CN101825666A - Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line - Google Patents
Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line Download PDFInfo
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Abstract
The invention relates to a method for measuring a safety distance between a suspension arm of a crane and a running super high voltage transmission line. The method comprises the following steps of: detecting a surrounding electric field intensity by using a detecting head arranged on the suspension arm, inputting a detection result into a comparison module and comparing the detection result with a pre-set value; using the strength of an electric field intensity signal as a start/stop signal of the operation of laser distance-measuring equipment; when the electric field intensity signal is higher than the pre-set value, scanning in a semispherical region to measure a distance by using the laser distance-measuring equipment; when the electric field intensity signal is lower than the pre-set value, stopping a distance detection module to reduce the power consumption of the entire detecting head; and arranging a data acquiring and displaying device in an operation room of the crane and transmitting the detection results of a high voltage electric field intensity detection module and the distance detection module to the data acquiring and displaying device in a radio signal transmitting mode so as to display, alarm or control externally. The invention also provides a corresponding safety distance measuring device which can adapt to electric transmission and transformation lines with different voltage levels and different working angles of the suspension arm and can realize low-consumption operation.
Description
Technical field
Belong to fields of measurement, relate in particular to a kind of be used to measure between suspension arm of crane and the charged ultra-high-tension power transmission line safe distance detection method and device thereof.
Background technology
The extra high voltage network of 500 kilovolts of Shanghai supergrids and 220 kilovolts relates to all districts, full Shanghai on the geographic position.
The Shanghai supergrid is being undertaken the important task that area, Shanghai 95% above electric weight is carried, and is " sustainer " that ensures the Shanghai Electric Power supply.
The safe operation of extra high voltage network not only is related to safe and reliable electricity consumptions such as Shanghai City government, enterprise, commerce, citizen, more is related to the image of Shanghai international metropolis and the stable and development of society.
Analyze the circuit of extra high voltage network " the outer damage " accident for many years, wherein crane " short " is No.1 " killer ".
So-called crane " short " accident, be meant that suspension arm of crane touches the accident that causes at fortune (promptly being in the charging operation state) high voltage transmission line lead, in these accidents, " safe distance " deficiency of arm and UHV (ultra-high voltage) lead is the main cause that circuit " the outer damage " accident takes place in the crane construction.
As seen, at lifting operations such as a large amount of municipal works, building operation, ornamental trees and shrubs, when under closing on extra high voltage network, carrying out construction operation, because the crane operation personnel can not effectively control the safe distance between suspension arm of crane and the high voltage transmission line lead, suspension arm of crane very easily takes place to be touched at fortune (promptly being in the charging operation state) high voltage transmission line lead, thereby cause extra high voltage network tripping operation, device damage, personnel to get an electric shock even large area blackout, cause great harm for the safe operation and the personal safety of electric system.How preventing the generation of such accident, is the key subjects that we face.
Existing high-tension line distance measuring equipment, the principle that adopts electric field intensity to detect is carried out work more, has obtained certain strick precaution effect.
But find in actual use, at the transmission line of electricity of different electric pressures, under the situation of same distance, its detected electric field intensity difference, vice versa.So, the transmission line of electricity that electric field intensity warning reference value of simple setting is deacclimatized different electric pressures is difficult to satisfy the real work needs, and carry a plurality of high-tension line distance measuring equipments that are applicable to different electric pressures simultaneously, purchase with maintenance cost higher on the one hand, on the other hand, in use mix up easily, do not have due strick precaution/warning effect on the contrary.
In addition, also have and adopt ultrasonic range finder to find range, but because transmission line wire is thinner, the range finding close echo very a little less than, during actual the use sensitivity low, the range finding weak effect can't satisfy the request for utilization of work.
Existing laser range finder, though distance accuracy and sensitivity are preferable, but because laser probe sends is Ray Of Light, it is same because transmission line wire is thinner, there is the aiming difficulty in actual use, aiming/measuring process is longer, can not adapt to different arm operating angles, inconvenience such as can't find range automatically.
Summary of the invention
Technical matters to be solved by this invention provide a kind of measure suspension arm of crane and ultra high-tension transmission line safe distance in service method, it has made up electric field intensity and has detected and two kinds of detection modes of laser ranging, come the On/Off laser range finder according to detected electric field intensity, can adapt to the power transmission and transformation line of different electric pressures and different arm operating angles, can realize low power operation again, can carry out automatically the hemisphere face zone laser scanning and ranging, send alerting signal, and detecting head integral installation/dismounting is convenient, is convenient to put into operation and safeguards/overhaul.
Technical scheme of the present invention is: provide a kind of measure suspension arm of crane and ultra high-tension transmission line safe distance in service method, comprise that electric field intensity detects and laser ranging, it is characterized in that:
A, a detecting head is set on suspension arm of crane, on ground or the crane operation chamber one data aggregation display device is set; The distance detecting module, safe distance comparison module and the wireless signal transmitting module that the high-voltage electric field intensity detection module that is made of induction electrode and electric field intensity detecting unit are set in detecting head, constitute by laser ranging unit, range finding probe and range finding probe wobble drive unit; Wireless signal receiver module, data processing module, LED display module and acousto-optic alarm module are set in the data aggregation display device;
B, high-voltage electric field intensity detection module detect the electric field intensity around the suspension arm of crane of detecting head place, and testing result is sent into the safe distance comparison module;
C, in the safe distance comparison module, detected electric field intensity signal and default definite value are compared;
D, with the power of the detected electric field intensity signal of high-voltage electric field intensity detection module, as " the startup "/"signal for " stop " of laser ranging system work;
E, when electric field intensity signal is higher than default definite value, safe distance comparison module output " startups " signal, start working in laser ranging unit, range finding probe and the range finding wobble drive unit of popping one's head in;
F, range finding probe wobble drive unit drives range finding probe are swung, form a hemispherical range finding sweep interval, the range finding probe sends the laser ranging light beam, and receives the distance measuring light beam that returns, and the laser ranging unit is according to the distance measuring light beam output range finding result who sends and return;
G, when electric field intensity signal is lower than default definite value, safe distance comparison module output "signal for " stop ", laser ranging unit, range finding probe and range finding probe wobble drive unit quit work, to reduce the electrical source consumption of whole detecting head;
The testing result of H, described high-voltage electric field intensity detection module and/or distance detecting module sends to the data aggregation display device in the mode of transmission of wireless signals, for the usefulness of demonstration, warning or external control.
Concrete, in described detecting head bottom magnet is set, make between the hardware of detecting head and suspension arm of crane the formation magnetic adsorption type fixedly connected mode.
Described range finding probe wobble drive unit drives range finding probe is done the swing on X-axis and/or the Y direction, forms a hemispherical range finding sweep interval.
The corresponding coupling work of described wireless signal transmitting module and wireless signal receiver module forms the transmission of wireless signals passage between detecting head and the data aggregation display device.
Further, in described detecting head, electric battery is set, for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module provide power supply.
In described data aggregation display device cigar lighter vehicle power attachment plug in the car is set, for the data aggregation display device provides power supply.
The present invention also provide a kind of measure suspension arm of crane and ultra high-tension transmission line safe distance in service device, comprise electric field intensity detecting unit and laser ranging unit, it is characterized in that: a detecting head is set on suspension arm of crane; On ground or the crane operation chamber one data aggregation display device is set; In described detecting head bottom magnet is set, constitutes the magnetic adsorption type syndeton between detecting head and the suspension arm of crane; The distance detecting module, safe distance comparison module and the wireless signal transmitting module that the high-voltage electric field intensity detection module that is made of induction electrode and electric field intensity detecting unit are set in detecting head, constitute by laser ranging unit, range finding probe and range finding probe wobble drive unit; Wireless signal receiver module, data processing module, LED display module and acousto-optic alarm module are set in the data aggregation display device; Between described detecting head and data aggregation display device, the wireless data signal transmission channel is set.
Above-mentioned induction electrode is connected with the signal input part of electric field intensity detecting unit, the signal output part of electric field intensity detecting unit is connected with the signal input part of safe distance comparison module, the signal output part of range finding probe is connected with the signal input part of laser ranging unit, the signal output part of safe distance comparison module is connected with the control input end of laser ranging unit, the signal output part of electric field intensity detecting unit, the signal output part of the signal output part of laser ranging unit and safe distance comparison module is connected respectively successively with the signal input part of wireless signal transmitting module; Wireless signal is connected between wireless signal transmitting module and the wireless signal receiver module; The signal output part of wireless signal receiver module is connected with the signal input part of data processing module, and the signal output part of data processing module is connected respectively successively with the signal input part of LED display module and acousto-optic alarm module.
Its described electric field intensity detecting unit is conventional induction type electric field intensity detecting circuit; Described laser ranging unit is the conventional laser stadimeter; Described range finding probe wobble drive unit comprises range finding probe rotation axis, with the affixed X-Y axle sway in both directions shelf structure of range finding probe with drive the drive motor of wabbler mechanism; Described safe distance comparison module comprises amplification and rectification circuit, be used for the digital comparator that detected value and setting value are compared and be used to control laser ranging unit and range finding probe wobble drive cell operation open/stop control circuit; Described data processing module is the singlechip CPU circuit; Described LED display module is that 2 LED drive and display circuit; Described sound and light alarm module is conventional sound/optical alarm circuit.
Further, electric battery is set and provides power supply in described detecting head for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module.
In described data aggregation display device cigar lighter vehicle power attachment plug in the automobile car is set, for the data aggregation display device provides power supply.
Compared with the prior art, advantage of the present invention is:
1. adopt electric field intensity to detect and the laser ranging dual mode, with the intensity of electric field intensity detection signal startup/stop signal as laser ranging system work, can adapt to the power transmission and transformation line of different electric pressures, and realize low power operation, to adapt to the power supply mode of battery;
2. allow laser ranging probe adopt X-Y axle sway in both directions mechanism to become the hemisphere face scanning probe, can adapt to the arm operating angle of different angles, can carry out laser ranging automatically, make the reliability of monitoring improve greatly;
3. whole detecting head adopts the attached fixed sturcture/mode of magnetic, and integral installation/dismountings makes things convenient for, and is convenient to put into operation and safeguards/overhaul;
4. each module adopts standardized designs, can conveniently expand and other system interconnection, and expense is cheap, from the collecting data processing, communicate by letter of electric field and ranging information, warning self-organizing system, integrated automation degree height.
5. adopt wireless signal to connect between detecting head and the data aggregation display device, saved the line of redundant and complicated;
6. device is whole not only has good insulation performance and also has extremely strong anti-electromagnetic interference capability, security of operation, reliable, accuracy is high.
Description of drawings
Fig. 1 be the present invention measure safe distance the method schematic block diagram;
Fig. 2 is the structural representation of the present invention's detecting head;
Fig. 3 is a range finding probe wobble drive cellular construction synoptic diagram;
Fig. 4 is that the whole electric system of the present invention's measurement mechanism constitutes synoptic diagram.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Among Fig. 1, the idiographic flow of this method comprises:
A, a detecting head is set on suspension arm of crane, on ground or the crane operation chamber one data aggregation display device is set; The distance detecting module, safe distance comparison module and the wireless signal transmitting module that the high-voltage electric field intensity detection module that is made of induction electrode and electric field intensity detecting unit are set in detecting head, constitute by laser ranging unit, range finding probe and range finding probe wobble drive unit; Wireless signal receiver module, data processing module, LED display module and acousto-optic alarm module are set in the data aggregation display device;
B, high-voltage electric field intensity detection module detect the electric field intensity around the suspension arm of crane of detecting head place, and testing result is sent into the safe distance comparison module;
C, in the safe distance comparison module, detected electric field intensity signal and default definite value are compared;
D, with the power of the detected electric field intensity signal of high-voltage electric field intensity detection module, as " the startup "/"signal for " stop " of laser ranging system work;
E, when electric field intensity signal is higher than default definite value, safe distance comparison module output " startups " signal, start working in laser ranging unit, range finding probe and the range finding wobble drive unit of popping one's head in;
F, range finding probe wobble drive unit drives range finding probe are swung, form a hemispherical range finding sweep interval, the range finding probe sends the laser ranging light beam, and receives the distance measuring light beam that returns, and the laser ranging unit is according to the distance measuring light beam output range finding result who sends and return;
G, when electric field intensity signal is lower than default definite value, safe distance comparison module output "signal for " stop ", laser ranging unit, range finding probe and range finding probe wobble drive unit quit work, to reduce the electrical source consumption of whole detecting head;
The testing result of H, described high-voltage electric field intensity detection module and/or distance detecting module sends to the data aggregation display device in the mode of transmission of wireless signals, for the usefulness of demonstration, warning or external control.
In addition, magnet is set, makes between the hardware of detecting head and suspension arm of crane the formation magnetic adsorption type fixedly connected mode in detecting head bottom.
Concrete, range finding probe wobble drive unit drives range finding probe is done the swing on X-axis and/or the Y direction, forms a hemispherical range finding sweep interval.
The corresponding coupling work of described wireless signal transmitting module and wireless signal receiver module forms the transmission of wireless signals passage between detecting head and the data aggregation display device.
Further, electric battery is set in detecting head, for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module provide power supply.
In the data aggregation display device cigar lighter vehicle power attachment plug in the car is set, for the data aggregation display device provides power supply.
Among Fig. 2, the technical program is provided with magnet 2 in the bottom of detecting head 1, makes between detecting head and the suspension arm of crane 3 to constitute magnetic adsorption type and be connected and fixed structure; The distance detecting module, safe distance comparison module 9 and the wireless signal transmitting module 10 that the high-voltage electric field intensity detection module that is made of induction electrode 4 and electric field intensity detecting unit 5 are set in detecting head, constitute by laser ranging unit 6, range finding probe 7 and range finding probe wobble drive unit 8.
Among Fig. 3, range finding probe wobble drive unit comprises range finding probe rotation axis 8-1, with the affixed X-Y axle sway in both directions shelf structure 8-2 of range finding probe with drive the drive motor 8-3 and the 8-4 of wabbler mechanism.
The effect of X-Y axle sway in both directions mechanism is to make laser ranging probe do corresponding swing along X coordinate axis and/or Y coordinate axis, used " The Cloud Terrace " of its effect and the overall view monitoring camera of traffic system be identical/and similar.
When real work, two drive motor are pass on, and drive X-Y axle sway in both directions mechanism kinematic, drive laser ranging probe and realize the scanning of hemisphere face regionally detecting, reach the purpose of automatic range, adaptation suspension arm of crane different operating angle.
Succinct for drawing, this not shown its each detailed modular construction, when those skilled in the art implements in reality, can be with reference to the related content among Chinese patent literature CN 99125627.1 " camera sweep expansion head ", CN95116433.3 " three-axle instantaneous-locking double-semispherical joint head " or the CN 02265491.7 " spherical camera rotary head ", concrete structure relation and course of action are not described in detail in this.
Among Fig. 4, the technical program is provided with the high-voltage electric field intensity detection modules A 1 that is made of induction electrode and electric field intensity detecting unit, is made of laser ranging unit, range finding probe and range finding probe wobble drive unit in detecting head A distance detecting modules A 2, safe distance comparison module A3 and wireless signal transmitting module A4; Wireless signal receiver module B1, data processing module B2, LED display module B3 and acousto-optic alarm module B4 are set in data aggregation display device B; Between detecting head and data aggregation display device, wireless data signal transmission channel C is set.
Wherein, induction electrode is connected with the signal input part of electric field intensity detecting unit, the signal output part of electric field intensity detecting unit is connected with the signal input part of safe distance comparison module, the signal output part of range finding probe is connected with the signal input part of laser ranging unit, the signal output part of safe distance comparison module is connected with the control input end of laser ranging unit, the signal output part of electric field intensity detecting unit, the signal output part of the signal output part of laser ranging unit and safe distance comparison module is connected respectively successively with the signal input part of wireless signal transmitting module; Wireless signal is connected between wireless signal transmitting module and the wireless signal receiver module, the signal output part of wireless signal receiver module is connected with the signal input part of data processing module, and the signal output part of data processing module is connected respectively successively with the signal input part of LED display module and acousto-optic alarm module.
As seen from the figure, in order to control external device (ED) (such as the electrical source of power of crane or the control device of suspension arm of crane etc.) a driving output module (with dashed lines square frame B5 represents among the figure) can be set fully again at the signal output part of wireless signal receiver module, be used for the corresponding externally driving/control signal of output, further improve the processing safety of crane.
Herein, the electric field intensity detecting unit adopts conventional induction type electric field intensity detecting circuit to get final product.
The laser ranging unit is conventional laser range finder.
The safe distance comparison module comprise be used for the output signal of induction type electric field intensity detecting circuit carried out pretreated amplification and rectification circuit, is used for the digital comparator that actual detected value and default definite value are compared and is used to control the laser ranging unit and range finding probe wobble drive cell operation open/stop control circuit.
When the output signal of induction type electric field intensity detecting circuit during greater than default definite value, digital comparator is by opening/stop the control signal of " starting working " in control circuit output laser ranging unit and range finding probe wobble drive unit, otherwise, if the output signal of induction type electric field intensity detecting circuit is less than default definite value, open/stop the control signal that control circuit output laser ranging unit and range finding probe wobble drive unit " quit work ", can avoid like this that laser ranging unit and range finding probe wobble drive unit are in " work " unnecessary electrical source consumption that state brought when suspension arm of crane is far away apart from charged transmission line of electricity distance, help prolonging the working time and the serviceable life of battery in the detecting head, realize the operational effect of " low-power consumption ".
Data processing module adopts conventional singlechip CPU data processing circuit to get final product.
The LED display module adopts 2 LED to drive and display circuit can show decimeter grade spacing distance data.
The sound and light alarm module is conventional sound/optical alarm circuit.
In addition, the electric battery (not shown) is set and provides power supply in detecting head for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module.
In the data aggregation display device cigar lighter vehicle power attachment plug (not shown) in the car is set, for the data aggregation display device provides power supply.
Owing to aforesaid induction type electric field intensity detecting circuit, laser range finder, digital comparator, open/stop control circuit, data processing cpu circuit, 2 LED drivings and display circuit and sound/optical alarm circuit is prior art, those skilled in the art, after understanding and grasping the innovation intention and design of the technical program, need not through creative work, can realize the technique effect of the technical program, so concrete element formation and annexation each other for the above-mentioned functions circuit are not described in detail in this.
In the actual use, the test of the operational factor of this device is as follows:
1, minimum measuring distance is 2 meters; Maximum measuring distance: 8.5 meters; Take measurement of an angle: 〉=180 °;
2, line voltage distribution and arm security alarm distance:
Electric pressure (kV) 10～35 110 220 50
Alarm distance (m) 3 ± 0.1 4.5 ± 0.2 6 ± 0.3 8 ± 0.5
3, distance accuracy: 〉=5%
4, radio communication coverage :≤30 meters
5, communication interface: 433MHz
6, alarm sound: clear listening in 2 meters, gap audio;
7, warning light: high-visible in 2 meters, the gap light efficiency;
8, pick-up unit operating voltage: DC 9V ± 2V
9, receiving terminal operating voltage: DC 12V ± 2V
10, be suitable for the detection voltage range: AC 10kV～500kV
Because the detecting head of the technical program adopts the attached fixed sturcture/mode of magnetic, integral installation/dismounting is convenient, and its circuit part adopts and detects electric field intensity earlier, when near the electric field intensity the detecting head position is higher or lower than setting value, start/stop the work of laser ranging module and the swing of laser ranging probe, can adapt to the power transmission and transformation line of different electric pressures, and realize low power operation; Simultaneously, laser ranging probe is adopted swing hemisphere face scanning probe, can adapt to the arm operating angle of different angles, can carry out laser ranging automatically, make the reliability of safe distance monitoring improve greatly; Between detecting head and data aggregation display device, adopt the wireless signal connected mode, the signal connection lead/signal cable that has saved redundant and complicated and be difficult to fix; Each module adopts standardized designs, can conveniently expand and other system interconnection integrated automation degree height; Device is whole not only to have good insulation performance and also has extremely strong anti-electromagnetic interference capability, security of operation, reliable, accuracy is high.
The present invention can be widely used in the construction field that carries out lifting operation under the extra high voltage network closing on.
Claims (10)
- One kind measure suspension arm of crane and ultra high-tension transmission line safe distance in service method, comprise that electric field intensity detects and laser ranging, it is characterized in that:A, a detecting head is set on suspension arm of crane, on ground or the crane operation chamber one data aggregation display device is set; The distance detecting module, safe distance comparison module and the wireless signal transmitting module that the high-voltage electric field intensity detection module that is made of induction electrode and electric field intensity detecting unit are set in detecting head, constitute by laser ranging unit, range finding probe and range finding probe wobble drive unit; Wireless signal receiver module, data processing module, LED display module and acousto-optic alarm module are set in the data aggregation display device;B, high-voltage electric field intensity detection module detect the electric field intensity around the suspension arm of crane of detecting head place, and testing result is sent into the safe distance comparison module;C, in the safe distance comparison module, detected electric field intensity signal and default definite value are compared;D, with the power of the detected electric field intensity signal of high-voltage electric field intensity detection module, as " the startup "/"signal for " stop " of laser ranging system work;E, when electric field intensity signal is higher than default definite value, safe distance comparison module output " startups " signal, start working in laser ranging unit, range finding probe and the range finding wobble drive unit of popping one's head in;F, range finding probe wobble drive unit drives range finding probe are swung, form a hemispherical range finding sweep interval, the range finding probe sends the laser ranging light beam, and receives the distance measuring light beam that returns, and the laser ranging unit is according to the distance measuring light beam output range finding result who sends and return;G, when electric field intensity signal is lower than default definite value, safe distance comparison module output "signal for " stop ", laser ranging unit, range finding probe and range finding probe wobble drive unit quit work, to reduce the electrical source consumption of whole detecting head;The testing result of H, described high-voltage electric field intensity detection module and/or distance detecting module sends to the data aggregation display device in the mode of transmission of wireless signals, for the usefulness of demonstration, warning or external control.
- According to described measurement suspension arm of crane of claim 1 and ultra high-tension transmission line safe distance in service method, it is characterized in that magnet being set, make between the hardware of detecting head and suspension arm of crane the formation magnetic adsorption type fixedly connected mode in described detecting head bottom.
- According to described measurement suspension arm of crane of claim 1 and ultra high-tension transmission line safe distance in service method, it is characterized in that described range finding probe wobble drive unit drives range finding probe, do the swing on X-axis and/or the Y direction, form a hemispherical range finding sweep interval.
- According to described measurement suspension arm of crane of claim 1 and ultra high-tension transmission line safe distance in service method, it is characterized in that the corresponding coupling work of described wireless signal transmitting module and wireless signal receiver module, form the transmission of wireless signals passage between detecting head and the data aggregation display device.
- According to described measurement suspension arm of crane of claim 1 and ultra high-tension transmission line safe distance in service method, it is characterized in that in described detecting head, electric battery being set, for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module provide power supply; In described data aggregation display device cigar lighter vehicle power attachment plug in the car is set, for the data aggregation display device provides power supply.
- One kind measure suspension arm of crane and ultra high-tension transmission line safe distance in service device, comprise electric field intensity detecting unit and laser ranging unit, it is characterized in that:One detecting head is set on suspension arm of crane; On ground or the crane operation chamber one data aggregation display device is set; In described detecting head bottom magnet is set, constitutes the magnetic adsorption type syndeton between detecting head and the suspension arm of crane; The distance detecting module, safe distance comparison module and the wireless signal transmitting module that the high-voltage electric field intensity detection module that is made of induction electrode and electric field intensity detecting unit are set in detecting head, constitute by laser ranging unit, range finding probe and range finding probe wobble drive unit; Wireless signal receiver module, data processing module, LED display module and acousto-optic alarm module are set in the data aggregation display device; Between described detecting head and data aggregation display device, the wireless data signal transmission channel is set.
- According to described measurement suspension arm of crane of claim 6 and ultra high-tension transmission line safe distance in service device, it is characterized in that described induction electrode is connected with the signal input part of electric field intensity detecting unit, the signal output part of electric field intensity detecting unit is connected with the signal input part of safe distance comparison module, the signal output part of range finding probe is connected with the signal input part of laser ranging unit, the signal output part of safe distance comparison module is connected with the control input end of laser ranging unit, the signal output part of electric field intensity detecting unit, the signal output part of the signal output part of laser ranging unit and safe distance comparison module is connected respectively successively with the signal input part of wireless signal transmitting module; Wireless signal is connected between wireless signal transmitting module and the wireless signal receiver module; The signal output part of wireless signal receiver module is connected with the signal input part of data processing module, and the signal output part of data processing module is connected respectively successively with the signal input part of LED display module and acousto-optic alarm module.
- According to described measurement suspension arm of crane of claim 6 and ultra high-tension transmission line safe distance in service device, it is characterized in that described electric field intensity detecting unit is conventional induction type electric field intensity detecting circuit; Described laser ranging unit is the conventional laser stadimeter; Described range finding probe wobble drive unit comprises range finding probe rotation axis, with the affixed X-Y axle sway in both directions shelf structure of range finding probe with drive the drive motor of wabbler mechanism; Described safe distance comparison module comprises amplification and rectification circuit, be used for the digital comparator that detected value and setting value are compared and be used to control laser ranging unit and range finding probe wobble drive cell operation open/stop control circuit; Described data processing module is the singlechip CPU circuit; Described LED display module is that 2 LED drive and display circuit; Described sound and light alarm module is conventional sound/optical alarm circuit.
- According to described measurement suspension arm of crane of claim 6 and ultra high-tension transmission line safe distance in service device, it is characterized in that being provided with in described detecting head electric battery provides power supply for high-voltage electric field intensity detection module, distance detecting module, safe distance comparison module and wireless signal transmitting module.
- According to described measurement suspension arm of crane of claim 6 and ultra high-tension transmission line safe distance in service device, it is characterized in that cigar lighter vehicle power attachment plug in the automobile car being set, for the data aggregation display device provides power supply in described data aggregation display device.
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| CN 201010172272 CN101825666B (en) | 2010-05-12 | 2010-05-12 | Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line |
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| CN 201010172272 CN101825666B (en) | 2010-05-12 | 2010-05-12 | Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line |
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