A kind of imaging channel control method, device and equipment based on spaceborne instrument and storage medium

Abstract

The application discloses a kind of based on the imaging channel control method, device and equipment of spaceborne instrument and storage medium, it is applied to spaceborne instrument control architecture;Spaceborne instrument control architecture includes cooperative control module, remote sensing data transmission interface, several independent imaging channels and several remote sensing data switches, including: cooperative control module sends forward sequence signal, obtains forward working order;Normal time is sequentially started in order to each channel shooting and timing, stop after reaching preset exposure time, sequentially switch on corresponding switch transmission remote sensing data, complete after being turned off.If single channel is abnormal, then disable the channel, the rest channel continues shooting according to forward order;If at least two channels are abnormal, then generate reverse working order based on reverse sequence signal, control the shooting of non-abnormal channel and transmission data in order, to improve the efficiency of the imaging channel of spaceborne instrument control.

Description

Technical Field

[0001] This invention relates to the field of aerospace imaging data transmission and control technology, and in particular to an imaging channel control method, device, equipment and storage medium based on spaceborne instruments. Background Technology

[0002] Currently, the detection bands of the payload probes on Fengyun meteorological satellites are becoming increasingly diverse, and the number of imaging channels required is also increasing, but the data transmission resources on the satellites are limited.

[0003] As can be seen from the above, how to improve the efficiency of controlling the imaging channel of spaceborne instruments in the process of controlling the imaging channel of spaceborne instruments is an urgent problem to be solved. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a method, apparatus, device, and storage medium for controlling the imaging channel of a spaceborne instrument, which can improve the efficiency of controlling the imaging channel of the spaceborne instrument during the imaging channel control process. The specific solution is as follows:

[0005] Firstly, this application provides an imaging channel control method based on a spaceborne instrument, applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches, and the method includes:

[0006] The cooperative control module sends a forward sequence signal to each of the imaging channels to obtain a forward working order. When all the imaging channels are working normally, the cooperative control module controls each of the imaging channels to start shooting and start timing in sequence based on the forward working order.

[0007] After the timing duration of each imaging channel reaches the preset exposure duration, the shooting stops. The corresponding remote sensing data switches are turned on sequentially according to the forward working order. The captured remote sensing data is then transmitted through the remote sensing data transmission interface, and the remote sensing data switches are turned off after the transmission is completed.

[0008] If a single imaging channel malfunctions, the collaborative control module disables the malfunctioning imaging channel and controls the remaining imaging channels to continue shooting according to the forward working sequence.

[0009] If at least two of the imaging channels are abnormal, the collaborative control module generates a reverse working order based on the reverse sequence signal, and controls each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the captured remote sensing data.

[0010] Optionally, each imaging channel corresponds one-to-one with each remote sensing data switch; there is a bidirectional signal link between the collaborative control module and each imaging channel; there is a bidirectional signal link between every two adjacent imaging channels; the data output terminal of each imaging channel is connected to the input terminal of the remote sensing data switch; and the output terminal of each remote sensing data switch is connected to the remote sensing data transmission interface.

[0011] Optionally, the step of using the collaborative control module to send a forward sequence signal to each of the imaging channels to obtain a forward working order, and when all the imaging channels are working normally, using the collaborative control module and based on the forward working order to control each of the imaging channels to sequentially start shooting and timing, includes:

[0012] The collaborative control module sends a channel enable signal to each of the imaging channels, so that each imaging channel initializes based on the channel enable signal and enters a standby working state; all imaging channels are in a standby working state.

[0013] The collaborative control module is used to determine whether each imaging channel is in normal working condition. If each imaging channel is in normal working condition, the collaborative control module generates a forward sequential execution control signal and determines the forward working order of each imaging channel based on the forward sequential execution control signal. Then, based on the forward working order, a forward start shooting master control signal is sent to the current imaging channel that is first in the sequence.

[0014] The current imaging channel is used to start the shooting operation and start the timing based on the positive start shooting master control signal. Then, the current imaging channel generates the current adjacent channel positive start signal. The current imaging channel transmits the current adjacent channel positive start signal to the current adjacent channel so that the current imaging channel can start the shooting operation and start the timing based on the current adjacent channel positive start signal.

[0015] The next imaging channel adjacent to the current imaging channel is set as the new current imaging channel, and the process jumps back to the step of generating a positive start signal for the current adjacent channel using the current imaging channel, until the last imaging channel receives the positive start signal for the current adjacent channel.

[0016] Optionally, the step of stopping shooting after the timing duration of each imaging channel reaches the preset exposure duration, sequentially turning on the corresponding remote sensing data switches based on the forward working sequence, then transmitting the captured remote sensing data through the remote sensing data transmission interface, and turning off the remote sensing data switches after the transmission is completed includes:

[0017] The timing duration of each imaging channel is monitored in real time. When the timing duration of the current imaging channel reaches the preset exposure shooting duration, the exposure shooting operation is stopped, and a data gating signal is sent to the corresponding remote sensing data switch so that each remote sensing data switch can be turned on based on the data gating signal.

[0018] The remote sensing data captured by the current imaging channel is transmitted to the remote sensing data transmission interface through the remote sensing data switch, and the transmission time of the remote sensing data to the remote sensing data transmission interface is counted.

[0019] When the transmission duration reaches the preset data download duration, a data shutdown signal is sent to the remote sensing data switch using the current imaging channel, so as to disconnect the remote sensing data switch based on the data shutdown signal.

[0020] Optionally, after stopping the shooting after the timing duration of each imaging channel reaches the preset exposure duration, sequentially turning on the corresponding remote sensing data switches based on the forward working sequence, then transmitting the captured remote sensing data through the remote sensing data transmission interface, and turning off the remote sensing data switches after the transmission is completed, the method further includes:

[0021] Real-time monitoring of whether the collaborative control module sends a positive stop-shooting master control signal to the current imaging channel; the current imaging channel is the first imaging channel;

[0022] If the collaborative control module sends a positive stop shooting master control signal to the current imaging channel, it generates a current positive stop shooting signal using the current imaging channel, sends the current positive stop shooting signal to the next imaging channel, and then stops the shooting operation corresponding to the current imaging channel.

[0023] The next imaging channel is set as the new current imaging channel, and the process jumps back to the step of generating a current positive stop shooting signal using the current imaging channel, until all imaging channels have stopped shooting.

[0024] Optionally, if a single imaging channel malfunctions, the collaborative control module disables the malfunctioning imaging channel and controls the remaining imaging channels to continue capturing images according to the forward working sequence, including:

[0025] The collaborative control module is used to monitor the operational status of each imaging channel in real time.

[0026] If a single imaging channel is found to be malfunctioning and unable to complete the exposure shooting operation, the collaborative control module sends a channel prohibition signal to the imaging channel, and then controls the remaining imaging channels to continue shooting according to the forward working order. After the shooting is completed, the collaborative control module sends a stop shooting master control signal to stop the shooting operation of each imaging channel in sequence.

[0027] Optionally, if at least two of the imaging channels are abnormal, the collaborative control module generates a reverse working order based on the reverse sequence signal, and controls each imaging channel that has not experienced an abnormality to sequentially start shooting and timing based on the reverse working order, so as to transmit the captured remote sensing data, including:

[0028] If at least two of the imaging channels malfunction and the malfunction locations are concentrated at a preset preceding position in the forward working order, the collaborative control module sends a reverse execution control signal to each imaging channel that has not malfunctioned, so as to determine the reverse working order based on the reverse execution control signal.

[0029] The collaborative control module sends a reverse start-up shooting master control signal to the last imaging channel based on the reverse working order, so that the last imaging channel starts working and begins timing based on the reverse start-up shooting master control signal, and transmits the reverse start-up signal of the adjacent preceding imaging channel level by level, so that each imaging channel that has not experienced any abnormalities starts working and begins timing based on the reverse start-up signal of the adjacent channel; wherein, the imaging channel that has experienced an abnormality only performs timing operation and does not perform shooting operation or data transmission operation.

[0030] When the timing duration of the imaging channel without any abnormalities reaches the preset exposure shooting duration, the exposure shooting operation is stopped, and data selection signal, the captured remote sensing data and data shutdown signal are sent to the corresponding remote sensing data switch in the reverse working order.

[0031] The system monitors in real time whether the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel. If the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel, the system uses the last imaging channel to transmit the reverse stop signal of the adjacent preceding imaging channel in reverse working order until all imaging channels stop shooting based on the reverse stop signal of the adjacent channel and return to the working standby state.

[0032] If the collaborative control module does not send a reverse stop shooting master control signal to the last imaging channel, the reverse shooting operation process will continue.

[0033] Secondly, this application provides an imaging channel control device based on a spaceborne instrument, applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches, and the device includes:

[0034] The forward working sequence generation module is used to send a forward sequence signal to each of the imaging channels using the collaborative control module to obtain a forward working sequence. When all of the imaging channels are working normally, the collaborative control module controls each of the imaging channels to start shooting and timing in sequence based on the forward working sequence.

[0035] The remote sensing data transmission module is used to stop shooting after the timing duration of each imaging channel reaches the preset exposure duration, sequentially turn on the corresponding remote sensing data switches based on the forward working order, then transmit the captured remote sensing data through the remote sensing data transmission interface, and turn off the remote sensing data switches after the transmission is completed.

[0036] An imaging channel disable module is used to disable the abnormal imaging channel by means of the cooperative control module if a single imaging channel is abnormal, and to control the remaining imaging channels to continue shooting according to the forward working order.

[0037] The reverse working order generation module is used to generate a reverse working order based on the reverse sequence signal using the cooperative control module if at least two of the imaging channels are abnormal, and to control each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the captured remote sensing data.

[0038] Thirdly, this application provides an electronic device, comprising:

[0039] Memory, used to store computer programs;

[0040] A processor is used to execute the computer program to implement the aforementioned imaging channel control method based on spaceborne instruments.

[0041] Fourthly, this application provides a computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the aforementioned imaging channel control method based on a spaceborne instrument.

[0042] As can be seen from the above, before performing imaging channel control based on spaceborne instruments, this application needs to use a collaborative control module to send forward sequence signals to each imaging channel to obtain a forward working sequence. When all imaging channels are working normally, the collaborative control module controls each imaging channel to start shooting and timing sequentially based on the forward working sequence. After the timing duration of each imaging channel reaches the preset exposure duration, shooting stops, and the corresponding remote sensing data switches are turned on sequentially based on the forward working sequence. Then, the captured remote sensing data is transmitted through the remote sensing data transmission interface, and the remote sensing data switches are turned off after the transmission is completed. If a single imaging channel is abnormal, the collaborative control module disables the abnormal imaging channel and controls the remaining imaging channels to continue shooting according to the forward working sequence. If several imaging channels are abnormal, the collaborative control module generates a reverse working sequence based on a reverse sequence signal, and controls each imaging channel that is not abnormal to start shooting and timing sequentially based on the reverse working sequence to transmit the captured remote sensing data.

[0043] Therefore, this application first requires the use of a collaborative control module to send forward sequence signals to each imaging channel to obtain a forward working sequence. When all imaging channels are working normally, the collaborative control module, based on the forward working sequence, controls each imaging channel to sequentially start and time its capture. Secondly, after each imaging channel's timeout reaches the preset exposure time, capturing stops, and the corresponding remote sensing data switches are sequentially activated based on the forward working sequence. The captured remote sensing data is then transmitted through the remote sensing data transmission interface, and the remote sensing data switches are deactivated after transmission. Thirdly, if a single imaging channel malfunctions, the collaborative control module disables the malfunctioning channel and controls the remaining imaging channels to continue capturing according to the forward working sequence. Finally, if several imaging channels malfunction, the collaborative control module generates a reverse working sequence based on a reverse sequence signal, and based on this reverse working sequence, sequentially controls the imaging channels that are not malfunctioning to start and time their captures, thereby transmitting the captured remote sensing data. This improves the efficiency of controlling the imaging channels of spaceborne instruments during the imaging channel control process, thereby reducing the pressure of satellite data transmission resource constraints, improving the reliability of scientific instruments in orbit, and enhancing the level of aerospace engineering. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0045] Figure 1 This is a flowchart of an imaging channel control method based on a spaceborne instrument disclosed in this application;

[0046] Figure 2 This is a flowchart of a specific imaging channel control method based on a spaceborne instrument disclosed in this application;

[0047] Figure 3 This is a timing diagram of a specific imaging channel control method based on a spaceborne instrument disclosed in this application;

[0048] Figure 4 This is a magnified schematic diagram of a specific independent multi-channel exposure shooting synchronization disclosed in this application;

[0049] Figure 5 This application discloses a specific schematic diagram of a spaceborne instrument control system applied to an independent two-channel single data transmission path.

[0050] Figure 6 This is a timing diagram disclosed in this application for the control of a spaceborne instrument with an independent two-channel single data transmission path;

[0051] Figure 7 This is a partially enlarged schematic diagram of a specific independent two-channel exposure shooting synchronization disclosed in this application;

[0052] Figure 8 This is a schematic diagram of an imaging channel control device based on a spaceborne instrument disclosed in this application;

[0053] Figure 9 This is a structural diagram of an electronic device disclosed in this application. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Currently, the detection bands for the payload probes on Fengyun meteorological satellites are becoming increasingly diverse, requiring more and more imaging channels, but the data transmission resources on the satellites are limited. Therefore, this application provides an imaging channel control method based on onboard instruments, which improves the efficiency of controlling the imaging channels of onboard instruments during the process of onboard instrument-based imaging channel control.

[0056] See Figure 1As shown, this invention discloses an imaging channel control method based on a spaceborne instrument, applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches; the method includes:

[0057] Step S11: Use the collaborative control module to send a forward sequence signal to each of the imaging channels to obtain a forward working order. When all the imaging channels are working normally, use the collaborative control module and the forward working order to control each of the imaging channels to start shooting and start timing in sequence.

[0058] In this embodiment, Figure 2 This is a flowchart of an imaging channel control method based on spaceborne instruments, and Figure 3 The following is a timing diagram of an imaging channel control method based on a spaceborne instrument. The embodiments of this application include: an imaging and remote sensing data transmission collaborative control module (1), a remote sensing data transmission interface (2), imaging channel 1 (3_1), imaging channel 2 (3_2), ..., imaging channel n-1 (3_n-1), imaging channel n (3_n), a channel 1 remote sensing data switch (4_1), a channel 2 remote sensing data switch (4_2), ..., a channel n-1 remote sensing data switch (4_n-1), and a channel n remote sensing data switch (4_n).

[0059] The working principle of the above control structure is as follows: The imaging and remote sensing data transmission collaborative control module (1) sends the channel 1 start shooting master control signal, stop shooting master control signal, enable signal, prohibit signal and execution sequence control signal to the imaging channel 1 (3_1); the imaging and remote sensing data transmission collaborative control module (1) sends the enable signal, prohibit signal and execution sequence control signal to the imaging channel 2 (3_1); the imaging and remote sensing data transmission collaborative control module (1) sends the enable signal, prohibit signal and execution sequence control signal to the imaging channel n-1 (3_n-1); the imaging and remote sensing data transmission collaborative control module (1) sends the channel n start shooting master control signal, stop shooting master control signal, enable signal, prohibit signal and execution sequence control signal to the imaging channel n (3_n).

[0060] Furthermore, imaging channel 1 (3_1) sends a 12 start shooting signal and a 12 stop shooting signal to imaging channel 2 (3_1), imaging channel 2 (3_2) sends a 23 start shooting signal and a 23 stop shooting signal to imaging channel 3 (3_3), imaging channel n-2 (3_n-2) sends a (n-2)(n-1) start shooting signal and a (n-2)(n-1) stop shooting signal to imaging channel n-1 (3_n-1), and imaging channel n-1 ( 3_n-1) sends a (n-1)n start shooting signal and a (n-1)n stop shooting signal to imaging channel n(3_n), imaging channel n(3_n) sends a n(n-1) start shooting signal and a n(n-1) stop shooting signal to imaging channel n-1(3_n-1), and imaging channel n-1(3_n-1) sends a (n-1)(n-2) start shooting signal and a (n-1)(n-2) stop shooting signal to imaging channel (3_n-2). Imaging channel 3 (3_3) sends a 32 start shooting signal and a 32 stop shooting signal to imaging channel 2 (3_2). Imaging channel 2 (3_2) sends a 21 start shooting signal and a 21 stop shooting signal to imaging channel 1 (3_1). Imaging channel 1 (3_1) sends a channel 1 remote sensing data selection / disable signal and channel 1 remote sensing data to channel 1 remote sensing data switch (4_1). Imaging channel 2 (3_2) sends a channel 2 remote sensing data selection / disable signal and channel 2 remote sensing data to channel 2 remote sensing data switch (4_2). Imaging channel n-1 (3_n-1) sends a channel n-1 remote sensing data selection / disable signal and channel n-1 remote sensing data to channel n-1 remote sensing data switch (4_n). Imaging channel n (3_n) sends a channel n remote sensing data selection / disable signal and channel n remote sensing data to channel n remote sensing data switch (4_n). This enables the switching and downlinking of remote sensing data from multiple independent channels by a single data transmission channel.

[0061] It is worth mentioning that each imaging channel corresponds one-to-one with each remote sensing data switch; there is a bidirectional signal link between the collaborative control module and each imaging channel; there is a bidirectional signal link between every two adjacent imaging channels; the data output terminal of each imaging channel is connected to the input terminal of the remote sensing data switch; and the output terminal of each remote sensing data switch is connected to the remote sensing data transmission interface.

[0062] First, in step 1, the imaging and remote sensing data transmission collaborative control module (1) can send a channel 1 enable signal to imaging channel 1 (3_1), send a channel 2 enable signal to imaging channel 2 (3_1), send a channel n-1 enable signal to imaging channel n-1 (3_n-1), send a channel n enable signal to imaging channel n (3_n), and then proceed to step 2.

[0063] Step 2: The imaging and remote sensing data transmission collaborative control module (1) sends a sequential execution control signal to imaging channel 1 (3_1), the imaging and remote sensing data transmission collaborative control module (1) sends a channel 2 sequential execution control signal to imaging channel 2 (3_2), the imaging and remote sensing data transmission collaborative control module (1) sends a channel n-1 sequential execution control signal to imaging channel n-1 (3_n-1), the imaging and remote sensing data transmission collaborative control module (1) sends a channel n sequential execution control signal to imaging channel n (3_n), and then proceeds to step 3.

[0064] Step 3: The imaging and remote sensing data transmission collaborative control module (1) sends the channel 1 start shooting master control signal to imaging channel 1 (3_1) and proceeds to step 4.

[0065] Step 4: Imaging channel 1 (3_1) sends a "12" start shooting signal to imaging channel 2 (3_2), and imaging channel 2 (3_2) starts timing. The timing of imaging channel 2 (3_2) starts timing later than the timing of imaging channel 1 (3_1) by ΔTbg12. Imaging channel 2 (3_2) sends a "23" start shooting signal to imaging channel 3 (3_3), and imaging channel 3 (3_3) starts timing. The timing of imaging channel 3 (3_3) starts timing later than the timing of imaging channel 2 (3_2) by ΔTbg23. Imaging channel n-2 (3_n-2) sends a "(n-2)(n" signal to imaging channel n-1 (3_n-1)). -1) Start shooting signal, imaging channel n-1 (3_n-1) starts timing. The timing of imaging channel n-1 (3_n-1) starts ΔTbg(n-2)(n-1) later than the timing of imaging channel n-2 (3_n-2). Imaging channel n-1 (3_n-1) sends (n-1)n start shooting signal to imaging channel n (3_n). Imaging channel n (3_n) starts timing. The timing of imaging channel n (3_n) starts ΔTbg(n-1)n later than the timing of imaging channel n-1 (3_n-1). Proceed to step 5. And a locally enlarged schematic diagram of the independent multi-channel exposure shooting synchronization is shown below. Figure 4 As shown.

[0066] Specifically, the collaborative control module sends forward sequence signals to each imaging channel to obtain the forward working order. When all imaging channels are operating normally, the collaborative control module, based on the forward working order, controls each imaging channel to sequentially initiate and time its capture. This can include: sending channel enable signals to each imaging channel via the collaborative control module, so that each imaging channel initializes and enters a standby working state based on the channel enable signals; all imaging channels are in a standby working state; the collaborative control module determines whether each imaging channel is in a normal working state; if all imaging channels are in a normal working state, the collaborative control module generates a forward sequence execution control signal, and determines the forward sequence of each imaging channel based on the forward sequence execution control signal. The system first determines the working order, then sends a positive start shooting control signal to the current imaging channel that is first in the sequence based on the positive working order; it then starts the shooting operation and begins timing using the current imaging channel and based on the positive start shooting control signal; it then generates a positive start signal for the current adjacent channel using the current imaging channel, and transmits the positive start signal for the current adjacent channel to the current adjacent channel so that the current imaging channel can start the shooting operation and begin timing based on the positive start signal for the current adjacent channel; it then sets the next imaging channel adjacent to the current imaging channel as the new current imaging channel and jumps back to the step of generating the positive start signal for the current adjacent channel using the current imaging channel, until the last imaging channel receives the positive start signal for the current adjacent channel.

[0067] Step S12: After the timing duration of each imaging channel reaches the preset exposure duration, stop shooting, turn on the corresponding remote sensing data switches in sequence according to the forward working order, then transmit the captured remote sensing data through the remote sensing data transmission interface, and turn off the remote sensing data switches after the transmission is completed.

[0068] In this embodiment, step 5 is: when the imaging channel 1 (3_1) reaches the specified exposure shooting time, proceed to step 6. If the specified exposure shooting time has not been reached, continue the exposure shooting operation. Step 6 is: the imaging channel 1 (3_1) sends a channel 1 remote sensing data selection signal to the channel 1 remote sensing data switch (4_1). The remote sensing data of the imaging channel 1 (3_1) will be transmitted down through the remote sensing data transmission interface (2). When the remote sensing data transmission completion time of the imaging channel 1 (3_1) is reached, the imaging channel 1 (3_1) sends a channel 1 remote sensing data shutdown signal to the channel 1 remote sensing data switch (4_1) and proceeds to step 7. Otherwise, the remote sensing data of the imaging channel 1 (3_1) will continue to be transmitted down.

[0069] Step 7: Imaging channel 2 (3_2) sends a channel 2 remote sensing data strobe signal to the channel 2 remote sensing data switch (4_2). The remote sensing data of imaging channel 2 (3_2) will be transmitted down through the remote sensing data transmission interface (2). When the down transmission time of the remote sensing data of imaging channel 2 (3_2) is reached, imaging channel 2 (3_2) sends a channel 2 remote sensing data cut-off signal to the channel 2 remote sensing data switch (4_2) and proceeds to step 8. Otherwise, the remote sensing data of imaging channel 2 (3_2) will continue to be transmitted down.

[0070] Step 8: Imaging channel n-1 (3_n-1) sends a channel n-1 remote sensing data strobe signal to channel n-1 remote sensing data switch (4_n-1). The remote sensing data of imaging channel n-1 (3_n-1) will be transmitted down through the remote sensing data transmission interface (2). When the down transmission completion time of imaging channel n-1 (3_n-1) remote sensing data is reached, imaging channel n-1 (3_n-1) sends a channel n-1 remote sensing data cut-off signal to channel n-1 remote sensing data switch (4_n-1) and proceeds to step 9. Otherwise, the remote sensing data of imaging channel n-1 (3_n-1) will continue to be transmitted down.

[0071] Step 9: Imaging channel n (3_n) sends a channel n remote sensing data strobe signal to channel n remote sensing data switch (4_n). The remote sensing data of imaging channel n (3_n) will be transmitted down through the remote sensing data transmission interface (2). When the down transmission completion time of imaging channel n (3_n) is reached, imaging channel n (3_n) sends a channel n remote sensing data cut-off signal to channel n remote sensing data switch (4_n). Imaging channel n (3_n) stops timing and proceeds to step 10. Otherwise, the remote sensing data of imaging channel n (3_n) continues to be transmitted down.

[0072] Specifically, after the timing duration of each imaging channel reaches the preset exposure duration, the imaging stops. The corresponding remote sensing data switches are then sequentially activated based on a forward working order. The captured remote sensing data is then transmitted through the remote sensing data transmission interface. After transmission is complete, the remote sensing data switches are deactivated. This process can include: real-time monitoring of the timing duration of each imaging channel; stopping the exposure and imaging operation when the timing duration of the current imaging channel reaches the preset exposure and imaging duration; sending a data gating signal to the corresponding remote sensing data switch so that each remote sensing data switch can be activated based on the data gating signal; transmitting the captured remote sensing data through the remote sensing data switch to the remote sensing data transmission interface using the current imaging channel; and calculating the transmission time of the remote sensing data to the remote sensing data transmission interface; when the transmission time reaches the preset data download time, sending a data deactivation signal to the remote sensing data switch using the current imaging channel; and deactivating the remote sensing data switch based on the data deactivation signal.

[0073] Step 10: If the imaging and remote sensing data transmission collaborative control module (1) sends a channel 1 stop shooting master control signal to imaging channel 1 (3_1), imaging channel 1 (3_1) sends a 12 stop shooting signal to imaging channel 2 (3_2), imaging channel 2 (3_2) sends a 23 stop shooting signal to imaging channel 3 (3_3), imaging channel n-2 (3_n-2) sends a (n-2)(n-1) stop shooting signal to imaging channel n-1 (3_n-1), and imaging channel n-1 (3_n-1) sends a (n-1)n stop shooting signal to imaging channel n (3_n), proceed to step 11; otherwise, proceed to step 4.

[0074] Specifically, after the timing duration of each imaging channel reaches the preset exposure duration, the imaging stops. The corresponding remote sensing data switches are then sequentially activated based on the forward operating sequence. The captured remote sensing data is then transmitted through the remote sensing data transmission interface. After the transmission is complete and the remote sensing data switches are turned off, the process may further include: real-time monitoring of whether the collaborative control module sends a forward stop-imaging master control signal to the current imaging channel; the current imaging channel is the first imaging channel; if the collaborative control module sends a forward stop-imaging master control signal to the current imaging channel, a current forward stop-imaging signal is generated using the current imaging channel, and this signal is sent to the subsequent second-ranking imaging channels, then the imaging operation corresponding to the current imaging channel is stopped; the subsequent second-ranking imaging channel is set as the new current imaging channel, and the process jumps back to the step of generating a current forward stop-imaging signal using the current imaging channel, until all imaging channels have stopped imaging.

[0075] Step S13: If a single imaging channel is abnormal, the cooperative control module is used to disable the abnormal imaging channel and control the remaining imaging channels to continue shooting according to the forward working order.

[0076] In this embodiment, step 11 is: if an imaging channel malfunctions and cannot complete the exposure shooting function, the imaging and remote sensing data transmission collaborative control module (1) sends a channel prohibition signal to the imaging channel and proceeds to step 12; otherwise, proceeds to step 3.

[0077] Specifically, if a single imaging channel malfunctions, the collaborative control module disables the malfunctioning imaging channel and controls the remaining imaging channels to continue shooting in the forward working order. This can include: using the collaborative control module to monitor the working status of each imaging channel in real time; if a single working status indicates that an imaging channel is malfunctioning and cannot complete the exposure shooting operation, the collaborative control module sends a channel prohibition signal to the imaging channel, then controls the remaining imaging channels to continue shooting in the forward working order, and after shooting is completed, sends a stop shooting master control signal based on the collaborative control module to stop the shooting operation of each imaging channel in sequence.

[0078] Step S14: If at least two of the imaging channels are abnormal, the collaborative control module generates a reverse working order based on the reverse sequence signal, and controls each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the captured remote sensing data.

[0079] In this embodiment, step 12 is: when multiple imaging channels malfunction and cannot complete the exposure shooting function, if most of the abnormal channel numbers are in the small number part, the imaging and remote sensing data transmission collaborative control module (1) sends reverse execution control signals to imaging channel 1 (3_1), imaging channel 2 (3_2), imaging channel n-1 (3_n-1), and imaging channel n (3_n) to enter step 13; otherwise, enter step 3.

[0080] Step 13: The imaging and remote sensing data transmission collaborative control module (1) sends the channel n start shooting master control signal to the imaging channel n (3_n), the imaging channel n (3_n) starts timing, and enters step 14.

[0081] Step 14: Imaging channel n (3_n) sends an n (n-1) start shooting signal to imaging channel n-1 (3_n-1), imaging channel n-1 (3_n-1) starts timing, imaging channel n-1 (3_n-1) sends (n-1)(n-2) start shooting signal to imaging channel n-2 (3_n-2), imaging channel n-2 (3_n-2) starts timing, imaging channel 3 (3_3) sends a 32 start shooting signal to imaging channel 2 (3_2), imaging channel 2 (3_2) starts timing, imaging channel 2 (3_2) sends a 21 start shooting signal to imaging channel 1 (3_1), imaging channel 1 (3_1) starts timing, proceed to step 15.

[0082] Step 15: When the imaging channel n (3_n) reaches the specified exposure shooting time, proceed to step 16. If the specified exposure shooting time has not been reached, continue exposure shooting.

[0083] Step 16: Imaging channel n (3_n) sends a channel n remote sensing data strobe signal to channel n remote sensing data switch (4_n). The remote sensing data of imaging channel n (3_n) will be transmitted down through the remote sensing data transmission interface (2). When the down transmission completion time of imaging channel n (3_n) remote sensing data is reached, imaging channel n (3_n) sends a channel n remote sensing data cut-off signal to channel n remote sensing data switch (4_n) and proceeds to step 17. Otherwise, the remote sensing data of imaging channel n (3_n) will continue to be transmitted down.

[0084] Step 17: Imaging channel n-1 (3_n-1) sends a channel n-1 remote sensing data strobe signal to channel n-1 remote sensing data switch (4_n-1). The remote sensing data of imaging channel n-1 (3_n-1) will be transmitted down through the remote sensing data transmission interface (2). When the down transmission completion time of imaging channel n-1 (3_n-1) remote sensing data is reached, imaging channel n-1 (3_n-1) sends a channel n-1 remote sensing data cut-off signal to channel n-1 remote sensing data switch (4_n-1) and proceeds to step 18. Otherwise, the remote sensing data of imaging channel n-1 (3_n-1) will continue to be transmitted down.

[0085] Step 18: Imaging channel 2 (3_2) sends a channel 2 remote sensing data strobe signal to the channel 2 remote sensing data switch (4_2). The remote sensing data of imaging channel 2 (3_2) will be transmitted down through the remote sensing data transmission interface (2). When the transmission time of the remote sensing data of imaging channel 2 (3_2) is reached, imaging channel 2 (3_2) sends a channel 2 remote sensing data cut-off signal to the channel 2 remote sensing data switch (4_2) and proceeds to step 19. Otherwise, the remote sensing data of imaging channel 2 (3_2) will continue to be transmitted down.

[0086] Step 19: Imaging channel 1 (3_1) sends a channel 1 remote sensing data strobe signal to the channel 1 remote sensing data switch (4_1). The remote sensing data of imaging channel 1 (3_1) will be transmitted down through the remote sensing data transmission interface (2). When the time for the transmission of remote sensing data of imaging channel 1 (3_1) to be completed is reached, imaging channel 1 (3_1) sends a channel 1 remote sensing data shutdown signal to the channel 1 remote sensing data switch (4_1). Imaging channel 1 (3_1) stops timing and proceeds to step 20. Otherwise, the remote sensing data of imaging channel 1 (3_1) will continue to be transmitted down.

[0087] Step 20: If the imaging and remote sensing data transmission collaborative control module (1) sends a channel n stop shooting control signal to imaging channel n (3_n), imaging channel n (3_n) sends n (n-1) stop shooting signal to imaging channel n-1 (3_n-1), imaging channel n-1 (3_n-1) sends (n-1)(n-2) stop shooting signal to imaging channel n-2 (3_n-2), imaging channel 3 (3_3) sends 32 stop shooting signal to imaging channel 2 (3_2), and imaging channel 2 (3_2) sends 21 stop shooting signal to imaging channel 1 (3_1), proceed to step 13; otherwise, proceed to step 14.

[0088] Specifically, if at least two imaging channels malfunction, the collaborative control module generates a reverse working order based on the reverse sequence signal. Based on this reverse working order, it sequentially controls the imaging channels that have not malfunctioned to begin shooting and timing, thereby transmitting the acquired remote sensing data. This can include: if at least two imaging channels malfunction and the malfunction locations are concentrated at a preset preceding position in the forward working order, the collaborative control module sends a reverse execution control signal to each imaging channel that has not malfunctioned, determining the reverse working order based on the reverse execution control signal; the collaborative control module also sends a reverse start shooting master control signal to the last imaging channel based on the reverse working order, so that the last imaging channel starts working and timing based on the reverse start shooting master control signal, and progressively transmits the adjacent channel reverse start signals to the adjacent preceding imaging channels, so that each imaging channel that has not malfunctioned can proceed based on the adjacent channel reverse start signals. The process begins and timing starts. Imaging channels experiencing an anomaly only perform timing operations and do not perform image capture or data transmission. When the timing duration of an imaging channel without an anomaly reaches the preset exposure capture duration, the exposure capture operation stops, and data strobe signals, captured remote sensing data, and data shutdown signals are sent sequentially to the corresponding remote sensing data switches in reverse order. The system monitors in real-time whether the collaborative control module sends a reverse stop capture master control signal to the last imaging channel. If the collaborative control module does send a reverse stop capture master control signal to the last imaging channel, the reverse stop signals of adjacent channels are transmitted step-by-step from the last imaging channel to the preceding adjacent imaging channels in reverse order until all imaging channels stop capturing operations based on the adjacent channel reverse stop signals and return to standby status. If the collaborative control module does not send a reverse stop capture master control signal to the last imaging channel, the reverse capture operation process continues.

[0089] In this embodiment, Figure 5 This is a schematic diagram of a spaceborne instrument control method applied to an independent two-channel single data transmission path, and Figure 6 This is a timing diagram for a spaceborne instrument control method applied to an independent two-channel single data transmission path. Figure 7A magnified view showing the synchronized exposure and imaging for two independent channels: Imaging and remote sensing data transmission coordinated control module 1, remote sensing data transmission interface 2, imaging channel 1 3_1, imaging channel 2 3_2, channel 1 remote sensing data switch 4_1, and channel 2 remote sensing data switch 4_2. The imaging and remote sensing data transmission coordinated control module 1 is located in a control box inside the satellite cabin. Remote sensing data transmission interface 2, imaging channel 1 3_1, imaging channel 2 3_2, channel 1 remote sensing data switch 4_1, and channel 2 remote sensing data switch 4_2 are located on the probe head outside the satellite cabin. The internal electrical control box communicates with the probe head via cables. Imaging channel 1 3_1 and channel 1 remote sensing data switch 4_1 are on the first circuit board. Imaging channel 2... 3_2 and channel 2 remote sensing data switch 4_2 are on the second circuit board. The first circuit board is connected to the second circuit board through the inter-board connector. The inter-board connector is connected to the only remote sensing data transmission interface 2 of the probe head. The two circuit boards are identical, and each circuit board has a XILINX XQ4VSX55 ​​chip for program control. The programs on the two circuit boards are also identical.

[0090] In one specific implementation, the specific steps corresponding to the embodiments of this application are as follows:

[0091] Step 1: The imaging and remote sensing data transmission collaborative control module 1 sends a channel 1 enable signal to imaging channel 1 3_1 and sends a channel 2 enable signal to imaging channel 2 3_1, then proceeds to step 2.

[0092] Step 2: The imaging and remote sensing data transmission collaborative control module 1 sends a sequential execution control signal to imaging channel 1 3_1, and sends a channel 2 sequential execution control signal to imaging channel 2 3_2, then proceeds to step 3.

[0093] Step 3: The imaging and remote sensing data transmission collaborative control module 1 sends the channel 1 start shooting master control signal to imaging channel 1 3_1, and imaging channel 1 3_1 starts timing, proceeding to step 4.

[0094] Step 4: Imaging channel 1 3_1 sends a "start shooting" signal to imaging channel 2 3_2. Imaging channel 2 3_2 starts timing. The timing of imaging channel 2 3_2 starts timing ΔTbg12 1 millisecond later than the timing of imaging channel 1 3_1. Proceed to step 5.

[0095] Step 5: When imaging channel 1 3_1 reaches the specified exposure shooting time of 2 seconds, i.e. the 2nd second, proceed to step 6. If the specified exposure shooting time has not been reached, continue exposure shooting.

[0096] Step 6: Imaging channel 1 3_1 sends a channel 1 remote sensing data strobe signal to channel 1 remote sensing data switch 4_1. The remote sensing data of imaging channel 1 3_1 will be transmitted down through remote sensing data transmission interface 2. When the transmission completion time of imaging channel 1 3_1 is 5 seconds, that is, at the 7th second, imaging channel 1 3_1 sends a channel 1 remote sensing data cut-off signal to channel 1 remote sensing data switch 4_1, and proceeds to step 7. Otherwise, the transmission of remote sensing data of imaging channel 1 3_1 continues.

[0097] Step 7: Imaging channel 2 3_2 sends a channel 2 remote sensing data strobe signal to channel 2 remote sensing data switch 4_2. The remote sensing data of imaging channel 2 3_2 will be transmitted down through remote sensing data transmission interface 2. When the transmission completion time of imaging channel 2 3_2 is 5 seconds, that is, at the 12th second, imaging channel 2 3_2 sends a channel 2 remote sensing data cut-off signal to channel 2 remote sensing data switch 4_2. The timing of imaging channel 2 3_2 stops, and proceed to step 8. Otherwise, the transmission of remote sensing data of imaging channel 2 3_2 continues.

[0098] Step 8: If the imaging and remote sensing data transmission collaborative control module 1 sends a channel 1 stop shooting master control signal to imaging channel 1 3_1, and imaging channel 1 3_1 sends a 12 stop shooting signal to imaging channel 2 3_2, proceed to step 9; otherwise, proceed to step 4.

[0099] Step 9: If imaging channel 1 3_1 malfunctions and cannot complete the exposure shooting function, the imaging and remote sensing data transmission collaborative control module 1 sends a channel prohibition signal to the imaging channel and proceeds to step 10; otherwise, proceeds to step 3.

[0100] Step 10: The imaging and remote sensing data transmission collaborative control module 1 sends reverse execution control signals to imaging channel 1 3_1 and imaging channel 2 3_2, and proceeds to step 11.

[0101] Step 11: The imaging and remote sensing data transmission collaborative control module 1 sends the channel 2 start shooting master control signal to the imaging channel 2 3_2, the imaging channel 2 3_2 starts timing, and proceeds to step 12.

[0102] Step 12: Imaging channel 2 3_2 sends a 21 start shooting signal to imaging channel 1 3_1. The timing of imaging channel 1 3_1 starting is ΔTbg21 1 milliseconds later than the timing of imaging channel 2 3_2. Imaging channel 1 3_1 is in a disabled state, only timing is performed, and no exposure shooting or data transmission is performed. Proceed to step 13.

[0103] Step 13: When imaging channel 2 3_2 reaches the specified exposure shooting time of 2 seconds, proceed to step 14. If the specified exposure shooting time has not been reached, continue exposure shooting.

[0104] Step 14: Imaging channel 2 3_2 sends a channel 2 remote sensing data strobe signal to channel 2 remote sensing data switch 4_2. The remote sensing data of imaging channel 2 3_2 will be transmitted down through remote sensing data transmission interface 2. When the transmission completion time of imaging channel 2 3_2 remote sensing data is 5 seconds, that is, at the 7th second, imaging channel 2 3_2 sends a channel 2 remote sensing data cut-off signal to channel 2 remote sensing data switch 4_2, and proceeds to step 15. Otherwise, the transmission of imaging channel 2 3_2 remote sensing data continues.

[0105] Step 15: When the timing of the remote sensing data in imaging channel 1 3_1 reaches the 12th second, the timing of imaging channel 1 3_1 stops, and proceed to step 16.

[0106] Step 16: If the imaging and remote sensing data transmission collaborative control module 1 sends a channel 2 stop shooting master control signal to imaging channel 2 3_2, and imaging channel 2 3_2 sends a 21 stop shooting signal to imaging channel 1 3_1, proceed to step 11; otherwise, proceed to step 12.

[0107] In this way, the embodiments of this application realize multiple channels using a single data transmission path, thereby reducing the pressure of satellite data transmission resource shortage. Furthermore, by adopting a master-slave mode and periodic synchronous timing method, the functions of independent management of parameters of each channel, collaborative imaging, and data downlink are realized. The master-slave switching mode and the function of enabling and disabling channels are designed to improve the reliability of scientific instruments in orbit. At the same time, the embodiments of this application can flexibly and conveniently increase or decrease imaging channels according to the different needs of different users for different numbers of channels, thereby improving the level of aerospace engineering.

[0108] As can be seen from the above, the embodiments of this application first require the use of a collaborative control module to send a forward sequence signal to each imaging channel to obtain a forward working sequence. When all imaging channels are working normally, the collaborative control module controls each imaging channel to start shooting and timing sequentially based on the forward working sequence. Second, shooting stops after the timing duration of each imaging channel reaches the preset exposure duration, and the corresponding remote sensing data switches are turned on sequentially based on the forward working sequence. Then, the captured remote sensing data is transmitted through the remote sensing data transmission interface, and the remote sensing data switches are turned off after the transmission is completed. Furthermore, if a single imaging channel is abnormal, the collaborative control module disables the abnormal imaging channel and controls the remaining imaging channels to continue shooting according to the forward working sequence. Finally, if several imaging channels are abnormal, the collaborative control module generates a reverse working sequence based on a reverse sequence signal, and controls each imaging channel that is not abnormal to start shooting and timing sequentially based on the reverse working sequence to transmit the captured remote sensing data. This improves the efficiency of controlling the imaging channels of spaceborne instruments during the imaging channel control process, thereby reducing the pressure of satellite data transmission resource constraints, improving the reliability of scientific instruments in orbit, and enhancing the level of aerospace engineering.

[0109] Accordingly, see Figure 8 As shown, this application also provides an imaging channel control device based on a spaceborne instrument, applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches, and the device includes:

[0110] The forward working sequence generation module 11 is used to send a forward sequence signal to each of the imaging channels using the collaborative control module to obtain a forward working sequence, and when all of the imaging channels are working normally, the collaborative control module controls each of the imaging channels to start shooting and timing in sequence based on the forward working sequence.

[0111] The remote sensing data transmission module 12 is used to stop shooting after the timing duration of each imaging channel reaches the preset exposure duration, turn on the corresponding remote sensing data switches in sequence according to the forward working order, then transmit the captured remote sensing data through the remote sensing data transmission interface, and turn off the remote sensing data switches after the transmission is completed.

[0112] The imaging channel disable module 13 is used to disable the abnormal imaging channel by means of the cooperative control module if there is an abnormality in a single imaging channel, and control the remaining imaging channels to continue shooting according to the forward working order.

[0113] The reverse working order generation module 14 is used to generate a reverse working order based on the reverse sequence signal using the cooperative control module if at least two of the imaging channels are abnormal, and to control each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the remote sensing data obtained by shooting.

[0114] In some specific embodiments, the forward work sequence generation module 11 may specifically include:

[0115] The standby working state entry unit is used to send channel enable signals to each of the imaging channels using the cooperative control module, so that each imaging channel can be initialized based on the channel enable signals and enter the standby working state; all imaging channels are in the standby working state.

[0116] A forward sequential execution control signal generation unit is used to determine whether each imaging channel is in normal working condition using the cooperative control module. If each imaging channel is in normal working condition, the cooperative control module generates a forward sequential execution control signal, determines the forward working order of each imaging channel based on the forward sequential execution control signal, and then sends a forward start shooting master control signal to the current imaging channel that is first in the sequence based on the forward working order.

[0117] The current adjacent channel positive start signal generation unit is used to start the shooting operation and start the timing based on the current imaging channel and the positive start shooting master control signal, and then use the current imaging channel to generate the current adjacent channel positive start signal. The current imaging channel transmits the current adjacent channel positive start signal to the current adjacent channel so that the current imaging channel can start the shooting operation and start the timing based on the current adjacent channel positive start signal.

[0118] The step jump unit is used to set the next imaging channel adjacent to the current imaging channel as the new current imaging channel, and jump back to the step of generating the current adjacent channel positive start signal using the current imaging channel, until the last imaging channel receives the current adjacent channel positive start signal.

[0119] In some specific embodiments, the remote sensing data transmission module 12 may specifically include:

[0120] The timing duration monitoring unit is used to monitor the timing duration of each imaging channel in real time, and when the timing duration of the current imaging channel reaches the preset exposure shooting duration, it stops the exposure shooting operation and sends a data gating signal to the corresponding remote sensing data switch so that each remote sensing data switch can be turned on based on the data gating signal.

[0121] The transmission time statistics unit is used to transmit the captured remote sensing data to the remote sensing data transmission interface through the remote sensing data switch using the current imaging channel, and to count the transmission time of transmitting the remote sensing data to the remote sensing data transmission interface.

[0122] A data shutdown signal sending unit is used to send a data shutdown signal to the remote sensing data switch using the current imaging channel when the transmission duration reaches a preset data download duration, so as to disconnect the remote sensing data switch based on the data shutdown signal.

[0123] In some specific embodiments, the imaging channel control device based on spaceborne instruments may further include:

[0124] A forward stop shooting master control signal sending unit is used to monitor in real time whether the cooperative control module sends a forward stop shooting master control signal to the current imaging channel; the current imaging channel is the first imaging channel;

[0125] The shooting operation stop unit is used to generate a current positive stop shooting signal using the current imaging channel if the cooperative control module sends a positive stop shooting master control signal to the current imaging channel, and then send the current positive stop shooting signal to the next subsequent imaging channel, and then stop the shooting operation corresponding to the current imaging channel.

[0126] The current imaging channel update unit is used to set the next imaging channel as the new current imaging channel and jump back to the step of generating the current positive stop shooting signal using the current imaging channel until all imaging channels have stopped shooting.

[0127] In some specific embodiments, the imaging channel disabling module 13 may specifically include:

[0128] The operational status monitoring unit is used to monitor the operational status of each imaging channel in real time using the collaborative control module.

[0129] The channel prohibition signal sending unit is used to send a channel prohibition signal to the imaging channel using the collaborative control module if a single imaging channel is found to be abnormal and unable to complete the exposure shooting operation. Then, it controls the remaining imaging channels to continue shooting according to the forward working order. After the shooting is completed, it sends a stop shooting master control signal based on the collaborative control module to stop the shooting operation of each imaging channel in sequence.

[0130] In some specific embodiments, the reverse working order generation module 14 may specifically include:

[0131] The reverse execution control signal sending unit is used to send a reverse execution control signal to each imaging channel that has not experienced an anomaly if at least two of the imaging channels have an anomaly and the anomaly locations are concentrated at a preset preceding position of the forward working order, so as to determine the reverse working order based on the reverse execution control signal.

[0132] The adjacent channel reverse start signal transmission unit is used to send a reverse start shooting master control signal to the last imaging channel based on the cooperative control module and the reverse working order, so that the last imaging channel starts working and starts timing based on the reverse start shooting master control signal, and transmits the adjacent channel reverse start signal to the adjacent preceding imaging channels step by step, so that each imaging channel that has not experienced any abnormalities starts working and starts timing based on the adjacent channel reverse start signal; wherein, the imaging channel that has experienced an abnormality only performs timing operation and does not perform shooting operation or data transmission operation.

[0133] The data gating signal sending unit is used to stop the exposure shooting operation when the timing duration of the imaging channel without abnormality reaches the preset exposure shooting duration, and to send the data gating signal, the captured remote sensing data and the data shutdown signal to the corresponding remote sensing data switch in the reverse working order.

[0134] The reverse stop shooting master control signal sending unit is used to monitor in real time whether the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel. If the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel, the reverse stop signal of the adjacent channel is transmitted step by step to the adjacent preceding imaging channel along the reverse working order, until all the imaging channels stop shooting operation based on the reverse stop signal of the adjacent channel and return to the working standby state.

[0135] The reverse shooting operation execution unit is used to continue executing the reverse shooting operation if the collaborative control module does not send a reverse stop shooting master control signal to the last imaging channel.

[0136] Furthermore, embodiments of this application also disclose an electronic device, Figure 9This is a structural diagram of an electronic device 20 according to an exemplary embodiment. The content of the diagram should not be construed as limiting the scope of this application. Specifically, the electronic device 20 may include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input / output interface 25, and a communication bus 26. The memory 22 stores a computer program, which is loaded and executed by the processor 21 to implement the relevant steps in the imaging channel control method based on spaceborne instruments disclosed in any of the foregoing embodiments. Furthermore, the electronic device 20 in this embodiment may specifically be an electronic computer.

[0137] In this embodiment, the power supply 23 is used to provide operating voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and external devices, and the communication protocol it follows can be any communication protocol applicable to the technical solution of this application, and is not specifically limited here; the input / output interface 25 is used to acquire external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs, and is not specifically limited here.

[0138] In addition, the memory 22, as a carrier for resource storage, can be a read-only memory, random access memory, disk or optical disk, etc. The resources stored thereon can include operating system 221, computer program 222, etc., and the storage method can be temporary storage or permanent storage.

[0139] The operating system 221 is used to manage and control the various hardware devices on the electronic device 20 and the computer program 222, which may be Windows Server, Netware, Unix, Linux, etc. In addition to including a computer program capable of performing the imaging channel control method based on a spaceborne instrument as disclosed in any of the foregoing embodiments, the computer program 222 may further include computer programs capable of performing other specific tasks.

[0140] Furthermore, this application also discloses a computer-readable storage medium for storing a computer program; wherein, when the computer program is executed by a processor, it implements the aforementioned imaging channel control method based on spaceborne instruments. Specific steps of this method can be found in the corresponding content disclosed in the foregoing embodiments, and will not be repeated here.

[0141] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0142] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0143] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0144] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0145] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An imaging channel control method based on spaceborne instruments, characterized in that, Applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches; the method includes: The cooperative control module sends a forward sequence signal to each of the imaging channels to obtain a forward working order. When all the imaging channels are working normally, the cooperative control module controls each of the imaging channels to start shooting and start timing in sequence based on the forward working order. After the timing duration of each imaging channel reaches the preset exposure duration, the shooting stops. The corresponding remote sensing data switches are turned on sequentially according to the forward working order. The captured remote sensing data is then transmitted through the remote sensing data transmission interface, and the remote sensing data switches are turned off after the transmission is completed. If a single imaging channel malfunctions, the collaborative control module disables the malfunctioning imaging channel and controls the remaining imaging channels to continue shooting according to the forward working sequence. If at least two of the imaging channels are abnormal, the collaborative control module generates a reverse working order based on the reverse sequence signal, and controls each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the captured remote sensing data.

2. The spaceborne instrument control method based on the imaging channel according to claim 1, characterized in that, Each imaging channel corresponds one-to-one with each remote sensing data switch; there is a bidirectional signal link between the collaborative control module and each imaging channel; there is a bidirectional signal link between every two adjacent imaging channels; the data output terminal of each imaging channel is connected to the input terminal of the remote sensing data switch; the output terminal of each remote sensing data switch is connected to the remote sensing data transmission interface.

3. The spaceborne instrument control method based on the imaging channel according to claim 1, characterized in that, The step of using a collaborative control module to send a forward sequence signal to each of the imaging channels to obtain a forward working order, and when all the imaging channels are working normally, using the collaborative control module and based on the forward working order to control each imaging channel to sequentially start shooting and timing, includes: The collaborative control module sends a channel enable signal to each of the imaging channels, so that each imaging channel initializes based on the channel enable signal and enters a standby working state; all imaging channels are in a standby working state. The collaborative control module is used to determine whether each imaging channel is in normal working condition. If each imaging channel is in normal working condition, the collaborative control module generates a forward sequential execution control signal and determines the forward working order of each imaging channel based on the forward sequential execution control signal. Then, based on the forward working order, a forward start shooting master control signal is sent to the current imaging channel that is first in the sequence. The current imaging channel is used to start the shooting operation and start the timing based on the positive start shooting master control signal. Then, the current imaging channel generates the current adjacent channel positive start signal. The current imaging channel transmits the current adjacent channel positive start signal to the current adjacent channel so that the current imaging channel can start the shooting operation and start the timing based on the current adjacent channel positive start signal. The next imaging channel adjacent to the current imaging channel is set as the new current imaging channel, and the process jumps back to the step of generating a positive start signal for the current adjacent channel using the current imaging channel, until the last imaging channel receives the positive start signal for the current adjacent channel.

4. The spaceborne instrument control method based on the imaging channel according to claim 3, characterized in that, The process of stopping shooting after the timing duration of each imaging channel reaches the preset exposure duration, sequentially turning on the corresponding remote sensing data switches based on the forward working sequence, transmitting the captured remote sensing data through the remote sensing data transmission interface, and turning off the remote sensing data switches after transmission is complete includes: The timing duration of each imaging channel is monitored in real time. When the timing duration of the current imaging channel reaches the preset exposure shooting duration, the exposure shooting operation is stopped, and a data gating signal is sent to the corresponding remote sensing data switch so that each remote sensing data switch can be turned on based on the data gating signal. The remote sensing data captured by the current imaging channel is transmitted to the remote sensing data transmission interface through the remote sensing data switch, and the transmission time of the remote sensing data to the remote sensing data transmission interface is counted. When the transmission duration reaches the preset data download duration, a data shutdown signal is sent to the remote sensing data switch using the current imaging channel, so as to disconnect the remote sensing data switch based on the data shutdown signal.

5. The spaceborne instrument control method based on the imaging channel according to claim 1, characterized in that, After the timing duration of each imaging channel reaches the preset exposure duration, the imaging stops, and the corresponding remote sensing data switches are sequentially turned on according to the forward working order. Then, the captured remote sensing data is transmitted through the remote sensing data transmission interface, and after the transmission is completed, the remote sensing data switches are turned off. The process further includes: Real-time monitoring of whether the collaborative control module sends a positive stop-shooting master control signal to the current imaging channel; the current imaging channel is the first imaging channel; If the collaborative control module sends a positive stop shooting master control signal to the current imaging channel, it generates a current positive stop shooting signal using the current imaging channel, sends the current positive stop shooting signal to the next imaging channel, and then stops the shooting operation corresponding to the current imaging channel. The next imaging channel is set as the new current imaging channel, and the process jumps back to the step of generating a current positive stop shooting signal using the current imaging channel, until all imaging channels have stopped shooting.

6. The spaceborne instrument control method based on the imaging channel according to claim 1, characterized in that, If a single imaging channel malfunctions, the collaborative control module disables the malfunctioning imaging channel and controls the remaining imaging channels to continue imaging according to the forward working sequence, including: The collaborative control module is used to monitor the operational status of each imaging channel in real time. If a single imaging channel is found to be malfunctioning and unable to complete the exposure shooting operation, the collaborative control module sends a channel prohibition signal to the imaging channel, and then controls the remaining imaging channels to continue shooting according to the forward working order. After the shooting is completed, the collaborative control module sends a stop shooting master control signal to stop the shooting operation of each imaging channel in sequence.

7. The spaceborne instrument control method based on the imaging channel according to claim 1, characterized in that, If at least two of the imaging channels are abnormal, the collaborative control module generates a reverse working order based on the reverse sequence signal, and controls each imaging channel that has not experienced an anomaly to sequentially start and time the capture based on the reverse working order, so as to transmit the captured remote sensing data, including: If at least two of the imaging channels malfunction and the malfunction locations are concentrated at a preset preceding position in the forward working order, the collaborative control module sends a reverse execution control signal to each imaging channel that has not malfunctioned, so as to determine the reverse working order based on the reverse execution control signal. The collaborative control module sends a reverse start-up shooting master control signal to the last imaging channel based on the reverse working order, so that the last imaging channel starts working and begins timing based on the reverse start-up shooting master control signal, and transmits the reverse start-up signal of the adjacent preceding imaging channel level by level, so that each imaging channel that has not experienced any abnormalities starts working and begins timing based on the reverse start-up signal of the adjacent channel; wherein, the imaging channel that has experienced an abnormality only performs timing operation and does not perform shooting operation or data transmission operation. When the timing duration of the imaging channel without any abnormalities reaches the preset exposure shooting duration, the exposure shooting operation is stopped, and data selection signal, captured remote sensing data and data shutdown signal are sent to the corresponding remote sensing data switch in the reverse working order. The system monitors in real time whether the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel. If the collaborative control module sends a reverse stop shooting master control signal to the last imaging channel, the system uses the last imaging channel to transmit the reverse stop signal of the adjacent preceding imaging channel in reverse working order until all imaging channels stop shooting based on the reverse stop signal of the adjacent channel and return to the working standby state. If the collaborative control module does not send a reverse stop shooting master control signal to the last imaging channel, the reverse shooting operation process will continue.

8. A spaceborne instrument control device based on an imaging channel, characterized in that, Applied to a spaceborne instrument control architecture; the spaceborne instrument control architecture includes a collaborative control module, a remote sensing data transmission interface, several independent imaging channels, and several remote sensing data switches, the device comprising: The forward working sequence generation module is used to send a forward sequence signal to each of the imaging channels using the collaborative control module to obtain a forward working sequence. When all of the imaging channels are working normally, the collaborative control module controls each of the imaging channels to start shooting and timing in sequence based on the forward working sequence. The remote sensing data transmission module is used to stop shooting after the timing duration of each imaging channel reaches the preset exposure duration, sequentially turn on the corresponding remote sensing data switches based on the forward working order, then transmit the captured remote sensing data through the remote sensing data transmission interface, and turn off the remote sensing data switches after the transmission is completed. An imaging channel disable module is used to disable the abnormal imaging channel by means of the cooperative control module if a single imaging channel is abnormal, and to control the remaining imaging channels to continue shooting according to the forward working order. The reverse working order generation module is used to generate a reverse working order based on the reverse sequence signal using the cooperative control module if at least two of the imaging channels are abnormal, and to control each imaging channel that has not experienced an abnormality to start shooting and start timing in sequence based on the reverse working order, so as to transmit the captured remote sensing data.

9. An electronic device, characterized in that, include: Memory, used to store computer programs; A processor for executing the computer program to implement the imaging channel-based spaceborne instrument control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, Used to store a computer program, wherein the computer program, when executed by a processor, implements the spaceborne instrument control method based on the imaging channel as described in any one of claims 1 to 7.

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