CN113741494A - System and method for monitoring on-track safety state of drivable antenna - Google Patents
System and method for monitoring on-track safety state of drivable antenna Download PDFInfo
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- CN113741494A CN113741494A CN202110955694.4A CN202110955694A CN113741494A CN 113741494 A CN113741494 A CN 113741494A CN 202110955694 A CN202110955694 A CN 202110955694A CN 113741494 A CN113741494 A CN 113741494A
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
- G05D1/0808—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft
- G05D1/0816—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft to ensure stability
- G05D1/0833—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft to ensure stability using limited authority control
Abstract
The invention provides an on-orbit safety state monitoring system and method capable of driving an antenna, which comprises a monitoring camera, a drivable antenna and a deep space probe platform, wherein the drivable antenna is connected with the monitoring camera; the drivable antenna pointing adjustment; the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; if the driving abnormity appearing on the drivable antenna is continuously judged to reach the preset times, the monitoring camera informs the deep space detector platform of the drivable antenna driving abnormity; and after receiving the information that the drivable antenna is abnormally driven, the deep space probe platform carries out the safe processing of the drivable antenna. The method adopts image acquisition, data processing and judgment methods to monitor the on-orbit state of the antenna in real time, autonomously implements antenna safe driving treatment when abnormal judgment is carried out, realizes the on-orbit real-time monitoring and treatment of the antenna driving abnormity, improves the processing timeliness and autonomy of the antenna driving abnormity, does not need ground intervention, and is particularly suitable for the field of deep space detection.
Description
Technical Field
The invention relates to the technical field of monitoring of antenna safety states of deep space detectors, in particular to a system and a method for monitoring on-orbit safety states of drivable antennas. In particular, the invention preferably relates to an on-orbit safety state monitoring method and system for a drivable large-aperture antenna.
Background
The drivable antenna is one of the ground communication antennas commonly employed by spacecraft. Due to the characteristic of long distance, in order to realize effective communication to the ground, the deep space sounding task usually adopts a method of increasing the aperture of an antenna to improve the communication rate to the ground. The operation state of the large-aperture antenna is related to the success of the deep space exploration task, and the large-aperture antenna operation state monitoring method is very important for the implementation state monitoring of the large-aperture antenna. Due to the characteristics of a deep space detection task, a deep space detector is usually far away from the earth, for example, a Mars detection is taken as an example, the detector can be as far as 4 hundred million kilometers away from the earth during the flying around the Mars, and the one-way time delay of the earth reaches 22 min. At the moment, if the large-aperture antenna is abnormal, the time delay of the bidirectional device is needed when the abnormal state transmits the ground and ground disposal instruction to reach the device, the real-time processing cannot be realized, and higher requirements are provided for the autonomous judgment and disposal on the device.
With the development of camera technology, the application of camera imaging for condition monitoring is more and more extensive. The imaging technology can realize the visual monitoring of the measured target, and the auxiliary image processing technology can realize the extraction of the key information of the measured target. In a deep space detection task, a monitoring camera is configured for multiple tasks to realize visual display of key components of a detector, but a monitoring system for automatically judging and controlling the operation state of a large-caliber antenna is not available.
Through the search of the prior art, the comparison patent comprises the following steps: the Chinese patent invention publication No. CN108583934A discloses a ground test system for calibrating a deep space exploration large-aperture antenna based on a hanging device, which comprises an on-board device and a ground device, wherein the on-board device comprises the large-aperture antenna, an on-board low-gain receiving antenna, an antenna driving control device and an on-board communication device; the ground equipment comprises a hanging device, a ground signal simulator, a ground low-gain transmitting antenna, a theodolite and a frequency spectrograph, wherein the hanging device is used for effectively balancing the gravity influence of the large-aperture antenna in a static state and a driving state, a ground signal simulation source, the low-gain transmitting antenna and the large-aperture antenna are used for simulating an on-track ground communication state, and the low-gain receiving antenna is used for reversely calculating the signal intensity of the large-aperture antenna through reasonable position layout; and a theodolite is adopted to calibrate the pointing accuracy of the mechanical axis of the large-aperture antenna, and the radio frequency calibration accuracy of the large-aperture antenna is inverted. The document discloses a ground calibration test system for a large-aperture antenna, which can simulate an in-orbit calibration process of the large-aperture antenna, but cannot realize the abnormal judgment of the large-aperture antenna and cannot perform in-orbit real-time response on the abnormal large-aperture antenna.
The Chinese patent invention publication No. CN101582205A discloses a method and a device for monitoring the flight state of a low-altitude airspace aircraft, and the method and the device comprise an aircraft information detection terminal and a monitoring center information processing terminal, wherein the aircraft information detection terminal is installed on the aircraft, and the monitoring center information processing terminal is installed in a ground monitoring center. The document discloses a method and a device for monitoring the flight state of a low-altitude airspace aircraft, which utilize information interaction between aircraft information detection terminal boxes and monitoring center information processing terminals to realize monitoring of the flight state of the low-altitude airspace aircraft. The monitoring method and the monitoring device in the patent application are only suitable for installation and monitoring of the flight state of the low-altitude airspace aircraft, and are not suitable for on-orbit state safety monitoring of the large-aperture antenna of the deep space probe.
The chinese patent publication CN109039422A discloses an in-orbit calibration system and method for a deep space detection high-gain antenna, wherein the in-orbit calibration system for a deep space detection high-gain antenna adopts a ground station and a ground station receiving detector, the ground station mainly provides a high-sensitivity receiver and a large antenna, the ground station receiving detector transmits a single beacon or a residual carrier radio frequency signal, finds out the time when the received signal is strongest, and inverts through the ground station receiving detector to give the position of the time pointing to the space. The document provides an in-orbit calibration method for a large-aperture antenna, which is used for receiving the signal conditions of the large-aperture antenna under different directions through a ground station and determining the directional deviation of the large-aperture antenna. The invention aims to measure the deviation between the driving angle of the large-caliber antenna and the theoretical state and correct the deviation, thereby improving the efficiency of the ground communication of the large-caliber antenna.
Chinese patent publication No. CN113156225A discloses an in-orbit pointing calibration method for a deep space high gain antenna, where S1 sends uplink radio frequency signals to the high gain antenna to be calibrated and a corresponding low gain antenna; s2, acquiring receiver signal levels corresponding to the two sets of antennas; s3, calculating a gain value corresponding to the current pointing angle of the high-gain antenna; s4, injecting a zero correction instruction to the pointing mechanism, and changing the offset angle of the high-gain antenna; s5 repeats steps S1 to S4 until the calibration is completed.
In view of the above-mentioned related art, the inventors consider that the above-mentioned method is difficult to monitor the in-orbit state of the antenna in real time, difficult to autonomously perform the antenna safe driving handling when determining an abnormality, difficult to monitor and handle the in-orbit abnormality of the antenna in real time, and low in the timeliness and autonomy of handling the antenna driving abnormality.
Disclosure of Invention
In view of the shortcomings in the prior art, it is an object of the present invention to provide a system and method for monitoring the on-track safety status of a drivable antenna.
The invention provides an on-orbit safety state monitoring system capable of driving an antenna, which comprises a monitoring camera, a drivable antenna and a deep space probe platform, wherein the drivable antenna is connected with the monitoring camera;
the orientation of the drivable antenna is adjustable;
the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; if the driving abnormity appearing on the drivable antenna is continuously judged to reach the preset times, the monitoring camera informs the deep space detector platform of the drivable antenna driving abnormity;
and the deep space probe platform receives the information that the drivable antenna is abnormally driven and carries out the safe processing of the drivable antenna.
Preferably, the monitoring camera images the orientation adjustment process of the drivable antenna to obtain image data, performs image data processing in real time, and extracts the contour of the drivable antenna from the image data; a safety boundary which is compared with the contour of the drivable antenna is arranged in the monitoring camera, the contour of the drivable antenna is compared with the safety boundary, and if the contour of the drivable antenna exceeds the safety boundary, the drivable antenna is judged to be abnormally driven; after continuously judging that the abnormity reaches the preset times, stopping judging by the monitoring camera to enter a waiting period, and informing the deep space detector platform that the driving antenna is abnormal;
after receiving the driving abnormal information of the drivable antenna, the deep space probe platform carries out safe processing on the drivable antenna;
the monitoring camera resumes judgment after the waiting period is over, and terminates the judgment if the drivable abnormality is judged again within a predetermined time.
Preferably, the system also comprises a ground information processing terminal;
image data shot by the monitoring camera is transmitted to the deep space detector platform in real time;
the deep space probe platform stores the image data, and the deep space probe transmits the image data to the ground;
and the ground information processing terminal receives and processes the image data to realize ground visual interpretation confirmation of the on-orbit driving state of the drivable antenna.
Preferably, the monitoring camera at least comprises an imaging module, a data processing module and a power supply module;
the imaging module finishes image shooting and encoding to obtain image data;
the data processing module finishes the acquisition of state information to obtain state data and combines the image data and the state data;
and the power supply module completes power distribution management, receives power supply of the deep space detector platform and provides power distribution inside the monitoring camera.
Preferably, the monitoring camera is connected with the deep space exploration platform through a cable;
the deep space detection platform provides power supply and control for the monitoring camera, receives state information and shot image information of the monitoring camera, and receives and responds to antenna driving abnormity information sent by the monitoring camera.
Preferably, the monitoring camera performs image acquisition at a predetermined frequency.
Preferably, after the monitoring camera continuously judges that the abnormity reaches the preset times, the judgment is stopped for a waiting period, the deep space probe platform is informed of the abnormity of the driving antenna, and the deep space probe platform drives the driving antenna safely when the monitoring camera enters the waiting period.
Preferably, the monitoring camera includes a single shooting mode and a shooting judgment mode; in the single shooting mode, the monitoring camera is used as a shooting camera; and when in the shooting judgment mode, the monitoring camera performs shooting, and performs extraction of the contour of the drivable antenna and comparison and judgment of the safety boundary in real time.
Preferably, when the monitoring camera and the drivable antenna are mounted, the reflecting surface of the drivable antenna is positioned in the field of view of the monitoring camera.
The invention provides an on-track safety state monitoring method for a drivable antenna, which comprises the following steps:
step 1: adjusting the drivable antenna pointing direction; the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; if the driving abnormity appearing on the drivable antenna is continuously judged to reach the preset times, the monitoring camera informs the deep space detector platform of the drivable antenna driving abnormity;
step 2: and the deep space probe platform receives the information that the drivable antenna is abnormally driven and carries out the safe processing of the drivable antenna.
Compared with the prior art, the invention has the following beneficial effects:
1. the method adopts image acquisition, data processing and judgment methods to monitor the on-orbit state of the antenna in real time, autonomously implements antenna safe driving treatment when abnormal judgment is carried out, realizes the on-orbit real-time monitoring and treatment of the antenna driving abnormity, improves the processing timeliness and autonomy of the antenna driving abnormity, does not need ground intervention, and is particularly suitable for the field of deep space detection;
2. the method adopts the measures of combining continuous abnormity judgment, waiting for treatment time and secondary judgment, avoids the risks of judging abnormity again in a fault treatment period, judging abnormity again when treatment fails and the like, and has strong practicability and fault tolerance;
3. the invention adopts the mode of image real-time acquisition, transmission and storage, and reserves a channel for judging the fault condition again for ground operators.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a functional block diagram of a monitoring system of the present invention;
FIG. 2 is a schematic view of the determination and processing flow of the monitoring method of the present invention;
FIG. 3 is a schematic view of the field of view and the profile of the antenna of the surveillance camera of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The embodiment of the invention discloses an on-orbit safety state monitoring system capable of driving a large-aperture antenna, which comprises a monitoring camera, a drivable antenna, a deep space probe platform and a ground information processing terminal as shown in figures 1 and 2. The orientation of the drivable antenna may be adjusted. The monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; and if the driving abnormity appearing on the driving antenna reaches the preset times, the monitoring camera informs the deep space detector platform of the driving abnormity of the driving antenna.
The monitoring camera at least comprises an imaging module, a data processing module and a power supply module. The imaging module finishes image shooting and encoding to obtain image data. And the data processing module finishes the acquisition of the state information to obtain state data and combines the image data and the state data. And the power supply module completes power distribution management, receives power supply of the deep space detector platform and provides power distribution inside the monitoring camera. The imaging module finishes image shooting and encoding; the data processing module finishes the collection of state information and the combination of image data and state data; and the power supply module completes power distribution management, receives primary power supply of the deep space detector platform and provides secondary power distribution inside the monitoring camera. The monitoring camera carries out image acquisition, antenna contour extraction and safety region comparison at a preset frequency, the default state is 1s once, and the preset frequency can be adjusted by a visual task.
The monitoring camera images the direction adjustment process of the drivable antenna to obtain image data, performs image data processing in real time, and extracts the outline of the drivable antenna from the image data; a safety boundary for comparing the outline of the drivable antenna with the outline of the drivable antenna is arranged in the monitoring camera, the outline of the drivable antenna is compared with the safety boundary, and if the outline of the drivable antenna exceeds the safety boundary, the drivable antenna is judged to be abnormally driven. And after continuously judging that the abnormity reaches the preset times, stopping judging by the monitoring camera to enter a waiting period, and informing the deep space detector platform that the driving of the antenna is abnormal. The monitoring camera comprises a single shooting mode and a shooting judgment mode; in the single shooting mode, the monitoring camera is used as a shooting camera; and when in the shooting judgment mode, the monitoring camera performs shooting, and performs extraction of the contour of the drivable antenna and comparison and judgment of the safety boundary in real time.
And after receiving the driving abnormal information of the drivable antenna, the deep space probe platform carries out safe processing on the drivable antenna. The monitoring camera resumes judgment after the waiting period is over, and terminates the judgment if the drivable abnormality is judged again within a predetermined time. Image data shot by a monitoring camera is transmitted to a deep space detector platform in real time; the deep space probe platform stores the image data, and the deep space probe transmits the image data to the ground. And the ground information processing terminal receives and processes the image data to realize ground visual interpretation confirmation of the on-orbit driving state of the drivable antenna. The image data can be requested to the ground, and the image data is received and processed by the ground information processing terminal, so that ground visual secondary interpretation confirmation of the antenna in-orbit driving state is realized.
The monitoring camera images the orientation adjustment process of the drivable antenna, performs image data processing in real time, extracts the outline of the drivable antenna, compares the outline with a safety boundary, and judges that the drivable antenna is abnormal when the outline exceeds the safety boundary; after continuously judging that the abnormity reaches the preset times, stopping judging by the monitoring camera to enter a waiting period, and informing the deep space detector platform that the driving antenna is abnormal; after receiving the driving abnormal information, the deep space probe platform autonomously carries out safe processing on the drivable antenna; resuming the judgment after the monitoring camera waiting period is over, and if the driving abnormity is judged again within the preset time, terminating the judgment; image data shot by a monitoring camera is transmitted to a deep space probe platform in real time, and the deep space probe platform stores the image data; the image data is transmitted to the ground through on-demand transmission and received and processed through a ground information processing terminal, so that ground visual secondary interpretation confirmation of the antenna in-orbit driving state is realized.
The monitoring camera images the drive adjustment process of the large-aperture antenna, extracts an antenna profile from image processing, compares the antenna profile with an operation safety boundary to judge whether the antenna drive is abnormal or not, and informs the deep space probe platform after judging the abnormality; the deep space probe platform autonomously executes antenna safety disposal measures; the shot image data can be transmitted to the ground in a video-on-demand mode, and the ground processing result and the on-orbit processing result are compared and confirmed.
The monitoring camera is connected with the deep space detection platform through a cable. The deep space detection platform provides power supply and control for the monitoring camera, receives state information and shot image information of the monitoring camera, and receives and responds to antenna driving abnormity information sent by the monitoring camera. The monitoring camera is connected with the deep space detection platform by adopting a cable. The deep space detection platform provides power supply and control for the monitoring camera, receives state information and shot image information of the monitoring camera, and receives and responds to antenna driving abnormity information sent by the monitoring camera.
And after continuously judging that the abnormity reaches the preset times, the monitoring camera stops judging for a waiting period, and informs the deep space detector platform of driving the antenna to be abnormal, wherein the preset times is 10 times by default, and the preset times can be adjusted visually according to tasks.
And when the monitoring camera enters a waiting period, the deep space detector platform implements safe driving of the drivable antenna. The waiting period is used for implementing antenna safety driving on the deep space probe platform; the waiting period is defaulted to 15min and can be adjusted by a visual task. Resuming the judgment after the monitoring camera waiting period is over, and if the driving abnormity is judged again within the preset time, terminating the judgment; the preset time is defaulted to 1min, and the visual task is adjusted. The monitoring camera is used for comparing and judging the safety boundary, so that the nominal safety driving range of the driving antenna is restricted, and the safety boundary can be obtained through on-orbit scene visual simulation, real object scene pre-shooting and the like. When the monitoring camera and the drivable antenna are mounted, the reflecting surface of the drivable antenna is positioned in the field of view of the monitoring camera. When the monitoring camera and the drivable antenna are arranged, the reflecting surface of the large-aperture antenna needs to be ensured to be positioned in the view field of the monitoring camera. The temperature environment of the monitoring camera is ensured by the deep space probe platform, and the deep space probe platform adopts thermal control measures to ensure that the temperature of the monitoring camera is within +/-50 ℃ during working.
The embodiment of the invention also discloses an on-orbit safety state monitoring method capable of driving the large-caliber antenna, which comprises the following steps:
step 1: adjusting the drivable antenna pointing direction; the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; and if the driving abnormity appearing on the driving antenna reaches the preset times, the monitoring camera informs the deep space detector platform of the driving abnormity of the driving antenna. The step 1 comprises the following steps: step 1.1: the monitoring camera images the direction adjustment process of the drivable antenna and transmits the images to the deep space detector platform for storage in real time. Step 1.2: the monitoring camera processes the photographed image and extracts the antenna profile. Step 1.3: the surveillance camera compares the extracted antenna profile to the security boundary. Step 1.4: the monitoring camera determines the driving state of the antenna; if the data is normal, turning to the step 1.3; if abnormal, go to step 1.5. Step 1.5: the monitoring camera determines whether there are 10 consecutive anomalies; if yes, turning to step 1.6; if not, go to step 1.3. Step 1.6: the monitoring camera informs the deep space probe platform of the antenna driving abnormity.
Step 2: and the deep space probe platform receives the information that the driving of the drivable antenna is abnormal, and carries out safe processing on the drivable antenna. The deep space probe platform automatically implements antenna safety driving measures;
and step 3: the monitoring camera waits for 15min for a waiting period; the time is used for implementing safety measures on the deep space probe platform;
and 4, step 4: a surveillance camera recovery decision process;
and 5: the monitoring camera determines the driving state of the antenna; if the abnormality is judged again within 1min, turning to step 6; otherwise, turning to the step 1.3;
step 6: the surveillance camera exits the determination.
As shown in FIG. 3, the reflective surface of the drivable antenna is located in the field of view of the surveillance camera; and when the outline of the reflecting surface of the drivable antenna enters the safety boundary, judging that the driving of the antenna is abnormal.
In summary, the invention adopts the image acquisition, data processing and judgment method to monitor the on-orbit state of the antenna in real time, and autonomously implement the antenna safe driving treatment when the abnormality is judged, thereby realizing the on-orbit real-time monitoring and treatment of the antenna driving abnormality, improving the processing timeliness and autonomy of the antenna driving abnormality, and having no need of ground intervention. The method adopts the measures of combining continuous abnormity judgment, treatment waiting time and secondary judgment, avoids the risks of judging abnormity again in a fault treatment period, judging abnormity again when treatment fails and the like, and has strong practicability and fault tolerance. And the shot images are transmitted and stored in real time, and a channel for judging the fault condition again is reserved for ground operators.
Based on the requirements, in order to realize on-orbit safety state management of the large-aperture antenna of the deep space probe, the antenna driving process is imaged through the monitoring camera, the antenna profile is extracted and compared with a safety boundary, and whether the on-orbit driving state of the antenna is abnormal or not is judged. And after the abnormity is judged, the deep space probe platform automatically carries out antenna driving safety processing. By the method, the state of the large-aperture antenna of the deep space probe can be automatically monitored, safely monitored and abnormally treated in real time, and the safety of the large-aperture antenna is ensured.
The monitoring camera images the direction adjustment process of the drivable antenna, processes image data in real time, extracts the contour of the drivable antenna, compares the contour of the antenna with a safety boundary, judges that the driving state of the antenna is abnormal when the driving state exceeds the safety boundary, and informs the abnormal state information to the deep space detector platform; and responding the abnormal information by the deep space probe platform, and performing antenna safety treatment. Image data shot by a monitoring camera is transmitted to a deep space detector platform in real time for storage; the image data can be transmitted to the ground in a request mode, and the on-orbit processing result is confirmed through the processing of the ground information processing terminal. The invention utilizes image acquisition, data processing and judgment to monitor the on-orbit state of the antenna in real time, and autonomously implements antenna safe driving disposal when judging abnormality, thereby realizing the on-orbit real-time monitoring and disposal of the antenna driving abnormality.
The invention discloses a method and a system for monitoring an in-orbit safety state of a drivable large-aperture antenna. The shot image data can be transmitted to the ground in a video-on-demand mode, and the ground processing result and the on-orbit processing result are compared and confirmed. The method and the system for monitoring the on-orbit safety state of the drivable large-aperture antenna utilize an imaging mode to monitor the on-orbit safety of the antenna in real time and handle the abnormality of the antenna in real time on the orbit.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, units provided by the present invention as pure computer readable program code, the system and its various devices, modules, units provided by the present invention can be fully implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A drivable antenna in-orbit safety state monitoring system is characterized by comprising a monitoring camera, a drivable antenna and a deep space probe platform;
the orientation of the drivable antenna is adjustable;
the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; if the driving abnormity appearing on the drivable antenna is continuously judged to reach the preset times, the monitoring camera informs the deep space detector platform of the drivable antenna driving abnormity;
and after receiving the information that the drivable antenna is abnormally driven, the deep space probe platform carries out the safe processing of the drivable antenna.
2. The drivable antenna in-orbit safety condition monitoring system of claim 1, wherein the monitoring camera images the drivable antenna pointing adjustment process to obtain image data, performs image data processing in real time, and extracts a drivable antenna profile from the image data; a safety boundary which is compared with the contour of the drivable antenna is arranged in the monitoring camera, the contour of the drivable antenna is compared with the safety boundary, and if the contour of the drivable antenna exceeds the safety boundary, the drivable antenna is judged to be abnormally driven; after continuously judging that the abnormity reaches the preset times, stopping judging by the monitoring camera to enter a waiting period, and informing the deep space detector platform that the driving antenna is abnormal;
the deep space probe platform catcher can drive the antenna to drive abnormal information and then carry out safe processing on the drivable antenna;
the monitoring camera resumes judgment after the waiting period is over, and terminates the judgment if the drivable abnormality is judged again within a predetermined time.
3. The drivable antenna in-orbit safety-condition monitoring system as set forth in claim 2, further comprising a ground-based information processing terminal;
image data shot by the monitoring camera is transmitted to the deep space detector platform in real time;
the deep space probe platform stores the image data, and the deep space probe transmits the image data to the ground;
and the ground information processing terminal receives and processes the image data to realize ground visual interpretation confirmation of the on-orbit driving state of the drivable antenna.
4. The drivable antenna in-orbit safe-state monitoring system of claim 1, wherein the monitoring camera includes at least an imaging module, a data processing module and a power module;
the imaging module finishes image shooting and encoding to obtain image data;
the data processing module finishes the acquisition of state information to obtain state data and combines the image data and the state data;
and the power supply module completes power distribution management, receives power supply of the deep space detector platform and provides power distribution inside the monitoring camera.
5. The drivable antenna in-orbit safe-state monitoring system of claim 1, wherein the monitoring camera is connected to the deep space exploration platform by a cable;
the deep space detection platform provides power supply and control for the monitoring camera, receives state information and shot image information of the monitoring camera, and receives and responds to antenna driving abnormity information sent by the monitoring camera.
6. The drivable antenna in-orbit safe-state monitoring system of claim 1, wherein the monitoring camera performs image acquisition at a predetermined frequency.
7. The system for monitoring on-track safety state of drivable antenna as claimed in claim 1, wherein the monitoring camera stops judging and waits for a predetermined number of times after continuously judging that the abnormality reaches a predetermined number, and notifies the deep space probe platform that the drivable antenna is abnormally driven, and the deep space probe platform performs the safe driving of the drivable antenna when the monitoring camera enters the waiting period.
8. The drivable antenna in-orbit safe-state monitoring system of claim 1, wherein the monitoring camera includes a single-shot mode and a shot judgment mode; in the single shooting mode, the monitoring camera is used as a shooting camera; and when in the shooting judgment mode, the monitoring camera performs shooting, and performs extraction of the contour of the drivable antenna and comparison and judgment of the safety boundary in real time.
9. The drivable antenna in-track safety condition monitoring system of claim 1 in which the reflective surface of the drivable antenna is within the field of view of the monitoring camera when the monitoring camera and drivable antenna are mounted.
10. An in-orbit safe state monitoring method of an actuatable antenna, wherein the in-orbit safe state monitoring system of any one of claims 1 to 9 is applied, comprising the steps of:
step 1: adjusting the drivable antenna pointing direction; the monitoring camera processes the direction adjustment process of the drivable antenna and judges whether the drivable antenna is abnormal in driving; if the driving abnormity appearing on the drivable antenna is continuously judged to reach the preset times, the monitoring camera informs the deep space detector platform of the drivable antenna driving abnormity;
step 2: and the deep space probe platform receives the information that the drivable antenna is abnormally driven and carries out the safe processing of the drivable antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110955694.4A CN113741494B (en) | 2021-08-19 | 2021-08-19 | On-orbit safety state monitoring system and method for drivable antenna |
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| CN202110955694.4A CN113741494B (en) | 2021-08-19 | 2021-08-19 | On-orbit safety state monitoring system and method for drivable antenna |
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