JPH0767162A - Remote display control method by radio calling system - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the line equipment cost when remotely controlling the display contents of the display devices 8 distributed over a wide range and to effectively use the frequency resources of the wireless line. [Structure] A radio calling system and its line that are put into practical use in a public communication network are used. Distributed display devices 8
In addition to the message display type radio paging receiver 5, a plurality of types of display screens to be displayed are created and stored in the external storage devices 2 and 7 on the transmission side and the reception side, respectively. The transmission control device 1 reads a desired screen from the external storage device 2 and sends a corresponding code as a message. The message received and displayed by the radio paging receiver 5 is read by the reception control device 6, decoded, and the corresponding screen is read from the external storage device 7 and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote display control system for controlling the display of display devices dispersedly installed in a plurality of remote places by using a wireless line of a wireless calling system.

[0002]

2. Description of the Related Art With the technological development of various display elements, the size and cost of display devices have been increased, and recently, various display plates have been found outdoors. For example,
There is a bus location system in which a display board is installed at a bus or streetcar stop to display the operating status of buses or streetcars that operate the route. Similarly, a display board showing empty or full parking and a display board showing road traffic information are installed in various places. Display contents of such a display board are controlled in a one-to-one correspondence by setting a line by a wired line such as a private line or a public line or a wireless line from an operator's place.

[0003]

However, when using a wired line, it is necessary to lay a line between the transmitting side and the receiving side, and when using a wireless line, frequency resources are finite, so reliability is high. There is a limit to the exclusive use of expensive lines. In addition, there is a problem that the cost for each equipment and operation is high. Moreover, the displayed contents are often characters or symbols, and there is a problem that the amount of information transmitted is small.

An object of the present invention is to solve such a problem and display the display contents of a plurality of display devices dispersedly arranged in a wide area on various screens in addition to characters and symbols. It is to provide a remote display control system.

[0005]

According to the remote display control method of the present invention, there is provided a transmitting side external storage device for storing desired plural kinds of display screen information on the transmitting side of a radio calling system utilizing a public communication network. A transmission control device for reading the display screen information designated by the display designation input means from the external storage device into a message code and transmitting the message code to the public communication network together with an individual call number, and controlling the data in a predetermined area. Each of a plurality of display devices distributed as devices is a message display type radio paging receiver, a reception control device, and a reception side external storage in which display screen information equivalent to the contents stored in the transmission side external storage device is stored. A device is connected and arranged, and the reception control device reads a message displayed on the radio paging receiver and displays a display screen corresponding to a message code. It is to be characterized in that the broadcast has to perform the display specified in the display device reads from the receiving-side external storage device.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system diagram showing an embodiment of the present invention. In the figure, 1 is a transmission control device, 2 is an external storage device, 3 is a public communication network, 4 is a radio base station, and 5 (5-1, 5).
-2, ...) is a radio paging receiver, and 6 (6-1, 6-2,
...) is a reception control device, 7 (7-1, 7-2, ...) Is an external storage device, and 8 (8-1, 8-2, ...) Is a display device. FIG. 2 is a block diagram showing a device on the transmission side of the present invention. In the figure, 11 is a display (monitor) for operation, 12 is an input keyboard for operation, 13 is a microcomputer (MPU) for controlling the entire transmission control device 1 and includes peripheral circuits. 14 is an auxiliary input device such as a magnetic card reader for simplifying the operation, 15
Is a network control unit (NCU) for connecting to a public communication network,
16 is a DTMF signal generator for transmitting display data, 17
Is an interface for an external storage device for accumulating edited and created screen information to be displayed in advance in the transmission control device 1, and 2 is a floppy disk or an IC for storing the screen information. An external storage device such as a memory card. FIG. 3 is a block diagram of a receiving side device of the present invention. In the figure, 63 is a CRT, LCD,
An interface for transmitting and controlling display information to the display device 8 such as an LED, 64 is a microcomputer (MPU) for controlling the reception control device 6, and includes peripheral circuits. Reference numeral 61 is a display reader for reading the content displayed on the message display type radio paging receiver 5 by a coupling means such as optical, acoustic, electromagnetic or electrical, and 62 is designated from the external storage device 7. This is an interface for fetching display screen information. Reference numeral 9 is a reception booster for supplementing the reception sensitivity of the external antenna, and 10 is an antenna coupler for coupling the antenna system and the radio paging receiver 5.

In FIG. 1, the transmission control device 1 calls the exchange through the public communication network 3, and transmits the identification signal converted into the DTMF signal and the digital signal of the display screen number to the wireless base station 4.
Send from The information received and displayed by the radio paging receiver 5 on the receiving side is taken into the reception control device 6, converted into screen information corresponding to the number, and sent out to the display device 8 for display. By making the calling number of the radio paging receiver 5 common, one call can be simultaneously received by a plurality of receivers, and broadcast communication can be performed. Figure 2
In the above, the screen information to be displayed on the display device on the receiving side is created and edited in advance by the operation display unit 11 and the input keyboard 12, and is stored in the external storage device 2, and this is externally stored on the receiving device side as necessary. It is distributed to the storage device 7 and stored. Normally, while looking at the operation display unit 11, the operator inputs the number information corresponding to the screen by inputting from the input keyboard 12, but the operation made in advance by the auxiliary input device 14 such as a magnetic card reader. By taking in the sequence information from the magnetic card, even a person who is not familiar with keyboard operation can easily perform the operation. It is also possible to incorporate an operation sequence in the control microcomputer (MPU) 13 and periodically send out necessary screen information. In FIG. 3, the radio paging receiver 5 receives a signal transmitted wirelessly via an external antenna, a reception booter 9, and an antenna coupler 10, and displays the information displayed on the display by optical, acoustic, or electromagnetic information. The information read by the display reader 61, which is a mechanical, electrical, etc. coupling means, is sent to the control microcomputer 64. The control microcomputer (MPU) 64 takes in corresponding screen information from the external storage device 7 via the external storage device interface 62 based on the received display information, and displays the display device 8 via the display device interface 63. It is sent to and displayed.

[0008]

As described above, according to the present invention,
No need to lay a special line for a plurality of display devices distributed and installed in a remote place, and to have a limited radio frequency resource at a low facility operation cost, without having to allocate radio frequencies. Since the broadcast display control can be performed by effectively utilizing the, the effect is great.

[Brief description of drawings]

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

FIG. 2 is a block diagram of a transmission control device of the present invention.

FIG. 3 is a block diagram of a reception control device of the present invention.

[Explanation of symbols]

 1 transmission control device 2 external storage device 3 public line 4 radio base station 5 radio call receiver 6 reception control device 7 external storage device 8 display device 9 reception booster 10 coupler 11 operation display device 12 input keyboard 13 MPU 14 auxiliary Input device 15 NCU 16 DTMF signal generator 17 Interface for external storage device for screen information exchange 61 Display reader 62 Interface for external storage device 63 Interface for display device 64 MPU

Claims (1)

[Claims] 1. A transmission side external storage device in which desired plural kinds of display screen information are stored in a transmission side of a radio paging system using a public communication network, and the external storage device is designated by the display designation input means. A transmission control device for converting display screen information into a read message code and sending it to the public communication network together with an individual call number is provided, and each of a plurality of display devices distributed as controlled devices in a predetermined area is provided. A message display type radio paging receiver, a reception control device, and a reception side external storage device that stores display screen information equivalent to the storage content of the transmission side external storage device are connected and arranged, and the reception control device, Read the message displayed on the radio call receiver and read the display screen information corresponding to the message code from the external storage device on the receiving side. Remote display control method according to a radio paging system being characterized in that to perform the display serial display device specified in.