CN104407949A - Spaceborne module-level redundant backup system and method - Google Patents
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Abstract
The invention discloses a spaceborne module-level redundant backup system and method. The spaceborne module-level redundant backup system is high in internal resource use ratio, strong in equipment reliability and long in life span. Hardware modules are divided according to standards through function types and ports, the hardware modules form a plurality of redundant units capable of finishing machine functions, a plurality of standard functional modules with the same functions are arranged in each redundant unit so as to refine the redundant backup granularity to the functional modules from one machine, the resource waste is reduced, the system use ratio is improved, and the life span and reliability index of an electronic product are improved; by means of the connection of an inside backboard interconnecting standard serial bus system, the module ports are uniform, and the modules can be combined to realize the customization of different redundant unit embedded type computer products; the spaceborne module-level redundant backup system and method realize to quickly build an open computer system structure and solve the problems of long development period, high cost and the like of private embedded type computer customization.
Description
Technical field
The present invention relates to electronic information technical field, be specially a kind of backup method of spaceborne modularity redundancy granularity.
Background technology
At present, electronic equipment on satellite all realizes the design object of self long-life, highly reliable operation in-orbit by redundancy backup.The minimum unit of whole set equipment built-in redundancy backup is " unit ", can comprise multiple mutually redundant unit in a complete machine.Unit mentioned here refers to the computing machine possessing complete function, namely has the electronic product of CPU process, computing, storage and I/O Interface Controller ability.
Electronic equipment on satellite many employings dual-machine redundancy backup mode, two-shipper working method is divided into " heat " and " cold " two type.Two-shipper " heat " backup refers to two-shipper and all powers up work, only has a unit have outbound data and order the control sent, and this unit is otherwise known as " main part " machine; Two-shipper " cold " backup refers to only has a unit to power up work, and another unit does not power up work.The control of two-shipper is realized by redundancy switching mechanism, guarantees that unique unit is to the control of equipment and management." redundancy switching mechanism " realizes unit information output by receiving " Redundant Control instruction " controls to control with power supply management." redundancy switching mechanism " essence is that a kind of voting controls, and under the prerequisite namely determined in unit priority orders, the unit that each unit is the highest to system medium priority is implemented " ballot " and elected.In dual systems, as shown in Figure 1, wherein the unit of second priority level has right of veto by one vote to the block diagram of its dual-machine redundancy backup, can directly " seize power ".In three machine systems, carry out voting ballot by the mode of " getting two in three ".Utilize voting result to realize information and export the control with power supply management.According to three machine hot backup redundancy modes, namely three machines all power up work, only have a unit have outbound data and order the control sent; Its three-basic training backup block diagram as shown in Figure 2.
Under the redundancy switching mode in units of unit, unit all can be caused abnormal when operational blocks which partition system in unit breaks down, the switching of unit ownership occurs then.This switchover policy can cause the waste of effectively module in unit, reduces unit utilization factor and reliability, and then affects reliability and the life-span of whole electronic equipment.
Summary of the invention
For problems of the prior art, the invention provides a kind of device interior resource utilization high, equipment dependability is strong, the standby system of the spaceborne modularity redundancy granularity that the life-span is long and method.
The present invention is achieved through the following technical solutions:
A kind of spaceborne modularity redundancy backup method of the present invention, comprises,
1) hardware module with same function type and interface in being formed by unit is divided into multiple standard feature module; By mutually redundant composition redundancy unit after some standard feature module of the same type setting priority levels, the information of carrying out the standard feature module of the type exports and power supply management;
2) corresponding redundancy switching mechanism is embedded respectively to each standard feature module in all redundancy units; Under the control of redundancy switching mechanism, after the standard feature module of work at present breaks down, corresponding controlling functions is switched in standard feature module that in same redundancy unit, other standards functional module medium priority is the highest;
3) each standard feature module in all redundancy units is all connected in inner backplane interconnects standard serial bus system carries out Signal transmissions, and respectively each redundancy unit is connected on corresponding data and/or control bus; All redundancy units form a complete machine and complete corresponding function.
Preferably, standard feature module comprises CPU module and I/O module; Some CPU module backup each other and form CPU redundancy unit, some I/O modules mutually redundant composition I/O redundancy unit.
Preferably, hot and cold node interconnect is supported in the support of inner backplane interconnects standard serial bus system.
A kind of spaceborne modularity redundancy standby system of the present invention, comprises inner backplane interconnects standard serial bus system, carries out data and/or the control bus of data and message exchange with outside, and for realizing the redundancy unit of different control functions; Described redundancy unit comprises and is somely set with priority level and embeds the standard feature module of redundancy switching mechanism respectively, and standard feature module is have should the same function type of redundancy unit and the hardware module of interface in unit composition; Redundancy switching mechanism is used in the redundancy unit of correspondence, state is normal and the standard feature module that priority is the highest is placed in duty; In system, each redundancy unit standard feature module comprised in redundancy unit is all connected in inner backplane interconnects standard serial bus system and carries out Signal transmissions, each redundancy unit externally has corresponding data and/or control bus, and after all redundancy units connect by controlling functions, a composition complete machine completes corresponding controlling functions.
Preferably, data and/or control bus specifically comprise outbound data bus and external steering order bus.
Further, complete machine is made up of the CPU redundancy unit connected successively and I/O redundancy unit; The CPU redundancy unit connecting external control and data bus comprises some mutually redundant CPU module; I/O redundancy unit comprises some mutually redundant I/O modules, and I/O redundancy unit is respectively with external input data information bus with externally export steering order bus and be connected.
Further again, internal system backplane interconnects standard serial bus system adopts ARINC659 bus, and I/O module adopts ANTC module.
Preferably, the window banging pattern under this system employing time triggered mechanism realizes controlling functions.
Compared with prior art, the present invention has following useful technique effect:
The present invention carries out the division of system standard by function type and interface to hardware module, form multiple redundancy unit that can complete complete machine function, some congenerous standard feature modules are set in redundancy unit, thus the granularity of redundancy backup is refine to functional module by unit, reduce the wasting of resources, improve system availability, reach the object improving electronic product life-span and reliability index; And by the connection of inner backplane interconnects standard serial bus system, its module interface is unified, intermodule can by the customization of the real-time implementation of combination different redundancy unit embedded computer product; Thus set up a kind of Computer Architecture of opening fast, solve the customization of embedded computer special plane, lead time length, high in cost of production problem.
Further, adopt the window banging pattern execution control function under time triggered mechanism, can realize sharing of resource backup and duty, the duty before can preserving, realizes the seamless link of task, guarantees that the continuity of system works is strong.
Further, by being CPU module and I/O module by standard feature Module Division, realized control action and the data-transformation facility of complete machine by both connections, ensure to avoid while granularity division to switch and control complicated loaded down with trivial details and system and cannot to upgrade the problem expanded; Long-life highly reliable spaceborne integronics field can be applicable to better.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of dual-machine redundancy backup in prior art.
Fig. 2 is the functional block diagram of three-basic training backup in prior art.
Fig. 3 is the standard module connection diagram of system of the present invention.
Fig. 4 is the reliability schematic block diagram of unit level redundancy backup in prior art.
Fig. 5 is the reliability schematic block diagram of modularity redundancy of the present invention backup.
The function that the modularity redundancy that Fig. 6 is product described in example of the present invention backs up connects block diagram.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
A kind of spaceborne modularity redundancy backup method of the present invention, it comprises,
1) hardware module with same function type and interface in being formed by unit is divided into multiple standard feature module; By mutually redundant composition redundancy unit after some standard feature module of the same type setting priority levels, the information of carrying out the standard feature module of the type exports and power supply management; In this preferred embodiment, as shown in Figure 3, standard feature module comprises CPU module and I/O module; Some CPU module backup each other and form CPU redundancy unit, some I/O modules mutually redundant composition I/O redundancy unit.
2) corresponding redundancy switching mechanism is embedded respectively to each standard feature module in all redundancy units; Under the control of redundancy switching mechanism, after the standard feature module of work at present breaks down, corresponding controlling functions is switched in standard feature module that in same redundancy unit, other standards functional module medium priority is the highest, as shown in Figure 3;
3) each standard feature module in all redundancy units is all connected in inner backplane interconnects standard serial bus system carries out Signal transmissions, and respectively each redundancy unit is connected on corresponding data and/or control bus; All redundancy units form a complete machine and complete corresponding function, as shown in Figure 3.Wherein, hot and cold node interconnect is supported in the support of inner backplane interconnects standard serial bus system.
A kind of spaceborne modularity redundancy standby system of the present invention, as shown in Figure 6, comprises inner backplane interconnects standard serial bus system, carries out data and/or the control bus of data and message exchange with outside, and for realizing the redundancy unit of different control functions; Described redundancy unit comprises and is somely set with priority level and embeds the standard feature module of redundancy switching mechanism respectively, and standard feature module is have should the same function type of redundancy unit and the hardware module of interface in unit composition; Redundancy switching mechanism is used in the redundancy unit of correspondence, state is normal and the standard feature module that priority is the highest is placed in duty; In system, each redundancy unit standard feature module comprised in redundancy unit is all connected in inner backplane interconnects standard serial bus system and carries out Signal transmissions, each redundancy unit externally has corresponding data and/or control bus, and after all redundancy units connect by controlling functions, a composition complete machine completes corresponding controlling functions.Wherein, data and/or control bus specifically comprise outbound data bus and external steering order bus.Complete machine is made up of the CPU redundancy unit connected successively and I/O redundancy unit; The CPU redundancy unit connecting external control and data bus comprises some mutually redundant CPU module; I/O redundancy unit comprises some mutually redundant I/O modules, and I/O redundancy unit is respectively with external input data information bus with externally export steering order bus and be connected.In this preferred embodiment, internal system backplane interconnects standard serial bus system adopts ARINC659 bus, and I/O module adopts ANTC module; And system adopts the window banging pattern under time triggered mechanism to realize controlling functions.
Concrete, in system of the present invention, hardware module in complete machine is divided by function type and interface, be divided into the standard feature module comprising CPU module and I/O module, the control mode of its respective redundancy handover control mechanism is constant, but correspond to respectively after being split in the middle of standard feature module of the same type, thus make Control granularity be reduced to module level by unit level; All standard feature modules use the universal serial bus of standard as core bus, and got up by core bus by all standard feature model calling, the Redundant Control instruction of Redundant Control mechanism is also transmitted by core bus; As shown in Figure 3, be respectively arranged with N number of CPU module redundancy handover control mechanism corresponding respective respectively with N number of I/O module and be connected separately and externally control and data message, again by its one by one couple together rear composition module level redundancy backup system, complete machine function can be realized by the composition of any one CPU module and I/O module during system cloud gray model.
After adopting this kind of framework, its reliability as shown in Figure 5, contrasts as shown in Figure 4 with the reliability of unit level redundancy backup in prior art; Unit level redundancy backup of the prior art adopts redundancy handover control mechanism to realize redundancy backup after the unit parallel connection two being comprised respectively CPU module and I/O module, but when main frame interior section module breaks down, need stagnate whole main frame and be switched on standby host, the actual module do not broken down on main frame is also forced to stopped work, cause great waste, if its fiduciary level is one, the reliability of modularity redundancy backup is as shown in Figure 5 exactly six; As shown in Figure 5, wherein only corresponding respective in CPU module redundancy handover control mechanism, get involved in after both parallel connections in I/O module in parallel, CPU module and I/O module form a complete machine and complete corresponding function again; When any a piece in CPU module and I/O module occurs abnormal, the normal work of system can be guaranteed after module enforcement replacement of the same type only need be adopted to reconfigure, continue the functional task of finishing equipment.This redundancy switch mode can improve device interior resource utilization, cuts the waste, and improves equipment dependability and life-span.
System of the present invention is compared with the self-defined parallel bus used in system in the past, and standard rear panel bus has unified interface, facilitates system to expand and restructuring.Solve the customization of embedded computer special plane, lead time length, high in cost of production problem.Wherein, the combination of operational blocks which partition system, can meet different task demand, has computing machine fast custom ability.For real-time system, " Hot Spare " electronic system of multi-CPU module and I/O module can be built; For the system of long-life demand, " cold standby " electronic system of multi-CPU module and I/O module can be built.Just come to be specifically described the electronic system of two types respectively by concrete example below.
Select ARINC659 bus as core bus in specific product, it is made up of 2 class, 5 standard feature modules, and as shown in Figure 6, wherein 3 pieces of CPU module, 2 pieces of ANTC modules, ANTC module belongs to the one of I/O module.5 standard feature modules are all serially connected in core bus ARINC659 bus.Functionally, 3 pieces of CPU module backup each other and form CPU redundancy unit, and 2 pieces of ANTC modules backup each other and form I/O redundancy unit.When redundancy unit performs corresponding controlling functions, only has the standard feature module work that priority is the highest.
When " cold standby " electronic system of fast custom two mould; Powered up to CPU module 1 by supply module.After CPU module 1 startup work, powered up to ANTC module 1 by the redundancy switching mechanism of ANTC module redundancy unit, product introduction normal mode of operation: CPU module 1 is by external control and the outside issuing control order of data bus, and collect related data information, realize information interaction by ARINC659 bus and ANTC module 1.ANTC module 1 realizes the acquisition function of external analog amount information and the transmission to external instruction by outer input data bus and the external steering order bus that exports.CPU module 1 is by the health status of ARINC659 bus timing monitoring ANTC module 1, and when finding it to utilize the redundancy switching mechanism of corresponding A NTC module 1 to forbid time abnormal, ANTC module 1 works, and enable ANTC module 2 works, and performs redundancy and switches 4.When CPU module 1 breaks down, the redundancy switching mechanism of corresponding CPU module 1 forbids that CPU module 1 works, and enable CPU module 2 works, and performs redundancy and switches 1.
As seen from Figure 6: CPU module and any ANTC module may be combined with work arbitrarily, form unit to finish the work.Compared with unit level redundant fashion, modularity redundancy backup improves resource utilization, decreases unnecessary waste, improves life-span and the reliability of product.
During fast custom three mould " Hot Spare " electronic system; Powered up to CPU module 1, CPU module 2, CPU module 3 by supply module.In three CPU module, CPU module 1 has limit priority, and other module is according to numbering priority level, and the CPU module of high priority has the control to system.CPU module 1 is powered up to ANTC module 1 by the redundancy switching mechanism of ANTC module redundancy unit.CPU module 1 by external control and the outside issuing control order of data bus, and collects related data information, realizes information interaction by core bus and ANTC module 1.ANTC module 1 can realize the acquisition function of external analog amount information and the transmission to external instruction.CPU module 1 is by the health status of core bus periodic monitor ANTC module 1, and when finding it to utilize the redundancy switching mechanism of its correspondence to forbid time abnormal, ANTC module 1 works, and enable ANTC module 2 works, and performs redundancy and switches 4.CPU module 2 and the health status of CPU module 3 by core bus periodic monitor CPU module 1, isolated by the redundancy switching mechanism teaching display stand of himself when finding that it is abnormal and close, perform redundancy and switch 1, meanwhile, the ownership that CPU module 2 obtains system continues to finish the work.
Claims (8)
1. a spaceborne modularity redundancy backup method, is characterized in that, comprise,
1) hardware module with same function type and interface in being formed by unit is divided into multiple standard feature module; By mutually redundant composition redundancy unit after some standard feature module of the same type setting priority levels, the information of carrying out the standard feature module of the type exports and power supply management;
2) corresponding redundancy switching mechanism is embedded respectively to each standard feature module in all redundancy units; Under the control of redundancy switching mechanism, after the standard feature module of work at present breaks down, corresponding controlling functions is switched in standard feature module that in same redundancy unit, other standards functional module medium priority is the highest;
3) each standard feature module in all redundancy units is all connected in inner backplane interconnects standard serial bus system carries out Signal transmissions, and respectively each redundancy unit is connected on corresponding data and/or control bus; All redundancy units form a complete machine and complete corresponding function.
2. the spaceborne modularity redundancy backup method of one according to claim 1, is characterized in that, described standard feature module comprises CPU module and I/O module; Some CPU module backup each other and form CPU redundancy unit, some I/O modules mutually redundant composition I/O redundancy unit.
3. the spaceborne modularity redundancy backup method of one according to claim 1, is characterized in that, hot and cold node interconnect is supported in described inside backplane interconnects standard serial bus system support.
4. a spaceborne modularity redundancy standby system, is characterized in that, comprises inner backplane interconnects standard serial bus system, carries out data and/or the control bus of data and message exchange with outside, and for realizing the redundancy unit of different control functions; Described redundancy unit comprises and is somely set with priority level and embeds the standard feature module of redundancy switching mechanism respectively, and standard feature module is have should the same function type of redundancy unit and the hardware module of interface in unit composition; Redundancy switching mechanism is used in the redundancy unit of correspondence, state is normal and the standard feature module that priority is the highest is placed in duty; In system, each redundancy unit standard feature module comprised in redundancy unit is all connected in inner backplane interconnects standard serial bus system and carries out Signal transmissions, each redundancy unit externally has corresponding data and/or control bus, and after all redundancy units connect by controlling functions, a composition complete machine completes corresponding controlling functions.
5. the spaceborne modularity redundancy standby system of one according to claim 4, is characterized in that, described data and/or control bus specifically comprise outbound data bus and external steering order bus.
6. the spaceborne modularity redundancy standby system of one according to claim 5, is characterized in that, described complete machine is made up of the CPU redundancy unit connected successively and I/O redundancy unit; The CPU redundancy unit connecting external control and data bus comprises some mutually redundant CPU module; I/O redundancy unit comprises some mutually redundant I/O modules, and I/O redundancy unit is respectively with external input data information bus with externally export steering order bus and be connected.
7. the spaceborne modularity redundancy standby system of one according to claim 6, is characterized in that, described internal system backplane interconnects standard serial bus system adopts ARINC659 bus, and I/O module adopts ANTC module.
8. the spaceborne modularity redundancy standby system of one according to claim 4, is characterized in that, this system adopts the window banging pattern under time triggered mechanism to realize controlling functions.
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Cited By (11)
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| CN105550131A (en) * | 2015-12-11 | 2016-05-04 | 中国航空工业集团公司西安航空计算技术研究所 | Finite-state machine and ARINC659 bus based interface data processing system and method |
| CN109194213A (en) * | 2018-09-27 | 2019-01-11 | 上海航天测控通信研究所 | A kind of warm back-up control circuit of spaceborne stepper motor driving circuit |
| CN110244549A (en) * | 2019-06-18 | 2019-09-17 | 北京电子工程总体研究所 | A kind of control model intelligent management of satellite control system |
| CN110311725A (en) * | 2019-07-12 | 2019-10-08 | 中国空间技术研究院 | Modular Design Method of Spaceborne Transponder Backup Ring |
| CN110865587A (en) * | 2019-12-05 | 2020-03-06 | 中车大连电力牵引研发中心有限公司 | Input/output device based on discrete high-speed redundancy switching |
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| CN113063395A (en) * | 2021-03-19 | 2021-07-02 | 星众空间(北京)科技有限公司 | Four-quadrant differential analog double-hole sun sensor |
| CN115047750A (en) * | 2022-08-15 | 2022-09-13 | 中国电子科技集团公司第十五研究所 | Non-inductive backup circuit board |
| CN116961738A (en) * | 2023-09-21 | 2023-10-27 | 中国西安卫星测控中心 | Off-site incomplete backup method for key tracking arc section of aerospace measurement and control network |
| CN118316514A (en) * | 2023-05-16 | 2024-07-09 | 北京星移联信科技发展有限公司 | A satellite-borne digital processing unit and a design method for a satellite-borne digital processing unit |
| CN118672120A (en) * | 2024-08-19 | 2024-09-20 | 浙江国利信安科技有限公司 | Redundancy controller for performing redundancy control |
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| CN110865587A (en) * | 2019-12-05 | 2020-03-06 | 中车大连电力牵引研发中心有限公司 | Input/output device based on discrete high-speed redundancy switching |
| CN112180712A (en) * | 2020-09-27 | 2021-01-05 | 四川九洲空管科技有限责任公司 | Integrated monitoring system |
| CN113063395A (en) * | 2021-03-19 | 2021-07-02 | 星众空间(北京)科技有限公司 | Four-quadrant differential analog double-hole sun sensor |
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| CN118316514A (en) * | 2023-05-16 | 2024-07-09 | 北京星移联信科技发展有限公司 | A satellite-borne digital processing unit and a design method for a satellite-borne digital processing unit |
| CN116961738A (en) * | 2023-09-21 | 2023-10-27 | 中国西安卫星测控中心 | Off-site incomplete backup method for key tracking arc section of aerospace measurement and control network |
| CN116961738B (en) * | 2023-09-21 | 2023-12-26 | 中国西安卫星测控中心 | Off-site incomplete backup method for key tracking arc section of aerospace measurement and control network |
| CN118672120A (en) * | 2024-08-19 | 2024-09-20 | 浙江国利信安科技有限公司 | Redundancy controller for performing redundancy control |
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