CN116248620A - Intelligent table data synchronization method, system, computer equipment and storage medium - Google Patents
Intelligent table data synchronization method, system, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a table data intelligent synchronization method, a system, a computer device and a storage medium. The method comprises the following steps: acquiring a first table data synchronization request sent by a data sending end; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data; responding to a first table data synchronization request, and determining the size of a local cache space of the intelligent gateway; if the size of the buffer space required by the first length is larger than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain a target buffer space; the size of the target cache space meets the size of the target space; the target space size matches the sum of the first length and the second length; and transmitting the size of the target cache space to the data transmitting end so that the data transmitting end determines the target data length of the next synchronization based on the size of the target cache space. The method can ensure the normal function of the intelligent gateway.
Description
Technical Field
The present disclosure relates to the field of data synchronization technologies, and in particular, to a method, a system, a computer device, and a storage medium for intelligently synchronizing table data.
Background
With the rapid development of smart home technology, more and more smart home devices enter thousands of households, and in order to exert the functions of the smart home devices to the maximum extent, smart gateways are often used to specially manage the smart home devices. Each home is typically configured with a plurality of intelligent gateways, with a plurality of intelligent home devices connected under each intelligent gateway. After the intelligent gateway is on line, the latest table data of the home accessed by the intelligent gateway, such as timing data, scene data, intelligent linkage data and the like, need to be synchronized from the data transmitting end.
In the traditional method, because the memory space of the intelligent gateway is limited, when the intelligent gateway synchronizes the table data from the data transmitting end, the table data is cached by distributing the memory with fixed size in the local synchronous data cache area of the intelligent gateway. However, as the service time of the intelligent gateway increases, the data volume of the table data is larger and larger, and when the intelligent gateway synchronizes the table data from the data transmitting end, the abnormal function of the intelligent gateway is caused due to insufficient memory size of the local synchronous data buffer zone of the intelligent gateway.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method, a system, a computer device, a computer readable storage medium, and a computer program product for intelligently synchronizing table data that can ensure that an intelligent gateway functions properly.
In a first aspect, the present application provides a method for intelligently synchronizing table data, where the method includes:
acquiring a first table data synchronization request sent by a data sending end; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data;
responding to a first table data synchronization request, and determining the size of a local cache space of the intelligent gateway;
if the size of the buffer space required by the first length is larger than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain a target buffer space; the size of the target cache space meets the size of the target space; the target space size matches the sum of the first length and the second length;
and transmitting the size of the target cache space to the data transmitting end so that the data transmitting end determines the target data length of the next synchronization based on the size of the target cache space.
In some embodiments, if the size of the buffer space required by the first length is greater than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain the target buffer space, where the steps specifically include:
If the size of the buffer space required by the first length is larger than the size of the local buffer space, buffer cleaning is carried out according to the data type of the buffer data in the local buffer space, and an updated buffer space is obtained;
and determining the target cache space according to a first size relation between the updated cache space and the target space.
In some embodiments, the step of determining the target cache space according to a first size relationship between the updated size of the cache space and the target space size specifically includes:
if the first size relation indicates that the size of the updated cache space is larger than or equal to the size of the target space, the updated cache space is taken as the target cache space;
and if the first size relation indicates that the updated cache space is smaller than the target space, performing cache cleaning according to the cache time of the cache data in the local cache space to obtain the target cache space.
In some embodiments, the first table data synchronization request is obtained by the intelligent gateway from the data sender; before the data sending end sends the first table data synchronization request to the intelligent gateway, the method further comprises the following steps:
determining a second size relation between the size of a buffer memory space required by the total length of the data of the table to be synchronized in the data transmitting end and the size of the estimated buffer memory space; the estimated cache space size is the estimated local cache space size of the intelligent gateway;
And determining currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule.
In some embodiments, the table data to be synchronized includes a plurality of service table data; the preset rules comprise priority ordering rules; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule specifically comprises the following steps:
if the second size relation indicates that the size of the buffer space required by the total length of the data of the multiple service tables is larger than the size of the estimated buffer space, sequencing the data of the multiple service tables according to a priority sequencing rule to obtain a sequencing result;
and determining the currently synchronous table data from the multiple service table data according to the sorting result.
In some embodiments, the table data to be synchronized is single service table data; the preset rules comprise slicing rules; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule specifically comprises the following steps:
if the second size relation indicates that the size of the buffer space required by the length of the single service table data is larger than the size of the estimated buffer space, the single table data is subjected to slicing according to the slicing rule to obtain each sliced data;
And determining the required cache space from the fragment data to meet the estimated cache space size, and taking the fragment data as the currently synchronous table data.
In some embodiments, the method further comprises:
acquiring a second table data synchronization request sent by a data sending end; the second table data synchronization request carries the synchronization table data meeting the target data length and the next table data length to be synchronized;
caching the synchronous table data in a local cache space, and cleaning a cache space for storing the next data of the table to be synchronized; the next time the table data to be synchronized conforms to the table data length.
In a second aspect, the present application further provides a table data intelligent synchronization system, which is characterized in that the system includes: a data transmitting end and an intelligent gateway;
the data sending end is used for sending a first table data synchronization request to the intelligent gateway; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data;
the intelligent gateway is used for responding to the first table data synchronization request and determining the size of the local cache space; if the size of the cache space required by the first length is larger than the size of the local cache space, cache cleaning is carried out on the local cache space, and a target cache space is obtained; the size of the target cache space meets the size of the target space; the target space size matches the sum of the first length and the second length; the size of the target cache space is sent to a data sending end;
The data sending end is further used for determining the target data length of the next synchronization based on the size of the target cache space.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory in which a computer program is stored and a processor which, when executing the computer program, carries out the steps of the above method.
In a fourth aspect, the present application also provides a computer-readable storage medium. A computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above method.
In a fifth aspect, the present application also provides a computer program product. Computer program product comprising a computer program which, when executed by a processor, implements the steps of the above method.
According to the intelligent table data synchronization method, system, computer equipment, computer readable storage medium and computer program product, the sum of the first length of currently synchronized table data and the second length of next expected synchronized table data carried in the first table data synchronization request sent by the data sending end is compared with the size of the local cache space of the intelligent gateway, when the size of the local cache space is insufficient for caching the currently synchronized table data, cache cleaning is conducted on the local cache space to obtain the target cache space, the size of the target cache space meets the cache space requirements of the currently synchronized table data and the next expected synchronized table data, the data sending end determines the next synchronized target data length according to the size of the target cache space, namely intelligent throttling processing is conducted according to the size of the local cache space of the intelligent gateway, so that the local cache space of the intelligent gateway can cache all contents of the next synchronized table data, the problem of data packet loss caused by insufficient local cache space is avoided, and the normal function of the intelligent gateway is ensured.
Drawings
FIG. 1 is an application environment diagram of a table data intelligent synchronization method in one embodiment;
FIG. 2 is a flow diagram of a method for intelligent synchronization of tabular data in one embodiment;
FIG. 3 is a flow chart of a method for intelligent synchronization of table data in another embodiment;
FIG. 4 is a block diagram of a system for intelligent synchronization of tabular data in one embodiment;
FIG. 5 is an internal block diagram of a computer device in one embodiment;
fig. 6 is an internal structural view of a computer device in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The intelligent table data synchronization method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. The intelligent gateway 102 and the data transmitting terminal 101 are both connected to the intelligent home system, when the intelligent gateway 102 is connected to the intelligent home system, that is, after the intelligent gateway 102 is connected to the intelligent home system, the device state of the intelligent gateway 102 is displayed as on-line, the device state is communicated with the data transmitting terminal 101, and the table data of the connected home is synchronized from the data transmitting terminal 101. The data sender is a device that sends table data to the intelligent gateway 102, including but not limited to the server and the rest of the intelligent gateways. It can be appreciated that the intelligent gateway 102 performs data interaction with a server or a data sending end such as the intelligent gateway to synchronize the latest table data of the home accessed by the intelligent gateway, so that all table data of the home accessed by the intelligent gateway can be known through the intelligent gateway 102.
Illustratively, the data sender 101 sends a first table data synchronization request to the intelligent gateway 102; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data. The intelligent gateway 102 determines a local cache space size of the intelligent gateway 102 in response to the first table data synchronization request. If the size of the buffer space required by the first length is larger than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway 102 to obtain a target buffer space; the size of the target cache space meets the size of the target space; the target space size matches the sum of the first length and the second length. The intelligent gateway 102 sends the size of the target buffer space to the data sending terminal 101, and the data sending terminal 101 determines the target data length of the next synchronization based on the size of the target buffer space.
In one embodiment, as shown in fig. 2, there is provided a table data intelligent synchronization method, which can be implemented through interaction between the data transmitting end 101 and the intelligent gateway 102 in fig. 1, including the following steps:
The table data is data directly collected or generated by equipment or a user in the intelligent home system corresponding to the home accessed by the intelligent gateway, and the table data comprises at least one of data generated by the equipment, data set by the user and intelligent home system data.
In some embodiments, the device generated data includes device switch state data, alarm state data, and location state data. The data set by the user includes user-created context data and automation data. The smart home system data includes home account data.
The first table data synchronization request is a request sent by the data sending end when the data sending end synchronizes the table data to the intelligent gateway for the first time, and carries the currently synchronized table data in addition to the first length of the currently synchronized table data and the second length of the table data which is expected to be synchronized next time.
For ease of understanding, the first table data synchronization request is illustrated: the data transmitting end synchronizes the table data with the intelligent gateway in different time periods A and B respectively, and the first table data synchronization request can be a request transmitted by the data transmitting end when the data transmitting end synchronizes the table data with the intelligent gateway for the first time in the time period A. Or the request sent by the data sending end when synchronizing the table data to the intelligent gateway for the first time in the time period B. It is understood that the first table data synchronization request refers only to a request sent for the first time when the data sending end synchronizes the table data to the intelligent gateway in a certain period of time.
The first length is the length of currently synchronized table data carried in the first table data synchronization request, that is, the length of table data carried in a request sent by the data sending end when the data sending end requests the synchronized table data from the intelligent gateway for the first time in a certain period of time.
The second length is the length of the table data to be synchronized next time, i.e. the length of the table data to be synchronized next time when the data transmitting end synchronizes the table data to the intelligent gateway for the first time. It can be understood that, when the data transmitting end synchronizes the table data to the intelligent gateway for the first time, the actual size of the local buffer space of the intelligent gateway is not known, so that the first length and the second length are carried in the first table data synchronization request, and the intelligent gateway is instructed to clear the local buffer space in advance, so as to meet the buffer space requirement of the next time of synchronizing the table data.
Illustratively, when the intelligent gateway accesses the home to be synchronized with the table data, the data transmitting end transmits a first table data request to the intelligent gateway after the intelligent gateway is online. After receiving the first table data request, the intelligent gateway analyzes the first table data request to obtain a first length of currently synchronized table data and a second length of next expected synchronized table data.
In some embodiments, the step of parsing the first table data request includes: the first table data request is decrypted, checksum formatted.
Illustratively, the intelligent gateway determines the local buffer space size of the intelligent gateway based on the total size of the local buffer space and the size of the buffer data per write in response to the first table data synchronization request.
In some embodiments, determining the local cache space size of the intelligent gateway is performed by a memory management module of the intelligent gateway. Specifically, the total size of the local buffer space of the intelligent gateway is a, and after the buffer data is written each time, the memory management module records the size O of the written buffer data, and then the size r=a-O of the local buffer space.
The target cache space is used for caching the table data to be synchronized and is used for caching the table data to be synchronized next time.
Illustratively, the intelligent gateway compares the size of the buffer space required by the first length of the currently synchronized table data with the size of the local buffer space of the intelligent gateway to obtain a first comparison result. If the first comparison result shows that the size of the buffer space required by the first length is larger than the size of the local buffer space, namely the local buffer space of the intelligent gateway cannot buffer the whole content of the currently synchronized table data, buffer cleaning is carried out on the buffer data in the local buffer space of the intelligent gateway, and a target buffer space is obtained.
It should be noted that, if the local buffer space of the intelligent gateway cannot buffer the entire content of the currently synchronized table data, the intelligent gateway will refuse to receive the currently synchronized table data carried in the first table data synchronization request, i.e. a data packet loss occurs.
In some embodiments, if the first comparison result indicates that the size of the buffer space required by the first length is smaller than or equal to the size of the local buffer space, the currently synchronized table data is buffered in the local buffer space of the intelligent gateway, and if the size of the local buffer space remaining after the currently synchronized table data is buffered cannot store the next table data to be expected to be synchronized, buffer cleaning is required to meet the buffer space requirement of the next synchronized table data.
And 204, transmitting the size of the target cache space to the data transmitting end so that the data transmitting end determines the target data length of the next synchronization based on the size of the target cache space.
The target data length is the data length of the next synchronous table data, namely the length of the table data which is not synchronized to the intelligent gateway for the first time by the data transmitting end. For example, in the period a, the data transmitting end synchronizes the length of the table data to the intelligent gateway for the second and third times … … n-th times. It can be understood that, because the type and the length of the table data synchronized by the data transmitting end to the intelligent gateway are possibly different each time, the target data length of each synchronization is changed, and just because the data transmitting end determines the length of the next synchronization table data according to the size of the target buffer space, when the next synchronization table data is obtained, the local buffer space of the intelligent gateway can only store the whole content of the next synchronization table data, so that the packet loss of the data is avoided.
The intelligent gateway sends the size of the target buffer space to the data sending end, and the data sending end determines the table data in next synchronization and the length of the table data in next synchronization according to the size of the target buffer space and a preset rule, namely, determines the length of the target data in next synchronization.
According to the intelligent table data synchronization method, system, computer equipment, computer readable storage medium and computer program product, the sum of the first length of currently synchronized table data and the second length of next expected synchronized table data carried in the first table data synchronization request sent by the data sending end is compared with the size of the local cache space of the intelligent gateway, when the size of the local cache space is insufficient for caching the currently synchronized table data, cache cleaning is conducted on the local cache space to obtain the target cache space, the size of the target cache space meets the cache space requirements of the currently synchronized table data and the next expected synchronized table data, the data sending end determines the next synchronized target data length according to the size of the target cache space, namely intelligent throttling processing is conducted according to the size of the local cache space of the intelligent gateway, so that the local cache space of the intelligent gateway can cache all contents of the next synchronized table data, the problem of data packet loss caused by insufficient local cache space is avoided, and the normal function of the intelligent gateway is ensured.
In some embodiments, if the size of the buffer space required by the first length is greater than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain the target buffer space, where the steps specifically include: if the size of the buffer space required by the first length is larger than the size of the local buffer space, buffer cleaning is carried out according to the data type of the buffer data in the local buffer space, and an updated buffer space is obtained; and determining the target cache space according to a first size relation between the updated cache space and the target space.
The data type of the cache data refers to a service type of the cache data, and the service type of the cache data includes at least one of a log file, a temporary file of a download file and the like.
For example, if the size of the buffer space required by the first length is greater than the size of the local buffer space, that is, the size of the local buffer space of the intelligent gateway cannot buffer the entire content of the currently synchronized table data in the first table data synchronization request, the intelligent gateway performs buffer cleaning on the buffer data according to the service type of the buffer data in the local buffer space, so as to obtain an updated buffer space; and comparing the size of the updated cache space with the size of the target space to obtain a first size relation, and determining the target cache space according to the first size relation.
In some embodiments, the step of performing cache cleaning on the cache data according to the service type of the cache data in the local cache space to obtain the updated cache space includes: and preferentially cleaning the log file, and cleaning the temporary file of the downloaded file to obtain the updated cache space when the updated cache space obtained by cleaning the log file still does not meet the size of the target space.
In the above embodiment, the cache cleaning is performed according to the service type of the cache data in the local cache space of the intelligent gateway, and the target cache space is determined according to the first size relation between the updated size of the cache space and the size of the target space, so that the size of the local cache space is increased, and the abnormal function of the intelligent gateway caused by too much cleaned cache data is avoided.
In some embodiments, the step of determining the target cache space according to a first size relationship between the updated size of the cache space and the target space size specifically includes: if the first size relation indicates that the size of the updated cache space is larger than or equal to the size of the target space, the updated cache space is taken as the target cache space; and if the first size relation indicates that the updated cache space is smaller than the target space, performing cache cleaning according to the cache time of the cache data in the local cache space to obtain the target cache space.
For example, if the first size relationship indicates that the size of the updated cache space is greater than or equal to the size of the target space, that is, the size of the local cache space updated by the intelligent gateway can cache the currently synchronized table data and the next expected synchronized table data, which indicates that the cache data in the local cache space does not need to be cleaned, the updated cache space is taken as the target cache space. And if the first size relation indicates that the updated cache space is smaller than the size of the target space, cache cleaning is carried out according to the sequence of the cache time of the cache data in the local cache space, and the target cache space is obtained.
In some embodiments, cache cleaning according to the chronological order of the cache times of the cache data in the local cache space comprises: and sequencing the cache data according to the cache time, and clearing the cache data according to the sequence from the early to the late, namely clearing the data cached first preferentially.
In some embodiments, cache cleaning according to the chronological order of the cache times of the cache data in the local cache space comprises: and sequencing the cache data according to the cache time, and cleaning the cache data according to the sequence from late to early, namely cleaning the cached data preferentially.
For example, when the updated cache space obtained by cleaning the log file still does not meet the target space size, cache cleaning is performed according to the sequence of the cache time of the temporary file of the downloaded file.
In the above embodiment, the cache cleaning is performed according to the cache time of the cache data, and the cache is released, so that the size of the local cache space can be increased, and the abnormal function of the intelligent gateway caused by randomly cleaning the cache data can be avoided.
In some embodiments, the first table data synchronization request is obtained by the intelligent gateway from the data sender; before the data sending end sends the first table data synchronization request to the intelligent gateway, the method further comprises the following steps: determining a second size relation between the size of a buffer memory space required by the total length of the data of the table to be synchronized in the data transmitting end and the size of the estimated buffer memory space; the estimated cache space size is the estimated local cache space size of the intelligent gateway; and determining currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule.
The total length of the table data to be synchronized is the total length of the table data to be synchronized to the intelligent gateway by the data transmitting end. It will be appreciated that when there are multiple types of table data to be updated, the total length of the table data to be synchronized is the total length of the multiple types of table data to be updated.
The estimated cache space size is the estimated local cache space size of the intelligent gateway. It can be understood that the estimated cache space size is a dynamic value in relation to the home data of the home to which the intelligent gateway is connected. When the intelligent gateway is connected to a plurality of controlled devices, or a plurality of devices are connected to a household to which the intelligent gateway is connected, a plurality of data are generated, and even if the factory memory of each intelligent gateway is the same, the estimated cache space of each intelligent gateway is different.
For example, the intelligent gateway with the device model of xxxx has an internal memory of 200M, and 60M of memory remains after removing the memory occupied by other internal storage files and other local files. The intelligent gateway takes 5M in the residual 60M memory as a local cache space, and the local cache space of the intelligent gateway is theoretically 5M. The data sending end counts according to the number of the devices accessed to the home by the intelligent gateway and the number of the controlled devices accessed to the intelligent gateway, and predicts the size of the buffer space of the intelligent gateway to be 3M, namely, predicts the size of the buffer space to be 3M.
The data sending end calculates the total length of the data to be synchronized when the data to be synchronized exist, estimates the size of the cache space according to the number of devices accessed to the home by the intelligent gateway and the number of controlled devices accessed to the intelligent gateway, and determines a second size relationship between the size of the cache space required by the total length of the data to be synchronized and the estimated size of the cache space, namely, determines whether the estimated local cache space of the intelligent gateway can cache the whole content of the data to be synchronized; and determining currently synchronized table data from the table data to be synchronized according to the second size relationship and the preset rule.
In the above embodiment, before the data transmitting end transmits the first table data synchronization request to the intelligent gateway, the data transmitting end predicts whether the local buffer space of the intelligent gateway can buffer the table data to be synchronized, and determines the currently synchronized table data from the table data to be synchronized according to a preset rule, so as to avoid abnormal functions of the intelligent gateway caused by insufficient size of the local buffer space of the intelligent gateway.
In some embodiments, the table data to be synchronized includes a plurality of service table data; the preset rules comprise priority ordering rules; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule specifically comprises the following steps: if the second size relation indicates that the size of the buffer space required by the total length of the data of the multiple service tables is larger than the size of the estimated buffer space, sequencing the data of the multiple service tables according to a priority sequencing rule to obtain a sequencing result; and determining the currently synchronous table data from the multiple service table data according to the sorting result.
The priority ordering rule is an ordering rule of the data of the table to be synchronized, and comprises at least one of ordering according to alarm emergency level, ordering according to data base type, ordering according to data complexity, ordering according to table data coupling condition and the like. It will be appreciated that urgent or important table data may be prioritized by prioritization rules.
For example, the order of the alarm urgency level is as follows: security alarm > equipment alarm. The order of ordering by table data base type is as follows: family data > account data > room data. The order of ordering by table data complexity is as follows: scenario binding table > automation table.
In some embodiments, the order of ordering by table data base type further comprises: sensor alarm message priority > control device message > modify device information.
The result of the ranking by priority is as follows: security table data > Room table data > Device table data.
If the second size relationship indicates that the size of the buffer space required by the total length of the multiple service table data is larger than the size of the estimated buffer space, that is, the local buffer space of the intelligent gateway cannot buffer the whole content of the multiple service table data, then ordering the multiple service table data according to at least one of priority ordering rules such as ordering according to alarm emergency level, ordering according to data base type, ordering according to data complexity, ordering according to table data coupling condition, and the like, so as to obtain an ordering result; and determining the currently synchronous table data from the multiple service table data according to the sorting result.
It will be appreciated that the currently synchronized table data determined from the various business table data may be one or more. For example, if the estimated cache space size is only the cache space size required to satisfy the sum of the length of the table data a of the priority 1 and the length of the table data B of the priority 2, the determined currently synchronized table data is the table data a and the table data B. For another example, if the size of the buffer space is estimated to be only enough to meet the size of the buffer space required by the length of the table data C of the priority 1, the determined currently synchronized table data is the table data C.
In some embodiments, the rules for the data sender to send the various service table data are as follows: and after sequencing the data of the multiple service tables according to the priority, respectively carrying serial numbers S on the data of each service table, and sequentially sending the current synchronous table data according to the sequencing result. Correspondingly, after receiving the current synchronous table data, the intelligent gateway performs cache cleaning to obtain a target cache space under the condition that the local cache space meets the current synchronous table data and cannot meet the next table data to be synchronized, and returns a sending request to the data sending terminal, wherein the sending request carries the size of the target cache space, the name N and the serial number S of the current synchronous table data. After receiving the transmission request, the data transmitting end determines the next table data to be synchronized from the unsynchronized table data according to the name N and the serial number S of the currently synchronized table data.
In the above embodiment, when the local buffer space of the intelligent gateway cannot buffer the whole content of the multiple service table data, the currently synchronized table data is determined from the multiple service table data according to the priority ordering result, so as to ensure that emergency or important table data synchronization can be realized between the data transmitting end and the intelligent gateway as soon as possible.
In some embodiments, the table data to be synchronized is single service table data; the preset rules comprise slicing rules; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relation and the preset rule specifically comprises the following steps: if the second size relation indicates that the size of the buffer space required by the length of the single service table data is larger than the size of the estimated buffer space, the single table data is subjected to slicing according to the slicing rule to obtain each sliced data; and determining the required cache space from the fragment data to meet the estimated cache space size, and taking the fragment data as the currently synchronous table data.
Wherein, the single service table data refers to single service table data. For example, the table data to be synchronized are all alarm data, namely single service table data. It will be appreciated that when there is only one data type of table data to be synchronized, there is necessarily single service table data. When the plurality of service table data are prioritized, it is also possible that a single service table data, such as the table data C in the above embodiment, may appear when determining the currently synchronized table data from the plurality of service table data. It can be understood that when the currently synchronized table data determined after the priority ordering is single service table data and the required buffer space is larger than the estimated buffer space, the slicing process is required according to the slicing rule.
If the second size relationship indicates that the size of the buffer space required by the length of the single service table data is larger than the size of the estimated buffer space, that is, the local buffer space of the intelligent gateway cannot buffer the whole content of the single service table data, the data sending end performs fragmentation processing on the single service table data according to the default threshold size to obtain each fragment data; and determining the required cache space from the fragment data to meet the estimated cache space size, and taking the fragment data as the currently synchronous table data.
In some embodiments, the step of performing the fragmentation process at the default threshold size comprises: and uniformly slicing the single service table data according to the default threshold value to obtain slicing data with consistent size, and marking the slicing data with serial numbers to mark the data as slicing data. Accordingly, after receiving the table data synchronization request, the intelligent gateway can judge that the current synchronization table data in the received table data synchronization request is the fragment data according to the sequence number, and then cache cleaning is carried out according to the size of the fragment data to obtain a target cache space, and the size of the target cache space and the sequence number of the fragment data requested to be sent are sent to the data sending end. And the data transmitting end synchronizes the fragment data according to the sequence number of the fragment data which is requested to be transmitted and the size of the target cache space.
In some embodiments, the step of performing the fragmentation process at the default threshold size comprises: and carrying out non-uniform slicing treatment on the single service table data according to a plurality of default threshold values to obtain various slicing data with inconsistent sizes.
In the above embodiment, when the size of the buffer space required by the length of the single service table data is greater than the size of the estimated buffer space, the single table data is sliced according to the slicing rule, and the currently synchronized table data is determined from each sliced data obtained by the slicing process, so that the synchronization of the table data between the data transmitting end and the intelligent gateway is ensured.
In some embodiments, the method further comprises: acquiring a second table data synchronization request sent by a data sending end; the second table data synchronization request carries the synchronization table data meeting the target data length and the next table data length to be synchronized; caching the synchronous table data in a local cache space, and cleaning a cache space for storing the next data of the table to be synchronized; the next time the table data to be synchronized conforms to the table data length.
Wherein, the length of the next table data to be synchronized is the length of the next synchronization table data when the synchronization table data meeting the target data length is synchronized.
The second table data synchronization request is a request which is not transmitted for the first time, namely, a request transmitted for the second time and the third time … … nth time when the data transmitting end continuously synchronizes the table data to the intelligent gateway in a certain period of time.
For ease of understanding, the second table data synchronization request is illustrated: the data transmitting end synchronizes the table data to the intelligent gateway in the time period A, and the second table data synchronization request may be a request transmitted to the intelligent gateway for the second time and the third time … … nth time after the data transmitting end transmits the request when requesting the table data to the intelligent gateway for the first time in the time period A. It is understood that the second table data synchronization request only refers to a request sent after the first request sent when the data sending end continuously synchronizes the table data to the intelligent gateway in a certain period of time, and is only distinguished from the first table data synchronization request.
For example, when the data transmitting end synchronizes table data to the intelligent gateway for the first time, the intelligent gateway performs cache cleaning due to insufficient size of the local cache space, so as to obtain a target cache space. The data transmitting end determines the length of the next synchronous target data and the synchronous table data meeting the length of the target data according to the size of the target cache space, and transmits a second table data synchronous request carrying the synchronous table data meeting the length of the target data and the length of the next table data to be synchronized to the intelligent gateway. After receiving the second table data synchronization request, the intelligent gateway caches the synchronization table data meeting the target data length in a local cache space, and cleans up a cache space for storing the next table data to be synchronized. It will be appreciated that since the target data length is determined according to the size of the target cache space, the intelligent gateway may cache the synchronization table data of the target data length in the local cache space. In addition, the intelligent gateway clears the cache space in advance to ensure that the next table data to be synchronized can be cached.
In the above embodiment, the second table data synchronization request carries the synchronization table data meeting the target data length and the next table data length to be synchronized, and after the local buffer memory space of the intelligent gateway buffers the synchronization table data meeting the target data length, the buffer memory space meeting the requirement of storing the next table data to be synchronized is cleaned, that is, the buffer memory space of the intelligent gateway is dynamically cleaned according to the data length of each synchronization table data, so that the problem of data packet loss caused by insufficient local buffer memory space of the intelligent gateway is avoided, and the normal function of the intelligent gateway is ensured.
In some embodiments, as shown in fig. 3, a flow diagram of another table data intelligent synchronization method is provided, which can be implemented through the interaction between the data sender 101 and the intelligent gateway 102 in fig. 1. The description is given by taking the data sending end as the service end as an example, and the method comprises the following steps:
when the home to be synchronized is accessed by the intelligent gateway, the server starts to execute S301 after the intelligent gateway is online.
S301, the server calculates the total length of data of the table to be synchronized, and predicts the local cache space size of the intelligent gateway to obtain the predicted cache space size.
S302, the server determines whether the size of the buffer space required by the total length of the data of the table to be synchronized is larger than the estimated buffer space. If yes, executing S303, wherein the table data to be synchronized comprises a plurality of service table data; if not, directly synchronizing the table data to the intelligent gateway.
S303, the server orders the data of the multiple service tables according to the priority ordering rule to obtain an ordering result; and determining the currently synchronous table data from the multiple service table data according to the sorting result.
If the size of the buffer space required by the currently synchronized table data determined from the multiple service table data is larger than the size of the estimated buffer space, performing slicing processing on the single table data according to a slicing rule to obtain each piece of sliced data; and determining the required cache space from the fragment data to meet the estimated cache space size, and taking the fragment data as the currently synchronous table data.
S304, the server side sends a first table data synchronization request to the intelligent gateway; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data.
S305, the intelligent gateway responds to the first table data synchronization request to determine the local cache space size of the intelligent gateway.
S306, if the size of the buffer space required by the first length is larger than the size of the local buffer space, the intelligent gateway performs buffer cleaning according to the data type of the buffer data in the local buffer space to obtain an updated buffer space; and if the updated cache space is smaller than the size of the target space, performing cache cleaning according to the cache time of the cache data in the local cache space to obtain the target cache space.
S307, the intelligent gateway sends the size of the target cache space to the server.
S308, the server determines the next synchronization table data and the target data length of the next synchronization table data based on the size of the target cache space.
S309, the server side sends a second table data synchronization request to the intelligent gateway; the second table data synchronization request carries the synchronization table data meeting the target data length and the next table data length to be synchronized.
S310, the intelligent gateway responds to the second table data synchronization request intelligent gateway, caches the synchronization table data in a local cache space, and cleans up a cache space for storing the next table data to be synchronized; the next time the table data to be synchronized conforms to the table data length.
For ease of understanding, S301 to S310 are illustrated. The result of the ranking by priority is as follows: table data a > table data b > table data c > table data d, the currently synchronized table data in the first table data synchronization request is table data a, the first length is the length of table data a, the table data to be synchronized next time is expected to be table data b, and the second length is the length of table data b. And when the local cache space of the intelligent gateway cannot store the table data a, cleaning the log files in the local cache space, and if the updated cache space obtained by cleaning the log files is smaller than the size of the target space, namely smaller than the size of the cache space required by storing the table data a and the table data b, performing cache cleaning according to the cache time of the temporary file of the downloaded file until the size of the updated cache space meets the size of the target space, namely obtaining the target cache space. The server determines that next synchronous table data is data a and table data b according to the size of the target cache space, next to-be-synchronized table data is table data c, and sends a second table data synchronous request carrying table data lengths of the table data a, the table data b and the table data c to the intelligent gateway. It will be appreciated that since the smart gateway now the local cache space size meets the target space size, table data a and table data b may be stored. After the intelligent gateway stores the table data a and the table data b, a cache space for storing the table data c is cleared, and the cache space of the table data c is larger than the length of the table data c.
According to the intelligent synchronization method for the table data, intelligent throttling processing is performed according to the size of the local cache space of the intelligent gateway, so that the local cache space of the intelligent gateway can cache the whole content of the table data in next synchronization, the problem of data packet loss caused by insufficient size of the local cache space of the intelligent gateway is avoided, and the normal function of the intelligent gateway is ensured.
In some embodiments, as shown in FIG. 4, there is provided a table data intelligent synchronization system, comprising: a data transmitting end 401 and an intelligent gateway 402.
A data sending end 401, configured to send a first table data synchronization request to an intelligent gateway; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data.
An intelligent gateway 402, configured to determine a local cache space size in response to the first table data synchronization request; if the size of the cache space required by the first length is larger than the size of the local cache space, cache cleaning is carried out on the local cache space, and a target cache space is obtained; the size of the target cache space meets the size of the target space; the target space size matches the sum of the first length and the second length; and sending the size of the target cache space to a data sending end.
The data sending end 401 is further configured to determine a target data length of the next synchronization based on the size of the target buffer space.
In some embodiments, the data sending end 401 is further configured to send a second table data synchronization request to the intelligent gateway; the second table data synchronization request carries the synchronization table data meeting the target data length and the next table data length to be synchronized.
The intelligent gateway 402 is further configured to cache the synchronization table data in a local cache space, and clear a cache space for storing the next data of the synchronization table; the next time the table data to be synchronized conforms to the table data length.
In the intelligent table data synchronization system, the sum of the first length of currently synchronized table data and the second length of next expected synchronized table data carried in the first table data synchronization request sent by the data sending end is compared with the size of the local cache space of the intelligent gateway, when the size of the local cache space is insufficient for caching the currently synchronized table data, the local cache space is cleared to obtain the target cache space, the size of the target cache space meets the cache space requirements of the currently synchronized table data and the next expected synchronized table data, the data sending end determines the next synchronized target data length according to the size of the target cache space, namely, intelligent throttling processing is carried out according to the size of the local cache space of the intelligent gateway, so that the local cache space of the intelligent gateway can cache all contents of the next synchronized table data, the problem that data packet loss occurs due to insufficient size of the local cache space of the intelligent gateway is avoided, and normal functions of the intelligent gateway are ensured.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a table data intelligent synchronization device for realizing the above-mentioned table data intelligent synchronization method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of one or more table data intelligent synchronization devices provided below may be referred to the limitation of the table data intelligent synchronization method hereinabove, and will not be repeated herein.
The various modules in the intelligent table data synchronization device can be realized in whole or in part by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 5. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used for storing relevant data required for realizing the intelligent table data synchronization method. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a method for intelligent synchronization of table data.
In one embodiment, a computer device is provided, which may be an intelligent gateway, and the internal structure of which may be as shown in fig. 6. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by a processor, implements a method for intelligent synchronization of table data. The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structures shown in fig. 5 or 6 are merely block diagrams of portions of structures related to the aspects of the present application and are not intended to limit the computer devices to which the aspects of the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
It should be noted that, the user information (including, but not limited to, user equipment information, user personal information, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data are required to comply with the related laws and regulations and standards of the related countries and regions.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. An intelligent table data synchronization method, which is characterized by comprising the following steps:
acquiring a first table data synchronization request sent by a data sending end; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data;
determining the size of a local cache space of the intelligent gateway in response to the first table data synchronization request;
If the size of the buffer space required by the first length is larger than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain a target buffer space; the size of the target cache space meets the size of the target space; the target space size matches a sum of the first length and the second length;
and sending the size of the target cache space to the data sending end so that the data sending end determines the target data length of the next synchronization based on the size of the target cache space.
2. The method of claim 1, wherein if the size of the buffer space required by the first length is greater than the size of the local buffer space, performing buffer cleaning on the local buffer space of the intelligent gateway to obtain a target buffer space, the method specifically includes:
if the size of the buffer space required by the first length is larger than the size of the local buffer space, buffer cleaning is carried out according to the data type of the buffer data in the local buffer space, and an updated buffer space is obtained;
and determining a target cache space according to a first size relation between the updated cache space and the target space.
3. The method according to claim 2, wherein the step of determining the target cache space according to the first size relation between the updated cache space size and the target space size specifically comprises:
if the first size relation indicates that the size of the updated cache space is larger than or equal to the size of the target space, the updated cache space is used as the target cache space;
and if the first size relation indicates that the updated cache space is smaller than the target space, cache cleaning is performed according to the cache time of the cache data in the local cache space, and the target cache space is obtained.
4. The method of claim 1, wherein the first table data synchronization request is obtained by an intelligent gateway from the data transmitting end; before the data sending end sends the first table data synchronization request to the intelligent gateway, the method further comprises:
determining a second size relation between the size of a buffer memory space required by the total length of the data of the table to be synchronized in the data transmitting end and the size of the estimated buffer memory space; the estimated cache space size is the estimated local cache space size of the intelligent gateway;
And determining the currently synchronized table data from the table data to be synchronized according to the second size relation and a preset rule.
5. The method of claim 4, wherein the table data to be synchronized comprises a plurality of service table data; the preset rule comprises a priority ordering rule; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relationship and a preset rule specifically includes:
if the second size relation indicates that the size of the buffer space required by the total length of the plurality of service table data is larger than the size of the estimated buffer space, sequencing the plurality of service table data according to the priority sequencing rule to obtain a sequencing result;
and determining the currently synchronous table data from a plurality of service table data according to the sorting result.
6. The method of claim 4, wherein the table data to be synchronized is single service table data; the preset rule comprises a slicing rule; the step of determining the currently synchronized table data from the table data to be synchronized according to the second size relationship and a preset rule specifically includes:
If the second size relation indicates that the size of the buffer space required by the length of the single service table data is larger than the size of the estimated buffer space, performing slicing processing on the single table data according to the slicing rule to obtain each piece of slicing data;
and determining the fragment data with the required cache space size meeting the estimated cache space size from the fragment data, and taking the fragment data as the currently synchronized table data.
7. The method according to any one of claims 1 to 6, further comprising:
acquiring a second table data synchronization request sent by the data sending terminal; the second table data synchronization request carries synchronization table data meeting the target data length and the next table data length to be synchronized;
caching the synchronization table data in a local caching space, and cleaning a caching space for storing the next data of the table to be synchronized; and the next table data to be synchronized accords with the table data length.
8. A smart meter data synchronization system, the system comprising: a data transmitting end and an intelligent gateway;
the data sending end is used for sending a first table data synchronization request to the intelligent gateway; the first table data synchronization request carries a first length of currently synchronized table data and a second length of next expected synchronized table data;
The intelligent gateway is used for responding to the first table data synchronization request and determining the size of a local cache space; if the size of the buffer space required by the first length is larger than the size of the local buffer space, performing buffer cleaning on the local buffer space to obtain a target buffer space; the size of the target cache space meets the size of the target space; the target space size matches a sum of the first length and the second length; the size of the target cache space is sent to the data sending end;
the data transmitting end is further configured to determine a target data length of next synchronization based on the size of the target buffer space.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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