JPH0433452A - Channel test method for monitor center device - Google Patents

Abstract

PURPOSE:To reduce the telephone line charge by receiving a call signal from a telephone line at closing of the telephone line by a network control circuit so as to test a channel. CONSTITUTION:When the presence of a test start command is confirmed from a channel test device 3 to a port 11, a controller 10 closes a prescribed telephone line 2 based on a RAM 12 and a ROM 13 by allowing a network controller 16 to receive a telephone line closing command from the controller 10. When the channel is closed in this way, the test is conducted by detecting a call signal from the telephone line 2 at the controller 10 when the channel is formed. Thus, the telephone line charge is reduced and the line operating time is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication path testing method for a monitoring center device for testing a communication path of a monitoring center device.

[Prior art] A conventional communication path test method for monitoring center equipment is disclosed in Japanese Patent Application Laid-Open No.
- As described in Publication No. 124420, the telephone line is selected by sequentially activating the dial sending device according to the transmitted communication path test signal, and the communication path test signal transmitted to each signal conversion device is connected to the telephone line. Received by modem device,
The communication path was tested by comparing the received communication path test signal and the transmitted communication path test signal.

[Problem M to be Solved by the Invention] According to the conventional call path testing method for a monitoring center device described above, the configuration is complicated because a dial sending device and a signal converting device are required, and the telephone line is sequentially selected. It is uneconomical because the line usage fee increases, and because the line is used for a long time for testing, the line may be in use when a notification is received from a non-monitoring terminal device in the building. be.

SUMMARY OF THE INVENTION An object of the present invention is to provide a communication path testing method for a monitoring center device that reduces telephone line usage charges and shortens line usage time.

[Means for Solving the Problems] In order to achieve the above object, the present invention connects a communication path test device that transmits and receives communication path test signals to a monitoring center device, and performs a communication path test signal transmitted from the communication path test device. The present invention is characterized in that the control device of the monitoring center device gives a command to close the telephone line to the network control device by a signal, and then the control device detects the tone of the telephone line.

[Function] Since the communication path test method of the monitoring center according to the present invention is as described above, a desired telephone line is closed by the network control device based on the communication path test signal, and the dial tone from the telephone line is controlled by the control device. You can test the communication path by checking the

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram of a monitoring device in which the monitoring center device 1 monitors various equipment in a building (not shown) via a plurality of telephone lines 2.

The monitoring center device 1 has a port 11 for communicating with a communication path testing device 3 consisting of a personal computer, a control device 10 that controls the entire device, a RAM 12 that temporarily stores data for the device, and a RAM 12 that temporarily stores data therefor. A ROM 13 containing programs is provided. In addition, each of these devices 10 to 13 and the address bus 1
4 and the network controllers 16 to 18 via the data bus 15.
is connected, and this network control device iii:16-18
receives the call path test signal, closes a predetermined telephone line, and receives the telephone line signal.

A communication path testing method for a monitoring center device in a monitoring device configured as described above will be explained with reference to the operational flowchart of FIG.

In step S1, the communication path test device 3 is connected to the port 11.
When it is confirmed that a test start command has been issued from the control device 1, the control device 1
0 connects a predetermined telephone line 2 to, for example, the network control device 1 in step S3 based on RAM L 2 and ROM 13.
6 receives the telephone line closing command from the control device 10 and closes the line, thereby completing step 4.

Once the communication path is established in this manner, a test is performed by detecting a dial tone from the telephone line 2 using the control device Who. This is determined in step S5, and if the control device 10 receives the outgoing signal from the telephone line 2, it is considered normal. Further, if the control device 110 does not receive the outgoing signal from the telephone line 2, step S
In step 6, the abnormality is reported to the communication path testing device 3. When the test is similarly conducted for other communication paths, step S2
It is determined that the test has ended, and a report is made to the communication path testing device 3 in step S7.

[Effects of the Invention] As explained above, the communication path testing method for a monitoring center device of the present invention tests the communication path by receiving the outgoing signal from the telephone line when the telephone line is closed in the network control device. As a result, the configuration of the test equipment can be simplified, and
In addition, there are no telephone line usage charges because the test is performed simply by closing the telephone line. Furthermore, since no data is transmitted, the line usage time can be shortened, thereby reducing the probability that a notification from a non-monitoring terminal device on the building side will result in the line being in use.

[Brief explanation of drawings]

FIG. 1 is an operational flowchart showing a communication path testing method for a monitoring center device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a monitoring device to which the present invention is applied. 1...Monitoring center device, 2...Telephone line, 3...Call path testing device, 10...
・Control device, 11...Port, 12...RA
M, 13...ROM, 16-18...
Network control device.

Claims (1)

[Claims] 1. In a communication path testing method for a monitoring center device in which a plurality of telephone lines and a control device are connected by a network control device, a communication path testing device for transmitting and receiving communication path test signals is connected to the monitoring center device. The control device instructs the network control device to close the telephone line in response to the communication path test signal transmitted from the communication path test device, and the control device detects the dial tone of the telephone line, thereby making a call. 1. A communication path testing method for a monitoring center device, characterized in that a communication path test is carried out for a monitoring center device.