CN100502314C - Absolute time data acquiring method and system - Google Patents
Absolute time data acquiring method and system Download PDFInfo
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- CN100502314C CN100502314C CNB2006100745950A CN200610074595A CN100502314C CN 100502314 C CN100502314 C CN 100502314C CN B2006100745950 A CNB2006100745950 A CN B2006100745950A CN 200610074595 A CN200610074595 A CN 200610074595A CN 100502314 C CN100502314 C CN 100502314C
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Abstract
The provided method for acquiring absolute time data comprises: obtaining the relative time of the first/second time to calculate the difference between two relative values; obtaining the absolute time of third time, and calculating the absolute value of the first time according to the third time and former difference. The relative device comprises a single-plate unit and a master control unit. This invention can calculate the precise absolute time of special signal (such as alarm message).
Description
Technical field
The present invention relates to a kind of time data acquisition technique, particularly a kind of absolute time collecting method and system.
Background technology
In network system, often to gather the generation time of a certain incident, information in each equipment, module, the unit.Be that example is described below with the warning system.These are described and also are applicable to the various message events that comprise the time.
The collection of alarm time is the main means of Telecommunication Network Element equipment being carried out fault management.Guaranteeing the accuracy of alarm time, is very important for fault location.Usually the time that not only requires to be gathered is accurate to second level or 0.1 second level, and must acquisition alarm absolute time accurately.
The distributed system that network element device normally is made of the polylith veneer.The gatherer process of alarm time is independently carried out by each veneer, at last the parameter that collects is pooled on the master control borad, and reports network management center (OMC).
In order to obtain accurate alarm time, to be responsible for handling the veneer of alarming and need to obtain to alarm accurate absolute time when taking place, described absolute time is meant the time of representing with date Hour Minute Second form.Absolute time is usually from the absolute time timing module, and common this timing module attaches a compact battery, thereby can keep the timing in the long duration under the situation of network element power down.But for reliability and cost consideration, in a network element, have only usually just to be equipped with absolute timing module on the master control borad, and other veneers pass through the fixed time broadcast mechanism of master control borad the Absolute Time Synchronization between maintenance and the master control borad.By mechanism such as SNTP, the time source of master control borad and the whole network keeps synchronously.
In the prior art scheme, alarm time is filled in after receiving the reporting of alarm source veneer by master control borad again.Owing on master control borad, always can obtain absolute time accurately, so this scheme can guarantee that exceptional value does not appear in alarm time.
The implementation procedure of prior art scheme is as shown in Figure 1: in step 101, the alarm source veneer sends a warning information to master control borad, and the response of wait master control borad loopback, this mainly is to prevent that warning information from losing (for example: information that the link transmission error code causes sends mistake, or be received chip by warning information abandon) in transport process; In step 102, judge that master control borad is to alarm source veneer back response information.If master control borad is received this warning information, then to alarm source veneer back response information, and with time of receiving this warning information as alarm time.Because master control borad has the absolute time timing module, so the described time that receives this information is absolute time, obtain the absolute clocking value that warning information produces thus, veneer also can send next bar warning information in step 104; If the alarm source veneer is not received response message in the given time, then in step 103, to master control borad repeating transmission warning information just now, till receiving response message.
From above-mentioned description to the prior art scheme as can be seen: send warning information first from the alarm source veneer, receive this warning information to master control borad, may resend the transfer delay that causes thereby introduce because the information transmission is lost and warning information is retransmitted in the middle of this process.This transfer delay is unpredictable, and this part additional transfer delay can cause the time deviation of alarm time, therefore can't obtain alarm and produce constantly absolute time accurately.
In addition and since only after veneer enters stable state (after the initialization procedure) could begin to send alarm signal, this alarm that causes being collected before the veneer stable state all can only be identified as the identical time by master control borad, thereby causes the inaccurate of alarm time.
Therefore, the actual alarm time of alarm time that the technical scheme of use prior art can cause master control borad to be filled in has significant deviation, causes the inaccurate of alarm time.
Summary of the invention
At the problem of the accurate absolute time of information that is difficult in the prior art obtain producing on the veneer, the time data acquisition method and the system of accurate alarm time obtained in the combination that the present invention proposes the relative time of a kind of absolute time of utilizing master control borad and veneer.
Absolute time collecting method provided by the invention comprises:
A) obtain first constantly the relative time;
B) obtain second constantly the relative time;
C) calculate described second constantly with first constantly the relative time difference;
D) obtain the 3rd constantly absolute time;
E) utilize described relative time difference and the 3rd absolute time constantly, calculate the absolute time in first moment.
According to above-mentioned absolute time collecting method, the step of calculating the absolute time in first moment in step e is: the absolute time with the 3rd moment deducts the described relative time difference that obtains among the step c.
According to above-mentioned absolute time collecting method, in step e, the step of calculating the absolute time in first moment is:
E11) absolute time with the 3rd moment deducts described relative time difference;
E12) result who obtains with step e11 deducts predetermined value.
Another kind of absolute time collecting method provided by the invention comprises:
1) obtains signal and produce relative time constantly, and signal generation relative time is constantly appended in the information to be sent;
2) obtain the relative time of signal delivery time, and signal delivery time relative time is appended in the information to be sent;
3) described information to be sent is sent to main control unit;
Absolute time when 4) obtaining main control unit and receive information;
5) utilize described absolute time, signal to produce relative time and signal delivery time relative time constantly, signal calculated produces absolute time constantly.
According to above-mentioned absolute time collecting method, in step 5, the step that signal calculated produces absolute time constantly further comprises:
511) signal calculated delivery time relative value and signal produce the difference of relative value constantly;
512) absolute time that receives information with master control borad deducts described difference.
According to above-mentioned absolute time collecting method, in step 5, the step that signal calculated produces absolute time constantly further comprises:
521) signal calculated delivery time relative value and signal produce first difference of relative value constantly;
522) absolute time that receives information with master control borad deducts described first difference, obtains second difference;
523) deduct Transmission Time Interval with described second difference.
Wherein, described Transmission Time Interval is the time that sends to master control borad from veneer.
Another kind of absolute time collecting method provided by the invention comprises:
A) obtain signal and produce relative time constantly;
B) the absolute time signal Synchronization is arrived plate veneer unit;
Relative time when c) obtaining the absolute time signal Synchronization to plate veneer unit;
Absolute time when d) obtaining the absolute time signal Synchronization to plate veneer unit;
Relative time when e) utilizing described absolute time value, the relative time in the signal generation moment and absolute time signal Synchronization to plate veneer unit, signal calculated produces absolute time constantly.
According to above-mentioned absolute time collecting method, step e further comprises:
Relative time subtraction signal when e31) arriving plate veneer unit with the absolute time signal Synchronization produces relative time constantly;
E32) absolute time during to plate veneer unit deducts the difference that step e31 obtains with the absolute time signal Synchronization.
Correspondingly, the present invention also provides a kind of absolute time data acquisition system, comprising:
The information that plate veneer unit, described plate veneer unit are used to obtain on the veneer produces relative time constantly, and described information with information generation time is sent to main control unit;
Main control unit is used for producing absolute value constantly according to received time relative value computing information.
Described plate veneer unit comprises relative time timing module and relative time sending module, wherein,
Described relative time timing module is used for carrying out timing behind the plate veneer unit initialization procedure, to obtain the relative time that alarm produces;
Described relative time sending module is used for sending the information with information generation relative value to main control unit.
Described main control unit comprises absolute time timing module and absolute time computing module, wherein,
Described absolute time timing module is used to produce the absolute time signal;
Described absolute time computing module is used to utilize information to produce relative time and the access time calculates the absolute time that information produces the moment.
The present invention also provides a kind of absolute time data acquisition system, comprising:
The information that plate veneer unit, described plate veneer unit are used to obtain on the veneer produces relative time constantly, and utilizes received relative time computing information to produce absolute time constantly;
Main control unit is used to produce the absolute time signal, and described absolute time signal Synchronization is arrived plate veneer unit.
Described plate veneer unit comprises relative time timing module, absolute time receiver module and absolute time computing module, wherein,
Described relative time timing module is used for carrying out timing behind the plate veneer unit initialization procedure, to obtain to alarm the relative time of generation and the relative time that the absolute clock signal Synchronization arrives plate veneer unit;
Described absolute time receiver module is used to receive the absolute clock signal that is synchronized to plate veneer unit.
Described absolute time computing module is used to utilize information generation relative time, absolute clock signal Synchronization to come computing information to produce absolute time constantly to the relative time and the absolute clock signal Synchronization of plate veneer unit to the absolute time of plate veneer unit.
Described main control unit comprises the absolute time timing module, and described absolute time timing module is used to produce the absolute clock signal.
Utilize absolute time collecting method provided by the invention and system,, just can calculate thereby information transmits the time delay of being introduced owing in the information that is sent, added the mark of information generation time and transmitting time.And the absolute time calculated signals signal specific (as warning information) that can utilize the acquisition master control borad to provide produces accurate absolute time constantly, has solved in the prior art to cause obtaining the problem of absolute time accurately because of the information transfer delay.
Description of drawings
Fig. 1 is the time data acquisition method flow chart of prior art;
Fig. 2 is the flow chart of the absolute time collecting method among the present invention;
Fig. 3 is the absolute time collecting method flow chart of the specific embodiment according to the present invention;
Fig. 4 is the structural representation of absolute time data acquisition system according to an embodiment of the invention;
Fig. 5 is an absolute time collecting method flow chart in accordance with another embodiment of the present invention;
Fig. 6 is the structural representation of absolute time data acquisition system in accordance with another embodiment of the present invention.
Embodiment
A kind of time data acquisition method provided by the invention and system, according to the information that can obtain produce relative time constantly and and absolute time between difference obtain expecting to obtain accurate information and produce absolute time constantly.
The specific embodiment of the present invention with the alarm time acquisition method as example, but those skilled in the art should understand that, practical application is not limited in this, for example this fermentation can also be applied to handle various by the veneer collection that does not have the absolute time signal and require its information, for example log information, performance counter information etc. with absolute time.
Fig. 2 is according to time data acquisition method flow chart of the present invention.At first, in step 201, obtain the relative time in first moment.Described first is meant that the information on the equipment that does not have the absolute time timer (for example veneer) takes place constantly by (for example moment of the moment of warning information generation, log information generation or the like) constantly.This step is normally finished on the equipment that does not have the absolute time timing module (for example veneer), therefore is to carry out timing by the relative time timing module on the described equipment constantly to first.Timing is from this equipment process initialization procedure and after stablizing, when prearranged signal (for example warning information) produced, timing was this time finished.
Then, in step 202, obtain the relative clocking value in second moment, described second constantly can be equipment sends delivery time from information to master control borad.The relative time in second moment also is to be obtained by the relative time timing module timing on the equipment.Replacedly, described second constantly can also be master control borad sends signal specific or the moment from information to veneer.
In step 203, calculate the difference between second moment and first moment, promptly relative time and first relative time constantly with second moment subtracts each other.
When equipment obtains the relative time in second moment, also must be able to access the absolute time in second moment.In step 204, obtain the absolute time in second moment by the absolute time of obtaining for the 3rd moment, the absolute time in the 3rd moment can obtain in the timing on the equipment with absolute time timing module (as master control borad), for example, when second moment is that veneer is when master control borad sends the delivery time of information, then the 3rd is the moment that master control borad receives described information constantly, consider that the transmitting time from the veneer to the master control borad can ignore, in the present embodiment, with the 3rd constantly the absolute time of (being the moment that master control borad receives information) as second constantly the absolute time.In addition, also can be by the absolute time signal Synchronization is finished the timing of the absolute time in the 3rd moment to veneer.
In actual applications, can exchange for the order of obtaining relative time difference, the 3rd absolute time constantly between second moment and first moment in step 203 and 204 respectively, that is to say, can after the absolute time of obtaining for the 3rd moment, calculate the relative time difference between second moment and first moment again.
In step 205, according to the absolute time and the above-mentioned difference in the 3rd moment, promptly the absolute time with the 3rd moment deducts the difference that draws in above-mentioned steps 204, just can draw the absolute time in first moment.When considering second constantly and during the 3rd time difference between constantly, the difference that then needs to draw with step 205 deducts second constantly and the 3rd difference between the value constantly again, in normal process of transmitting once, described difference according to veneer to the status transmission of master control borad relatively-stationary value normally, therefore, described difference is got an empirical value usually as the transmission intercal from the veneer to the master control borad.
Utilize the 3rd absolute time and second relation of absolute time constantly constantly, and obtained second constantly with first constantly the relative time difference, first absolute time constantly that can calculate.
The invention will be further described below in conjunction with specific embodiment:
Fig. 3 is the time data acquisition method flow chart according to the embodiment of the invention.As shown in the figure, in step 301, at first veneer obtains warning information and produces relative time values constantly.Described information produces relative value constantly and is meant in the single board starting initialization, and pick up counting after reaching stable state, when alarm produces, relative time values when noting the alarm generation, because this time is write down by the veneer that does not possess the absolute time timing module, therefore this warning information generation time value constantly is not the absolute time value, but relative time values.
After obtaining this relative value, in step 302, veneer joins this relative time values in the warning information, is about to the timestamp of current time value as this warning information, is attached on the warning information.Then this warning information is sent, and, obtain the relative clocking value of the transmitting time of this warning information in step 303.In step 304, veneer adds the relative time values of described transmitting time in warning message when sending.The same with raising Time, because this transmitting time added by veneer, so transmitting time neither the absolute time value, but measures relative time values.
In step 305, above-mentioned warning information is sent to master control borad.Warning information is transferred to master control borad can be undertaken by various suitable wireless or wire transmission agreements.In step 306, master control borad receiving alarm information.
After master control borad receives warning information,, note the absolute time of receiving alarm information at first in step 307.Owing to have the absolute time timing module on the master control borad, the absolute time in the time of therefore accessing receiving alarm information.In the present embodiment, owing to the transmission time that is sent to master control borad from veneer is very short, thereby can ignore to this transmission time in absolute time is calculated, the absolute time that therefore can describedly receive warning information is exactly the absolute time of the warning information delivery time on veneer.Also can consider to be sent to the time of master control borad in a further embodiment from veneer, for example the time that is sent to master control borad from veneer is measured by other time set, also can directly choose a predetermined value as the transmission time, described predetermined value is to determine according to the empirical value in transmission time between veneer and the master control borad.The transmission time of described main control unit and plate veneer unit is subjected to the restriction of factors such as communication line between the equipment and communication protocol.
In step 308, produce relative value constantly then, obtain time difference, promptly deduct raising Time, draw the relative time difference that when alarm produces, is carved into the alarm delivery time with the alarm transmitting time with signal delivery time relative value subtraction signal.Wherein, by corresponding protocol raising Time in the warning information and alarm transmitting time are read out.Described raising Time is meant on corresponding veneer the timing to the alarm event time of origin that is produced, this time is " relative time ", it promptly should also be the timing of timing module on the veneer time from picking up counting after the veneer initialization procedure is stablized, when the generation alert event takes place, ending, equally, the alarm transmitting time is from the relative time of the stable back of veneer initialization procedure when sending a warning message constantly to master control borad.
Afterwards, in step 309, after the difference of absolute time, raising Time and the alarm transmitting time in the moment of obtaining warning information, calculate the absolute time that alarm produces.In the present embodiment, in once transmitting normally, veneer is very short to the transmitting time of master control borad, can ignore, and therefore deducts difference with the warning information absolute time that receives and calculates described alarm generation absolute time.
In the embodiment that considers the transmission time from the veneer to the master control borad, in once transmitting normally, veneer is a regular time to the transmitting time of master control borad, chooses an empirical value usually as the transmission time from the veneer to the master control borad.Therefore after deducting difference, also to deduct the transmission time from the veneer to the master control borad again, to obtain the absolute time that alarm produces with the warning information absolute time that receives.
Fig. 4 is the structural representation of time data acquisition system according to an embodiment of the invention.In this system, comprise main control unit 410 and plate veneer unit 420.
Described main control unit 410 is realized that by master control borad described master control borad also has the calculating of the absolute time that alarm event on the outside veneer is produced except can realizing corresponding processing capacity.Wherein, main control unit also comprises: absolute time timing module 401 and absolute time computing module 402.
Wherein, described absolute time timing module 401 is used to produce the absolute time signal.The absolute time timing module can adopt various time time set of the prior art, for example, and absolute time clock or the like.This is well-known to those skilled in the art, is not described in detail at this.
Absolute time computing module 402 is used for calculating the absolute time that information produces the moment according to information generation relative time and access time.The input value of described absolute time computing module is from the information generation time relative value of outside veneer and from the time of veneer to the warning information of master control borad transmission, by corresponding algorithm the numerical value of input is handled.The absolute time computing module can be by corresponding software module or hardware control logic realization, for example the clock pulse counter unit among the CPU.
Described plate veneer unit 420 also comprises: relative time timing module 404 and relative time sending module 403.
Wherein, after relative time timing module 404 is used for finishing from the plate veneer unit initialization timing is taken place constantly to carry out in information.Relative time timing module 404 is the time sets behind the absolute time timing module frequency division that utilizes on the master control borad.Utilize a local timing module as relative time timing module 404 on the veneer, write down the veneer CPU time after restarting from resetting, this time is as the fiducial time of timing.In the specific implementation process, this this locality timing module can carry out frequency division to its master clock by master control borad CPU and obtain.The timing of this timing module is also referred to as " TICK counting " usually, and TICK is meant the chronomere behind the master control borad CPU frequency frequency division.Local timing module can be as accurate as the TICK of different accuracy, and TICK is millisecond or the time precision higher than millisecond normally.In the present embodiment, the relative time timing on veneer is unit with the millisecond, promptly the relative time counted of relative time timing module be from cpu reset restart finish after millisecond number when alarm event takes place.
Relative time sending module 403 is used to send the information with information generation relative value.This sending module is that the alarm information that will have information generation relative time information constantly sends to master control borad.Described sending module comprises protocol module, sends so that carry out data according to the corresponding communication agreement.Sending module is packed data to be sent, and adds the relative time information of delivery time in data.When warning information was retransmitted, relative time sending module 403 was updated to delivery time relative time when this time retransmitting with the relative time information of delivery time.
Owing to after in data, having added the information of delivery time, avoided having avoided warning information is produced the inaccurate calculating of absolute time before warning information sends to main control unit because the time-delay that existed can be calculated.
Fig. 5 is a time data acquisition method flow chart in accordance with another embodiment of the present invention.In the present embodiment, use veneer time synchronized mechanism to make that veneer can very fast acquisition absolute time after starting.But, only after obtaining the absolute time signal, veneer could obtain alarm event and get time of origin, and at the software initialization of veneer after the stage and before obtaining absolute time, veneer still can't be learnt the absolute time that alarm event takes place at this therebetween, and the initial time value that can only have access to electricity is as absolute time.Therefore, if alarm occurs after the stage and before obtaining absolute time, can cause alarm timing uncertainty constantly true at the software initialization of veneer.
As shown in the figure, in the present embodiment, utilization is calculated the absolute time that warning information produces from the absolute time clock signal that master control borad is synchronized on the veneer.In step 501, at first obtain warning information and produce relative time values constantly.Similarly, described information generation relative value constantly is meant from the single board starting initialization and picks up counting the time relative value of noting when alarm produces.Because produce constantly in alarm, veneer may also not obtain the absolute time that master control borad is come synchronously, therefore the time value that is write down this moment is not the absolute time value, but the relative time values from beginning to calculate after the veneer initialization procedure finishes.
After obtaining this relative value, in step 502, veneer has obtained the absolute time signal that master control borad is come synchronously, and still proceeds the timing of relative time.In step 503, when veneer receives the absolute time signal, write down the relative time values in this moment.In step 504, receive the absolute time signal constantly at veneer, also obtained its absolute time value simultaneously.Then, in step 505, calculate and receive the absolute time signal produces the moment constantly with warning information time difference.With receiving absolute time signal relative time values constantly, deduct alarm and produce relative time values constantly, obtain difference therebetween.In step 506, deduct difference with receiving absolute clock signal absolute time value constantly, obtain alarm and produce absolute time value constantly.
Fig. 6 is the structural representation of absolute time data acquisition system in accordance with another embodiment of the present invention.Can finish workflow shown in Figure 5 in this absolute time data acquisition system.As shown in the figure, described absolute time is finished on plate veneer unit, described absolute time signal be with the absolute time timing module signal Synchronization on the master control borad to veneer.Veneer can be by the fixed time broadcast mechanism of master control borad, the Absolute Time Synchronization between maintenance and the master control borad, and for example, by mechanism such as SNTPs (SNTP), the time of master control borad and veneer keeps synchronously.
In this system, comprise main control unit 610 and plate veneer unit 620.Described plate veneer unit 620 comprises: relative time timing module 602, absolute time receiver module 603 and absolute time computing module 604.Wherein, after described relative time timing module 602 is used for finishing from the plate veneer unit initialization timing is taken place constantly to carry out in information, to obtain relative time that alarm produces and absolute clock signal Synchronization relative time to plate veneer unit 620.The clock signal that the clock signal of relative time timing module 602 produces after can the absolute time clock signal frequency division by master control borad realizes.
Described absolute time receiver module 603 is used to receive the clock signal of absolute time, so that the absolute clock signal that main control unit 610 is sent receives.Absolute time receiver module 603 can be realized by the clock counter module on the veneer.
Described absolute time computing module 604 is used for producing relative time, absolute clock signal Synchronization calculate the information generation moment to the relative time and the absolute clock signal Synchronization of plate veneer unit to the absolute time of plate veneer unit absolute time according to information.In described absolute time computing module 604, calculate earlier the difference that the absolute clock signal Synchronization produces relative time to the relative time and the information of plate veneer unit, deduct the absolute time that above-mentioned difference obtains the information generation moment with the absolute clock signal Synchronization to the absolute time of plate veneer unit again.Absolute time computing module 604 is realized by software module on the veneer or hardware control logic.
Main control unit 610 comprises absolute time timing module 601.Described absolute time timing module 601 is used to produce the absolute time clock signal, and described signal is sent to plate veneer unit.Absolute time timing module 601 can adopt various time time set of the prior art, for example, and absolute time clock or the like.Described main control unit 610 sends to veneer by corresponding signal lines with the absolute clock signal.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (12)
1, a kind of absolute time collecting method is characterized in that, comprising:
1) obtains signal generation relative time constantly on the veneer, and signal generation relative time is constantly appended in the information to be sent;
2) obtain the relative time of signal delivery time on the veneer, and signal delivery time relative time is appended in the information to be sent;
3) described information to be sent is sent to main control unit;
Absolute time when 4) obtaining main control unit and receive information;
5) utilize described absolute time, signal to produce the relative time constantly and the relative time of signal delivery time, signal calculated produces absolute time constantly.
2, absolute time collecting method according to claim 1 is characterized in that, in step 5), the step that signal calculated produces absolute time constantly further comprises:
511) relative time values of signal calculated delivery time and signal produce the difference of relative time values constantly;
Absolute time value when 512) receiving information with main control unit deducts described difference.
3, absolute time collecting method according to claim 1 is characterized in that, in step 5), the step that signal calculated produces absolute time constantly further comprises:
521) relative time values of signal calculated delivery time and signal produce first difference of relative time values constantly;
522) the absolute time value that receives information with main control unit deducts described first difference, obtains second difference;
523) deduct Transmission Time Interval with described second difference.
4, absolute time collecting method according to claim 3 is characterized in that, described Transmission Time Interval is the time that send information to main control unit from veneer.
5, a kind of absolute time collecting method is characterized in that, comprising:
A) obtain the plate veneer unit signal and produce relative time constantly;
B) the absolute time signal Synchronization is arrived plate veneer unit;
Relative time when c) obtaining the absolute time signal Synchronization to plate veneer unit;
Absolute time when d) obtaining the absolute time signal Synchronization to plate veneer unit;
Relative time when e) utilizing described absolute time, the relative time in the signal generation moment and absolute time signal Synchronization to plate veneer unit, signal calculated produces absolute time constantly.
6, absolute time collecting method according to claim 5 is characterized in that step e) further comprises:
Relative time values subtraction signal when e31) arriving plate veneer unit with the absolute time signal Synchronization produces relative time values constantly;
E32) the absolute time value during to plate veneer unit deducts step e31 with the absolute time signal Synchronization) difference that obtains.
7, a kind of absolute time data acquisition system is characterized in that, comprising:
The warning information that plate veneer unit, described plate veneer unit are used to obtain on the veneer produces relative time constantly, and will have the warning information that warning information produces the relative time of relative time constantly and delivery time and send to main control unit;
Main control unit, receive the warning information that described plate veneer unit is sent, and the absolute time when obtaining to receive described warning information, and according to the relative time in the received warning information generation moment and the relative time of warning information delivery time, and the described absolute time that obtains is calculated, and warning information produces the absolute time in the moment on the described plate veneer unit.
8, absolute time data acquisition system according to claim 7 is characterized in that, described plate veneer unit comprises relative time timing module and relative time sending module, wherein,
Described relative time timing module is used for carrying out timing behind the plate veneer unit initialization procedure, produce relative time constantly to obtain warning information;
Described relative time sending module is used for having the warning information that warning information produces the relative time of relative time constantly and delivery time to the main control unit transmission.
9, absolute time data acquisition system according to claim 7 is characterized in that, described main control unit comprises absolute time timing module and absolute time computing module, wherein,
Absolute time when described absolute time timing module is used to obtain to receive warning information;
Described absolute time computing module is used to utilize warning information to produce relative time constantly, and the relative time of information delivery time and described absolute time calculate warning information and produce absolute time constantly.
10, a kind of absolute time data acquisition system is characterized in that, comprising:
Main control unit is used to produce the absolute time signal, and described absolute time signal Synchronization is arrived plate veneer unit;
Plate veneer unit, the relative time values when relative time values when being used to obtain the warning information generation and absolute clock signal Synchronization arrive plate veneer unit; Reception is synchronized to the absolute time signal of plate veneer unit; Relative time values when utilizing warning information to produce, absolute clock signal Synchronization relative time values and the absolute time value of absolute clock signal Synchronization during to plate veneer unit during to plate veneer unit calculated the absolute time value in the warning information generation moment.
11, absolute time data acquisition system according to claim 10 is characterized in that, described plate veneer unit comprises relative time timing module, absolute time receiver module and absolute time computing module, wherein,
Described relative time timing module is used for carrying out timing behind the plate veneer unit initialization procedure, the relative time values when relative time values when producing to obtain warning information and absolute time signal Synchronization arrive plate veneer unit;
Described absolute time receiver module is used to receive the absolute time signal when being synchronized to plate veneer unit;
Relative time values when described absolute time computing module is used to utilize warning information to produce, absolute time signal Synchronization relative time values and the absolute time value of absolute time signal Synchronization during to plate veneer unit during to plate veneer unit calculated the absolute time value in the warning information generation moment.
12, absolute time data acquisition system according to claim 10 is characterized in that, described main control unit comprises the absolute time timing module, and described absolute time timing module is used to produce the absolute time signal.
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|---|---|---|---|---|
| CN102664882A (en) * | 2012-04-16 | 2012-09-12 | 华为软件技术有限公司 | Time recording method, and associated equipment and system |
| CN102809961B (en) * | 2012-08-27 | 2014-09-17 | 中国科学院国家天文台南京天文光学技术研究所 | Solution for time varying and time slag problems of telescope control system |
| CN110474702A (en) * | 2018-05-10 | 2019-11-19 | 杭州涂鸦信息技术有限公司 | One kind being based on System Clock, and relies on the implementation method for the Time Service that server-side is automatically repaired |
| CN109257132B (en) * | 2018-09-04 | 2020-02-11 | 武汉乐庭软件技术有限公司 | Multi-sensor data sensing method and system based on time synchronization |
| CN110224779B (en) * | 2019-06-21 | 2021-03-09 | 北京东土军悦科技有限公司 | Method, device, equipment and medium for calculating absolute time of equipment for receiving and sending message |
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2006
- 2006-04-21 CN CNB2006100745950A patent/CN100502314C/en active Active
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| CN101060425A (en) | 2007-10-24 |
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