Method and system for secure access to determined space by means of portable object
A technology for secure access and objects, applied in transmission systems, security devices, signal transmission systems, etc., to solve problems such as intrusion, complex technology, and high power consumption
Active Publication Date: 2018-04-17
THE SWATCH GRP RES & DEVELONMENT LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
This requires complex technology and therefore high power consumption
Therefore, this constitutes a disadvantage of this access system
Furthermore, in such systems the distance measurement phase is usually different from the authentication phase, and this allows potential attacks where only the distance measurement phase can be hacked
Method used
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Embodiment Construction
[0030]In the following description, all the components of the security access system for realizing the security access method well known to those skilled in the art in the technical field are described only in a simplified manner.
[0031] figure 1 An embodiment of a system 1 for securely accessing a determined space by means of a wearable object for implementing a secure access method is shown. In this embodiment of the secure access system 1, the determined space is a vehicle equipped with an access or unlocking device 2 of the vehicle, and the wearable object is preferably an electronic smart key 3 worn by the user of the vehicle.
[0032] Of course, another defined space is possible, such as a bus, a room in a secured building, a secured or any other space where access is only authorized to authorized persons with their personalized wearable objects. Furthermore, the wearable object 3 may likewise be a card, a badge, a watch, a ring, a mobile phone or any other object whi...
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In the case of the process for secure access to a determined space, it is provided that after activation of the wearable object (3), a first coded signal is transmitted from the access or unlocking device (2), this first coded signal is received in the object and a coded response signal is transmitted with synchronisation to the device after a defined time of transmission. A processing of the coded response signal converted in the processing unit (25) of the device is conducted in order to check the defined time delay and the response code of the wearable object and to determine the flight times of the signals between the device and the wearable object. The distance separating the wearable object and the access or unlocking device is thus calculated to authorise access to the determined space if the calculated distance is below a determined threshold after recognition of the wearable object.
Description
technical field [0001] The present invention relates to a method of securely accessing a defined space such as a vehicle by means of a personalized wearable object such as a personalized electronic key. [0002] The invention relates to a security access system for implementing a security access method. Background technique [0003] In the field of secure access to a defined space such as a vehicle, entry systems for vehicles using a smart key for the wireless transmission of commands are known. By means of the access system, a person wearing a personalized wearable object, such as an electronic key, can be authorized to access the space based on a check or authentication of the personalized electronic key. An interrogation signal can first be transmitted from the vehicle's access authorization or unlocking device to the personalized electronic key. As soon as this interrogation signal has been received, the electronic key is activated and a response signal is calculated i...
Claims
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IPC IPC(8): H04L29/06H04W12/08H04W56/00G07C9/00G08C17/02H04W12/084
CPCG07C9/00182G08C17/02H04L63/107H04W12/08H04W56/009G08C2201/62G07C9/00309G07C2009/00373G07C2009/00793G07C2209/06B60R25/24G07C2009/00555G01S13/82G01S13/76G01S13/32G01S13/825G06F21/34G07C2009/00333G07C2009/00396G07C2009/00412
Inventor A·卡萨格兰德C·贝拉斯克斯P·杜克
Owner THE SWATCH GRP RES & DEVELONMENT LTD