| 摘要 |
The present invention refers to an automatic system for data remote detection and transmission, particularly typical data related to liquid fuel tanks, for example, an indication of an amount of a liquid fuel flow contained in said tanks, e.g., the level thereof, through predetermined points, air pressure or vacuum in a cavity, efficiency checking of a cathodic protection or the like, the system comprising means (M, R, H, 13, 14, 15) connected to the tank for detection of typical data and its translation into electrical-type signals, a transmission means (2) of said signals to a central station (3, 5), synchronizing means (R, 8c) which enable the detection and transmission means (2, R, H, 13, 14, 15) to operate during a predetermined period of time. The detecting (R, H)-transmitting (2) assembly comprises a static control and an active interface circuit (c), without a basic pulse clock, which includes a mono-stable circuit provided in such a way so as to maintain, during the preparation phase, the detecting-transmitting means assembly (R, H, 13, 14, 15, 8a, 8b, 8c, 8d, 8e, 8f) in a closed condition with a very high insulating degree from electric power supply.
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