ES2728289A1 - System for access control to physical spaces or telematic networks through acoustic signals (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

The invention included under the title "System for the control of access to physical spaces or telematic networks by means of acoustic signals" consists in exchanging the relevant information for access (access code, username and password, digital signature and digital certificates, ...) by means of acoustic signals for them both the mobile device that is used as the transmitter of the information and the control system need to have the necessary acoustic interfaces (loudspeaker and microphone). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

System for access control to physical spaces or telematic networks through acoustic signals.

System to request access to physical spaces or telematic networks by issuing an acoustic signal, audible or not, with coded and modulated information. Such information, received through a device equipped with a microphone, will provide direct or indirect access to a physical space or a telematic network. Directly, when said device opens a lock upon receiving a certain opening code, for example; indirectly, when a password of a Wi-Fi network is sent to a user's email account, the user having provided said email account in the initial acoustic communication.

Technical sector

The present invention belongs to the sector of access control technique, both access to physical spaces and telematic networks.

The main object of the present invention is a system based on the communication from a mobile device with an electronic device, through acoustic signals that are emitted from the speakers of the devices and received by the microphones, and that upon receiving certain codes of the mobile device enables access to a space or provides access keys to a telematic network. Access to a physical space or the keys for access to a telematic network can also be facilitated by prior user authentication through acoustic communication between the user's mobile device and the electronic access control device. This authentication can be by means of a PIN code (personal identification number), by means of a username and password, by digital signature using digital certificates or by any other authentication method.

Background of the invention

There are access control systems based on NFC and bluetooth but we do not know of any that is based on an acoustic communication such as the one described in this patent.

Explanation of the invention.

It is an access control system for both physical spaces and telematic networks. The system consists of:

to. A software program that runs on a mobile device of the person claiming access. This program encodes and modulates the relevant information so that access is allowed. This information is emitted acoustically by the loudspeaker of the mobile device to be received by a microphone in the device described in b.

b. An electronic device that has a microphone and that receives the information encoded and modulated by the software program described in a.

C. A program that demodulates and decodes the relevant information to grant access or not and that runs on the device described in b.

d. A decision-making routine on whether access is facilitated or not, which can be local to the device described in bo on another machine that is connected to said device telematically.

The relevant information mentioned in a. to obtain access, it may be of the following nature: An access code, a user and an access code, a PIN code number (personal identification number), an electronic signature using digital certificates.

Brief description of the drawings

In order to complete the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where illustrative and non-limiting nature has been represented. next:

Figure 1.- Shows a general scheme of a door opening system through the transmission of acoustic signals.

Figure 2.- Shows a general scheme of a system for obtaining, by means of acoustic communication, the information necessary to connect a mobile device to a telematic network. The mobile device will be previously authenticated by a user and an access code, a code, a PIN code number (personal identification number), a digital signature using digital certificates, or any other authentication system.

The following is a brief description of the elements that appear in the figures:

1 = Mobile device in which a program is run that encodes and modulates the information to be transmitted to facilitate access control.

2 = Sound wave that carries the information to be transmitted to facilitate access.

3 = Microphone that receives the acoustic wave with the necessary information to facilitate access.

4 = Electronic device that is connected to the microphone and that can demodulate and decode the information received in the acoustic signal locally or send it to another device to perform this task.

5 = Telematic communication of the electronic device 4 in the event that demodulation, decoding and / or the decision to provide access is not carried out locally on the electronic device 4.

6 = Telematic network where a machine in charge of demodulating, decoding and / or making the decision to facilitate, or not, access would be found in case any of these tasks do not perform the electronic device 4.

7 = Opening mechanism that facilitates access to the physical space.

8 = Sending to a mobile device the necessary information, for access to a telematic network, by means of acoustic waves.

9 = Speaker for sending information from the electronic device 4, by means of acoustic waves to the mobile device 1.

Preferred Embodiment of the Invention

In the first embodiment of the invention, the system shown in Figure 1 will be implemented. It is an opener by means of acoustic waves. The modulation of said wave Acoustic will be BPSK centered at 19Khz and a bandwidth of 2Khz. The coding will be: inner Turbo-coding and outer Reed-Solomon. The authentication mechanism will be through a code.

Through sound waves, authentication will be carried out from mobile device 1 by sending a code. The electronic device 4 receives the acoustic wave by the microphone, the wave in the electronic device 4 is demodulated and decoded by SW, and it is verified locally that the code is valid. Once the check is done, the door is opened, facilitating access.

Claims (2)

1. Acoustic system for access control to physical spaces. Figure 1 is a schematic of said system. The validation for access is obtained by sending the information to obtain the access by modulating an acoustic wave, which is sent from the mobile device 1 to the electronic device 4 of a code. Such information for obtaining access could be a username and password, a digital signature using digital certificates, or any other authentication method. Verification of the validity of the information to provide access, decoding of the information and demodulation of the wave may be performed locally on the electronic device 4 or on another device connected to 4 electronically. 2. Acoustic system for the control of access to telematic networks. Figure 2 is a schematic of said system. The validation for access is obtained by sending the information to obtain the access by modulating an acoustic wave, which is sent from the mobile device 1 to the electronic device 4 of a code. Such information for obtaining access could be a username and password, a digital signature using digital certificates, or any other authentication method. Verification of the validity of the information to provide access, decoding of the information and demodulation of the wave may be performed locally on the electronic device 4 or on another device connected to 4 electronically. If the access request is satisfactorily resolved, the device 4 will send the data to connect to the network (for example, SSID of a WIFI network and access key) acoustically, via microphone 9 to the mobile device 1.