CN103763088B - Precise time unified management method for centralized serial feature data stream - Google Patents
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- CN103763088B CN103763088B CN201410031611.2A CN201410031611A CN103763088B CN 103763088 B CN103763088 B CN 103763088B CN 201410031611 A CN201410031611 A CN 201410031611A CN 103763088 B CN103763088 B CN 103763088B
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Abstract
The invention relates to a precise time unified management method for a centralized serial feature data stream, and particularly relates to the following steps that in the centralized information system, the serial feature data stream is transmitted through a serial data channel in a reciprocating and interactive mode, after a time synchronization, a comparison monitoring and a calibration, centralized unified management of time is achieved; the reciprocating and interactive transmission comprises the following steps that 1, data identification and device/ clock characteristic data are filled into the serial feature data to be sent by a device, a device transmission time is recorded and the serial feature data is sent; 2, after the clock responses and receives the serial feature data, a device receipt time is recorded, the device/clock characteristic data is updated, a clock transmission time is recorded and then the serial feature data returns to the device; 3, after the device receives the serial feature data, a clock receipt time is recorded, the device/clock characteristic data is renewed, a second device transmission time is recorded, and then the serial feature data returns to the clock; 4, after the clock receives the serial feature data, a second clock receipt time is recorded. The precise time unified management method for the centralized serial feature data stream is capable of achieving precise time synchronization and is easy to operate.
Description
(1), technical field: the present invention relates to a kind of method for synchronizing time, particularly to a kind of centralized serial nature number
Precise time Explore of Unified Management Ideas according to stream.
(2), background technology: along with the development of China's industrial and agricultural production, the construction of each domain information system have also been obtained and flies
Speed development, for meeting the requirement to Time and Frequency Synchronization of each production information system, improves integrated information system reliability of operation, peace
Full property and accident analysis level, integrated information system is more and more urgent to the demand of unified time, in high precision, high availability,
Highly reliable, unified time unification management system is integrated information system safe operation, improves the important of operation and management level
Ensure, be one of the important component part of existing integrated information system and crucial subsystem.For ensureing integrated information system
Safety, economical operation, various automatizatioies based on computer technology and communication technology, intelligent device extensively apply, this
The normal work of a little devices all be unable to do without high accuracy, the timing system of high accuracy.At present, China's integrated information system
Middle time synchronized uses the system (device) of different manufacturers mostly, and each system time synchronization technology applicable cases is chaotic, technology water
Flat uneven, technical scheme is lack of standardization, each system uses independent clock, and timing device uses simple satellite time transfer dress
Putting, interface is single, time service precision is low, there is bigger deviation, the dispersion of each timing device, independence, is unfavorable for using, safeguarding and manage
Reasons etc., the most do not adapt to the needs of the production maintenance management of integrated information system and do not adapt to following integrated information system
The growth requirement of operational management.Tradition central system one-way timing principle is as it is shown in figure 1, in figure, SDH/IP represents digital synchronous
Net or IP data network.
(3), summary of the invention:
The technical problem to be solved in the present invention is: not enough for prior art, it is provided that a kind of centralized serial nature data
The precise time Explore of Unified Management Ideas of stream, the method can reliably realize precise time and synchronize, and simple to operate.
Technical scheme:
A kind of precise time Explore of Unified Management Ideas of centralized serial feature data stream, particularly as follows: in centralized information system
In system, utilize serial data channel to transmit serial feature data stream, make serial feature data stream reciprocal in serial data channel
Alternating transmission, the characteristic element that labelling is necessary in transmitting procedure, then, monitor two steps by time synchronized and comparison
After Zhou, it is achieved precise time centralized and unified management.
Containing clock, upper network, M undernet and M*N equipment in integrated information system, N and M is and is more than
Natural number equal to 1, is provided with the first serial data channel between clock and upper network, upper network and M undernet it
Between be respectively equipped with M the second serial data channel, be respectively equipped with N number of 3rd serial number between each undernet and N number of equipment
According to passage；Upper network and undernet are digital synchronous network, or are IP data network, or are serial message net, or are Ethernet.
The characteristic element of serial nature data contains: serial nature Data Identification, equipment/clock characteristic data, set
Standby flag data sends time, device flag data receipt time, clock mark data transmission time, clock mark data receiver
Time, clock mark data secondary send time, clock mark data secondary reception time；
The reciprocal alternating transmission step of serial feature data stream is as follows:
Step 1: serial nature data to be sent are filled serial nature Data Identification ID, equipment/clock characteristic by equipment
Data SD, and recording equipment flag data transmission time TS, then initiate this serial nature data by serial line interface；
Step 2: clock responds and receive this serial nature data, recording equipment flag data receives time TR, and renewal sets
Standby/clock characteristic data SD are to equipment/clock characteristic data SD ', recording clock flag data sends time TS ', then should
Serial nature data return to equipment；
Step 3: after equipment receives these serial nature data, recording clock flag data receives time TR ', recovers to set
Standby/clock characteristic data SD ' to equipment/clock characteristic data SD, recording clock flag data secondary sends time TS ", then
These serial nature data are returned to clock；
Step 4: after clock receives these serial nature data, recording clock flag data secondary reception time TR ", this
Time, clock have received complete serial nature data, the reciprocal alternating transmission stream of a complete serial feature data stream
Journey completes；
The work process of time synchronized is: after the secondary data roundtrip operation process from equipment to clock, obtain equipment mark
Count according to sending time TS, device flag data receipt time TR, clock mark data transmission time TS ' and clock mark data
Reception time TR ', then calculates transmission delay D and local clock compensates T, and computing formula is as follows:
D = ((TR’ - TS) - (TR - TS’))/2；
T =(( TR - TS) +( TS’ - TR’)) /2；
Compensate T according to transmission delay D and local clock and realize the correction of time tranfer time delay and the compensation of equipment clock, complete
The precise synchronization of forming apparatus time；
The work process of comparison monitoring is: after the secondary data roundtrip operation process from clock to equipment, obtain clock mark
Count according to sending time TS ', clock mark data receipt time TR ', clock mark data secondary transmission time TS " and clock
Flag data secondary reception time TR ", calculate time deviation S of current device and clock, computing formula is as follows:
S=(( TS’ - TR’) +( TS”– TR”)) /2
Time deviation S according to current device Yu clock carries out the real-time comparison monitoring of equipment time.
After monitoring two steps by time synchronized and comparison, also by revising checking procedure, it is achieved precise time collection
Middle unified management；
The work process revising verification is: during the data roundtrip operation from clock to equipment, if desired for carrying out equipment
Time configuration, in the feature message of serial nature data increase time complexity curve parameter, then by time complexity curve parameter transmit
Carry out time complexity curve to equipment, issue clock after the complete its temporal of equipment correction and be modified the verification of result.
Beneficial effects of the present invention:
1. the present invention utilizes serial data channel to transmit serial feature data stream, and in transmitting procedure, labelling must
The characteristic element wanted, then, after being monitored by time synchronized, comparison and revised verification, it is achieved time accurate
Between centralized and unified management, can not only reliably realize precise time and synchronize, and simple to operate.Present invention can apply to E1,
The time synchronized of the serial data transmissions such as digital synchronous network, IP data network, serial message net, Ethernet, monitor, control, no
Need to increase new hardware interface, simple, practical, low cost, overcome current integrated information system time service one-way transmission and connect
Receive, it is impossible to the shortcoming revising correction.
2. the equipment of the present invention can revise propagation delay time automatically, it is achieved that exact time synchronization；Clock can set in comparison in real time
The standby time, it is achieved that the real-time time monitoring of equipment during school；Utilize transmission and the verification of configuration parameter, it is achieved that the equipment time
Correction and Control, it is achieved the passive time complexity curve of equipment, and can verifying, confirm the correct response of corrected parameter.
(4), Figure of description:
Fig. 1 is tradition central system one-way timing principle schematic；
Fig. 2 is the precise time Explore of Unified Management Ideas principle schematic of centralized serial feature data stream；
Fig. 3 is the characteristic element schematic diagram of serial nature data；
Fig. 4 is the reciprocal alternating transmission schematic diagram of serial feature data stream；
Fig. 5 is the principle schematic of time synchronized；
Fig. 6 is the principle schematic of comparison monitoring；
Fig. 7 is the principle schematic revising verification.
(5), detailed description of the invention:
Seeing Fig. 2～Fig. 7, the precise time Explore of Unified Management Ideas of centralized serial feature data stream is: at centralized letter
In breath system, utilize serial data channel to transmit serial feature data stream, make serial feature data stream in serial data channel
Reciprocal alternating transmission, the characteristic element that labelling is necessary in transmitting procedure, then, monitor two by time synchronized and comparison
After individual step, it is achieved precise time centralized and unified management.
Containing clock, upper network, M undernet and M*N equipment in integrated information system, N and M is and is more than
Natural number equal to 1, is provided with the first serial data channel between clock and upper network, upper network and M undernet it
Between be respectively equipped with M the second serial data channel, be respectively equipped with N number of 3rd serial number between each undernet and N number of equipment
According to passage；Upper network and undernet are digital synchronous network or IP data network；
The characteristic element of serial nature data contains: serial nature Data Identification ID, equipment/clock characteristic data
SD, device flag data send time TS, device flag data receipt time TR, clock mark data send time TS ', time
Clock flag data receive time TR ', clock mark data secondary send time TS ", the clock mark data secondary reception time
TR”；
The reciprocal alternating transmission step of serial feature data stream is as follows:
Step 1: serial nature data to be sent are filled serial nature Data Identification ID, equipment/clock characteristic by equipment
Data SD, and recording equipment flag data transmission time TS, then initiate this serial nature data by serial line interface；
Step 2: clock responds and receive this serial nature data, recording equipment flag data receives time TR, and renewal sets
Standby/clock characteristic data SD are to equipment/clock characteristic data SD ', recording clock flag data sends time TS ', then should
Serial nature data return to equipment；
Step 3: after equipment receives these serial nature data, recording clock flag data receives time TR ', recovers to set
Standby/clock characteristic data SD ' to equipment/clock characteristic data SD, recording clock flag data secondary sends time TS ", then
These serial nature data are returned to clock；
Step 4: after clock receives these serial nature data, recording clock flag data secondary reception time TR ", this
Time, clock have received complete serial nature data, the reciprocal alternating transmission stream of a complete serial feature data stream
Journey completes；
The work process of time synchronized is: after the secondary data roundtrip operation process from equipment to clock, obtain equipment mark
Count according to sending time TS, device flag data receipt time TR, clock mark data transmission time TS ' and clock mark data
Reception time TR ', then calculates transmission delay D and local clock compensates T, and computing formula is as follows:
D = ((TR’ - TS) - (TR - TS’))/2；
T =(( TR - TS) +( TS’ - TR’)) /2；
Compensate T according to transmission delay D and local clock and realize the correction of time tranfer time delay and the compensation of equipment clock, complete
The precise synchronization of forming apparatus time；
The work process of comparison monitoring is: after the secondary data roundtrip operation process from clock to equipment, obtain clock mark
Count according to sending time TS ', clock mark data receipt time TR ', clock mark data secondary transmission time TS " and clock
Flag data secondary reception time TR ", calculate time deviation S of current device and clock, computing formula is as follows:
S=(( TS’ - TR’) +( TS”– TR”)) /2
Time deviation S according to current device Yu clock carries out the real-time comparison monitoring of equipment time.
After monitoring two steps by time synchronized and comparison, also by revising checking procedure, it is achieved precise time collection
Middle unified management；
The work process revising verification is: during the data roundtrip operation from clock to equipment, if desired for carrying out equipment
Time configuration, in the feature message of serial nature data increase time complexity curve parameter, then by time complexity curve parameter transmit
Carry out time complexity curve to equipment, issue clock after the complete its temporal of equipment correction and be modified the verification of result.
Claims (3)
1. a precise time Explore of Unified Management Ideas for centralized serial feature data stream, is characterized in that: in centralized information system
In system, utilize serial data channel to transmit serial feature data stream, make serial feature data stream reciprocal in serial data channel
Alternating transmission, the characteristic element that labelling is necessary in transmitting procedure, then, monitor two steps by time synchronized and comparison
After Zhou, it is achieved precise time centralized and unified management；
Containing clock, upper network, M undernet and M*N equipment in described integrated information system, N and M is and is more than
Natural number equal to 1, is provided with the first serial data channel between clock and upper network, upper network and M undernet it
Between be respectively equipped with M the second serial data channel, be respectively equipped with N number of 3rd serial number between each undernet and N number of equipment
According to passage；
The characteristic element of serial nature data contains: serial nature Data Identification, equipment/clock characteristic data, equipment mark
When counting according to the time of transmission, device flag data receipt time, clock mark data transmission time, clock mark data receiver
Between, clock mark data secondary send time, clock mark data secondary reception time；
The reciprocal alternating transmission step of serial feature data stream is as follows:
Step 1: serial nature data to be sent are filled serial nature Data Identification ID, equipment/clock characteristic data by equipment
SD, and recording equipment flag data transmission time TS, then initiate this serial nature data by serial line interface；
Step 2: clock responds and receive this serial nature data, recording equipment flag data receives time TR, more new equipment/time
Clock performance data SD is to equipment/clock characteristic data SD ', recording clock flag data sends time TS ', then that this serial is special
Levy data and return to equipment；
Step 3: after equipment receives these serial nature data, recording clock flag data reception time TR ', restorer/time
Clock performance data SD ' to equipment/clock characteristic data SD, recording clock flag data secondary sends time TS ", then by this string
Row characteristic returns to clock；
Step 4: after clock receives these serial nature data, recording clock flag data secondary reception time TR ", at this moment, time
Clock have received complete serial nature data, and the reciprocal alternating transmission flow process of a complete serial feature data stream is complete
Become；
The work process of time synchronized is: after the secondary data roundtrip operation process from equipment to clock, obtain device flag number
According to sending time TS, device flag data receipt time TR, clock mark data transmission time TS ' and clock mark data receiver
Time TR ', then calculates transmission delay D and local clock compensates T, and computing formula is as follows:
D=((TR '-TS)-(TR-TS '))/2；
T=((TR-TS)+(and TS '-TR '))/2；
Compensate T according to transmission delay D and local clock and realize the correction of time tranfer time delay and the compensation of equipment clock, complete to set
The precise synchronization of standby time；
The work process of comparison monitoring is: after the secondary data roundtrip operation process from clock to equipment, obtain clock mark number
According to sending time TS ', clock mark data receipt time TR ', clock mark data secondary transmission time TS " and clock mark number
According to secondary reception time TR ", calculate time deviation S of current device and clock, computing formula is as follows:
S=((TS '-TR ')+(TS " TR "))/2
Time deviation S according to current device Yu clock carries out the real-time comparison monitoring of equipment time.
The precise time Explore of Unified Management Ideas of centralized serial feature data stream the most according to claim 1, is characterized in that:
After monitoring two steps by time synchronized and comparison, also by revising checking procedure, it is achieved the centralized and unified pipe of precise time
Reason；
The work process revising verification is: during the data roundtrip operation from clock to equipment, the spy of serial nature data
Levying increase time complexity curve parameter in message, the equipment that then time complexity curve parameter passed to carries out time complexity curve, and equipment correction is complete
Issue clock after its temporal and be modified the verification of result.
The precise time Explore of Unified Management Ideas of centralized serial feature data stream the most according to claim 1, is characterized in that:
Described upper network and undernet are digital synchronous network, or are IP data network, or are serial message net, or are Ethernet.
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| CN106814603A (en) * | 2016-12-23 | 2017-06-09 | 北京航天测控技术有限公司 | A kind of dual redundant fault-tolerant system based on non-real time operating system |
| CN108877191A (en) * | 2018-06-10 | 2018-11-23 | 福州准点信息科技有限公司 | A kind of residential area Water-flowmeter auto-recording |
| CN109005021B (en) * | 2018-08-22 | 2022-02-18 | 郑州云海信息技术有限公司 | Host time management method and related device in virtualization environment |
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| CN101242317A (en) * | 2008-02-28 | 2008-08-13 | 江苏电力调度通信中心 | Time device precision and stability monitoring method |
| CN101296048A (en) * | 2008-06-17 | 2008-10-29 | 杭州华三通信技术有限公司 | Time synchronization method and apparatus |
| CN101425891A (en) * | 2008-12-09 | 2009-05-06 | 中兴通讯股份有限公司 | Time synchronization method, system and customer terminal |
| CN101631015A (en) * | 2008-07-18 | 2010-01-20 | 郑州威科姆科技股份有限公司 | Method for calibrating time tag of network time service |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242317A (en) * | 2008-02-28 | 2008-08-13 | 江苏电力调度通信中心 | Time device precision and stability monitoring method |
| CN101296048A (en) * | 2008-06-17 | 2008-10-29 | 杭州华三通信技术有限公司 | Time synchronization method and apparatus |
| CN101631015A (en) * | 2008-07-18 | 2010-01-20 | 郑州威科姆科技股份有限公司 | Method for calibrating time tag of network time service |
| CN101425891A (en) * | 2008-12-09 | 2009-05-06 | 中兴通讯股份有限公司 | Time synchronization method, system and customer terminal |
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Effective date of registration: 20170707 Address after: 501, building 4, building 450000, block 55, Lianhua street, Zhengzhou hi tech Industrial Development Zone, Henan, Patentee after: Zhengzhou Weikemu China Beidou Navigation Technology Co. Ltd. Address before: 450001 Zhengzhou high tech Industrial Development Zone, Henan Lotus Street, No. 5 Patentee before: Zhengzhou Vcom Technology Co., Ltd. |
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