JPH03266805A - Signal detecting system - Google Patents

Abstract

PURPOSE:To surely detect lighting light by providing a lighting light input means which is introduced with the light released from the luminous body of an operation state indicator lamp and delivers the light to an optical cable within the display state indicator lamp. CONSTITUTION:Light is released from the luminous body 3 when a DC voltage of an anode is impressed to an anode electrode 15 and the DC voltage of a negative electrode to a cathode electrode 16. The light emitted from this lumi nous body 3 arrives at a signal connector 13 for external connection through an optical waveguide 12. The connector 13 for external connection is an inter face point with a signal processor 6 and is connected by the optical cable 4 to the signal processor 6. The lighting light of the operation state indicator lamp 2 is, therefore, received by the optical waveguide 12 when this lamp is lighted. The lighting signal transmitted to the connector 13 for external connec tion is then transmitted up to the signal processor 6 by the optical cable 4. Since the lighting light input means 5 is provided on a base 14 side, the visibility as the indicator lamp of the LED is not impaired.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a signal detection method for obtaining a lighting signal by using the lighting light when the operating state is configured to be displayed by lighting an operating status indicator light.

The purpose is to reliably detect the lighting of the operating status indicator light and transmit the lighting signal to the signal processing device.

Detects the lighting of the operating status indicator of a device whose operating status is displayed by the operating status indicator.

In a signal detection method configured to transmit the lighting signal to a signal processing device, lighting light input means for introducing light emitted from the light emitting body of the operating status indicator lamp and sending it to the optical cable is provided in the operating status indicator lamp. This is disclosed.

[Industrial application field]

The present invention relates to a signal detection method for obtaining a lighting signal by using the lighting light of a device when the operating state of the device is indicated by the lighting of an operating state indicator light.

[Prior Art] In information communication equipment or systems including telecommunication equipment, information processing equipment, power supply equipment, air conditioning equipment, etc. used for these equipment, as a means for notifying the operating status of various devices constituting the equipment or system, Some devices notify the operating state of the device by lighting up an operating state indicator light mounted on the device.

When detecting the operating status of equipment or a system, if the operating status of the equipment or system is configured to be notified by the lighting of its operating status indicator, the lighting of the operating status indicator may be used. be. As a conventional signal detection method using the light emitted from the operating status indicator lamp, an optical coupling section 7 is provided near the operating status indicator lamp 2 mounted on the device 1 as shown in FIG. There is a method of detecting the operating state of the device 1 by transmitting a signal to the signal processing device 6 via the signal cable 26 and performing signal processing.

In this system, as shown in FIG. 14, an optical fiber optical cable 4 is fixedly installed in an optical coupling socket 8 provided near the operating status indicator light 2, and an operating status indicator is displayed. Connect the lighting light from light 2 to optical cable 4
receives the light, transmits the optical signal using the open cable 4 to the signal processing device 6, and transmits the optical signal to the photoelectric conversion unit 9 in the signal processing device 6.
There is an optical signal transmission method in which the operating state of the device 1 is detected by the post-processing unit 10 which converts the signal into an electrical signal.

Further, as shown in FIG. 15, a photoelectric converter 9 is provided in an optical coupling socket 8 provided near the operating status indicator lamp 2, and the operating status indicator lamp 20 is converted into an electrical signal on the device 1 side. An electrical signal transmission method has also been used in which the electrical signal is converted to the signal processing device 6 using an electrical cable 11, and the operating state of the device 1 is detected by the processing section 10 in the signal processing device 6. .

[Problem to be solved by the invention]

In the conventional signal detection method for detecting the lighting of the operating status indicator lamp 2, the optical coupling unit 7 for detecting the five lighting lights is externally attached near the operating status indicator lamp 2.

In terms of structure, ■ there is a risk of falling off.

■ Visual confirmation of the lighting status of operation indicator light 2 Sexuality decreases.

In terms of characteristics, ■ Easily affected by external light such as disturbance light.

■　From the internal parts and circuits of the device susceptible to induction and noise. easy to give (especially the 15th method shown).

It had the disadvantage of having an unstable element.

The present invention aims to solve the above-mentioned drawbacks, and aims to provide a signal detection method that reliably detects the lighting of the operating status indicator lamp 2 and sends the lighting signal to the signal processing device 6. There is.

Reference numeral 2 is an operating status indicator lamp, which indicates the operating status of the device 1 by lighting, and 3 is a light emitting body.

Something that emits light in response to the operating state of the device 1.

4 is an optical cable, which serves as a transmission medium for optical signals;
Reference numeral 5 denotes a lighting light input means, which is provided in the operation indicator lamp 2 and introduces the light emitted from the light emitter 3 and sends it to the optical cable 4; The operating state of the device 1 is determined from the lighting signal.

[For production]

Since the lighting light input means 5 is integrally molded within the operating status indicator lamp 2, the operation of receiving the light from the light emitter 3 and transmitting it to the optical cable 4 is performed stably and reliably from both the structural and characteristic aspects. I can do it.

[Means to solve the problem]

FIG. 1 is a detailed explanatory diagram of the present invention.

In the figure, reference numeral 1 denotes a device, which constitutes the equipment or system whose operating state is to be detected [Embodiment] FIG. The lighting light manual means 5 basically has a refractive index n.

The optical waveguide 12 is made of resin and has an external connection connector 13. The optical waveguide 12 has a base 14
It penetrates through and is fixed to the base 14 with an external connection connector 13.

The operating status indicator light 2 includes an anode electrode 15. which is provided on a base 14 and insulated from each other. Cathode electrode 16. A light emitting body 3 attached via a metal fitting 17 fixed to its tip. A conducting wire 18 is provided to connect the anode electrode 15 and the light emitting body 3, and these parts are molded with a transparent resin material 19 having a refractive index nz (nz < nl).

When a positive DC voltage is applied to the anode electrode 15 and a negative DC voltage is applied to the cathode electrode 16, light is emitted from one light emitting body 3.
The light emitted from the light emitter 3 passes through the optical waveguide 12 and reaches the external connector 13. External connection connector 13
is an interface point with the signal processing device 6, and is connected to the signal processing device 6 by an optical cable 4 (not shown).

Therefore, when the operating status indicator lamp 2 lights up, the lighting light is received by the optical waveguide 12, and the lighting signal sent to the external connection connector 13 is optically transmitted to the signal processing device 6 via the optical cable 4. At this time, the 9 lighting light input means 5 is connected to the base 1.
Since it is provided on the fourth side, the visibility of the LED as an indicator light is not impaired.

Here, since materials are used in which the relationship between the refractive index n1 of the optical waveguide 12 and the refractive index n2 of the transparent resin material 19 is n, >n, the influence of external light can be reduced.

For example, it is possible to use a large number of resins, such as a combination of nz:x boxy resin (nz = 1.51) and nl: polycarbonate (n, = 1.59).

FIG. 3 shows a configuration diagram of another embodiment of the present invention, in which one end of the optical cable 4 constitutes the lighting light input means 5. For this purpose, a guide 20 for guiding one end of the optical cable 4 is provided on the metal fitting 17 directly below the light emitting body 3, and a fixing member 21 for fixing the optical cable 4 to the base 14 is provided.

In this case, the light emitted from the two light emitters 3 is directly input from one end of the optical cable 4 and is transmitted as an optical signal to the signal processing device 6.

Since the lighting light input means 5 has a structure in which the optical cable 4 is directly inserted into the guide 20, the material of the optical cable 4 does not depend on the refractive index of the transparent resin material 19. In other words, the transparent resin material 19 is limited by the refractive index. Instead, you can use any resin you like.

FIG. 4 shows a configuration diagram of a specific embodiment of the present invention, and FIG. 5 shows an illustration of the incidence of lighting light.

In FIGS. 4 and 5, the cathode electrode 16 inside the LED, that is, inside the operating status indicator light 2, is formed into an L-shaped structure and fixed upside down to the base 14.

A hole 22 is bored in a portion of the metal fitting 170 fixed to one end of the square cathode electrode 16 to which the light emitter 3 is attached. One end of an optical waveguide 12 having a resin structure and a refractive index of nl is fixed at the position of the hole 22 of the metal fitting 17, and the other end of the optical waveguide 12 is fixed to the base 14 by an external connection connector 13. Each component has a refractive index nt (n
Needless to say, it is molded with a transparent resin material 19 with i < nt.

Therefore, the light emitted from the 1 light emitting body 3 is transmitted through the hole 22 of the metal fitting 17.
The light enters the optical waveguide 12 and is guided to the external connector 13.

FIG. 6 shows a configuration diagram of another specific embodiment of the present invention, in which the optical cable 4 serves as the lighting light input means 5.

As can be seen from the figure, one end of the optical cable 4 is replaced with the optical waveguide 12 in FIGS. It is fixed to the base 14. In other words, when one end of the optical cable 4 is inserted from the base 14 side, the guide 2
0, and one end thereof is in contact with the light emitting body 3. In this case, the light emitted from one light emitter 3 is directly incident on one end of the optical cable 4.

FIG. 7 shows a configuration diagram of another specific embodiment of the present invention, and FIG. 8 shows a diagram illustrating the incidence of lighting light.

In FIGS. 7 and 8, a resin structure with a refractive index of n is provided near the cathode electrode 16 provided in the center of the LED, that is, the operating status indicator light 2. In FIG.

An optical waveguide 12 is provided, one end of which is fixed to a base 14 with an external connector 13. Each component is molded from a cloudy resin material 23 having a refractive index n□ (nx<nt).

The light emitted from the light emitter 3 is scattered by the cloudy resin material 23, and a part of the scattered light enters the optical waveguide 12 as shown in FIG.
reach.

For example, as an example of the optical waveguide 12 and the cloudy resin material 23.

Numerous resins can be used, such as a combination of n8: cloudy resin (nt -1,51) and nl: polycarbonate (nt -1,59).

As the cloudy resin, a mixture of an epoxy resin and a cloudy substance such as silicon oxide is used.

FIG. 9 shows a configuration diagram of another specific embodiment of the present invention, in which the optical cable 4 serves as the lighting light input means 5.

As can be seen from the figure, a structure in which one end of the optical cable 4 is inserted along the guide 20 is used instead of the optical waveguide 12 in FIGS. 7 and 8.

In this case as well, the scattered light emitted from one light emitter 3 directly enters the optical cable 4, and an optical signal is transmitted.

The optical cable 4 is made of a cloudy resin material 23 with a refractive index n
It does not have to depend on 2.

FIG. 10 shows a configuration diagram of another specific embodiment of the present invention, and FIG. 11 shows a diagram illustrating the incidence of lighting light.

In Figures 10 and 11, LED, I! 11. An optical waveguide 12 having a resin structure and a refractive index of n is provided near the cathode electrode 16 provided in the center of the operating status indicator 2, and one end of the optical waveguide 12 is fixed to the base 14 with an external connector 13. has been done. Further, a reflection plate 25 is attached via a reflection plate fixing member 24 provided at one end of the metal fitting 17, so that a part of the light from one light emitting body 3 is transmitted to the reflection plate 2.
The light is reflected by the optical waveguide 12 and enters from one end of the optical waveguide 12. Needless to say, each part is molded with a transparent resin material 19 having a refractive index na (n+>nz).

Therefore, a portion of the light emitted from one light emitter 3 is reflected by the reflection plate 25 as shown in FIG.

FIG. 12 shows a configuration diagram of another specific embodiment of the present invention, in which the optical cable 4 serves as the lighting light input means 5.

As can be seen from the figure, a structure in which one end of the optical cable 4 is inserted along the guide 20 is used instead of the optical waveguide 12 in FIGS. 11 and 12.

In this case as well, the optical waveguide 1 with the resin structure shown in FIGS. 11 and 12
As in the case of 2, the light from the light emitter 3 reflected by the 2 reflection plate 25 enters from one end of the optical cable 4.

[Effects of the Invention] As explained above, according to the present invention, the three lighting light input means are integrated into the operating status indicator light in all claims, so it is stable in terms of structure and characteristics. It is possible to reliably detect the lighting light.

[Brief explanation of drawings]

FIG. 1 is a detailed explanatory diagram of the present invention, FIG. 2 is an explanatory diagram of the configuration of one embodiment of the present invention, and FIG. 3 is a diagram of the configuration of another embodiment of the present invention.
FIG. 4 is a block diagram of a specific embodiment of the present invention, FIG. 5 is a diagram explaining the incidence of lighting light, FIG. 6 is a block diagram of another specific embodiment of the present invention, and FIG. 7 is a block diagram of another specific embodiment of the present invention. Specific configuration diagrams of other embodiments,
FIG. 8 is an explanatory diagram of the incidence of the lighting light, FIG. 9 is a configuration diagram of another specific embodiment of the present invention, FIG. 10 is a configuration diagram of another specific embodiment of the present invention, and FIG. Explanation diagram of lighting light incidence, 1st
FIG. 2 is a configuration diagram of another specific embodiment of the present invention. FIG. 13 is an explanatory diagram of a conventional signal detection method, FIG. 14 is an explanatory diagram of lighting light detection in a conventional optical signal transmission method, and FIG. 15 is an explanatory diagram of lighting light detection in a conventional electric signal transmission method. In the figure, 1 is the device, 2 is the operating status indicator, 3 is the light emitter, and 4
1 is an optical cable, 5 is a lighting light input means, 6 is a signal processing device, 12 is an optical waveguide, 13 is an external connection connector, 14 is a base, 15 is an anode electrode 16 is a cathode bridge, 17 is a metal fitting, and 19 is a transparent resin material , 20 is a guide, 22 is a hole, 2
3 represents a cloudy resin material.

Claims (6)

[Claims] (1) The operating status indicator light (2) of the device (1) whose operating status is indicated by the lighting of the operating status indicator light (2)
In a signal detection method configured to detect the lighting of the lamp and transmit the lighting signal to the signal processing device (6), the light emitted from the light emitting body (3) of the operating status indicator lamp (2) is introduced, and the optical cable ( 4) A signal detection system characterized in that a lighting light input means (5) for sending out the signal is provided within the operating status indicator light (2). (2) The lighting light input means (5) connects the light emitter (3) to the base (14) of the operating status indicator light (2).
A metal fitting (17) is held on the side and has a hole drilled in the part of the light emitting body (3), and an operating status indicator light that introduces the light emitted from the light emitting body (3) through the hole. (2)
The signal detection system according to claim 1, further comprising: an optical waveguide (12) that guides the signal to the base (14) side. (3) The lighting light input means (5) includes an optical waveguide disposed near the light emitter (3) and an operating status indicator light ( 2) The signal detection system according to claim 1, wherein the light emitting element (3) is molded so that the scattered light from the light emitter (3) is incident on the optical waveguide. (4) The lighting light input means (5) includes an optical waveguide disposed near the light emitter (3) and a reflector plate (25) that reflects the light from the light emitter (3), 3) The signal detection method according to claim 1, characterized in that the light emitted from the optical waveguide is reflected by the reflecting plate (25) and made to enter the optical waveguide. (5) The optical waveguide is formed of a resin structure, and the refractive index n_1 of the resin is selected to be larger than the refractive index n_2 of the resin used to mold the operating status indicator light (2). The signal detection method according to claims (2) to (4). (6) A guide (20) is provided on the base (14) of the operating status indicator light (2), and the guide (20)
4. The signal detection system according to claim 2, wherein the optical cable (4) is inserted into the optical waveguide, and the optical waveguide is constituted by the optical cable (4).