I would like to create a robot

I would like to create a robot that will be used to aid people with vision impairment. My robot would be programmed to do small tasks around the home that a blind person would find difficult to do. Speak recognition would be an important part in the communication process between robot and user. Some of the tasks that I would like to experiment with are listed as follows:

1. A robot that can clean and vacuum floors on a users voice command.
2. A robot that can use a camera to see objects or identify dangers in the home and warn the user.
3. A robot that can monitor the house when a vision impaired person is home alone.

Robots are a wonderful tool for enjoyment, but they also have unlimited possibility in the health care sector and with the Ezrobot system we maybe able to see such technology helping others in the not too distant future.