JPH04293322A - Power supply control for earth station equipment - Google Patents

Abstract

PURPOSE:To reduce power consumption by stopping power supply other than a logic section in a communication signal receiver and to improve the reliability by periodically supplying power for a short time so as to check for a fault or the like. CONSTITUTION:The system is provided with a common signal transmitterreceiver 5 comprising common signal equipment means 2,3,4 receiving a common signal from a control station, common signal processing means 6,7 implementing demodulation and processing of a received common signal, and common signal transmission means 8,9,10 sending the processed common signal to a control station, and with a communication signal receiver 11 comprising a power supply means 58 and a logic section 57 receiving a signal from the common signal processing means 7 to control the power supply means 58, and when the communication signal receiver 11 receives no signal, the common signal processing means 7 and the logic section 57 are used for the communication to apply the control to tentatively interrupt the power supply for the communication receiver 11.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a power supply control system for earth station equipment, and in particular, the present invention relates to a power supply control system for earth station equipment, and in particular, to
The present invention relates to a power supply control method for reducing power consumption of a communication signal receiving device of an earth station when using a request allocation satellite communication method in which communication is performed by sharing two or more transmission paths.

0002

[Prior Art] Generally, in a request allocation satellite communication system in which three or more satellite communication earth stations communicate by sharing two or more transmission paths, a control station manages the common transmission path and transmits according to requests. In order to allocate channels, a common signal transmission channel is required to transmit channel assignment information between the control station and each earth station. In recent years, the broadcasting feature of satellite communications has been utilized to transmit from one station and receive from multiple stations.
Communication is increasingly performed in so-called broadcast mode. When communicating in broadcast mode using the request allocation satellite communication method, each earth station normally receives a common signal sent from a control station, and when there is communication, it uses the common signal to control The station allocates a communication signal frequency,
A communication signal is being received by the communication signal receiving device. A satellite communication earth station that is not a control station in such a request allocation satellite communication system has a configuration as shown in FIG.

That is, an antenna 1 for both transmitting and receiving, a low noise amplifier (LNA) 2 as a receiving section, and a receiving frequency converter (
D/C) 3, a distributor 4, a communication signal receiving device 11, a communication signal terminal device 12, and a common signal transmitting/receiving device 5 includes a common signal demodulating section 6 and a common signal processing section 7. In addition, a common signal modulator 8 and a transmission frequency converter (U/
C) 9, comprising a high power amplifier 10. The communication signal receiving device 11 includes a MIX 51 that inputs a received signal specified by a control station, which will be described later, and converts the received signal by changing the synthesizer 52 to a specified frequency, a MIX 53 that receives and converts the signal using a phase-synchronized VCO 55, a demodulator 54, and data. processing section 56,
It is comprised of a logic section 57 that performs logical processing of control signals from a control station, and a power supply section 58. Such a controlled station is
A common signal sent from a control station via a satellite is transmitted to an antenna 1, a low noise amplifier (LNA) 2, and a receiving frequency converter (
The common signal demodulator 6 of the common signal transmitting/receiving device 5 receives the signal through the D/C) 3 and the distributor 4 . The common signal demodulator 6 passes the signal sent from the distributor 4 to the common signal processor 7. When a communication frequency is specified by a common signal from the control station, the common signal processing section 7 passes the reception frequency control signal 101 to the logic section 57 of the communication signal receiving device 11 so as to control the frequency so that the communication frequency becomes the specified communication frequency. A frequency synthesizer 52 is controlled by a signal 103. Information notifying that this control has been performed is transmitted from the common signal processing unit 7 to the common signal modulation unit 8, and is transmitted to the control station via the transmission frequency converter (U/C) 9, high power amplifier (HPA) 10, and antenna 1. After that, the communication signal receiving device 11 and the communication signal terminal device 12 perform satellite communication. In this case, power was always supplied to the communication signal receiving device 11 from the power supply unit 58.

0004

[Problems to be Solved by the Invention] In the above-mentioned conventional power control system for earth station equipment, the common signal sent from the control station to each earth station is generally a continuous signal, and the control signal before communication is For this reason, each earth station must always receive the common signal, but it is only necessary to receive the communication signal when communicating, and the time for communication is at most a few hours a day. However, power is always supplied to the communication signal receiving device even when no communication is being performed, and there is a drawback in that it is not possible to reduce power consumption.

[0005] An object of the present invention is to provide a power supply control system that can reduce the power consumption of a controlled earth station device with a simple configuration.

[0006]

[Means for Solving the Problems] The power control method for the earth station device of the present invention uses a request allocation satellite communication method in which three or more satellite communication earth stations share two or more transmission paths for communication. In a power supply control system for an earth station device, a common signal receiving means receives a common signal from a control station, a common signal processing means demodulates and processes the received common signal, and a common signal processing means processes the common signal from the control station. a common signal transmitting/receiving device having a common signal transmitting means for transmitting a signal to a control station; and a communication signal receiving means for receiving a communication frequency instruction from the control station and receiving communication between other communication earth stations. , a communication signal receiver comprising: a power supply means whose output is controlled by control from the logic section; and means for the logic section to receive a signal from the common signal processing means of the common signal transmitting/receiving device and to send a control signal to the power supply means. If the communication signal receiving device is not receiving a signal, the common signal processing means of the common signal transmitting/receiving device and the logic section of the communication signal receiving device communicate with each other, and the power supply to the communication signal receiving device is temporarily interrupted. control to ensure that the

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention. In the embodiment of FIG. 1, the same reference numerals as in the conventional example of FIG. 2 have the same structure and function. That is, in this embodiment, the communication status communication signal 102 is sent from the common signal processing section 7 to the logic section 57, and the power control signal is sent from the logic section 57 to the power supply section 58.
is being sent to.

In this embodiment, as shown in FIG.
A communication status notification signal 102 is sent to the logic unit 57 of the communication signal receiving device 11 to notify whether or not the communication signal receiving device 11 is in the communication status. Based on this information, when the logic unit 57 of the communication signal receiving device 11 is not in the communication state, the power supply unit 58 is controlled by the power supply control signal 104, and the power supply to the communication signal receiving device 11 is controlled. Power is supplied to all parts of the communication signal receiving device 11. This power supply control is performed by the logic section 5.
7 and frequency synthesizer 52, if you stop the power supply once and do it except for the parts where it takes time for the electrical characteristics to meet the standard values after the power is supplied, there will be no problems with the characteristics. Power consumption can be reduced. In addition, regarding device reliability problems caused by controlling power when not in a communication state, the communication signal receiving device 11
If power is supplied to all parts of the system for a short period of time to check for failures, reliability will not be compromised. The time required to supply power to all parts is from a few seconds to a dozen seconds at most, and there is no problem in reducing power consumption.

[0009]

Effects of the Invention As explained above, according to the power supply control method of the earth station device of the present invention, request allocation is achieved in which three or more satellite communication earth stations share two or more transmission paths for communication. When using the satellite communication system, when the communication signal receiving device is not receiving a communication signal, a part of the communication signal receiving device that receives the signal from the common signal transmitting and receiving device;
In other words, the supply of power to parts other than the logic part is stopped, which reduces power consumption, and the communication signal receiving device is periodically supplied with power for a short period of time to check for failures. This has the effect of not impairing the reliability of the device.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a power supply control system for an earth station device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional power supply control method for an earth station device.

[Explanation of symbols]

1 Antenna 2 LNA 3 D/C 4 Distributor 5 Common signal transmitting and receiving device 6 Common signal demodulation section 7 Common signal processing section 8 Common signal modulation section 9 U/C 10 HPA 11 Communication signal receiving device 12 Terminal device for communication signals 51, 53 MIX 52 Synthesizer 54 Demodulation section 55 VCO 56 Data processing section 57 Logic part 58 Power supply section 101 Reception frequency control signal 102 Communication status communication signal 103 Frequency control signal 104 Power control signal

Claims (2)

[Claims] Claim 1: In a power control system for an earth station device that uses a request allocation satellite communication system in which three or more satellite communication earth stations communicate by sharing two or more transmission paths, a common signal from a control station is provided. common signal receiving means for receiving the common signal, common signal processing means for demodulating and processing the received common signal, and common signal transmitting means for transmitting the common signal processed by the common signal processing means to the control station. a transmitting/receiving device, a communication signal receiving means for receiving communication frequency instructions from the control station and receiving communication between other communication earth stations, and a power supply means whose output is controlled by control from a logic section; a communication signal receiving device having means for a logic unit to receive a signal from a common signal processing means of the common signal transmitting/receiving device and transmitting a control signal to a power supply means, and when the communication signal receiving device is not receiving the signal; The power source of the earth station device is characterized in that the common signal processing means of the common signal transmitting/receiving device and the logic section of the communication signal receiving device communicate with each other, and the power supply of the communication signal receiving device is controlled to be temporarily interrupted. control method. 2. The earth station according to claim 1, wherein the common signal processing means performs short-time power supply control to check for a failure after a predetermined period of time has elapsed since the communication signal receiving device was powered off. Device power control method.