System summarize
　　In order to strengthen electrolytic aluminium enterprise security and improve management of production safety standards, digital production safety management system was presented. The system uses digital monitoring technology monitoring the work state of electrolytic aluminum plant key parts (such as the rectifier, primary aluminum plant, refined aluminum plant, and so on). And combining production safety evaluation system, established information management systems of electrolytic aluminum plant for the production safety real-time monitoring, forecasting and analysis.

System components
　　Information management system of production safety real-time monitoring, forecasting and analysis is mainly through digital monitoring and management of production safety component model.

1. Digital Monitoring
   　　Digital control includes far-infrared temperature measurement and closed-circuit television monitoring. The far-infrared temperature measurement mainly used in real-time inspection of transformers of the rectifier and switchgear equipment, by detecting equipment surface temperature changes in equipment to detect hidden dangers, test results will be sent to the computer, then in various ways warning after has been treated. Closed-circuit television surveillance is real-time monitoring the main production processes and production equipment operation through the installation of cameras at production site. The information will be timely sent to the office or workshop, assisting officers and production safety supervisors to correctly guide the production process.
2. Production safety management model
   　　How to quantify the electrolytic aluminum plant relevant provisions and requirements of safety regulations, establish targets and methods of evaluation, establish evaluation criteria. Including the formula, criteria and weight parameters. The establishment of safe production management model is key of the system. Thus in accordance with the electrolysis plant characteristics of the main production processes, Production the third-layer management model of the production status 、workshop 、plant.

System features
　　1. Electrical equipments of rectifier places, real-time catch monitored far-infrared thermal imaging image features.
　　2. According to the far-infrared thermal image status of the monitoring points, equipments warning function.
　　3. According to the image of the closed-circuit television monitoring system determine unwarrantable operation.

System parameters

　　1. Between far-infrared camera and tested objects the maximum distance not more than 100m
　　2. Far-infrared camera temperature detection range: normal atmospheric～200℃

　　3. Electrical equipments of rectifier places, real-time catch monitored infrared thermal imaging image features, each image frame interval can be set, minimum every 1 minute.

System key technologies

1. Multi-channel infrared thermal imaging technology
   　　The system uses specialized multi-channel image acquisition system (1 to 16), use a computer to receive information from multiple infrared cameras, be converted into a number of thermal imaging images. Faster image processing, fast algorithm in data compression, image recognition and noise reduction, use wavelet technology on the second image to achieve the multi-form infrared thermal imaging technology.
2. Image Database
   　　The system is based on the existing database technology research and development to solve the image data definition, storage and use of data models and retrieval, ensure the safety of large image file storage 、convenient and rapid use .
3. Image Analysis technology
   　　This system mainly includes planar image analysis algorithm. Firstly, the image-based gray-scale automatic threshold segmentation extracts the key monitored objectives information (Such as transformers, switchgear, etc), detects the location of target from capturing single frame infrared images. Then extracting and analyzing the characteristics of the divided target image. When the image feature of target dramatic changes, monitoring system issues a warning signal.

Summarize

　　The system is devoted to resolve the production safety issue of the electrolytic aluminum plant, At present, we are the first uses far-infrared above-mentioned in non-ferrous metals industry and effect is being appearing.