gas sensors for smart buildings

sensors for smart buildings

Buildings consume 41% of all energy - the largest component in the economy. Ventilation systems account for about half of all the energy the building consumes.

Modern buildings are designed with Heating, Ventilation and Air Conditioning (HVAC) systems that provide a target amount of fresh air per person, for example 15 cfm/person or 7.5 L/s per person. Conditioning this fresh air is a significant operational cost.

Conventional ventilation systems operates as if every room is fully occupied at all times, resulting in enormous waste of energy. 

In many buildings, occupancy can vary greatly during the course of the day. Using Demand-Controlled Ventilation (DCV) the correct amount of air is always provided for the actual number of occupants in the space, saving as much as 50% of the energy consumed. This approach is common in new construction and is a component in Green Building Construction.

Reducing Operating Costs for Existing Buildings

While CO2 sensors are easily incorporated into a new building design, retrofit of CO2 sensors in existing buildings has posed a challenge because of high wiring cost, as high as $1,000 to $3000 per sensor. Traditional CO2 sensors consume too much power to work on batteries or energy harvesting.

Lightsense, taking advantage of the unique characteristics of its IR MEMS devices, has developed a new platform to design ultra-low power gas sensors that can work on battery power for more than 10 years, or alternatively be powered by energy harvesting. 

 

CO2 sensors based on the low-power platform incorporate ultra-low power cyber-secure communication to the HVAC controller for regulating the inlet of fresh air based on the CO2 level, a proxy for the actual occupancy. 

The Lightsense sensors slashes the installation cost of CO2 sensor networks by more than 80% reducing payback time to less than 1 year, a compelling economic proposition. 

The Lightsense technology thereby opens the retrofit market which is ~99% of all buildings, a market ignored in the past due to high installation cost and consequently long payback time, 5-7 years being typical.

 

sensors for smart cities – environmental monitoring

Many Governments worldwide are dealing with increasing amounts of choking smog in major urban centers. This market will become more and more important as countries across the world work to combat the smog and other pollution problems. 

Many cities have embarked on programs to battle air pollution that involves a network of sensors to gather air quality data and employ real-time data analytics that pinpoint sources and movement of pollutants. Smart Cities can mitigate the effects of pollution by deploying an extensive array of sensors to collect actionable data on the environment. 

 

Lightsense sensor technology can be applied to measure a wide range of environmental gases causing air pollution: nitrogen dioxide (NO2), sulfur dioxide (SO2) carbon monoxide (CO), and ozone (O3).