JP2003304170A - Radio recognition light emitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To visually recognize the establishment of radio communication by operating a light emitter when the radio communication is established. <P>SOLUTION: A radio recognition light emitting device is provided with an antenna 20, a switch 60 to be turned on/off by the signal of communication establishment, a Schottky diode 40 connected to a coil 30 inductively coupled to the antenna 20, a capacitor 50 for charge-storing current generated by the Schottky diode 40, and the light emitter 70 that operates by the charge stored in the capacitor 50. The light emitter 70 is made to emit light with the communication establishment of control information to make the communication establishment to be visually recognized. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless recognition light emitting device capable of visually identifying an object when wireless communication is established.

[0002]

2. Description of the Related Art Conventionally, for example, in a plant monitoring device, the operation method of equipment on site is performed by an operation switch on the field panel attached to the equipment. In addition, since the facility is often automatically controlled by the central monitoring facility,
It does not operate frequently on site. Therefore, as a method for reducing the number of sites on the operation panel for the purpose of cost reduction at present, a device performed by a mobile site terminal using wireless communication has been proposed.

[0003]

However, when performing on-site operation of equipment with such a mobile field terminal, in order to reduce the amount of information by using a wireless interface and considering the responsiveness of the mobile field terminal, the site information There was concern about problems such as a lack of quantity.

On the other hand, a light emitting body utilizing electric waves transmitted and received during a call by a strap of a mobile phone and an antenna is used for the purpose of decoration and play. Although it is also possible to apply such a light emitter to the plant device, if there is a mobile phone that is transmitting and receiving in the vicinity even if it is not the mobile phone that is actually transmitting and receiving in the light emitter,
The radio waves may emit light, and it is difficult to confirm transmission / reception by such a light emitter. Further, conventionally, in a communication device using a mobile terminal, a device that visually recognizes that a communication state is established by using a light emitting device using wireless has not been proposed.

Therefore, the present invention has been made in consideration of the above circumstances, and when the above-mentioned inconvenience is solved and the wireless communication between the portable field terminal and the wireless transmission / reception device is established in the plant monitoring equipment or the like, It is an object of the present invention to provide a wireless recognition light emitting device which enables visual recognition by illuminating a light emitting body.

[0006]

A radio recognition light emitting device of the present invention includes an antenna for transmitting and receiving radio waves of communication information such as control information, a coil provided so as to be inductively coupled to the antenna, and the coil. Connected to detect the radio wave, detecting means to supply the rectified current generated by the detecting means, the charge storage means, the transceiver to receive the radio wave received by the antenna, the transmitter and receiver to establish communication A switch means for selectively turning on / off the charge accumulated in the charge accumulating means and a light emitting means for supplying the charge accumulated in the accumulating means via the switch means. In order to achieve the above object, an antenna for transmitting and receiving radio waves for control information communication, a coil for receiving radio waves from this antenna, and Switch means for turning on / off by a signal for establishment, a Schottky diode for detecting a radio wave received by the coil to generate a current, a capacitor for accumulating the generated current as an electric charge, and visually recognizing establishment of communication of control information And a light emitting means for the purpose.

In order to achieve the above-mentioned object, the present invention is characterized in that, in the above-mentioned constitution, a color change is caused at the time of light emission by control information communication, or a blinking light is emitted at the time of light emission.

Further, in order to achieve the above object, the present invention is characterized in that, in the above-mentioned constitution, the use nameplate or the use-specific light emitting device is made to emit light.

According to the above arrangement, the light emitting body emits light when communication is established, which facilitates visual recognition.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a circuit configuration of a wireless recognition light emitting device according to this embodiment.

The present apparatus includes a radio transmitter / receiver 10, a rod-shaped antenna 20 for radio communication provided in the radio transmitter / receiver 10 for transmitting and receiving radio waves for control information communication, and wound around the antenna 20. Coil 30, a Schottky diode 40 connected to one end (a) side of the coil 30, and a capacitor connected between the other end of the Schottky diode 40 and the other end (b) of the coil 30. 50, a switch (SW in the figure) 60 connected to one end (c) side of the capacitor 50 and turned on / off by a signal for establishing communication, and the other end (d) of the switch 60 and the capacitor 50. And a light emitter 70 connected to the side.

An example in which the operation and action of the above configuration are applied to a plant monitoring apparatus will be described with reference to FIGS. 2 and 3.

That is, the present apparatus uses, for example, the portable field terminal 10 as a method of distinguishing the radio transmitter / receiver 10 of each target facility.
0 and the wireless transmission / reception device 10 of the equipment to be operated (step S302 in FIG. 3), the coil 30 receives the radio wave used in the communication (step S30).
4) Then, the Schottky diode 40 detects the current to generate a current (step S306), and accumulates electric charge in the capacitor 40 (step S308) to attach the wireless transceiver 10 to the application nameplate of the panel. Luminous body 70
Is emitted (step S310). As a result, malfunction can be prevented and reliability can be improved by visually distinguishing the equipment to be operated.

Here, since this device does not emit light by detecting radio waves other than the communication between the wireless transmission / reception device 10 and the portable field terminal 100, the switch 60 in the light emission circuit is operated by a signal for establishing communication. It is what or,
Since this device uses a radio wave for communication as a power source, it can be attached to an existing facility without newly providing or modifying the dedicated power source.

Further, as shown in FIG. 4, the present apparatus shown in FIG. 1 is used at amusement facilities such as amusement parks and ski resorts, accommodation facilities such as hotels, or transportation facilities when entering and using the facilities. Card (card 300 with built-in wireless recognition light emitting device)
It is also applicable to authentication by.

That is, an authentication confirmation device 200 having a wireless transmission / reception function installed therein and a facility use card 30 incorporating this device.
When communication is established with 0, the coil 30 receives the radio wave used for communication and the Schottky diode 40
By detecting the current with the use of the device, a current is generated, and an electric charge is accumulated in the capacitor 50, so that the light-emitting body 70 of the facility use ticket accommodating the device is caused to emit light, and the user or the approver visually recognizes that the facility cannot be used. Can be easily determined in. Further, since power wiring is not required, it can be easily applied to existing equipment later.

Further, as shown in FIG. 5, the present apparatus shown in FIG. 1 is capable of recognizing the total amount of food and drink from a table where a user sits at a restaurant, which has been impossible in the past. It is possible.

That is, the accounting terminal (fee authentication device) has a built-in wireless transmission / reception function interlocking with the accounting processing function, from which wireless radio waves corresponding to the total amount of food and drink are sent to the present devices installed on each table. The order card which stores the present device by transmitting the electric current and receiving the radio wave used in the communication with the coil 30 to detect the current with the Schottky diode 40 to generate an electric current and accumulate the electric charge in the capacitor 50. (Wireless recognition light emitting device) The light emitting body 70 provided in the light emitting device 400 is caused to emit light. As a result, the user of each table can visually recognize the total amount of food and drink. Even in this case, since power supply wiring is unnecessary, it can be easily applied to existing equipment later.

It should be noted that the light emission by the light emitting body 70 can be further improved in visibility if it is constituted so as to emit light by blinking or by changing the emission color depending on the situation in which the present device is used.

[0021]

As described above in detail, according to the present invention, since the light emission is notified by the light emitting body when the wireless communication is established, the object can be easily visually identified.
Moreover, it can be realized without the need to provide a new dedicated power source, which is very useful.

[Brief description of drawings]

FIG. 1 is a diagram showing a circuit configuration of a wireless transmission / reception device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an embodiment in which the present invention is applied to a plant monitoring device.

FIG. 3 is a flowchart showing the operation of the embodiment shown in FIGS. 1 and 2.

FIG. 4 is a diagram showing an embodiment in which the present invention is applied to an authentication confirmation device.

FIG. 5 is a diagram showing an embodiment in which the present invention is applied to food and drink accounting.

[Explanation of symbols]

10 ... Radio transmitter / receiver, 20 ... Antenna, 30 ... Coil, 40 ... Schottky diode, 50 ... Capacitor, 60 ... Switch, 70 ... Light emitter.

Claims (3)

[Claims] 1. An antenna for transmitting and receiving a radio wave of communication information such as control information, a coil provided so as to be inductively coupled to this antenna, a detection means connected to this coil for detecting the radio wave, and this detection. The charge storage means to which the rectified current generated by the means is supplied, the transmission / reception device that receives the radio wave received by the antenna, and the on / off control by the communication establishment by the transmission / reception device are stored in the charge storage means. A wireless recognition light emitting device comprising: switch means for selectively supplying electric charge; and light emitting means for supplying the electric charge accumulated in the accumulating means via the switch means. 2. The wireless recognition light emitting device according to claim 1, wherein the light emitting means is configured to emit light in a blinking manner or change a light emitting color. 3. The wireless recognition light emitting device according to claim 1, wherein the light emitting means is configured to emit light according to an application nameplate and / or an application.