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Remote assistive technologies are one of the most promising solutions for an aging society in the future. This paper describes a design of a remote assistive system to guide elderly to find and recognize hidden objects in a kitchen through ubiquitous technologies utilizing sensing and light projection. These intelligent technologies can play a vital role in taking care of the elderly with cognitive impairments when the caregiver’s lives or work far away. The main goal of this research is to provide visual guidance to elderly to overcoming the deficits of initiation, planning, attention and memory deficits while performing kitchen-based activities of daily living such as locating and identifying items for cooking. In a standard kitchen where objects can be placed in open and closed spaces, it is difficult for elderly with cognitive impairment to find and locate objects that are invisible and sometimes hidden behind other objects. In this situation the RFID technology can directly provide the location of the items and projection technology can display the image of the object at the exact location. An initial prototype has been developed and a user study with twelve elderly people has been conducted. The initial results show that the visual guidance makes the task of finding and identifying objects easier and simpler. Additionally, results show promise for further development and system can be used for other kitchen activities.

We present an eyeglass-type wearable device that has light emitting diode (LED) indicators on the frame of it. The device produces lighting patterns of 14 RGB LEDs near user’s eyes as guiding information. Since installed LEDs on the frame of glasses are light and saving power, it is feasible to develop it for daily use. On the other hand, it cannot provide rich information such as text or images. In this study, we aim to realize a remote assistive system that provides assistive commands by lighting patterns of the eyeglass-type device from remote sites. Especially, we consider elderlies who are suffering from mild cognitive impairment as users. They would be one of potential user groups since the device does not block their sights by text or images and it can be worn in daily life without the additional sense of restraint. This paper explains our conceptual assistive system structure, a prototype eyeglass-type device with near-eye LED indicators and usability experimentation in simple navigational tasks.