JP3786751B2 - Data communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data communication system that periodically communicates information from a center, and more particularly to a data communication system that groups terminals for each communicable time zone.
[0002]
[Prior art]
Today, for example, a communication karaoke system has about 20,000 terminals per data communication center, that is, business stores such as karaoke boxes. A characteristic of the online karaoke system is that the new song information can be obtained quickly, and it is not preferable that the karaoke boxes have a difference in the time when the new song information can be obtained. In other words, a situation in which a new song contained in one karaoke box cannot be sung in another karaoke box is not preferable. Therefore, it is necessary to transmit the new song information to all terminals during the same day, and there is a request to end information communication with all terminals as efficiently as possible.
[0003]
In a conventional data communication system, when data transmission from a data communication center that holds data is necessary, a data transmission request is made from the terminal side when necessary. In this system, when a data transmission request is made from a terminal, the data communication center transmits all the requested data in the requested number. Therefore, the line between the terminal and the data communication center remains connected until all data requested from the terminal is transmitted. In such a system, it is necessary to design a network system in accordance with the usage status of the terminal user. That is, it is necessary to increase the number of communication lines in accordance with the number of terminals in the case where transmission requests are made simultaneously from a plurality of terminals. Therefore, there has been a problem that a large number of communication facilities are required.
[0004]
In order to solve the problem, a data communication system that regularly distributes data has been used. That is, instead of requesting data transmission at an arbitrary time for the convenience of the terminal, the data communication start time is determined in advance for each terminal, for example, xx every day or xx every week on the day of the week. This is a method of calling a terminal set at the time. In this method, the terminal can use a communication line with the center at a predetermined time. By shifting the time for each terminal, it is not necessary to communicate with many terminals at the same time. By doing so, the number of lines simultaneously used is limited to some extent, and communication facilities can be reduced.
[0005]
[Problems to be solved by the invention]
However, for example, the terminal is not able to receive a call due to a situation in which the terminal malfunctions at the set time and communication is not successful, or the terminal is not turned on due to some trouble. If there is a case, the communication call is continued to the terminal wastefully. Continuing a communication call to such a terminal that is not capable of receiving calls may waste the center's communication facilities and hinder communication with other terminals.
[0006]
In addition, there are cases where communication often fails at a set time, such as when the communication line is very congested due to local conditions of the terminal. Then, the center repeated useless communication calls to the terminal, and further, there was a situation in which communication to the terminal was postponed due to time out. Such a continuous situation is not only inconvenient for the terminal, but also wastes time for the entire system. The center wants to avoid repeating unnecessary calls as much as possible.
[0007]
Therefore, the present invention has been made to solve the above-described problems, and provides a data communication system that can reduce the number of useless communication calls as much as possible and can efficiently use the communication equipment of the center. With the goal.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a data communication system according to claim 1 is a data communication system in which data is periodically communicated to a plurality of terminals from a data communication center. the basis, the group control means to group the respective terminal, and a communication control means for communicating data to each terminal that are grouped through the group control unit for each communication time slot, the communication with the terminal It is characterized by having a group changing means for changing the group to which the terminal belongs when it is unsatisfactory .
[0009]
In the data communication system according to the first aspect, the communication processing in each time zone can be made more efficient by grouping a plurality of terminals that should perform data communication from the data communication center for each time zone in which communication is to be performed. . Thereby, when it is necessary to transmit data to a large number of terminals in a short time, the transmission process can be performed efficiently without occupying the communication equipment wastefully.
[0010]
Further, the data communication system according to claim 1, when pre-Symbol communication for the terminal was upset, characterized by having a group changing means for changing the group membership of the terminals. In the data communication system according to the first aspect , when communication is unsuccessful, the communication time zone for the terminal is changed. As a result, it is possible to avoid repeated useless communication calls to the same terminal, and to efficiently use communication equipment.
[0011]
A data communication system according to claim 2 is the data communication system according to claim 1 , wherein the terminal is a communication karaoke terminal, and the data is latest karaoke song data. The data communication system according to claim 2 is data communication in a communication karaoke system. In the communication karaoke system, each data communication center has a large number of communication karaoke terminals, and it is necessary to transmit the latest karaoke song data to all terminals during the same day. Data communication.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a data communication system according to the present invention will be described in detail with reference to the drawings based on embodiments embodying the present invention. First, a schematic configuration of the data communication system according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a schematic configuration of a data communication system. In FIG. 1, the data communication system mainly includes one data communication center 20 and a large number of terminals 23. The data communication center 20 is connected to each terminal 23 by a communication network 21 such as an ISDN communication network or a subscriber telephone network. It is connected.
[0013]
Next, a communication processing apparatus that is a part of the data communication center 20 will be described with reference to FIG. FIG. 2 is a block diagram showing the internal configuration of the communication processing device of the data communication center 20. The communication processing apparatus according to the present embodiment is configured around a control unit 1 that performs overall control, and includes a time measuring unit 2 that obtains the current time and date, a communication control unit 3 that performs communication with a terminal 23, and a terminal. 23 includes a console 4 for displaying the status of 23 and communication status, and a storage unit 5 for storing data. The timing unit 2, the communication control unit 3, the console 4, and the storage unit 5 are each connected to the control unit 1, and the control unit 1 performs overall control.
[0014]
Next, each of the operations 1 to 5 will be described. The control unit 1 has a CPU and a program ROM inside, and performs overall operation control. Further, when the time measuring unit 2 obtains the current time, the control unit 1 determines whether it is time to start communication with each terminal 23. Communication to each terminal is performed from the center side at a predetermined time. In addition, the time measuring unit 2 measures the time after starting communication with each terminal 23. By limiting the total communication time from the start of communication, it is possible to prevent a single terminal 23 from performing communication longer than necessary.
[0015]
The communication control unit 3 communicates with the terminal 23 and transmits data in the storage unit 5 to the terminal 23 through the control unit 1. Further, data such as a terminal state transmitted from the terminal 23 is sent to the control unit 1. The console 4 is used by the administrator of the communication processing device to know the state of the communication processing device and the communication status with the terminal 23. The storage unit 5 is composed of a large-capacity hard disk, and stores digitized music data to be transmitted to each terminal 23 and information such as the communication state of each terminal 23. A terminal table 10 (see FIG. 4) described later is also stored here.
[0016]
Next, the overall operation of the data communication system according to the present embodiment will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the data communication system. When the data communication center 20 starts communication processing, first, in step (hereinafter abbreviated as S) 01, the current time is read from the time measuring unit 2. If the current time is not the correct time, it waits until the correct time, and then reads the terminal number group of the terminal 23 to be communicated in the corresponding time zone from the terminal table 10 (S02).
[0017]
Here, the terminal table 10 showing the relationship between each communication time zone and the terminal number of the terminal group communicating in that time zone will be described with reference to FIG. FIG. 4 is an explanatory diagram schematically showing the contents of the terminal table 10. The time zone 101 indicates each time zone by its start time, and the number of terminals 102 indicates the total number of terminals to be transmitted in that time zone. The terminal information 103 is a list of information regarding each terminal 23 to be transmitted within each time slot according to the transmission order. Although not shown here, the terminal information 103 includes not only the ID number of each terminal 23 but also information related to each terminal 23 such as the installation position of the terminal 23, the telephone number of the communication line, or the previous communication state. It is remembered.
[0018]
Here, the number of terminals 102 is used as follows. Data transmission to one terminal 23 generally takes 5 to 10 minutes. Therefore, there is an upper limit on the number of terminals 23 that can transmit data within one hour, which is each time zone. When the contents of the terminal table 10 are changed, the number of terminals 102 is taken into consideration when checking so as not to exceed the limit.
[0019]
In FIG. 3, for example, it is assumed that the current time is 1:00 in S01. Then, in S02, the terminal numbers of the terminals 23 stored in the column of 1:00 are sequentially read. In the example illustrated in FIG. 4, the number of terminals 102 is <m1>, and the terminal information 103 is <x00110, x00120, x00210,. Subsequently, one piece of information is sequentially extracted from the read terminal information 103 (S03). Then, it is determined whether there is terminal information 103 to be transmitted next, that is, whether there is a terminal 23 that has not yet been transmitted (S04). In the above example, it is determined whether transmission from <x00110> to <x00870> has been completed. If transmission to all the terminals 23 in the group is completed and it is determined that there are no remaining terminals 23 (S04: NO), the process is terminated and waits until the next hour.
[0020]
On the other hand, if it is determined that there is a terminal 23 that has not yet been transmitted (S04: YES), the telephone number of the communication line of the terminal 23 is extracted from the read terminal information 103 and dialed (S05). . Subsequently, it is determined whether the connection is completed (S06). If the communication line and terminal 23 are in good condition and the connection is successful (S06: YES), data transmission is started. That is, first, log information such as the previous data transmission state is received from the terminal 23 (S10). Next, the information to be transmitted to the terminal 23 this time is transmitted in a lump (S11). When the transmission is completed, the communication line is disconnected (S12). Finally, the terminal information 103 such as the last communication date is updated for the terminal 23 that has completed communication.
[0021]
Alternatively, when the connection is unsuccessful in S06 (S06: NO), the number of retries is read from the terminal information of the terminal 23. If you are having trouble even after retrying several times, you should wait a while before processing. For example, retry is set up to 3 times, and the retry is over. Therefore, it is determined from the read retry count whether this terminal 23 is retry over (S07). If it is not a retry over (S07: NO), the terminal information 103 of this terminal 23 is moved to the end of the current terminal group in order to communicate again at the end of this time period (S08), and the next terminal information 103 is read out. (S03).
[0022]
On the other hand, if it is determined that the retry is over (S07: YES), it is better to wait for some time before communicating again. Therefore, the terminal information 103 of this terminal 23 is moved to the head of the next terminal group (S09). At this time, the number of terminals 102 is changed, and the terminal table 10 is updated. Then, the next terminal information 103 is read from the current terminal group (S03), and data transmission is similarly continued until there are no more terminals to communicate with.
[0023]
As described above in detail, in the data communication system according to the present embodiment, all the terminals 23 to be communicated are grouped for each communication time zone as in the terminal table 10, and further, a certain terminal 23 is retried over. In this case, by changing the group to which the terminal 23 belongs, efficient communication processing can be performed without occupying the communication facility due to unnecessary calls.
[0024]
In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning. For example, here, data transmission is possible anytime for 24 hours. However, due to the nature of online karaoke, it may be uncomfortable to communicate during the day. In that case, the communicable time zone can be limited to midnight. In addition, the data to be transmitted is collectively transmitted. However, when there is a large amount of data to be transmitted and the data has priority, the transmission processing may be divided into several times according to the priority. it can.
[0025]
【The invention's effect】
As described above, in the data communication system according to the first aspect, a plurality of terminals that are to perform data communication from the data communication center are grouped for each time zone in which communication is to be performed, thereby improving the efficiency of communication processing in each time zone. can do. Thereby, when it is necessary to transmit data to a large number of terminals in a short time, the transmission process can be performed efficiently without occupying the communication equipment wastefully.
[0026]
Further, when the communication was upset, it changes the communication time band for that terminal. As a result, it is possible to avoid repeated useless communication calls to the same terminal, and to efficiently use communication equipment.
[0027]
The data communication system according to claim 2 is data communication in a communication karaoke system. In the communication karaoke system, each data communication center has a large number of communication karaoke terminals, and it is necessary to transmit the latest karaoke song data to all terminals during the same day. Data communication.
[0028]
As described above, the present invention can provide a data communication system that can reduce the number of useless communication calls as much as possible and can efficiently use the communication equipment of the center.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a data communication system of the present invention.
FIG. 2 is a block diagram showing an internal configuration of a communication processing apparatus according to the present invention.
FIG. 3 is a flowchart showing the operation of the data communication system of the present invention.
FIG. 4 is an explanatory diagram schematically showing the contents of a terminal table.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Control part 2 Time measuring part 3 Communication control part 4 Console 5 Memory | storage part 10 Terminal table 20 Data communication center 23 Terminal

Claims (2)

In a data communication system that periodically communicates data to a plurality of terminals from a data communication center,
Based on the communication time band for performing communication with the respective terminal, and a group control means to group the respective terminals,
Communication control means for communicating data to each terminal grouped via the group control means for each communication time zone ;
A data communication system comprising group changing means for changing a group to which a terminal belongs when communication with the terminal is not successful . The data communication system according to claim 1 , wherein
The terminal is a communication karaoke terminal;
A data communication system, wherein the data is latest karaoke song data.

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