RU147061U1 - CODE MODULE BYPASS OF THE STABLE CAR IMMOBILIZER - Google Patents

Abstract

A code module for bypassing a regular car immobilizer, containing a key chip or key, as well as an antenna that transmits information to the antenna of a standard car immobilizer, characterized in that it contains a code input unit made in the form of a clock button or a set of buttons in the form of a keyboard, contains at least one transmitting device, while the functions of the transmitting device can be performed both by a separately installed device and by a device that is part of autostart systems containing at least one microco a troller, at least one power input, at least one input from the alarm to turn on the device during remote engine start, programmatically containing at least one code channel output to the receiving device, and also contains at least one separately installed receiving device, containing at least one microcontroller, at least one power input, at least one electromechanical relay or an output to it, allowing to restore the circuit of the transceiver antenna, and also programmatically containing at least one input from the transmitting device, and the operation of the transmitting and receiving devices is coordinated through a wired code channel that transmits an individual predetermined code to the receiving device.

Description

This utility model relates to the field of electrical equipment for automobiles and is used in external automatic and remote start systems of internal combustion engines.

Bypass modules of the standard car immobilizer are widely used when implementing remote start on cars equipped with the RFID (radio frequency identification) system, to temporarily turn off the standard immobilizer using external devices (car alarms, GSM modules, standard organization modules for launching, etc.).

An RFID system is an identification method that includes a device reader and a transponder (tag). The specified system, for example, is described in detail in the article “Modern Technologies of Radio Frequency Identification” (Security Systems Journal 2,2004 pp. 72-76, 3, 2004 pp. 82-85, 4, 2004 pp. 80-84).

Auto-start systems are also widely used in the field of automobile electrical equipment. An example of an automatic start system is, for example, the Altonika engine remote start system, which provides the ability to connect a bypass module for a standard immobilizer (12 Volt magazine, September 9, 2004, Intelligent Autostart). Remote engine start systems are convenient for car owners to use due to the fact that they allow you to turn on the ignition of the car at a distance without inserting the ignition key. This is done for the convenience of the car owner, for example, it is possible to turn on the ignition of the car and "warm" it in the winter.

The StarLine BP-2, StarLine BP-3 (www.ultrastar.ru/948/) modules containing the central unit and the loop antenna, as well as the Pandora DI-02 module (www.alarmtrade.ru/catalog / 50 /), containing the main unit with a power source and one microcontroller, as well as 2 antennas.

The principle of operation of most lineman is simple. A transponder is installed in the standard ignition key, the code of which is transmitted to the immobilizer to start the engine. When implementing autostart systems, these bypass modules of the standard immobilizer allow you to disable the standard immobilizer and start the engine remotely by using two frame (wire multi-core) antennas, one of which reads information from the built-in chip key, and the other transfers this information to the antenna frame of the standard immobilizer for disable locks and enable engine start, located either on the ignition or in the on-board electronics control module.

Closest to the claimed bypass immobilizer bypass module is the module according to US Pat.

The disadvantages of the known analogues is the startup mechanism, i.e. deactivating the standard immobilizer by transmitting information from the bypass module of the immobilizer: in all known modules of the bypass of the immobilizer there is a power cable, supplying power to it separately from the onboard network, the relay built into the circuit of the bypass module of the standard immobilizer is closed, which makes it possible to read information from the chip key and transfer the immobilizer to the antenna frame, thus deactivating it, which allows the vehicle to start the engine.

The task to which the claimed technical solution is directed is to create a safe mechanism for the implementation of autorun by improving the technical device of the known bypass modules of a standard immobilizer.

This problem is solved due to the fact that the code module bypassing the standard car immobilizer contains a key chip or key, as well as an antenna that transmits information to the antenna of a standard car immobilizer, and differs in that it contains a code input unit made in the form of a clock button or a set of buttons in the form of a keyboard, contains at least one transmitting device, while the functions of the transmitting device can be performed by either a separately installed device or a device that is part of autostart systems, with holding at least one microcontroller, at least one power input, at least one input from the alarm to turn on the device during remote engine start, programmatically containing at least one code channel output to the receiving device, and also contains at least one a separately installed receiving device containing at least one microcontroller, at least one power input, at least one electromechanical relay or an output to it, which allows restoring twist the chain of the transceiver antenna, as well as software containing at least one input from the transmitting device, and the operation of the transmitting and receiving devices is coordinated via a wired code channel that transmits an individual predetermined code to the receiving device.

The technical result, which provides a solution to the problem, is the inability to deactivate the vehicle immobilizer by supplying power to the bypass module of the immobilizer and thus restore the network of the transceiver antenna, which is achieved through the use of two devices as part of the module, installed separately from each other and connected by a wired code channel, while the activation of the receiving device and disabling the standard immobilizer occurs only after receiving conductive device from the true individual predetermined code transmitting device. If power is supplied to the receiving device, as is the case with the well-known standard immobilizer bypass modules, the receiving device will not be activated and will not send the correct code to the standard immobilizer due to the fact that the individually set code will not be transmitted from the transmitting device.

Also, the declared immobilizer bypass code module is protected from code selection by limiting the number of input attempts and the time interval between them, which is ensured by the operation algorithm embedded in the microcontroller.

The transmitting device can be installed separately from external devices, as well as in a block architecture, built directly into the body of an external device to ensure the secrecy of using the code channel for controlling the receiving device.

The claimed code module bypassing the standard vehicle immobilizer is illustrated by the attached drawings.

In FIG. 1 shows a diagram of a code module for bypassing a standard car immobilizer.

The scheme of the code module bypassing the standard car immobilizer includes a transmitting device (1) with a code input unit (3), and also contains a receiving device (2). The transmitting device comprises a microcontroller (4), a power input (5), an input from an alarm (6), an output of a wired code channel to a receiving device (7). The receiving device contains a microcontroller (8), a key chip, go key (9), an antenna that transmits information to the antenna of a standard car immobilizer (10), a power input (11), an electromechanical relay / output to an electromechanical relay (12), an input of a wire code channel from a transmitting device (13) connected by a wired code channel (14).

The code module bypassing the standard car immobilizer works as follows.

The transmitting device is used to transmit the specified individual code to the receiving device, when checking the correctness of which the receiving device is turned on and deactivates the standard vehicle immobilizer.

If there is a wire break in the code channel, or an attempt is made to select a code, i.e. the allowed number of attempts to enter the code is exceeded, the receiving device will be blocked and will not allow reading the code from the chip key to the immobilizer antenna frame, and if the code is entered incorrectly, it will block the ability to transmit the code for 1 minute.

In the main mode, an external signal of negative polarity is supplied to the input of the transmitting device, the transmitting device transmits a code through the code channel to the receiving device, it, in turn, turns on the output channel (electromechanical relay or output to it) for the time the signal is present on the transmitting device and constantly transmits the code over the code channel to the receiving device. If the signal to the receiving device stops, then the code ceases to be transmitted through the code channel, and the receiving device turns off the output (electromechanical relay or output to it). If three times in a row there was an attempt to select a code on a code channel, the device stops responding to code entry and code transmission on the code channel for 1 minute, after which you can enter the code again. At this time, the receiving device switches off the electromechanical relay or the output to it.

When using the code module for bypassing the standard car immobilizer, before installing it, a code is set from 1 to 8 characters in length, consisting of numbers from 0 to 9. The specified code can optionally be replaced with a new one. After applying power and entering the code to the transmitting device, after 10 seconds the code change mode will be activated, the code length is first entered, i.e. the number of characters, then a code consisting of numbers from 0 to 9 is directly entered, the specified operation to enter the code length and the code itself must be repeated twice in order to eliminate errors. After re-entering the new code will be accepted by both the transmitting and receiving devices, i.e. It will automatically change on all transmitting and receiving devices, after which the program menu will exit.

Claims (1)

A code module for bypassing a regular car immobilizer, containing a key chip or key, as well as an antenna that transmits information to the antenna of a standard car immobilizer, characterized in that it contains a code input unit made in the form of a clock button or a set of buttons in the form of a keyboard, contains at least one transmitting device, while the functions of the transmitting device can be performed both by a separately installed device and by a device that is part of autostart systems containing at least one microco a troller, at least one power input, at least one input from the alarm to turn on the device during remote engine start, programmatically containing at least one code channel output to the receiving device, and also contains at least one separately installed receiving device, containing at least one microcontroller, at least one power input, at least one electromechanical relay or an output to it, allowing to restore the circuit of the transceiver antenna, and also programmatically containing at least one input from the transmitting device, and the operation of the transmitting and receiving devices is coordinated through a wired code channel that transmits an individual predetermined code to the receiving device.