Internet of Things technology is one of the important supporting technologies for industrial transformation in the field of smart energy conservation. In the Internet of Things era, tens of billions of objects will be connected to the network to achieve intelligent, economical, market-oriented, efficient and clean energy development and utilization. .
In the field of smart energy conservation, IoT technology can carry out digital, networked and intelligent transformation around key links such as smart buildings, green data centers, key energy-consuming industries, green factories and green parks in government departments and public institutions. , to promote in-depth perception, dynamic monitoring, data aggregation and intelligent decision-making of the entire smart energy-saving industry chain. For example, through the Internet of Things, various electrical appliances are connected to collect operating parameters of electrical appliances, such as electricity, power, etc., to monitor energy consumption in industries, buildings, equipment, etc., realize energy efficiency management functions, promote energy conservation and consumption reduction, and assist in the realization of energy Efficient consumption of electricity; in addition, the establishment of cloud and intelligent service platforms can improve the level of big data development and utilization in the field of smart energy conservation, and achieve personalized customization, intelligent operation, networked collaboration and service-oriented transformation of energy-saving systems.
According to incomplete statistics, my country’s existing building area exceeds 43 billion square meters, and the annual new area is about 2 billion square meters. However, its energy utilization efficiency is low, and the energy consumption per unit of building is 2-3 times higher than that of countries under the same climate conditions.
Since the existing building water, electricity, gas and other supply networks have been established, energy-saving renovation involves equipment installation, wiring, management system adjustment and other work. There are problems such as large site limitations, complex environment, difficult operations, etc., and various non-conformities in the energy supply system. Standard components and communication protocols also increase the difficulty of implementation, and energy-saving renovations have a certain impact on the normal operations of relevant units in the building.
Products that can meet civil building energy conservation standards at low cost and can be constructed simply and quickly will become the preferred choice for building energy conservation. Based on the existing water, electricity and gas energy consumption network, by configuring sensor equipment integrating sensing, communication, calculation, self-test and other functions at water meters, electricity meters, gas meters and other energy measurement nodes, energy consumption data can be realized. Accurate collection and transmission achieve full transparency of energy consumption data, greatly simplifying the construction process. In addition, temperature, humidity, and light sensors are installed at the main nodes of the building to automatically sense indoor coldness and warmth, laying the foundation for providing humanized services.
Through summary analysis of data, we can discover the energy consumption patterns of electricity, water supply, air conditioning, etc., and discover factors such as time, space, behavior, and normal use and waste of energy. Based on the energy consumption data of each unit in the building, energy-saving audits can be carried out; on the other hand, based on data analysis, an energy consumption monitoring and alarm strategy can be established to form a three-dimensional network for equipment monitoring and management during the closed-loop formation process. Equipment management functions such as monitoring, fault diagnosis, and critical alarms are also implemented in this solution.
With data support, hotels and properties can use frequency conversion systems to adjust the motor’s speed and frequency according to changes in temperature and load. Generally, 30%-50% of electricity can be saved. The central air-conditioning system adopts the “single refrigeration-single cooling” operating mode when the load is small, reducing the power consumption of the air conditioning system. Using ice storage technology. Utilizing the peak-valley electricity price difference, ice is produced at night and released during the day. Reduce electricity bills.
In addition to air conditioning systems, there are also lighting systems. Although the price of energy-saving lamps is several times higher than traditional incandescent lamps, their luminous efficiency is 4-5 times higher and their service life is 8-10 times longer. They are completely economically feasible. If a hotel uses all energy-saving lamps for lighting, it can save at least 70% of electricity. Guests stay in the guest room for 12 hours every day, including about 2 hours in the bathroom. More than 80% of guests will not turn off the bathroom lights and ventilation fans. The bathroom lights and ventilation fans are inactive for 10 hours. If they are turned into smart sensor lighting systems, they can save a lot of electricity bills.
If these smart devices are integrated with all the IoT devices in the building, it will not only improve the office efficiency of the people in the building, but can even activate the emergency plan immediately in case of an emergency such as a fire and notify all personnel to evacuate.
Ключевые слова: wireless data terminal