Microtek Digital Video Camera Manual de usuario descargar pdf (Pagina 2)

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In the following sections, we describe the car in terms of its hardware, software and its human inter-

face. Producing a plausible human interface was the most challenging part in some ways, considering that

the base car used is meant to be a toy for someone with the reflexes of a video game trained teenager. We

also discuss some thoughts on a two way telepresence and on the use of slow frame rate video, in general.

2. The Hardware

Figure 1: The remote controlled car

The hardware (Figure 1) consists of a radio controlled model car about eighteen inches long with a stock

motor, 1 to 7 gearing (slower than normal), and a solid state speed controller. On the car we mounted a

Sony 999 video camera and a Microtek 915 Mhz video transmitter. The Microtek transmitter is also used to

transmit audio from the car. A separate transmitter can send audio to the car, but we don’t as yet have a

computer interface for the audio to the car.

The camera is mounted about eighteen inches above the ground rather than directly on the car to give

a more realistic driver’s eye view. (Even though the car is a scale model the world around it is not. The

ankle height of a scale position camera gives a very strange world view.) We slightly modified the 75 Mhz

AM radio transmitter so that it could be connected to a custom made computer interface. The radio trans-

mitter conventionally used two joysticks, one for the throttle the other for steering.

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Microtek Digital Video Camera Manual de usuario Pagina 2