CN115373289A - Automatic testing device of space-air ground cooperative remote sensing system - Google Patents
Automatic testing device of space-air ground cooperative remote sensing system Download PDFInfo
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Abstract
The application provides an automatic testing device of a space-time and air-ground cooperative remote sensing system, which is used for automatically testing a tested system. The automatic test device includes: the test and monitoring management subsystem comprises: the system comprises a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system and a ground monitoring management system; and the time system equipment is used for completing the time alignment of all units in the tested system and the automatic testing device. The time system equipment transmits satellite time service information to a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem, a ground platform simulation verification subsystem and a ground monitoring management system.
Description
Technical Field
The application integrally belongs to the field of automatic testing and verification of space-to-air cooperative remote sensing systems, and particularly relates to an automatic testing device and system of an integrated cooperative comprehensive remote sensing system constructed by a space-based satellite, a near space airship, an aerial manned airplane or a large/small unmanned aerial vehicle.
Background
The research and development of aerospace technology requires qualitative, quantitative testing and verification of automated testing techniques. With the rapid development of computer technology, microelectronic technology, network communication technology and testing technology, the complexity of aerospace systems and devices is increasing day by day, and the traditional testing mode cannot meet the testing requirements of large systems. The space, temporary and space integrated comprehensive remote sensing system comprehensively adopts multi-domain platform collaborative remote sensing of a satellite, an airship, an unmanned aerial vehicle and the like to acquire all-time, all-weather and high-precision remote sensing image information and provides accurate emergency application data service for users, the test system is very complex, the test subsystems are multiple, the test period is long, the traditional test method is complicated in processes of manually operating equipment, reading and recording instrument data and the like, the conditions of asynchronous test of each subsystem, fracture of the test process and the like easily occur, meanwhile, small artificial test errors introduced in the middle process of the test are accumulated through errors of all levels, the deviation of the whole test result is possibly overlarge or even errors occur, the traditional test mode is difficult to be applied to test and verification of a complex system, the automatic test device and the system are urgently required to be constructed, the whole-process working state of the system is simulated by integrating simulation data in a laboratory, the automatic acquisition and calculation of test values in the automatic test process are possible to greatly improve the test efficiency and increase the reliability of the test result, the construction of the space, the automatic test device and the system have great significance for the design and verification of the automatic remote sensing construction and the future development of the automatic test.
Because the space-to-space collaborative remote sensing system really enters the development and construction stage in recent years, and the testing system is complex and has large capital investment, the automatic testing method is not applied to the testing field.
Disclosure of Invention
In order to solve the problems of system resource structure, load composition, information flow, application mode, scene design, integrated simulation method and the like related to the integrated simulation verification of the space-critical space-ground cooperative remote sensing system, the application provides an automatic testing device of the space-critical space-ground cooperative remote sensing system.
The application provides an it faces sky ground in coordination remote sensing system's automatic testing arrangement for carry out automatic test to the system under test, the system under test is the ground emulation verification system that the sky faces sky ground in coordination remote sensing system, the system under test includes: a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem and a ground platform simulation verification subsystem,
wherein, the automatic test device includes:
the test and monitoring management subsystem comprises: the system comprises a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system and a ground monitoring management system;
the time system equipment is used for completing time alignment of all units in the tested system and the automatic testing device;
wherein, the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system are respectively connected to the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem, the ground platform simulation verification subsystem is connected to the ground monitoring management system,
wherein the time system equipment transmits the satellite time service information to a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem, a ground platform simulation verification subsystem and a ground monitoring management system,
the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system are used for respectively receiving load state information reported by each load in the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem, forwarding the reported load state information to the ground monitoring management system, and the ground monitoring management system performs index calculation on the load state information, acquires an index test value and displays the index test value in real time.
In at least one embodiment according to the present application, the time system device includes an NTP time network server, a pulse-per-second distributor, a navigation receiver,
the navigation receiver receives the navigation signal and transmits the satellite time service information to a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system and an NTP time network server through a network switch,
the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system broadcast and distribute satellite time service information to all load units of the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem,
the NTP time network server is connected to the ground platform simulation verification subsystem and the ground monitoring management system,
the navigation receiver is also connected to a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem and an unmanned aerial vehicle platform ground simulation verification subsystem through a radio frequency line and a second pulse distributor, and the time synchronization function is completed in a matching mode.
In at least one embodiment according to the present application, the payload status information includes a test timestamp and critical data.
In at least one embodiment according to the present application, the test indexes of the automatic testing apparatus include a data transmission rate, a packet loss rate, a task planning time, a co-observation positioning accuracy, a multi-source data fusion time, a data distribution time, and a task maximum response time.
In at least one embodiment according to the present application, the testing and monitoring management subsystem further includes an auxiliary testing unit, and the auxiliary testing unit is a network switch.
In at least one embodiment according to the present application, a satellite platform ground simulation verification subsystem includes an on-board camera controller, a mission planning system, a data processing system, and a communication unit;
the ground simulation verification subsystem of the airship platform comprises an airship camera controller, a data processing system and a communication unit;
the ground simulation verification subsystem of the unmanned aerial vehicle comprises an airborne camera controller, a data processing system and a communication unit;
the ground simulation verification subsystem comprises a task planning system, data exchange equipment, a user terminal and a communication unit.
In at least one embodiment according to the present application, wherein,
the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem are respectively connected to the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system through a CAN bus and an OC control bus.
In at least one embodiment according to the present application, wherein the ground platform emulation verification subsystem is connected to the ground monitoring management system via a LAN network.
The application also provides a testing method of the space-air cooperative remote sensing system, which utilizes the automatic testing device to test, and the testing method comprises the following steps:
s1: completing the power-on self-test and time alignment of the automatic test device;
s2: the system to be tested automatically executes the service process and simultaneously performs the automatic test process of the automatic test device,
in the process that the tested system automatically executes the service flow, all the loads in the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem respectively report load state information to the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system,
the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system transmit the load state information to the ground monitoring management system,
and the ground monitoring management system performs index calculation on the load state information, acquires an index test value and displays the index test value in real time.
The present application also provides a computer readable storage medium having stored thereon software instructions, which when executed, implement the above-described method.
Under the laboratory environment, the automatic testing device provided by the application completes the environment integration, installation and debugging of the automatic testing device, completes the automatic testing of the space-to-space collaborative remote sensing system based on the system, runs through the system business process, acquires the key index testing value, completes the comprehensive efficiency evaluation of the space-to-space collaborative remote sensing system based on the testing data, and constructs the test environment of the space-to-space collaborative remote sensing system in the field by referring to the design thought of the automatic testing system, develops the field test, and the indoor and outdoor test results reach the expectation and have good effect. The automatic testing device provided by the application is scientific and reasonable.
Drawings
The above features, technical features, advantages and modes of realisation of the present application will be further described in the following detailed description of preferred embodiments in a clearly understandable manner, in conjunction with the accompanying drawings. The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein:
fig. 1 shows a schematic structural diagram of an automatic testing device of a space-air cooperative remote sensing system according to an embodiment of the present application.
Fig. 2 shows a schematic structural diagram of a system under test according to an embodiment of the present application.
FIG. 3 shows a connection relationship between a test and monitor management subsystem and a system under test according to an embodiment of the application.
Fig. 4 shows a time series device test connection diagram according to an embodiment of the application.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present application, embodiments of the present application will now be described with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of an automatic testing device of a space-time cooperative remote sensing system according to an embodiment of the application. As shown in fig. 1, the automatic testing device is used for automatically testing a system under test (i.e. a ground simulation verification system of a space-air cooperative remote sensing system) in a laboratory environment. This automatic testing arrangement includes: a test and monitoring management subsystem; a time-line device.
1. Tested system
As shown in fig. 1, the system to be tested is a ground simulation verification system of the space-air cooperative remote sensing system, and includes a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem, and a ground platform simulation verification subsystem.
The structure of the system under test is shown in fig. 2. The satellite platform ground simulation verification subsystem comprises a satellite-borne camera controller, a task planning system, a data processing system and a communication unit. The ground simulation verification subsystem of the airship platform comprises an airship camera controller, a data processing system and a communication unit. The ground simulation verification subsystem of the unmanned aerial vehicle comprises an airborne camera controller, a data processing system and a communication unit. The ground simulation verification subsystem comprises a task planning system, data exchange equipment, a user terminal and a communication unit.
Fig. 2 also shows the interface connection relationship of the system under test. In the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem, the unmanned aerial vehicle platform ground simulation verification subsystem and the ground platform simulation verification subsystem, every two subsystems are connected through radio frequency lines, wireless communication is replaced by wired connection, and a full-communication network is formed, so that information interaction and communication of every two subsystems are realized.
As shown in fig. 2, the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem may be respectively connected to the ground platform simulation verification subsystem through radio frequency lines.
The satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem are connected to the test and monitoring management subsystem through a CAN bus and an OC control bus so as to realize the functions of load control, state monitoring, key information downloading and the like. The ground platform simulation verification subsystem is connected to the testing and monitoring management subsystem through the LAN network. The system to be tested is connected to the time system equipment through a 1PPS radio frequency line, and the time setting and other functions of the system are completed by matching with time information broadcast by a CAN bus.
2. Test and monitor management subsystem
The test and monitoring management subsystem mainly completes automatic test and monitoring management of state, data and the like of the tested prototype system. As shown in fig. 3, the testing and monitoring management subsystem includes a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system, a ground monitoring management system, and an auxiliary testing unit (such as a network switch). The specific connection structure between the test and monitor management subsystem and the system under test is shown in fig. 3.
The data management system of each platform of the satellite, the airship and the unmanned aerial vehicle is connected to the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem through the CAN bus and the OC control bus respectively, and is used for completing tasks of load instruction/OC control, instruction analysis, load state collection and downloading, test process information downloading, platform attitude data and time data broadcasting and distribution of each platform of the satellite, the airship and the unmanned aerial vehicle. The ground platform simulation verification subsystem is connected to the ground monitoring management system through a LAN (local area network). The ground monitoring management system provides a display platform for executing and monitoring a test task, and has the functions of monitoring the test progress, monitoring the load state of each platform in real time, displaying an image product and a test index in real time and the like.
3. Time-keeping device
The time system equipment comprises an NTP time network server, a pulse-per-second distributor and a navigation receiver and is used for finishing time alignment of subsystems of all platforms, ensuring time unification of all units of the whole system and providing a unified time standard for normal work and subsequent test index calculation of the system. The principle of the time-series device is shown in fig. 4.
The navigation receiver receives navigation signals and transmits satellite time service information to data management systems (including a satellite data management system, an airship data management system and an unmanned aerial vehicle data management system) of all platforms and an NTP time network server through a network switch. And after extracting time key information and carrying out format conversion, each platform data management system broadcasts and distributes the time information to all load units of a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem and an unmanned aerial vehicle platform ground simulation verification subsystem through a CAN bus, and each load completes self time alignment according to broadcasting time.
The NTP time network server is connected to the ground platform simulation verification subsystem and the ground monitoring management system. The ground platform simulation verification subsystem and the ground monitoring management system are server equipment, and time synchronization is mainly performed through software, and a time reference is acquired from an NTP time network server through a network cable, so that self time alignment is completed. In the automatic testing device, all units adopt a high-precision time service receiver to carry out unified time service and 1pps signals to carry out time synchronization, the time sequence of the whole automatic testing device is highly consistent, and except that the ground system carries out software time synchronization by an operating system, the time precision is in the ms level, other platforms reach the ns level.
The automatic testing device provided by the application can complete one-key automatic testing of key indexes such as data transmission rate, packet loss rate, task planning time, cooperative observation positioning accuracy, multi-source data fusion time, data distribution time and task maximum response time of the space-air cooperative remote sensing system, and is divided into seven testing subjects in total, wherein the testing subjects are respectively: the method comprises the following steps of ground task planning, task instruction annotation, satellite wide area search and online autonomous planning, staring observation of an airship key area, unmanned aerial vehicle accurate confirmation, multi-source data fusion in the airship and intelligent distribution of data products.
The specific test process of the automatic test device provided by the application comprises the following steps:
s1: and connecting the reference devices according to the figures 1 to 4, and completing power-on self-test and time alignment.
S2: the system under test automatically executes the service process and simultaneously performs the automatic test process of the automatic test device. The business process automatically executed by the tested system comprises the following steps:
1) And (4) planning a ground task.
The ground user terminal simulates observation requirements initiated by a single user or a command station, and forwards the requirements to the task planning system, and the ground task planning system performs task planning, scheduling and control according to the user requirements to generate observation tasks of a satellite, an airship and an unmanned aerial vehicle;
2) And (4) annotating the task instruction.
The satellite, the airship and the unmanned aerial vehicle observation tasks are respectively transmitted and upwards injected to the satellite, the airship and the unmanned aerial vehicle data management system through the communication unit;
3) Satellite wide area search and online autonomous planning.
The satellite platform data management system analyzes the instructions after receiving the ground task instructions and schedules a camera controller to start up, the camera controller correctly analyzes the instructions after receiving the wide area search instructions, a preset target area image is downloaded to the onboard processing system, the onboard processing system processes the target area image, the approximate direction and range of the observed area are determined, the image slice is sent to the onboard task planning system, the onboard task planning system performs autonomous task planning according to the satellite wide area search result to generate a satellite cooperative observation task, and meanwhile, multi-source data fusion of the preset high-resolution remote sensing image and the low-resolution remote sensing image is completed to generate an onboard multi-source remote sensing image product. The satellite data management system controls the satellite processing system to send the satellite multisource remote sensing image products to the airship platform through the communication unit for the on-airship multisource data fusion;
4) Staring and observing the key area of the airship.
After receiving the ground task instruction, the airship communication unit forwards the task instruction to the onboard data management system, and after the onboard data management system analyzes the instruction, the onboard data management system controls the camera controller to start up and work and transmits a preset staring image to the onboard processing system; the airship communication unit receives the satellite multi-source remote sensing image and forwards the satellite multi-source remote sensing image to the onboard processing system; the airship communication unit receives the multi-source remote sensing image of the unmanned aerial vehicle and forwards the multi-source remote sensing image to the onboard processing system;
5) And (6) accurately confirming the unmanned aerial vehicle.
After receiving a ground task instruction, an unmanned aerial vehicle communication unit forwards the instruction to an onboard data management system, the onboard data management system analyzes the task instruction and controls a camera controller to start up, accurate confirmation is carried out on a specified observation area, a preset accurate confirmation image is sent to an onboard data processing system by the camera controller, the onboard processing system processes image data to obtain accurate information of the observation area, and the data management system controls the data processing system to upload a processed accurate confirmation image product to an airship platform through the communication unit for the airship platform to carry out multi-source data fusion;
6) Multi-source data-on-the-boat fusion
And the on-board processing system performs multi-source data fusion and comprehensive processing on the on-board staring observation image issued by the airship camera controller, the satellite, the on-board multi-source remote sensing image product issued by the unmanned aerial vehicle and the accurate confirmation image product, and acquires accurate information such as the position, the quantity, the development state and the like of the observation target.
7) Intelligent distribution of data products
Under the emergency support mode, the multi-source fusion data image of the airship platform is directly transmitted to the user terminal through the communication unit for decision and emergency rescue. Under the conventional observation mode, the original image information of the satellite, the airship and the unmanned aerial vehicle is transmitted to the ground data processing system through the communication unit, the ground data processing system performs multi-source fusion and product production on the original data of each platform, and transmits the product data to the user terminal through the data exchange equipment.
And after the steps 1) to 7) are completed, completing the automatic execution process of one business process of the system. In the process of automatically executing the service by the system to be tested, all loads in a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem and an unmanned aerial vehicle platform ground simulation verification subsystem of the system to be tested report self load state information to respective data management systems through a CAN (controller area network) bus at the frequency of 1Hz, and report information such as test time scales, key data and the like according to a convention protocol. The satellite data management system, the airship data management system and the unmanned aerial vehicle data management system receive and summarize information reported by each load in a corresponding platform, and after data formatting processing is completed, each platform load data packet is forwarded to the ground monitoring management system through the communication unit of each platform, and the ground monitoring management system analyzes the received each platform load data packet, displays the load state of each platform in real time, and realizes state monitoring of each platform. And the ground monitoring management system performs index calculation on the received test time scale information, key data and other information to obtain an index test value, and displays the index test value on an interface in real time. The image products generated by each platform in real time are forwarded to the ground monitoring management system through the communication unit, and the ground monitoring management system carries out graphical display on the received image data products, so that testers can know the system test condition in time.
After verification, the image product is put forward from the user requirement and received, and the index test value is displayed in the monitoring management system, the whole process is 5-10 minutes on average, and the manual completion of the whole process test requires dozens of people to participate and takes at least two days or even one week. Obviously, the automatic testing device provided by the application greatly improves the testing efficiency, saves the consumption of manpower and material resources, can obtain a large amount of testing data in a short time, and provides great convenience and support for researchers to analyze and process data.
In addition, the automatic testing device provided by the application gets through the business process and the interface between the platforms of the space-air cooperative remote sensing system, and lays a foundation for developing an outfield test.
In the space-to-air cooperative remote sensing system automatic testing device that faces that this application provided, each territory load carries on the platform like satellite, dirigible, aviation aircraft, unmanned aerial vehicle quantity can increase according to the actual demand, and the load type and the quantity that each platform carried on also can carry out dynamic adaptation. Due to the complexity of the system and the increasing expansion of the space-time cooperative remote sensing system, the system construction method provided by the invention can further refine the task requirements, design corresponding system configurations for different tasks, configure reasonable load resources and ensure that the optimal ground observation effect is achieved with the least system overhead.
According to an embodiment of the application, the automatic testing device of the space-time-to-air-ground cooperative remote sensing system comprises a tested satellite, an airship, an unmanned aerial vehicle, a ground system and a testing and monitoring management subsystem, wherein the structure, the function and the interface of each subsystem are shown in figures 1-4. The system comprises a test and monitoring management subsystem, a data management subsystem, a monitoring management subsystem, a network switch and other auxiliary test units, wherein the test and monitoring management subsystem consists of a satellite, an airship, an unmanned aerial vehicle data management system, a monitoring management system, a network switch and other auxiliary test units and mainly completes automatic test and monitoring management of states, data and the like of a prototype system; the time system equipment consists of an NTP time network server, a pulse-per-second distributor and a navigation receiver, mainly completes time alignment of all platforms of the whole system, ensures time unification of all units of the system, and provides a unified time standard for normal work and subsequent test index calculation of the system. Each platform simulation verification environment and monitoring and test management subsystem are mainly connected with an OC control bus through a CAN bus, so that the functions of load control, state monitoring, key information downloading and the like are realized; and the system is connected with the time system equipment through a 1PPS radio frequency line and is matched with time information broadcast by a CAN bus to complete the functions of time synchronization and the like of the system.
The automatic testing device provided by one embodiment of the application can complete seven testing subjects which are respectively as follows: the method comprises the following steps of ground task planning, task instruction annotation, satellite wide area search and online autonomous planning, airship key area staring observation, unmanned aerial vehicle accurate confirmation, multi-source data fusion in an airship and intelligent data product distribution. According to the automatic testing device provided by one embodiment of the application, seven testing subjects are automatically executed in sequence from the user requirement, and then the closed-loop workflow of issuing the image products to the user terminal is completed.
According to one embodiment of the application, key indexes of the space-to-air cooperative remote sensing system which can be completed by the testing device comprise: the ground monitoring management system automatically completes index calculation and display through collected and recorded key node time marks and data information.
Through verification, the whole process of drawing image products from user requirements and displaying index test values on a ground monitoring management system is averagely 5-10 minutes, and more than ten people are required to participate in the whole process of manually completing the test and at least the time of more than two days or even one week is required.
All platforms of the space-time cooperative remote sensing system carry intelligent processing loads as required, on one hand, the online processing of self images is completed, on the other hand, data from other platforms and self images are subjected to multi-source data fusion, but specific satellite or airship is not given in detail as a core node to complete the key work of the online processing of the data. In the automatic testing device that this application provided, through design and solidification to the test flow, regard the airship node as automatic testing system's core node, because this node is located satellite and unmanned aerial vehicle, ground system's intermediate level, can realize the nimble communication with other territorial platforms, gaze observation is because long time in addition, the data bulk of production is big, the processing degree of difficulty is big, transmit to other platforms and handle and need consume more resources, and with the satellite, unmanned aerial vehicle data transmission carries out data processing to the airship platform and compares and can save more communication resources with platforms such as airship platform data transmission to satellites, consequently, automatic testing system proposes multisource data and fuses at the ship and handles, and based on this thinking system automatic testing has been accomplished.
In the automatic testing device provided by the application, because many indexes are all related to time, all equipment in the system must have high time consistency, on one hand, the whole automatic testing system can be ensured to work according to a specified time sequence, on the other hand, an index testing value calculated based on time scale information can have high correctness and reliability, in the automatic testing device, all the systems adopt a high-precision time service receiver to carry out unified time service and 1pps signals to carry out time service, the time sequence of the whole automatic testing device is highly consistent, except that the ground system carries out software time service by an operating system, the time precision is in the ms level, and other platforms reach the ns level.
In the automatic testing device that this application provided, satellite, dirigible, unmanned aerial vehicle's data management system mainly realizes following function: (1) load instruction control and analysis in the platform mainly receive ground task instructions, translate the instructions into load control instructions, and issue and control the load to execute corresponding actions; (2) load states are summarized and downloaded, each load in the platform reports the working state of the load through a CAN bus at the frequency of 1Hz, if the camera load state comprises normal/fault, camera shooting count, image slice number, camera exposure position and the like, the data management system receives all load state information of the platform and formats the data, the load state information is transmitted to a ground system through a platform communication unit and is further transmitted to the ground monitoring management system through a LAN (local area network) to be displayed; (3) receiving and controlling a load to send process data to a ground monitoring management system, wherein the load process data comprises time scale data, data size, event information, self-calculated precision information and the like for index calculation, and the data management system controls the load to send the data to a ground communication unit through a communication unit according to a system time sequence and forwards the data to the ground monitoring management system for index calculation; (4) the data management system receives time service and other information sent by time management equipment, broadcasts the time service and other information to all equipment in the platform through a CAN bus of the platform, the CAN bus adopts a 2.0 version standard frame, and the Baud rate is 500kbit/s. (5) And the OC control function and the data management system are also responsible for controlling the on-off state of the response load through the OC switch according to the test time sequence so as to ensure that the devices do not generate interference with each other.
In the automatic testing device that this application provided, ground monitoring management system provides the show platform for the execution and the control of test task, possesses functions such as experimental progress control, each platform load state real-time supervision and image product and the real-time show of test index, includes: (1) all load states of each platform are monitored, load state information collected and issued by each platform data management system is received and analyzed, and all equipment states are respectively displayed by the sub-platforms, so that testers can master the overall condition of the system; (2) the process image products are displayed in real time, the multi-source fusion data images of the airship platform and the image products generated after ground processing are transmitted to a ground monitoring management system through a communication unit and displayed in real time, and testers can quickly check the data processing conditions of all platforms; (3) and calculating key indexes, wherein the ground monitoring management system receives load process data of each platform, including time scale data, data size, event information, self-calculated precision information and the like for index calculation, calculates an index test value according to an agreed algorithm, and displays the index test value on an interface in a real-time graphical manner.
It should be understood that although the specification has been described in terms of various embodiments, not every embodiment includes every single embodiment, and such description is for clarity purposes only, and it will be appreciated by those skilled in the art that the specification as a whole can be combined as appropriate to form additional embodiments as will be apparent to those skilled in the art.
The above description is only an exemplary embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any equivalent alterations, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of this application shall fall within the scope of this application.
Claims (10)
1. An automatic testing device of a space-air-ground cooperative remote sensing system is used for automatically testing a tested system, wherein the tested system is a ground simulation verification system of the space-air-ground cooperative remote sensing system, and the tested system comprises: a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem and a ground platform simulation verification subsystem,
wherein, the automatic test device includes:
the test and monitoring management subsystem comprises: the system comprises a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system and a ground monitoring management system;
the time system equipment is used for completing the time alignment of all units in the tested system and the automatic testing device;
wherein, the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system are respectively connected to the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem, the ground platform simulation verification subsystem is connected to the ground monitoring management system,
wherein the time system equipment transmits the satellite time service information to a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem, an unmanned aerial vehicle platform ground simulation verification subsystem, a ground platform simulation verification subsystem and a ground monitoring management system,
the system comprises a satellite data management system, an airship data management system and an unmanned aerial vehicle data management system, wherein the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system are used for respectively receiving load state information reported by each load in a satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem, forwarding the reported load state information to a ground monitoring management system, and the ground monitoring management system performs index calculation on the load state information, acquires an index test value and displays the index test value in real time.
2. The automatic test equipment of claim 1 wherein the time-line devices comprise an NTP time-network server, a pulse-per-second distributor, a navigation receiver,
the navigation receiver receives the navigation signal and transmits the satellite time service information to a satellite data management system, an airship data management system, an unmanned aerial vehicle data management system and an NTP time network server through a network switch,
the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system broadcast and distribute satellite time service information to all load units of the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem,
the NTP time network server is connected to the ground platform simulation verification subsystem and the ground monitoring management system,
the navigation receiver is also connected to a satellite platform ground simulation verification subsystem, an airship platform ground simulation verification subsystem and an unmanned aerial vehicle platform ground simulation verification subsystem through a radio frequency line and a second pulse distributor, and the time synchronization function is completed in a matching mode.
3. The automatic test equipment of claim 1 wherein the payload status information includes a test time stamp and critical data.
4. The automatic test device of claim 1, wherein the test indicators of the automatic test device include data transmission rate, packet loss rate, task planning time, co-observation positioning accuracy, multi-source data fusion time, data distribution time, and task maximum response time.
5. The automatic test device of claim 1, wherein the test and monitor management subsystem further comprises an auxiliary test unit, the auxiliary test unit being a network switch.
6. The automatic test device of claim 1,
the satellite platform ground simulation verification subsystem comprises a satellite-borne camera controller, a task planning system, a data processing system and a communication unit;
the ground simulation verification subsystem of the airship platform comprises an airborne camera controller, a data processing system and a communication unit;
the ground simulation verification subsystem of the unmanned aerial vehicle comprises an airborne camera controller, a data processing system and a communication unit;
the ground simulation verification subsystem comprises a task planning system, data exchange equipment, a user terminal and a communication unit.
7. The automatic test device of claim 1,
the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem are respectively connected to the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system through the CAN bus and the OC control bus.
8. The automatic test device of claim 1, wherein the ground platform emulation verification subsystem is connected to the ground monitoring management system via a LAN network.
9. A testing method of a space-time, air-ground cooperative remote sensing system, which is tested by using the automatic testing device of any one of claims 1 to 8, the testing method comprising:
s1: completing the power-on self-test and time alignment of the automatic test device;
s2: the system to be tested automatically executes the service process and simultaneously performs the automatic test process of the automatic test device,
in the process that the tested system automatically executes the service flow, all the loads in the satellite platform ground simulation verification subsystem, the airship platform ground simulation verification subsystem and the unmanned aerial vehicle platform ground simulation verification subsystem respectively report load state information to the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system,
the satellite data management system, the airship data management system and the unmanned aerial vehicle data management system transmit the load state information to the ground monitoring management system,
and the ground monitoring management system performs index calculation on the load state information, acquires an index test value and displays the index test value in real time.
10. A computer readable storage medium having stored thereon software instructions that, when executed, implement the method of claim 9.
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