【 Weak current college 】 building intelligent profile---the fourth section intelligent property management

First, building intelligent property management and characteristics 1. building intelligent property management concepts for building intelligent property management refers to the specialized agencies and personnel, in accordance with the contract and the contract, in building intelligent systems support, advanced and scientific methods, has been put into use and acceptance of construction intellectualization, ancillary facilities, equipment, assets and venues for the purpose of the business of management, at the same time to the architectural environment, clean green, case defence, leasing, equipment operation and maintenance of the implementation of the integration of professional management and the users of the building and the tenant households to provide efficient and comprehensive services.　　Building intelligent property management to effective implementation of building intelligent facilities and site management, give full play to the intelligent construction the use value of the property and property value, value add. 2. building intelligent property management features and traditional architecture of property management, architectural characteristics of the management of intellectual property as described below. The traditional architecture of intelligent property management property management management object architecture and its equipment facilities system is built on the machining and civil engineering, on the basis of the applicable is machined precision and process error various intelligent systems, microelectronic products as the main equipment and facilities maintenance mode traditional maintenance mode is downtime maintenance, failure to carry out emergency repairs, practice building automation subsystem, security subsystem, parking monitor subsystem requirements not stalled. Therefore, the requirements of the property management Department in ensuring the uninterrupted functioning of a plan for maintenance requirements for professionals in the construction industry demands of traditional construction and equipment of a single person in the field of intelligent systems require electronic technology, communication, automation and information technology, professional respect many trades, interdisciplinary professionals on property management requirements of traditional property management is on the scene of the recessive facility intellectualization system is checked on the equipment and facilities for remote, real-time monitoring
3. building intelligent property management target building intelligent property management will achieve the following objectives of management. ① the creation of a safe, comfortable and harmonious living environment. ② play the greatest use of the property value. 　　③ the property as a hedge, value-added.　　 4. building intelligent property management of content building intelligent property management of content, including original traditional property management of content, that is, day-to-day management, cleaning, greening, security, equipment operation and maintenance, and also adds new administrative content, such as asset management, leasing and management, while giving daily management, security, equipment operation and maintenance to new management content and style. (1) management capabilities manage ① payments. Operating status and budget management, tax management. ② budget management. Maintenance, repair, cleaning and maintenance of artificial fee, material, equipment and supplies for the consumption of budget management. ③ commissioned contract management. Maintenance, security and cleaning, and other practitioners and property owners of contract management. ④ rental management. Rentals, service charge, water electric charges, telephone charges and interest expenses (corridor lighting, air conditioning, etc.) and other management. ⑤ set, and contract management. 　　Tenants and property owners, between the draws back the contract management. 　　(2) run management capabilities manage ① ② operation of equipment; maintenance management; ③ facilities layout management; ④ cleaning operation management; ⑤ sanitation management; security management; ⑥ ⑦ waste management; ⑧ parking management, etc. (3) the user let, service management function ① public facilities used to make an appointment. Conference room, storeroom, exhibition such as the schedule and multi-functional Hall reservation program management. ② time air conditioning and lighting applications. Specified time, air conditioning, lighting, use application management. ③ OA services. PC machines, fax machines and word processors, and other public services, the utilization of management. ④ No cash services. 　　Vending machine, markets and restaurants use smart card settlement management, etc. Second, building intelligent equipment operation and maintenance of equipment for intelligent building maintenance, should pay attention to preventive maintenance is the primary guiding ideology, according to the characteristics of the different equipment performance to develop different time limits for equipment maintenance and strict maintenance standards, equipment maintenance and repair work to achieve standardization and tables. Establishment of equipment maintenance database, collect and collate a complete maintenance of drawings, history, and other documents; equipment for predictive maintenance, not only to achieve prevention and reduce maintenance workload and make the device work with consistently good.　　There was also a need to develop appropriate procedures and management systems, and to pay special attention to personnel training.　　1. device management equipment management is to ensure that the equipment properly and important elements of a good rate, its management of the main contents include the development of systems practice, operator liability interface and shift system, etc. (1) system in practice
Establish procedures to ensure that the equipment and system's normal operation, to achieve the best performance of the device and system design goals, while standard equipment and system run-time basic operation requires that the correct action is to ensure that equipment is in good condition.　　Intelligent building equipment and system run time code, usually includes the following content: ① operator into the system, enter the operator's number and password; ② graphically retrieval equipment operating conditions; ③ set equipment fault alarm or undo alarm; ④ device alert information and confirmation; ⑤ equipment manual control and regulation; ⑥ execution of the program's manual; ⑦ equipment uptime of cumulative; ⑧ equipment preventive maintenance tips; ⑨ device running parameter and statistical reports of print; ⑩ operator shift, exit the system's operation; operator on duty log completed and signed. (2) operator liability interface
Operator responsibility interface including equipment operation and alarm acknowledgement and processing of information. Equipment operation and alarm information to confirm and process means that the system is in normal operation, monitoring and management computer CRT display system master plan, in the event of device failure alarm or running over limit alarm, CRT immediately eject the device location or equipment operation, the operator should in the stipulated time period (for example 30 seconds) to complete the device alertsPoint of recognition; operator in CRT graphics recognition alarm points, should immediately notify the engineering and maintenance departments.　　Operator and the device alarm point of the warning content filled watch log, including: alarm point address number, alarm time, confirmation time, alarm status (or surplus) and review conclusions. (3) shift system
Operator in the shift, shift personnel should quit their monitoring and management computer, succession should own number and password access to your computer by monitoring, defence departments and project management sector as the number of the access to the system operator to carry out system and device security management; so that the necessary verification. 2. equipment maintenance management equipment maintenance management is to maintain the normal operation of equipment.　　Normal level refers, in accordance with the equipment of the specification requirement of main performance and ability level or under use requirements stipulated mainly achieved level.　　Equipment maintenance and management is mainly divided into failure of maintenance and preventive maintenance of two categories. (1) failure of maintenance
Equipment or system equipment due to external causes or product quality problems caused by accidents and damage to the equipment or system equipment and emergency maintenance called maintenance.　　General failure of maintenance in rapid diagnostic equipment of failure parts, used spare parts for replacement, makes the equipment or system in the shortest possible time to resume normal operation. (2) a preventive maintenance
In order to effectively extend equipment life span and run good rates, deferred update time of the overhaul, improve equipment utilization and use value, make the device to keep functioning State, device performance does not diminish or damage quickly, avoid major equipment failure, you must carry out preventive maintenance. Through preventive maintenance on equipment in use period for periodic maintenance and testing, prevention device and system equipment possible fault and damage.　　Preventive maintenance can also include clinical maintenance, clinical maintenance refers to the device and the system of updating and upgrading, thereby ensuring that equipment and systems to continually meet the needs of intelligent building features.　　Third, building intelligent energy saving management realize building intelligent energy saving is the building construction intellectualization of the pursuit of goals, through energy conservation management, saves the construction cost of the operation and management and costs.　　1. building intelligent energy management concept, the so-called building intelligent energy saving, in building intelligent energy consumption and within a reasonable balance between utilization. Building intelligent energy consumption (or energy) is a building built in the future, in the course of each of the required sum of energy. Building energy consumption is also a country's total energy consumption.　　Some countries in Europe and America building consumes approximately national total dissipation of 30%. United States national building code standards meeting (NC SBCS) in 1973, enacted the new building energy-saving temporary standards ", United States National Bureau in 1974, the new building energy statistics and evaluation standards" (1976), the United States Government in November 1978, the enactment of the National Energy Act, the energy policy of energy saving in buildings presented the detailed legal provisions that have significantly contributed to saving energy in buildings in the United States, Japan, February 1986 was enacted since the continuous building energy use the rationalization of the judging criteria, the new buildings have been built and air-conditioning energy saving Guide, etc.　　France, Germany, United Kingdom, Canada and other Governments in the 1980s before and after the promulgation of the buildings energy conservation Act, also in the construction industry in China to develop appropriate building energy-saving energy-saving measures and evaluation criteria.　　The equipment and facilities management Book table shown as 14.4.1 in Europe and the United States building energy consumption ratio comprehensive tables, you can know the energy consumption in buildings, the heating, ventilation and air conditioning energy consumption accounted for 65 per cent, accounting for 15% of the domestic hot water, lighting, elevators, TV 14%, kitchen cooking 6%, which is used for building heating, ventilation and air conditioning energy consumption accounted for about 10 countries in Europe and the total energy consumption 19.5%, this is a very impressive figures. 2. building intelligent energy management measures and methods of building intelligent energy management not only include traditional architecture used by energy-saving method that is more important is the use of advanced technology to achieve more accurate and efficient and control energy consumption more reasonable.　　Usually the content of the energy-saving buildings and objects including building design, air conditioning, lighting and equipment. (1) architectural design, with the southern and Northern dynasties ① rather things toward. ② with outer surface of the small round or square building. ③ reduce the window size. ④ use heat absorbing glass, reflective glass, double glazing. ⑤ with Interior and exterior shading. ⑥ minimize the external walls of buildings. 　　 ⑦ improve the exterior wall and roof insulation, heat insulation capacity. (2) air conditioning system
Human comfort conditions are met, according to the outdoor temperature and humidity changes, dynamic regulation of indoor temperature and humidity set value, temperature 17 ° c to 28 ° c, relative humidity of 40% to 70%. Winter and summer low value, high-value taken. ① in winter and summer have access to the minimum ventilation rate; transitional quarter a new amount of wind. ② detect carbon monoxide concentration, control of outside air intake. ③ changes under indoor personnel, increase or decrease in outdoor air. ④ adopts all heat exchanger, reduce fresh air cooling load and thermal load. ⑤ in cooling and warming is stopped to have access to fresh air. ⑥ Depending on temperature, humidity, at the request of a reasonable range of temperature and humidity control. ⑦ increased water temperature of air supply, to reduce water and air and transmission power. ⑧ used VAV Terminal control (VAV), variable flow control (VWV), saving fan, water pump and chiller power consumption. ⑨ reduce duct velocity, reduce system resistance. ⑩ uses efficient energy and heat source equipment. Bengre heat recovery system. Prevention of cold heat, increased control precision. For best start-up and shut-down and run-time control. 　　Energy-saving control algorithm used computers to overcome the equipment redundancy. (3) lighting and equipment ① appropriately lower lighting, making full use of solar lighting. ② According to ambient lightLine changes, Auto adjust the illumination changes. ③ According to different areas on the lighting requirements for the degree of illumination of the partition. ④ automatic control of the public area and building facade lighting of opening and closing. ⑤ automatic speed adjustment and control of mechanical and electrical equipment (such as elevator and exhaust fan) start and run time. 　　⑥ overcome unnecessary equipment redundancy. (4) construction intellectualization of integrated energy-saving measures
① improving indoor temperature and humidity control precision. Building the change of temperature, humidity and energy are closely related, according to the United States National Bureau of statistics has shown that if during the summer months will set value 1 ° c, the temperature drop will increase by 9% of energy consumption; if in winter will set value 1 ° c, the temperature rise will be increased by 12% of energy consumption. Therefore the building temperature and humidity control precision, in the set value is within the scope of the air conditioning system and energy-saving and effective measures.　　Europe and the United States and other countries on different building temperature setting values such as the equipment and facilities management, "a book shown in the table, and 14.4.2 requires its temperature control accuracy: ± 1.5 ° c, humidity 60% ± 5% of the range. Energy-saving more and more scarce, and the efficient use of energy has been put in a national daily agenda at all levels of Government. Select high control precision construction equipment monitoring system, is to meet the indoor temperature and humidity control precision of prerequisite requirements. According to statistics, over air conditioning system control precision: 1 ¡æ caused by energy loss will be 10%.　　Therefore air conditioning system for temperature and humidity control precision, the higher the better, not only comfort, energy-saving effect is more pronounced. ② the new airflow control. Proceeding from requirements of health, the building must ensure that everyone has a new amount of wind, but too much fresh air access, will increase the energy consumption of fresh air. The size of the new amount of wind is mainly based on the carbon dioxide concentration in indoor allows to determine the concentration of carbon dioxide, allowing for 0.1% value, each of the new wind of about 30m3. But to carbon dioxide concentrations as indicators, not only carbon dioxide (CO2) harmful effects on the human body, are also integrated into account temperature and humidity, waste gas and dust, and other pollution factors. Thus the apart from carbon dioxide gases other than the factors of good cases, consider reducing the new amount of wind. You can implement the new airflow control measures have two. In the return air carbon dioxide detector set on the road, according to the return air carbon dioxide gas concentrations of automatic regulation of fresh air door opening. 　　According to the law of staff turnover within the building and use of statistical methods, to establish fresh air valve control model, to the corresponding time and determine the run program for program control fresh air valve to control the new amount of wind. ③ air-conditioning equipment best start-up and shut-down control.　　By BAS system for air conditioning equipment for building cooling and warming the best start-up and shut-down time for calculation and control to reduce unnecessary cooling and warming of tolerance, the purpose of achieving energy saving, in building cooling, preheating, close the outdoor fresh air valve, can reduce the capacity of the device, and can reduce gets fresh air from the cooling or heating energy consumption. ④ air conditioning water system balance and variable flow control.　　Through scientific and reasonable air conditioning system and energy-saving control algorithm, not only can you reach the temperature and humidity environment of automatic control, while at the same time can be quite substantial energy saving effect. Air conditioning system that is the essence of heat, must flow of water through the cooler and fan-driven underfloor to energy exchange, energy exchange efficiency not only with the wind speed and air cooler effect of temperature on the thermal efficiency is more concerned with hot and cold water flow and thermal efficiency. Usually not used for air conditioning systems for effective air conditioning water supply system balance and variable flow management, with constant pressure difference backwater to set air conditioning control algorithm, as a result of temperature and humidity control precision is very poor, energy waste is extremely clear.　　This is due to the constant backwater pressure difference, since the balance ability is poor, flow value and the actual heat requirements far, often caused by temperature and humidity control, energy waste and equipment damage. Through the air conditioning system in the most remote and most recently (relative to the air conditioning system for the backwater of stagnant water exchanger) of air conditioners, in different energy States and different operation flow and control effect measurement parameters analysis shows the air conditioning system with a strong dynamic characteristics, health status of the automatic control system in accordance with the heat, dynamically adjusting the various air-conditioners of solenoid valve, control flow changes accordingly, so the total for the circuit water flow value is always evolving, in response to this change for water pressure difference must be adjusted in order to find a new balance.　　From that standpoint, in hardware certain conditions flow monitoring is the key to saving energy, must be adjusted at any time, through establishing an appropriate experimental data of variable flow mathematical model of energy-saving control (algorithm), will air for backwater system consists of open-loop system into closed-loop system. ⑤ overcome HVAC design of redundant equipment capacity. Since most of the Institute of HVAC professional designers, to present building intelligent used by BAS functions understand enough, usually at design time, often still using the traditional cooling load and thermal load calculation, is not sufficient and accurate basis for scientific approved air conditioning system efficiency and energy consumption, thus resulting in the design of a certain device capacity and power redundancy, the waste of energy, and this redundancy is very difficult to manually monitor the way be overcome. Because of building intelligent scientific use of construction equipment automation system of energy-saving control models and algorithms, dynamic adjustment of the equipment operation and input number to effectively overcome because HVAC design of equipment capacity and power redundancy of wasted energy.