JP2003051796A5 - - Google Patents

Description

Patent application title: Download system and server

[0001]
Field of the Invention
The present invention relates to a download system for distributing update data to a device controlled by a program and a server constituting the download system .

[0007]
The present invention has been made in view of the above-described problems, and its object is to enable distribution of update data from a server to a plurality of devices in operation at one time, and the time and cost required for program update are significantly greater than before. It is an object of the present invention to provide a download system that can be reduced and a server that configures the download system .

[0015]
According to an eighth aspect of the present invention, in the first to seventh aspects of the present invention, the server includes clock means for specifying the time to transmit the updater, and the possibility of using the device at night is as follows. It is possible to distribute the update data by designating time so as to use a time zone which is low and traffic of the mobile communication network is small.
The invention according to claim 9 is a server, and constitutes a download system according to any one of claims 1 to 8 together with the base station, the mobile terminal and the device.

[0021]
Meanwhile, the base station 3 recognizes that it is a distribution updater by a communication parameter that has been added to the updater, to deliver the update by broadcast (Broadcast). Here, the base station 3 notifies the presence or absence of the update as broadcast information for notifying the transmission of the update. Therefore, as shown in FIG. 3, all the mobile terminals 2 present in the reception area of radio waves from the base station 3 analyze the broadcast information in the writing means 13 when the broadcast information is received (S1). When the broadcast information indicates transmission of the update data (S2), communication parameters for making the mobile terminal 2 correspond to reception of the update data are set in the mobile terminal 2 (S3). Thus, when communication parameters are set in the mobile terminal 2, reception (downloading) of the update data becomes possible (S4). However, since the device type data and the program identification data which are identification data are added to the head of the update data as described above, one of the device type data in which the received device type data is registered in the writing unit 13 is The update data is read only when the version indicated by the program identification data is newer than the version of the program stored in the program storage unit 12. If the device type data do not match or the version of the program is not new, the reception of the update data is stopped and the device enters a standby state.

[0042]
According to the invention of claim 8, according to the invention of claims 1 to 7, since the server includes clock means for specifying the time to transmit the update data, there is a low possibility that equipment will be used at night, And, there is an advantage that it becomes possible to specify the time and distribute the update data so as to use the time zone in which the traffic of the mobile communication network is small.
The invention according to claim 9 is a server, and constitutes the download system according to any one of claims 1 to 8, together with the base station, the mobile terminal, and the device.

Claims (9)

A base station of a mobile communication network, a mobile terminal capable of data transmission between the base station, a device controlled by a program, a server for registering updater of the program and transmitting the updater to the device through the base station The storage unit stores the program stored in the storage unit, the control unit that controls the operation of the storage unit and the program stored in the storage unit, and stores the program transmitted from the server through the mobile terminal. And writing means for writing in the means, and when transmitting the update data from the server, at least the device type data specifying the type of device to which the program is to be transmitted and the program identification data representing the version of the program Identification data is simultaneously transmitted from the base station to the mobile terminal together with the update data. When the device type data transmitted matches the device type data set in advance in the writing means, and it is confirmed by the program identification data that the data is unrewritten update data A download system characterized in that the update data is stored in the storage means. The update data received by the mobile terminal is divided into a plurality of blocks, and block identification data for identifying a block and error check data are added to each block, and the writing means causes an error according to the error check data. The download system according to claim 1, wherein block identification data is specified for the detected block, and retransmission is requested to the server. The update data received by the mobile terminal is divided into a plurality of blocks, and block identification data for identifying a block and error check data are added to each block, and the writing means causes an error according to the error check data. 2. The download system according to claim 1, wherein for the detected block, block identification data is specified after completion of the reception of the update data to request the server to retransmit. The server repeatedly transmits the same update data a plurality of times when transmitting the update data, and the writing means complements the block in which an error is detected at the first reception of the update data at the second and subsequent receptions of the update data from the server 4. The download system according to claim 2, wherein when there is an uncompleted block when the transmission of the update data is completed, the server is requested to retransmit the block. When the rewriting of the update data is successful, the writing means returns unique identification data for individually identifying the device to the server within a predetermined time after the completion of the rewriting, and when the unique identification data is returned by the server The download system according to any one of claims 1 to 4, characterized in that a version control table in which a version of a program is associated with an apparatus is updated. 6. The download system according to claim 5, further comprising: a timer for randomly setting, for each device, the predetermined time from when the update of the update data is completed until when the device returns the unique identification data. The mobile terminal is characterized in that, upon receiving the up-data by the simultaneous broadcasting from the base station, the transmission to the base station is prohibited until the transmission of the up-data from the server is completed. The download system according to any one of claims 6. The download system according to any one of claims 1 to 7, wherein the server comprises clock means for specifying a time to transmit the update data. The server which comprises the download system of any one of Claim 1 thru | or 8 with the said base station, the said mobile terminal, and the said apparatus.