JP3135775B2 - Download method of public use terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of updating various service control programs for a public use terminal device, such as a public telephone, connected to a line having a plurality of channels.

[0002]

2. Description of the Related Art Conventionally, when updating a service control program of a public use terminal device, a new control program may be sent from a center managing the device via a line and rewritten (hereinafter referred to as download). In spite of the fact that the terminal is connected to only one channel or that the terminal is connected to an ISDN line and a plurality of channels can be used, one channel is used and download programs are sequentially transmitted and downloaded. .

However, the service control program occupies a large memory capacity as the services are diversified. Therefore, when downloading using one line, it takes a long time, and the service providing time of the apparatus is short. There was a problem of becoming.

For this reason, the service control program is divided into modules and managed in several memory areas.
When the service content is changed, only the module that has changed is downloaded, for example, so that the service unavailable time is shortened.

[0005]

However, when the service contents of the above-mentioned public use terminal device are completely changed, it is necessary to update all memories storing the service control program of the terminal device. .

[0006] In this case, in the conventional download method,
In spite of the fact that the public use terminal device is connected to an ISDN line and a plurality of channels can be used, data of a download program is sequentially transmitted from a center managing the terminal device in accordance with the flow thereof, and Downloading is performed while confirming each data so that received data is correctly stored in memory. Therefore, it takes a long time to update data in all memories, and the apparatus cannot provide service for a long time. There was a problem.

[0007] The present invention provides an IS
When downloading a public-use terminal device connected to a DN line, a download method for transmitting a plurality of data simultaneously using a plurality of lines and updating the service control program of the terminal device reliably and quickly is provided. The purpose is to provide.

[0008]

According to the present invention, in order to solve the above-mentioned problems, program data for downloading a public use terminal device is divided into one number tag table data and a plurality of data with number tags, The management center is provided with a file device for transmitting the divided data and a transmission / reception device, and a CPU control unit of the public use terminal device has a multi-channel transmission / reception circuit, and the number tag table received via the transmission / reception circuit. Number tag table data storage means for temporarily storing data until the end of download, download program data storage means for storing the download program data, and download control program data for storing control program data of the control means for executing the download Storage means, the management center After activating the download control means of the CPU control unit of the public use terminal device through the line, the data is read from the file device, and the terminal is read from the transmission / reception device via the plurality of channels of the line. The public use terminal device that has transmitted the data to the device and received the transmission data according to the control program of the download control means of the CPU control unit. In addition to storing in the tag table data storage means, the check bit of the number tag table data is cleared, and the number tags of the plurality of number-tagged data received simultaneously and in random order from a plurality of channels are stored in the stored number. Referring to the tag table, the download program of the data The storage address to the storage means is obtained, and the data length is corrected and confirmed by referring to the number tag table. After storing the data at the corresponding address of the download program data storage means, After the check bit of the table data is set to 1 and all the data with the number tags are received, it is confirmed that the check bits of the number tag table data are all 1 and the control program of the public use terminal device is checked. It is intended to be updated.

[0009]

According to the present invention, the data of the download program can be accurately stored in a predetermined download area even if the data of the download program comes from a plurality of channels in a random order.

Also, since the number tag table has a bit for checking whether data is stored,
It is possible to easily determine whether or not all data has been stored normally, and to check which data has not been stored, so that a request for retransmission of unstored data can be easily made from the terminal device side. It is.

[0011]

FIG. 1 is an overall system diagram of an embodiment of the present invention. 2A and 2B show the configuration of download program data. FIG. 2A shows the configuration of a number tag table TB1 to be transferred first, and FIG. 2B shows the configuration of unit data of a plurality of data D1 to Dn with number tags.

FIG. 3 is an explanatory diagram of a processing procedure of the download program data received by the public use type terminal device, and FIG. 4 is an operation flowchart of the download control means of the CPU control unit.

In FIG. 1, reference numeral 1 denotes a public use terminal device,
2 is a management center, 3 is an exchange, and L1 and L2 are ISDN lines.

Reference numeral 10 in the terminal device 1 denotes a CPU control unit;
11 is a CPU, 12 is a multi-channel transmission / reception circuit, 13 is control program data storage means (ROM in this embodiment) of download control means, 14 is download program data storage means (EEPROM in this embodiment), 15
Is a number tag table data storage means (RA in this embodiment)
M).

Reference numeral 16 denotes a controlled unit and a main function unit of the public use type terminal device, the details of which are not shown.

The management center 2 has a transmitting / receiving device 2,
Reference numeral 2 denotes a file device.

In FIG. 1, a public use type terminal device 1 is connected to an exchange 3 via a line L1, and a transmitting / receiving device 21 of a management center 2 for supplying a service control program of the terminal device 1 is also connected to the exchange 3 via a line L2. 3 is connected.

In FIG. 1, both lines L1 and L2 are ISD
It is assumed that there are N lines, and two signal channels (hereinafter, referred to as B channels) and one control channel (hereinafter, referred to as D channels), a total of three channels, can be used.

In the file device 22 of the management center 2, a service control program for downloading the public use terminal device 1 is divided into n number tag tables TB1 and n-numbered data D1 to Dn and stored. .

The public use type terminal device 1 is under CPU control, and the download control program data is stored in the storage unit 1.
The control program data of the terminal to be rewritten is stored in the ROM as
It is stored in ROM.

Further, a RAM is provided as number tag table data storage means 15 for temporarily storing number tag table data for download work of the present invention.

As described above, FIG.
Shows the configuration of the number tag table TB1 stored in the file device 22 of FIG.
The data is transferred to the public use terminal device 1 through a specific channel. The number tag table TB1 has tag numbers, data storage addresses, data lengths, and check bits each consisting of n data pieces, and the transfer data D1 to Dn
Are associated with the tag numbers in the number tag table TB1.

FIG. 3 shows how the download program data received by the public use terminal device 1 is handled and stored in the download program data storage means 14 EEPROM.

As described above, FIG.
5 is an operation flowchart of the download control means.

The downloading method of the present invention will be described below with reference to FIGS.

An incoming call is received from the management center 2 to the public use type terminal device 1 to instruct the public use type terminal device 1 to activate the download control means. Thereafter, first, the management center 2 reads out the number tag table TB1 from the file device 22 and transmits it using the B channel set at the time of the first incoming call out of the two B channels.

When the public use type terminal device 1 receives the number tag table TB1 after activating the download control means, it stores the received number tag table TB1 in the number tag table data storage means 15 comprising a RAM.
Check bit 1 of stored number tag table TB1
It is confirmed that n is cleared to 0, and if there is a check bit that is not cleared to 0, it is cleared to 0 (step S).
1 Hereinafter, the description of the steps is omitted).

The fact that the number tag table TB1 has been normally received is notified to the management center 2 via the channel that has received the number tag table (S2).

In the management center 2, the number tag table TB
1 starts transmitting the tagged data D1 to Dn when there is a notification from the public use type terminal device 1 that the data has been successfully received. At this time, since there are three usable channels, the data k is transmitted at the B channel 1, the data 1 is transmitted at the D channel, and the data m is transmitted at the B channel 2 using the three channels at the same time.

When the public use type terminal device 1 receives the data k on the B channel 1 (S32), the number tag table TB1 stored in the number tag table data storage means is read from the value of the tag k attached to the data k. The data storage address k and the data length Lk are obtained by referring to (S42).

It is checked whether the received data k is the same as Lk obtained from the number tag table TB1 (S5).
2) If they are the same, proceed to the next (S72); if they are different, proceed to the step of requesting the management center to retransmit the data k in (S62). If a retransmission is requested, the process proceeds to the next reception data wait.

In (S72), the number tag table TB1
The data obtained by removing the tag of the data k from the data storage address k obtained from the above is stored in the download program data storage means 14. After the data is normally stored, the check bit k of the number tag table TB1 is set to 1 (S82).

Thereafter, it is checked whether all of the check bits 1 to n of the number tag table TB1 are 1 (S9). If all the bits are 1, the download is completed. If any one is 0, the process returns to the data reception wait.

When data 1 is received on the D channel (S3
1) The data storage address 1 and the data length Ll are obtained by referring to the number tag table TB1 stored in the number tag table storage means from the value of the tag 1 attached to the data 1 (S41). Received data 1 and number tag table TB1
It is checked whether or not Ll obtained from is the same (S
51) If they are the same, proceed to the next (S71); if they are different, proceed to the step (S61) of requesting the management center to retransmit the data l (S61); Move on to waiting for data.

In (S71), the number tag table TB1
The data obtained by removing the data l tag from the data storage address l obtained from the above is stored in the download program data storage means 14, and after the data is normally stored, the check bit l of the number tag table TB1 is set to 1 (S81).

Thereafter, it is checked whether all of the check bits 1 to n of the number tag table TB1 are 1 (S9). If all the bits are 1, the download is completed. If any one is 0, the process returns to the data reception waiting (S10). ).

When data m is received on B channel 2 (S
33) Number tag table T stored in number tag table storage means 15 based on the value of tag m attached to data m
Referring to B1, data storage address m and data length Lm
Is obtained (S43). Received data m and number tag table T
It is checked whether or not the Lm obtained from B1 is the same. If the Lm is the same, the process proceeds to the next (S73), and if different, the process proceeds to a step of requesting the management center to retransmit the data m in (S63). If a retransmission is requested, the process proceeds to the next reception data wait.

In (S73), the number tag table TB1
Is stored in the download program data storage means 14, and the check bit m of the number tag table TB1 is set to 1 after the data has been normally stored (S83).

Thereafter, it is checked whether all of the check bits 1 to n of the number tag table TB1 are 1 (S9). If all the bits are 1, the download is completed. If any one is 0, the process returns to the data reception waiting (S10). ).

The above-described receiving operation on the three channels can perform a multitask operation, and can perform apparently parallel operations. Further, it is possible to determine whether or not the download is completed only by determining whether or not all the check bits of the number tag table TB1 stored in the number tag table data storage means 15 are "1". The check bit is set to 0 by the judgment of the download control means of the public use terminal device.
It is also possible to easily request retransmission of the data.

In the above description, data 1 to n are simultaneously transmitted on three channels. However, the two B channels of the ISDN line have a transfer rate of 64 Kb / S.
Because the channel is different from 16Kb / S transfer rate,
The arrival speed at the public use terminal device 1 is different. Therefore,
The order is the order of arrival of the data. Even if the order is random, the order may be stored in the download program data storage means 14 according to the number tag table TB1.
Even if the data is duplicated, no problem occurs because the data is simply overwritten.

[0042]

As described above, according to the present invention, when the service control program is downloaded from the management center and updated in order to change the service content of the public use terminal device, the download program data is stored in one number tag. Since the data is divided into table data and a plurality of number-tagged data and transmitted from the management center, the terminal device first receives the number tag table, and then transmits a plurality of number-tagged data from a plurality of channels. Since the data is received and stored in the service control program data storage means with reference to the number tag table, there is an effect that the data can be stored at a predetermined address even if the data is received simultaneously and in random order from a plurality of channels.

Therefore, the use of a plurality of channels has the effect of greatly reducing the time required for downloading, and can greatly reduce the service stop time even when all the service control programs are updated.

[Brief description of the drawings]

FIG. 1 is an overall system diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of download program data;
(A) is a diagram showing a configuration of a number tag table TB1 to be transferred first, and (B) is a diagram showing a configuration of unit data of a plurality of data D1 to Dn with number tags.

FIG. 3 is an explanatory diagram of a processing procedure of download program data.

FIG. 4 is an operation flowchart of a download control unit of the CPU control unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Public use terminal device 2 Management center 3 Exchanger 10 CPU control part 11 CPU 12 Multi-channel transmission / reception circuit 13 Download control program data storage means (described as ROM in FIG. 1) 14 Download program data storage means (FIG. 1
15) Number tag table data storage means (R in FIG. 1)
AM) 16 Controlled part and main function part of public use type terminal device 21 Transmission / reception device 22 File device L1, L2 ISDN line

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 13/00 H04L 12/00-12/28 H04L 12/50-12/66 H04M 3/42 H04M 3 / 424-3/436 H04M 11/00-11/10 H04M 17/00-17/02 H04Q 3/54-3/56

Claims (1)

(57) [Claims] 1. A program for controlling a public use terminal connected to a line having a plurality of channels is transmitted from a management center of said public use terminal via said line, and said control program is transmitted. A file for dividing the download program data into one number tag table data and a plurality of number tag-attached data, and storing the divided data in the management center. Device and a transmission / reception device, a CPU control unit of the public use terminal device, a multi-channel transmission / reception circuit, and a number tag for temporarily storing the number tag table data received via the transmission / reception circuit until downloading is completed. Table data storage means for storing the download program data; And a download control program data storage means for storing control program data of the control means for executing the download. The CPU control of the public use terminal device from the management center via the line After activating the download control means, the data is read from the file device, transmitted from the transmission / reception device to the terminal device via the plurality of channels of the line, and the public use type device receives the transmission data. According to the control program of the download control means of the CPU control unit, the terminal device stores the number tag table data first received on the specific channel of the multi-channel transmitting / receiving circuit in the number tag table data storage means, and stores the number tag table data Check bits Clearing the number tags of a plurality of number-tagged data received simultaneously and in random order from a plurality of channels with reference to the stored number tag table, and storing addresses of the data in the download program storage means. The data length is also corrected and confirmed with reference to the number tag table, and the data is stored at the corresponding address of the download program data storage means. 1, after receiving all the data with the number tags, confirming that all the check bits of the number tag table data are 1, and updating the control program of the public use terminal device. To download a public-use terminal device.