JP3445293B2 - How to download - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching system,
About the particular changer download how to download and online program or station data from the main unit to be accommodated to the plurality of slave devices.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Laid-Open No. 289393/1989, download of a program is incorporated in a control unit of a subscriber line concentrator of a telephone exchange in a conventional exchange system. The programs must be exchanged using the two-sided memory, and only the program can be downloaded, the data cannot be downloaded, and the main device that sends the program and the slave device that accepts it The download can be executed only in a one-to-one correspondence, and the program cannot be downloaded from the master to multiple slaves at the same time. Therefore, to download the program to multiple slaves, repeat download Operation was required.

[0003]

SUMMARY OF THE INVENTION A method of downloading station data and online programs from a main device composed of a data management device accommodated in a switching device to a plurality of slave devices such as a communication terminal device is provided, and a plurality of devices are provided. By selecting all or any of the slave devices so that the station data and online programs can be simultaneously downloaded to all the plurality of slave devices or predetermined slave devices, the download time can be shortened and the exchange device Facilitate switching.

[0004]

In order to solve the above problems, the present invention provides a plurality of slave devices, a master device that manages these slave devices, and a switching device that connects the slave devices and the master device. In the exchange system consisting of, a download method including a step of connecting the main device and a plurality of slave devices by the exchange device, and a step of the main device transmitting an online program or station data of the slave device to the plurality of slave devices. It is characterized by doing. Further, the present invention includes the step of requesting the connection between the master device and the plurality of slave devices from the master device to the exchange device, and the master device simultaneously sends the online program or station data to the plurality of slave devices. It is characterized in that it is a download system for transmission. Also,
The present invention is characterized in that the master device is a download system having a step of arbitrarily selecting a slave device to be connected. The present invention is characterized in that it is a download system including a data type code for identifying common data, group data, personal data or a program at the head of an online program or station data transmitted simultaneously. The present invention is characterized in that the slave device is a download system including a step of receiving only a predetermined online program or station data out of the online program or station data transmitted from the master device. The present invention is characterized in that the slave device is a download system having the ability to recognize its own extension number. The present invention is characterized in that the switching device is a download system having a time division digital network.

[0005]

In order to solve the above problems, the present invention provides a plurality of slave devices, a master device that manages these slave devices, and a switching device that connects the slave devices and the master device. a download method in a switching system consisting of, with respect to switching device from the main unit, and requesting a connection with the main apparatus and a plurality of slave devices, or replacement device the main unit
On-line program from main unit
Or station data should be sent to multiple slaves at the same time.
Multiple connection between the master device and the plurality of slave devices
And synchronization from one of the plurality of slaves
Connecting the signal to be sent to the main device
And the master device uses the synchronization signal from the one slave device.
According to the online program or station data
Sending simultaneously to the plurality of slaves . In addition, the main device multi- connect
It is characterized by including the step of arbitrarily selecting a plurality of slave devices. Further, it is characterized by including a step of adding a data type code for identifying common data, group data, personal data or a program to the head of an online program or station data transmitted at the same time .

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1. System Configuration 1.1 Relay Method FIG. 1 is a diagram showing a relay method of a telephone exchange system to which the present invention is applied. In FIG. 1, the telephone exchange system includes an exchange device including a communication path switch (SW) 1, a central controller 9, a storage device 10, and a control system bus 11. The communication path switch 1 accommodates a plurality of terminal devices 2 such as a dealer board, and a dedicated extension circuit (DLIN) 3 for controlling connection of the terminal devices 2 is connected. The terminal device 2 and the dedicated extension circuit 3 are connected by a connection cable 7-2 that transmits and receives a voice signal and a call control signal. A program or data for controlling the terminal device 2 is stored in the terminal device 2
The data management device 4 for inputting or modifying the data is connected to the terminal adapter (TA) 5 by the communication cable 7-1, and further, the I interface extension circuit (ILIN) 6 and the connection cable 7 are used. -2, and send and receive data via ISDN interface. In addition, the communication path switch 1,
A trunk (TRK) 8 for accommodating a station line, a hot line, or a branch line and controlling connection thereof is connected. The central controller (CC) 9 controls the entire telephone switching system and performs call control between the terminal devices 2 and between the terminal device 2 and the office line, hot line or branch line. The storage device (MM) 10 stores programs for the central control device 9 to control the telephone exchange system, station data, and various tables.
It is connected to the central controller 9 by 1. In addition, the communication path switch 1 is connected to the control system bus 11,
Further, although not shown, the central control unit 9 and the dedicated extension circuit 3, the trunk 8 and the I interface extension circuit 6 are logically connected. As a result, the speech path switch 1, the dedicated extension circuit 3, the I interface extension circuit 6 and the trunk 8 operate under the control of the central control unit 9.

1.2 Configuration of Terminal Device Next, the configuration of the terminal device 2 will be described with reference to FIGS. FIG. 2 is a diagram showing a board surface of the terminal device 2, and FIG.
FIG. 3 is a diagram showing its functional blocks. In FIG. 2, in addition to the telephone handset 25, the terminal device 2 has a button "CL2" corresponding to the central line CL21 accommodated in its own terminal.
1 "21-1, indicator lamp 22-1 corresponding to this button" CL21 ", button" HL21 "21-2 corresponding to hotline HL21, and this button" HL2 "
Display lamp 22-2 corresponding to 1 "and branch line SL2
The button "SL21" 21-3 corresponding to 1, the display lamp 22-3 corresponding to the button "SL21", and the button "A" 23-1 in which the dials A to D of the destination used as the auto dial are registered. , "B" 23-2, "C"
23-3, "D" 23-4, the corresponding display lamps 24-1 to 24-4, and the line name display liquid crystal display (L
CD) 26 and dial keys 2 for performing digital
9, a button "Hold" 27 for holding a call, a button "Hang" 28 for cutting a call, and an incoming call ringer 20 for audibly displaying an incoming call.

FIG. 3 is a functional block diagram showing a hardware configuration of the terminal device 2 having the board configuration shown in FIG. In FIG. 3, the terminal device 2 includes a call control processor (MPU) 211 that controls the entire terminal device, a temporary storage device (RAM) 213, and a fixed storage device (ROM) 212.
And is connected to the control bus 214. The call control processor 211 performs control according to an online program stored in a temporary storage device (RAM) 213 connected to the control bus 214. Further, the temporary storage device (RAM) 213 stores station data, that is, data different for each delivery station, and the call control processor 21.
It also stores temporary information that occurs during the time that 1 executes control. The fixed storage device (ROM) 212 stores a call control program and a download program for controlling a download operation for setting various data in the temporary storage device (RAM) 213. Call control processor 211
Is a fixed storage device 212 based on a download request according to the present invention, that is, a setting request for programs and various data.
To access the speed conversion circuit 225 and the communication controller 22 by activating the download program.
6, Direct memory access controller (DMA
C) Controls 227, 1 of ISDN basic interface
The online program and various data transmitted via one B channel 220-2 are stored in the temporary storage device 213. When the storage is completed, the online program in the temporary storage device 213 is activated to start the online operation of the terminal device. A call control message transmission / reception buffer 215, a liquid crystal display controller 221, a lamp driver 222, a button scan buffer 223, and a ringer driver 224 are connected to the control bus 214, and all operate under the control of the call control processor 211.

Call control message send / receive buffer 215
Is for transmitting and receiving a call control message to and from the switching device, and a receiving circuit 216 for receiving the call control message from the switching device via the signaling channel (D channel) 219 of the ISDN basic interface, and the switching device. Is connected to the transmission circuit 217 for transmitting a call control message via the D channel 219. A liquid crystal display (LCD) 26 is connected to the liquid crystal display controller 221, and an arbitrary line name is displayed on the liquid crystal display 26 under the control of the call control processor 211.
The lamp driver 222 includes the lamps 22-1, 22-2 and
22-3 and lamps 24-1, 24-2, 24-3, 2
4-4 is connected and the blinking of the lamps is controlled so as to display the states of the buttons corresponding to those various lamps. The button scan buffer 223 uses the button “CL
21 "21-1," HL21 "21-2," SL21 "
21-3, Button "A" 23-1, "B" 23-2
"C" 23-3, "D" 23-4, button "Hold" 2
7. The button "disconnect" 28 and the dial key group 29 are connected, and the various buttons are scanned to detect the opening / closing thereof. The ringer driver 224 controls to connect the incoming call ringer 20 and audibly display the incoming call.

The telephone handset 25 includes a telephone circuit 21.
Is connected to one B channel 220-1 of the two voice or data channels (B channels) B1 and B2 of the ISDN basic interface via
It is connected to a speech path switch (SW) 1 via a dedicated extension circuit (DLIN) 3 of the exchange. The other B channel 220-2 is used for voice or data, and at the time of voice, it is switched to the call circuit 218 by the selector in the speed conversion circuit 225 to switch to the call handset 25.
Close the circuit to. Two B channels 220-
1, 220-2 and D channel 219 are actually digitally communicated by time division multiplexing, but here, for convenience, they are described as space division type. Therefore, FIG.
2 omits the description of the circuit that time-division-multiplexes the two B channels and the D-channel and the circuit that separates the time-division multiplexing.

Next, another configuration example of the terminal device will be described with reference to FIGS. 4 and 5. FIG. 4 shows another terminal device 2 '.
6 is a diagram showing a board surface of FIG. 5, and FIG. 5 is a diagram showing its functional blocks. 4, the terminal device 2'is different from the terminal device 2 shown in FIG. 2 in that the button "A" 23 in FIG.
-1, "B" 23-2, "C" 23-3, "D" 23-
4 and indicator lamps 24-corresponding to each of these buttons
1,24-2,24-3,24-4 and liquid crystal display (L
CD) 26 with touch sensor plasma display 2
It is the point that it was replaced with 6 '. Others are exactly the same. Plasma display with touch sensor 26 '
Is equipped with a sensor on the surface of a plasma display capable of displaying characters and graphics, for example, a sensor that detects the interruption of light due to the entry of a fingertip, or a sensor that detects the pressure due to contact with the display surface. By obtaining the above-mentioned position information, the same effect as pressing the button is obtained. In addition to the button frame, the function name or line name of the button is displayed on the display.

FIG. 5 is a functional block diagram showing the hardware structure of the terminal device 2'having the board structure shown in FIG. Similar to the board view, the difference from the functional block diagram of the terminal device 2 shown in FIG. 2 will be described. The screen controller 228 of the plasma display unit of the plasma display 26 ′ with a touch sensor is for processing via the control bus 214. A point controlled by the processor 211 and a screen memory 229 for displaying a graphic or a character (a line name etc.) on the screen are connected to the plasma screen controller 228. The touch screen receiver 228 receives the position information from the touch sensor unit and the plasma screen controller 228 performs the plasma display processing by writing via the control bus 21.
4, the processing processor 211 receives and analyzes the positional information of the point touched by the processing processor 211, and executes the same processing as button pressing.

Next, the memory allocation of the storage device 30 provided in the terminal device 2 will be described with reference to FIG. Work area 31
Stores information about an intermediate process that occurs when the online program 35 that performs call control and the download program 36 that controls download are executed. The personal data 32 stores data of buttons set according to the user's convenience for each terminal device, auto dial data registered by the user, and the like, and the group data 33 forms a group of a plurality of terminal devices and The data to be shared and used is stored, and the common data 34 stores the data common to all the terminal devices. Work area 31,
Personal data 32, group data 33, common data 34
Is located on a temporary storage device (RAM) 213, and other data except the work area is generally called station data and is backed up by a battery so as not to be erased when the power is cut off. In addition, the online program 35
Is also stored in the temporary storage device 30 and downloaded to facilitate program replacement when specifications are changed. Download program 36, personal data 3
2, a program for downloading the group data 33, the common data 34, and the online program 35, which are stored in the fixed storage device (ROM) 212.

1.3 Structure of Dedicated Extension Circuit The dedicated extension circuit (DLIN) shown in FIG. 1 equipped to execute transmission / reception of call control information (call control message) with a terminal device. 3 will be described in more detail. The dedicated extension circuit (DLIN) 3 is, as an embodiment, hardware for connecting the terminal device 2 and the switching device with a digital interface (ISDN basic interface having channels of 2B + D). Hereinafter, a detailed description will be given with reference to FIG. 7. The dedicated extension circuit (DLIN) 3 includes a processing processor (MPU) 301 that controls the entire dedicated extension circuit, a fixed storage device (ROM) 302 that stores a control procedure or a processing method performed by the processor, and a calculation processing progress list. A temporary storage device (RAM) 303 for accumulating data such as information, a call control message transmitting / receiving buffer 305 for transmitting / receiving a call control message to / from the terminal device 2, and a terminal device 2 connected to the call control message transmitting / receiving buffer 305. ISDN basic interface D, which is an interface for connecting with
A transmission circuit 306 for transmitting a call control message to the terminal device 2 through the channel 219, a transmission / reception buffer 305
And a receiving circuit 307 for receiving a call control message from the terminal device 2 via the D channel 219, and an information transmitting / receiving buffer 308 for transmitting / receiving control information to / from the central control device 9 of the switching device. The dedicated extension circuit (DLIN) 3 is a processing processor (MPU) 301.
Transmits / receives control information to / from the central control unit (CC) 9 of the exchange and also transmits / receives a call control message to / from the terminal unit 2 according to the control procedure or processing method programmed in the ROM 302.

Processing processor 301, fixed storage device 3
02, the temporary storage device 303, the call control message transmission / reception buffer 305, and the information transmission / reception buffer 308,
The information transmission / reception buffer 308 is connected to the control bus 304.
Is further connected to the control system bus 11 of the exchange. With this configuration, the processing processor (MPU) 30
1 transmits and receives control information between the central control unit (CC) 9 and
Transmission and reception of a call control message between the processing processor 301 and the terminal device 2 are performed via the control bus 304 and a call control message transmission / reception buffer 305. And two B channels 2 for voice or data
20-1 and 220-2 are connected to the communication path switch (SW) 1 of the switching device logically without any modification, and the D channel 219 for data is the call control message transmission / reception buffer 305, dedicated extension circuit control. It is connected to the central controller (CC) 9 via the bus 304, the information transmission / reception buffer 308, and the control system bus 11.

Two B channels 220-1 and 220-2
Although the D channel 219 and the D channel 219 are actually digitally communicated by time division multiplexing, here, for convenience,
The space division type is explained. Therefore, in FIG. 7, the description of the circuit that time-division-multiplexes the two B channels 220-1 and 220-2 and the D-channel 219 and the circuit that demultiplexes the time-division multiplexing is omitted.

1.4 Data Management Device The data management device 4 of FIG. 1 is a personal computer equipped with a main body control device, a CRT, a keyboard, a hard disk, and an RS-232C communication interface, and its device configuration is general-purpose. The description is omitted. The functions of the data management device 4 can be roughly classified into a data creation function for creating / correcting various data of the terminal device 2 and a download function for sending the created data to the terminal device. The data creation function centrally manages all the data of the terminal devices 2 installed in a distributed manner, and a method of managing the data created by the data creation function will be described below with reference to FIG.

FIG. 8 is a diagram showing the hierarchy of the terminal device data stored in the data management device 4, and the common data 41-
1 and 41-2 are data such as line types and names common to all terminal devices as a switching system. Among them, the common data (ASCII) 41-1 is the one in which the line name data is created in ASCII code, and the line name data is used for the terminal device which displays the line name on the liquid crystal display. It matches the LCD code. Similarly, the common data (shift JIS) 41-2 is
The line name data is created by the shift JIS code for the terminal device that displays the line name on the plasma display. It is not necessary to have two common data when the terminal devices are unified into either the liquid crystal display type or the plasma display type in one exchange system, but in the present embodiment both terminal devices are mixed. Will be explained.

The common data 41-1 and 41-2 are data for the lines in the switching system, only the line name code system is different, and the data of other line types have the same structure. The group data 42-1 forms a group of a plurality of liquid crystal display type terminal devices, and stores auto dial data, names of auto dial destinations, and the like common to the group. The group data 42-2 is data for a group similarly assembled by a plasma display type terminal device. Ascii personal data 43-1 consisting of personalized auto dials and auto dial names for each terminal device belonging to each group, and shift JIS
It has the personal data 43-2. These data are constructed by the data creation function of the data management device, and are ported to the terminal device by the download procedure described in the later section.

2. Data Management Device-Driven Download 2.1 Multipath Control FIG. 9 is a diagram for downloading data from the data management device 4 to the terminal device 2. In fact, in addition to the terminal device 2, a large number of devices and telephones. Etc. are connected, but are omitted because they are not relevant in this description. The common data, group data, personal data and programs created on the data management device 4 are RS-232C communication interface 7-
1 is transmitted to the terminal adapter 5 through the I.sub.2, converted into the B channel of the I interface 7-2 by the terminal adapter, and the I interface line circuit (I
LIN) 6. This I interface line circuit is a line circuit for connecting a general-purpose ISDN terminal. Next, the station data and the program pass from the interface line circuit 6 to the dedicated extension circuit (DLIN) 3 via the time division switch 7-3 in the speech path switch 1,
The terminal device 2 arrives again on the B channel of the ISDN interface 7-2. The above is the data flow when the data management device 4 and the terminal device 2 are in communication. The program is common to all terminal devices, common data is also common to each terminal device type, Is common to terminal devices in the same group. Therefore,
If these common data and programs can be simultaneously communicated to a plurality of terminal devices, it is not necessary to repeatedly communicate the same contents for each terminal device, and the communication time can be shortened.

Therefore, in the present invention, multipath control in which a plurality of terminal devices are multi-connected in a network of exchanges is performed, and common data and programs are simultaneously downloaded to the plurality of terminal devices. The method of this control is shown below. FIG. 10 shows the data management device 4 with respect to the terminal device 2.
A, 2B ... 2C are examples of multipath connection,
In reality the network is digital, but for convenience,
It is illustrated after being converted into an analog switch. The transmission data transmitted from the data management device 4 via the terminal adapter (TA) 5 and the I interface extension circuit (ILIN) 6 is the crosspoint 1A in the speech path switch 1.
-1, 1B-1 ... 1C-1 and then terminal devices 2A, 2B
... 2C is reached at the same time. With this method, data and programs common to all terminal devices can be set in all terminal devices by one-time communication. However, since personal data differs for each terminal device, it is necessary to sequentially select one terminal device and transmit the personal data, and for group data, select only terminal devices in the same group for multipath connection. Similarly, common data must be multipath-connected for each type of terminal device, and controlling the network connection each time makes the control information between the switching device and the data management device complicated. Not only that, it also takes a path connection time for network control between the data management device and the terminal device.

Therefore, according to the present invention, when all the data are simultaneously set in all the terminal devices, all the terminal devices are multipath-connected and all the data are transmitted to all the terminal devices. By adopting a method of selecting and receiving only data, the complexity of path control is prevented. Therefore, the telephone number of the terminal device is added to the head of the personal data as a personal data identification code that can be used to determine the terminal device uniquely, and the group data can also determine the group belonging to the head of the group data. A group number is added as a group data identification code, and the terminal type is also added to the common data at the beginning of the data, and the terminal device selects only personal data, group data, and common data that match itself and stores it in its own memory. It is stored on the device, and all data for other terminal devices are read and discarded.

2.2 Multipath signal synchronization method Since the network in FIG. 10 is a digital network, the signal level in the network is constant regardless of the number of terminals, so there is no need to consider signal attenuation, but communication is performed. The signal synchronization of is secured by the following method.
In the terminal device that the data management device 4 synchronizes for communication, the reception side of the data management device is crosspoint 1A-2.
Since it is connected only to the terminal device 2A, the data management device receives the multi-frame synchronization signal only from the terminal device 2A. Also, the multi-frame synchronization signal from the data management device is the crosspoints 1A-1 and 1B-1.
... Because it is transmitted to all terminal devices via 1C-1,
Reception synchronization of all terminal devices is established. That is, the data management device 4 is no different from the one-to-one communication with the terminal device 2A. The other terminal device communicates by utilizing the synchronization between the data management device 4 and the terminal device 2A. At this time, the clock signal, which is the basic signal for communication synchronization, is always a single clock in the entire system because the terminal device is connected to the ISDN interface and is clock-dependent, which is supplied from the switching system. There is no loss of synchronization due to the error.

2.3 Download Receiving Method The download receiving method will be described with reference to FIG. Since a general terminal device forms a part of the switching system by a calling signal from the switching device, loop control, etc., it is not necessary for the terminal device itself to recognize its own telephone number. However, the terminal device tends to be highly functional, and the terminal device according to the present invention has an expanded display function as shown in FIGS. 2 and 4 and has a function of displaying the extension number of the terminal device itself. . The function of the terminal device is not related to the present invention, and therefore its description is omitted. Since the terminal device itself has the function of displaying the extension number of the device itself, it is possible to always recognize its own extension number, and the extension number is used for correspondence between personal data and the terminal device. .

FIG. 11 schematically shows the flow of download data, which sequentially flows on the network in the order from the upper data to the lower data in the figure. The data is a series of personal data,
The group data, the common data, and the program are flowed in this order, and the personal data includes personal identification data 32A-1 ... 32B-1 by the extension number designated for each terminal device, and the following group numbers 32A-2 ... 32B-2. It consists of individual data, and the group data is group identification data 33A ...
The data 34A and 34B, which are common to each group formed after 33B and identify whether the common data is ASCII data or shift JIS data.
It is constructed following. As described above, since the extension numbers are individually notified to the terminal devices in advance, the personal identification data 32A-1 ... 32B-1 in the sent personal data.
The extension number shown in (1) is compared with the extension number of the terminal device itself, and personal data having matching personal identification data is stored in the storage device of the terminal device. Next, in the steps described above, the group identification data 32A-2 indicating the group number to which the terminal device belongs, which is included in a part of each personal data.
.. 32B-2 is set in its own storage device, so only the group data corresponding to the group to which the group identification number 33A ... 33B of the sent group data belongs. Stored on the device's storage device. By scanning the hardware of the terminal device, it is possible to identify whether or not the plasma display is connected to the terminal device, and the common data (ASCII) or hardware identification data 34B indicated by the hardware identification data 34A is used. Only one of the common data (shift JIS) shown is stored in the storage device of the corresponding terminal device. Further, if data indicating whether or not a plasma display is connected to each terminal device is included in the personal data and registered in each terminal device, the data can be displayed without scanning the hardware of the terminal device. The terminal device itself can select the common data and store it in each storage device. Since the program is common to all terminal devices, it is unconditionally stored in the storage device of each terminal device.

2.4 Format of Downloaded Data FIG. 12 shows the format of downloaded data. Downloaded data is classified into basic type, data identification text, valid data text, and sum check data text. The basic type (FIG. 12a) is an STX code indicating the start of a telegram, a text type code (TXT) indicating which text is the data identification text, valid data text, or sum check data text, and each text type. Followed by various data, followed by an end type code indicating the end of the text or the end of the block of the message. Then, a CR coded with CRC check data for ensuring communication reliability.
C0 and CRC1 are added to the final part to check the transmission error for each message.

The contents of each text are constructed on the basis of this basic type, and the details will be described below. Data identification text represented by text type code "0" (Fig. 1
2b) is common data, group data, personal data,
The contents of the valid data text located at the beginning of the program and following the data identification text are determined. Specifically, common data, group data, personal data, and programs are identified in the data classification code D1, and when the data identification code D1 is common data indicated by “0”, the classification corresponding data D2 Identification is made between ASCII data and shift JIS data. If the data identification code D1 is group data indicated by "1", the group number is set in the type corresponding data D2 and the data identification code D1 is set. If the personal data is indicated by "2", an extension number is set in the type corresponding data D2. The program having the data identification code D1 of "3" does not need the type-corresponding data 2 portion because all the terminal devices are targets for reception.

The valid data text (FIG. 12c) having the text type code "1" is located after the data identification text, and the contents of the address are sequentially transferred from the address indicated by the address D3 to the data string indicated by the data D4. It is being deployed. The end type code D5 is set to "ETB" or "ETX", which divides the data string of the data D4 into a certain length, and the CRC is set for each division.
Checking and improving the reliability of communication, ET
X means that the data of the type indicated by the data identification text, that is, the common data, the group data, the personal data, and the data of the program type have ended.

The sum check data text whose text type code is indicated by "2" (FIG. 12d) double-checks the normality of the data due to the communication error together with the CRC check. To do. Set the value of valid data text data D4 to 1
The sum data, which is a value obtained by sequentially adding 0 texts, is set to the sum data D7 of the sum check address data text. Address of sum check data text D6
Sets the same value as the leading effective data text address D3 at which the sequential addition for 10 texts is started.

2.5 Download Reception Program Communication control of the data management device at the time of downloading is
The description is omitted because it is a general-purpose control for the terminal adapter, but the terminal device that is the data receiving side must perform the control described in 2.3 Download Reception Method. The control method will be described below with reference to FIG.
FIG. 13 is an outline of the program, and since the part that actually receives the communication data is a known method, it is not specified in the figure and it is assumed that the data has been received in advance and the CRC check is normal. First, in step S1, the received text is read and the first text type in the text is identified. If the text is "0", the text is a data identification text, so in step S2 the data type following the text type is identified. . When the data identification code of the data text being processed is the "3" program, the next text is read in step S3-1 where all the terminal devices need to take in the communication data. If the data type code is "0", the hardware is scanned in step S3-2. If the terminal device is of the plasma display type, the code type is the shift JIS code to be processed, and in step S3-1, Start reading text.

If the data type code of the data text is "1", the data text being processed includes the group number. Therefore, in step S3-3, the group number in the data text is edited to change the internal format. And compares it with the own terminal group number in the own terminal device. If the comparison result is the same, it is necessary to read the text subsequent to the data identification text being processed as a processing target, so that the next text is read in step S3-1.

If the data type code of the data text is "2", the extension number is included in the data text being processed. Therefore, the extension number in the data text is edited in step S3-4. It is formalized, and this is also compared with the extension number of the own terminal device as described above. If the comparison result is the same, it is necessary to read the text subsequent to the data identification text being processed as a processing target, so that the next text is read in step S3-1. If none of the data type codes “0”, “1”, and “2” of the data identification text match the type, extension number, and group number of the own terminal device, data that is not applicable to the own terminal device follows. Therefore, it is discarded until the next data identification text. As a result, even if personal data or group data of all terminal devices are sequentially transmitted, unnecessary data can be read and discarded.

Next, when it is determined that the terminal device should receive the text, the text is read and the text type is identified in step S3-1. Text type code is "1"
In the case of, since it is a valid data text, step S
In 4-1 the address section is edited to determine the address of the internal format, and in step S4-2 the data string in the valid data text is sequentially edited from that address and set directly in the memory. At this time, since the sum check data for the sum check data text is actually created, the value set in the memory is added. If the end of the valid data text is ETX in step S4-3, the next text is read because there is a text that follows it.
In the case of, since the content of the next received data is different from the content currently being processed, the process returns to the first processing A again. At the time of text type identification, if the text type code is "2", it is the sum check data text. In step S5-1, the sum check data included in the sum check data text is edited, and in step S5-2 the memory setting is set. Compare the time sum data with the sum data in the sum check data text. If both thumb data are the same, it means that data reception and code conversion were performed normally, but if they do not match, it means that there was an error.
The fault is recorded in step S5-3. In this case, since it is meaningless to process the subsequent valid data text, other texts are discarded until the next data identification text is found.

2.6 Download Start Screen of Data Management Device FIG. 14 shows a case where a designated group is selected on the download start screen of the data management device. ALL is a case where all the terminal devices are to be processed, and the designated group specifies the group number with E1 and the terminal devices included in the group are the processing targets. When the designated terminal device is selected, E1
Is an extension number input, and in the case of up to 5 extensions or continuous extension numbers, inputting the first extension number and the last extension number makes the terminal device in the specified range to be processed I'm preparing. Further, at E2, up to four types of data to be downloaded to the terminal device to be processed are designated and the data can be downloaded. E
3 is for selecting download start or list display of completion status, which was started from the data management device, but when a communication error occurs due to factors such as when the user is actually using the terminal device, It is for notifying the maintenance person of the information.

2.7 Download Message Sequence Next, the interface between the data management device, the switching device and the terminal device will be described below. FIG. 15 is a sequence diagram when the download is started from the data management device to one terminal device. Since the data management device and the switching device are connected by the ISDN interface, information is exchanged by messages. Call setup G
1 is a kind of message in the ISDN interface, and what is shown in parentheses above the arrow is to enter a special number in the destination address information to recognize that the download is started. This means expanding the bitmap in the user information. Where I
Although the SDN message and each information element are not directly related to the present invention, only the destination address in the call setup message and the user-user information element in the call setup message will be described below.

The ISDN message is composed of a plurality of information elements, and a part of them is destination address information and user-user information. The destination address information is a portion in which the number dialed by the caller is stored, and usually the subscriber number of the called party to be called is entered. In the present invention, the special request number determined in advance by the station data of the exchange device is sent to the exchange device to notify it of the download request. Further, since the user / user information is 128 bytes or less and the content is arbitrary, in the present invention, the accommodation position in the exchange device of the terminal device to be downloaded is notified. This is called a bit map because the accommodating position is associated with each bit in order to notify multiple devices at the same time. next,
The switching device ISD indicates the connection status of the terminal device against the set value.
It is confirmed by the establishment of the layer 1 of N, and the state is converted into a bitmap and returned in the user / user information in the response message G2. The data management device can recognize whether or not the terminal device is connected at this point, and the data management device displays the connection status of the terminal device in the download status list after completion of the above-mentioned download indicating that there is an abnormal status. Accumulate. Since the ISDN sequence is disconnection after response, the disconnection sequence is entered from the data management device, the disconnection message G3 is transmitted, the switching device returns the release message, and the data management device transmits the release completion message.

Next, the data management device again performs the call origination operation and transmits the call setting message G4 to the switching device. The call setting message includes a special number indicating that downloading is actually performed, an end type, and a type of download data. This termination type is for identifying whether the terminal device may return to the online state after the download or waits for the next communication in the download state. Also,
The download data type indicates any one or a combination of personal data, group data, common data, and program data. In response to the call setting message G4, the switching device returns a calling message to the data management device, and sends a download request message G5 including the download data type to the terminal device. If the terminal device is not in use by the user, the terminal device returns the download preparation completion message G6 to the exchange device. This is to prevent the user from entering the download state when the user is busy or is registering the speed dial, and returns a download refusal message when the download cannot be accepted. The switching device connects the network from the accommodating position of the terminal device that has received the download preparation completion message, creates a bitmap again, and sends a response message G7 to the data management device. From this bit map, the data management device can identify whether the terminal device has accepted the download start. If not, the data management device accumulates data for displaying it in the above-mentioned download status list after completion of the download. . Here, the communication route between the data management device and the terminal device has been created, and the terminal device transmits data to the terminal device by the communication method described above.

When the data communication is completed, the data management device enters the disconnection sequence according to the ISDN communication sequence and sends the disconnection message G8. The switching device sends a release message to the data management device and a download confirmation message G9 to the terminal device. When the terminal device downloads this message as a result of the download and the data has no error, the download completion message G10 is added to the completion result normal and returned to the exchange. The switching device converts the download end status into a bitmap and sets the call setup message G1.
In step 1, the data is sent to the data management device, and whether the download result is normal or not is notified and the connection is disconnected. As a result, the data management device accumulates data for displaying whether or not the download is completed normally in the above-mentioned download status list. Finally, the data management device edits various download end states, outputs a download state list, and ends the download sequence. The above sequence is a description of a case where a sequence for simultaneous communication with a plurality of terminal devices, which is a feature of the present invention, is performed by a single terminal device, but downloading to a plurality of units in the same sequence will be described below. .

FIG. 16 shows a sequence for downloading to a plurality of terminal devices. The first difference from FIG. 15 is the call setup message H1 from the data management device.
The switching device determines the terminal device to be downloaded from the bitmap shown in the user information of the user and the download request message H2-
1, H2-2 are transmitted, and download preparation complete messages H3-1 and H3-2 are individually returned.
Is stored for conversion into a bitmap corresponding to the terminal device, and is returned to the data management device in the response message H4. The second point is confirmation of download completion, and download confirmation message H5-1, to multiple terminal devices.
H5-2 is sent and each download end message H
The point is that information is received at 6-1 and H6-2, the result is edited into a bitmap, and the result is returned at call setup H7. Transmission of the B channel is performed according to the flow shown in FIG.

3. Terminal device-led download 3.1 Differences from data management device-led download The data management device-led download described above
The download function is activated from the data management device, and it is possible to download to one terminal device or a plurality of terminal devices. On the other hand, in the terminal device-led download, the data download is activated from the terminal device side to the data management device. In the terminal device-led download, the control method among the terminal device, the exchange device, and the data management device is different, but the communication message and the like are the same as those in the data management device-led download.

3.2 Message Sequence FIG. 1 shows the control sequence of terminal device initiative type download.
This will be described below using 7. The terminal device transmits a download request message J1 to the exchange device. In this message, the type of data requested to be downloaded is specified. When the exchange receives this message, it sets the received extension number to the destination address in the call setup message J2, sets the fact that it is a download request and the data type requested to be downloaded in the user / user information, and sets the call. The setting message J2 is transmitted to the data management device. The data management device returns the response message J3 to enter the frame synchronization procedure for downloading. At this point of time, since the speech path of the switching device is not closed, the data management device is waiting for the establishment of frame synchronization. Next, the exchange device sends the message J
When 4 is transmitted, the terminal device starts frame synchronization establishment. In the terminal-initiated download, since the data management device and the terminal device are in a one-to-one relationship, the exchange device closes the call in both directions. Actually, since the process from the response message J3 to the closing of the communication path is performed in a short time, the frame synchronization is established instantly. When the frame synchronization is established, the data management device starts the transmission of the data designated by the call setting J2 and ends with the disconnect message J5 after the end of the data transmission. Upon receiving this disconnection message, the switching device releases the communication path. The data management device initiative type outputs the download status list at the end of data transmission, but in the terminal device initiative type download, the maintenance person is operating on the terminal device side, so the display of communication error is displayed on the liquid crystal display of the terminal device, Alternatively, the plasma display is used.

[0042]

As described above, station data and online programs can be downloaded to a plurality of terminal devices accommodated in the exchange. Furthermore, since each terminal device has the ability to select desired data or programs from the data or programs sent to each terminal device, it is possible to select all or any of a plurality of terminal devices to select station data or program data. Online programs can be downloaded at the same time. Therefore, it is possible to shorten the download time of data and programs to a plurality of terminal devices, and the download method that allows the switching operation of the switching device to be easy because the slave device receives only predetermined online programs or station data. can get.

[Brief description of drawings]

FIG. 1 is a diagram showing a relay system of a telephone conversion system according to the present invention.

FIG. 2 is a view showing a board surface of a terminal device with a liquid crystal display.

FIG. 3 is a functional block diagram of a terminal device with a liquid crystal display.

FIG. 4 is a view showing a board surface of a terminal device with a plasma display.

FIG. 5 is a functional block diagram of a terminal device with a plasma display.

FIG. 6 is a diagram showing a memory configuration of a terminal device.

FIG. 7 is a block diagram of a dedicated extension circuit.

FIG. 8 is a diagram showing a configuration of terminal device data in the data management device.

FIG. 9 is a diagram showing a download communication state.

FIG. 10 is a multipath connection diagram.

FIG. 11 is a diagram showing a flow of download data.

FIG. 12 is a diagram showing a download text structure.

FIG. 13 is a diagram showing an outline of a download program.

FIG. 14 is a diagram showing a download screen.

FIG. 15 is a diagram showing a data management device-initiated individual download sequence.

FIG. 16 is a diagram showing a data management device initiative type multiple download sequence;

FIG. 17 is a diagram showing a terminal device initiative type download sequence.

[Explanation of symbols]

1 Call path switch 2, 2'terminal device 3 Dedicated extension circuit 4 Data management device 5 terminal adapter 6 Interface extension circuit 7-1 Communication cable 7-2 Connection cable 8 trunk 9 Central control unit 10 storage device 11 Control system bus 20 Incoming Ringer 21 line button 22, 24 Indicator lamp 23 Auto dial button 25 handsets 26 Liquid crystal display for line name display 27 Hold button 28 disconnection button 29 Dial keys 30 storage devices 211 Call control processor 212 ROM 213 RAM 214 control bus 215 Call control message send / receive buffer 216 Receiver circuit 217 Transmitting circuit 219 ISDN D channel 220 ISDN B channel 221 LCD display controller 222 lamp driver 223 Button scan buffer 224 Ringer Driver 225 speed conversion circuit 226 Communication controller 227 Direct Memory Access Controller 228 Plasma Screen Controller 229 screen memory 230 touch information receiver 301 Processor 302 ROM 303 RAM 304 DLIN control bus 305 Call control message send / receive buffer 306 Transmitter circuit 307 Receiver circuit 308 Control information transmission / reception buffer

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Osamu Nagao 94, Senba, Koriyama City, Fukushima Prefecture, inside Hiritsu Telecom Technology Co., Ltd. (56) References JP 59-58995 (JP, A) JP 63- 78696 (JP, A) JP-A 1-276953 (JP, A) JP-A 62-53097 (JP, A) JP-A 63-158953 (JP, A) JP-A 4-61457 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04M 3/00 H04M 3/16-3/20 H04M 3/38-3/40 H04Q 3/54-3/56

Claims (3)

(57) [Claims] 1. A download method in an exchange system comprising a plurality of slave devices, a master device for managing these slave devices, and a switching device for connecting the slave devices to the master device. to the step of requesting connection between the main device and a plurality of slave units, in accordance with exchange apparatus is a request from the main unit, Oh from the main unit
Online program or station data to multiple slaves
The master device and the plurality of slave devices so that they are sent simultaneously.
And one of the plurality of slave devices.
So that the synchronization signals from the two slave devices are sent to the master device
Follow the steps and, the synchronization signal from the main device the one of the slave devices connected to
There, said the online program or station data
A step of simultaneously sending to a plurality of slave devices . 2. The download method according to claim 1, wherein the main device includes a step of arbitrarily selecting a plurality of slave devices to be multi- connected. 3. An online program or station data that is sent at the same time has common data, group data,
The download method according to claim 1, further comprising a step of adding a data type code for identifying the personal data or the program.