self powered wireless sensor network for hvac system energy improvement - towards integral...
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Self Powered Wireless Sensor Network for HVAC System Energy Improvement - Towards Integral Building Connectivity . Jorge Berzosa. IoTWeek 2014 – London, June 19th . Objectives. - PowerPoint PPT PresentationTRANSCRIPT
Self Powered Wireless Sensor Network for HVAC System
Energy Improvement - Towards Integral Building Connectivity
Jorge Berzosa
IoTWeek 2014 – London, June 19th
Objectives
IoTWeek2014 – London, June 19th
Efficiency improvement of both used and newly installed HVAC systems through thermal simulations of the HVAC system and continuous real time comparison between measured and simulated outputs
◦ Self Powered Multi Magnitude Wireless Sensor Network (SP-MM-WSN)
◦ Cost effective and maintenance free wireless technology
Deployments
IoTWeek2014 – London, June 19th
Two different real environments:
◦ Apartment building: temperature sensors in three buildings distributed in apartments located in different floors
◦ Office building: temperature sensors, PIR sensors and actuators for HVAC control
Type Quantity Data Refresh Rate Office building
Temperature sensors 6 10xBasic Cycle (5min) Temp. + PIR sensors 22 4xBasic Cycle (2min)
Actuators 28 1xBasic Cycle (30sec) Apartment building
Temperature sensors 30 10xBasic Cycle (5min)
Apartment Buildings
IoTWeek2014 – London, June 19th
Boiler room (underground)
Boiler room (underground)
Boiler room (underground)
Central BMS (next to the boiler room)
Boiler room (underground)
Office Building
IoTWeek2014 – London, June 19th
Communications
IoTWeek2014 – London, June 19th
Security◦ Privacy, confidentiality◦ Integrity
Reliability◦ Retransmission
Temporal Spatial (channel-hop)
◦ QoS, adaptability
◦ Coexistence, interferences
Installation
IoTWeek2014 – London, June 19th
The device deployment should take into account: High light levels to provide the necessary power Sensor measurement conditions Distance between devices, obstacles and materials Not in areas where the sensors can be damaged
accidentally/easily
Interference of job/daily activities of the workers/users Not visible or aesthetically appealing User motivation
POWER HARVESTING SOCIAL IMPLICATIONS
IoTWeek2014 – London, June 19th
Federated Networks deployed over unfederated spaces.
Mesh networks rely on the availability of different nodes. If some critical nodes ‘die’ the reliability of the full network could be affected
PH-based systems: autonomous but a minimum ‘care’ or ‘environmental conditions’ are needed
Zero PowerArea
(staircase)
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Zero Power Area / Non accesible flat
Clarify if users’ behaviour could be influenced and altered to take care of the surroundings technologies, technologies that need special conditions to work properly