CN103973804A - Method and device for setting terminal time - Google Patents
Method and device for setting terminal time Download PDFInfo
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- CN103973804A CN103973804A CN201410212112.3A CN201410212112A CN103973804A CN 103973804 A CN103973804 A CN 103973804A CN 201410212112 A CN201410212112 A CN 201410212112A CN 103973804 A CN103973804 A CN 103973804A
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Abstract
The embodiment of the invention discloses a method and device for setting terminal time. The method for setting the terminal time comprises the steps of acquiring the network time of at least two servers, generating the target set time according to the acquired network time of the servers and setting the terminal time based on the target set time. By adopting the technical scheme, it can be achieved that when acquisition of the network time of part of servers fails due to a poor network environment, the terminal time can still be set based on the network time acquired from the other servers, and the defect that when the terminal time is set based on single network time, errors will occur if the network time is attacked and consequently the terminal time setting accuracy will be greatly lowered can be overcome.
Description
Technical field
The embodiment of the present invention relates to communication technical field, relates in particular to method to set up and the device of a kind of terminal time.
Background technology
At present, the terminal such as smart mobile phone, computer, personal digital assistant is used by increasing user.Terminal has the function identical with clock and watch or wrist-watch conventionally, can carry out setting and the demonstration of time.User can real time inspection and is set terminal time, to arrange go off daily activity.In addition, the application program being arranged in terminal also can be based on realization event prompting function terminal time.
From the webserver, obtaining current time, is that terminal is determined one of mode of time.For example, in Android (android) mobile phone, have one automatically to time function very convenient and practical, be by ntp (NetworkTime Protocol, NTP (Network Time Protocol)) the ntp server from network obtains network time, then new cell-phone time more.But ntp server is public, and be vulnerable to attack, and need networking just can access, thus often occur the network time mistake of obtaining cause to time mistake, experience very poor.
Summary of the invention
The embodiment of the present invention provides method to set up and the device of a kind of terminal time, with realize terminal time precisely to time, promote user and experience.
First aspect, the embodiment of the present invention provides the method to set up of a kind of terminal time, and the method comprises:
Obtain the network time of at least two servers;
According at least two accessed network times generation target setup times;
Based on described target setup times to arranging terminal time.
Second aspect, the embodiment of the present invention also provides the setting device of a kind of terminal time, and this device comprises:
Network time acquiring unit, for obtaining the network time of at least two servers;
Target setup times generation unit, for generating target setup times according at least two accessed network times;
Terminal time setting unit, for based on described target setup times to arranging terminal time.
The technical scheme that the embodiment of the present invention provides, can realize from a plurality of servers and obtain network time, thereby can obtain according to obtained a plurality of network times a target setup times is set terminal time, therefore when making the network time of part server obtain unsuccessfully because network environment is poor, network time that still can be based on getting from other servers to carry out terminal time to time, and also can overcome and only utilize the single network time to carrying out terminal time constantly, if network time is subject to malicious attack, there is mistake, can greatly reduce terminal to time accuracy rate this drawback.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method to set up of the embodiment of the present invention one a kind of terminal time of providing;
Fig. 2 is the schematic flow sheet of the method to set up of the embodiment of the present invention two a kind of terminal time of providing;
Fig. 3 is a kind of terminal time of the axle schematic diagram that the embodiment of the present invention two provides;
Fig. 4 is the structural representation of the setting device of the embodiment of the present invention three a kind of terminal time of providing.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not entire infrastructure.
For the technical scheme that the clearer elaboration embodiment of the present invention provides, existing to carrying out specific explanations the terminal time described in the embodiment of the present invention.Refer to the time of operating system in terminal the terminal time in the embodiment of the present invention, is to take the time of terminal local clock as benchmark generation.Terminal local clock just starts timework when terminal powers on, and produces in real time and shows the terminal time changing.Can be arranged this terminal time, and then terminal local clock is according to re-starting timing set terminal time, produces and show newly-installed terminal time.
Embodiment mono-
Fig. 1 is the schematic flow sheet of the method to set up of the embodiment of the present invention one a kind of terminal time of providing.Situation when the present embodiment carries out school applicable to the network time of utilizing server to provide to terminal time, the method can be carried out by the setting device of terminal time, and described device is realized by software and/or hardware.Described device can be built in terminal inner, also can be used as and can carry out the product of data communication with terminal and independently exist.Referring to Fig. 1, the method specifically comprises the steps:
110, obtain the network time of at least two servers.
In the present embodiment, obtain the network time of at least two servers, can be specially: with polling mode or parallel mode, to a plurality of servers, initiate access request; Receive the network time that a plurality of servers return according to access request.
Wherein, what is called is initiated access request with polling mode to a plurality of servers and is referred to: according to the access time to a plurality of servers of setting, asynchronous to a plurality of servers initiation access request; What is called is initiated access request with parallel mode to a plurality of servers and is referred to: to a plurality of servers, initiate access request simultaneously.
The server that receives access request is to be terminal time and current synchronized a kind of equipment of real time, and this equipment can return to a network time of synchronizeing with the current real time according to access request.Preferably, described server is ntp server.
120, according at least two accessed network times, generate target setup times.
In the present embodiment, can be directly to each accessed network time according to the computational methods of setting, calculate a target setup times.Concrete, can directly calculate the mean value of each accessed network time, using this mean value as target setup times; Or, each accessed network time is weighted and obtains target setup times.Wherein, the weight coefficient of each network time can be the degree of belief to each server obtaining based on local historical statistical data, and the weight coefficient sum of the all-network time getting should be 1.For example, get altogether the network time of three servers, the weight coefficient of the network time A of first server is the degree of belief 0.5 to first server, the weight coefficient of the network time B of second server is the degree of belief 0.3 to second server, the weight coefficient of the network time C of the 3rd server is the degree of belief 0.2 of pair of three server, and target setup times is: 0.5A+0.3B+0.2C.
Consider that the present embodiment is after getting each network time, just according to accessed a plurality of network times, generate target setup times, between the terminal time when terminal time while therefore getting each network time and generation target setup times, have certain intervals.And while initiating access request with polling mode to a plurality of servers, the terminal time while getting each network time can be different; While initiating access request with parallel mode to a plurality of servers, due to the difference of each server performance and network environment of living in, the terminal time while getting each network time also can be different.
Therefore, for realize terminal time precisely to time, after getting each network time, the time interval between terminal time in the time of also can further determining respectively current terminal time and get each network time, obtain a plurality of current times according to the determined time interval and each accessed network time, and then a plurality of current times that obtain are averaged or weighted calculation obtains target setup times.Owing to may there are differences between a plurality of network times that get, thus take network time as the determined current time of benchmark may be also not identical, can a plurality of current times be processed according to setting strategy, to determine target setup times.
130, based on described target setup times to arranging terminal time.
After generating target setup times according at least two accessed network times, be set to generated target setup times terminal time that can be directly current.In the situation that target setup times is a plurality of current times that obtain to be averaged or weighted calculation obtains according to above-mentioned, also can first calculate and a plurality of current times that obtain be averaged or weighted calculation obtains the spent duration of target setup times, according to target setup times and described duration being added to the time value that obtains to arranging current terminal time.
The technical scheme that the embodiment of the present invention provides, can realize from a plurality of servers and obtain network time, thereby can obtain according to obtained a plurality of network times a target setup times is set terminal time, therefore when making the network time of part server obtain unsuccessfully because network environment is poor, network time that still can be based on getting from other servers to carry out terminal time to time, and also can overcome and only utilize the single network time to carrying out terminal time constantly, if network time is subject to malicious attack, there is mistake, can greatly reduce terminal to time accuracy rate this drawback.
Embodiment bis-
Fig. 2 is the schematic flow sheet of the method to set up of the embodiment of the present invention two a kind of terminal time of providing, the present embodiment, on the basis of the various embodiments described above, will generate target setup times and do further to optimize to these two steps are set terminal time based on described target setup times according at least two accessed network times.Referring to Fig. 2, the method comprises the steps:
210, obtain the network time of at least two servers.
220, determine each current time corresponding with each accessed network time.
In the present embodiment, can be according to formula CurrTime
i=NetTime
i+ Δ T
i, determine each current time corresponding with each accessed network time.Wherein, CurrTime
ibe i current time, NetTime
ifor i accessed network time, Δ T
ifor current terminal time and get the time interval between the terminal acquisition time of i network time, i be 1 to get network time number natural number.
Wherein, described current terminal time is for after getting the network time of at least two servers, carry out describedly to determine and current terminal time during this step of each current time that accessed each network time is corresponding terminal acquisition time Δ T
iterminal time when getting i network time.And described each current time is to take each accessed network time as the determined time of benchmark.
Further, current terminal time and get the computational methods in the time interval between the terminal acquisition time of i network time, can be specially: calculate and get the terminal acquisition time of i network time and second time interval of the reference terminal of setting between the time; The very first time interval of the reference terminal that calculates described current terminal time and setting between the time; Using the difference at second time interval and very first time interval as current terminal time and get the time interval Δ T between the terminal acquisition time of i network time
i.
One of the present embodiment preferred embodiment in, the reference terminal time of above-mentioned setting is terminal system start-up time.Terminal time when described terminal system refers to this starting up of terminal start-up time.Therefore,, before determining each current time corresponding with each accessed network time, also comprise:
Detection gets terminal acquisition time and the time interval Δ T1 of terminal system between start-up time of i network time
i;
Detect described current terminal time and the terminal system time interval Δ T2 between start-up time
i;
According to formula Δ T
i=Δ T2
i-Δ T1
i, calculate described current terminal time and get the time interval Δ T between the terminal acquisition time of i network time
i.
230, determined at least two current times are screened, the current time obtaining according to screening generates target setup times.
In an embodiment of the present embodiment, after determining each current time corresponding with each accessed network time, calculate the difference between determined each current time, according to the fault-tolerant duration of described difference and setting, determined current time is screened; The mean value of each current time that screening is obtained is as target setup times.
Wherein, according to the fault-tolerant duration of described difference and setting, determined current time is screened, can specifically comprise: if the difference of certain current time and other N current time is all greater than the fault-tolerant duration of setting, delete this current time, wherein the amount threshold of N for setting.
Certainly, also can to determined at least two current times, screen according to other modes, for example, directly delete current time maximum in determined at least two current times and minimum current time.Each current time that screening is obtained is weighted and obtains target setup times.Weight coefficient can according to network time corresponding server degree of belief determine.
240, calculate to carry out determined current time is screened and the current time that obtains according to screening generates the duration that target setup times spends.
In the present embodiment, after generating target setup times, can again detect current terminal time and the time interval of terminal system between start-up time, this time interval and above-mentioned execution are detected to described current terminal time and the time interval Δ T2 of terminal system between start-up time
idifference as carrying out, determined current time is screened and the current time that obtains according to screening generates the duration that target setup times spends.
250, target setup times is added and obtains new target setup times with the duration calculating, is set terminal time is new target setup times.
For the method described in clearer elaboration the present embodiment, existing with according to the network time of three ntp servers that get, to the smart mobile phone time of Android operating system is installed, is set to example and describes.This setting up procedure comprises:
Obtain the network time of three ntp servers;
If while getting the network time ntpTime_A of first ntp server, by calling current terminal time of SystemClock.elapsedRealtime () function check and the time interval elapsedTime_A of terminal system between start-up time;
If while getting the network time ntpTime_B of second ntp server, by calling current terminal time of SystemClock.elapsedRealtime () function check and the time interval elapsedTime_B of terminal system between start-up time;
If while getting the network time ntpTime_C of the 3rd ntp server, by calling current terminal time of SystemClock.elapsedRealtime () function check and the time interval elapsedTime_C of terminal system between start-up time;
After getting the network time of three ntp servers, by calling SystemClock.elapsedRealtime (), detect the time interval current_ElapsedTime of current terminal time and terminal system start-up time, then according to the network time ntpTime_A of first ntp server, calculate first current time currTime_A, according to the network time ntpTime_B of second ntp server, calculate second current time currTime_B, according to the network time ntpTime_C of the 3rd ntp server, calculate the 3rd current time currTime_C, first current time currTime_A=ntpTime_A+ (current_ElapsedTime-elapsedTime_A) wherein, second current time currTime_B=ntpTime_B+ (current_ElapsedTime-elapsedTime_B), the 3rd current time currTime_C=ntpTime_C+ (current_ElapsedTime-elapsedTime_C),
Screening strategy based on setting is deleted the invalid current time in above-mentioned three current times;
Weighted strategy based on setting is weighted the current time after screening, to obtain target setup times;
By call function SystemClock.setCurrentTimeMillis (currTime+SystemClock.elapsedRealtime ()-current_ElapsedTime), be set to terminal time: currTime+SystemClock.elapsedRealtime ()-current_ElapsedTime.
Wherein, the deletion strategy of above-mentioned setting can be specially:
Set a fault-tolerant duration timeErrorThreshold, calculate respectively the time difference time_A_B between currTime_A, currTime_B, time difference time_B_C between currTime_B, currTime_C, the time difference time_A_C between currTime_A, currTime_C;
If time_B_C, time_A_C are all greater than timeErrorThreshold, and time_A_B is less than timeErrorThreshold, judge that currTime_C error ratio is larger, be invalid current time, currTime_C is deleted.
Fig. 3 is a kind of terminal time of the axle schematic diagram that the embodiment of the present invention two provides.Referring to Fig. 3:
Terminal time when this time start shooting for terminal in axle starting point O terminal time place;
At first timing node O1 place: get the network time ntpTime_A of first ntp server, detect current terminal time O1 and terminal system O start-up time between very first time interval 310;
At second timing node O2 place: get the network time ntpTime_B of second ntp server, detect current terminal time O2 and terminal system O start-up time between second time interval 320;
At the 3rd timing node O3 place: get the network time ntpTime_C of the 3rd ntp server, detect current terminal time O3 and terminal system O start-up time between the 3rd time interval 330;
At the 4th timing node O4 place: detect current terminal time of O4 and the 4th time interval 340 of terminal system O start-up time;
Calculate current terminal time of O4 and get the 5th time interval 350 between the terminal acquisition time O1 of first ntp server network time ntpTime_A (i.e. the difference at the 4th time interval 340 and very first time interval 310), the network time ntpTime_A of first ntp server and the 5th time intervals 350 sum are defined as to first current time;
Calculate current terminal time O4 and get second ntp server network time ntpTime_B terminal acquisition time O2 between the 6th time interval 360 (i.e. the difference in the 4th time interval 340 and second time interval 320), the network time ntpTime_B of second ntp server and the 6th time intervals 360 sum are defined as to second current time;
Calculate current terminal time of O4 and get the 7th time interval 370 (i.e. the difference in the 4th time interval 340 and the 3rd time interval 330) between the terminal acquisition time O3 of the 3rd ntp server network time ntpTime_C, the network time ntpTime_C of the 3rd ntp server and the 7th time intervals 370 sum are defined as to the 3rd current time;
In the 8th time interval 380 between the 4th timing node O4 place and the 5th timing node O5 place: determined each current time is screened, and the current time obtaining according to screening generates target setup times;
At the 5th timing node O5 place: be set to terminal time in the 8th time interval 380 between target setup times and the 4th timing node O4 place and the 5th timing node O5 place and.
The technical scheme that the present embodiment provides, be not directly the network time getting to be screened with average treatment and obtains target setup times, but by current terminal time and get the time interval between the terminal acquisition time of each network time, and carry out determined current time is screened and the current time that obtains according to screening generates the spent duration of target setup times, these two time interval factors are taken into account in the lump, finally by obtained network time and the described time interval, because of usually common, determine that new target setup times is to arranging terminal time.Obviously, such set-up mode can improve accuracy during school to terminal time greatly, promotes user and experiences.
Embodiment tetra-
Fig. 4 is the structural representation of the setting device of the embodiment of the present invention three a kind of terminal time of providing, situation when the present embodiment carries out school applicable to the network time of utilizing server to provide to terminal time.Referring to Fig. 4, the concrete structure of this device is as follows:
Network time acquiring unit 410, for obtaining the network time of at least two servers;
Target setup times generation unit 420, for generating target setup times according at least two accessed network times;
Terminal time, setting unit 430, for based on described target setup times to arranging terminal time.
Further, target setup times generation unit 420, comprising:
Current time is determined subelement 4201, for according to formula CurrTime
i=NetTime
i+ Δ T
i, determine each current time corresponding with each accessed network time, wherein CurrTime
ibe i current time, NetTime
ifor i accessed network time, Δ T
ifor current terminal time and get the time interval between the terminal acquisition time of i network time, i be 1 to get network time number natural number;
Current time is processed subelement 4202, and for determined at least two current times are screened, the current time obtaining according to screening generates target setup times.
Further, target setup times generation unit 420 also comprises time interval computation subunit 4200, before determining that in current time subelement 4201 is determined each current time corresponding with each accessed network time:
Detection gets terminal acquisition time and the time interval Δ T1 of terminal system between start-up time of i network time
i;
Detect described current terminal time and the terminal system time interval Δ T2 between start-up time
i;
According to formula Δ T
i=Δ T2
i-Δ T1
i, calculate described current terminal time and get the time interval Δ T between the terminal acquisition time of i network time
i.
Further, current time is processed subelement 4202, specifically for:
Calculate the difference between determined each current time, according to the fault-tolerant duration of described difference and setting, determined current time is screened;
The mean value of each current time that screening is obtained is as target setup times.
On the basis of technique scheme, terminal time, setting unit 430, specifically for:
Calculate to carry out determined current time is screened and the current time that obtains according to screening generates the duration that target setup times spends;
Described target setup times is added and obtains new target setup times with the duration calculating, and is set terminal time is described new target setup times.
The said goods can be carried out the method that any embodiment of the present invention provides, and possesses the corresponding functional module of manner of execution and beneficial effect.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious variations, readjust and substitute and can not depart from protection scope of the present invention.Therefore, although the present invention is described in further detail by above embodiment, the present invention is not limited only to above embodiment, in the situation that not departing from the present invention's design, can also comprise more other equivalent embodiment, and scope of the present invention is determined by appended claim scope.
Claims (10)
1. the method to set up of terminal time, is characterized in that, comprising:
Obtain the network time of at least two servers;
According at least two accessed network times generation target setup times;
Based on described target setup times to arranging terminal time.
2. the method to set up of terminal time according to claim 1, is characterized in that, at least two network times generation target setup times according to accessed, comprising:
According to formula CurrTime
i=NetTime
i+ Δ T
i, determine each current time corresponding with each accessed network time, wherein CurrTime
ibe i current time, NetTime
ifor i accessed network time, Δ T
ifor current terminal time and get the time interval between the terminal acquisition time of i network time, i be 1 to get network time number natural number;
Determined at least two current times are screened, and the current time obtaining according to screening generates target setup times.
3. the method to set up of terminal time according to claim 2, is characterized in that, before determining each current time corresponding with each accessed network time, also comprises:
Detection gets terminal acquisition time and the time interval Δ T1 of terminal system between start-up time of i network time
i;
Detect described current terminal time and the terminal system time interval Δ T2 between start-up time
i;
According to formula Δ T
i=Δ T2
i-Δ T1
i, calculate described current terminal time and get the time interval Δ T between the terminal acquisition time of i network time
i.
4. the method to set up of terminal time according to claim 2, is characterized in that, determined at least two current times are screened, and the current time obtaining according to screening generates target setup times, comprising:
Calculate the difference between determined each current time, according to the fault-tolerant duration of described difference and setting, determined current time is screened;
The mean value of each current time that screening is obtained is as target setup times.
5. according to the method to set up of the terminal time described in any one in claim 2-4, it is characterized in that, based on described target setup times, to arranging terminal time, comprising:
Calculate to carry out determined current time is screened and the current time that obtains according to screening generates the duration that target setup times spends;
Described target setup times is added and obtains new target setup times with the duration calculating, and is set terminal time is described new target setup times.
6. the setting device of terminal time, is characterized in that, comprising:
Network time acquiring unit, for obtaining the network time of at least two servers;
Target setup times generation unit, for generating target setup times according at least two accessed network times;
Terminal time setting unit, for based on described target setup times to arranging terminal time.
7. the setting device of terminal time according to claim 6, is characterized in that, described target setup times generation unit, comprising:
Current time is determined subelement, for according to formula CurrTime
i=NetTime
i+ Δ T
i, determine each current time corresponding with each accessed network time, wherein CurrTime
ibe i current time, NetTime
ifor i accessed network time, Δ T
ifor current terminal time and get the time interval between the terminal acquisition time of i network time, i be 1 to get network time number natural number;
Current time is processed subelement, and for determined at least two current times are screened, the current time obtaining according to screening generates target setup times.
8. the setting device of terminal time according to claim 7, it is characterized in that, described target setup times generation unit also comprises time interval computation subunit, before determining that in described current time subelement is determined each current time corresponding with each accessed network time:
Detection gets terminal acquisition time and the time interval Δ T1 of terminal system between start-up time of i network time
i;
Detect described current terminal time and the terminal system time interval Δ T2 between start-up time
i;
According to formula Δ T
i=Δ T2
i-Δ T1
i, calculate described current terminal time and get the time interval Δ T between the terminal acquisition time of i network time
i.
9. the setting device of terminal time according to claim 7, is characterized in that, described current time is processed subelement, specifically for:
Calculate the difference between determined each current time, according to the fault-tolerant duration of described difference and setting, determined current time is screened;
The mean value of each current time that screening is obtained is as target setup times.
10. according to the setting device of the terminal time described in any one in claim 7-9, it is characterized in that, described terminal time setting unit, specifically for:
Calculate to carry out determined current time is screened and the current time that obtains according to screening generates the duration that target setup times spends;
Described target setup times is added and obtains new target setup times with the duration calculating, and is set terminal time is described new target setup times.
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| CN109560889A (en) * | 2018-11-09 | 2019-04-02 | 福建福诺移动通信技术有限公司 | A method of realizing App and server-side time synchronization |
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