JPH09178956A - Detection method for connection cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and precisely confirm a target cable to be connected from plural pieces of respectively independent connection cables electrically connecting between electronic equipments related to a detection method for the connection cable. SOLUTION: In the detection method for the connection cable being the connection cable 11 connecting between respective electronic equipments 2-1, 2-2 and used for information transmission between the electronic equipments, and provided with an optical fiber in addition to an electrically connecting core wire in the inside, this method is constituted so as to be provided with a step A irradiating a light beam from one end surface of the connection cable 11, a step B propagating the light beam from one end surface of the connection cable 11 to the other end surface by the irradiation and a step C detecting the connection cable 11 by the light beam radiated from the other end surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting a connection cable widely used for transmitting information by electrically connecting various electronic devices.

In recent years, in particular, the number of various devices installed has increased along with the increase in the introduction of networks using information devices, and the number of cables for electrically connecting these devices has been diversified. Or, at the time of change, the cable wiring work is complicated.

[0003] Therefore, it is possible to easily detect (determine) a cable intended for electrical connection between devices at a distant place, and to improve reliability and work efficiency of electrical connection between devices. Connection cables are needed.

[0004]

2. Description of the Related Art As shown in FIG. 4, a conventional connection cable used for electrical connection between electronic devices is composed of a plurality of conductors each made of a soft copper wire for electric connection and coated with an insulator such as vinyl or polyethylene. It has a core 1-1.

In the figure, 1-2 is an insulator such as vinyl or polyethylene, 1-3 is a presser winding made of plastic tape wound around the outer periphery of the inner sheath 1-2, and 1-4 is a silver-plated soft copper wire braid. Shields 1-4 and 1-5 for blocking jamming are outer sheaths for protecting cables with flexible PVC.

A conventional method of detecting a connection cable when electrically connecting electronic devices is based on a conventional method of detecting an electrical signal from a conductor (copper wire) of the connection cable to be connected from one electronic device to the other electronic device. The connection cable to be propagated to the side and to be electrically connected is confirmed.

[0007]

The problem with the conventional connection cable detection method described above is that it is difficult to detect a remote position.
For example, when electrically connecting electronic devices installed in different buildings with a large number of connection cables, an electrical signal is transmitted from one electronic device side to a conductor (copper wire) of the connection cable to be connected. In order to confirm the connection cable to be connected to the other electronic device side, this confirmation work requires specialized skills and dedicated equipment, and requires a lot of man-hours to increase the connection cost. There was a problem.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a new connection cable which can easily and accurately confirm a target cable to be connected from a plurality of independent connection cables for electrically connecting electronic devices. It is an object of the present invention to provide a method for detecting

[0009]

In order to achieve the above object, in the method of detecting a connection cable of the present invention, a connection cable used for information transmission between the electronic devices by electrically connecting the electronic devices is used. In the method for detecting a connection cable having an optical fiber in addition to the core for electrical connection, the step of irradiating a light beam from one end face of the connection cable, It comprises a step of propagating from the end face to the other end face, and a step of detecting the connection cable by a light beam emitted from the other end face.

[0010] With this configuration, the first electronic devices respectively installed at distant positions as shown in FIG.
When the 2-1 and the second electronic device 2-2 are electrically connected by a plurality of independent connection cables 11, as shown in FIG. Since the optical fiber 11-1 is provided in addition to the optical fiber 11-1, when one end face of the connection cable 11 to be electrically connected is illuminated by the light source 12, the light beam propagates in the optical fiber 11-1 and is transmitted to the other end. Radiated from the end face. In addition, by confirming (visually recognizing) light rays emitted from the end faces, the end faces of the same connection cable to be connected can be easily and accurately determined and electrically connected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. 1 (a) and 1 (b) are cable connection diagrams between electronic devices according to the present embodiment and step diagrams showing the connection method, FIG. 2 is a cross-sectional view of the connection cable used in FIG. 1, and FIG. In the cutaway view showing the fiber wiring structure, in the figure, the same members as those in FIG. 4 are denoted by the same reference numerals, but the other 11 is a connection cable of the present invention, and 12 is a connection cable for connection purpose. Light source.

As shown in FIG. 1A, a plurality of independent connection cables 11 are used to electrically connect a first electronic device 2-1 and a second electronic device 2-2 which are separately installed. At that time,
The connection cable 11 used for the connection includes, as shown in FIG. 2, at least one optical fiber 11-1 in addition to a plurality of cores 1-1 in which a conductor made of soft copper wire is coated with an insulator. It is arranged. In the figure, 1-2 is an inner sheath, 1-3 is a holding tape of plastic tape, and 1-4 is a shield for blocking jamming radio waves, which is the same as conventional.

As shown in FIG. 3, the optical fiber 11-1 is spirally wound around the outer peripheral surface of the shield 1-4 to improve the durability such as the bending strength of the optical fiber 11-1. The outside is covered with a flexible PVC outer sheath 1-5 to prevent disconnection.

Next, the method of detecting the connection cable will be described with reference to FIG.
(B) As shown in the figure, a step A of irradiating a light beam from one end face of the connection cable 11 to be electrically connected; And a step C of detecting (determining) the end faces of the same connection cable 11 to be connected by confirming (visually observing) the light emitted from the other end face.

Accordingly, the light beam irradiated on one end face of the connection cable propagates through the optical fiber 11-1 and emits light on the other end face. In order to detect the electric signal, it is necessary to transmit the electric signal from one electronic device side to the other electronic device side to the conductor (copper wire) of the connection cable, and to use the specialized technology and dedicated equipment to check the electric signal. Is unnecessary,
Connection man-hours can be reduced and connection costs can be reduced.

[0016]

As is apparent from the above description, according to the present invention, there is an advantage that the target connecting cable can be detected easily and accurately with an extremely simple structure, and a remarkable economic effect and It is possible to provide a connection cable that can be expected to improve reliability.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a cable connection between electronic devices and a step diagram illustrating a connection method according to the embodiment;

FIG. 2 is a sectional view of a connection cable used in FIG.

FIG. 3 is a cutaway view showing a wiring structure of the optical fiber of FIG. 2;

FIG. 4 is a cross-sectional view of a connection cable used for connection between conventional electronic devices.

[Explanation of symbols]

 1-1 Wire core (conductor) 2-1 First electronic device 2-2 Second electronic device 11 Connection cable 11-1 Optical fiber 12 Light source

Claims (1)

[Claims] 1. A connection cable used for transmitting information between electronic devices by electrically connecting the electronic devices, wherein the connection cable has an optical fiber in addition to a wire for electrical connection inside the connection cable. Irradiating a light beam from one end surface of the connection cable; transmitting the light beam from one end surface to the other end surface of the connection cable by the irradiation; and connecting the connection cable with a light beam emitted from the other end surface. Detecting the connection cable.