CN106992889B - Multi-server switching method and system - Google Patents
Multi-server switching method and system Download PDFInfo
- Publication number
- CN106992889B CN106992889B CN201710254075.6A CN201710254075A CN106992889B CN 106992889 B CN106992889 B CN 106992889B CN 201710254075 A CN201710254075 A CN 201710254075A CN 106992889 B CN106992889 B CN 106992889B
- Authority
- CN
- China
- Prior art keywords
- server
- slave
- slave server
- group
- standby
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012790 confirmation Methods 0.000 claims description 23
- 230000002779 inactivation Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Hardware Redundancy (AREA)
Abstract
The application discloses a multi-server switching method, which comprises the following steps: when the slave server group detects that the original master server is inactivated, each slave server judges whether the slave server is a standby master server or not by using the received timestamp; when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms that one slave server is the standby master server in the slave server group in the order of the IP addresses. Therefore, according to the method and the system, under the condition that the original main server is inactivated, the auxiliary server group selects the auxiliary server serving as the standby main server by using the timestamp, and when the auxiliary server group cannot select the standby main server by using the timestamp, one auxiliary server is confirmed to be the standby main server in the auxiliary server group by using the IP address, so that the auxiliary server can smoothly replace the function of the auxiliary server to continue to operate after the original main server is inactivated, and reliable data service is provided for a user. In addition, the application also correspondingly discloses a multi-server switching system.
Description
Technical Field
The invention relates to the field of multi-server hot standby, in particular to a multi-server switching method and a multi-server switching system.
Background
With the rapid development of the internet (mobile internet), users increasingly rely on data services provided by servers, the demand for availability of data is increased, and services (data) provided by the servers need to be accessed more anytime and anywhere; in order to avoid the failure of the server and the failure of the user to acquire the service, a multi-machine hot standby scheme is adopted, and when the main server is inactivated, the slave server should be switched to the main server to continue to provide the service for the user.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for switching between multiple servers, so that a slave server can smoothly replace its function to continue operating after an original master server is deactivated. The specific scheme is as follows:
a multi-server switching method comprises the following steps:
when the slave server group detects that the original master server is inactivated, all the slave servers in the slave server group mutually transmit time stamps;
each slave server judges whether the slave server is a standby master server or not by using the received timestamp;
and when the slave server group cannot select the slave server serving as the standby master server by using the timestamp, the slave server group confirms one slave server in the slave server group as the standby master server according to the IP address sequence.
Preferably, after the slave server with the highest priority is changed to the standby master server, the method further includes:
the standby master server sends a switching notification to each slave server.
Preferably, the process of the slave server group confirming one slave server as a standby master server in the slave server group according to the IP address order includes:
and the slave servers in the slave server group judge the respective IP addresses, and the slave server with the highest priority is changed into the standby master server.
Preferably, after determining the respective IP addresses, the method further includes:
each slave server mutually transmits confirmation information, each slave server judges whether the priority of the slave server is the highest by using the confirmation information transmitted by each slave server, and if so, the slave server becomes the standby main server; wherein, the confirmation information comprises the IP address of the slave server.
Preferably, the method further comprises the following steps:
and when the standby main server detects that the original main server is recovered to be normal, sending the data during the inactivation period of the original main server to the original main server, and changing the standby main server into one slave server in the slave server group.
The invention also discloses a multi-server switching system, which comprises:
the sending module is used for sending a timestamp to each slave server in the slave server group when the slave server group detects that the original master server is inactivated;
the judging module is used for judging whether each slave server is a standby master server or not by utilizing the received time stamp;
a confirming module, configured to, when the slave server group cannot select a slave server as the standby master server using the timestamp, confirm, by the slave server group, that one slave server is the standby master server in the slave server group according to an IP address order.
Preferably, the method further comprises the following steps:
and the notification module is used for sending a switching notification to each slave server by the standby master server.
Preferably, the confirmation module is specifically configured to determine an IP address of each slave server in the slave server group, and change the slave server with the highest priority to the standby master server.
Preferably, the method further comprises the following steps:
the interaction module is used for sending confirmation information to each slave server, each slave server judges whether the priority of the slave server is the highest by using the confirmation information sent by each slave server, and if so, the slave server becomes the standby main server; wherein, the confirmation information comprises the IP address of the slave server.
Preferably, the method further comprises the following steps:
the data sending module is used for sending the data in the inactivation period of the original main server to the original main server when the standby main server detects that the original main server is recovered to be normal;
a switching module for the standby master server to become one of the slave servers in the slave server group.
In the invention, the multi-server switching method comprises the following steps: when the slave server group detects that the original master server is inactivated, all the slave servers in the slave server group mutually transmit time stamps; each slave server judges whether the slave server is a standby master server or not by using the received timestamp; when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms that one slave server is the standby master server in the slave server group in the order of the IP addresses. It can be seen that, in the present invention, when the original master server is deactivated, the slave servers transmit time stamps to each other, each slave server determines whether the priority of the slave server is highest by using the time recorded in the time stamp transmitted by the slave server, and if so, the slave server is used as a standby master server, and when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms one slave server as the standby master server by using the IP address sequence, thereby ensuring that the slave server can continue to operate smoothly after the original master server is deactivated instead of the function thereof, and providing reliable data service for users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of a multi-server switching method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-server switching system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a multi-server switching method, which is shown in figure 1 and comprises the following steps:
a multi-server handover method, as shown in fig. 1 and 2, the method includes:
step S11: when the slave server group detects that the original master server is inactivated, the slave servers in the slave server group transmit time stamps to each other.
Specifically, during normal operation, the slave server group can receive the live signal sent by the original master server, and when the original master server is inactivated, the slave server group cannot receive the live signal sent by the original master server within a predetermined time, the inactivation of the original master server can be known.
When the slave server group detects that the original master server is inactivated, each slave server in the slave server group transmits a time stamp to each slave server, and the time described in the time stamp may be the time when each slave server knows that the master server is inactivated, may be the time when each slave server transmits the time stamp, or may be a delay setting, which is not limited herein.
It can be understood that, because there are different delays in the communication between the servers, the slave servers may know that there is a difference in the time when the original master server is deactivated, and after each slave server knows that the original master server is deactivated, the response time may also be different due to the current operating state of the slave server, thereby affecting the sending time.
For example, there are 3 slave servers, which are respectively a first slave server, a second slave server and a third slave server, the first slave server knows that the time of the original master server is 8:30, the time of the transmission timestamp is 8:33, the second slave server knows that the time of the original master server is 8:31, the time of the transmission timestamp is 8:32, the third slave server knows that the time of the original master server is 8:33, and the time of the transmission timestamp is 8: 35; when the known time is taken as the right, the time in the time stamps of the first slave server, the second slave server and the third slave server is 8:30, 8:31 and 8:33 respectively; when the sending time is taken as the right, the time in the time stamps of the first slave server, the second slave server and the third slave server is 8:33, 8:32 and 8:35 respectively; when the delay is timing, the user sets the delay of the second slave server in advance, the time of the timestamp of the second slave server is delayed by 2 minutes, the second slave server takes the known time as punctuality, the time of the timestamp is 8:33, and the time of the timestamp is 8:34 when the sending time is punctuality.
Step S12: each slave server judges whether itself is a standby master server by using the received time stamp.
Specifically, each slave server receives a timestamp transmitted from another slave server, compares the time recorded in each timestamp with the time in the timestamp transmitted by itself, determines whether the time recorded in the timestamp transmitted by itself is the earliest time, and if so, can be switched as a standby master server to execute the function of the standby master server.
For example, there are 3 slave servers, namely a first slave server, a second slave server and a third slave server, respectively, and the time in the time stamps of the first slave server, the second slave server and the third slave server is 8:30, 8:31 and 8:33, respectively, then the time of the first slave server is the earliest, and therefore the first slave server acts as a standby master server.
Step S13: when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms that one slave server is the standby master server in the slave server group in the order of the IP addresses.
In practical application, the situation that the time of the timestamps of a plurality of slave servers is the same is avoided, and therefore, when the time stamps sent by the plurality of slave servers are the same, the slave servers in the slave server group judge the IP addresses of the slave servers, and the slave server with the highest priority is changed into a standby master server; each slave server has a unique IP address, each IP address is different, and therefore, a standby master server can be selected from the group of slave servers in order according to the size of the IP address, for example, the IP address of the first slave server is 192.168.255.0, the IP address of the second slave server is 192.168.255.13, and the IP address of the third slave server is 192.168.255.14, when the original master server is deactivated, the IP address of the first slave server having the IP address of 192.168.255.0 is smallest in descending order, and therefore the priority is highest, and the standby master server is selected and switched to perform the function of the original master server as the standby master server.
It can be seen that, in the present invention, when the original master server is deactivated, the slave servers transmit time stamps to each other, each slave server determines whether the priority of the slave server is highest by using the time recorded in the time stamp transmitted by the slave server, and if so, the slave server is used as a standby master server, and when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms one slave server as the standby master server by using the IP address sequence, thereby ensuring that the slave server can continue to operate smoothly after the original master server is deactivated instead of the function thereof, and providing reliable data service for users.
It should be noted that, if the original master server is deactivated and there are also slave servers in the slave server group deactivated, the order of switching from the slave server to the standby master server will be affected, especially if the slave server with the highest priority is deactivated, the next slave server needs to be switched to the standby master server, at this time, if there is no information interaction between the slave servers, it is difficult to complete the switching of the original master server, for this reason, when the slave servers mutually transmit confirmation information, each slave server uses the confirmation information transmitted by each slave server to determine whether its own priority is the highest, if so, it becomes the standby master server; wherein, the confirmation information comprises the IP address of the slave server.
Specifically, the slave server compares the received IP address included in the confirmation information sent by the rest of the slave servers with the own IP address, determines whether the priority of the slave server is highest, if so, the slave server becomes the standby master server, and if not, the slave server does not execute the operation.
The slave server can know whether the inactivated master server is the original master server or the standby master server converted from the slave server, so that the slave server judges whether the static allocation order of the slave server is the slave server with the highest priority compared with the inactivated original master server, for example, the IP addresses of a first slave server to a tenth slave server are 192.168.255.1 to 192.168.255.10, the slave server is switched from small to large according to the set IP address, the current master server is detected to be inactivated, the IP address of the current master server is 192.168.255.0, the priority of the first slave server with the IP address of 192.168.255.1 is the highest, and the first slave server is switched to the standby master server; if the IP address of the current master server is 192.168.255.1, the priority of the second slave server with the IP address of 192.168.255.2 is the highest, so that the second slave server is switched to the standby master server; and if the IP address of the current main server is 192.168.255.2, the third slave server is switched to be the standby main server.
Furthermore, if the slave servers do not send confirmation information, in order to prevent the situation that the slave server is not changed into the original master server due to the deactivation of the slave server after the slave server with the highest priority is changed into the standby master server, the slave servers send switching notification to the slave servers after the slave server with the highest priority is changed into the standby master server so that the slave servers can know the success of the switching.
For example, the second threshold value is 60 seconds, when each slave server detects that the original master server is inactive, each slave server confirms that the first slave server with the highest priority should be switched to the standby master server by using its own IP address, and after 60 seconds, each slave server still does not receive a switching notification to be transmitted from the first slave server to the standby master server, which indicates that the switching of the first slave server fails, and the second slave server with the highest priority performs switching, and after 60 seconds, if the switching notification is still not received, the switching is performed by the third slave server according to the IP address, and after the third slave server switches to the standby master server, the switching notification is transmitted within 60 seconds, so that each slave server which has not been switched knows that the switching operation is completed.
In practical applications, when the original master server is recovered to normal, the standby master server needs to be switched to the slave server again to recover the original master server, and the original master server continues the original operation.
Specifically, the standby main server sends all data during the operation period to the original main server, that is, all data before the original main server is recovered to be normal is sent to the original main server, so that the original main server can continue to process the data, the data is not lost or interrupted, the operation stability is ensured, and after the data is transmitted, the standby main server recovers the previous operation identity, becomes a slave server, and continues to work.
The embodiment of the present invention also discloses a multi-server switching system correspondingly, as shown in fig. 2, the system includes:
a sending module 11, configured to send a timestamp to each slave server in the slave server group when the slave server group detects that the original master server is inactivated;
a judging module 12, configured to judge, by each slave server, whether or not the slave server is a standby master server by using the received timestamp;
a confirming module 13, configured to, when the slave server group cannot select the slave server as the standby master server by using the timestamp, confirm that one slave server is the standby master server in the slave server group according to the IP address order.
It can be seen that, in the present invention, when the original master server is deactivated, the slave servers transmit time stamps to each other, each slave server determines whether the priority of the slave server is highest by using the time recorded in the time stamp transmitted by the slave server, and if so, the slave server is used as a standby master server, and when the slave server group cannot select the slave server as the standby master server by using the time stamp, the slave server group confirms one slave server as the standby master server by using the IP address sequence, thereby ensuring that the slave server can continue to operate smoothly after the original master server is deactivated instead of the function thereof, and providing reliable data service for users.
Specifically, the confirmation module 13 is specifically configured to determine the IP addresses of the slave servers in the server group, and change the slave server with the highest priority to the standby master server.
In the embodiment of the present invention, the device may further include a notification module, an interaction module, a data sending module 11, and a switching module; wherein,
and the notification module is used for sending a switching notification to each slave server by the standby master server.
The interaction module is used for sending confirmation information to each slave server, each slave server judges whether the priority of the slave server is the highest by using the confirmation information sent by each slave server, and if so, the slave server becomes a standby main server; wherein, the confirmation information comprises the IP address of the slave server.
The data sending module 11 is configured to send data during the period of inactivation of the original main server to the original main server when the standby main server detects that the original main server is recovered to normal;
and the switching module is used for changing the standby main server into one slave server in the slave server group.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method and system for switching among multiple servers provided by the invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A multi-server switching method, comprising:
when the slave server group detects that the original master server is inactivated, all the slave servers in the slave server group mutually transmit time stamps;
each slave server judges whether the slave server is a standby master server or not by using the received timestamp;
and when the slave server group cannot select the slave server serving as the standby master server by using the timestamp, the slave server group confirms one slave server in the slave server group as the standby master server according to the IP address sequence.
2. The method according to claim 1, further comprising, after the slave server with the highest priority is changed to the standby master server:
the standby master server sends a switching notification to each slave server.
3. The method according to claim 1, wherein the step of confirming a slave server as the standby master server in the slave server group according to the IP address order by the slave server group comprises:
and the slave servers in the slave server group judge the respective IP addresses, and the slave server with the highest priority is changed into the standby master server.
4. The method of claim 3, further comprising, after determining the respective IP addresses:
each slave server mutually transmits confirmation information, each slave server judges whether the priority of the slave server is the highest by using the confirmation information transmitted by each slave server, and if so, the slave server becomes the standby main server; wherein, the confirmation information comprises the IP address of the slave server.
5. The multi-server switching method according to any one of claims 1 to 4, further comprising:
and when the standby main server detects that the original main server is recovered to be normal, sending the data during the inactivation period of the original main server to the original main server, and changing the standby main server into one slave server in the slave server group.
6. A multi-server switching system, comprising:
the sending module is used for sending a timestamp to each slave server in the slave server group when the slave server group detects that the original master server is inactivated;
the judging module is used for judging whether each slave server is a standby master server or not by utilizing the received time stamp;
a confirming module, configured to, when the slave server group cannot select a slave server as the standby master server using the timestamp, confirm, by the slave server group, that one slave server is the standby master server in the slave server group according to an IP address order.
7. The multi-server switching system according to claim 6, further comprising:
and the notification module is used for sending a switching notification to each slave server by the standby master server.
8. The system according to claim 6, wherein the confirmation module is specifically configured to determine the IP addresses of the slave servers in the slave server group, and change the slave server with the highest priority to the backup master server.
9. The multi-server switching system according to claim 8, further comprising:
the interaction module is used for sending confirmation information to each slave server, each slave server judges whether the priority of the slave server is the highest by using the confirmation information sent by each slave server, and if so, the slave server becomes the standby main server; wherein, the confirmation information comprises the IP address of the slave server.
10. The multi-server switching system according to any one of claims 6 to 9, further comprising:
the data sending module is used for sending the data in the inactivation period of the original main server to the original main server when the standby main server detects that the original main server is recovered to be normal;
a switching module for the standby master server to become one of the slave servers in the slave server group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254075.6A CN106992889B (en) | 2017-04-18 | 2017-04-18 | Multi-server switching method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254075.6A CN106992889B (en) | 2017-04-18 | 2017-04-18 | Multi-server switching method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106992889A CN106992889A (en) | 2017-07-28 |
| CN106992889B true CN106992889B (en) | 2020-05-29 |
Family
ID=59415208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710254075.6A Active CN106992889B (en) | 2017-04-18 | 2017-04-18 | Multi-server switching method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992889B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547274A (en) * | 2019-01-28 | 2019-03-29 | 新华三技术有限公司 | A kind of enclosure board switching method, device and first network equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004519024A (en) * | 2000-09-08 | 2004-06-24 | ゴー アヘッド ソフトウェア インコーポレイテッド | System and method for managing a cluster containing multiple nodes |
| US7512679B2 (en) * | 2003-08-29 | 2009-03-31 | International Business Machines Corporation | Apparatus and method to select a captain from a plurality of control nodes |
| CN103067206B (en) * | 2012-12-28 | 2016-07-06 | 无锡博欧节能科技有限公司 | Internet of Things is across the distributed full-automatic heat standby server switched system of machine room |
-
2017
- 2017-04-18 CN CN201710254075.6A patent/CN106992889B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106992889A (en) | 2017-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106487578B (en) | Error recovery method, and Internet of things system and charging system applying same | |
| US20090201936A1 (en) | Time synchronizing device and process and associated products | |
| CN102123024A (en) | Method, system and device for switching and selecting clock source equipment | |
| US9596313B2 (en) | Method, terminal, cache server and system for updating webpage data | |
| WO2014166265A1 (en) | Method, terminal, cache server and system for updating webpage data | |
| CN101729426B (en) | Method and system for quickly switching between master device and standby device of virtual router redundancy protocol (VRRP) | |
| CN115349119A (en) | Method and apparatus for enhanced 5GC recovery when deploying a Network Function (NF) set in a network | |
| CN103916226A (en) | Redundant backup method based on embedded equipment | |
| CN111083049A (en) | User table item recovery method and device, electronic equipment and storage medium | |
| CN102761428A (en) | Server system and server switching method | |
| JP5039975B2 (en) | Gateway device | |
| CN106992889B (en) | Multi-server switching method and system | |
| US9706440B2 (en) | Mobile communication system, call processing node, and communication control method | |
| CN109274763B (en) | Information synchronization method and dual-computer hot standby equipment | |
| US9912782B2 (en) | Method and apparatus for recovery in a communication system employing redundancy | |
| EP2774323B1 (en) | Method, communication system and non-transitory computer readable medium for optimizing network performance after a temporary loss of connection | |
| CN106992890B (en) | Multi-server switching method and system | |
| US7339886B2 (en) | System and method for synchronizing SGSNs and a GGSN | |
| CN107819591B (en) | Data synchronization method, device, system and network equipment | |
| CN107104831B (en) | Multi-server switching method and system | |
| CN107104830B (en) | Multi-server switching method and system | |
| CN105049264A (en) | Data processing method and server side | |
| CN108667944B (en) | DHCP configuration method and DHCP client | |
| CN113163029B (en) | Network session account deployment method, device, terminal, server and storage medium | |
| CN110086862B (en) | Identification distribution method, device, equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |