The output value of my country's coal, steel, cement, textile and electric power industries has reached the forefront of the world, but their energy consumption also belongs to the "highest" in the world. The energy consumption of its output is 3-5 times that of other advanced countries. To change this situation, one of the most effective ways is to use electronic computer security monitoring and control systems. It can not only reduce the energy consumption of production, but also make the products achieve the goals of high quality, high output and high efficiency.

With the development of computer technology, the technology of informatization and intelligentization has also been continuously improved, mainly in several aspects such as fire alarm, online monitoring, security monitoring, access control management, intelligent key cabinet, and intelligent control PDA. In order to manage the internal work of the enterprise better and more conveniently, the enterprise breaks the situation of disconnection and realizes the digital centralized supervision of the overall business of the enterprise. Through the construction of intelligent information network, the comprehensive and unified management of fire protection, safety, and information transmission of enterprises can be comprehensively improved, and remote supervision services can be provided for higher management. In some large-scale enterprises, optical fibers are directly used as the transmission medium to establish the backbone network during network construction, while the transmission medium of the internal local area network is generally copper wire, so that the local area network is connected to the optical fiber backbone network. In places that cannot be covered by Ethernet cables, the network optical fiber transceiver can be used to extend the information transmission distance, and the twisted-pair electrical signal and optical signal can be converted to each other to ensure the smooth transmission of data packets between the two networks. The transmission distance limit is extended from 100 meters of copper wire to 100 kilometers (single-mode fiber).

Extending the transmission distance through the coverage of optical fibers makes it easier for staff to browse the internal situation of the enterprise and make preparations for emergencies in time. ① Such as fire alarm system: patrol personnel find fire and press the alarm button near the fire scene or the flame control detector detects the fire and sends the alarm information to the fire warning host. The fire alarm system will automatically pop up the warning screen on the big screen. Time, location, alarm source and other information are displayed on the screen. ② Oil and gas real-time online monitoring system: The gas concentration information detected by the gas detector reaches the gas alarm controller to realize the oil and gas online monitoring function. When the gas concentration reaches the alarm value, the gas alarm controller will send out an audible and visual alarm signal, and at the same time transmit the alarm information to the monitoring center, so as to attract the attention of the on-duty personnel and take timely measures. In addition, the alarm controller can control the fan to exhaust air, cut off the valve and other operations through the actuator.

Intelligent information supervision connects subsystems with different functions physically, logically, and functionally to realize information integration and resource sharing to achieve interconnection and interoperability between subsystems.

With the rapid progress of informatization construction, people's demand for multimedia communication such as data, voice, and image is increasingly strong. Therefore, the Ethernet broadband access method has been mentioned in an increasingly important position. However, the traditional Category 5 cable can only transmit Ethernet electrical signals for 100 meters, which cannot meet the needs of the actual network environment in terms of transmission distance and coverage. Optical fiber communication has been widely used for its advantages of large information capacity, good confidentiality, light weight, small size, no relay, and long transmission distance. It solves the transmission problems of Ethernet.