ES2264860B1 - ACCESS CONTROL SYSTEM FOR CLOSED ENCLOSURES THROUGH TELEPHONE SYSTEMS. - Google Patents

Abstract

Access control system to enclosures closed by telephony, consisting of an emitting block comprising a mobile or landline telephone terminal (4); and a receiver block comprising a GSM MODEM (1), which receives the call signal from the terminal (4), the information being transmitted through an RS232 type cable (2) to a PLC or microcontroller (3); in that by sending a call to a specific number, located on the GSM MODEM (1), it is capable of transmitting, through the RS232 cable (2) to the PLC or microprocessor (3), the information received, treating to the PLC or microprocessor (3) said information to act on the mechanisms of the door that are associated with its outputs.

Description

Control system for access to enclosures via telephony

Object of the invention

The invention relates, as expressed by the set forth herein, to a system of access control to enclosures by telephone.

More specifically, the object of the invention is to take advantage of the caller ID (DTMF) offered by telephone operators, using a communications terminal, that is, a landline or mobile phone, as a signal emitting device, capable of exciting a receiver that recognize it and use it for access control in enclosures closed.

Technical sector

The invention falls within the technical sector of telecommunications and in the technical sector of the electronics.

State of the art

Currently, within the scope of access to closed enclosures, there are systems for sending coded signals by an issuer, at a certain distance typified by law, that received by the receiver, decodes such a signal, and is used to the opening or closing of motorized doors that allow or deny Access to the enclosures.

In the control of access to closed enclosures using radio frequency technology it has been proven, as They prove the latest legal reforms, which have not been optimal for Solve the problem of interference that inhibits the system. In addition, these current systems are more expensive in acquisition and maintenance.

Explanation of the invention.

Thus, the present invention relates to a new composite enclosure access control system, that as mentioned, is to take advantage of the call identification (DTMF) offered by the operators of telephony, using a communications terminal, that is, a landline or mobile phone, as a signal emitting device, has as  main advantage the fact that the application of the telephony as an opening mechanism, being compatible with existing mechanisms of opening by radio.

Specifically, the system is composed by various independent devices, which properly linked through the corresponding connections and installation adequate, controlled by a micro software, carry out their functioning.

These devices are divided into two blocks One sender and another receiver.

The emitting block consists only of a communications or telephone terminal, which can be of type mobile or fixed standard, while the receiver block is constituted by a GSM MODEM, connected to a PLC or microcontroller through a RS232 type cable.

Thus, the system is controlled through a PLC or microprocessor that, through the appropriate software that internally, controls and supervises communication with the MODEM managing the signal that activates or deactivates the door motorized

The operation begins with the call of telephone terminal to the MODEM receiver, this communicates it to the PLC identifying the caller, who will verify in his database if said caller is discharged.

If so, the PLC or microcontroller will activate the mechanism that opens the motorized door.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, is attached herein descriptive, as an integral part of it, of a game of planes, in which with an illustrative and non-limiting nature, represented the following:

Figure number 1.- Shows schematically, by means of a block diagram, the access control system to enclosures closed by telephone according to the invention, appreciating the elements that you understand as well as your disposition and relationship between them.

Preferred Embodiment of the Invention

In view of the aforementioned figure 1 and unique and according to the numbering adopted, it can be observed in it preferred embodiment of the access control system to enclosures closed by telephony that includes the parts that They are indicated and described below.

Thus, as seen in said figure 1, the The system in question consists essentially of two blocks, one sender and another receiver, the emitter block comprising a mobile or land phone terminal (4), which will be the instrument used by the user who wishes to access the site, and the receiver block comprising a GSM MODEM (1), which receives the terminal call signal (4), the information being transmitted through an RS232 type cable (2) to a PLC or microcontroller (3).

System operation occurs by sending a call from the telephone terminal (4) to a specific phone number, given previously by the telephone company, located in the GSM MODEM equipment (1), said MODEM (1) transmits, via the RS232 cable (2) to the PLC (3), the information received by treating the PLC or microprocessor (3) said information, based on your program, to act on mechanisms of the door that are associated with their exits.

It should be noted that the PLC or microprocessor (3) It is able to identify the incoming signal sent by the terminal (4) in the first tone, without the need for the call establishment, automatically disconnecting said connection to terminal (4), so that it does not generate an expense of call.

Describe sufficiently the nature of the invention, as well as how to put it into practice, is not considers it necessary to broaden his explanation so that any subject matter expert understands its scope and advantages that derive from it, stating that, within its essentiality, may be implemented in other forms of embodiment that differ in detail from that indicated by way of example, and which will also achieve the protection that collects as long as it does not alter, change or modify its principle fundamental.

Claims (2)

1. Control system for access to enclosures closed by telephony, characterized by taking advantage of the call identification (DTMF) offered by telephony operators, using a communications terminal, or landline or mobile phone, as a signal emitting device , capable of exciting a receiver that recognizes it and using it for access control in closed enclosures, being constituted by two blocks, one emitter and another receiver; in which the sending block comprises a mobile or land telephone terminal (4), which will be the instrument used by the user who wishes to access the site; and in that the receiver block comprises a GSM MODEM (1), which receives the call signal from the terminal (4), the information being transmitted through an RS232 type cable (2) to a PLC or microcontroller (3). 2. System for controlling access to enclosures closed by telephone, according to claim 1, characterized in that by sending a call from the telephone terminal (4) to a specific telephone number, previously given by the company telephone, located in the GSM MODEM (1), said MODEM (1) is capable of transmitting, through the cable (RS232 (2) to the PLC or microprocessor (3), the information received, treating the PLC or microprocessor ( 3) said information, based on the appropriate program or software that it incorporates, to act on the mechanisms of the door that are associated with its outputs.