1. Project Purpose

The Tower Security System is required to protect critical 150 kV transmission towers that supply electrical power from the Power Plant to Batu Hijau’s Mine, Process Plant, Townsite, and auxiliary facilities. The system is intended to prevent theft, vandalism, and unauthorized access through an integrated security solution to provide continuous monitoring, deterrence, and early warning.

Ø  In the case of visualization, leaders or supervisors can check whether the operation process is standardized or violated without going to the site.

Ø  Unexpected power outage maintenance, you can check the scene situation through real-time video, and keep the data on file

Ø  Realize visual monitoring of transmission lines

2. Solution

The application image/video surveillance equipment/with expansion module is installed on the tower, and the line channel environment is obtained in real time through wireless bridge communication technology. Using image processing technology-based automatic warning of foreign body intrusion(including recognition of smoke, fire, and personnel), intelligent identification of hidden danger types and other line visual protection technologies, timely early warning of external damage hidden dangers in line passages. The early warning information is fed back to the line inspectors in real time to eliminate hidden dangers in a timely manner, and establish an efficient visual protection of transmission and distribution lines that integrates human defense, physical defense, and technical defense systems.

The intelligent visual inspection system for power transmission and distribution lines adopts information technology means such as visual monitoring, intelligent image analysis, equipment information management, hidden danger management, directional group sending of short messages, and mobile APP to receive the on-site situation at the first time and provide solutions. Minimize the operation and maintenance costs of manpower and material resources, and realize the visual real-time monitoring and management of channel hidden dangers. Focus on preventing off-line construction, wildfires, trees, short circuits of foreign objects, bird damage human-body monitoring (can prevent human theft and damage to the tower material) and other external damages, and build a three-level inspection system that combines professional, regional, and public protection. Using modern intelligent online monitoring methods, back-end data analysis and comparison are carried out according to the types of hidden dangers in the channels. Transmit data to professionals in a timely manner to realize intelligent management of power grid, equipment, personnel and hidden dangers in the whole process of visualized operation and maintenance.

Transmission and distribution lines channel visual operation and maintenance management system target system

The main workflow of the visual operation and maintenance management of transmission and distribution line channels is as follows: the staff finds the hidden danger of external force damage to the channel during the daily inspection and centralized hidden danger investigation, professional management personnel verify and confirm on the spot, and install the visual monitoring device at the hidden danger point to monitor the hidden danger situation in real time and collect data. In order to further support professionals' ability to identify potential types of hidden dangers and better arrange various disposal work on site, the intelligent server in the background integrates functions such as visual monitoring module, image intelligent analysis module, equipment information management module, and hidden danger management module, and collects a large number of channels. Operation and maintenance information can realize multi. 

2.1 AI Functional Verification

The main products are intelligent analysis software products and their advanced applications, mainly including intelligent applications such as channel hidden danger target detection, fire recognition，smoke recognition bird damage recognition, human body recognition and construction machinery recognition. In addition to background analysis, they all support edge computing for related functions, empowering front-end devices with intelligence.

2.1.1 Types of image intelligent recognition

The identification types are as follows:

(1) Construction machinery intelligent early warning module: Realize intelligent identification, early warning and push functions for common construction machinery, such as excavators, fixed cranes, mobile cranes, bulldozers, pump trucks, etc.;

(2) Pyrotechnic intelligent early warning module: realize intelligent identification, early warning and push functions for open flames and dense smoke;

(3) Foreign object intelligent early warning module: realize the intelligent identification, early warning and push function of foreign objects hanging on wires, insulators, and iron towers; for example, AI recognition of kites.

(4) Micro-meteorological data acquisition module（optical）: realize automatic acquisition of data such as temperature, humidity, wind speed, air pressure, wind direction, precipitation, etc. near the tower;

(5)Human identification around towers and transmission lines: can effectively prevent human theft and damage to tower materials

Construction machinery                Thick smoke, wildfire

Wire foreign matter                     Personnel activities

Night recognition                       Missing insulator

 Ice cover detection(optical)               Infrared thermal imaging(optical)

Line galloping detection(optical)           Image defogging processing

                       Human body recognition

2.1.2  Edge computing

Intelligent Analysis Module       AI intelligent analysis Algorithm

The edge IoT intelligent terminal supports the edge gateway function, and has a built-in front-end intelligent analysis module to support edge computing and analysis. It can intelligently analyze the collected pictures and the state quantities of each sensor, complete the preliminary early warning of the risk identification of the line channel environment, tower body, and fault information locally, and transmit the alarm signal to the background for further analysis and processing. At the same time, it supports algorithm upgrade, saves channel bandwidth and background server computing power, improves the reliability and efficiency of fault early warning, and realizes strategic fault monitoring.

2.2  Platform function

The system is a B/S architecture, providing a variety of standard interfaces for easy use and data exchange.

The main functions are as follows：

1.Line channel visualization：The combination of maps and charts fully displays device distribution, line operating conditions, asset operation and maintenance, etc. Big data reports can be exported with one click, and main functions can be reached with one click.

2. Click any thumbnail to enter the corresponding device operation interface.

A total of 10 pictures are displayed and arranged in reverse chronological order. It has the functions of historical photo browsing, channel information browsing, WeChat push, active photo shooting, short video shooting, quick switching of adjacent devices or lines, and quick return.

3. Device distribution visualization: locate the front-end device position and realize the visualization of monitoring point distribution.

4. Query statistics: Provide a variety of statistical information, including: historical photo query, alarm information record, device manufacturer, access rate, integrity rate statistics, etc.

Daily photo query, all or conditional query can be carried out according to diversified conditions such as power supply company, line, tower, device, and shooting time period. Provide photo download function.

5.     Picture patrol: All patrols and early warning patrols can be performed, and conditional patrols can be performed according to various information such as routes and key groups. The patrol speed, screen layout, etc. can be freely set. It can directly take active photos and WeChat push. Quickly and intuitively patrol the latest situation of each monitoring point and deal with it directly.

6. Manual inspection: Combined with the manual inspection plan of the power supply company, it has the functions of issuing tasks, tracking personnel trajectories, and performing inspections.

2.3  Mobile Visual App

Currently, SENTER's mobile visualization app is available for both Android and iOS devices. The app's functionality is similar to the platform's basic features, primarily allowing users to view images, videos, alarm information, and view live video function.

 Technical Parameters：

Option table:

4. Project Necessity

The line channel environment is complex and diverse, covering many transmission line application scenarios, and its importance is beyond doubt. In order to better realize the application of the ubiquitous power Internet of Things in the online monitoring of power transmission and realize the intelligent management of the line, through the installation of hidden danger monitoring and early warning devices, an efficient and visual protection system for transmission lines will be created to realize real-time perception of line channels.

4.1 Security Analysis

In recent years, with the rapid development of social economy, various industries have put forward higher requirements for the quality of power supply of power companies. Matching, external force damage to transmission lines occurs frequently, which seriously threatens the safe and stable operation of transmission lines.

4.1.1 The speed of power grid construction does not match the growth rate of operation and maintenance personnel

With the construction of the power grid and the commissioning of new lines, the number of transmission lines has increased year by year, but there is a serious shortage of lean operation and maintenance of line channels and staffing.

4.1.2 There are many types of hidden dangers in transmission channels, which are difficult to manage and control

The transmission line channel stretches for dozens of kilometers, each line has nearly a hundred towers, and the external operation and maintenance environment is complex. Incidents such as construction collisions, foreign objects short-circuiting, soil excavation and piles; tree-line contradictions in sparsely populated areas, mountain fires in passages, and equipment theft also emerged one after another. While the daily inspection tasks are completed, it is impossible for inspection personnel to know the situation of each base tower, and there are inevitable blind spots in management.

4.2 Performance and Cost Analysis

4.2.1 Economic Benefit Analysis

4.2.1.1 Extend the manual inspection cycle and save operation and maintenance costs

At present, the traditional line operation and maintenance mode is mainly based on regular inspections and special inspections. The installation of hidden danger monitoring and early warning devices can gradually replace on-site inspections by means of remote inspections, reducing the outage rate and personnel's off-duty time, saving maintenance costs, and facilitating The limited operation and maintenance force is devoted to more important work.

4.2.1.2 Timely discover and stop hidden dangers of external damage, reduce line failures and economic losses

The environment of the line channel is intricate, and there are different hidden dangers of external damage at every moment. In the high-incidence area of external force damage, the frequency of image acquisition can be increased through terminal application settings, and the abnormal situation in the monitoring area can be determined in the shortest time. , and actively push the pictures of hidden dangers to the main management personnel and technical personnel in time, so as to gain more processing time for the staff and avoid accidents such as tripping.

4.2.2 Social benefit analysis

If the external force damage of the transmission line is not detected and dealt with in time, it will easily evolve into a serious accident such as a power outage, or even a tower collapse, causing serious social adverse effects such as a large-scale power outage.

Traditional inspections require high-density inspectors to inspect key areas to avoid hidden dangers of external damage. Even so, there is still the possibility of external sabotage within the time when the inspectors rush to the scene, and the purpose of real-time monitoring cannot be achieved. By installing the hidden danger monitoring and early warning device, hidden dangers can be found at the first time, and then the closed-loop treatment of hidden dangers can be completed in the shortest time through online shouting, dispatching personnel to eliminate defects, etc., effectively reducing or eliminating accidents caused by hidden dangers. .

After adopting the new visual operation and maintenance management mode of transmission lines, the background can set the on-site image acquisition frequency to a minimum of once per minute.