CN113794527B - Adaptive frame length wired telemetry forwarding system and self-checking method for deep space exploration circulator - Google Patents
Adaptive frame length wired telemetry forwarding system and self-checking method for deep space exploration circulator Download PDFInfo
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Abstract
The application provides a deep space exploration surrounding device self-adaptive frame length wired telemetry forwarding system and a self-checking method, comprising the following steps: an interface module: long and short frame mixed telemetry data sent by a comprehensive electronic processor of the deep space exploration surrounding device are received and sent to a data processing module; and a data processing module: long-short frame mixed downlink telemetry data of a comprehensive electronic processor of the deep space exploration surrounding device are received, and long-short frame and short-frame classified extraction processing is carried out to obtain long-frame telemetry data and short-frame telemetry data; and a network distribution module: the long frame telemetry data and the short frame telemetry data are transmitted to a telemetry receiving device, respectively. The application can meet the receiving, classifying, extracting and forwarding requirements of the long-frame and short-frame mixed downloading wired telemetry of the deep space exploration circulator, and the wired telemetry channel constructed based on the application can be used as a contrast channel of a 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 exploration circulator.
Description
Technical Field
The application relates to the technical field of spacecraft testing, in particular to a deep space exploration surrounding device self-adaptive frame length wired telemetry forwarding system and a self-checking method.
Background
In the deep space probe and the near-earth spacecraft, the 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 error rate test, a downlink radio frequency telemetry channel fault and the like, so as to monitor the working state of the spacecraft; in the deep space probe with the radio frequency wireless telemetry transmission rate designed as multiple adjustable gears and suitable for different on-orbit link states, the wired telemetry channel keeps the fastest telemetry transmission rate and the fastest updating frequency of each telemetry channel, and can be used as a comparison channel of the radio frequency wireless telemetry channel in ground test for verifying the correctness of the radio frequency wireless telemetry channel and assisting 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 comprises a main test device, an interface adapter, a drop electric connector interface cable, a CAN bus interface cable and an inter-device connection cable, and is used for collecting, processing, analyzing, storing and displaying satellite-ground wired analog signals, RS422 signals and CAN bus signals, and is not suitable for spacecraft wired telemetry reception and processing.
Patent document CN101354829a (application number 200810222233.0) discloses a satellite telemetry data transmission method comprising the steps of: (l) The star service center computer sends the telemetry data of all the acquired lower computers of the whole star to the star service data storage module; (2) The star data storage module receives, formats and stores the telemetry data; (3) The satellite data storage module sends the stored telemetry data to the data downlink transmission module under the control of ground instructions; (4) The data downlink transmission module transmits the telemetry data in a downlink mode; the application relates to a design of a method for collecting and transmitting telemetry data on a satellite, which is not applicable to 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 its implementation method, which comprises 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 telemetry data processing system, and relates to the technical field of telemetry data processing. The telemetry data processing system comprises a telemetry receiver and a telemetry upper computer which is in communication connection with the telemetry 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 telemetry data of the telemetry system in real time; the extraction module is used for extracting first effective data in the telemetry 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.
In the design of some deep space probes, two different telemetry frame lengths are designed for adapting to the complex ground communication link state and the operation mode of a measurement and control data transmission integrated transmitter, a wired telemetry channel is a long and short frame mixed mode, and the wired telemetry forwarding device cannot meet the wired telemetry receiving and processing requirements of the long and short frame mixed mode of the deep space probes.
No description or report of other similar related technologies is found at present, and no other similar data at home and abroad are collected.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a deep space exploration surrounding device self-adaptive frame length wired telemetry forwarding system and a self-checking method.
The application provides a deep space exploration circulator self-adaptive frame length wired telemetry forwarding system, which comprises:
an interface module: long and short frame mixed telemetry data sent by a comprehensive electronic processor of the deep space exploration surrounding device are received and sent to a data processing module;
and a data processing module: long-short frame mixed downlink telemetry data of a comprehensive electronic processor of the deep space exploration surrounding device are received, and long-short frame and short-frame classified extraction processing is carried out to obtain long-frame telemetry data and short-frame telemetry data;
and a network distribution module: the long frame telemetry data and the short frame telemetry data are transmitted to a telemetry receiving device, respectively.
Preferably, the interface module adopts: and the RS422 serial interface is utilized to receive long and short frame mixed telemetry data sent by the comprehensive electronic processor of the deep space exploration surrounding device in an asynchronous communication mode.
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 telemetry data, the data processing module searches the starting boundary of the telemetry frame in the data according to a preset telemetry frame starting sequence;
module M3: locating the frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: 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 transmitting the telemetry frame data to a network distribution module after classification extraction is completed.
Preferably, in the data processing module, the pre-processing long-short frame mixed original telemetry data is 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 extraction processing are stored respectively in a data file form.
Preferably, the network distribution module employs: the long-frame telemetry data and the short-frame telemetry data are respectively transmitted to the telemetry receiving device through the local area network communication with the telemetry receiving device.
Preferably, the network distribution model includes a long frame distribution unit and a short frame distribution unit;
the long frame distributing unit and the short frame distributing unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetry receiving equipment wants to acquire long-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent; after receiving the data request of the client device, the network distribution module continuously sends the data request to the client device when receiving the long-frame telemetry data of the data processing module; when the back-end telemetry receiving device wants to acquire short-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to the short-frame distributing unit in a client mode, a data request message is sent after the TCP/IP connection is established, and after the network distributing module receives the data request of the client device, the data request is continuously sent to the client device when the short-frame telemetry data of the data processing module is received.
Preferably, the analog source module generates an analog telemetry data frame and outputs it out in an asynchronous communication manner via the interface module using the RS422 serial interface.
Preferably, the analog source module generates an analog telemetry data frame using: generating a single frame length telemetry data frame, alternately generating two types of frame lengths telemetry data frames and/or loading a locally stored data file.
Preferably, a real-time operation mode and a playback operation mode are included;
the real-time operation mode includes: the method comprises the steps of receiving long-frame and short-frame telemetry data frames sent by a comprehensive electronic processor of a deep space exploration surrounding device in real time through an interface module, carrying out long-frame and short-frame classified extraction, sending the long-frame and short-frame telemetry data frames to a telemetry receiving device through a network distribution module and a local area network, simultaneously carrying out local storage on original telemetry data before the long-frame classified extraction in a data file mode according to a receiving sequence, and carrying out local storage on the long-frame telemetry data and the short-frame telemetry data after the classified extraction in a data file mode respectively;
the playback operation mode includes: the real-time received data are subjected to playback processing and network distribution, wherein the playback processing and network distribution comprises a large loop playback mode and a network playback mode, 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-closing loop cable, an analog source module loads and outputs a long and short frame mixed original telemetry data file stored in a real-time mode, the long and short frame mixed original telemetry data file is transmitted to a data processing module through the self-closing loop cable and the interface module, and the data processing module is subjected to classification extraction processing and then is transmitted to a telemetry receiving device through a network distribution module and a local area network; when the 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 telemetry data file and the short-frame telemetry data file which are stored in the real-time mode and are extracted in a classified mode, and the long-frame telemetry data file and the short-frame telemetry data file are sent to telemetry receiving equipment through a local area network according to the set distribution rate.
According to the self-checking method of the deep space exploration circulator self-adaptive frame length wired telemetry forwarding system, the deep space exploration circulator self-adaptive frame length wired telemetry forwarding system is utilized to execute the following steps:
step S1: connecting an input port and an output port of the interface module through a self-closing loop cable;
step S2: establishing TCP/IP connection between two receiving channels of the telemetry receiving device and a long frame distributing unit and a short frame distributing unit respectively, and sending a data application;
step S3: setting a starting sequence of a telemetry frame, a long frame length and a short frame length in a data processing module, wherein a frame length type identifier is set in position information of the telemetry frame, a hexadecimal value of the long frame type identifier and hexadecimal value parameters of the short frame type identifier, and a telemetry receiving processing state is established;
step S4: setting analog telemetry data parameters of an analog source module, corresponding to working parameters of a data processing module, and outputting analog telemetry data frames with alternating long and short frames;
step S5: the two receiving channels of the confirmation telemetry receiving device respectively receive long-frame telemetry data and short-frame telemetry data, and the telemetry frame format is normal in analysis.
Compared with the prior art, the application has the following beneficial effects: the self-adaptive frame length wired telemetry forwarding device of the deep space exploration circulator can meet the receiving, classified extraction and forwarding requirements of wired telemetry downloaded by mixing long frames and short frames of the deep space exploration circulator, and the wired telemetry channel constructed based on the application can be used as a contrast channel of a radio frequency wireless telemetry channel in ground test, is beneficial to verifying the correctness of the radio frequency wireless telemetry channel and is beneficial to monitoring the working state of the deep space exploration circulator.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1 is a block diagram of a deep space probe circulator adaptive frame length wired telemetry forwarding device of the application.
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
Example 1
According to the application, as shown in fig. 1, the adaptive frame length wired telemetry forwarding system of the deep space exploration circulator comprises:
an interface module: long and short frame mixed telemetry data sent by a comprehensive electronic processor of the deep space exploration surrounding device are received and sent to a data processing module;
and a data processing module: long-short frame mixed downlink telemetry data of a comprehensive electronic processor of the deep space exploration surrounding device are received, and long-short frame and short-frame classified extraction processing is carried out to obtain long-frame telemetry data and short-frame telemetry data;
and a network distribution module: the long frame telemetry data and the short frame telemetry data are transmitted to a telemetry receiving device, respectively.
Specifically, the interface module employs: and the RS422 serial interface is utilized to receive long and short frame mixed telemetry data sent by the comprehensive electronic processor of the deep space exploration surrounding device in an asynchronous communication mode.
Specifically, the data processing module adopts:
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 telemetry data, the data processing module searches the starting boundary of the telemetry frame in the data according to a preset telemetry frame starting sequence;
module M3: locating the frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: 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 transmitting the telemetry frame data to a network distribution module after classification extraction is completed.
Specifically, in the data processing module, the pre-processing long and short frame mixed original telemetry data is 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 extraction processing are stored respectively in a data file form.
Specifically, the network distribution module employs: the long-frame telemetry data and the short-frame telemetry data are respectively transmitted to the telemetry receiving device through the local area network communication with the telemetry receiving device.
Specifically, the network distribution model comprises a long frame distribution unit and a short frame distribution unit; when communicating with the back-end telemetry receiving device through the local area network, the protocol of TCP/IP is followed;
the long frame distributing unit and the short frame distributing unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetry receiving equipment wants to acquire long-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent; after receiving the data request of the client device, the network distribution module continuously sends the data request to the client device when receiving the long-frame telemetry data of the data processing module; when the back-end telemetry receiving device wants to acquire short-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to the short-frame distributing unit in a client mode, a data request message is sent after the TCP/IP connection is established, and after the network distributing module receives the data request of the client device, the data request is continuously sent to the client device when the short-frame telemetry data of the data processing module is received.
Specifically, the analog source module generates an analog telemetry data frame and outputs it out in an asynchronous communication manner via the interface module using the RS422 serial interface.
Specifically, the analog source module supports three telemetry data frame generation modes, wherein the first mode is to generate telemetry data frames with 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, the method comprises a real-time working mode and a playback working mode;
the real-time operation mode includes: the method comprises the steps of receiving long-frame and short-frame telemetry data frames sent by a comprehensive electronic processor of a deep space exploration surrounding device in real time through an interface module, carrying out long-frame and short-frame classified extraction, sending the long-frame and short-frame telemetry data frames to a telemetry receiving device through a network distribution module and a local area network, simultaneously carrying out local storage on original telemetry data before the long-frame classified extraction in a data file mode according to a receiving sequence, and carrying out local storage on the long-frame telemetry data and the short-frame telemetry data after the classified extraction in a data file mode respectively;
the playback operation mode includes: the real-time received data are subjected to playback processing and network distribution, wherein the playback processing and network distribution comprises a large loop playback mode and a network playback mode, when the large loop playback mode is selected, an RS422 self-checking data output port and a telemetry data input port are required to be connected through a self-closing loop cable, an analog source module loads and outputs a long and short frame mixed original telemetry data file stored in a real-time mode, the long and short frame mixed original telemetry data file is sent to a data processing module through the self-closing loop cable and an interface module, and the data are sent to a telemetry receiving device through a network distribution module and a local area network after classified extraction processing; when the 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 telemetry data file and the short-frame telemetry data file which are stored in the real-time mode and are extracted in a classified mode, and the long-frame telemetry data file and the short-frame telemetry data file are sent to telemetry receiving equipment through a local area network according to the set distribution rate.
According to the self-checking method of the deep space exploration circulator self-adaptive frame length wired telemetry forwarding system, the deep space exploration circulator self-adaptive frame length wired telemetry 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 loop cable;
step S2: connecting a telemetry receiving device with the system through a local area network, respectively establishing TCP/IP connection between two receiving channels of the telemetry receiving device and a long frame distributing unit and a short frame distributing unit, and sending a data application;
step S3: setting a starting sequence of a telemetry frame, a long frame length and a short frame length in a data processing module, wherein a frame length type identifier is set in position information of the telemetry frame, a hexadecimal value of the long frame type identifier and hexadecimal value parameters of the short frame type identifier, and a telemetry receiving processing state is established;
step S4: setting analog telemetry data parameters of an analog source module, corresponding to working parameters of a data processing module, and outputting analog telemetry data frames with alternating long and short frames;
step S5: confirming that two receiving channels of the telemetry receiving device respectively receive long-frame telemetry data and short-frame telemetry data, and that telemetry frame format analysis is normal;
step S6: and finishing the execution of the self-checking flow.
Example 2
Example 2 is a preferred example of example 1
The application discloses a deep space exploration circulator self-adaptive frame length wired telemetry forwarding device which comprises an interface module, a data processing module, a network distribution module and an analog source module. The application can meet the receiving, classifying, extracting and forwarding requirements of the deep space exploration circulator long and short frame mixed downloading wired telemetry, and the wired telemetry channel constructed based on the application can be used as a contrast channel of a 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 exploration device.
As shown in fig. 1, a deep space exploration circulator adaptive frame length wired telemetry forwarding device includes:
an interface module: long and short frame mixed telemetry data sent by a comprehensive electronic processor of the deep space exploration surrounding device are received through an RS422 serial interface and sent 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 the ANSI/TIA/EIA-422 standard specification, the communication mode between the interface module and the comprehensive electronic processor of the deep space exploration surrounding device is an asynchronous communication mode, the communication rate is 115200bps, when multi-byte telemetry frame data are transmitted, the highest byte data are transmitted firstly, then the next highest byte data are transmitted, finally the lowest byte data are transmitted, and each byte transmits the low bits firstly and then the high bits.
And a data processing module: and receiving long-short frame mixed downlink telemetry data of the comprehensive electronic processor of the deep space exploration circulator, and carrying out long-frame and short-frame classified extraction.
The telemetry frame length output by the comprehensive electronic processor of the deep space exploration surrounding device 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 hexadecimal value 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 classified extraction on long-frame and short-frame mixed telemetry data downloaded by a comprehensive electronic processor of the deep space exploration surrounding device, and the extraction method comprises the following steps: the method comprises the steps of presetting a starting sequence of a telemetry frame, a long frame length and a short frame length, extracting telemetry frame data according to the hexadecimal value of the type identifier, classifying and extracting the telemetry frame data, and sending the telemetry frame data to a network distribution module after the data processing module receives long and short frame mixed telemetry data, searches a starting boundary of the telemetry frame in the data according to the preset telemetry frame starting sequence, locates the type identifier according to the position information of the type identifier, judges the type of the frame length according to the hexadecimal value of the type identifier, and extracts the telemetry frame data according to the type identifier. The data processing module can locally store the pre-processed long-short frame mixed original telemetry data according to the receiving sequence, and can store the processed long-short frame telemetry data and the processed short-short frame telemetry data in a classified manner.
And a network distribution module: the method comprises the steps of communicating with a telemetry receiving device through a local area network, and respectively transmitting long-frame telemetry data and short-frame telemetry data to the telemetry receiving device.
The network distribution module comprises a long frame distribution unit and a short frame distribution unit, and the network distribution module conforms to TCP/IP protocol when communicating with the back-end telemetry receiving equipment through a local area network. 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 telemetry receiving device wants to acquire long frame telemetry data, the back-end telemetry receiving device initiates the TCP/IP connection request to the IP address corresponding to the long 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 device, the data request message is continuously sent to the client device when the long frame telemetry data of the data processing module is received; if the back-end telemetry receiving device wants to acquire the short-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to the short-frame distributing unit in a client mode, a data request message is sent after the TCP/IP connection is established, and the network distributing module continuously sends the data request message to the client device when the short-frame telemetry data of the data processing module is received after the network distributing module receives the data request of the client device.
Simulation source module: for generating an analog telemetry data frame for output externally through the interface module.
The analog source module supports three telemetry data frame generation modes, wherein the first mode is to generate telemetry data frames with single frame length, the second mode is to alternately generate telemetry data frames with two frame lengths, and the third mode is to load locally stored data files.
The device has a self-checking function, and the self-checking steps are as follows:
s1, connecting an RS422 output port and an RS422 input port of the device through a self-closing loop cable;
s2, connecting the telemetering receiving equipment with the device through a local area network, respectively establishing TCP/IP connection between two receiving channels of the telemetering receiving equipment and a long frame distributing unit and a short frame distributing unit of the device, and sending a data application;
s3, setting parameters such as a starting sequence of a telemetry frame, a long frame length and a short frame length, position information of a frame length type identifier in the telemetry frame, hexadecimal values of the long frame type identifier and hexadecimal values of the short frame type identifier in a data processing module of the device, and establishing a telemetry receiving processing state;
s4, setting analog telemetry data parameters of the analog source module, corresponding to the working parameters of the data processing module, and outputting analog telemetry data frames with alternating long and short frames;
s5, confirming that two receiving channels of the telemetry receiving device respectively receive long-frame telemetry data and short-frame telemetry data, and analyzing a telemetry frame format normally;
s6, finishing execution of the device self-checking flow.
The device has two working modes, namely a real-time mode and a playback mode. In a real-time mode, the device receives long and short frame telemetry data frames sent by the comprehensive electronic processor of the deep space exploration surrounding device in real time through the interface module, performs long frame and short frame classified extraction, and then sends the long and short frame classified extraction to the telemetry receiving device through the network distribution module and the local area network, and meanwhile, the original telemetry data before the long and short frame classified extraction are stored locally in a data file mode according to the receiving sequence, and the long frame telemetry data and the short frame telemetry data after the classified extraction are stored locally in a data file mode respectively. The playback mode is to carry out playback processing and network distribution on data received in real time, support a large loop playback mode and a network playback mode, when the large loop playback mode is selected, an RS422 self-checking data output port and a telemetry data input port of the device are connected through a self-closing loop cable, an analog source module loads and outputs a long and short frame mixed original telemetry data file stored in the real-time mode, the long and short frame mixed original telemetry data file is sent to a data processing module through the self-closing loop cable and an interface module, and the data is sent to a telemetry receiving device through a network distribution module and a local area network after classification extraction processing is carried out; when the 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 telemetry data file and the short-frame telemetry data file which are stored in the real-time mode and are extracted in a classified mode, and the long-frame telemetry data file and the short-frame telemetry data file are sent to telemetry receiving equipment through a local area network according to the set distribution rate.
Those skilled in the art will appreciate that the systems, apparatus, and their respective modules provided herein may be implemented entirely by logic programming of method steps such that the systems, apparatus, and their respective modules are implemented as logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc., in addition to the systems, apparatus, and their respective modules being implemented as pure computer readable program code. Therefore, the system, the apparatus, and the respective modules thereof provided by the present application may be regarded as one hardware component, and the modules included therein for implementing various programs may also be regarded as structures within the hardware component; modules for implementing various functions may also be regarded as being either software programs for implementing the methods or structures within hardware components.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (9)
1. A deep space exploration circulator adaptive frame length wired telemetry forwarding system, comprising:
an interface module: long and short frame mixed telemetry data sent by a comprehensive electronic processor of the deep space exploration surrounding device are received and sent to a data processing module;
and a data processing module: long-short frame mixed downlink telemetry data of a comprehensive electronic processor of the deep space exploration surrounding device are received, and long-short frame and short-frame classified extraction processing is carried out to obtain long-frame telemetry data and short-frame telemetry data;
and a network distribution module: respectively transmitting the long-frame telemetry data and the short-frame telemetry data to telemetry receiving equipment;
the data processing module adopts:
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 telemetry data, the data processing module searches the starting boundary of the telemetry frame in the data according to a preset telemetry frame starting sequence;
module M3: locating the frame length type identifier according to the position information of the frame length type identifier in the telemetry frame;
module M4: 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 transmitting the telemetry frame data to a network distribution module after classification extraction is completed.
2. The deep space probe surround adaptive frame length wired telemetry forwarding system of claim 1, wherein the interface module employs: and the RS422 serial interface is utilized to receive long and short frame mixed telemetry data sent by the comprehensive electronic processor of the deep space exploration surrounding device in an asynchronous communication mode.
3. The deep space probe circulator adaptive frame length wired telemetry forwarding system of claim 1, wherein in the data processing module, the pre-processed long and short frame mixed original telemetry data 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 extraction processing are stored respectively in a data file form.
4. The deep space probe surround adaptive frame length wired telemetry forwarding system of claim 1, wherein the network distribution module employs: the long-frame telemetry data and the short-frame telemetry data are respectively transmitted to the telemetry receiving device through the local area network communication with the telemetry receiving device.
5. The deep space probe circulator adaptive frame length wired telemetry forwarding system of claim 1, wherein the network distribution module comprises a long frame distribution unit and a short frame distribution unit;
the long frame distributing unit and the short frame distributing unit respectively monitor TCP/IP connection requests and data requests of two IP addresses in a server mode; when the back-end telemetry receiving equipment wants to acquire long-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to a long-frame distribution unit in a client mode, and after the TCP/IP connection is established, a data request message is sent; after receiving the data request of the client device, the network distribution module continuously sends the data request to the client device when receiving the long-frame telemetry data of the data processing module; when the back-end telemetry receiving device wants to acquire short-frame telemetry data, a TCP/IP connection request is initiated to an IP address corresponding to the short-frame distributing unit in a client mode, a data request message is sent after the TCP/IP connection is established, and after the network distributing module receives the data request of the client device, the data request is continuously sent to the client device when the short-frame telemetry data of the data processing module is received.
6. The deep space probe surround adaptive frame length wired telemetry forwarding system of claim 1, wherein the analog source module generates analog telemetry data frames and outputs the frames externally in an asynchronous communication manner for device self-test and data playback using an RS422 serial interface through the interface module.
7. The deep space probe surround adaptive frame length wired telemetry forwarding system of claim 6, wherein the analog source module generates an analog telemetry data frame using: generating telemetry data frames of a single frame length, alternately generating telemetry data frames of two frame lengths, and/or loading a locally stored data file.
8. The deep space probe surround adaptive frame length wired telemetry forwarding system of claim 6 or 7, comprising a real-time mode of operation and a playback mode of operation;
the real-time operation mode includes: the method comprises the steps of receiving long-frame and short-frame telemetry data frames sent by a comprehensive electronic processor of a deep space exploration surrounding device in real time through an interface module, carrying out long-frame and short-frame classified extraction, sending the long-frame and short-frame telemetry data frames to a telemetry receiving device through a network distribution module and a local area network, simultaneously carrying out local storage on original telemetry data before the long-frame classified extraction in a data file mode according to a receiving sequence, and carrying out local storage on the long-frame telemetry data and the short-frame telemetry data after the classified extraction in a data file mode respectively;
the playback operation mode includes: the real-time received data are subjected to playback processing and network distribution, wherein the playback processing and network distribution comprises a large loop playback mode and a network playback mode, 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-closing loop cable, an analog source module loads and outputs a long and short frame mixed original telemetry data file stored in a real-time mode, the long and short frame mixed original telemetry data file is transmitted to a data processing module through the self-closing loop cable and the interface module, and the data processing module is subjected to classification extraction processing and then is transmitted to a telemetry receiving device through a network distribution module and a local area network; when the 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 telemetry data file and the short-frame telemetry data file which are stored in the real-time mode and are extracted in a classified mode, and the long-frame telemetry data file and the short-frame telemetry data file are sent to telemetry receiving equipment through a local area network according to the set distribution rate.
9. A self-checking method of a deep space exploration circulator self-adaptive frame length wired telemetry forwarding system, characterized in that the deep space exploration circulator self-adaptive frame length wired telemetry forwarding system according to any one of claims 1 to 8 is used for executing the following steps:
step S1: connecting an input port and an output port of the interface module through a self-closing loop cable;
step S2: establishing TCP/IP connection between two receiving channels of the telemetry receiving device and a long frame distributing unit and a short frame distributing unit respectively, and sending a data application;
step S3: setting a starting sequence of a telemetry frame, a long frame length and a short frame length in a data processing module, wherein a frame length type identifier is set in position information of the telemetry frame, a hexadecimal value of the long frame type identifier and hexadecimal value parameters of the short frame type identifier, and a telemetry receiving processing state is established;
step S4: setting analog telemetry data parameters of an analog source module, corresponding to working parameters of a data processing module, and outputting analog telemetry data frames with alternating long and short frames;
step S5: the two receiving channels of the confirmation telemetry receiving device respectively receive long-frame telemetry data and short-frame telemetry data, and the telemetry frame format is normal in analysis.
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