Design and analysis of weak current intelligent system in intelligent building

The intelligentization of weak-current electricity in construction projects can effectively improve the operating quality of weak-current equipment. Thanks to the development of intelligent technology, various weak-current infrastructures in residential areas have been gradually established, forming a sound and complete intelligent service. In order to ensure the full play of weak-current intelligence, it is necessary to strengthen the management of weak-current intelligent construction and subsequent operation and maintenance, and thus improve the overall level of weak-current intelligence.

1. The connotation of weak current intelligence

Compared with strong electricity, weak current mainly refers to the safe voltage within the control range of the national power grid, as well as low-voltage electricity. The specific standards are usually: DC is lower than 24V, and AC is less than 36V. With the development of modern intelligent technology, weak current is also gradually becoming intelligent and advanced, including: communication automation, building automation, fire automation and security automation. The actual application of building engineering systems includes: fire protection system, communication system, etc. The intelligence of weak current is the result of the continuous development of modern automation and intelligent technology, which can gradually promote the intelligent construction of electrical systems in building engineering and improve the intelligent level of building engineering operation.

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2. Design and application of intelligent weak current in construction engineering

1. Survey on the demand for weak current intelligentization. The construction of weak current intelligentization cannot be completed in one step. It requires a specific and systematic process. It needs to be gradually implemented according to the characteristics, functions, objective needs, and capital investment of the building. Before the actual construction of weak current intelligentization, a good investigation should be conducted to analyze the internal needs of the entire power system. Among them, it is necessary to focus on asking electricity users and the future needs for weak current use, and then invest and construct accordingly. Scientific planning and active construction will create an economical, advanced and scientific weak current intelligent system to give full play to the advanced role of intelligent technology.

2. Intelligent design. According to the previous survey of weak-current intelligent demand and the development of intelligent equipment and technology in the market environment, it is necessary to let technical personnel with certain qualifications be responsible for intelligent design. The key to the intelligent design of weak-current system is to start from several key points: suitable system structure, scientific line distribution, reasonable allocation of equipment, etc. Each link needs to select professional and specialized designers to conduct centralized analysis and design. Coordination, collaboration and communication should be strengthened between various links. At the same time, weak-current intelligent design should be carried out according to the structural characteristics of the building project and customer service needs. It is necessary to clearly define the conditions required for the design of each link and the operation of the system, coordinate and communicate well with ordinary designers, and design the weak-current intelligent drawings accordingly under the conditions of system operation.

3. Intelligent application of weak current.

(1) TV signal distribution system The intelligence of TV signal distribution system is mainly reflected in the use of micro TV receiving system, which improves the quality of TV signal reception, is not restricted or affected by geographical terrain conditions, topographic conditions, etc., and has a strong signal strength.

(2) Security system monitoring and management are indispensable in intelligent building projects. The so-called monitoring system generally relies on the installation of cameras and related monitoring facilities to monitor the safety of a building complex or a community as a whole. It has the characteristics of being advanced and scientific. The system can transmit clear pictures and can automatically monitor the community around the clock, dynamically grasp all information inside the community, and thus provide evidence for the occurrence of security problems.

(3) Intelligent fire protection system The development of intelligent technology is promoting the automation and intelligence of fire alarm systems in construction projects. According to specific specifications, automatic fire monitoring equipment is installed in the fire control command center to conduct fully automated monitoring and supervision of the community. Specific intelligent equipment is: smoke detectors are generally installed in corridors and terraces in public spaces of buildings. Underground garages are usually equipped with temperature detectors to give full play to the automatic sensing and monitoring functions of these detectors. At the same time, automatic alarm equipment is installed inside the building space, and gas detection equipment is also installed inside residential buildings. These intelligent sensing devices usually have more sensitive sensing functions and can automatically sense changes in external temperature, smoke, etc., so as to issue alarm signals in time to achieve automation and intelligence of fire protection.

(4) The license plate recognition system is equipped with an automatic recognition device at the entrance of the community. The license plate number, entry and exit time, etc. of the vehicles in the community are input, and a relationship is established between the automatic recognition device and the barrier machine to achieve automatic recognition of the license plates of vehicles in the community. When an external vehicle enters, it can automatically sound an alarm and close the community gate, thus saving the time of swiping the card and eliminating the trouble of card recharge.

3. Design of weak current system of intelligent building

In the weak current system of intelligent buildings, integrated wiring is a very important link. The computer network system and modern communication of intelligent buildings are realized through integrated wiring. In the public broadcast paging system, security system, multimedia conferencing system and other systems of the weak current system of intelligent buildings, integrated wiring also plays a very important role.

(1) Public broadcast paging system. The public broadcast system is mainly responsible for delivering news information, entertainment information, and emergency information to people. The public broadcast paging system is an indispensable part of intelligent buildings. When designing a public broadcast paging system, it must be ensured that it has two basic functions: emergency broadcast and playing music for people. Among the many functions of the public broadcast paging system, the emergency broadcast function is the most important one. When encountering an emergency, the emergency broadcast master controller can be triggered in time and start the emergency broadcast function of each partition, so that people can understand the environment they are in. If a disaster occurs, it can guide people to self-rescue, thereby reducing casualties. In daily work, each partition of the public broadcast paging system can operate independently. If there is no broadcast information, some music can be played for people to cheer them up.

(2) Security system. In intelligent buildings, the security system is an important part of the weak current system. The security system is mainly composed of the anti-theft alarm system, monitoring system, access control system, electronic patrol system and other parts. The most important of these systems is the monitoring system. The main function of the monitoring system is to monitor the surrounding environment of the building, the main internal passages, building elevators, offices, etc. If theft occurs in the building, the monitoring system can provide video footage to the public security department, which can effectively reduce the incidence of theft. Since different buildings have different functional characteristics, when designing the building security system, it is necessary to select reasonable cameras according to the actual situation to give full play to the functions of the cameras. At the same time, in order to ensure the practicality and accuracy of the system recording, a digital hard disk recorder can be selected. This recorder can record 24 hours a day and also has the functions of display and playback. The anti-theft alarm system plays a very important role in the internal security of the building. It can provide people with timely and effective security information. In the design of the weak current of intelligent buildings, the anti-theft alarm system can be designed by infrared beaming on the wall. In this way, an alarm can be issued in time after theft occurs.

(3) Conference system design. With the rapid development of social economy, people's communication methods have also changed greatly. At the same time, many conference equipments are also developing in the direction of networking, efficiency, convenience and multimedia. In the weak current system of intelligent buildings, conference systems are becoming more and more important. Many conference systems are equipped with multimedia video systems and hand-in-hand recall pronunciation systems, which greatly meet people's needs. When designing a conference system, designers should reasonably design the sound reinforcement system according to the conference environment. Only in this way can the normal operation of the conference system be guaranteed. Generally speaking, when designing a sound reinforcement system, it is necessary to consider both building sound and sound reinforcement. At the same time, designers should carefully analyze the absorption, diffusion and reflection of sound to ensure the rationality of the sound reinforcement system. In recent years, more and more conference systems have added multimedia video systems. Multimedia video systems are mainly composed of electronic whiteboards, physical display stands, video conversion equipment and other parts. When designing multimedia video systems, designers must comprehensively consider the positions of audio and video sockets, conference tables, etc., so as to ensure the smooth implementation of two-way communication in network video conferences.

(4) Precautions for designing weak-current systems of intelligent buildings. Designing weak-current systems of intelligent buildings is a systematic task. At present, there are still many problems in the design of weak-current systems of intelligent buildings in my country. On the one hand, there is a lack of scientific configuration when designing weak-current systems of intelligent buildings. On the other hand, the selected technology cannot meet the relevant standards. In order to effectively improve the design quality of weak-current systems of intelligent buildings, designers must adhere to the principles of advanced technology, economic rationality, seeking truth from facts, stability and reliability when designing weak-current systems. Only in this way can the service life of the weak-current systems of intelligent buildings be extended and the functions of the weak-current systems of intelligent buildings be fully utilized.

IV. Conclusion

The design of the weak-current system of intelligent buildings is a complex project, which involves a wide range of aspects and has high technical requirements. Therefore, designers start from reality, carefully analyze various influencing factors, make good design preparations, and design a scientific and reasonable weak-current system for intelligent buildings.