Coal Mine AI Video Analysis System

The Coal Mine AI Analysis System is an intelligent monitoring and identification system. It is based on the coal mine surveillance system and utilizes AI image recognition algorithms as its core. The system conducts real-time monitoring and identification of personnel, equipment, environment, processes, vehicles, and maintenance within the coal mines. It includes functionalities such as vehicle and pedestrian detection, violation of rules identification, area intrusion detection, large coal and foreign object recognition, conveyor belt idling and misalignment detection, and smoke and fire recognition, meeting the application needs of various scenarios in the coal mining industry.

The intelligent video AI analysis system adopts a front-end processing approach, embedding the algorithms directly into cameras. It can interact with other devices through switch quantity and Modbus TCP/RTU. The alarm results and video streams can be directly uploaded to the data platform via a ring network. The advantage of front-end algorithm processing: Since the AI algorithm is embedded in the camera, the video data is analyzed where it is collected, with the process completed within the camera itself. The analysis results are uploaded to the central server. This is distinctly different from back-end processing, as the original video does not need to be uploaded to the server first. The system can continue to operate normally even during network disruptions, and once the network is restored, it can resume uploading alarm information to the server, effectively solving issues related to network delays and disconnections.

Industrial Computer and Supervisory Control Software: Features video squares, video retrieval, electronic maps, video playback, device management, user management, alarm inquiry, AI intelligent analysis, configuration center, and plugins, supporting web browsing. 

1.Video Fusion Platform
The video management service supports encoding devices connecting to the platform via various protocols such as Hikvision Device Network SDK, Hikvision Ehome, Hikvision ISUP5.0, GB28181, ONVIF, Dahua Device Network SDK, and Ezviz. This setup enables capabilities like real-time video preview, video playback, video walling, and video event monitoring. In networks with limited bandwidth or traffic restrictions, the system can offer monitoring services by substituting videos with images.

The platform is highly compatible, able to cover nearly all video surveillance devices on the market, which is advantageous in scenarios that utilize existing equipment. During project implementation, the system is integrated into the entire network using existing resources without needing extensive equipment replacement. This not only simplifies the system implementation process and reduces complexity, but also significantly lowers system investment costs and reduces the effort needed for management and maintenance.

The main interface of the video fusion platform includes features such as a device tree, system resource usage, multi-screen display, and alarm events. Backend management features include a video square, video retrieval, electronic map, video playback, device management, user management, alarm query, AI intelligent analysis, configuration center, and plugins, all designed for simple deployment and ease of operation.

2.Front-End Video Analysis
The front-end video analysis is conducted using mining intrinsically safe image processing cameras equipped with front-end AI analysis capabilities. Algorithms embedded directly in the cameras allow for immediate analysis of the footage, effectively eliminating any latency, which is particularly critical for situations requiring swift responses. The cameras output standard signals such as switch quantity, RS485, and TCP protocol, facilitating direct integration with other devices. This setup effectively resolves issues related to network delays and disconnections. Moreover, alarm results and video streams can be directly uploaded to the data platform via a ring network, ensuring reliable and prompt communication of critical information.

3.High-Definition Video Surveillance
Explosion-proof and intrinsically safe cameras enable real-time monitoring of both surface and underground work sites, with centralized displays in locations such as control rooms or hoist rooms. This facilitates production scheduling, online hazard detection, and emergency response operations.

4.Hard Disk Recording
Uses various methods to record surveillance footage, featuring manual recording, scheduled recording, voice alarm, alarm recording, and motion detection recording. It includes access control management and operation log functionalities.

5.Storage Function
After a system power outage or shutdown, all system data, user settings, and operation logs are maintained without loss for at least 7 days. Upon re-powering, the system should restore to the state it was in before the power loss or shutdown.

Control Devices

(1)KTC169.1 Mining Explosion-Proof and Intrinsically Safe Communication Controller: Composed of Siemens' new S7-200 Smart series PLC, digital expansion modules, communication modules, etc. It is equipped with a 7-inch LCD display that can show the operational status of the device, protection information, etc. It features functions such as dialing, communication, voice alarms, and is integrated with mining intrinsically safe image processing cameras for linked control.

(2)ZSJ127-Z Mining Explosion-Proof and Intrinsically Safe Image Monitoring Alarm Control Device Host: Primarily used as the image analysis host for front-end AI cameras, it collects real-time data on environmental fires, whether workers in the area are wearing safety helmets, unauthorized entry into hazardous areas, and the real-time status of coal flow on conveyor belts. It displays this information in real-time, promptly issuing alarms and interacting with equipment during anomalies, which aids in safety management. This setup is particularly convenient for use in underground field settings, effectively addressing the limitation where AI image analysis can only be configured and viewed remotely via a supervisory control platform, previously making it impossible to perform fault analysis directly at the work site.

(3)KBA12S Mining Intrinsically Safe Image Processing Camera: Utilizes front-end AI video analysis to assess images captured for any intrusion activities. It can interface with devices via switch quantity and Modbus TCP/RTU to activate onsite warning and reminder systems. The camera also features voice intercom, real-time monitoring, and recording capabilities.

(4)KBA12S(C) Mining Intrinsically Safe Image Processing Camera: Employs front-end AI video analysis to determine if there is an open fire from the captured images. It can interact with other devices via switch quantity and Modbus TCP/RTU, facilitating coordinated responses. The camera is equipped with voice intercom, real-time monitoring, and recording capabilities.

(5)KBA12S(B) Mining Intrinsically Safe Image Processing Camera: This camera uses front-end AI video analysis to assess captured images and determine whether workers in the detection area are wearing safety helmets. It can interact with other devices via switch quantity and Modbus TCP/RTU to activate on-site warning and reminder systems. The camera also features voice intercom, real-time monitoring, and recording capabilities.

(6)KBA12S(A) Mining Intrinsically Safe Image Processing Camera: Utilizes front-end AI video analysis to evaluate captured images for assessing the operational status of conveyor belts, belt misalignment, and coal flow. It can interface with other devices to adjust belt speed via Modbus TCP/RTU. Additionally, the camera features voice intercom, real-time monitoring, and recording capabilities.

 

(7)KDW127/12 Mining Sealed and Intrinsically Safe Direct Current Stabilized Power Supply: This power supply features dual overcurrent protection, dual voltage limiting, and short-circuit protection. It is compact and lightweight, making installation and relocation convenient. It is suitable for providing power to various types of mining intrinsically safe equipment.

(8)KJJ18 Mining Intrinsically Safe Switch: This switch enables devices connected to it to exchange data with surface operations, facilitating remote control and monitoring. Surface computers can manage devices underground that are connected to the switch, allowing the network computers to retrieve data information and control management of related underground equipment through the switch. It features a built-in embedded switch, three gigabit fiber ports, four hundred-megabit fiber ports, and three electrical ports. The switch's rate meets the long-term development needs of network transmission. It supports simultaneous access of video, voice, and data, and possesses various network parameter management capabilities.

(9)XB127 Mining Explosion-Proof Monitor: This monitor is used in coal mines where continuous monitoring is necessary underground. It receives 16 channels of video signals, which connect to the monitor's internal optical receiving module. The signals are then converted into video electrical signals and fed into the monitor's internal digital video recorder. The system synthesizes a composite video image that displays all 16 video feeds simultaneously on the monitor.

(10)XH12 Mining Intrinsically Safe Monitor: This monitor features a 24-inch color LCD display and is equipped with one Ethernet electrical signal interface and two Ethernet optical signal interfaces. It can display both black and white and color video images. The system is capable of displaying and recording eight channels of network video signals simultaneously and supports single-channel or multi-channel playback. Additionally, it can be networked with other computer systems or alarm systems to facilitate long-distance transmission and remote viewing of video records.

(11)KBA12H Mining Intrinsically Safe Infrared Camera: Primarily used for underground video monitoring in coal mines, it features an Ethernet optical signal output interface. External light enters through a glass window and is focused onto the camera's CCD chip by the lens. The CCD then converts it into an Ethernet optical signal for output. The camera can clearly view objects in low light conditions, down to a minimum illumination of 0.05 Lux, and converts the captured real-time images into Ethernet optical signals for output. The camera operates at a rated working voltage of DC12V and includes two SC-type interfaces, TCP/IP Ethernet optical signal transmission.

(12)KBA127(A) Mining Explosion-Proof PTZ Camera: This camera uses a variable magnification CCD solid-state imaging device and is controlled via Ethernet TCP/IP protocol commands for pan and tilt movements, as well as adjustments to the lens's aperture and focal length. The device features an auxiliary light source, providing low illumination yet high clarity, and the PTZ (pan-tilt-zoom) is controllable. The camera's rated working voltage is AC127V, and it includes one SC-type interface, TCP/IP protocol optical signal transmission, single-mode fiber.

(13)KBA12(A) Mining Intrinsically Safe PTZ Camera: This PTZ camera is a critical device within the coal mining industrial television system, used for real-time image monitoring of main production processes, important equipment, and key positions. The camera can clearly see objects in low light conditions as low as 2 Lux and converts the captured real-time images into Ethernet photoelectric signals for output. It features PTZ capabilities and voice playback functionality. It is primarily used in underground coal mines where there are risks of methane and coal dust explosions.

(14)KBA12 Mining Intrinsically Safe Camera: Primarily used in underground coal mines where there are risks of methane gas and coal dust explosions. This camera is a key device within the coal mine video surveillance system, designed for real-time image monitoring of main production processes, important equipment, and crucial positions. The camera integrates both a video camera and a microphone within an explosion-proof housing; it is mainly used in conjunction with electro-hydraulic control support systems, and for monitoring mobile, manned, and material transport vehicles.