We’ve always said that “Sleeper” (1973), in which robots are the help, is Woody Allen’s most prescient film — now here’s a little proof. A new autonomous device, called the uBOT-5, is already capable of carrying out simple tasks while monitoring the home. The new, noncomplaining robot is being designed to help a graying America, as baby boomers start to retire. The device can spot trouble — like a person falling down — and call 911 if necessary. It can also bring a loved one into an aging person’s home via the Internet.