A Web-Based Office Climate Control System Using Wireless Sensors

Abstract

Abstract-Conventional heating, ventilating, and air conditioning (HVAC) systems usually achieve the desired control level by means of simple ON-OFF control, which can often result in high energy wastage. A potential solution to this issue is intelligent self-regulating HVAC controllers, which base their actions/decisions on sensor data. In this paper, an office climate monitoring and control system is designed and implemented. The system consists of various wireless sensor nodes and a control node. The sensor nodes provide the sensor data necessary to determine occupancy and the control node executes the algorithm, which decides whether to activate cooling or heating based on the sensor data. This system can serve as a controller and can be integrated into HVAC systems in smart buildings. It is shown that the developed control algorithm executed on the control node results in an improvement of up to 39% in energy efficiency over conventional ON-OFF controllers for HVAC systems.

Critical review and research roadmap of office building energy management based on occupancy monitoring

“…A more advanced control algorithm compared to the conventional on/off controllers was proposed by Foster et al [144]. The control algorithm analyses the extracted data from a network of sensors, coordinates all the components of the system, and manages the communication between them.…”

Predictive analytics in facilities management

“…As smart building technology continues to develop, this could be done completely automatically as part of a demand-controlled ventilation system, which automatically triggers increased ventilation when the sensors detect CO 2 levels have risen above 800 ppm. In this way, adherence to best-practice certifications can be balanced with a sustainable energy strategy using a sensor-based climate control system (Foster et al , 2016).…”

“…The output from hundreds of sensors can be overlaid onto a three-dimensional model of the workplace and visualised in real time, allowing the immediate identification and remediation of sub-optimal environmental conditions. Indeed, technology is being developed to integrate sensor readings into “smart” heating, ventilation and air-conditioning (HVAC) systems to ensure that the process of remedying poor IEQ occurs automatically, while simultaneously improving the energy efficiency of the HVAC system by up to 39 per cent (Foster et al , 2016; Salamone et al , 2017). In this way, wireless sensors can help facilities managers to understand and manage the environmental performance of the workplace in more depth than ever before.…”

Reliability, failure detection and prevention in cyber‐physical systems (CPSs) with agents

“…It is therefore expected that cyber‐physical systems will be developed to address this issue in the future. One such system is the one taking care of the microclimate inside large office buildings, where the ambient parameters are monitored and properly managed for assuring the comfort of the occupants while minimizing the energy consumed.…”