JPS6276935A - Supervisory control system for multi-channel access system - Google Patents

Abstract

PURPOSE:To attain economical supervision without an exclusive wired line or the necessity of a radio wave by using a general subscriber radio equipment in a multi-channel access system to apply remote supervisory control thereby eliminating the need for a private line for supervisory control. CONSTITUTION:General subscriber radio equipments 19, 20 are used and a data adaptor circuit 12 converting a supervisory control signal into a data signal is added between the subscriber radio equipment 19 and a supervisory control device 13. Further, a data adaptor circuit 9 converting the supervisory control signal into the data signal is added between the subscriber radio equipment 20 and each device of a central control station. Then the circuit 9 is connected to a transmitter 3, a receiver 4 and a line controller 5 via storage control sections 6-8 to form a remote supervisory control system. After a radio wave sent from a transmission section 21 of the subscriber radio equipment 20 is inputted to the receiver 4 in the central control station, the result is sent from the transmitter 3 and inputted to a reception section 16 of the subscriber radio equipment 19. The data signal from the reception section 16 is inputted to a data adaptor 12, where the signal is converted into a supervisory signal, which is inputted to a supervisory controller 13 for the supervision of a fault of each device caused in the central control station.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides multi-channel access (
The present invention relates to a supervisory control method for an MCA system, and relates to a supervisory control method for monitoring and controlling devices within a central control station using subscriber wireless devices (fixed wireless devices) accommodated within the MCA system.

(Prior Art) Conventionally, there are wireless and wired remote monitoring and control systems as general vision control systems for this type of MCA system, and the configurations of each are shown in FIGS. 2 and 3. Both types consist of a relay central control station, a relay base station device, and a monitoring control device. The central control station is composed of a transmitting antenna 1, a receiving antenna 2, a relay transmitting device 3, a relay receiving device 4, and a line control device 5. The base station device includes storage control units 6 to 8 that store and control the operating states of the devices 3 to 5 described above, and a monitoring control unit that converts the status numbers stored in these storage control units 6 to 8 into data signals. e1
and a data adapter 9 for converting data signals from 3 into control signals. The monitoring control device 13 is connected to the data adapter 12. In the remote monitoring and control of such various devices, in FIG. 2, control signals are exchanged between the monitoring and control device 13 and the base station device through a dedicated wireless line linking the wireless devices 10 and 11. That is, these control signals are exchanged via the data adapter 12, the wireless devices 11 and 10, and the data adapter 9. On the other hand, in the wired monitoring system shown in FIG. 3, various devices are monitored by control signals sent from the monitoring and control device 13 through the wired line 14.

(Problems to be resolved by the invention) The conventional visual control method described above is performed by opening a wireless device 10.11 for supervisory control or a dedicated line such as a wired line. This requires new equipment and an increase in the number of radio frequencies, which has the drawback of increasing costs and increasing the number of radio frequencies. On the other hand, the wired system does not increase the radio frequency, but has the disadvantage that it requires the installation and maintenance costs of a dedicated wire, which increases operating costs. Furthermore, the supervisory control method using a dedicated line has the disadvantage that the state of the actual operating line cannot be monitored.

(Means for solving problems) The present invention relates to a relay transmitter and a relay receiver.

a relay central control station including a line control device; a storage control section that stores and controls the state of each of the devices; a first data adapter circuit connected to the storage control section; a supervisory control device; and a second data adapter circuit connected to the supervisory control device, through which the supervisory information and control information of each device in the relay central control station is sent and received, and the supervisory control device transmits and receives the monitoring information. A monitoring control method for a multi-channel access system that displays information and inputs the control information, wherein first and second subscribers are actually operated in the multi-channel access system and are connected to each other via a wireless line. wireless devices connected to the first and second data adapter circuits, respectively, the first data adapter circuit, the first subscriber wireless device, the second subscriber wireless device, and the second data adapter circuit; It is characterized in that the monitoring information and the control information are exchanged via a circuit.

(Embodiment) FIG. fi1 is a block diagram showing an embodiment of a monitoring control method for a multi-channel access system according to the present invention.

The relay central control station is the relay transmitter 3 as shown in FIG.
, a relay receiving device 4, a line control device 5, a transmitting antenna 1, and a receiving antenna 2. This relay central control station has a relay function, and uses this central control station as the center of the system to connect multiple mobile station devices and fixed wireless devices (subscriber wireless devices) or between mobile station devices. Relay control is performed by F1 group and F2 group consisting of radio waves. In FIG. 1, the same numbers as in FIGS. 2 and 3 have the same functions, and subscriber radio equipment 19 (2
0) is composed of a transmitter 15 (21), a receiver 16 (22), a controller 17 (23), and an antenna 18 (24).

The operation of this embodiment will be explained in more detail below.

A multi-channel access system is a system that uses a central control station as a relay station to communicate between each subscriber wireless device, and one group shares multiple channels in order to relay between a large number of subscriber wireless devices. , aiming to make effective use of frequencies. Each device in the central control station, which is shared by a large number of subscribers, is duplicated (current use and standby), and the operating status of each device is constantly monitored and controlled.

In this embodiment, a subscriber wireless device 1 operated within the system
9 and 20, it is possible to remotely control a central control station in operation using an actual operating line. The transmitting section 15 (21) in the subscriber radio device 19 (20) transmits the radio waves of the F group, the receiving section 16 (22) receives the radio waves of the Fl group, and the control section 17 (23) transmits the radio waves of the F group. If you want to control the connection.

Communication between these subscriber radio devices 19 and 20 is performed in the following procedure. The radio waves of group F emitted from each subscriber radio device are transmitted to the reception antenna 2 of the central control station.
and are input to the relay transmitter 3 via the relay receiver 4, and are transmitted as F and group radio waves to the receivers 16 and 22, respectively, via the antennas 18 and 24 of each subscriber radio device.
be entered into. In this way, the subscriber radio devices 19 and 20 are able to communicate through and out of the central control station by repeating alternate transmission and reception.

In order to smoothly operate this system, each wireless subscriber device is generally assigned an individual number that limits subscription and is stored in the control units 17 and 23 within the subscriber wireless device.
The individual number sent from each subscriber radio device is confirmed by the line (connection) control device 5 of the central control station, and relaying is possible only if it has been registered.

As mentioned earlier, the central control station's transmitting unit [3, receiving device 4, and line control device 5] all have a redundant configuration of active and backup devices, so communication between subscriber wireless devices is always guaranteed. There is. The present invention focuses on this point, and the system's remote monitoring and control method does not require a dedicated wired or wireless line like conventional methods, but allows remote monitoring and control within the current system where the line is always guaranteed. Let's do it.

That is, in this embodiment, general subscriber wireless devices 19 and 2
0, subscriber wireless device 19 and supervisory control device 13
A data adapter circuit 12 for converting supervisory control signals into data signals is added between the subscriber radio equipment 20 and each device of the central control station. A data adapter circuit 9 is added thereto, and connected to the transmitter 3, the receiver 4, and the line controller 5 via the storage controllers 6 to 8 to form a remote monitoring and control system. The status of each device within the central control station is determined by the storage control unit 6.
.about.8, the stored status signals are converted into data signals by the data adapter circuit 9, and inputted to the control section 23 and the transmission section 21 of the subscriber radio equipment.

The radio waves sent out from the transmitting unit 21 of the subscriber radio device 20 are input to the receiving device 4 in the central control station, and then transmitted to the transmitting device 3.
and is input to the receiving section 16 of the subscriber wireless device 19. The data signal from the receiver 16 is input to the data adapter 12, converted into a monitoring signal, and sent to the startle control device 13.
It is possible to manually monitor abnormalities in each device that occur within the central control station.

Control of each device within the central control station (transmitting device 3, receiving device 4, line control device 5) is performed through a route completely opposite to this.

(Effects of the Invention) As described above, according to the present invention, by performing remote monitoring and control using the general subscriber wireless device in the Malgucha Trunk access system, there is no need for a dedicated line for monitoring and control, and radio waves and Because it does not require a dedicated wired line,
Is this a remedial surveillance?

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a supervisory control method in a multi-channel access system according to the present invention, and FIGS. 2 and 3 are configurations of conventional wireless and wired supervisory control systems, respectively. It is a diagram. 1... Transmission antenna, 2... Receiving antenna, 3
... Relay transmitting device, 4... Relay receiving device, 5.
...Line control device, 6-8...Storage control unit, 9, 12
...Data adapter circuit, 13...Monitoring control device,
19°20...Subscriber radio equipment, 15, 21...
Transmitting section, 16, 22... Receiving section, 17.23...
Control unit, 18.24... antenna. Agent Patent Attorney Honsho Nakasuke Figure 3 Food damage...Ding? ?

Claims (1)

[Claims] a relay central control station including a relay transmitter, a relay receiver, and a line control device; a storage controller that stores and controls the status of each of the devices; and a first controller connected to the storage controller. It includes a data adapter circuit, a supervisory control device, and a second data adapter circuit connected to the supervisory control device, and receives monitoring information and control information of each device in the relay central control station via these data adapter circuits. In a supervisory control method for a multi-channel access system in which communication is performed, and the supervisory control device displays the supervisory information and inputs the control information, 1
and a second subscriber radio device connected to the first and second data adapter circuits, respectively, the first data adapter circuit, the first subscriber radio device, the second subscriber radio device and A monitoring control method for a multi-channel access system, characterized in that the monitoring information and the control information are exchanged via the second data adapter circuit.