CN108200117B - Intelligent handheld terminal data synchronization system and method - Google Patents
Intelligent handheld terminal data synchronization system and method Download PDFInfo
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- CN108200117B CN108200117B CN201711259536.5A CN201711259536A CN108200117B CN 108200117 B CN108200117 B CN 108200117B CN 201711259536 A CN201711259536 A CN 201711259536A CN 108200117 B CN108200117 B CN 108200117B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- H—ELECTRICITY
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Abstract
The invention discloses a data synchronization system and method for an intelligent handheld terminal, and relates to the technical field of intelligent manufacturing and Internet of things. The synchronous resource pool stores synchronous data to be synchronized to the intelligent handheld terminal; the management center is used for setting synchronous data needing to be updated to the synchronous resource pool in the central database and an intelligent handheld terminal list needing to synchronize the synchronous data, and updating the synchronous data needing to be updated to the synchronous resource pool in real time. After the intelligent handheld terminal is networked, the management center of the server downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data, and synchronization and consistency of downlink data between the server and the intelligent handheld terminal are achieved.
Description
Technical Field
The invention relates to the technical field of intelligent manufacturing and Internet of things, in particular to an intelligent handheld terminal data synchronization system and method.
Background
In the wave of rapid development of intelligent manufacturing and internet of things, more and more manufacturing enterprises can build intelligent factory internet of things, and acquire technical state data of manufacturing equipment, manufacturing process data of production activities and the like through intelligent handheld terminals, radio frequency tags, sensors and the like, so that the production efficiency of products is improved, the manufacturing data of the products is accumulated, and the quality level of the products is improved; meanwhile, more and more large complex equipment (such as ships, airplanes and the like) are also provided with an intelligent equipment information network, and the intelligent equipment information network is used for monitoring the health state of the equipment, accumulating the use data of the equipment and improving the technical performance of the equipment by acquiring the running state data of the equipment, the use guarantee data of the use operation and the maintenance activities of the equipment and the like through an intelligent handheld terminal, a radio frequency tag, a sensor and the like. Therefore, in an intelligent manufacturing plant or complex equipment, the intelligent handheld terminal plays an important role in data acquisition, and can acquire various types of data as a user goes to a plurality of places and parts. In order to avoid the existence of an information island and the application value of data acquisition, data synchronization between a background server and a plurality of handheld terminals in an intelligent manufacturing factory or complex equipment needs to be realized, and the data consistency is kept.
In an intelligent manufacturing factory or complex equipment which can use a wireless communication technical means, one or more specific wireless communication devices are arranged in a factory Internet of things or an equipment information network, when the working environment is good, the handheld terminal can upload and synchronize collected data to a server background for processing through a wireless network in real time, and the server maintains data synchronization and consistency among all networked online handheld terminals in real time. However, in some complex environments (e.g., poor radio channel quality and severe electromagnetic interference in a part of time and region), wireless network signals may be unstable or even interrupted; or, after the battery of the handheld terminal is exhausted, the situation that real-time data interaction cannot be performed between the handheld terminal and the server also occurs. And after the wireless signal is interrupted and reconnected or the handheld terminal is charged, the handheld terminal exchanges data with the server in real time again.
In some complex environments (such as when a metal wall exists), wireless communication technology cannot be used, or the wireless communication technology is forbidden under the limited conditions of electromagnetic interference and security, the factory internet of things or equipment information network can only use a wired network communication mode. Therefore, in the wired network, the handheld terminal can only interact data with the server in real time in an online condition (i.e., when being connected with the factory internet of things or the interface device of the equipment information network), and the handheld terminal cannot interact data with the server in real time when collecting data everywhere along with the user in an offline condition.
In a complex wireless network or a wired network with a possibility of disconnection and network disconnection of a handheld terminal, after the handheld terminal collects data, once a factory Internet of things or a wireless communication device or a wired interface device equipped with an information network is connected, the data can be actively uploaded and synchronized to a server, and a special data synchronization method is not needed for uplink data. However, for "downlink data", that is, when the server downloads externally input data, data collected by a network or a terminal, data processed by the server, and the like to a plurality of relevant handheld terminals, after the handheld terminals are connected to the network, the server needs to synchronize the downlink data to the relevant handheld terminals, and ensure that all the relevant handheld terminals complete the synchronization of the downlink data, so as to ensure the data consistency between the server and the handheld terminals.
Therefore, a technical solution for solving downlink data synchronization between the smart handheld terminal and the server is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a data synchronization system and a data synchronization method for an intelligent handheld terminal, so as to realize the synchronization and consistency of downlink data between a server and the intelligent handheld terminal.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the intelligent handheld terminal data synchronization system comprises a server and an intelligent handheld terminal which are connected through a network:
the server comprises a management center, a central database and a synchronous resource pool, wherein:
the management center is used for managing the handheld terminals and setting a data acquisition and management area of each intelligent handheld terminal; the intelligent handheld terminal list is also used for managing the central database, and when the central database is updated, the synchronous data which needs to be updated to the synchronous resource pool and the intelligent handheld terminal list which needs to synchronize the synchronous data in the central database are set, and the synchronous data which needs to be updated to the synchronous resource pool are updated to the synchronous resource pool in real time; the intelligent handheld terminal is also used for managing a synchronous resource pool and downloading the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
the central database is used for storing data acquired and uploaded by the intelligent handheld terminal and server processing data;
the synchronous resource pool is used for storing synchronous data to be synchronized to the intelligent handheld terminal;
the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database, wherein:
the acquisition module is used for acquiring data in the data acquisition and management area and temporarily storing the data in the terminal database;
the uploading module is used for uploading the data acquired by the acquisition module to the central database;
the synchronous updating module is used for receiving synchronous data downloaded by the server and updating the synchronous data to the terminal database;
the terminal database is used for storing the data acquired by the acquisition module and the synchronous data synchronized by the synchronous updating module.
On the basis of the technical scheme, the synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, an acquisition and management object list, an update time list and a synchronized handheld terminal list.
On the basis of the technical scheme, the management center is used for setting a synchronous data number for each piece of synchronous data in the synchronous resource pool.
On the basis of the technical scheme, the management center is used for setting a related handheld terminal list of the synchronous data through a data acquisition and management area of the intelligent handheld terminal.
On the basis of the technical scheme, the central database is also used for storing externally input data.
The invention also discloses a data synchronization method of the intelligent handheld terminal, which is used for realizing data synchronization between the server and the intelligent handheld terminal connected with the server through the network:
the server comprises a management center, a central database and a synchronous resource pool; the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database;
the management center sets a data acquisition and management area of each intelligent handheld terminal;
the acquisition module acquires data in a data acquisition and management area and temporarily stores the data in the terminal database;
the uploading module uploads the data acquired by the acquisition module to the central database;
when the central database is updated, the management center sets synchronous data which needs to be synchronized to the synchronous resource pool and the intelligent handheld terminal list of the synchronous data in the central database, and updates the synchronous data which needs to be synchronized to the synchronous resource pool in real time;
when the intelligent handheld terminal is networked, the management center downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
and a synchronous updating module of the intelligent handheld terminal receives synchronous data downloaded by the server and synchronizes the synchronous data to the terminal database.
On the basis of the technical scheme, the synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, an acquisition and management object list, an update time list and a synchronized handheld terminal list.
On the basis of the technical scheme, when the central database is updated, the management center updates the synchronous data to be updated to the synchronous resource pool in real time, and the specific process comprises the following steps:
s101, when the central database is updated, the management center judges whether the synchronous data number of the synchronous data to be updated is in the synchronous resource pool; if yes, the process proceeds to step S102, otherwise, the process proceeds to step S104,
s102, the management center judges whether the acquisition and management object list of the synchronous data to be updated is in the acquisition and management object list of the synchronous data with the same synchronous data number in the synchronous resource pool; if yes, the process proceeds to step S103, otherwise, the process proceeds to step S104;
s103, the management center judges whether the update time list of the synchronous data to be updated is later than the update time list with the same synchronous data number in the synchronous resource pool; if yes, go to step S105, otherwise, go to step S106;
s104, the management center adds the synchronous data to be updated to the synchronous resource pool;
s105, the management center uses the synchronous data to be updated to modify the synchronous data with the same synchronous data number in the synchronous resource pool;
s106, the management center does not need to add and modify the synchronous data to be updated into the synchronous resource pool.
On the basis of the technical scheme, when the intelligent handheld terminal is networked, the management center downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data, and the process comprises the following steps:
s201, when the intelligent handheld terminal is networked, the management center judges whether the networked intelligent handheld terminal is in a handheld terminal list related to the synchronous data or not; if yes, go to step S202, if no, go to step S204;
s202, the management center judges whether the intelligent handheld terminal is in a synchronized handheld terminal list of the synchronous data; if not, go to step S203, if yes, go to step S204;
s203, the management center downloads and synchronizes the synchronous data to the intelligent handheld terminal;
and S204, the management center does not need to carry out data downloading synchronization on the intelligent handheld terminal.
On the basis of the technical scheme, after the management center downloads and synchronizes the synchronous data to the intelligent handheld terminal, the intelligent handheld terminal is added into a synchronized handheld terminal list of the synchronous data.
And when the related handheld terminal list of the synchronous data is equal to the synchronized handheld terminal list, indicating that the whole synchronization of the synchronous data is completed.
Compared with the prior art, the invention has the advantages that:
the server comprises a management center, a central database and a synchronous resource pool, and the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database. The synchronous resource pool stores synchronous data to be synchronized to the intelligent handheld terminal; the management center is used for setting synchronous data which need to be updated to the synchronous resource pool in the central database and an intelligent handheld terminal list which needs to synchronize the synchronous data. After the intelligent handheld terminals are networked, the management center of the server downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminals needing to synchronize the synchronous data, so that the synchronization and consistency of the downlink data between the server and the intelligent handheld terminals are realized, the existence of information islands in intelligent manufacturing factories and complex equipment is avoided, and the application values of data acquisition, fusion processing, intelligent monitoring, mining analysis, optimization improvement and the like are realized.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent handheld terminal data synchronization system in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a synchronization resource pool updating process of a data synchronization method for an intelligent handheld terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a synchronous data downloading flow of the data synchronization method for the intelligent handheld terminal in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides an intelligent handheld terminal data synchronization system, including a server and an intelligent handheld terminal through a network:
the server comprises a management center, a central database and a synchronous resource pool, wherein:
the management center is used for managing the handheld terminals and setting a data acquisition and management area of each intelligent handheld terminal; the intelligent handheld terminal list is also used for managing a central database, when the central database is updated, synchronous data which need to be updated to the synchronous resource pool and the intelligent handheld terminal list which needs to synchronize the synchronous data in the central database are set, and the synchronous data which need to be updated to the synchronous resource pool are updated to the synchronous resource pool in real time; the intelligent handheld terminal is also used for managing a synchronous resource pool and downloading synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
the central database is used for storing data acquired and uploaded by the intelligent handheld terminal and server processing data; the central database is also used for storing data input from outside.
The synchronous resource pool is used for storing synchronous data to be synchronized to the intelligent handheld terminal;
the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database, wherein:
the acquisition module is used for acquiring data in the data acquisition and management area and temporarily storing the data in a terminal database;
the uploading module is used for uploading the data acquired by the acquisition module to a central database;
the synchronous updating module is used for receiving synchronous data downloaded by the server and updating the synchronous data to a terminal database;
and the terminal database is used for storing the data acquired by the acquisition module and the synchronous data synchronized by the synchronous updating module. The server comprises a management center, a central database and a synchronous resource pool, and the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database. The synchronous resource pool stores synchronous data to be synchronized to the intelligent handheld terminal; the management center is used for setting synchronous data which need to be updated to the synchronous resource pool in the central database and an intelligent handheld terminal list which needs to synchronize the synchronous data. After the intelligent handheld terminal is networked, the management center of the server downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data, and synchronization and consistency of downlink data between the server and the intelligent handheld terminal are achieved.
The management center identifies each part of synchronous data in the synchronous resource pool one by using a unique number (Rid), wherein the number Rid of the synchronous data can be determined by a database table and the area and range of data acquisition and management of the intelligent handheld terminal.
The management center identifies each intelligent handheld terminal one by using a unique number (Mid), and the number Mid of the intelligent handheld terminal can be determined by a data communication interface of the intelligent handheld terminal, such as an Ethernet MAC address, a USB unique identification number and the like. Through the area and range of data acquisition and management of the intelligent handheld terminal, the association relationship between the intelligent handheld terminal and the data resources can be determined.
The synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, a collection and management object list, an update time list and a synchronized handheld terminal list. And the management center sets a related handheld terminal list of the synchronous data through the data acquisition and management area of the intelligent handheld terminal.
For example, P for synchronizing data in a synchronization resource pooliRepresents:
Pi(Ri,{M0i},{Obji},{Datai},{ti},{UMi}), wherein:
Rinumbering for synchronous data, { M0iIs a related handheld terminal list, Datai{ Obj } is a list of data information to be synchronized, where there may be one or more data information to be synchronizediT is the list of objects for collecting and managing the dataiIs to update the time list, { UMiAnd the terminal is a synchronized handheld terminal list. The index i represents the ith sync data if
No intelligent hand-held terminal synchronizes the data information, if UMi＝{M0iAnd if the data information is synchronized by all the related intelligent handheld terminals, the data information is synchronized.
The embodiment of the invention also discloses a data synchronization method of the intelligent handheld terminal, which is used for realizing data synchronization between the server and the intelligent handheld terminal connected with the server through the network:
the server comprises a management center, a center database and a synchronous resource pool; the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database;
the management center sets a data acquisition and management area of each intelligent handheld terminal;
the acquisition module acquires data in the data acquisition and management area and temporarily stores the data in a terminal database;
the uploading module uploads the data acquired by the acquisition module to a central database;
when the central database is updated, the management center sets synchronous data which need to be updated to the synchronous resource pool and an intelligent handheld terminal list which needs to synchronize the data in the central database, and updates the synchronous data which need to be updated to the synchronous resource pool in real time;
when the intelligent handheld terminal is networked, the management center downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
and a synchronous updating module of the intelligent handheld terminal receives synchronous data downloaded by the server and updates the synchronous data to a terminal database.
The synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, a collection and management object list, an update time list and a synchronized handheld terminal list. The management center is used for setting a related handheld terminal list of synchronous data through the data acquisition and management area of the intelligent handheld terminal.
For example, P for synchronizing data in a synchronization resource pooliRepresents:
Pi(Ri,{M0i},{Obji},{Datai},{ti},{UMi}), wherein:
Rinumbering for synchronous data, { M0iIs a related handheld terminal list, Datai{ Obj } is a list of data information to be synchronized, where there may be one or more data information to be synchronizediT is the list of objects for collecting and managing the dataiIs to update the time list, { UMiAnd the terminal is a synchronized handheld terminal list. The index i represents the ith sync data if
No intelligent hand-held terminal synchronizes the data information, if UMi＝{M0iAnd if the data information is synchronized by all the related intelligent handheld terminals, the data information is synchronized.
Referring to fig. 2, when the central database is updated, the management center synchronizes the synchronization data to be synchronized to the synchronization resource pool in real time, and the specific process includes:
s101, when a central database is updated, a management center judges whether a synchronous data number of synchronous data to be updated is in a synchronous resource pool; if yes, the process proceeds to step S102, otherwise, the process proceeds to step S104,
s102, the management center judges whether the acquisition and management object list of the synchronous data to be updated is in the acquisition and management object list of the synchronous data with the same synchronous data number in the synchronous resource pool; if yes, the process proceeds to step S103, otherwise, the process proceeds to step S104;
s103, the management center judges whether the update time list of the synchronous data to be updated is later than the update time list with the same synchronous data number in the synchronous resource pool; if yes, go to step S105, otherwise, go to step S106;
s104, the management center adds the synchronous data to be updated into a synchronous resource pool;
s105, the management center uses the synchronous data to be updated to modify the synchronous data with the same synchronous data number in the synchronous resource pool;
s106, the management center does not need to add and modify the synchronous data to be updated into the synchronous resource pool.
Suppose the Data information to be updated is DatajThe synchronous data number of which is RjThe list of related handheld terminals is { M0jThe acquisition and management object of the data information is ObjjThe update time is tjThe synchronized hand-held terminal is integrated into UMj. For convenience, the data resource to be updated is recorded as a composition form P of the synchronization poolj(Rj,{M0j},{Objj},{Dataj},{tj},{UMj})。
Specifically, the process shown in fig. 2 is as follows:
1) firstly, the synchronous data number R of the resource to be updated is judgedjWhether maintenance has been performed in the server's pool of synchronized resources. If resource R is to be updatedjNot in the synchronous resource pool of the server, i.e.
Then the resource is completely new and P can be usedj(Rj,{M0j},{Objj},{Dataj},{tj},{UMj}) to the isochronous resource pool.
2) If resource R is to be updatedjAlready in the synchronous resource pool of the server, i.e. Rj∈{Ri} (can order Rj＝Ri) Then, it is necessary to determine whether the data collection and management object list has related data information in the list { ObjiIn (c) }. If not, then
Then the Data information DatajIs added to RiBelonging to the synchronous resource pool. Let { Obji'}＝{Obji}+{ObjjLet { Data }i'}＝{Datai}+{DatajLet { t } bei'}＝{ti}+{tjInstruction { UM }i'}＝{UMi}+{UMjP can be usedi(Ri,{M0i},{Obji'},{Datai'},{ti'},{UMi' }) updating the corresponding data resources of the isochronous resource pool.
3) If the collection of the resource to be updated and the management object list have the related data information in the list { ObjiIn (i), i.e. Objj∈{Obji} (may order Objj＝Obji) It is also necessary to determine the update time t of the data informationjWhether or not to be later than ti. If notI.e. tj≤tiThen the time of the Data information is outdated and the Data resource Data can be discardedjAnd the resource pool is not required to be added or modified.
4) If the update time t of the data informationjLater than tiI.e. tj＞tiCan use Pi(Ri,{M0i},{Obji},{Dataj},{tj},{UMj}) of the resource pool, and updating corresponding data information and time of the synchronous resource pool.
Referring to fig. 3, when the intelligent handheld terminal is networked, the management center downloads the synchronization data in the synchronization resource pool to the intelligent handheld terminal that needs to synchronize the synchronization data, and the process includes:
s201, when the intelligent handheld terminal is networked, the management center judges whether the networked intelligent handheld terminal is in a handheld terminal list related to synchronous data or not; if yes, go to step S202, if no, go to step S204;
s202, the management center judges whether the intelligent handheld terminal is in a synchronized handheld terminal list of the synchronous data; if not, go to step S203, if yes, go to step S204;
s203, the management center downloads the synchronous data to the intelligent handheld terminal; after the management center downloads the synchronous data to the intelligent handheld terminal, adding the intelligent handheld terminal into a synchronous handheld terminal list of the synchronous data; when the related handheld terminal list of the synchronous data is equal to the synchronized handheld terminal list, indicating that the whole synchronization of the synchronous data is completed;
and S204, the management center does not need to carry out data downloading synchronization on the intelligent handheld terminal.
Specifically, the above process is as follows:
1) suppose that a certain intelligent handheld terminal is connected to a network, and the number of the intelligent handheld terminal is marked as Mj. The intelligent handheld terminal actively informs the server of the information of the online network, or the server can poll and detect the information of the online network of the intelligent handheld terminal.
2) The server management center firstly judges the intelligent handheld stateTerminal MjWhether to synchronize data P with in a synchronization resource pooli(Ri,{M0i},{Obji},{Datai},{ti},{UMi}). If not, then
Then the server does not need to download and synchronize the data to the intelligent handheld terminal Mj。
3) If the intelligent hand-held terminal MjWith the synchronization data R in the synchronization resource pooliIn connection with, i.e. Mj∈{M0iSecondly, the intelligent handheld terminal M needs to be judgedjWhether or not the Data information Data has been synchronizedi. If so, namely Mj∈UMiThen the server does not need to download and synchronize the data to the intelligent handheld terminal Mj。
4) If the intelligent hand-held terminal MjUnsynchronized Data information DataiI.e. by
The synchronous Data can be transmitted from the serveriDownloading and synchronizing to intelligent handheld terminal Mj。
5) Next, the Data information DataiM should be added to the corresponding synchronized handheld terminal listjI.e. UMi'＝UMi+{MjAnd recording the list of the synchronized handheld terminals as UMi'。
6) Data information Data also needs to be judgediWhether synchronization is complete. If so, UMi'＝{M0iThen the Data information Data can be discarded from the isochronous resource pooli。
7) Finally, the synchronous resource R needs to be judgediWhether synchronization is complete. If so, namely
The isochronous resource P may be discarded from the isochronous resource pooli(Ri,{M0i},{Obji},{Datai},{ti},{UMi})。
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. A data synchronization method of an intelligent handheld terminal is used for realizing data synchronization between a server and the intelligent handheld terminal connected with the server through a network, and is characterized in that:
the server comprises a management center, a central database and a synchronous resource pool; the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database;
the management center sets a data acquisition and management area of each intelligent handheld terminal;
the acquisition module acquires data in a data acquisition and management area and temporarily stores the data in the terminal database;
the uploading module uploads the data acquired by the acquisition module to the central database;
when the central database is updated, the management center sets synchronous data which needs to be synchronized to the synchronous resource pool and the intelligent handheld terminal list of the synchronous data in the central database, and updates the synchronous data which needs to be synchronized to the synchronous resource pool in real time;
when the intelligent handheld terminal is networked, the management center downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
a synchronous updating module of the intelligent handheld terminal receives synchronous data downloaded by the server and synchronizes the synchronous data to the terminal database;
the synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, an acquisition and management object list, an update time list and a synchronized handheld terminal list;
when the intelligent handheld terminal is networked, the management center downloads the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data, and the process comprises the following steps:
s201, when the intelligent handheld terminal is networked, the management center judges whether the networked intelligent handheld terminal is in a handheld terminal list related to the synchronous data or not; if yes, go to step S202, if no, go to step S204;
s202, the management center judges whether the intelligent handheld terminal is in a synchronized handheld terminal list of the synchronous data; if not, go to step S203, if yes, go to step S204;
s203, the management center downloads and synchronizes the synchronous data to the intelligent handheld terminal;
s204, the management center does not need to carry out data downloading synchronization on the intelligent handheld terminal;
after the management center downloads and synchronizes the synchronous data to the intelligent handheld terminal, adding the intelligent handheld terminal into a synchronized handheld terminal list of the synchronous data;
and when the related handheld terminal list of the synchronous data is equal to the synchronized handheld terminal list, indicating that the whole synchronization of the synchronous data is completed.
2. The intelligent handheld terminal data synchronization method of claim 1, characterized in that: when the central database is updated, the management center updates the synchronous data to be updated to the synchronous resource pool in real time, and the specific process comprises the following steps:
s101, when the central database is updated, the management center judges whether the synchronous data number of the synchronous data to be updated is in the synchronous resource pool; if yes, the process proceeds to step S102, otherwise, the process proceeds to step S104,
s102, the management center judges whether the acquisition and management object list of the synchronous data to be updated is in the acquisition and management object list of the synchronous data with the same synchronous data number in the synchronous resource pool; if yes, the process proceeds to step S103, otherwise, the process proceeds to step S104;
s103, the management center judges whether the update time list of the synchronous data to be updated is later than the update time list with the same synchronous data number in the synchronous resource pool; if yes, go to step S105, otherwise, go to step S106;
s104, the management center adds the synchronous data to be updated to the synchronous resource pool;
s105, the management center uses the synchronous data to be updated to modify the synchronous data with the same synchronous data number in the synchronous resource pool;
s106, the management center does not need to add and modify the synchronous data to be updated into the synchronous resource pool.
3. An intelligent handheld terminal data synchronization system adopting the intelligent handheld terminal data synchronization method according to claim 1, characterized in that: including server and the handheld terminal of intelligence through network connection:
the server comprises a management center, a central database and a synchronous resource pool, wherein:
the management center is used for managing the handheld terminals and setting a data acquisition and management area of each intelligent handheld terminal; the intelligent handheld terminal list is also used for managing the central database, and when the central database is updated, the synchronous data which needs to be updated to the synchronous resource pool and the intelligent handheld terminal list which needs to synchronize the synchronous data in the central database are set, and the synchronous data which needs to be updated to the synchronous resource pool are updated to the synchronous resource pool in real time; the intelligent handheld terminal is also used for managing a synchronous resource pool and downloading the synchronous data in the synchronous resource pool to the intelligent handheld terminal needing to synchronize the synchronous data;
the central database is used for storing data acquired and uploaded by the intelligent handheld terminal and server processing data;
the synchronous resource pool is used for storing synchronous data to be synchronized to the intelligent handheld terminal;
the intelligent handheld terminal comprises an acquisition module, an uploading module, a synchronous updating module and a terminal database, wherein:
the acquisition module is used for acquiring data in the data acquisition and management area and temporarily storing the data in the terminal database;
the uploading module is used for uploading the data acquired by the acquisition module to the central database;
the synchronous updating module is used for receiving synchronous data downloaded by the server and updating the synchronous data to the terminal database;
the terminal database is used for storing the data acquired by the acquisition module and the synchronous data synchronized by the synchronous updating module.
4. The intelligent handheld terminal data synchronization system of claim 3, wherein: the synchronous data in the synchronous resource pool comprises a synchronous data number, a related handheld terminal list, a data information list to be synchronized, an acquisition and management object list, an update time list and a synchronized handheld terminal list.
5. The intelligent handheld terminal data synchronization system of claim 3, wherein: and the management center is used for setting a synchronous data number for each piece of synchronous data in the synchronous resource pool.
6. The intelligent handheld terminal data synchronization system of claim 3, wherein: and the management center is used for setting a related handheld terminal list of the synchronous data through the data acquisition and management area of the intelligent handheld terminal.
7. The intelligent handheld terminal data synchronization system of claim 3, wherein: the central database is also used for storing externally input data.
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| CN112383601A (en) * | 2020-11-06 | 2021-02-19 | 江苏恒澄交科信息科技股份有限公司 | Ship tail gas data cloud synchronization method and system based on database index marks |
| CN112905695B (en) * | 2021-01-29 | 2022-04-08 | 北京城建勘测设计研究院有限责任公司 | Auxiliary reconnaissance design system based on data synchronization service |
| CN113505173B (en) * | 2021-07-08 | 2024-03-19 | 上海卓钢链科技有限公司 | Data acquisition synchronization system and synchronization method |
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| CN104077905A (en) * | 2014-06-04 | 2014-10-01 | 刘芬 | System and method for automatically collecting positions of terminal nodes of internet of things |
| CN104113565A (en) * | 2013-04-18 | 2014-10-22 | 鸿富锦精密工业（深圳）有限公司 | Data interaction method and system |
| CN106453541A (en) * | 2016-09-30 | 2017-02-22 | 厦门中控生物识别信息技术有限公司 | Data synchronization method, server and data synchronization system |
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| CN104113565A (en) * | 2013-04-18 | 2014-10-22 | 鸿富锦精密工业（深圳）有限公司 | Data interaction method and system |
| CN104077905A (en) * | 2014-06-04 | 2014-10-01 | 刘芬 | System and method for automatically collecting positions of terminal nodes of internet of things |
| CN106453541A (en) * | 2016-09-30 | 2017-02-22 | 厦门中控生物识别信息技术有限公司 | Data synchronization method, server and data synchronization system |
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