JPS62190937A - Control system for radio transmitter-receiver group - Google Patents

Abstract

PURPOSE:To prevent trouble such as a runaway from occurring even when a system is constituted by using numbers of transmitter-receivers by stopping the transmitting functions of a repeater system transmitter-receiver group instantaneously at a time under the control of a controller. CONSTITUTION:The transmitter-receivers A1-C3 are arranged at geographically proper intervals and operate independently as repeater system transmitter- receivers in individual ratio wave environments. The transmitter-receivers A1-C3 are connected to the controller 4 by control lines. The control lines are shown by full lines, but the control may be wire or wireless control. In this case, a general transmission stop time t3 or t4 is provided at a time interval t2 as one example of the transmitting operation state of the transmitter- receivers. Thus, the general transmission stop time is provided and then even if the 1st transmitter-receiver in this radio transmitter-receiver group is supplied with an input from others, such a runaway that the input and transmission are repeated only in this system is prevented thereafter from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control system for a group of repeater type wireless transceivers consisting of a plurality of units.

[Conventional technology]

Traditionally, there have been repeater-type transmitters and receivers that transmit based on the sensation of a radio reception signal, but all of them are operated with only one unit, and there is no way to use them in such a way that multiple units (many units) respond at the same time. There wasn't.

[Problems that Departure attempts to solve]

When multiple repeater transceivers are installed, once the receiver starts transmitting as a receiver, even if the receiver does not feel the receiver, the transmitter/receiver continues to transmit and receive only within a group of multiple transmitters/receivers.
Since it is expected that the situation will go out of control, some kind of countermeasure will be required.

This invention provides a wireless transmitter/receiver as a plurality of repeaters (
It is designed to enable the use of multiple wireless transceivers (groups) as a semi-fixed wireless relay station in mobile radio systems, etc.
It enables the use of

[Means for solving problems]

The wireless transmitter/receiver group control system according to the present invention dramatically stabilizes the communication quality of wireless relay operation 9 by controlling a wireless relay station consisting of a plurality of units, which was completely impossible in the past. Control is performed so that all transmitters and receivers instantly stop transmitting at the same time.

[Effect]

In the present invention, the individual radio transceivers constituting the radio transceiver group are configured to stop transmitting operations all at once in response to a control signal from a controller, thereby preventing runaway within the radio transceiver group. .

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the signals Ill to (3) are transmitting and receiving signals J@'A-C, respectively, indicating that they are controlled by the controller (4) via control lines.

FIG. 3 shows an example of the ON-OFF state of the transmission control of C to the transceiver. A to 0 on the vertical axis in the figure corresponds to transmission/reception fi A -0, and 0 in each transmission state.
It is a diagram illustrating an example of N-OFF operation.

Next, the operation will be explained. In Figure 1, transceiver A
(11~Transmission/Reception 3%) The C131s are arranged at geographically appropriate intervals, and each C131 operates independently in its own radio wave environment as a repeater type transmitter/receiver.

The transmitter/receiver i A fil to transmitter/receiver C(3) are each connected to the controller +41 by control lines. Although this control line is shown as a solid line, either wired or wireless control is possible.

FIG. 3 shows an example of the transmission operation state of the transmitter/receiver, and shows that there is a simultaneous transmission stop time of t3 or t4 at a time interval of t2. By providing this simultaneous transmission stop, this group of wireless transmitters and receivers can go out of control, repeating transmission and transmission only within this system, even if the initial motivation for transmission is from someone else. can be prevented.

In the above embodiment, the transmitter/receiver group A-C is shown in FIG.
Although the three-unit configuration is used, a similar effect can be obtained if there are two or more units. In Fig. 3, the simultaneous stop time is t3=
It may be either t4 or t3←t4, and there is no problem in the system configuration even if the time interval at which the -broadcast transmission stop time occurs is tl==t2:t3 or any of t1 to t2←t3.

Although FIG. 2 shows the transmitting/receiving JfiA 111 and the controller (4) integrated in close proximity or as devices, there is no essential difference in configuration between FIG. 1 and FIG. It has a similar effect.

〔Effect of the invention〕

As described above, according to the present invention, a group of repeater-type transmitters and receivers is controlled from a controller (- so that the transmitting function is instantaneously stopped (-), so that a configuration using a large number of transmitters and receivers is possible. However, it is effective in preventing problems such as runaway.

[Brief explanation of drawings]

FIG. 1 is a system diagram of a wireless transmission/reception group control system showing one embodiment of the present invention, FIG. 2 is a system diagram of a wireless transmission/reception group control system showing another embodiment of the invention, and FIG. FIG. 3 is a time chart diagram showing ON-OFF operation of transmission control of the machine. In the figure, fil~(3) is a transmitter/receiver, and 41 is a controller. Note that the same reference numerals in the figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a group of wireless transceivers consisting of a plurality of units that are triggered to transmit based on the reception of a wireless reception signal, each of the transmitters and receivers constituting the group of wireless transmitters and receivers synchronizes and simultaneously transmits signals at regular or random time intervals. A wireless transmitter/receiver group control method characterized by instantaneously stopping transmission.