| 摘要 |
The present invention is related to systems of security and anti-theft alarms for automotive vehicles that require minimal modifications in the systems normally contained in the vehicles in which they are installed. Said system avoids theft by two actions: the blockings of the wheels upon lacking pressure in the air system of the brakes and the disconnection of the electrical system of the vehicle from its source of energy and the same time it makes visible a legend, a figure or both, that in normal conditions are invisible, that indicate that the unit was stolen or attempt to be stolen. The system is formed by a) a receiver speaker that issues an acoustic signal to indicate that the system is activated, and that controls the action of all the system; b) a subsystem that stores and can send a liquid chemical compound, called revealing liquid, to some injectors that direct the liquid towards c) an impression of an image, text or both, on one or several visible faces of the vehicle in which the system is installed. The impression is made with a resin that is normally invisible to the naked eye, and that in contact with the liquid of the subsystem b) turns visible.
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