CN108881435B - Real-time clock providing method, server, home appliance, system, and medium - Google Patents
Real-time clock providing method, server, home appliance, system, and medium Download PDFInfo
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- CN108881435B CN108881435B CN201810626593.0A CN201810626593A CN108881435B CN 108881435 B CN108881435 B CN 108881435B CN 201810626593 A CN201810626593 A CN 201810626593A CN 108881435 B CN108881435 B CN 108881435B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements
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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
- H04J3/0644—External master-clock
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
The invention discloses a real-time clock providing method of a server, wherein the server comprises virtual equipment and actual equipment, and the real-time clock providing method of the server comprises the following steps: when receiving requests for acquiring time sent by a plurality of WiFi modules, the server selects corresponding virtual equipment according to a preset algorithm to establish connection with the plurality of WiFi modules respectively; when the connection between the virtual equipment and the WiFi module is completed, the virtual equipment sends a time acquisition request to the actual equipment; and the actual equipment returns a real-time clock to the WiFi module through the virtual equipment according to the request for acquiring the time. The invention also discloses a server, household electrical appliance equipment, a providing system of the real-time clock and a computer readable storage medium. The invention can solve the technical problem that when a large number of WiFi modules simultaneously acquire real-time clocks from the server, the server is prevented from being paralyzed.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for providing a real-time clock of a server, a home appliance, a system for providing a real-time clock, and a computer-readable storage medium.
Background
When the WiFi module of the existing home device obtains the real-time clock from the server, the WiFi module is generally obtained directly from the server. If a large number of WiFi modules obtain the real-time clock from the server at the same time (for example, at the moment of re-supplying power after a large-scale power outage), when a large number of WiFi modules obtain the real-time clock directly through the real-time device of the server at the same time, a server may be broken down.
Disclosure of Invention
The invention mainly aims to provide a real-time clock providing method of a server, the server, household electrical appliances, a real-time clock providing system and a computer readable storage medium, and aims to solve the technical problem that when a large number of WiFi modules simultaneously acquire real-time clocks from the server, the server is prevented from being paralyzed.
In order to achieve the above object, the present invention provides a real-time clock providing method for a server, where the server includes a virtual device and an actual device, and the real-time clock providing method for the server includes the following steps:
when the server receives requests for acquiring time sent by a plurality of WiFi modules, the corresponding virtual equipment is selected according to a preset algorithm to be respectively connected with the WiFi modules;
when the connection between the virtual equipment and the WiFi module is completed, the virtual equipment sends a time acquisition request to the actual equipment;
and the actual equipment returns a real-time clock to the WiFi module through the virtual equipment according to the request for acquiring the time.
Preferably, the step of the real-time clock being returned to the WiFi module by the virtual device according to the request for obtaining time further includes:
acquiring the online time of the household appliance;
and carrying out priority sequencing on the virtual equipment according to the online time of the household electrical appliance equipment.
Preferably, the step of the real-time clock being returned to the WiFi module by the virtual device according to the request for obtaining time further includes:
acquiring a quality parameter indicating the communication quality between the virtual equipment and the WiFi module;
and carrying out priority sequencing on the virtual equipment according to the quality parameters.
Preferably, the quality parameters include: one or more of connection time, connection times and packet loss rate.
Preferably, the step of returning, by the actual device, the real-time clock to the WiFi module through the virtual device according to the request for obtaining the time includes:
when the actual equipment receives the request of acquiring the time, acquiring the virtual equipment with the highest priority;
and returning a real-time clock to the WiFi module through the virtual equipment with the highest priority.
Preferably, the time format provided by the real-time clock is json format.
Preferably, the number of virtual devices is greater than or equal to the number of actual devices.
To achieve the above object, the present invention further provides a server, which includes a processor, a memory, and a real-time clock providing program of the server stored on the memory and operable on the processor, wherein the real-time clock providing program of the server, when executed by the processor, implements the steps of the real-time clock providing method of the server as described above.
In order to achieve the above object, the present invention further provides a home appliance device, where the home appliance device has a WIFI module, and the WIFI module is configured to send a request for obtaining time to a server, and receive a real-time clock returned by an actual device of the server through a virtual device when connection between the virtual device of the server and the WIFI module is completed.
Preferably, the household appliance is an air conditioner.
In order to achieve the above object, the present invention further provides a system for providing a real-time clock, where the system for providing a real-time clock includes the server as described above, and the household appliance as described above.
To achieve the above object, the present invention also provides a computer-readable storage medium storing a real-time clock providing program of a server, which when executed by a processor, implements the steps of the real-time clock providing method of the server as described above.
According to the real-time clock providing method of the server, the household appliance equipment, the real-time clock providing system and the computer readable storage medium, when the server receives the time obtaining requests sent by the WiFi modules, the corresponding virtual equipment is selected according to a preset algorithm to be respectively connected with the WiFi modules, then when the connection between the virtual equipment and the WiFi modules is completed, the virtual equipment sends the time obtaining requests to the actual equipment, and finally the actual equipment returns the real-time clock to the WiFi modules through the virtual equipment according to the time obtaining requests. Therefore, when a large number of WiFi modules acquire the real-time clock from the server at the same time, the server can be prevented from being paralyzed.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of a server according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a real-time clock providing method of a server according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a real-time clock providing method of a server according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a real-time clock providing method of a server according to a third embodiment of the present invention;
FIG. 5 is a functional block diagram of a real-time clock providing system according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows:
when receiving requests for acquiring time sent by a plurality of WiFi modules, the server selects corresponding virtual equipment according to a preset algorithm to establish connection with the plurality of WiFi modules respectively;
when the connection between the virtual equipment and the WiFi module is completed, the virtual equipment sends a time acquisition request to the actual equipment;
and the actual equipment returns a real-time clock to the WiFi module through the virtual equipment according to the request for acquiring the time.
Since the WiFi module of the existing home device is usually directly obtained from the server when obtaining the real-time clock from the server. If a large number of WiFi modules acquire the real-time clock from the server at the same time (for example, a large-scale power failure), the server may be disabled when a large number of WiFi modules acquire the real-time clock directly through the real-time device of the server.
The invention provides a solution, when a server receives a time acquisition request sent by a plurality of WiFi modules, corresponding virtual equipment is selected according to a preset algorithm to respectively establish connection with the plurality of WiFi modules, then when the connection between the virtual equipment and the WiFi modules is completed, the virtual equipment sends the time acquisition request to actual equipment, and finally the actual equipment returns a real-time clock to the WiFi modules through the virtual equipment according to the time acquisition request. Therefore, when a large number of WiFi modules acquire the real-time clock from the server at the same time, the server can be prevented from being paralyzed.
As shown in fig. 1, an embodiment of the present invention relates to a server, where the server may include: a processor 1001, such as a CPU, a user interface 1002, a memory 1003, and a communication bus 1004. Wherein a communication bus 1004 is used to enable connective communication between these components. The user interface 1002 may include a Display screen (Display), an input unit. The memory 1003 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the server architecture shown in FIG. 1 is not meant to be limiting, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a real-time clock providing program of a server may be included in the memory 1003 as a kind of computer storage medium; and the processor 1001 may be configured to call the real-time clock providing program of the server stored in the memory 1002 and perform the following operations:
when the server receives requests for acquiring time sent by a plurality of WiFi modules, the corresponding virtual equipment is selected according to a preset algorithm to be respectively connected with the WiFi modules;
when the connection between the virtual equipment and the WiFi module is completed, the virtual equipment sends a time acquisition request to the actual equipment;
and the actual equipment returns a real-time clock to the WiFi module through the virtual equipment according to the request for acquiring the time.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
acquiring the online time of the household appliance;
and carrying out priority sequencing on the virtual equipment according to the online time of the household electrical appliance equipment.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
acquiring a quality parameter indicating the communication quality between the virtual equipment and the WiFi module;
and carrying out priority sequencing on the virtual equipment according to the quality parameters.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
the quality parameters include: one or more of connection time, connection times and packet loss rate.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
when the actual equipment receives the request of acquiring the time, acquiring the virtual equipment with the highest priority;
and returning a real-time clock to the WiFi module through the virtual equipment with the highest priority.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
the time format provided by the real-time clock is json format.
Further, the processor 1001 may be configured to call a real-time clock providing program of the server stored in the memory 1002, and perform the following operations:
the number of virtual devices is greater than or equal to the number of actual devices.
Based on the hardware architecture, the embodiment of the real-time clock providing method of the server is provided.
Referring to fig. 2, fig. 2 is a first embodiment of a real-time clock providing method of a server according to the present invention, the real-time clock providing method of the server includes the following steps:
step S1, when the server receives the time acquisition requests sent by the WiFi modules, selecting corresponding virtual equipment according to a preset algorithm to respectively establish connection with the WiFi modules;
in this embodiment, the server includes a virtual device and an actual device, and the virtual device may be in communication connection with the WiFi module and the actual device, respectively. Specifically, the server includes a plurality of virtual devices and a plurality of actual devices. Preferably, the number of the virtual devices is greater than or equal to the number of the actual devices, for example, the number of the virtual devices is 100, and the number of the actual devices is 20, so that the virtual devices are equivalent to the virtual middle layer added at the server end, which can allow 100 WiFi modules to be connected simultaneously externally, and can internally connect 20 actual devices, so that the number of the WiFi modules that can be connected is not limited by the actual devices, thereby meeting the requirement that a plurality of WiFi modules access the server simultaneously.
In this embodiment, the WiFi modules are built in household appliances such as an air conditioner, and when a large-scale power failure occurs, a large number of WiFi modules of the household appliances acquire a real-time clock from the server at the same time, and when the server receives a plurality of requests for acquiring time sent by the WiFi modules, the server may select corresponding virtual appliances according to a preset algorithm to be respectively connected with the plurality of WiFi modules, that is, each WiFi module may correspond to one of the plurality of virtual appliances to be connected. Wherein, the preset algorithm is preferably a random algorithm. A virtual device is randomly selected through a random algorithm to be connected with the WiFi module, so that the situation that a plurality of WiFi modules are connected to the same server at the same time is avoided.
Step S2, when the connection between the virtual device and the WiFi module is completed, the virtual device sends a time acquisition request to the actual device;
in this embodiment, when the connection between the virtual device and the WiFi module is completed, the virtual device forwards the request for acquiring time, which is sent by the WiFi module, to the actual device. Specifically, when the virtual device sends a request for obtaining time to the actual device, the virtual device may also select a corresponding actual device according to a preset algorithm, where the preset algorithm is preferably a random algorithm. And randomly selecting an actual device through a random algorithm to establish connection with the virtual device.
And step S3, the real-time clock is returned to the WiFi module by the actual equipment through the virtual equipment according to the request for acquiring the time.
In this embodiment, when the actual device receives the request for obtaining the time, the actual device provides a real-time clock to the virtual device, and then returns the real-time clock to the WiFi module through the virtual device.
The Real Time Clock is abbreviated RTC (Real Time Clock), which is an integrated circuit, commonly referred to as a Clock chip. The clock chip is one of the most widely used consumer electronic products in daily life, and provides accurate real-time for people or provides an accurate time reference for an electronic system. At present, most clock chips adopt a crystal oscillator with higher precision as a clock source, and some clock chips can work when a main power supply is powered off and need to be supplied with power by an additional battery.
According to the real-time clock providing method of the server, when the server receives the time obtaining requests sent by the WiFi modules, the corresponding virtual equipment is selected according to a preset algorithm to be respectively connected with the WiFi modules, then when the connection between the virtual equipment and the WiFi modules is completed, the virtual equipment sends the time obtaining requests to the actual equipment, and finally the actual equipment returns the real-time clock to the WiFi modules through the virtual equipment according to the time obtaining requests. Therefore, when a large number of WiFi modules acquire the real-time clock from the server at the same time, the server can be prevented from being paralyzed.
Referring to fig. 3, in a second embodiment, based on the first embodiment shown in fig. 2, the WiFi module is built in the household appliance, and before step S3, the method further includes:
step S4, acquiring the online time of the household appliance;
in this embodiment, the online time includes a login time period, an online duration, and the like of the home appliance, and the specific obtaining manner is as follows: and acquiring the login time of the household appliance, recording the off-line time caused by the power failure or poor network condition of the household appliance and the like, and calculating a difference value according to the off-line time and the login time to obtain the on-line time of the household appliance in a certain time period. And when the household appliance is on-line again, acquiring the on-line time of the household appliance again, and accumulating the on-line time of the household appliance.
And step S5, carrying out priority sequencing on the virtual equipment according to the online time of the household electrical appliance.
In this embodiment, the virtual devices connected to the WiFi modules of the home appliance devices are prioritized according to the online time of the home appliance devices. When the longer the online time of the household appliance is, the better the home network state of the household appliance is, the higher the priority of the corresponding virtual appliance is.
Referring to fig. 4, in a third embodiment, based on the first embodiment shown in fig. 2, the WiFi module is built in the household appliance, and before the step S3, the method further includes:
step S6, obtaining a quality parameter indicating the communication quality between the virtual equipment and the WiFi module;
and step S7, carrying out priority ordering on the virtual equipment according to the quality parameters.
In this embodiment, the quality parameter includes one or more of connection time, connection times, and packet loss rate. Indicating that the communication quality between the virtual device and the WiFi module is higher when the connection time is longer; when the connection time is shorter, indicating that the communication quality between the virtual equipment and the WiFi module is lower; when the connection times are more, indicating that the communication quality between the virtual equipment and the WiFi module is lower; when the connection times are less, indicating that the communication quality between the virtual equipment and the WiFi module is higher; when the packet loss rate is higher, indicating that the communication quality between the virtual equipment and the WiFi module is lower; when the packet loss rate is lower, indicating that the communication quality between the virtual equipment and the WiFi module is higher. When the acquired quality parameters include the above parameters, the weight setting can be performed on the parameters, and the comprehensive communication quality can be calculated.
When the communication quality is higher, the priority of the corresponding virtual equipment is higher; when the communication quality is lower, the priority of the corresponding virtual device is lower.
Referring to fig. 3 or 4, in the fourth embodiment, based on the second or third embodiment, the step S3 includes:
step S31, when the actual device receives the request for obtaining time, obtaining the virtual device with the highest priority;
and step S32, returning a real-time clock to the WiFi module through the virtual equipment with the highest priority.
In this embodiment, when receiving the time acquisition request forwarded by the virtual device, the actual device acquires a virtual device with the highest priority among the virtual devices, that is, the home appliance device with the longest online time is selected. And returning a real-time clock to the WiFi module of the household appliance with the longest online time through the virtual appliance with the highest priority. Therefore, the success rate of returning the real-time clock to the WiFi module of the household appliance can be improved, the real-time clock is prevented from being provided for the household appliance with poor network condition by the actual equipment, and the stability of communication is ensured.
Preferably, the time format provided by the real-time clock is a json format, and the format is easy to read and write by people and easy to analyze and generate by a machine, so that the network transmission efficiency can be effectively improved.
The present invention also provides a server comprising a processor, a memory and a real-time clock providing program of the server stored on the memory and operable on the processor, wherein the real-time clock providing program of the server, when executed by the processor, implements the steps of the real-time clock providing method of the server as described above.
The invention also provides household electrical appliance equipment which is provided with a WIFI module, wherein the WIFI module is used for sending a time acquisition request to a server and receiving a real-time clock returned by actual equipment of the server through virtual equipment when the virtual equipment of the server is connected with the WIFI module. Preferably, the household appliance is an air conditioner.
Referring to fig. 4, the present invention further provides a real-time clock providing system 100, which includes the server 1 as described above, and the home appliance 2 as described above.
The present invention also provides a computer-readable storage medium storing a real-time clock providing program of a server, which when executed by a processor, implements the steps of the real-time clock providing method of the server as described above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, 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 like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A real-time clock providing method of a server, wherein the server includes a plurality of virtual devices and a plurality of real devices, the real-time clock providing method of the server comprising the steps of:
when the server receives requests for acquiring time sent by a plurality of WiFi modules, the corresponding virtual equipment is selected according to a preset algorithm to be respectively connected with the WiFi modules, and one WiFi module corresponds to one virtual equipment;
when the connection between the virtual equipment and the WiFi module is finished, the virtual equipment selects the actual equipment according to a preset algorithm, one virtual equipment corresponds to one actual equipment one by one, and the virtual equipment sends a time acquisition request to the actual equipment;
when the actual equipment receives the request of acquiring the time, acquiring the virtual equipment with the highest priority;
and returning a real-time clock to the WiFi module through the virtual equipment with the highest priority.
2. The method for providing a real-time clock of a server according to claim 1, wherein the WiFi module is built in an electric home appliance, and the step of acquiring the virtual device with the highest priority by the real device upon receiving the request for acquiring the time further comprises:
acquiring the online time of the household appliance;
and carrying out priority sequencing on the virtual equipment according to the online time of the household electrical appliance equipment.
3. The method for providing a real-time clock of a server according to claim 1, wherein the WiFi module is built in an electric home appliance, and the step of acquiring the virtual device with the highest priority by the real device upon receiving the request for acquiring the time further comprises:
acquiring a quality parameter indicating the communication quality between the virtual equipment and the WiFi module;
and carrying out priority sequencing on the virtual equipment according to the quality parameters.
4. A real time clock providing method of a server according to claim 3, wherein the quality parameter includes: one or more of connection time, connection times and packet loss rate.
5. The real time clock providing method of the server as claimed in claim 1, wherein the real time clock provides time in a json format.
6. The real time clock providing method of the server according to claim 1, wherein the number of the virtual devices is greater than or equal to the number of the actual devices.
7. A server, characterized in that the server comprises a processor, a memory and a real-time clock providing program of the server stored on the memory and operable on the processor, which when executed by the processor implements the steps of the real-time clock providing method of the server according to any one of claims 1-6.
8. The utility model provides a household electrical appliances, its characterized in that, household electrical appliances has a WIFI module, the WIFI module is used for sending the request of obtaining the time to the server, and when accomplishing the connection between a virtual device of server with the WIFI module, receive an actual equipment of server passes through the real-time clock that the virtual device returned, the virtual device is according to preset algorithm selection one the actual equipment, one the virtual device with one the actual equipment one-to-one.
9. The home device of claim 8, wherein the home device is an air conditioner.
10. A system for providing a real-time clock, the system comprising the server according to claim 7 and the home appliance according to any one of claims 8 to 9.
11. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a real-time clock providing program of a server, which when executed by a processor implements the steps of the real-time clock providing method of the server according to any one of claims 1 to 6.
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| CN111176128A (en) * | 2020-01-02 | 2020-05-19 | 深圳拓邦股份有限公司 | Method, device, server and system for improving online rate of Internet of things household appliances |
| CN114157407B (en) * | 2021-11-16 | 2023-09-19 | 北京华能新锐控制技术有限公司 | System and method for synchronizing clocks across secure areas under unidirectional isolation condition |
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| CN105025080A (en) * | 2015-06-02 | 2015-11-04 | 深圳市创梦天地科技有限公司 | Overload protection method for distributed system and servers |
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