CN110702161A - Device and method for monitoring and positioning dropping of pins of insulators of transmission towers - Google Patents

Device and method for monitoring and positioning dropping of pins of insulators of transmission towers Download PDF

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Publication number
CN110702161A
CN110702161A CN201911053240.7A CN201911053240A CN110702161A CN 110702161 A CN110702161 A CN 110702161A CN 201911053240 A CN201911053240 A CN 201911053240A CN 110702161 A CN110702161 A CN 110702161A
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CN
China
Prior art keywords
sensor
pin
monitoring
monitoring module
positioning
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Pending
Application number
CN201911053240.7A
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Chinese (zh)
Inventor
何冰
谢小松
孟夏卿
王欣庭
张羽公
王宗洋
张伟
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State Grid Shanghai Electric Power Co Ltd
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State Grid Shanghai Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by State Grid Shanghai Electric Power Co Ltd filed Critical State Grid Shanghai Electric Power Co Ltd
Priority to CN201911053240.7A priority Critical patent/CN110702161A/en
Publication of CN110702161A publication Critical patent/CN110702161A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for

Abstract

The invention relates to a device and a method for monitoring and positioning dropping of pins of insulators of a power transmission tower. The monitoring positioning device comprises a pin sensor, a tower bottom sensor, an NB-IoT network and a monitoring module; the pin sensor is arranged on the insulator pin; the tower bottom sensor is arranged on a base at the bottom of the power transmission iron tower; the pin sensor and the tower bottom sensor are communicated with the monitoring module through an NB-IoT network; the monitoring module judges whether the pin falls off or not through the height information of the pin sensor, and the state monitoring of the insulator pin is realized. The monitoring and positioning method is used for the device, so that the real-time monitoring of the pin-level defects of the power transmission iron tower is realized. Compared with the prior art, the method has the advantages of good real-time performance, high safety, high accuracy, capability of quickly positioning the fault point and the like.

Description

Device and method for monitoring and positioning dropping of pins of insulators of transmission towers
Technical Field
The invention relates to the technical field of transmission line detection, in particular to a device and a method for monitoring and positioning dropping of pins of insulators of a transmission tower.
Background
Insulator string pins on the power transmission iron tower are used for connecting insulators and are key components on the iron tower, but due to long-term wind blowing, the pins are prone to falling off due to long-term shaking, potential safety hazards exist, power transmission lines break down, and huge economic losses are brought to power companies. Therefore, the state of the insulator string pins needs to be monitored, hidden dangers can be found in time, and the safety of the power transmission line is guaranteed.
At present, the routing inspection of the power transmission line mainly depends on manual operation, the problems of low efficiency and poor safety exist, and routing inspection results are greatly influenced by objective factors such as personnel skills, weather and environment. Therefore, intelligent high-voltage tower inspection is necessary.
With the development of unmanned aerial vehicle technology, research and application of detecting pin-level defects by unmanned aerial vehicle shooting have been available. However, this method also has disadvantages: firstly, the detection rate cannot be guaranteed, and pin-level defects may not be shot or identified due to the problems of the shooting angle of the unmanned aerial vehicle, the video/photo background and the like, so that detection omission is caused; second, the timeliness of detection is a significant concern if pin-level defects occur in the clearance of inspection, such defects being encountered in inclement weather. Therefore, how to monitor the state of the insulator string pin of the transmission tower in real time is important, but the field also belongs to a blank internationally at present.
In the prior art, manual inspection has the problems of low efficiency, poor safety, poor timeliness, incapability of ensuring accuracy and the like; the unmanned aerial vehicle inspection technology has the problems of large influence factor caused by environmental interference, large difficulty in accurate identification, poor real-time performance, potential safety hazard and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the device and the method for monitoring and positioning the falling of the pins of the insulators of the transmission towers, which have good real-time property, high safety and high accuracy.
The purpose of the invention can be realized by the following technical scheme:
a power transmission tower insulator pin falling monitoring and positioning device comprises a pin sensor, a tower bottom sensor, an NB-IoT network and a monitoring module; the pin sensor is arranged on the insulator pin; the tower bottom sensor is arranged on a base at the bottom of the power transmission iron tower; the pin sensor and the tower bottom sensor are communicated with the monitoring module through an NB-IoT network; the monitoring module judges whether the pin falls off or not through the height information of the pin sensor, and the state monitoring of the insulator pin is realized.
Preferably, the pin sensor comprises a shell, an atmospheric pressure sensing unit, an NB-IoT communication unit, an antenna unit, a power supply and an MCU unit, wherein the atmospheric pressure sensing unit, the NB-IoT communication unit, the antenna unit, the power supply and the MCU unit are arranged in the shell; the atmospheric pressure sensing unit, the NB-IoT communication unit, the antenna unit and the power supply are all connected with the MCU unit.
More preferably, the pin sensor is provided with two through holes for passing through the steel wire rope; the pin sensor is fixedly connected with the pin through a steel wire rope.
A method for monitoring and positioning dropping of pins of insulators of a transmission tower comprises the following steps:
step 1: carrying out sensor coding;
step 2: the monitoring module samples atmospheric pressure information collected by the pin sensor and the tower bottom sensor;
and step 3: the monitoring module processes the atmospheric pressure information to obtain sensor height information;
and 4, step 4: the monitoring module judges whether the pin falls off or is damaged according to the height information of the sensor and the alarm condition, if so, the step 5 is executed, and if not, the step 6 is executed;
and 5: the monitoring module positions the falling pin and displays alarm information;
step 6: the pin does not fall off or is damaged, and the cycle is finished.
Preferably, the step 1 specifically comprises:
step 1-1: the monitoring module creates a sensor ID number;
step 1-2: the monitoring module sends the ID number of the sensor to the pin sensor;
step 1-3: the pin sensor sends the position information of the current sensor and the ID number of the sensor to the monitoring module;
step 1-4: the monitoring module binds the ID number of the current sensor and the position information corresponding to the ID number;
step 1-5: and finishing sensor coding.
Preferably, the sampling period of the monitoring module in the step 2 is 12 hours.
Preferably, the step 4 specifically includes:
step 4-1: judging whether the current pin sensor has data feedback, if so, executing the step 4-2, otherwise, damaging the current pin sensor;
step 4-2: and judging whether the height difference between the current pin sensor and the corresponding tower bottom sensor of the current pin sensor is less than 2m or not, if so, dropping the current pin sensor, otherwise, not dropping the current pin sensor.
Preferably, the step 5 specifically comprises:
step 5-1: the monitoring module acquires the ID number of the falling pin;
step 5-2: inquiring the position information of the sensor according to the ID number;
step 5-3: and finishing the positioning of the falling pin.
Compared with the prior art, the invention has the following advantages:
firstly, the real-time property is good: the invention realizes real-time monitoring of pin level defects based on NB-IoT wireless communication technology, and overcomes the problem of poor real-time performance of the prior art.
Secondly, the safety is high: according to the invention, the sensor transmits the acquired information to the monitoring module through the NB-IoT wireless communication technology, so that manual on-site inspection is not needed, and the safety is high.
Thirdly, the accuracy is high: the tower bottom sensor is arranged, and the data acquired by the pin sensor and the tower bottom sensor are compared to be used as reference for maintenance judgment, so that the accuracy is higher.
Fourthly, quickly positioning fault points: according to the invention, the ID number of the sensor is bound with the corresponding position information of the sensor, and the damaged or fallen sensor is identified in a sensor coding mode, so that a fault point can be quickly positioned, the maintenance time is reduced, the maintenance efficiency is improved, and the line safety is ensured.
Drawings
FIG. 1 is a schematic view of a monitoring and positioning device according to the present invention;
FIG. 2 is a schematic diagram of the construction of the pin sensor of the present invention;
FIG. 3 is a schematic structural view of the pin sensor of the present invention in connection with an insulator pin;
FIG. 4 is a schematic view of the pin sensor of the present invention in connection with a pin;
FIG. 5 is a flow chart of a method of monitoring positioning in the present invention;
FIG. 6 is a flow chart of a sensor encoding method of the present invention.
The reference numbers in the figures indicate:
1. the device comprises a pin sensor, a tower bottom sensor, a 3, NB-IoT network, a 4, a monitoring module, 11, a shell, 12, an atmospheric pressure sensing unit, 13, an NB-IoT communication unit, 14, an antenna unit, 15, a power supply, 16, an MCU unit, 17 and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 1, the monitoring and positioning device includes several pin sensors 1, a tower bottom sensor 2, an NB-IoT network 3, and a monitoring module 4. The pin sensor 1 is fixedly connected with the insulator pin. The tower bottom sensors 2 are arranged on bases at the bottom of the iron tower, the number of the tower bottom bases is 4, and the tower bottom sensors 2 can be arranged on one of the bases. The pin sensor 1 and the tower bottom sensor 2 both communicate with the monitoring module 4 through the NB-IoT network 3. The monitoring module 4 converts atmospheric pressure information collected by the pin sensor 1 and the tower bottom sensor 2 into sensor height information, and then compares the heights of the pin sensor 1 and the tower bottom sensor 2 to judge whether the pin sensor 1 falls off.
It should be noted that the monitoring module 4 can also determine whether the sensor is damaged by determining whether the sensor data is fed back.
As shown in fig. 2, the pin sensor 1 includes a housing 11, an atmospheric pressure sensing unit 12 mounted inside the housing 11, an NB-IoT communication unit 13, an antenna unit 14, a power supply 15, and an MCU unit 16. The atmospheric pressure sensing unit 12, the NB-IoT communication unit 13, the antenna unit 14, and the power supply 15 are all connected to the MCU unit 16. In this embodiment, the atmospheric pressure sensing unit 12 employs bosch BMP 280; the NB-IoT communication unit 13 employs the remote BC 26; MCU unit 16 employs STM32L151C8T 6; the power supply 15 is powered by a combination of a nickel lithium battery and a large-capacity energy storage capacitor.
As shown in fig. 3 and 4, two through holes 17 with a diameter of 5mm are formed in the housing of the pin sensor 1, and the pin sensor 1 and the pin are fixed through a steel wire rope perforation of 304 stainless steel, 0.3mm diameter and 1 × 7 structure.
As shown in fig. 5, the monitoring and positioning method of the present invention includes the following steps:
step 1: carrying out sensor coding, specifically:
as shown in fig. 6, the specific steps of performing sensor encoding are:
step 1-1: the monitoring module 4 creates a sensor ID number;
step 1-2: the monitoring module 4 sends the ID number of the sensor to the pin sensor 1;
step 1-3: the pin sensor 1 sends the position information of the current sensor and the ID number of the sensor to the monitoring module 4;
step 1-4: the monitoring module 4 binds the current sensor ID number and the position information corresponding to the number;
step 1-5: and finishing sensor coding.
Step 2: the monitoring module 4 samples the atmospheric pressure information collected by the pin sensor 1 and the tower bottom sensor 2, and the sampling period is 12 hours. It should be noted that the sampling period is not a fixed value, and can be determined according to actual requirements.
And step 3: the monitoring module 4 processes the atmospheric pressure information to obtain sensor height information;
and 4, step 4: the monitoring module 4 judges whether the pin falls off or is damaged according to the height information of the sensor and the alarm condition, if so, the step 5 is executed, and if not, the step 6 is executed;
the method for judging whether the pin falls off or is damaged by the monitoring module 4 specifically comprises the following steps:
step 4-1: judging whether the current pin sensor 1 has data feedback, if so, executing the step 4-2, otherwise, damaging the current pin sensor 1;
step 4-2: and judging whether the height difference between the current pin sensor 1 and the corresponding tower bottom sensor 2 is less than 2m, if so, dropping the current pin sensor, otherwise, not dropping the current pin sensor.
And 5: the monitoring module 4 positions the falling pin and displays alarm information;
the concrete steps of positioning the position of the falling pin are as follows:
step 5-1: the monitoring module 4 acquires the ID number of the falling pin;
step 5-2: inquiring the position information of the sensor according to the ID number;
step 5-3: and finishing the positioning of the falling pin.
Step 6: the pin does not fall off or is damaged, and the cycle is finished.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. A monitoring and positioning device for the falling of pins of insulators of a power transmission tower is characterized by comprising a pin sensor (1), a tower bottom sensor (2), an NB-IoT network (3) and a monitoring module (4); the pin sensor (1) is arranged on the insulator pin; the tower bottom sensor (2) is arranged on a base at the bottom of the power transmission iron tower; the pin sensor (1) and the tower bottom sensor (2) are communicated with the monitoring module (4) through an NB-IoT network (3); the monitoring module (4) judges whether the pin falls off or not through the height information of the pin sensor (1), and the state monitoring of the insulator pin is realized.
2. The device for monitoring and positioning pin fall-off of the insulator of the power transmission tower according to claim 1, wherein the pin sensor (1) comprises a shell (11), an atmospheric pressure sensing unit (12) installed in the shell (11), an NB-IoT communication unit (13), an antenna unit (14), a power supply (15) and an MCU unit (16); the atmospheric pressure sensing unit (12), the NB-IoT communication unit (13), the antenna unit (14) and the power supply (15) are all connected with the MCU unit (16).
3. The device for monitoring and positioning the pin fall-off of the insulator of the power transmission tower according to claim 2, wherein two through holes (17) for passing through a steel wire rope are formed in the pin sensor (1); the pin sensor (1) is fixedly connected with the pin through a steel wire rope.
4. A method for monitoring and positioning the falling off of the insulator pin of the transmission tower for the device according to claim 1, wherein the method for monitoring and positioning the falling off comprises the following steps:
step 1: carrying out sensor coding;
step 2: the monitoring module (4) samples atmospheric pressure information collected by the pin sensor (1) and the tower bottom sensor (2);
and step 3: the monitoring module (4) processes the atmospheric pressure information to obtain sensor height information;
and 4, step 4: the monitoring module (4) judges whether the pin falls off or is damaged or not according to the height information of the sensor and the alarm condition, if so, the step 5 is executed, and if not, the step 6 is executed;
and 5: the monitoring module (4) positions the falling pin and displays alarm information;
step 6: the pin does not fall off or is damaged, and the cycle is finished.
5. The method for monitoring and positioning dropping of the pins of the insulators of the transmission towers according to claim 4, wherein the step 1 specifically comprises the following steps:
step 1-1: the monitoring module (4) creates a sensor ID number;
step 1-2: the monitoring module (4) sends the ID number of the sensor to the pin sensor (1);
step 1-3: the pin sensor (1) sends the position information of the current sensor and the ID number of the sensor to the monitoring module (4);
step 1-4: the monitoring module (4) binds the current sensor ID number and the position information corresponding to the number;
step 1-5: and finishing sensor coding.
6. The method for monitoring and positioning the pin fall-off of the insulator of the power transmission tower according to claim 4, wherein the sampling period of the monitoring module (4) in the step 2 is 12 hours.
7. The method for monitoring and positioning dropping of the pins of the insulators of the transmission towers according to claim 4, wherein the step 4 specifically comprises the following steps:
step 4-1: judging whether the current pin sensor (1) has data feedback, if so, executing the step 4-2, otherwise, damaging the current pin sensor (1);
step 4-2: and judging whether the height difference between the current pin sensor (1) and the corresponding tower bottom sensor (2) of the sensor is less than 2m or not, if so, dropping off the current pin sensor, otherwise, not dropping off the current pin sensor.
8. The method for monitoring and positioning dropping of the pins of the insulators of the transmission towers according to claim 4, wherein the step 5 specifically comprises the following steps:
step 5-1: the monitoring module (4) acquires the ID number of the falling pin;
step 5-2: inquiring the position information of the sensor according to the ID number;
step 5-3: and finishing the positioning of the falling pin.
CN201911053240.7A 2019-10-31 2019-10-31 Device and method for monitoring and positioning dropping of pins of insulators of transmission towers Pending CN110702161A (en)

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Application Number Priority Date Filing Date Title
CN201911053240.7A CN110702161A (en) 2019-10-31 2019-10-31 Device and method for monitoring and positioning dropping of pins of insulators of transmission towers

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Application Number Priority Date Filing Date Title
CN201911053240.7A CN110702161A (en) 2019-10-31 2019-10-31 Device and method for monitoring and positioning dropping of pins of insulators of transmission towers

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102458248A (en) * 2009-06-23 2012-05-16 皇家飞利浦电子股份有限公司 Methods and apparatus for detecting fall of user
US20130068031A1 (en) * 2011-09-21 2013-03-21 King Abdulaziz City For Science And Technology Bolt tension monitoring system
CN108418973A (en) * 2018-03-30 2018-08-17 广东欧珀移动通信有限公司 Fall detection method and relevant apparatus
CN208080612U (en) * 2018-02-08 2018-11-13 上海点贸信息技术有限公司 A kind of building safety cap with positioning function
CN208848050U (en) * 2018-10-31 2019-05-10 桂林师范高等专科学校 Steel tower safety detection system
CN209102257U (en) * 2018-08-16 2019-07-12 中国电力科学研究院有限公司 A kind of intelligent bolt component

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102458248A (en) * 2009-06-23 2012-05-16 皇家飞利浦电子股份有限公司 Methods and apparatus for detecting fall of user
US20130068031A1 (en) * 2011-09-21 2013-03-21 King Abdulaziz City For Science And Technology Bolt tension monitoring system
CN208080612U (en) * 2018-02-08 2018-11-13 上海点贸信息技术有限公司 A kind of building safety cap with positioning function
CN108418973A (en) * 2018-03-30 2018-08-17 广东欧珀移动通信有限公司 Fall detection method and relevant apparatus
CN209102257U (en) * 2018-08-16 2019-07-12 中国电力科学研究院有限公司 A kind of intelligent bolt component
CN208848050U (en) * 2018-10-31 2019-05-10 桂林师范高等专科学校 Steel tower safety detection system

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