CN109188059B - Step voltage detection method and device - Google Patents
Step voltage detection method and device Download PDFInfo
- Publication number
- CN109188059B CN109188059B CN201811174589.1A CN201811174589A CN109188059B CN 109188059 B CN109188059 B CN 109188059B CN 201811174589 A CN201811174589 A CN 201811174589A CN 109188059 B CN109188059 B CN 109188059B
- Authority
- CN
- China
- Prior art keywords
- high potential
- step voltage
- voltage detection
- point
- cylindrical surface
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
Abstract
The invention discloses a step voltage detection method and a step voltage detection device, the method comprises the steps of marking a low potential point and a high potential point in a region to be detected, taking the high potential point as a base point, taking the direction from the low potential point to the high potential point as a moving direction, moving linearly along the moving direction, marking a direction change point from the low potential point to the high potential point, and then measuring for a plurality of times to determine a plurality of potential direction change points.
Description
Technical Field
The invention relates to the field of voltage detection, in particular to a step voltage detection method and device.
Background
When the electric equipment is in a ground fault, current flows out from the grounding electrode in a scattered way, different potential distributions are formed on the ground, when a person approaches a short circuit place, the potential difference between two feet is called step voltage, when the person is positioned in a range of 8-10 meters away from the ground fault of the electric equipment, an electric shock accident can occur, when the step voltage reaches 40-50V, the person is in danger of electric shock, particularly, the step voltage can fall down to further increase the electric shock voltage of the human body, even the person is in electric shock death, the blind rescue can cause a continuous human casualty accident, and in addition, the step voltage has high concealment. The method has the advantages that no obvious physical phenomenon exists, whether step voltage exists or not cannot be judged, and the central position of the grounding point is not easy to find.
Disclosure of Invention
In order to solve the problems, the invention provides a step voltage detection method and a step voltage detection device, which are used for accurately detecting the position of a step voltage grounding point and a region with larger step voltage, and timely giving an alarm so as to avoid the risk of entering the step voltage region by mistake.
The technical scheme provided by the invention is as follows:
a step voltage detection method is characterized in that: the method comprises the following steps:
step one: marking low potential points and high potential points in a region to be measured;
step two: taking a high potential point as a basic point, taking the direction from low potential to high potential point as a moving direction, performing linear motion along the moving direction, detecting whether the direction from low potential to high potential is the same as the direction from low potential to high potential of the basic point in real time, if so, continuing to keep linear motion, and if not, stopping moving, and marking the high potential point at the moment, namely a second high potential point;
step three: marking new low potential points and high potential points in the region to be measured again, repeating the second step,
step four: and connecting the second high potential points determined for multiple times, wherein the area surrounded by the second high potential points is a grounding point, namely the center point of the step voltage.
The utility model provides a step voltage detection device, includes column running gear, evenly be provided with multiunit position pilot lamp along the circumferencial direction on column running gear's the last cylinder, evenly be provided with the universal metal conducting wheel corresponding with last cylinder position pilot lamp along circumference on the lower cylinder, be provided with drive wheel and leading wheel on the lower cylinder, be provided with intelligent control ware in the column running gear, universal metal wheel is connected with intelligent control ware electricity.
The number of the direction indicator lamps can be uniformly set according to the diameter of the cylindrical surface, and the direction indicator lamps are unidirectional arrow indicator lamps which are radially distributed and point to the outside of the circumference.
The columnar walking device is internally provided with a loudspeaker, the upper cylindrical surface is provided with a plurality of groups of loudspeaker sound outlets corresponding to the azimuth indicator lamps, and the loudspeaker is electrically connected with the intelligent controller.
The universal metal conductive wheel is fixedly connected with the lower cylindrical surface through an elastic element.
The elastic element is a spring, and a spring sleeve is sleeved on the outer side of the spring.
The driving wheels are symmetrically arranged, the positions of the two driving wheels and the positions of the guide wheels are distributed in a triangle, the guide wheels and the driving wheels are connected with a driving motor, and the driving motor is electrically connected with an intelligent controller.
The intelligent controller is a singlechip.
The invention provides a step voltage detection method and a step voltage detection device, which are used for detecting step voltage according to different directions from low potential to high potential on the same straight line on two sides of a step voltage grounding point. The voltage detection device converts intangible step voltage into an acousto-optic signal, plays a role in warning, and can accurately determine the central position of the step voltage and the step voltage coverage area so as to conveniently warn and avoid the risk of mistakenly touching the step voltage.
Drawings
Fig. 1: and (3) a step voltage detection method.
Fig. 2: integral structure diagram of step voltage detecting device.
Fig. 3: a top view and a bottom view of the step voltage detection device.
Fig. 4: the metal conductive wheel structure is schematically shown.
Fig. 5: the step voltage detection device detects the schematic diagram in a step voltage region.
1. Column running gear, 2 azimuth indicator lamp, 3 speaker sound hole, 4 drive wheel, 5 leading wheel, 6 metal conductive wheel
7. Elastic element, 8, spring sleeve, 9, wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. It is obvious that the described examples of embodiment are only part of the invention. All other embodiments, which are obtained by those skilled in the art without making any inventive effort, are within the scope of the present invention based on the embodiments of the present invention.
As shown in fig. 1, a step voltage detection method is characterized in that: the method comprises the following steps:
step one: marking low potential points and high potential points in a region to be measured;
step two: taking a high potential point as a basic point, taking the direction from low potential to high potential point as a moving direction, performing linear motion along the moving direction, detecting whether the direction from low potential to high potential is the same as the direction from low potential to high potential of the basic point in real time, if so, continuing to keep linear motion, and if not, stopping moving, and marking the high potential point at the moment, namely a second high potential point;
step three: marking new low potential points and high potential points in the region to be measured again, repeating the second step,
step four: and connecting the second high potential points determined for multiple times, wherein the area surrounded by the second high potential points is a grounding point, namely the center point of the step voltage.
As shown in fig. 2-4, a step voltage detection device comprises a columnar running gear 1, wherein a plurality of groups of azimuth indicator lamps 2 are uniformly arranged on an upper cylindrical surface of the columnar running gear along the circumferential direction, universal metal conductive wheels 6 corresponding to the azimuth indicator lamps 2 of the upper cylindrical surface are uniformly arranged on a lower cylindrical surface along the circumferential direction, driving wheels 4 and guide wheels 5 are arranged on the lower cylindrical surface, an intelligent controller is arranged in the columnar running gear 1, and the universal metal conductive wheels 6 are electrically connected with the intelligent controller.
The number of the groups of the azimuth indicator lamps 2 can be uniformly set according to the diameter of the cylindrical surface, the number of the groups is sixteen, and the azimuth indicator lamps 2 are unidirectional arrow indicator lamps which are radially distributed and point to the outside of the circumference.
The columnar walking device is characterized in that a loudspeaker is arranged in the columnar walking device 1, a plurality of groups of loudspeaker sound outlets 3 corresponding to the azimuth indicator lamps 2 are arranged on the upper cylindrical surface, and the loudspeaker is electrically connected with the intelligent controller.
The universal metal conductive wheel 6 is fixedly connected with the lower cylindrical surface through an elastic element 7.
The elastic element 7 is a spring, the spring sleeve 8 is sleeved on the outer side of the spring, the springs are arranged on the universal metal conductive wheels 6, the sixteen groups of universal metal conductive wheels 6 at the bottom can be guaranteed to be positioned on the same horizontal plane, when the ground is uneven, the springs on the universal metal conductive wheels 6 with low concave parts are stretched, and the springs on the universal metal conductive wheels 6 at the upper convex parts are compressed, so that the sixteen groups of universal metal conductive wheels 6 at the bottom are guaranteed to be positioned on the same horizontal plane.
The driving wheels 4 are symmetrically arranged, the positions of the two driving wheels and the position of the guiding wheel 5 are distributed in a triangle, the guiding wheel 5 and the driving wheel 4 are connected with a driving motor, and the driving motor is electrically connected with an intelligent controller.
The intelligent controller is a singlechip, and the model of the singlechip is STM32F106C8T6 preferably.
The voltage detection device carries out carpet type slow movement in the area to be detected, and an intelligent controller in the voltage detection device acquires the voltage on each metal conductive wheel 6 in real time.
The intelligent controller analyzes and compares the voltage values, if the acquired voltage values are zero, no step voltage exists at the moment, if the voltage values have voltage differences, the metal conducting wheel generating the maximum voltage value and the metal conducting wheel generating the minimum voltage are determined, the azimuth indicator lamp corresponding to the metal conducting wheel generating the maximum voltage value is lightened, meanwhile, the loudspeaker sends out an alarm signal, and the position of the step voltage detection device at the moment is recorded.
As shown in fig. 5, the point at which the step voltage is detected is taken as a base point, the direction of the azimuth indicator lamp at the base point is taken as a moving direction, the step voltage detection device is controlled to move slowly, whether the azimuth indicator lamp on the step voltage detection device is consistent with the indication azimuth of the azimuth indicator lamp at the base point is monitored, and if the indication azimuth is changed, the change point is a grounding point, namely, the center point of the step voltage when the indication azimuth is changed.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent substitutions and improvements made to the above embodiments according to the technical substance of the present invention should be included in the scope of the technical solution of the present invention.
Claims (9)
1. A step voltage detection method is characterized in that: the method comprises the following steps:
step one: marking low potential points and high potential points in a region to be measured;
step two: taking a high potential point as a basic point, taking the direction from low potential to high potential point as a moving direction, performing linear motion along the moving direction, detecting whether the direction from low potential to high potential is the same as the direction from low potential to high potential of the basic point in real time, if so, continuing to keep linear motion, and if not, stopping moving, and marking the high potential point at the moment, namely a second high potential point;
step three: marking new low potential points and high potential points in the region to be measured again, repeating the second step,
step four: and connecting the second high potential points determined for multiple times, wherein the area surrounded by the second high potential points is a grounding point, namely the center point of the step voltage.
2. A storage medium, characterized by: stored on the memory are instructions executable by the processor for performing the method of claim 1.
3. A step voltage detection apparatus comprising the storage medium of claim 2, characterized by: the intelligent walking device comprises a columnar walking device, a plurality of groups of azimuth indicator lamps are uniformly arranged on an upper cylindrical surface of the columnar walking device along the circumferential direction, universal metal conductive wheels corresponding to the azimuth indicator lamps of the upper cylindrical surface are uniformly arranged on a lower cylindrical surface along the circumferential direction, driving wheels and guide wheels are arranged on the lower cylindrical surface, an intelligent controller is arranged in the columnar walking device, and the universal metal wheels are electrically connected with the intelligent controller.
4. The step voltage detecting device according to claim 3, wherein the number of sets of the azimuth indicator lamps is equal to the number of sets of the indicator lamps according to the diameter of the cylindrical surface, and the azimuth indicator lamps are unidirectional arrow indicator lamps which are radially distributed and directed to the outside of the circumference.
5. The step voltage detection device according to claim 3, wherein a speaker is arranged in the columnar walking device, a plurality of groups of speaker sound outlets corresponding to the azimuth indicator lamps are arranged on the upper cylindrical surface, and the speaker is electrically connected with the intelligent controller.
6. The step voltage detection device of claim 3, wherein the universal metal conductive wheel is fixedly connected with the lower cylindrical surface through an elastic element.
7. The step voltage detection device of claim 6, wherein the elastic element is a spring, and a spring sleeve is sleeved outside the spring.
8. The step voltage detection device according to claim 3, wherein the driving wheels are two and symmetrically arranged, the positions of the two driving wheels and the position of the guiding wheel are distributed in a triangle shape, the guiding wheel and the driving wheel are connected with a driving motor, and the driving motor is electrically connected with the intelligent controller.
9. The step voltage detection device of claim 3, wherein the intelligent controller is a single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174589.1A CN109188059B (en) | 2018-10-09 | 2018-10-09 | Step voltage detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174589.1A CN109188059B (en) | 2018-10-09 | 2018-10-09 | Step voltage detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109188059A CN109188059A (en) | 2019-01-11 |
| CN109188059B true CN109188059B (en) | 2023-09-05 |
Family
ID=64947596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174589.1A Active CN109188059B (en) | 2018-10-09 | 2018-10-09 | Step voltage detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109188059B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856446A (en) * | 2019-03-28 | 2019-06-07 | 国网河南省电力公司电力科学研究院 | A kind of octopus step voltage detection device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006027A1 (en) * | 1992-09-09 | 1994-03-17 | Henkels & Mccoy, Inc. | System and method of use for conducting a neutral corrosion survey |
| CN2838336Y (en) * | 2005-10-14 | 2006-11-22 | 河南安彩高科股份有限公司 | Ground voltage prewarning shoes |
| CN102508006A (en) * | 2011-11-21 | 2012-06-20 | 华北电力大学 | Step voltage multipoint fitting test method |
| JP2014081322A (en) * | 2012-10-18 | 2014-05-08 | Chugoku Electric Power Co Inc:The | Ground fault detection method and device using positive-phase, one-phase voltage |
| CN204008814U (en) * | 2014-07-25 | 2014-12-10 | 国网山西省电力公司大同供电公司 | Transmission line of electricity step voltage pick-up unit |
| CN104407205A (en) * | 2014-12-01 | 2015-03-11 | 国网上海市电力公司 | Step voltage alarm system |
| KR20150059089A (en) * | 2013-11-19 | 2015-05-29 | 이현창 | The method and apparatus for locating the udnePinpointing the earth leaking point under TN-C environment |
| CN105955250A (en) * | 2016-05-11 | 2016-09-21 | 国网山东省电力公司高唐县供电公司 | Remote-control step voltage alarm trolley and alarm method thereof |
| CN105974175A (en) * | 2016-04-29 | 2016-09-28 | 南方电网科学研究院有限责任公司 | Method and device for arranging buried pipeline local grounding points |
| CN205679678U (en) * | 2016-06-03 | 2016-11-09 | 三峡大学 | A kind of ground step voltage detection device |
| CN106291067A (en) * | 2016-10-28 | 2017-01-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of step voltage method of testing of extra-high voltage direct-current vertical grounding electrode |
| CN106291075A (en) * | 2016-10-20 | 2017-01-04 | 国网山东省电力公司菏泽供电公司 | A kind of wearable step voltage warning device |
| CN206311708U (en) * | 2017-01-04 | 2017-07-07 | 国网河南省电力公司新密市供电公司 | On-line monitoring of cable device and its system |
| CN108109500A (en) * | 2017-12-08 | 2018-06-01 | 北京叮咣网络科技有限公司 | A kind of step voltage somatosensory device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11201604986VA (en) * | 2013-11-19 | 2016-07-28 | Hyun Chang Lee | Mobile electric leakage detection device and method |
-
2018
- 2018-10-09 CN CN201811174589.1A patent/CN109188059B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006027A1 (en) * | 1992-09-09 | 1994-03-17 | Henkels & Mccoy, Inc. | System and method of use for conducting a neutral corrosion survey |
| CN2838336Y (en) * | 2005-10-14 | 2006-11-22 | 河南安彩高科股份有限公司 | Ground voltage prewarning shoes |
| CN102508006A (en) * | 2011-11-21 | 2012-06-20 | 华北电力大学 | Step voltage multipoint fitting test method |
| JP2014081322A (en) * | 2012-10-18 | 2014-05-08 | Chugoku Electric Power Co Inc:The | Ground fault detection method and device using positive-phase, one-phase voltage |
| KR20150059089A (en) * | 2013-11-19 | 2015-05-29 | 이현창 | The method and apparatus for locating the udnePinpointing the earth leaking point under TN-C environment |
| CN204008814U (en) * | 2014-07-25 | 2014-12-10 | 国网山西省电力公司大同供电公司 | Transmission line of electricity step voltage pick-up unit |
| CN104407205A (en) * | 2014-12-01 | 2015-03-11 | 国网上海市电力公司 | Step voltage alarm system |
| CN105974175A (en) * | 2016-04-29 | 2016-09-28 | 南方电网科学研究院有限责任公司 | Method and device for arranging buried pipeline local grounding points |
| CN105955250A (en) * | 2016-05-11 | 2016-09-21 | 国网山东省电力公司高唐县供电公司 | Remote-control step voltage alarm trolley and alarm method thereof |
| CN205679678U (en) * | 2016-06-03 | 2016-11-09 | 三峡大学 | A kind of ground step voltage detection device |
| CN106291075A (en) * | 2016-10-20 | 2017-01-04 | 国网山东省电力公司菏泽供电公司 | A kind of wearable step voltage warning device |
| CN106291067A (en) * | 2016-10-28 | 2017-01-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of step voltage method of testing of extra-high voltage direct-current vertical grounding electrode |
| CN206311708U (en) * | 2017-01-04 | 2017-07-07 | 国网河南省电力公司新密市供电公司 | On-line monitoring of cable device and its system |
| CN108109500A (en) * | 2017-12-08 | 2018-06-01 | 北京叮咣网络科技有限公司 | A kind of step voltage somatosensory device |
Non-Patent Citations (1)
| Title |
|---|
| 电气化牵引线路杆塔故障时跨步电位差 与接触电位差分析;任华钢;《湖南电力》;第31卷(第3期);第25-28页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109188059A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109188059B (en) | Step voltage detection method and device | |
| CN101759102A (en) | Inclination alarming device of tower crane | |
| CN209086317U (en) | A kind of step voltage detection device | |
| CN205679678U (en) | A kind of ground step voltage detection device | |
| JP2014227125A (en) | Tire wear detection device | |
| CN201762042U (en) | Tower-crane inclination alarming device | |
| CN204008814U (en) | Transmission line of electricity step voltage pick-up unit | |
| CN206772393U (en) | A kind of SEA LEVEL VARIATION monitoring device | |
| CN110824238A (en) | Electric field induction type non-contact electroscope and self-checking method thereof | |
| CN106263216B (en) | Anti-misoperation touch electric shock safety helmet based on ultrasonic ranging technology | |
| US2145363A (en) | Pressure indicating mechanism for motor vehicle tires | |
| US4205452A (en) | Measuring set for determination of the sagittal depth and the average central curvature of gel contact lenses | |
| CN204718556U (en) | A kind of bearing with end cover room inside diameter detection device | |
| CN110706457B (en) | Earthquake detection equipment | |
| US11051742B2 (en) | Wearable device and respiration sensing module | |
| CN203350346U (en) | Potential indicator with temperature measuring function | |
| CN215725847U (en) | Measure nickel titanium alloy silk straightness's rotatory jump type detection device | |
| CN203785614U (en) | Rotary position detection device for valve core of rotary valve | |
| US10782150B2 (en) | Direction sensor | |
| JPH1123266A (en) | Inclincation sensor | |
| CN205229183U (en) | Measure mercury sensor of acceleration | |
| CN214427333U (en) | Online moisture meter contact structure | |
| CN218229319U (en) | Navigation mark with off-position alarm function | |
| CN211555206U (en) | Compound button for training coordination ability of autism children | |
| CN220188616U (en) | Induction type electricity inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |