Dual-power-supply adaptive backup Ku frequency band receiving system

Abstract

The utility model provides a dual-power-supply adaptive backup Ku frequency band receiving system, and belongs to the technical field of satellite communication. The dual-power-supply adaptive backup Ku frequency band receiving system comprises a backup switch, a Ku frequency band main receiver, a Ku frequency band backup receiver, a main control module and a power supply adaptive module, the Ku frequency band main receiver, the Ku frequency band backup receiver, the control end of the backup switch and the power supply adaptive module are all connected with the main control module. The first end of the backup switch is connected with the Ku frequency band main receiver, and the second end of the backup switch is connected with the Ku frequency band backup receiver; and the third end of the backup switch is connected with the power supply adaptive module. According to the invention, after the main equipment goes wrong, the main equipment can be automatically switched to the backup equipment, so that the stability and reliability of the system are improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of satellite communication, in particular to a dual-power adaptive backup Ku-band receiving system. BACKGROUND

[0002] In the field of satellite communication technology, especially in the application of Ku-band, the stability and reliability of Ku-band receiver are crucial. Communication equipment used in some fields requires extremely high reliability to facilitate the normal operation of communication equipment for a long time. Generally, a Ku-band satellite communication system will only have one Ku-band receiver due to cost considerations, but after the equipment fails, it cannot guarantee normal communication needs. CONTENT OF THE INVENTION

[0003] Due to the above reasons, the present disclosure provides a dual-power adaptive backup Ku-band receiving system, which adopts a 1:1 hot backup mode for the power supply and Ku-band receiver. In the event of a problem with the main equipment, the system can automatically switch to the backup equipment, thereby improving the stability and reliability of the system.

[0004] The present disclosure provides a dual-power adaptive backup Ku-band receiving system, comprising:

[0005] a backup switch, a Ku-band main receiver, a Ku-band backup receiver, a master control module and a power adaptive module;

[0006] The Ku-band main receiver, the Ku-band backup receiver, the control end of the backup switch and the power adaptive module are connected to the master control module;

[0007] The first end of the backup switch is connected to the Ku-band main receiver, the second end of the backup switch is connected to the Ku-band backup receiver, and the third end of the backup switch is connected to the power adaptive module.

[0008] In an exemplary embodiment of the present disclosure, the Ku-band main receiver and the Ku-band backup receiver have the same structure;

[0009] The Ku-band main receiver comprises:

[0010] an antenna unit, a radio frequency unit, an intermediate frequency unit, a local oscillator unit, a control unit, a communication unit and a multiplexing unit;

[0011] The antenna unit is connected to the radio frequency unit, the radio frequency unit is connected to the local oscillator unit and the intermediate frequency unit respectively, and the intermediate frequency unit is connected to the multiplexing unit;

[0012] The control unit is connected to the multiplexing unit through the communication unit.

[0013] The multiplexing unit is connected with the first end of the backup switch.

[0014] In an exemplary embodiment of the present disclosure, the multiplexing unit comprises:

[0015] a demodulator, a decoder and a demultiplexer.

[0016] The demodulator is connected with the decoder, and the decoder is connected with the demultiplexer.

[0017] In an exemplary embodiment of the present disclosure, the dual-power adaptive backup Ku-band receiving system further comprises:

[0018] a voltage detection unit and a DC-DC conversion unit.

[0019] The voltage detection unit is connected with the DC-DC conversion unit, and the DC-DC conversion unit is connected with the control unit.

[0020] In an exemplary embodiment of the present disclosure, the dual-power adaptive backup Ku-band receiving system further comprises:

[0021] a current detection unit and a current conversion unit.

[0022] The current detection unit is connected with the current conversion unit, and the current conversion unit is connected with the DC-DC conversion unit.

[0023] In an exemplary embodiment of the present disclosure, the dual-power adaptive backup Ku-band receiving system further comprises:

[0024] an automatic calibration module.

[0025] The automatic calibration module is connected with the main control module, and is configured to adjust the performance parameters of the Ku-band main receiver and / or the Ku-band backup receiver according to the instruction of the main control module.

[0026] In an exemplary embodiment of the present disclosure, the automatic calibration module comprises:

[0027] a temperature sensor, a humidity sensor and a stepping motor.

[0028] The temperature sensor, the humidity sensor and the stepping motor are all connected with the main control module.

[0029] The stepping motor is configured to adjust the angle of the antenna in the Ku-band main receiver and / or the Ku-band backup receiver according to the instruction of the main control module.

[0030] The Ku frequency band backup receiving system provided by the embodiment of the present disclosure has the following beneficial effects:

[0031] The present disclosure comprises a Ku frequency band main receiver and a Ku frequency band backup receiver. When the Ku frequency band main receiver fails, the main control module sends an instruction to the backup switch, the backup switch switches the working link to the Ku frequency band backup receiver, and the Ku frequency band backup receiver starts working. The power adaptive module in the embodiment is used to connect with two input power supplies, the two input power supplies can supply power to the system at the same time, and have an adaptive design. When the main power supply fails, the backup power supply can be automatically switched to ensure that the system can work normally. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0033] Figure 1 FIG. 1 is a structural schematic diagram of a Ku frequency band backup receiving system with dual power supply adaptation provided by the embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] In order to make the personnel in the technical field better understand the present scheme, the technical solutions in the embodiments of the present scheme will be clearly described below in combination with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all. Based on the embodiments in the present scheme, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present scheme.

[0035] The terms "include", and other any variants thereof, in the specification and claims of the present scheme and the above-mentioned drawings, refer to "include but not limited to", and are intended to cover non-exclusive inclusion, and are not limited to the examples listed in the text. In addition, the terms "first" and "second" and the like are used to distinguish different objects, not to describe a specific order.

[0036] The implementation of the present disclosure will be described in detail below in combination with specific drawings:

[0037] Figure 1 FIG. 1 is a structural schematic diagram of a Ku frequency band backup receiving system with dual power supply adaptation provided by the embodiment of the present disclosure. Referring to FIG. 1, Figure 1 The Ku frequency band backup receiving system with dual power supply adaptation comprises:

[0038] The backup switch, the Ku-band main receiver, the Ku-band backup receiver, the main control module and the power self-adaptive module are connected with the main control module.

[0039] The Ku-band main receiver, the Ku-band backup receiver, the control end of the backup switch and the power self-adaptive module are connected with the main control module.

[0040] The first end of the backup switch is connected with the Ku-band main receiver, the second end of the backup switch is connected with the Ku-band backup receiver, and the third end of the backup switch is connected with the power self-adaptive module.

[0041] The Ku-band main receiver and the Ku-band backup receiver have the same structure.

[0042] The Ku-band main receiver comprises:

[0043] The antenna unit, the radio frequency unit, the intermediate frequency unit, the local oscillator unit, the control unit, the communication unit and the multiplexing unit.

[0044] The antenna unit is connected with the radio frequency unit, the radio frequency unit is connected with the local oscillator unit and the intermediate frequency unit respectively, and the intermediate frequency unit is connected with the multiplexing unit.

[0045] The control unit is connected with the multiplexing unit through the communication unit.

[0046] The multiplexing unit is connected with the first end of the backup switch.

[0047] In the embodiment, the dual-power self-adaptive backup Ku-band receiving system comprises a Ku-band main receiver and a Ku-band backup receiver, and the internal structures of the two receivers are the same. The antenna unit can be an antenna array, the radio frequency unit can be a radio frequency transceiver or a power amplifier, the intermediate frequency unit comprises a filter, a power amplifier and the like, the local oscillator unit can be a local oscillator signal generator such as a crystal oscillator, the control unit can be a single-chip microcomputer with multiple AD, and the multiplexing unit can comprise a demodulator, a decoder and a demultiplexer. The signal output by the radio frequency unit and the signal output by the local oscillator unit can be input to the intermediate frequency unit for next processing after being mixed by a mixer.

[0048] Under normal circumstances, the Ku-band main receiver works and the Ku-band backup receiver is in standby state. The antenna array in the Ku-band main receiver transmits the received Ku-band downlink signal to the radio frequency unit for signal amplification. After the signal is mixed with the signal of a specific frequency output by the local oscillator unit, the signal enters the intermediate frequency unit. The intermediate frequency unit amplifies the signal and inputs the signal to the multiplexing unit after filtering. The multiplexing unit can demodulate the intermediate frequency signal output by the intermediate frequency unit into a baseband signal, decode the baseband signal and restore the original video, audio or data signal. Finally, the multiplexing unit separates the multiple signals into separate video, audio or data streams by using a demultiplexer.

[0049] When the Ku-band main receiver fails, the control module sends an instruction to the backup switch, the backup switch switches the working link to the Ku-band backup receiver, and the Ku-band backup receiver starts working. The power supply adaptive module in this embodiment is used to connect with two input power supplies, which can supply power to the system at the same time, and has an adaptive design. When the main power supply fails, it can automatically switch to backup power supply to ensure that the system can work normally.

[0050] In an embodiment of the present disclosure, the multiplexing unit comprises:

[0051] a demodulator, a decoder and a demultiplexer;

[0052] The demodulator is connected with the decoder, and the decoder is connected with the demultiplexer.

[0053] In this embodiment, the multiplexing unit is a module integrating multiple functions, mainly used for processing received signals and decomposing them into multiple independent signal streams that can be used for subsequent processing. The multiplexing unit includes a demodulator, a decoder and a demultiplexer. The demodulator can restore the received intermediate frequency signal to the original low frequency signal or baseband signal. The demodulation process usually involves steps such as frequency conversion, phase adjustment and amplitude recovery of the signal to ensure that the restored signal can accurately reflect the characteristics of the original information.

[0054] The decoder can restore the encoded information in the signal to the original data or recognizable information format. The demultiplexer can decompose the decoded signal stream into multiple independent signal channels or data streams.

[0055] Reference Figure 1 In an embodiment of the present disclosure, the dual-power adaptive backup Ku-band receiving system further comprises:

[0056] a voltage detection unit and a DC-DC conversion unit;

[0057] The voltage detection unit is connected with the DC-DC conversion unit, and the DC-DC conversion unit is connected with the control unit.

[0058] a current detection unit and a current conversion unit;

[0059] The current detection unit is connected with the current conversion unit, and the current conversion unit is connected with the DC-DC conversion unit.

[0060] In the embodiment, the voltage detection unit can collect the voltage signal input to the receiver, and convert the high voltage signal to a low voltage signal through the DC-DC conversion unit and send it to the control unit. The current detection unit can collect the working current of the receiver and input it to the current conversion unit, i.e. I-V converter, for signal conversion, which will be sent to the control unit for further analysis. The control unit selects a single-chip microcomputer with multiple AD channels, which can detect the input voltage and working current of the receiver, and send the status information of the device to the external terminal device through the communication unit in the receiver.

[0061] From the above, it can be concluded that the receiver integrates the self-state monitoring, which can detect the input voltage of the device and the working current of the receiver, and the control unit communicates with the master control module in real time through wired communication, and reports the self-state, which further improves the reliability of the system.

[0062] In one embodiment of the present disclosure, the dual-power self-adaptive backup Ku-band receiving system further comprises:

[0063] An automatic calibration module;

[0064] The automatic calibration module is connected with the master control module, and the automatic calibration module is configured to adjust the performance parameters of the Ku-band main receiver and / or the Ku-band backup receiver according to the instructions of the master control module.

[0065] The automatic calibration module comprises:

[0066] A temperature sensor, a humidity sensor and a stepping motor;

[0067] The temperature sensor, the humidity sensor and the stepping motor are connected with the master control module;

[0068] The stepping motor is configured to adjust the angle of the antenna in the Ku-band main receiver and / or the Ku-band backup receiver according to the instructions of the master control module.

[0069] In the embodiment, the automatic calibration module comprises a temperature sensor, a humidity sensor and a stepping motor. The temperature sensor and the humidity sensor can be used to monitor the temperature and humidity of the environment where the system is located, respectively, and send the information to the master control module. The master control module compares the information with the preset threshold value, controls the stepping motor to accurately adjust the angle of the antenna in the Ku-band main receiver and / or the backup receiver, optimizes the signal reception quality of the receiver, and improves the reception efficiency and accuracy.

[0070] For example, when the system receives the satellite signal at a low elevation angle, especially in rainy weather conditions, it may encounter rain attenuation problems. At this time, by detecting the temperature and humidity data, the driving motor can be controlled to adjust the elevation angle of the antenna array to avoid the influence of rain attenuation on the signal.

[0071] The above examples are only used to illustrate the technical solutions of the present disclosure, rather than limit the same; although the present disclosure is described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features thereof can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A dual-power adaptive backup Ku-band receiving system, characterized in that, include: Backup switch, Ku-band main receiver, Ku-band backup receiver, main control module and power adaptive module; The Ku-band main receiver, the Ku-band backup receiver, the control terminal of the backup switch, and the power adaptive module are all connected to the main control module. The first terminal of the backup switch is connected to the Ku-band main receiver, the second terminal of the backup switch is connected to the Ku-band backup receiver, and the third terminal of the backup switch is connected to the power adaptive module.

2. The dual-power adaptive backup Ku-band receiving system as described in claim 1, characterized in that, The Ku-band master receiver and the Ku-band backup receiver have the same structure. The Ku-band master receiver includes: Antenna unit, radio frequency unit, intermediate frequency unit, local oscillator unit, control unit, communication unit, and multiplexing unit; The antenna unit is connected to the radio frequency unit, the radio frequency unit is connected to the local oscillator unit and the intermediate frequency unit respectively, and the intermediate frequency unit is connected to the multiplexing unit; The control unit is connected to the multiplexing unit via the communication unit; The multiplexing unit is connected to the first terminal of the backup switch.

3. The dual-power adaptive backup Ku-band receiving system as described in claim 2, characterized in that, The multiplexing unit includes: Demodulator, decoder, and demultiplexer; The demodulator is connected to the decoder, and the decoder is connected to the demultiplexer.

4. The dual-power adaptive backup Ku-band receiving system as described in claim 2, characterized in that, Also includes: Voltage detection unit and DC-DC conversion unit; The voltage detection unit is connected to the DC-DC conversion unit, and the DC-DC conversion unit is connected to the control unit.

5. The dual-power adaptive backup Ku-band receiving system as described in claim 4, characterized in that, Also includes: Current detection unit and current conversion unit; The current detection unit is connected to the current conversion unit, and the current conversion unit is connected to the DC-DC conversion unit.

6. The dual-power adaptive backup Ku-band receiving system as described in claim 1, characterized in that, Also includes: Automatic calibration module; The automatic calibration module is connected to the main control module.

7. The dual-power adaptive backup Ku-band receiving system as described in claim 6, characterized in that, The automatic calibration module includes: Temperature sensor, humidity sensor, and stepper motor; The temperature sensor, the humidity sensor, and the stepper motor are all connected to the main control module.

Images