CN114593685A - Device and method for measuring distance between phase conductors of transformer substation - Google Patents
Device and method for measuring distance between phase conductors of transformer substation Download PDFInfo
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- CN114593685A CN114593685A CN202210226356.1A CN202210226356A CN114593685A CN 114593685 A CN114593685 A CN 114593685A CN 202210226356 A CN202210226356 A CN 202210226356A CN 114593685 A CN114593685 A CN 114593685A
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- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 230000016507 interphase Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention discloses a device for measuring the distance between phase-to-phase conductors of a transformer substation, which comprises two first laser ranging sensors, a rotatable second laser ranging sensor and a processor, wherein the two first laser ranging sensors are used for emitting laser to the same conductor to be measured, a set included angle is formed between the two first laser ranging sensors, the second laser ranging sensor is used for emitting laser to the other conductor to be measured, the rotating path of the second laser ranging sensor is positioned on an equidistant plane between the two first laser ranging sensors, the second laser ranging sensor is provided with an angle sensor, and the first laser ranging sensor, the second laser ranging sensor and the angle sensor are electrically connected with the processor, so that the device has the beneficial effects that: the method has the advantages of being accurate in measurement and simple to operate. The invention also provides a method for measuring the distance between the phase conductors of the transformer substation, which has the advantages of accurate measurement, convenient operation and avoidance of the risk of high-altitude operation.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a device and a method for measuring the distance between phase conductors of a transformer substation.
Background
At present, the transformer substation needs to strictly ensure the inter-phase distance of the wires in the construction process, and the inter-phase distance is insufficient, so that great hidden danger is brought to the operation of the transformer substation, and even a power system fault is caused.
Constructors rely on construction drawings to carry out construction in the construction process, but the interphase distance of the conducting wire often depends on the foundation construction precision after construction is finished, and a convenient and quick interphase distance detection device is lacked. Therefore, the above problems need to be solved.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the distance between phase conductors of a transformer substation, which solve the problem that the distance between the phase conductors in the transformer substation is difficult to measure in the prior art and have the advantages of accurate measurement and simple operation.
The invention is realized by the following technical scheme:
the utility model provides a measuring device of alternate wire distance of transformer substation, includes two first laser rangefinder sensors, rotatable second laser rangefinder sensor and treater, two first laser rangefinder sensor is used for transmitting laser to same conductor that awaits measuring on, and two the contained angle that has the settlement between the first laser rangefinder sensor, second laser rangefinder sensor is used for transmitting laser to another conductor that awaits measuring on, the rotation path of second laser rangefinder sensor is located two on the equidistance plane between the first laser rangefinder sensor, second laser rangefinder sensor is provided with angle sensor, first laser rangefinder sensor, second laser rangefinder sensor and angle sensor all with the treater electricity is connected.
The two first laser ranging sensors have set included angles, so that laser can be conveniently emitted to a wire to be measured, and the first laser ranging sensors can be quickly positioned and installed; the second laser ranging sensor is rotatable, and the rotation path of the second laser ranging sensor is positioned on an equidistant plane between the two first laser ranging sensors, so that the second laser ranging sensor always keeps the same included angle with the two first laser ranging sensors when rotating, and the second laser ranging sensor is provided with an angle sensor, so that the rotation angle of the second laser ranging sensor can be measured, the first laser ranging sensor and the second laser ranging sensor can respectively measure the distance from each to the corresponding wire to be measured, therefore, the data can be processed by a processor to obtain the specific numerical value of the included angle between the second laser ranging sensor and the first laser ranging sensor, and the reverse extension lines of the lasers emitted by the three laser ranging sensors are intersected at a point, the distance from the point to the three ranging sensors is determined, so that the measured data of the three laser ranging sensors are combined again and then pass through cosine theorem and triangle theorem The distance between the two wires to be measured can be calculated by the area formula. When the device is actually used, the measured value can be obtained through the processor only by rotating the second laser ranging sensor to a reasonable measuring position and combining the measured values of the first laser ranging sensor and the second laser ranging sensor and the distance from the intersection point of the reverse laser extension lines emitted by the three laser ranging sensors to the corresponding laser ranging sensor, so that the device has the advantage of accurate measurement; in addition, the measuring tool is not required to be used by a worker to directly measure the distance between the two wires in the measuring process, the operation is simple, time and labor are saved, and meanwhile, the risk of high-altitude operation is avoided.
Preferably, the laser ranging device further comprises an angle adjusting device, and the angle adjusting device is connected with the second laser ranging sensor.
The angle adjusting device is connected with the second laser ranging sensor, so that the angle adjusting device can be used for adjusting the rotating angle of the second laser ranging sensor, is suitable for measurement between two wires at different distances, and has better applicability.
Preferably, the angle adjusting device is located at an intersection point of reverse extension lines of the laser emitted by the second laser ranging sensor and the two first laser ranging sensors.
The angle adjusting device is positioned at the intersection point, so that the second laser ranging sensor still keeps the same included angle with the two first laser ranging sensors after rotating, and the measuring accuracy is ensured.
A method for measuring the distance between phase conductors of a transformer substation comprises the following steps:
s1, fixedly mounting the measuring device of the transformer substation phase-to-phase conductor distance under the transformer substation phase-to-phase conductor;
s2, starting the first laser ranging sensors to enable the lasers emitted by the two first laser ranging sensors to irradiate different two points on the first wire to be measured, and transmitting the measured values of the two first laser ranging sensors to the processor for recording;
s3, starting a second laser ranging sensor, firstly enabling laser emitted by the second laser ranging sensor to irradiate the first wire to be measured, enabling the irradiation point of the first wire to be positioned between the irradiation points of the two first laser ranging sensors, and then rotating an angle adjusting device to enable the laser emitted by the second laser ranging sensor to irradiate the second wire to be measured;
s4, recording the intersection point of reverse extension lines of the laser emitted by the second laser ranging sensor and the two first laser ranging sensors as a point O, and storing three distance values into a processor according to the theoretical set distance between the point O and the two first laser ranging sensors and the theoretical set distance between the point O and the second laser ranging sensor;
s5, the processor calculates the distance between the two wires.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention provides a device for measuring the distance between phase conductors of a transformer substation; when the device is actually used, the measured value can be obtained through the processor only by rotating the second laser ranging sensor to a reasonable measuring position and combining the measured values of the first laser ranging sensor and the second laser ranging sensor and the distances from the intersection point of the reverse laser extension lines emitted by the three laser ranging sensors to the corresponding laser ranging sensor, so that the device has the advantage of accurate measurement; in addition, the distance between the two wires does not need to be directly measured by a measuring tool by a worker in the measuring process, the operation is simple, time and labor are saved, and the risk of high-altitude operation is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic use diagram of a device for measuring a distance between phase conductors of a substation according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a distance calculation between two wires to be tested according to an embodiment of the present invention;
fig. 3 is another schematic diagram of calculating the distance between two wires to be tested according to an embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
100-a first laser ranging sensor, 200-a second laser ranging sensor, 300-an angle sensor, 400-an angle adjusting device, 500-a first wire to be tested and 600-a second wire to be tested.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrase "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
Examples
The embodiment of the invention provides a device for measuring the distance between phase-to-phase conductors of a transformer substation, which comprises two first laser ranging sensors 100, a rotatable second laser ranging sensor 200 and a processor, wherein the two first laser ranging sensors 100 are used for emitting laser to the same conductor to be measured, a set included angle is formed between the two first laser ranging sensors 100, the second laser ranging sensor 200 is used for emitting laser to the other conductor to be measured, the rotating path of the second laser ranging sensor 200 is positioned on an equidistant plane between the two first laser ranging sensors 100, the second laser ranging sensor 200 is provided with an angle sensor 300, and the first laser ranging sensor 100, the second laser ranging sensor 200 and the angle sensor 300 are electrically connected with the processor.
As shown in fig. 1, a set included angle is formed between the two first laser ranging sensors 100, so that two light spots which are not overlapped are formed when the two first laser ranging sensors 100 emit laser to a to-be-measured wire, and the first laser ranging sensors 100 can be positioned and installed quickly; the second laser ranging sensor 200 can rotate, and the rotation path of the second laser ranging sensor 200 is located on the equidistant plane between the two first laser ranging sensors 100, so that the included angle between the second laser ranging sensor 200 and the two first laser ranging sensors 100 is always equal when the second laser ranging sensor rotates; and the second laser ranging sensor 200 is provided with the angle sensor 300, so that the rotation angle of the second laser ranging sensor 200 can be measured by the angle sensor 300; in addition, the reverse extension lines of the laser emitted by the three laser ranging sensors intersect at a point, and the distances from the point to the three laser ranging sensors are determined (after the device is manufactured, the distances are fixed and therefore belong to known values), the first laser ranging sensor 100 and the second laser ranging sensor 200 can respectively measure the distances from the point to the corresponding wires to be measured, so that the specific value of the included angle between the second laser ranging sensor 200 and the first laser ranging sensor 100 can be obtained in the processor by combining the data (namely the rotation angle and the distances from the laser ranging sensors to the respective light points), and the distance between the two wires to be measured can be calculated by combining the data through a pre-programmed program (cosine theorem and triangle area formula). In practical use, the second laser ranging sensor 200 is only required to be rotated to a reasonable measuring position, and the measured value can be obtained through the processor by combining the measured values of the first laser ranging sensor 100 and the second laser ranging sensor 200 and the distance (the distance belongs to a theoretically known value) between each of the three laser ranging sensors and the intersection point of the emitted laser reverse extension lines, so that the laser ranging device has the advantages of convenience in use and accuracy in measurement; in addition, the distance between the two wires does not need to be directly measured by a measuring tool by a worker in the measuring process, the operation is simple, time and labor are saved, and the risk of high-altitude operation is avoided.
It should be noted that the processor may select a single chip microcomputer of the type STM32F107 or a single chip microcomputer of the type STM32F103 in the prior art; the first laser ranging sensor 100, the second laser ranging sensor 200 and the angle sensor 300 are electrically connected with the processor, so that the distance from the first laser ranging sensor 100 to the light point on the wire measured by the second laser ranging sensor 200 can be transmitted into the processor, and the angle sensor 300 transmits the rotation angle of the second laser ranging sensor 200 to the processor, so that the processor can calculate the included angle between the first laser ranging sensor 100 and the second laser ranging sensor 200 through a preset program, and then calculate the distance between the two wires by combining other measurement data according to the value of the included angle.
Preferably, the device further comprises an angle adjusting device 400, and the angle adjusting device 400 is connected with the second laser ranging sensor 200.
As shown in fig. 1, in the present embodiment, the angle adjusting device 400 is connected to the second laser ranging sensor 200, and therefore, can be used to adjust the rotation angle of the second laser ranging sensor 200, so as to be suitable for measuring two wires at different distances, and have better applicability.
Preferably, the angle adjusting device 400 is located at an intersection point of opposite extension lines of the laser emitted by the second laser ranging sensor 200 and the two first laser ranging sensors 100.
As shown in fig. 1 and 3, in the present embodiment, the angle adjusting device 400 is located at an intersection point of opposite extension lines of the laser light emitted from the second laser ranging sensor 200 and the two first laser ranging sensors 100; this nodical can make second laser rangefinder sensor 200 rotate the back still keep equal with two respective contained angles between the first laser rangefinder sensor 100 to guaranteed the measuring accuracy, and angle adjusting device 400 sets up this nodical, makes this device accomplish the back at the manufacturing, and three laser rangefinder sensor need not to measure again at the measurement process for the distance of this nodical definite value.
The embodiment of the invention also provides a method for measuring the distance between the phase conductors of the transformer substation, which comprises the following steps:
s1, fixedly mounting the measuring device of the transformer substation phase-to-phase conductor distance under the transformer substation phase-to-phase conductor;
as shown in fig. 1, the measuring device for the inter-phase conductor distance of the transformer substation is installed below the first conductor and the second conductor, and the device is preliminarily fixed, so that the laser irradiation angle of the first laser ranging sensor 100 can be conveniently adjusted subsequently.
S2, the first laser ranging sensors 100 are started, so that the laser emitted by the two first laser ranging sensors 100 irradiates different two points on the first wire 500 to be measured, and the measured values of the two first laser ranging sensors 100 are transmitted to the processor for recording;
after the measuring device for the distance between the phase-to-phase conductors of the transformer substation is initially fixed, two first laser ranging sensors 100 are sequentially started, then the installation position of the whole device is adjusted, so that the laser emitted by the two first laser ranging sensors 100 irradiates different two points on a first conductor 500 to be measured, the measured values of the two first laser ranging sensors 100 are transmitted to a processor for recording, and then the device can be fixed, so that the phenomenon that the device shakes in the measuring process is prevented, and the measuring precision is prevented from being influenced;
s3, turning on the second laser ranging sensor 200, firstly irradiating the first wire 500 to be measured with the laser emitted from the second laser ranging sensor 200, wherein the irradiation point is located between the irradiation points of the two first laser ranging sensors 100, then rotating the angle adjusting device 400, so that the second wire 600 to be measured is irradiated with the laser emitted from the second laser ranging sensor 200, and the measured value of the second laser ranging sensor 200 is transmitted to the processor for recording;
starting the second laser ranging sensor 200, adjusting the angle adjusting device 400 to make the laser of the second laser ranging sensor 200 irradiate the first wire 500 to be measured to make the irradiation point between the irradiation points of the two first laser ranging sensors 100, and transmitting the current measurement value of the second laser ranging sensor 200 to the processor for recording; since the rotation path of the second laser ranging sensor 200 is located on the equidistant plane between the two first laser ranging sensors 100, the distance between the irradiation point of the second laser ranging sensor 200 on the first wire 500 to be measured and the irradiation points of the two first laser ranging sensors 100 is equal; then, the laser emitted by the second laser ranging sensor 200 is irradiated on the second wire 600 to be measured through the rotation angle adjusting device 400, the rotation angle is measured through the angle sensor 300 and is transmitted to the processor for recording, and the measurement value of the second laser ranging sensor 200 is transmitted to the processor for recording;
s4, recording the intersection point of reverse extension lines of the laser emitted by the second laser ranging sensor 200 and the two first laser ranging sensors 100 as a point O, combining the theoretical distance between the point O and the two first laser ranging sensors 100 and the theoretical distance between the point O and the second laser ranging sensor 200, and storing three distance values into a processor;
because the included angle between the two first laser ranging sensors 100 is fixed, the distance between the point O and the two first laser ranging sensors 100 belongs to a theoretical set value after the device is installed, and the angle adjusting device 400 for adjusting the second laser ranging sensor 200 is positioned at the point O, so that the distance between the second laser ranging sensor 200 and the angle adjusting device 400 is also the theoretical set value, and the three set distance values are stored in the processor;
s5, the processor calculates the distance between the two wires.
The calculation principle is as follows: the distances from the point O to the two irradiation points of the first laser ranging sensor 100 on the first wire 500 to be measured can be obtained through the steps of S1 to S4, and the angle between the laser beams emitted by the two first laser ranging sensors 100 is known, the angle can be determined, by programming in the processor, the distance between the irradiation point of the first laser ranging sensor 100 on the first wire 500 to be measured and the irradiation point of the second laser ranging sensor 200 on the first wire 500 to be measured can be calculated, as shown in fig. 2, that is, in the right triangle OLN, the angle between the line segment OL and the line segment ON is half of the angle between the laser beams emitted from the two first laser ranging sensors 100, both line segments ON and OL are known, therefore, the length of the line segment NL, that is, the distance between the irradiation point of the first laser ranging sensor 100 on the first wire 500 to be measured and the irradiation point of the second laser ranging sensor 200 on the first wire 500 to be measured can be obtained; similarly, the distance between the point O and the irradiation point of the second laser ranging sensor 200 on the second wire 600 to be tested can be measured, and the rotation angle thereof is known by the angle sensor 300, so that the distance between the irradiation point of the second laser ranging sensor 200 on the first wire 500 to be tested and the irradiation point of the second laser ranging sensor 200 on the second wire 600 to be tested can be calculated by programming in the processor, that is, in the right triangle OPL, the line segments OP and OL are known, and the included angle between the line segments OP and OL is the rotation angle measured by the angle sensor 300, so that the length of the line segment PL can be calculated, that is, the distance between the irradiation point of the second laser ranging sensor 200 on the first wire 500 to be tested and the irradiation point of the second laser ranging sensor 200 on the second wire 600 to be tested, so that in the right triangle NPL, the line segment PL and the line segment NL are known, therefore, the length of the line segment NP can be calculated by the pythagorean theorem, that is, the distance between the irradiation point of the first laser ranging sensor 100 on the first wire 500 to be measured and the irradiation point of the second laser ranging sensor 200 on the second wire 600 to be measured; therefore, as can be seen from fig. 2 and fig. 3, when the lengths of the segments NP, MP and MN are known (MP = NP, MN = twice NL, because the rotation path of the second laser range finder sensor 200 is located on the equidistant plane between the two first laser range finder sensors 100), the processor can obtain the area of the triangular MNP according to the area formula of the triangle, and continue to use the segment MN as the base, and when the area is known, the processor can calculate the high length of the triangular MNP, that is, the distance between the first dut 500 and the second dut 600.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The device for measuring the distance between the phase-to-phase conductors of the transformer substation is characterized by comprising two first laser ranging sensors (100), a rotatable second laser ranging sensor (200) and a processor, wherein the two first laser ranging sensors (100) are used for emitting laser to the same conductor to be measured, a set included angle is formed between the two first laser ranging sensors (100), the second laser ranging sensor (200) is used for emitting laser to another wire to be measured, the rotation path of the second laser ranging sensor (200) is located on an equidistant plane between the two first laser ranging sensors (100), the second laser ranging sensor (200) is provided with an angle sensor (300), and the first laser ranging sensor (100), the second laser ranging sensor (200) and the angle sensor (300) are all electrically connected with the processor.
2. A substation phase-to-phase conductor distance measuring device according to claim 1, characterized by further comprising an angle adjusting device (400), said angle adjusting device (400) being connected to said second laser ranging sensor (200).
3. A substation phase-to-phase conductor distance measuring device according to claim 2, characterized in that the angle adjusting device (400) is located at the intersection point of the opposite extension lines of the laser light emitted by the second laser ranging sensor (200) and the two first laser ranging sensors (100).
4. A method for measuring the distance between phase conductors of a transformer substation comprises the following steps:
s1, fixedly mounting the measuring device of the transformer substation phase-to-phase conductor distance under the transformer substation phase-to-phase conductor;
s2, turning on the first laser ranging sensors (100) to make the laser emitted by the two first laser ranging sensors (100) irradiate different two points on the first lead (500) to be measured, and transmitting the measured values of the two first laser ranging sensors (100) to a processor for recording;
s3, starting a second laser ranging sensor (200), firstly irradiating laser emitted by the second laser ranging sensor (200) onto a first wire (500) to be measured, wherein the irradiation point is positioned between the irradiation points of two first laser ranging sensors (100), then rotating an angle adjusting device (400), so that the laser emitted by the second laser ranging sensor (200) is irradiated onto a second wire (600) to be measured, and the measured value of the second laser ranging sensor (200) is transmitted to a processor for recording;
s4, recording the intersection point of reverse extension lines of the laser emitted by the second laser ranging sensor (200) and the two first laser ranging sensors (100) as a point O, and storing three distance values into the processor according to the theoretical set distance between the point O and the two first laser ranging sensors (100) and the theoretical set distance between the point O and the second laser ranging sensor (200);
s5, the processor calculates the distance between the two wires.
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| CN111079258A (en) * | 2019-11-19 | 2020-04-28 | 国网电力科学研究院武汉南瑞有限责任公司 | Dynamic prediction method for electrical safety distance between transmission line conducting wire and tree |
| CN210773935U (en) * | 2019-12-13 | 2020-06-16 | 东北大学 | Mining three-dimensional laser digital measuring instrument |
| CN111426870A (en) * | 2020-05-12 | 2020-07-17 | 南方电网数字电网研究院有限公司 | Method, system and device for detecting running state of lead and computer equipment |
| CN111856488A (en) * | 2020-07-29 | 2020-10-30 | 国网上海市电力公司 | Distance measuring method and system based on shaft encoder |
| CN112161580A (en) * | 2020-09-03 | 2021-01-01 | 中联重科股份有限公司 | Method and equipment for measuring span of supporting leg |
| CN112505714A (en) * | 2020-12-22 | 2021-03-16 | 南昌大学 | Laser range finder based on double-angle sensor and range finding method |
| CN112833787A (en) * | 2021-01-07 | 2021-05-25 | 广东博智林机器人有限公司 | Repeated positioning precision measuring device and repeated positioning precision measuring method |
| CN216869467U (en) * | 2022-03-09 | 2022-07-01 | 宁夏送变电工程有限公司 | Transformer substation's wire distance measuring device |
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