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To improve the recycling rate of waste, Sanico installs RFID on its garbage collection trucksReader, and provide recycling bins with embedded passive EPC UHF RFID tags for residents participating in garbage collection.
Sanico is a garbage collection service company in Northwest New Jersey. After installing the waste recycling solution based on RFID technology, by recording the residents’ participation in waste recycling and reducing the waste management fee they pay, the local waste recycling rate has been improved to a certain extent.The solution includes an Aviant Systems passive UHF glued to a recycling tankRFIDTags, RFID readers installed on garbage collection trucks and on-board computers, which process the data read by the readers and forward the data to Aviant servers via the cellular network.
Sanico is responsible for recycling for approximately 15,000 residents in Warren, Sussex and Hunterdon counties.
An Impinj Speedway Revolution RFID reader and an on-board computer are installed on each recycling vehicle.
Sanico provides two garbage collection tanks for local residents, one for paper waste and the other for gold, plastic, glass and other waste. The company actively seeks ways to encourage residents to actively participate in garbage collection, hoping to directly rebate to residents to increase their enthusiasm.
Initially, Sanico installed the Aviant Systems solution on two of its garbage collection trucks and conducted a one-year test with some residents distributing RFID-tagged recycling cans. The test results were good, and the company fully implemented the program. At present, RFID garbage recycling cans have been provided to 5,000 residents, and a garbage recycling plan has been signed with 2,000 residents.
Each truck is fitted with an Impinj Speedway Revolution reader, which is connected to the onboard computer via a GPS unit and 3G network. Two RFID antennas are mounted on the rear roof of the truck with an open top. Each 20 gallon recycling bin has a 4″ x 2″ adhesive label containing an Alien Technology Squiggle label with higgs3 chips. The labels are printed with the Aviant and Sanico logos, as well as barcodes, and are covered with a thin sheet. Labels are attached to the front of the recycling bin to protect it from bad weather.
Each tag has a unique ID code and is associated with the resident’s ID code. The latter is stored on the Aviant server as well as in the database of the on-board computer. When the garbage collection truck recycles garbage, the RFID reader on the vehicle reads the tag data on the recycling tank and forwards it to the on-board computer, and then forwards it to the background server through the 3G network.
Based on the above data, Sanico collects statistics on residents’ garbage recycling and calculates the remuneration that residents should receive for participating in garbage recycling.
There are certain challenges in the implementation of this UHF RFID technology-based garbage collection solution. First, the choice of RFID reader. The reader that was originally selected not only reads the RFID tags on the recycling tank, but also reads the tags attached to the recycling tank and the tags attached to the garbage in the tank, which greatly affects the reading accuracy of the reader. To this end, the company uses the Impinj Speedway Revolution read-write module, which provides filtering functions to eliminate redundant data.
The label pasted on the recycling drum is embedded with a 10-digit ID code. If the ID of other labels is read, it can also be filtered out according to the number of digits in the code. In order to increase the readiness rate of the reader to read data, the tag information is only read when the recycling bin is lifted to the height of the antenna, so as to prevent the tags of the nearby recycling bin from being read.
The adoption of UHF RFID technology has increased the amount of waste recycled, Sanico said.
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