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• W626582503 abstract "Abstract —Challenged and/or elderly people experiencinglimited mobility impairment may want to get support forwalking. In public, e.g., in a supermarket, they may want toget this support without it being immediately visible. Therefore,we integrated walking aid functionality into a robot shoppingcart. It can support a customer to lean on the cart while thewalking pace is controlled to follow a user-determined setting.More precisely, the user of the cart can get walking assistanceby holding specically designed handle bars supporting botharms. This construction is fully integrated in a prototypicalrobot designed as a shopping cart.Keywords—Walking aid; semi-autonomous robot shoppingcart. I. I NTRODUCTION Especially in an aging society, more and more (partial)challenges arise. Primarily elderly people often experiencechallenges with walking. As long as they can walk, however,they typically prefer some kind of walking assistance overa wheel chair. In public, they may even want to hidetheir challenge and to get such support without it beingimmediately visible. The latter requirement is hard to fulllwith a dedicated walking aid.We developed a (prototypical) robot serving as a shoppingcart and, from the very outset, we planned to integratea walking aid. When someone would use such a robotshopping cart, this very robot can serve both the usualshopping purposes and as a walking aid. Its motor power letsit drive to desired goods and help move loaded goods, andat the same time provide walking assistance. In addition tothe mode with the walking aid, the robot cart has a steeringmode, an autonomous mode and semi-autonomous modesfor guiding a user to certain products and for following theuser. Unless the robot is in the walking aid mode, its handlebars are in a locked position.This shopping cart is a companion robot designed toperform services in a complex and cluttered dynamic en-vironment, a supermarket, shared by humans and otherrobots. To share such an environment with humans and tocooperate with them requires certain communication abilitiesfrom the robot. Even our prototypical implementation forresearch purposes can handle multimodal input through atouch screen, speech input and a barcode reader [3], aswell as output through a graphical user interface and speechoutput [2]. It can even reinforce multimodal output through amotion cue [6]. The primary services that we implemented inthe prototype are management of a shopping list and guidinga user to the products from the shopping list.The remainder of this paper is organized in the followingmanner. First, we explain the design and implementation ofthis walking aid. Then we present an exploratory study withit. Finally, we discuss related work.II. W" @default.
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• W626582503 date "2011-02-23" @default.
• W626582503 modified "2023-10-12" @default.
• W626582503 title "A Walking Aid Integrated in a Semi-Autonomous Robot Shopping Cart" @default.
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