CN104636261A - Main test processor and dynamic remote control command management method thereof - Google Patents
Main test processor and dynamic remote control command management method thereof Download PDFInfo
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- CN104636261A CN104636261A CN201310545487.7A CN201310545487A CN104636261A CN 104636261 A CN104636261 A CN 104636261A CN 201310545487 A CN201310545487 A CN 201310545487A CN 104636261 A CN104636261 A CN 104636261A
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Abstract
The invention provides a main test processor and a dynamic remote control command management method of the main test processor. The method comprises the steps that after the main test processor is started, a continuous sharing space is selected from an internal storage as a remote control command region through the runtime environment of the main test processor; all remote control commands are read out of a remote control command parameter database through the runtime environment; serial numbers of the remote control commands are adopted as keywords, and the storage positions of all the remote control commands in the remote control command region are calculated according to the Hash algorithm; parameter information relevant to all the remote control commands is stored at the corresponding storage positions in the remote control command region. Therefore, the design of the main test processor on remote control command sending management is optimized, the addressing speed of the remote control commands is improved, and the command sending responding speed and command management efficiency of the main test processor are improved.
Description
Technical field
The present invention relates to spacecraft automatization testing technique field, more specifically, relating to a kind of main test handler dynamic telecommand management method and main test handler, showing for utilizing Hash (hereinafter referred to as HASH) to carry out the foundation of main test handler telecommand parameter list, retrieval and renewal.The present invention is particularly useful for main test handler telecommand management application aspect in the spacecraft integration test implementation systems such as telstar, manned spacecraft, Navsat, remote sensing satellite.
Background technology
Main test handler is a kernel software in satellite comprehensive testing implementation system, and telecommand sends the critical function that management is it.In addition, main test handler runtime environment provides general running environment for various model satellite test, provides the management comprised sharing data area and main test handler card cage, is the core of whole main test handler software.
At present, based on the main test handler of earlier satellite platform development, telecommand leaves the telecommand district in shared drive in the form of unsorted list, main test handler is to all operations of telecommand and manage all based on unsorted list element access technique, when namely setting up telecommand list, the parameter information of each bar instruction is left successively in the adjacent position in telecommand district, need during an arbitrary element in access list to check instruction list element successively from instruction list first element, until find respective element or arrive list tail.
The telecommand mode of management of above-mentioned this main test handler is the simplest method of one, achieves the function of main test handler runtime environment and the operation of each service processes and management telecommand parameter information.Because earlier satellite platform and loading device are relatively less, telecommand number is less, and this instruction way to manage is not obvious for satellite comprehensive testing impact.Along with the development of high-capacity platform, Novel platform satellite, the application of Integrated Electronic System on star, and platform device and loading device kind trend complicated, satellite remote command is more and more many, indirect instruction is also more and more many, therefore, need strictly to control to instruction illegal state in integration test process.On the other hand, satellite test requires higher to the response speed of integration test implementation system, and two usually can be required to send command interval is continuously several seconds.In addition, along with the development of automatization testing technique, require that main test handler can be made instruction transmit operation and instruction management and respond faster.
Owing to can decline along with the increase of list length to the retrieval performance of unsorted list, so when telecommand number increases, telecommand list can become longer, can obviously worsen the performance of longer instruction list retrieval.Therefore, this telecommand of main test handler way to manage is not suitable for the management of large telecommand table.
Should be appreciated that, Hash table is widely used in storage administration aspect owing to having the fast advantage of search speed.Specifically can reference, in " a kind of memory management Design Mode " that the Xu Dongmei etc. recorded in computer technology with development writes, a kind of Design Mode of memory manager is proposed, wherein adopt the form of memory manager and object to realize memory management, and adopt HASH array to facilitate searching of object.In " a kind of heap formula dynamic storage management method based on many Hash tables " that the Sun Lingyu etc. recorded in Jinggangshan Normal College Journal (natural science) writes, propose a kind of heap formula dynamic storage management method based on many Hash tables.In addition, in " research of Moving objects database internal memory index technology " of being write by Wang Cuixiang in Nanjing Univ. of Posts and Telecommunications's Master's thesis, also HASH table is applied to the management of internal storage data in Traffic Information.In " storage of Embedded Main Memory Database and Index Algorithm research " that the Song Ling etc. recorded in computer science with exploration writes, HASH table is applied in the data storage algorithm of Embedded Main Memory Database.In addition, in the CN101706719A patent of Xu Qing, a kind of resource management method of integrated pipe network in three-dimensional visualization mapped based on HASH is disclosed.In the CN101419571 patent of Guo Jian, disclose a kind of method of storage configuration parameter in NOR FLASH based on HASH algorithm, its adopts HASH chained list for representing the mapping relations between configuration parameter partition data and internal storage data.In the CN101290635 patent of Liu Yiyuan, disclose a kind of EMS memory management process and device thereof of feature based word, it adopts HASH algorithm to process the tagged word to be found distribution according to algorithm of Address Generation and storage space.Finally, in the CN101350010 patent of Maipu (Sichuan) Communication Technology Co., Ltd., disclose the method for Hash table operation under a kind of Slave Parallel multi-core processor system, it provide the method for operating that a kind of HASH shows, in master-slave mode multi-core processor system, can create HASH table efficiently, the operation such as insertion, and the aforesaid operations that HASH show does not affect HASH table search performance.
Therefore, be badly in need of a kind of telecommand parameter information Managed Solution, the foundation of telecommand table, retrieval and renewal can be realized quickly and easily.
Summary of the invention
In order to overcome the shortcoming of unsorted telecommand list, the invention provides a kind of scheme, can set up, retrieve and update mechanism based on the main test handler telecommand table of HASH table, realize telecommand dynamic management, thus solve the problem of realization difficulty and the low-response existed in prior art.
First, an important means of data sharing in enormous quantities between the shared drive process that to be unix environment provide for user, therefore, the present invention selects shared drive to carry out the storage of telecommand parameter information.In addition, owing to adopting HASH table can obtain than search speed faster, therefore, the present invention have selected the storage organization of HASH table as telecommand parameter information in shared drive.
In the present invention, in main test handler, telecommand management method relates to telecommand district, main test handler runtime environment, hard disk telecommand parameter database, telecommand management service, telecommand transmission service.Telecommand district is one piece of continuous space in shared drive, deposits telecommand parameter list.Main test handler runtime environment reads telecommand parameter database when system starts, and sets up the telecommand parameter list in telecommand district.Telecommand management service dynamically updates telecommand in telecommand parameter according to telecommand numbering and sends control information.Telecommand sends service and sends control information according to the parameter instruction of telecommand numbering acquisition telecommand.
Particularly, the invention provides the dynamic telecommand management method of a kind of main test handler, comprising: step one, after main test handler starts, by the runtime environment of main test handler, in internal memory, select one piece of continuous print communal space as telecommand district; Step 2, is read all telecommands by runtime environment from telecommand parameter database; Step 3, is numbered key word with telecommand, calculates the memory location of each telecommand in telecommand district according to hash algorithm; And step 4, the parameter information about each telecommand is stored in the corresponding stored position in telecommand district.
In the present invention, the size in telecommand district can be set by runtime environment.
Preferably, perform in step one: in telecommand district, set up the Hash parameter table about telecommand; The storage space territory of Hash parameter table is set as maximumly store instruction strip number; And calculate the first address of the Hash parameter table in telecommand district.
Alternatively, when telecommand supervisor services needs to change parameter information corresponding in telecommand one, method of the present invention is further comprising the steps of: be numbered key word with a telecommand, calculates the memory location of telecommand in telecommand district according to hash algorithm; And the parameter information that change memory location is corresponding.
Alternatively, when telecommand send service routine need to obtain parameter information corresponding in telecommand one time, method of the present invention is further comprising the steps of: be numbered key word with a telecommand, calculates the memory location of telecommand in telecommand district according to hash algorithm; And obtain parameter information corresponding to memory location.
In addition, present invention also offers a kind of main test handler, for showing based on static HASH, dynamically the parameter information of telecommand is managed, it comprises: instruction area setting module, after starting when main test handler, in internal memory, select one piece of continuous print communal space as telecommand district; Instruction fetch module, for reading all telecommands from telecommand parameter database; Position computation module, for being numbered key word, calculating the memory location of each telecommand in telecommand district according to hash algorithm with telecommand; And information storage module, for the parameter information about each telecommand being stored in the corresponding stored position in telecommand district.
Wherein, instruction area setting module is also for arranging the size in telecommand district.
Preferably, in instruction area, setting module comprises: Hash table sets up assembly, for setting up the Hash parameter table about telecommand in telecommand district; Space assignment component, maximumly stores instruction strip number for being set as in the storage space territory of Hash parameter table; First address computation module, for calculating the first address of the Hash parameter table in telecommand district.
Alternatively, main test handler according to the present invention also comprises: parameter information change module, for when needing to change one in telecommand corresponding parameter information, being numbered key word, calculating the memory location of telecommand in telecommand district according to hash algorithm with a telecommand, and change parameter information corresponding to memory location; Or parameter information acquisition module, for when needing to obtain one in telecommand corresponding parameter information, key word is numbered with a telecommand, calculate the memory location of telecommand in telecommand district according to hash algorithm, and obtain parameter information corresponding to memory location.
Therefore, following advantage can be realized by the present invention:
One, adopt HASH algorithm to carry out the management of internal memory telecommand, optimize main test handler to the managerial design of telecommand, speeded the addressing speed of telecommand, thus improve main test handler instruction transmission response speed and the instruction efficiency of management;
Two, adopt HASH algorithm to carry out the management of internal memory telecommand, addressing speed does not affect by instruction strip number substantially, makes the impact of system handling property not by the restriction of telecommand increasing number, also makes the enforcement of indirect instruction prohibiting function become possibility simultaneously;
Three, adopt HASH algorithm to carry out the management of internal memory telecommand, shorten telecommand surface handling time, provide condition for continual command sends limited class testing project implementation interval time; And
Four, adopt HASH algorithm to carry out the management of internal memory telecommand, make main test handler possess better real-time, alleviate the burden of main test handler, improve the work efficiency of main test handler, for the development of automatization testing technique contributes.
Accompanying drawing explanation
Fig. 1 is the schematic diagram according to main test handler telecommand of the present invention management work;
Fig. 2 is the process flow diagram set up according to the telecommand HASH table of the specific embodiment of the present invention;
Fig. 3 is the process flow diagram by order number retrieval telecommand parameter according to the specific embodiment of the present invention;
Fig. 4 is the process flow diagram of the telecommand update process according to the specific embodiment of the present invention; And
Fig. 5 is the block diagram according to main test handler of the present invention.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is described in detail.
First, an important means of data sharing in enormous quantities between the shared drive process that to be unix environment provide for user, the present invention selects shared drive to carry out the storage of telecommand parameter information.Owing to adopting HASH table can obtain than search speed faster, the storage organization that the present invention selects HASH to show as telecommand parameter information in shared drive.
Fig. 1 is the schematic diagram according to main test handler telecommand of the present invention management work.As shown in Figure 1, main test handler telecommand management work principle is as follows:
After main test handler starts, first in internal memory, open up one piece of continuous communal space as telecommand district by its runtime environment.Then whole telecommand reads by telecommand parameter database by runtime environment, be numbered key word with telecommand and calculate the memory location of each telecommand in telecommand district according to HASH algorithm, and telecommand parameter information is stored in corresponding position in telecommand district.For ensureing that each service processes of shared telecommand table accurately can obtain telecommand table feature, it is anterior that telecommand table relevant information is stored in telecommand district by runtime environment.The size of HASH table can allow at most instruction strip number to determine by system.When telecommand supervisor services needs change telecommand to send control information, first be numbered key word with telecommand and calculate the memory location of corresponding telecommand in telecommand district according to HASH algorithm, then change this remote position control instruction and send control information.Telecommand sends service routine when needing to obtain the correlation parameter information of telecommand, need first to be numbered key word with telecommand and calculate the memory location of corresponding telecommand in telecommand table according to HASH algorithm, then obtain this remote position control instruction correlation parameter information.
Should be appreciated that, the storage space in telecommand district is one piece of continuous print shared memory space of distributing before telecommand table is set up, the data structure of telecommand table adopts static HASH to show, and being numbered key word according to the memory location of each telecommand in telecommand district that HASH algorithm calculates with telecommand is relative position relative to telecommand heading address; The contention resolution of HASH algorithm is linear probing method.
Fig. 2 is the process flow diagram set up according to the telecommand HASH table of the specific embodiment of the present invention.As shown in Figure 2, telecommand HASH table Establishing process comprises:
1) the relevant telecommand relevant configuration information of system is obtained;
2) open up one piece of continuous print shared memory space, and to set this shared memory space be telecommand district;
3) read telecommand parameter database, obtain whole command information;
4) telecommand table relevant information is set, calculates telecommand parameter list first address in telecommand district;
5) judge that telecommand table loads in telecommand district whether to complete, if loaded, terminated program and run, otherwise run the 6th step;
6) the telecommand parameter information that acquisition one is new;
7) order number is calculated the relative position i of telecommand parameter information in telecommand table as keyword root according to HASH algorithm; And
8) calculate the memory address of telecommand parameter information in telecommand district according to " first address+i ", and store telecommand parameter information.The 5th step is jumped to after storage completes.
But, when loading the telecommand HASH table that telecommand parameter list is set up in telecommand district, should be noted that, first the storage space territory setting telecommand table in telecommand district is maximumly store instruction strip number, show to set up for telecommand parameter HASH and telecommand parameter search time use.
HASH function selects leaving remainder method.Because telecommand is numbered character string, therefore, first the present invention selects function order number being converted to numeral, and makes the numeral after changing have uniform distribution.In HASH function, dividend is the numeral after order number conversion, and divisor is the storage space thresholding of telecommand table.Conflict processing method select linear probe method, namely after there is address conflict, selects adjacent next address for detecting address.
Fig. 3 is the process flow diagram by order number retrieval telecommand parameter according to the specific embodiment of the present invention.As shown in Figure 3, comprise by order number retrieval telecommand parameter flow process:
1) from shared drive telecommand district, telecommand table relevant information is obtained;
2) telecommand parameter list first address in telecommand district is obtained;
3) order number is calculated the relative position i of telecommand parameter information in telecommand district as keyword root according to HASH algorithm; And
4) memory address of telecommand parameter information in telecommand district is calculated according to " first address+i ", from telecommand district, telecommand parameter information is obtained according to this memory address, if telecommand parameter exists, this order parameter is provided, otherwise is returned as sky.
Fig. 4 is the process flow diagram of the telecommand update process according to the specific embodiment of the present invention.As shown in Figure 4, telecommand attribute update process flow process comprises:
1) telecommand parameter information change order is received;
2) telecommand attribute changes type is judged, if by order number change, jump to the 3rd step, if change whole instruction attributes by subsystem, jump to the 8th step, if whole instruction attributes need be changed, jump to the 13rd step;
3) from shared drive telecommand district, telecommand table relevant information is obtained;
4) telecommand district telecommand parameter list first address is obtained;
5) telecommand numbering is calculated the relative position i of telecommand parameter information in telecommand district as keyword root according to HASH algorithm;
6) memory address of telecommand parameter information in telecommand district is calculated according to " first address+i ", from telecommand district, telecommand parameter information is obtained according to this memory address, if telecommand parameter exists, this order parameter is provided, otherwise is returned as sky;
7) the telecommand parameter returned is changed, end program after completing;
8) telecommand district telecommand parameter list first address is obtained;
9) from telecommand parameter list, an instruction is got;
10) judge whether current telecommand belongs to this subsystem, if jump to the 10th step, otherwise jump to the 9th step;
11) current telecommand parameter information is changed;
12) judge whether to arrive telecommand parameter list end, run if terminate program, noly jump to the 9th step;
13) telecommand district telecommand parameter list first address is obtained;
14) instruction is got from telecommand parameter list;
15) current telecommand parameter information is changed; And
16) judge whether to arrive telecommand parameter list end, run if terminate program, noly jump to the 14th step.
Fig. 5 is the block diagram according to main test handler of the present invention.As shown in Figure 5, main test handler 500 according to the present invention comprises: instruction area setting module 502, after starting when main test handler 500, selects one piece of continuous print communal space as telecommand district in internal memory; Instruction fetch module 504, for reading all telecommands from telecommand parameter database; Position computation module 506, for being numbered key word, calculating the memory location of each telecommand in telecommand district according to hash algorithm with telecommand; And information storage module 508, for the parameter information about each telecommand being stored in the corresponding stored position in telecommand district.
Wherein, instruction area setting module 502 is also for arranging the size in telecommand district.
Preferably, comprise at instruction area setting module 502: Hash table sets up assembly, for setting up the Hash parameter table about telecommand in telecommand district; Space assignment component, maximumly stores instruction strip number for being set as in the storage space territory of Hash parameter table; First address computation module, for calculating the first address of the Hash parameter table in telecommand district.
Alternatively, main test handler 500 according to the present invention also comprises: parameter information change module 510, for when needing to change one in telecommand corresponding parameter information, being numbered key word, calculating the memory location of telecommand in telecommand district according to hash algorithm with a telecommand, and change parameter information corresponding to memory location; Or parameter information acquisition module 512, for when needing to obtain one in telecommand corresponding parameter information, key word is numbered with a telecommand, calculate the memory location of telecommand in telecommand district according to hash algorithm, and obtain parameter information corresponding to memory location.
In addition, in order to verify the effect of the dynamic telecommand administrative skill of main test handler based on HASH table, with culminant star-11 satellite first sample order parameter for object is verified.First, this satellite has instruction 5545, choose the instruction of No. 1122133, instruction gauge outfit place, distance instruction gauge outfit about 1/4 table strong point No. 1134033 instructions, No. 1117051 instructions of distance instruction gauge outfit about 1/2 table strong point, No. 1224115 instructions of distance instruction gauge outfit about 3/4 table strong point, instruction list ending place No. 1232036 instructions, No. 0000029 instruction of instruction list distance ending about 3/100 table strong point herein respectively, the unsorted list address-time of these instructions and HASH table addressing time are contrasted.Table 1 shows the contrast situation of list address-time and hash table addressing time, and wherein, address-time unit is millisecond.
Table one
| Coded instructions | Without sorted lists address-time | The hash table addressing time | Speed improvement factor |
| 1122133 | 8.724 | 7.798 | 1.12 |
| 1134033 | 25.518 | 9.688 | 2.633 |
| 1117051 | 91.125999 | 8.702 | 10.472 |
| 1224115 | 124.397999 | 11.438 | 10.88 |
| 1232036 | 157.901993 | 7.78 | 20.296 |
| 0000029 | 146.427994 | 9.26 | 15.813 |
Therefore, as can be seen from Table 1, be positioned at the instruction of telecommand tabular gauge outfit, HASH table comparatively slightly improves without row Room list sub-location speed, and distance gauge outfit is far away, and HASH table comparatively improves more obvious without sorted lists addressing speed.Be positioned at the instruction of telecommand table list tail, HASH table is comparatively without the maximum raising of sorted lists addressing speed about 20.3 times.Experimentally result can be reached a conclusion, and HASH table technology can be used to carry out main test handler instruction management.Can conclude, along with the expansion of Future Satellite instruction number, using main test handler table to carry out main test handler instruction management will greatly reduce instruction management and the operation response time of main test handler simultaneously.
Adopt culminant star-11 satellite first sample order parameter to this proof of algorithm, the telecommand addressing speed under worst case improves 20.3 times.Therefore, present invention optimizes main test handler and managerial design is sent to telecommand, speeded the addressing speed of telecommand, thus improve main test handler instruction transmission response speed and the instruction efficiency of management.
Adopt the present invention, optimize main test handler to the managerial design of telecommand, speeded the addressing speed of telecommand, thus improve main test handler instruction transmission response speed and the instruction efficiency of management.Addressing speed does not affect by instruction strip number substantially, makes the impact of system handling property not by the restriction of telecommand increasing number, also makes the enforcement of indirect instruction prohibiting function become possibility simultaneously.Shorten telecommand surface handling time, provide condition for continual command sends limited class testing project implementation interval time.Adopt HASH algorithm to carry out the management of internal memory telecommand, make main test handler possess better real-time, alleviate the burden of main test handler, improve the work efficiency of main test handler, for the development of automatization testing technique contributes.
In the present invention, undeclared part belongs to the known technology of this area.
Claims (10)
1. the dynamic telecommand management method of main test handler, for based on static Hashing table, dynamically manages the parameter information of telecommand, it is characterized in that, comprise the following steps:
Step one, after main test handler starts, selects one piece of continuous print communal space as telecommand district by the runtime environment of described main test handler in internal memory;
Step 2, is read all telecommands by described runtime environment from telecommand parameter database;
Step 3, is numbered key word with described telecommand, calculates the memory location of each telecommand in described telecommand district according to hash algorithm; And
Step 4, is stored in the corresponding stored position in described telecommand district by the parameter information about each telecommand described.
2. the dynamic telecommand management method of main test handler according to claim 1, is characterized in that, can be arranged the size in described telecommand district by described runtime environment.
3. the dynamic telecommand management method of main test handler according to claim 1, is characterized in that, performs in described step one:
The Hash parameter table about telecommand is set up in described telecommand district;
The storage space territory of described Hash parameter table is set as maximumly store instruction strip number; And
Calculate the first address of the described Hash parameter table in described telecommand district.
4. the dynamic telecommand management method of main test handler according to claim 1, is characterized in that, when telecommand supervisor services needs to change parameter information corresponding in described telecommand one, further comprising the steps of:
Be numbered key word with a described telecommand, calculate the described memory location of a telecommand in described telecommand district according to described hash algorithm; And
Change the parameter information that described memory location is corresponding.
5. the dynamic telecommand management method of main test handler according to claim 1, is characterized in that, when telecommand send service routine need to obtain parameter information corresponding in described telecommand one time, further comprising the steps of:
Be numbered key word with a described telecommand, calculate the described memory location of a telecommand in described telecommand district according to described hash algorithm; And
Obtain the parameter information that described memory location is corresponding.
6. a main test handler, for showing based on static HASH, dynamically managing the parameter information of telecommand, it is characterized in that, comprising:
Instruction area setting module, after starting when main test handler, selects one piece of continuous print communal space as telecommand district in internal memory;
Instruction fetch module, for reading all telecommands from telecommand parameter database;
Position computation module, for being numbered key word, calculating the memory location of each telecommand in described telecommand district according to hash algorithm with described telecommand; And
Information storage module, for being stored in the corresponding stored position in described telecommand district by the parameter information about each telecommand described.
7. main test handler according to claim 6, is characterized in that, described instruction area setting module is also for arranging the size in described telecommand district.
8. main test handler according to claim 6, is characterized in that, in described instruction area, setting module comprises:
Hash table sets up assembly, for setting up the Hash parameter table about telecommand in described telecommand district;
Space assignment component, maximumly stores instruction strip number for being set as in the storage space territory of described Hash parameter table;
First address computation module, for calculating the first address of the described Hash parameter table in described telecommand district.
9. main test handler according to claim 6, is characterized in that, also comprise:
Parameter information change module, for when needing to change one in described telecommand corresponding parameter information, being numbered key word, calculating the described memory location of a telecommand in described telecommand district according to described hash algorithm with a described telecommand, and change parameter information corresponding to described memory location.
10. main test handler according to claim 6, is characterized in that, also comprise:
Parameter information acquisition module, for when needing to obtain one in described telecommand corresponding parameter information, key word is numbered with a described telecommand, calculate the described memory location of a telecommand in described telecommand district according to described hash algorithm, and obtain parameter information corresponding to described memory location.
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