JP3018667B2 - Centralized monitoring 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 centralized monitoring system, and more particularly to a centralized monitoring system having an improved method of transferring information from a plurality of monitored devices to a monitoring device.

[0002]

2. Description of the Related Art In a conventional centralized monitoring system, as shown in FIG. 2, a plurality of monitored devices 11-1 to 11-N, a monitoring device 12 for centrally monitoring these devices, and a connection between these devices. It comprises transmission lines 13-1 to 13-N. From each monitored device 11-1 to 11-N, a transmission path 13-1 to 13-N
With respect to the encoded data 14-1 to 14-N sent to the monitoring device 12 via 13-N, the monitoring device 12 analyzes the content of the above-described encoded data, Software 15 for outputting and displaying information on a computer. Also, the encoded data indicates that the occurrence / recovery of an event such as image data is “1” or “0”.
It is transmitted in a bitmap such as Numerical data is also expressed in a binary number and transferred to the monitoring device 12. Therefore, when displaying these coded data on the monitoring device 12, software 15 has been created which performs a process of displaying the numerical data and the like in a form that is easy for the operator to understand, such as a graph. On the other hand, as another role of the software 15, the number of ports of the monitoring device 12 is limited to the number of ports connecting the transmission lines 13-1 to 13-N. The software 15 must have a polling function for sequentially processing data.

[0003]

In this conventional centralized monitoring system, since a bitmap signal is transmitted as it is for transmitting image data, there is a disadvantage that an enormous amount of data and time are required. In addition, the monitoring device requires software construction to perform a series of signal transmission and reception, such as a call signal, an acknowledgment signal, and a carrier detection for preventing collision when processing the monitored data and performing polling operations on a plurality of monitored devices. Therefore, the cost of the system has been increased due to the creation of the above-mentioned software, and it has taken time to complete the construction of the system. There was also a drawback that the responsiveness and reliability were reduced due to the intervention of software.

[0004]

A centralized monitoring system according to the present invention comprises N (N is an integer of 2 or more) monitored devices ,
N that transmits the screen data sent from the monitored device
A number and transmission path, a buffer for storing the screen data sent through the transmission path, one of the transmission path between the monitoring device with centralized monitoring and the buffer, the object superintendent
Screen data using standardized character codes
The monitoring device sends the data based on the standardized specifications.
And displaying the screen data.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a centralized monitoring system according to an embodiment of the present invention. The embodiment of FIG. 1 shows N monitored devices 1-1 to 1-1.
−N are connected to the buffer 5 via transmission lines 3-1 to 3-N, respectively. Here, the buffer 5 having a storage function prevents the collision of the screen data 4-1 to 4-N sent from the transmission paths 3-1 to 3-N and sequentially sends the screen data to the monitoring device 2 via the transmission path 6. 4-1 to 4-N are transmitted.

On the other hand, screen data 4-1 to 4-N transmitted from the monitored devices 1-1 to 1-N are based on NAPLPS (North American Pre
Sentation Level Protocol
(Syntax), and transmitted as a character code according to the specifications of a code table of definable characters . The monitoring device 2 decodes this character code and displays it directly on the screen. Therefore, the monitoring device 2 does not require the conventional software.

[0007]

As described above, the present invention has a buffer for storing screen data of a plurality of monitored devices. Further, since a standardized character code is used as a data format from the monitored device to the monitoring device, it is not necessary to equip the monitoring device with software by using a terminal satisfying this standard as the monitoring device. Therefore, there is an effect that the cost reduction reliability of the system is improved and the responsiveness is improved.

[Brief description of the drawings]

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

FIG. 2 is a system configuration diagram of a conventional centralized monitoring system.

[Explanation of symbols]

 1-1 to 1-N, 11-1 to 11-N Monitored device 2, 12 Monitoring device 3-1 to 3-N, 6, 13-1 to 13-N Transmission path 4-1 to 4-N, 14-1 to 14-N Screen data 5 Buffer 15 Software

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q 9/00 311 G09G 5/22

Claims (1)

(57) [Claims] 1. N (N is an integer of 2 or more) monitored devices
And N transmission paths for transmitting screen data transmitted from these monitored devices, a buffer for storing the screen data transmitted via the transmission path, and a monitoring apparatus for centrally monitoring the buffer. And one transmission path between the
The monitored device uses a standardized character code.
The screen data is sent out and the monitoring device is standardized
Displaying the screen data based on
Centralized monitoring system.