Ground station control method and ground station control system for executing real-time shooting and real-time transmission tasks by combining satellites

Abstract

The invention discloses a ground station control method and system for executing real-time shooting and real-time transmission tasks by combining satellites. Belongs to the technical field of remote sensing satellite ground station control. The method comprises the following steps: defining a task plan template executed by a ground station, wherein the task plan template comprises a task plan type; a satellite data transmission stage is divided into different time nodes, and the control process of each task plan is divided through the time nodes; and selecting a corresponding task plan according to the actual working condition of the satellite, and executing a corresponding control process. The method can be combined with a satellite to complete orderly and rapid switching of modes of a ground station in one arc section, so that it is possible to complete instruction uploading to the satellite, satellite attitude adjustment, satellite imaging and data transmission, data receiving and production, and data identification and interpretation in one arc section.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of remote sensing satellite ground station control, and particularly relates to the technical field of remote sensing satellite measurement and operation control ground station control. BACKGROUND

[0002] At present, the on-orbit service capability of satellites is increasingly strong, can be carried out while observing the earth and data transmission, and the maneuvering capability is increasingly strong, can quickly complete attitude adjustment after receiving instructions, so that the satellite can work on the shooting point. At present, the ground station needs to be able to work with the satellite to complete the real shooting and real transmission task. When the traditional ground station and satellite real shooting and transmission task cooperate, all preparation work needs to be completed before the task, which does not have flexibility, so new design is needed to adapt to the requirements of real shooting and real transmission task. SUMMARY

[0003] In order to solve the above technical problems, the present application provides a kind of ground station control method and system for joint satellite to execute real shooting and real transmission task.

[0004] The method comprises the following steps: S1, define the task plan template executed by the ground station, including the task plan type; S2, the satellite data transmission stage is divided into different time nodes, and the control process of each task plan is divided by time node; S3, according to the actual working condition of the satellite, select the corresponding task plan, and execute the corresponding control process.

[0005] Further, the task plan type includes single transmission task R, telemetry and remote control data transmission task TCR, telemetry and remote control task TC and single telemetry task T.

[0006] Further, the satellite data transmission stage is divided into different time nodes, which are specifically: capture start time T0, remote control start time T1, data transmission start time T2, remote control end time T3, data transmission end time T4 and capture end time T5.

[0007] Further, for single data transmission task R, the control process divided by time node is specifically: Before capture start time T0, complete preset, complete the preparation work of ground station demodulation equipment data transmission module; open the storage before data transmission start time T2; if real-time production of ground station receiving data is needed, complete the connection establishment work between production module and ground station demodulation equipment data transmission module before data transmission start time T2; when reaching data transmission end time T4, close the storage, release the connection resources, and if the production module needs to actively disconnect under the condition of real-time production connection; when reaching capture end time T5, release resources, and collect towards the sky.

[0008] Further, for telemetry remote control data transmission task TCR, the control process divided by time nodes is specifically as follows: Before capture start time T0, presetting is completed, and ground station TT&C module preparation work is completed; before remote control start time T1, power amplifier is turned on; at remote control start time T1, instruction uploading is started; at remote control end time T3, power amplifier is turned off; after successful turning off, ground station demodulation equipment data transmission module loading action is started, and ground station demodulation equipment data transmission module preparation work is completed; before data transmission start time T2, storage is turned on; if real-time production, connection is established before data transmission start time T2, and preparation is completed; at data transmission end time T4, storage is turned off, and connection resources are released; if real-time production is connected, active disconnection is performed; at capture end time T5, resources are released, and the system is stored.

[0009] Further, for telemetry remote control task TC, the control process divided by time nodes is specifically as follows: Before capture start time T0, presetting is completed, and ground station TT&C module preparation work is completed; before remote control start time T1, power amplifier is turned on; at remote control start time T1, instruction uploading is started; at remote control end time T3, power amplifier is turned off; at capture end time T5, resources are released, and the system is stored.

[0010] Further, for single telemetry task T, the control process divided by time nodes is specifically as follows: Before capture start time T0, presetting is completed, and ground station TT&C module preparation work is completed; at capture end time T5, resources are released, and the system is stored.

[0011] Further, the production module is a module for generating data for communication with the ground station in the satellite.

[0012] The system comprises a plan management module, a process control module, a parameter checking module, and a communication connection management module. The plan management module implements task plan issuing, issuing confirmation, cancellation, and cancellation confirmation. The process control module implements control of equipment according to time nodes in the control process of the task plan according to the type of the task plan. The parameter checking module implements checking of TT&C macros and data transmission macros. The communication connection management module implements resource management of TT&C uplink, telemetry forwarding link, and data transmission distribution link.

[0013] Further, the resource management of TT&C uplink, telemetry forwarding link, and data transmission distribution link by the communication connection management module is specifically as follows: For single transmission task R, management of data transmission distribution link, for telemetry remote control data transmission task TCR, management of telemetry uplink, telemetry forward link and data transmission distribution link, for telemetry remote control task TC, management of telemetry uplink and telemetry forward link, for single telemetry task T, management of telemetry forward link.

[0014] The method has the advantages that the satellite with the functions of real shooting and real transmission is used as the basis, a ground station control method is realized, the ordered and rapid switching of the mode of the ground station in an arc segment is realized, the uploading of the instruction to the satellite, the adjustment of the satellite posture, the imaging and data transmission of the satellite, the data receiving and production, the data identification and interpretation are realized in an arc segment. Compared with the traditional use mode, the control mode makes the function of the ground station more flexible, greatly shortens the emergency response time, the system and the method realize the shooting and data transmission in an arc segment based on the star and ground infrastructure, achieve the real-time and rapid response, the technology is advanced, has formed a normal use product, can provide services in combination with multiple satellites in orbit, and the result is good. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a ground station control system architecture diagram for the real shooting and real transmission task executed by the satellite in combination in the embodiment of the application. Figure 2 The figure is a satellite and ground station data transmission schematic diagram. DETAILED DESCRIPTION

[0016] The technical solutions of the application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0017] Embodiment 1, The embodiment of the application provides a ground station control method for executing a real shooting and real transmission task in combination with a satellite.

[0018] The following steps are used to realize the method: Step 1: First, define the task plan template executed by the ground station, including the task plan type. Step 2: Define different control processes according to the task plan type. Step three: If it is a single transmission task, all preparations such as presetting, loading of the ground station demodulation device data transmission module, and issuance of data transmission macros are completed before the capture start time T0; the storage is opened before the data transmission start time T2; if real-time production of the ground station received data is required, the connection between the production module and the demodulation device data transmission module needs to be established before the data transmission start time T2. When the data transmission end time T4 is reached, the storage is closed, the data transmission function is sent, the connection resources are released, and if the production module is in real-time production, the connection needs to be actively disconnected. The capture end time T5: the resources are released, and the equipment is stored facing the sky; Step four: If it is a telemetry and remote control data transmission task TCR, all preparations such as presetting, loading of the ground station telemetry and control module, and issuance of telemetry and control macros are completed before the capture start time T0; the power amplifier is turned on before the remote control start time T1; the instruction upload is executed at the remote control start time T1; the power amplifier is turned off at the remote control end time T3, and after the power amplifier is successfully turned off, the data transmission module loading action is performed, all preparations such as loading of the data transmission module and issuance of data transmission macros are completed, and the completion time is generally after the remote control end time T3; in general, T2 and T3 are separated by a period of time, which is generally determined by the satellite side to prepare for the connection of the real-time production system. The storage is opened at the data transmission start time T2; if real-time production is required, the connection needs to be established before the data transmission start time T2. When the data transmission end time T4 is reached, the storage is closed, the data transmission is sent, and the connection resources are released, and if real-time production is connected, the connection is actively disconnected. The capture end time T5: the resources are released, and the equipment is stored facing the sky; Step five: If it is a telemetry and remote control task TC, all preparations such as presetting, loading of the telemetry and control module, and issuance of telemetry and control macros are completed before the capture start time T0; the power amplifier is turned on before the remote control start time T1; the instruction upload is executed at the remote control start time T1; the power amplifier is turned off at the remote control end time T3; the capture end time T5: the resources are released, and the equipment is stored facing the sky; Step six: If it is a single telemetry task T, all preparations such as presetting, loading of the telemetry and control module, and issuance of telemetry and control macros are completed before the capture start time T0; the capture end time T5: the resources are released, and the equipment is stored facing the sky; Step seven: According to the actual satellite working condition, the tasks of steps three, four, or five can be executed, and step six is used as a supplement to all processes.

[0019] Embodiment 2, This embodiment is a further limitation of embodiment 1, and the specific embodiment of the ground station control method for jointly executing the real-time shooting and real-time transmission task of the satellite is as follows: Step one: first define the task plan template executed by the ground station, including the task plan type, the value of which can be single telemetry task T, telemetry and remote control task TC, single data transmission task R, telemetry and remote control data transmission task TCR; including capture start time T0, remote control start time T1, data transmission start time T2, remote control end time T3, data transmission end time T4, capture end time T5; Step two: define different control processes according to the task plan type; Step three: if it is a single data transmission task, complete the preset within 120s before the capture start time T0, complete the data transmission module loading, data transmission macro issuance and all preparation work; open the storage before 30s at the data transmission start time T2; if real-time production, establish a connection 60s before the data transmission start time T2, and need to be prepared. Arrive at the data transmission end time T4, close the storage, send the number, release the connection resources, and if the real-time production is connected, actively disconnect. Capture end time T5: release resources, and collect to the sky; Step four: if it is a telemetry and remote control data transmission task TCR, complete the preset within 120s before the capture start time T0, complete the measurement and control module loading, measurement and control macro issuance and all preparation work; open the power amplifier 10s before the remote control start time T1; start executing the instruction upload at the remote control start time T1; close the power amplifier at the remote control end time T3, and immediately enter the data transmission module loading action after the power amplifier is closed, complete the data transmission module loading, data transmission macro issuance and all preparation work, which is generally completed 60s after the remote control end time T3; in general, the interval between T2 and T3 is at least 240s, which is generally determined by the satellite side to cope with the preparation of real-time production system connection. Open the storage 30s before the data transmission start time T2; if real-time production, establish a connection 60s before the data transmission start time T2, and need to be prepared. Arrive at the data transmission end time T4, close the storage, send the number, release the connection resources, and if the real-time production is connected, actively disconnect. Capture end time T5: release resources, and collect to the sky; Step five: if it is a telemetry and remote control task TC, complete the preset within 120s before the capture start time T0, complete the measurement and control module loading, measurement and control macro issuance and all preparation work, open the power amplifier 10s before the remote control start time T1; start executing the instruction upload at the remote control start time T1; close the power amplifier at the remote control end time T3; capture end time T5: release resources, and collect to the sky; Step six: if it is a single telemetry task T, complete the preset within 120s before the capture start time T0, complete the measurement and control module loading, measurement and control macro issuance and all preparation work, and capture end time T5: release resources, and collect to the sky; Step seven: combine the actual satellite working condition, and possibly execute the task of step three or four or five, and step six as a supplement to all processes.

[0020] Example 3, The embodiment provides a ground station control system suitable for a joint satellite to perform a real shooting and real transmission task according to the method.

[0021] The architecture of the system is shown in Figure 1 The system comprises a plan management module, a process control module, a parameter checking module and a communication connection management module. The plan management module realizes task plan issuing, issuing confirmation, cancellation, cancellation confirmation; in order to ensure reliability, confirmation execution is required at each step of the plan execution level, after the plan is issued, it is necessary to judge whether the issuing confirmation is received, if three times of repeated sending are still not received, the abnormal handling mode is entered.

[0022] The process control module realizes the control work of the equipment according to the time node in the control process of the task plan type.

[0023] The parameter checking module realizes the checking work of the measurement and control macro and the data transmission macro.

[0024] The communication connection management module realizes the resource management of the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link. The communication connection management module realizes the resource management of the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link. The data transmission distribution link is managed for a single data transmission task R, the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link are managed for a telemetry remote control data transmission task TCR, the measurement and control uplink and the telemetry forwarding link are managed for a telemetry remote control task TC, and the telemetry forwarding link is managed for a single telemetry task T.

[0025] As shown in Figure 2 When the system is used to realize that the ground station cooperates with the satellite to complete the real shooting and real transmission task, the system can act as a control module between the satellite module and the ground station hardware module, and can also monitor and handle data.

Claims

1. A ground station control method for performing a live transmission task by a union satellite, characterized in that, The method comprises the following steps: S1, defining a task plan template executed by a ground station, comprising a task plan type; S2, dividing a satellite data transmission stage into different time nodes, and dividing a control process of each task plan through the time nodes; S3, selecting a corresponding task plan according to an actual working condition of the satellite, and executing a corresponding control process.

2. The ground station control method for performing a live transmission task by a joint satellite according to claim 1, characterized in that, The task plan type comprises a single telemetry task R, a telemetry and remote control telemetry task TCR, a telemetry and remote control task TC, and a single telemetry task T.

3. The ground station control method for performing a live transmission task by a joint satellite according to claim 2, characterized in that, The satellite data transmission stage is divided into different time nodes, specifically: a capture start time T0, a remote control start time T1, a telemetry start time T2, a remote control end time T3, a telemetry end time T4, and a capture end time T5.

4. The ground station control method for performing a live transmission task by a joint satellite according to claim 3, characterized in that, For the single telemetry task R, the control process divided through the time nodes is specifically: Before the capture start time T0, presetting is completed, and preparation work of a telemetry module of a ground station demodulation device is completed; before the telemetry start time T2, a storage is opened; if real-time production of a ground station receiving data is needed, connection establishment work between a production module and the telemetry module of the ground station demodulation device is completed before the telemetry start time T2; when the telemetry end time T4 is reached, the storage is closed, connection resources are released, and if the production module is connected in real time, the connection needs to be actively disconnected; when the capture end time T5 is reached, resources are released, and the system is stored towards the sky.

5. The ground station control method for performing a live transmission task by a joint satellite according to claim 4, characterized in that, For the telemetry and remote control telemetry task TCR, the control process divided through the time nodes is specifically: Before the capture start time T0, presetting is completed, and preparation work of a telemetry module of a ground station demodulation device is completed; before the telemetry start time T2, a storage is opened; if real-time production of a ground station receiving data is needed, connection establishment work between a production module and the telemetry module of the ground station demodulation device is completed before the telemetry start time T2; when the telemetry end time T4 is reached, the storage is closed, connection resources are released, and if the production module is connected in real time, the connection needs to be actively disconnected; when the capture end time T5 is reached, resources are released, and the system is stored towards the sky.

6. The ground station control method for performing a live transmission task by a joint satellite according to claim 5, characterized in that, For the telemetry and remote control task TC, the control process divided through the time nodes is specifically: Before the capture start time T0, presetting is completed, and preparation work of a telemetry module of a ground station demodulation device is completed; before the telemetry start time T2, a storage is opened; if real-time production of a ground station receiving data is needed, connection establishment work between a production module and the telemetry module of the ground station demodulation device is completed before the telemetry start time T2; when the telemetry end time T4 is reached, the storage is closed, connection resources are released, and if the production module is connected in real time, the connection needs to be actively disconnected; when the capture end time T5 is reached, resources are released, and the system is stored towards the sky.

7. The method according to claim 6, wherein the ground station control method for performing a live transmission task by a joint satellite is characterized in that, For the single telemetry task T, the control process divided through the time nodes is specifically: Before the capture start time T0, presetting is completed, and preparation work of a telemetry module of a ground station demodulation device is completed; before the telemetry start time T2, a storage is opened; if real-time production of a ground station receiving data is needed, connection establishment work between a production module and the telemetry module of the ground station demodulation device is completed before the telemetry start time T2; when the telemetry end time T4 is reached, the storage is closed, connection resources are released, and if the production module is connected in real time, the connection needs to be actively disconnected; when the capture end time T5 is reached, resources are released, and the system is stored towards the sky.

8. The ground station control method for performing a live transmission task by a joint satellite according to claim 7, characterized in that, The production module is a module for generating communication data between the satellite and the ground station.

9. A ground station control system for implementing the method of any one of claims 1-8 for performing live transmission tasks by a joint satellite, characterized in that, The system comprises a plan management module, a process control module, a parameter checking module, and a communication connection management module; The plan management module realizes task plan issuing, issuing confirmation, cancellation, and cancellation confirmation. The flow control module realizes the control of the equipment according to the time node in the control process of the task plan type and the task plan; The parameter checking module realizes the checking of the measurement and control macro and the data transmission macro; The communication connection management module realizes the resource management of the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link.

10. The ground station control system of claim 9, wherein, The resource management of the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link by the communication connection management module is specifically: The data transmission distribution link is managed by the communication connection management module for the single data transmission task R, the measurement and control uplink, the telemetry forwarding link and the data transmission distribution link are managed by the communication connection management module for the telemetry remote control data transmission task TCR, the measurement and control uplink and the telemetry forwarding link are managed by the communication connection management module for the telemetry remote control task TC, and the telemetry forwarding link is managed by the communication connection management module for the single telemetry task T.

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