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Avfall S?r Husholdning AS is responsible for the treatment of domestic waste of 45,000 residents in Kristiansand, using RFID technology-based waste recycling and sorting solutions, which are provided by AMCS Group in Ireland .
AMCS has provided IoT RFID solutions since 2003, mainly supplying waste disposal departments in Europe and North America. The RFID technology-based garbage collection and sorting solution not only manages the garbage collection process, but also enables accurate billing and refuses to dispose of garbage from unpaid residents. The system adopts 125KHZ low frequency RFID tags provided by HID Global. Stick the label on the outside of the waste bin, and the AMCS RFID reader is installed on the lift gripper of the truck. In the US, AMCS uses UHF tags from other suppliers.
AMCS has customers around the world with approximately 9-10 million labelled bins. The label information is read when the recycling truck gripper picks up the bin. The recycling vehicle can detect whether the residents of the garbage bins have paid for it, and will not process it for paying customers, and send the unpaid information to the residents’ mobile phones. In addition, the system can also detect whether the garbage bin is overweight, so as to determine whether it contains non-recyclable garbage.
The low frequency (125KHz) label is affixed to the opening of the dustbin lid, usually added by the dustbin manufacturer. The tags are read from a few feet and have a lifespan of more than 8 years.
During the garbage collection process, the RFID reader reads the tag information, weighs the garbage bin at the same time, locates the GPS device, and then sends the tag ID, weight, location, time and other information to the background database through the wired network. The application system in the AMCS solution is installed on the user server or directly provides a public service platform for access. Customers are more inclined to use SAAS (software as a service) services, which can reduce operating costs.
After the system is adopted, the efficiency of garbage collection is greatly improved, and the number of recycling vehicles is reduced by 10% to 20%. The lifting handle of the recycling truck lifts the garbage bin, the reader reads the tag information, and sends the tag ID to the background database and the random computer on the truck to determine whether the residents of the garbage have paid for it. If payment is not made or the fee is due, the recycling truck stops recycling and the bin is placed on the side of the loop. The speed and accuracy of label reading directly affect the efficiency of the recycling vehicle, so the solution should fully ensure the reading effect of the label.
The random computer on the recycling vehicle provides real-time information for the driver and the management background. From this computer, you can find out the reason why the trash can was rejected, and the staff will report to the company based on this information. At the same time, if the label fails or the bin is misplaced, remind the staff to stop the operation.
According to the Avfall Sr Husholdning report, 90,000 bins have been labelled so far. Most residents have three bins, one for organic waste, one for recyclables, and one for other waste. The recycling route includes 17 recycling vehicles, handling only one type of bin at a time. In addition, garbage collection companies charge differentiated fees based on data such as the amount of garbage in the garbage can.
In Europe, low-frequency tags are used in the solution, while in the United States, the setting of the recycling vehicle is different, the distance between the tag and the reader is larger, and the UHF tag is used, but there is a drawback, the transmission reliability of UHF in a metal environment lower than the low frequency label.
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