Tag Archives: smart sensors

Controlling fish farms water quality with smart sensors in Iran

The fish farming industry in Iran has rapidly grown within recent years, doubling employment rates and multiplying its production. This activity began with the enhancement of the quality of fish species selected from the Caspian Sea and then continued through the development of intensive aquaculture utilizing different foreign species. Investing in the development of earth ponds, reservoirs and sea cages has become crucial for the local government, which supports the private sector by providing low rate interest loans and suitable land at competitive prices.

Location of Iran

Location of Iran

The Iranian Caspian Coast is one of the main pisciculture producing areas in the country and its territory is full of breeding pools. These ponds are filled on average once a year and then emptied at the end of the breeding season. This makes water quality control extremely important for the productivity and correct functioning of the fish farms.

Afarinesh Samaneh Mehr Engineering Co. (ASM), Libelium official distributor in Iran, is active in a variety of fields including smart city, smart environment, smart agriculture, smart husbandry, safety, and security, among others. The company has developed a Smart Water sensor network to measure the water quality parameters of the fish farms in the North of the country.

Smart Water Sensor Network installed at fish farm in Iran

Smart Water Sensor Network installed at fish farm in Iran

Water pollution is the first cause of financial losses in the market. The main objective of this project was to control water quality parameters in order to increase quality and productivity as well as to reduce costs and increase profits. Having information about water quality parameters in fish breeding ponds offers the fish farmers the possibility to manage their installations in an improved and more effective way, accelerating their inner processes.

Experts list a large number of parameters that must be taken into account in order to favor aquaculture productivity. The pH and dissolved oxygen levels are some to consider. Additionally, other chemistry limits are also recommended to protect the health of fish, such as ammonium and nitrite, the main indicators of toxicity created by the feces of fish.

ASM Engineering Team during the installation of the Smart Water monitoring system

ASM Engineering Team during the installation of the Smart Water monitoring system

In this project, the company ASM installed four Waspmote Plug & Sense! Nodes to measure water quality parameters:

  1. Waspmote Plug & Sense! Smart Water (2 units)
  2. Waspmote Plug & Sense! Smart Water Ions (2 units)

Each pair of nodes were mounted in a buoy and located in different locations inside the breeding pond in order to cover the biggest possible area in the pool.Taking into consideration the nature of the project with all nodes installed inside the fish farm ponds, the ASM engineering team decided to use solar power in order to ensure a continuous energy supply.

Waspmote Plug & Sense! Smart Water and Smart Water Ions mounted on a floating system

Waspmote Plug & Sense! Smart Water and Smart Water Ions mounted on a floating system

In this project, the values to control were:

  • Water temperature
  • Dissolved Oxygen
  • pH
  • Ammonium
  • Nitrite

Communications diagram of ASM Smart Water project

Communications diagram of ASM Smart Water project

Communication protocol between the devices and the gateway was LoRaWANand between the gateway and the cloud platform, cellular 3G. ASM used Loriot network server for handling LoRaWAN connectivity, being the platform used for visualization Thing+, which allows real-time control of parameters and also obtains diagrams and tables showing sensor values.

ASM Dashboard developed in Thing+ Cloud Platform

ASM Dashboard developed in Thing+ Cloud Platform

Reduce casualties and increase productivity

The return on investment (ROI) of this project includes:

  • Reduction of production costs
  • Time savings
  • Reduction of casualties
  • Increase in productivity

The highest mortality rates in aquaculture are due to the quality of water, and monitoring the water conditions can reduce by 30% to 40% of the casualties. This is also essential to meet international regulations to assure fish quality and farming conditions.

Dissolved Oxygen graphic obtained from ASM Dashboard

Dissolved Oxygen graphic obtained from ASM Dashboard

Thanks to this system, fish farm facilities can demonstrate that implementing their monitoring methods and automating their activities will put them in a much better market positioning than others that are still working in a traditional way.

ASM highlights that Libelium’s sensor platform offers the following key factors:

  • Low power, versatile and semi-autonomous devices.
  • Wide range of sensors and measurement probes.
  • Ability to support standard radio and (secure) communication protocols.
  • Ease of integration with cloud based solutions.
  • Reliability and durability of the IoT platforms and sensors.
  • Accessibility to embedded software platform (open source or otherwise).
  • Affordability of the nodes.
  • Simple and easy installation and deployment of the nodes on site.

The ASM Engineering Team was completely satisfied after the installation of the system. “We succeeded in completing this project with Libelium products and we are fully satisfied with this equipment”, comments Ali Bordbar, Marketing & Business Development Manager at Afarinesh Samaneh Mehr Engineering Co.

Source: Libelium

Smart Sensors and Wireless Connectivity Can Provide a World-Class Waste Management Service

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During the holiday season, or just on busy weekends, you’ve probably gone out for a walk only to be met with overflowing trash bins. It does nothing for the ambiance. Streets marked by litter and noxious smells detract from quality of life and give a poor impression to tourists (to say nothing of the associated health hazards).

It’s an obligation for municipalities and authorities to ensure litter-free streets, of course, but balancing that necessity against increasingly squeezed budgets isn’t easy. Even wealthy cities are struggling to provide basic services, and a large town will typically spend about $15 million per year on waste collection. Ensuring an efficient waste management strategy can result in significant cost reduction—but many cities are left frustrated as they grapple with how to improve efficiency.

Wasted Resources and Intelligent Waste Management
Waste and recycling are typically collected using fixed routes and schedules, without taking into account whether bins are actually full. This can leave trash brimming over in popular commercial locations, with cities incurring additional costs since collection teams must make emergency visits to these areas, even as they waste time at low-volume sites that don’t need attention but are on the scheduled route.

Smart bin sensors and mobile connectivity offer a new way of monitoring collection sites. Sensors can be fitted to any container in a matter of seconds, allowing cities to closely monitor fill data. This monitoring is usually performed by ultrasonic technology that can automatically detect different surfaces and waste types. The collected data is then transmitted wirelessly to the cloud, where it can be used by waste management companies to not only monitor when containers need emptying but also to provide insight into popular locations and usage patterns.

This system essentially allows waste management administrators to create demand-based collection routes, increasing or decreasing collection during weekends or busy seasonal periods, for example, or altering fee scales according to usage. Some sensors can even measure internal temperatures, meaning that garbage bins approaching critical levels can be attended to.

Sensor Technology for a Smart City
Bin sensors are sometimes equipped with SIM cards, which means that they can use existing telecommunications networks to communicate with waste management companies. New sensors connected via low-power wide area technology offer a long-term, cost-effective solution.

In short, IoT sensors provide a better option for cities looking to maintain sustainable, connected growth. And despite being non-mission-critical, data from these devices is still collected in near-real-time. Drivers can receive information directly on a tablet or smart device and alter routes on the fly. So, for example, instead of visiting four bins—two of which are 90 percent full, and two of which are only 20 percent full—as would be the case on a traditional route, an optimized route would only require a visit to the two full bins. This cuts the collection route by 50 percent, resulting in significant savings in terms of fuel and driver hours.

Short-term and Long-term Benefits

Smart waste management based on this technology has reduced direct costs by up to 50 percent, and some city projects have seen a total cost reduction of up to 80 percent, including significant savings on fuel, driver hours, and equipment wear and tear, not to mention lower exhaust emissions, a reduced carbon footprint, and a cleaner, healthier environment for citizens. As each sensor is equipped with GPS tracking, the exact location of every container is always known as well, preventing lost and stolen bins, which can add up to a significant annual cost for municipalities.

Nor does it end there. Over time, data can be analyzed further, providing a benchmark for:

  • Predictive forecasting;
  • Fill level trends and history;
  • Insight into weights and volumes of trash over specified time periods; and
  • Seasonal fluctuations.

In the future, technologies may become even smarter by, say, recognizing different types of trash, thus predicting the value of recyclables at each location, or even using social media to broadcast their status, allowing citizens to choose which locations they will use when recycling.

For municipalities moving towards smart city status, such intelligent monitoring can transform waste management policies, not only reducing monetary costs and strain on time and resources, but creating a world-class environment for citizens and visitors alike.

Co-Star the UK based distributor to the ICT industry supply the full range of Sierra Wireless Gateways to make connected smart city initiatives a reality.