JP3059564U - Radio wave shielding device - Google Patents

Abstract

(57) [Problem] To provide a radio wave shielding device capable of restricting only incoming radio waves in a plurality of desired frequency ranges. SOLUTION: The radio wave shielding device for restricting the use of a communication device such as a portable telephone is provided with a plurality of transmission output means (201) for outputting the same frequency as a radio wave transmitted from a base station. An antenna (3) for transmitting a radio wave output from the transmission output means (201); an output switching means (202) for switching operation and non-operation of the transmission output means (201); Output means (20
An output level adjusting means (203) for adjusting the output level when 1) is operating; an operation confirming means (6) for emitting light when the transmission output means (201) is operating; Power supply input means (5) for supplying electricity to the transmission output means (201) and the operation confirmation means (6), and a main switch (4) for controlling the activation of the entire apparatus. Characteristic radio wave shielding device.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a radio wave shielding device, and more specifically, by transmitting the same frequency as a radio wave transmitted from a base station, a communication device such as a portable telephone cannot receive a radio wave transmitted from the base station. The present invention relates to an improvement of a radio wave shielding device.

[0002]

[Prior art]

 2. Description of the Related Art In recent years, portable telephones and communication devices dedicated to calling have become widespread, which has made it possible to communicate even when going out, which is useful in emergencies.

[0003] On the other hand, however, the presence of such communication devices and the like often causes inconvenience to surroundings in public facilities, hospitals, trains, movie theaters, theaters, and the like, which is a major problem. I have.

[0004] Therefore, in these facilities and the like, calls for self-restraint of the use of communication devices are made by announcements or the like, but it is difficult to completely restrict the use of the calls even by this call.

In order to solve these problems, a radio wave shielding device for restricting reception of a communication device has recently been proposed.

Here, FIG. 5 is a block diagram showing a radio wave shielding device described in Japanese Utility Model Registration No. 3044061. In FIG. 5, reference numeral 21 denotes a device for transmitting jamming radio waves. Antenna.

In the figure, reference numeral 26 denotes a transmission output device, which outputs a radio wave having the same frequency as a radio wave transmitted from a base station such as a communication device, and transmits the radio wave to the antenna 21. Originated via

[0008] In this case, a communication device or the like cannot receive regular radio waves from the base station, thereby restricting use.

For this reason, by using the radio wave shielding device in a place where the use of communication equipment is desired to be restricted, it is possible to prevent the adverse effect caused by the use of communication equipment, which has recently become a problem.

[0010]

[Problems to be solved by the invention]

 By the way, in FIG. 5, reference numeral 23 denotes a band switching adjustment volume. In the conventional radio shielding device, the band switching adjustment volume 23 has a structure in which the frequency of the radio wave transmitted from the antenna 21 is adjusted. As a result, a radio wave of a desired frequency can be transmitted.

[0011] However, the frequency of radio waves used in communication devices is not constant, and currently differs depending on the type of communication device and the company providing the communication service.

[0012] For example, in addition to the frequency used by a communication device capable of talking with a call-only communication device, a service such as 800 MH, 1.5 GH, and 1.8 GH is provided for a portable telephone capable of talking. It depends on the vendor.

[0013] For this reason, in the conventional radio wave shielding device that adjusts a desired frequency by using a band switching adjustment volume, the use of all communication devices cannot be restricted at the same time. There is a problem that the adverse effects cannot be completely prevented.

On the other hand, even in a place where use of communication equipment is desired to be restricted, there are cases where only radio waves in a certain frequency range are desired to be usable for communication between employees.

Therefore, an object of the present invention is to provide a radio wave shielding device capable of restricting only incoming calls in a plurality of desired frequency bands.

[0016]

[Means for Solving the Problems]

 The radio wave shielding device of the present invention is a radio wave shielding device for restricting the use of communication equipment such as a portable telephone, and has a plurality of transmission outputs for outputting the same frequency as the radio wave transmitted from the base station. Means, an antenna for transmitting a radio wave output from the transmission output means, an output switching means for switching operation and non-operation of the transmission output means, and an output switching means when the transmission output means is operating. Output level adjusting means for adjusting the output level, operation confirmation means for emitting light when the transmission output means is operating, and power supply for supplying electricity to the transmission output means and the operation confirmation means. And a main switch for controlling activation of the entire apparatus.

Since the radio wave shielding device of the present invention has a plurality of transmission output means for outputting jamming radio waves, the frequency of the radio waves output from the plurality of transmission output devices is determined in advance by the frequency for which use is restricted. By setting the range, it is possible to simultaneously restrict the use of multiple communication devices that use different frequencies.

Further, the radio wave shielding device of the present invention has an output switching means for switching between activation and deactivation of the transmission output means, so that only a desired frequency can be used. For example, it may be possible to use only communication equipment dedicated to calling, for example, for communication between employees.

[0019]

[Embodiment of the invention]

 In the radio wave shielding device of the present invention, a plurality of transmission output means for outputting the same frequency as the radio wave transmitted from the base station are connected to the power input means via the main switch. Each of the means is connected to an output switching means for switching between activation and deactivation of the transmission output means, and an output level adjusting means for adjusting the output level when the transmission output means is operating. , An antenna for radio wave transmission is connected.

Similarly, an operation confirmation means for confirming the operation of the apparatus is connected to the power input means via the main switch, and the operation confirmation means emits light when the apparatus is operated. Structure.

Here, the main switch is connected to a sensor means for detecting a radio wave transmitted from a communication device or the like. Only when the sensor means detects the signal, the main switch is operated and the transmission output means is connected. It should be a structure that works. As a result, the trouble of turning on / off the main switch can be saved, and unnecessary power consumption can be prevented.

Further, when the sensor means is connected, the sensor means includes a warning means for warning that the use of the communication device or the like is prohibited when the sensor device receives a radio wave transmitted from the communication device or the like. The warning means may be provided in an easily visible place different from the main body of the apparatus. For example, when a communication device is to be used, it is preferable that a display plate indicating a character such as “prohibition of carrying” be made to emit light.

[0023]

【Example】

 FIG. 1 is a block diagram showing a configuration of a radio wave shielding device according to an embodiment of the present invention. FIG. 1 is a block diagram illustrating a configuration of the radio wave shielding device according to the embodiment. It is.

In FIG. 2, reference numeral 2 denotes a radio wave output unit. The radio wave output unit 2 includes a transmission output unit 201 for outputting a radio wave having the same frequency as the frequency whose use is desired to be restricted, and the transmission output unit 201. An output switching means 202 for switching the operation or non-operation of the transmission means, and an output level adjusting means 203 for adjusting the output level when the transmission output means 201 is operating.

The radio wave shielding device 1 of the present invention includes a plurality of the radio wave output units 2, so that the use of radio waves in a plurality of frequency ranges can be restricted at the same time. Unlike this, it is possible to enforce restrictions on the use of communication equipment.

In the figure, reference numeral 3 denotes an antenna for transmitting jamming radio waves. In the radio wave shielding device 1 of the present embodiment, two types of jamming radio waves are transmitted from each antenna 3 using two antennas. Outgoing calls are allowed.

Further, in the figure, 5 is a power input means, and 4 is a main switch for controlling the operation of the whole apparatus.

Further, in FIG. 6, reference numeral 6 denotes an operation confirmation means that operates when any of the transmission output devices 2 is operating. In this embodiment, an LED is used and any of the transmission output devices 2 is used. It emits light when is activated.

When using the radio wave shielding device 1 of this embodiment configured as described above, the frequency of the radio wave output from the transmission output means 2 is set in advance, and then the power input means 5 It is only necessary to connect a commercial 100V to the power supply and turn on the main switch 4.

As a result, a radio wave of a frequency whose use is desired to be restricted is transmitted from the antenna 3, so that the communication device or the like cannot receive a regular radio wave from the base station, and the use of the communication device can be restricted.

When it is desired to use only radio waves of a specific frequency, the output switching means 202 connected to the transmission output means 201 for outputting radio waves of the corresponding frequency is operated to stop the output of radio waves. By doing so, it is possible to prohibit the output of radio waves of the frequency. Therefore, in the radio wave shielding device 1 of this embodiment, even when the radio wave shielding device 1 is in the operating state, for example, only a device dedicated to calling can be used for communication between employees.

Further, in the radio wave shielding device 1 of the present embodiment, by operating the output level adjusting means 203, it is possible to adjust the area where the use of the communication device is desired to be restricted. In addition, it is possible to provide an area where communication equipment can be used.

Next, FIG. 2 is a block diagram showing another embodiment of the radio wave shielding device of the present invention. In the radio wave shielding device 1 of this embodiment, the radio wave shielding device 1 for detecting the radio wave transmitted from the communication device is used. The sensor unit 7 is provided, and when the sensor unit 7 detects a radio wave transmitted from the communication device, the main switch 4 is activated and the transmission output means 2 is activated.

As described above, in the radio wave shielding device of the present embodiment, the sensor unit 7 controls the operation of the main switch 4, and when the sensor unit 7 does not receive the radio wave transmitted from the communication device, the main switch 4 is turned on. Since it does not operate, it is possible to save the trouble of turning on / off the main switch and also to prevent unnecessary power consumption.

In FIG. 1, reference numeral 10 denotes an antenna for receiving a radio wave transmitted from a communication device, and reference numeral 9 denotes a detection unit for detecting the radio wave received by the antenna 10 and converting it into an electric signal. Reference numeral 8 denotes an amplifier for amplifying the electric signal from the detector 9.

Next, FIG. 3 shows an embodiment in which the embodiment shown in FIG. 2 is developed. In FIG. 3, reference numeral 11 denotes a communication device when the sensor means 7 receives a radio wave transmitted from a communication device or the like. This is a warning means for warning that the use of a device or the like is prohibited. In this embodiment, as shown in FIG. The warning means 11 is connected to the power input means 5 via the power switch 4 and the warning means 11 is separated from the radio wave shielding device so that the warning means 11 can be installed in a conspicuous place or the like.

Therefore, in the radio wave shielding device of the present embodiment, when the sensor unit 7 receives the radio wave transmitted from the communication device and operates the main switch 4, the display panel emits light and the use of the communication device is desired. Alerts the user to self-restraint. Although not shown in FIG. 3, in the case of the embodiment shown in FIG. 3, similarly to the embodiment of FIGS. 1 and 2, when any of the transmission output devices 2 is operating. An operation confirmation means that operates at a time may be appropriately provided.

The embodiment shown in FIG. 2 is characterized in that the sensor unit 7 is provided, and the embodiment shown in FIG. 3 is provided with the sensor unit 7 and the warning unit 11. Since the other features are the same as those of the embodiment shown in FIG. 1, the description of the usage, the operation, and the like, which are the same as those of the embodiment shown in FIG. 1, are omitted.

[0039]

[Effect of the invention]

 The radio wave shielding device of the present invention is embodied in the form described above, and has the following effects.

The radio wave shielding device of the present invention includes a plurality of transmission output means for outputting the same frequency as the radio wave transmitted from the base station, and an antenna for transmitting the radio wave output from the transmission output means. Output switching means for switching between activation and deactivation of the transmission output means, output level adjustment means for adjusting the output level when the transmission output means is operating, and the transmission output Operation checking means for emitting light when the means is operating; power input means for supplying electricity to the transmission output means and the operation checking means; and a main switch for controlling the activation of the entire apparatus. It is characterized by having.

As described above, since the radio wave shielding device of the present invention has a plurality of transmission output means for outputting jamming radio waves, the use of frequencies of radio waves output from the plurality of transmission output devices is limited in advance. It is possible to simultaneously restrict the use of a plurality of communication devices that use different frequencies by setting the frequency range in which the user wants to use.

Further, the radio wave shielding device of the present invention is provided with output switching means for switching the operation and non-operation of the transmission output means, so that only the desired frequency can be used. For example, it may be possible to use only communication equipment dedicated to calling, for example, for communication between employees.

Also, a sensor means for detecting a radio wave transmitted from a communication device or the like is connected to the main switch, and only when the sensor means detects the signal, the main switch is activated and the transmission output means is activated. By doing so, it is possible to save the trouble of turning on / off the main switch and also to prevent wasteful power consumption.

Further, in this case, when the sensor unit receives a radio wave transmitted from the communication device or the like, the sensor unit includes a warning device for warning that the use of the communication device or the like is prohibited. It is possible to call attention to self-restraint.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a radio wave shielding device of the present invention.

FIG. 2 is a block diagram showing a configuration of another embodiment of the radio wave shielding device of the present invention.

FIG. 3 is a block diagram showing a configuration of another embodiment of the radio wave shielding device of the present invention.

FIG. 4 is a diagram showing a use state of the embodiment shown in FIG. 3;

FIG. 5 is a block diagram showing a configuration of a conventional radio wave shielding device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 radio wave shielding device 2 radio wave output unit 201 transmission output unit 202 output switching unit 203 output level adjustment unit 3 antenna 4 main switch 5 power input unit 6 operation confirmation unit 7 sensor unit 8 amplifier 9 detection unit 10 reception antenna 11 warning unit

Claims (4)

[Utility model registration claims] A radio wave shielding device for restricting use of a communication device such as a portable telephone, and a plurality of transmission output means (201) for outputting the same frequency as a radio wave transmitted from a base station. An antenna (3) for transmitting a radio wave output from the transmission output means (201); an output switching means (202) for switching operation and non-operation of the transmission output means (201); Transmission output means (201)
An output level adjusting means (203) for adjusting the output level when the transmission is operating; an operation confirming means (6) for emitting light when the transmission output means (201) is operating; Power supply input means (5) for supplying electricity to the output means (201) and the operation confirmation means (6), and a main switch (4) for controlling activation of the entire apparatus. Radio wave shielding device. 2. A radio wave shielding device for restricting use of communication equipment such as a portable telephone, and a plurality of transmission output means (201) for outputting the same frequency as a radio wave transmitted from a base station. An antenna (3) for transmitting a radio wave output from the transmission output means (201); an output switching means (202) for switching operation and non-operation of the transmission output means (201); Transmission output means (201)
An output level adjusting means (203) for adjusting the output level when the transmission is operating; an operation confirming means (6) for emitting light when the transmission output means (201) is operating; A power input means (5) for supplying electricity to the output means (201) and the operation confirmation means (6), a main switch (4) for controlling activation of the entire apparatus, and a signal transmitted from a communication device or the like. A radio wave shielding device comprising: a sensor means (7) for activating the transmission output means (201) by receiving a radio wave. 3. A radio wave shielding device for restricting use of communication equipment such as a portable telephone, and a plurality of transmission output means (201) for outputting the same frequency as a radio wave transmitted from a base station. An antenna (3) for transmitting a radio wave output from the transmission output means (201); an output switching means (202) for switching operation and non-operation of the transmission output means (201); Transmission output means (201)
Output level adjusting means (202) for adjusting the output level of the transmission output means (201), and power supply input means (5) for supplying electricity to the transmission output means (201).
A main switch (4) for controlling the activation of the entire apparatus; a sensor means (7) for operating the transmission output means (201) by receiving a radio wave transmitted from a communication device or the like; A radio wave shielding apparatus comprising: warning means (11) for warning that use of a communication device or the like is prohibited when the means (7) receives a radio wave transmitted from the communication device or the like. 4. The radio wave shielding device according to claim 3, wherein said warning means is provided outside the device main body.