JPH09200287A - Center device malfunction prevention method - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To continuously transmit accumulated individual information to an access terminal, receive a service request for the individual information being transmitted, and perform processing for the service request of the individual information. In (1), it is possible to prevent a malfunction due to the fact that the individual information of the service request target transmitted by the access terminal does not match the individual information recognized by the center device due to a time lag or the like, without providing the unreceivable state. A center device (1) determines whether to send a service request to an access terminal (2) when transmission of one piece of individual information is completed when individual information is continuously transmitted to the access terminal (2). That confirmation request is transmitted, and unless either a response from the access terminal 2 to the confirmation request or a service request is received, control is performed not to transmit the next individual information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention determines the object of a service request by continuously transmitting the accumulated individual information to an access terminal and receiving a service request for the individual information being transmitted from the access terminal. The present invention relates to a method for preventing malfunction of a center device that operates on recognized individual information.

Information providing services such as video-on-demand and other various services via networks have begun to be realized, and there is a need for a technology that allows users to receive services with simple operations and without error. There is.

[0003]

2. Description of the Related Art For example, in a system for providing information such as voice information, character information or image information, individual information such as outline information of the information to be provided and menu information is continuously provided to an access terminal at a certain time interval. A system has been proposed in which a center device executes processing for a service request regarding individual information transmitted at that time when a service request is transmitted from the access terminal.

Conventionally, regarding such information transmitted and received between the center apparatus and the access terminal, there is a time lag between the time when the center apparatus transmits and the time when the access terminal receives the information, or the center apparatus is on the access terminal side. When the status cannot be grasped, in the processing of the service request performed while the access terminal side is receiving the individual information, it becomes the target of the service request transmitted by the access terminal and the service request received by the center device. Since it is necessary to prevent the individual information from not matching, there is a means of not accepting a service request from the access terminal for a certain period of time according to the time lag at the beginning of each individual information that is continuously transmitted.

FIG. 3 is a diagram for explaining an example of a procedure between the center device and the access terminal according to the conventional malfunction prevention method. In the figure, 31 is a center device that performs transmission of individual information and processing for a service request, 32 is an access terminal that receives individual information and sends a service request to the center device 31 as necessary, and 33 is transmitted to the access terminal 32. The individual information storage unit 34 for storing individual information to be stored represents a network.

In FIG. 3B, time flows from top to bottom, and the arrow between the center device 31 and the access terminal 32 shows the flow of information. The center device 31 continuously transmits the individual information A, B, C, ... Stored in the individual information storage unit 33 to the access terminal 32. Access terminal 3
2 is the individual information A, B, transmitted from the center device 31.
Receive C, ... When requesting a service related to the individual information being received, the access terminal 32 transmits a service request to the center device 31 while receiving the corresponding individual information.

The time lag 40 shown in FIG. 3 (B) is a difference between the time transmitted from the center device 31 and the time received by the access terminal 32 in one piece of information transmitted and received between the center device 31 and the access terminal 32. Is. The malfunction occurrence timings 41 to 43 are timings at which the service request transmitted from the access terminal 32 is not correctly recognized by the center device 31 due to the time lag 40 and the like.

Here, the individual information A, B, C, ... Are individual information continuously transmitted from the center device 31 to the access terminal 32, and each is independent information. A service request can be transmitted from the access terminal 32 to the center apparatus 31 for each individual information. For example, the service request for the individual information B is an event requesting a service for the individual information B being received by the access terminal.

The unreceivable states 51 and 52 are states in which the center device 31 does not receive the service request transmitted from the access terminal 32. The operation flow of the center device 31 and the access terminal 32 will be described below with reference to FIG. 3B showing a state in which the center device 31 continuously transmits a plurality of pieces of individual information to the access terminal 32.

When the transmission of the individual information A is completed, the center device 31 immediately and continuously transmits the next individual information B to the access terminal 32. Here, in one piece of information transmitted and received between the center device 31 and the access terminal 32, it is assumed that there is a time lag 40 between the time when the transmission is started from the center device 31 and the time when the reception is started at the access terminal 32. In this case, in the service request for the individual information B made while the access terminal 32 is receiving the individual information B, the individual information to be the target of the service request transmitted from the access terminal 32 and the target of the service request received by the center apparatus 31. There is a possibility that misidentification may occur because the individual information does not match. While the access terminal 32 requests the service related to the individual information B being received, the center device 31 is in the stage of transmitting the individual information C, and thus can recognize that the service request is related to the individual information C. Because there is a nature.

In order to prevent this erroneous recognition, for example, a method is conceivable in which the center device 31 sets the service request from the access terminal 32 to an unreceivable state for a certain period of time according to the time lag 40 after the start of transmission of new individual information. .

For example, when a service request for the individual information B being received from the access terminal 32 is transmitted to the center device 31 at the malfunction occurrence timing 42, the center device 3
In No. 1, the service request for the individual information B transmitted from the access terminal 32 is not received because it is in the reception disabled state 52. By doing so, the center device 31 sends the service request for the individual information B transmitted from the access terminal 32 to the individual information C even though the next individual information C is being transmitted.
It can be prevented that the service request is mistakenly recognized.

However, according to the above method of providing the reception disabled state 52 and the like in the center device 31, even if the access terminal 32 is receiving the individual information B, the service request for the individual information B is accepted by the center device 31. There is a problem that you can not have time. Considering the time lags of both transmission and reception, this time is a maximum of twice the time lag 40 shown in FIG. Furthermore, when the length of the individual information B is shorter than the unreceivable state 52, no service request can be accepted for the individual information B, and there is a problem that the service becomes impossible.

As another method, it is conceivable to add the identifier of the individual information from the access terminal side and transmit the individual information for which the service request is made. In that case, for example, a push button or the like is used. It becomes difficult to make a service request with a simple input device, and a heavy operation load is imposed on the operator of the access terminal.

[0015]

In the above-mentioned conventional method of setting the reception disabled state on the side of the center device, there is a time when the service request cannot be accepted although the access terminal receives the individual information. , And the time length of the individual information is shorter than the fixed time at the beginning of the individual information for which the service request is not accepted, the center device cannot receive any service request from the access terminal for the individual information. There was a problem with sex.

An object of the present invention is to enable reliable transmission and reception of a desired service request with a simple operation without causing a malfunction of the center device for a service request for individual information.

[0017]

In order to solve the above-mentioned problems, the present invention has the effect that, when transmission of one piece of individual information to be transmitted is completed by the center device, the access terminal asks "whether or not to send a service request to the center device". The most main feature is to use a means for transmitting "confirmation request" and a means for not transmitting the following individual information unless either a response from the access terminal or a service request is received.

The operation of the present invention is as follows. According to the present invention, in a center device for continuously transmitting a plurality of individual information to an access terminal via a network,
While the center device is continuously transmitting individual information to the access terminal, when the transmission of one piece of individual information to be transmitted is completed, a confirmation request whether or not to send a service request should be transmitted to the access terminal. As a result, the center device can receive the service request of the access terminal without depending on the length of the individual information.

Further, by providing a means for not transmitting the following individual information unless either the response to the confirmation request from the access terminal or the service request is received, the center device is provided with a single individual information from the center device. Even when there is a time lag between transmission and reception at the access terminal or when the center device cannot grasp the state of the access terminal side, it accurately recognizes which individual information the service request from the received access terminal relates to and operates. It becomes possible.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a system to which the present invention is applied.

The center device 1 is a device in which the malfunction prevention method according to the present invention operates, and includes an individual information transmitting unit 10, a confirmation request transmitting unit 11, a confirmation request response / service request receiving unit 12, and an individual information storage unit 3. Prepare The access terminal 2 is a device that is connected to the center device 1 via the network 4 to perform access, and the individual information receiving means 2
0, service request transmitting means 21, and response transmitting means 22 for confirmation request.

The individual information transmitting means 10 is means for continuously transmitting the individual information stored in advance in the individual information storage section 3 to the access terminal 2. Confirmation request transmission means 11
Is continuously transmitting the individual information to the access terminal 2, each time transmission of one individual information to be transmitted is completed,
It is a means for transmitting a confirmation request as to whether or not to transmit a service request to the access terminal 2. The confirmation request response / service request receiving unit 12 receives either a response to the confirmation request from the access terminal 2 or a service request, and after receiving the response, the individual information transmitting unit 10 transmits the next individual information. It is a means for controlling.

The individual information receiving means 20 of the access terminal 2
Is a means for receiving the individual information transmitted by the center device 1 via the network 4. Service request transmission means 2
1 is a means for transmitting a service request to the center device 1 if a service is required when receiving confirmation information as to whether the individual information is being received or a service request is to be transmitted. The response transmitting means 22 for the confirmation request transmits a response to the confirmation request from the center device 1 as to whether or not to transmit the service request, when the service is not requested, and when the service is requested. Is a means for transmitting the service request of the corresponding individual information by the service request transmitting means 21.

The individual information storage section 3 is a section for storing a plurality of individual information in the center device 1. The network 4 is a network that connects the center device 1 and the access terminal 2, for example, an analog telephone line, ISDN.
It may be a line, LAN, ATM, or the like.

The center device 1 continuously transmits a plurality of accumulated individual information to the access terminal 2. FIG.
FIG. 6 is a diagram illustrating an example of a procedure between a center device and an access terminal according to the present invention. In FIG. 2, time flows from top to bottom, and the arrow between the center device 1 and the access terminal 2 in the figure shows the flow of information.

The center device 1 sequentially and continuously transmits the accumulated individual information A, B, C, .... The access terminal 2 receives the individual information transmitted from the center device 1. In addition, when requesting a service related to the individual information being received, the center device 1 is receiving while receiving the corresponding individual information.
To send a service request to.

The time T0 corresponds to the malfunction occurrence timing in the conventional method shown in FIG. 3, and the service request transmitted from the access terminal 2 during that time is not correctly recognized by the center device 1, but in the present invention, Even if the service request is transmitted at this time T0, no malfunction occurs as described later.

The individual information A and B are individual information continuously transmitted from the center device 1 to the access terminal 2 and are independent information. The confirmation requests A and B of and are information continuously transmitted from the center apparatus 1 to the access terminal 2 immediately after the transmission of the individual information is completed.

The response to the confirmation request A is that the service related to the individual information A is not requested. The service request for the individual information B is a service request for the individual information B being received by the access terminal 2.

The response to the service request of the individual information B is a response of the processing result for the service related to the individual information B performed by the center device 1 or the detailed information provided as a service regarding the individual information B.

In the response waiting state W, the center device 1 finishes transmitting the confirmation request A and the confirmation request A from the access terminal 2 is sent.
Is a state of time until a response to is received. Time T1 is a timing before time T2.

The time T2 is a time corresponding to the malfunction occurrence timing in the prior art similar to the time T0. Time T
3 is the timing after time T2.

Next, the operation flow of the center device 1 and the access terminal 2 will be described with reference to FIG. Here, the center device 1 receives conditions such as data and commands from the access terminal 2 and outputs a plurality of corresponding individual information to the access terminal 2
In contrast, it is shown from the state of continuous transmission.

The center device 1 transmits the individual information A to the access terminal 2 (), and when the transmission of the individual information A is completed, immediately and continuously transmits the confirmation request A (). When the center apparatus 1 finishes transmitting the confirmation request A, the center apparatus 1 enters the response waiting state W, and the response waiting state W continues unless a response to the confirmation request A or a service request from the access terminal 2 is received.

Upon receiving the confirmation request A, the access terminal 2 sends a response to the confirmation request A to the center device 1 (). Upon receiving the response to the confirmation request A, the center device 1 moves to the next process and starts transmitting the next individual information B (). When the transmission of the individual information B is completed, the center device 1 immediately and continuously transmits the confirmation request B ().

When the access terminal 2 sends a service request for the individual information B to the center device 1 at a time T1 between these times (not shown), the center device 1 sends the individual information B to the individual information B.
Alternatively, since the confirmation request B is being transmitted to the access terminal 2, it can be recognized as a service request for the individual information B without any problem.

Further, as shown in FIG. 2, when the access terminal 2 transmits the service request for the individual information B to the center device 1 at time T2 (), the center device 1 receives the service request for the individual information B. At this time, since the transmission of the individual information B and the transmission of the confirmation request B have already been completed and the system is in a response waiting state, the center device 1 can accurately recognize that the service request is for the individual information B.

At time T3, access terminal 2
When the center apparatus 1 receives the service request for the individual information B (not shown) when the center apparatus 1 receives the service request for the individual information B, the transmission of the individual information B has already been completed. Since the transmission of the confirmation request B has been completed and is in the response waiting state, the center device 1 can accurately recognize that the service request is for the individual information B.

If the access terminal 2 does not need the service of the individual information B, when the confirmation request B transmitted in is received, the same response as the response of is transmitted to the center device 1. .

FIG. 2 shows the access from the center device 1 to the access terminal 2.
In this example, the individual information A and the individual information B are continuously transmitted to the center device 1, and the access terminal 2 transmits the service request to the center device 1 while receiving the individual information B. With respect to the above, it is possible at any time as long as the plurality of individual information is continuously received by the access terminal 2. If the center device 1 transmits individual information and receives a service request for the individual information before the end of transmission of the individual information, a response to the service request can be immediately transmitted. It goes without saying that it is not always necessary to send the confirmation request when the transmission of the individual information is completed.

[0041]

As described above, according to the present invention, in the center device for continuously transmitting a plurality of individual information to an access terminal, when the transmission of one individual information to be transmitted is completed, a service request is issued to the access terminal. In order to control whether or not to send the next individual information unless confirmation is made as to whether or not to send and a response to the confirmation request from the access terminal or a service request is received, the service request sent by the access terminal to the center device is controlled. There is an effect of preventing a malfunction due to a mismatch between the target individual information and the target information for the service request recognized by the center device. Further, the length of the individual information to be transmitted is not limited, and the access terminal can transmit the service request at any time while receiving the individual information, and the center device can accept the received service request. There is an effect.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration example of a system to which the present invention is applied.

FIG. 2 is a diagram illustrating an example of a procedure between the center device and the access terminal of the present invention.

FIG. 3 is a diagram illustrating an example of a procedure between a center device and an access terminal according to the related art.

[Explanation of symbols]

 1 Center Device 10 Individual Information Transmission Means 11 Confirmation Request Transmission Means 12 Confirmation Request Response / Service Request Reception Means 2 Access Terminal 20 Individual Information Reception Means 21 Service Request Transmission Means 22 Confirmation Request Response Means 3 Individual Information Storage 4 Network

Claims (1)

[Claims] 1. A service for individual information recognized as a target of the service request by continuously transmitting accumulated individual information to an access terminal and receiving a service request for the individual information being transmitted from the access terminal. A method for preventing malfunctions performed in a center device, wherein the center device transmits to the access terminal, when transmission of one piece of individual information is completed, when the individual information is continuously transmitted to the access terminal. It is characterized in that it sends a confirmation request as to whether or not to send a service request, and controls not to send the following individual information unless either a response from the access terminal to the confirmation request or a service request is received. A method for preventing malfunction of the center device.