Summarize the problems and solutions in the weak electricity project
Summarize the problems existing in the weak electricity project, as well as the means of solution. In the process of doing the project, only after continuous summarization can the experience be accumulated quickly.
Weak electrical engineering problems
The construction of weak electricity project can be divided into three stages, one: the design stage; the second: the construction management stage; the third: the system acceptance stage, which is described as follows:
Program design phase
1. The understanding of international and domestic standards is not deep enough to be designed according to standards;
2. No feasible planning and design based on the characteristics of the project;
3. In the process of designing the program, the depth of understanding of each subsystem is not enough, and there is no technical selection and brand preparation work;
4. It is difficult to carry out research work according to the actual business function requirements in the initial stage of construction;
5, advanced design concept, the realization of new technology and new standards, the technical requirements of weak electrical engineers are higher.
6. The requirements for the layout of each subsystem are not clear, and continuous optimization cannot be achieved; 
Construction management stage
1. Insufficient engineering experience of the general contractor for weak electricity projects;
2. The weak electricity general contractor unit failed to produce a deepening design and construction plan;
3. The project manager's ability and responsibility are not enough. The project schedule, quality and cost are not well managed.
4. Failure to strictly follow the requirements of the drawings, lack of experience in standardization management of various subsystems, including construction plans, construction techniques, equipment and facilities, materials and supplies;
5. The definition of the construction interface of the weak electricity general contractor and other professional construction units is unclear, and the project construction plan node control ability is insufficient;
6. During the construction process, the cooperation of various professions is not tacit, resulting in repeated operations.
System acceptance phase
1. Some subsystems cannot meet the standard of use during the trial operation, and are accepted according to the standard;
2. Failure to do a good job in data delivery and system use training after acceptance of each system;
3. Failure to understand the installation status of each system field device.
Specific details
1. The location and quantity of each subsystem equipment are not in accordance with the design plan or the actual situation;
2. The position of the weak electrical equipment does not match;
3. The construction period management and equipment supply cycle control are not strictly implemented as planned;
4. The network configuration process involves technical configuration refinement;
5. The problem of functional testing of each subsystem is up to standard;
6. Debugging specification problems in the joint debugging process;
7. The coordination of construction order involved in specific multi-party construction.
Affect the quality of weak electricity engineering
1. Construction standard system
Detailed reference to international and national standards and regulations for each subsystem
2. Design of weak electricity engineering scheme
The overall design level of weak electricity engineering affects the goal of building smart projects, including the choice of cutting-edge technologies such as information, network, communication, and computer, as well as the control of investment in weak power projects and the evaluation of investment efficiency. According to a large number of examples, investment decisions are preliminary. At the end of the design phase, the degree of project cost is about 75%, and the construction drawing design is completed until the project is completed.
3. Weak electricity construction management
After the design of the weak electricity plan is completed, after the weak power contractor is determined through bidding, the design goal of the plan is to be the core work of the weak electricity construction management. The quality of the work directly affects the future intelligent application effect.
The management of weak electricity projects mainly includes three main aspects: construction schedule control, construction quality management, construction cost management, etc. At the same time, it is necessary to establish a site organization management mechanism for the project manager responsibility system, and also requires third-party management units to formulate, implement, inspect, and periodically Do a good job in management confirmation for analysis, project increase and decrease, etc.
4, after sales service
After acceptance according to the design plan and project acceptance procedures, it is necessary to do a good job in training, use and management responsibility of each system, monitoring the operating environment conditions of each subsystem, upgrading and managing each subsystem, etc. If the responsibility is unclear, the task is unclear. Will also affect the end use effect.
Method for improving the quality of weak electricity projects
Program design phase
At the beginning of the design of the scheme, in addition to the reference to international and domestic standards, and the formulation of the guidance plan, it is necessary to select appropriate technologies according to the actual needs of the weak electricity project to meet the current and future functional requirements, and formulate a weak electricity project construction plan.
1. Several major elements of weak current scheme design
(1) Analysis of weak electricity engineering needs
Only by clarifying the needs of weak electrical engineering can we design an overall weak electrical engineering solution based on the demand list.
(2) Technical selection
The core point of the weak current engineering scheme is to select technologies according to the life cycle of each system, including the choice of overall network architecture, multi-physical link fusion, cloud computing, etc., as well as the research of software and hardware vendors and the production of brand recommendation tables. After selecting the above various work contents, we can formulate standardized weak electricity engineering solutions according to this, select powerful and experienced weak electric engineering contractors, unify bidding, and adopt appropriate evaluation methods. Choose a weak power supplier to complete the weak electricity project.
(3) Principles of each subsystem layout
All sub-systems of weak current engineering need to specify requirements for terminal location, number of points, and required conditions, such as integrated wiring system, computer network system, wireless network system, access control system, video surveillance system, integrated information release system, etc. The location, quantity and implementation methods have a profound impact on the power, switch, pipeline engineering, etc., so it is necessary to formulate the layout principle of each subsystem according to the relevant national standards and the actual functional division and needs of the project; As an example, for each additional invalid information point, the pipeline resources, exchange resources, matching condition resources, construction costs, etc. are nearly 1,000 yuan. If the information is set, there is no arrangement, although the subsequent steps can be solved wirelessly. However, in some core locations and functions, the wireless solution still has certain deficiencies; for example, the security system, the layout principle solves the density of the distribution points and the location of the distribution points, and refers to the standards set by the state, and carries out the principle of the layout of each subsystem. Refine, guide the point placement of each system, and Paper language description.
Construction management stage
1. Implement the responsibility of the project manager;
2. The transformation of the construction drawing of the design plan drawings and the establishment of the drawing language communication mode during the construction process;
3. Continuous optimization of various layout principles in the construction process;
4. Execute construction supervision according to the weak electricity project plan, including not limited to product brand change, process procedure specification, construction process management, and work interface division.
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