The Internet of Things (IoT) is a vast information system based on the Internet, where RFID and wireless data communication connect the sensing layer with the application layer. This interconnection creates a comprehensive network that integrates human activity with the environment through sensing and control systems.
The Importance of Low Power Sensors in IoT
Wireless technology development is often limited by power supply concerns. Battery life remains a key issue, especially for IoT devices, which are typically battery-powered sensors. In this context, low power consumption is a crucial advantage, allowing sensors to operate longer and more efficiently in IoT applications.
GSS CO2 Sensors for Indoor Air Quality Monitoring
GSS CO2 sensors have emerged as a favorable option for CO2 monitoring in office and household environments. Using solid-state, MIR, and photodiode technologies, these sensors deliver ultra-low power consumption and remarkable performance. They stabilize in less than 2 seconds and can perform measurements twice per second while consuming less than 3.0 megawatt-hours per hour.
Conventional CO2 sensors often rely on fragile incandescent light sources, which degrade over time. In contrast, GSS sensors are robust and well-suited for the challenging deployment conditions in IoT. The GSS CO2 sensor family, including its luminous diode and photodiode, is designed and manufactured in Scotland. These sensors emit and detect radiation at 4.3µm—the primary synchronous vibration frequency of CO2 molecules.
The COZIR LP Sensor: Low Profile, High Performance
The COZIR-LP is a low-profile, low power, high performance CO2 sensor operating at a 2Hz update rate while consuming only 3mW. This world-leading power efficiency makes it ideally suited for battery-operated and portable instruments. As the third generation of GSS’s CO2 sensing products, COZIR LP is based on proven IR LED and detection technology, innovative optical designs, and offers measurement ranges of 0-2000ppm, 0-5000ppm, and 0-1%. It is suitable for applications such as building control and indoor air quality monitoring.
How GSS CO2 Sensors Work in IoT Applications
The sensing unit of a GSS CO2 sensor consists of a bridging board equipped with an IR emitter and sensing components, along with a customized optical chamber. During measurement, CO2 diffuses into the chamber and absorbs IR radiation. By comparing the LED source’s input energy with the photodiode’s received signal, the sensor calculates the IR radiation absorbed by CO2. GSS has refined an algorithm to compensate for temperature variations, ensuring more accurate CO2 concentration readings.
