CN103684815B - Keep-alive method, device and system for data transmission link - Google Patents
Keep-alive method, device and system for data transmission link Download PDFInfo
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- CN103684815B CN103684815B CN201210322475.3A CN201210322475A CN103684815B CN 103684815 B CN103684815 B CN 103684815B CN 201210322475 A CN201210322475 A CN 201210322475A CN 103684815 B CN103684815 B CN 103684815B
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Abstract
The invention discloses a keep-alive method, device and system for a data transmission link. The keep-alive method comprises the following steps: business data is transmitted through a first transmission link between a terminal side and a network side; heartbeat detection data and heartbeat detection response data are transmitted through a second transmission link between the terminal side and the network side, wherein the first transmission link and the second transmission link are in long connection between the terminal side and the network side based on IP (Internet Protocol) network in a same communication network, different TCP (Transmission Control Protocol) ports are used by the first transmission link and the second transmission link on the network side, and the first transmission link adopts a preset keep-alive heartbeat cycle to keep the long connection alive; according to the heartbeat detection data and the heartbeat detection response data, the actual keep-alive heartbeat cycles of keeping the long connection alive of the first transmission link can be determined and the actual keep-alive heartbeat cycles are synchronously transmitted to the first transmission link. By the adoption of the technical scheme, the accuracy of heartbeat detection results can be fairly improved.
Description
Technical field
The present invention relates to data processing technical field, especially relate to a kind of keepalive method of data transmission link,
Apparatus and system.
Background technology
The data service with long online feature generally adopts heartbeat mechanism to realize the agreement based on interconnection between network
The keep-alive of the transmission link of (ip, internet protocol), and in the context of mobile communication networks, by mobile terminal institute
The core parameter configuration of access network is different, and the cycle leading to the long keep-alive connecting transmission link is also incomplete same, if
Using fixing heart beat cycle, then it is likely to occur when heart beat cycle is more than the network keep alive cycle, connection cannot keep-alive；And take care
When hop cycle is much smaller than the network keep alive cycle, heartbeat packet is excessively frequent, sending and during transmission heartbeat packet, to the power consumption of terminal and
The consumption of Internet resources is excessive.
In order to solve the above problems, realize self adaptation under different communication network environment for the heart beat cycle, some business systems
The method that system employs heartbeat detection, by the cooperation of end side and network side, realizes the keep-alive to different communication network environment
The accuracy in cycle detects.As shown in Figure 1a, heartbeat detection generally includes end side and network side, and end side may be mounted at end
On end, network side may be mounted in server, wherein, end side is provided with heartbeat detection engine modules, network side is arranged
There is heartbeat detection service module, carry out growing connection by ip network between end side and network side, and, network side and end side
Connect interaction heartbeat detection packet to determine the optimum heart beat cycle under this communication network environment also by this length.
The keepalive method of the data transmission link proposing in prior art, when determining keep-alive heart beat cycle, heartbeat detection
Share a long connection transmission link with business transmission, during heartbeat detection, should with business while transmitting heartbeat packet
With the transmission of the regular traffic data of system, occur that detection heart beat cycle is more than actual keep-alive duration during heartbeat detection
And the situation that communication link is disconnected, the result accuracy that heartbeat detection obtains therefore can be made relatively low.
Content of the invention
Embodiments provide a kind of keepalive method of data transmission link, apparatus and system, can preferably carry
High data transmission link, when carrying out keep-alive, determines the accuracy of keep-alive heart beat cycle.
A kind of keepalive method of data transmission link, comprising: pass through the first transmission link between end side and network side and pass
Defeated business datum；Pass through the second transmission link between end side and network side and transmit heartbeat detection data and heartbeat detection number of responses
According to, wherein said first transmission link and the second transmission link be end side and network side under identical communication network, be based on
The long connection that Internet Protocol ip network is set up, described first transmission link and the second transmission link use different in network side
Transmission control protocol tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle；According to institute
State heartbeat detection data and heartbeat detection response data, determine that described first transmission link carries out growing the actual keep-alive connecting keep-alive
Heart beat cycle is simultaneously synchronized to the first transmission link.
A kind of keep-alive device of data transmission link, this device is located at end side, comprising: the first connection management module, uses
In and network side between pass through the first transmission link transmission services data；Second connection management module, for and network side between
Heartbeat detection data and heartbeat detection response data are transmitted by the second transmission link；Heartbeat algorithm module, for according to described
Heartbeat detection data and heartbeat detection response data, determine that described first transmission link carries out growing the actual keep-alive heart connecting keep-alive
Hop cycle；Interface module, the actual keep-alive heart beat cycle for determining heartbeat algorithm module is synchronized to the first transmission link；
Wherein, described first transmission link and the second transmission link be end side and network side under identical communication network, based on because
The long connection that special fidonetFido ip network is set up, described first transmission link and the second transmission link use different in network side
Tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle.
A kind of keep-alive device of data transmission link, this device is located at network side, comprising: the first connection management module, uses
In and end side between pass through the first transmission link transmission services data；Second connection management module, for logical between end side
Cross the second transmission link transmission heartbeat detection data and heartbeat detection response data；Session management module, for by second
The end side that transmission link connects conversates management；Heart beat cycle statistical analysis module, for according to described heartbeat detection number
According to heartbeat detection response data, determine that described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive；Connect
Mouth module, the actual keep-alive heart beat cycle for determining heart beat cycle statistical analysis module is synchronized to the first transmission link；
Wherein, described first transmission link and the second transmission link be end side and network side under identical communication network, based on because
The long connection that special fidonetFido ip network is set up, described first transmission link and the second transmission link use different in network side
Tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle.
Using technique scheme, when keep-alive is carried out to the long data transmission link connecting, business datum is passed through the
One transmission link transmission, the heartbeat detection data and heartbeat detection response data that determine keep-alive heart beat cycle is passed through second and transmits
Link transmission, wherein, the first transmission link and the second transmission link that end side and network side are set up, in networking side using different
Tcp port so that during heartbeat detection, the transmission of heartbeat detection data will not be disturbed by business datum, pass
Defeated heartbeat detection data and heartbeat detection response data do not interfere with the transmission of business datum such that it is able to preferably improve the heart yet
Jump the accuracy of result of detection.
Brief description
Fig. 1 a is the keep-alive system architecture diagram of the data transmission link of proposition in prior art；
Fig. 1 b is the keep-alive system architecture diagram of the data transmission link of proposition in the embodiment of the present invention one；
Fig. 2 is the composition of the keep-alive device of the data transmission link positioned at end side of proposition in the embodiment of the present invention one
Structural representation；
Fig. 3 is the composition of the keep-alive device of the data transmission link positioned at network side of proposition in the embodiment of the present invention one
Structural representation；
Fig. 4 is the keepalive method flow chart of the data transmission link of proposition in the embodiment of the present invention two；
Fig. 5 is the keepalive method flow chart of the data transmission link of proposition in the embodiment of the present invention two；
Fig. 6 is the heartbeat algorithm schematic diagram of proposition in the embodiment of the present invention two.
Specific embodiment
For present in prior art, in the inaccurate problem of keep-alive heart beat cycle determining data link, the present invention is real
Apply a technique proposed herein scheme, heartbeat detection data and the heartbeat detection response data of the transmission of keep-alive heart beat cycle will be determined
Transmission link be transmitted independent of service transmission link, when keep-alive is carried out to the long data transmission link connecting, by industry
Business data and determine keep-alive heart beat cycle heartbeat detection data by different ip network transmissions under same communication network environment,
So that during heartbeat detection, the transmission of heartbeat detection data will not be disturbed by business datum, business datum is passing
Also will not be affected by heartbeat detection data and heartbeat detection response data during defeated such that it is able to preferably improve heart beating
The accuracy of result of detection.
Below in conjunction with each accompanying drawing to embodiment of the present invention technical scheme main realize principle, specific embodiment and
It is set forth in the beneficial effect that should be able to reach.
Embodiment one
As shown in Figure 1 b, it is in the embodiment of the present invention one, the keep-alive system architecture diagram of the data transmission link of proposition, including
End side and network side.Wherein: end side can include mobile terminal, wireless terminal etc., network side can include server.
End side, including the keep-alive device of service customer end data transmission link, service customer end and keep-alive device set
Put in the terminal, for example, can be arranged in mobile terminal or wireless terminal.Wherein, pass through the between end side and network side
One transmission link transmission services data, passes through the second transmission link and network side between and transmits heartbeat detection data and heartbeat detection
Response data, according to described heartbeat detection data and heartbeat detection response data, determines that described first transmission link carries out growing even
Connect the actual keep-alive heart beat cycle of keep-alive and be synchronized to the first transmission link.Wherein said first transmission link and the second chain
Road be end side and network side under identical communication network, the long connection set up based on Internet Protocol ip network, described the
One transmission link and the second transmission link use different transmission control protocol (tcp, transmission in network side
Control protocol) port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle.
Specifically, as shown in Fig. 2 the keep-alive device being located at the data transmission link of end side includes the first connection management mould
Block 201, the second connection management module 202, heartbeat algorithm module 203 and interface module 204, wherein:
First connection management module 201, for passing through the first transmission link transmission services data and network side between.
Second connection management module 202, transmits heartbeat detection data for passing through the second transmission link and network side between
With heartbeat detection response data, wherein said first transmission link and the second transmission link are end side and network side in identical
Under communication network, connected based on the length that Internet Protocol ip network is set up, described first transmission link and the second transmission link exist
Network side uses different transmission control protocol tcp ports, and described first transmission link is carried out using default keep-alive heart beat cycle
Long connection keep-alive.
Heartbeat algorithm module 203, for according to described heartbeat detection data and heartbeat detection response data, determining described
One transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heartbeat algorithm module 203, specifically for according to described heartbeat detection data and heartbeat detection response
Data, determines at least one first keep-alive heart beat cycle；Statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines
Described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heartbeat algorithm module 203, specifically for counting to the first keep-alive heart beat cycle determined
Analysis, when the absolute value of the difference of the two neighboring first keep-alive heart beat cycle determined is less than preset first threshold value, will really
Preceding first keep-alive heart beat cycle of fixing time carries out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link；
Or the first keep-alive heart beat cycle determined is carried out with statistical analysiss, determines the keep-alive ensureing that the first transmission link is in keep-alive
Marginal value and the first transmission link are in the not keep-alive marginal value of not keep-alive, calculate the absolute value of the difference of the two, described absolutely
During to value less than default Second Threshold, using corresponding for described keep-alive marginal value the first keep-alive heart beat cycle as the first transmission link
Carry out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heartbeat algorithm module 203, specifically for by determine apart from current point in time the last time
One keep-alive heart beat cycle is added with step-length Dynamic gene, and the value preset obtaining is as transmission heartbeat detection data next time and heartbeat detection
First keep-alive heart beat cycle of response data.
Specifically, described step-length Dynamic gene includes detection direction and step sizes, and described heartbeat algorithm module is specifically adopted
Determine at least one first keep-alive heart beat cycle: t with following formulai=ti-1+f(si-1, ri)；
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission next time
Heartbeat detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection side
To riIt is step sizes, is determined with adjusting interval product by regulation coefficient, before detection direction determines, adjust interval
Value is the first keep-alive heart beat cycle that the last time is determined, after detection method determines, the interval value of adjustment is
The nearly data transmission link once determined can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive the
The difference of one keep-alive heart beat cycle.
Interface module 204, the actual keep-alive heart beat cycle for determining heartbeat algorithm module 203 is synchronized to the first biography
Transmission link.
Network side, including the server being arranged on network side, the keep-alive device of business service end data transmission link sets
Put in the server of network side, between network side and end side, pass through the first transmission link transmission services data；And and eventually
Pass through the second transmission link between side and transmit heartbeat detection data and heartbeat detection response data, according to described heartbeat detection number
According to heartbeat detection response data, determine described first transmission link carry out growing the actual keep-alive heart beat cycle connecting keep-alive and with
Walk to the first transmission link.Wherein, described first transmission link and the second transmission link are end side and network side in identical
Under communication network, connected based on the length that Internet Protocol ip network is set up, described first transmission link and the second transmission link exist
Network side uses different tcp ports, and described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle.
Specifically, as shown in figure 3, the keep-alive device being located at the data transmission link of network side includes the first connection management mould
Block 301, the second connection management module 302, session management module 303, heart beat cycle statistical analysis module 304 and interface module
305, wherein:
First connection management module 301, for passing through the first transmission link transmission services data and end side between.
Second connection management module 302, transmits heartbeat detection data for passing through the second transmission link and end side between
With heartbeat detection response data, wherein, described first transmission link and the second transmission link be end side with network side identical
Communication network under, long connection, described first transmission link and the second transmission link set up based on Internet Protocol ip network
Use different tcp ports in network side, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle.
Session management module 303, for conversating management to by the end side that the second transmission link connects.
Heart beat cycle statistical analysis module 304, for according to described heartbeat detection data and heartbeat detection response data, really
Fixed described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heart beat cycle statistical analysis module 304, specifically for according to described heartbeat detection data and heart beating
Probe response data, determines at least one first keep-alive heart beat cycle；The the first keep-alive heart beat cycle determined is counted
Analysis, determines that described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heart beat cycle statistical analysis module 304, specifically for the first keep-alive heart beat cycle determined
Carry out statistical analysiss, be less than preset first threshold value in the absolute value of the difference of the two neighboring first keep-alive heart beat cycle determined
When, preceding for the time that determines the first keep-alive heart beat cycle is carried out growing the actual keep-alive heart connecting keep-alive as the first transmission link
Hop cycle；Or the first keep-alive heart beat cycle determined is carried out with statistical analysiss, determines and ensure that the first transmission link is in guarantor
The keep-alive marginal value lived and the first transmission link are in the not keep-alive marginal value of not keep-alive, calculate the absolute value of the difference of the two,
When described absolute value is less than default Second Threshold, using corresponding for described keep-alive marginal value the first keep-alive heart beat cycle as first
Transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, above-mentioned heart beat cycle statistical analysis module 304, by determine apart from current point in time the last time
One keep-alive heart beat cycle is added with step-length Dynamic gene, and the value preset obtaining is as transmission heartbeat detection data next time and heartbeat detection
First keep-alive heart beat cycle of response data.
Specifically, step-length Dynamic gene includes detection direction and step sizes, described heart beat cycle statistical analysis module tool
Body determines at least one first keep-alive heart beat cycle: t using following formulai=ti-1+f(si-1, ri)；
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission next time
Heartbeat detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection side
To riIt is step sizes, is determined with adjusting interval product by regulation coefficient, before detection direction determines, adjust interval
Value is the first keep-alive heart beat cycle that the last time is determined, after detection method determines, the interval value of adjustment is
The nearly data transmission link once determined can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive the
The difference of one keep-alive heart beat cycle.
Interface module 305, the actual keep-alive heart beat cycle for determining heart beat cycle statistical analysis module is synchronized to
First transmission link.
It should be noted that the keep-alive system of transmission link that the embodiment of the present invention proposes here, transmitting by second
When link transmission heartbeat detection data and heartbeat detection response data, can be, but not limited to using following two methods:
First method: heartbeat detection data is sent by the lateral network side of terminal, the lateral end side of network sends heart beating and visits
Survey response data.
Second method: heartbeat detection data is sent by the lateral end side of network, the lateral network side of terminal sends heart beating and visits
Survey response data.
Embodiment two
The embodiment of the present invention two here to send heartbeat detection data by the lateral network side of terminal, send out by the lateral end side of network
Send to be described in detail as a example heartbeat detection response data, in this way, setting data transmission link in the terminal
Keep-alive device, when determining that the first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive, can consider
, in the transmitting procedure of the second transmission link, the network of the second transmission link is even for heartbeat detection data and heartbeat detection response data
Meet state and user to factors such as the operations of terminal, may further ensure that the accuracy of result of detection.That is, terminal
In be provided with keep-alive device for data transmission link, be provided for the keep-alive of data transmission link in the server of network side
Device, for ease of distinguishing, the part being used for realizing transmission services data function in terminal is referred to as by the embodiment of the present invention two here
For service customer end, the part being used for realization transmission heartbeat detection data and heartbeat detection response data function is referred to as heart beating
Detection engine, responsively, the part being used in server realizing receiving service data function is referred to as business service end, for reality
Now the part of transmission heartbeat detection data and heartbeat detection response data function is referred to as heartbeat detection service unit.
Refer to the system architecture shown in Fig. 1 b, the keep-alive side of the data transmission link that the embodiment of the present invention two proposes here
Method, as shown in figure 4, its specific implementation process is as follows:
Step 401, sets up the ip network connection between server and terminal.
Pass through the first transmission link transmission services between the business service end in service customer end server in terminal
Data, passes through the second transmission link transmission between the heartbeat detection service unit in heartbeat detection engine server in terminal
Heartbeat detection data and heartbeat detection response data.Wherein, described first transmission link and the second transmission link be end side and
Network side under identical communication network, the long connection set up based on Internet Protocol ip network, described first transmission link and
Second transmission link uses different tcp ports in network side, and described first transmission link is entered using default keep-alive heart beat cycle
Row is long to connect keep-alive.
It should be noted that two set up between terminal server connect data transfer chain based on the long of ip network
Road, it is possible to use identical ip address, but in network side, the tcp port numbers distributing to two transmission links are different.
Specifically, can be found in the system architecture shown in Fig. 1 b, the heartbeat detection engine in end side, terminal and business are objective
Communicated by interface (if1 as shown in Figure 1 b) between the end of family, set up between service customer end and business service end and be based on
First transmission link of ip network, it is not shown that tcp port numbers are assumed to be 102(in figure).Heartbeat detection engine is independent of business visitor
Family end is run, and service customer end passes through the first transmission link and sends business datum to the business service end in server, distributes tcp
In port numbers position tcp101, and the second connection management module of heartbeat detection engine and heartbeat detection service unit second is even
Connect between management module, set up the second transmission link based on ip network, distribution tcp port numbers are tcp102, heartbeat detection draws
Hold up and heartbeat detection data is sent to network side by the second transmission link, and receive the heartbeat detection number of responses of network side feedback
According to.Pass through interface (as shown in Figure 1 b between the heartbeat detection service unit in network side, server and business service end
If2) communicated, between business service end and service customer end, the first transmission link, service customer end are set up based on ip network
In the first connection management module and business service end in the first connection management module between set up the first transmission link, service
Heartbeat detection service unit in device runs independent of business service end, the second connection management mould in heartbeat detection service unit
Between connection management module 201 in block 301 and heartbeat detection engine, second transmission link, business service are set up based on ip network
End is by the business datum between the first transmission link transmission and service customer end, and passes through the second transmission link receiving terminal
Side send heartbeat detection data and to end side send heartbeat detection response data.
It is preferred that setting up the long connection based on an ip network between end side and network side, and set up based on second
After the long connection of ip network, can carry out growing the keep-alive of connection by default or system default keep-alive heart beat cycle.For example,
System default keep-alive heart beat cycle is 8 minutes, then two transmission links after initialization, all can be with 8 minutes for heart beating keep-alive
Cycle carries out keep-alive, and certainly, the first transmission link can also carry out keep-alive, the second chain with 8 minutes for heart beating keepalive period
Road does not carry out keep-alive using any heart beating keepalive period.
Step 402, the lateral network side of terminal sends heartbeat detection data, and receives the heartbeat detection response of network side feedback
Data.
Wherein, for same terminal, two transmission links based on ip network connection are set up respectively with external server
In the case of, the keep-alive heart beat cycle of two transmitting two paths based on ip network having built up is identical, therefore can be by the heart
The function that jump keepalive period detects is stripped out from business transmitting procedure and independently carries out, and the transmission of business datum is only long even at it
Connect the interaction realizing business datum, and with default before actual heart beating keepalive period, (i.e. optimum heart beating keepalive period) was verified
Or system default keep-alive heart beat cycle realizes the long keep-alive connecting it is ensured that keep-alive heart beat cycle detection process does not interfere with industry
The normal operation of business system, keep-alive heart beat cycle detection process then realizes the reality to current network conditions in its independent connection
The detection of border heart beating keepalive period (i.e. optimum heart beating keepalive period), and due to will not on keep-alive heart beat cycle detecting link
Transmission services data, therefore avoids the interference to keep-alive heart beat cycle detection process for the business datum.
Specifically, the heartbeat detection engine of end side can be using the heart beating keepalive period of the second transmission link as initial week
Phase, heartbeat detection data is sent to network side by the second transmission link, and receives the heart of network side feedback in regulation duration
Jump probe response data.Can also be by way of pre-setting, end side is using a default time parameter as initial week
Phase, heartbeat detection data is sent to network side by the second transmission link, and receives the heart of network side feedback in regulation duration
Jump probe response data.
It is preferred that in the embodiment of the present invention two technique proposed herein scheme, in end side, heartbeat detection engine
Two connection management modules, with the heart beating keepalive period of system default as start cycle, connect to second in heartbeat detection service unit
Connect management module and send heartbeat detection data, and second receiving in regulation duration in network side heartbeat detection service unit connects
Connect the heartbeat detection response data of management module transmission.The second connection management mould in network side, heartbeat detection service unit
After block receives the heartbeat detection data that the second connection management module in heartbeat detection engine sends, the heartbeat detection of feedback response
Response data.For example, it is assumed that system default heart beating keepalive period be 8 minutes it is stipulated that when a length of 3 minutes, current time be 9:00,
Then the connection management module in heartbeat detection engine is in 9:08, by the second transmission link, to heartbeat detection service unit
In the second connection management module send heartbeat detection data, and within 3 minutes, receive and count heartbeat detection service unit
In the heartbeat detection response data sent of the second connection management module, more than 3 minutes afterwards, even if heartbeat detection service is single
The second connection management module in unit still sends heartbeat detection response data, even if receive also no longer being counted.
Step 403, according to described heartbeat detection data and heartbeat detection response data, determines that described first transmission link enters
The long actual keep-alive heart beat cycle connecting keep-alive of row.
Wherein, the heartbeat algorithm module in heartbeat detection engine is according to described heartbeat detection data and heartbeat detection number of responses
According to, determine at least one first keep-alive heart beat cycle, and statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determination
Described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
Specifically, the heartbeat algorithm module in heartbeat detection engine can be, but not limited to using following two ways, to true
The the first keep-alive heart beat cycle made carries out statistical analysiss, determines that described first transmission link carries out growing the actual guarantor connecting keep-alive
Heart beat cycle alive:
First kind of way: statistical analysiss are carried out to the first keep-alive heart beat cycle determined, two neighboring determine
When the absolute value of the difference of the first keep-alive heart beat cycle is less than preset first threshold value, the time that will determine preceding first keep-alive heart beating
Cycle carries out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.For example, it is assumed that determining one of
First keep-alive heart beat cycle is 30 minutes, and preset first threshold value is 30 seconds, and now, the first transmission link remains in keep-alive shape
State, according to heartbeat algorithm, the theoretical value being calculated next first keep-alive heart beat cycle should be 30 minutes 28 seconds, the difference of the two
The absolute value of value is 28 seconds, then be less than 30 seconds, now can be using determine 30 minutes as actual keep-alive heart beat cycle.
The second way: the first keep-alive heart beat cycle determined is carried out with statistical analysiss, determines and ensure the first chain
Road is in the keep-alive marginal value of keep-alive and the first transmission link is in the not keep-alive marginal value of not keep-alive, calculates the difference of the two
Absolute value, when described absolute value is less than default Second Threshold, by corresponding for described keep-alive marginal value the first keep-alive heart beat cycle
Carry out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.For example, it is assumed that a certain moment is through actual spy
The the first keep-alive heart beat cycle recording is 40 minutes, now can determine that the first transmission link remains in keepalive state, warp
Cross and detect again, obtained the first keep-alive heart beat cycle that numerical value is 50 minutes, but now the first transmission link is in
Not keepalive state, then now can proceed to detect, when a certain moment being 40 minutes 50 seconds through detecting the numerical value obtaining,
Now the first transmission link is still within not keepalive state, but the 40 minutes 50 seconds absolute values with the difference of 40 minutes are 50
Second, if now default Second Threshold is 1 minute, meets Rule of judgment, no longer carry out the detection of actual heart beating keepalive period,
Using 40 minutes as actual keep-alive heart beat cycle.
It is preferred that the session management module in setting heartbeat detection service unit in the server, also to the heart connecting
Jump detection engine to conversate management, for example, the heartbeat detection engine of first connection distributes session management unit, to detecting
Have no progeny in journey and reconnect the terminal address that comes up to the session management unit distributed before etc..
It should be noted that statistical analysiss are carried out at least one determined the first keep-alive heart beat cycle it is also possible to by
Heart beat cycle statistical analysis module in heartbeat detection service unit executing, it is preferred that the embodiment of the present invention two is here, at end
Side, the heartbeat algorithm module in heartbeat detection engine, according to the maneuver result of heartbeat detection data, and combine present terminal
Situation, determines at least one first keep-alive heart beat cycle, and carries out the judgement that heartbeat detection finishes, and to determine to
A few first keep-alive heart beat cycle carries out statistical analysiss, then network side is counted by the heart beat cycle in heartbeat detection service unit
Analysis module executes, and so, to execute statistic analysis result by the network side possessing powerful process resource, can preferably save
The process resource of terminal.
Specifically, it is determined that at least one first keep-alive heart beat cycle, comprising: will be apart from the last determination of current point in time
The the first keep-alive heart beat cycle going out is added with step-length Dynamic gene, and the value preset obtaining is as transmission heartbeat detection data next time and the heart
Jump the first keep-alive heart beat cycle of probe response data.Wherein, step-length Dynamic gene includes detection direction and step sizes, permissible
Determine at least one first keep-alive heart beat cycle: t using following formulai=ti-1+f(si-1, ri)；Wherein, ti-1It is that distance is current
The first keep-alive heart beat cycle that time point the last time is determined, tiIt is to transmit heartbeat detection data and heartbeat detection response next time
First keep-alive heart beat cycle of data, f is step-length Dynamic gene, si-1It is detection direction, riIt is step sizes, by regulation coefficient
Interval product determines with adjustment, and before detection direction determines, the interval value of adjustment is first determining the last time
Keep-alive heart beat cycle, after detection method determines, the interval value of adjustment is the data transmission link that the last time is determined
Can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive the first keep-alive heart beat cycle difference.
Step 404, the actual keep-alive heart beat cycle determined is synchronized to the first transmission link, and the first transmission link adopts
Actual keep-alive heart beat cycle carries out keep-alive.
Wherein, after the heartbeat algorithm module of end side calculates multiple first keep-alive heart beat cycles, transmit by second
The all first keep-alive heart beat cycles determined are sent to the heart beat cycle statistical analysis module of network side, heart beat cycle by link
Statistical analysis module carries out sample statistics and analysis to the ip address of the first keep-alive heart beat cycle obtaining, according to the sample of configuration
Require to judge further the actual keep-alive heart beat cycle of certain ip address, that is, the sample according to configuration requires to further determine that the
The actual keep-alive heart beat cycle of one transmission link.
Wherein, the actual keep-alive heart beat cycle determined is synchronized to the first transmission link, under can be, but not limited to adopt
State three kinds of modes:
First kind of way: by the setting of network side heartbeat detection service unit in the server and business service
The actual keep-alive heart beat cycle determined is synchronized to the first transmission link by the interface module that end connects.
The second way: by being connected with service customer end in the setting of end side heartbeat detection engine in the terminal
Interface module the actual heart beating keepalive period determined is synchronized to the first transmission link.
The third mode: comprehensively adopt above two mode, that is, determining the actual keep-alive heart beating of the first transmission link
After cycle, the interface module being connected with service customer end in the heartbeat detection engine of end side is by the actual heart beating determined
Keepalive period is synchronized to service customer end, meanwhile, being connected with business service end in the heartbeat detection service unit of network side
The actual heart beating keepalive period determined is synchronized to business service end by interface module.So, the industry between terminal server
Business transmission link, that is, the long connection of an ip network, can carry out keep-alive by the actual heart beating keepalive period determined, thus
The seriality of guarantee business transmission.
It is preferred that after determining actual keep-alive heart beat cycle and being synchronized to the first transmission link, that is, step 404 it
Afterwards, the second transmission link can also be disconnected, so can preferably save Internet resources, discharge tcp port numbers.
As shown in figure 5, the heart beating of the heartbeat detection engine and network side to elaborate end side below as one example is visited
The specific embodiment of the survey service unit actual keep-alive heart beat cycle of determination:
Step 50, sets up the first transmission link of transmission services data between terminal server, and transmission heart beating is visited
Survey the second transmission link of data and heartbeat detection response data.
Based on the system architecture shown in Fig. 1 b, between terminal server, set up the first transmission link and the second chain
Road, is the long connection set up based on an ip network respectively, the length set up for transmission services data and based on the 2nd ip network
Connect, for transmitting heartbeat detection data and heartbeat detection response data.It is preferred that after two long connection networks are set up, two
Individual network can adopt the keep-alive heart beat cycle of system default to carry out keep-alive.First transmission link normal transmission business datum,
In second transmission link, the heartbeat detection engine of terminal sends heartbeat detection number to the heartbeat detection service unit in server
According to proceeding by heartbeat detection, to determine actual keep-alive heart beat cycle.
Wherein, the heartbeat detection engine in terminal is set up with the heartbeat detection service unit in server and is connected, server
In session management module the heartbeat detection engine on connecting is conversated management, be the heartbeat detection engine on first connection
Distribution session management unit, if the heartbeat detection reconnecting up after keep-alive heart beat cycle detection process terminal aborts
Engine, then be addressed to, for this heartbeat detection engine, the session management unit distributed before.
Step 51, the connection management module in heartbeat detection engine passes through the second transmission link to heartbeat detection service unit
In connection management module send heartbeat detection data, and send heartbeat detection data after judge whether in regulation duration
Receive the heartbeat detection response data that the connection management module in heartbeat detection service unit sends.If it is, execution step
52, on the contrary execution step 53.
It is preferred that the embodiment of the present invention here taking heartbeat detection engine first connection heartbeat detection service unit as a example,
After second transmission link is set up, the session management module in heartbeat detection service unit is that this heartbeat detection engine distributes session
Administrative unit, for carrying out the management of session during heartbeat detection.Connection management module in heartbeat detection engine is with second
The acquiescence keep-alive heart beat cycle of transmission link is initial detection cycle, sends heartbeat detection data to heartbeat detection service unit.
For example, it is possible to by arranging an intervalometer, to carry out the setting of detection cycle by way of changing intervalometer.For example, false
If the acquiescence keep-alive heart beat cycle of the second transmission link is 5 minutes, then, after the second transmission link foundation completes, time point is
8:00, intervalometer is set to 5 minutes, starts intervalometer and carries out timing, then the connection management module in heartbeat detection engine is 8:
When 00, with 5 minutes as detection cycle, that is, it is spaced 5 minutes afterwards, intervalometer reaches when specifying time 8:05 to heartbeat detection service
Unit sends heartbeat detection data, receives the heart that heartbeat detection service unit is sent within (such as 3 minutes) in regulation duration simultaneously
Jump probe response data.
Step 52, according to heartbeat detection data and heartbeat detection response data, determined for the first keepalive period.
According to heartbeat detection data and heartbeat detection response data, the heartbeat algorithm module in heartbeat detection engine is according to the heart
Jump algorithm calculated for the first keepalive period.Wherein, the basic principle of heartbeat algorithm be from the initial keep-alive heart beat cycle of acquiescence start into
Keep-alive heart beat cycle is approached to theoretical keep-alive heart beat cycle (i.e. by the detection of row heart beating keepalive period by heartbeat algorithm
Excellent keep-alive heart beat cycle, is also the actual keep-alive heart beat cycle of transmission link simultaneously).As shown in fig. 6, specifically can adopt following
Formula:
ti=ti-1+f(si-1, ri)
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission next time
Heartbeat detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection side
To riIt is step sizes, determined by the interval product of regulation coefficient and adjustment, formula of stating specific as follows:
ri=α xi
Wherein, α is regulation coefficient, xiIt is that adjustment is interval, before detection direction determines, the interval value of adjustment is nearest
The the first keep-alive heart beat cycle once determined, after detection direction determines, the interval value of adjustment is the last determination
The data transmission link going out can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive the first keep-alive heart beating
The difference in cycle.It is preferred that detection direction numerically can be distinguished with positive and negative.
The interval x of adjustmentiValue mode, when detection direction does not determine, xiValue be gradually increased, mesh
Be as early as possible determination adjustment direction, now xiValue be on the occasion of, and work as detection direction determine after, xiValue be gradually to subtract
Little, now xiValue be negative value it is therefore an objective to the numerical value of more accurate approximation theory keep-alive heart beating.For example, calculate through heart beating
Method calculates, and the numerical value of the detection keep-alive heart beat cycle obtaining is 12 minutes, before detection direction is failed to understand, continues to increase this numerical value,
The interval value of adjustment is on the occasion of detection next time can take 15 minutes, but if calculates through heartbeat algorithm, the spy obtaining
Surveying keep-alive heart beat cycle is 35 minutes, and now the first transmission link is already at not keepalive state, that is, send detection data it
Afterwards, in preset duration, do not receive probe response data, then now need to reduce the interval numerical value of adjustment, visit next time
Survey can take to continue to detect for 20 minutes.
Step 53, if the connection management module in heartbeat detection engine is after sending heartbeat detection data, in regulation duration
Heartbeat detection response data that the connection management module being inside not received by heartbeat detection service unit is sent is it is determined that now
Second transmission link is in not keepalive state.Further, it is determined that the second transmission link be in not keepalive state the reason, if
The reason second transmission link disconnects is because what user caused to the operation of terminal, such as opens offline mode, closes network even
The behavior such as connect, now return execution step 50, in the connection management module in heartbeat detection engine and heartbeat detection service unit
Connection management module set up the second transmission link.If instead being the not keep-alive of the second transmission link that heartbeat timeout causes,
Then execution step 52, reduce the keep-alive heartbeat detection cycle, continue to send heartbeat detection data.
It is preferred that after determining the second transmission link not keep-alive reason, further, determining actual heart beating keep-alive week
During phase, actual heart beating keepalive period can also be determined the reason comprehensive second transmission link not keep-alive.For example, if by
Terminal is operated (as started offline mode) cause the second transmission link to disconnect in user, then not by this in calculating process
List influence factor in, if because heartbeat detection data time-out causes the second transmission link to disconnect, then will in calculating process
The number of times of time-out increases by 1.For example, heartbeat detection packet be sent to when network side it is stipulated that certain threshold value be 10 seconds, if
It is not received by heartbeat detection response data, then in the case of this kind, by overtime time in heartbeat detection calculating process in 10 seconds
Number increase by 1.
Step 54, judges whether the first keep-alive heart beat cycle determined in step 52 is actual heart beating keepalive period, such as
It is really, then execution step 55, conversely, execution step 56.
Wherein, after determining the first keep-alive heart beat cycle, the first keep-alive heart beat cycle determined is counted
Analysis, determines that described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.Specific embodiment can but
It is not limited to using following two ways:
First kind of way: statistical analysiss are carried out to the first keep-alive heart beat cycle determined, two neighboring determine
When the absolute value of the difference of the first keep-alive heart beat cycle is less than preset first threshold value, the time that will determine preceding first keep-alive heart beating
Cycle carries out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.
The second way: the first keep-alive heart beat cycle determined is carried out with statistical analysiss, determines and ensure the first chain
Road is in the keep-alive marginal value of keep-alive and the first transmission link is in the not keep-alive marginal value of not keep-alive, calculates the difference of the two
Absolute value, when described absolute value is less than default Second Threshold, by corresponding for described keep-alive marginal value the first keep-alive heart beat cycle
Carry out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.
Step 55, determines the actual keep-alive heart beat cycle that described first keep-alive heart beat cycle is the first transmission link, execution
Step 57.
Step 56, with the first keep-alive heart beat cycle of determining as detection cycle, the setting of change intervalometer, return execution
Step 51, heartbeat detection engine sends heartbeat detection data again to heartbeat detection service unit again, and in regulation duration
Receive the heartbeat detection data that heartbeat detection service unit is sent.
For example, it is assumed that the first keep-alive heart beat cycle determined in step 53 is 7 minutes, default threshold value is 1 minute, this
When through heartbeat algorithm calculating, the numerical value obtaining next the first keep-alive heart beat cycle is 9 minutes, then the two difference is 2 minutes,
Obviously, the first keep-alive heart beat cycle determined not is actual keep-alive heart beat cycle, at this time, it may be necessary to proceed actual keep-alive
The determination of heart beat cycle, with determine 9 minutes as detection cycle, the setting of change intervalometer, intervalometer is set to 9 points
Clock, that is, detection cycle have been changed to 9 minutes, heartbeat detection engine need continue to heartbeat detection service unit send heartbeat detection
Data, and receive the heartbeat detection data that heartbeat detection service unit is sent in regulation duration.And for example it is assumed that in step 53 really
The the first keep-alive heart beat cycle made is 25 minutes, and default threshold value is 1 minute, and in the after actual detection, obtaining
One keepalive period was 27 minutes, but in the keep-alive heart beat cycle of 27 minutes, the second transmission link was in not keep-alive, that is, receive
Less than heartbeat detection response data it is clear that the first keep-alive heart beat cycle determined is not actual keep-alive heart beat cycle, but
Now, heart beat cycle can not continue to increase, but needs to reduce the value of heart beat cycle further, adjusts in above-mentioned steps 52
X between main plotiValue progressively reduce.
Step 57, the actual keep-alive heart beat cycle determined is sent to heartbeat detection service unit by heartbeat detection engine,
And, heartbeat detection engine passes through interface module and the actual keep-alive heart beat cycle determined is synchronized to the of transmission services data
One transmission link, heartbeat detection service unit will be determined also by interface module after receiving actual keep-alive heart beat cycle
Actual keep-alive heart beat cycle be synchronized to the first transmission link of transmission services data.
It is preferred that after the actual keep-alive heart beat cycle determined is synchronized to the first transmission link, can also include:
Step 58, heartbeat detection engine unit disconnects the connection with heartbeat detection service unit, that is, be used for transmitting heart beating spy
Survey data and the second transmission link of heartbeat detection response data disconnects, the ip address of release the second transmission link.
Using embodiment of the present invention technique proposed herein scheme, will be used for transmitting the heart determining actual keep-alive heart beat cycle
Jump detection data and heartbeat detection response data separate traffic data transmission link runs, to the long data transmission link connecting
When carrying out keep-alive, by business datum with determine the heartbeat detection data of keep-alive heart beat cycle by different ip network transmissions, from
And during making heartbeat detection, the transmission of heartbeat detection data will not be disturbed by business datum, transmit heartbeat detection number
According to also will not disconnect with the transmission link of heartbeat detection response data such that it is able to preferably improve heartbeat detection result accurate
Property.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (13)
1. a kind of keepalive method of data transmission link is it is characterised in that include:
Pass through the first transmission link transmission services data between end side and network side；
Pass through the second transmission link between end side and network side and transmit heartbeat detection data and heartbeat detection response data, wherein
Described first transmission link and the second transmission link be end side and network side under identical communication network, based on internet protocol
The long connection that view ip network is set up, described first transmission link and the second transmission link use different transmission to control in network side
Agreement tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle；
According to described heartbeat detection data and heartbeat detection response data, determine that described first transmission link carries out growing connection keep-alive
Actual keep-alive heart beat cycle and be synchronized to the first transmission link；Including:
According to described heartbeat detection data and heartbeat detection response data, determine at least one first keep-alive heart beat cycle；
Statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines that described first transmission link carries out growing connection keep-alive
Actual keep-alive heart beat cycle.
2. the method for claim 1 is it is characterised in that carry out statistical to the first keep-alive heart beat cycle determined
Analysis, determines that described first transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive, comprising:
Statistical analysiss are carried out to the first keep-alive heart beat cycle determined, in the two neighboring first keep-alive heart beat cycle determined
Difference absolute value be less than preset first threshold value when, the time that will determine preceding first keep-alive heart beat cycle as first transmission
Link carries out growing the actual keep-alive heart beat cycle connecting keep-alive；Or
The the first keep-alive heart beat cycle determined is carried out with statistical analysiss, determines the keep-alive ensureing that the first transmission link is in keep-alive
Marginal value and the first transmission link are in the not keep-alive marginal value of not keep-alive, calculate the absolute value of the difference of the two, described absolutely
During to value less than default Second Threshold, using corresponding for described keep-alive marginal value the first keep-alive heart beat cycle as the first transmission link
Carry out growing the actual keep-alive heart beat cycle connecting keep-alive.
3. the method for claim 1 is it is characterised in that determine at least one first keep-alive heart beat cycle, comprising:
Determine apart from current point in time the last time first keep-alive heart beat cycle is added with step-length Dynamic gene, obtains
Value preset is as the first keep-alive heart beat cycle of transmission heartbeat detection data next time and heartbeat detection response data.
4. method as claimed in claim 3 is it is characterised in that described step-length Dynamic gene includes detection direction and step-length is big
It is little,
Determine at least one first keep-alive heart beat cycle using following formula:
ti=ti-1+f(si-1,ri)；
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission heart beating next time
Detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection direction, ri
It is step sizes, riDetermined by the interval product of regulation coefficient and adjustment, before detection direction determines, the interval value of adjustment
It is the first keep-alive heart beat cycle that the last time is determined, after detection direction determines, the interval value of adjustment is nearest one
The secondary data transmission link determined can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive first guarantor
The difference of heart beat cycle alive.
5. a kind of keep-alive device of data transmission link, this device is located at end side it is characterised in that including:
First connection management module, for passing through the first transmission link transmission services data and network side between；
Second connection management module, for passing through and network side between, the second transmission link transmits heartbeat detection data and heart beating is visited
Survey response data；
Heartbeat algorithm module, for according to described heartbeat detection data and heartbeat detection response data, determining described first transmission
Link carries out growing the actual keep-alive heart beat cycle connecting keep-alive；
Interface module, the actual keep-alive heart beat cycle for determining heartbeat algorithm module is synchronized to the first transmission link；
Wherein, described first transmission link and the second transmission link be end side and network side under identical communication network, base
The long connection set up in Internet Protocol ip network, described first transmission link and the second transmission link are in network side using different
Tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle；
Wherein, described heartbeat algorithm module, specifically for according to described heartbeat detection data and heartbeat detection response data, determining
At least one first keep-alive heart beat cycle；Statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines described first
Transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive.
6. device as claimed in claim 5 is it is characterised in that described heartbeat algorithm module, specifically for determining
One keep-alive heart beat cycle carries out statistical analysiss, little in the absolute value of the difference of the two neighboring first keep-alive heart beat cycle determined
When preset first threshold value, preceding for the time that determines the first keep-alive heart beat cycle is carried out growing connection guarantor as the first transmission link
The actual keep-alive heart beat cycle lived；Or statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines guarantee first
Transmission link is in the keep-alive marginal value of keep-alive and the first transmission link is in the not keep-alive marginal value of not keep-alive, calculates the two
The absolute value of difference, when described absolute value is less than default Second Threshold, by corresponding for the described keep-alive marginal value first keep-alive heart
Hop cycle carries out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.
7. device as claimed in claim 5 is it is characterised in that described heartbeat algorithm module, specifically for will apart from current when
Between the first keep-alive heart beat cycle of determining of point the last time is added with step-length Dynamic gene, the value preset obtaining was transmitted as next time
Heartbeat detection data and the first keep-alive heart beat cycle of heartbeat detection response data.
8. device as claimed in claim 7 is it is characterised in that described step-length Dynamic gene includes detection direction and step-length is big
Little, described heartbeat algorithm module specifically determines at least one first keep-alive heart beat cycle using following formula:
ti=ti-1+f(si-1,ri)；
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission heart beating next time
Detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection direction, ri
It is step sizes, riDetermined by the interval product of regulation coefficient and adjustment, before detection direction determines, the interval value of adjustment
It is the first keep-alive heart beat cycle that the last time is determined, after detection direction determines, the interval value of adjustment is nearest one
The secondary data transmission link determined can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive first guarantor
The difference of heart beat cycle alive.
9. a kind of keep-alive device of data transmission link, this device is located at network side it is characterised in that including:
First connection management module, for passing through the first transmission link transmission services data and end side between；
Second connection management module, transmits heartbeat detection data and heartbeat detection for passing through the second transmission link between end side
Response data；
Session management module, for conversating management to by the end side that the second transmission link connects；
Heart beat cycle statistical analysis module, described for according to described heartbeat detection data and heartbeat detection response data, determining
First transmission link carries out growing the actual keep-alive heart beat cycle connecting keep-alive；
Interface module, the actual keep-alive heart beat cycle for determining heart beat cycle statistical analysis module is synchronized to the first transmission
Link；
Wherein, described first transmission link and the second transmission link be end side and network side under identical communication network, base
The long connection set up in Internet Protocol ip network, described first transmission link and the second transmission link are in network side using different
Tcp port, described first transmission link carries out growing connection keep-alive using default keep-alive heart beat cycle；
Wherein said heart beat cycle statistical analysis module, specifically for according to described heartbeat detection data and heartbeat detection number of responses
According to determining at least one first keep-alive heart beat cycle；Statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines institute
State the first transmission link to carry out growing the actual keep-alive heart beat cycle connecting keep-alive.
10. device as claimed in claim 9 is it is characterised in that described heart beat cycle statistical analysis module, specifically for true
The the first keep-alive heart beat cycle made carries out statistical analysiss, in the difference of the two neighboring first keep-alive heart beat cycle determined
When absolute value is less than preset first threshold value, preceding for the time that determines the first keep-alive heart beat cycle is carried out as the first transmission link
The long actual keep-alive heart beat cycle connecting keep-alive；Or statistical analysiss are carried out to the first keep-alive heart beat cycle determined, determines
Ensure that the first transmission link is in the keep-alive marginal value of keep-alive and the first transmission link is in the not keep-alive marginal value of not keep-alive, meter
Calculate the absolute value of the difference of the two, when described absolute value is less than default Second Threshold, by corresponding for described keep-alive marginal value the
One keep-alive heart beat cycle carries out growing the actual keep-alive heart beat cycle connecting keep-alive as the first transmission link.
11. devices as claimed in claim 9 it is characterised in that described heart beat cycle statistical analysis module, will apart from current when
Between the first keep-alive heart beat cycle of determining of point the last time is added with step-length Dynamic gene, the value preset obtaining was transmitted as next time
Heartbeat detection data and the first keep-alive heart beat cycle of heartbeat detection response data.
12. devices as claimed in claim 11 are it is characterised in that described step-length Dynamic gene includes detection direction and step-length is big
Little, described heart beat cycle statistical analysis module specifically determines at least one first keep-alive heart beat cycle using following formula:
ti=ti-1+f(si-1,ri)；
Wherein, ti-1It is the first keep-alive heart beat cycle determined apart from current point in time the last time, tiIt is transmission heart beating next time
Detection data and the first keep-alive heart beat cycle of heartbeat detection response data, f is step-length Dynamic gene, si-1It is detection direction, ri
It is step sizes, riDetermined by the interval product of regulation coefficient and adjustment, before detection direction determines, the interval value of adjustment
It is the first keep-alive heart beat cycle that the last time is determined, after detection direction determines, the interval value of adjustment is nearest one
The secondary data transmission link determined can keep-alive the first keep-alive heart beat cycle data transmission link can not keep-alive first guarantor
The difference of heart beat cycle alive.
A kind of keep-alive system of 13. data transmission links is it is characterised in that including being arranged on the terminal of end side and being arranged on net
The server of network side, wherein:
Described terminal, including the keep-alive device of the arbitrary described data transmission link of claim 5～8；
Described server, including the keep-alive device of the arbitrary described data transmission link of claim 9～12.
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