JP2953361B2 - PDS transmission system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PDS (Passive Double Star) transmission system, and more particularly to a PDS transmission system for controlling activation of a plurality of subscriber units from an intra-office device.

[0002] PDS transmission is an optical communication system in which an intra-station device and a subscriber device are connected via a star coupler (optical add / drop circuit). In PDS transmission, a large amount of data can be exchanged between subscriber units.

[0003]

2. Description of the Related Art The configuration of a conventional PDS transmission system is shown in FIG.
Shown in In the example shown in FIG. 4, a plurality of subscriber units 51, 5
2, 53, a star coupler 56 disposed on a transmission line connected to the subscriber units 51, 52, 53, and a plurality of subscriber units 51, 5 via the star coupler 56.
2 and 53 are connected. The plurality of subscriber devices 51, 52, and 53 perform bidirectional communication via the star coupler 56.

Each of the first subscriber unit 51, the second subscriber unit 52, and the N-th subscriber unit 53 has a unique identification number. The intra-station device 70 controls the activation of each subscriber device using the identification numbers assigned to the subscriber devices 51, 52, and 53.

[0005] The intra-station device 70 includes subscriber units 51, 52,
An activation control unit 62 that performs activation control of the subscriber device based on the identification number 53 and a database unit 60 that stores information on each of the subscriber devices 51, 52, and 53 for each identification number. This data is input by an operator operating the data input unit 64.

[0006] The intra-station device 70 includes subscriber units 51, 52,
When receiving the activation request of another subscriber device from 53, it outputs the identification number of the activation request to the database unit 60, and the information of the subscriber devices 51, 52, 53 corresponding to the identification number is output from the database unit 60. Get. Further, the intra-station device 70 controls the activation of the subscriber device based on the subscriber device information read from the database unit 60.

[0007]

In this conventional PDS transmission system, the subscriber devices cannot be started unless the operator registers the subscriber unit identification number in the database unit. There is a problem that it takes a lot of time to complete.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a PDS transmission system capable of improving the disadvantages of the prior art and, in particular, automatically determining an identification number of an added subscriber unit. And

[0009]

Therefore SUMMARY OF THE INVENTION In the present invention, multiple
Number of subscriber units and the multiple subscriber units on the transmission path
With an intra-station device connected via a star coupler
Together with the intra-office device being assigned to a plurality of subscriber units.
ID numbers stored as subscriber unit information
The subscriber device information storage unit and the subscriber device information storage unit
An identification number generation unit for generating an unregistered identification number;
Subscribing multiple generation identification numbers output from different number generation unit
To the user device and respond to the generated identification number.
Identification of the responding subscriber device, if any
The number of the unregistered device that is determined to be the generation identification number is
It has a fixed function.

Here, the identification number generation unit generates an identification number that has not been registered in the subscriber device information storage unit. Further, the activation control unit outputs the unregistered identification number output from the identification number generation unit to a plurality of subscriber devices, and if there is a subscriber device that has responded to the unregistered identification number, the response It is determined that the identification number of the registered subscriber device is the unregistered identification number. For this reason, even if the information about the subscriber device is not registered in the subscriber information storage unit by the operator, the subscriber device can be activated.

[0011] In the present invention, the identification number generation unit may be activated.
Unregistered sequentially until a predetermined stop command is output from the control unit
It has an identification number sequential generation function for generating identification numbers for
The motion control unit outputs the unregistered identification output from the identification number generation unit.
Until there is a response from multiple subscriber units to the number
Repeater that outputs an unregistered identification number to the subscriber unit
Responds to unregistered identification numbers with this function
To the identification number generator when there is a subscriber device
And a stop control function of outputting a decree, adopted the configuration that
ing.

With the repetition function and the stop control function,
The addition of unregistered subscriber devices is detected.

[0013] In some embodiments, the activation control unit is not provided.
Identification number of subscriber device not registered by registered device determination function
Identification number and the subscriber
Subscribe as subscriber device information along with transmission route information to the device
It may be stored in the user device information storage unit. This example
Now, the registration of the subscriber device information by the operator
No hard work is required.

[0014]

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

FIG. 1 is a block diagram showing one embodiment of the present invention. A plurality of subscriber units 1, 2, 3; a plurality of these subscriber units 1, 2, 3;
6 and an intra-office device connected via the same.

A subscriber unit information storage unit (database unit) 10 in which an intra-station device 20 stores respective identification numbers assigned to a plurality of subscriber units together with transmission path information as subscriber unit information; An activation control unit 12 controls activation of each subscriber device based on the subscriber device information stored in the storage unit 10.

In addition, the activation control unit 12 is provided with an identification number generation unit 14 for generating an identification number not registered in the database unit 10 in response to a request from the activation control unit.

Further, as shown in FIG. 2, the activation control unit 12 outputs the generated identification number output from the identification number generating unit 14 to the plurality of subscriber units 1, 2, and 3, An unregistered device determining function 16 for determining that the identification number of the responding subscriber device is the generated identification number when there is a responding subscriber device.

When the unregistered device identification function 16 determines the identification number of the unregistered subscriber device, the activation control unit 12 sends the subscriber information together with the identification number and the transmission route information to the subscriber device. A device information storage function 18 for registering device information in the database unit 10 is provided.

This will be described in detail.

In the present embodiment, the activation control unit 12 arranged in the intra-office device 20 automatically searches for the same number as the identification number of each of the subscriber devices 1, 2, and 3 so that a plurality of subscriber devices can be identified. It has a feature in performing start control.

The activation control unit 2 inputs the identification number of the subscriber unit to be activated to the database unit 10 as a data input signal, and further transmits the information of the subscriber unit corresponding to the identification number to the first unit from the database unit 10. As a data output signal. The activation control unit 2 performs activation control of the subscriber device based on the first data output signal.

The activation control unit 2 includes a database unit 10
If the identification number is not registered in the ID number, a start / stop control signal is output to the identification number generation unit 14.
The identification number generator 14 is activated by receiving the start / stop control signal. After that, the activation control unit 2
The data generation instruction signal is output to the identification number generation unit 14, and the database unit 10 uses the identification number (generation identification number) of the arbitrary subscriber device as a second output signal and outputs the identification number generation unit 1
Enter 4

The activation control unit 12 sends the generated identification number to a plurality of subscriber units, and if a response from a certain subscriber unit is returned, determines that one subscriber unit has been activated (unregistered unit determination). Function 16). Further, the identification number of the optional subscriber unit is stored in the database unit 1 using the data input signal.
0 to register (device information storage function 1
8).

If no response is returned from all the subscriber units, a data generation instruction signal is output to the identification number generation unit 14, and
The identification number generation unit 14 inputs another identification number to the activation control unit 12 as a second data output signal. The identification number generation unit 14 sequentially generates different identification numbers until the start control unit controls the stop (repetition function).

The activation control unit 12 can activate a plurality of connected subscriber units by repeating the above operation. Thereafter, the activation control unit 12 stops the identification number generation unit 14 using the start / stop control signal (stop control function).

The identification number generation unit 14 is controlled to be started / stopped by a start / stop control signal from the start control unit 12, and each time a data generation instruction signal from the start control unit 12 is input, the identification number generation unit 14 is activated. The identification number is output to the activation control unit 12 using the second data output signal.

Next, the operation will be described.

The activation control unit 12 requests the identification number generation unit 14 to generate an identification number. Then, the identification number generation unit 1
4 generates an arbitrary identification number not registered in the subscriber device information storage unit 10 (step S1). The identification number generated by the identification number generation unit 14 is referred to herein as a generation identification number.

Next, the generated identification number is transmitted to each of the connected subscriber units 1, 2, 3 via the star coupler 6 (step S2). A transmission identification number different from the identification number already registered in the database unit 10 has been selected. That is, immediately after the identification number is generated by the identification number generation unit 14, a process of confirming whether or not the generated identification number is a number already registered in the database 10 may be performed. The activation control unit 12 may perform the operation.

Further, it is confirmed whether or not there is a response from the subscriber unit to the generated identification signal transmitted in step S2 (step S3). If there is no response, another identification number is generated (repeatedly). function).

On the other hand, if there is a response to the generated identification number, it is determined that the subscriber device having received the response is an unregistered subscriber device (step S4). Further, the subscriber device information such as the transmission path and the generated identification number of the unregistered subscriber device is stored in the subscriber device information storage unit 10 (step S5).

For this reason, in the next start-up processing, the automatic start-up is performed without requiring the operator's input including the automatically registered subscriber unit.

[0034]

As described above, the present invention is constructed and functions. According to this, the identification number generation unit sets the identification number not registered in the subscriber unit information storage unit in response to a request from the activation control unit. Generating, the activation control unit outputs the unregistered identification number output from the identification number generation unit to a plurality of subscriber devices,
Further, if there is a subscriber device responding to the unregistered identification number, the identification number of the responding subscriber device is determined to be the unregistered identification number. even in a state that is not registered in the subscriber information storage unit, Ki out to start the subscriber unit satisfactorily, moreover, repeated function and stop controller
Function to reliably detect the addition of unregistered subscriber devices.
For this reason, registration according to the addition of subscriber units can be performed.
It is possible to provide an unprecedented excellent PDS transmission system in which recording can be automatically performed .

[Brief description of the drawings]

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

FIG. 2 is a functional block diagram illustrating a detailed configuration of an activation control unit illustrated in FIG. 1;

FIG. 3 is a flowchart showing an operation example in the configuration shown in FIGS. 1 and 2;

FIG. 4 is a block diagram showing a configuration of a conventional PDS transmission system.

[Explanation of symbols]

1,2,3 Subscriber device 10 Subscriber device information storage unit (database unit) 12 Activation control unit 14 Identification number generation unit 16 Unregistered device determination function 18 Device information storage function

Claims (1)

(57) [Claims] 1. A plurality of subscriber units and a plurality of these subscriber units
Station connected to the user equipment via a star coupler on the transmission path
And an intra- station device , wherein the intra-station device is assigned to the plurality of subscriber devices.
ID numbers stored as subscriber unit information
The subscriber device information storage unit and the subscriber device information storage unit
An identification number generation unit for generating an unregistered identification number;
The generation identification number output from the separate number generation unit
To the subscriber device and respond to the generated identification number.
If there is a subscriber device that responded,
Unregistered devices that determine that the identification number is the generation identification number
In the PDS transmission system provided with a location determination function, the identification number generation unit is configured to perform a predetermined stop from the activation control unit.
Unregistered identification numbers are generated sequentially until an instruction is output
It has an identification number sequential generation function, and the activation control unit outputs the identification number from the identification number generation unit.
Response from the plurality of subscriber devices to an unregistered identification number
Unregistered identification numbers are sequentially output to the subscriber unit until there is
And the repetition function
When there is a subscriber device responding to the registration identification number,
A stop control function that outputs a stop command to the identification number generation unit
PDS transmission system characterized by comprising.