JPH06164460A - Radio transmitting/receiving equipment - Google Patents

Abstract

(57) [Abstract] [Object] An object of the present invention is to provide a wireless transmitter-receiver for relaying data transmission, which can be plugged into a general-purpose lighting device socket and operates by a power source received from the socket. In a wireless transmission / reception device for relaying data transmission, a housing (1), a housing protruding from the housing, rotatable with respect to the housing, screwable into a general-purpose lighting device socket, and receiving commercial power Plug (6) and electromagnetic wave transmitting / receiving means (4,5, 5) provided on the surface or inside of the casing.
9), a voltage conversion circuit (2) provided in the housing for converting the commercial power source received by the plug into a predetermined voltage, and operated by the output voltage of the conversion circuit and coupled to the electromagnetic wave transmitting / receiving means. It has a transceiver circuit (3).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless transmitter / receiver used for relaying data transmission indoors, and more particularly to a wireless transmitter / receiver which can be easily installed on a ceiling.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a conventional radio transmitter / receiver. This figure shows a case where the wireless transmission / reception device 14 is used for relaying data transmission indoors. The wireless transmission / reception device 14 is installed on the ceiling of a building, and one or a plurality of wireless transmission / reception devices 10 in a room are used. Data transmission between them.

A wired transmission line 15 is laid between the radio transmitter / receiver 14 and the bus 12, and data is transmitted between the main processor and the main memory via the wired transmission line 15.

Here, the wired transmission line 1 is provided on the ceiling or the ceiling surface.
There is a drawback that special wiring work is required to lay the No. 5 cable.

On the other hand, with respect to the power supply of the conventional radio transmitter / receiver 14, it is necessary to supply the power from the commercial power outlet 17, and the power line 16 may be extended to the existing commercial power outlet 17 along the back of the ceiling or the surface of the ceiling. Or, there was a drawback that it was necessary to add outlets to the ceiling plate and wall surface.

[0006]

As described above, as described above,
When installing the wireless transmitter / receiver on a ceiling or a wall, the power of the wireless transmitter / receiver needs to be supplied from a commercial power outlet, and special work must be performed so that the existing transmitter / receiver can be installed along the ceiling or the ceiling surface. It had the drawback of having to extend the power line to the outlet or add outlets to the ceiling plate or wall.

Further, in the conventional radio transmitter / receiver, there is a drawback that a wired transmission line needs to be laid by the same method as the above-mentioned power supply line in order to perform data transmission between the bus and the radio transmitter / receiver. had.

These drawbacks are particularly problematic when a large number of radio transmitter / receivers are installed in an existing building or factory, or when they are temporarily installed at an event or a conference.

The present invention has been made to solve the above problems, and uses a wireless transmitter / receiver which can be inserted into an existing socket for a lighting device, extracts a commercial power source from the socket, and transmits / receives the wireless power. Converting to a desired DC voltage by the voltage conversion circuit provided in the device, thereby operating the internal electric circuit, and laying a wire transmission line in question,
The purpose is not to lay power lines or add outlets.

[0010]

According to the present invention, a radio transmitter / receiver device includes an electric circuit such as a transmitter / receiver circuit and a central processing circuit in a housing, and the housing has substantially the same shape as a general lighting device. However, it has a plug that can be inserted into a socket for a general-purpose lighting device, and has an antenna or a light generator and a photodetector on the surface of the housing or inside the housing and is applied to the socket. An antenna provided with a voltage conversion circuit for supplying a commercial power source to the electric circuit, and an antenna installed on the surface of the housing or inside the housing is composed of two kinds of antennas or a light generator and a photodetector, The directivity of one of the antennas or the light generator and the photodetector is a fan beam with a large half-value angle, and the directivity of the other antenna or the light generator and the photodetector is a pencil beam with a small half-value angle. Is. On the other hand, the plug can rotate at least 360 degrees with respect to the housing.

[0011]

Since the radio transmitter / receiver of the present invention has the above-described structure, when the radio transmitter / receiver is installed on the ceiling, the required power can be obtained from the existing lighting device socket. In addition, data transmission between the main processor and the main memory connected to the bus can be made wireless.

[0012]

FIG. 1 is a diagram showing a first embodiment of the present invention. In the figure, 8 is a lighting device socket, 1 is a housing, 6 is a plug, 7 is wiring, 3 is a transmission / reception circuit, 2 is a voltage conversion circuit, 4 is an antenna A, and 5 is an antenna B.

The plug 6 and the voltage conversion circuit 2 are connected by a wiring 7, and the commercial AC voltage applied to the socket 8 is supplied to the voltage conversion circuit 2 through the plug 6 and the wiring 7. Which is then converted to the desired DC voltage. This voltage is applied to the transmission / reception circuit 3 and the central processing circuit 1.
Added to 8.

The plug 6 can be rotated at least 360 degrees in the horizontal direction with respect to the housing 1, and the direction of the directivity of the antenna B5 can be arbitrarily changed. After the rotation is completed, the rotation may be prevented by a latch member (not shown) or the like.

The casing 1 can be implemented using a metal or a material that transmits radio waves or light.

The antennas A4 and B5 are installed on or inside the housing 1 and are antennas having different directivity patterns, and are connected to the transmitting / receiving circuit 3, respectively. The directivity of the antenna A4 is a fan beam having a large half-value angle, and wireless data transmission is performed with one or a plurality of transmitting / receiving devices 10 existing indoors. On this occasion,
The antenna A4 may be provided with a function of selecting a transmission path having the best transmission quality with each transmitting / receiving device by performing beam scanning or beam switching.

On the other hand, the directivity of the antenna B5 is a pencil beam having a small half-value angle and is installed so as to face the bus interface transmitting / receiving device 11 and performs data transmission with the bus interface transmitting / receiving device 11.

FIG. 2 is a block diagram of the inside of the wireless transmission / reception apparatus of the present invention. The antenna A4 and the antenna B5 are
The transmission / reception circuit A3 and the transmission / reception circuit B3 are connected to the transmission / reception circuit A3 and the transmission / reception circuit B3, respectively.
Are respectively connected to the central processing circuit 18. The commercial AC power source applied to the socket 8 is converted into a desired DC voltage by the voltage converter 2, and the transmitter / receiver circuit 3
And to the central processing circuit 18.

In the figure, one or both of the antenna A4 and the antenna B5 can be constructed by using a light generator and a photodetector 9.

FIG. 3 is a diagram showing another embodiment of the present invention. In the first embodiment of the present invention shown in FIG. 1, an example in which a light generator and a photodetector 9 are used instead of the antenna B5 is shown. The directivity of the light generator and the photodetector 9 is
It is a pencil beam having a small half-value angle and is installed so as to face the bus interface transmitting / receiving device 11 and performs data transmission with the bus interface transmitting / receiving device 11.

Further, one or a plurality of radio transmitter / receivers 1
Instead of the antenna A4 that performs data transmission with 0, it is also possible to use a light generator and a photodetector 9 that are fan beams whose directivity has a large half-value angle.

FIG. 4 is a diagram showing another embodiment of the present invention, which is an embodiment in which the antenna B5 in FIG. 1 or the photogenerator and photodetector 9 in FIG. 3 is not used.
An antenna A 4 is connected to the transmitting / receiving circuit 3. Using only this antenna A4, data transmission is performed with one or a plurality of wireless transmission / reception devices 10 and a bus interface transmission / reception device 11 installed indoors by a method such as shifting the used frequency. In this case, the data transmission efficiency is lower than that of the above-described embodiment (FIG. 1 or 3), but the structure of the device can be simplified.

FIG. 5 shows an embodiment in which the radio transmitter / receiver 1 of the present invention is used indoors for relaying data transmission. Reference numeral 12 is a bus, and 13 is a lighting device. In the figure, the wireless transmission / reception device 1 is installed on the ceiling of a building, and data transmission is performed with one or a plurality of wireless transmission / reception devices 10 in a room. A bus interface transmitter / receiver 11 is installed on the bus 12 so as to face the antenna B5 or the photogenerator and photodetector 9 of the wireless transmitter / receiver 1, and via the bus interface transmitter / receiver 11, Data transmission is performed between the wireless transmission / reception device 1 and the main processor and main memory connected to the bus 12.

FIG. 6 shows another embodiment of the present invention, showing an example in which the radio transmitter / receiver of the present invention is arranged on a ceiling where a hook ceiling is installed.

In the figure, 1 is a housing of the radio transmitter / receiver of the present invention, 19 is a hook ceiling, 20 is an adapter for hook ceiling, 21 is a socket for hook ceiling, 22 is a connection pipe, and 23 is a lighting device. Socket, 2
Reference numeral 4 indicates internal wiring.

[0026]

According to the present invention, when a wireless transmitter / receiver for indoor data transmission relay is to be installed on the ceiling, it suffices to simply insert it into an existing lighting device socket, laying a power line or an outlet. There is an effect that it is not necessary to additionally install the cable and to lay a wired transmission line between the bus and the wireless transmission / reception device.

Due to the above-mentioned effects, when a large number of radio transmitter / receivers are to be used in an existing building, factory, etc., the installation thereof is significantly facilitated, and in addition, the radio transmitter / receiver is desired to be temporarily used in an event, a conference, etc. In that case, there is an effect that the installation is significantly facilitated.

Due to the above-mentioned effects, the radio transmitter / receiver is not restricted by the place of installation, and generally there are many existing sockets on the ceiling, so there is a high degree of freedom in selecting the place of installation and easy zone design. In addition, there is an advantage that the wireless transmission / reception device can be installed at an optimum position that can realize high transmission quality in indoor propagation having complicated characteristics.

Further, in the wireless transmission / reception of the present invention, since the plug can rotate at least 360 degrees with respect to the housing, it is possible to always direct the directivity to the bus interface transmission / reception device.

[Brief description of drawings]

FIG. 1 is a diagram showing a wireless transmission / reception device of the present invention.

FIG. 2 is an internal block diagram of a wireless transmission / reception device of the present invention.

FIG. 3 is a diagram showing another embodiment of the present invention.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a diagram showing another embodiment of the present invention.

FIG. 6 shows another embodiment of the present invention.

FIG. 7 is a diagram showing a conventional wireless transmission / reception device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 case 2 voltage conversion circuit 3 transmission / reception circuit 4 antenna A 5 antenna B 6 plug 7 wiring 8 lighting device socket 9 light generator and photodetector 10 wireless transmission / reception device 11 bus interface transmission / reception device 12 bus 13 incandescent light bulb 14 conventional Radio transmitter / receiver 15 Wired line 16 Power supply wiring 17 Commercial power outlet 18 Central processing circuit

Claims (4)

[Claims] 1. A wireless transmission / reception device for relaying data transmission, comprising: a housing, a housing protruding from the housing, rotatable with respect to the housing, screwable into a socket for a general-purpose lighting device, and receiving commercial power. A plug, an electromagnetic wave transmitting / receiving means provided on the surface or inside of the housing, a voltage conversion circuit provided in the housing for converting a commercial power received by the plug into a predetermined voltage, and an output voltage of the conversion circuit. And a transmission / reception circuit that is coupled to the electromagnetic wave transmission / reception means. 2. The radio transmitter / receiver according to claim 1, wherein the electromagnetic wave transmitter / receiver installed on the surface of the housing or inside the housing is composed of two kinds of antennas or a light generator and a photodetector. The directivity of one of the antennas or the light generator and the photodetector is a fan beam with a large half-value angle, and the directivity of the other antenna or the light generator and the photodetector is a small half-value angle. A wireless transmission / reception device, which is a pencil beam. 3. The wireless transceiver according to claim 1, wherein the plug is rotatable at least 360 degrees with respect to the housing. 4. A wireless transmission / reception device for relaying data transmission, comprising: a casing, a power cord having a plug coupled to a hooking ceiling for a general-purpose lighting device at one end, and the other end coupled to the casing. An electromagnetic wave transmission / reception means provided on the surface or inside of the housing; a voltage conversion circuit provided in the housing for converting a commercial power source received by the plug into a predetermined voltage; and operated by an output voltage of the conversion circuit. And a transmission / reception circuit coupled to the electromagnetic wave transmission / reception means.