【 Weak current college 】 building intelligent engineering implementation of quality control and countermeasures

1 project is building intelligent engineering success

(1) building intelligent systems in the overall design is a faucet that is intelligent building functions and comprehensive investment goals.

(2) design standards and construction specifications, procedures is the implementation of the project and engineering quality assessment basis builders.

(3) project is building intelligent engineering to the success of the design into reality, let the owners and users of dream come true.

(4) doing a project in six major sectors is essential to the success of project implementation:

Deepening the design, engineering, interface, construction and installation, System testing, System testing, system acceptance and system maintenance.

2 construction intellectualization project implementation status

2.1 existing State and local standards, specifications, procedures also cannot override normal intelligent engineering subsystems

Not only the conventional electronic meeting system, multimedia and large screen systems, card, wireless communications, and so does not have the appropriate design standards to follow, but also constantly new systems, new products and new technologies.

2.2 existing standards, specifications, procedures which have not yet been able to cover these six main areas of content

2.2.1 currently various subsystems of deepening the design content and require no uniform standards

Should be based on different characteristics and requirements of the subsystem, clearly deepening designed content, requirements, scope; clear the subsystem design interface, including integrators and architectural design and the design of the product vendor interface; various subsystems of deepening the design document composition and depth and requirements.

2.2.2 the subsystem is no uniform practice for debugging

Should clear the subsystem hardware and software debugging of monomers and systems contents, main function; test document composition and requirements, methods, projects, equipment requirements, etc.

2.2.3 specification for each subsystem testing

Existing national, local and industry regulations are established inspection cannot overwrite regular subsystem, not only in the subsystem does not override the General and examination of projects and content is not uniform. Detection methods take the apparatus and equipment not expressly request that certain unity of subsystem of third-party testing is not fully integrated into the system of acceptance of the specification requirements.

2.2.4 various subsystems of maintenance management and training no statutes

System maintenance, management and training is a long-term project implementation to achieve the ultimate goal of the project and the return on investment and guarantee of effectiveness; the current system maintenance operation and management of the vast majority of the property management unit is responsible for, there is no uniform procedures and requirements to ensure that the system long uptime; system of training content and for operators and maintenance engineers, there is no uniform requirements and evaluation criteria.

2.2.5 engineering interface determines there is no standardized

(1) engineering interface determines is necessary to open the system is the basis for system integration.

(2) engineering interface should include design materials supply interface, design interfaces, technical interface interface and interface.

(3) engineering interface involves range intelligent system and the electrical and mechanical interface between engineering, including air conditioning, power supply, lighting, elevators, water supply and drainage, diesel generators, etc. Various subsystems engineering interface between, including various subsystems, communication between the linkage involved project interface. Intelligent systems and related project engineering interface between should include communication access, wired access, overall project access, etc. Intelligent systems and civil engineering, decoration engineering interface between, including the design of the interface, construction coordination and operation of the interface.

(4) of the current project engineering interface of the main problems identified
At present most of the works of tender documents and contract documents on the scope of the project interface does not make the content detail in project implementation units of mutual influence between progress and lots of quality. On the project scope and content of the interface determination is not relative uniform specifications, including the Division of engineering interface and technical requirements.

2.3 existing standards, specifications, procedures in operability, qualitative and quantitative aspects of the existence of certain issues

A system of the same content in the national standards, local standards, industry standards in qualitative, quantitative and operational distinction should be made on the recommendations at the local standards should be operational in the first place, as far as possible be quantified according to the actual situation, facilitate specification implementation; the above standards relating to certain quantitative criteria based on insufficient, while some content in the engineering field is difficult to achieve; systems testing procedures and systems used in debugging code for testing methods, equipment and technical requirements are not clear.

2.4 standards, specifications, code enforcement is not big

Due to the current national scope, content, qualitative and quantitative and operational aspects of certain issues, in the project that is in dispute, as judged by; project construction party yet all these norms and standards at all times as a basis for the project; since these standards may belong to the guiding norms, advocacy and enforcement are not large.

3 intelligent power engineering of quality management, control and countermeasures

3.1 technology management

(1) under contract and design requirements, should be in the project implementation process to determine the weak electricity systems, each subsystem and electromechanical equipment, civil engineering, decoration engineering interface between professionals, vendors, jobs contractors and construction units project scope, duties and the determination of the interface, as well as in the project implementation process which interface to modify to adjust and confirm.

We believe that electronic engineering interface determines is necessary to open the system is electronic engineering technology managementOne of the key or difficulty.

Engineering interface typically include: equipment and materials supply interface identification, System technology interface identification, design and construction of the interface interface.

Supply of equipment and materials: such as BAS interface and various types of valves, throttle and its executive bodies, flow and pressure sensors, communication interface card and the appropriate software, fire alarm system linkage control field devices such as relays, terminal boxes, lift axle box camera, card reader, such as the supply of various cable interface determination. System interface: all kinds of sensors, actuators and DDC implementation between the signal and the logic of the match, SA, FA, BA, and managed devices as well as the communication protocol between them, the transfer rate of matching and SA, FA, OA, BA, CA integrated management system to determine the technical interface interface, data requirements and shared scope definition. Design of interface for the subsystem: mainly on the managed object's functionality as well as various subsystems of the linkage between functionality, such as BMS to FA, SA managed object is the second monitor or supervise controllable, BA, FA, SA to communicate with the function of determining and SA system-level subsystem between linkage control functionality, such as alarm linkage with CCTV and graphics switching, as well as intelligent power engineering and air conditioning, power supply, lighting, design interface, especially BA on the managed object from the control signals and the device itself features between the electrical design and logical design of the match. Construction of the interface determination: usually the subsystem has a vendor or contractor to undertake the construction, therefore the scope of construction, the interface must determine, in particular, pipeline construction, wire range as well as processes and types of quality control of the interface between the Division and involves identifying and electromechanical equipment related valves, throttle actuators, sensors, installation, etc.

(2) focusing on technical and construction design drawings and data auditing

Design is a project of the main links, especially involving professional electronic engineering design, types of surface broader, so you must do before construction of the power engineering and construction design audit, timely detection of problems and take the necessary measures to ensure that the duration, quality and reducing rework, particularly in relation to the weak electricity works must be on the drawings and data for audits, to ensure that an inventory of devices in the contract, the monitoring point and the actual situation in the construction plans of the three must be consistent, that is, the monitoring point table of each control point in the drawings must be reflected and controlled point or monitoring point interface matching, the number of devices, models, specifications and drawings, equipment list, so make sure that the system on the hardware device integrity and auditing compliance interface interface, linkage, information communications interface specification requirements.

3.2 weak current engineering of quality control and countermeasures

Quality control of weak electrical engineering should be comprehensive, focusing on here is based on the characteristics of the current project stresses in the implementation of the three main stages of the design, construction, commissioning all aspects of quality control.

3.2.1 design stage quality control

(1) check to make sure that the various subsystems of system design, technical design, functional description, device selection must reach the contract, the owners and functional requirements analysis requirements.

(2) according to established engineering interface requirements, check the various professional, technical transfer of data between the subsystem meets the requirements, including features, signal match, device configuration, logic, etc.

(3) to check the design of the managed objects in place, both the pipeline signal interface interface features meet the design requirements.

(4) on the design drawings for comprehensive audit to ensure that equipment inventories, monitoring points table and construction drawings are identical.

3.2.2 the quality control of construction works

In addition to meeting the General project management, quality of the works on weak emphasis the following aspects:

(1) to strengthen professional and work coordination between

Power engineering is involved with the construction, decoration, air conditioning, water supply and drainage, electricity, lighting, elevators, and other professional and, in some sense light current project is in line with the type of work, the project site must work closely with the professional and coordination, especially in the valve, water temperature sensors, flow meters and flow switch installed, hole position, convex welding, throttle and actuator with all the corresponding types of coordination, and strictly in various professional process pipeline is finished and then added to the BAS sensors, actuators, cameras, PDS information point must be close coordination with the decoration project.

(2) to strengthen the process of checking and acceptance between

Due to the weak electricity construction of piping, lines, tank and installation and debugging line laying, might be different construction unit construction, therefore in each of the processes or types of construction is finished, you must fill in the appropriate records or install table for single equipment installation, threading, wiring must be in accordance with concealed work appropriate engineering acceptance and drawing requirements and handover acceptance, and do a single device test records, submission of complete engineering technology archives to ensure project quality and prevent over trifles.

(3) shall be adjusted according to the construction process and related construction and acceptance of the quality control phases.

(4) press the picture shows a block diagram of the construction process of the quality assurance system for construction and quality control.

(5) good power tubes, wire, cable laying and subtle works of construction records and acceptance.

(6) construction craft Essentials do a single installation of quality check table.

(7) according to the design and product specification requirements monomer unit test, and debug logging.

3.2.3 system debugging

(1) before the document checking system debugging, design drawings check: system diagram, control schematics, pipeline construction drawings, wiring, installation of various equipment floor plan product technical specifications and construction drawings and data; Line laying, test records, including covert works acceptance report; equipment installation records include all types of controlled handover acceptance form, between monomer unit testing records.

(2) according to the design, specifications and contract requirements for compiling and debugging scenarios, the review and verification.

Debugging scenarios must be compiled separately of the subsystem, its content should include monomers device debugger, checking or testing projects, methodologies, evaluation of the requirements or standards, test equipment, and various subsystems debugging opened on the basis of the design requirements for the system and other specialized equipment separate device running normally for linkage control.

(3) records, inspection, confirmed by the requirements of various test data, identify problems and propose measures in a timely manner, and with the relevant departments.

(4) strictly in accordance with the norms and the requirements of the above-mentioned debugging scenarios.

3.2.4 dealt with power engineering and electrical and mechanical relations

Intelligent power engineering is essentially for the electrical service, making it more electrical and functional requirements for the building services to high technology and organic fusion in mechanical and electrical systems, become a veritable intelligent building. Power engineering and electrical and mechanical engineering are closely related, some system essentially dependent on mechanical and electrical systems, in order to ensure that substance must note the following:

If the building project General Contracting, weak current projects involve a close relationship with the mechanical and electrical engineering, in particular, BA, FA and air conditioning, electrical, water supply and drainage, elevators, diesel generators, so it is usually weak prime contractor in the management of electrical and general contractor, in favour of mutual cooperation and coordination.

(1) the electronic and electrical engineering interface

As noted above, the weak electricity system and air conditioning system and heat source equipment, AHU, exhaust fan, etc., elevators, electrical lighting, diesel generators are closely related and, therefore, the project must be in different stages of identifying weak electricity system and mechanical design, equipment, materials, technology, interfaces, construction works and the determination of the interface.

① in electromechanical equipment order contract, must be clear on the current system of equipment technical requirements (technical performance parameters and technical interface requirements), the supply of equipment and materials, technical design of the interface and the construction of the interface.

And heat source equipment: start and stop control requirements and ways; if the means of communication must be clear connection methods, communication protocols, data formats, performance parameter transmission requirements, interface device and software interface. AHU: variable frequency control requirements. Elevator equipment: CCTV, video and power cables, card reader interface, floors and elevator landing requirements. Electrical equipment: monitoring parameters and data transfer modes and interface interface. Diesel generator equipment: monitoring parameters and data transfer modes and interface interface.

② in technical design phase

The BA and FA technology design process, must be further clarified the subsystem interface between specific technical details and requirements, and in written form to be determined, according to the monitor table and linkage requirements involving electrical control box for the secondary circuit design, cold water machine (cold source device), elevators, power distribution unit (high-voltage Cabinet), diesel generators, heat source equipment, air-conditioning system with valve as both sides do construction design and supply of equipment and materials for construction interface and modify again to confirm.

③ construction design phase

The two sides on the respective construction designed to confirm, once again on the confirmation of the four interfaces, the contract, technical specifications and construction drawings of consistency, both provide a detailed inventory of the hardware, while preventing omission or interface is not consistent, be consistent from drawings, also is to ensure the accuracy of the drawing, to avoid mistakes in construction, is a normal system rework commissioning of fundamental guarantees.

4 to standards to regulate the implementation of the project

4.1 on existing standards, specifications and gradually added, amended, perfect

Because the standards and norms are always lag behind the project, so it is recommended that the Department should be promptly organize related units do this job.

Shanghai in construction-related sector organizations, the Association by the Shanghai Municipal installations and installation Engineering Co., Ltd., Shanghai, editor in Chief, 12 units of the "intelligent building engineering technical specifications" writing group for current domestic engineering problems in the implementation of the above-mentioned project control the main links to standardization, standardization, to guide and regulate the project implementation.

4.1.1 the "specification" scope of application

"Standard" for new, expanded and reconstructed building no special professional technical requirements of intelligent electronic system.

4.1.2 key subsystem involved

Security system: including CCTV system, alarm system, patrol system, access control systems and parking management systems, automatic fire alarm and coordinated control system; construction equipment management system; communication automation system: including PABX systems, public address and emergency broadcasting system, satellite digital TV and cable TV systems, wireless coverage systems and wireless calling system; comprehensive wiring system, computer network systems, audio and video systems; multimedia system; intelligent integrated management system; domestic intelligence community; room works; lightning protection and earthing system.

4.1.3 the "norm" in the subsystem according to the needs of the various subsystems and use features include the following main content

(1) and its major deepening design: design elements and its features and design; interface interface design including design interface, technical interface and its requirements, depending on system requirements specifically deepen design document composition and requirements.

(2) system debugging and main contents: System debugging conditions; single system or point-to-point debugging; subsystem or single device debugging; this systemLinkage with other systems.

(3) the system of detection and main contents: System testing; single system or device detection requirements; system function calls; this system and other system linkage and its requirements.

(4) the system of acceptance and main contents: engineering acceptance of conditions; system acceptance of content and method; evaluation method of acceptance and its conclusions; acceptance documentation requirements.

(5) the system of maintenance management and training: System operation and management of the day-to-day content and its requirements; equipment maintenance management content and requirements; the system running the operations staff of training contents and requirements.

(7) system debugging, testing, and acceptance table type: according to the requirements and characteristics of the subsystem to determine various table type: a system or device debug logging tables; system or device detection-table-table, system acceptance.

4.1.4 "specification" of the main characteristics of the

(1) stressed the Intelligent Engineering "inherent" quality. Will deepen design, System testing, System testing, system acceptance, system maintenance and training, not only embodies the "specification" of coverage and highlights the intrinsic quality of the project.

(2) "standard" prepared by the guiding idea is very stressed the "specification" of operability, at Anthony certainty of quantitative as possible, so that implementation and checking.

(3) "specification" of the scope and content should be covered by the General intelligent engineering and project implementation in the subsystem main links. Especially in the detailed design, System commissioning and system maintenance training is in currently existing standards and norms for the larger additions and modifications.

(4) the construction and installation of parts of the specification will have modified GB50339-2003 standard.

4.2 strengthen standards and specification management

◆ On existing "normative" and "standard" should be amended and supplemented; recommends that there should be a permanent body do the work, such as professional associations responsible for this work and foreign market;

◆ The perfect national norms, local standards and enterprise standard, three-level norms and standards system;

◆ Qualified engineering contractor shall prepare the engineering construction craft standard and the national standard "project quality approval standard" of supporting and enhancing the competitiveness of enterprises;

◆ Formed after the quality inspection body accreditation testing unit on engineering conduct third-party testing and acceptance as a system.