Shanghai Jiaotong University Library Energy Conservation Monitoring System
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Application requirements:At present, central air conditioners in large indoor spaces such as libraries basically adopt a unified temperature control mode, which not only wastes resources, but also has unsatisfactory temperature and humidity control effects. The actual temperature of the large indoor space has an obvious descending gradient, resulting in a large temperature difference between each floor, and the learning and working environment are affected by the temperature difference and the comfort is deteriorated. System acquisition and rational control are required. This system realizes the collection and analysis system of the environment and energy consumption parameters of the library reading room, provides a reasonable control scheme for the temperature and humidity control of the library, and achieves the effect of achieving the best temperature and humidity control with the minimum energy consumption. Reduce air conditioning energy consumption.
Program Summary:based onZigbeeThe wireless network series collection equipment WSN realizes the collection and analysis of environmental energy consumption data such as temperature, humidity, CO2 and air-conditioning power in the B area of Shanghai Jiaotong University Library. Obtain the temperature field model of the reading room through wireless acquisition, give a reasonable air conditioning temperature control strategy, turn off the air conditioning at the point that meets the temperature control requirements, reduce unnecessary power consumption, and achieve the best temperature control with the smallest energy consumption, to achieve The effect of energy saving and emission reduction.
Full case study
This project will use NI’s latest LabVIEW 2010 software platform and WSN wireless network hardware technology to develop a zigbee and Internet-based energy-saving monitoring system through cooperation with Shanghai Jiaotong University and the unique RIO-Mesh network database of Juxing Instruments. This system has the following advantages:
1) The application of WSN wireless technology will greatly reduce the complexity and construction difficulty of on-site wiring, shorten the development cycle of the project, and reduce the construction cost.
2) Utilize NI’s reconfigurable I/O hardware (RIO) features to surpass traditional design methods to optimize system performance and reduce project development cycles.
3) WSN wireless gateway NI9792 and wireless nodes 3212 and 3202 are wireless test platforms tailored for LabVIEW. Combined with the latest LabVIEW 2010 development platform, they can greatly enhance the performance of wireless test systems and are more conducive to data sharing and publishing.
4) Make full use of the RIO-Mesh network database function provided by Juxing Instruments to realize Internet access, collection and query of data. Users only need to access the Internet to monitor the real-time environmental energy consumption data of the library at any location, and provide reasonable The air conditioning adjustment scheme breaks through the location limitation of the system operation and greatly improves the adaptability of the system.
The basic functional framework of this system includes: Internet-based environmental energy consumption data collection; wireless WSN-based temperature and energy consumption data collection and transmission, real-time monitoring of environmental parameters such as room temperature, energy consumption, and humidity; Display, output application of air-conditioning control strategy; dynamic modeling of monitoring layout; report output of system information and air-conditioning control plan; online query of historical data of temperature and air-conditioning energy consumption.
System features and innovations
1) For the research on energy conservation and emission reduction of air conditioners in the large space of the library, through data collection, analysis, and sorting, a set of feasible solutions for optimizing the physical environment such as temperature and humidity in the library is developed to achieve low-carbon, green, energy-saving and environmental protection. to promote the construction of an energy-saving and environment-friendly society.
2) Make full use of the RIO-mesh network database function of Juxing Instruments to realize Internet access and collection of data. Users only need to access the Internet to monitor the real-time temperature and energy consumption data of the library at any location, which is convenient for customers’ secondary development. .
3) The acquisition and transmission of temperature, carbon dioxide, and humidity data are realized through the NI WSN wireless network platform. At the same time, the nodes of the wireless sensor network can be set as routing nodes, thereby extending the transmission distance of wireless signals and increasing the reliability of the network.
4) The NI RIO platform is a modular embedded control system with abundant I/O modules. You can select appropriate I/O modules according to the sensor interface for signal acquisition. Its unique reconfigurable performance can fully Take advantage of virtual instruments to greatly shorten the project development cycle and improve development efficiency.
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