RU10474U1 - ADDRESS SYSTEM FOR COLLECTING AND DELIVERY OF CODE MESSAGES TO THE CONTROL CENTER - Google Patents

Abstract

An address system for collecting and delivering code messages to a control center, containing code message radio transmitters discretely distributed over the controlled territory, code message receivers, a control center with connecting lines and information consumer terminals, characterized in that modems for transmitting and converting code messages to nadtonal region of the spectrum of sound frequencies, and the active lines of the public telephone network, to which through corresponding modems are connected to the outputs of the radios.

Description

The present invention relates to the field of automated multifunctional systems that allow delivering information about the state of spatially distributed observable objects, including moving ones, to the control center (for example, automated determination of the location of a vehicle equipped with a radio beacon from a control center).

Known systems for determining the location of moving objects equipped with beacons based on radar and direction finding methods (see. Patent No. 2032227. Rossnya. Dutov A.V., Michurinsky V.I., Utkin G.N.).

These systems are associated with the need to equip a moving object (car) with a sufficiently powerful (with a transmitter capacity of more than 1 W) beacon and have insufficient bandwidth for large cities. In addition, the operation raises the problem of electromagnetic compatibility with other existing radio systems.

The closest in technical essence and the achieved result to the proposed system is a system for determining the location of vehicles equipped with ultra-low power beacons (up to 5 mW), the communication range of which with any receiver-relay of the system is limited to less than the distance between any two receivers-repeaters (method proximity, see Description of the system for protecting cars from theft Vol Vask, abstract magazine Automobile Transport, 1997, No. 2, 2B65).

The ultra-low power of the beacon removes the problem of the influence of electromagnetic compatibility of the address system in relation to existing radio systems. However, the main disadvantage of the known addressing system is the need to create a developed infrastructure of dedicated trunk lines that provide communication between the receiver-relay stations and the control center, the difficulty of installing the transmitting and receiving antennas under the car canvas up to / 0И7

horns, which significantly increases the amount of capital and operating costs for the creation of this system. In addition, the known systems provide a limited composition of the transmitted messages, since they are designed only for the control and identification of vehicles.

The aim of the present invention is to reduce capital costs and operating costs. The essence of the proposed technical solution lies in the fact that the address system for collecting and delivering code messages uses the existing switching lines of the public telephone network instead of an independent infrastructure of dedicated trunk lines, modems that transmit code messages and convert them to the natal region of the frequency spectrum, and code receivers messages are connected to the existing lines of the public telephone network.

The block diagram of the proposed system for collecting and delivering code messages to the control center is shown in FIG. 1, where:

1- code message radio transmitter;

2- receiver of code messages;

3- modem for delivering code messages over a switched trunk;

4-switched connecting line;

6 - terminal consumer information.

The principle of action of the proposed address system is as follows: the signals of the code message radio transmitter (beacon) 1 when it is in the radio visibility zone of the nearest receiver 2 (proximity method) are received last, converted into a typical code signal by the code message delivery modem 3 and via a switched trunk 4 to supragonal. areas of the spectrum of sound frequencies (in the frequency separation mode with speech signals) are transmitted to the control center 5, information from which is transmitted to the terminals of information consumers 6.

The code message radio transmitter can be used to determine the location and identification of vehicles, as well as transmit messages about the status of burglar alarms, fire alarms, environmental monitoring, alarms and other messages.

The address system for the collection and delivery of code messages to the control center provides an expanded structure of transmitted messages, including address information about the state parameters of the observed objects. Code messages can be sent to any subscriber number of the public telephone network (local, long-distance, international).

Claims (1)

An address-based system for collecting and delivering code messages to a control center, containing code message radio transmitters discretely distributed over the controlled territory, code message receivers, a control center with connecting lines and information consumer terminals, characterized in that modems are additionally introduced for transmitting and converting code messages to nadtonal region of the spectrum of sound frequencies, and the active lines of the public telephone network, to which through corresponding modems are connected to the outputs of the radios.