Sensors are everywhere. They’re in our homes and workplaces, our shopping centres and hospitals. They’re embedded in smart telephones and a vital part of the Internet of Things (IoT). Sensors have been around for a long time. The first thermostat was introduced in the late Eighties, and infrared sensors have been around since the late 1940s. However, the IoT and its counterpart, the Industrial Internet of Things (IIoT), bring sensor utilisation to a brand new level.
Broadly speaking, sensors are devices that detect and respond to changes in an environment. Inputs can come from numerous assets, which include light, temperature, movement and pressure. Sensor outputs provide valuable statistics, and if sensors are linked to a network, they are able to share information with other devices and control systems.
Sensors are critical to the operation of many of today’s organisations. They can alert potential troubles before they grow to be massive problems, for instance, allowing organisations to carry out predictive maintenance and avoid expensive downtime. The information from sensors can also be analysed for trends, allowing business proprietors to gain insight into critical trends and make informed evidence-based decisions.
Sensors come in many shapes and sizes. Some are purpose-built containing many integrated individual sensors, permitting monitoring and measurement of many assets.
There are many varieties of IoT sensors and an even greater range of packages and use cases.
SPG Sensor Remote Device
The SPG Sensor Remote Device (SD1-2ADI-PCB) provides an easy expansion for an S1000 Smart Controller to provide analogue sensing information. It may be linked through the S1000 rules engine and then used to enable automated local decisions and provide an audit trail that can also be passed to ARCO Platform for logging.
The Sensor device runs on an OSDP communication, and up to 16 devices can be connected to an S1000. In addition, each sensor device supports onboard temperature and humidity, light detection and an accelerometer for movement detection.
There are also 2 additional digital/analogue inputs, with the analogue inputs supporting both voltage and current monitoring of third-party sensor devices. In addition, there is also 1 analogue/digital output.
The Sensor Device enables you to measure the intensity of visible light. The sensor’s spectral response tightly matches the human eye’s photopic response and includes significant infrared rejection.
- Precision Optical Filtering to Match Human Eye
- Rejects > 99% (typ) of IR
- 23-bit effective dynamic range with automatic gain ranging
- Binary-Weighted Full-Scale Range Settings
- 0.2% (typ) Matching Between Ranges
- Flexible Interrupt System
Temperature and Humidity Sensor
The Sensor Device enables the measurement of the surrounding air’s absolute temperature and relative humidity.
- Fully calibrated, linearised, and temperature compensated data output
- Parallel measurement of temperature and humidity on separate pins
- Typical accuracy of 1.5 %RH and 0.2 °C
The Sensor Device enables inertial measurement using a 6-axis MotionTracking that combines a 3-axis gyroscope and a 3-axis accelerometer.
- Digital-output X-, Y-, and Z-axis angular rate sensors (gyroscopes) with a full-scale range of ±250, ±500, ±1000, and ±2000°/sec and integrated 16-bit ADCs
- Digital-output X-, Y-, and Z-axis accelerometer with a full-scale range of ±2g, ±4g, ±8g and ±16g and integrated 16-bit ADCs
- Factory calibrated sensitivity scale factor
- Wake-on-motion interrupt for low power operation of applications processor
- Minimal cross-axis sensitivity between the accelerometer and gyroscope axes
Hazardous Gas Detection
The Sensor Device enables measurement of gas leakage by detecting LPG, isobutane, propane, methane, alcohol, Hydrogen or smoke gasses.
- Wide detecting scope
- Fast response and High sensitivity
- Stable and long life
- Simple drive circuit
The Sensor Device enables measurement of barometric pressure based on piezo-resistive technology featuring high accuracy and linearity as well as long-term stability and high EMC robustness.
- Detects pressure from 300 to 1100 hPa
- Relative Accuracy at ±0.12 hPa, equiv. to ±1 m (950 to 1050hPa @25°C)
- Absolute Accuracy at typ. ±1 hPa (950 to 1050 hPa, 0 to +40°C)
Indoor Air Quality Sensor
The Sensor Device enables measurement of contaminating gases present in real-world applications enabling a unique long-term stability and low drift.
- Multi-pixel gas sensor for indoor air quality applications
- Outstanding long-term stability
- Two pre-processed indoor air quality signals