| 摘要 |
The present invention is a certificate of addition combining an electronic unit with at least one inertia-monitoring compact electronic detection module, preferably produced using a mercury switch, responding to at least three mechanical excitations: - 1) Non-linear movements (manipulations of the door handles) - 2) Vibrations (characteristic shockwave: in the case of interest to us, this involves a blow of medium intensity not leading to breakage of the glazed surface (attempt to break windows), etc. - 3) Accelerations brought about by an abrupt change in attitude (e.g.: removing a wheel). The said module being combined, via a carrying current, with the said unit whose main function is to manage at least one electrical pulse in at least one predetermined time delay cycle in order to trigger at least one acoustic and/or luminous device in a specified time-delay cycle, it being possible, in one version of the invention, for the assembly to be integrated with a compatible device for closing and opening doors. <IMAGE> |
