CN108183762B - The method for synchronizing time of RapidIO network system and RapidIO network system - Google Patents
The method for synchronizing time of RapidIO network system and RapidIO network system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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Abstract
The present invention provides the method for synchronizing time of a kind of RapidIO network system and RapidIO network system；Wherein, which includes switching equipment and endpoint device, at least one endpoint device in endpoint device is connected with time service server；The endpoint device connecting with time service server sends multicast event command character under the triggering of time service server, and current temporal information is obtained to time service server, with broadcast mode transmission time information；Other endpoint devices adjust local clock according to the first time of multicast event command character, the second time for receiving temporal information and temporal information is received, so that local clock and time service server sync.The present invention is by connecting time service server in an endpoint device in systems, and each endpoint device time synchronization in network is made by the temporal information that multicast event command character and the time service server provide, which need not change RapidIO bottom-layer network structure, realize simple and reliable performance.
Description
Technical field
The present invention relates to RapidIO technical fields, more particularly, to a kind of RapidIO network system and RapidIO network
The method for synchronizing time of system.
Background technique
RapidIO is the distributed network of a kind of point-to-point connection realized with packet switch, with its high bandwidth, low delay and
The advantages of high reliability, provides good solution for the communication of high performance embedded system interconnected.At present
RapidIO obtains more and more extensive in embedded system, the mobile communication base station 3G and 4G, high performance digital signal processing system
Application, network size is also increasing.More and more common with network application, network system needs keeping net on a large scale
The time synchronization of network node and time are accurate.
There are many Time Synchronization Mechanisms in existing network, and such as in carrier class SDH/Sonet network, whole network is set
It is calculated as synchronizing network, stratum-3 clock grade is set, makes the physical layer of each network node that can follow master clock (when GPS time service
Clock), and then realize that the clock of whole network is synchronous；For another example the Network Time Protocol NTP or IEEE1588 used in the internet
Agreement formulates several clock source servers on network, generates clock synchronization request message, server response clock by client
Synchronous response message sends and receives the time by testing the two message come the time deviation both assessed, obtains relatively
Accurate clock is synchronous.Needed in aforesaid way, in synchronizing network each network node from physical layer realize clock recovery with
With realizing that difficulty is big, at high cost, and disagree with speciality that RapidIO is asynchronous network.And Network Time Protocol design object be because
Special net and computer, design focal point are the reliability and synchronization accuracy of agreement, and protocol realization is complex, and not can be used directly
Onto RapidIO network.
In conclusion for the mechanism for realizing that each node time of network is synchronous is lacked in above-mentioned existing RapidIO network
The problem of, not yet put forward effective solutions.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of RapidIO network system and RapidIO network system when
Between synchronous method so that each endpoint device time synchronization in RapidIO network.
In a first aspect, the embodiment of the invention provides a kind of RapidIO network system, system includes switching equipment and exchange
The endpoint device of equipment connection, at least one endpoint device in endpoint device are connected with time service server；With time service server
The endpoint device of connection is used to send multicast event command character under the triggering of time service server, sends multicast event control every time
Fu Shi obtains current temporal information to time service server, and according to the synchronous local clock of temporal information, is sent with broadcast mode
Temporal information；Other endpoint devices in system are for recording first time, the when of receiving for receiving multicast event command character
Between information the second time, according at the first time, the second time and temporal information adjust local clock so that local clock with award
When server sync.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
It states other endpoint devices to be also used to record first time and the second time by local clock, and calculates correction time T4=T2-
T1+T3, will be loaded into local clock correction time；Wherein, T1For at the first time；T2For the second time；T3For temporal information.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein on
Stating time service server includes GPS time service server, and the endpoint device connecting with time service server passes through serial ports and GPS time service service
Device connection.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein on
Time service server is stated for sending time service trigger signal to the endpoint device connected, time service trigger signal includes pulse per second (PPS) letter
Number, multicast event command character is sent to trigger connected endpoint device.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein on
The position payload that the endpoint device connecting with time service server is also used to for temporal information being added to message frame is stated, by message
Frame is sent to switching equipment in the form broadcasted.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein above-mentioned switching equipment for receive the message frame for carrying temporal information when, by message frame with
The form of multicast is sent to corresponding endpoint device.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein on
It states between endpoint device and switching equipment and two-by-two between switching equipment by meeting the serdes of RapidIO network protocol
Link connection.
Second aspect, the embodiment of the invention provides a kind of method for synchronizing time of RapidIO network system, this method is answered
For above system；This method comprises: the endpoint device being connect with time service server sent under the triggering of time service server it is more
Broadcast event control symbol, when sending multicast event command character every time, obtain current temporal information to time service server, and according to when
Between synchronizing information local clock, with broadcast mode transmission time information；Other endpoint devices record in system receives multicast
The first time of event control symbol, the second time for receiving temporal information, according to first time, the second time and temporal information
Local clock is adjusted, so that local clock and time service server sync.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
State method further include: other endpoint devices are by local clock record first time and the second time, and calculate correction time
T4=T2-T1+T3, will be loaded into local clock correction time；Wherein, T1For at the first time；T2For the second time；T3For time letter
Breath.
In conjunction with second aspect, the embodiment of the invention provides second of possible embodiments of second aspect, wherein on
State method further include: the endpoint device connecting with time service server is also used to for temporal information being added to the payload of message frame
Position, the form that message frame is broadcasted are sent to switching equipment.
The embodiment of the present invention bring it is following the utility model has the advantages that
The method for synchronizing time of a kind of RapidIO network system and RapidIO network system provided in an embodiment of the present invention,
At least one endpoint device in its endpoint device is connected with time service server；The endpoint device connecting with time service server is being awarded
When server triggering under send multicast event command character, and current temporal information is obtained to time service server, with broadcaster
Formula sends the temporal information；Other endpoint devices in system are according to first time, the reception for receiving multicast event command character
Local clock is adjusted to the second time of temporal information and above-mentioned temporal information, so that local clock and time service server sync；
In which, by connecting time service server in an endpoint device in systems, and by multicast event command character and it is somebody's turn to do
The temporal information that time service server provides makes each endpoint device time synchronization, which in network that need not change RapidIO bottom
Network structure realizes simple and reliable performance.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the first RapidIO network system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of second of RapidIO network system provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the method for synchronizing time of the first RapidIO network system provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the method for synchronizing time of second of RapidIO network system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The problem of in view of lacking the mechanism for realizing each node time synchronization of network in existing RapidIO network, this hair
Bright embodiment provides the method for synchronizing time of a kind of RapidIO network system and RapidIO network system；The technology can answer
For environment such as embedded system, digital information processing systems, in RapidIO network in the time synchronization process of each node；Especially
It can be applied under the special applications scene more demanding to time synchronization, for example, the DVR (Digital of video monitoring system
Video Recorder, hard disk video recorder) in system.The technology can by relevant software or hardware realization, below by
Embodiment is described.
Embodiment one:
The structural schematic diagram of the first RapidIO network system shown in Figure 1；The system includes switching equipment and friendship
The endpoint device of exchange device connection, at least one endpoint device in endpoint device are connected with time service server；
In Fig. 1, it is illustrated so that RapidIO network system includes a switching equipment and three end point devices as an example；It hands over
Exchange device 10 is connect with endpoint device 11, endpoint device 12 and endpoint device 13 respectively；Wherein, endpoint device 13 is connected with time service
Server 14；In actual implementation, according to the network size and practical application scene of RapidIO network system, include in system
Switching equipment and endpoint device quantity and connection relationship may include it is a variety of, the present embodiment is it is not limited here.
The endpoint device connecting with time service server is used to send multicast event command character under the triggering of time service server,
When sending multicast event command character every time, current temporal information is obtained to time service server, and synchronous originally according to temporal information
Ground clock, with broadcast mode transmission time information；Other endpoint devices in system receive multicast event control for recording
The first time of symbol, the second time for receiving temporal information adjust local according to first time, the second time and temporal information
Clock, so that local clock and time service server sync.
In RapidIO network protocol, multicast event command character has highest priority, transmission in a network
When, it can also be inserted into data frame, therefore, transmission delay of the multicast event command character in entire RapidIO network can
To ignore.While being equivalent to the endpoint device transmission multicast event command character connecting with time service server, other endpoint devices
It has been received by the multicast event command character.Further, since RapidIO network has the characteristics that highly-reliable transmission, when one
After end point device sends above-mentioned multicast event command character and temporal information, it is ensured that other endpoint devices can connect in network
It receives.
Specifically, according to above-mentioned first time and the second time, the transmission of above-mentioned temporal information in a network can be obtained
Delay；Further according to the transmission delay and the temporal information, local clock is adjusted, time and the time service of local clock can be realized
The time synchronization of server.
A kind of RapidIO network system provided in an embodiment of the present invention, at least one endpoint device in endpoint device
It is connected with time service server；The endpoint device connecting with time service server sends multicast event control under the triggering of time service server
System symbol, and current temporal information is obtained to time service server, which is sent with broadcast mode；Other ends in system
Point device is believed according to the first time of multicast event command character, the second time for receiving temporal information and above-mentioned time is received
Breath adjustment local clock, so that local clock and time service server sync；In which, set by an endpoint in systems
Standby upper connection time service server, and made in network respectively by the temporal information that multicast event command character and the time service server provide
Endpoint device time synchronization, which need not change RapidIO bottom-layer network structure, realize simple and reliable performance.
Embodiment two:
The structural schematic diagram of second of RapidIO network system shown in Figure 2；The system provides in example 1
RapidIO network system on the basis of realize；The system includes the endpoint device that switching equipment is connected with switching equipment, endpoint
At least one endpoint device in equipment is connected with time service server；
The time service server includes GPS (Global Positioning System, global positioning system) time service service
Device, the endpoint device connecting with time service server are connect by serial ports with GPS time service server.In Fig. 2, with RapidIO network
System for three SW (Switch, switching equipment) He Sitai EP (Endpoint, endpoint device) equipment including being illustrated；Its
In, SW1, SW2 and SW3 are connected two-by-two；EP1 is connect with SW1, and EP2 and EP3 are connect with SW3；EP4 is connect with SW2；EP4 is connected with
GPS time service server；It is appreciated that the GPS time service server can also be connected in other endpoint devices such as EP1.It is above-mentioned to award
When server can also be other kinds of time service server, for example, NTP (Network Time Protocol, network time
Agreement) server etc..
Above-mentioned time service server is used to send time service trigger signal to the endpoint device connected, and time service trigger signal includes
Second pulse signal sends multicast event command character to trigger connected endpoint device.In general, GPS time service server is sent out to EP4
Second pulse signal (being referred to as PPS signal) and all the way rs 232 serial interface signal all the way are sent, which is used to transmit the above-mentioned time
Information.Specifically, 1PPS signal is the signal per second for sending a pulse；Above-mentioned second pulse signal and temporal information are passed to above-mentioned
In the CPU of EP4.
Further, the endpoint device in above system and pass through between switching equipment and two-by-two between switching equipment
Meet the serdes link connection of RapidIO network protocol.The serdes be SERializer (serializer) and
The abbreviation of DESerializer (deserializer)；Serdes be a kind of time division multiplexing (TDM), point-to-point (P2P) it is serial logical
Multi-path low speed parallel signal is converted into high-speed serial signals in transmitting terminal, by transmission media (for example, optical cable by letter technology
Or copper wire etc.) transmission after, the high-speed serial signals are re-converted into speed parallel signals in receiving end.This point pair of serdes
The serial communication technology of point can make full use of the channel capacity of transmission media, reduce required transmission channel and device pin number
Mesh, to substantially reduce communications cost.
When a system is powered up, by the enumeration process of RapidIO, the host CPU of EP can obtain system topology in network,
Complete the relevant configuration of the routing table and multicast event on each SW.After the completion of configuration, when SW Single port receives multicast event control
When system symbol, which can be forwarded on all of the port other than the port.Hereafter, EP4 starts clock time service process.
After the completion of time service server initiation, whenever the rising edge for detecting 1PPS signal, EP4 is issued more than one
Broadcast event control symbol.Meanwhile the endpoint device (for example, EP4 in Fig. 2) connecting with time service server is also used to connect by serial ports
Temporal information is added to the position payload of message frame (being equivalent to message frame) by the temporal information of server when receiving and grant,
Message frame is sent to switching equipment in the form broadcasted.
When certain port of SW receives multicast event command character, can send the multicast event command character in addition to the port
Other ports on, other all ports EP on such RapidIO network can be received by multicast event command character.Above-mentioned friendship
Message frame for being sent to corresponding endpoint when receiving the message frame for carrying temporal information by exchange device in the form of multicast
Equipment.Specifically, when certain port of SW receives the message frame for carrying temporal information, according to its D_ID (purpose in frame head
Address) multicast checking result multicast in other EP equipment.
Above-mentioned other endpoint devices are also used to record by local clock and correct at the first time with the second time, and calculating
Time T4=T2-T1+T3, will be loaded into local clock correction time；Wherein, T1For at the first time；T2For the second time；T3For when
Between information.Specifically, a local zone time axis counter (being equivalent to above-mentioned local clock) is safeguarded in each EP equipment, when it
When his EP equipment receives multicast event command character, t1 at the time of record receives the multicast event command character under local clock, etc.
When receiving the message frame for carrying temporal information, record moment t2 is recorded, and from the payload extracting time information of the frame
t3.The value of t4 is calculated further according to formula t4=t2-t1+t3, then t4 is loaded into local time shaft counter, so that it may real
Existing local zone time axis and time service server sync.
Embodiment three:
Corresponding to the above system embodiment, the method for synchronizing time of the first RapidIO network system shown in Figure 3
Flow chart, this method is applied to the RapidIO network system provided in above-described embodiment one or embodiment two；This method includes
Following steps:
Step S302, the endpoint device connecting with time service server send multicast event control under the triggering of time service server
System symbol obtains current temporal information to time service server, and same according to temporal information when sending multicast event command character every time
Local clock is walked, with broadcast mode transmission time information；
Step S304, other endpoint devices record in system receive the first time of multicast event command character, receive
To the second time of temporal information, local clock is adjusted according to first time, the second time and temporal information, so that local clock
With time service server sync.
Further, the above method further include: when other endpoint devices are by local clock record first time and second
Between, and calculate correction time T4=T2-T1+T3, will be loaded into local clock correction time；Wherein, T1For at the first time；T2For
Second time；T3For temporal information.
Further, the above method further include: the endpoint device connecting with time service server is also used to add temporal information
The position payload of message frame is added to, the form that message frame is broadcasted is sent to switching equipment.
The method for synchronizing time of RapidIO network system provided in an embodiment of the present invention, and it is provided by the above embodiment
RapidIO network system technical characteristic having the same reaches identical technology effect so also can solve identical technical problem
Fruit.
The flow chart of the method for synchronizing time of second of RapidIO network system shown in Figure 4, this method include such as
Lower step:
Step S402, GPS time service server initiation；
Step S404, judges whether EP4 detects the rising edge of 1PPS signal；If so, executing step S406；If
It is no, execute step S404；
Step S406, EP4 send multicast event command character；
Step S408 sends the message frame for carrying temporal information；
Step S410, judges whether time synchronization terminates；If so, terminating；If not, executing step S404.
The method for synchronizing time of RapidIO network system and RapidIO network system provided in an embodiment of the present invention proposes
A kind of multicast command character using RapidIO, cooperates the multicast message of logical layer, integrally ties not influencing RapidIO network
It is real by PPS+TOD (pulse per second (PPS)+day time) interface of GPS time service on being carried to RapidIO network protocol under the premise of structure
Each node device realizes time synchronization in existing RapidIO network.
The embodiment of the present invention utilizes the multicast thing in RapidIO agreement on the basis of not changing RapidIO bottom-layer network
Part command character carries 1PPS second pulse signal, carries temporal information using multicast message frame, makes all EP endpoints on network
Local zone time axis can be synchronous with the holding of time service server.Because the multicast event command character of RapidIO has highest priority,
It can also be inserted into data frame when sending, so its transmission delay in entire RapidIO network can guarantee.
RapidIO network has the characteristics of highly-reliable transmission, it is ensured that multicast event command character and carries temporal information in network
Multicast message frame can be received by other EP endpoints correspondingly.
The method for synchronizing time of RapidIO network system and RapidIO network system provided in an embodiment of the present invention utilizes
The 1PPS signal of the multicast event command character carrying GPS time service server of RapidIO；Utilize the multicast message frame of RapidIO
Carry the temporal information of GPS time service server；Pass through the multicast event command character received at the end EP and carries temporal information
Multicast message frame keeps local zone time axis synchronous with the holding of time service server.This method, which has, realizes simple and flexible, and clock is same
It is high to walk precision, the low advantage of networking cost.In conclusion the present invention can dispose on common RapidIO network, has and realize
Simply, reliable performance, advantage low in cost.
The method for synchronizing time of RapidIO network system and RapidIO network system provided by the embodiment of the present invention
Computer program product, the computer readable storage medium including storing program code, the instruction that said program code includes
It can be used for executing previous methods method as described in the examples, specific implementation can be found in embodiment of the method, and details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. a kind of RapidIO network system, which is characterized in that connected the system comprises switching equipment with the switching equipment
Endpoint device, at least one endpoint device in the endpoint device are connected with time service server；
The endpoint device connecting with the time service server is used to send multicast event control under the triggering of the time service server
System symbol, when sending the multicast event command character every time, Xiang Suoshu time service server obtains current temporal information, and according to institute
The synchronous local clock of temporal information is stated, the temporal information is sent with broadcast mode；
Other endpoint devices in the system receive the first time of the multicast event command character, receive for recording
Second time of the temporal information adjusts local clock according to the first time, the second time and the temporal information, with
Make the local clock and the time service server sync；
Other endpoint devices are also used to record the first time and second time by the local clock, and
Calculate correction time T4=T2-T1+T3, the correction time is loaded into the local clock；Wherein, T1When being described first
Between；T2For second time；T3For the temporal information.
2. system according to claim 1, which is characterized in that the time service server includes GPS time service server, with institute
The endpoint device for stating the connection of time service server is connect by serial ports with the GPS time service server.
3. system according to claim 1, which is characterized in that the time service server is used for the endpoint device connected
Time service trigger signal is sent, the time service trigger signal includes second pulse signal, more with the endpoint device transmission for triggering connected
Broadcast event control symbol.
4. system according to claim 1, which is characterized in that the endpoint device connecting with the time service server is also used to
The temporal information is added to the position payload of message frame, the form that the message frame is broadcasted is sent to the friendship
Exchange device.
5. system according to claim 4, which is characterized in that the switching equipment carries the time for receiving
When the message frame of information, the message frame is sent to corresponding endpoint device in the form of multicast.
6. system according to claim 1, which is characterized in that between the endpoint device and the switching equipment and
Two-by-two by meeting the serdes link connection of RapidIO network protocol between the switching equipment.
7. a kind of method for synchronizing time of RapidIO network system, which is characterized in that the method is applied to claim 1-6
System described in any one；The described method includes:
The endpoint device connecting with the time service server sends multicast event command character under the triggering of the time service server,
When sending the multicast event command character every time, Xiang Suoshu time service server obtains current temporal information, and according to it is described when
Between synchronizing information local clock, the temporal information is sent with broadcast mode；
Other endpoint devices record in the system receive the first time of the multicast event command character, receive it is described
Second time of temporal information adjusts local clock according to the first time, the second time and the temporal information, so that institute
State local clock and the time service server sync；
The method also includes: other endpoint devices record the first time and described second by the local clock
Time, and calculate correction time T4=T2-T1+T3, the correction time is loaded into the local clock；Wherein, T1For institute
It states at the first time；T2For second time；T3For the temporal information.
8. the method according to the description of claim 7 is characterized in that the method also includes: connect with the time service server
Endpoint device be also used to for the temporal information being added to the position payload of message frame, the message frame is broadcasted
Form is sent to the switching equipment.
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| CN111367849A (en) * | 2020-01-02 | 2020-07-03 | 全球能源互联网研究院有限公司 | Method and system for synchronizing data of high-speed serial bus |
| CN114244466B (en) * | 2021-12-29 | 2024-01-19 | 中国航空工业集团公司西安航空计算技术研究所 | Distributed time synchronization method and system for rapidIO network system |
| CN116032731B (en) * | 2023-03-28 | 2023-08-18 | 井芯微电子技术(天津)有限公司 | Method and device for realizing hot backup of RapidIO network system |
| CN116232864B (en) * | 2023-05-05 | 2023-07-14 | 井芯微电子技术(天津)有限公司 | Multi-machine hot backup method and system for network system based on event controller |
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