PRE2015 4 Groep4

Group 4 members

• (Tim) T.P. Peereboom 0783677
• (Marleen) M.J.W. Verhagen 0810317
• (Willeke) J.C. van Liempt 0895980
• (Victor) V.T.T. Lam 0857216
• (Huub) H.W.J. van Rijn 0903068

Introduction

(victor draft idea): In large hospitals, elderly patients and visitors may have trouble reading or understanding the navigation signs. Therefore they may go to the information desk to request help from human caregivers. A more efficient alternative could be: robots that guide elderly patients/visitors safely to their destination in the hospital. In this way, human caregivers can have their hands free to help elderly with more serious problems that robots cannot solve. Robots can guide elderly easily to their destination, when a map of the hospital is programmed into the robot. Even if the patient doesn't know what to do or where to go to, the robot gives clear instructions for example through touchscreen or speakers. In case patients really don't know what their destination is, they can scan the hospital member card with their appointments and inputs their destination in this way.

Elderly often feel lonely. Therefore the robot interacts with the patient by having a conversation during the guiding.

User centred

Scenario

An old man wants to visit his wife in the hospital. Due to the abbreviations of locations and his hunchback, he is having trouble with reading the signage, so he asks for help at the information desk. Here he is directed to a guiding robot. This robot carries a touch screen on eye level which asks the user to press "start". The man presses start and the robot asks him to put on the smart bracelet. This question is also displayed on the screen so people with hearing problems can understand the instructions too. The old man puts on the bracelet and presses "proceed". Now the robot asks where the man wants to go and the robot uses voice-recognition to indentify the user's destination. The robot guides the man trough the hospital to his destination. Because of the smart bracelet the robot can keep track of the distance between the user and the robot. When the distance gets too big, the robot will adjust its speed. When arrived at the destination the robot will ask the user if the desired location is reached. If so, the robot will leave the user. When the user wants to leave the hospital again, he can summon one using his smart bracelet. When a robot is finished with a guiding task, it will check if there are other people trying to summon a robot, otherwise it will go back to its base and recharge.

Requirements

Functional requirements

• The robot has to be able to reach each possible destination. Therefore it should be able to open doors and use elevators.
• It should be easy for a patient to give the desired destination to the robot.
• The robot should be able to calculate the optimal route to the destination.
• It should be clear for the patient that the robot is guiding the patient to the destination.
• It should be easy to follow the robot.
• The robot has to be able to detect if the patient is really following the robot.

Non-functional requirements

• The robot has to be able to avoid collisions.
• The patient should feel comfortable near the robot. Interaction with the robot should feel natural.
• The robot should have a low failure rate. It should work most of the time.
• If the robot stops working or in case of emergency, then it should be possible for the patient to contact help.

Stakeholders

marleen

hoi

User needs

Given that the user space is a hospital environment, a user would like to be treated with care. Therefor we stated a few things as necessary for the user. First of all the robot needs to behave in a friendly way. This means its way of communicating with the user should be as neutral as possible, such that the user feels at ease with the robot. Secondly, the robot should be able to adjust its speed to the needs of the user. For instance, younger people tend to be quicker by foot than elderly. The route calculated should be as safe and passable for the user as possible, with efficiency as second priority such that it does not take longer than necessary to reach the user's goal. Another thing the user needs is a way to communicate to a human if needed, think of situations like the robot being lost together with the user, it needs to be able to tell this to a human operator such that the user can be helped.

To do

onderzoek: interviews amigo gebruiken? navragen of dit mogelijk is