CN204659664U - A kind of automotive theft proof system with two-stage biological recognition function - Google Patents

Abstract

The utility model discloses an anti-theft system with two-stage biometric identification function, which comprises a built-in touch sensor of an automobile electronic key, a fingerprint identification chip and an unlocking signal generator. The unlocking signal receiver is connected, the door unlocking signal receiver is connected with the face recognition module through wires, and the face recognition module is connected with the engine starting circuit connection control module through signal wires. The utility model makes full use of the high recognition accuracy and uniqueness of fingerprints, and the difficulty of duplication of face recognition, and through the unique combination of two levels, it avoids the easy duplication of fingerprints when fingerprint recognition is used alone and the difficulty of face recognition alone. The recognition degree is easily affected by the respective defects of the environment. At the same time, through the reasonable combination of the two biometric technologies, the safety and anti-theft performance of the car is greatly improved.

Description

A car anti-theft system with two-stage biometric identification function

technical field

The utility model relates to an anti-theft system with two-stage biometric identification functions, which belongs to the technical field of automobile safety anti-theft.

Background technique

The car anti-theft system refers to the system set up to prevent the car itself or the items on the car from being stolen. It consists of an electronically controlled remote control or key, an electronic control circuit, an alarm device, and an actuator. The anti-theft technology of automobiles has always been an important issue in the field of automatic control of automobiles. The traditional door lock anti-theft system uses the chip in the remote control key to communicate with the chip in the car, and controls the opening and closing of the four doors after the communication. With the development of automatic control technology, at present, after the car anti-theft device with remote control function is pressed the unlock button, the car door can be opened. If the unlock key on the remote controller is pressed unintentionally, the anti-theft system of the car is released, and after a period of time, it enters the anti-theft state again, which gives the thief an opportunity. From the user's point of view, the car owner certainly hopes that when the unlock key of the remote control is accidentally pressed, the car must still be in an anti-theft state. Therefore, applying the above-mentioned anti-theft technical solutions alone cannot optimally protect the safety of the car, and thus cause losses to the car owner or driver.

Contents of the invention

The purpose of the utility model is to provide an anti-theft system with fingerprint and human face mixed recognition function, which is used to improve the anti-theft capability of automobiles, protect the property safety of car owners or drivers, and overcome the deficiencies in the prior art.

The technical scheme of the utility model: a car anti-theft system with two-stage biometric identification function, including a touch sensor built in the car electronic key, a fingerprint recognition chip and an unlocking signal generator, the unlocking signal generator is set on the car door through wireless signals The door unlock signal receiver is connected to the door unlock signal receiver, the door unlock signal receiver is connected to the face recognition module through a wire, and the face recognition module is connected to the engine starting circuit connection control module through a signal wire.

The upper end of the aforementioned fingerprint recognition chip is connected to the touch sensor, and the lower end is connected to the unlocking signal generator.

Due to the adoption of the above-mentioned technical scheme, the utility model has the advantages that: the utility model fully utilizes the high recognition accuracy and uniqueness of the fingerprint in the first-level fingerprint identification anti-theft system, and at the same time, after the first-level anti-theft system passes through, the utility model can use the second-level The face recognition in the secondary anti-theft system is not easy to reproduce. Through the unique combination of two levels, it avoids the defects of the easy copyability of fingerprints when fingerprint recognition is used alone and the recognition degree of face recognition alone is easily affected by the environment. At the same time Through the reasonable combination of two biometric technologies, the safety and anti-theft performance of the car is greatly improved. Therefore, the utility model is not only simple in structure and easy to operate, but also greatly improves the safety and anti-theft performance of the car through the two-stage biometric identification function, and protects the property safety of the owner or driver.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a working principle diagram of the utility model.

Explanation of reference numerals: 1-touch pressure sensor, 2-fingerprint recognition chip, 3-unlocking signal generator, 4-car door unlocking signal receiver, 5-face recognition module, 6-engine starting circuit connection control module.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

A structural schematic diagram of a car anti-theft system with two-stage biometric identification function of the present utility model is shown in Fig. The upper end of the identification chip 2 is connected with the touch sensor 1 , and the lower end is connected with the unlocking signal generator 3 . Unlocking signal generator 3 is connected with the door unlocking signal receiver 4 that is arranged on the car door by wireless signal, and car door unlocking signal receiver 4 is connected with face recognition module 5 by wire, and face recognition module 5 is connected with engine start by signal line. Line connection control module 6 is connected.

Working principle of the utility model

Referring to Fig. 2, when the electronic key of the car is touched, the built-in touch sensor 1 in the electronic key of the car starts to generate a touch signal, and the fingerprint recognition chip 2 starts to perform fingerprint recognition after receiving the touch signal. When the similarity value with the preset fingerprint reaches the preset value, the unlock signal generator 3 built in the electronic key of the car will send an unlock signal to the door unlock signal receiver 4. Identify and perform calculation processing, and after confirmation, the engine starting circuit connection control module 6 starts to connect the engine.

Further, only when the fingerprint recognition chip 2 confirms that the fingerprint is correct, the unlocking signal generator 3 will normally transmit the unlocking signal and be received by the door unlocking signal receiver 4. After the first fingerprint anti-theft system passes, the second face recognition The anti-theft system starts to work, and the face recognition module 5 begins to identify, and only when the similarity value of the facial features after comparison and the preset facial features reaches a preset value, the engine starting circuit connection control module 6 will turn on the engine. The vehicle can be used normally.

Claims (2)

1. one kind has the automotive theft proof system of two-stage biological recognition function, it is characterized in that: comprise the built-in tactile sensor of automotive electronic key (1), fingerprint recognition chip (2) and unlocking signal producer (3), unlocking signal producer (3) is connected with the door unlock signal receiver (4) be arranged on car door by wireless signal, door unlock signal receiver (4) is connected with face recognition module (5) by wire, and face recognition module (5) is connected with engine starting line connection control module (6) by signal wire (SW).

2. the automotive theft proof system with two-stage biological recognition function according to claim 1, is characterized in that: the upper end of described fingerprint recognition chip (2) is connected with tactile sensor (1), and lower end is connected with unlocking signal producer (3).