Google has written several programs for signal.
Google has taught test prototypes of unmanned air vehicles to emit a sound signal to alert other road users in different situations. This is stated in the monthly report of the division of the company, which is engaged in the development of Autonomous vehicles.
At the stage of developing prototypes Google has issued audio signals only inside the car. At the time, when electronics are considered the reproduction signal is needed, inside he heard the sound, and the company’s specialists captured the moment in the logbook. After the company conducted an analysis and found out in due time whether the car was giving the voice signals.
Google also wrote several programs for signal. For example, if the situation is not critical, the machine plays a little short for the length of sounds. This program is used, for example, when the neighboring car starts to slowly migrate towards a prototype.
If the situation requires an immediate alert of other road users, the Google car will play a loud and long beep.
In addition, the prototypes received audible signals to alert pedestrians and cyclists of approaching cars Google. This need is caused by the fact that the machine is equipped with fully electric propulsion systems and do not produce the sounds characteristic of cars with internal combustion engines.
