JPS6132479Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a window opening/closing sensor device using an optical transmission system.

Currently, there is an increasing need to monitor the opening and closing of windows in each room from a distance for the purpose of crime prevention in buildings and households. For this purpose, it is necessary for the open/closed state of the window to be sent as a signal to the monitoring position, and electrical or mechanical sensor systems are being developed.

The present invention can be an effective means in this regard, and is a new and useful window that can detect the open/closed state of the window with an optical system using optical fibers and electrically transmit the detection signal to the monitoring device. The object of the present invention is to provide an opening/closing sensor device.

Hereinafter, the present invention will be explained in detail according to embodiments with reference to the drawings.

FIG. 1 is a block diagram of a window opening/closing sensor system showing one embodiment of the present invention.

Windows 2a and 2b are built into a window frame 1 such as an aluminum sash, and a light emitting element 3 and a light receiving element 4 are arranged in the upper part of the window frame 1. Further, shutter mechanisms 5a and 5b are provided at the upper end track portions of the windows 2a and 2b, and an optical fiber 6a is connected between the light emitting element 3 and the shutter mechanism 5a.
An optical fiber 6b is connected between the shutter mechanism 5a and the shutter mechanism 5b, and the optical fiber 6b is connected between the shutter mechanism 5b and the light receiving element 4.
They are optically connected to each other by optical fibers 6c. The light emitting element 3, the light receiving element 4, the shutter mechanisms 5a, 5b, and the optical fibers 6a, 6b are embedded in the window frame 1, and cannot be seen from outside, which is very effective for crime prevention.

Figures 2a and b are the shutter mechanism 5 shown in Figure 1.
It is a main part configuration diagram around a and 5b. FIG. 2a shows the window in the open and closed state, and FIG. 2b shows the window in the closed state.

In the shutter mechanism 5a, an end face of an optical fiber 6a and an end face of an optical fiber 6b are arranged facing each other with a certain distance between them, and a movable plate 7 is supported in the gap so as to be vertically movable. The movable plate 7 has a flat upper portion and a hemispherical lower portion. The movable plate 7 is positioned downward when the window is opened as shown in FIG. 2a, and at this time, the optical fibers 6a and 6b are optically coupled between their opposing end faces. Therefore, the output light from the light emitting element 3 is transmitted from the optical fiber 6a to the optical fiber 6b, and is input to the light receiving element 4. In the transmission system connecting the light emitting element 3 and the light receiving element 4, the optical shutter mechanisms 5a and 5b are connected in parallel, and when one of the optical shutter mechanisms 5a and 5b is optically coupled, the output light of the light emitting element 3 is is incident on the light receiving element 4.

On the other hand, as shown in FIG. 2b, when the window is closed, the movable plate 7 rises because the upper edge of the window 2a comes into contact with the protrusion and pushes it up, so that the optical fiber 6a and the optical fiber The movable plate 7 interposes the space between the opposing end faces of the member 6b, so that no optical coupling occurs.

The optical shutter mechanism 5b is also constructed in exactly the same manner as described above.

Note that when the optical shutter mechanisms 5a and 5b are connected in series in a transmission system, optical transmission is interrupted when at least one of the windows 2a and 2b is closed.

FIGS. 3a and 3b are a plan view and a front view showing one embodiment of the movable plate 7. FIG.

FIGS. 4a and 4b are a plan view and a front view showing another embodiment of the movable plate 7. FIG.

The movable plate shown in FIG. 4 has a through hole 8 formed in the light shielding plate part.
is arranged on the opposing surface between the optical fiber 6a and the optical fiber 6b, and optical coupling is performed only through the through hole 8. In a transmission system in which the shutter mechanisms 5a and 5b are connected in series, the window The light receiving element 4 is irradiated with output light only when both 2a and 2b are closed. When one or both windows 2a, 2b are opened, the output light to the light receiving element 4 is blocked.

With the above configuration, an output signal corresponding to light irradiation from the light receiving element 4 can be led to the monitoring point, and the open/closed state of the windows 2a, 2b can be notified.

According to the present invention, the drive of the light emitting element and the detection of the output signal of the light receiving element are composed of an electrical signal system, but the sensor mechanism that connects the light emitting element and the light receiving element is composed of an optical system, and the optical signal is transmitted via an optical fiber. is transmitted, so there is no risk of electrical shock due to electric leakage, and it is safe from intrusion of rainwater, etc. Furthermore, optical fibers are thin and lightweight, making it easy to embed them in aluminum sash or the like. The structure itself is simple and can be manufactured at relatively low cost.

Note that the light emitting element and the light receiving element may not be embedded in the window frame, but may be arranged by extending optical fibers and disposed at the monitoring point. In this case, since there is no electrical wiring near the window frame, a highly reliable system that does not malfunction even with induced noise caused by lightning or the like can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a window opening/closing sensor system showing an embodiment of the present invention. FIGS. 2a and 2b are configuration diagrams of main parts around the shutter mechanism shown in FIG. 1. Figures 3a and 3b are a plan view and a front view showing one embodiment of the movable plate. FIGS. 4a and 4b are a plan view and a front view showing another embodiment of the movable plate. DESCRIPTION OF SYMBOLS 1... Window frame, 2a, 2b... Window, 3... Light emitting element, 4... Light receiving element, 5a, 5b... Shutter mechanism, 6a, 6b, 6c... Optical fiber, 7... Movable plate.

Claims (1)

[Claims for Utility Model Registration] A light emitting element disposed at the end of an optical fiber,
A light receiving element is arranged at the other end of the optical fiber and receives the light from the light emitting element, and a light receiving element is arranged at an intermediate position of the optical fiber and selectively communicates the light from the light emitting element according to the opening/closing operation of the window. A window opening/closing sensor system for obtaining an electrical signal corresponding to the opening/closing operation of a window, comprising a shutting shutter mechanism, the shutter mechanism having an end face of an optical fiber and an end face of the optical fiber spaced apart from each other by a certain distance. placed opposite,
A movable plate that selectively blocks communication of light is supported in the gap so as to be reciprocating, and the movable plate comes into contact with or separates from the edge of the window when the window is opened or closed. A window opening/closing sensor system characterized by being configured to perform reciprocating motion.