JPH04138796A - Data transmitting/receiving system between plural monitoring devices and transmitting device - Google Patents

Abstract

PURPOSE:To suppress hardware scale corresponding to the increase of monitoring device by collectively inputting communication requests outputted from plural monitoring device, inputting information indicating a connected monitoring device from a switching means and communication information from a communication processing circuit and executing the processing and control of the inputted information. CONSTITUTION:For example, in the case that a connection request to a CPU 41 is inputted from the 2nd monitoring device 11-2 to a buffer 22 during the transmission/ reception of information between the 1st monitoring device 11-1 and the CPU 41 connected to the device 11-1, the connection request inputted to the buffer 22 is informed to the CPU 41 and informed also to a switch 23. When information indicating the execution of post processing has not still been inputted after the lapse of a prescribed time, the monitoring device 11-2 outputs the connection request to the CPU 41 again so as to be connected to the CPU 41. Since the processing of data from plural monitoring devices can be executed only by one processing part arranged on the transmitting equipment side, the hardware mounting area of the transmitting equipment corresponding to the increase of the monitoring device can be contracted.

Description

[Detailed Description of the Invention] [Summary] Regarding a data transmission/reception method between a plurality of monitoring devices and transmission devices, an increase in hardware scale due to an increase in the number of monitoring devices is minimized, and the load applied to the control unit is minimized to the necessary minimum. A switching means that inputs communication requests from the monitoring device all at once and connects with the transmission device according to processing priority, and communication information of the monitoring device selectively connected by the switching means. A communication processing circuit that inputs and converts it into data suitable for the transmission device, information indicating the connected monitoring device from the switching means, and a control that inputs communication information from the communication processing circuit and processes and controls the manually input information. It consists of a section.

[Industrial Application Field] This relates to data transmission and reception methods between multiple monitoring devices and transmission devices.

When monitoring transmission equipment that forms a transmission network, in addition to the standard monitoring items that are preset when forming the network, network users (customers) collect their own monitoring information.

Alternatively, a media device may be installed to the upper level monitoring device. In such a case, the network user may have to separately send a communication such as a request to send monitoring information to the transmission device.

[Prior Art] As mentioned above, when a communication request is issued from multiple monitoring devices to a transmission device, the multiple monitoring devices and the transmission device are physically connected through multiple boats in order to send and receive their information. be done. As for its configuration, it is necessary to provide a processing section on the transmission device side that handles transmission/reception with each boat. In other words, hardware units corresponding to the number of connected boats are provided on the transmission line side, and each unit independently processes information transmission and reception.

That is, as shown in FIG. 3, information input from the monitoring device 11-1 is transmitted to the transmission device 10 via the boat 1.
and is manually input to the corresponding processing unit (C-LSI) 51. Further, the information inputted from the monitoring bag Wll-2 is inputted to the transmission device 10 via the boat 2, and then inputted to the corresponding processing unit (C-LSI) 52.

Processing unit 51. and 52 the corresponding monitoring device 1l-L1
When the information from the knee 2 is input, an access request to the control unit 71 is outputted via the DMA 61.

When requests are competing with the input connection request, the control unit 71 sequentially executes processing starting from the request to be processed according to the priority of the competing processing.

Further, from the transmission device 10, a plurality of monitoring devices 111.11-
Regarding the transmission of information to 2, for example, multiple monitoring bags 21
Transfer all the information to 1-Lll-2 and monitor the monitoring device 1-Lll-2.
In bit-2, only the information corresponding to the own device is taken in from among the input information.

[Problem to be solved by the invention]

As mentioned above, in the conventional method of connecting monitoring devices and transmission devices, in order to connect multiple monitoring devices using a boat that corresponds to each monitoring device and send and receive information, the transmission device must have a boat that is compatible with each monitoring device. Since it is necessary to provide a processing section, there is a problem in that as the number of monitoring devices to be connected increases, the scale of the hardware increases in proportion to the number of monitoring devices to be connected.

Furthermore, when a plurality of pieces of received information are sent to the control section at once, the control section needs to manage the processing priority of the information, which poses a problem of increasing the load on the control section.

Therefore, it is an object of the present invention to minimize the increase in the hardware scale due to the increase in the number of monitoring devices, and to minimize the load applied to the control section.

[Means to solve the problem] FIG. 1 shows a diagram of the principle of the present invention.

In the figure, first, in connection processing from a monitoring device, connection requests to the transmission device 10 are inputted to the transmission device 10 from a plurality of monitoring devices 1-1 to 1-n. Within the transmission device 10, connection request signals corresponding to the input monitoring devices 1-1 to 1-n are input to the switching unit 2. When multiple connection requests are input, the switching unit 2 selects the monitoring device to be selected according to the processing priority, and outputs information indicating which monitoring device is to be connected to the transmission device IO to the control unit 4. do. The communication processing section 3 inputs information from the monitoring device selected by the switching section 2, converts the information according to the communication method used here, and outputs the converted information to the control section 4.

Next, the information transfer request from the control unit 4 is processed by the communication processing unit 3.
After the information is converted into information according to the communication method used on this transmission path, the switching unit 2 sends the information to the monitoring device to which the information is to be sent.

[Action of the invention]

As described above, according to the present invention, there is no need to provide separate processing hardware for connection requests from a plurality of monitoring devices, and it is possible to respond to connection requests from a plurality of monitoring devices using one processing hardware.

In addition, by performing priority management for each connection request in the receiving section, distributed processing based on processing items is now possible.

〔Example ] FIG. 2 shows an embodiment of the present invention.

The monitoring devices 1-1 to 1-n in FIG. 1 are the first monitoring device 11-L, the second monitoring device 11-2, and the like in FIG. corresponding to the first
The switching unit 2 in the figure is the first and second buffer 21 in FIG.
．． Corresponding to the 22 switches 23 and 24, the communication processing section 3 in FIG. 1 is composed of the processing section 3L and DMA 32 in FIG.
The control section 4 corresponds to the CPU 41 in FIG.

In the figure, an example in which connection requests to the CPU 41 from the first monitoring device 11-1 and the second monitoring device 11-2 conflict will be described.

First, a request for connection with the CPU 41 is input from the first monitoring device 1 to the first buffer 21 . buffer 2
1, when a connection request signal is input, it notifies the CPU which monitoring device has input the connection request, and also sends the input information to the processing unit 31 via the switch 23.
Output to. The processing unit 31 converts the input information into information according to the communication method, and sends it to the CPU 41 via the DMA 32.
It is output to. The CPU 41 controls collection, editing, etc. of monitoring information according to input information, and feeds back information indicating that the processing has been carried out normally to the first monitoring device ILL. Here, when the first monitoring bag Wll-1 and the CPU 41 are connected and transmitting and receiving information, the second monitoring device 11-2 and the CPU 4
A case will be described in which a connection request for 1 is input to the buffer 22. The connection request input to the buffer 22 is sent to the CPU
41 and the switch 23 as well.

However, since the CPU 41 is connected to the first monitoring device 11-1, it is not connected to the second monitoring device 11-2, and is unable to perform processing in response to the connection request of the second monitoring bag Wll-2. The information shown will not be entered. Therefore, in the second monitoring device 11-2, if information indicating the execution of post-processing has not been input after a predetermined period of time has elapsed, the second monitoring device 11-2 connects to the CPU 41 by issuing a connection request again to the CPU 41. . In addition, regarding the sending of transmission information from the CPU 41 to each monitoring device, the switch 2 is sent from the CPU 41 to the switch 2.
A method of sending a switching signal to 4 and sending information to the corresponding monitoring device, or attaching a destination address to the transmitted information and sending the destination address attached to the information received on the monitoring device side. There are methods such as checking the address and receiving the information when it matches the address assigned to each monitoring device.

In another embodiment (not shown), information input into a buffer when connection requests conflict is stored in a memory (recording buffer), and after the conflicting partner's communication is completed, the CP Memorize the method for connecting to U41 or the address of the monitoring device to which the connection request was input,
It is also possible to implement the method by notifying the monitoring device that the communication with the competing partner has ended and establishing a connection with the CPU 41.

〔Effect of the invention 〕

As described above, according to the present invention, the processing units provided on the transmission device side for a plurality of monitoring devices can be integrated into one, so that the hardware mounting area of the transmission device can be reduced as the number of monitoring devices increases.

Further, when connection requests from a plurality of monitoring devices conflict, the switching unit handles the processing, so processing in the CPU can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a principle diagram of the present invention, Fig. 2 is an embodiment of the present invention, and Fig. 3 is a connection diagram of a conventional monitoring device and transmission device. Monitoring device, 2...Switching unit, 3...Communication processing unit, Yumei Moto's hall map 1, figure 10, water table, Akira Kisari's large scale 1.

Claims (1)

[Claims] Each transmission device (10) constituting the transmission network, and a monitoring device (1-1 to 1-n) that monitors the transmission device (10).
), a switch that inputs communication requests from the monitoring devices (1-1 to 1-n) all at once and connects them to the transmission device (10) according to processing priority. means (2), and a communication processing circuit (3) for inputting and processing communication information of a monitoring device selectively connected by the switching means (2), and the switching means (2)
Information and communication processing circuit (3) indicating the monitoring device connected to
) A data transmission/reception method between a plurality of monitoring devices and a transmission device, characterized in that the communication information processed in the respective devices is inputted in a corresponding manner, and the inputted information is processed and controlled.