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7 Most Commonly Used Sensors for Developing Industrial IoT Solutions

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7 Most Commonly Used Sensors for Developing Industrial IoT Solutions

Sensors have been used in different industries for varied purposes for a long time now. However, IoT (Internet of Things) solutions created a need for the next generation sensors; loaded with features to solve the modern-day automation challenges.

The IoT sensors are smarter and have the capability to communicate with other sensors and remote computers as well.

The paradigm of connected things has made sure that industries are able to work intelligently with an enormous amount of data being collected by the IoT sensors.

As data is at the crux of an industrial IoT setup, the role of sensors is imperative to making the entire ecosystem smarter. The industrial IoT solutions are being developed keeping the huge inflow of data in mind.

Industrial IoT Sensor 1
 
Big strides in material technology have ensured that the sensors are more accurate, low on cost, power requirements and of reduced size. As most industrial IoT applications are far from the control centre, the sensors needs to have a very low power footprint.

They are now able to collect a variety of data thus enabling the industries to work with enhanced efficiency.

The IoT sensor market is going to touch $9900 Mn mark by the year 2026, according to a report by Persistence Market Research. The figure clearly indicates how the industrial IoT solutions are poised to bring about a substantial change in industrial automation.

This blog is an attempt to shed light on some of the most used sensors in the industrial automation application of the Internet of Things.

Industrial IoT Sensor 2

Source: WPC

 

Types of IoT Sensors Required for an Industrial Automation Solution

  • Smoke Sensors: They have been in use for a long time but their integration with the IOT industrial automation solutions has created some interesting use-cases.

    These sensors find widespread use in applications like HVAC, construction site monitoring and the industrial units where a chance of fire and gas leakage is on a higher side.

    When smoke sensors are integrated with an industrial IoT solution, even the slightest leakage of gas or minor occurrence of fire can be reported to the concerned team and major disaster can be averted.

    Companies like Heiman and Nest Protect manufacture smart IoT smoke sensors for both home and industry applications. These Zigbee or WiFi enabled sensors cost anything between $2 to $10 depending on the quality.

  • Proximity Sensors: As the name suggests, these sensors measure the distance from itself and the nearest object. They are most commonly found on the car bumpers to alert the drivers in the case of an imminent collision.

    Proximity sensors also find application in the retail industry where the customer is informed about the discount as he or she walks near a product.

    Other use cases are assembly lines of different industries like food, chemical, machine tools and many others.

  • Infrared Sensors: Infrared sensors are essentially used to detect human presence.

    Infrared sensors have been deployed for Military applications extensively but over the few years, IR sensors integrated with the industrial IoT solution are finding applications in other industries as well.

    As these sensors can detect any infrared radiation including heat, they are deployed in electronics, chemical, and healthcare industries to name a few.

    Asahi Kasei Microdevices (AKM), Murata, Melexis MLX90614, Intersil ISL29021 are among the few IOT IR sensors used in Industries.

  • Piezo Sensors: The piezo sensors measure pressure and when integrated with an IoT solution can send data related to pressure changes in real time.

    Using these sensors, we can develop an industrial IoT system that is capable of monitoring pressure in pressure-critical equipments such as boilers, water systems, aerospace, oil drilling systems and more.

    Pressure Systems Series 960, 970, Paroscientific Inc. Series 1000, 2000, 6000, Environdata BP10 Series are some of the most commonly used pressure sensors in industrial IoT applications.

  • Temperature Sensors: Temperature sensors are among the most widely used sensors in industrial IoT applications.

    They find their use-cases in numerous industries that include FMCG, pharmaceuticals, biotechnology, and others where temperature-monitoring is crucial.

    Melexis MLX90614, Environdata TA40 Series, Geokon 4700 are the top picks for temperature sensors in industrial IoT applications.

  • Optical Sensors: Optical sensors are one of those sensors that are capable of sensing more than just light.

    The underlying technology of these sensors lets it monitor any kind of electromagnetic radiation, i.e. light, electricity, and a magnetic field etc.

    Telecom, elevators, construction, healthcare, safety systems are some of the Industrial automation applications of Optical Sensors.

    Vishay’s VCNL4020X01 and TCxT1600X01 are optical sensors designed specifically for the industrial IoT applications.

  • Image Sensors: Image sensing has the power to revolutionize industrial automation in lot of industries like healthcare, transportation, and more.

    When integrated with the Internet of Things (IoT) enabled system, these sensors can help in monitoring of hospitals, factories, and more.

    These sensors can measure blood pressure with every beat, read the variation in pressure over the entire day and help in the prevention of cardiovascular diseases.

    In the transport sector, image sensors can help prevent train collision by alerting the driver of an approaching train on the same track..

    Omron and Invisage are two pioneers who are implementing the image sensing technologies in IoT with great outcomes.

    These are not all. Many other sensors are being popularly deployed in industrial IoT solutions and a good number of them, capable of measuring other parameters, are in the process of development. IoT is undoubtedly the future of industrial automation and its potential will largely depend on how effective, efficient and smart the sensors are.

    One can easily imagine the prowess of IoT when the sensors will be able to collect and analyze the data that is still untapped.

Are you ready to automate your industrial operations with industrial IoT solutions? To know more about our IoT Development Services contact our IoT Consultants to book a free session to discuss how IoT solution can improve your industrial unit


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IoT Platform Development for a Solar Tracking System

About the Customer:

  • Our client, the Indian subsidiary of one of the Global Pioneers in Renewable Energy Generation, had a mandate to improve the efficiency of their existing open field deployments of solar panels.

 

Business Challenge:

  • The customer had deployed thousands of solar panels on the field. They wanted to increase the overall output by ensuring 100% alignment of the solar panels with the trajectory of the Sun (throughout the day).
  • This increase in the generated power was expected to translate into an improved RoI from the open field deployments.

Why was the existing solar energy tracking system not efficient?

  • The existing solar tracker, that was designed to harvest energy throughout the day, was following a single trajectory. Such a trajectory meant that the orientation of the solar panels (payloads) was not optimized as per the changing position of the Sun from dawn to dusk.
  • As a result, the estimated annual power generation numbers were not as per the expectations.

What was required to achieve the desired RoI from the field deployments?

A network of Sun-Position Algorithm (SPA)-based solar trackers had to be designed to ensure efficient harvesting of the Sun’s energy from dawn to dusk.

Additional limitations of the existing solar trackers:

  • The customer had a limitation with their existing solar trackers – Each tracker could manage only one block of PV-panels.
  • The customer also required a second block of PV-panels to be monitored using a single tracker.
  • This was necessary to ensure reduction in capex and increase system utilization.

The client realized that such a solar tracking system could be designed based on the architecture of Industrial Internet of Things (IoT) and would require expertise in wireless communication protocols, embedded software, hardware design, cloud application and web application development.

After multiple technology workshops and design sessions, our customer developed confidence in the experience and expertise of our IoT developers, designers and Industrial Automation experts.

This marked the beginning of our long-term and successful partnership with the customer.
 

Embitel Solution:

Our IoT and Industrial Automation teams developed the hardware & software for the embedded control systems that were integrated with Solar Panels.

Following are the details of the IoT project:
 

IoT platform development for network of solar trackers:

    IoT-Solar-Tracking-System-SCADA-solution-Embitel-Bangalore-Automation

  • The solar panels were connected to solar trackers (controllers) that changed the orientation of the panels based on the movement of the sun. The motion of the solar panels was regulated by the following input details:
    • Time of the day
    • Time zone
    • Location of the panel (based on GPS coordinates)
  • Our team also designed an IoT platform solution for a network of solar trackers. This IoT based solar tracking system communicated through ZigBee and WiFi wireless protocols and serial communication interfaces.
  • Our hardware design ensured that a network of eight solar trackers can be integrated on a single hardware board.
  • An IoT-enabled master-slave network was designed, wherein a master controller controls up to 24 slave trackers. This master controller also sends consolidated data to the centralized server.
  • We partnered with the customer for end-to-end design and development of the hardware board and firmware software for this Industrial Automation project.
  • The embedded hardware for the Sun tracking system is designed on NXP micro-controller LPC1768 platform.
  • The custom-built Industrial IoT gateway device is a linux based system designed on Atmel SAM A5 platform.
  • Device drivers for all serial communication are RS-485 based half duplex as well as full duplex systems.
  • Communication interfaces between master-slave solar trackers have been designed using industrial grade ModBus Stack.
  • A mesh network, designed using the XBee modules, serves as the primary mode of communication between the master device and the tracker devices.
  • A fallback communication channel has been developed for XBee connectivity, using the RS-485 communication link.

 

Embitel Impact:

  • The designed IoT solution successfully achieved all the objectives of our customer. It addressed their main concerns of efficient power generation and monitoring.
  • The Industrial IoT (Internet of Things) platform also helped reduce the cost of field operations.
  • Our customer was able to increase their field coverage, including the irregular corner and fringe boundaries.
  • There was more than 20% improvement in power output of the plant.

 

Tools and Technologies:

  • OrCAD design tools for schema development, HyperLynx– Signal Integrity, Power Integrity, and Thermal Analysis.
  • Atmel Linux development tool for the master board and Xpresso Eclipse IDE plugin for the tracker boards.
  • ModBus over RS-485- ModBus Stack in Master mode from Silas.
  • QT framework for PC-Application and ATS.


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EFY interviews Zach: Designing an IoT solution and latest IoT technology trends

Eletronicsofthings[dot]com, the e-magazine of the renowned EFY group, recently interviewed Zach Ninan, Head of the Competency Lab (Cloud, Mobility and IoT Solutions), Embitel Technologies, Bangalore.

This conversation started with the latest trends and advancements that are propelling the IoT revolution forward. Zach also shared details of the entire solution design process where he discussed IoT gateway device development, sensor networks, cloud back-end and mobile apps.

When asked about the relevance of automation, Zach cited the example of predictive maintenance that has helped improve operational efficiency and reduced downtime of critical business processes.

“The ability to monitor and optimize workflows constantly as per the needs of the business is an area where IoT is adding value,” he said.

Read the complete conversation here – Designing an IoT Solution is Akin to Creating Music

What is Internet of Things(IoT) ?

    IoT is the network of physical objects – devices, vehicles, buildings and other items embedded with electronics, software, sensors, and network connectivity-that enables these objects to collect and exchange data.

    Source:Wikipedia