CN113794527A - Deep space detection surrounding device adaptive frame length wired telemetering and forwarding system and self-checking method - Google Patents
Deep space detection surrounding device adaptive frame length wired telemetering and forwarding system and self-checking method Download PDFInfo
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Abstract
The invention provides a deep space exploration surrounding device adaptive frame length wired telemetering and forwarding system and a self-checking method, wherein the system comprises: an interface module: receiving long and short frame hybrid telemetering data sent by a deep space detection surrounding device integrated electronic processor and sending the data to a data processing module; a data processing module: receiving long-frame and short-frame mixed downlink telemetering data of a deep space detection surrounding device integrated electronic processor, and carrying out long-frame and short-frame classification extraction processing to obtain long-frame telemetering data and short-frame telemetering data; a network distribution module: the long frame telemetry data and the short frame telemetry data are sent to a telemetry receiving device, respectively. The method can meet the requirements of receiving, classifying, extracting and forwarding the wired telemetry of the long frame and the short frame of the deep space detection surrounding device in a mixed downloading mode, and the wired telemetry channel constructed on the basis of the method can be used as a contrast channel of the radio frequency wireless telemetry channel in a ground test, so that the method is beneficial to verifying the correctness of the radio frequency wireless telemetry channel and assisting in monitoring the working state of the deep space detection surrounding device.
Description
Technical Field
The invention relates to the technical field of spacecraft testing, in particular to a deep space sounding surround device adaptive frame length wired telemetering and forwarding system and a self-checking method.
Background
In a deep space probe and a near-earth spacecraft, a wired telemetry channel is a telemetry channel for ground test, plays an important role in the ground test of the spacecraft, and can provide continuous downlink telemetry data in test scenes of radio frequency wireless telemetry interruption such as a spacecraft radio silence state, a downlink radio frequency telemetry channel switching test, a downlink radio frequency telemetry bit error rate test, a downlink radio frequency telemetry channel fault and the like so as to monitor the working state of the spacecraft; and in the deep space probe with the radio frequency wireless telemetering transmission rate designed to be multi-gear adjustable to adapt to different on-orbit link states, the wired telemetering channel keeps the fastest telemetering transmission rate and the fastest updating frequency of each telemetering channel, and can be used as a contrast channel of the radio frequency wireless telemetering channel in a ground test to verify the correctness of the radio frequency wireless telemetering channel and assist in monitoring the working state of the deep space probe.
Patent document CN202085171U (application number: 201120085235.7) discloses "a universal satellite-ground wired interface test system, which includes a main test device, an interface adapter, a drop-off electrical connector interface cable, a CAN bus interface cable, and an inter-device connection cable, and is used for collecting, processing, analyzing, storing, and displaying a satellite-ground wired analog quantity signal, an RS422 signal, and a CAN bus signal, and is not suitable for receiving and processing spacecraft wired telemetry.
Patent document CN101354829A (application number: 200810222233.0) discloses a satellite telemetry data transmission method, which comprises the following steps: (l) The housekeeping center computer sends the collected telemetering data of each lower computer of the whole satellite to a housekeeping data storage module; (2) the star affair data storage module receives, formats and stores the telemetering data; (3) under the control of a ground instruction, the housekeeping data storage module sends the stored telemetering data to the data downlink transmission module; (4) the data downlink transmission module transmits the telemetering data in a downlink manner; the invention relates to a design of a satellite on-satellite telemetry data acquisition and transmission method, which is not suitable for wired telemetry receiving and processing of a deep space probe.
Patent document CN102542002A (application number: 201110407247.1) discloses a satellite telemetry data processing system and an implementation method thereof, including a log module, a pointer container module, a memory management module, a basic data management module, a configuration information management module, an index table management module, a data preprocessing module, a processing method module, a data analysis module and a data initialization and management module.
Patent document CN111091697A (application number: 201911196353.2) discloses a processing system of telemetry data, relating to the technical field of telemetry data processing. The processing system of the telemetering data comprises a telemetering receiver and a telemetering upper computer which is in communication connection with the telemetering receiver; the telemetering receiver is used for receiving telemetering data sent by the telemetering receiving antenna and sending the telemetering data to the telemetering upper computer in real time; the telemetering upper computer includes: the device comprises an acquisition module, an extraction module and a processing module; the acquisition module is used for acquiring the telemetering data of the telemetering system in real time; the extraction module is used for extracting first effective data in the telemetering data according to a preset first zone bit; the telemetry data comprises at least two first flag bits; and the processing module is used for processing the first effective data to obtain data information.
The length of a telemetry frame of a near-earth spacecraft is a fixed value, a wired telemetry forwarding device can only receive and process the telemetry frame with a fixed length, in the design of some deep space detectors, in order to adapt to the complex ground communication link state and the working mode of a measurement and control data transmission integrated transmitter, a deep space detector integrated electronic processor is designed with two different telemetry frame lengths, a wired telemetry channel is a long-short frame mixed mode, and the traditional wired telemetry forwarding device cannot meet the wired telemetry receiving and processing requirements of the long-short frame mixed mode of the deep space detector.
At present, no other similar related technology is disclosed or reported, and other similar data at home and abroad are not collected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a deep space sounding surround device adaptive frame length wired telemetering and forwarding system and a self-checking method.
The invention provides a deep space exploration surround device adaptive frame length wired telemetering and forwarding system, which comprises:
an interface module: receiving long and short frame hybrid telemetering data sent by a deep space detection surrounding device integrated electronic processor and sending the data to a data processing module;
a data processing module: receiving long-frame and short-frame mixed downlink telemetering data of a deep space detection surrounding device integrated electronic processor, and carrying out long-frame and short-frame classification extraction processing to obtain long-frame telemetering data and short-frame telemetering data;
a network distribution module: the long frame telemetry data and the short frame telemetry data are sent to a telemetry receiving device, respectively.
Preferably, the interface module employs: and receiving the long-frame and short-frame mixed telemetry data sent by the deep space sounding surround device integrated electronic processor in an asynchronous communication mode by utilizing an RS422 serial interface.
Preferably, the data processing module employs:
module M1: presetting a starting sequence of a telemetry frame, a long frame length, a short frame length, position information of a frame length type identifier in the telemetry frame, a hexadecimal value of the long frame type identifier and a hexadecimal value of the short frame type identifier;
module M2: after receiving the long and short frame mixed downlink telemetering data, the data processing module searches the starting boundary of the telemetering frame in the data according to a preset telemetering frame starting sequence;
module M3: positioning a frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: and judging the frame length type according to the hexadecimal value of the type identifier, extracting telemetry frame data according to the frame length corresponding to the type identifier, and sending the telemetry frame data to a network distribution module after classification and extraction are finished.
Preferably, in the data processing module, the long-frame and short-frame mixed original telemetry data before processing is stored locally in a data file form according to a receiving sequence, and the long-frame telemetry data and the short-frame telemetry data after classification and extraction are stored in the data file form respectively.
Preferably, the network distribution module employs: and communicating with the telemetering receiving equipment through the local area network, and respectively sending the long frame telemetering data and the short frame telemetering data to the telemetering receiving equipment.
Preferably, the network distribution model includes a long frame distribution unit and a short frame distribution unit;
the long frame distribution unit and the short frame distribution unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetering receiving equipment wants to acquire long-frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and a data request message is sent after the TCP/IP connection is established; after receiving a data request of the client equipment, the network distribution module continuously sends the data request to the client equipment when receiving the long-frame telemetering data of the data processing module; when the back-end telemetering receiving equipment wants to acquire short frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to the short frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent, and after the network distribution module receives the data request of the client equipment, the data request message is continuously sent to the client equipment when the short frame telemetering data of the data processing module is received.
Preferably, the analog source module generates analog telemetry data frames and outputs them out through the interface module in an asynchronous communication manner using the RS422 serial interface.
Preferably, the analog source module generates the analog telemetry data frame using: generating a telemetry data frame with a single frame length, alternately generating two telemetry data frames with two frame lengths and/or loading a locally stored data file.
Preferably, a real-time operating mode and a playback operating mode are included;
the real-time working mode comprises the following steps: the method comprises the steps that long frame telemetering data frames and short frame telemetering data frames sent by a deep space detection surrounding device integrated electronic processor are received in real time through an interface module, the long frames and the short frames are sent to a telemetering receiving device through a network distribution module and a local area network after being subjected to classified extraction, meanwhile, original telemetering data before the long frames and the short frames are subjected to classified extraction are stored locally in a data file form according to a receiving sequence, and the long frame telemetering data and the short frame telemetering data after the classified extraction are stored locally in the data file form respectively;
the playback mode of operation includes: when the large loop playback mode is selected, an RS422 output port of an interface module is required to be connected with an RS422 input port of the interface module through a self-closed loop cable, a simulation source module loads and outputs a long-frame and short-frame mixed original telemetering data file stored in a real-time mode, the long-frame and short-frame mixed original telemetering data file is transmitted to a data processing module through the self-closed loop cable and the interface module, and the long-frame mixed original telemetering data file is classified, extracted and processed and then transmitted to a telemetering receiving device through a network distribution module and a local area network; when a network playback mode is selected, the long frame distribution unit and the short frame distribution unit of the network distribution module respectively read the long frame telemetering data file and the short frame telemetering data file which are stored in a real-time mode and extracted in a classified manner, and send the long frame telemetering data file and the short frame telemetering data file to telemetering receiving equipment through a local area network according to the set distribution rate.
According to the self-checking method of the deep space detection surrounding device adaptive frame length wired telemetering and forwarding system provided by the invention, the deep space detection surrounding device adaptive frame length wired telemetering and forwarding system is utilized to execute the following steps:
step S1: the input port and the output port of the interface module are connected through a self-closing ring cable;
step S2: establishing TCP/IP connection between two receiving channels of the telemetering receiving equipment and a long frame distribution unit and a short frame distribution unit respectively, and sending a data application;
step S3: setting a starting sequence of a telemetering frame, a long frame length and a short frame length in a data processing module, marking the position information of the telemetering frame by a frame length type, a hexadecimal value of a long frame type mark and a hexadecimal value parameter of a short frame type mark, and establishing a telemetering receiving processing state;
step S4: setting simulation telemetering data parameters of the simulation source module, corresponding to working parameters of the data processing module, and outputting simulation telemetering data frames with alternate long and short frames;
step S5: and confirming that the two receiving channels of the telemetering receiving equipment respectively receive the long frame telemetering data and the short frame telemetering data, and the format of the telemetering frame is analyzed normally.
Compared with the prior art, the invention has the following beneficial effects: the deep space detection surrounding device adaptive frame length wired telemetering forwarding device can meet the receiving, classifying, extracting and forwarding requirements of deep space detection surrounding device long and short frame mixed downloading wired telemetering, and a wired telemetering channel constructed on the basis of the deep space detection surrounding device adaptive frame length wired telemetering forwarding device can be used as a contrast channel of a radio frequency wireless telemetering channel in ground test, is beneficial to verifying the correctness of the radio frequency wireless telemetering channel, and assists in monitoring the working state of the deep space detector.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a block diagram of a wired telemetry repeater for adaptive frame length of a deep space sounding surround device according to the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
According to the present invention, there is provided a deep space sounding surround device adaptive frame length wired telemetry forwarding system, as shown in fig. 1, including:
an interface module: receiving long and short frame hybrid telemetering data sent by a deep space detection surrounding device integrated electronic processor and sending the data to a data processing module;
a data processing module: receiving long-frame and short-frame mixed downlink telemetering data of a deep space detection surrounding device integrated electronic processor, and carrying out long-frame and short-frame classification extraction processing to obtain long-frame telemetering data and short-frame telemetering data;
a network distribution module: the long frame telemetry data and the short frame telemetry data are sent to a telemetry receiving device, respectively.
Specifically, the interface module employs: and receiving the long-frame and short-frame mixed telemetry data sent by the deep space sounding surround device integrated electronic processor in an asynchronous communication mode by utilizing an RS422 serial interface.
Specifically, the data processing module employs:
module M1: presetting a starting sequence of a telemetry frame, a long frame length, a short frame length, position information of a frame length type identifier in the telemetry frame, a hexadecimal value of the long frame type identifier and a hexadecimal value of the short frame type identifier;
module M2: after receiving the long and short frame mixed downlink telemetering data, the data processing module searches the starting boundary of the telemetering frame in the data according to a preset telemetering frame starting sequence;
module M3: positioning a frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: and judging the frame length type according to the hexadecimal value of the type identifier, extracting telemetry frame data according to the frame length corresponding to the type identifier, and sending the telemetry frame data to a network distribution module after classification and extraction are finished.
Specifically, in the data processing module, the long-frame and short-frame mixed original telemetering data before processing is locally stored in a data file form according to a receiving sequence, and the long-frame telemetering data and the short-frame telemetering data after classification and extraction are respectively stored in the data file form.
Specifically, the network distribution module employs: and communicating with the telemetering receiving equipment through the local area network, and respectively sending the long frame telemetering data and the short frame telemetering data to the telemetering receiving equipment.
Specifically, the network distribution model includes a long frame distribution unit and a short frame distribution unit; when the remote sensing receiving device communicates with the back-end remote sensing receiving device through the local area network, the TCP/IP protocol is followed;
the long frame distribution unit and the short frame distribution unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetering receiving equipment wants to acquire long-frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and a data request message is sent after the TCP/IP connection is established; after receiving a data request of the client equipment, the network distribution module continuously sends the data request to the client equipment when receiving the long-frame telemetering data of the data processing module; when the back-end telemetering receiving equipment wants to acquire short frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to the short frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent, and after the network distribution module receives the data request of the client equipment, the data request message is continuously sent to the client equipment when the short frame telemetering data of the data processing module is received.
Specifically, the analog source module generates analog telemetry data frames and outputs them out through the interface module in an asynchronous communication manner using the RS422 serial interface.
Specifically, the analog source module supports three telemetry data frame generation modes, the first mode is to generate a telemetry data frame with a single frame length, the second mode is to alternately generate telemetry data frames with two frame lengths, and the third mode is to load a locally stored data file.
Specifically, a real-time operation mode and a playback operation mode are included;
the real-time working mode comprises the following steps: the method comprises the steps that long frame telemetering data frames and short frame telemetering data frames sent by a deep space detection surrounding device integrated electronic processor are received in real time through an interface module, the long frames and the short frames are sent to a telemetering receiving device through a network distribution module and a local area network after being subjected to classified extraction, meanwhile, original telemetering data before the long frames and the short frames are subjected to classified extraction are stored locally in a data file form according to a receiving sequence, and the long frame telemetering data and the short frame telemetering data after the classified extraction are stored locally in the data file form respectively;
the playback mode of operation includes: when the large loop playback mode is selected, an RS422 self-checking data output port and a telemetry data input port are connected through a self-closed loop cable, a simulation source module loads and outputs a long-frame and short-frame mixed original telemetry data file stored in a real-time mode, the long-frame and short-frame mixed original telemetry data file is transmitted to a data processing module through the self-closed loop cable and an interface module, and the long-frame mixed original telemetry data file is classified, extracted and processed and then transmitted to a telemetry receiving device through a network distribution module and a local area network; when a network playback mode is selected, the long frame distribution unit and the short frame distribution unit of the network distribution module respectively read the long frame telemetering data file and the short frame telemetering data file which are stored in a real-time mode and extracted in a classified manner, and send the long frame telemetering data file and the short frame telemetering data file to telemetering receiving equipment through a local area network according to the set distribution rate.
According to the self-checking method of the deep space detection surrounding device adaptive frame length wired telemetering and forwarding system provided by the invention, the deep space detection surrounding device adaptive frame length wired telemetering and forwarding system is utilized to execute the following steps:
step S1: the RS422 output port of the interface module is connected with the RS422 input port of the interface module through a self-closing ring cable;
step S2: connecting the telemetering receiving equipment with the system through a local area network, establishing TCP/IP connection between two receiving channels of the telemetering receiving equipment and a long frame distribution unit and a short frame distribution unit respectively, and sending a data application;
step S3: setting a starting sequence of a telemetering frame, a long frame length and a short frame length in a data processing module, marking the position information of the telemetering frame by a frame length type, a hexadecimal value of a long frame type mark and a hexadecimal value parameter of a short frame type mark, and establishing a telemetering receiving processing state;
step S4: setting simulation telemetering data parameters of the simulation source module, corresponding to working parameters of the data processing module, and outputting simulation telemetering data frames with alternate long and short frames;
step S5: confirming that two receiving channels of the telemetering receiving equipment respectively receive the long frame telemetering data and the short frame telemetering data, and the format of the telemetering frame is analyzed normally;
step S6: and finishing the execution of the self-checking flow.
Example 2
Example 2 is a preferred example of example 1
The invention discloses a deep space exploration surrounding device adaptive frame length wired telemetering and forwarding device which comprises an interface module, a data processing module, a network distribution module and an analog source module. The method can meet the requirements of receiving, classifying, extracting and forwarding of long and short frame hybrid download wired telemetry of the deep space detection surrounding device, and the wired telemetry channel constructed on the basis of the method can be used as a contrast channel of the radio frequency wireless telemetry channel in ground test, thereby being beneficial to verifying the correctness of the radio frequency wireless telemetry channel and assisting in monitoring the working state of the deep space detector.
As shown in fig. 1, a deep space sounding surround device adaptive frame length wired telemetry forwarding device includes:
an interface module: receiving long and short frame mixed telemetering data sent by the deep space detection surrounding device integrated electronic processor through an RS422 serial interface, and sending the long and short frame mixed telemetering data to a data processing module; and can receive the data of the analog source module and output the data through the RS422 serial interface.
The RS422 interface characteristic adopted by the interface module conforms to ANSI/TIA/EIA-422 standard specification, the communication mode between the RS422 interface characteristic and the deep space exploration surround comprehensive electronic processor is an asynchronous communication mode, the communication speed is 115200bps, when multi-byte telemetering frame data are transmitted, the highest byte data are transmitted firstly, then the second highest byte data are transmitted, finally the lowest byte data are transmitted, and each byte transmits the low bit firstly and then transmits the high bit.
A data processing module: and receiving long-frame and short-frame mixed downlink telemetering data of the deep space detection surrounding device integrated electronic processor, and carrying out long-frame and short-frame classified extraction.
The telemetry frame length output by the deep space exploration surround device integrated electronic processor comprises 1024 bytes and 256 bytes, wherein the 10 th byte is a frame length type identifier, the hexadecimal value of the type identifier is 0x00 to represent a short frame, the hexadecimal value of the type identifier is 0xFF to represent a long frame, and the frame formats of the short frame telemetry and the long frame telemetry are shown in tables 1 and 2.
TABLE 1
TABLE 2
The data processing module can perform long-frame and short-frame classification extraction on long-frame and short-frame mixed telemetering data downloaded by the deep space detection surrounding device integrated electronic processor, and the extraction method comprises the following steps: the method comprises the steps that a starting sequence, a long frame length and a short frame length of a telemetering frame are preset, position information of a frame length type identifier in the telemetering frame, a hexadecimal value of the long frame type identifier and a hexadecimal value of the short frame type identifier are received by a data processing module, a starting boundary of the telemetering frame is searched in data according to the preset telemetering frame starting sequence after long and short frame mixed telemetering data are received, then the frame length type identifier is positioned according to the position information of the frame length type identifier, the frame length type is judged according to the hexadecimal value of the type identifier, telemetering frame data are extracted according to the frame length corresponding to the type identifier, and the telemetering frame data are sent to a network distribution module after classification and extraction are completed. The data processing module can locally store the long and short frame mixed original telemetering data before processing according to the receiving sequence, and can store the long frame telemetering data and the short frame telemetering data after processing in a classified manner.
A network distribution module: and communicating with the telemetering receiving equipment through the local area network, and respectively sending the long frame telemetering data and the short frame telemetering data to the telemetering receiving equipment.
The network distribution module comprises a long frame distribution unit and a short frame distribution unit, and when the network distribution module is communicated with the back-end telemetering and receiving equipment through a local area network, the network distribution module follows a TCP/IP protocol. The long frame distribution unit and the short frame distribution unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode, if the back-end telemetering receiving equipment wants to acquire long frame telemetering data, the long frame distribution unit initiates a TCP/IP connection request to the IP address corresponding to the long frame distribution unit in a client mode, and sends a data request message after the TCP/IP connection is established, and after the network distribution module receives the data request of the client equipment, the network distribution module continuously sends the data request message to the client equipment when receiving the long frame telemetering data of the data processing module; if the back-end telemetering receiving equipment wants to acquire the short frame telemetering data, a TCP/IP connection request is initiated to the IP address corresponding to the short frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent, and after the network distribution module receives the data request of the client equipment, the data request message is continuously sent to the client equipment when the short frame telemetering data of the data processing module is received.
A simulation source module: used for generating analog telemetry data frames and output outwards through the interface module.
The analog source module supports three telemetry data frame generation modes, wherein the first mode is to generate a telemetry data frame with a single frame length, the second mode is to alternately generate telemetry data frames with two frame lengths, and the third mode is to load a locally stored data file.
The device has a self-checking function, and the self-checking steps are as follows:
s1, connecting an RS422 output port of the device with an RS422 input port through a self-closing ring cable;
s2, connecting the telemetering receiving equipment with the device through a local area network, establishing TCP/IP connection between two receiving channels of the telemetering receiving equipment and a long frame distribution unit and a short frame distribution unit of the device respectively, and sending a data application;
s3, setting parameters such as the starting sequence, the long frame length and the short frame length of the telemetering frame, the position information of the frame length type identifier in the telemetering frame, the hexadecimal value of the long frame type identifier and the hexadecimal value of the short frame type identifier in the data processing module of the device, and establishing a telemetering receiving processing state;
s4, setting the simulation telemetering data parameters of the simulation source module, corresponding to the working parameters of the data processing module, and outputting the simulation telemetering data frames with alternate long and short frames;
s5, confirming that the two receiving channels of the telemetering receiving equipment respectively receive the long frame telemetering data and the short frame telemetering data, and the format of the telemetering frame is analyzed normally;
and S6, finishing the execution of the self-checking flow of the device.
The device has two working modes of a real-time mode and a playback mode. In a real-time mode, the device receives long and short frame telemetering data frames sent by a deep space detection surrounding device integrated electronic processor in real time through an interface module, after long frame and short frame classification extraction, the long frame and short frame telemetering data frames are sent to a telemetering receiving device through a network distribution module and a local area network, original telemetering data before long and short frame classification extraction are stored locally in a data file form according to a receiving sequence, and long frame telemetering data and short frame telemetering data after classification extraction are stored locally in a data file form respectively. The playback mode is to carry on playback processing and network distribution to the data received in real time, support playback mode and network playback mode of the large loop, when the playback mode of the large loop is chosen, need to link RS422 self-checking data output port and telemetering data input port of this apparatus through the self-closed loop cable, the analog source module loads and outputs the original telemetering data file of long and short frames mixed stored in the real-time mode, through the self-closed loop cable and interface module to the data processing module, after classifying and extracting and processing, send to the telemetering receiving arrangement through network distribution module and local area network; when a network playback mode is selected, the long frame distribution unit and the short frame distribution unit of the network distribution module respectively read the long frame telemetering data file and the short frame telemetering data file which are stored in a real-time mode and extracted in a classified manner, and send the long frame telemetering data file and the short frame telemetering data file to telemetering receiving equipment through a local area network according to the set distribution rate.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A deep space sounding surround adaptive frame size wired telemetry forwarding system, comprising:
an interface module: receiving long and short frame hybrid telemetering data sent by a deep space detection surrounding device integrated electronic processor and sending the data to a data processing module;
a data processing module: receiving long-frame and short-frame mixed downlink telemetering data of a deep space detection surrounding device integrated electronic processor, and carrying out long-frame and short-frame classification extraction processing to obtain long-frame telemetering data and short-frame telemetering data;
a network distribution module: the long frame telemetry data and the short frame telemetry data are sent to a telemetry receiving device, respectively.
2. The deep space sounding surround device adaptive frame length wired telemetry forwarding system of claim 1, wherein the interface module employs: and receiving the long-frame and short-frame mixed telemetry data sent by the deep space sounding surround device integrated electronic processor in an asynchronous communication mode by utilizing an RS422 serial interface.
3. The deep space sounding surround device adaptive frame length wired telemetry forwarding system of claim 1, wherein the data processing module employs:
module M1: presetting a starting sequence of a telemetry frame, a long frame length, a short frame length, position information of a frame length type identifier in the telemetry frame, a hexadecimal value of the long frame type identifier and a hexadecimal value of the short frame type identifier;
module M2: after receiving the long and short frame mixed downlink telemetering data, the data processing module searches the starting boundary of the telemetering frame in the data according to a preset telemetering frame starting sequence;
module M3: positioning a frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: and judging the frame length type according to the hexadecimal value of the type identifier, extracting telemetry frame data according to the frame length corresponding to the type identifier, and sending the telemetry frame data to a network distribution module after classification and extraction are finished.
4. The system according to claim 1, wherein in the data processing module, the long and short frames before processing are mixed with the original telemetry data and stored locally in a data file form according to the receiving sequence, and the long frame telemetry data and the short frame telemetry data after classification and extraction processing are stored in a data file form respectively.
5. The deep space sounding surround device adaptive frame length wired telemetry forwarding system of claim 1, wherein the network distribution module employs: and communicating with the telemetering receiving equipment through the local area network, and respectively sending the long frame telemetering data and the short frame telemetering data to the telemetering receiving equipment.
6. The deep space sounding surround device adaptive frame length wired telemetry forwarding system of claim 1, wherein the network distribution model includes a long frame distribution unit and a short frame distribution unit;
the long frame distribution unit and the short frame distribution unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetering receiving equipment wants to acquire long-frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and a data request message is sent after the TCP/IP connection is established; after receiving a data request of the client equipment, the network distribution module continuously sends the data request to the client equipment when receiving the long-frame telemetering data of the data processing module; when the back-end telemetering receiving equipment wants to acquire short frame telemetering data, a TCP/IP connection request is initiated to an IP address corresponding to the short frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent, and after the network distribution module receives the data request of the client equipment, the data request message is continuously sent to the client equipment when the short frame telemetering data of the data processing module is received.
7. The deep space exploration surround device adaptive frame length wired telemetry forwarding system according to claim 1, wherein the analog source module generates analog telemetry data frames and outputs the analog telemetry data frames through the interface module to the outside in an asynchronous communication mode by using an RS422 serial interface for device self-checking and data playback.
8. The deep space sounding surround device adaptive frame size wired telemetry forwarding system of claim 7, wherein the analog source module generates analog telemetry data frames employing: generating a telemetry data frame with a single frame length, alternately generating two telemetry data frames with two frame lengths and/or loading a locally stored data file.
9. The deep space exploration surround device adaptive frame length wired telemetry forwarding system according to claim 7 or 8, characterized by comprising a real-time operation mode and a playback operation mode;
the real-time working mode comprises the following steps: the method comprises the steps that long frame telemetering data frames and short frame telemetering data frames sent by a deep space detection surrounding device integrated electronic processor are received in real time through an interface module, the long frames and the short frames are sent to a telemetering receiving device through a network distribution module and a local area network after being subjected to classified extraction, meanwhile, original telemetering data before the long frames and the short frames are subjected to classified extraction are stored locally in a data file form according to a receiving sequence, and the long frame telemetering data and the short frame telemetering data after the classified extraction are stored locally in the data file form respectively;
the playback mode of operation includes: when the large loop playback mode is selected, an RS422 output port of an interface module is required to be connected with an RS422 input port of the interface module through a self-closed loop cable, a simulation source module loads and outputs a long-frame and short-frame mixed original telemetering data file stored in a real-time mode, the long-frame and short-frame mixed original telemetering data file is transmitted to a data processing module through the self-closed loop cable and the interface module, and the long-frame mixed original telemetering data file is classified, extracted and processed and then transmitted to a telemetering receiving device through a network distribution module and a local area network; when a network playback mode is selected, the long frame distribution unit and the short frame distribution unit of the network distribution module respectively read the long frame telemetering data file and the short frame telemetering data file which are stored in a real-time mode and extracted in a classified manner, and send the long frame telemetering data file and the short frame telemetering data file to telemetering receiving equipment through a local area network according to the set distribution rate.
10. A self-checking method for a deep space sounding surround adaptive frame length wired telemetry forwarding system, which is characterized in that the deep space sounding surround adaptive frame length wired telemetry forwarding system of any one of claims 1 to 9 is used for executing the following steps:
step S1: the input port and the output port of the interface module are connected through a self-closing ring cable;
step S2: establishing TCP/IP connection between two receiving channels of the telemetering receiving equipment and a long frame distribution unit and a short frame distribution unit respectively, and sending a data application;
step S3: setting a starting sequence of a telemetering frame, a long frame length and a short frame length in a data processing module, marking the position information of the telemetering frame by a frame length type, a hexadecimal value of a long frame type mark and a hexadecimal value parameter of a short frame type mark, and establishing a telemetering receiving processing state;
step S4: setting simulation telemetering data parameters of the simulation source module, corresponding to working parameters of the data processing module, and outputting simulation telemetering data frames with alternate long and short frames;
step S5: and confirming that the two receiving channels of the telemetering receiving equipment respectively receive the long frame telemetering data and the short frame telemetering data, and the format of the telemetering frame is analyzed normally.
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