JPS6012855A - Information transfer system - Google Patents

Abstract

PURPOSE:To transfer information easily between an information collecting and transferring device and plural terminal equipments by providing the information collecting and transferring device with an information sending control part and plural circuit control parts and providing each terminal equipment with an information reception control part. CONSTITUTION:In the information collecting and transferring device 1, an information collection control part 11 collects and edits various information A momently changed and sends the result to an information sending control part 12. The control part 12 adds an identification code consisting of a start code and an end code to the collected information and sends the code-added information to plural circuit control parts 13a-13n at the same period as a period collecting the information in the control part 11. Detecting signal in coming from optional terminal equipments 2a-2n, the control parts 13a-13n repeat information distributed from a braking part 12 until an end signal is detected. On the other hand, information reception control parts of the equipments 2a-2n detect start codes from receiving information sent through an exchange 3 and display the collected information on display parts until the end signal is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information transfer system for transferring constantly changing information via a telephone switching network.

Traditionally, when information is transferred via a switched telephone network,
The information sending device and the information receiving device use a known network control device to send and receive various control signals to establish a data link, and then transfer and receive data. However, for example, if there is a new connection request from the No. 1 terminal while data is being transferred to the No. 1 terminal,
Dual processing must be performed, including the data transmission operation to the terminal No. 0 and the control operation for establishing a data link with the terminal No. 61. Therefore, when it is necessary to simultaneously transfer data from an information transmitting device to a plurality of information receiving devices, the information transmitting device has to perform multiple processing. This has the disadvantage that processing operations become complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide an information transfer method that eliminates the above-mentioned drawbacks and can easily transfer information to and from a plurality of terminal devices.

In the information transfer method of the present invention, in an information collection and transfer device and a plurality of terminal devices connected via a telephone switching network, the information collection and transfer device assigns a start identification code and an end identification code to collected information that changes from time to time. an information transmission control section that adds and repeatedly transmits the information, and a plurality of lines that relay the information that is distributed by the information transmission control section until a termination signal is detected when an incoming signal from an arbitrary terminal device is detected. has a control section,
The terminal device is characterized in that it has an information reception control section that connects to the line control section via a switching network to receive the information and uses the collected information after the start code.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an information transfer system based on the present invention. 2 and 3 are a circuit diagram and a block diagram, respectively, showing a specific embodiment of the line control unit and terminal device in FIG. 1.

The information collection and transfer device 1 includes an information collection control section 11, an information transmission control section 12, and line control sections 138 to 13n. The information collection control section 11 collects and edits various information persons that change from time to time, and sends the results to the information transmission control section 12.

The information transmission control unit 12 adds an identification code of 0 to the collected information sent. As this identification code, for example, an 8TX code is added to the beginning as a start code, and an ETX code is added to the end as an end code. At this time, it is necessary that the STX and nTX codes do not match the data codes included in the collected information. The start and end codes are 8TX, ETX
It is not limited to the code. The information transmission control section 12 transmits a plurality of line control sections 13a, i3b...13 at the same cycle as the information collection control section 11 collects information.
11, the information consisting of the STX code, collected information, and i3'i'X code is converted into a signal that can be transmitted over the line by a modem or the like and sent. If the information collection control unit 11
The information collection cycle is long, and the information (8TX
(10 codes, 10 collected information, 10 ETX codes) from multiple terminal devices 2a~
If it is possible to send and output multiple times to 2n, the value of '1 may be set as the information sending cycle of the information sending control section 12. The information transmission control unit 12 provides information (STX code + collected information + ETX code)
It is not necessary to know whether or not the information is being transmitted to the subscriber terminals 28 to 2n. In this way, the information transmission control section 1
In No. 2, a start code and an end code are added to the repeatedly collected information and sent.

On the other hand, the information collection and transfer device 1 is transmitted from the telephone 24 of any terminal device 2j on the side of the plurality of terminal devices ffk2a to 2n.
It dials one of its own plurality of subscriber numbers or the representative number assigned to FL1 after information collection and transfer, and calls it via the switching network 3.

For example, if a subscriber number corresponding to the line control section 13a is dialed, a ring tone signal will be sent to the switching network 3 if the line control section 13a is empty. Since the ringing signal is an intermittent alternating current signal, the relay R is operated via the capacitors Go and Ci and the rectifier Do=Ds in FIG. The relay T is operated by the contact r of the relay R, and a response is returned to the switching network 3 via the resistor Rr and the coil L, and the switching network 3 stops the ringing sound. Therefore, in any terminal device 2j on the calling side, the coil L
The signal sent out by the information sending control section 12 can be received via the information sending control section 12. And in the terminal device 2j, the third
As shown in the figure, the converted signal is relayed as a 1-change* signal from the telephone 24 to the information reception time control unit 21 via the acoustic power converter 23 or the like. The information reception control unit 21 detects the start code from the received information and displays the collected information up to the end signal on the display unit 22. At this time, it is also possible to add various processing to the collected information and display it as necessary. When it becomes unnecessary to receive information at any terminal device 2j, the terminal device 2j may transmit a signal of a special frequency, etc. to the second terminal device 2j.
The filter FIL, which is sensitive only to the special frequency shown in the figure, detects this signal, operates the relay Sf, restores the relay T, and indicates to the switching network 3 that the line control unit 13a has been restored.

On the other hand, the terminal device 2j confirms that the line control unit 13a has been restored because the information becomes difficult and releases it from the telephone 24.

The above explanation has been made regarding the case of information transfer due to a transmission request from any one terminal device 2j, but if a connection request from another terminal device 2k occurs at the same time or while connected to any terminal device 2j, exchange may occur. Even if a call arrives via the network 3, if the information collection and transfer device 1 has a representative number, it will repeatedly transfer the collected information to multiple terminal devices corresponding to the line capacity from the time the call arrives until the end. The control devices 11, 12 do not need to be concerned with the status of each of the terminal devices 2a to 2n, and the processing operation is simplified.

Furthermore, in the above explanation, the information transmission control section 12 always transmits the collected information, but only when at least one relay T of any one of the line control sections 132 to 13fl of the multiplexes is operating. , it is also easy to send out information. Furthermore, if the terminal devices 2a to 2n are FB telephones, these PB frequencies can be used without requiring a special device for the recovery signal.

As is clear from the above description, the present invention does not require complicated control between the information collection and transfer device and the terminal device, and also allows information transfer lines to be transmitted to multiple terminal devices at the same time. Furthermore, if you have a reception control device or the like in a place where a terminal device Hiroden is installed, you can see the collected information that changes from moment to moment at any time.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing one embodiment of the present invention, Fig. 2, Fig. 3
The figures are a circuit diagram and a block diagram, respectively, showing an example of the integrated egg control unit and terminal device in FIG. 1.

Claims (1)

[Claims] In an information transfer method that transfers information from an information collection and transfer device to a terminal device connected via a telephone switching network, the information collection and transfer device adds an identification code to the collected information that changes from moment to moment and sends it back. and a plurality of line control units that relay the information that is distributed from the information transmission control unit until an end signal is detected when an incoming signal from an arbitrary terminal device is detected, An information transfer method characterized in that a device connects to the line control unit via a switching network, receives the information, and displays the collected information.