Remote wireless control system suitable for satellite ground station

Abstract

The invention provides a remote wireless control system suitable for a satellite ground station, which is characterized in that the remote wireless control system comprises a control system service rear end and a plurality of control system service front ends, the control system service rear end and the control system service front ends are accessed to an international internet or a regional local area network through a network router, and the control system service rear end and the control system service front ends are connected with the control system service front ends. A ground station worker can realize network remote wireless access to a satellite ground station in multiple places, the control system service rear end serves as the satellite ground station and establishes a telemetering and remote control data transmission channel with a satellite running in orbit, and the control system service front end provides a telemetering and remote control data information interface. And a satellite user can carry out application tasks, and a ground station control interface is provided for a worker to carry out remote control on the satellite ground station. Through remote wireless control, the automation and intelligence level of the satellite ground station can be improved, the life quality of workers is improved, the operation cost of the ground station is reduced, and good benefits and values are created.

Description

Technical Field

[0001] This invention relates to remote control and wireless communication for satellite ground stations, and more particularly to a remote wireless control system suitable for satellite ground stations. Background Technology

[0002] Currently, satellite ground stations that communicate with spacecraft via radio can be classified into UHF, VHF, S, X, and other ground stations according to their communication bands. The types and sizes of communication antennas for ground stations in different communication bands will vary greatly, but they all share the common feature that the management and operation of ground stations cannot be separated from human operation and monitoring.

[0003] To ensure the quality of satellite-to-ground communication data and avoid electromagnetic interference from urban environments, satellite ground stations are generally built in areas with relatively good electromagnetic environments, such as remote locations with few buildings and few people, making resource allocation difficult and causing inconvenience to the work and lives of ground station staff. Furthermore, due to the special nature of spacecraft operations, staff often need to operate the satellite ground station in the middle of the night to establish remote control and telemetry channels, ensuring the smooth operation of spacecraft missions. This work mode requiring constant personnel on duty undoubtedly increases the operating costs of satellite ground stations and seriously affects the work and life quality of ground station staff.

[0004] Therefore, there is an urgent need and broad application prospects for operating satellite ground stations remotely via wireless control.

[0005] Insufficiency of existing technology:

[0006] (1) The equipment management of existing satellite ground stations is inseparable from human operation, and the level of automation and intelligence is low;

[0007] (2) Satellite ground stations are usually built in suburban environments, which makes it very inconvenient for staff to live, eat, and travel, seriously affecting their quality of work and life.

[0008] (3) Spacecraft and ground stations need to establish communication channels from time to time, which often requires staff to operate the ground station in the middle of the night. Over time, this will affect the physical and mental health of the staff. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a remote wireless control system suitable for satellite ground stations. The system comprises a control system service backend and multiple control system service frontends. Both the control system service backend and frontends are connected to the international internet or a regional local area network via a network router, enabling ground station personnel to remotely access the satellite ground station from multiple locations. The control system service backend, acting as the satellite ground station, establishes a telemetry and remote control data transmission channel with the satellite in orbit. The control system service frontends provide a remote control and telemetry data information interface for satellite users to carry out application tasks and a ground station control interface for personnel to remotely operate the satellite ground station.

[0010] Furthermore, the control system service backend includes a ground station antenna, a signal filter, a signal modulation device, and a signal demodulation device. The ground station antenna is used for receiving and transmitting radio signals to establish a reliable channel for satellite-to-ground communication. The signal demodulation device is used to demodulate downlink radio signals, extract digital information, and transmit it to the control host. The signal modulation device is used to modulate the digital information transmitted from the control host that needs to be uploaded to the satellite and convert it into radio signals.

[0011] Furthermore, the control system service backend also includes a rotator and rotator controller, a signal filter, a low-noise signal amplifier, and a high-power signal amplifier. The rotator is used to adjust the ground station antenna's pointing and tracking of the satellite, ensuring continuous and uninterrupted data communication for a period of time. The rotator controller, under the management of the control host, implements pointing control of the rotator. The signal filter filters the downlink signal received by the ground station, reducing the power intensity of electromagnetic wave signals outside the required band. The low-noise signal amplifier amplifies the filtered downlink signal, facilitating signal extraction and analysis. The high-power signal amplifier amplifies the uplink radio signal to increase the signal transmission distance.

[0012] Furthermore, the control system service backend also collects environmental information around the ground station through sensor devices to achieve safety monitoring of the surrounding status of the ground station, and manages the power supply of important equipment at the ground station through power distribution management equipment, shutting down equipment that does not need to be turned on during non-working hours.

[0013] Furthermore, the control system service backend includes a wind speed sensor and a temperature and humidity sensor. The wind speed sensor collects local wind speed information at the ground station in real time for environmental condition monitoring; the temperature and humidity sensor collects local temperature and humidity information at the ground station in real time for environmental condition monitoring.

[0014] Furthermore, the control system service backend includes information acquisition equipment, power distribution management equipment, and a control host. The information acquisition equipment is used to collect status information fed back from multiple sensors; the power distribution management equipment implements power supply and distribution management for important equipment in the satellite ground station; the control host is used to receive demodulated downlink data information, transmit uplink data information that needs to be sent, and realize control and management of the rotator, information acquisition equipment, and power distribution management equipment; the network router enables the control host to connect to the international Internet or internal local area network for data transmission and forwarding.

[0015] Furthermore, the control system service front end includes a network router, a control host, a remote telemetry data interface, and a ground station control interface. The network router enables the control host to connect to the international Internet or an internal local area network for data transmission and forwarding. The control host connects to the network through the network router to receive and send data, and provides satellite telemetry data to the remote telemetry data interface and ground station information data to the ground station control interface. The remote telemetry data interface is provided to satellite users to display the satellite telemetry data demodulated and parsed by the ground station, or to arrange the remote control data to be uploaded to the satellite. The ground station control interface is provided to ground station management personnel for displaying and controlling the ground station status, including displaying the local environment, managing equipment power supply and distribution, and controlling the pointing of the antenna rotator.

[0016] Furthermore, during the downlink transmission of telemetry information, at the back end of the control system service, the telemetry information transmitted by the satellite downlink is first received by the satellite ground station antenna. The ground station antenna transmits the downlink signal to a signal filter for filtering. After filtering, the signal is passed to a low-noise signal amplifier for power amplification, and then to a signal demodulation device for demodulation. The demodulated digital information is then transmitted to the control host, which then sends the telemetry information to the network server through a network router. At the front end of the control system service, the control host obtains the telemetry data from the network server through the network router, processes the data, and then transmits it to the remote control and telemetry data interface for use by satellite users.

[0017] When remote control information data is uploaded, at the front end of the control system service, the satellite user first arranges the remote control data to be uploaded to the satellite on the remote control and telemetry data interface. Then, the control host uploads the remote control data information to the network server through the network router. At the back end of the control system service, the control host obtains the remote control information from the network server through the network router and sends it to the signal modulation equipment for signal modulation. The modulated carrier signal is then amplified by a high-power signal amplifier. The amplified signal is finally transmitted through the ground station antenna and uploaded to the satellite.

[0018] Furthermore, during ground station control and management, at the control system service backend, the control host obtains the current antenna rotator pointing direction through the rotator controller and simultaneously performs closed-loop antenna pointing control. Wind speed sensors collect local wind speed information in real time, and temperature and humidity sensors collect indoor and outdoor temperature and humidity information in real time. All status information is collected by the information acquisition equipment and transmitted to the control host. In addition, the control host manages the power supply and distribution of critical equipment at the satellite ground station through power distribution management equipment. The control host transmits ground station management data, including rotator information, environmental status information, and power distribution status information, to the network server via a network router.

[0019] At the control system service front end, the control host obtains ground station management data from the network server through the network router and displays it on the ground station control interface; ground station management personnel remotely access and control the satellite ground station through the ground station control interface; in addition, the remote control system is configured with multiple service front ends in different locations for management personnel to access at different times.

[0020] Furthermore, the control host at the front end of the control system is configured with an automated execution program to automatically track satellites and control relevant ground station equipment for telemetry and communication within a pre-set time range.

[0021] The remote wireless control system for satellite ground stations of the present invention operates the satellite ground station through remote wireless control, which can improve the automation and intelligence level of the satellite ground station, improve the quality of life of the staff, reduce the operating cost of the ground station, and create good economic benefits. Attached Figure Description

[0022] Figure 1 This is a diagram illustrating the composition of the remote wireless control system for satellite ground stations according to the present invention.

[0023] Figure 2 This is a diagram showing the composition of the control system backend of the present invention;

[0024] Figure 3 This is a diagram showing the front-end components of the control system of the present invention. Detailed Implementation

[0025] This invention provides a remote wireless control system suitable for satellite ground stations. The specific embodiments of this invention will be further described in detail below with reference to the accompanying drawings.

[0026] First, the working principle of the present invention will be described with reference to the accompanying drawings.

[0027] Figure 1 This is a diagram illustrating the composition of the remote wireless control system for satellite ground stations according to the present invention. Figure 1As shown, the remote wireless control system for satellite ground stations of the present invention mainly consists of a control system service backend and multiple control system service frontends.

[0028] The control system service front end mainly has the following functions:

[0029] First, it establishes a telemetry and remote control data transmission channel with satellites in orbit, a function that is the same as that of traditional satellite ground stations.

[0030] Second, by collecting environmental information around the ground station through some sensor devices, the safety monitoring of the surrounding conditions of the ground station can be achieved;

[0031] Third, power supply and distribution management equipment is used to manage the power supply of important equipment at the ground station, and equipment that does not need to be turned on is shut down during non-working hours, thereby reducing system power consumption and extending equipment life.

[0032] Fourth, by connecting to the international Internet or a local area network through a network router, ground station staff can remotely access the network wirelessly from multiple locations.

[0033] The control system service backend mainly has the following functions:

[0034] First, by connecting to the international Internet or a local area network through a network router, ground station staff can remotely access the network wirelessly from multiple locations.

[0035] Second, it provides a remote control and telemetry data information interface for satellite users to carry out application tasks;

[0036] Third, it provides a ground station control interface for staff to remotely operate the satellite ground station.

[0037] Figure 2 This is a diagram illustrating the backend components of the control system of the present invention. (See diagram below.) Figure 2 As shown, the control system service backend of the present invention mainly consists of ground station antennas, signal modulation and demodulation equipment, rotators and their controllers, environmental acquisition sensors, power supply and distribution management equipment, control host, and network routers.

[0038] Ground station antennas are used for receiving and transmitting radio signals, establishing reliable channels for satellite-to-ground communication.

[0039] The rotator is used to adjust the ground station antenna's pointing and tracking of the satellite, ensuring continuous and uninterrupted data communication for a period of time.

[0040] The signal filter filters the downlink signal received by the ground station, reducing the power intensity of electromagnetic wave signals outside the required band.

[0041] Low-noise signal amplifiers can amplify filtered downlink signals, making signal extraction and analysis easier.

[0042] Signal demodulation equipment is used to demodulate downlink radio signals and extract digital information to transmit to the control host.

[0043] Signal modulation equipment is used to modulate the digital information transmitted from the control host that needs to be uploaded to the satellite, and convert it into radio signals.

[0044] High-power signal amplifiers amplify the power of uplink radio signals to increase the signal transmission distance.

[0045] Wind speed sensors can collect local wind speed information at ground stations in real time for environmental condition monitoring.

[0046] Temperature and humidity sensors can collect local temperature and humidity information at ground stations in real time for environmental condition monitoring.

[0047] The rotator controller can control the direction of the rotator under the management of the control host.

[0048] Information acquisition equipment is used to collect status information fed back from multiple sensors.

[0049] The power distribution management equipment manages the power supply and distribution of important equipment in the satellite ground station.

[0050] The control host is used to receive demodulated downlink data information, transmit uplink data information that needs to be sent, and control and manage the rotary generator, information acquisition equipment, and power distribution management equipment.

[0051] A network router enables the control host to connect to the international Internet or an internal local area network for data transmission and forwarding.

[0052] The ground station antenna, rotator, and wind speed sensor are located outdoors, while the temperature and humidity sensors are distributed both indoors and outdoors. Other facilities and equipment are located indoors.

[0053] Figure 3 This is a diagram illustrating the front-end components of the control system of the present invention. Figure 3 As shown, the control system service front end of the present invention mainly consists of a network router, a control host, a remote control and telemetry data interface, and a ground station control interface.

[0054] A network router enables the control host to connect to the international Internet or an internal local area network for data transmission and forwarding.

[0055] The control host connects to the network through a network router to receive and send data, and provides satellite telemetry and control data to the remote control and telemetry data interface, and provides ground station information data to the ground station control interface.

[0056] The remote control and telemetry data interface is provided to satellite users to display satellite telemetry data demodulated and parsed by the ground station, or to arrange remote control data that needs to be uploaded to the satellite.

[0057] The ground station control interface is provided for use by ground station management personnel for displaying and controlling the status of the ground station, including displaying the local environment, managing the power supply and distribution of equipment, and controlling the pointing of the antenna rotator.

[0058] The embodiments of the present invention are as follows.

[0059] (1) Downlink telemetry information data

[0060] At the back end of the control system service, the telemetry information transmitted by the satellite downlink is first received by the satellite ground station antenna. The ground station antenna transmits the downlink signal to the signal filter for filtering. After filtering, the signal is passed to the low noise signal amplifier for power amplification, and then to the signal demodulation equipment for signal demodulation. The demodulated digital information is then transmitted to the control host, and the control host then sends the telemetry information to the network server through the network router.

[0061] At the front end of the control system service, the control host obtains telemetry data from the network server through the network router, processes the data, and then transmits it to the remote control and telemetry data interface for use by satellite users.

[0062] (2) Remote control information data uplink

[0063] At the front end of the control system service, the satellite user first arranges the remote control data to be sent to the satellite on the remote control and telemetry data interface, and then the control host uploads the remote control data information to the network server through the network router.

[0064] At the back end of the control system service, the control host obtains the remote control information from the network server through the network router and sends it to the signal modulation equipment for signal modulation. The modulated carrier signal is then amplified by a high-power signal amplifier, and the amplified signal is finally transmitted through the ground station antenna to the satellite.

[0065] (3) Ground station control and management

[0066] In the backend of the control system, the control host obtains the current orientation of the antenna rotator through the rotator controller, and can also perform closed-loop control of the antenna orientation.

[0067] The wind speed sensor can collect local wind speed information at the satellite ground station in real time, and the temperature and humidity sensor can collect indoor and outdoor temperature and humidity information at the satellite ground station in real time. All status information is collected by the information acquisition equipment and then transmitted to the control host.

[0068] In addition, the control host can manage the power supply and distribution of important equipment at the satellite ground station through power distribution management equipment. The control host transmits ground station management data, such as rotator information, environmental status information, and power distribution status information, to the network server through a network router.

[0069] At the control system service front end, the control host obtains ground station management data from the network server through a network router and displays it on the ground station control interface. Ground station management personnel can remotely access and control the satellite ground station through the ground station control interface. Furthermore, the remote control system can be configured with multiple service front ends at different locations for management personnel to access at different times.

[0070] Meanwhile, in order to further reduce the workload of ground station staff and enhance the unmanned operation capability of satellite ground stations, the control host at the service front end is equipped with an automated execution program, which can automatically track the satellite and automatically control relevant ground station equipment for telemetry, telemetry and communication within a pre-set time range.

[0071] The effects and prospects for promotion of this invention:

[0072] This invention addresses the need for remote wireless control and unattended operation of satellite ground stations by designing a remote wireless control system suitable for them. In addition to the traditional functions of transmitting and receiving telemetry and remote control information, this control system can also collect environmental status information around the ground station and control the power supply and distribution status of critical equipment through power management devices. Ground station administrators no longer need to be stationed in harsh outdoor environments; instead, they can control the satellite ground station remotely via wireless access, improving the working environment and significantly reducing operating costs.

[0073] This invention is applicable to satellite ground stations in most frequency bands and has broad application and promotion prospects. While improving the overall automation and intelligence level of satellite ground stations and demonstrating the superb technical capabilities of ground station operators, it can also attract investment for operators, which is of great significance and value.

[0074] It should be noted that the above description is merely illustrative and explanatory of the present invention. Those skilled in the art should understand that any modifications and substitutions to the present invention fall within the scope of protection of the present invention.

Claims

1. A remote wireless control system suitable for satellite ground stations, characterized in that, It includes a control system service backend and multiple control system service frontends. Both the control system service backend and the control system service frontends are connected to the international Internet or a regional local area network through a network router, enabling ground station staff to remotely access the satellite ground station from multiple locations. The control system service backend, as the satellite ground station, establishes a telemetry and remote control data transmission channel with the satellite in orbit. The control system service frontends provide a remote control and telemetry data information interface for satellite users to carry out application tasks, and provide a ground station control interface for staff to remotely operate the satellite ground station.

2. The remote wireless control system for satellite ground stations according to claim 1, characterized in that, The control system service backend includes a ground station antenna, a signal filter, a signal modulation device, and a signal demodulation device. The ground station antenna is used for receiving and transmitting radio signals to establish a reliable channel for satellite-to-ground communication. The signal demodulation device is used to demodulate downlink radio signals, extract digital information, and transmit it to the control host. The signal modulation device is used to modulate the digital information transmitted from the control host that needs to be uploaded to the satellite and convert it into radio signals.

3. The remote wireless control system for satellite ground stations according to claim 2, characterized in that, The control system service backend also includes a rotator and rotator controller, a signal filter, a low-noise signal amplifier, and a high-power signal amplifier. The rotator is used to adjust the ground station antenna's pointing and tracking of the satellite to ensure continuous and uninterrupted data communication for a period of time. The rotator controller, under the management of the control host, implements pointing control of the rotator. The signal filter filters the downlink signal received by the ground station, reducing the power intensity of electromagnetic wave signals outside the required band. The low-noise signal amplifier amplifies the filtered downlink signal to facilitate signal extraction and analysis. The high-power signal amplifier amplifies the uplink radio signal to increase the signal transmission distance.

4. The remote wireless control system for satellite ground stations according to claim 3, characterized in that, The control system service backend also collects environmental information around the ground station through sensor devices to achieve safety monitoring of the surrounding status of the ground station, and manages the power supply of important equipment of the ground station through power supply and distribution management equipment, and shuts down equipment that does not need to be turned on during non-working hours.

5. The remote wireless control system for satellite ground stations according to claim 4, characterized in that, The control system service backend includes a wind speed sensor and a temperature and humidity sensor. The wind speed sensor collects local wind speed information at the ground station in real time for environmental condition monitoring; the temperature and humidity sensor collects local temperature and humidity information at the ground station in real time for environmental condition monitoring.

6. The remote wireless control system for satellite ground stations according to claim 5, characterized in that, The control system service backend includes information acquisition equipment, power distribution management equipment, and a control host. The information acquisition equipment is used to collect status information fed back from multiple sensors. The power distribution management equipment implements power supply and distribution management for important equipment in the satellite ground station. The control host is used to receive demodulated downlink data information, transmit uplink data information that needs to be sent, and realize control and management of the rotator, information acquisition equipment, and power distribution management equipment. The network router enables the control host to connect to the international Internet or internal local area network for data transmission and forwarding.

7. The remote wireless control system for satellite ground stations according to claim 1, characterized in that, The control system service front end includes a network router, a control host, a remote telemetry data interface, and a ground station control interface. The network router enables the control host to access the international Internet or an internal local area network for data transmission and forwarding. The control host accesses the network through the network router to receive and send data, and provides satellite telemetry data to the remote telemetry data interface and ground station information data to the ground station control interface. The remote control and telemetry data interface is provided to satellite users to display satellite telemetry data demodulated and parsed by the ground station, or to arrange remote control data to be uploaded to the satellite; the ground station control interface is provided to ground station management personnel to display and control the status of the ground station, including display of the local environment, power supply and distribution management of equipment, and pointing control of the antenna rotator.

8. The remote wireless control system for satellite ground stations according to claim 1, characterized in that, During the downlink of telemetry information data, at the backend of the control system service, the telemetry information transmitted by the satellite downlink is first received by the satellite ground station antenna. The ground station antenna transmits the downlink signal to the signal filter for filtering. After filtering, the signal is transmitted to the low noise signal amplifier for power amplification, and then to the signal demodulation equipment for signal demodulation. The demodulated digital information will be transmitted to the control host, and the control host will then send the telemetry information to the network server through the network router. At the front end of the control system service, the control host obtains telemetry data from the network server through the network router, processes the data, and then transmits it to the remote telemetry data interface for use by satellite users. When remote control information data is uploaded, at the front end of the control system service, the satellite user first arranges the remote control data to be uploaded to the satellite on the remote control and telemetry data interface. Then, the control host uploads the remote control data information to the network server through the network router. At the back end of the control system service, the control host obtains the remote control information from the network server through the network router and sends it to the signal modulation equipment for signal modulation. The modulated carrier signal is then amplified by a high-power signal amplifier. The amplified signal is finally transmitted through the ground station antenna and uploaded to the satellite.

9. The remote wireless control system for satellite ground stations according to claim 1, characterized in that, During ground station control and management, at the control system service backend, the control host obtains the current antenna rotator pointing direction through the rotator controller and simultaneously performs closed-loop antenna pointing control. Wind speed sensors collect local wind speed information in real time, and temperature and humidity sensors collect indoor and outdoor temperature and humidity information. All status information is collected by the information acquisition equipment and transmitted to the control host. Furthermore, the control host manages the power supply and distribution of critical equipment at the satellite ground station through power distribution management equipment. Finally, the control host transmits ground station management data, including rotator information, environmental status information, and power distribution status information, to the network server via a network router. At the control system service front end, the control host obtains ground station management data from the network server through the network router and displays it on the ground station control interface; ground station management personnel remotely access and control the satellite ground station through the ground station control interface; in addition, the remote control system is configured with multiple service front ends in different locations for management personnel to access at different times.

10. The remote wireless control system for satellite ground stations according to claim 1, characterized in that, The control host at the front end of the control system is configured with an automated execution program to automatically track satellites and control relevant ground station equipment for telemetry and communication within a pre-set time range.

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