CN108712200B - Intelligent wireless satellite affair system for minisatellite and control method - Google Patents
Intelligent wireless satellite affair system for minisatellite and control method Download PDFInfo
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Abstract
The invention relates to a small satellite intelligent wireless house service system and a control method, wherein a wireless communication framework of Wifi + ZigBee is introduced; the wireless transmission of information is completed by adopting a mode of combining a Wifi wireless network and a ZigBee wireless network, the traditional wired bus is replaced, and the problems of more cables and complex connection relation of an electrical system in a wired network connection mode are effectively solved; a system architecture taking an intelligent housekeeping unit as a data center is formed by adopting a data classification module, a data analysis module and a data storage module, an access request and an analysis request for whole satellite telemetering data can be provided according to self requirements, the housekeeping system is realized from a task-oriented aspect to a data-oriented aspect, and the satellite data management and analysis capability is improved.
Description
Technical Field
The invention relates to a small satellite intelligent wireless housekeeping system and a control method, in particular to a small satellite intelligent wireless housekeeping system and a control method based on Wifi-ZigBee.
Background
The satellite affair system is the core of a small satellite information system and is responsible for finishing the comprehensive information processing work of the satellite. The conventional satellite affair system adopts a satellite network and an embedded lower computer to form a system, the system is shown in figure 1, the satellite network adopts a CAN bus as a whole satellite real-time field bus, scattered embedded lower computers on a satellite are connected to realize on-satellite information exchange and sharing, on-satellite operation management, control and task scheduling are completed in real time, the operation of the embedded lower computers is managed and controlled, the state of the whole satellite is monitored, the work of the whole satellite is coordinated, and various on-orbit control and parameter resetting of a reconnaissance task are realized by matching with an effective load so as to realize preset functions and task requirements. The information management system structure is characterized by mainly wired connection and task-oriented.
With the improvement of the requirements of the informatization, intellectualization and standardization level of the satellite in the future, the problems of more cables, complex connection relation of an electrical system and the like exist in a wired network connection mode; the task requirements faced by satellite star affair systems have crossed from task oriented to data oriented, mainly the improvement of satellite data management and analysis capability. Therefore, the current small satellite star affair system can not meet the use requirement more and more, and a more intelligent star affair system needs to be designed.
Disclosure of Invention
The technical problem of the invention is solved: the intelligent microsatellite wireless house service system based on the Wifi-ZigBee can effectively solve the problems of complex connection and low data management and analysis capability of an electrical system, establishes an intelligent information data management system for the microsatellite and improves the informatization, intellectualization and standardization levels of the microsatellite.
The technical solution of the invention is as follows:
a kind of little satellite intelligence is wireless to be stared the affair system, the peripheral equipment includes answering machine and star affair test computer; the system comprises an intelligent housekeeping management unit, a data storage module, a Wifi communication module, a ZigBee coordinator and a ZigBee terminal;
the intelligent housekeeping unit is a data management core and a protocol conversion gateway, and comprises a serial port data cache module, a housekeeping host module, a gateway module, a data classification module and a data analysis module;
the serial port data caching module caches SPI serial interface data and comprises remote control data sent by a Wifi communication module, telemetering data sent by a ZigBee coordinator and telemetering storage data sent by a data storage module;
the system comprises a satellite host module, a gateway module, a data analysis module and a data classification module, wherein the satellite host module is used for the operation management of an intelligent wireless satellite system, receiving remote control data transmitted from a serial port data cache module, analyzing the data and sending an analysis result to the gateway module, the data analysis module and the data classification module;
the gateway module is used for connection management and data protocol conversion between the Wifi wireless network and the ZigBee network. Receiving remote control data from the serial port data cache module, converting the remote control data from a Wifi data packet format into a ZigBee data packet format, and sending the converted data to the ZigBee coordinator through the serial port data cache module; the gateway module is used for receiving the telemetering data of the ZigBee terminal from the serial port data cache module, converting the telemetering data from the ZigBee data packet format into the Wifi data packet format, and sending the converted data to the Wifi communication module through the serial port data cache module to achieve downloading operation.
The data classification module is used for telemetry data classification and feature extraction. And receiving the telemetering data from the ZigBee coordinator, classifying the data and extracting the characteristics according to the requirements, and sending the classified data to the data storage module through the serial port data cache module.
The data analysis module is used for the extraction function and the data analysis of the telemetering data. After receiving the command of the housekeeping host computer module, the telemetering storage data is extracted from the data storage module through the serial port data cache module, data analysis is carried out according to requirements, and the analysis result is output to the housekeeping host computer module.
The data storage module is used for storing the telemetry data. Receiving telemetry data from the data classification module and completing storage; and outputting the stored telemetering storage data to a data analysis module for data analysis by the data analysis module.
The Wifi communication module is used for establishing a Wifi network and realizing data communication between the answering machine or the housekeeping test computer and the intelligent housekeeping unit. Receiving remote control data in a Wifi data packet format sent by a responder or a housekeeping test computer, and sending the remote control data to a serial port data cache module; and receiving the telemetering data in the Wifi data packet format from the gateway module through the serial port data cache module, and sending the telemetering data to the answering machine or the star test computer.
The ZigBee coordinator is used for establishing a ZigBee wireless network and realizing the expansion of the ZigeeBee terminal. The ZigBee coordinator receives remote control data in a ZigBee data packet format from the gateway module through the serial port data cache module and sends the remote control data to the ZigeeBee terminal; the ZigBee coordinator is also used for receiving the telemetering data sent by the ZigeeBee terminal and sending the telemetering data to the gateway module through the serial port data cache module for protocol conversion processing.
The ZigeeBee terminal receives the remote control data from the ZigBee coordinator after being added into the ZigBee network and performs corresponding processing according to the remote control data; the ZigeeBee terminal collects the telemetering data of the terminal and sends the telemetering data to the ZigBee coordinator.
A method for controlling intelligent wireless satellite affairs of a small satellite comprises the following steps:
(1) the responder or the housekeeping test computer packages the remote control data into a Wifi data packet according to a Wifi communication protocol, and sends the remote control data to the Wifi communication module through a Wifi network;
(2) the Wifi communication module sends remote control data to the serial port data cache module through an SPI serial interface, the housekeeping host module and the gateway module respectively receive the remote control data from the serial port data cache module, both the housekeeping host module and the gateway module analyze the content of the remote control data, whether the remote control data is processed or not is judged according to mode words in the content of the remote control data, and if the housekeeping host module identifies that the remote control data is housekeeping host module control data, corresponding operation is executed according to the content of the remote control data, intelligent wireless housekeeping control of the minisatellite is completed; if the gateway module identifies that the remote control data is the data transmitted to the ZigBee terminal, executing the step (3);
(3) the gateway module carries out protocol conversion processing on the remote control data forwarded to the ZigBee terminals, the Wifi data packet format is converted into the ZigBee data packet format, the ZigBee data packets are sent to the serial port data cache module through the SPI serial interface, the ZigBee coordinator receives the remote control data from the serial port data cache module and sends the remote control data to each ZigBee terminal through the ZigBee network, the ZigBee terminals identify ID marks in the remote control data, if the remote control data are sent to the ZigBee terminals, data processing is carried out, and if the remote control data are not sent to the ZigBee terminals, the data processing is not carried out;
(4) the ZigBee terminal receives the remote control data, judges the remote control data, and if the remote control data is ZigBee terminal control data, analyzes the data, completes the control operation of the ZigBee terminal, and completes the intelligent wireless satellite control of the small satellite; if the data is a telemetry poll, performing step (5);
(5) the ZigBee terminal collects telemetry data and carries out format processing, the telemetry data are packaged into a ZigBee data packet format, the ZigBee terminal sends the telemetry data to the ZigBee coordinator through a ZigBee network, the ZigBee coordinator sends the telemetry data to the serial port data cache module through the SPI serial interfaces respectively, the gateway module and the data classification module receive the telemetry data through the serial port data cache module, the gateway module carries out protocol conversion processing on the telemetry data, the telemetry data are converted into a Wifi format data packet from the ZigBee format data packet, and the step (6) is executed; and (4) unpacking the telemetering data of the ZigBee format data packet by the data classification module, extracting effective information, classifying the data according to the label attribute, and executing the step (7).
(6) The gateway module sends the Wifi format data packet after protocol conversion to the serial port data cache module through the SPI serial interface, the Wifi communication module receives the telemetering data through the serial port data cache module, and the Wifi communication module sends the telemetering data to a transponder or a housekeeping test computer through a Wifi network, so that intelligent wireless housekeeping control of the small satellites is completed;
(7) the data classification module sends the classified telemetering data to the data storage module for storage through the serial port data cache module, the data storage module completes the classified storage of the on-satellite telemetering data, when a telemetering storage data extraction command of the data analysis module is received, the corresponding telemetering storage data is sent to the data analysis module through the serial port data cache module, the data analysis module analyzes the telemetering storage data, and sends the analysis result of the telemetering storage data to the housekeeping host module, so that the intelligent wireless housekeeping control of the small satellites is completed.
Compared with the prior art, the invention has the following advantages:
(1) the invention adopts a mode of combining a Wifi wireless network and a ZigBee wireless network, remote control data information and whole satellite telemetering data information are transmitted through the wireless network, a traditional wired bus is replaced, the connection among all systems of the satellite is simpler, and the wiring arrangement of a low-frequency cable in the satellite is not required to be considered. The problems of multiple cables and complex connection relation of an electrical system in a wired network connection mode are effectively solved.
(2) The invention adopts a mode of adding a data classification module, a data analysis module and a data storage module to form a system architecture taking an intelligent housekeeping unit as a data center, can provide an access request and an analysis request for whole satellite data according to self requirements, realizes the spanning of a housekeeping system from a task-oriented to a data-oriented layer, and improves the satellite data management and analysis capability.
Drawings
FIG. 1 is a schematic diagram of a conventional star system;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a diagram of the interface between the intelligent housekeeping unit and other modules according to the present invention;
FIG. 4 is a flowchart illustrating the operation of the intelligent wireless satellite control method of the present invention;
fig. 5 is a diagram illustrating a remote control data format.
Detailed Description
A kind of little satellite intelligence is wireless to be stared the affair system, the peripheral equipment includes answering machine and star affair test computer;
the system comprises an intelligent housekeeping management unit, a data storage module, a Wifi communication module, a ZigBee coordinator and a ZigBee terminal;
the intelligent housekeeping unit comprises a serial port data cache module, a housekeeping host module, a gateway module, a data classification module and a data analysis module.
The Wifi communication module is used for receiving the remote control data in the Wifi data packet format sent by the responder or the housekeeping test computer and sending the received remote control data to the housekeeping host module and the gateway module through the serial port data cache module; the Wifi communication module is also used for receiving the telemetering data sent by the gateway module through the serial port data cache module and sending the received telemetering data to the answering machine or the star test computer.
The serial port data caching module is used for caching SPI serial interface data and comprises remote control data sent by a Wifi communication module, telemetering data sent by a ZigBee coordinator and telemetering storage data sent by a data storage module.
The gateway module is used for receiving the remote control data from the serial port data cache module, converting the received remote control data from a Wifi data packet format into a ZigBee data packet format, and sending the converted remote control data to the ZigBee coordinator through the serial port data cache module; the gateway module is also used for telemetering data from the serial port data cache module, converting the received telemetering data from a ZigBee data packet format into a Wifi data packet format, and sending the converted telemetering data to the Wifi communication module through the serial port data cache module.
The star affair host module is used for receiving the remote control data from the serial port data cache module, analyzing the received remote control data and executing operation according to the analysis processing result.
The ZigBee coordinator receives remote control data in a ZigBee data packet format from the gateway module through the serial port data cache module and sends the received remote control data to the ZigeeBee terminal; the ZigBee coordinator is also used for receiving the telemetering data sent by the ZigeeBee terminal and sending the received telemetering data to the gateway module through the serial port data cache module for protocol conversion processing.
The ZigeeBee terminal is used for receiving the remote control data sent by the ZigBee coordinator and carrying out corresponding processing according to the received remote control data; the ZigeeBee terminal is also used for collecting telemetering data of the intelligent lower computer and sending the collected telemetering data to the ZigBee coordinator.
The data classification module is used for receiving the telemetering data from the ZigBee coordinator, finishing data classification and feature extraction, and sending the classified data to the data storage module through the serial port data cache module.
After receiving the command of the housekeeping host computer module, the data analysis module extracts the telemetering data from the data storage module through the serial port data cache module, performs data analysis according to an analysis algorithm, and outputs an analysis result to the housekeeping host computer module.
The data storage module is used for storing on-satellite telemetering data. Receiving telemetry data from the data classification module and completing storage; the stored telemetry data is output to a data analysis module.
An intelligent wireless star control method comprises the following steps:
(1) the responder or the housekeeping test computer packages the remote control data into a Wifi data packet according to a Wifi communication protocol, and sends the remote control data to the Wifi communication module through a Wifi network;
(2) the Wifi communication module sends the remote control data to the serial port data cache module through the SPI serial interface, the housekeeping host module and the gateway module respectively receive the remote control data from the serial port data cache module, analyze the data content, judge whether to process the data according to the mode word, and if the housekeeping host module identifies that the data is housekeeping host module control data, corresponding operation is executed according to the data content; if the gateway module identifies that the data is the data transmitted to the ZigBee terminal, executing the step (3);
(3) the gateway module carries out protocol conversion processing on the remote control data forwarded to the ZigBee, converts the format of a Wifi data packet into the format of a ZigBee data packet, sends the ZigBee data packet to the serial port data cache module through the SPI serial interface, the ZigBee coordinator receives the remote control data from the serial port data cache module and sends the remote control data to each ZigBee terminal through the ZigBee network, the ZigBee terminal identifies an ID (identity) in the remote control data, if the remote control data is sent to the ZigBee terminal, the data processing is carried out, and if the remote control data is not sent to the ZigBee terminal, the data processing is carried out;
(4) the ZigBee terminal receives the remote control data, judges the data, analyzes the data and completes the control operation of the ZigBee terminal if the data is the ZigBee terminal control data, and executes the step (5) if the data is telemetering polling;
(5) the ZigBee terminal collects telemetry data and carries out format processing, the telemetry data are packaged into a ZigBee data packet format, the ZigBee terminal sends the telemetry data to the ZigBee coordinator through a ZigBee network, the ZigBee coordinator sends the telemetry data to the serial port data cache module through the SPI serial interfaces respectively, the gateway module and the data classification module receive the telemetry data through the serial port data cache module, the gateway module carries out protocol conversion processing on the telemetry data, the telemetry data are converted into a Wifi format data packet from the ZigBee format data packet, and the step (6) is executed; and (4) unpacking the telemetering data of the ZigBee format data packet by the data classification module, extracting effective information, classifying the data according to the label attribute, and executing the step (7).
(6) The gateway module sends the Wifi format data packet after protocol conversion to the serial port data cache module through the SPI serial interface, the Wifi communication module receives the telemetering data through the serial port data cache module, and the Wifi communication module sends the telemetering data to the answering machine or the housekeeping test computer through the Wifi network.
(7) And the data classification module sends the classified telemetering data to the data storage module for storage through the serial port data cache module.
And (4) finishing the classified storage of the on-satellite telemetering data by the data storage module in the step (7), when a telemetering data extraction command of the data analysis module is received, sending the corresponding telemetering data to the data analysis module through the serial port data cache module, analyzing the telemetering data by the data analysis module, and sending a telemetering data analysis result to the satellite host module.
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in fig. 2, the intelligent wireless housekeeping system adopts a modular design, and comprises an intelligent housekeeping management unit, a data storage module, a Wifi communication module, a ZigBee coordinator and a ZigBee terminal;
the intelligent housekeeping unit is a data management core and a protocol conversion gateway and comprises a serial port data cache module, a housekeeping host module, a gateway module, a data classification module and a data analysis module.
The ZigBee coordinator is communicated with each ZigeeBee terminal through a ZigBee wireless network; and the Wifi communication module communicates with the responder and the ground test equipment through a Wifi wireless network. Establishing a ZigBee network between the ZigBee coordinator and each ZigeeBee terminal, and performing telemetering data acquisition and remote control data transmission through the network; and a Wifi network is established among the Wifi communication module, the responder and the house service test computer, and telemetering data downloading and remote control data uplink transmission are carried out through the network.
The serial port data caching module caches SPI serial interface data and comprises remote control data sent by a Wifi communication module, telemetering data sent by a ZigBee coordinator and telemetering storage data sent by a data storage module.
The housekeeping host module is used for the operation management of the intelligent wireless housekeeping system, receiving the remote control data transmitted from the serial port data cache module and analyzing and processing the data; and according to the analysis result, the control and management work of the gateway module, the data analysis module and the data classification module is completed.
The gateway module is used for connection management and data protocol conversion between the Wifi wireless network and the ZigBee network. Receiving remote control data from a serial port data cache module, converting the data from a Wifi data packet format into a ZigBee data packet format, and sending the converted data to a ZigBee coordinator; and receiving telemetering data from the ZigBee terminal of the ZigBee coordinator, converting the data from a ZigBee data packet format into a Wifi data packet format, and sending the converted data to a Wifi communication module to realize downloading operation. In addition, the gateway module receives a control command from the housekeeping host module to realize the function of connection management between networks.
The data classification module is used for telemetry data classification and feature extraction. And receiving the telemetering data from the ZigBee coordinator, finishing data classification and feature extraction, and sending the classified data to the data storage module through the serial port data cache module.
The data analysis module is used for the extraction function and the data analysis of the telemetering data. After receiving the command of the housekeeping host computer module, the telemetering data is extracted from the data storage module through the serial port data cache module, data analysis is carried out according to an analysis algorithm, and an analysis result is output to the housekeeping host computer module.
The data storage module is used for storing on-satellite telemetering data. Receiving telemetry data from the data classification module and completing storage; and outputting the stored telemetering data to a data analysis module for data analysis by the data analysis module.
The Wifi communication module is used for establishing a Wifi network and realizing data communication between the answering machine or the housekeeping test computer and the intelligent housekeeping unit. Receiving remote control data in a Wifi data packet format sent by a responder or a housekeeping test computer, and sending the data to a serial port data cache module; and the receiving serial port data cache module converts the received data into telemetering data in a Wifi data packet format, and sends the data to the responder or the housekeeping test computer.
The ZigBee coordinator is used for establishing a ZigBee wireless network and realizing the expansion of the ZigeeBee terminal. Remote control data in a ZigBee data packet format from a gateway module is received through a serial port data cache module, and the data are sent to a ZigeeBee terminal; and receiving the telemetering data sent by the ZigeeBee terminal, and sending the telemetering data to the gateway module through the serial port data cache module for protocol conversion processing.
The ZigeeBee terminal is added into the ZigBee network, receives remote control data from the ZigBee coordinator and performs corresponding processing according to instruction information; and collecting the telemetering data of the terminal and sending the telemetering data to the ZigBee coordinator.
As shown in fig. 3, the intelligent housekeeping unit communicates with the ZigBee coordinator, the Wifi communication module, and the data storage module through SPI serial interfaces. And bidirectional data transmission with the ZigBee coordinator, the Wifi communication module and the data storage module is realized through the serial port data cache module.
Fig. 4 shows the steps of the intelligent wireless star service system control method of the present invention, which comprises the following steps:
(1) the responder or the housekeeping test computer packages the remote control data into a Wifi data packet according to a Wifi communication protocol, and sends the remote control data to the Wifi communication module through a Wifi network;
(2) the Wifi communication module sends the remote control data to the serial port data cache module through the SPI serial interface, the housekeeping host module and the gateway module respectively receive the remote control data from the serial port data cache module and analyze the data content, FIG. 5 is a remote control data format, and whether the data is processed or not is judged according to a mode word, wherein the mode word '00H' indicates that the remote control data is housekeeping host module control data, and corresponding operation is executed according to the data content; if the other mode words indicate that the remote control data are data transmitted to the ZigBee terminal, executing the step (3);
(3) the gateway module carries out protocol conversion processing on the remote control data forwarded to the ZigBee, the Wifi data packet format is converted into the ZigBee data packet format, the ZigBee data packet is sent to the serial port data cache module through the SPI serial interface, the ZigBee coordinator receives the remote control data from the serial port data cache module and sends the remote control data to each ZigBee terminal through the ZigBee network, the ZigBee terminals identify virtual channel identification words in the remote control data, the virtual channel identification words are '03H', the data are sent to the ZigBee terminal 3, the ZigBee terminal 3 processes the data, and other ZigBee terminals do not process the data;
(4) the ZigBee terminal receives the remote control data, judges the data, and completes the reset operation if the command is a command for resetting the ZigBee terminal; if the command is a telemetry polling command, executing the step (5);
(5) the ZigBee terminal collects telemetry data and carries out format processing, the telemetry data are packaged into a ZigBee data packet format, the ZigBee terminal sends the telemetry data to the ZigBee coordinator through a ZigBee network, the ZigBee coordinator sends the telemetry data to the serial port data cache module through the SPI serial interfaces respectively, the gateway module and the data classification module receive the telemetry data through the serial port data cache module, the gateway module carries out protocol conversion processing on the telemetry data, the telemetry data are converted into a Wifi format data packet from the ZigBee format data packet, and the step (6) is executed; the data classification module unpacks the telemetering data of the ZigBee format data packet, extracts effective information, classifies the data according to the label attribute, and executes the step (7);
(6) the gateway module sends the Wifi format data packet after protocol conversion to the serial port data cache module through the SPI serial interface, the Wifi communication module receives the telemetering data through the serial port data cache module, and the Wifi communication module sends the telemetering data to the answering machine or the housekeeping test computer through the Wifi network.
(7) The classification processing of the data classification module is completed by setting the attribute bit of a specific label, the label attribute can be divided into characteristics such as a single machine code, an analog quantity, a temperature quantity, a digital quantity, a current, a voltage, a count, a state quantity, a health mark, an address, an orbit parameter and the like, the specific format is shown in table 1, the data value of the satellite GPS receiver telemetering data 'positioning absolute position X' is 12345678H, the parameter label attribute is a digital quantity and an orbit parameter, the single machine code is 07H, and the storage time is 01234567H seconds 10H milliseconds when UTC is adopted.
(8) And the data classification module sends the classified telemetering data to the data storage module for storage through the serial port data cache module.
And (8) finishing the classified storage of the on-satellite telemetering data by the data storage module, when a telemetering data extraction command of the data analysis module is received, sending the corresponding telemetering data to the data analysis module through the serial port data cache module, wherein the telemetering data extraction command comprises labels such as label attribute, stand-alone code number and storage time, if the label 'stand-alone code number' contained in the command is 03H, the label is analog, and the storage time is 012345678H-087654321H, extracting all analog telemetering data of the stand-alone at the time according to the number 03H in the interval, analyzing and processing the telemetering data according to a preset algorithm, and sending a processing result to the satellite host module for the satellite to finish on-orbit autonomous operation control.
TABLE 1 specific format for telemetering classified storage data
The present invention has not been described in detail as is known to those skilled in the art.
Claims (1)
1. A little satellite intelligence wireless house service system which characterized in that:
the intelligent wireless house service system adopts a modular design and comprises an intelligent house service management unit, a data storage module, a Wifi communication module, a ZigBee coordinator and a ZigBee terminal;
the intelligent housekeeping unit is a data management core and a protocol conversion gateway, and comprises a serial port data cache module, a housekeeping host module, a gateway module, a data classification module and a data analysis module;
the ZigBee coordinator is communicated with each ZigeeBee terminal through a ZigBee wireless network; the Wifi communication module is communicated with the responder and the ground test equipment through a Wifi wireless network; establishing a ZigBee network between the ZigBee coordinator and each ZigeeBee terminal, and performing telemetering data acquisition and remote control data transmission through the network; a Wifi network is established among the Wifi communication module, the responder and the house service test computer, and telemetering data downloading and remote control data uplink transmission are carried out through the network;
the serial port data caching module caches SPI serial interface data and comprises remote control data sent by a Wifi communication module, telemetering data sent by a ZigBee coordinator and telemetering storage data sent by a data storage module;
the housekeeping host module is used for the operation management of the intelligent wireless housekeeping system, receiving the remote control data transmitted from the serial port data cache module and analyzing and processing the data; according to the analysis result, the control and management work of the gateway module, the data analysis module and the data classification module is completed;
the gateway module is used for connecting management and data protocol conversion between the Wifi wireless network and the ZigBee network; receiving remote control data from a serial port data cache module, converting the data from a Wifi data packet format into a ZigBee data packet format, and sending the converted data to a ZigBee coordinator; receiving telemetering data from a ZigBee terminal of a ZigBee coordinator, converting the data from a ZigBee data packet format into a Wifi data packet format, and sending the converted data to a Wifi communication module to realize downloading operation; the gateway module receives a control command from the housekeeping host module to realize the function of connection management between networks;
the data classification module is used for telemetering data classification and feature extraction; receiving telemetering data from a ZigBee coordinator, finishing data classification and feature extraction, and sending the classified data to a data storage module through a serial port data cache module;
the data analysis module is used for extracting telemetry data and analyzing the data; after receiving the command of the housekeeping host computer module, extracting telemetering data from the data storage module through the serial port data cache module, carrying out data analysis according to an analysis algorithm, and outputting an analysis result to the housekeeping host computer module;
the data storage module is used for storing on-satellite telemetering data; receiving telemetry data from the data classification module and completing storage; outputting the stored telemetering data to a data analysis module for data analysis by the data analysis module;
the Wifi communication module is used for establishing a Wifi network to realize data communication between the responder or the housekeeping test computer and the intelligent housekeeping unit; receiving remote control data in a Wifi data packet format sent by a responder or a housekeeping test computer, and sending the data to a serial port data cache module; receiving telemetering data converted into a Wifi data packet format by a serial port data cache module, and sending the data to a responder or a housekeeping test computer;
the ZigBee coordinator is used for establishing a ZigBee wireless network and realizing the expansion of the ZigeeBee terminal; remote control data in a ZigBee data packet format from a gateway module is received through a serial port data cache module, and the data are sent to a ZigeeBee terminal; receiving telemetering data sent by the ZigeeBee terminal, and sending the telemetering data to the gateway module through the serial port data cache module for protocol conversion processing;
the ZigeeBee terminal is added into the ZigBee network, receives remote control data from the ZigBee coordinator and performs corresponding processing according to instruction information; collecting remote measuring data of the terminal and sending the remote measuring data to a ZigBee coordinator;
the intelligent housekeeping unit is communicated with the ZigBee coordinator, the Wifi communication module and the data storage module by an SPI serial interface; bidirectional data transmission with a ZigBee coordinator, a Wifi communication module and a data storage module is realized through a serial port data cache module;
the intelligent wireless star service system control method comprises the following specific steps:
(1) the responder or the housekeeping test computer packages the remote control data into a Wifi data packet according to a Wifi communication protocol, and sends the remote control data to the Wifi communication module through a Wifi network;
(2) the Wifi communication module sends the remote control data to the serial port data cache module through the SPI serial interface, the housekeeping host module and the gateway module respectively receive the remote control data from the serial port data cache module, analyze the data content and judge whether to process the data according to a mode word, wherein the mode word '00H' indicates that the remote control data is housekeeping host module control data and executes corresponding operation according to the data content; if the other mode words indicate that the remote control data are data transmitted to the ZigBee terminal, executing the step (3);
(3) the gateway module carries out protocol conversion processing on the remote control data forwarded to the ZigBee, the Wifi data packet format is converted into the ZigBee data packet format, the ZigBee data packet is sent to the serial port data cache module through the SPI serial interface, the ZigBee coordinator receives the remote control data from the serial port data cache module and sends the remote control data to each ZigBee terminal through the ZigBee network, the ZigBee terminals identify virtual channel identification words in the remote control data, the virtual channel identification words are '03H', the data are sent to the ZigBee terminal 3, the ZigBee terminal 3 processes the data, and other ZigBee terminals do not process the data;
(4) the ZigBee terminal receives the remote control data, judges the data, and completes the reset operation if the command is a command for resetting the ZigBee terminal; if the command is a telemetry polling command, executing the step (5);
(5) the ZigBee terminal collects telemetry data and carries out format processing, the telemetry data are packaged into a ZigBee data packet format, the ZigBee terminal sends the telemetry data to the ZigBee coordinator through a ZigBee network, the ZigBee coordinator sends the telemetry data to the serial port data cache module through the SPI serial interfaces respectively, the gateway module and the data classification module receive the telemetry data through the serial port data cache module, the gateway module carries out protocol conversion processing on the telemetry data, the telemetry data are converted into a Wifi format data packet from the ZigBee format data packet, and the step (6) is executed; the data classification module unpacks the telemetering data of the ZigBee format data packet, extracts effective information, classifies the data according to the label attribute, and executes the step (7);
(6) the gateway module sends the Wifi format data packet after protocol conversion to the serial port data cache module through the SPI serial interface, the Wifi communication module receives the telemetering data through the serial port data cache module, and the Wifi communication module sends the telemetering data to the answering machine or the housekeeping test computer through a Wifi network;
(7) the classification processing of the data classification module is completed by setting the attribute bit of a specific label, the label attribute is divided into a single machine code, an analog quantity, a temperature quantity, a digital quantity, a current, a voltage, a count, a state quantity, a health mark, an address and an orbit parameter, the data value of a satellite GPS receiver telemetering data 'positioning absolute position X' is 12345678H, the label attribute is the digital quantity and the orbit parameter, the single machine code is 07H, and the storage time is 01234567H seconds 10H milliseconds when UTC is adopted;
(8) the data classification module sends the classified telemetering data to the data storage module for storage through the serial port data cache module;
and (8) finishing the classified storage of the on-satellite telemetering data by the data storage module, when a telemetering data extraction command of the data analysis module is received, sending the corresponding telemetering data to the data analysis module through the serial port data cache module, wherein the telemetering data extraction command comprises labels such as label attribute, stand-alone code number and storage time, if the label 'stand-alone code number' contained in the command is 03H, the label is analog, and the storage time is 012345678H-087654321H, extracting all analog telemetering data of the stand-alone at the time according to the number 03H in the interval, analyzing and processing the telemetering data according to a preset algorithm, and sending a processing result to the satellite host module for the satellite to finish on-orbit autonomous operation control.
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