Weak current engineering is a classification of power application. According to the intensity of power transmission, power applications can be divided into two categories: strong electricity and weak electricity. I'll share the weak current construction scheme with you. Welcome to read and browse.
I. Design objectives
1) The principle of one-time planning, phased acceptance, moderate advance and economy.
One-time planning: the overall planning should focus on the overall situation, have a sense of being ahead of time, foresee the development of tomorrow as much as possible, and leave enough room. The scheme planning and design emphasizes integrity. In computer network design, the advanced nature of the network is emphasized. The core equipment of the network is the most functional and technologically advanced equipment, and the network design is in place at one time.
Phased acceptance: the overall planning objectives are implemented step by step, and phased acceptance is realized item by item. In terms of integration, on the basis of the general plan and the one-time plan of the supervisor, it will be implemented in stages, and the principle of completing one acceptance and one acceptance will be formulated.
Moderately ahead: In terms of system selection, analyze and compare various mainstream systems in the market, and choose the system with advanced technology that may become the mainstream in the next year or two as the implementation system of this project.
Economical and applicable: choose the first floor system that can realize the integration of all weak current systems in the building, with less investment, reliability and practicality. It is a compact, advanced and applicable system for this user, which fully embodies the personality of the general office of the provincial government. For subsystems that can achieve the same function, the most economical and practical system selection and configuration are determined after careful analysis and screening.
2) Application system comes first, and management system comes second.
3) The principle of reasonable design.
The system mainly includes 12 subsystem:
1. computer running platform system
2. Computer network system
3. Integrated wiring system
4. Video on Demand System
5. Electronic conference room system
6. Satellite and cable TV systems
7. Construction equipment management automation system
8. Security system
9. Computer room project
10. Computer shielding room project
1 1. Intranet website and information resource database system
12. Computer information network security system
Second, the project characteristics
Generally speaking, information technology-the supporting technology of information system engineering. Information technology refers to the generation, transmission, reception, collection, retrieval, detection, distribution, processing, transmission and application of various information such as voice, data and images. Information technology is an integral part of information science. The research contents of information science include: the concept and essence of information (philosophical information theory), information measurement and transformation (basic information theory), information extraction method (identification information theory), information transmission method (communication theory), information processing mechanism (intelligence theory), information regeneration theory (decision theory), information adjustment principle (cybernetics), and so on. Generally speaking, information technology includes: information acquisition technology, information transmission technology, information processing technology, information retrieval technology, information storage technology, information display technology and information security technology.
The specific technology is introduced as follows:
1, computer technology is an important technology in information processing technology. Through the comprehensive processing of information such as voice, text, data and images by computer, people can obtain more complete and intuitive comprehensive information;
2. Communication technology is an important part of modern information technology, and the essence of communication is to transmit information quickly and accurately. Communication technology is developing rapidly in the direction of digitalization, broadband, high speed, intelligence, integration and networking.
3. Computer network technology is the product of the close combination of modern computer technology and communication technology. It is a system that uses communication equipment and lines to interconnect multiple computer systems with different geographical locations and independent functions, and realizes information transmission and information sharing with the help of fully functional software.
4. Integrated wiring technology is to integrate (or combine) the wiring of all telephone, data, graphics, images and multimedia devices into a standard wiring system, that is, this wiring integrates all telephone, data, graphics, images and multimedia devices into an integrated wiring system. The compatibility, usage and intermodulation performance of various information systems are realized.
5. Software engineering technology is an engineering technology that guides the development and maintenance of computer software. It is based on the application principles of computer science, mathematics and management science, and draws lessons from the principles and methods of traditional engineering to create software with improved quality and reduced cost. Among them, computer science and mathematics are used to build models and algorithms, engineering science is used to formulate standard design paradigms, evaluate costs and determine trade-offs, and management science is used to manage plans, resources, quality and costs. The methods, tools and processes of software engineering constitute the three elements of software engineering.
6. Multimedia technology is to diversify the production and dissemination of information media, that is, information forms that can be produced and disseminated by one system, such as sound, text, data, graphics and images. Another significance of multimedia technology is to use a variety of information carriers, such as optical disks and hard disks, to store information.
7. TV monitoring technology includes the layout of cameras and supporting equipment, the selection of camera lenses and monitors, the selection of main equipment, the matching of video selection and control requirements, the selection of signal transmission mode, the selection of power control mode of system front-end equipment, circuit layout, system security and other technologies.
8. The application of control network technology in intelligent engineering can realize real-time data management and operation process control of mechanical and electrical equipment through control network communication. It can realize remote monitoring, data acquisition and safety alarm management of electromechanical equipment in intelligent buildings. Improve the control and linkage structure of heterogeneous network environment such as building automation system and security system in intelligent buildings. Enhance the usability and maintainability of the building.
9. Video-on-demand implementation technology is a video distribution service controlled by users, which enables each user to interactively access the program source stored on the remote server.
10, computer grounding technology: The grounding of various professional systems in intelligent system engineering focuses on the anti-static grounding and electromagnetic shielding grounding of system working grounding and computer room.
1 1. Information security technology can prevent information from being widely threatened, ensure business continuity, minimize business losses, and maximize investment returns and business opportunities. Here, the characteristic of information security is to keep the following characteristics:
(1) confidentiality: ensure that information can only be accessed by authorized persons;
(2) Integrity: protecting the accuracy and integrity of information and processing methods;
(3) Availability: Ensure that authorized users can access information and related assets when necessary.
3. Construction steps
The supervision work is carried out in stages, so it is described in stages below.
1. the first stage-the preparation stage of the project:
Prepare bidding documents according to the owner's intention;
Participate in the overall design of weak current system, evaluate the overall scheme of the system, and conduct technical inspection for the owner;
Conduct equipment selection, technical and performance evaluation of the schemes and equipment of various manufacturers participating in the bidding, write evaluation suggestions and summarize evaluation data;
Assist the construction party to establish a supervision and management mechanism for weak current general contractors and construction and installation units;
Assist the owner to formulate the implementation plan and quality assurance workflow of the weak current system project to ensure the quality and progress of the project.
1. Phase II-Equipment Procurement Phase
Participate in contract negotiation, improve contract terms, and check the technology and price of the project owner;
Review the system configuration and equipment purchase list of suppliers (system integrators);
Review the system integration scheme and system construction plan;
Review the weak current subsystem scheme and subsystem construction plan;
Supervise and check the arrival progress of supplier equipment. If it fails to arrive on time, it shall be handled in accordance with the breach clause of the relevant contract;
1. The third stage-weak current system construction stage
Assist the owner to coordinate and manage the joint review of weak current system construction drawings; Assist the owner to approve the construction progress;
Assist the owner to coordinate and manage the technical disclosure of weak current system;
Assist the owner to coordinate and manage the cooperation between weak current system and civil engineering and equipment installation company;
1. Stage IV-Equipment Arrival Acceptance Stage
Assist in making equipment arrival acceptance plan;
Assist to check the equipment arrival acceptance form;
Assist in supervising the arrival acceptance of equipment, carry out item-by-item acceptance according to the equipment list, assist in checking the appearance of equipment, and approve the configuration, quantity, random data, media and its version. If there are any problems, submit a written report to the owner for handling according to the relevant contract terms;
Assist in making equipment acceptance report and countersign it.
1. Stage 5-Equipment installation and commissioning stage
Establish standards and specifications for the installation and acceptance of systems and equipment.
Formulate the debugging and assessment outline of weak current system, so that it can reach the technical indicators and performance in the corresponding design scheme;
If the equipment can't reach the predetermined technical index performance or can't meet the standards and specifications for system and equipment acceptance; If it still fails to meet the predetermined technical indicators or the standards and specifications for system and equipment acceptance, it needs to be debugged again; Submit a written report to the owner and deal with it according to the relevant contract terms;
Responsible for writing memoranda of major events.
1. Stage VI-System Integration Stage
Assist the owner to make the debugging plan of the integrated system platform;
Participate in the joint debugging of subsystems;
Assist in the trial operation of the assessment system;
Assist the owner to organize, coordinate and solve key technical problems in system integration.
Be responsible for compiling memoranda of major events and putting forward operation evaluation reports.
1. Stage 7-System Acceptance
Assist in drafting the acceptance outline of weak current system;
Assist in the implementation of supervision system acceptance;
Collect the system acceptance report;
Assist to organize the documents of the whole project.
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