CN103777061A - Remote-control electrification display locking device - Google Patents
Remote-control electrification display locking device Download PDFInfo
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- CN103777061A CN103777061A CN201410041528.3A CN201410041528A CN103777061A CN 103777061 A CN103777061 A CN 103777061A CN 201410041528 A CN201410041528 A CN 201410041528A CN 103777061 A CN103777061 A CN 103777061A
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Abstract
The invention relates to a remote-control electrification display locking device which comprises a three-circuit electric field sensor, an isolation amplifying circuit, a data processor, a wireless remote-control module, a temperature and humidity sensor and a display device. The electric field sensor and the temperature and humidity sensor are connected with the data processor through the isolation amplifying circuit. The wireless remote-control module comprises a wireless remote-control emission module and a wireless remote-control receiving module. The wireless remote-control receiving module is connected with the data processor. The safety production of an electric system becomes increasingly important along with the development of the national economy, and therefore the higher requirement for safe, reliable and stable high-voltage locking equipment is raised. By the adoption of the device, the safety, the accuracy and the reliability of installation, debugging and maintenance operation of high-voltage electrification locking are greatly improved, the safety risk is lowered, and the work intensity of operating maintenance personnel is reduced. The safe and stable operation of a power grid is effectively guaranteed, and the powerful support is provided for rapid development of economic construction and building of a harmonious society.
Description
Technical field
The present invention relates to a kind of electric misoperation prevention device, more particularly, relate to a kind of remote control electrified display interlock apparatus.
Background technology
Induction type high pressure charge shows that blocking device is that one prevents electric misoperation device, it is non-contact type high voltage measuring device with electricity, coordinate electromagnetic lock, shutting device to prevent mistakes in microcomputer, need the place of locking to realize safety interlocking to line-to-ground plug-in strip, busbar grounding plug-in strip and bus pressure change earthing switch blade and other, prevent electric misoperation.
Be, by sensor, the induction of periphery electric field is carried out to picked up signal, this mode has defect and deficiency, is mainly manifested in:
(1) its influence value difference to some extent when near the inconsistent or electric field intensity of mounting distance is inconsistent;
(2) signal is responded to by air, and the therefore variation of airborne medium parameter (as temperature, humidity, dust, rainwater etc.) also can cause the signal power sensing to change;
(3) after using for a long time, the meeting such as dust, dirt of piling up on sensor head has serious impact to influence value.
These defects often cause the wrong report of induction type electric interlock.At present, can only deal with situation about with the passing of time constantly changing by continuous, the artificial reference value of readjusting, this has improved the maintenance cost of equipment greatly.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one can adjust timely and effectively reference voltage value, it is time saving and energy saving to operate, and guarantees the remote control electrified display interlock apparatus of the normal identification of high pressure.
Technical scheme of the present invention is as follows:
A kind of remote control electrified display interlock apparatus, comprise No. three electric-field sensors, isolating amplifier circuit, data processor, wireless remote control module, Temperature Humidity Sensor, display device, electric-field sensor, Temperature Humidity Sensor are connected with data processor by isolating amplifier circuit, wireless remote control module comprises wireless remote control transmitter module, wireless remote control receiver module, and wireless remote control receiver module is connected with data processor;
Responded to the magnitude of voltage of its mounting points position by electric-field sensor, the humidity value of Temperature Humidity Sensor testing high voltage electrified body environment of living in amplifies by isolated amplifier respectively, then send into data processor, data processor calculates according to received data analysis, obtains reference voltage value;
The adjustment resolution of preset reference magnitude of voltage, wireless remote control module comprises two-way wireless remote control transmitter module, wireless remote control receiver module, regulate the size of reference voltage value by two-way wireless remote control module, when Dang Yi road wireless remote control module moves, reference voltage value is to adjust resolution as incremented, in the time that another road wireless remote control module moves, reference voltage value successively decreases take adjustment resolution as unit;
In the time that the induction of electric-field sensor is greater than reference voltage value, represent that transmission pressure is charged, display device is carried out charged information demonstration; In the time that the induction of electric-field sensor is less than reference voltage value, represent that transmission pressure is not charged, display device is carried out not charged information and is shown.
As preferably, adjusting resolution is the unit value that electric-field sensor changes setting height(from bottom), angle, controls by wireless remote control module.
As preferably, also comprise supportive conductors, sealant, sensitive surface, the first half of sensitive surface is spherical sensitive surface, the latter half is cylindrical sensitive surface, the cross section circular diameter of cylindrical sensitive surface is less than the diameter of spherical sensitive surface, electric-field sensor is positioned at the center position of spherical sensitive surface, sealant is filled between sensor and sensitive surface medial surface, supportive conductors is supported on the lower surface of sensing circuit, and extend downwards outside cylindrical sensitive surface, its cross section is less than the cross section area of a circle of cylindrical sensitive surface.
As preferably, the diameter of spherical sensitive surface is 56mm, and the distance of itself and inductor is greater than 15mm.
As preferably, the distance of cylindrical sensitive surface and supportive conductors is greater than 15mm.
As preferably, sealant is that epoxide resin material is made, casting seal sensor.
As preferably, data processor includes analog-to-digital conversion module and the microcomputer controlling module of sequentially electrical connection.
As preferably, isolating amplifier circuit is a kind of line rectification isolating amplifier circuit.
As preferably, wireless remote control transmitter module comprises wireless launcher and the emitting antenna of orderly connection; Wireless remote control receiver module comprises receiving antenna, modulator-demodular unit, demoder, the single-chip microcomputer of orderly connection, and single-chip microcomputer is connected with data processor.
Beneficial effect of the present invention is as follows:
One, economic benefit.This device has been filled up the blank of domestic this area research, from work efficiency and risk cost, not only increases work efficiency, and can operate reliably again, and minimizing equipment has a power failure the running time.Press one-level power supply enterprise of districts and cities and calculate, once reducing the running time that has a power failure is 3 hours, within 1 year, presses 100 times, and within 1 year, at least many deliveries more than 200 ten thousand are spent, and have greatly met regional society's industrial or agricultural and resident's normal need for electricity.The output value that produces 5 yuan by every kilowatt hour is estimated, is society's approximately 1,000 ten thousand yuan of industrial outpuuts that increase every year on average more.Eliminating this type of defect and calculate by one-level power supply enterprise of districts and cities, if drop into human and material resources, financial resources once by 2000 yuan of joint moneys, is 200 times by 1 year maintenance workload computing of one-level power supply enterprise of districts and cities, can save 400,000 yuan of moneys.
Two, social benefit.Along with the development of national economy, the importance that power system security is produced improves day by day, thereby safe and reliable stable high pressure interlock is proposed to requirements at the higher level.Adopt after this device, greatly promote electrification in high voltage locking and install, debugging, the security of inspection operation, accuracy, reliability, reduce security risk, alleviated operation maintenance personnel's working strength.Effective guarantee the safe and stable operation of electrical network, for the high speed development of economic construction with build a harmonious society and provide strong support.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of remote control electrified display interlock apparatus;
Fig. 2 is the structural representation of electric-field sensor;
In figure: the 1st, electric-field sensor, the 2nd, supportive conductors, the 3rd, sealant, the 4th, sensitive surface.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 1, a kind of remote control electrified display interlock apparatus, comprise No. three electric-field sensors, isolating amplifier circuit, data processor, wireless remote control module, Temperature Humidity Sensor, display device, electric-field sensor, Temperature Humidity Sensor are connected with data processor by isolating amplifier circuit, wireless remote control module comprises wireless remote control transmitter module, wireless remote control receiver module, and wireless remote control receiver module is connected with data processor.
Described isolating amplifier circuit is a kind of line rectification isolating amplifier circuit.
Can effectively isolate like this undesired signal, the influence value of simulation is carried out effectively amplifying and processing.
Data processor includes analog-to-digital conversion module and the microcomputer controlling module of sequentially electrical connection.
Analog-to-digital conversion module, for the analogue inductive value of acquisition is converted to digital signal, then carries out Accurate Analysis and computing by microcomputer controlling module, finally obtains adjustment scheme.
Responded to the magnitude of voltage of its mounting points position by electric-field sensor, the humidity value of Temperature Humidity Sensor testing high voltage electrified body environment of living in amplifies by isolated amplifier respectively, then send into data processor, data processor calculates according to received data analysis, obtains reference voltage value.
The adjustment resolution of preset reference magnitude of voltage, wireless remote control module comprises two-way wireless remote control transmitter module, wireless remote control receiver module, regulate the size of reference voltage value by two-way wireless remote control module, when Dang Yi road wireless remote control module moves, reference voltage value is to adjust resolution as incremented, in the time that another road wireless remote control module moves, reference voltage value successively decreases take adjustment resolution as unit.
Like this, just can adjust reference voltage value according to concrete environment and installation situation, and reference voltage value is transmitted and revised by the mode of wireless remote control, not only can adjust timely and effectively reference voltage value, and operate time saving and energy savingly, guarantee that induction type electric shows the normal effectively operation of blocking device.
In the time that the induction of electric-field sensor is greater than reference voltage value, represent that transmission pressure is charged, display device is carried out charged information demonstration; In the time that the induction of electric-field sensor is less than reference voltage value, represent that transmission pressure is not charged, display device is carried out not charged information and is shown.
Adjusting resolution is the unit value that electric-field sensor changes setting height(from bottom), angle, controls by wireless remote control module.
As shown in Figure 2, electric-field sensor 1 and supportive conductors 2, sealant 3, sensitive surface 4 is used in conjunction with, the first half of sensitive surface 4 is spherical sensitive surface 4, the latter half is cylindrical sensitive surface 4, the cross section circular diameter of cylindrical sensitive surface 4 is less than the diameter of spherical sensitive surface 4, electric-field sensor 1 is positioned at the center position of spherical sensitive surface 4, sealant 3 is filled between sensor and sensitive surface 4 medial surfaces, supportive conductors 2 is supported on the lower surface of sensing circuit, and extend downwards outside cylindrical sensitive surface 4, its cross section is less than the cross section area of a circle of cylindrical sensitive surface 4.
The diameter of spherical sensitive surface 4 is 56mm, and the distance of itself and inductor is greater than 15mm.
That is to say that sealant 3 is at least that 15mm is thick, guaranteed that moisture and the sensor in sensitive surface 4 do not contact completely, do not affect the normal work of sensor.
Cylindrical sensitive surface 4 is greater than 15mm with the distance of supportive conductors 2.
Like this, column type sensitive surface 4, just as the umbrella that blocks of supportive conductors 2, has guaranteed that rainwater can not take electric field in supportive conductors 2 to, guarantees that the reality of electric field induction is effective.
Epoxide resin material has good insulative water-proof performance, is therefore the preferred material of sensor sealant 3.
The mentality of designing of electric-field sensor 1 is as follows:
Consider that electric-field sensor 1 need be installed on outdoor, first need waterproof, electric-field sensor 1 adopts casting enclosure-type, and electric-field sensor 1 is hidden in epoxy resin.Electric-field sensor 1 is in the past in high humidity, or electric-field sensor 1 is not worked when the rainy day, and electric-field sensor 1 is responded to incorrect, thus erroneous judgement, so structurally carry out seal en-hancement.Further contemplate the stationarity of electric-field sensor 1 influence value, the outer sensitive surface 4 of electric-field sensor 1 adopts sphere formula, selecting diameter is that the stainless steel ball of 56 millimeters is as sensitive surface 4, and electric-field sensor 1 has in inside with 4 of sensitive surface and is connected, other its local sensitive surface 4 (cylindrical sensitive surface 4) and electric-field sensor 1 supportive conductors 2 have the distance of 15 millimeters, when processing can make the rainy day like this, moisture in sensitive surface 4 and the moisture of inductor do not contact that (water is conductor here, the electric field of induction is due to the existence of moisture, walk around inductor, directly leading electronegative potential along supportive conductors 2 from water goes), the value that after processing like this, rainy day electric-field sensor 1 is responded to is exactly that actual sensed is come, solved high-voltage electriferous display locking device in the past responds to less than electric field the rainy day, or the problem that diminishes of electric field value.The quality of (electric-field sensor 1 still can be good at work under the environment of rainy day and high humidity after tested, and conforms to imagination result, and high humidity is responded to the voltage of coming and increased) electric-field sensor 1 directly has influence on data processing and judgement below.
Below concrete the result:
1. conventional electric-field sensor (sensitive surface 4 is for doing sphere, take metal bar as sensitive surface 4).
| Humidity (%Rh of unit) | Inductive voltage value |
| 52 | 50.6mv |
| 66 | 61.4mv |
| 71 | 67.9mv |
| 85 | 48.1mv |
| Rainy day | 0---23.2mv |
2. sphere electric-field sensor (do not do encapsulation process, do not do waterproof rain-proof processing).
| Humidity (%Rh of unit) | Inductive voltage value |
| 52 | 1153mv |
| 66 | 1260mv |
| 71 | 1203mv |
| 85 | 986.8mv |
| Rainy day | 0---33.6mv |
3. the sensor (sphere sense is answered, encapsulation process, waterproof rain-proof) after improving
| Humidity (%Rh of unit) | Inductive voltage value |
| 52 | 1159mv |
| 66 | 1288mv |
| 71 | 1327mv |
| 85 | 1516mv |
| Rainy day | 1824mv |
The condition restriction that is put to the test can only be tested under open type environment, selects different weather situation to record above data, because test figure is larger, only adopts 5 groups of data here as a reference.
When concrete enforcement, first No. three electric-field sensors 1, sense the ultra-weak electronic signal of electric field around, transfer back in control box by shielding line, due to very faint of signal, load capacity is poor, the system that is not easy to directly gathers, for the more effective power of electric field around that reflects, so the feeble signal of first induction being returned is processed through amplifying, in the present embodiment, adopt precision linear rectification amplifying circuit, consider simultaneously and may have signal EVAC (Evacuation Network Computer Model), in amplifying circuit, add shielding system, signal, power supply, output 3 is to isolation, faint electric signal is through amplifying after processing, the d. c. voltage signal of output direct current 0-5V.Signal is delivered in Siemens's analog-to-digital conversion module, the voltage signal of simulation is exported with digital signal, be transported in Siemens's microcomputer controlling module, system is carried out Treatment Analysis by the digital signal receiving, error correction, judges whether three-phase power transmission wire is with high pressure.
Analyze debugging, first the in the situation that of not having high pressure on the road of not transmitting electricity or in the do not transmit electricity place on road of spaciousness, check the influence value that whether has of three electric-field sensors 1, or influence value be how many (owing to may there being faint electric field around), influence value is in such cases regarded as to uncharged situation.Then Jiang No. tri-electric-field sensors 1 are installed to the place of safety under 3 phase high voltage electricity transmission conductive wires.Electric-field sensor 1 correspondence be arranged on A, B, C three-phase power transmission wire under, due to ABC three-phase, with high pressure, it has stronger electric field around, sensor sensing to magnitude of voltage be also more intense, system now judges that circuit is with high pressure, now the pilot lamp of display device is bright, and cue circuit is charged.
Due to the height of installation of sensors, angle, capital has influence on the size of induced voltage, so need to adjust, microcomputer controlling module coordinates wireless remote control receiver module, wireless remote control receiver module receives the signal of wireless remote-transmitter module, and signal reaction, to microcomputer controlling module, is adjusted.
Wireless remote control transmitter module comprises wireless launcher and the emitting antenna of orderly connection; Wireless remote control receiver module comprises receiving antenna, modulator-demodular unit, demoder, the single-chip microcomputer of orderly connection, and single-chip microcomputer is connected with data processor.
Due to the environment difference (or having electric first body of increasing around) of electrified display interlock apparatus installation, it is also different that surrounding magnetic field distributes, it is also different that electric-field sensor 1 is responded to the induced voltage of coming so, judging that the whether charged reference voltage value of transmission pressure also needs to adjust so.
High voltage display device in the past, by regulating adjustable resistance or the form with dial-up, very inconvenient, time one elongate elements resistance drift, corresponding reference value also can change.
The present invention adopts wireless remote control technology, provides signal by wireless remote control transmitter module, and wireless remote control receiver module receives the signal of wireless remote control transmitter module, makes corresponding variation.Wireless remote control module adopts radio coding and decoding mode, and this mode is not limited by directivity, can long-distance control, the frequency stabilization of the inner employing of transmitter import sound table resonator, frequency invariance is very good, and degree of stability is high, frequency of operation 315MHZ, does not need aligning just can operate.
Because this device is installed in open air, environment is severe, so the voltage signal of induction also can be different under different environment, if process bad will erroneous judgement by accident, for this kind of situation, need to compare to the induced voltage under varying environment, then adjust according to actual conditions.
In a space of putting outward, especially in transformer station, the magnetic field that exists the first body of various electricity to produce around, know according to Biot-Savart law, be that the magnetic field intensity that produces on diverse location of the first body of each electricity is different, can not, once having detected that electric signal thinks that transmission pressure is charged, be likely that external magnetic field produces measuring transmission pressure when whether charged.Through the collection of the inspection of the scene of a crime and related data, reference voltage value concept is proposed, whether reference voltage value is mainly used in comparing to signal with actual acquisition, charged as judging transmission pressure.And find in actual test experiments, in the different time, it is also different gathering the voltage signal coming.So in the time of judged result, also need because of time discuss.
Through inquiry great mass of data and lot of experiments test data; what finally draw major effect induced voltage is humidity; so Temperature Humidity Sensor is installed in electrified display interlock apparatus; Temperature Humidity Sensor adopts the original-pack warm and humid measuring unit of import Switzerland; circuit adopts the isolation of digitized processing signal to amplify; cut-off frequency is disturbed design (antijamming capability is strong, anti-lightning strike) overvoltage protection, current-limiting protection.Moisture measurement scope: 0-100%rh, humidity error ± 3%Rh, sample frequency≤2ms.Monitor the weather condition on the same day.
Due to the restriction of the condition of being put to the test, cannot imitate out outdoor actual environment situation indoor, so proving installation is installed to scene, the data of software records every day, data comprise the humiture situation on the same day, also have corresponding induced voltage data, and data are stored.
Through the collection of the data of 2 months, obtain a large amount of data, by knowing Changing Pattern wherein to the analysis of data.
Below some experimental datas, when transmission pressure is charged.
| Humidity (%Rh of unit) | Inductive voltage value (the mV of unit |
| 49 | 1120 |
| 50 | 1135 |
| 52 | 1159 |
| 58 | 1225 |
| 66 | 1288 |
| 71 | 1327 |
| 73 | 1421 |
| Rainy day | 1824 |
From experimental data, can be easy to just can find out the impact of humidity on induced voltage.
Below some experimental datas, when transmission pressure is uncharged.
| Humidity (%Rh of unit) | Inductive voltage value (the mV of unit |
| 49 | 480 |
| 50 | 495 |
| 52 | 521 |
| 58 | 560 |
| 66 | 610 |
| 71 | 652 |
| 73 | 681 |
| Rainy day | 723 |
Above two groups of data are closed-loop path induced voltages through linearity amplify process after the data of (amplification coefficient is identical), by two table comparings, find that closed-loop path also can sense voltage in the uncharged situation of transmission pressure, think that sensor has induced voltage just to judge that transmission pressure is charged if just subjective, that judgement is wrong, cannot operate like this when power failure needs maintenance.
So the induced voltage signal collecting is analyzed, get reference voltage value point as a comparison, the induced voltage that sensor detected when system during lower than reference voltage value, is judged as transmission pressure not charged, in the time that system detects higher than reference voltage value, judges that transmission pressure is charged.The setting of reference voltage value is relevant with sensor enlargement factor, need be according to actual conditions adjustment.
Above-described embodiment is only for the present invention is described, and not as limitation of the invention.As long as according to technical spirit of the present invention, to above-described embodiment change, modification etc. all will drop in the scope of claim of the present invention.
Claims (9)
1. a remote control electrified display interlock apparatus, it is characterized in that, comprise No. three electric-field sensors, isolating amplifier circuit, data processor, wireless remote control module, Temperature Humidity Sensor, display device, electric-field sensor, Temperature Humidity Sensor are connected with data processor by isolating amplifier circuit, wireless remote control module comprises wireless remote control transmitter module, wireless remote control receiver module, and wireless remote control receiver module is connected with data processor;
Responded to the magnitude of voltage of its mounting points position by electric-field sensor, the humidity value of Temperature Humidity Sensor testing high voltage electrified body environment of living in amplifies by isolated amplifier respectively, then send into data processor, data processor calculates according to received data analysis, obtains reference voltage value;
The adjustment resolution of preset reference magnitude of voltage, wireless remote control module comprises two-way wireless remote control transmitter module, wireless remote control receiver module, regulate the size of reference voltage value by two-way wireless remote control module, when Dang Yi road wireless remote control module moves, reference voltage value is to adjust resolution as incremented, in the time that another road wireless remote control module moves, reference voltage value successively decreases take adjustment resolution as unit;
In the time that the induction of electric-field sensor is greater than reference voltage value, represent that transmission pressure is charged, display device is carried out charged information demonstration; In the time that the induction of electric-field sensor is less than reference voltage value, represent that transmission pressure is not charged, display device is carried out not charged information and is shown.
2. remote control electrified display interlock apparatus according to claim 1, is characterized in that, adjusting resolution is the unit value that electric-field sensor changes setting height(from bottom), angle, controls by wireless remote control module.
3. remote control electrified display interlock apparatus according to claim 1, it is characterized in that, also comprise supportive conductors, sealant, sensitive surface, the first half of sensitive surface is spherical sensitive surface, the latter half is cylindrical sensitive surface, the cross section circular diameter of cylindrical sensitive surface is less than the diameter of spherical sensitive surface, electric-field sensor is positioned at the center position of spherical sensitive surface, sealant is filled between sensor and sensitive surface medial surface, supportive conductors is supported on the lower surface of sensing circuit, and extend downwards outside cylindrical sensitive surface, its cross section is less than the cross section area of a circle of cylindrical sensitive surface.
4. remote control electrified display interlock apparatus according to claim 3, is characterized in that, the diameter of spherical sensitive surface is 56mm, and the distance of itself and inductor is greater than 15mm.
5. remote control electrified display interlock apparatus according to claim 4, is characterized in that, the distance of cylindrical sensitive surface and supportive conductors is greater than 15mm.
6. remote control electrified display interlock apparatus according to claim 5, is characterized in that, sealant is that epoxide resin material is made, casting seal sensor.
7. remote control electrified display interlock apparatus according to claim 1, is characterized in that, data processor includes analog-to-digital conversion module and the microcomputer controlling module of sequentially electrical connection.
8. remote control electrified display interlock apparatus according to claim 7, is characterized in that, isolating amplifier circuit is a kind of line rectification isolating amplifier circuit.
9. remote control electrified display interlock apparatus according to claim 1, is characterized in that, wireless remote control transmitter module comprises wireless launcher and the emitting antenna of orderly connection; Wireless remote control receiver module comprises receiving antenna, modulator-demodular unit, demoder, the single-chip microcomputer of orderly connection, and single-chip microcomputer is connected with data processor.
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| CN105738681A (en) * | 2016-04-14 | 2016-07-06 | 中铁二院工程集团有限责任公司 | Live-line indicating device and method for power line |
| CN110661342A (en) * | 2019-10-22 | 2020-01-07 | 成都高斯电子技术有限公司 | Electrical equipment hidden danger monitoring system and working method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105738681A (en) * | 2016-04-14 | 2016-07-06 | 中铁二院工程集团有限责任公司 | Live-line indicating device and method for power line |
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| CN110661342B (en) * | 2019-10-22 | 2023-04-11 | 成都高斯电子技术有限公司 | Electrical equipment hidden danger monitoring system and working method thereof |
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