Method and Device for Transmission and Update of Continuous Data Set
First Claim
1. A method for transmission and update of continuous data sets, the method comprising:
- A1. extracting the data set according to a set time interval for the continuous data by a server continuously;
B1. comparing an integral set of the latest data set with that of its previous data set by symbols, and obtaining a variation string;
C1. transforming and compressing the variation string before the variation set is obtained; and
D1. transferring the change set to one or more clients, so that the client updates the data set to the latest one according to its current data set.
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Abstract
A transmission and updating method and the apparatus thereof for consecutive changing data. The method comprising the steps: the server extracts the data set from the consecutive changing data at the predetermined time interval consecutively (101); the server compares the whole set of the latest data set with the whole set of the prior one in the form of symbol to obtain the changing string; vary the changing string to the changing set (102); transmit the changing set to one or more clients (103) so that the clients can update the data set to the latest data set according to the current data set (104). The method of the present invention divides the data set into several symbols, as the symbol is flexible, an item can be divided into multiple symbols, and the data sets are compared with the symbol as a unit to diminish the compared unit, so the byte length of the obtained changing string is reduced, such that the transmission quantity is reduced greatly, the transmission speed is increased and the requirement for bandwidth is reduced.
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Citations
18 Claims
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1. A method for transmission and update of continuous data sets, the method comprising:
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A1. extracting the data set according to a set time interval for the continuous data by a server continuously; B1. comparing an integral set of the latest data set with that of its previous data set by symbols, and obtaining a variation string; C1. transforming and compressing the variation string before the variation set is obtained; and D1. transferring the change set to one or more clients, so that the client updates the data set to the latest one according to its current data set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for transmission and update of continuous data sets, the method comprising:
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A4. extracting the data set according to a set interval for the continuous data by a server continuously, and marking the data set according to the extraction sequence; B4. comparing the integral set of the latest data set with that of its previous data set, and obtains the variation string; C4. transforming, compressing and correspondingly marking the variation string before the variation set is obtained; and D4. transferring the variation set to one or more of the clients, so that the client updates the data set to the latest one according to its current data set, and the latest data set is marked with the same mark with the same data set of the server. - View Dependent Claims (10, 11)
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12. A device for transmission and update of the continuous data sets, the device comprising:
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data set generation unit adapted to generate the data set from the continuous data according to a set time interval; data set compare unit adapted to compare the latest data set Pn with its previous or certain data set Pk by the symbols according to the integral set, and obtains the variation string; variation set generation unit adapted to transform and mark the variation string before forming the variation set Cnk; and variation set sending unit adapted to send the continuous or noncontinuous variation set Cnk to the client. - View Dependent Claims (13)
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14. A device for transmission and update of the continuous data sets, said device comprising a server and a client;
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said server comprising; data set generation unit adapted to generate the data set from the continuous data according to a set time interval; data set compare unit adapted to compare the latest data set Pn with its previous or certain data set Pk by the symbols according to the integral set, and obtains the variation string; variation set generation unit adapted to transform and mark the variation string before forming the variation set Cnk; and variation set sending unit adapted to send the continuous or noncontinuous variation set Cnk to the client; said client comprising; variation set receiving unit adapted to receive the variation set Cnk; variation set decompression unit adapted to decompress the variation set Cnk; and data set update unit adapted to update the current data set Pk to the same latest data set Pn with the server. - View Dependent Claims (15)
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16. A computer-readable medium with a computer-executable program, wherein the program realizes the following functions through execution of the server computer:
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A7. extracting the data set according to a set time interval for the continuous data continuously; B7. comparing the integral set of the latest data set with that of its previous data set by the symbols, and obtaining the variation string; C7. transforming and compressing the variation string before the variation set is obtained; and D7. transferring the variation set to one or more of the clients, so that the client updates the data set to the latest one according to its current data set. - View Dependent Claims (17)
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18. The computer-readable medium with the computer-executable program, wherein the program further realizes the following functions through execution of the client computer:
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A8. judging, when the client receives the latest variation set, whether the client has the data set to which the variation set is according, and execute Step B8 if it does, or execute Step C8 if it does not; B8. updating the data set to the latest one and marking it according to the data set to which the variation set is according and the latest variation set; C8. requesting the server to transfer the corresponding variation set according to the mark of the current data set in the client; and D8. updating the data set in the client to the latest one and makes the mark after receiving the corresponding variation set by the client.
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Specification