CN203011379U - Inclination angle on-line monitoring system of transmission tower - Google Patents

Abstract

The utility model discloses an on-line monitoring system for the inclination angle of a power transmission pole tower, which solves the problems of economy, practicability and limitation of the use range of the existing monitoring device, including an on-site signal module, a data acquisition module, an online monitoring server, and a data transmission module 1. User processing module; the data of the data acquisition module is transmitted to the online monitoring server by means of GPRS/GSM communication, and the online monitoring server processes and collects the data and transmits the data to the user processing module through the data transmission module. The utility model makes full use of the computer's advanced database management technology, graphic display technology and Internet communication technology. By monitoring some measured values that are more sensitive to the inclination of the tower, it can reliably monitor the inclination angle of the transmission tower for a long time with high precision. .

Description

On-line monitoring system for transmission tower inclination angle

technical field

The utility model relates to the monitoring technology of transmission lines, more specifically, relates to an on-line monitoring system of transmission lines, which can be used for monitoring the inclination state of transmission poles and towers in coal mining subsidence areas. the

Background technique

After the underground coal seam in the mining area is mined, the overlying rock layer will lose its support, and the original balance condition will be broken, causing the overlying rock layer to deform, collapse and damage, and finally lead to large-scale subsidence and depression of the surface. my country is a big coal mining country. With the increase of mining volume, the subsidence area caused by coal mining is expanding day by day, and more and more high-voltage transmission lines have to pass through the goaf of coal mines. Since most transmission towers use split foundations, due to the influence of surface deformation, uneven settlement, inclination, horizontal slippage, etc. may occur on the foundation of the tower, which will generate a large additional stress on the lower part of the tower body, resulting in local damage to the tower body or even The whole tower fell. the

In order to ensure the safe operation of the transmission line, the electric power department generally adopts the method of regular inspection to monitor the operation of the transmission tower. However, the ground subsidence in the coal mining subsidence area is very random, and the ground subsidence speed is often very fast. The method of regular inspection is adopted It is difficult to detect and deal with the deformation of the tower foundation in time, which has buried a safety hazard for the normal operation of the transmission line in the goaf. Therefore, the research on the online monitoring technology of the inclination state of the transmission tower in the coal mine goaf is very important to ensure the safety of the transmission line. Operation is of great practical significance. the

Judging from the currently public transmission tower inclination monitoring, there are two main categories: the first is to monitor the inclination state of the tower by installing an inclination sensor on the top of the tower; the other is to install a strain sensor on the tower to measure The deformation of the tower is used to monitor the tilt angle. According to the "Code for Construction and Acceptance of 110-500kV Overhead Power Lines" (GB 50233-2005), the inclination rate of the tower during the operation of the transmission line should not exceed 3/1000 (0.17 degrees), which is an important reference value for the inspection of the power department . If the inclination sensor is used to accurately monitor such a small angle value, there are many problems in terms of economy and practicability; and the method of using the strain sensor to measure the strain of the tower body can only be applied to structural forms such as electric poles and steel pipe poles. For the widely used lattice angle steel tower, it is difficult to establish a direct relationship between the strain of the tower body and the inclination angle, and its application range is also limited. From the above analysis, it can be seen that the existing transmission tower tilt monitoring methods have limitations in economy, practicability and scope of use in practical application, and have not completely solved the problem of transmission tower tilt monitoring. the

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide an online monitoring system for the inclination of transmission line towers. By monitoring some measured values that are more sensitive to the inclination of towers, the inclination of power transmission towers can be reliably monitored for a long time. The angle is monitored with high precision. the

In order to achieve the purpose of the above invention, the technical solution of the present utility model is: including a field signal module, a data acquisition module, an online monitoring server, a data transmission module, and a user processing module;

The on-site signal module is composed of a tension sensor, a high-precision inclination sensor, a wind speed and direction sensor, and a temperature sensor; the data acquisition module collects the monitored signal of the transmission tower and generates monitoring data; the monitoring data includes: overhead line Tension, insulator string inclination, wind speed, wind direction, ambient temperature; the data transmission module is composed of a data server and a Web server;

The data of the data acquisition module is transmitted to the online monitoring server by means of GPRS/GSM communication, and the online monitoring server processes and collects the data and transmits the data to the user processing module through the data transmission module. the

The online monitoring server receives monitoring data in real time, processes the monitoring data according to the mathematical model of the tower-line system, and generates calculation data based on the aforementioned mathematical model, and users can browse the monitoring data and calculation data through the online monitoring server and analysis; the online monitoring server transmits the monitoring data and calculation data to the remote data server in real time for storage, so that experts or remote users can monitor the monitoring data and calculation data via the web server connected to the data server through the monitoring terminal. Browse and analyze the calculated data, and judge the monitoring results: if the inclination rate of the tower is less than three thousandths, it indicates that the tower is normal; if the inclination rate of the tower is greater than three thousandths, but less than six thousandths, it indicates that the tower needs maintenance; if A tower inclination greater than 6 per thousand indicates that the tower needs to be replaced. the

Described monitoring data and calculation data comprise real-time data and historical data, and real-time data refers to continuously sent by GPRS DTU (data terminal equipment, Data Terminal Unit) communication module or GSM short message sending module, and receives from GSM short message receiving module Monitoring data; historical data refers to the past monitoring data and calculation data downloaded from the GSM short message receiving module memory to the data server or stored in the user online monitoring server database. the

The monitoring data include: overhead line tension, insulator string inclination angle, wind speed, wind direction, ambient temperature, etc. The tension sensor is used to measure the overhead line tension, the high-precision inclination sensor is used to measure the inclination angle of the insulator string, and the wind speed and direction sensor is used to measure the position of the transmission line. The wind speed at the location and the angle between it and the line, and the temperature sensor to measure the ambient temperature. the

The online monitoring server receives and reads the monitoring data from the memory in real time through the GSM short message receiving module, and completes data transmission and control based on the RS-232 serial communication protocol between the short message receiving module and the online monitoring server, thereby forming a Basic online monitoring system. the

The sampling methods of the monitoring data include sampling at equal intervals, sampling at regular intervals and sampling according to user instructions. Among them, the sampling interval can be set according to the needs of users, the maximum sampling interval is 24 hours, and the minimum sampling interval is 5 minutes. the

When the monitoring data reaches or exceeds the set value of the alarm level and exceeds the set delay time and filter time, it will automatically alarm according to the predetermined method and prompt the line operator to deal with it accordingly. The alarm level setting includes lower yellow warning and higher red warning; when the monitoring system breaks down, a corresponding system alarm is also carried out. the

The user management module adopts a frame interface, and users can complete data display and operation through a web browser. The frame interface includes a menu bar and a data display area. In the data display area, curves can be used to display monitoring data, and the screen can be automatically adjusted according to the change of the data over time; the real-time monitoring data and historical data can be switched at any time without affecting the reading of real-time data. Use a tree view similar to Windows Explorer to complete the monitoring and operation of multiple projects and data on the same platform: monitoring data, system management, tower management, and user management are divided into "folders" and files Hierarchical management and control; during operation, the user only needs to click on the item with the mouse to browse and operate in the data display area. the

The utility model solves the deficiencies in the monitoring content, data display and data mining functions of other similar transmission pole and tower online monitoring systems, and fully utilizes the computer's advanced database management technology, graphic display technology and Internet communication technology, which can facilitate operation and adjustment. Read and browse the changing trend of monitoring data, complete daily work, and centralize management and monitoring with other systems on the same platform. With the help of rich network resources provided by the Internet, the utility model provides two platforms of on-site monitoring and expert monitoring with different authority, and extends the online monitoring to real-time remote real-time synchronous online monitoring without geographical restrictions. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

In the figure, 1. Field signal module; 2. Data acquisition module; 3. Online monitoring server; 4. Data server; 5. Web server; 6. User processing module. the

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. the

As shown in Figure 1, the utility model provides a new online monitoring system for the inclination angle of transmission towers, including the generation, transmission, reception, browsing and analysis of monitoring data, and provides an efficient platform for the expert system. the

In Fig. 1, tension sensor, high-precision inclination sensor, wind speed and direction sensor, temperature sensor, etc. constitute the field signal module 1, and obtain field signals such as overhead line tension, insulator string inclination, wind speed, wind direction, and ambient temperature, among which the overhead line tension is determined by The inclination angle of the insulator string is measured by a high-precision inclination sensor, the wind speed at the location of the transmission line and the angle between it and the line are measured by a wind speed and direction sensor, and the ambient temperature is measured by a temperature sensor. the

The data acquisition module 2 collects field signals to generate monitoring data, which is transmitted to the online monitoring server 3 in real time by means of GPRS/GSM communication. The online monitoring server 3 processes the monitoring data to obtain calculation data, and transmits the monitoring data and calculation data to the remote data server 4 in real time for preservation, so that experts or remote users can pass through the user processing module 6 and the Web server 5 connected to the data server 4 Browse and analyze the monitoring data and calculation data, and judge the monitoring results: if the inclination rate of the tower is less than three thousandths, it indicates that the tower is normal; if the inclination rate of the tower is greater than three thousandths, but less than six thousandths It indicates that the tower needs maintenance; if the tower tilt rate is greater than 6/1000, it indicates that the tower needs to be replaced. the

The left area of the terminal interface of the monitoring system is divided into three parts: a data monitoring module, a tower management module and a user management module. The data monitoring module includes tower distribution information, real-time data monitoring, historical data monitoring, statistical analysis of monitoring data, map display, and data prediction analysis. The main function of the tower management module is to manage tower information and provide basic parameters for the calculation module. The user management module is responsible for user rights management and maintenance. the

Claims (1)

1. a transmission tower angle of inclination on-line monitoring system, is characterized in that: comprise on-site signal module (1), data acquisition module (2), on-line monitoring server (3), data transmission module, user's processing module (6);

Described on-site signal module (1) is comprised of pulling force sensor, high-precision tilt angle sensor, wind speed wind direction sensor, temperature sensor; Described data acquisition module (2) gathers the monitored signal of transmission tower and generates Monitoring Data; Described Monitoring Data comprises: aerial line tension, insulator chain inclination angle, wind speed, wind direction, environment temperature; Described data transmission module is comprised of data server (4), Web server (5);

The data GPRS/GSM communication modes of data acquisition module is transferred to on-line monitoring server (3), and on-line monitoring server (3) is processed image data and data are sent to user's processing module (6) by data transmission module.

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