RU-2861646-C1 - METHOD FOR REMOTE CONTROL OF MONITORING AIS SIGNALLING OF E1 STREAMS OF HARRIS QUADRALINK RADIO RELAY EQUIPMENT

Abstract

FIELD: radio communication. SUBSTANCE: invention relates to the field of automated process control systems used for monitoring and managing radio communication transmission systems, in particular during repair and tuning of Harris Quadralink radio relay equipment. A method for remote control of monitoring the AIS signalling of E1 streams of the Harris Quadralink radio relay system is proposed, in which a microcontroller forms digital packets on the transmitting side, and on the receiving side the microcontroller receives packets and makes a decision about switching a specific E1 stream. EFFECT: enabling generation and identification of the AIS signal of a digital E1 stream in the signalling monitoring system of a digital radio relay line. 1 cl, 3 dwg

Inventors

• Mikheev Valentin Anatolevich
• Rybalkin Valerij Vladimirovich

Dates

Publication Date

20260506

Application Date

20250422

Claims (1)

1. A method for remotely controlling the monitoring of AIS signaling of E1 streams of the Harris Quadralink radio relay system, characterized in that in the transmitting unit, through the Mini-USB connector (1), the Arduino Nano board (2) with a microcontroller (3) with built-in software for generating a digital packet is powered, after power is supplied to the transmitting unit, the microcontroller (3) waits for the operator to enter data from the keyboard containing buttons (5), (6), (7), (8) with series-connected resistors (9), (10), (11), (12) to generate a clear logical level, when one of the buttons (5), (6), (7), (8) is pressed, the relay module (13) consisting of an optocoupler (14) for galvanic isolation, a current-limiting resistor (15) in the input circuit of the module, a transistor (16) for turning on the relay, a resistor (17) for limiting the current in the control circuit, a diode (18) for quenching the counter EMF, a jumper (19) for selecting the power supply type, LED (20) for light indication, forms a digital packet from the control signal from the microcontroller (3) by closing the relay contacts to transmit the information signal, and in the receiving unit through the USB connector (21) and DC-DC connector (22) provide power to the Arduino UNO board (23) with a microcontroller (24), which ensures the operability of four relay modules (13) for controlling the monitoring of four digital streams E1, consisting of an optocoupler (14) for galvanic isolation, a current-limiting resistor (15) in the input circuit of the module, a transistor (16) for turning on the relay, a resistor (17) for limiting the current in the control circuit, a diode (18) for quenching the counter EMF, a jumper (19) for selecting the power supply type, LED (20) for light indication, and after receiving the start data bit at the digital port of the board, the microcontroller (24) receives information bits and makes a decision to control one of the streams E1.

Description

The invention relates to the field of automated process control systems used for monitoring and controlling radio communication transceiver systems, in particular during the repair and configuration of Harris Quadralink radio relay equipment. The current Farscan software for monitoring Harris Quadralink radio relay equipment does not separate the AIS signal for each E1 stream; it only provides a common signal for four E1 streams transmitted simultaneously. It is important to separate each E1 stream, as they carry information from different types of equipment. The only way to identify a stream is by changing the DIP switch on the board located in the equipment rack at the communications facility. A method is proposed for generating a digital data packet using a microcontroller for remote control of radio relay line monitoring. The objective of the invention is to provide remote switching of monitoring of E1 streams of Quadralink radio relay equipment for detailed differentiation of the AIS signal in the general stream. The technical result of the invention is the possibility of generating and identifying an AIS signal of an E1 digital stream in the Farscan digital radio relay line signaling monitoring system. The stated problem is solved, and the technical result is achieved by the ability of the microcontroller to generate digital packets on the transmitting side and distinguish them on the receiving side in order to make a decision about switching a specific E1 stream. The method for remotely controlling the monitoring of AIS signaling of E1 streams of the Harris Quadralink radio relay system is characterized by the fact that it contains a transmitting unit consisting of a Mini-USB connector (1), an Arduino Nano board (2) with a microcontroller (3) with built-in software for generating a digital packet, a keyboard module (4) with buttons (5), (6), (7), (8) with series-connected resistors (9), (10), (11), (12), for generating a clear logical level, a relay module (13), consisting of an optocoupler (14) for galvanic isolation, a current-limiting resistor (15) in the input circuit of the module, a transistor (16) for turning on the relay, a resistor (17) for limiting the current in the control circuit, a diode (18) for quenching the counter EMF, a jumper (19) for selecting the type of power supply, an LED (20) for light indication, and a receiving unit consisting of a USB connector (21) and a DC-DC connector (22), an Arduino UNO board (23) with a microcontroller (24) that ensures the operability of four relay modules (13) for controlling the monitoring of four digital streams E1, consisting of an optocoupler (14) for galvanic isolation, a current-limiting resistor (15) in the input circuit of the module, a transistor (16) for turning on the relay, a resistor (17) for limiting the current in the control circuit, a diode (18) for quenching the counter-EMF, a jumper (19) for selecting the power supply type, a LED (20) for light indication. The mini-USB connector (1) of the transmitting unit supplies power to the Arduino Nano board (2), which houses the microcontroller (3) with embedded software. The digital outputs of the Arduino Nano board (2) generate 5V power and transmit information between the microcontroller (3) and the keyboard module (4). After power is supplied to the transmitting unit, the microcontroller (3) waits for the operator to enter data from the keyboard. When one of the buttons (5), (6), (7), (8) is pressed, the microcontroller generates a digital packet with a pulse duration of one second, containing a start data bit and three information bits. The sequence of information bits contains data on the number of one of the four channels. Pressing several buttons (5), (6), (7), (8) simultaneously will not be registered in order to exclude the transmission of several digital packets and collisions. To form a clear logical level, we connect the buttons through resistors (9), (10), (11), (12). The relay module (13) forms a digital packet from the control signal from the microcontroller (3) by closing the relay contacts. Galvanic isolation is provided between the MD-90 multiplexer equipment and the transmitting unit for transmitting the information signal through two independent electrical circuits. Since digital signals are transmitted, optocouplers (14) are used for isolation, converting the electrical signal into an optical signal, excluding direct electrical contact between the galvanic circuits. The receiving unit has galvanic isolation similar to the transmitting unit. Resistor (15) is used to limit the current in the input power supply circuit of the relay module (13). A transistor (16) operating in key mode is used to activate the electromechanical relay. A resistor (17) in the transistor's base circuit limits the current in the control circuit. A diode (18) dampens surges of the counter-electromotive force generated in the relay coil when the bipolar transistor is turned off. Jumper (19) allo