comparator Y2 are connected with resistance R6, R7, reference voltage is provided, 6 pin of the second voltage comparator Y2 are connected with resistance R3, two changeover contact relay J 2, outside line L, wherein: the elementary DC impedance of transformer B1 of resistance R2, R3, R4, outside line N, two changeover contact relay J 1 and load terminal forms the first bridge circuit; The elementary DC impedance of transformer B1 of resistance R5, R6, R7, outside line L, two changeover contact relay J 2 and load terminal forms the second bridge circuit, forms double bridge balancing technique.First voltage comparator Y1, the second voltage comparator Y2 and AND gate H4D form twin voltage and compare balancing technique.
The creepage protection function circuit of Terminal Control Element of the present invention is primarily of zero-sequence transformer B2; bridge heap rectification Q2, filter capacitor C2, voltage-stabiliser tube Dw; triode T1; diode D5, resistance R2, R3 form, and the number of turns of L1, L2 of zero-sequence transformer B2 is equal; phase place is contrary; the input that rectification Q2 piled by L3 and the bridge of zero-sequence transformer B2 is connected, and output termination filter capacitor C2, voltage-stabiliser tube Dw, the triode T1 of bridge heap rectification Q2 connect, and the output of triode T1 is connected with resistance R2, diode D5.
Whether the load terminal of Terminal Control Element of the present invention gets involved identification circuit primarily of photoelectrical coupler H1, H2, diode D2, D3, resistance R4, R5, R6, R7, R8 form, what photoelectrical coupler H1, H2 adopted is infrared electro matrix blocking type coupled identification technology, control the change of diode D2, D3 output potential, reach the operating state controlling triode T2.
The instruction identification executive circuit of Terminal Control Element of the present invention is primarily of AND circuit Y, triode T2, relay J forms, AND circuit Y is instruction recognition means, only have when 1 pin of AND circuit Y and 2 pin are all high level, triode T2 could conducting, and relay J just understands adhesive, when 1 pin of AND circuit Y and 2 pin have one to be low level, discharge immediately when triode not adhesive or adhesive.
The present invention changes conventional electric power transmission control theory, and namely conventional electric power transmission is front end power transmission or power-off, terminate load electricity consumption, belongs to front-end control terminal power-supplying forms.By taking the supply of front end electric supply or turning off by terminate load Long-distance Control " brand new ideas; power transmission lines is not powered at ordinary times, is in electroless state, if when terminate load needs electricity consumption; forward end control unit sends electricity consumption request instruction; after front end receiver to end command, through identifying, after correct judgment; closed current supply circuit automatically; transmission line just has electric power be sent to terminate load, if load obtains electric starting working, front end will continued power.If load does not work, in fact not electricity consumption, now, front end will cut off electric power supply after powering and only postponing certain hour automatically, and, in power supply process, transmission line interrupts (broken string), and front-end control unit can judge equally to identify and automatically cuts off power supply, makes safe power supply obtain Reliable guarantee.
The present invention neither adopts radio network technique with the pattern of terminal control front end, also do not adopt line carrier technology, remains and utilizes power line itself to transmit instruction, and be Passive Shape Control, make power-supplying forms more convenient, range of application is more extensive, reduces line loss further.Adopt this Passive Shape Control pattern, theory calculate command range can reach 200KM, in actual use, generally reaches 10KM and just meets user demand.The control model of this brand new ideas, provide safer for electric power transfer control, power-supplying forms more easily, make its range of application more extensive, market potential is huge.Adopt this control technology, the various product being applicable to many occasions, much equipment can be produced.
The present invention has following functions:
1, the function that the load teleinstruction arranged in front-end control unit receives, identify, judge, perform, and only have effect to the specific instruction of terminal, will not identify other instructions.Therefore transmission line does not have electricity at ordinary times, and be not afraid of short circuit, be not afraid of human contact, very safe.
2, the bearing power limitation function arranged in front-end control unit.When bearing power is less than set point, or when being greater than set point, control unit cuts off the supply of electric power automatically, guarantees the safety of circuit and equipment.
3, the surge arranged in front-end control unit and over-voltage protection function.When electric supply voltage exceedes set point, control unit sends instruction automatically, cuts off rapidly electric supply and exports, proterctive equipment safety.
4, the maximum power-on time arranged in front-end control unit and temperature limiting safeguard function.After being greater than set point while power is being supplied, and after temperature is greater than set point, control unit all automatically can cut off power supply and export.
5, the teleinstruction sending function arranged in Terminal Control Element, controls front end power transmission, realizes terminal control.
6, the leakage protection function arranged in Terminal Control Element.When electric shock or leaky occur in power supply process in outside line, Terminal Control Element automatic cut-off power exports, and guarantees personal safety.
7, the load arranged in Terminal Control Element gets involved automatic identification function.When load plug does not insert in socket, even if receive enabled instruction, remote power can power transmission, but itself does not start, and power supply does not still export, and only has plug to insert and specifies in socket, after pressing AN, just can complete automatic power function.
8, the temperature safeguard function arranged in Terminal Control Element, when temperature meets or exceeds set temperature, terminal unit can cut off output power automatically.
Terminal Control Element of the present invention and front-end control unit support the use, and realize controlling the remote power feeding transmission of electric supply.Also can be used alone, independent of a Multi-function safety power socket.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of front-end control unit of the present invention.
Fig. 2 is the circuit theory diagrams of Terminal Control Element of the present invention.
Embodiment
By reference to the accompanying drawings, by the mode of embodiment, the present invention is described in more detail, but the present invention do not limit to following examples as.
The present embodiment as described in multifunction power developing Of Remote Control Power method, comprise front-end control unit and Terminal Control Element, passive transmission is taked in terminate load instruction, supply or the shutoff of front end electric supply are controlled by terminate load, when terminate load does not work, power transmission lines is in electroless state, during terminate load work, Terminal Control Element forward end control unit sends electricity consumption request instruction, after front-end control unit receives the instruction of Terminal Control Element, through identifying, after correct judgment, automatically closed current supply circuit, make power transmission line has electric power be sent to terminate load, load obtains electric starting working, the supply of front end electric supply will continued power.If load is closed down, i.e. load in fact not electricity consumption, now, will cut off power supply after the supply of front end electric supply only postpones certain hour automatically.And in power supply process, once power transmission lines interrupts (broken string) accident, front-end control unit can judge equally to identify and automatically cuts off power supply, makes safe power supply obtain Reliable guarantee.
Described front-end control unit adopts double bridge balancing technique and twin voltage to compare the function that balancing technique realizes teleinstruction identification.Utilize power transmission lines and the elementary DC impedance of load terminal transformer B1 as the brachium pontis of in double bridge.At ordinary times, the transformer B1 of outside line terminal is elementary is in disjunction state, and bridge circuit is in uneven form, and PLC F will not identify.Because double bridge balance has the function automatically identifying outside line brachium pontis DC impedance, be less than or greater than resistance value when arranging balance all will not identify, so, even if short circuit outside line or human body touch outside line, or other means are all difficult to make double bridge reach equilibrium condition, twin voltage more all will not identify, only have and support the use Shi Caineng with terminal and reach poised state, PLC F just can send startup control command, make relay adhesive, relay tip switching motion, AC power exports, simultaneously, cut off double bridge identification loop, complete the function of Long-distance Control.
What described Terminal Control Element adopted is infrared electro matrix blocking type coupled identification technology, when load terminal is not got involved in photoelectrical coupler, identification circuit can not send power supply instruction, even if receive enabled instruction, remote power can power transmission, but still can not send power supply instruction owing to not having load to get involved, power supply still can not export, only have load terminal to get involved in photoelectrical coupler, start power transmission instruction, just complete automatic power function.
The device that the present invention realizes above-mentioned multifunction power developing Of Remote Control Power method comprises front-end control unit and Terminal Control Element.
As shown in Figure 1: front-end control unit forms primarily of complete machine power circuit, power limit circuit, overvoltage protection circuit, teleinstruction identification decision circuitry and control, executive circuit.
Described complete machine power circuit is primarily of transformer B1, and rectification Q1 piled by bridge, filter capacitor
C1, three terminal regulator forms.Three terminal regulator is fixing output three terminal regulator.Alternating current is after transformation, rectification, filtering, and by three terminal regulator generation+12V, the direct-current working volts of+5V, for relay and control circuit provide power supply.
Described power limit circuit is primarily of power transformer B2, bridge heap rectification Q2, filter capacitor C2, voltage-stabiliser tube Dw, adjustable resistance Rw1, isolating diode D2, D3, resistance R16, R17, R15, R14, R23, R22, the first amplifier X1, the second amplifier X2 and the first logical AND gate circuit H2B, the second logical AND gate circuit H3C form minimum power restriction and maximum power limiting circuit.First amplifier X1 is maximum power restrict circuit, and its 6 pin is connected with resistance R16, R15, provides reference voltage; Its 5 pin is connected with resistance R25 and isolating diode D3, provides comparative voltage, when comparative voltage is higher than reference voltage, and the first amplifier X1 output switching activity, PLC F sends power cutoff instruction; Second amplifier X2 is the most standby (minimum) Power Limitation limiting circuit, and its 2 pin is connected with resistance R17, R14, provides reference voltage; Its 3 pin is connected with resistance R22 and isolating diode D2, provides comparative voltage, and the second amplifier X2 output switching activity, PLC F sends continued power instruction.When actual loading electric power is less than set point and is greater than set point, this circuit sends command adapted thereto to identifying, control circuit, cuts off rapidly electric power and exports, guarantee the safety of circuit and equipment.This circuit adopts alternating electromagnetic principle of induction, through Logic judgment analysis, controls to perform instruction to PLC F, reaches the function realizing standby power restriction and maximum power restriction.
Described overvoltage protection circuit is primarily of adjustable resistance Rw2, and resistance R20, R19, voltage comparator Z1, AND gate H1A, diode D4 forms overvoltage protection circuit.2 pin of voltage comparator Z1 and resistance R20, R19 connect, and provide reference voltage, 3 pin of voltage comparator Z1 are connected with adjustable resistance Rw2, provide comparative voltage, when comparative voltage is higher than reference voltage, voltage comparator Z1 output switching activity, PLC F sends and turns off power supply instruction.This circuit is analyzed by multilevel iudge; control the 3 pin potential change of AND gate H1A; reach and perform the object that instruction is conveyed to PLC F3 pin; current potential is low level at ordinary times; when alternating voltage is increased to set point, through sampling, FPLC Programmable Logic Controller 3 pin current potential after comparative analysis, is made to be upgraded to high potential from low; PLC F, with regard to the instruction of lower cut-out relay J, realizes the function of overvoltage protection.
Described teleinstruction identification decision circuitry is primarily of two changeover contact relay J 1, J2, resistance R2, R3, R4, R5, R6, R7, first voltage comparator Y1, second voltage comparator Y2 and AND gate H4D forms, 2 pin and resistance R2, two changeover contact relay J 1, the outside line N(zero line of the first voltage comparator Y1) be connected, 3 pin of the first voltage comparator Y1 are connected with resistance R4, R5, provide reference voltage; 5 pin of the second voltage comparator Y2 are connected with resistance R6, R7, provide reference voltage, 6 pin and resistance R3, two changeover contact relay J 2, the outside line L(live wire of the second voltage comparator Y2) be connected.Wherein: the elementary DC impedance of transformer B1 of resistance R2, R3, R4, outside line N, two changeover contact relay J 1 and load terminal forms the first bridge circuit; The elementary DC impedance of transformer B1 of resistance R5, R6, R7, outside line L, two changeover contact relay J 2 and load terminal forms the second bridge circuit, forms double bridge balancing technique.First voltage comparator Y1, the second voltage comparator Y2 and AND gate H4D form twin voltage and compare balancing technique.This circuit adopts " double bridge balancing technique " and " twin voltage compares balancing technique " to realize the function of teleinstruction identification.Utilize transmission line and the elementary DC impedance of terminal B1 as the brachium pontis of in double bridge.At ordinary times, outside line terminal B1 is elementary is in disjunction state, and bridge circuit is in uneven form, and it is low level that 11 pin of H4D export, and PLC F will not identify.Because " double bridge balance " has the function of automatic identification " outside line brachium pontis " DC impedance, be less than or greater than resistance value when arranging balance all will not identify, so, even if short circuit outside line or human body touch outside line, or other means are all difficult to make double bridge reach equilibrium condition, twin voltage more all will not identify, also only have and support the use Shi Caineng with terminal B1 and reach poised state, 11 pin of H4D export as high level, PLC F just can send startup control command, make relay J adhesive, relay J contact switching motion, AC power exports, simultaneously, cut off double bridge identification loop, because power-on time and identification circuit have nothing to do, so, so far the function of Long-distance Control is completed.Described " double bridge balancing technique+twin voltage comparison techniques+outside line and end command device DC impedance technology " can adopt PLC to control, also digital circuit or electromagnetic induction circuit can be adopted, as long as reach H4D to export 11 pin potential change.That is, after load terminal sends electricity consumption application instruction, by identification, the analysis of this circuit, as instruction is correct, send command adapted thereto and carry out control circuit, send electric supply, as instruction is incorrect, control circuit will not identify, not output power power supply.
Described control, executive circuit are primarily of PLC F, and diode D6, D7, triode T, relay coil J form.PLC F is built-in with relevant data command, corresponding with various function respectively, according to the level data of sensing, at the 5th pin of PLC F after identifying and judging, 6th pin exports high level or cuts off high level, control conducting and the cut-off of triode T, and then the adhesive of control relay J or release, reach the supply of power supply or the object of shutoff.
As shown in Figure 2: whether Terminal Control Element circuit gets involved identification circuit, instruction identification executive circuit and temperature protection function circuit formation primarily of complete machine power-supply circuit, creepage protection function circuit, load terminal.
Described complete machine power-supply circuit is primarily of transformer B1, and bridge heap rectification Q1, filter capacitor C, three terminal regulator Wy form.What three terminal regulator Wy adopted is fixing output three terminal regulator, and alternating current is after transformation, rectification, filtering, and by three terminal regulator generation+12V, the direct-current working volts of+5V, for relay and control circuit provide power supply.
Described creepage protection function circuit is primarily of zero-sequence transformer B2, and bridge heap rectification Q2, filter capacitor C2, voltage-stabiliser tube Dw, triode T1, diode D5, resistance R2, R3 form.
The number of turns of L1, L2 of zero-sequence transformer B2 is equal, phase place is contrary, the input that rectification Q2 piled by L3 and the bridge of zero-sequence transformer B2 is connected, and output termination filter capacitor C2, voltage-stabiliser tube Dw, the triode T1 of bridge heap rectification Q2 connect, and the output of triode T1 is connected with resistance R2, diode D5.This circuit adopts alternating electromagnetic induction technology and alternating current phases balancing technique, and the potential change of control T1 reaches the effect cutting off J relay adhesive loop.When getting an electric shock, leaky time, this circuit generation command adapted thereto, cuts off rapidly this circuit power and exports, ensure that personal safety.Described alternating current induction technology and alternating current phases balancing technique can adopt PLC to control, also digital circuit or photoelectricity recognition technology can be adopted to control, the change of final control T1 output potential, namely high level is skipped to by low level, or fall to low level by high level, thus reach the object of block system relay adhesive.
Whether described load terminal gets involved identification circuit primarily of photoelectrical coupler H1, H2, diode D2, D3, and resistance R4, R5, R6, R7, R8 form.Photoelectrical coupler H1, H2 be adopt be the patented technology that the present inventor has applied for.What circuit adopted is the change that " infrared electro matrix blocking type coupled identification technology " controls diode D2, D3 output potential, reaches the effect of control T2 triode operation state.When in matrix Infra red photo electric device, load plug does not insert, the output of D2, D3 is all low levels, and when load plug inserts, the output of D2, D3 skips to high level by low level, for T2 triode ON proposes instruction, finally realize load and get involved the function automatically identified.Described " matrix infrared electro stops coupled identification technology " also can PLC circuit, or digital circuit or permanent-magnetic field technology, as long as make the input of AND circuit Y
'spotential change, the adhesive of control relay.That is, if do not have load terminal to get involved in photoelectrical coupler, this identification circuit can not send power supply instruction, even if meet instruction AN to apply for electricity consumption, but still can not send power supply instruction owing to not having load to get involved, play dual fail-safe effect.
Described instruction identification executive circuit is primarily of AND circuit Y, triode T2, relay J forms, AND circuit Y is instruction recognition means, only have when 1 pin of AND circuit Y and 2 pin are all high level, triode T2 could conducting, and relay J just understands adhesive, when 1 pin of AND circuit Y and 2 pin have one to be low level, discharge immediately when triode not adhesive or adhesive.
Described temperature protection function circuit connects a temperature controller WK at B1 primary coil; when the temperature of load itself exceedes design temperature; WK inside is in off state; transformer B1 can not get AC power; complete machine direct-current working volts also disappear thereupon; relay J must discharge, thus cuts off the output of AC power, reaches the object of temperature protection.
Operation principle and the process of the present embodiment are as follows:
Front-end control unit: connect AC power, transformer B1 obtains electric, and through step-down Q1 rectification, C1 filtering, obtains+12V direct voltage, this voltage through Rw2 to overvoltage comparison circuit and J relay coil.Again after three-terminal voltage-stabilizing Wy voltage stabilizing, obtain+5V direct voltage, for whole control circuit provides reliable galvanic current source.According to the requirement of PLC F program, it exports 5,6 pin is all low levels, and triode T is in cut-off state, and relay J can not adhesive, and electric supply can not export.Now, by two changeover contact relay J 1, J2, resistance R2, R4, R6, R5, R7, R3, comparator Y1, Y2 AND gate composition teleinstruction identification decision circuitry does not have action.Because this circuit adopts the enabled instruction of " double bridge balance+twin voltage compares balance " technology to load terminal to judge, analyze and identify, after meeting its operation condition, just can send command adapted thereto.Resistance R2, R4, R5 and the first comparator Y1 form the first electric bridge and the first voltage comparator circuit, it is minimum outer line impedence identification circuit, and resistance R6, R7, R3 and the second comparator Y2 form the second electric bridge and the second voltage comparator circuit, it is maximum outer line impedence identification circuit.Two-way electric bridge, two voltage comparator circuits, all lack a main brachium pontis and be in non-equilibrium state, and the elementary direct current that the brachium pontis lacked is exactly transformer B1 in outside line total impedance and Terminal Control Element directly resists.Set two electric bridges, DC impedance value that two voltage comparators are total when reaching balance, and terminal and the total DC impedance value of outside line are exactly in this scope, just can reach balance, namely identify correct judgment, will send corresponding instruction.Now, because terminal does not press the button AN, two electric bridges lack brachium pontis, and two voltage compare are uneven, the 1 pin output low level of Y1, and 7 pin of Y2 export high level.And the output of AND gate H4D is low level, it is also low level that 1 pin of PLC F, 5 pin export, and triode T ends, and relay J is failure to actuate, and its contact breaks, and electric supply is not powered.
When outside line L, N are short-circuited, 6 pin of 2 pin and Y2 that its equivalent electric circuit is equivalent to Y1 are connected, and two electric bridges are still uneven, 1 pin of Y1 remains low level, and 7 pin of Y2 remain high level, the same with the above results, relay J can not adhesive, ensure that safety during outside line short circuit.
When human body touches outside line L, N, due to human body impedance general comparatively large (about > 30K about Ω), its etc. 6 pin of electric discharge road 2 pin and Y2 that are equivalent to Y1 be connected in series the resistance of a > 30K Ω, result of calculation two electric bridge and two voltage comparators still uneven, 1 pin of Y1 exports as high level, and 7 pin of Y2 export as low level.Although Y1, Y2 change, export still uneven, relay J still can not action.Only have and work as Y1, when two outputs of Y2 are all high level, PLC F just can identify the instruction that just can send relay adhesive, when also only having the B1 primary coil DC impedance+outside line DC impedance=setting impedance identification in terminating circuit, two electric bridge two comparators just can reach balance, really realize high security.Do not have end command, it is more difficult for starting front end by other method, especially is more difficult to reach its equilibrium condition in actual production practice.
So when terminal button AN presses, in load terminal control unit, the primary coil of B1 is attempted by transmission line.DC impedance due to B1 primary coil is at double bridge, in the scope of twin voltage comparator setting, Y1 can be met simultaneously, Y2 twin voltage compares, the condition of double bridge balance, 12 pin of H4D, 13 pin are high level simultaneously, it exports 11 pin is also high level, after the identification of PLC F 1 pin, exports the high level (delay time can set as required) of a time delay at F the 5th pin.Triode T conducting, relay J coil has instruction, adhesive, its contact J1, J2 switching motion, alternating current loop, structure road, and electric supply starts power supply by contact on transmission line.Meanwhile, double bridge is cut off, two loop of comparing.If in F5 pin time delay high level process.Terminate load never actual electricity consumption, after time delay, first F5 pin high level returns to low level.Relay J discharges, and its contact disconnects, and cut off alternating current output loop, this function is exactly one of automatic identification of load operating condition.
In PLC F delay stage, if work electricity consumption is determined in load, its alternating current is inevitable produces certain induced current at B2 secondary transformer, certain direct voltage is produced after rectifying and wave-filtering voltage stabilizing, this voltage and load, how many electricity consumptions is directly proportional change, regulates Rw1 can reach the actual demand of user.When the voltage that D2 exports is greater than X2 comparator 2 pin, 1 pin of X2 is high level from low transition, and H2B shaping is to 7 pin of PLC F.After PLC F connects this instruction, its 6th pin exports high level.Make triode T conducting, relay J adhesive, load continuous obtains electric work, even if 5 pin time delays are to becoming low level, but 6 pin are still high level, and T is conducting still, and J relay can continue adhesive, this function be load operating condition automatically identify two.
After load quits work, X2 exports and becomes low level again, but PLC F program requires that its 6 pin just must become low level after the time delay high level regular hour after load quits work.So after load does not work, the AC power of transmission line just must can cut off the output of electric power after the certain setting-up time of time delay.This function is exactly minimum power limitation function, is also standby power.
In normal power supply process; if load current is excessive; and after exceeding set point; the output voltage of diode D3 must exceed reference voltage 6 pin, and 7 pin of its X1 are jumped as high level, through 3 pin of D5 to PLC F from low level; program command PLC F the 5th or the 6th pin is necessary for low level; force T cutoff relay J release, cut off the output exchanged, this function is exactly maximum power restriction safeguard function overcurrent protection function.
In addition, if when AC supply voltage exceedes setting, the voltage of adjustable resistance Rw2 must exceed 2 pin voltages of Z1 comparator, 1 pin of its Z1 exports that to skip to high level from low level the same with above-mentioned through the 3rd pin of D4F, PLC sends instruction, force the 5th or 6 pin to export as low level, T ends the release of J relay, cuts off to exchange to export.This function is exactly over-voltage protection function.
In whole circuit, temperaturecontrol sensor Wk is when normal temperature, and it is inner in closure state, and alternating current L, by WK transformer B1 one end, makes the positive often-have-electricity of transformer B1 and works.When temperature exceedes itself rated temperature, inside is immediately in off-state, and B1 transformer can not get work exchange electricity, and the working power of whole circuit disappears thereupon, and relay J can not adhesive, or release, realizes over-temperature protection object.
Terminal control power supply: when not pressing AN, whole control unit does not have working power, relay J not adhesive, and complete machine does not consume any electric energy.When pressing AN, transformer B1 one end connects with outside line L live wire, if when front end distribution uses, in its B1 primary consumer access front end recognition circuit, judges backward outside line supply AC power by analysis.B1 obtains electric, through Q1 rectification C1 filtering, and Wy voltage stabilizing, successively obtain+12V and+5V direct-current working volts, be relay J, control circuit provides working power, by photoelectrical coupler H1, H2, resistance R4, R5, R6, R7, the load composition identification circuit of diode D2, D3 composition is started working, when H1, H2 do not have appliance plug to insert, its D2, D3 are low levels, triode T2 ends, and relay J not adhesive, socket port is output AC power source not.Because load is not inserted in socket, do not have load current to produce, through regular hour time delay, the instruction in front-end control unit turns off alternating current and exports, and whole transmission line and terminal unit return to electroless state.When load plug inserts photoelectrical coupler H1 or H2, its D2, D3 exports and jumps as high level from low level, due to D5 be also now high level time, Y output 3 pin is high level, the adhesive of T2 conducting J relay, its junction closure, output AC power source.Load obtains electric continuous firing.Realize load operating condition identifying purpose.During loaded work piece, the phenomenon if generation electric leakage or people get an electric shock, the output L3 of B2 produces induced current, and through Q2 rectifying and wave-filtering, voltage stabilizing makes T1 become conducting from cut-off.D5 current potential falls to low level from high level.The pin of Y jumps as low level from high level, and triode T2 is that cut-off J relay discharges by conducting, and the output that its contact cuts off alternating current realizes creepage protection function.
Time within the scope of design temperature, divert maintenance effect when starting, in close access state, is worked on the one hand in Miniature temperature protection switch WK inside, is temperature protection on the one hand.When temperature exceedes design temperature, WK inside is in off state, and transformer B1 can not get AC power, and complete machine direct-current working volts also disappear thereupon, and relay J must discharge, thus cuts off the output of AC power, reaches the object of temperature protection.
This Terminal Control Element can support the use with front-end control unit, has the function sending remote activation instruction.Also can use as supply socket separately, but only have the function in this control unit.
Claims (10)
1. a multifunction power developing Of Remote Control Power method, it is characterized in that: comprise front-end control unit and Terminal Control Element, passive transmission is taked in terminate load instruction, supply or the shutoff of front end electric supply are controlled by terminate load, when terminate load does not work, power transmission lines is in electroless state, during terminate load work, Terminal Control Element forward end control unit sends electricity consumption request instruction, after front-end control unit receives the instruction of Terminal Control Element, through identifying, after correct judgment, automatically closed current supply circuit, make power transmission line has electric power be sent to terminate load, load obtains electric starting working, the supply of front end electric supply will continued power.
2. multifunction power developing Of Remote Control Power method according to claim 1, it is characterized in that: described front-end control unit adopts double bridge balancing technique and twin voltage to compare balancing technique and realizes teleinstruction identification, utilize the DC impedance of power transmission lines and load terminal primary as the brachium pontis of in double bridge, at ordinary times, the primary of outside line terminal is in disjunction state, bridge circuit is in uneven form, PLC will not identify, the primary DC impedance of terminal and double bridge is only had to match, just poised state can be reached, PLC just can send startup control command, make relay adhesive, relay tip switching motion, AC power exports, simultaneously, cut off double bridge identification loop, complete the function of Long-distance Control.
3. multifunction power developing Of Remote Control Power method according to claim 1, it is characterized in that: what described Terminal Control Element adopted is infrared electro matrix blocking type coupled identification technology, when load terminal is not got involved in photoelectrical coupler, identification circuit can not send power supply instruction, even if receive enabled instruction, remote power can power transmission, but get involved owing to there is no load and still can not send power supply instruction, power supply still can not export, load terminal is only had to get involved in photoelectrical coupler, start power transmission instruction, just complete automatic power function.
4. one kind realizes the device of multifunction power developing Of Remote Control Power method described in claim 1, it is characterized in that: comprise front-end control unit and Terminal Control Element, described front-end control unit is primarily of complete machine power circuit, power limit circuit, teleinstruction identification decision circuitry and control, executive circuit forms, described complete machine power circuit provides+12V for relay and control circuit, the direct-current working volts power supply of+5V, described power limit circuit realizes standby power restriction and maximum power restriction, described teleinstruction identification decision circuitry is by double bridge balance and twin voltage balance, utilize transmission line and the elementary DC impedance of terminal transformer as the brachium pontis of in double bridge, realize remote passive instruction identification, described control, executive circuit passes through adhesive or the release of control relay, perform the supply to power supply or shutoff, whether described Terminal Control Element circuit gets involved identification circuit, instruction identification executive circuit formation primarily of complete machine power-supply circuit, load terminal, described complete machine power-supply circuit provides+12V for relay and control circuit, the direct-current working volts of+5V, whether described load terminal gets involved identification circuit adopts infrared electro matrix blocking type coupled identification technology to realize the function that load gets involved identification automatically, the adhesive of control relay, described instruction identification executive circuit passes through adhesive or the release of control relay J, performs the supply to power supply or shutoff.
5. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: the power limit circuit of described front-end control unit is primarily of power transformer (B2), bridge heap rectification (Q2), filter capacitor (C2), voltage-stabiliser tube (Dw), adjustable resistance (Rw1), isolating diode (D2, D3), resistance (R16, R17, R15, R14, R23, R22), first amplifier (X1), second amplifier (X2) and the first logical AND gate circuit (H2B), second logical AND gate circuit (H3C) forms minimum power restriction and maximum power limiting circuit, 6 pin of the first amplifier (X1) and resistance (R16, R15) connect, reference voltage is provided, its 5 pin is connected with resistance (R25) and isolating diode (D3), comparative voltage is provided, when comparative voltage is higher than reference voltage, first amplifier (X1) output switching activity, PLC (F) sends power cutoff instruction, 2 pin of the second amplifier (X2) are connected with resistance (R17, R14), reference voltage is provided, its 3 pin is connected with resistance (R22) and isolating diode (D2), comparative voltage is provided, second amplifier (X2) output switching activity, PLC (F) sends continued power instruction.
6. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: the overvoltage protection circuit of described front-end control unit is primarily of adjustable resistance (Rw2), resistance (R20, R19), voltage comparator (Z1), AND gate (H1A), diode (D4) forms, 2 pin of voltage comparator (Z1) and resistance (R20, R19) connect, reference voltage is provided, 3 pin of voltage comparator (Z1) are connected with adjustable resistance (Rw2), comparative voltage is provided, when comparative voltage is higher than reference voltage, voltage comparator (Z1) output switching activity, PLC (F) sends and turns off power supply instruction.
7. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: the teleinstruction identification decision circuitry of described front-end control unit is primarily of two changeover contact relay (J1, J2), resistance (R2, R3, R4, R5, R6, R7), first voltage comparator (Y1), second voltage comparator (Y2) and AND gate (H4D) composition, 2 pin of the first voltage comparator (Y1) and resistance (R2), two changeover contact relay (J1), outside line (N) connects, 3 pin of the first voltage comparator (Y1) and resistance (R4, R5) connect, reference voltage is provided, 5 pin of the second voltage comparator (Y2) are connected with resistance (R6, R7), reference voltage is provided, 6 pin of the second voltage comparator (Y2) are connected with resistance (R3), two changeover contact relay (J2), outside line (L), wherein: transformer (B1) the elementary DC impedance of resistance (R2, R3, R4), outside line (N), two changeover contact relay (J1) and load terminal forms the first bridge circuit, transformer (B1) the elementary DC impedance of resistance (R5, R6, R7), outside line (L), two changeover contact relay (J2) and load terminal forms the second bridge circuit, form double bridge balancing technique, the first voltage comparator (Y1), the second voltage comparator (Y2) and AND gate (H4D) form twin voltage and compare balancing technique.
8. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: the creepage protection function circuit of described Terminal Control Element is primarily of zero-sequence transformer (B2), bridge heap rectification (Q2), filter capacitor (C2), voltage-stabiliser tube (Dw), triode (T1), diode (D5), resistance (R2, R3) form, the L1 of zero-sequence transformer (B2), the number of turns of L2 is equal, phase place is contrary, the input that rectification (Q2) piled by L3 and the bridge of zero-sequence transformer (B2) is connected, the output termination filter capacitor (C2) of bridge heap rectification (Q2), voltage-stabiliser tube (Dw), triode (T1) connects, the output of triode (T1) and resistance (R2), diode (D5) connects.
9. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: whether the load terminal of described Terminal Control Element gets involved identification circuit primarily of photoelectrical coupler (H1, H2), diode (D2, D3), resistance (R4, R5, R6, R7, R8) forms, what photoelectrical coupler (H1, H2) adopted is infrared electro matrix blocking type coupled identification technology, control the change of diode (D2, D3) output potential, reach the operating state controlling triode (T2).
10. the device of multifunction power developing Of Remote Control Power method according to claim 4, it is characterized in that: the instruction identification executive circuit of described Terminal Control Element is primarily of AND circuit (Y), triode (T2), relay (J) forms, AND circuit (Y) is instruction recognition means, only have when 1 pin of AND circuit (Y) and 2 pin are all high level, the conducting of triode (T2) ability, relay (J) just meeting adhesive, when 1 pin of AND circuit (Y) and 2 pin have one to be low level, discharge immediately when triode not adhesive or adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264322.7A CN104852465A (en) | 2014-06-16 | 2014-06-16 | Multifunctional electric power supply remote control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264322.7A CN104852465A (en) | 2014-06-16 | 2014-06-16 | Multifunctional electric power supply remote control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104852465A true CN104852465A (en) | 2015-08-19 |
Family
ID=53851901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264322.7A Pending CN104852465A (en) | 2014-06-16 | 2014-06-16 | Multifunctional electric power supply remote control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104852465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546753A (en) * | 2018-12-19 | 2019-03-29 | 郭胜利 | A kind of remote passive control device and method based on power transmission and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574653A (en) * | 1990-06-25 | 1996-11-12 | The South East Queensland Electricity Board | Switchboard |
| CN2560148Y (en) * | 2002-03-22 | 2003-07-09 | 李世学 | Electric intelligent protecting & long controlling system |
| CN101038821A (en) * | 2007-04-29 | 2007-09-19 | 郭胜利 | Multifunction safety knife switch |
| CN101976884A (en) * | 2010-10-21 | 2011-02-16 | 北京清畅电力技术股份有限公司 | Self-powdered protection device for power transmission and distribution lines |
| CN102664460A (en) * | 2012-05-02 | 2012-09-12 | 郭胜利 | Load remote automatic control power supply device |
-
2014
- 2014-06-16 CN CN201410264322.7A patent/CN104852465A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574653A (en) * | 1990-06-25 | 1996-11-12 | The South East Queensland Electricity Board | Switchboard |
| CN2560148Y (en) * | 2002-03-22 | 2003-07-09 | 李世学 | Electric intelligent protecting & long controlling system |
| CN101038821A (en) * | 2007-04-29 | 2007-09-19 | 郭胜利 | Multifunction safety knife switch |
| CN101976884A (en) * | 2010-10-21 | 2011-02-16 | 北京清畅电力技术股份有限公司 | Self-powdered protection device for power transmission and distribution lines |
| CN102664460A (en) * | 2012-05-02 | 2012-09-12 | 郭胜利 | Load remote automatic control power supply device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546753A (en) * | 2018-12-19 | 2019-03-29 | 郭胜利 | A kind of remote passive control device and method based on power transmission and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203466383U (en) | Intelligent static safe energy-saving multifunctional socket with zero power consumption | |
| CN204649834U (en) | A kind of integral and intelligent electric energy meter with leakage current monitoring and protecting function | |
| CN103488159A (en) | Distribution box type smart home terminal and comprehensive protection controller | |
| CN106549468A (en) | A kind of mobile terminal charging data line and charger | |
| CN203423331U (en) | Multifunctional intelligent safety power supply socket without standby loss | |
| CN202904280U (en) | Control circuit approaching to zero standby power consumption | |
| CN107221988A (en) | The power circuit and its control method of a kind of under-voltage protection | |
| CN202550225U (en) | Infrared remote control energy-saving power wiring board | |
| CN204758746U (en) | Do benefit to and judge that electricity adds circuit of electrothermal relay adhesion | |
| CN204179746U (en) | Multifunction power power source long-range controller | |
| CN203883257U (en) | Remote control smart power strip by use of mobile phone | |
| CN205752823U (en) | A kind of Intelligent extension socket | |
| CN205231713U (en) | Novel low -tension motor protection and electric -dazzling prevention device | |
| CN208522184U (en) | A kind of common nun | |
| CN102799257A (en) | Power supply protection circuit | |
| CN104852465A (en) | Multifunctional electric power supply remote control method and device | |
| CN103595034A (en) | Closed-loop surge elimination circuit | |
| CN103825317A (en) | Energy-saving charger | |
| CN103178413A (en) | Multifunctional intelligent safety power socket without standby power loss | |
| CN104917287A (en) | PDU power control system | |
| CN103219716B (en) | The guard method of transformer station's power-supply system feeder line short circuit and overload and protective device thereof | |
| CN205485487U (en) | Intelligence switch based on wiFi control | |
| CN204481784U (en) | Low-power consumption single-fire-wire electronic switch | |
| CN104730971A (en) | Micro-power consumption standby system and device | |
| CN205051569U (en) | Rectification filter circuit and electrical apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |