Smart Sensor Systems

Smart Sensor Systems

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Smart Sensor Systems

Smart sensor systems are important to awareness of our atmosphere and provide monitoring of our health and environment as well as safety, security, and supervision. A transformational leading in the field of sensor technology has been the evolution of smart sensor systems. The explanation of a smart sensor may differ, because a smart sensor is the combo of a sensing element deals with efficiency given through a microprocessor. Especially, smart sensors are essential sensing elements along with embedded intellect. The smart sensor signal is fed to the microprocessor, which measure the data and gives an informational output to an outer end user. A more ample way of a smart sensor system, which is used in this content, is illustrated in Fig. 1: it is an entire self-governing sensor system that has the capacity for logging, deal with a model of sensor respond and other facts, autonomous power, and capability to pass on or display instructive data to an external user.

The elementary scheme of a smart sensor is that the mixing of silicon microprocessors with sensor knowledge can not only supply informative power and modified outputs, but also extensively get better sensor system performance and efficiency. The smart sensor carry several useful layers: signal detection through discrete sensing elements, signal transmission, data validation and interpretation, and signal processing and display. Several sensors can be integrated in to a single smart sensor system which has operating properties, such that as the bias voltage or temperature; it can be set through the microprocessor. The data acquisition layer will translate the signal from analog to digital and get additional factors of interest to give compensation when needed designed for long term drift, thermal drift, etc. The embedded intellect will always supervise the discrete sensor elements, authenticate the engineering data being given, and from time to time verify sensor calibration and health.

The process data become informative and can then be transmit to external users. The user can decide the difficulty of the data transmitted: through a single reading to a entire download of the sensor system’s factors.

One main implication of smart sensor systems is that significant data can be provide to the user with improved integrity and reliability. Intellectual parameters can be integrated at the sensor level include but not limited to: self-healing, self calibration, self-health assessment compensated measurements, (pressure, temperature, auto zero, calibration, relative humidity correction).



Examples of Smart Sensor System

A basic smart sensor contains much more than it is just a sensing part; it is a complete performance system. The sensors have an analog circuit for control, power management, and interface to the digital world. Sensor inputs be able to process to, integrated with other sensory inputs for compensation, reduce noise, reliability improvements and redundancy it is then interfaced to output requirements with the intention of range from simple digital displays of sensor output to wirelessly transmit and store data so that feed-back to sensors or feed-forward to suitable system control in the digital world. The evolutionary expansion of a smart sensor system is exemplify in Fig. 2, in which larger apparatus built with discrete electronic parameter are used to follow all the expected smart sensor features.

The functions are incorporated into smarter, smaller and more complicated integrated systems in Phase II. By using micro processing techniques one of the enabling functioning about smart sensor systems is this increased difficulty can be achieve along with less expenditure than that of larger, hand assemble systems.


Future Applications of smart sensor system

Smart systems deal with societal, environmental and economic challenge like climate change, limited resources, globalization and population ageing. From these reason they are increasingly used in a large number of sectors. Key sectors in this perspective are healthcare, logistics, energy, transportation safety and security, manufacturing and ICT.

Smart sensor systems potentially represent a new invention of sensing capability, and self-awareness that are necessary components of future smart systems. Smart sensor systems can allow intelligent systems, which can supervise themselves and react to change conditions performance and optimizing safety.



Jyoti Ahlawat, 

Assistant Professor

ECE Department


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