JPH0993280A - Pds transmission system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To start a subscriber equipment even when the identification of the subscriber equipment is not registered in an intra-station equipment by providing a subscriber equipment information storage section and an identification number generating section. SOLUTION: An intra-station equipment 20 has a subscriber information storage section 10 storing each identification number allocated to plural subscriber equipments 1, 2, 3 as subscriber equipment information with transmission path information, and also with a start control section 12 controlling the start of the subscriber equipments based on the subscriber equipment information. Furthermore, the start control section 12 is provided with an identification number generating section 14 generating an identification number not registered to the subscriber equipment information storage section 10. Thus, when there is any subscriber equipment replying an identification number not registered, the start control section 12 judges it that the identification number of the replied subscriber equipment is the identification number not registered.

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 devices from an in-station device.

[0002] PDS transmission is an optical communication system in which an in-station device and a subscriber device are connected via a star coupler (optical add / drop circuit). PDS transmission enables large-capacity data exchange between subscriber devices.

[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 devices 51, 5
2, 53, a star coupler 56 arranged on a transmission line connected to the subscriber devices 51, 52, 53, and a plurality of subscriber devices 51, 5 via the star coupler 56.
2 and 53 are connected to each other. The plurality of subscriber devices 51, 52, 53 are performing bidirectional communication via the star coupler 56.

The first subscriber device 51, the second subscriber device 52, and the Nth subscriber device 53 each have a unique identification number. The intra-station device 70 controls the activation of each subscriber device using the identification numbers assigned to these subscriber devices 51, 52, 53.

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

The in-office device 70 includes subscriber devices 51, 52,
When the activation request for another subscriber device is received from 53, the identification number of the activation request is output 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. To get. Further, the in-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 units cannot be activated while the identification number of the subscriber unit is not registered in the database section by the operator, so that all subscriber units cannot be activated. There is a problem that it takes a lot of time to complete.

[0008]

It is an object of the present invention to improve the inconvenience of the conventional example, and in particular, it is possible to activate the subscriber device even if the identification number of the subscriber device is not registered in the in-station device. Further, it is an object of the present invention to provide a PDS transmission system capable of automatically determining the identification number of the subscriber device and registering it in the station device.

[0009]

Therefore, in the present invention, as a first means, a plurality of subscriber devices and an intra-station device connected to the plurality of subscriber devices via a star coupler on the transmission path are provided. And a subscriber device information storage unit in which the intra-station device stores the identification numbers assigned to the plurality of subscriber devices as subscriber device information together with the transmission route information, and the subscription stored in the subscriber device information storage unit. An activation control unit that controls activation of the subscriber device based on the subscriber device information. Moreover, the activation control unit is provided with an identification number generation unit that generates an identification number that is not registered in the subscriber device information storage unit in response to a request from the activation control unit, and the activation control unit further includes an identification number generation unit. If there is a subscriber device that transmits the unregistered identification number output from the device to a plurality of subscriber devices and responds to the unregistered identification number, the identification number of the responding subscriber device is the unregistered identification number. An unregistered device determination function for determining the identification number is provided.

In the first means, the identification number generating section is
An identification number not registered in the subscriber device information storage unit is generated in response to a request from the activation control unit. Furthermore, the activation control unit
If there is a subscriber device that outputs the unregistered identification number output from the identification number generator to multiple subscriber devices and responds to the unregistered identification number, the identification number of the responding subscriber device. Is determined to be the unregistered identification number.
Therefore, even if the information about the subscriber device is not registered in the subscriber information storage unit by the operator, the subscriber device is activated.

In the second means, in addition to the matters for specifying the first means, when the activation control unit determines the identification number of the unregistered subscriber device by the unregistered device determination function, the identification number is determined. Further, it has an unregistered device registration function for storing it in the subscriber device information storage unit as subscriber device information together with the transmission route information to the subscriber device.

In the second means, when the unregistered device determining function determines the identification number of the unregistered subscriber device, the activation control unit transmits the identification number and transmission route information to the subscriber device. It is also stored in the subscriber device information storage unit as subscriber device information. Therefore, operator's input work is not required for registration of information of the subscriber device.

In the third means, in addition to the items for specifying the first means, the identification number generation section sequentially generates unregistered identification numbers until a predetermined stop command is output from the activation control section. It has a sequential generation function, and the activation control unit repeatedly outputs the unregistered identification numbers to the corresponding subscriber device until there are responses from the plurality of subscriber devices to the unregistered identification number output from the identification number generation unit. The function and the function of outputting a stop command to the identification number generation unit when there is a subscriber device that responds to the unregistered identification number by this repeating function are provided.

[0014]

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

FIG. 1 is a block diagram showing an embodiment showing the present invention. A plurality of subscriber devices 1, 2, 3 and a plurality of these subscriber devices 1, 2, 3 and a star coupler 5 on the transmission line
And an in-station device connected via 6.

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

Moreover, 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 generation unit 14 to the plurality of subscriber devices 1, 2 and 3 and outputs the generated identification number. When there is a responding subscriber device, the unregistered device determination function 16 for determining that the identification number of the responding subscriber device is the generated identification number is provided.

Further, when the unregistered device determination function 16 determines the identification number of the unregistered subscriber device, the activation control unit 12 adds the identification number and transmission route information to the subscriber device together with the subscriber. It has a device information storage function 18 that is registered in the database unit 10 as device information.

This will be described in detail.

In the present embodiment, the activation control unit 12 arranged in the intra-station device 20 automatically retrieves 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 is characterized in that it performs startup control.

The activation control unit 2 inputs the identification number of the subscriber unit to be activated into the database unit 10 as a data input signal, and further, the first information from the database unit 10 of the subscriber unit corresponding to the identification number. It is acquired as the data output signal of. The activation control unit 2 controls activation 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 has not been registered in, the start / stop control signal is output to the identification number generation unit 14.
The identification number generation unit 14 is activated by receiving this 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 any subscriber device as the second output signal.
Enter in 4.

The activation control unit 12 sends this generated identification number to a plurality of subscriber devices, and if a response from a certain subscriber device is returned, it is determined that one subscriber device has been activated (unregistered device determination). Function 16). Furthermore, the identification number of this arbitrary subscriber unit is stored in the database unit 1 using a data input signal.
Register by outputting to 0 (device information storage function 1
8).

If the responses from all the subscriber devices are not returned, a data generation instruction signal is output to the identification number generation section 14,
The identification number generator 14 inputs another identification number to the activation controller 12 as a second data output signal. The identification number generation unit 14 and the activation control unit sequentially generate different identification numbers until stop control is performed (repetition function).

The activation controller 12 can activate a plurality of connected subscriber devices by repeating the above operation. After that, 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 section 14 is controlled to start / stop by a start / stop control signal from the start control section 12, and each time a data generation instruction signal from the start control section 12 is input, the identification number generation section 14 is changed. 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 controller 12 requests the identification number generator 14 to generate an identification number. Then, the identification number generation unit 1
4 generates an arbitrary identification number that is 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 as a generated identification number here.

Next, the generated identification number is transmitted to each of the subscriber devices 1, 2, 3 connected via the star coupler 6 (step S2). The generated identification number to be transmitted is different from the identification number already registered in the database unit 10. This may be a process of confirming whether or not the generated identification number is a number already registered in the database 10 immediately after the identification number generation unit 14 generates the identification number. The activation control unit 12 may perform this.

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), and if there is no response, another identification number is generated (repeatedly). function).

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

Therefore, in the next start-up process, the subscriber device automatically registered is automatically started without any input from the operator.

[0034]

Since the present invention is constructed and functions as described above, according to this, the identification number generation unit responds to the request of the activation control unit with an identification number not registered in the subscriber device information storage unit. The activation control unit outputs the unregistered identification number output from the identification number generation unit to a plurality of subscriber devices,
Furthermore, when there is a subscriber device that responds to the unregistered identification number, the identification number of the responding subscriber device is determined to be the unregistered identification number. Even if the subscriber device is not registered in the subscriber information storage unit, the subscriber device can be properly started up. Therefore, compared with the start-up control of the subscriber device after the operator inputs a plurality of subscriber numbers. Thus, it is possible to provide an unprecedented excellent PDS transmission system capable of controlling activation of a subscriber device in a short time.

[Brief description of drawings]

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

FIG. 2 is a functional block diagram showing a detailed configuration of a startup control unit shown in FIG.

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 (3)

[Claims] 1. A PDS transmission system comprising a plurality of subscriber devices and an intra-station device connected to the plurality of subscriber devices via a star coupler on a transmission path, wherein the intra-station device comprises the plurality of subscriber devices. A subscriber device information storage unit that stores each identification number assigned to the subscriber device together with transmission path information as subscriber device information, and a subscriber based on the subscriber device information stored in the subscriber device information storage unit. An activation control unit for controlling activation of a device is provided, and the activation control unit is provided with an identification number generation unit that generates an identification number not registered in the subscriber device information storage unit in response to a request from the activation control unit. However, when the activation control unit transmits the generated identification number output from the identification number generation unit to the plurality of subscriber devices and there is a subscriber device that responds to the generated identification number, A PDS transmission system having an unregistered device determination function of determining that the identification number of the responding subscriber device is the generated identification number. 2. When the activation control unit determines the identification number of the unregistered subscriber device by the unregistered device determination function, the subscriber is sent together with the identification number and transmission route information to the subscriber device. 2. The PDS transmission system according to claim 1, further comprising a device information storage function of storing the device information in the subscriber device information storage unit. 3. The identification number generation unit includes an identification number sequential generation function that sequentially generates unregistered identification numbers until a predetermined stop command is output from the activation control unit, and the activation control unit includes the A repeating function of sequentially outputting unregistered identification numbers to the subscriber device until there is a response from the plurality of subscriber devices to the unregistered identification number output from the identification number generation unit, and the unregistered function by this repeating function. 2. The PDS transmission system according to claim 1, further comprising a stop control function of outputting a stop command to the identification number generation unit when there is a subscriber device responding to the identification number.