[go: up one dir, main page]

CN115882929B - Satellite telemetry application mode and architecture of three-level protection mechanism - Google Patents

Satellite telemetry application mode and architecture of three-level protection mechanism

Info

Publication number
CN115882929B
CN115882929B CN202211485808.4A CN202211485808A CN115882929B CN 115882929 B CN115882929 B CN 115882929B CN 202211485808 A CN202211485808 A CN 202211485808A CN 115882929 B CN115882929 B CN 115882929B
Authority
CN
China
Prior art keywords
telemetry
subsystem
satellite
normal
key
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211485808.4A
Other languages
Chinese (zh)
Other versions
CN115882929A (en
Inventor
张顾洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN202211485808.4A priority Critical patent/CN115882929B/en
Publication of CN115882929A publication Critical patent/CN115882929A/en
Application granted granted Critical
Publication of CN115882929B publication Critical patent/CN115882929B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Radio Relay Systems (AREA)

Abstract

本发明公开了一种三级保护机制的卫星遥测应用模式及架构。该应用模式包括:测控分系统监测到有星务生成的正常遥测时下发正常遥测;若无正常遥测并且有总体电路分系统生成的关键遥测时下发关键遥测;若无正常遥测同时无关键遥测时下发自遥测。该卫星架构包括星上不同状态下可分别发送自遥测、关键遥测以及正常遥测的测控分系统;能通过专线收集关键分系统关键遥测的总体电路分系统;能通过总线收集所有分系统正常遥测的星务分系统;其余分系统。本发明基于遥测可靠性分级思想,实现了多级遥测分层应用模式,提供了一种卫星在轨故障状态下依据遥测逐级分析与调试手段,提升了卫星在轨安全与可靠性,具有重要的工程应用价值。

The present invention discloses a satellite telemetry application mode and architecture with a three-level protection mechanism. The application mode includes: the measurement and control subsystem sends normal telemetry when it detects normal telemetry generated by satellite services; sends critical telemetry when there is no normal telemetry and there is critical telemetry generated by the overall circuit subsystem; sends self-telemetry when there is no normal telemetry and no critical telemetry. The satellite architecture includes a measurement and control subsystem that can send self-telemetry, critical telemetry and normal telemetry respectively under different states on the satellite; an overall circuit subsystem that can collect critical telemetry of critical subsystems through dedicated lines; a satellite services subsystem that can collect normal telemetry of all subsystems through a bus; and other subsystems. Based on the idea of telemetry reliability grading, the present invention realizes a multi-level telemetry layered application mode, provides a means of step-by-step analysis and debugging based on telemetry when the satellite is in an on-orbit fault state, improves the safety and reliability of the satellite in orbit, and has important engineering application value.

Description

Satellite telemetry application mode and architecture of three-level protection mechanism
Technical Field
The invention relates to a satellite telemetry application mode and architecture of a three-level protection mechanism, and belongs to the field of satellite overall design.
Background
Current conventional satellite telemetry designs typically use satellite-service generated telemetry as a satellite downlink telemetry package, i.e., normal telemetry is mentioned in this patent. The scheme has high dependence on software and hardware reliability of the satellite system. Once the satellite service system has software and hardware faults, the satellite loses downlink signals, so that the information of the ground to the satellite is lost, the satellite can only be blindly controlled, and the safety of the whole satellite is endangered. The invention breaks through the traditional telemetry design thought, provides telemetry application modes of a normal telemetry, key telemetry and self telemetry three-level protection mechanism, gradually improves telemetry reliability and importance in the application modes, gradually reduces telemetry information coverage, provides a step-by-step analysis and debugging means according to different telemetry in satellite fault states, and improves satellite on-orbit safety and reliability.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a satellite telemetry application mode and architecture of a three-level protection mechanism.
The aim of the invention is realized by the following technical scheme:
A satellite telemetry method of a three-level protection mechanism comprises normal telemetry, key telemetry and self telemetry. The normal telemetry is a telemetry data packet generated by collecting satellite traffic and subsystem engineering telemetry, the key telemetry is a telemetry data packet generated by collecting key engineering telemetry through a point-to-point dedicated line by the overall circuit subsystem, and the self telemetry is a telemetry data packet generated by a measurement and control transponder, and the three telemetry are protected step by step.
The satellite telemetry application mode of the three-level protection mechanism mainly comprises that the measurement and control subsystem transmits normal telemetry when the measurement and control subsystem monitors normal telemetry with the star service generation, the measurement and control subsystem transmits key telemetry when the measurement and control subsystem monitors normal telemetry without the star service generation and transmits self telemetry when the measurement and control subsystem does not have key telemetry generated by the overall circuit subsystem.
The satellite architecture comprises measurement and control subsystems capable of respectively transmitting self-telemetry, key telemetry and normal telemetry under different states on the satellite, an overall circuit subsystem capable of collecting key engineering telemetry of the key subsystems through a point-to-point dedicated line and then generating key telemetry, a satellite subsystem capable of collecting normal engineering telemetry of all subsystems through a bus form and generating normal telemetry, and other subsystems. The measurement and control subsystem is connected with the overall circuit subsystem through a special line, the satellite subsystem is connected with the overall circuit subsystem through a special line, and the other subsystems are connected with the overall circuit subsystem through special lines of the respective subsystems.
Compared with the prior art, the invention has the beneficial effects that:
Different from the traditional single telemetry design of the satellite, the invention provides the normal telemetry, key telemetry and self telemetry concepts, and based on the three telemetry reliability and importance progressive improvement, telemetry information coverage progressive decline, and the progressive layering analysis concept is utilized to realize a multistage telemetry layering application mode.
Drawings
FIG. 1 is a flow chart of a satellite telemetry application mode of a three-level protection mechanism;
FIG. 2 is a schematic diagram of a satellite architecture for a satellite telemetry application mode based on a three-level protection mechanism.
Detailed description of the preferred embodiments
FIG. 1 is a flow chart of a satellite telemetry application mode of a three-level protection mechanism, and the flow chart mainly comprises that a measurement and control subsystem transmits normal telemetry when the measurement and control subsystem monitors normal telemetry with the star service generation, transmits key telemetry when the measurement and control subsystem monitors normal telemetry without the star service generation and transmits self telemetry when the measurement and control subsystem does not have key telemetry generated by the overall circuit subsystem.
FIG. 2 is a schematic view of a satellite architecture for a satellite telemetry application model based on a three-level protection scheme, mainly comprising:
The system comprises a measurement and control subsystem 1 capable of respectively transmitting self-telemetry, key telemetry and normal telemetry under different states on the satellite, a general circuit subsystem 2 capable of collecting key engineering telemetry of the key subsystem through a point-to-point special line and then generating key telemetry, a satellite subsystem 3 capable of collecting normal engineering telemetry of all subsystems and generating normal telemetry through a bus form, and other subsystems 4. The measurement and control subsystem 1, the overall circuit subsystem 2 and the satellite subsystem 3 are connected with the rest subsystem 4 through a bus 5, the measurement and control subsystem 1 is connected with the overall circuit subsystem 2 through a special line 6, the satellite subsystem 3 is connected with the overall circuit subsystem 2 through a special line 7, and the rest subsystems 4 are connected with the overall circuit subsystem 2 through special lines 8 of the respective subsystems.
The following is a detailed description of a satellite telemetry application mode and architecture application example based on a three-level protection mechanism:
The measurement and control subsystem, the overall circuit subsystem and the satellite subsystem are defined by the traditional subsystem, the measurement and control subsystem is characterized by being capable of generating self-telemetry and respectively transmitting the self-telemetry, the key telemetry and the normal telemetry according to different states on the satellite, the overall circuit subsystem is characterized by being capable of collecting key engineering telemetry of the key subsystem through a point-to-point dedicated line and then generating the key telemetry, the fact that the traditional satellite does not have the key telemetry is required to be specially explained, the satellite system is in a new telemetry form provided herein, and the satellite subsystem is characterized by being capable of collecting normal engineering telemetry of all the subsystems through a bus form and generating the normal telemetry. According to the traditional satellite design, from the aspects of satellite component type selection or system reliability design, the reliability ordering of the three subsystems is that a measurement and control subsystem is that of a total circuit subsystem and a satellite service subsystem, so that the reliability ordering of the three telemetry is that of self telemetry is that of key telemetry and normal telemetry. However, as the interactive information quantity of the three sub-systems and the rest sub-systems under the satellite architecture is sequenced as normal telemetry > key telemetry > self telemetry, a mechanism that the reliability is gradually reduced according to the sequence of self telemetry, key telemetry and normal telemetry is formed, and the information quantity is gradually enriched is utilized to form a multistage telemetry layering application mode, and a step-by-step analysis and debugging means according to telemetry under the condition of satellite in-orbit fault which is not possessed by the traditional satellite is provided.
Based on the above definition and description, the bus of the specific embodiment herein uses a CAN bus as an example, and the point-to-point dedicated line between each subsystem uses SPI as an example. The satellite subsystem collects engineering telemetry of each subsystem through the CAN bus, generates normal telemetry packets according to telemetry packet formats, and then sends the normal telemetry packets to the measurement and control subsystem, the overall circuit subsystem collects key engineering telemetry of each subsystem through each SPI dedicated line to generate key telemetry packets, and simultaneously sends the key telemetry packets to the measurement and control subsystem, and the measurement and control subsystem collects connection states of the satellite subsystem and other subsystems and software and hardware states of the satellite subsystem to generate self telemetry packets. The distribution mechanism of the measurement and control subsystem adopts the following strategies that if normal telemetry of the star service is received, normal telemetry is sent to the ground, if normal telemetry of the star service is not received but key telemetry of the overall circuit is received, key telemetry is sent to the ground, and if both normal telemetry of the star service and key telemetry of the overall circuit are not received, self telemetry is sent to the ground.
The previous description of the disclosed examples is provided to enable any person skilled in the art to make or use the present invention. Various modifications to this example will be readily apparent to those skilled in the art. The method is characterized in that the method comprises the steps of determining the number of the satellite telemetry application modes and the architecture examples based on the three-level protection mechanism, wherein the number of the satellite telemetry application modes and the architecture examples are increased and decreased in the measurement and control subsystem, the total circuit subsystem and the satellite service subsystem, and the changes in names of the satellite telemetry application modes and the architecture examples are all within the protection scope of the corresponding claims of the method, and the changes of three telemetry names, the realization subsystem carriers and the like are also within the protection scope of the corresponding claims of the method. Thus, the present invention is not intended to be limited to the examples shown herein but is to be accorded the widest scope consistent with the principles disclosed herein.

Claims (2)

1. The satellite telemetry method of the three-level protection mechanism is characterized by comprising normal telemetry, key telemetry and self telemetry, wherein the normal telemetry is a downlink telemetry data packet generated by collecting satellite trails and subsystem engineering telemetry; the key telemetry is a telemetry data packet generated by the overall circuit subsystem through collecting key engineering telemetry through a point-to-point dedicated line; the satellite service subsystem collects engineering telemetry of each subsystem through a CAN bus, generates normal telemetry packets according to telemetry packet formats and then transmits the normal telemetry packets to the measurement and control subsystem, the overall circuit subsystem collects key engineering telemetry of each subsystem through each SPI special line to generate key telemetry packets and simultaneously transmits the key telemetry packets to the measurement and control subsystem, the measurement and control subsystem collects connection states of the satellite service subsystem and other subsystems and software and hardware states of the satellite service subsystem to generate self telemetry packets, and a distribution mechanism of the measurement and control subsystem adopts the following strategies that if normal telemetry of the satellite service is received, normal telemetry is transmitted to the ground, if normal telemetry of the satellite service is not received, but key telemetry of the overall circuit is transmitted to the ground, and if both normal telemetry of the satellite service and key telemetry of the overall circuit are not received, the self telemetry is transmitted to the ground;
The measurement and control subsystem is connected with the overall circuit subsystem through a special line, the satellite subsystem is connected with the overall circuit subsystem through a special line, and the rest subsystems are connected with the overall circuit subsystem through the special lines of the respective subsystems.
2. A satellite architecture for realizing the method according to claim 1 is characterized by comprising a measurement and control subsystem (1) capable of respectively sending self-telemetry, key telemetry and normal telemetry in different states on a satellite, a general circuit subsystem (2) capable of collecting key engineering telemetry of the key subsystem through a point-to-point dedicated line and then generating the key telemetry, a satellite subsystem (3) capable of collecting normal engineering telemetry of all subsystems through a bus form and generating the normal telemetry, and other subsystems (4), wherein the measurement and control subsystem (1), the general circuit subsystem (2) and the satellite subsystem (3) are connected with the other subsystems (4) through buses (5).
CN202211485808.4A 2022-11-24 2022-11-24 Satellite telemetry application mode and architecture of three-level protection mechanism Active CN115882929B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211485808.4A CN115882929B (en) 2022-11-24 2022-11-24 Satellite telemetry application mode and architecture of three-level protection mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211485808.4A CN115882929B (en) 2022-11-24 2022-11-24 Satellite telemetry application mode and architecture of three-level protection mechanism

Publications (2)

Publication Number Publication Date
CN115882929A CN115882929A (en) 2023-03-31
CN115882929B true CN115882929B (en) 2025-08-01

Family

ID=85763844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211485808.4A Active CN115882929B (en) 2022-11-24 2022-11-24 Satellite telemetry application mode and architecture of three-level protection mechanism

Country Status (1)

Country Link
CN (1) CN115882929B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103944629A (en) * 2014-04-28 2014-07-23 航天东方红卫星有限公司 Satellite integrated electronic system
CN106533527A (en) * 2015-09-15 2017-03-22 北京空间飞行器总体设计部 Reconfigurable satellite telemetering on-orbit monitoring and quantitative management system and realization method
CN110175051A (en) * 2019-04-11 2019-08-27 上海卫星工程研究所 The integrated telemetering configuring management method in star ground
CN112278327A (en) * 2020-10-28 2021-01-29 北京和德宇航技术有限公司 Satellite attitude control abnormity identification and handling system and control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7843359B2 (en) * 2005-12-01 2010-11-30 Electronics And Telecommunications Research Institue Fault management system using satellite telemetering technology and method thereof
CN106342295B (en) * 2011-07-26 2014-03-19 中国航天科技集团公司第五研究院第五一三研究所 Aeronautical satellite platform high-fidelity satellite failure emulation mode
CN105574166A (en) * 2015-12-16 2016-05-11 上海卫星工程研究所 Fault dictionary based satellite fault diagnosis method
CN111815118B (en) * 2020-06-10 2024-03-19 北京空间飞行器总体设计部 A remote sensing satellite autonomous health management system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103944629A (en) * 2014-04-28 2014-07-23 航天东方红卫星有限公司 Satellite integrated electronic system
CN106533527A (en) * 2015-09-15 2017-03-22 北京空间飞行器总体设计部 Reconfigurable satellite telemetering on-orbit monitoring and quantitative management system and realization method
CN110175051A (en) * 2019-04-11 2019-08-27 上海卫星工程研究所 The integrated telemetering configuring management method in star ground
CN112278327A (en) * 2020-10-28 2021-01-29 北京和德宇航技术有限公司 Satellite attitude control abnormity identification and handling system and control method

Also Published As

Publication number Publication date
CN115882929A (en) 2023-03-31

Similar Documents

Publication Publication Date Title
CN106302064B (en) The data transfer optimization method and system of binary-channel redundancy CAN bus for electric vehicle
Ross An overview of FDDI: The fiber distributed data interface
CN106851798A (en) A kind of vehicle network control method and vehicle network system
CN115882929B (en) Satellite telemetry application mode and architecture of three-level protection mechanism
Chockler et al. An adaptive totally ordered multicast protocol that tolerates partitions
Ross Rings are'round for good!
CN101292488A (en) System and method of optimizing the bandwidth of a time triggered communication protocol with homogeneous slot sizes
CN112637277A (en) Station center system based on cloud platform and control method
CN115617551A (en) A Data Placement Method for Optimizing Repair Performance of Locally Recoverable Codes
CN103368693B (en) A kind of method of power distribution network interexchange bus reliable data transmission
CN115759600A (en) An automatic dispatching method for distribution network emergency power generation vehicles under the condition of multi-source and multi-objective
CN102045175B (en) Method and device for sending charging data recording
Takagi et al. Integration of power feeding and train dispatching subsystems to increase railway service capability
CN103220169B (en) A kind of lamellar information stream transmission system for spacecraft
CN113886115A (en) Block chain Byzantine fault-tolerant method and system based on vehicle-road cooperation
CN116232969B (en) Network communication state monitoring and reporting method of network node and vehicle
EP1536594B1 (en) Redundant information transmission system based on two parallel transmission lines and corresponding method
CN117375984A (en) Accurate safety protection method for rail transit vehicle-mounted network
CN114116237B (en) Hierarchical autonomous remote management method for large-scale network equipment
CN116865830A (en) On-board processing-based satellite-borne exchange control device
KR102493211B1 (en) A system and method for supporting integrity and monitoring ess operational information
CN101599923A (en) A vehicle gateway system and its control method
CN115955265A (en) Power dispatching data transmission method applying Beidou third-order communication
CN114465934A (en) Multi-rate flexible configurable Ethernet interface verification method
AU719874B1 (en) Loop data transmission system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant