CN107561953A - A kind of control method and control system - Google Patents
A kind of control method and control system Download PDFInfo
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- CN107561953A CN107561953A CN201710779802.0A CN201710779802A CN107561953A CN 107561953 A CN107561953 A CN 107561953A CN 201710779802 A CN201710779802 A CN 201710779802A CN 107561953 A CN107561953 A CN 107561953A
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Abstract
The invention provides a kind of control method and control system, the control method includes：First time time information renovation signal and initial precise time information are received in the period 1；When receiving the initial precise time information, the time to be updated of second round is generated；When receiving n-th time information renovation signal in the n-th cycle, internal time is updated to the time to be updated generated in the n-th 1 cycles；When receiving n-th precise time information, the time to be updated in the (n+1)th cycle is generated；Wherein, n is the positive integer more than 1.The control method and control system realize high-precision time synchronized control between each instrument and equipment.
Description
Technical field
The present invention relates to Aero-Space time synchronized control technology field, more specifically, more particularly to a kind of controlling party
Method and control system.
Background technology
Time synchronized control skill can be applied in aerospace field, between co-operating multiple instrument and equipments
Art, for example, multiple cameras synchronize shooting or multiple movable device Synchronous motion controls etc. to some target.
The time synchronization control method that aerospace field uses at present is sent temporal information by common data-bus
To co-operating each instrument and equipment, make to synchronize work between its each instrument and equipment.
But being transmitted due to temporal information on common data-bus has certain delay, cause each instrument and equipment not
Energy synchronized update temporal information, and the operation that each instrument and equipment is calculated internal time information and updated has not
With the delay of degree.These problems cause existing time synchronization control method can not meet that some instrument and equipments are same for the time
Walk the requirement of control accuracy.
A kind of high-precision time synchronization control method so how is provided, being that those skilled in the art are urgently to be resolved hurrily asks
Topic.
The content of the invention
To solve the above problems, the invention provides a kind of control method and control system, realize each instrument and set
High-precision time synchronized control between standby.
To achieve the above object, the present invention provides following technical scheme：
A kind of control method, the control method include：
First time time information renovation signal and initial precise time information are received in the period 1；
When receiving the initial precise time information, the time to be updated of second round is generated；
When receiving n-th time information renovation signal in the n-th cycle, internal time was updated in the (n-1)th cycle and generated
Time to be updated；
When receiving n-th precise time information, the time to be updated in the (n+1)th cycle is generated；
Wherein, n is the positive integer more than 1.
Preferably, in above-mentioned control method, it is described the period 1 receive first time time information renovation signal and
Initial precise time information includes：
When the first time time information renovation signal is received in the period 1, internal time is without renewal.
Preferably, it is described when receiving the initial precise time information in above-mentioned control method, generate second week
The time to be updated of phase includes：
According to the initial precise time information and the cycle time of setting, the time to be updated of second round is generated.
Preferably, it is described when receiving n-th precise time information in above-mentioned control method, generated for the (n+1)th cycle
Time to be updated include：
According to the n-th precise time information and the cycle time of setting, the (n+1)th cycle of generation it is to be updated when
Between.
Present invention also offers a kind of control system, the control system includes：Time source device and at least two instrument
Device equipment；
Wherein, the time source device is to set cycle transmission time information more new signal to the instrument and equipment, and institute
State time source device and corresponding precise time information is sent within each cycle to the instrument and equipment；
The instrument and equipment receives first time time information renovation signal and initial precise time information in the period 1；
When receiving the initial precise time information, the time to be updated of second round is generated；When receiving n-th in the n-th cycle
Between information updating signal when, internal time is updated to the time to be updated generated in the (n-1)th cycle；It is smart when receiving n-th
During true temporal information, the time to be updated in the (n+1)th cycle is generated；Wherein, n is the positive integer more than 1.
Preferably, in above-mentioned control system, the time source device is sent by RS-422 serial communication signals bus
The time information renovation signal is to the instrument and equipment.
Preferably, in above-mentioned control system, the time source device is sent by RS-422 serial communications data/address bus
The precise time information is to the instrument and equipment.
By foregoing description, a kind of control method provided by the invention is by set the cycle to instrument and equipment inside
Time is calibrated, and has generated the temporal information that next cycle needs update in advance within a upper cycle, only need to be next
When cycle receives time information renovation signal, instrument and equipment internal time is updated at once, directly by internal time more
Promptness, reality when generation temporal information in a new supreme cycle, high degree improve instrument and equipment internal time accurate school
When property and full-time property.
That is, ensure the internal time synchronization in initial each instrument and equipment of each week, even in each cycle model
In enclosing, processing of each instrument and equipment to the time can produce error, but by setting cycle duration, can be down to the error
It is minimum；So by the time synchronized of initial each instrument and equipment of each week, it ensure that each instrument and equipment whole worked
Realize and be synchronized with the movement in the range of error permission in journey.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of control method provided in an embodiment of the present invention；
Fig. 2 is a kind of principle schematic of control system provided in an embodiment of the present invention；
Fig. 3 is a kind of timing diagram of time source device transmission time information more new signal provided in an embodiment of the present invention；
Fig. 4 is the timing diagram that a kind of time source device provided in an embodiment of the present invention sends precise time information；
Fig. 5 be a kind of time information renovation signal provided in an embodiment of the present invention and precise time information be combined when
Sequence schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
With reference to figure 1, Fig. 1 is a kind of schematic flow sheet of control method provided in an embodiment of the present invention.
The control method includes：
S101：First time time information renovation signal and initial precise time information are received in the period 1.
Specifically, instrument and equipment is started working, when receiving first time time information renovation signal, when inside instrument and equipment
Between without renewal；After first time time information renovation signal is received, between next cycle, initial precise time is received
Information.
S102：When receiving the initial precise time information, the time to be updated of second round is generated.
Specifically, when instrument and equipment receives the corresponding initial precise time information of first time time information renovation signal
When, instrument and equipment generates the time to be updated of next cycle.
S103：When receiving n-th time information renovation signal in the n-th cycle, internal time was updated in the (n-1)th cycle
The time to be updated of generation.
Specifically, instrument and equipment is when receiving n-th time information renovation signal in n-th week beginning, by instrument and equipment
The time in portion is updated to the time to be updated of cycle generation, ensures the internal time in initial each instrument and equipment of each week
It is synchronous.
S104：When receiving n-th precise time information, the time to be updated in the (n+1)th cycle is generated.
Specifically, when instrument and equipment receives the corresponding n-th precise time information of n-th time information renovation signal
When, instrument and equipment generates the time to be updated in the (n+1)th cycle.
It should be noted that n is the positive integer more than 1.
Also, it is required to calculate the variable quantity of time in each periodic regime, inside instrument and equipment in real time, but every time
When receiving time information renovation signal, the time variation amount inside instrument and equipment is initialized as 0.
In embodiments of the present invention, by the way that instrument and equipment internal time is calibrated with setting the cycle, and at upper one week
The temporal information that next cycle needs update has been generated in phase in advance, time information renovation letter need to be only received in next cycle
Number when, instrument and equipment internal time is updated at once, directly by internal time be updated in a upper cycle generate the time letter
Breath, high degree improve promptness, real-time and the full-time property during the accurate school of instrument and equipment internal time.
That is, ensure the internal time synchronization in initial each instrument and equipment of each week, even in each cycle model
In enclosing, processing of each instrument and equipment to the time can produce error, but by setting cycle duration, can be down to the error
It is minimum；So by the time synchronized of initial each instrument and equipment of each week, it ensure that each instrument and equipment whole worked
Realize and be synchronized with the movement in the range of error permission in journey.
It is in an alternative embodiment of the invention, described when receiving described initial accurate based on the above embodiment of the present invention
Between information when, generating the time to be updated of second round includes：
According to the initial precise time information and the cycle time of setting, the time to be updated of second round is generated.
Specifically, the time to be updated of second round be initial precise time information with setting it is cycle time and.By
It is identical in the precise time information that each instrument and equipment each cycle receives, and the cycle time set is constant, ensures next
After the completion of all initial each instrument and equipment internal time renewals, time synchronized is realized.
It is in an alternative embodiment of the invention, described to receive n-th precise time letter based on the above embodiment of the present invention
During breath, the time to be updated in the (n+1)th cycle of generation includes：
According to the n-th precise time information and the cycle time of setting, the (n+1)th cycle of generation it is to be updated when
Between.
Specifically, the time to be updated in the (n+1)th cycle be n-th precise time information with setting it is cycle time and.
That is, having generated the temporal information that next cycle needs update in advance within a upper cycle, need to only be connect in next cycle
During time of receipt (T of R) information updating signal, instrument and equipment internal time is updated at once, is directly updated to internal time
Promptness, real-time when generation temporal information in one cycle, high degree improve instrument and equipment internal time accurate school with
And full-time property.
In each periodic regime, the internal time of each instrument and equipment also occurs that change, but passes through setting
Cycle duration, the error can be minimized；So by the time synchronized of initial each instrument and equipment of each week, ensure that
Each instrument and equipment is realized in the range of error permission in whole work process and is synchronized with the movement.
Based on the above-mentioned whole embodiments of the present invention, present invention also offers a kind of control system, and with reference to figure 2, Fig. 2 is this hair
A kind of principle schematic for control system that bright embodiment provides.
The control system includes：The instrument and equipment of time source device 21 and at least two；
Wherein, the time source device 21 to be to set cycle transmission time information more new signal to the instrument and equipment, and
The time source device 21 sends corresponding precise time information to the instrument and equipment within each cycle；
The instrument and equipment receives first time time information renovation signal and initial precise time information in the period 1；
When receiving the initial precise time information, the time to be updated of second round is generated；When receiving n-th in the n-th cycle
Between information updating signal when, internal time is updated to the time to be updated generated in the (n-1)th cycle；It is smart when receiving n-th
During true temporal information, the time to be updated in the (n+1)th cycle is generated；Wherein, n is the positive integer more than 1.
Specifically, the time source device 21 is used for generation time information updating signal and precise time information, with setting
Cycle transmission time information more new signal sends corresponding precise time information to the instrument and equipment within each cycle
To the instrument and equipment.
It should be noted that, embody three instrument and equipments i.e. instrument and equipment A22, instrument in Fig. 2 only by way of example
Device equipment B23 and instrument and equipment C24, but in embodiments of the present invention, to the quantity of instrument and equipment without limiting.
Based on the above-mentioned control system of the present invention, the time source device 21 is sent by RS-422 serial communication signals bus
The time information renovation signal is to the instrument and equipment.
With reference to figure 3, Fig. 3 be a kind of time source device transmission time information more new signal provided in an embodiment of the present invention when
Sequence figure.
From the figure 3, it may be seen that the time source device 21 sends the time by 1 road RS-422 serial bus to each instrument and equipment
Information updating signal.Wherein, time information renovation signal width is preferably 1ms ± 0.2ms, effective in low level, preferably with
The μ s of 0.5s ± 2 cycle time sends the time information renovation signal to the instrument and equipment.
Based on the above-mentioned control system of the present invention, the time source device 21 is sent by RS-422 serial communications data/address bus
The precise time information is to the instrument and equipment.
With reference to figure 4, Fig. 4 is the sequential that a kind of time source device provided in an embodiment of the present invention sends precise time information
Figure.
As shown in Figure 4, the time source device 21 by three-wire system temporal information synchronous serial communication data/address bus to each
Individual instrument and equipment sends precise time information.Wherein, three-wire system temporal information synchronous serial communication data/address bus includes：
Gating signal：The gating signal normality is high level, effective in low level；
Code synchronizing signal：The code synchronizing signal high level and low level ratio within a pulse period are 1:1, on
Rise along among aligned data, instrument and equipment completes data acquisition operations in rising edge, and the code synchronizing signal speed is 4kbps；
Data-signal：The data-signal is per a byte high position preceding, and high byte is preceding.
Also, with reference to figure 5, Fig. 5 is a kind of time information renovation signal provided in an embodiment of the present invention and precise time
The time diagram that information is combined.
As shown in Figure 5, each cycle time information more new signal corresponds with precise time information, precise time information
Sent within each cycle by the time source device to each instrument and equipment, but each instrument and equipment receives temporal information
During more new signal, corresponding precise time information is received in setting time domestic demand, ensures to generate within each cycle
The next cycle needs the time updated.
For the 0.5s cycles, after instrument and equipment receives time information renovation signal, believe from time information renovation
Number significant instant starts, it is necessary to receive corresponding precise time information in the range of 0.25s.
By foregoing description, a kind of control method provided by the invention is by set the cycle to instrument and equipment inside
Time is calibrated, and has generated the temporal information that next cycle needs update in advance within a upper cycle, only need to be next
When cycle receives time information renovation signal, instrument and equipment internal time is updated at once, directly by internal time more
Promptness, reality when generation temporal information in a new supreme cycle, high degree improve instrument and equipment internal time accurate school
When property and full-time property.
That is, ensure the internal time synchronization in initial each instrument and equipment of each week, even in each cycle model
In enclosing, processing of each instrument and equipment to the time can produce error, but by setting cycle duration, can be down to the error
It is minimum；So by the time synchronized of initial each instrument and equipment of each week, it ensure that each instrument and equipment whole worked
Realize and be synchronized with the movement in the range of error permission in journey.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of control method, it is characterised in that the control method includes：
First time time information renovation signal and initial precise time information are received in the period 1；
When receiving the initial precise time information, the time to be updated of second round is generated；
When receiving n-th time information renovation signal in the n-th cycle, internal time is updated to treating of being generated in the (n-1)th cycle
Renewal time；
When receiving n-th precise time information, the time to be updated in the (n+1)th cycle is generated；
Wherein, n is the positive integer more than 1.
2. control method according to claim 1, it is characterised in that described to receive first time temporal information in the period 1
More new signal and initial precise time information include：
When the first time time information renovation signal is received in the period 1, internal time is without renewal.
3. control method according to claim 1, it is characterised in that described to receive the initial precise time information
When, generating the time to be updated of second round includes：
According to the initial precise time information and the cycle time of setting, the time to be updated of second round is generated.
4. control method according to claim 1, it is characterised in that it is described when receiving n-th precise time information,
Generating the time to be updated in the (n+1)th cycle includes：
According to the n-th precise time information and the cycle time of setting, the time to be updated in the (n+1)th cycle of generation.
5. a kind of control system, it is characterised in that the control system includes：Time source device and at least two instruments are set
It is standby；
Wherein, the time source device to be to set cycle transmission time information more new signal to the instrument and equipment, and it is described when
Between source device corresponding precise time information is sent within each cycle to the instrument and equipment；
The instrument and equipment receives first time time information renovation signal and initial precise time information in the period 1；When connecing
When receiving the initial precise time information, the time to be updated of second round is generated；N-th time letter is received in the n-th cycle
When ceasing more new signal, internal time is updated to the time to be updated generated in the (n-1)th cycle；When receive n-th it is accurate when
Between information when, generate the (n+1)th cycle time to be updated；Wherein, n is the positive integer more than 1.
6. control system according to claim 5, it is characterised in that the time source device passes through RS-422 serial communications
Signal bus sends the time information renovation signal to the instrument and equipment.
7. control system according to claim 5, it is characterised in that the time source device passes through RS-422 serial communications
Data/address bus sends the precise time information to the instrument and equipment.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951399A (en) * | 2010-09-08 | 2011-01-19 | 中兴通讯股份有限公司 | Method and device for synchronizing data increment of internet protocol TV |
| CN102098194A (en) * | 2009-12-10 | 2011-06-15 | 中兴通讯股份有限公司 | Method and system for realizing time synchronization in local area network |
| CN103532652A (en) * | 2013-10-18 | 2014-01-22 | 杭州华三通信技术有限公司 | Time synchronizing device and method |
| CN104488336A (en) * | 2012-06-19 | 2015-04-01 | 三星电子株式会社 | Terminal synchronization method and apparatus for use in wireless communication network |
| CN105450323A (en) * | 2015-11-11 | 2016-03-30 | 杭州和利时自动化有限公司 | SOE time synchronization control method and system |
| CN105763641A (en) * | 2016-04-19 | 2016-07-13 | 华南理工大学 | Quick clock synchronization method for EtherCAT master station control system |
-
2017
- 2017-09-01 CN CN201710779802.0A patent/CN107561953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098194A (en) * | 2009-12-10 | 2011-06-15 | 中兴通讯股份有限公司 | Method and system for realizing time synchronization in local area network |
| CN101951399A (en) * | 2010-09-08 | 2011-01-19 | 中兴通讯股份有限公司 | Method and device for synchronizing data increment of internet protocol TV |
| CN104488336A (en) * | 2012-06-19 | 2015-04-01 | 三星电子株式会社 | Terminal synchronization method and apparatus for use in wireless communication network |
| CN103532652A (en) * | 2013-10-18 | 2014-01-22 | 杭州华三通信技术有限公司 | Time synchronizing device and method |
| CN105450323A (en) * | 2015-11-11 | 2016-03-30 | 杭州和利时自动化有限公司 | SOE time synchronization control method and system |
| CN105763641A (en) * | 2016-04-19 | 2016-07-13 | 华南理工大学 | Quick clock synchronization method for EtherCAT master station control system |
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