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Intelligent Buffet (IB)

Last modified: 27.01.2016

Intelligent buffet (IB)

The intelligent buffet comes in a mobile (mIB) as well as in a stationary version (IB). The technology is designed to automatically detect food choices under experimental conditions in the FoodscapeLab or outside the lab under field conditions - living lab foodscapes. which is divided into an COOK, EAT and SERVE area. It is a traditional buffet, there has been further developed and equipped with 8 scales and sensors based on RFID technology. The technology builds on the insights from the Dietary Intake Monitoring System (DIMS) that offers intelligent monitoring of food intake technology (Ofei et al 2014). The IB operates without the digital cameras but uses the same scales and RFID reader technology. In the IB exeperiment. The subjects in the experiment will be enrolled and is given a RFID bracelet so that an experiment can easily register events at the buffet. The sensor will detect the person via the bracelet, and the amount taken from a particular scale. The structure of the output can be seen in the table. To sort out any disambiguates in the output recordings from overhead cameras connected to Observer XT software can be used. In the mobile version the scales come as stand alone scales that can be placed as needed in the food environment.  A typical IB experiment setup is as follows. First the protocol for the trial is developed describing what kind of hypothesis to test. When the action has been defined and IB is set up, the test subjects are recruited. Video recording equipment set up to record the full experiment as an extra security. The test persons are registered and enter the EAT-area of ​​the laboratory. They make their food choices, while their behavior recorded by IB controller software and the overhead video cameras. Apart from the requirement that people use their RFID tag before they take the food - there is nothing unusual and therefore minimum bias. When the experiment a complete, researchers and students retreat to ANALYTICS area and analyze data eg. in terms of nutrient content or climate impact.