| 摘要 |
Electronic device for monitoring the blood alcohol level of the driver and the speed of a motor vehicle. This electronic device for monitoring the blood alcohol level of the driver and the speed of a motor vehicle, is intended to be fitted in light or heavy, petrol-, gas- or oil-driven vehicles. Its purpose is not to allow the driver to use the vehicle without first performing a blood level test. It is formed of two units, primary and secondary. The primary unit consists of an electronic circuit measuring the concentration of alcohol contained in the air passing through the detector, and a pressure switch, which is activated whenever the analyser's mouthpiece is filled with air for testing. The secondary unit contains an electronic module consisting of a timer, a second module consisting of a control operated via the intermediary of two photo- electric cells and a mechanical speedometer, whose rotor controls the said cells. This unit also controls an electromagnetic valve fitted on the fuel supply pipe, which opens or closes the feed as instructed by the primary or secondary unit as well as the speedometer. The system is planned for official approval. The speedometer is coupled via a standard speedometer cable to an adaptor created for the purpose, which on receiving a command from the gear-box, in the usual position, also operates the existing speedometer cable in the vehicle. <IMAGE>
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