JPH0754984B2 - Information system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial Field B Outline of Invention C Prior Art D Problems to be Solved by the Invention E Means for Solving Problems (FIGS. 1 and 2) F Action (FIGS. 1 and 2) Figure) G Example (G1) Configuration of information system (Figs. 2 and 3) (G2) Basic data processing procedure (Figs. 1, 4, and 5) (G3) Operation of information system Modes (Figs. 1 to 5) (1) Page image display mode, television image display mode, composite screen display mode (2) Arrival / exit mode (3) Vehicle dispatch request mode (4) Emergency / e-mail mode ( 5) On / Off Control Mode of Monitor 22 (G4) Other Embodiments H Effect of the Invention A Field of Industrial Application The present invention relates to an information system, and particularly to a specified distribution destination such as in one company. To provide image information from

B. Summary of the Invention The present invention has been developed in a terminal device in an information system adapted to display a television image signal supplied from a CATV line and page image data supplied from a video text database in the terminal device. By generating the device control data in the host computer based on the request data so that the page image data or the television video signal is selectively taken into the terminal device and displayed, the television system supplied from the CATV line. The page image data supplied from the video signal and video text database,
The terminal device can be easily incorporated into the terminal device as needed.

C Conventional Technology Conventionally, for example, an information system has been proposed in which various types of in-house information are supplied from a center to terminal devices provided at a large number of distribution destinations within one company.

D. Problems to be solved by the invention However, the information that can be distributed by the conventional information system is basically limited to the information consisting of the arrangement of symbols, numbers, characters, etc. Even if the information is provided, The content is only in a form that is difficult to grasp intuitively, and it was insufficient to distribute a wide variety of information with rich content.

The present invention has been made in consideration of the above points, and it is possible for a terminal device to receive information consisting of various television video signals supplied from general broadcasting, satellite broadcasting, video recording devices, etc. via a CATV line. In addition to being able to perform, page image data accumulated in the video text database provided in the center and internal communication data created every day within the company (for example, information on the attendance and leaving of executives, e-mail information between each section, etc.) It is intended to propose an information system which is constructed so that the terminal device can receive it and thus the whole system is made as easy to use as possible.

E Means for Solving the Problems In order to solve the problems, in the present invention, the video text database 6 in which page image data is stored is stored.
And a center 3 having a host computer 4, and a plurality of terminal devices 1A, 1B ... To which a television image signal is supplied via a CATV line 10 and page image data is supplied via a communication network 2. Each terminal device 1A, 1B ...
... are the key input units 23 and 24 for generating the requested data, respectively.
A switch means (58) for selectively outputting the television image signal and the page image data by supplying the television image signal to one input and the page image data to the other input, and the switch means (58). It has a monitor 52 for displaying the output signal of 58 and a control means 44 for controlling the switching operation of the switch means 58 based on the control data. The host computer 4 has each terminal device 1A via the communication network 2,
1B ... has a device control data generating means for generating device control data corresponding to the request data and a reading means for reading out the page image data corresponding to the request data from the video text database. Via the host computer 4 via the terminal device 1A for which request data for page image data is generated,
The control means 44 of the terminal devices 1A, 1B ... In which the device control data is supplied to the other input of the switch means 58 of 1B.
The control means 44 is provided with a switch means 58 so that the television image signal and page image data are selectively supplied to the monitor 52 based on the device control data.
To control.

F-action request data generated in the terminal devices 1A, 1B ... Is supplied to the host computer 4 provided in the center 3 by using each device constituting the terminal devices 1A, 1B. The host computer 4 generates device control data corresponding to the request data and sends it to the terminal devices 1A and 1B.
Control each device by supplying ... Thus, the respective devices constituting the terminal devices 1A, 1B, ... Under the control of the host computer 4, selectively take in page image data or television image signals and display them on the CRT 54.

In this way, the television image signal supplied from the CATV line 10 and the page image data supplied from the video text database 6 are naturally selected under the control of the host computer 4 and the terminal devices 1A, 1B ... Can be taken into. Thus, with a simple configuration as a whole, the operation mode of each device constituting the terminal devices 1A, 1B ... Can be controlled so as to match the signal format of various information.

G Example Hereinafter, the drawings will be described in detail as examples when the present invention is applied to an information system in one company.

(G1) Configuration of Information System FIG. 2 shows the information system as a whole, and a large number of terminal devices 1A, 1B, ... Installed in predetermined departments in the company are connected to the center 3 via the communication network 2, respectively. . In the case of this embodiment, the information system is arranged to distribute information necessary for business management to each section constituting the management department of the company, and the terminal devices 1A, 1B ... It is provided in the office of the manager.

The center 3 includes a central processing unit 5 controlled by a host computer 4, a video text database 6 storing page image data, and an input unit 7.

When a request is issued from the terminals 1A, 1B, ..., The host computer 4 receives the request via the communication network 2, reads the corresponding page image data from the video text database 6, and sends the request via the communication network 2. Issued terminal device 1A, 1B
Supply to ... In addition to this, the central processing unit 5 is based on the data input from the input unit 7 of the center 3 even if there is no request from the terminal units 1A, 1B. Predetermined page image data can be supplied to the devices 1A, 1B, ..., whereby emergency information can be distributed.

Further, the center 3 has a data / video conversion device 8 and operates the data / video conversion device 8 when predetermined page image data (that is, “enter / leave table” page image data) is retrieved from the video text database 6. Then, it is converted into a TV video signal TVIN _I and supplied to the CATV line 10.

The CATV line 10 is from a general broadcast received by the television antenna 15, a satellite broadcast (for example, meteorological broadcast) received by the parabolic antenna 16, and another television video signal source 17 (for example, a video signal recording device). In response to the obtained television image signal TVIN _O , the terminal device 1
Supply to A, 1B ... and television receivers 11A, 11B. Here, the television receivers 11A, 11B ... Are provided in, for example, an employee cafeteria, a lobby, etc., and are capable of providing television image information to general employees.

In addition to the above configuration, the information system of FIG. 2 is configured so that the center 3 can be connected to the vehicle dispatch center 19 via the communication network 2, and thus the terminal devices 1A, 1B ... When a request is made, the host computer 4 instructs the dispatch center 19 to arrange a dispatch through the communication network 2,
Upon receiving the report of the result, the terminal device that has received the request can be notified of that fact.

Further, the communication network 2 is coupled with input devices 12A, 12B, ... Arranged at predetermined positions other than the terminal devices 1A, 1B, ..., For example, code data designating emergency information can be inputted. There is.

As shown in FIG. 3, the terminal devices 1A, 1B, ... Have a video text data processing device 21, a monitor 22, a master key input device 23, and a slave key input device 24.

The video text data processing device 21 has a central processing unit (CPU) 31 of a micro computer configuration, and a bus 32
It is connected to the communication network 2 through the bus 32, the input / output device 34, and the modem 35 according to the program read from the program ROM 33 through the RAM 36 when the page image data is fetched through the modem 35 and the input / output device 34. Data processing.

The CPU 31 of the video text data processing device 21 is connected to the master device key input device 23 through the input / output device 37. The master key input device 23 has a CPU 41, a program ROM 42, a RAM 43 and an input / output device 44 of a one-chip microcomputer configuration, and when each key of the key matrix 45 is operated by a key top arranged on the keyboard. After the CPU 41 fetches the input data into the RAM 43 through the input / output device 44 in accordance with the program of the program ROM 42, it can be transferred to the CPU 31 through the input / output device 44 and further through the input / output device 37 of the video text data processing device 21. It is done like this.

On the contrary, the CP of the video text data processing device 21
When the code data for remote controlling the monitor 22 is given from U31, the input / output device 44
The remote control signal RMT is transmitted through. Further, the CPU 31 of the parent device key input device 23 receives the lighting command data or the alarm command data from the CPU 31 through the input / output devices 37 and 44, and operates the display element 46 made of, for example, an LED or the alarm element 47 made of, for example, a buzzer.

The child device key input device 24 has a key switch 48 whose opening and closing is controlled by operating a key top, and the input data thereof is sent to the CPU 41 via the input / output device 44 of the parent device key input device 23.
Is supplied to. Here, the key switch 48 is a key switch (“attended” switch, which is a part of the key switch included in the key matrix 45 of the master key input device 23,
There is a one-to-one relationship between the "away" switch, the "absent" switch, and the "distributed switch"), and thus the key input is the same as when the keys of the key matrix 45 are operated by the key switch 48. Data can be supplied to the CPU 41.

Further, the child device key input device 24 has a display element 49 and an alarm element 50 corresponding to the display element 46 and the alarm element 47 of the parent device key input device 23, and when the display element 46 and the alarm element 47 operate, It is controlled by the master key input device 23 so as to operate in parallel with this.

The monitor 22 is a TV video signal TV from the CATV line 10.
It has a television signal receiving section 51 for receiving IN _O. The television signal receiving section 51 selects one of a plurality of channel television image signals coming from the CATV line 10 by a built-in television channel circuit, and then similarly uses a built-in standard television. Three primary color signals RGB1 having the format of a standard television system (for example, NTSC system) television signal in the digital signal decoding circuit.
Through the switch circuit 53 of the display device 52 to the cathode ray tube (CR
T) 54, thus displaying the reproduced image of the television video signal received on the CRT 54.

Similarly, the television signal receiving unit 51 reproduces the audio signal AUD1 from the television signal received by the channel selection and supplies the audio signal AUD1 to the speaker 56 through the switch circuit 55 of the sound device 58, thereby selecting the channel. Reproduces the sound of the received TV video signal.

The reception tuning operation of the television signal receiving section 51 is controlled by the control signal CON1 of the remote control circuit 57. The remote control circuit 57 has a remote control signal RMT supplied from the master key input device 23.
The corresponding control signal CON1 is supplied to the television signal receiving section 51. At the same time, the remote control circuit 57 controls the switch circuits 53 and 55 by the control signal CON2 while controlling the television signal receiving section 51 by the control signal CON1 to output the three primary color signals RGB1. The audio signal AUD1 is supplied to the speaker 56 while being supplied to the CRT 54.

Here, in the parent device key input device 23, the key matrix 45 has a television reception mode (that is, a "television" display mode).
When the designated tuning operation is performed, the CPU 41 sends the corresponding remote control signal RMT via the input / output device 44 to control the television signal receiving section 51 to the tuning receiving state. When the key matrix 45 of the master key input device 23 is designated to the page image data reception mode (that is, the "management information" display mode), the remote control circuit 57 activates the switch circuits 53 and 55 by the control signal CON2. A switching operation is performed on the video text data processing device 21 side.

Further, the remote control circuit 57, when the key matrix 45 of the main unit key input device 23 is designated in the superimpose reception mode (that is, "screen composition mode"),
According to the control signals CON1 and CON2, the television video signal RGB1 and the audio signal AU of the television signal receiving unit 51
Input D1 to the switch circuits 53 and 55. At this time, the video text data processing device 21 determines the image display signal VTX based on the key input data input from the master key input device 23.
The switch circuit 53 is alternately switched by the superimpose bit SPI included in the above, thereby displaying a screen in which the image display signal VTX is superimposed on the television image signal RGB1.

The video text data processing device 21 has a video RAM 61 for supplying an image display signal VTX to the monitor 22 and a sound generator 62 for supplying an audio signal AUD2 to the monitor 22.

The video RAM 61 obtains the display signal RGB2 for displaying the page image on the CRT 54 and the superimpose bit YS based on the page image data coming from the communication network 2 via the modem 35.

When the CPU 31 converts the page image data into the image display signal VTX and displays it on the CRT 54 of the monitor 22, the sound generator 62 generates a sound indicating this (for example, a click sound) under the control of the CPU 31. As a result, the user can be audibly notified of the arrival of new image display data.

In this way, the terminal device from the center 3 via the communication network 2
The page image data transmitted to 1A, 1B, ...
And is displayed on the CRT 54 of the monitor 22, and at the same time, an audio signal AUD2 is generated in the sound generator 62 each time page image data arrives.

The video text data processing device 21 includes a printer 6
3. The recording device 64 is connected so that the page image data transmitted from the center 3 to the CPU 31 can be printed out and recorded.

(G2) Basic data processing procedure With the above configuration, the information system is the terminal device 1A, 1B.
The center 3 creates the device control data based on the request from the ..., and the device control data controls the respective devices of the terminal devices 1A, 1B. Responsive to display a screen based on the signal.

That is, in step SP1 of FIG. 1, when the user operates a desired key using the master device key input device 23 of the terminal device 1A, 1B ..., The CPU 41 of the master device key input device 23 responds to the following operation. The code data corresponding to the key operated in step SP2 is sent to the video text data processing device 21 through the input / output device 44.

At this time, the CPU 31 of the video text data processing device 21 fetches the code data from the master key input device 23 through the input / output device 37 in step SP3 and converts it into a code which can communicate with the center 3 and then in step SP4. It is determined whether or not a key for controlling the function of the video text data processing device 21 itself has been operated. If a positive result is obtained here, the CPU 31 moves to the next step SP5 and executes the processing. The processing of the video text data processing device 21 itself includes a two-screen mode and a recording device.
There are processes such as recording and reproducing page image data on the 64, and printing out the data to the printer 63.

On the other hand, if a negative result is obtained in step SP4, the CPU 31 of the video text data processing device 21 moves to step SP6 and sends the key input data to the center 3 via the communication network 2.

Here, when controlling functions other than the video text data processing device 21, a request for pulling out page image data stored in the video text database 6 of the center 3, a request for inputting page image data for the entry / exit table, a dispatch center There is a vehicle dispatch request to 19, and a request to set the display mode of the monitor 22.

At this time, the host computer 4 of the center 3
After receiving and storing the key input data in SP7, the process corresponding to the key input data is executed in the next step SP8, and the page image data or the device control data is sent via the communication network 2 as a response to the request. Send back to the requesting terminal.

The center 3 stores the request data coming from the terminal at step SP7 each time the display mode is specified, the reception channel is specified, and the page image data to be retrieved is specified from the terminal devices 1A, 1B .... By doing so, it is possible to create data for grasping the operational status of the information system.

At this time, in the terminal device, the CPU 31 of the video text data processing device 21 receives the data sent from the center 3 through the communication network 2 at step SP9, and the data sent at the next step SP10 is the device control. Judge whether it is data or not.

Here, the device control data means control data for all the devices that the host computer 4 needs to control when viewed from the host computer 4 of the center 3, and the first control item is the video text data processing device 21. 2 has an item for controlling the display mode when displaying image data on the monitor 22, and a second item for controlling the master unit key input device 23 and the slave unit key input device 24. Among the control items for the master key input device 23, the items for controlling the display element 46 and the alarm element 47 included in the master key input device 23 and the items for controlling the output of the remote control signal RMT to the monitor 22. And are included.

On the other hand, when the data transmitted from the center 3 to the video text data processing device 21 is not the device control data, it becomes the page image data extracted from the video text database 6 of the center 3.

Therefore, when the CPU 31 of the video text data processing device 21 obtains a negative result in step SP10, it executes step SP11.
Then, in the video RAM 61, the page image data is decoded into the display signal RGB2, and the sound generator
By driving 62, an audio signal AUD2 is generated.

At this time, the monitor 22 displays the image signal RG at step SP12.
B2 is displayed on the CRT 54, and an audio signal is generated in the speaker 56 based on the audio signal AUD2.

On the other hand, if a positive result is obtained in step SP10,
The CPU 31 proceeds to step SP13 of FIG. 1 and determines whether the content of the data transmitted from the center 3 is data for controlling the output mode of the video text data processing device 21 itself. If a positive result is obtained here,
The CPU 31 executes the processing corresponding to the output mode control data transmitted in step SP14 inside the video text data processing device 21. This process
Actually, the CPU 31 reads the program corresponding to the transmitted output mode control data from the program ROM 33, and the video RAM 61 and the sound generator 62.
It is executed by controlling.

On the other hand, if a negative result is obtained in step SP13, the CPU 31 proceeds to next step SP15. This step SP1
Reference numeral 5 is a step for judging whether or not the device control data transmitted from the center 3 is control data for the master key input device 23 (and the slave key input device 24), and a negative result is obtained. This means that the content of the device control data is the control data of the printer 63 or the recording device 64 provided in the video text data processing device 21,
Accordingly, the CPU 31 moves to step SP16 and executes the control operation of the printer 63 and the recording device 64.

On the other hand, when a positive result is obtained in step SP15, this means that the content of the device control data transmitted from the center 3 is the control data for the master key input device 23, and therefore the CPU3
In step SP17, the control data is converted into a code which can be easily processed by the CPU 41 of the master key input device 23 and transmitted to the CPU 41 of the master key input device 23.

At this time, the CPU 41 receives the transmitted control data in step SP18, and then moves to step SP19. This step SP19 is a step for judging whether or not the transmitted control data is data to be processed inside the master unit key input device 23 and the slave unit key input device 24, and the master unit key input device 23 The CPU 41 executes this judgment, and when a positive result is obtained, the CPU 41 performs processing in step SP20 based on the contents of the control data. As the processing, the master unit key input device 23 and the slave unit key input device
There is a process of driving the 24 display elements 46 and 49 and the alarm elements 47 and 50. Here, the display element 49 and the alarm element 50 of the child device key input device 24 are simultaneously driven in parallel with the display element 46 and the alarm element 47 of the parent device key input device 23 under the control of the CPU 41.

On the other hand, when a negative result is obtained in step SP19, this means that the content of the transmitted device control data is not the control data of the master device key input device 23 and the slave device key input device 24 itself. It means that the CPU 41 of the master device key input device 23 is set to step SP2.
Move to 1 and send remote control signal RMT.

At this time, the remote control circuit 57 of the monitor 22 causes the remote control signal RMT at the next step SP22.
The TV signal receiving unit 51
Or a control signal CON2 for the switch circuits 53 and 55 of the display device 52 and the sound device 58.

Thus, the remote control circuit 57 receives the signal by switching the switch circuits 53 and 55 to the television signal receiving unit 51 side by selecting a channel to be received according to the content of the remote control signal RMT. The video signal is displayed on the CRT 54, and the sound is generated from the speaker 56. Further, the remote control circuit 57 uses the control signal CON2 to switch the switch circuit 53 and the switch circuit 53 according to the content of the remote control signal RMT.
By switching 55 to the video text data processing device 21 side, the image display signal VTX from the video text data processing device 21 is displayed on the CRT 54, and the sound based on the output AUD2 of the sound generator 62 is generated from the speaker 56. It

As described above with reference to FIG. 4, the information system shown in FIGS. 2 and 3 includes the video text data processing device 21, the monitor 22, the parent device key input device 23, and the child devices which constitute the terminal devices 1A, 1B. The machine key input device 24 performs a series of sequence operations under the control of the host computer 4 of the center 3 1
By forming the two systems, the transmission system of the page image data stored in the video text database 6 of the center 3 and the transmission system of the television image signal are
It is possible to construct an information system that is connected so as to have practically sufficient consistency in the terminal devices 1A, 1B ....

Then, when the key operation for requesting the distribution of arbitrary information from each of the terminal devices 1A, 1B, ... Is made at the master device key input device 23 or the slave device key input device 24, the input data is stored. Video text data processor 21
Through the host computer 4 of the center 3, and after the host computer 4 has performed the data processing necessary for the management of the information system, it creates device control data based on the processing result and stores it. Video text data processing device 21, monitor 22 system, or video text data processing device 21, master device key input device 23, monitor
By going down to the 22 system, the entire information system is controlled as one.

The master device key input device 23 and the slave device key input device 24 include, for example, the keyboards of the configurations shown in FIGS. 4 and 5, and are adapted to input data through the keyboards. In response to this, the following action is taken.

In FIG. 4, reference numeral 71 denotes a monitor operation mode switching switch for designating the display mode of the monitor 22, which is a "management information" switch 71A for displaying a page image and a superimposed display of the page image for the television image. It is composed of a "screen composition" switch 71B for displaying and a "TV" switch 71C for displaying a television image.

72 is a numeric keypad operated when entering numerical data, 73
Represents a page data designating key operated to designate the page number when reading out the page image data stored in the video text database 6, and includes fixed keys K _{1 to} K ₁₄ and free keys F ₁ to. It consists of F ₁₄ and.

74 is an entry / exit input switch, which is an "attendance" for the user to enter his / her individual situation when he / she is present, away, or absent.
Switch 74A, "away" switch 74B, and "absent" switch 74C. Further, each switch is provided with lamps 74AX, 74BX, 74CX which are lit and displayed by the center 3.

Reference numeral 75 is a specific function key, which is operated when inputting a specific function.

Reference numeral 76 denotes a "vehicle allocation" switch, which is operated when the terminal device issues a vehicle allocation request to the vehicle allocation center 19.
The lamp 76A is turned on when the vehicle is accepted at the vehicle, and when the vehicle allocation at the vehicle allocation center is completed, the vehicle allocation completion lamp 77
Is lit.

Reference numeral 78 denotes a buzzer, which sounds when a vehicle is dispatched or when emergency information is distributed for a predetermined time, for example, 3 seconds.

Reference numeral 79 is an "emergency / e-mail" switch, which is operated when transmitting a message from the terminal device to another terminal device.

Reference numeral 80 denotes an "emergency display" lamp, which is lit and displayed when emergency information is distributed from the center 3.

Reference numeral 81 is a "TV power" switch, which is operated when the monitor 22 is turned on.

Further, in the child device key input device 24 of FIG. 3, 24A is the "present" switch, 24B is the "away" switch, and 24C is the "absent" switch.
The switches and 24D are "distributed" switches, and correspond to the switches 74A, 74B, 74C, and 76 of the parent device key input device 23.

24E is a vehicle dispatch buzzer and 24F is a vehicle dispatch completion lamp, which correspond to the buzzer 78 and the indicator light 77 of the master device key input device 23, respectively.

(G3) Information system operation mode (1) Page image display mode, television image display mode, composite screen display mode As shown in FIG. 4, the master unit key input device 23 is used as a monitor operation mode switching switch 71. "Management information" switch
71A, "Screen Composition" switch 71B, "TV" switch 71
When the switch 71A is operated, the page image data accumulated in the video text database 6 of the center 3 when the switch 71A is operated is pulled out by designating the page number by the ten key 72 or the switch 73, and the monitor 22 You can specify the operating mode as displayed above.

The switch 71B is similarly operated by the numeric keypad 72 or switch 7.
By operating page 3, page image data is extracted from the video text database 6 via the communication network 2, and this page image data is superposed on the television image signal supplied from the CATV line 10 to monitor 22. You can specify the operating mode as displayed above.

Further, the switch 71C can specify an operation mode for displaying on the monitor 22 the television image signal of the channel designated by the ten key 72 among the television image signals supplied through the CATV line 10.

When these switches 71A to 71C are operated, steps (SP1, SP2), (SP3, SP4, SP6), (SP
Input data goes up to the host computer 4 of the center 3 by the processing procedure of 7, SP8). At this time, the host computer 4 creates data including device control data for controlling the video text data processing device 21, the master key input device 23, and the monitor 22 in the operation mode corresponding to the input data in step SP8. , Let this go down through the loop below step SP9.

First of all, when the "Screen composition" switch 71B is operated,
First, the video text data processing device 21
In addition to controlling the operation mode in which X can be output, the master key input device 23 is controlled in the operation mode in which the remote control signal RMT can be transmitted, and the monitor 22 is further connected to the CATV line 10.
From the host computer 4 of the center 3, data including device control data for controlling an operation mode for fetching a television signal from the center 3 is transmitted.

Video text data processing device 21 that received this data
Operates in response to the device control data given to itself by the steps (SP9, SP10, SP13, SP14), and at the same time the steps (SP13, SP15, SP17, SP1).
8, SP19, SP20) to set the master key input device 23 to the operating state in response to the contents of the device control data, and in step SP21, the master key input device.
By sending the remote control signal RMT from 23, the monitor 22 is set to the screen compositing operation mode in step SP22.

Thus, the monitor 22 displays a screen in which the three primary color signals RGB1 supplied from the television signal receiving section 51 and the image display signal VTX output from the video RAM 61 are combined (that is, the page image data on the image based on the television image signal). The image is composed of a superimposed image) and is set to an operation mode that can display.

At this time, the page designation input and the reception channel designation input which are input by using the ten-key pad 72 sequentially go up to the host computer 4 of the center 3 by the loop of the steps (SP1 to SP8) described above.

As a result, the page image data extracted from the video text database 6 in step SP8 is decoded into the image display signal VTX in the video text data processing device 21 in step (SP9, SP10, SP11, SP12), and then the monitor 22. Displayed above.

On the other hand, the channel designation data is given to the master key input device 23 in step SP18 by the loop of the above-mentioned steps (SP9 to SP21), and thus step SP22.
At the step (2), the monitor 22 is set to the designated channel by the remote control signal RMT generated by the master key input device 23.

When the "management information" switch 71A is operated, the host computer 4 sends the device control data corresponding to the input data by the loop of steps (SP1 to SP8) in the same manner as described above, and continues. Step (SP
9 to SP14) and (SP9 to SP22) to set the operation mode in which the page image data can be transmitted from the video text data processing device 21 through the switch circuits 53 and 55. On the other hand, the specified data for the page image data is step (SP1 to SP
8) to the host computer 4, whereby the page image data extracted from the video database 6 is displayed on the monitor 22 by a loop of steps (SP9 to SP12).

When the "TV" switch 71C is operated, the switch circuit 5 is operated by steps (SP1 to SP8) and (SP9 to SP22).
3, 55 are switched to the television receiver 51 side, and the channel designation data is transferred to the steps (SP1 to SP8), (SP9 to S9).
The video signal is displayed on the monitor 22 by being given to the television receiving section 51 by P22).

In the case of the embodiment shown in FIG. 4, the keyboard of the master key input device 23 is provided with page data designation keys 73 in horizontal 7 rows and vertical 4 rows, and when one of them is operated, the numeric keypad 72 is used. A page data code having the same code as when it is input can be input as a so-called speed dial code.

(2) Entering / Exiting Table Mode The keyboard of the master unit key input device 23 is provided with an entering / exiting table data input switch 74 consisting of an "attended" switch 74A, an "away" switch 74B, and an "absent" switch 74C, Terminal device
When the users assigned 1A, 1B ... Operate the switches 74A to 74C according to the leaving / entering state, the input data is transferred to the host computer 4 by the steps (SP1 to SP8) in FIG. The host computer 4 stores the page image data in the video text database 6 in the entry / exit table memory area by the host computer 4. Thus, this entry / exit table page image data is used to indicate the status of entry / exit within the company.
It is designed to be able to store and update at any time.

This entry / exit report page image data is the "Management Information" switch.
After operating 71A, by operating the "exit / exit display" switch 75A provided as one of the specific function keys 75 on the keyboard of the master key input device 23, each terminal 1A, 1B can be operated as necessary. It is designed so that you can withdraw at. The data input from the "exit / exit display" switch 75A goes up to the host computer 4 by the steps (SP1 to SP8) in FIG. 1, and the host computer 4 goes out of the video text database 6 at step SP8. Pull out the front page image data and step (SP9
~ SP12) to display it on the CRT 54 of the monitor 22. As a result, the user to whom the terminal devices 1A, 1B ... Are assigned can easily know the leaving / leaving status of other users as needed.

In the above, the page image data of the entry / exit table is directly transmitted to the video text data processing device 21 as page image data in the communication network 2.
Although the case where the "TV" switch 71C is operated instead of the "TV" switch 75C described above
It can also be extracted as a television image signal through the CATV line 10 by operating. In this case, these data are the steps (SP1 to SP8) in FIG.
Thus, when the host computer 4 is moved to the host computer 4, the host computer 4 moves to step SP31 in FIG. 1 and sends the entry / exit table page image data extracted from the video text database 6 to the data / video converter 8 (second). (See Fig.) To convert the video signal TVIN _I to CATV line 1
By supplying 0, and controlling the monitor 22 to the "TV" operating mode by the above-mentioned steps (SP9 to SP22), an image can be displayed on the CRT 54 of the monitor 22 at step SP32.

In addition to the terminal image 1A, 1B ...
You can also watch it on the TV receivers 11A, 11B ....

The entry / exit table data is stored in the "Attendance" switch 24A and the "Away" switch 24 provided in the child device key input device 24 (Fig. 5).
B, can also be entered by the "absent" switch 24C.

(3) Vehicle allocation request mode The "vehicle allocation" switch is displayed on the keyboard of the master unit key input device 23.
When the switch 76 is provided and the user operates the switch 76 when requesting a vehicle dispatch from the vehicle dispatch center 19, the input data is sent to the host computer 4 by the steps (SP1 to SP8) in FIG. The host computer 4 moves to step SP33 after step SP8 and sends the data corresponding to the vehicle dispatch request to the vehicle dispatch center to the vehicle dispatch center 19. As a result, when the vehicle dispatch center 19 completes the vehicle dispatch, it is sent back. Based on the data, the above step SP
Returning to step 8, the device control data is created, and the dispatch completion lamp 77 provided on the keyboard of the master key input device 23, which is requested by the above-mentioned step (SP9 to SP20), is turned on. At the same time, the buzzer 78 is sounded for a predetermined time (for example, 3 seconds) to notify the user of the completion of the dispatch.

The vehicle dispatch switch 76 is provided with a lamp 76A, and when the vehicle dispatch request data reaches the host computer 4 by the above-mentioned steps (SP1 to SP8), the host computer 4
The flashing operation of the lamp 76A is performed by the step (SP9 to SP20) to notify the user that the dispatch is under arrangement. The operation of the red lamp 76A stops at the same time when the dispatch completion lamp 77 lights up.

In addition, the dispatch request data can be obtained from the child device key input device 24 (Fig. 5).
It can also be entered by using the "vehicle allocation" switch 24D provided in. Further, according to the device control data sent from the host computer 4 to the master device key input device 23, the buzzer 24E provided in the slave device key input device 24
And the "dispatch complete" lamp 24F may be driven.

(4) Emergency / e-mail mode The keyboard of the main unit key input device 23 is provided with an "emergency / e-mail" switch 79, and the user transmits emergency information or e-mail from his / her terminal device to another terminal device. If desired, after operating the switch 79, the transmission destination is designated by the ten-key pad 72. At this time, first, the input data of the switch 79 goes up to the host computer 4 by the steps (SP1 to SP8) of FIG.
At step SP8, based on the request, the "emergency message menu" page image data is read from the video text database 6 and the steps (SP9 to SP1) are read.
2) to display on the monitor 22 of the terminal device of the transmission source. Seeing this, the user selects a page to be transmitted and inputs it with the ten keys 72. At this time, the host computer 4 judges the urgency of the request, and when the urgency is high, the steps (SP9 to SP22), (SP9 to SP22) in FIG.
The input data is immediately transmitted to the destination specified by (12) and displayed on the monitor 22.

On the other hand, when the degree of urgency is small, the host computer 4 decides to handle the incoming message data as electronic mail information and decides the steps (SP9 to SP20) in FIG.
The emergency indicator lamp 80 is turned on and the buzzer
The user at the transmission destination is notified by sounding 75 for a predetermined time. At this time, the user is "emergency / email".
By operating the switch 79, a message transfer request is issued and the input data is transferred to the steps (SP1 to SP) in FIG.
8) to get to host computer 4. In response to this, the host computer 4 goes to step (SP9 to SP2
2), (SP9 to SP12), the emergency menu data is sent, and at this time, the user at the transmission destination selects and specifies the message to be viewed using the ten-key 72, and thus the transmission destination monitor 22
A message that should be emailed to is displayed on the screen.

The above is the case of transmitting emergency information from one terminal device to another terminal device, but when transmitting emergency information from the center 3, data is input from the input device 7 of the center 3. At this time, the host computer 4 sends the emergency message data at steps (SP9 to SP22) and (SP9 to SP12) in FIG. 1 to cause the terminal device of the transmission destination to immediately display the emergency message on the screen.

In the above description, the user at the transmission destination selects and inputs one of the page image data prepared in advance, but the terminal device is provided with a keyboard capable of inputting characters. By doing so, an arbitrary message may be input.

(5) ON / OFF control mode of the monitor 22 A "TV power" switch 81 is provided on the keyboard of the master unit key input device 23 of FIG. 4, and is operated when it is desired to turn on the monitor 22. The output data is sent to the host computer 4 by the above steps (SP1 to SP8).
After being converted to device control data, the power of the monitor 22 is controlled to be turned on and off by using the remote control signal RMT by steps (SP9 to SP22).

(G4) Other Embodiments In the above embodiment, the data / video conversion device 8
As the page image data to be converted in
Although only the data is targeted, the invention is not limited to this, and other page image data stored in the video text database 6 may be targeted.

H Effect of the Invention As described above, according to the present invention, the request generated in the terminal device is sent to the host computer provided in the center, and the terminal device is configured in response to the request in the host computer. By creating the device control data for each device and sending it back to the terminal device that made the request, the television image signal supplied via the CATV line and the page image data stored in the center are stored. It is possible to easily realize an information system which can be switched and combined as needed and can be displayed on the monitor of the terminal device with good consistency, and thus various and complicated information can be easily transmitted.

[Brief description of drawings]

FIG. 1 is a flow chart showing a data processing step in one embodiment of the information system according to the present invention, and FIG. 2 is a block diagram showing the entire configuration of the information system according to the present invention.
FIG. 3 is a block diagram showing the detailed configuration of the terminal device of FIG. 2, and FIGS. 4 and 5 are schematic diagrams showing the key operation surfaces of the master unit key input device 23 and the slave unit key input device 24 of FIG. It is a diagram. 1A, 1B ... Terminal device, 2 ... Communication network, 3 ... Center, 4
...... Host computer, 6 …… Video text database, 7 …… Input device, 8 …… Data / video conversion device, 10 …… CATV line, 19 …… Vehicle distribution center, 21 …… Video text data processing device, 22 …… … Monitor, 23 …… Master device key input device, 24 …… Slave device key input device.

Front Page Continuation (72) Inventor Minoru Aizawa 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Tokyo Electric Power Co., Inc. (72) Hiroshi Sahara 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation Shares In-house (72) Inventor Tomiichi Ishikawa 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) In-house Yoshimi Watanabe 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor Makoto Yoshino 1-2-1 Otemachi, Chiyoda-ku, Tokyo Mitsui & Co., Ltd. (72) In-house Mitsuo Kamata 2-17-22 Akasaka, Minato-ku, Tokyo Japan Unibaq Information Systems Co., Ltd. In-house (56) References JP-A-48-26419 (JP, A) JP-B-50-8613 (JP, B1)

Claims (1)

[Claims] 1. A center having a video text database in which page image data is stored and a host computer, a television video signal is supplied via a CATV line, and the page image data is supplied via a communication network. Each of the terminal devices is provided with a key input section for generating request data, and the television image signal is supplied to one input and the page image data is supplied to the other input. A switch means for selectively outputting the television image signal and the page image data, a monitor for displaying an output signal of the switch means, and a control for controlling a switching operation of the switch means based on control data. The host computer is supplied from each of the terminal devices via the communication network. The device control data generating means for generating device control data corresponding to the request data, and the reading means for reading out the page image data corresponding to the request data from the video text database, are provided via the communication network. The page image data is supplied from the host computer to the other input of the switch means of the terminal device in which the request data is generated, and the device control data is generated as the control data. It is supplied to the control means of the terminal device, and the control means controls the switch means so that the television image signal and the page image data are selectively supplied to the monitor based on the device control data. Information system characterized by Stem.