JP2003044262A - Data distribution system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data distribution system improving the convenience of a user. SOLUTION: The data distribution system is provided with a data gathering station 3 gathering dynamic data such as a stock price, an exchange rate and a retail price which can fluctuate with the lapse of time, a base station 1 working and distributing the dynamic data transferred from the data gathering station 3 and a communication terminal 2 receiving the dynamic data from the base station 1 through a communication network NW1. The base station 1 is provided with a rule base processing part 11 selecting a rule base to be applied to the fluctuation characteristics of the dynamic data stored in a database 10 and determining a form to perform distribution to the communication terminal 2 on the basis of the selected rule base. Also, the communication terminal 2 is provided with a rule base processing part 31 calculating the characteristics of the data distributed from the base station 1, selecting the rule base to be applied to the characteristics and determining the form to perform display at a WWW browser 30 on the basis of the rule base.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data distribution system for distributing time-varying dynamic data via a network.

[0002]

2. Description of the Related Art In wide area networks such as the Internet, dynamic data such as stock prices, exchange rates, and retail prices, which change from moment to moment, are aggregated and processed into image data, and the image data is transmitted to an unspecified number of communication terminals. There is a data distribution system for distribution. A user can access the data distribution system using client software such as a WWW (World Wide Web) browser incorporated in a communication terminal, receive the image data, and browse the image data.

FIG. 6 is a schematic diagram showing an example of such a data distribution system. The base station 102 collects dynamic data D2 such as stock prices and exchange rates and input data D1 input from the terminal 105 from the information collecting station 101 via the communication network NW1 in real time. Also the base station 10
2 processes the dynamic data D2 and the input data D1 into modules such as image data embedded in a web page. On the other hand, the user activates client software such as a WWW browser incorporated in the communication terminal 103 to activate the communication network NW such as the Internet.
A distribution request RQT is issued to the base station 101 via the No. 2. The base station 101 delivers the generated web page to the communication terminal 103 in response to the delivery request RQT. This allows
A web page obtained by processing the dynamic data is displayed on the monitor 104 connected to the communication terminal 103.

Since the dynamic data D2 changes in real time, the content of the web page distributed from the base station 102 is updated at any time. The WWW browser of the communication terminal 103 can acquire the latest information by reloading (reloading) the web page that is updated regularly. Also,
There is also a system in which the base station 102 sends a trigger to the communication terminal 103 every time the web page is updated, and the WWW browser of the communication terminal 103 receives the trigger to reload the web page and automatically obtain the latest information. However, the communication terminal 103 needs to incorporate software for expanding the function of the WWW browser.

[0005]

However, in the conventional data distribution system, the WWW browser on the side of the communication terminal 103 reloads the web page and updates the web page and all the web pages embedded in the web page. Inefficient because it requires downloading modules and. Therefore, there is also a system in which only difference information between before and after update is transmitted to the communication terminal 103, the latest module is generated on the communication terminal 103 side based on the difference information, and the module is drawn by a WWW browser. It can be realized relatively easily. To draw the latest module, it is necessary to delete the module already displayed in the WWW browser.
A special extension function may be added to the W browser. However, such a conventional extended function cannot perform fine display control and cannot satisfy user's convenience.

[0006] Therefore, the problem to be solved by the present invention is to provide a data distribution system which can improve the convenience of the user.

[0007]

In order to solve the above problems, the invention according to claim 1 is a data distribution system for distributing data from a base station to a communication terminal via a network, wherein the base station comprises: A rule for calculating a fluctuation characteristic of dynamic data that can fluctuate over time, selecting a rule base to be applied to the fluctuation characteristic, and determining a delivery format of data to the communication terminal based on the selected rule base. A base processing unit; and a transmission unit that distributes data according to the distribution format to the communication terminal, wherein the communication terminal displays an image of the data distributed via the network, and The characteristic of the data delivered from the transmission unit of the base station is calculated, a rule base to be applied to the characteristic is selected, and the image table is selected based on the selected rule base. A second rule base processing unit for determining the display format of the unit and is characterized in that it comprises.

The invention according to claim 2 is the data distribution system according to claim 1, wherein the transmitting unit generates processed data obtained by processing the dynamic data according to the distribution format and distributes the processed data to the communication terminal. The image display means of the communication terminal displays the received processed data as an image.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the data distribution system described above, the transmission unit distributes to the communication terminal a file that adds a dynamic element to a display image of the image display unit according to the distribution format.

The invention according to claim 4 is the data distribution system according to any one of claims 1 to 3, wherein the rule-based processing unit on the base station side is configured to detect fluctuations in the dynamic data. It has a rule base for switching the distribution format between when the distribution is small and when the dynamic data changes greatly.

The invention according to claim 5 is the data distribution system according to any one of claims 1 to 4, wherein the base station charges according to the rule base applied by the rule base processing unit. The accounting processing unit for executing the processing is provided.

The invention according to claim 6 is the data distribution system according to any one of claims 1 to 5, wherein the communication terminal receives the image data distributed from the transmitter of the base station. The second rule-based processing unit handles the recognition result output from the image recognition processing unit as a characteristic of the image data.

[0013]

1 is a schematic configuration diagram showing a data distribution system according to an embodiment of the present invention. This data distribution system includes a data collection station 3 that collects dynamic data such as stock prices, exchange rates, and retail prices that can fluctuate over time, and dynamic data transferred from the data collection station 3 such as image data. Base station 1 to process and distribute
And a communication terminal 2 that receives the processed dynamic data from the base station 1 via the communication network NW1.

The base station 1 is an IP (Internet Protocol).
based on HTTP (HyperTextTransfer Protoco)
l) and WWW (World Wide) having a server function of FTP (File Transfer Protocol)
Web) The transceiver 15 is provided. The WWW transmitting / receiving unit 15 may have a function of encrypting and decrypting a packet (datagram) transmitted / received to / from the communication terminal 2.

The communication terminal 2 may be any communication device capable of bidirectional IP communication with the WWW transmitting / receiving unit 15, and may be, for example, a network-compatible personal computer or set top box (home communication terminal). , Mobile phones, PHS (Personal Handyphone Syst)
em), PDA (personal digital assistant); Personal Digital Assis
tants). This communication terminal 2 is equipped with a WWW browser (image display means) 30, and the user of the communication terminal 2 activates the WWW browser 30 and operates it.
Establishes a connection with the WW transmitter / receiver 15, and HTML or XML
Web pages written in languages such as (eXtensible Markup Language) can be downloaded and viewed. See also W
The WW browser 30 can also download modules such as image data and music data embedded in the web page, display the image data, and reproduce the music data.

When the user of the communication terminal 2 first operates the WWW browser 30 to access the base station 1, the user is authenticated by the user authentication processing unit (server) 16. That is, when the WWW transmitting / receiving unit 15 receives the web page transmission request RQT from the WWW browser 30, the WWW transmitting / receiving unit 15 transmits the authentication web page W1 requesting the input of the authentication information AD such as the ID (identifier) and the password. Then, the user of the communication terminal 2 inputs the authentication information AD into the authentication web page W1 to input the authentication information AD into the WWW transceiver unit 1.
Send to 5. The WWW transmitter / receiver 15 uses the authentication information A
D is transferred to the user authentication processing unit 16, and then the user authentication processing unit 16 executes a verification process of whether or not the authentication information AD is registered and returns the verification result to the WWW transmission / reception unit 15. When the collation result indicates that the authentication of the authentication information AD has failed, the WWW transmitting / receiving unit 15 transmits that fact to the WWW browser 30. On the display screen of the WWW browser 30, the fact that the authentication has failed is displayed. On the other hand, when the collation result indicates that the authentication information AD has been authenticated, the WWW transmitting / receiving unit 15 notifies the WWW browser 30 that data distribution is permitted.

The authentication information AD may be composed of an arbitrary character string. For example, mobile phones and PHS
, Etc., to the memory of the mobile communication terminal uniquely assigned from the mobile communication network to which the mobile communication terminal belongs.
D (subscriber ID), registration data, etc. are written. When the communication terminal 2 is a mobile communication terminal of that kind, it is possible to use the subscriber ID and its registration data as the authentication information AD for user authentication processing. Further, the IP address of the communication terminal 2 registered in the address management server (not shown) on the network NW1 may be used for the user authentication process as the authentication information AD.

In the base station 1, the dynamic data transferred from the data collection station 3 in real time is sequentially stored in the database 10. Data distribution unit (server) 18
Has a function of acquiring dynamic data from the database 10 according to the distribution format TC input from the calculation processing unit 14, processing the dynamic data into image data, and distributing the data to the communication terminal 2. The delivery format TC indicates a method for processing dynamic data. For example, if the dynamic data is numerical data that changes from moment to moment, it can be instructed to graph the numerical data in the delivery format TC. The processed data SD is distributed to the communication terminal 2 and displayed on the WWW browser 30. FIG. 2 is a schematic diagram showing an example of the processed data SD. As shown in FIG. 2, numerical data such as exchange rates and retail prices are bar graphs 42 and line graphs 43 that are graphs of numerical values that fluctuate along the time axis (t).
Has been processed into. In the illustrated example, the numerical data is also processed in the pie chart 41. Data distribution unit 1
8 transmits the bar graph 42, the line graph 43, and the pie graph 41 to the communication terminal 2 in the form of image data. The WWW browser 30 of the communication terminal 2 displays the graphs 41 to 43 on the browser display screen 40 according to the form of the web page transmitted from the WWW transmitting / receiving unit 15.

The data collection station 3 outputs an update trigger Tr to the WWW transmitter / receiver 15 every time the dynamic data supplied to the base station 1 changes. Upon receiving the update trigger Tr, the WWW transmitter / receiver 15 instructs the data distributor 18 and the additional information transmitter 17 to distribute the data.

The dynamic data stored in the database 10 is also fetched by the rule base processing unit 11. The rule base processing unit 11 includes a calculation processing unit 14, a rule base storage unit 12 that stores a rule base, and a working memory 13. The rule base is a set of production rules including a condition part and an execution part that is executed when the condition part is satisfied. The calculation processing unit 14 calculates the variation characteristics such as the numerical range, the rate of change, the statistic (standard deviation, variance value, etc.) of the captured dynamic data, and stores it in the working memory 13. In this embodiment, numerical data is mainly assumed as dynamic data, but image data such as still images and moving images, or sound data such as music and voice may be used. When the dynamic data is image data, the variation characteristics include a histogram of the brightness and hue of the image data, their average deviation value or variance value, or difference data between still images (frames). Next, the calculation processing unit 14
Collates the variation characteristics stored in the working memory 13 with the condition parts of all rule bases stored in the rule base storage unit 12 to search for a set of executable production rules. If there are no executable production rules, the process ends, but if there are multiple executable production rules, a conflicting state of the production rules occurs, so the calculation processing unit 14
Select one production rule and resolve the race condition. Then, the calculation processing unit 14 executes the execution unit of the selected production rule.

In this way, the calculation processing unit 14 selects the production / output selected based on the variation characteristics of the dynamic data.
The execution unit of the rule determines the delivery format TC. The data distribution unit 18 generates the processed data SD according to the distribution format TC and distributes it to the communication terminal 2. For example, when paying attention to the stock price of a particular stock as dynamic data and the stock price is likely to drop significantly, the calculation processing unit 14 has a condition section that defines a condition for the stock price to drop.
The rules will be applied and the delivery format TC will be determined.
The delivery format TC is, for example, to insert a message to the processed data SD displayed on the WWW browser 30 to the effect that there is a high risk that the stock price of the stock will fall sharply, or to the processed data SD with an arrow as shown in FIG. 44 is inserted. It is also possible to change the display area of a part of the bar graph 42 or the pie chart 41 shown in FIG. 2 or change the hue or brightness of the display image shown in FIG.

On the other hand, the additional information transmitting unit (server) 17 is
According to the delivery format TC instructed by the calculation processing unit 14,
It has a function of transmitting to the communication terminal 2 the additional data PD that adds a dynamic element to the display image of the WWW browser 30. The distribution format TC at this time indicates the type of the additional data PD. The additional data PD is JAV
Examples include small application programs such as A (registered trademark) applets, script files, parameters, and icon images. This makes it possible to display a laughing icon image, a crying icon image, or an animated animal on the display screen of the WWW browser 30 on the communication terminal 2 side. By transmitting such additional data PD, a wide variety of images can be displayed on the WWW browser 30 of the communication terminal 2, thus improving user convenience.

Further, the additional information transmitting section 17 uses the history of the additional data PD transmitted to the communication terminal 2 as the utilization information recording section 1
It is recorded in 9. As a result, the additional information transmission unit 17
Even if the calculation processing unit 14 receives an instruction of the delivery format TC to send the already transmitted additional data PD to the communication terminal 2, the additional data PD does not have to be duplicately transmitted.

When the rule-based processing section 11 determines that the calculation processing section 14 does not have an executable production rule, it requests the communication terminal 2 for the delivery format TC without terminating the processing. May be. The user of the communication terminal 2 can manually specify the delivery format TC by operating the user interface 32.

On the other hand, the communication terminal 2 is provided with a rule base processing section 31, an additional information generating section 37 and a user interface 32 in addition to the WWW browser 30 described above. The additional data PD and the processed data SD transmitted from the base station 1 are captured by the WWW browser 30 and displayed as an image, and also captured by the rule-based processing unit 31. As shown in FIG. 3, the rule base processing unit 31 of the communication terminal 2 includes a calculation processing unit 35 and a rule base storage unit 33 that have substantially the same functions as the rule base processing unit 11 of the base station 1.
And a working memory 34.

The rule base storage unit 33 stores various production rules. The user can operate the user interface 32 to add, modify and delete production rules. The calculation processing unit 35 calculates the characteristics of the additional data PD and the processed data SD that have been taken in and stores them in the working memory 34. The calculation processing unit 35 also collates the characteristics stored in the working memory 34 with the condition units of all rule bases stored in the rule base storage unit 33 to search for a set of executable production rules. If there are no executable production rules, the process ends, but if there are multiple executable production rules, a race condition occurs, so the calculation processing unit 35 selects one production rule and Resolve the race condition. Then, the calculation processing unit 35 executes the execution unit of the selected production rule, and the WWW browser 3
The display format of 0 is controlled, or the additional information generation unit 37 is instructed to generate an application program, a script file, an icon image, etc.
It is displayed on the WW browser 30.

As described above, the rule-based processing unit 31 determines and controls the display format of the WWW browser 30 according to the characteristics of the processed data SD and the additional data PD. The display format can be set for each communication terminal according to the production rule stored in the rule base storage unit 33, so that the expression format can be set according to the preference and purpose of the user of the communication terminal 2. Therefore, the convenience for the user is improved.

The data distribution system according to the present embodiment includes rule-based processing units 11 and 31 on the base station 1 side and the communication terminal 2 side, respectively. Therefore, as shown in FIG. 3, from the rule base processing unit 31 on the communication terminal 2 side,
The control data CD for controlling the delivery format TC is issued to the rule base processing unit 11 on the base station 1 side, and the rule base storage unit 1
The second production rule may be rewritten. Thereby, from the communication terminal 2 to the communication terminal 2
The processed data SD and the additional data PD to be distributed to the base station 1 can be selected and the preferences and requests of the user of the communication terminal 2 can be selected.
Can be fed back to. The feedback may also be associated with the user interface 32. For example, when the user selects the rabbit icon displayed on the display screen of the communication terminal 2 using the user interface 32, the predetermined data is sent on the condition that the dynamic data fluctuates by 5%. The production rule to be executed can be registered in the rule base storage unit 12.

Next, the charging processing unit (server) 2 shown in FIG.
0 executes the charging process according to the production rule applied by the calculation processing unit 14 of the rule-based processing unit 11. For example, when the dynamic data is the stock price, the amount of charge for the user is determined according to the importance of the stock price prediction information. The charging information MD including such a charging amount is W
The communication terminal 2 is notified via the WW transceiver 15
It is displayed on the W browser 30. This makes it possible to charge according to the value and importance of the applied production rule.

If the processed data SD delivered from the base station 1 to the communication terminal 2 is image data, the processed data SD is subjected to image recognition processing, and the result of the image recognition processing is reflected in the WWW browser 30. Good. Specifically, as shown in FIG. 4, the communication terminal 2 uses the image recognition processing unit 3
6, the image recognition processing unit 36 executes image recognition processing on the processed data SD distributed from the data distribution unit 18, and outputs the recognition result to the rule-based processing unit 31. The rule-based processing unit 31 treats the recognition result as a characteristic of the processed data SD, searches for an executable production rule, determines one production rule, and determines the display format of the WWW browser 30.

The above data distribution system may be used in a form in which data is fed back from the communication terminal 2 to the base station 1 like an auction system. FIG. 5 is a schematic configuration diagram showing a data distribution system used in such a form. The data RD is transmitted from the communication terminals 2, 2, ... To the base station 1, and is stored in the database 10 via the WWW transceiver 15. As described above, the rule-based processing unit 11 uses the database 1
The data RD is fetched from 0, the variation characteristic of the data RD is developed on the working memory 13, and the rule base stored in the rule base storage unit 12 is applied to this variation characteristic.

When the user of the communication terminal 2 uses the user interface 32 such as a mouse or a keyboard, the data RD is transmitted to the base station 1 in conjunction with this, and the contents of the database 10 are updated. Good. For example, when the user moves the mouse quickly on the side of the communication terminal 2, the communication terminal 2 receives the processed data SD and the additional data PD that have largely changed according to the moving speed of the mouse.
2, ... can be delivered. Further, when the user selects the rabbit icon displayed on the display screen of the communication terminal 2 with the operator (mouse / pointer), the processed data SD and the additional data PD change significantly, while they are displayed on the display screen. By selecting the turtle icon with the operator, it is possible to perform processing such that the processed data SD and the additional data PD change slightly.

[0033]

As described above, according to the data delivery system of the first aspect of the present invention, the rule-based processing unit of the base station determines the delivery format of the data according to the variation characteristic of the dynamic data. The second rule-based processing unit of the communication terminal determines the display format of the image display means corresponding to the characteristics of the data distributed from the base station. Since the display format can be set for each communication terminal according to a predetermined rule base, the expression format can be set according to the preference and purpose of the user of the communication terminal. Therefore, the convenience for the user is improved.

According to the second aspect, the dynamic data can be processed into a form that is easy for the user to see and provided to the user, so that the convenience for the user is improved.

According to the third aspect, various kinds of display can be performed by the image display means of the communication terminal, and the convenience for the user is improved.

According to the fourth aspect, when the fluctuation of the dynamic data is large, the type of data distributed to the communication terminal is automatically switched. Therefore, for example, when there is some change in the dynamic data, it is possible to automatically display a line graph or vertical arrows on the display screen of the communication terminal to call the user's attention.

According to claim 5, it becomes possible to charge according to the value and importance of the applied production rule.

According to the sixth aspect, since the rule base can be applied to the image data, the degree of freedom that can be displayed by the image display means is expanded and the convenience of the user is improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a data distribution system according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a display example of processed data of the data distribution system according to the embodiment.

FIG. 3 is a schematic configuration diagram showing a part of a data distribution system according to an embodiment.

FIG. 4 is a schematic configuration diagram showing a modified example of the data distribution system according to the exemplary embodiment.

FIG. 5 is a schematic configuration diagram showing another usage example of the data distribution system according to the embodiment.

FIG. 6 is a schematic diagram showing an example of a conventional data distribution system.

[Explanation of symbols]

1 base station 2 communication terminals 3 data collection stations 10 database 11 Rule Base Processing Unit 15 WWW transceiver 16 User authentication processing section 17 Additional information transmitter 18 Data Distribution Department 19 Usage information recording section 20 Charge processing unit 30 WWW browser 31 Rule Base Processing Unit 32 user interface

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Claims (6)

[Claims] 1. A data distribution system for distributing data from a base station to a communication terminal via a network, wherein the base station calculates a fluctuation characteristic of dynamic data that can fluctuate over time, and the fluctuation characteristic. A rule base processing unit that selects a rule base to be applied to, and determines a distribution format of data to the communication terminal based on the selected rule base, and distributes data according to the distribution format to the communication terminal. A transmitter, wherein the communication terminal calculates the characteristics of the data distributed from the transmitter of the base station by image display means for displaying the data distributed via the network; Select the rule base that should be applied to
A second rule base processing unit that determines a display format of the image display unit based on the selected rule base, the data distribution system. 2. The data distribution system according to claim 1, wherein the transmission unit generates processed data obtained by processing the dynamic data according to the distribution format and distributes the processed data to the communication terminal. The data display system, wherein the image display means displays an image of the received processed data. 3. The data distribution system according to claim 1, wherein the transmission unit is in accordance with the distribution format.
A data distribution system for distributing a file, which adds a dynamic element to a display image of the image display means, to the communication terminal. 4. The data distribution system according to any one of claims 1 to 3, wherein the rule-based processing unit on the side of the base station is configured when the fluctuation of the dynamic data is small and when the dynamic data is small. A data distribution system having a rule base for switching the distribution format depending on when the fluctuation of data is large. 5. The data distribution system according to claim 1, wherein the base station executes a charging process according to a rule base applied by the rule base processing unit. Data distribution system including a unit. 6. The data distribution system according to claim 1, wherein the communication terminal executes an image recognition process on the image data distributed from the transmitter of the base station. And a second rule-based processing unit that handles the recognition result output from the image recognition processing unit as a characteristic of the image data.