Power transmission line on-line monitoring device and working method thereof

Abstract

The invention discloses a power transmission line on-line monitoring device and a working method thereof, and belongs to the field of power transmission line monitoring. Comprising a multi-mode communication intelligent management and control module, a visual intelligent inspection device, a Beidou short message module, a high-throughput satellite communication module, a network bridge, a power transmission line on-line monitoring sensor and a power supply module. The multimode communication intelligent management and control module is in signal connection with the visual intelligent inspection device, the Beidou short message module, the high-throughput satellite communication module, the network bridge and the power transmission line on-line monitoring sensor, and the Beidou short message module and the high-throughput satellite communication module are connected with a Beidou antenna and a high-throughput satellite antenna respectively. According to the invention, Beidou positioning, short message communication, high-throughput satellite communication and a time-sharing wake-up mechanism of the intelligent power transmission line inspection device are realized through the multi-mode communication intelligent management and control module, the stability of equipment communication is improved, the power consumption of equipment is reduced, the volume and weight of the equipment are reduced, the construction difficulty of hanging a tower on the equipment is reduced, and the inspection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of transmission line monitoring, and particularly to an on-line monitoring device for transmission lines and its working method. Background Art

[0002] In China, the energy distribution is uneven, the transmission lines have large spans and are widely distributed, and some transmission lines are located in remote mountainous areas without mobile network signals, making the inspection difficult. Summary of the Invention

[0003] The present invention provides an on-line monitoring device for transmission lines and its working method, which improves the stability of device communication, reduces the power consumption of the device, reduces the volume and weight of the device, reduces the construction difficulty of hanging the device on the tower, and improves the inspection efficiency.

[0004] The technical solution provided by the present invention is as follows:

[0005] An on-line monitoring device for transmission lines includes a multi-mode communication intelligent control module, a visual intelligent inspection device, a Beidou short message module, a high-throughput satellite communication module, a bridge, an on-line monitoring sensor for transmission lines, and a power supply module, wherein:

[0006] The power supply module is electrically connected to the multi-mode communication intelligent control module, the visual intelligent inspection device, the Beidou short message module, the high-throughput satellite communication module, the bridge, and the on-line monitoring sensor for transmission lines. The multi-mode communication intelligent control module is signal-connected to the visual intelligent inspection device, the Beidou short message module, the high-throughput satellite communication module, the bridge, and the on-line monitoring sensor for transmission lines. The Beidou short message module and the high-throughput satellite communication module are respectively connected with a Beidou antenna and a high-throughput satellite antenna.

[0007] Further, the on-line monitoring sensor for transmission lines includes one or more of a tower inclination sensor, a conductor galloping sensor, an icing sensor, and a micro-meteorological sensor.

[0008] Further, the power supply module includes a photovoltaic panel and a storage battery.

[0009] Further, the multi-mode communication intelligent control module is connected to the visual intelligent inspection device, the high-throughput satellite communication module, and the bridge through a network port, the multi-mode communication intelligent control module is connected to the Beidou short message module through a serial port, the multi-mode communication intelligent control module is connected to the tower inclination sensor and the micro-meteorological sensor through an RS485 interface, and the multi-mode communication intelligent control module is connected to the galloping sensor and the icing sensor through a LORA or 433 communication module.

[0010] Further, the multi-mode communication intelligent control module has a power management circuit and a hardware trigger pin.

[0011] Furthermore, the on-line monitoring device for transmission lines is applied in a signal-free area.

[0012] A working method of the on-line monitoring device for transmission lines as described above, the method comprising:

[0013] S1: At the start of the inspection tour, the multi-mode communication intelligent control module receives the control strategy instructions transmitted by the power platform through the Beidou short message module, and issues the timing trigger strategy or the active trigger strategy according to the control instructions;

[0014] S2: When it is a timing trigger strategy, the timing inspection mode is executed, and the multi-mode communication intelligent control module triggers the visual intelligent inspection device to perform an inspection tour at preset times and intervals, and realizes the taking of photos or videos;

[0015] S3: The visual intelligent inspection device performs intelligent analysis on the taken photos or videos to determine whether potential hazards are found. When potential hazards are found, S4 is executed; otherwise, S6 is executed;

[0016] S4: The multi-mode communication intelligent control module powers on the high-throughput satellite communication module, and transmits the photos or videos to the power platform through the high-throughput satellite communication module;

[0017] S5: After the transmission of the photos or videos is completed, the multi-mode communication intelligent control module triggers the visual intelligent inspection device to enter the low-power mode, and cuts off the power supply of the high-throughput satellite communication module;

[0018] S6: Transmit the inspection result of no potential hazards found to the power platform through the Beidou short message module.

[0019] Furthermore, the method further comprises:

[0020] S7: When it is an active trigger strategy, the active inspection mode is executed, and the multi-mode communication intelligent control module receives the inspection instructions issued by the power platform through the Beidou short message module;

[0021] S8: The multi-mode communication intelligent control module triggers the visual intelligent inspection device to perform an inspection tour, realizes the taking of photos or videos, and at the same time the multi-mode communication intelligent control module powers on the high-throughput satellite communication module;

[0022] S9: After the visual intelligent inspection device completes the inspection tour, it transmits the photos or videos to the power platform through the high-throughput satellite communication module;

[0023] S10: The multi-mode communication intelligent control module triggers the visual intelligent inspection device to enter the low-power mode. After a set delay time, if no new inspection instruction is received, the power supply of the high-throughput satellite communication module is cut off.

[0024] The present invention has the following beneficial effects:

[0025] The present invention designs a multi-mode communication intelligent control module to implement a time-sharing wake-up mechanism for Beidou positioning, short message communication, high-throughput satellite communication, and power transmission line intelligent inspection devices. The inspection is carried out through the visual intelligent inspection device, and the monitoring is carried out through the on-line monitoring sensor of the power transmission line. When data needs to be transmitted, low-data-volume transmission is carried out through Beidou short message communication, and high-data-volume transmission is carried out through high-throughput satellite communication. When the power transmission line intelligent inspection device and the high-throughput satellite communication module are not in use, they can enter the low-power or power-off state to reduce power consumption. The present invention improves the communication stability of the device, reduces the power consumption of the device, reduces the volume and weight of the device, reduces the construction difficulty of hanging the device on the tower, improves the inspection efficiency, has great practical value, and greatly improves the power transmission inspection efficiency. Description of the Drawings

[0026] Figure 1 It is the principle block diagram of the on-line monitoring device for power transmission lines of the present invention. Detailed Embodiments

[0027] To make the technical problems, technical solutions, and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0028] The embodiment of the present invention provides an on-line monitoring device for power transmission lines, which is applicable to the on-line monitoring of power transmission lines in signal areas and non-signal areas, especially in non-signal areas. As Figure 1 shown, the device includes a multi-mode communication intelligent control module 1, a visual intelligent inspection device 2, a Beidou short message module 3, a high-throughput satellite communication module 4, a bridge 5, an on-line monitoring sensor for power transmission lines, and a power supply module, where:

[0029] The power supply module is electrically connected to the multi-mode communication intelligent control module 1, the visual intelligent inspection device 2, the Beidou short message module 3, the high-throughput satellite communication module 4, the bridge 5, and the on-line monitoring sensor for power transmission lines. The multi-mode communication intelligent control module 1 is signal-connected to the visual intelligent inspection device 2, the Beidou short message module 3, the high-throughput satellite communication module 4, the bridge 5, and the on-line monitoring sensor for power transmission lines. The Beidou short message module 3 and the high-throughput satellite communication module 4 are respectively connected with a Beidou antenna 6 and a high-throughput satellite antenna 7.

[0030] The on-line monitoring sensors for transmission lines may include one or more of a tower inclination sensor 8, a conductor galloping sensor 9, an icing sensor 10, and a micro-meteorological sensor 11. The power supply module includes a photovoltaic panel 12 and a storage battery 13.

[0031] The multi-mode communication intelligent control module 1 is connected to the visual intelligent inspection device 2 through a network port to transmit control instructions and data such as inspection pictures and videos. The multi-mode communication intelligent control module 1 is connected to the high-throughput satellite communication module 4 and the network bridge 5 through network ports for communication. The multi-mode communication intelligent control module 1 is connected to the Beidou short message module 3 through a serial port for communication. The multi-mode communication intelligent control module 4 is connected to the tower inclination sensor 8 and the micro-meteorological sensor 11 through RS485 interfaces to transmit the inclination and micro-meteorological data information of the inspection. The multi-mode communication intelligent control module 1 is connected to the galloping sensor 9 and the icing sensor 10 through LORA (LoRa is a kind of LPWAN communication technology, a long-distance wireless transmission solution based on spread spectrum technology adopted and promoted by Semtech Corporation in the United States) or a 433 communication module (a communication module with a frequency of 433 MHz) to transmit the conductor icing and galloping data.

[0032] The multi-mode communication intelligent control module 1 has a power management circuit, which can realize the charge and discharge management of solar energy and can realize the power control functions of the Beidou short message module, the high-throughput satellite communication module, the visual intelligent inspection device, the network bridge, the micro-meteorological sensor, and the inclination sensor. The multi-mode communication intelligent control module 1 also has a hardware trigger pin. When receiving the main station control instruction, it wakes up the visual intelligent inspection device in the low-power state through hardware triggering.

[0033] The Beidou short message module 3 realizes the positioning function of the device through the RNSS antenna and can realize the function of sending user-to-satellite data through the RDSS antenna. The standby power consumption of this Beidou short message module 3 is 0.9W, the maximum transmission power consumption is 38W, and the average working power consumption is 10W, and it can transmit the monitoring information of the transmission line status.

[0034] The one-to-many network link can be extended through the network bridge. Through bridging by the network bridge, the mobile network is extended, and the data transmission of multi-level adjacent transmission towers is realized. The inspection images or videos pass through the links level by level, so that the monitoring data is finally aggregated to the networked area and transmitted to the power inspection platform to realize the uploading function of the transmission line images and status monitoring data. The operation and maintenance personnel can view the inspection images in real time without going to the site. The network bridge has two types of antennas, omnidirectional and directional, which can be adapted to star-shaped or chain network connections. Select the appropriate mode according to the topological structure of the transmission line status monitoring. The average power consumption of the network bridge is generally about 14W.

[0035] High-throughput communication satellites are marked by spot beams and frequency reuse. They can operate in any frequency band, with varying throughputs depending on the allocated spectrum and the number of frequency reuse times. They can provide various commercial satellite communication services such as fixed, broadcast, and mobile services. Under the condition of the same spectrum resources, the communication capacity of the entire satellite (abbreviated as throughput) is several times that of traditional fixed communication satellites (FSS). The solution to network transmission in signal-free areas using satellite high-throughput communication is a future direction.

[0036] The above three technical routes of Beidou short message, bridge, and high-throughput communication satellite can meet the needs of power transmission line status monitoring in signal-free areas to a certain extent, but their main technical disadvantages are as follows:

[0037] Limited by technology, bandwidth, and the number of satellites, Beidou short message can achieve low-frequency and low-data-volume data transmission. When transmitting a large amount of data, the transmission time is long, reducing the inspection efficiency and making it impossible to obtain inspection information in real time.

[0038] Large amounts of data can be transmitted through bridging by a bridge or MESH self-organizing network. However, the laid lines are long, and when there is a fault in the middle, it may cause the transmission of subsequent data, resulting in a large number of subsequent devices going offline and low inspection reliability. Moreover, the laid network is long, the cost is high, and the construction difficulty is large, which is not conducive to large-scale popularization and application.

[0039] Although the solution to network transmission in signal-free areas using satellite high-throughput communication is a future direction, currently, the power consumption of the monitoring station is high. When deployed in the wild, a large-capacity battery needs to be configured, resulting in a high project cost, high transportation cost, and difficult deployment. Visual inspection devices in signal-covered areas are equipped with mobile SIM cards, and the power consumption optimization is relatively ideal. There is still a lack of corresponding optimization solutions in signal-free areas.

[0040] The antenna of the satellite broadband communication monitoring station is large, generally with a diameter of not less than 45 cm, heavy in weight, and high in power consumption. The power consumption during operation can reach 60 W, and about 15 W in standby state. Solar power supply is required in the wild. To ensure continuous network connection under harsh conditions, the configured battery is usually very large. In the power industry, it is usually required to meet the standby operation demand of 30 days under lightless conditions. It can be imagined the capacity of the battery and the solar panel. Carrying such heavy solar panels, batteries, and satellite monitoring station antennas increases the installation difficulty of the equipment and the cost is high.

[0041] The present invention designs a multi-mode communication intelligent control module, which realizes a time-sharing wake-up mechanism for Beidou positioning, short message communication, high-throughput satellite communication and intelligent inspection devices for transmission lines. The inspection is carried out through a visual intelligent inspection device, and the monitoring is carried out through on-line monitoring sensors for transmission lines. When data needs to be transmitted, low-data-volume transmission is carried out through Beidou short message communication, and high-data-volume transmission is carried out through high-throughput satellite communication. When the intelligent inspection device for transmission lines and the high-throughput satellite communication module are not in use, they can be put into a low-power or power-off state to reduce power consumption. The present invention improves the communication stability of the device, reduces the power consumption of the device, reduces the volume and weight of the device, reduces the construction difficulty of hanging the device on the tower, improves the inspection efficiency, has great practical value, and greatly improves the transmission line inspection efficiency.

[0042] The working method of the aforementioned on-line monitoring device for transmission lines of the present invention includes the following steps:

[0043] S1: At the start of the inspection, the multi-mode communication intelligent control module 1 receives the control strategy instructions transmitted by the power platform through the Beidou short message module 3, and issues the timing trigger strategy or the active trigger strategy according to the control instructions.

[0044] Before the start of the inspection, settings need to be made, such as setting the working modes of the satellite communication master station and the monitoring station, including data such as the timing wake-up time interval, the communication IP and port of the master station, and the communication bandwidth; setting the short message sending and receiving party addresses, message formats, ports and baud rates of the Beidou short message module; configuring the photographing time and interval of the visual intelligent inspection device through the power platform.

[0045] S2: When it is a timing trigger strategy, the timing inspection mode is executed. The multi-mode communication intelligent control module 1 triggers the visual intelligent inspection device 2 to conduct inspections at preset times and intervals, and realizes the shooting of photos or videos.

[0046] S3: The visual intelligent inspection device 2 performs intelligent analysis on the taken photos or videos to judge whether potential hazards are found. When potential hazards are found, S4 is executed; otherwise, S6 is executed.

[0047] S4: The multi-mode communication intelligent control module 1 powers on the high-throughput satellite communication module 4 to realize the connection between the satellite communication monitoring station and the master station. After the network connection is established, the photos or videos of the found potential hazards are transmitted to the power platform through the high-throughput satellite communication module 4.

[0048] S5: After the transmission of the photos or videos is completed, the multi-mode communication intelligent control module 1 triggers the visual intelligent inspection device 2 to enter the low-power mode and cuts off the power supply of the high-throughput satellite communication module 4.

[0049] S6: When no potential hazards are found, the inspection results indicating no potential hazards are transmitted to the power platform through the Beidou short message module 3, while photos or videos are not transmitted.

[0050] In daily regular inspection tasks, inspection photos or videos are analyzed by the intelligent analysis of the visual intelligent inspection device 2 to identify potential hazards. When there are potential hazards, the images and short videos are transmitted through the high-throughput satellite communication module. When there are no potential hazards, the inspection results and the operating status of the equipment are transmitted through the Beidou short message, thus saving traffic and power consumption.

[0051] Further, the above method further includes:

[0052] S7: When the active trigger strategy is adopted, the active inspection mode is executed. The multi-mode communication intelligent control module 1 receives the inspection instructions issued by the power platform through the Beidou short message module 3.

[0053] S8: The multi-mode communication intelligent control module 1 triggers the visual intelligent inspection device 2 to conduct an inspection, realizes the shooting of photos or videos. At the same time, the multi-mode communication intelligent control module 1 powers on the high-throughput satellite communication module 4.

[0054] S9: After the visual intelligent inspection device 2 completes the inspection, it transmits photos or videos to the power platform through the high-throughput satellite communication module 4.

[0055] S10: After the visual intelligent inspection device 2 completes the inspection, the multi-mode communication intelligent control module 1 triggers the visual intelligent inspection device 2 to enter the low-power mode. And after a set delay time, if no new inspection instructions are received, the power supply of the high-throughput satellite communication module 4 is cut off, thus saving power consumption.

[0056] In the foregoing process, when the Beidou short message module cannot work properly, the multi-mode communication intelligent control module can trigger the visual device to conduct inspections and control the power supply connection of the high-throughput satellite communication module at regular intervals to conduct inspections, improving the stability of dual-mode communication.

[0057] According to the different inspection requirements of power companies, different network expansion modes can be configured, including two forms: one-to-one and one-to-many. One-to-one means one visual intelligent inspection device and a set of satellite communication solutions. One-to-many is to solve the problem of visual inspection transmission of multi-level poles and towers. The network expansion is achieved through the cascading of network bridges. The cascading of network bridges is divided into two types: star and chain, and the configuration is selected according to different geographical environments.

[0058] The above is the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An on-line monitoring device for a transmission line, characterized in that, It includes a multi-mode communication intelligent control module, a visual intelligent inspection device, a Beidou short message module, a high-throughput satellite communication module, a bridge, an on-line monitoring sensor for transmission lines, and a power supply module, where: The power supply module is electrically connected to the multi-mode communication intelligent control module, the visual intelligent inspection device, the Beidou short message module, the high-throughput satellite communication module, the bridge, and the on-line monitoring sensor for transmission lines. The multi-mode communication intelligent control module is signal-connected to the visual intelligent inspection device, the Beidou short message module, the high-throughput satellite communication module, the bridge, and the on-line monitoring sensor for transmission lines. The Beidou short message module and the high-throughput satellite communication module are respectively connected with a Beidou antenna and a high-throughput satellite antenna.

2. The on-line monitoring device for transmission lines according to claim 1, characterized in that, The on-line monitoring sensor for transmission lines includes one or more of a tower inclination sensor, a conductor galloping sensor, an icing sensor, and a micro-meteorological sensor.

3. The on-line monitoring device for transmission lines according to claim 2, wherein The power supply module includes a photovoltaic panel and a storage battery.

4. The on-line monitoring device for transmission lines according to claim 3, characterized in that, The multi-mode communication intelligent control module is connected to the visual intelligent inspection device, the high-throughput satellite communication module, and the bridge through a network port. The multi-mode communication intelligent control module is connected to the Beidou short message module through a serial port. The multi-mode communication intelligent control module is connected to the tower inclination sensor and the micro-meteorological sensor through an RS485 interface. The multi-mode communication intelligent control module is connected to the galloping sensor and the icing sensor through a LORA or 433 communication module.

5. The on-line monitoring device for transmission lines according to claim 4, characterized in that, The multi-mode communication intelligent control module has a power management circuit and a hardware trigger pin.

6. The on-line monitoring device for transmission lines according to any one of claims 1-5, characterized in that The on-line monitoring device for transmission lines is applied in a signal-free area.

7. A working method of the on-line monitoring device for a transmission line according to any one of claims 2-6, characterized in that, The method includes: S1: At the start of the inspection, the multi-mode communication intelligent control module receives a control strategy instruction transmitted by the power platform through the Beidou short message module, and issues a timing trigger strategy or an active trigger strategy according to the control instruction. S2: When it is a timing trigger strategy, the timing inspection mode is executed. The multi-mode communication intelligent control module triggers the visual intelligent inspection device to perform an inspection at a preset time and interval, and realizes the taking of photos or videos. S3: The visual intelligent inspection device performs intelligent analysis on the taken photos or videos to judge whether potential hazards are found. When potential hazards are found, S4 is executed; otherwise, S6 is executed. S4: The multi-mode communication intelligent control module powers on the high-throughput satellite communication module, and transmits the photos or videos to the power platform through the high-throughput satellite communication module. S5: After the transmission of the photos or videos is completed, the multi-mode communication intelligent control module triggers the visual intelligent inspection device to enter the low-power mode, and cuts off the power supply of the high-throughput satellite communication module. S6: Transmit the inspection result of no potential hazards found to the power platform through the Beidou short message module.

8. The working method according to claim 7, characterized in that, The method further includes: S7: When it is an active trigger strategy, the active inspection mode is executed. The multi-mode communication intelligent control module receives an inspection instruction issued by the power platform through the Beidou short message module. S8: The multi-mode communication intelligent control module triggers the visual intelligent inspection device to conduct inspections, realizes the taking of photos or videos, and at the same time, the multi-mode communication intelligent control module powers on the high-throughput satellite communication module; S9: After the visual intelligent inspection device completes the inspection, it transmits the photos or videos to the power platform through the high-throughput satellite communication module; S10: The multi-mode communication intelligent control module triggers the visual intelligent inspection device to enter the low-power mode. After a set delay time, if no new inspection instructions are received, the power supply of the high-throughput satellite communication module is cut off.

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