JP7038395B2 - A radio system or disaster radio system that uses a fan that combines a display device and an audio device. - Google Patents

Description

The present invention relates to a fan having both a display device and an audio device, particularly a fan provided with electronic paper and a piezoelectric speaker.

Patent Document 1 discloses a piezoelectric speaker system. An audio signal is supplied to a piezoelectric element via a low-pass filter and a power amplifier, and a glass plate in contact with the piezoelectric element is vibrated to produce sound. By passing through a low-pass filter, the signal level in the ultra-high frequency range is reduced, so it is possible to prevent the glass plate from breaking.

Patent Document 2 discloses a mobile terminal device. The liquid crystal display panel displays characters and images, and is made to vibrate to generate sound by a piezoelectric element so that the display and the speaker can be used together.

Patent Document 3 discloses a fan with a photovoltaic power generation function. It is a fan with a solar power generation device installed in the fan part of the fan, a storage battery installed in the handle, and a function to charge various devices for various purposes from the storage battery.

Patent Document 4 discloses a fan-type ion generator. It is equipped with a power generation unit that converts the force applied when fanning a fan into a voltage, and an ion generator that uses the voltage to generate ions and release the ions into the air.

Patent Document 5 discloses a light emitting fan. The main body of the fan is composed of a printed wiring board, and a plurality of light emitting diodes are arranged on the wiring pattern of the printed wiring board.
Patent Document 6 discloses a light emitting fan in which a shining bright portion of a light emitting element is provided in a bone frame. And. The bone and the outer peripheral plate are integrally molded with transparent plastic.

Non-Patent Document 1 discloses that Dai Nippon Printing (DNP) and Sekisui Chemical Co., Ltd. have developed an electronic paper that can be used indoors by utilizing a film-type solar cell. Since mid-April 2017, it has been installed as an electronic signboard at convenience stores in Tokyo and is undergoing verification tests.

Non-Patent Document 2 discloses that solar cells attached to windows have begun to be put into practical use. It uses a transparent organic thin-film solar cell film. Mitsubishi Chemical will develop and commercialize a "see-through power generation film" using organic thin-film solar cells, and start market development. "See-through power generation film" using organic thin-film solar cells, which Mitsubishi Chemical will start to develop the market for practical use this time, is a subsidized project of the New Energy and Industrial Technology Development Organization (NEDO) "Development of leading technology for practical application of organic solar cells" Has been adopted, and we have been conducting demonstration experiments on its use for windows and building exteriors. The demonstration experiment is being carried out jointly with 3M Japan, and so far it has been installed in the windows of the Sendai International Center crossing corridor and in the windows near the entrance of the 3M Sendai City Science Museum to solve problems for practical use. ..

Non-Patent Document 3 discloses that Sekisui Chemical is going to mass-produce a film-type solar cell that can be attached by printing technology. Sekisui Chemical Co., Ltd. completed the roll-to-roll mass production technology for film-type dye-sensitized solar cells in March 2017, and introduced a pilot production machine at the Tsukuba Plant (Tsukuba City, Ibaraki Prefecture). Is.

Non-Patent Document 4 discloses a color electronic paper having a thickness of 1 μm. The material is flexible and consumes less power. Andreas Dahlin of Chalmers University of Technology and graduate student Kunli Xiong created this material while studying how to combine conductive polymers with nanostructures. Small cells-called plasmonic meta-surfaces-can be turned on and off with small voltage changes. Similar to LCD subpixels. However, like other reflective displays (as well as regular paper), it does not emit light on its own. The refresh rate is a few times a second, but the resolution has the potential to far exceed LCDs and existing e-paper.

Japanese Patent Application Laid-Open No. 2002-369290 Japanese Unexamined Patent Publication No. 10-164193 Japanese Unexamined Patent Publication No. 2014-217489 Japanese Unexamined Patent Publication No. 2016-07744 Japanese Unexamined Patent Publication No. 07-186208 Japanese Unexamined Patent Publication No. 2017-025166

http://www.itmedia.co.jp/smartjapan/articles/1704/21/news034.html http://www.itmedia.co.jp/smartjapan/articles/1508/10/news045.html http://www.itmedia.co.jp/smartjapan/articles/1704/04/news018.html http://jp.techcrunch.com/2016/10/17/20161014flexible-e-paper-display-is-full-color-but-less-than-a-micrometer-thick/

Uchiwa is in increasing demand as goods necessary for sports support and idol concerts. Further, the practical use of electronic paper as a display device is progressing. Further, piezoelectric speakers (speakers using piezoelectric elements) with high practical value are on the market.

The inventor of the present invention considered the fan as an electronic device, and thought that the value of the fan could be increased by using it as a peripheral device of a smartphone and connecting it by short-range wireless communication such as Bluetooth (registered trademark). ..

An object of the present invention is to provide a fan that can be used as a peripheral device for a smartphone or a personal computer and that has both a display device and an audio device.

The group fan according to the present invention has an electronic paper having a function as a display device provided in the fan portion and a piezoelectric element in close contact with the electronic paper, and the electronic paper vibrates due to a sound source signal applied to the piezoelectric element. It is characterized by functioning as an acoustic device. As a result, it is possible to provide a space-saving and convenient device that can be used as both a display device and an audio device.

Further, a handle for accommodating electronic components, a fan frame connected to the handle, an electronic paper covering the fan frame and functioning as a display device, and a piezoelectric element in close contact with the electronic paper. The electronic paper is vibrated by a sound source signal applied to the piezoelectric element from an electronic component housed in the handle, and functions as an acoustic device. Thereby, it is possible to provide an electronic device including a display device and an audio device.

Further, the short-range wireless communication device is further provided, and the data of the sound source signal to be applied to the piezoelectric element is received from an external device by using the short-range wireless communication device. This makes it possible to provide a device that can be an audio device as an output device of a personal computer or a smartphone.

Further, the short-range wireless communication device is further provided, and the data of the display contents of the electronic paper is received from an external device by using the short-range wireless communication device and the short-range wireless communication device. This makes it possible to provide a device that can be a display device as an output device of a personal computer or a smartphone.

Further, it is provided with a power generation piezoelectric element for generating power required for the electronic paper and the electronic component including the piezoelectric element, and is characterized in that power is generated by using the power of fanning a group fan. This makes it possible to charge various circuits (including those of external devices as well as the circuits inside the fan).

As the short-range wireless communication device, for example, Bluetooth (registered trademark) Bluetooth (registered trademark) or Wi-Fi (registered trademark) Wi-Fi (registered trademark) can be used. It is common practice to use Bluetooth® to exchange acoustic signals digitally. As for the display contents of the display device, Wi-Fi (registered trademark) is often used because it deals with rewriting frequently such as moving images and a large amount of data. Since the display content of the electronic paper is rewritten several times per second, it may be possible to cover it with Bluetooth (registered trademark).

This fan can have a power generation function. And there are two possible ways to do this. The first is to use electronic paper that can generate electricity by light. The second is to convert the force of fanning a fan into electric power by using a piezoelectric element for power generation. Since this fan already has a piezoelectric element for an audio device, it is possible to use both the piezoelectric element of the acoustic device and the piezoelectric element for power generation by providing a switch or the like. ..

When the piezoelectric element of the audio device and the piezoelectric element for power generation are separately provided, it is possible to use the piezoelectric speaker while generating power by using a fan. When switching and using one piezoelectric element, either the power generation function or the sound reproduction function is selected and used.

This fan can be used as a peripheral device such as a notebook computer, a tablet computer, or a smartphone. It is configured to be a peripheral device such as a personal computer via the short-range wireless communication device described above.

Not only that, it is also possible to install a radio receiver on this fan to function as a disaster radio. Even if you don't install a battery, you can generate electricity and charge it by fanning a fan. The radio is received by the electric power, and the sound is reproduced by the piezoelectric speaker. Further, it is also possible to receive the teletext of FM and display the contents of the teletext on electronic paper. FM teletext has already been abolished as a public broadcaster. However, if a local FM broadcasting station is set up in the disaster area, there is a possibility that teletext broadcasting can be carried out.

Furthermore, a uchiwa with a radio function can be used as concert goods or theater goods. At large concert venues and theaters for traditional Japanese performing arts such as Noh and Kabuki, it may be desirable to provide textual information to the audience. In this case, for example, it is conceivable to broadcast text by a local FM broadcasting station, receive it by a radio provided in the fan, and display it on the electronic paper of the fan. In this case, the radio wave for teletext broadcasting is not limited to the FM wave. It will be displayed on the fan of the audience by broadcasting or communicating with radio waves suitable for the venue.
In theaters such as Noh and Kabuki, there are examples of having a tablet computer for commentary for foreigners. Compared to tablet computers, this fan may be cheaper to manufacture.

It can also be used as a smartphone charger. As mentioned above, this fan can have two power generation methods. The electronic paper has a solar power generation function, and the fan power is converted into electric power by a piezoelectric element for power generation. The electric power generated by these can be used for charging a smartphone. For example, when the battery of the smartphone is low and the call is about to be cut off during a call, it is conceivable to connect the fan and the smartphone with a cord and continue the call while fanning the fan.

At that time, when the piezoelectric element for the piezoelectric speaker and the piezoelectric element for power generation are separately provided, the speaker is used as a speaker for talking while fanning the fan and listening to the voice of the other party. Is possible.

Further, when the fan of the present invention is used as a peripheral device of a smartphone, the electronic paper provided on the fan can be displayed on the electronic paper by switching several screens on the smartphone. It is conceivable to display another screen on the display screen of the smartphone and compare it with the screen displayed on the electronic paper. In order to realize this, it is desirable to provide software that links the display of electronic paper and the display of the smartphone as a smartphone application. For example, a part of the screen of a smartphone may be enlarged and displayed on electronic paper, or when multiple apps are used simultaneously on a smartphone, one of the screens of multiple apps may be displayed on electronic paper. It is conceivable that the function will be realized by the application.

Since the fan according to the present invention is configured as described above, it is possible to provide a fan having the function of an electronic device that can be used as a receiver of audio broadcasting or text broadcasting as a peripheral device of a personal computer or a smartphone.

It is the figure which looked at the front view of the group fan which had both the display device and the sound device which concerns on this invention. FIG. 1A is a view seen from the side where the display is made, and FIG. 1B is a view seen from the back side. It is a perspective view explaining the assembly of the group fan which combines the display device and the sound device which concerns on this invention. It is a block diagram which shows the case of use as a peripheral device of a smartphone. It is a block diagram which shows the case of use as a peripheral device of a television. It is a block diagram which shows the case of using as a disaster radio.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Those having the same reference numerals in the figure have the same configuration and function.

≪Appearance of Uchiwa≫
FIG. 1 is a front view of a fan having both a display device and an audio device according to the present invention. FIG. 1A is a view seen from the side where the display is made on the electronic paper 20, and FIG. 1B is a view seen from the back side. The handle 11 of the fan is integrally molded with the fan portion bone frame 12 of the fan, or the molded ones are joined to be integrated. The strength with which the handle 11 and the fan frame 12 are integrated is such that when the user of the fan holds the handle 11 in his hand and blows the fan 10 to generate wind, the electronic paper 20 is moved to generate wind. It is strong enough to be used.

The fan frame 12 of the fan is made of, for example, transparent plastic, and is considered so as not to prevent the user from visually recognizing the image displayed on the display 21 of the electronic paper 20. The electronic paper 20 is cut into a size and shape that covers the fan frame 12 of the fan. The electronic paper 20 can be used as a display unit on almost the entire surface of the cut shape. Then, the piezoelectric element 30 is provided on the back side of the central portion of the electronic paper 20. The piezoelectric element 30, which is also called a piezo element, has a rectangular shape of 10 cm × 14 cm, and has a thickness of 200 μm (micrometer) and is closely attached and fixed. Piezoelectric elements of this size are available on the market. Further, the back side of the electronic paper 20 is adhered to the fan portion bone frame 12 of the fan using a transparent adhesive. FIG. 1B depicts a state in which the fan portion bone frame 12 of the fan is exposed.
The electronic paper 20 and the piezoelectric element 30 may be protected by adhering yet another film to the back side. In that case, for the film to be attached to the back side, a color and a material that enhance the visual effect of the display portion 21 of the electronic paper 20 are selected. By using another electronic paper for the film attached to the back side, it is possible to display images on both the front and back sides of the fan.

≪Uchiwa assembly explanatory drawing≫
FIG. 2 is a perspective view illustrating the assembly of a fan 10 having both a display device and an audio device according to the present invention. The bone frame 12 of the fan portion shows a large number of bones (11 in this case) extending from the handle 11 side as a root. The shape in which the tips of the bones are open is shown, but the tips of 11 bones may be connected to form a frame. As described above, the bone frame 12 of the fan portion is adhered in a state where the piezoelectric element 30 is closely fixed to the back side of the central portion of the electronic paper 20. At that time, it is considered that the wiring of the piezoelectric element 30 and the wiring of the display unit 21 are connected to the electronic circuit provided inside the handle 11 (the wiring is not shown).

≪Use a Uchiwa as a peripheral device for smartphones≫
FIG. 3 is a block diagram when the fan 10 is connected to a smartphone (smartphone) and the fan 10 is used as a peripheral device of the smartphone. A short-range wireless communication circuit 50 is provided on the fan side, and a short-range wireless communication circuit 51 is provided on the smartphone side to exchange data. For short-range wireless communication, Bluetooth (registered trademark) or Wi-Fi (registered trademark) can be considered. Other wireless communication methods may be used.
On the smartphone side, a display control application 26 for displaying the display contents on the electronic paper of the fan and a speaker control application for reproducing the sound on the piezoelectric speaker of the fan are provided, and the display data to be displayed on the fan 10 is displayed. It is in charge of transmission and transmission of audio data to be reproduced in the fan 10.

When the user wants to display a part of the display screen of the smartphone on the electronic paper 20, establish short-range wireless communication between the smartphone and the fan (in Bluetooth, pairing, in Wi-Fi, connect establishment). do). Then, using the display control application 26, the data of the display content to be displayed on the electronic paper is transmitted to the fan side. On the fan side, the short-range wireless communication circuit 50 receives the display data and passes it to the electronic paper drive circuit 25, and the electronic paper drive circuit 25 causes the electronic paper 20 to display the display content. For example, when watching a sport or attending a concert, a user who uses a group fan can display the content that he / she wants to display for a certain amount of time (for example, the score of a cheering song, lyrics, and an explanatory diagram of choreography). It is conceivable to display it on the display portion 21 of the electronic paper 20 of the group fan 10.

When the user wants to listen to the voice of the smartphone with the fan 10, wireless communication may be established suddenly and the voice data may be skipped to the fan side, but the inventor of the present invention makes another useful proposal. .. A piezoelectric speaker is provided on the back cover of a smartphone (mobile phone). The back cover piezoelectric speaker 37 has a piezoelectric element similar to the piezoelectric element 30 inside the back cover that constitutes a part of the housing of the smartphone (mobile phone) (the size is suitable for being attached to the back cover of the smartphone). The piezo) is fixed and the back cover is vibrated to make a speaker. The user can listen to the voice generated by the vibration of the back cover, or by applying the vibration of the back cover to the vicinity of the opening of the external auditory canal to conduct bone conduction. As a result, when the voice is suddenly sent to the Uchiwa side, it is possible to prevent troubles such as sending wrong voice data and causing trouble to people around.

Specifically, when the user is in a noisy environment where it is difficult to hear the voice of the smartphone, the speaker control application 36 is used to set the voice output destination to the back cover piezoelectric speaker 37 instead of the normal smartphone speaker. Switch and listen. Then, after confirming this content, when it is desired to listen to the voice with the fan, a short-range communication connection with the fan 10 is established, and the voice data is sent to the fan side by the short-range wireless communication circuit 51. On the fan side, the short-range wireless communication circuit 50 receives voice data and sends it to the piezoelectric speaker drive circuit 35. The piezoelectric element speaker drive circuit 35 sends a signal to the piezoelectric element 30. The piezoelectric element 30 vibrates the electronic paper 20 to output sound. By this procedure, even in a noisy environment, it is possible to output the audio data to be expanded to the piezoelectric speaker of the fan 10 without making a mistake.

The fan 10 can have a power generation function. There are two ways to generate electricity. First, the electronic paper 20 is a method of using a paper having not only a display function but also a power generation function (solar power generation function). When the fan 10 hits light, power is generated by the light, charging is controlled by the action of the charge control circuit 45, and electric power is stored in the rechargeable battery 40. The stored electric power serves as a power source for the electronic paper and the electronic paper drive circuit, and is used for maintaining the display content displayed on the display portion 21 of the electronic paper 20, rewriting the display content, and the like. Not only that, it is also possible to supply the necessary power to a circuit such as the piezoelectric speaker drive circuit 35.

The second method of power generation is to convert the force that fans the fan into a voltage (electric power) by a piezoelectric element. It is known that when vibration is applied to a piezoelectric element, a voltage is generated, which makes it possible to illuminate a light emitting diode. By using this, it is possible to provide a piezoelectric element for generating electric power by the force of fanning the fan, to generate electric power by the piezoelectric element, and to charge the rechargeable battery 40 by the electric power generated by the piezoelectric element. The piezoelectric element for power generation and the piezoelectric element 30 of the piezoelectric speaker may be provided separately, or may be used in combination. In the case of combined use, a changeover switch for switching between charging and sound reproduction can also be provided.

It is conceivable that the electric power obtained in this way is used not only as a power source required for the electronic circuit in the fan 10 but also as a charger for charging an external device (for example, a smartphone). When the charge control circuit 45 determines that there is sufficient power to charge the external device, it is not shown, but the LED is lit to notify the user. When the user sees it and wants to charge the smartphone, he connects the charging cable and charges the smartphone. If necessary, the Uchiwa fan 10 is fanned for further charging.
In addition to displaying the remaining battery level by lighting the LED, the remaining battery level may be displayed on the electronic paper 20.

≪Use a Uchiwa as a peripheral device for a personal computer≫
When the fan 10 is used as a peripheral device of a personal computer, it can be used in the same manner by replacing the configuration on the smartphone side with the configuration on the personal computer side with almost the same configuration as in FIG. Since the screen of a notebook computer is often small, the display portion 21 of the electronic paper 20 of the fan 10 is useful as an auxiliary screen. By placing a gripping tool for fixing the fan 10 near the display device of the notebook computer, the fan is fixed and the display portion 21 is directed toward the user's easy-to-see side. After establishing short-range wireless communication, the user sends the display content to be displayed on the fan side to the fan side by the display control application 26. Then, the short-range wireless communication circuits 51, 50, the electronic paper drive circuit 25, and the electronic paper 20 work to display the display contents assisting the screen of the personal computer on the fan. PC users can work while looking at the two screens at the same time.

It is also possible for a personal computer user to send audio data to the fan 10 and output the sound from the piezoelectric speaker of the fan when, for example, the sound of the built-in speaker of the notebook computer is not sufficient.

≪Use a fan as a peripheral device for TV≫
When the television has a short-range wireless communication function, the sound of the television can be reproduced by the fan 10. Further, it is also possible to display text data such as a TV program guide and a commentary article of a program on the display portion 21 of the electronic paper 20 of the Uchiwa fan and watch the TV while watching the display portion 21.
FIG. 4 is a block diagram showing a configuration example when a fan is used as a peripheral device of a television. Communication can be established between the TV side and the fan side by the short-range wireless communication circuits 50 and 51. A person who watches TV holds the remote control device 60 of the TV and the fan 10 in his hand and watches the TV from a certain distance. It is possible to change the output destination of the sound to a fan when it is annoying to make a loud sound from the TV. In that case, the user establishes wireless communication between the television and the fan using the remote control device 60, executes the speaker control 36 via the remote control device control circuit 61, and voices to the fan side. Output data. In the group fan 10, a signal is sent to the piezoelectric element 30 via the piezoelectric speaker drive circuit 35, and the electronic paper 20 is vibrated to reproduce sound.
Further, when it is desired to display a TV program guide, a program commentary article, a person correlation diagram of characters in a movie, etc. on a fan, the user operates the remote control device 60 to control the remote control device of the TV. The display content is sent to the electronic paper drive circuit 25 via the short-range wireless communication circuits 51 and 50 via the circuit 61 and the display control 26, and displayed on the display portion 21 of the electronic paper 20.
In this way, the person who watches the television has a fan together with the remote control device 60, which enhances the usability of the television. This is especially useful for elderly people who want to enjoy TV with loud sounds.

≪Use a Uchiwa as a disaster radio≫
There are two possible types of disaster radio. Local governments to prepare for rucksacks that are usually taken out in emergencies in each household, and for people who have to evacuate to school gymnasiums and live in groups in the event of a major disaster. There are two ways to distribute it. The fan according to the present invention can be manufactured at a relatively low cost, and there is a possibility that a convenient radio can be provided as a disaster radio capable of generating power by itself. In the disaster area, it is conceivable to set up a local broadcasting station as an FM broadcasting station. In that case, if the FM character broadcasting technology that was once implemented by 2004 is used, it is possible to put the character information on the radio wave of the radio broadcast, so that the character is displayed on the display portion 21 of the electronic paper 20 of the group fan 10. It is possible to display information and output the sound of radio broadcasting with a piezoelectric speaker. Further, when the battery is insufficiently charged, it can be charged with a fan.

FIG. 5 is a block diagram when the fan 10 is used as a disaster radio. The communication device provided in the fan shown in FIGS. 3 and 4 is replaced with the radio broadcast receiver 70. On the radio broadcasting station side, a radio broadcasting transmitter 71, a character broadcasting device 75, and an audio broadcasting device 76 are provided. The text information on the radio waves broadcast from the radio broadcasting station is received by the radio broadcast receiver 70 of the fan, sent to the electronic paper 20 via the electronic paper drive circuit 25, and the text information is displayed. The audio information is received by the radio broadcast receiver 70, passed to the piezoelectric element 30 via the piezoelectric speaker drive circuit 35, and the electronic paper 20 is vibrated to output the audio.
Further, the fan is charged by the optical charging function of the electronic paper 20, and is also charged by converting the fan force into electric power. This power can also be used to charge smartphones.

≪Use a Uchiwa as a commentary goods in the theater≫
It is also possible to perform a broadcast similar to that shown in FIG. 5 in a theater such as a Noh theater or a Kabuki theater. In that case, for foreigners, it is possible to use the method such as explaining in the language of the country.

10 Uchiwa
11 Handle 12 Fan frame 20 Electronic paper 21 Display part 25 Electronic paper drive circuit 26 Display control app 30 Piezoelectric element 35 Piezoelectric speaker drive circuit 36 Speaker control app 37 Back cover Piezoelectric speaker 40 Rechargeable battery 45 Charge control circuit 50, 51 Short-range wireless communication circuit 60 Remote control device 61 Remote control device control circuit

Claims (10)

It is a radio system consisting of a fan that functions as a radio and a radio broadcasting device that functions as a local broadcasting station that broadcasts locally.
The Uchiwa is
A handle for accommodating electronic components and
The fan bone frame connected to the handle and
An electronic paper that covers the fan bone frame and has a function as a display device, and
It has a piezoelectric element that adheres to the electronic paper.
The electronic parts stored in the handle include
A radio broadcast receiver that receives broadcasts from the radio broadcast device, an electronic paper drive circuit that drives the electronic paper, a piezoelectric speaker drive circuit that drives the piezoelectric element, and a rechargeable battery that supplies power to each circuit. , Including a charge control circuit for controlling the rechargeable battery.
The radio broadcasting device is capable of both text broadcasting and audio broadcasting.
The character information transmitted by the radio broadcasting device is received by the radio broadcasting receiver housed in the handle of the fan, displayed on the electronic paper via the electronic paper drive circuit, and displayed by the electronic paper. A sound source that functions as a device and is received by a radio broadcast receiver housed in the handle of the fan and added to the piezoelectric element via the piezoelectric speaker drive circuit. A radio system characterized in that the electronic paper vibrates due to a signal and functions as an acoustic device. The radio system according to claim 1.
The Uchiwa is
A radio system comprising a piezoelectric element for power generation for generating electric power in order to store electric power in the rechargeable battery, and generating electric power by using the force of fanning the fan. The radio system according to claim 1.
The Uchiwa is
Further, it has a piezoelectric element function changeover switch for switching and using the piezoelectric element as a piezoelectric element for power generation.
A radio system characterized in that the function of the piezoelectric element is used as a piezoelectric element for power generation by the piezoelectric element function changeover switch in order to store electric power in the rechargeable battery, and power is generated by using the force of fanning the fan. The radio system according to claim 2 or 3.
The rechargeable battery is provided with a terminal for supplying power to the smartphone.
A radio system that allows you to continue a call while fanning the fan by connecting the fan to the smartphone with a cord when the battery of the smartphone is low and the call is about to be cut off during a call. The radio system according to claim 1.
The electronic paper has not only a display function but also a power generation function.
A radio system characterized in that when the fan is exposed to light, power is generated by the light, charging is controlled by the action of the charging control circuit, and electric power is stored in a rechargeable battery. It functions as a group fan that functions as a disaster radio distributed by local governments to people who evacuate to the gymnasium and live in groups in the event of a disaster, and as a local broadcasting station that broadcasts locally in the disaster area. A disaster radio system consisting of a radio broadcasting device,
The Uchiwa is
A handle for accommodating electronic components and
The fan bone frame connected to the handle and
An electronic paper that covers the fan bone frame and has a function as a display device, and
It has a piezoelectric element that adheres to the electronic paper.
The electronic parts stored in the handle include
A radio broadcast receiver that receives broadcasts from the radio broadcast device, an electronic paper drive circuit that drives the electronic paper, a piezoelectric speaker drive circuit that drives the piezoelectric element, and a rechargeable battery that supplies power to each circuit. , Including a charge control circuit for controlling the rechargeable battery.
The radio broadcasting device is capable of both text broadcasting and audio broadcasting.
The character information transmitted by the radio broadcasting device is received by the radio broadcasting receiver housed in the handle of the fan, displayed on the electronic paper via the electronic paper drive circuit, and displayed by the electronic paper. A sound source that functions as a device and is received by a radio broadcast receiver housed in the handle of the fan and added to the piezoelectric element via the piezoelectric speaker drive circuit. A disaster radio system characterized in that the electronic paper vibrates due to a signal and functions as an acoustic device. The disaster radio system according to claim 6.
The Uchiwa is
A disaster radio system comprising a piezoelectric element for power generation for generating electric power in order to store electric power in the rechargeable battery, and generating electric power by using the force of fanning the fan. The disaster radio system according to claim 6.
The Uchiwa is
Further, it has a piezoelectric element function changeover switch for switching and using the piezoelectric element as a piezoelectric element for power generation.
A disaster radio system characterized in that the function of the piezoelectric element is used as a piezoelectric element for power generation by the piezoelectric element function changeover switch in order to store electric power in the rechargeable battery, and power is generated by using the force of fanning the fan. .. The disaster radio system according to claim 7 or 8.
The rechargeable battery is provided with a terminal for supplying power to the smartphone.
A disaster radio system that allows you to continue a call while fanning the fan by connecting the fan to the smartphone with a cord when the smartphone's battery is low and the call is about to be cut off during a call. The disaster radio system according to claim 6.
The electronic paper has not only a display function but also a power generation function.
A disaster radio system characterized in that when the fan is exposed to light, power is generated by the light, charging is controlled by the action of the charging control circuit, and electric power is stored in a rechargeable battery.

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