JPH03144795A - Remote monitoring device for building - Google Patents

Abstract

PURPOSE:To efficiently execute the remote control of a building through optical communication by temporarily repeating an optical signal transmitted from an optical transmitter by an intermediate optical communication equipment even when a comparatively high building or the like stands in the way of the optical communication line between an optical transmitter and an optical receiver. CONSTITUTION:Even when a comparatively high building or the like stands in the way of the optical communication line between the optical transmitter 3 and the optical receiver 5, an optical signal (f) transmitted from the transmitter 3 is temporarily repeated by the intermediate optical communication equipment 7. Thereby, the signal (f) can be transmitted to the receiver 5 through a by-pass different from the straight optical communication line. Namely, a communication fault due to the high building or the like existing between the transmitter 3 and the receiver 5 can be suppressed. Thus, the remote monitoring of buildings can be efficiently executed through optical communication.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a building remote monitoring device equipped with an optical transmitting/receiving device, and is particularly suitable for cases where a high-rise building is interposed between a monitored building and a center building. related to building remote monitoring equipment.

[Prior Art] Conventionally, in a building remote monitoring device, a terminal device provided in a monitored building and a terminal center device provided in a center building were connected via electric wires. However, with this building remote monitoring device, there is a problem in that the electric wires must be buried underground or attached to utility poles or the like, that is, the connection route of the electric wires is complicated.

Therefore, as a means to solve such problems, an optical transmitter 1i is installed in the terminal device, an optical receiver is installed in the terminal center device, and information is exchanged between the optical transmitter and the optical receiver via optical signals. A building remote monitoring device has been proposed by the same applicant.

[Problems to be Solved by the Invention] By the way, in the above-mentioned conventional building remote monitoring device, when a relatively tall building is installed on the optical communication path between the optical transmitter and the optical receiver, this building There is a problem in that the optical signal transmitted from the optical transmitter is blocked by the above, resulting in a communication failure.

In order to solve this problem, it is possible to install the optical transmitter and the optical receiver on a high pillar, etc., but if the obstacle blocking the optical signal is a taller building, etc. It is difficult to deal with this problem using pillars, etc.

The present invention has been made in view of the actual situation in the prior art, and its purpose is to prevent communication interference even when a relatively tall building or the like is installed on the optical communication path between the optical transmitter and the optical receiver. An object of the present invention is to provide a building remote monitoring device that can effectively perform remote monitoring of a building using optical communication without causing problems.

[Means for Solving the Problems] In order to achieve this object, the present invention provides a terminal device connected to six pieces of equipment in a monitored building, and a wired signal output from the terminal device converted into an optical signal. an optical transmitter that converts and transmits the signal; and an optical receiver that receives the optical signal and converts it into a wired signal, and an optical receiver that receives the optical signal and converts it into a wired signal; A terminal center device is provided to which the wired signal converted by the terminal is input.

In a building remote monitoring device that remotely monitors equipment in the monitored building using the terminal center device, an optical signal transmitted from the optical transmitter is received between the optical transmitter and the optical receiver. This configuration includes an intermediate optical communication device having a receiving section and a transmitting section that transmits an optical signal received by the receiving section to the optical receiving device.

[Operation] As described above, in the present invention, an optical signal transmitted from an optical transmitter in a monitored building is received by a receiving section of an intermediate optical communication device, and the received optical signal is transmitted from a transmitting section to an optical receiver in a center building. Even if a relatively tall building is installed on the optical communication path between the optical transmitter and the optical receiver,
As described above, by temporarily relaying the optical signal transmitted from the optical transmitting device with the intermediate optical communication device, the optical signal is transmitted to the optical receiving device via a detour path that is different from the straight optical communication path. As a result, it is possible to prevent communication interference between the optical transmitter and the optical receiver due to tall buildings, etc., and it is possible to perform remote monitoring of buildings using optical communication.

[Embodiment] An embodiment of the building remote monitoring device of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the building remote monitoring device of the present invention.

In the building remote monitoring device of the present invention shown in FIG. 1, a terminal device connected to equipment (not shown) in the monitored building 1! 2
and an optical transmitter 3 which is connected to the terminal device 2 and converts the wired signal outputted from the terminal device 2 into an optical signal f and transmits the signal, and is located at a location away from the monitored building 1. In the center building 4, there is an optical receiving device 5 that receives an optical signal f and converts it into a wired signal, and a terminal center equipment into which the wired signal converted by the optical receiving device 5 is input! ! 6 is provided. Then, the optical transmitting device 13 and the optical receiving bag N5
An intermediate optical communication device 7 is provided between the two.

This intermediate optical communication device 7 is installed, for example, on the roof of a high-rise building 8 on a straight line connecting the monitored building 1 and the center building 4, and receives an optical signal f transmitted from the optical transmitter 3.
a receiving section 9 that receives the optical signal f, a transmitting section 10 that transmits the optical signal f received by the receiving section 9 to the optical receiving device 5, and a communication cable 1 that connects the receiving section 9 and the transmitting section 10 to each other.
It consists of 1.

In this embodiment, for example, when an abnormal situation occurs in the equipment in the monitored building l, the terminal device 2 detects this abnormal situation and outputs a wired signal of the abnormality information to the optical transmitter i.
3 to convert into an optical signal f and transmit this optical signal f.
Next, this optical signal f is received by the receiving section 9 of the intermediate optical communication bag M8, and the transmitting section 1 connected via the communication cable 11
0 to transmit the above optical signal f. The optical receiving device 4 that received this optical signal f converts it into a wired signal of abnormality information again and inputs it to the terminal center device i16. With the input of this abnormality information, the terminal center apparatus 6 informs the monitoring center (not shown) which centrally monitors the terminal apparatus i2 that an abnormality has occurred in the equipment in the monitored building l via the telephone line. It is designed to notify you. Further, even when the optical signal f is interrupted due to a failure of the optical transmitter 3 or the like, the terminal center device 6 detects this abnormality and notifies the monitoring center.

In the embodiment configured in this way, the optical transmitter 3 and the optical receiver! Even if a relatively tall building or the like is installed on the optical communication path between 5 and 5, the optical signal f transmitted from the optical transmitter 3 can be temporarily relayed by the intermediate optical communication device 7, so that the optical signal It is possible to transmit to the optical receiving device 5 via a detour path different from the optical communication path, that is, it is possible to prevent communication failures due to tall buildings etc. interposed between the optical transmitting device 3 and the optical receiving device 5, and to use optical communication. Remote monitoring of buildings can be performed well. Further, the receiving section 9 of the intermediate optical communication device 17
and the transmitting section 10 are connected to each other via the communication cable 11, so that the receiving section 9 and the transmitting section 10
The intermediate optical communication device 7 can be easily installed without being subject to major restrictions on the installation location.

In this embodiment, the intermediate optical communication device 7 is installed on the roof of a high-rise building 8 located on a straight line connecting the monitored building 1 and the center building 4. , an intermediate optical communication device is installed on a telephone pole or the like located horizontally apart from the straight line connecting the monitored building 1 and the center building 4! A similar effect can be achieved by installing 7. Furthermore, if an optical fiber cable is used as the communication cable 11 of the intermediate optical communication device 7, there will be no interference due to noise.

It is possible to increase the wiring length of this optical fiber cable.

[Effects of the Invention] Since the present invention is configured as described above, even if a relatively tall building or the like is installed on the optical communication path between the optical transmitter and the optical receiver, the optical signal transmitted from the optical transmitter can be By temporarily relaying the optical signal using an intermediate optical communication device, the optical signal can be transmitted to the optical receiving device via a detour path that is different from the straight optical communication path. This has the effect that communication failures caused by tall buildings, etc. can be prevented, and therefore, buildings can be monitored remotely using optical communication.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the building remote monitoring device of the present invention. 1... Building to be monitored, 2... Terminal device,
3... Optical transmitting device, 4... Center building, 5... Optical receiving device, 6... Terminal center device, 7... Intermediate Optical communication equipment, 8...
・High-rise building, 9... Receiving section, 10...
Transmission section, 11... Communication cable. Diagram

Claims (1)

[Claims] (1) The monitored building is equipped with a terminal device connected to equipment and an optical transmitter that converts the wired signal output from the terminal device into an optical signal and transmits it, and In the center building located at a distance,
An optical receiving device that receives the optical signal and converts it into a wired signal, and a terminal center device to which the wired signal converted by the optical receiving device is input are provided, and the terminal center device is used to control equipment in the monitored building. In a building remote monitoring device that remotely monitors equipment, between the optical transmitter and the optical receiver,
The present invention is characterized by providing an intermediate optical communication device having a receiving section that receives an optical signal transmitted from the optical transmitting device, and a transmitting section that transmits the optical signal received by the receiving section to the optical receiving device. Building remote monitoring equipment.