Remote sensing satellite data output device

Abstract

The invention relates to the technical field of satellite data transmission, and discloses a remote sensing satellite data output device, which comprises a data acquisition device used for carrying out picture acquisition on data information needing to be acquired; the abnormal data capturing device is used for carrying out abnormal data acquisition on the running state of the satellite; the data information classification processing device is used for carrying out classification integration processing on the collected picture information and the captured abnormal data; and a data transmission device. According to the remote sensing satellite data output device, information comprehensive protection can be carried out on collected data through the arranged data transmission device, data information is integrated, meanwhile, the data information is converted into a plurality of small-type data packets, segmented output is carried out directly in a sub-data mode, and the output in the mode is more convenient to carry out. The time period of transmitting important information by data can be greatly reduced, and important data information can be known first to make a response decision.

Description

Technical Field

[0001] The invention relates to the technical field of satellite data transmission, in particular to a remote sensing satellite data output device. Background Art

[0002] Remote sensing satellites play an important role in natural exploration, disaster prevention, national defense and other fields. The realization of their functions relies on payloads such as remote sensing cameras, data processors, link managers, satellite multiplexers, etc. Due to the difficulty in developing these payloads, their delivery time usually lags far behind other satellite subsystems, which seriously increases the time for satellite assembly and ground testing.

[0003] The remote sensing satellite payload data loading equipment is used to simulate the data output of each payload of the remote sensing satellite and load it onto the satellite during the ground testing of the remote sensing satellite, thereby realizing comprehensive testing of the satellite payload and platform. This equipment is of great significance for shortening the satellite ground testing cycle and accelerating the satellite model development task.

[0004] At present, some satellites rely on data loading modules during data output. The module receives simulated payload data from the host computer and caches it, and then completes the data loading on the satellite through specified interfaces such as LVDS, RS-422, TLK2711, etc., with customized data transmission protocols and specified code rates. At the same time, in response to some natural interference, the stability of the output will have a certain impact. With the increase in competing companies, the confidentiality of their data transmission also needs to be given a certain degree of attention. If competing companies interfere with or intercept the transmitted data, it will cause a certain degree of data leakage, affecting the judgment and decision-making. Therefore, a remote sensing satellite data output device is proposed to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a remote sensing satellite data output device, which solves the problems of long loading time and data information in the transmission of remote sensing satellites in the prior art.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a remote sensing satellite data output device, comprising a data acquisition device, for collecting pictures of the data information to be collected;

[0009] An abnormal data capture device is used to collect abnormal data on the operating status of the satellite itself;

[0010] A data information classification and processing device is used to classify and integrate the collected image information and captured abnormal data;

[0011] A data transmission device, used for ground transmission of the data integrated by the data information classification processing module;

[0012] The data transmission device includes a position information arrangement module, a data protection module, a transmission speed module, a segmentation module and a graphic information comprehensive processing module;

[0013] The data protection module is used to perform multi-dimensional protection output on the transmitted data;

[0014] The transmission speed module is used to output different data information at different speeds in priority order;

[0015] The segmentation module is used to convert the transmitted data into multiple sub-data packets for output;

[0016] The graphic and text information comprehensive processing module is used to perform dual-marking data integration processing of graphics and text on the output data.

[0017] Preferably, the abnormal data capturing device includes an operation detection device and an information recording device;

[0018] The operation detection device is used to monitor the real-time operation status of the satellite. When an operation module of the satellite is abnormal, abnormal data detection will be performed on the operation module and abnormal data information will be generated;

[0019] The information recording device includes a time recording module, a position recording module and a data recording module;

[0020] The time recording module records the time when the abnormal data appears, the time when the abnormal data appears, and the time when the abnormal data ends;

[0021] The position recording module records the satellite positions of the abnormal data in detail and records the longitude and latitude information according to the longitude and latitude.

[0022] Preferably, the position recording module also includes an environment detection module, and the environment detection module is used to perform real-time detection of the working environment state around the satellite; the working environment includes the working temperature inside the satellite and the working temperature outside the satellite.

[0023] Preferably, the data information classification processing device includes:

[0024] The processing module is used to integrate and classify the collected information and classify it into Class A, Class B, and Class C according to the emergency information;

[0025] The category A is satellite operation abnormal data category;

[0026] The category B is important information of the collected pictures;

[0027] The category C includes normal environmental data and normal information road conditions and environmental data collected by the data collection device.

[0028] Preferably, the transmission speed module includes an extraction device and a power amplifier module;

[0029] The extraction module performs intensity extraction on the data information classified by the processing module;

[0030] and classify the data information into urgent information, important information and ordinary information;

[0031] The Class A information is emergency information, the Class B information is important information, and the Class C information is general information;

[0032] The power amplifier module is used to describe the functional information of the data information extracted by the extraction module.

[0033] Preferably, the segmentation module includes a data analysis and decomposition module;

[0034] The data analysis and decomposition module performs tree-like decomposition on the larger or more transmitted data packets;

[0035] It is broken down into multiple small memory sub-packets, and each sub-packet is classified again.

[0036] Preferably, the data protection module includes a feedback module, a conversion module and a destruction module;

[0037] The feedback module performs outer encryption protection and electromagnetic interference protection on the transmitted data. When the transmitted data is decrypted at the middle end, the conversion module will be triggered to convert the data information in the multiple sub-data packets to be transmitted into encrypted digital information data with random digital serial numbers by the conversion module;

[0038] After receiving the encrypted digital information data, the receiving end will parse it according to the code book of the random number according to the pre-arranged receiving terminal code book and directly notify the receiving end that the data information has been interfered or intercepted in the middle;

[0039] When electromagnetic interference occurs in the transmitted data information, the signal amplifier in the electromagnetic interference protection will appear, and it is divided into primary amplifier, secondary amplifier and tertiary amplifier according to the interference intensity;

[0040] The signal amplifier is used to increase the power during data transmission.

[0041] Preferably, the destruction module is used to destroy the frequency band of the transmitted data information, and a random data transmission channel will be generated for each data transmission to prevent the unified transmission channel from being monitored.

[0042] Preferably, the graphic and text information comprehensive processing module includes a drawing module and a text module;

[0043] The drawing module is used to store and transmit the collected picture information data;

[0044] The text module is used to store and transmit the collected text information data;

[0045] and a difference processing module;

[0046] The difference processing module is used to compare double or multiple data information in the same time period, perform data comparison, mark the data difference positions, and generate text or digital annotation information.

[0047] (III) Beneficial effects

[0048] Compared with the prior art, the present invention provides a remote sensing satellite data output device having the following features:

[0049] Beneficial effects:

[0050] 1. The remote sensing satellite data output device can perform comprehensive information protection on the collected data through the data transmission device, integrate the data information, and convert the data information into multiple small data packets to avoid the long loading time or long data transmission time of big data during data transmission. Because in the data transmission process, the data will not be parsed until the data transmission is completed, that is, after the receiving end has received all the data, and the sub-data is directly used for segmented output. This output method can greatly reduce the time period for data to transmit important information, and can know important data information in advance and make response decisions.

[0051] 2. The remote sensing satellite data output device, through the data protection module, can provide multi-directional protection for the transmitted data during the data transmission process to prevent the data transmission from being stolen by external devices. Even if it is stolen, it will take a long time, thereby increasing the confidentiality of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of the system structure of a remote sensing satellite data output device proposed by the present invention; DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1 , a remote sensing satellite data output device includes a data acquisition device, which is used to collect images of the data information to be collected; and the data acquisition device generally uses an ultra-clear camera to collect image data of the earth's surface through satellites, and then relies on computer technology to process the image to obtain the required data. The data acquisition methods mainly include optical remote sensing, radar remote sensing and microwave remote sensing. Optical remote sensing uses sunlight as energy to obtain image data of the earth's surface by recording the reflection, absorption and radiation of light by the atmosphere and surface materials. Radar remote sensing obtains information on the earth's surface by emitting high-frequency electromagnetic waves and receiving returned electromagnetic waves. The working principle of microwave remote sensing is similar to that of radar remote sensing, but it uses low-frequency electromagnetic waves and is not easily affected by rain and fog.

[0055] The abnormal data capture device is used to collect abnormal data on the operating status of the satellite itself; the abnormal data capture device includes an operation detection device and an information recording device; the operation detection device is used to monitor the real-time operating status of the satellite. When an operating module of the satellite is abnormal, abnormal data detection will be performed on the operating module and abnormal data information will be generated; because the satellite is greatly affected by external factors when operating in space, such as low temperature, high temperature, and collision of gravel, the operating status of the satellite needs to be detected at all times, and the remote sensing satellite is composed of multiple modules, so a set of overall abnormal data capture devices will be designed for the multiple modules in the early stage of design. For example, the normal operation of a module is a string of codes, but after an abnormality occurs, a corresponding segment in the code will generate an abnormal code, and the abnormal code will be preferentially transmitted to the ground or the receiving end by data, and the receiving end will analyze the problem of the abnormal data, correct the problem and repair the problem action of the satellite at this time.

[0056] The information recording device includes a time recording module, an orientation recording module and a data recording module; the time recording module records the time when the abnormal data appears, and records the time when the abnormal data appears, and the time when the abnormal data ends; because the transmission time must be recorded during the data transmission process, and there is a time difference in the transmission, so as long as the data is transmitted, the time recording module will be triggered to mark the data time transmitted at this time, and the ground or the receiving end receives the data information at the time of transmission, which is convenient for the later analysis and processing of the data. Some abnormal data may appear sporadically, so when recording data information, it is necessary to record the initial time and the end time. After the data analysis in the later stage, it will be determined according to the time period how the state of the satellite is formed at this time, and whether the abnormal information generated by the interference to the satellite during this time period.

[0057] The position recording module records the satellite position of the abnormal data in detail and records the longitude and latitude information according to the longitude and latitude. When the satellite generates abnormal data, it is generally in operation. If the operating satellite does not record the time and position, it is easy to be ignored by external environmental factors, resulting in data misjudgment.

[0058] The position recording module also includes an environmental detection module, which is used to perform real-time detection of the working environment status around the satellite; the working environment includes the working temperature inside the satellite and the working temperature outside the satellite, and the environmental detection module mainly records and detects the working environment of the satellite. There are too many uncertain factors for the satellite in space, and it does not have certain protection. When it is subject to changes in high and low temperature environments, its operating posture and fuel consumption will also change accordingly, so the environmental detection module is used to monitor the working environment of the satellite in real time. A data information classification and processing device is used to classify and integrate the collected image information and captured abnormal data; the data information classification and processing device includes:

[0059] The processing module is used to integrate and classify the collected information, and classify it into Class A, Class B, and Class C according to emergency information; Class A is the satellite operation abnormal data class; Class B is the collected important information of the picture; Class C is the normal environmental data and the normal information road conditions and environmental data collected by the data collection device. Because in the process of data transmission, it is necessary to consider the priority of transmission. When efficient output is required, priority transmission must be carried out. For example, when the satellite collects data from the ground, the satellite operation data parameters are still abnormal. Therefore, for the stable operation of the satellite, the abnormal data of the satellite operation must be transmitted first, and the receiving end will judge and analyze it to solve the abnormal situation. The collected data will be transmitted later. Because the stability of the satellite operation must be ranked in an important position, if the working condition of the satellite itself is abnormal, the abnormal data will be output first.

[0060] A data transmission device, used for ground transmission of the data integrated by the data information classification processing module;

[0061] The transmission speed module includes an extraction device and a power amplifier module;

[0062] The extraction module performs intensity extraction on the data information classified by the processing module;

[0063] and classify the data information into urgent information, important information and ordinary information;

[0064] The Class A information is emergency information, the Class B information is important information, and the Class C information is general information;

[0065] The power amplifier module is used to describe the functional information of the data information extracted by the extraction module.

[0066] The power amplifier module is designed to provide additional descriptions for the collected data information. For example, the traditional way to collect traffic jam information is to directly provide image information of the road section, and the receiving end analyzes it. This results in the transmission time and the time required for analysis. The accumulation of time differences will lead to low accuracy of the time difference in data transmission. The power amplifier module directly analyzes the data and makes information descriptions, which will improve the overall accuracy of the data information because the satellite collects data in real time.

[0067] The data transmission device includes a position information arrangement module, a data protection module, a transmission speed module, a segmentation module and a graphic information comprehensive processing module;

[0068] The data protection module is used to perform multi-dimensional protection output on the transmitted data;

[0069] The data protection module includes a feedback module, a conversion module and a destruction module;

[0070] The feedback module performs outer encryption protection and electromagnetic interference protection on the transmitted data. When the transmitted data is decrypted at the middle end, the conversion module will be triggered to convert the data information in the multiple sub-data packets to be transmitted into encrypted digital information data with random digital serial numbers by the conversion module;

[0071] After receiving the encrypted digital information data, the receiving end will parse it according to the code book of the random number according to the pre-arranged receiving terminal code book and directly notify the receiving end that the data information has been interfered or intercepted in the middle;

[0072] When electromagnetic interference occurs in the transmitted data information, the signal amplifier in the electromagnetic interference protection will appear, and it is divided into primary, secondary and tertiary amplification according to the interference intensity; and the use of the signal amplifier, although it can improve the reception effect, it will transmit some clutter, so it is unnecessary, that is, when the electromagnetic interference intensity and information belong to Class C, it is not important to turn it on, and you can wait until the surrounding electromagnetic interference ends before transmitting data. In actual conditions, you can judge whether amplified reception is needed based on actual information.

[0073] The signal amplifier is used to increase the power during data transmission.

[0074] The destruction module is used to destroy the frequency band of the transmitted data information, and each data transmission will generate a random data transmission channel to prevent the unified transmission channel from being monitored. Monitoring at this time is also known as being stolen. Although satellite communication is more secure than ground networks, due to the long transmission distance of the signal, satellite signals are easily cracked by hackers, thereby stealing important information.

[0075] The transmission speed module is used to output different data information at different speeds in priority order;

[0076] The segmentation module is used to convert the transmitted data into multiple sub-data packets for output; the segmentation module includes a data analysis and scattering module;

[0077] The data analysis and decomposition module performs tree-like decomposition on the larger or more transmitted data packets;

[0078] It is disassembled into multiple small memory sub-packets, and each sub-packet is reclassified. It can comprehensively protect the collected data, integrate the data information, and convert the data information into multiple small data packets to avoid the long loading time or long data transmission time of big data during data transmission. Because in the data transmission process, the data will not be parsed until the data transmission is completed, that is, after the receiving end has received all the data, and the sub-data is directly used for segmented output. This output method can greatly reduce the time period for data to transmit important information, and can know important data information in advance.

[0079] The graphic and text information comprehensive processing module is used to perform dual-marking data integration processing of graphics and text on the output data. The graphic and text information comprehensive processing module includes a drawing module and a text module; the drawing module is used to store and transmit the collected picture information data; the picture information includes the road surface information on the ground, which is stored in the form of images and pictures, and the text module is used to store and transmit the collected text information data; and the text information data includes digital information and converted into substantial text information. When the substantial text information is digitized, because the digitally processed data information has a smaller memory, while the substantial text information has a larger memory, in order to facilitate the efficiency of data transmission, the data conversion form is used to transmit and output it.

[0080] Difference processing module;

[0081] The difference processing module is used to compare the double or multiple data information of the same time period, perform data comparison, and mark the data difference position to generate text or digital annotation information. Because in the process of data collection, the satellite may collect data twice or more in one cycle, and the image information may be different at this time. For example, in the previous time period, the location is in the building construction stage, so the data collected by the satellite is the data information during the floor construction period. When the data is collected at the same location again, the floor has been built, so the difference data is generated at this time, and the difference processing module will mark the amplitude according to the content of the difference, which is similar to comparing two pictures, finding the difference points, and marking and circling the difference points. At this time, the data is output, and the receiving end can know the time period change and the degree of differentiation at this place according to the difference information, so as to facilitate the overall data analysis and processing of the real situation.

[0082] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A remote sensing satellite data output device, characterized in that: include A data acquisition device, used for collecting images of the data information to be collected; An abnormal data capture device is used to collect abnormal data on the operating status of the satellite itself; A data information classification and processing device is used to classify and integrate the collected image information and captured abnormal data; A data transmission device, used for ground transmission of the data integrated by the data information classification processing module; The data transmission device includes a position information arrangement module, a data protection module, a transmission speed module, a segmentation module and a graphic information comprehensive processing module; The data protection module is used to perform multi-dimensional protection output on the transmitted data; The transmission speed module is used to output different data information at different speeds in priority order; The segmentation module is used to convert the transmitted data into multiple sub-data packets for output; The graphic and text information comprehensive processing module is used to perform dual-marking data integration processing of graphics and text on the output data.

2. A remote sensing satellite data output device according to claim 1, characterized in that: The abnormal data capturing device includes an operation detection device and an information recording device; The operation detection device is used to monitor the real-time operation status of the satellite. When an operation module of the satellite is abnormal, abnormal data detection will be performed on the operation module and abnormal data information will be generated; The information recording device includes a time recording module, a position recording module and a data recording module; The time recording module records the time when the abnormal data appears, the time when the abnormal data appears, and the time when the abnormal data ends; The position recording module records the satellite positions of the abnormal data in detail and records the longitude and latitude information according to the longitude and latitude.

3. A remote sensing satellite data output device according to claim 2, characterized in that: The position recording module also includes an environment detection module, which is used to monitor the working environment state around the satellite in real time; The working environment includes the working temperature inside the satellite and the working temperature outside the satellite.

4. A remote sensing satellite data output device according to claim 3, characterized in that: The data information classification processing device comprises: The processing module is used to integrate and classify the collected information and classify it into Class A, Class B, and Class C according to the emergency information; The category A is satellite operation abnormal data category; The category B is important information of the collected pictures; The category C includes normal environmental data and normal information road conditions and environmental data collected by the data collection device.

5. A remote sensing satellite data output device according to claim 4, characterized in that: The transmission speed module includes an extraction device and a power amplifier module; The extraction module performs intensity extraction on the data information classified by the processing module; and classify the data information into urgent information, important information and ordinary information; The Class A information is emergency information, the Class B information is important information, and the Class C information is general information; The power amplifier module is used to describe the functional information of the data information extracted by the extraction module.

6. A remote sensing satellite data output device according to claim 5, characterized in that: The segmentation module includes a data analysis and scattering module; The data analysis and decomposition module performs tree-like decomposition on the larger or more transmitted data packets; It is broken down into multiple small memory sub-packets, and each sub-packet is classified again.

7. A remote sensing satellite data output device according to claim 6, characterized in that: The data protection module includes a feedback module, a conversion module and a destruction module; The feedback module performs outer encryption protection and electromagnetic interference protection on the transmitted data. When the transmitted data is decrypted at the middle end, the conversion module will be triggered to convert the data information in the multiple sub-data packets to be transmitted into encrypted digital information data with random digital serial numbers by the conversion module; After the receiving end receives the encrypted digital information data, it will parse it according to the code book of the random number according to the pre-arranged receiving terminal code book and directly notify the receiving end that the data information has been interfered or intercepted in the middle; When electromagnetic interference occurs in the transmitted data information, the signal amplifier in the electromagnetic interference protection will appear, and it is divided into primary amplifier, secondary amplifier and tertiary amplifier according to the interference intensity; The signal amplifier is used to increase the power during data transmission.

8. A remote sensing satellite data output device according to claim 7, characterized in that: The destruction module is used to destroy the frequency band of the transmitted data information, and a random data transmission channel will be generated for each data transmission to prevent the unified transmission channel from being monitored.

9. A remote sensing satellite data output device according to claim 1, characterized in that: The graphic and text information comprehensive processing module includes a drawing module and a text module; The drawing module is used to store and transmit the collected picture information data; The text module is used to store and transmit the collected text information data; and a difference processing module; The difference processing module is used to compare double or multiple data information in the same time period, perform data comparison, mark the data difference positions, and generate text or digital annotation information.

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