CN103743937B - A kind of method utilizing high voltage display device to carry out HV live displaying - Google Patents
A kind of method utilizing high voltage display device to carry out HV live displaying Download PDFInfo
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- CN103743937B CN103743937B CN201410040863.1A CN201410040863A CN103743937B CN 103743937 B CN103743937 B CN 103743937B CN 201410040863 A CN201410040863 A CN 201410040863A CN 103743937 B CN103743937 B CN 103743937B
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Abstract
The invention discloses a kind of high voltage display device and its implementation, mainly solving high voltage display device present in prior art uses battery or external power source to power mostly, battery altering is the most inconvenient, and be easily subject to high voltage electric equipment heating impact and cause failure of apparatus, the problem that safety is the highest.This high voltage display device, including detection transmitting terminal and reception display end, described detection transmitting terminal and receive that display end high and low pressure side is completely isolated, communicated by less radio-frequency, described detection transmitting terminal includes providing the induction energy fetching device based on field coupling of work energy for it.By such scheme, invention achieves safe and reliable, the purpose of scope of application light, there is the highest practical value and promotional value.
Description
Technical field
The present invention relates to a kind of safety device, specifically, relate to a kind of one and utilize HV live displaying
Device carries out the method for HV live displaying.
Background technology
In recent years, high voltage display device is widely used in power system, is used for preventing electric misoperation.
Traditional high voltage display device mostly uses wired detection mode, needs to have a power failure and installs and to original line
Road is modified, and there is various potential safety hazard, the most gradually substituted by new device in running.
Current new device uses communication mostly, and coordinates the various electronic components such as single-chip microcomputer
Using, it is achieved the live detection to high voltage electric equipment, in this type of scheme, detection Sensor section is most
Battery or external power source is used to power, but, battery altering is the most inconvenient, is easily subject to high-voltage electrical apparatus and sets
Preparation heat affecting and cause failure of apparatus, severe patient will cause accident to occur, in order to improve detection safety, people
In the urgent need to the higher and safe and reliable high voltage display device of a kind of cost performance.
Summary of the invention
It is an object of the invention to provide a kind of high voltage display device and its implementation, mainly solve existing
Having high voltage display device present in technology mostly to use battery or external power source to power, battery altering is relatively
For inconvenience, and it is easily subject to high voltage electric equipment heating impact and causes failure of apparatus, the highest the asking of safety
Topic.
To achieve these goals, the technical solution used in the present invention is as follows:
High voltage display device, including detection transmitting terminal and reception display end, described detection transmitting terminal is installed
In the high-pressure side of high voltage electric equipment, receiving display end and be installed on the low-pressure side of high voltage electric equipment, detection is sent out
Penetrate end and receive that display end high and low pressure side is completely isolated, communicated by less radio-frequency, described detection transmitting
End includes the induction energy fetching device based on field coupling for its offer work energy.
Specifically, described detection transmitting terminal includes the power supply voltage stabilizing electricity that input is connected with induction energy fetching device
Sound table resonator that road, input are all connected with power supply stabilization circuit and charged display lamp, input and sound table
Rf signal amplification circuit that resonator is connected, the transmitting antenna that is connected with rf signal amplification circuit of input.
Further, described reception display end includes the reception sky that the signal sending transmitting antenna is received
Line, the rf signal amplification circuit that input is connected with reception antenna, input and rf signal amplification circuit
The rf signal reception circuit being connected, the processor that input is connected with rf signal reception circuit, input
The charged display lamp being connected with processor.
In view of actual demand, described processor connects electroscopy equipment interface, RS485 interface and relay
Normally opened interface.
Further, described induction energy fetching device based on field coupling includes the coupling energy taking being sequentially connected
Unit, anti-overvoltage crowbar, rectification circuit and accumulator, the triggering circuit being connected with accumulator,
And with trigger the controllable silicon that circuit and accumulator are all connected, described power supply stabilization circuit and accumulator phase
Even.
Wherein, described coupling energy taking unit includes top crown and the bottom crown being parallel to each other.
In the present invention, described detection transmitting terminal is three, is separately mounted to A, B, C of high voltage electric equipment
On three-phase, the charged display lamp being connected with power supply stabilization circuit is single-phase charged display lamp；It is connected with processor
Charged display lamp be the charged display lamp of three-phase.
Based on said apparatus, the invention discloses the implementation method of a kind of high voltage display device, including with
Lower step:
(1) different for signal tranmitting frequency three detection transmitting terminals are separately mounted to high voltage electric equipment A,
On B, C three-phase；
(2) when high voltage electric equipment is charged, alternating electric field exists, the induction energy fetching device of detection transmitting terminal
Obtaining energy from alternating electric field, charged display lamp continuously sends out flash signal, and sound table resonator produces simultaneously
Oscillator signal, rf signal amplification circuit is transferred to launch antenna after being amplified by this oscillator signal carries out sending out
Send, when receiving display end and receiving the radiofrequency signal launching antenna transmitting, will by rf signal amplification circuit
The radiofrequency signal received is amplified, rf signal reception circuit be received the signal after amplifying,
And obtained the band telecommunications of each phase of high voltage electric equipment by frequency sweep nuclear phase processing procedure by rf signal reception circuit
Breath, is then transferred to band electrical information in processor by rf signal reception circuit, processor controls three-phase
Charged display lamp demonstrates each facies tract electrical information, and exports block signal；When high voltage electric equipment is not charged,
Alternating electric field disappears, and detection transmitting terminal stops sending signal；
In described step (1), induction energy fetching device based on field coupling by following steps carry out taking can:
(1a) top crown of coupling energy taking unit is connected on high-voltage charged body；
(1b) alternating current top crown and the bottom crown of coupling energy taking unit formed under electric field action connects
To anti-overvoltage crowbar, afterwards alternating current is connected to rectification circuit；
(1c) AC rectification is unidirectional current output by rectification circuit, and charges accumulator；
(1d) being connected with controllable silicon and triggering circuit by accumulator, regulation controllable silicon and triggering circuit control
Accumulator is charged or discharges, and the electric energy after electric discharge is connected to power supply stabilization circuit.
Compared with prior art, the method have the advantages that
(1) present invention uses communication, and high and low pressure side is completely isolated, by the sensing of field coupling
Way to take power is powered, it is not necessary to battery or external power source, its work not by high voltage electric equipment running voltage,
Current range limits, and not by equipment self-heating and strong electromagnetic environmental effect, implements more convenient, overall peace
Full property is higher.
(2), in the present invention, radiofrequency signal without doing the modulation such as ASK, FSK, is directly passed through after amplifying
Radio-frequency antenna launches unloaded ripple, and without using any modulation circuit, processor, capacitance type sensor, because of
And power consumption can be substantially reduced, substantially ensure that the reliability of live detection and display.
(3) in the present invention, the signal tranmitting frequency of detection transmitting terminal is different, and reception display end has to be swept
Frequently nuclear phase function, can determine whether and indicate each phase electriferous state of high voltage electric equipment, and staff is by charged
Display lamp just can be appreciated that the electriferous state of each phase, designs very hommization.
(4), in the present invention, receive display end and possess electroscopy equipment interface, relay normally open interface and RS485
Interface, extensibility is higher, can meet the forced blocking demand to various high voltage electric equipments comprehensively.
(5) in the present invention, use the mode of field coupling carry out taking can, the coupling energy taking unit in device with
High-voltage charged body isoelectric level works, thus safety and reliability is the highest, and overall structure is relatively simple,
Used device blocks is less, thus implement more convenient, cost performance is higher, the scope of application is relatively wide, is suitable for
Large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is the system block diagram detecting transmitting terminal in the present invention.
Fig. 2 is the system block diagram receiving display end in the present invention.
Fig. 3 is the system block diagram of induction energy fetching device based on field coupling in the present invention.
Fig. 4 is the circuit theory diagrams of induction energy fetching device based on field coupling in the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings, embodiments of the present invention include but
It is not limited to the following example.
Embodiment
Battery or external power source is mostly used to supply in order to solve high voltage display device present in prior art
Electricity, battery altering is the most inconvenient, and is easily subject to high voltage electric equipment heating impact and causes failure of apparatus,
The problem that safety is the highest, as shown in figures 1-4, the invention discloses a kind of without using battery or any
The high voltage display device of external power source, it mainly includes detecting transmitting terminal and receiving display end, detects and send out
Penetrating end usual is one group with three, is directly installed on high voltage electric equipment on high-tension side A, B, C three-phase；
Receive display end and be installed on the low-pressure side of high voltage electric equipment, pass through between detection transmitting terminal and reception display end
Radio-Frequency Wireless Communication, high and low pressure side is completely isolated；Detection transmitting terminal is by induction energy fetching based on field coupling
The alternating electric field that device directly exists around high voltage electric equipment obtains energy.
As it is shown in figure 1, detection transmitting terminal includes that outfan is sequentially connected that (i.e. the former outfan and the latter's is defeated
Enter end be connected) induction energy fetching device, power supply stabilization circuit, sound table resonator, rf signal amplification circuit and
Launch antenna, and the charged display lamp that input is connected with power supply stabilization circuit.
As in figure 2 it is shown, receive display end to include that outfan is sequentially connected that (i.e. the former outfan and the latter's is defeated
Enter end be connected) reception antenna, rf signal amplification circuit, rf signal reception circuit, processor and three-phase
Charged display lamp.
As it is shown on figure 3, induction energy fetching device based on field coupling mainly includes coupling energy taking unit, anti-mistake
Voltage protection circuit, rectification circuit, accumulator, triggering circuit and controllable silicon, wherein, coupling energy taking unit
Being made up of with bottom crown the top crown being placed in parallel, top crown can be connected on high-voltage charged body and electrification in high voltage
Body isoelectric level works, and its work is not limited by high-voltage charged body running voltage and current range, current/voltage
Height only affects the time of discharge and recharge, and bottom crown forms alternating current under the effect of electric field, afterwards by formation
Alternating current is connected to anti-overvoltage crowbar；
Anti-overvoltage crowbar carries out anti-overvoltage protection to circuit, it is ensured that will not during high-voltage charged body overtension
Damage device, then the alternating current of formation is connected to rectification circuit；
The alternating current that rectification circuit is received is changed into unidirectional current, and charges described accumulator；
Accumulator is connected with controllable silicon and triggering circuit, and under the regulation of controllable silicon and described triggering circuit
Charge and discharge, operationally, accumulator preferably is set to go here and there the mode of operation filled and put, with
Improve energy and collect efficiency, between pressure and energy storage capacity, reach balance, and at controllable silicon with trigger circuit
Control under realize under threshold voltage device electric discharge and turn-off function, this accumulator can use multiple electric capacity
The mode of combination, such compound mode becomes apparent from than the energy storage effect only with single electric capacity.
Induction energy fetching device does not include load, and the load in the present embodiment refers to detect in transmitting terminal except sense
Answer the circuit part beyond energy taking device.
As shown in Figure 4, present embodiments provide a kind of in order to implement induction energy fetching device based on field coupling
Circuit theory diagrams:
Region 1 is coupling energy taking unit, is made up of, by field coupling top crown P1 and bottom crown P2
Mode takes energy, and when top crown P1 and bottom crown P2 is placed in alternating electric field, its two ends induce electric current electricity
Pressure, and electric field energy is converted to electric energy；
Region 2 is anti-overvoltage crowbar, and it is TVS pipe, when the high-energy of moment is stood at TVS pipe two ends
During impact, it can make its impedance suddenly reduce with high speed, simultaneously absorb a big electric current, by its two
Voltage clamp between end one predetermined numerically, so that it is guaranteed that component below is from transient state high energy
Amount impact and damage；
Region 3 is rectification circuit, and the electric current passed through is carried out rectification, is unidirectional current by AC conversion；
Region 4 is accumulator, uses the mode that string fills and puts, it may be assumed that during charging, rectification circuit is to electric capacity
C1 charges, and is charged to electric capacity C2 by diode D2 simultaneously；During electric discharge, the electric current of electric capacity C1 is by negative
Carrying and constitute loop with diode D1, the electric current of electric capacity C2 is constituted back after load through diode D3 simultaneously
Road, the effect of diode D2 is one-way conduction, i.e. conducting during charging, and electric current is electric capacity after passing through electric capacity C1
C2 charges, and during electric discharge, diode D2 plays the effect of blocking-up, and the electric current making electric capacity C2 discharge passes through
Load.Use the mode that this string fills and puts, the efficiency that energy is collected can be effectively improved.The present invention uses
Two capacitor loops C1, C2 carry out discharge and recharge, electricity can be increased or decreased according to loading demand situation when application
Hold loop；
Region 5 is for triggering circuit, and user presets trigger value, as the diac DS triggered in circuit
When both end voltage reaches trigger value, diac turns on, and both end voltage drastically declines, and electric current increases, and wink
Between increase current value reach silicon controlled trigger current value, make controlled silicon conducting, circuit start electric discharge；
Region 6 is controllable silicon, after trigger circuit triggers controllable silicon, controlled silicon conducting, accumulator start for
Load provides electric energy, and when maintaining electric current by silicon controlled current value less than it, controllable silicon turns off, circuit
Stop as load supplying.
Based on above-mentioned device circuitry, the operation principle of induction energy fetching device based on field coupling is as follows:
The top crown of coupling energy taking unit is placed in parallel with bottom crown, carries out taking energy by the way of field coupling,
The top crown of coupling energy taking unit is connected on high-voltage charged body, with the bottom crown of coupling energy taking unit at electric field
Form alternating current under effect, the alternating current of formation is connected to anti-overvoltage crowbar, circuit is carried out anti-mistake
Pressure protection, then the alternating current of formation is carried out rectification by rectification circuit, it is unidirectional current by its rectification, and right
Accumulator charges, and accumulator is connected with controllable silicon and triggering circuit, and at controllable silicon and triggering circuit
Charging and discharging under regulation, the electric energy after electric discharge is available for load and uses.
The work process of the present invention is as follows:
Detection transmitting terminal is three, is separately mounted on A, B, C three-phase of high voltage electric equipment, is installed on
The signal tranmitting frequency of the detection transmitting terminal on A, B, C three-phase is different, when high voltage electric equipment is charged
Time, alternating electric field exists, and induction energy fetching device based on field coupling is directly deposited around high voltage electric equipment
Alternating electric field in obtain energy, after power supply stabilization circuit carries out voltage stabilizing give charged display lamp harmony
Table resonator is powered, and the most charged display lamp continuously sends out flash signal, and sound table resonator produces vibration simultaneously
Signal, signal, after rf signal amplification circuit is amplified, is directly launched by transmitting antenna；
When high voltage electric equipment is not charged, alternating electric field disappears, and detection transmitting terminal stops sending charged signal, logical
Cross this signal to send, stop keeping with equipment live, not charged state Tong Bu mode just can realize in real time
Live detection；
When receiving display end and receiving radiofrequency signal, i.e. represent in high voltage electric equipment three-phase an at least phase
Charged, now by rf signal amplification circuit, radiofrequency signal is amplified, by rf signal reception circuit
It is received, simultaneously through frequency sweep nuclear phase process to obtain each phase electriferous state of high voltage electric equipment, then
Controlled the charged display lamp of three-phase by processor and demonstrate each facies tract electrical information, and export block signal, high-tension electricity
In the three-phase of gas equipment any one mutually charged time, the charged display lamp of three-phase all can accurately indicate this charged phase, this
Time processor keep output block signal, only during three-phase simultaneously decompression, receive display end and no longer receive and penetrates
Frequently signal, now three-phase charged display lamp display high voltage electric equipment entirety allows to solve without electricity, processor output
Lock signal, thus, staff directly can be observed by the charged display lamp of three-phase and judge high voltage electric equipment
Charged situation, realize real-time charged display and locking in this way.
As required, block signal is output to anti-misoperation locking device, meets all kinds of Mechanically programm and locks, electrically
Locking, the requirement of computer anti-misoperation and lockout, it is achieved with various types of error-proof device seamless access.
According to above-described embodiment, the present invention just can be realized well.
Claims (2)
1. utilize the method that high voltage display device carries out HV live displaying, wherein, electrification in high voltage
Display device, including detection transmitting terminal and reception display end, described detection transmitting terminal is installed on high-voltage electrical apparatus and sets
Standby high-pressure side, receives display end and is installed on the low-pressure side of high voltage electric equipment, and detection transmitting terminal shows with receiving
Showing end, high and low pressure side is completely isolated, communicated by less radio-frequency, and described detection transmitting terminal includes carrying for it
Induction energy fetching device based on field coupling for work energy；Described detection transmitting terminal includes input and sense
Answer power supply stabilization circuit, the sound table resonator that is all connected of input that energy taking device is connected with power supply stabilization circuit
Rf signal amplification circuit, input and the radio frequency being connected with sound table resonator with charged display lamp, input
The transmitting antenna that signal amplification circuit is connected；Described induction energy fetching device based on field coupling includes phase successively
Coupling energy taking unit, anti-overvoltage crowbar, rectification circuit and accumulator even, is connected with accumulator
Triggering circuit, and with trigger the controllable silicon that circuit and accumulator are all connected, described power supply stabilization circuit
It is connected with accumulator；Described coupling energy taking unit includes top crown and the bottom crown being parallel to each other；Described inspection
Surveying transmitting terminal is three, is separately mounted on A, B, C three-phase of high voltage electric equipment, with power supply voltage stabilizing electricity
The charged display lamp that road is connected is single-phase charged display lamp；The charged display lamp being connected with processor is three facies tracts
Electricity display lamp, it is characterised in that comprise the following steps:
(1) different for signal tranmitting frequency three detection transmitting terminals are separately mounted to high voltage electric equipment A,
On B, C three-phase；
(2) when high voltage electric equipment is charged, alternating electric field exists, the induction energy fetching device of detection transmitting terminal
Obtaining energy from alternating electric field, charged display lamp continuously sends out flash signal, and sound table resonator produces simultaneously
Oscillator signal, rf signal amplification circuit is transferred to launch antenna after being amplified by this oscillator signal carries out sending out
Send, when receiving display end and receiving the radiofrequency signal launching antenna transmitting, will by rf signal amplification circuit
The radiofrequency signal received is amplified, rf signal reception circuit be received the signal after amplifying,
And obtained the band telecommunications of each phase of high voltage electric equipment by frequency sweep nuclear phase processing procedure by rf signal reception circuit
Breath, is then transferred to band electrical information in processor by rf signal reception circuit, processor controls three-phase
Charged display lamp demonstrates each facies tract electrical information, and exports block signal；When high voltage electric equipment is not charged,
Alternating electric field disappears, and detection transmitting terminal stops sending signal.
The most according to claim 1 a kind of high voltage display device is utilized to carry out HV live displaying
Method, it is characterised in that in described step (1), induction energy fetching device based on field coupling is by following
Step carry out taking can:
(1a) top crown of coupling energy taking unit is connected on high-voltage charged body；
(1b) alternating current top crown and the bottom crown of coupling energy taking unit formed under electric field action connects
To anti-overvoltage crowbar, afterwards alternating current is connected to rectification circuit；
(1c) AC rectification is unidirectional current output by rectification circuit, and charges accumulator；
(1d) being connected with controllable silicon and triggering circuit by accumulator, regulation controllable silicon and triggering circuit control
Accumulator is charged or discharges, and the electric energy after electric discharge is connected to power supply stabilization circuit.
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| CN201410040863.1A CN103743937B (en) | 2014-01-28 | 2014-01-28 | A kind of method utilizing high voltage display device to carry out HV live displaying |
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| CN201410040863.1A CN103743937B (en) | 2014-01-28 | 2014-01-28 | A kind of method utilizing high voltage display device to carry out HV live displaying |
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| CN103743937B true CN103743937B (en) | 2017-01-04 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104362520A (en) * | 2014-10-23 | 2015-02-18 | 国家电网公司 | Intelligent high voltage verification display and block system of substation |
| CN104300515A (en) * | 2014-10-30 | 2015-01-21 | 国网河南省电力公司平顶山供电公司 | Live part verification information recognition and intelligent protection device for transformer substation |
| CN104267247A (en) * | 2014-10-30 | 2015-01-07 | 国家电网公司 | Inductive power-taken high-voltage power verifying displayer |
| CN105403757A (en) * | 2015-12-03 | 2016-03-16 | 中色科技股份有限公司 | Intelligent safety bracelet for maintenance and debugging of alternating-current electrical equipment |
| CN107945475A (en) * | 2017-11-01 | 2018-04-20 | 安徽康迈德电力保护设备有限公司 | Control 2.4G signals penetrate the device and method of corona layer outside super-pressure |
| CN108802479B (en) * | 2018-05-26 | 2023-07-07 | 杭州顿恒科技有限公司 | Equipotential high-voltage live-line monitoring device |
| CN113281556B (en) * | 2021-04-13 | 2023-10-20 | 广东电网有限责任公司广州供电局 | Charged display device and charged measurement system |
| CN114006376A (en) * | 2021-11-04 | 2022-02-01 | 广东电网有限责任公司 | Voltage replenisher |
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Address after: 610000 Sichuan city of Chengdu province high tech Zone Software Park Building No. 2 South Building Room 114 Patentee after: Sichuan Saikang intelligent Polytron Technologies Inc Address before: 610000 Sichuan city of Chengdu province high tech Zone Software Park Building No. 2 South Building Room 114 Patentee before: CHENGDU SCOM INTELLIGENT DETECTION TECHNOLOGY CO., LTD. |