RU20164U1 - RADIOTELEMETRIC CONTROL AND MANAGEMENT SYSTEM - Google Patents

Abstract

A radio telemetric monitoring and control system having a transmitting and receiving radio station, a command unit containing a power source, a television signal input device, a radio modem, a command issuing device, a telemetry device, as well as external devices, connected to each other via a standard bus, while the radio modem is connected by cable channels to transceiver radio station and with external devices, characterized in that the command unit is equipped with an accounting controller connected via a standard bus to other coma elements -stand unit and the cable channel with external devices, a radio modem connected to a further cable channel with the radio transceiver.

Description

The inventive utility model relates to the field of radio telemechanics and radio telemetry. It is used in operational monitoring and control systems using radio channels. It is widely used, for example, in the energy sector, in railway transport, and in other sectors of the economy.

Known telemechanical control system of traction substations (see. "Telemechanical control system of traction substations, Vl. Goldfein, journal" Modern automation technology, No. 2, 1998). It contains a transceiver radio station, a command unit and external devices. The command unit includes a power source, a television signal input device, a radio modem, a command issuing device, and a telemetry device that are interconnected via a standard bus. In this case, the radio modem is connected by cable channels to the transmitting and receiving radio station and to external devices.

When using such a system, in the event of an unauthorized transition of one of the receiving and transmitting radio stations to the transmission mode, it does not turn off, on the contrary, the fraud is broadcast and the operation of all other controlled objects is blocked. In this case, there is a malfunction of the entire control system as a whole. Its reliability and performance are reduced. In addition, in such a system, the volume of equipment and cost costs are very high. The task of creating the claimed utility model is to develop a radio telemetric monitoring and control system with high performance, which allows to identify faulty radio stations and external devices without disrupting the operation of the entire system as a whole. In addition, when creating the system, the tasks were set to reduce the amount of equipment, increase the reliability of the system, simplify the operation of the system, reduce cost costs, and the task of integrating all these issues. The technical result is the high performance and reliability of the system, reducing the volume of equipment and reducing cost costs. As well as high efficiency and integration of work. This task and the technical result are achieved by the fact that in a radio telemetry monitoring and control system having a transceiver radio station, a command unit comprising a power source, a television signal input device, a radio modem, a command issuing device, a telemetry device, and also external devices , while the radio modem is connected by cable channels to the transceiver radio station and to external devices, according to the utility model, the command unit is equipped with a controller metering connected via a standard bus to other elements of the command unit and cable

a channel with external devices, and the radio modem is connected by an additional cable channel to a receiving-non-transmitting radio station. The inventive utility model meets the criterion of "novelty, because the combination of its essential features is not known from the existing level of technology. It also meets the criterion of “industrial applicability, as it can be used in the economy or any other area of human activity.

The connection of the radio modem with an additional cable channel to the transceiver radio station allows for unauthorized transition of the radio station only to the transmission mode to identify it and disconnect it from the system. Transition of the radio station only to the transmission mode can occur due to violations either in the radio station itself or in the equipment of external devices. Turning off a faulty radio station prevents a malfunction of the entire system as a whole, ensures its high performance and reliability.

Providing the command unit with an accounting controller, which is connected via standard bus with the other elements of the command unit and the cable channel to external devices, allows you to simplify communication with external devices, reduce the volume and cost of equipment, and, therefore, simplify the operation of the system as a whole and increase its reliability . The essence of the utility model is illustrated by the drawing, which shows a block diagram of a radio telemetric monitoring and control system (see Figure 1).

The radio telemetric monitoring and control system contains a transceiver radio station 1. This is a standard device, for example, a radio station from Motorola (USA).

The main element of the system is the command unit 2, which provides information collection, integration and differentiation of control and management tasks, and also directly controls and controls both external devices and internal elements of the radio telemetry system.

The radio telemetry system monitors and controls external devices 3.

The command unit 2 includes a power source 4, an input device for television signals 5, a radio modem 6, a device for issuing commands 7, an accounting controller 8, a device for measuring telemetry 9. All of them are interconnected via an internal eight-bit wired standard bus 10 of the data address. Power supply 4 standard (220v network).

The input device TV signals 5 is in the form of an electronic board. It provides information on the position of monitoring and control objects (external devices), on emergency situations (security and fire alarm signals), on the status of the equipment of objects (for example, the state of the equipment of outdoor switchgear or indoor switchgear).

The radio modem 6 (KP-TM controller) serves to communicate with the transceiver radio station 1 via the main cable channel 11 and controls the radio station 1 via the additional cable channel 12. It provides the formation of coded information packets and voice messages for transmitting information to radio station 1 and, respectively decoding information and its further processing. In addition, the radio modem 6 communicates via the internal standard bus 10 with all internal

elements of the command unit 2, and on the cable channel 13 with external

devices 3.

The issuing command 7 generates a control action on

inclusion and shutdown of objects of control and management (external devices

3), and at the same time controls the correctness of the teams. It's done

on solid state relays, followed by current amplification.

The accounting controller 8 is based on a microcomputer 89s53. He has a connection with

sixteen external devices 3 using a low-frequency cable

14 with 1.5 kV isolation by pulsed signals. It can serve for accounting

electricity in particular.

The device 9 telemetry provides a current measurement of 0-20 mA and

voltage 0-5 V. It is based on an ADC with sixteen-channel

input switch.

External devices 3 are ABB meters from Metronika, counters

SET-4TM. 01.

The operation of the radio telemetric monitoring and control system is carried out

in the following way.

In a certain area there is a control point, which

provides control over the status of geographically dispersed

controlled points and their management, as well as the collection of accounting information

equipment parameters of controlled items (e.g., quantity

power consumption).

The control center can carry out three operating modes:

-random (sporadic) mode;

This is the mode of operation for unauthorized changes in the state of external

devices 3. For example, changing parameters (output of an analog quantity for

tolerance limits), change in the state of an object (on, off),

emergency situation.

-automatic cyclic survey of controlled points through preset

time intervals;

-Manual mode (at the initiative of the dispatcher);

In this case, a connection is made with a specific selective

controlled item.

In any of the operating modes, the connection between the control point and

controlled points through transceiver

control station radio and transceiver

controlled items.

Based on the information received, the control room manager decides on

ensuring the health and functioning of facilities.

When the dispatcher sends a control signal through his

radio station to a controlled point, then radio station 1 to a controlled

point receives the signal and transmits it to the radio modem 6, where

its decoding. According to the decoding results,

standard bus 10 to one of the internal elements of the command unit 2.

Each internal element of the command unit 2 is associated with the corresponding

elements of external devices For example, a television input device 5

connected with contact groups of the state of oil switches.

connected to electricity meters, and a telemetry device 9 s

current and voltage sensors on feeders.

Thus, the proposed radio telemetry monitoring system and

management allows you to provide high performance, efficiency,

system reliability, as well as reduce the amount of equipment and cost

expenses.

In addition, the proposed system provides high integration.

tasks to be solved.

Claims (1)

A radio telemetric monitoring and control system having a transmitting and receiving radio station, a command unit containing a power source, a television signal input device, a radio modem, a command issuing device, a telemetry device, as well as external devices, connected to each other via a standard bus, while the radio modem is connected by cable channels to transceiver radio station and with external devices, characterized in that the command unit is equipped with an accounting controller connected via a standard bus to other coma elements -stand unit and the cable channel with external devices, a radio modem connected to a further cable channel with the radio transceiver.