DE2558218A1 - Fail safe vehicle identification code - uses black box transmitter with coded output to match licence plate coding - Google Patents

Abstract

The vehicle is fitted with a black box master control circuit linked to the electric system. The box transmits a coded message by radio or laser with the code identifying the vehicle w.r.t. licence plates, chassis number etc. It enables the police to check the details and identify stolen vehicles. The black box is in a tamper proof mounting and is supplied with external power as well as internal, rechargeable batteries. If it is removed then the absence of a coded signal will also attract the attention of the police. Transfer of licence plates is easily identified by the police.

Description

Device for checking the identity of vehicles

The purpose of the invention is to monitor or locate one To facilitate the vehicle.

State of the art Vehicles have a chassis number, notor number and a police license plate, it is possible for experienced counterfeiters rotor - and Changing the chassis number and the appearance read daily is short-circuiting of ignition systems and replacement of license plates. Only through time-consuming review the police can provide details of such violators in stationary traffic come the trail.

The verification of the Vehicles-in flowing traffic through non-wired TRANSMISSION MEANS viewed.

Description of the invention (see system sketch) the mechanism is attached to the vehicle as an encapsulated system = (black box). The adapter surface The design between the black box and the vehicle results in a clear assignment of black box and vehicle. If the assignment is undisturbed, the result is signal X 1 The mechanism is operated by a car battery when the vehicle is being driven. Downtimes are bridged by a reserve battery. In addition, each must Vehicle "a socket" + (+ energy) available its around externally the black supply the box with power and thus call up the C O D E even if the reserve battery has been removed to be able to.

The signal X 2 is applied when the reserve batteries are OK and are built in. The reserve batteries can undergo TÜV inspections during their service life adjusted and exchanged and bleached during this examination.

A defect in the rechargeable battery would therefore also indirectly indicate an omission Interpreting TÜV investigation.

The signals X 3 a and X 3 b, which indicate the proper start and The operating phase signal are summarized in signal X 3 t.

X 3 is only available if the ignition is switched on with the appropriate key became. According to the equivalence function, X 3 is also when the vehicle is parked so that the coded identifier can also be called up when traffic is idle.

Functional scheme of the A quiva 1 enz E x3RT x3 $ T - 1 ~ lx3 X34 ~ ~ X3l. Hd t t8 The external request (e.g. at crossings, police checks) is recorded in the recipient of the black box and a distinction is made between two types.

In the event of a general question, the signal X 4 is sent and with X 1 to X 3 linked in a U N D element and an N A N D element.

Functional scheme of the AND w element 4 - t E7M-PLYLL / hY-LsYl b / ld l d - xaD XL1 fl xt J Functional diagram of the NAND element I. SM ~ n » ar T rt XzI Xi gg X'- »Xz - Depending on the position of the signals A 1 (coded identifier or A 2 (coded identifier + alarm) sent as a response.

The signal A 2 is only transmitted when one of the signals X 1 to X 3 does not exist. this means that a nanipulation was carried out on the car or something is wrong. The same applies if there is no answer at all - Signal is sent because the black box is then violently destroyed or removed became.

The signals A 1 and 4 2 are received by the inquirer and in a matter of seconds evaluated. The identification vehicle-specific statements result, comparable to the currently common engine and chassis number and the police number Mark. In addition, a special vehicle is available as a second option, E.g. to search from the helicopter. The S U C H - 5 1 G N A L, is used in the D e c o d e r of the recipient is processed and, if they match, also A 1 or A 2 sparked. In this way, a specific vehicle can be located. A 1 or A 2 can be accessed as often as required; however, A 1 or A 2 should be on first Request to be sent in order not to overwhelm the energy supply.

The black box is intended as a system that cannot be influenced from the outside.

In addition, however, the transmitter coding could be partially influenced provided for further information, e.g. due TÜV inspection, insurance appointments or to receive an emergency call.

Claims (3)

P A T E N T - Claims 1.) Device on the vehicle, characterized in that that by non-wired transmission media such as radio r laser -Ultrasehall- specific information that uniquely describes the vehicle in the form of a coded Identifier can be obtained 2) claims according to 1, characterized in that one retrieved information, information borrowed manipulations or other with there are irregularities associated with your operation of a vehicle. 3) Claims according to 1 and 2, characterized in that the coded Identifier ends only with a "similar C O D E request and is thus a certain vehicle can be found out from a larger set, or the position and movement of a vehicle can be determined.