CN105607067A - Measurement method for measuring burying depth of wire pole - Google Patents
Measurement method for measuring burying depth of wire pole Download PDFInfo
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- CN105607067A CN105607067A CN201610053080.6A CN201610053080A CN105607067A CN 105607067 A CN105607067 A CN 105607067A CN 201610053080 A CN201610053080 A CN 201610053080A CN 105607067 A CN105607067 A CN 105607067A
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- electric pole
- ultrasonic
- ultrasonic signal
- burying depth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a measurement method for measuring a burying depth of a wire pole. The measurement method comprises the following steps: emitting ultrasonic wave signals to a cavity through a signal generation apparatus at a first position, which is disposed on the ground, of the wire pole; detecting the ultrasonic wave signals by use of an ultrasonic wave receiver at a second position, which is disposed on the ground, of the wire pole; and performing signal processing on the ultrasonic wave signals detected by the ultrasonic wave receiver, according to a processing result, identifying feature ultrasonic wave signals reflected by the bottom of the cavity, and according to the feature ultrasonic wave signals, calculating the burying depth of the wire pole. According to the measurement method provided by the invention, by use of a hollow structure of the wire pole, the burying depth of the wire pole can be calculated according to the feature ultrasonic wave signals reflected by the bottom of the cavity through emitting the ultrasonic wave signals to the cavity of the wire pole.
Description
Technical field
The present invention relates to power supply unit detection technique field, in particular, relate to a kind of for measuring electricityThe measuring method of line bar burying depth.
Background technology
Electric pole is applicable to city net rural power grids high-low pressure electric power transformation and various power overhead network and communication cableSetting up, is one of important infrastructure of power supply, communication. The safety of electric pole directly affects power supplyStability, the security that electric power is carried, especially, in the multiple coastal area of typhoon, electric pole is according to designRequirement will have enough buried degree of depth.
Produce thus a problem: how to judge the electric pole depth of burying. Most of electric pole buried depth qualityReach requirement, become the important infrastructure of promoting economic development with social progress, but because of various reasons,There is hidden danger in the part electric pole depth of burying, safety problem makes us surveying sorrow.
Therefore, how to judge that whether electric pole burying depth meets design requirement is current for electrical domain urgent needThe problem solving.
Summary of the invention
For addressing the above problem, the invention provides a kind of for measuring the measurement side of electric pole burying depthMethod, burying depth that can Quick Measurement electric pole.
To achieve these goals, the invention provides following technical scheme:
For measuring a measuring method for electric pole burying depth, described electric pole has the cement of chamberElectric pole, this measuring method comprises:
The primary importance place resting on the ground at described electric pole, by signal generation apparatus to described chamberInterior transmitting ultrasonic signal;
The second place place resting on the ground at described electric pole, adopts ultrasonic receiver to detect ultrasonic waveSignal;
The ultrasonic signal that described ultrasonic receiver is detected carries out signal processing, according to resultThe feature ultrasonic signal of identifying described cavity bottom reflection, calculates institute according to described feature ultrasonic signalState the burying depth of electric pole.
Preferably, in above-mentioned measuring method, the described ultrasonic wave that described ultrasonic receiver is detectedSignal carries out signal processing, identifies the feature ultrasonic signal of described cavity bottom reflection according to resultComprise:
The ultrasonic signal detecting according to described ultrasonic receiver obtains shape information;
Carry out filtering processing, with waveform letter corresponding to the ultrasonic wave of horizontal transmission in shape information described in filteringBreath;
In filtered shape information, identify the ripple corresponding to feature ultrasonic signal of cavity bottom reflectionShape information;
Calculate the burying depth of described electric pole according to shape information corresponding to described feature ultrasonic signal.
Preferably, in above-mentioned measuring method, described according to waveform corresponding to described feature ultrasonic signalThe burying depth that information is calculated described electric pole comprises:
Obtain and detect that first described feature ultrasonic signal and described signal generation apparatus start to described chamberThe time interval between indoor transmitting ultrasonic signal;
High apart from ground apart from ground level, the described second place according to the described time interval, described primary importanceDegree and hyperacoustic spread speed are calculated described burying depth;
Wherein, two of described burying depth times of products that equal the described time interval and described spread speed subtractGo described primary importance apart from ground level, then deduct the described second place apart from ground level.
Preferably, in above-mentioned measuring method, described in filtered shape information, identify chamber at the bottom ofThe shape information corresponding to feature ultrasonic signal of portion's reflection comprises:
Identify according to the attenuation characteristic of described shape information the waveform letter that described feature ultrasonic signal is correspondingBreath.
Preferably, in above-mentioned measuring method, also comprise: the burying depth of showing described electric pole.
Preferably, in above-mentioned measuring method, the burying depth of the described electric pole of described displaying comprises: aobviousShow described burying depth or by burying depth described in voice broadcast.
Known by foregoing description, measuring method provided by the invention comprises: be positioned in ground at described electric polePrimary importance place on face launches ultrasonic signal by signal generation apparatus in described chamber; InstituteState the second place place that electric pole rest on the ground, adopt ultrasonic receiver to detect ultrasonic signal; RightThe ultrasonic signal that described ultrasonic receiver detects carries out signal processing, according to result identification instituteThe feature ultrasonic signal of stating cavity bottom reflection, calculates described electric wire according to described feature ultrasonic signalThe burying depth of bar. This measuring method is utilized the hollow structure of electric pole, can be by the chamber to electric poleIndoor transmitting ultrasonic signal, calculates covering of electric pole according to the feature ultrasonic signal of cavity bottom reflectionBuried depth degree.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, notPay under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
The schematic flow sheet of a kind of measuring method that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of a kind of signal processing method that Fig. 2 provides for the embodiment of the present invention;
The flow process signal of a kind of burying depth method of calculating electric pole that Fig. 3 provides for the embodiment of the present inventionFigure;
The structural representation of a kind of hand-held measuring instrument that Fig. 4 provides for the embodiment of the present invention;
The structural representation of a kind of processor that Fig. 5 provides for the embodiment of the present invention;
A kind of principle schematic of measuring electric pole burying depth that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only the present invention's part embodiment, andNot whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
When prior art detects the burying depth of concrete wire pole, a kind of mode is to utilize cement electricityThe pyramidal structure of line bar, calculates burying depth by how much mathematical way, need to instruct electric pole to be detectedThe special parameter of corresponding pyramidal structure, and which computational process complexity, efficiency is lower.
The mode of burying depth of calculating electric pole also comprises by mark scale designation on electric pole, withBe convenient to detect burying depth. If by forming groove or projection as described yardstick mark on electric poleRemember, can affect outward appearance, mechanical strength and the service life of electric pole. If by coating or put upMark is as described scale designation, in transport or installing wire bar or long-time use procedure,Scale designation easily comes off or weares and teares, once scale designation easily come off or wear and tear, cannot be directObtain the burying depth of electric pole by reading marking scales.
In order to address the above problem, the invention provides a kind of for measuring the measurement of electric pole burying depthMethod, this measuring method as shown in Figure 1, the stream of a kind of measuring method that Fig. 1 provides for the embodiment of the present inventionJourney schematic diagram, this measuring method comprises:
Step S11: the primary importance place resting on the ground at described electric pole, by signal generation apparatus toTransmitting ultrasonic signal in described chamber.
This signal generation apparatus can be ultrasonic signal generator. Concrete, can be supersonic gas hammerFor launching the ultrasonic signal of setpoint frequency. Directly knock electric pole in bottom surface by ultrasonic wave pneumatic hammerUltrasonic signal can be launched in the surface of outer part in the chamber of electric pole, simple and quick.
Step S12: the second place place resting on the ground at described electric pole, adopts ultrasonic receiver inspectionSurvey ultrasonic signal.
Step S13: the ultrasonic signal that described ultrasonic receiver is detected carries out signal processing, according toResult is identified the feature ultrasonic signal of described cavity bottom reflection, according to described feature ultrasonic wave letterNumber calculate the burying depth of described electric pole.
In this measuring method, the described ultrasonic signal that described ultrasonic receiver is detected carries out letterNumber process, identify the method for feature ultrasonic signal of described cavity bottom reflection according to result as Fig. 2Shown in, the schematic flow sheet of a kind of signal processing method that Fig. 2 provides for the embodiment of the present invention, the methodComprise:
Step S21: the ultrasonic signal detecting according to described ultrasonic receiver obtains shape information.
Step S22: carry out filtering processing, with the ultrasonic wave correspondence of horizontal transmission in shape information described in filteringShape information.
Step S23: the feature ultrasonic signal that identifies cavity bottom reflection in filtered shape informationCorresponding shape information.
After determining this feature ultrasound information, the waveform letter corresponding according to described feature ultrasonic signalBreath calculates the burying depth of described electric pole. Can by shape information corresponding to described feature ultrasonic signalTo determine the moment that described feature ultrasonic signal detected first.
In this measuring method, the described shape information calculating institute corresponding according to described feature ultrasonic signalState the burying depth of electric pole as shown in Figure 3, the one calculating electric wire that Fig. 3 provides for the embodiment of the present inventionThe schematic flow sheet of the burying depth method of bar, the method comprises:
Step S31: obtain and detect that first described feature ultrasonic signal and described signal generation apparatus startIn described chamber, launch the time interval between ultrasonic signal.
Moment while starting to launch ultrasonic signal in described chamber according to described signal generation apparatus andThe moment that described feature ultrasonic signal detected first can be determined the described time interval.
Step S32: according to the described time interval, described primary importance apart from ground level, the described second placeCalculate described burying depth apart from ground level and hyperacoustic spread speed.
Wherein, two of described burying depth times of products that equal the described time interval and described spread speed subtractGo described primary importance apart from ground level, then deduct the described second place apart from ground level.
Optionally, the described feature ultrasonic wave that identifies cavity bottom reflection in filtered shape informationThe shape information that signal is corresponding comprises: identify described feature according to the attenuation characteristic of described shape information superThe shape information that acoustic signals is corresponding. Feature ultrasonic signal propagates into cavity bottom from primary importance, warpAfter crossing cavity bottom reflection, obtained by ultrasonic receiver, propagate distance and fix, therefore feature ultrasonic waveThe attenuation characteristic of signal is fixed. Multiple ranging pulses of signal generation apparatus transmitting, although show launch timeDifference, but character pair ultrasonic signal has identical attenuation characteristic. That propagates from bottom to top is ultrasonicIn ripple signal, because feature ultrasonic signal is through the reflection of chamber bottommost, therefore its attenuation degree maximum.Utilize this principle can identify shape information corresponding to described feature ultrasonic signal.
For the ease of obtaining intuitively this burying depth, this measuring method also comprises: show described electric poleBurying depth. Concrete, the burying depth of the described electric pole of described displaying comprises: described in demonstration, buryThe degree of depth or by burying depth described in voice broadcast.
This measuring method is utilized the hollow structure of electric pole, can be super by transmitting in the chamber of electric poleAcoustic signals, according to the burying depth of the feature ultrasonic signal calculating electric pole of cavity bottom reflection.
The embodiment of the present invention also provides a kind of hand-held measuring instrument, for realizing above-mentioned measuring method, and shouldAs shown in Figure 4, Fig. 4 surveys for a kind of hand-held that the embodiment of the present invention provides the structure of hand-held measuring instrumentThe structural representation of amount instrument, for measuring the hand-held measuring instrument of electric pole burying depth, described electric poleHave the concrete wire pole of chamber, this hand-held measuring instrument comprises: signal generation apparatus 10, described signalGenerating means 10 for launching ultrasonic signal in described chamber; Signal processing apparatus 20, described signalTreating apparatus 20, for obtaining the ultrasonic signal in described chamber, carries out obtained ultrasonic signalSignal processing, identifies according to result the feature ultrasonic signal that described cavity bottom reflects, according to instituteState the burying depth that feature ultrasonic signal calculates described electric pole.
As shown in Figure 4, described signal processing apparatus 20 comprises: ultrasonic receiver 11 and processor12; Described ultrasonic receiver 11 is for obtaining the ultrasonic signal in described chamber; Described processor 12For described ultrasonic signal is carried out to signal processing, identify described cavity bottom reflection according to resultFeature ultrasonic signal, calculate the burying depth of described electric pole according to described feature ultrasonic signal.
This hand-held measuring instrument also comprises: housing; Described processor is arranged in described housing; Described shellSurface is provided with the first connection jaws, described ultrasonic receiver 11 by described the first connection jaws with described inProcessor 12 connects.
Described housing is for carrying out packaging protection to the electronic unit of described treating apparatus. Need to illustrateBe, in Fig. 4 and not shown described housing.
Optionally, this hand-held measuring instrument also comprises: be arranged on the display 13 in described housing; DescribedSurface of shell is provided with the display window relative with described display 13; Described processor 12 is also for controlMake described display 13 and show described burying depth. Show described burying depth by described display 13,Be convenient to the burying depth of user's quick obtaining electric pole.
The outer surface of described housing is also provided with fixture, and described fixture is used for placing described signalGenerating means 10. As above-mentioned signal generation apparatus 10 and the structure of signal processing apparatus 20 for separating. ShouldHand-held measuring instrument comprises mode of operation and park mode. When this hand-held measuring instrument is in the time working,This hand-held measuring instrument, for measuring the burying depth of electric pole, now passes through signal generation apparatus 10 to electricityIn line bar chamber, transmitting ultrasonic signal, calculates burying depth by signal processing apparatus 20. Hand-held when thisFormula measuring instrument, can be by this fixture in signal generation apparatus 10 fixed placement in the time of park modeAt the outer surface of the housing of signal processing apparatus 20, be convenient to the storage of this hand-held measuring instrument and carry.
This hand-held measuring instrument also comprises: memory 15, described memory 15 is for storing described electric poleBurying depth. Store described burying depth by memory 15, can be for the inquiry of historical data.
This hand-held measuring instrument also comprises: be arranged on the man-machine interaction panel 14 of housing outer surface, described peopleThe mutual panel 14 of machine is connected with described processor 12, and described man-machine interaction panel 14 is for inputting initial surveyAmount parameter. This initial parameter comprises: signal generation apparatus is to first of electric pole generation ultrasonic signalThe parameter of putting and signal processing apparatus obtain the second place parameter of ultrasonic signal.
Described signal generation apparatus 10 is connected with described signal processing apparatus 20 radio communications. Described signalGenerating means 10 comprises first communication module, flip flop equipment and the first clock module. When signal fillsPut 10 when launching ultrasonic signal in electric pole chamber, this flip flop equipment generation triggering signal that is triggered,Triggering signal control the first clock module records ultrasonic transmission device 10 and starts to launch in described chamber superIn the moment of acoustic signals, this moment is sent to signal processing apparatus 20 by first communication module.
Signal processing apparatus 20 can be processed dress by the hyperacoustic shape information tracer signal of the feature of identificationPut for 20 moment when described feature ultrasonic signal detected first.
In described signal processing apparatus, its processor can be as shown in Figure 5, and Fig. 5 is the invention processThe structural representation of a kind of processor that example provides. Processor shown in Fig. 5 is for carrying out ultrasonic signalSignal processing. This processor comprises: waveform processing unit 21, described waveform processing unit 21 is for basisThe ultrasonic signal detecting obtains shape information; Small echo processing unit 22, described small echo processing unit 22Be used for carrying out filtering processing, with waveform letter corresponding to the ultrasonic wave of horizontal transmission in shape information described in filteringBreath; Feature identification unit 23, described feature identification unit 23 is for identifying in filtered shape informationGo out the shape information corresponding to feature ultrasonic signal of cavity bottom reflection; Processing unit 24, described processingUnit 24 is for calculating burying of described electric pole according to shape information corresponding to described feature ultrasonic signalThe degree of depth.
Optionally, described processor also comprises: display unit, communication unit, push-button unit and storageUnit. Display unit, communication unit, push-button unit and memory cell are all connected with processing unit 24.Display unit carries out image demonstration for driving display. Communication unit is used for driving second communication module to enterSerial Communication. Case unit is used for driving the input of man-machine interaction panel response data. Memory cell is for drivingMemory carries out data storage. It should be noted that, not shown display unit in Fig. 5, communication unit,Push-button unit and memory cell.
Described in the embodiment of the present invention hand-held measuring instrument carry out electric pole burying depth measure principle as figureShown in 6, a kind of principle schematic of measuring electric pole burying depth that Fig. 6 provides for the embodiment of the present invention,Electric pole to be detected 31, signal generation apparatus 10 and signal processing apparatus are shown, in Fig. 6 in Fig. 6Only show ultrasonic receiver 11 and processor 12 in signal processing device. Its concrete structure can be joinedSee above-described embodiment description, do not repeat them here. In Fig. 6, the lower end of electric pole 31 is apart from the distance on groundFor H1, burying depth equals H1. Signal generation apparatus 10 is launched hyperacoustic position to electric pole chamberBe H2 apart from the distance on ground, ultrasonic receiver 11 obtains the positional distance of the ultrasonic signal in chamberThe distance on ground is H3.
While measuring the burying depth H1 of electric pole 31 by hand-held measuring instrument described in the embodiment of the present invention,The primary importance place resting on the ground at described electric pole 31, by signal generation apparatus 10 to described chamberIndoor transmitting ultrasonic signal; The second place place resting on the ground at described electric pole, adopts ultrasonic waveReceiver 11 detects ultrasonic signal; By processor 12, described ultrasonic receiver 11 is detectedUltrasonic signal carries out signal processing, and the feature of identifying described cavity bottom reflection according to result is ultrasonicRipple signal, calculates the burying depth of described electric pole according to described feature ultrasonic signal.
Optionally, the ultrasonic signal that processor 12 detects described ultrasonic receiver 11 carries out letterNumber process, the feature ultrasonic signal of identifying the reflection of described cavity bottom according to result comprises: processThe ultrasonic signal that device 12 detects according to described ultrasonic receiver 11 obtains shape information; Carry out againFiltering processing, with shape information corresponding to the ultrasonic wave of horizontal transmission in shape information described in filtering; ThenIn filtered shape information, identify the waveform letter corresponding to feature ultrasonic signal of cavity bottom reflectionBreath; Finally, calculate burying of described electric pole according to shape information corresponding to described feature ultrasonic signalThe degree of depth.
Processor 12 calculates covering of described electric pole according to shape information corresponding to described feature ultrasonic signalBuried depth degree comprises:
Processor 12 obtains and detects that first described feature ultrasonic signal and described ultrasonic transmission device openBegin, in described chamber, the time interval △ t between ultrasonic signal occurs; Then, according between the described timeEvery, described primary importance apart from ground level H2, the described second place apart from ground level H3 and ultrasonic waveSpread speed V calculate described burying depth H1. Wherein, two of burying depth H1 times while equaling describedBetween the product of interval △ t and described spread speed V deduct described primary importance apart from ground level H2, then subtractGo the described second place apart from ground level H3. Spread speed V is constant. Due to hyperacoustic ultrasonic velocitySpend greatlyr, and the burying depth of electric pole is generally several meters, with respect to this hyperacoustic spread speed, and canNegligible at the reflection process of chamber sidewall with feature ultrasonic signal, can be by feature ultrasonic waveSignal is considered as from primary importance straightline propagation to cavity bottom, after cavity bottom reflection, turns back to secondPosition is detected, and in this process, is 2*H1+H2+H3=△ t*V through distance, can obtain thus H1Value.
Processor 12 identifies the feature ultrasonic signal of cavity bottom reflection in filtered shape informationCorresponding shape information comprises: processor 12 identifies described spy according to the attenuation characteristic of described shape informationLevy the shape information that ultrasonic signal is corresponding.
As above-mentioned, when calculating after this burying depth H1, show the burying depth of described electric pole, so thatDirectly obtain this burying depth in attendant. Concrete, described in can showing by this display, buryThe degree of depth or carry out burying depth described in voice broadcast by voice device.
Known by foregoing description, technical scheme is utilized the hollow structure of electric pole described in the embodiment of the present invention,Can be by launching ultrasonic signal in the chamber to electric pole, the feature reflecting according to cavity bottom is ultrasonicThe burying depth of ripple calculated signals electric pole, measuring method is simple, and operating efficiency is high.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. for measuring a measuring method for electric pole burying depth, described electric pole has the water of chamberMud electric pole, is characterized in that, this measuring method comprises:
The primary importance place resting on the ground at described electric pole, by signal generation apparatus to described chamberInterior transmitting ultrasonic signal;
The second place place resting on the ground at described electric pole, adopts ultrasonic receiver to detect ultrasonic waveSignal;
The ultrasonic signal that described ultrasonic receiver is detected carries out signal processing, according to resultThe feature ultrasonic signal of identifying described cavity bottom reflection, calculates institute according to described feature ultrasonic signalState the burying depth of electric pole.
2. measuring method according to claim 1, is characterized in that, described described ultrasonic wave is connectThe ultrasonic signal that receipts device detects carries out signal processing, identifies described cavity bottom anti-according to resultThe feature ultrasonic signal of penetrating comprises:
The ultrasonic signal detecting according to described ultrasonic receiver obtains shape information;
Carry out filtering processing, with waveform letter corresponding to the ultrasonic wave of horizontal transmission in shape information described in filteringBreath;
In filtered shape information, identify the ripple corresponding to feature ultrasonic signal of cavity bottom reflectionShape information;
Calculate the burying depth of described electric pole according to shape information corresponding to described feature ultrasonic signal.
3. measuring method according to claim 2, is characterized in that, described super according to described featureThe burying depth that the shape information that acoustic signals is corresponding is calculated described electric pole comprises:
Obtain and detect that first described feature ultrasonic signal and described signal generation apparatus start to described chamberThe time interval between indoor transmitting ultrasonic signal;
High apart from ground apart from ground level, the described second place according to the described time interval, described primary importanceDegree and hyperacoustic spread speed are calculated described burying depth;
Wherein, two of described burying depth times of products that equal the described time interval and described spread speed subtractGo described primary importance apart from ground level, then deduct the described second place apart from ground level.
4. measuring method according to claim 2, is characterized in that, described at filtered rippleShape information corresponding to feature ultrasonic signal that identifies cavity bottom reflection in shape information comprises:
Identify according to the attenuation characteristic of described shape information the waveform letter that described feature ultrasonic signal is correspondingBreath.
5. measuring method according to claim 1, is characterized in that, also comprises: show described electricityThe burying depth of line bar.
6. measuring method according to claim 5, is characterized in that, the described electric pole of described displayingBurying depth comprise: show described burying depth or by burying depth described in voice broadcast.
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| CN201610053080.6A CN105607067A (en) | 2016-01-25 | 2016-01-25 | Measurement method for measuring burying depth of wire pole |
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| CN201610053080.6A CN105607067A (en) | 2016-01-25 | 2016-01-25 | Measurement method for measuring burying depth of wire pole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108469236A (en) * | 2018-02-11 | 2018-08-31 | 北京航空航天大学 | A kind of intelligent column buried depth probe suitable for guardrail movement inspection platform |
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