CN112180453A - Distribution network overhead line detection system - Google Patents
Distribution network overhead line detection system Download PDFInfo
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- CN112180453A CN112180453A CN202011017409.6A CN202011017409A CN112180453A CN 112180453 A CN112180453 A CN 112180453A CN 202011017409 A CN202011017409 A CN 202011017409A CN 112180453 A CN112180453 A CN 112180453A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides a distribution network overhead line detection system, which comprises: the device comprises a signal transmitting module, a signal receiving module, a signal processing module, a wireless transmission module and an alarm display module; the detection signal sent by the signal transmitting module covers a distribution network overhead line between two adjacent towers; the signal receiving module is used for receiving the detection signal sent by the signal transmitting module; the signal processing module is electrically connected with the signal receiving module and the wireless transmission module, and is used for detecting the signal intensity of the detection signal received by the signal receiving module and the duration time of the signal intensity, and sending an alarm signal to the wireless transmission module when the duration time of the signal intensity smaller than the preset intensity exceeds the preset time; the wireless transmission module is used for transmitting the alarm signal to the alarm display module; and the alarm display module sends an alarm prompt to the staff after receiving the alarm signal. The detection system provided by the invention can enable workers to know whether the overhead line of the distribution network is invaded by foreign objects or not without manual inspection.
Description
Technical Field
The invention relates to the field of electric power, in particular to a distribution network overhead line detection system.
Background
In recent years, with the increasing development of economy, the construction of electric power is increasing. In order to meet the requirements of residential power consumption capacity and power consumption quality, a large number of power distribution projects are developed at one time, and accordingly, increasingly dense distribution network lines are formed.
The distribution network line goes deep into residential areas, the erection environment is complex, more trees and cash crops are often stored nearby, when the trees and cash crops grow to reach a certain height, the trees and the cash crops can be forced to be close to or even contact the distribution network line, and the potential safety hazard is greatly brought to the operation of the distribution network line.
At present, the potential safety hazards can be found only through manpower, time and labor are wasted, and particularly, under severe weather conditions such as high temperature, high humidity and the like, operation and maintenance personnel can not be waited for, so that great workload and pressure are increased. Meanwhile, the method is limited by factors such as experience of line patrol personnel and mental states, and the risk that the hidden danger is left over is not eliminated.
Disclosure of Invention
The embodiment of the invention provides a distribution network overhead line detection system, which can enable workers to know whether a distribution network overhead line is invaded by foreign objects without manual inspection, so that the working efficiency of the workers is improved.
The embodiment of the invention provides a distribution network overhead line detection system, which comprises: the device comprises a signal transmitting module, a signal receiving module, a signal processing module, a wireless transmission module and an alarm display module; the signal transmitting module and the signal receiving module are respectively arranged on adjacent towers, and a detection signal sent by the signal transmitting module covers a distribution network overhead line between the two adjacent towers; the signal receiving module is used for receiving the detection signal sent by the signal transmitting module; the signal processing module is electrically connected with the signal receiving module and the wireless transmission module, and is used for detecting the signal intensity of the detection signal received by the signal receiving module and the duration of the signal intensity, and sending an alarm signal to the wireless transmission module when the duration of the signal intensity smaller than the preset intensity exceeds the preset time; the wireless transmission module is used for transmitting the alarm signal to the alarm display module; and the alarm display module sends an alarm prompt to the staff after receiving the alarm signal.
Optionally, the area of the signal receiving end surface of the signal receiving module is not smaller than the area of the signal transmitting end surface of the signal transmitting module.
Optionally, a connection line between a geometric center of the signal transmitting end surface of the signal transmitting module and a geometric center of the signal receiving end surface of the signal receiving module is parallel to the horizontal line, and a shape of the signal receiving end surface of the signal receiving module is the same as a shape of the signal transmitting end surface of the signal transmitting module.
Optionally, the shapes of the signal transmitting end surface of the signal transmitting module and the signal receiving end surface of the signal receiving module include a circle or a regular polygon.
Optionally, the signal transmitting module includes an infrared transmitter; the signal receiving module comprises an infrared receiver.
Optionally, the distribution network overhead line detection system provided in the embodiment of the present invention further includes a positioning module, where the positioning module is configured to determine positioning information of a tower; the positioning module is electrically connected with the wireless transmission module, and the wireless transmission module is also used for sending the positioning information to the alarm display module.
Optionally, the system for detecting an overhead line of a distribution network provided in the embodiment of the present invention further includes: the power module is electrically connected with the signal transmitting module, the signal receiving module, the signal processing module, the wireless transmission module and the positioning module and used for supplying power to the signal transmitting module, the signal receiving module, the signal processing module, the wireless transmission module and the positioning module.
Optionally, the signal processing module, the wireless transmission module and the power module are installed in a power distribution cabinet near a distribution network overhead line or a separately arranged terminal box.
Optionally, the alarm display module includes a display, and the display is used for displaying positioning information and an alarm signal of the tower.
Optionally, the alarm display module further comprises an alarm lamp, and the alarm display module is further configured to start the alarm lamp after receiving the alarm signal.
The signal processing module in the distribution network overhead line detection system provided by the embodiment of the invention is used for detecting the strength and the duration of the detection signal sent by the signal receiving module receiving signal sending module, comparing the strength of the detection signal with the preset strength, when the strength of the detection signal is smaller than the preset strength and the duration is longer than the preset time, the signal processing module sends an alarm signal to the wireless transmission module, the wireless transmission module sends the alarm signal to the alarm display module, the alarm display module sends an alarm prompt after receiving the alarm signal, and a worker can know that the distribution network overhead line is invaded without manual inspection, so that the working efficiency of the worker is improved.
Drawings
Fig. 1 is a schematic structural diagram of a distribution network overhead line detection system according to an embodiment of the present invention;
fig. 2 is an installation schematic diagram of a distribution network overhead line detection system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another distribution network overhead line detection system according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of another distribution network overhead line detection system according to a second embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Example one
The invention provides a distribution network overhead line detection system, fig. 1 is a schematic structural diagram of a distribution network overhead line detection system provided by an embodiment of the invention, and referring to fig. 1, the distribution network overhead line detection system comprises: the system comprises a signal transmitting module 110, a signal receiving module 120, a signal processing module 130, a wireless transmission module 140 and an alarm display module 150; the signal transmitting module 110 and the signal receiving module 120 are respectively installed on adjacent towers, and a detection signal sent by the signal transmitting module 110 covers a distribution network overhead line between the two adjacent towers; the signal receiving module 120 is configured to receive the detection signal sent by the signal transmitting module 110; the signal processing module 130 is electrically connected to the signal receiving module 120 and the wireless transmission module 140, and is configured to detect the signal strength of the detection signal received by the signal receiving module 120 and the duration of the signal strength, and send an alarm signal to the wireless transmission module 140 when the duration of the signal strength less than the preset strength exceeds the preset time; the wireless transmission module 140 is used for transmitting the alarm signal to the alarm display module 150; the alarm display module 150 sends an alarm prompt to the staff after receiving the alarm signal.
In the embodiment of the present invention, the strength at which the signal receiving module 120 can completely receive the signal sent by the signal transmitting module 110 is recorded as the preset strength, when a blocking object appears between the overhead lines of the distribution network, the strength received by the signal receiving module 120 will be smaller than the preset strength, for example, the blocking object may be a tree, a sand stone, a bird or the like, when a tree near a tower grows between the overhead lines of the distribution network, the strength of the detection signal received by the signal receiving module 120 will be longer than the preset strength, however, when a sand stone, a bird or the like passes between the overhead lines of the distribution network, the strength of the detection signal received by the signal receiving module 120 will be shorter than the preset strength only in a short time, and a problem to be solved in the embodiment of the present invention is to detect that a foreign object invades into the. Therefore, a preset time is required to be set to eliminate the interference of foreign objects such as sand and birds to the detection system, for example, the preset time is set to T, T is 10s, and the duration is T, when the signal processing module 130 detects that the intensity of the detection signal is less than the preset intensity, and the duration T of the detection signal is 20s, T > T, that is, the duration of the detection signal is greater than the preset time, at this time, the signal processing module 130 sends an alarm signal to the wireless transmission module 140, the wireless transmission module 140 sends an alarm signal to the alarm display module 150, and after receiving the alarm signal, the worker can know that the foreign objects intrude into the overhead line of the distribution network for a long time. The preset time T is set to 10s in the present embodiment, and in practical applications, T may be set to 5s, 20s, 25s, or the like according to practical situations. In addition, each tower has a corresponding number, and the alarm signal comprises the number of the shielded tower. Therefore, the staff can know the number of the tower invaded by the foreign object after receiving the alarm signal, and can know the position of the tower invaded by the foreign object according to the number of the tower.
The signal processing module 130 in the distribution network overhead line detection system provided by this embodiment is configured to detect the strength and duration of the detection signal sent by the signal transmitting module 110 received by the signal receiving module 120, compare the strength of the detection signal with the preset strength, when the strength of the detection signal is smaller than the preset strength and the duration is greater than the preset time, the signal processing module 130 sends an alarm signal to the wireless transmission module 140, the wireless transmission module 140 sends the alarm signal to the alarm display module 150, the alarm display module 150 sends an alarm prompt after receiving the alarm signal, and a worker can know whether the overhead line is invaded without manual investigation, so that the work efficiency of the worker is improved.
Optionally, fig. 2 is a schematic installation diagram of a distribution network overhead line detection system according to an embodiment of the present invention, and referring to fig. 2, an area of a signal receiving end surface of a signal receiving module is not smaller than an area of a signal transmitting end surface of a signal transmitting module.
Fig. 2 exemplarily shows that the area of the signal receiving end surface of the signal receiving module is equal to the area of the signal transmitting end surface of the signal transmitting module. The area of the signal receiving end face of the signal receiving module can also be larger than that of the signal transmitting end face of the signal transmitting module, so that the signal receiving module is convenient to install.
Optionally, with reference to fig. 2, a connection line between the geometric center of the signal transmitting end surface of the signal transmitting module and the geometric center of the signal receiving end surface of the signal receiving module is parallel to the horizontal line, and the shape of the signal receiving end surface of the signal receiving module is the same as the shape of the signal transmitting end surface of the signal transmitting module.
Specifically, the connecting line of the geometric center of the signal transmitting end face of the signal transmitting module and the geometric center of the signal receiving end face of the signal receiving module is parallel to the horizontal line, so that the situation that the signal receiving module cannot completely receive the detection signal due to the fact that the signal transmitting end face of the signal transmitting module and the signal receiving end face of the signal receiving module are staggered to cause false alarm of the alarm signal can be avoided.
In addition, when the shape of the signal receiving end surface of the signal receiving module is different from the shape of the signal transmitting end surface of the signal transmitting module, for example, the shape of the signal transmitting end surface of the signal transmitting module is set to be circular, and the shape of the signal receiving end surface of the signal receiving module is set to be square, in order to enable the signal receiving module to completely receive the detection information sent by the signal transmitting module, the receiving end surface of the signal receiving module needs to be designed with a larger area to completely receive the detection signal, and such design increases the volume and the manufacturing cost of the signal receiving module. The size of the signal receiving module can be reduced and the manufacturing cost of the signal receiving module can be saved by setting the shape of the signal transmitting end face of the signal transmitting module to be the same as that of the signal receiving end face of the signal receiving module.
Optionally, the shapes of the signal transmitting end surface of the signal transmitting module and the signal receiving end surface of the signal receiving module include a circle or a regular polygon.
For example, the shapes of the signal transmitting end face of the signal transmitting module and the signal receiving end face of the signal receiving module are set to be circular or regular polygon, so that the detection signal transmitted by the signal transmitting module can better cover the overhead line of the distribution network.
Optionally, the signal transmitting module includes an infrared transmitter; the signal receiving module comprises an infrared receiver.
Illustratively, an infrared transmitter is used for transmitting a detection signal, mainly because the infrared transmitter is low in cost and low in power consumption, and an infrared receiver serving as a signal receiving module can detect whether foreign objects intrude into the overhead line of the distribution network for a long time or not in real time.
Example two
The embodiment provides a further distribution network overhead line detection system based on the above embodiment. Fig. 3 is a schematic structural diagram of another distribution network overhead line detection system according to a second embodiment of the present invention, and referring to fig. 3, the distribution network overhead line detection system according to the second embodiment of the present invention further includes a positioning module 160, where the positioning module 160 is configured to determine positioning information of a tower; the positioning module 160 is electrically connected to the wireless transmission module 140, and the wireless transmission module 140 is further configured to send the positioning information to the alarm display module 150.
Specifically, a positioning module 160 is arranged on each tower, and the wireless transmission module 140 sends positioning information while sending alarm information to the alarm display module 150, so that the staff receives the alarm signal and also receives the position information of the intrusion of the foreign object.
Optionally, with continued reference to fig. 3, the distribution network overhead line further includes: a power supply module 170; the power module 170 is electrically connected to the signal transmitting module 110, the signal receiving module 120, the signal processing module 130, the wireless transmission module 140 and the positioning module 160, and is configured to supply power to the signal transmitting module 110, the signal receiving module 120, the signal processing module 130, the wireless transmission module 140 and the positioning module 160.
For example, the battery module 170 may be connected to the commercial power, fig. 4 is a schematic structural diagram of another distribution network overhead line detection system provided in the second embodiment of the present invention, referring to fig. 4, the battery module 170 is connected to the commercial power, and one battery module 170 may supply power to a plurality of signal transmitting modules 110, signal receiving modules 120, signal processing modules 130, and positioning modules 160, so as to reduce the number of battery modules 170 and reduce the operation cost.
Optionally, the signal processing module, the wireless transmission module and the power module are installed in a power distribution cabinet near the overhead line of the distribution network or a separately arranged terminal box.
For example, the signal processing module, the wireless transmission module and the power supply module are mounted on the power distribution cabinet near the distribution network overhead line, so that the arrangement of wires in the distribution network overhead line detection system can be reduced, and the signal processing module, the wireless transmission module and the power supply module are mounted in a separately arranged terminal box and can be distinguished from other electronic devices of the tower accessory.
Optionally, the alarm display module includes a display, and the display is used for displaying the positioning information and the alarm signal of the tower.
Specifically, with reference to fig. 4, one wireless transmission module 140 may receive the alarm signal sent by the plurality of signal processing modules 130, and also may receive the location information sent by the plurality of positioning modules 160, and when the wireless transmission module 140 sends the alarm signal to the alarm display module 150, the wireless transmission module also sends the location information, so that the worker can determine the geographical location of the distribution network overhead line where the distribution network overhead line is intruded. When the alarm display module 150 receives the alarm signal, the display in the alarm display module 150 displays the geographical position information of the tower and the intensity and duration of the detection signal.
Optionally, the alarm display module further includes an alarm lamp, and the alarm display module is further configured to start the alarm lamp after receiving the alarm signal.
Illustratively, after the alarm display module receives the alarm signal, the alarm lamp in the alarm display module will flicker, and the staff sees that just can know that there is the long-time invasion of foreign object in joining in marriage net overhead line after the alarm lamp flicker.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A distribution network overhead line detection system, comprising: the device comprises a signal transmitting module, a signal receiving module, a signal processing module, a wireless transmission module and an alarm display module;
the signal transmitting module and the signal receiving module are respectively arranged on adjacent towers, and a detection signal sent by the signal transmitting module covers a distribution network overhead line between the two adjacent towers;
the signal receiving module is used for receiving the detection signal sent by the signal transmitting module;
the signal processing module is electrically connected with the signal receiving module and the wireless transmission module, and is used for detecting the signal intensity of the detection signal received by the signal receiving module and the duration of the signal intensity, and sending an alarm signal to the wireless transmission module when the duration of the signal intensity smaller than the preset intensity exceeds the preset time;
the wireless transmission module is used for transmitting the alarm signal to the alarm display module;
and the alarm display module sends an alarm prompt to the staff after receiving the alarm signal.
2. The detection system according to claim 1, wherein an area of the signal receiving end face of the signal receiving module is not smaller than an area of the signal transmitting end face of the signal transmitting module.
3. The detection system according to claim 2, wherein a line connecting a geometric center of the signal emitting end face of the signal emitting module and a geometric center of the signal receiving end face of the signal receiving module is parallel to a horizontal line, and a shape of the signal receiving end face of the signal receiving module is the same as a shape of the signal emitting end face of the signal emitting module.
4. The detection system according to claim 3, wherein the shapes of the signal transmitting end face of the signal transmitting module and the signal receiving end face of the signal receiving module comprise a circle or a regular polygon.
5. The detection system of claim 1, wherein the signal emitting module comprises an infrared emitter; the signal receiving module comprises an infrared receiver.
6. The detection system of claim 1, further comprising a positioning module, wherein the positioning module is configured to determine positioning information of a tower;
the positioning module is electrically connected with the wireless transmission module, and the wireless transmission module is also used for sending the positioning information to the alarm display module.
7. The detection system of claim 6, further comprising: the power module is electrically connected with the signal transmitting module, the signal receiving module, the signal processing module, the wireless transmission module and the positioning module and used for supplying power to the signal transmitting module, the signal receiving module, the signal processing module, the wireless transmission module and the positioning module.
8. The detection system according to claim 7, wherein the signal processing module, the wireless transmission module and the power supply module are installed in a power distribution cabinet near a distribution network overhead line or a separately provided terminal box.
9. The detection system according to claim 6, wherein the alarm display module comprises a display for displaying positioning information and alarm signals of the tower.
10. The detection system according to claim 1, wherein the alarm display module further comprises an alarm lamp, and the alarm display module is further configured to activate the alarm lamp upon receiving an alarm signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011017409.6A CN112180453A (en) | 2020-09-24 | 2020-09-24 | Distribution network overhead line detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011017409.6A CN112180453A (en) | 2020-09-24 | 2020-09-24 | Distribution network overhead line detection system |
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| CN112180453A true CN112180453A (en) | 2021-01-05 |
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| CN202011017409.6A Pending CN112180453A (en) | 2020-09-24 | 2020-09-24 | Distribution network overhead line detection system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289903A (en) * | 2010-10-18 | 2011-12-21 | 航天科工深圳（集团）有限公司 | Overhead power transmission line monitoring system |
| CN203849431U (en) * | 2014-04-28 | 2014-09-24 | 国家电网公司 | Overhead cable monitoring and alarming device |
| CN106646650A (en) * | 2016-11-10 | 2017-05-10 | 国网新疆电力公司疆南供电公司 | Overhead transmission and distribution line span tree over height detection device |
| CN109544836A (en) * | 2018-11-30 | 2019-03-29 | 国网山东省电力公司济宁供电公司 | A kind of novel power transmission route external force damage prevention monitoring system and monitoring method |
| CN111638561A (en) * | 2020-05-18 | 2020-09-08 | 国网山东省电力公司齐河县供电公司 | Overhead line prevents outer broken alarm device |
| CN211504021U (en) * | 2020-03-27 | 2020-09-15 | 广东电网有限责任公司 | Tree obstacle monitoring system |
-
2020
- 2020-09-24 CN CN202011017409.6A patent/CN112180453A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289903A (en) * | 2010-10-18 | 2011-12-21 | 航天科工深圳（集团）有限公司 | Overhead power transmission line monitoring system |
| CN102289902A (en) * | 2010-10-18 | 2011-12-21 | 航天科工深圳（集团）有限公司 | Overhead power transmission line monitoring and early warning system and working method thereof |
| CN203849431U (en) * | 2014-04-28 | 2014-09-24 | 国家电网公司 | Overhead cable monitoring and alarming device |
| CN106646650A (en) * | 2016-11-10 | 2017-05-10 | 国网新疆电力公司疆南供电公司 | Overhead transmission and distribution line span tree over height detection device |
| CN109544836A (en) * | 2018-11-30 | 2019-03-29 | 国网山东省电力公司济宁供电公司 | A kind of novel power transmission route external force damage prevention monitoring system and monitoring method |
| CN211504021U (en) * | 2020-03-27 | 2020-09-15 | 广东电网有限责任公司 | Tree obstacle monitoring system |
| CN111638561A (en) * | 2020-05-18 | 2020-09-08 | 国网山东省电力公司齐河县供电公司 | Overhead line prevents outer broken alarm device |
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