RU2137300C1 - Radio station - Google Patents

Abstract

FIELD: radio communication for shipboard and ground radio centers. SUBSTANCE: radio station designed for operation in very long-, medium-, and short-frequency bands has receiving unit incorporating first and second receivers and signal processing and control unit, as well as transmitting unit with transmitter and set of final devices; data outputs of receivers are connected to respective first and second inputs of signal processing and control unit whose third data input and data output are connected, respectively, to data output and input of set of final devices; in addition, first and second receivers as well as set of final devices are connected through separate control lines to signal processing and control unit. Newly introduced in radio station are series-connected radio traffic monitoring unit, timer, and serviceability check unit, as well as OR gate and receiver/exciter whose data input, first, second, and third outputs are connected, respectively, to data output and input of final devices, data input of transmitter, and in parallel with data check inputs of first and second receivers; receiver/exciter is also connected through separate control lines to set of final devices and to transmitter; additional output of set of final devices informing about absence of communication request signal is connected in parallel with first inputs of radio traffic monitoring unit and OR gate whose second inputs are connected in parallel with additional output warning about radio traffic failure and that of signal processing and control unit which is also connected via control line to data check-up unit; output of OR gate is connected to CLEAR input of timer; set of final devices has external output for connecting additional set of final devices. EFFECT: improved reliability and traffic-carrying capacity of radio channel, facilitated operation and maintenance, simplified design of radio station. 2 dwg

Description

 The present invention relates to the field of radio communications and can be used as the main radio installation of UHF / HF / HF frequency ranges of the maritime mobile service for radiotelephone and telegraph automated commercial and official communications as part of coastal and mobile radio centers located on merchant and fishing fleet ships in marine areas A2, A3 and A4.

 Known radio station containing transmitters, a multi-channel receiver, and other elements and blocks (a. USSR USSR N 1401623, MKI H 04 V 7/00), and a device for transmitting information in a mutual two-way radio channel, containing a transmitter, a receiver, a decision unit, control unit and other blocks and elements (as with. the USSR N 1462498, MKI H 04 V 7/00).

 The closest in technical essence is a ship telecommunication system containing a group of high-frequency radios, a group of high-frequency radio transmitters, an automatic error request unit, to which one of the receivers and one of the transmitters are connected, a digital selective call unit, to which the other receiver and the other transmitter are connected, and a digital computing device that, in scanning mode, changes the frequency of a receiver connected to the call block in a predetermined range, includes a receiver and a transmitter connected to the block m request signal in accordance with the message received and decoded in the paging unit, and generates the ready signal is transmitted by the transmitter connected to the call unit (US patent N 4491966, H 04 B 7/00, H 04 Q 7/00).

 However, the well-known radio station is complex and does not allow automatically monitoring the receiving and transmitting paths during its regular operation.

 The problem to which the invention is directed is to increase the reliability and throughput of the radio channel, improve the performance of operation and maintenance, simplify the radio station.

 The solution is achieved by the fact that in a known radio station containing a receiving node, consisting of first and second receivers and a signal processing and control unit, a transmitting node, consisting of a transmitter and a set of terminal devices, while the information outputs of the receivers are connected to the first and second information inputs respectively, a signal processing and control unit, the third information input and information output of which are connected respectively to the information output and the input of the terminal set of trosts, in addition, the first and second receivers, as well as a set of terminal devices, are connected by separate control lines to the signal processing and control unit, a radio-communication absence control unit, a timer and a control unit, as well as an OR circuit and a pickup exciter, information input, the first are introduced , the second and third outputs of which are connected respectively with the information output and input of the set of terminal devices, the information input of the transmitter and in parallel with the information control the inputs of the first and second receivers, the exciter-exciter is also connected by separate control lines to the set of terminal devices and the transmitter, in addition, the additional output of the set of terminal devices, signaling the absence of a communication request signal, is connected in parallel with the first inputs of the radio absence control unit and the OR circuit, second inputs which are connected in parallel with an additional output signaling the absence of radio exchange, a signal processing and control unit, which is additionally connected control line to the control unit, and the output of OR circuit connected to the input "reset" the timer, wherein the set of terminals has an outer outlet for connection of an additional set of terminals.

 Comparative analysis with the prototype shows that the introduction of significant distinguishing features is new and allows, as will be shown below, to solve the problem.

 In FIG. 1 shows a structural diagram of the proposed radio station.

 The radio station contains a receiving node 1, consisting of the first 2 and second 3 receivers, a signal processing and control unit 4 and serially connected radio absence control unit 5, a timer 6 and a control unit 7, as well as an OR 8 circuit, a transmitting node 9, consisting of in series connected exciters 10 and transmitter 11, as well as a set of terminal devices 12, while the information outputs of receivers 2 and 3 are connected to the first and second information inputs, respectively, of the signal processing and control unit 4, the third and the information input and information output of which are connected respectively to the information output and input of the set of terminal devices 12, in addition, the first and second receivers 2 and 3, as well as the set of terminal devices 12 are connected by separate control lines to the signal processing and control unit 4, and the information input , the first and third outputs of the exciter 10 are connected respectively to the information output and input of the set of terminal devices 12 and in parallel with the information control inputs of the first 2 and Of 3 receivers, the exciter 10 is also connected by separate control lines to the set of terminal devices 12 and the transmitter 11, in addition, the additional output of the set of terminal devices 12, signaling the absence of a communication request signal, is connected in parallel with the first inputs of the radio absence control unit 5 and the OR circuit 8, the second inputs of which are connected in parallel with an additional output signaling the absence of radio exchange, a signal processing and control unit 4, which is additionally connected by a line board with a control unit 7, and the output of OR circuit 8 is connected to the input "reset" the timer 6, wherein the set of terminal devices 12 has an outer outlet for connection of an additional set of terminals.

 Before considering the operation of the radio station as a whole, we will make some explanations regarding the purpose and technical implementation of individual nodes and blocks.

 The transceiver 10 is a transceiver (i.e., a device that operates both on “reception” and “transmission”) without a power amplifier and antenna matching device.

 The control unit for the absence of radio exchange 5 provides the generation of a control signal in the absence of radio exchange and communication requests and can be made in the form of a logical element OR-NOT. The timer 6 is designed to generate a signal "control" after a certain time interval necessary to complete the procedures for the end of the radio exchange, including the release of RAM for performing control operations. As timer 6, a binary counter with a reset can be used.

 The control unit 7 provides interaction with the signal processing and control unit 4 when performing the monitoring function of the radio station and can be made in the form of the device shown in FIG. 2 and consisting of a series-connected clock generator (GTI) 13, a key 14, a first counter 15, a read-only memory (ROM) 16, an error analyzer 17 and a series-connected second counter 18, a readjustment ROM 19, as well as an OR 20. The same figure shows the individual components of block 4: the first 21, second 22 and third 23 switches, registers of the radio receiving device (RPU) 24 and the exciter (PV) 25, interacting with block 7 when performing the automatic control function.

 Consider the work of the radio station.

 In the initial state, the radio station is turned on and is in a state of radio exchange with correspondents, i.e., information through the first switch 21 of the signal processing and control unit 4, a set of terminal devices 12, the receiver-exciter 10, and the transmitter 11 are transmitted to the correspondents. At the same time, receivers 2 and 3, as well as exciter 10, when there is no transmission, the signals are received and processed in block 4. If there is no signal transmission and there is at least one free receiver, block 4 generates a signal “No radio exchange” (log. "0"), which switches the first switch 21 to transmit information signals from the output of ROM messages 16, the second 22 and third 23 switches to transmit signals from the output of ROM adjustments 19 of the control unit 7. At the same time, the signal "No radio" is simultaneously sent as the first inputthe OR circuit 20 of the control unit 7, and to the inputs of the control unit for the absence of radio exchange 5 and the OR circuit 8. If at the same time there is no attempt to initiate communication with this radio station, then from the output of the set of terminal devices 12 to the second inputs of units 5 and 8 the signal " no communication request "(log." 0 "). At the same time, the control unit for the absence of radio exchange 5 starts the timer 6 for the time required to complete the switching and forwarding in block 4 and prepare the radio station as a whole for the operation of automatic control. That is, during the operation of timer 6 through the second 22 and third 23 switches, the frequency code is rewritten from the output of the readjustment ROM 19 to the RPU 24 and PV 25 registers, the "free" receiver is rebuilt, suppose the second 3, and the exciter 10, the exciter 10 is switched to the mode the formation of the control signal and the second receiver 3 in the reception mode of the control signal. After completion of the above operations for the automatic transfer of the radio station to the control state by the signal processing and control unit, a signal “Ready PV, RPU” is generated, which is fed to the second input of the OR circuit 20. At the end of timer 6, a signal is generated at its output, which is also fed to the third the input of the OR circuit 20. The output of the OR circuit 20 opens the key 14 and unlocks the first counter 15 and the error analyzer 17. In this case, the pulses from the output of the GTI 13 through the public key 14 start the first counter 15, which generates addresses for Message ROM 16. Information signals from the output of Message ROM 16 are supplied in parallel both through the first switch 21 and further through the set of terminal devices 12 to the modulating input of the exciter 10 and to the error analyzer 17. At the same time, information demodulated by the receiver 3 is fed to the second input of the error analyzer 17, where it is compared with the transmitted one. After the transmission of the test format is completed, the error analyzer 17 may give a “Normal” or “Faulty” signal. First, consider the situation when the signal “OK” is issued. In this case, the error analyzer 17, in addition to the “OK” signal, also gives a pulse to the input of the second counter 18 and puts it in the next state corresponding to the next frequency. After that, block 4 removes the signal "Ready PV, RPU", the absence of which through the OR circuit 20 locks the key 14, resets and blocks the first counter 15 and the error analyzer 17. The receiver 3 and the receiver-exciter 10 are tuned to the next frequency, the signal "Ready PV, RPU "and further according to the algorithm described above. If the error analyzer 17 gives a "Faulty" signal, then this signal is transmitted to the set of terminal devices 12, which at the same time gives a corresponding message to the display, and also generates sound and light signaling signals indicating to the radio station operator about the malfunction.

 If it is necessary to resume the radio exchange or communication request, a signal (log. "1") is sent to one of the inputs of the OR 8 circuit, the output signal of which resets the timer 6. The output signal of the timer through the OR 20 circuit, along with the removal of the "No radio exchange" signal, formed on the internal circuits of block 4, puts the radio station in a state of radio exchange.

 Thus, the proposed radio station, providing automatic continuous monitoring of its functioning during pauses of the radio exchange, is not periodically removed from duty at the time of checks of its serviceability and is constantly maintained in working condition. These properties of the radio station can improve the reliability and throughput of the radio channel, improve its characteristics for maintenance and operation. In addition, the proposed radio station through the use of exciter excitation, which allows without additional devices to organize an additional reception channel, is simpler.

Claims (1)

 A radio station comprising a receiving node consisting of a first and second receivers and a signal processing and control unit, a transmitting node consisting of a transmitter and a set of terminal devices, wherein the information outputs of the receivers are connected to the first and second information inputs of the signal processing and control unit, respectively, the third the information input and information output of which are connected respectively with the information output and input of the set of terminal devices, in addition, the first and second receivers, Also, a set of terminal devices are connected by corresponding control lines to a signal processing and control unit, characterized in that serially connected no radio exchange control unit, a timer and a control unit, as well as an OR element and a receiver exciter, information inputs, the first, second and third outputs of which are connected respectively, with the information output and input of the set of terminal devices, the information input of the transmitter and with the information control inputs of the first and second minikov, the exciter-exciter is also connected by appropriate control lines to a set of terminal devices and a transmitter, in addition, the additional output of a set of terminal devices, signaling the absence of a communication request signal, is connected to the first inputs of the absence of radio exchange control unit and the OR element, the second inputs of which are connected to an additional output signaling the absence of radio exchange, a signal processing and control unit, which is additionally connected by a control line to the control unit, and the output The OR element is connected to the timer reset input, while the external output of the set of terminal devices is the output for connecting an additional set of terminal devices.

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