Gas products GB 30720-2014 Limited energy efficiency values and energy efficiency levels for househo

Urban rail transit equipment includes: electric escalators, AFC (Automatic Fare Collection) systems, screen doors, automatic doors, vehicle air conditioning, central air conditioning, ventilation equipment, water supply and drainage equipment, fire sprinkler systems, subway vehicle traction, switch equipment, power control systems, etc. Automatic control technology, network communication technology, information management and other automation technologies have been increasingly widely applied in the field of urban rail transit, but there is still a certain gap compared to the automation level and successful experience in many fields such as construction and industry. The long length of subway lines, the special environmental conditions of underground stations, and the combination of multiple specialties and equipment and systems make the complexity and structural composition of the entire automation system different from building intelligence, and also greatly different from industrial automation systems. The subway station automation system mainly consists of station environment and equipment monitoring system (BAS), automatic fire alarm system (FAS), power monitoring system (SCADA), automatic train control system (ATC), automatic fare collection system (AFC), closed circuit television system (CCTV), public broadcasting, wired and wireless communication systems, etc. The above systems directly serve operation management. The subway systems put into operation in China are basically completely independent of the above system, which increases the burden on the entire communication network and causes serious waste of computer hardware and software resources. Due to the fine division of equipment management boundaries, the subway management and maintenance team is huge; Due to the inability to form unified management, the overall level of subway operation and management is limited. [3] The management mode equipment monitoring and management system mainly serves the dispatch and management departments of subway stations and ground control centers, so it is inseparable from the operation and management mode of the subway. 1) The decentralized management model is widely adopted in the operation and management of domestic subway systems, with each management department being basically independent and not interfering with each other. This management system is consistent with the automation solution of independent networking of the systems. This management model restricts the scientific and modern pace of subway operation management, increasing operating costs and equipment investment. 2) The improvement of domestic subway automation technology and management level in centralized management mode has fundamentally changed the concept and mode of operation management. Through institutional restructuring, the subway operation management department has begun to develop from decentralized management to centralized management. In order to meet the new management mode of the subway, comprehensive automation of the subway has gradually been promoted and applied in the subway field, and is the preferred solution for future subway automation. The goal of subway designers and managers is to achieve unmanned management, increase efficiency through personnel reduction, and reduce equipment and operating costs. However, how to build a large-scale comprehensive monitoring and management system for subways, system structure composition, and information integration methods are still being explored