JP6844830B2 - Wireless communication aids and wireless communication methods, wireless communication systems - Google Patents

Description

The present invention relates to a wireless communication auxiliary tool, a wireless communication method, and a wireless communication system capable of obtaining a good communication environment.

When two wireless communication devices are separated from each other, they are communicated by a wireless signal. For example, it is common to operate a printer, a video camera, or a still camera by using an operating device such as a smartphone or a tablet computer using wireless communication represented by WiFi (registered trademark) or BLUETOOTH (registered trademark). It has become a target.

For example, the photographing system, the artificial light source, and the camera described in Patent Document 1 are equipped with a wireless tag on the artificial light source, transmit light source information (for example, color temperature information) of the artificial light source from the wireless tag, and receive a wireless tag receiver. The camera provided with the 40 receives the light source information of the artificial light source, and determines the white balance setting value based on the light source information acquired from the wireless tag.
In this way, when information is transmitted to a receiving device located away from the transmitting device, it is performed by wireless communication.

Japanese Unexamined Patent Publication No. 2008-31252 Japanese Unexamined Patent Publication No. 9-51453 Japanese Unexamined Patent Publication No. 2006-14983

Not only smartphones, tablets, and notebook-type personal computers, but also printers and camcorders are equipped with wireless communication functions. From smartphones and tablets, you can send information to be printed directly to the printer, or use a camcorder. It can be operated. Further, for wireless communication, wireless communication standards such as WiFi (registered trademark) and BLUETOOTH (registered trademark) have been standardized in order to improve the operability of various devices.
However, when devices conforming to a plurality of wireless communication standards communicate in the same frequency band, the communication quality deteriorates due to mutual interference or interference with each other. In addition, it may be difficult for the operator to quickly set an appropriate communication environment because a large number of devices to be communicated conforming to the wireless communication standard are displayed on the operation device.

Therefore, an object of the present invention is to provide an auxiliary tool for wireless communication and a wireless communication method capable of ensuring a good communication environment.

As a result of diligent research to solve the above problems, the present inventor has found that the following invention meets the above object, and has arrived at the present invention.

The wireless communication auxiliary tool of the present invention includes a first wireless communication device operated in accordance with the first wireless communication standard and the first wireless communication device in accordance with the first wireless communication standard. An auxiliary tool for wireless communication that assists communication with a second wireless communication device to be operated, the first end is arranged close to the first wireless communication device, and the second end is said. To accommodate the second wireless communication device by holding the second end on the second end side of the electric wire and the electric wire arranged and used in close proximity to the second wireless communication device. It is characterized by having a magnetically shielded case.

Further, in the wireless communication method of the present invention, a wireless communication device is provided by holding a wire having a first end and a second end and the second end on the second end side of the wire. It is a wireless communication method using a wireless communication auxiliary tool having a magnetic shield case for storing, and conforms to the first wireless communication standard on the first end side of the electric wire of the wireless communication auxiliary tool. In the step of arranging the first wireless communication device to be operated in close proximity and in the magnetic shield case of the wireless communication auxiliary tool, the first wireless communication device is placed in accordance with the first wireless communication standard. It has a stage of accommodating a second wireless communication device to be operated and a stage of transmitting a wireless signal of the second wireless communication device via the electric wire to operate the first wireless communication device. It is a feature.

Further, the wireless communication system of the present invention includes a first wireless communication device operated in accordance with the first wireless communication standard and the first wireless communication device in accordance with the first wireless communication standard. The second wireless communication device to be operated and the first end are arranged close to the first wireless communication device, and the second end is arranged close to the second wireless communication device. A wireless communication auxiliary having a wire to be used and a magnetic shield case for holding the second end on the second end side of the wire and accommodating the second wireless communication auxiliary tool. It is characterized by having an ingredient. In the present application, it is understood that the configuration disclosed in the wireless communication auxiliary tool of the present invention also functions in the corresponding configuration of the wireless communication method and the wireless communication system of the present invention.

According to the present invention, both ends of an electric wire are arranged close to each device between the antenna of the first wireless communication device and the antenna of the second wireless communication device, and the electric wire is interposed. By communicating between the first wireless communication device and the second wireless communication device, wireless communication between the first wireless communication device and the second wireless communication device can be performed through an electric wire. Communication can be performed without being disturbed by other wireless signals.
Here, "close to each device" means that the first end or the second end of the electric wire is sufficiently stable and communicable even if the first end or the second end of the electric wire is not directly connected to the antenna of each device. It means that there is. Therefore, each end of the wire is not in direct contact with the antenna of each corresponding device, but in contact with the housing, substrate, or other component of the first wireless communication device or the second wireless communication device. Cases are also included as close proximity.

It is desirable to have a holding member for holding the first wireless communication device on the first end side of the electric wire. By having a holding member for holding the first wireless communication device, the position between the first end of the electric wire and the first wireless communication device can be set to a distance at which wireless communication is more stable. it can.

It is desirable that the holding member is a housing for accommodating the first wireless communication device. By providing the housing, the first wireless communication device such as a camera can be protected from dust, dust, and scratches caused by collision of other objects. Further, the camera housed in the housing can be attached to the tip of the rod-shaped support member.

It is desirable that the housing has anti-magnetic properties (electromagnetic wave shield). Since the electromagnetic wave shield makes it difficult for wireless signals from other wireless communication devices to reach the first wireless communication device such as a camera, further, wireless communication between the camera and the second wireless communication device It is possible to prevent other disturbing wireless signals from being mixed into the communication.

It is desirable that the housing is an underwater housing in which the first wireless communication device is housed in a watertight state. By making it watertight, the radio signal from the second wireless communication device is transmitted to the air from the antenna of the second wireless communication device and propagates through the electric wire as a part of the communication path even when shooting underwater. However, the camera can be reached from the first end of the electric wire in a watertight state and in a non-contact state with the first wireless communication device such as a camera. Further, the wireless signal from the camera reaches the second wireless communication device by propagating in the opposite direction. Therefore, since water does not intervene in the communication path between the second wireless communication device and the camera, the wireless signal between the second wireless communication device and the camera communicates without significant attenuation. be able to.

It is desirable to include a rod-shaped support member that positions the first wireless communication device at the tip. Since the first wireless communication device such as a camera is located at the tip of the rod-shaped support member, a position away from the operator's position (for example, a place where the rod-shaped member is extended in a low place, a high place, etc.) ) And a wide range of shooting are possible. Further, when the holding member for wiring the electric wire along the rod-shaped supporting member is arranged at predetermined intervals in the rod-shaped supporting member, the holding member holds the electric wire to support the electric wire in a rod shape. Since the wiring can be performed along the member, the electric wire does not get in the way when operating the rod-shaped support member.

The first wireless communication device is preferably a camera. This camera is operated by a wireless signal transmitted from the second wireless communication device via the electric wire. Therefore, the camera arranged at an arbitrary position can be operated on the second wireless communication device side.

It is preferable that the second wireless communication device is a multifunctional mobile communication terminal. By using a multifunctional mobile communication terminal such as a smartphone, the degree of freedom of operation is improved, such as moving to an arbitrary position for operation or operating in an arbitrary posture.

It is desirable that the magnetic shield case is a case using a high frequency electromagnetic wave shielding film. By using a film case, the tolerance for the size of the second wireless communication device housed in the case is improved. In addition, since the operation buttons of the second wireless communication device and the touch panel for operation can be operated even through the film, the operability is also improved in the state of improving the airtightness in order to improve the magnetic shielding. Can be secured.

It is desirable that the electric wire is formed of a coaxial cable. By using a coaxial cable, the network wire of the coaxial cable can function as a protective shield for the core wire serving as a communication path.

When a connecting member for accommodating the conducting wire portion of the electric wire and connecting to the outer surface of the housing in a watertight state is provided at the first end portion of the electric wire, the first end portion of the electric wire is provided. Can be provided on the outer surface of the housing in a watertight state. Since the first end of the electric wire is arranged on the outer surface of the housing, even an existing housing can be easily provided in the housing.

When the first end of the electric wire penetrates the housing and projects into the space inside the housing, the radio signal from the first end of the electric wire is emitted into the space inside the watertight housing. Can be done.

When the first end of the electric wire is embedded in the housing, a wireless signal from the first end of the electric wire embedded in the housing and becomes watertight is transmitted to the inside of the housing via the housing. Can be released into the space of.

It is desirable that the second end is provided with a second connector that fits into the first connector of the second wireless communication device. If the second end of the electric wire is provided with a second connector that fits into the first connector of the second wireless communication device, the second end of the electric wire is connected to the second wireless communication device. Therefore, the electric wire can be stabilized.

In the magnetically shielded case, a second connector that fits into the first connector of the second wireless communication device and a third connector that fits the second end of the electric wire that conducts with the second connector are provided. It is desirable that it is provided. By fitting the first connector of the second wireless communication device in the magnetically shielded case to the second connector, and further fitting the second end of the electric wire to the third connector, the second wireless communication is performed. The distance between the device and the second end can be set to a position where communication is more stable, and communication inside and outside the magnetically shielded case can be made more stable than only through an electric wire.

According to the present invention, wireless communication between the first wireless communication device and the second wireless communication device can be performed through an electric wire without being disturbed by other wireless signals, which is good. The communication environment can be secured.

It is a figure for demonstrating the wireless communication auxiliary tool which concerns on Embodiment 1 of this invention. It is a figure for showing the outline of the communication state using the wireless communication auxiliary tool which concerns on Embodiment 1 of this invention. It is a figure for demonstrating the state at the time of wireless communication which concerns on Embodiment 1 of this invention. It is a figure of the operation screen of the state before starting the application software on the smartphone shown in FIG. FIG. 5 is a diagram of an operation screen in a state where application software is started on the smartphone shown in FIG. It is a figure for demonstrating the underwater photography apparatus using the wireless communication auxiliary tool which concerns on Embodiment 2 of this invention. It is an exploded view of the connection member of the underwater photography instrument shown in FIG. 6 and the first end portion of an electric wire. It is an enlarged view of the 2nd end of the electric wire shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail, but the description of the constituent elements described below is an example (representative example) of the embodiments of the present invention, and the present invention is described below unless the gist thereof is changed. It is not limited to the contents of.

(Embodiment 1)
The wireless communication auxiliary tool according to the first embodiment of the present invention will be described with reference to the drawings.
The wireless communication auxiliary tool 1 shown in FIG. 1 has an electric wire 200 and a magnetically shielded case 60. The electric wire 200 is a coaxial cable, and its first end 201 is arranged close to the camera 20 (first wireless communication device). Further, the second end 202 of the electric wire 200 is arranged close to the smartphone 30 (second wireless communication device).
Both ends of the electric wire 200 (first end 201, second end 202) are close to the camera 20 and the smartphone 30, respectively, and are in non-contact with the antenna (not shown) of the camera 20. , The smartphone 30 is in a non-contact state with respect to the antenna (not shown) and can communicate in accordance with the wireless communication standard.

The camera 20, which is the first wireless communication device, is a digital camera that has a function of being operated by the wireless communication signal in accordance with the first wireless communication standard and can shoot a still image or a moving image.

Application software for wirelessly operating the camera 20 is installed in the smartphone 30, which is the second wireless communication device. The smartphone 30 has a built-in antenna (not shown) that can remotely control the camera 20 by a wireless signal. The second wireless communication device is housed in the magnetically shielded case 60.

WiFi is adopted as the first wireless communication standard in the first embodiment. Here, the first wireless communication standard in the present invention is, for example, from WiFi (registered trademark), BLUETOOTH (registered trademark), or another wireless system, as appropriate, between the first wireless communication device and the second wireless communication device. A wireless communication standard that supports communication can be adopted. As the first wireless communication standard, it is particularly preferable to adopt a wireless communication standard for wireless communication at a relatively short distance, such as WiFi (registered trademark) and BLUETOOTH (registered trademark). Further, the present invention is particularly effective when a highly versatile wireless communication standard having many compatible wireless communication devices, such as these wireless communication standards, is adopted.

The magnetic shield case 60 in the first embodiment is a case using a high-frequency electromagnetic wave shielding film. The magnetic shield case 60 has a bag-shaped high-frequency electromagnetic wave shield film having a size that allows the smartphone 30 to be easily accommodated, and is provided with a chuck portion so that the smartphone 30 can be easily accommodated and taken out. Further, the second end portion of the electric wire 200 is held so as to penetrate a part of the bag-shaped portion of the shield film. The smartphone in the magnetically shielded case 60 can operate the touch panel for its operation even through the film of the magnetically shielded case 60, and can be operated while maintaining high magnetic shielding.

The magnetic shield case 60 is formed by using the high frequency electromagnetic wave shielding film as described above. This high-frequency electromagnetic wave shielding film is a film formed by using a material that shields high-frequency electromagnetic waves, which is also called a so-called radio frequency. This film has a function of shielding electromagnetic waves by providing a thin film made of metal (thin film treatment). For the magnetic shield case 60 of the present invention, it is preferable to use a case in which at least the range corresponding to the screen is transparent so that the screen of the smartphone 30 can be visually recognized. The other parts of the screen may be transparent as well, or may be modified by using a material having better magnetic shielding properties.

The state of use of the wireless communication auxiliary tool 1 according to the first embodiment of the present invention configured as described above will be described with reference to the drawings.
FIG. 2 is a diagram showing an outline of a communication state when the wireless communication auxiliary tool of the present invention is used. Further, FIG. 3 shows an image displayed on the smartphone 30 when wireless communication is performed with the configuration related to FIG. 2.
FIG. 2 is a diagram showing a wireless communication state when a wireless communication auxiliary tool having a configuration corresponding to FIG. 1 is used. By using the wireless communication auxiliary tool 1, the smartphone 30 housed in the magnetically shielded case 60 can obtain a stable communication environment with the camera 20 via the electric wire 200. On the other hand, since the communication signals from the routers 71, 72, 73, which are terminals for other wireless communication, are blocked by the magnetic shield case 60, the smartphone 30 is hindered from communicating with these signals.

FIG. 3A is a screen displayed on the smartphone 30 when trying to set communication without using the magnetic shield case 60 in the configuration corresponding to FIG. 2. On the other hand, FIG. 3B, unlike FIG. 3A, is displayed on the smartphone 30 when the wireless communication auxiliary tool of the present invention including the magnetically shielded case 60 is used, as shown in FIG. Screen.
As shown in FIG. 3A, in the absence of the magnetically shielded case 60, a large number of communication target candidates conforming to the wireless communication standard supported by the smartphone 30 can connect the smartphone 30 to the communication environment. is there. In this state, it takes time to select the camera 20, and the communication state with the camera 20 becomes unstable due to the influence of interference with other communications. On the other hand, in the state shown in FIG. 3B using the wireless communication auxiliary tool of the present invention, only the camera 20 is displayed as a communication target, which is easy to set and a stable communication environment can be secured. Is.

FIGS. 4 and 5 show an example of operation on the smartphone 30 after establishing the communication setting with the camera from the state of FIG. 3 (b). The photographer who operates the smartphone 30 activates application software for wirelessly operating the camera 20, which is a program that causes the smartphone 30 to function as an operating device. To start this application software, tap the shortcut icon 32 displayed on the operation screen 31 as shown in FIG.
The image from the camera 20 is displayed as a finder 33 on the operation screen 31 by the application software started by tapping the shortcut icon 32 (see FIG. 5). When the photographer looks at the viewfinder 33 and sees a scene he / she likes, he / she taps the shutter button 34 on the operation screen 31 to instruct the camera 20 to take a picture.

Such communication between the smartphone 30 and the camera 20 is performed via the electric wire 200 of the wireless communication auxiliary tool 1.
The wireless signal from the smartphone 30 is transmitted in the air from the antenna inside the smartphone 30, and the core wire 211 (see FIG. 7) is connected to one of the communication paths from the second end 202 of the electric wire 200 housed in the magnetic shield case 60. As a part, it propagates to the first end 201 of the electric wire 200 and reaches the antenna inside the camera 20 via the air. The radio signal from the camera 20 reaches the smartphone 30 by propagating in the opposite direction.

In this way, both ends (first end 201, second end 202) of the electric wire 200 are arranged between the antenna of the camera 20 and the antenna of the smartphone 30 in close proximity to each device. By communicating between the camera 20 and the smartphone 30 via the electric wire 200, the wireless communication between the camera 20 and the smartphone 30 can be performed using the electric wire 200 as a transmission line. In addition, the magnetic shield case 60 hinders communication from other communication targets. Therefore, communication can be performed without being disturbed by other wireless signals, and a good communication environment can be ensured by the wireless communication auxiliary tool 1.

Further, since the electric wire 200 only needs to be close to the camera 20 and the smartphone 30, the existing camera 20 or the smartphone 30 can be used as it is, and no special modification for ensuring the communication environment is required.

(Embodiment 2)
An underwater photographing apparatus for operating a camera will be described with reference to the drawings by an example of a wireless communication assisting tool provided with a rod-shaped supporting member according to a second embodiment of the present invention. In FIGS. 6 and 7, the same components as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. Underwater photography equipment is used when operating a camera from land or the like.

Conventionally, underwater camera photography has been performed by the photographer diving underwater together with the camera, or by remote control from water or land. As a camera that can be remotely controlled by being submerged in water, the one described in Patent Document 2 is known. Further, those described in Patent Document 3 are known as those that can be photographed underwater.

The hanging wireless TV camera described in Patent Document 2 has a built-in a downward TV camera, its power supply, and a circuit for wirelessly transmitting an image signal of the TV camera in a watertight container having a transparent window on the lower surface. As a transmitting antenna for wireless transmission, a flat feeder wire is connected to a circuit that wirelessly transmits, and the container is suspended by the feeder wire at any length.

In the camera system and the waterproof housing described in Patent Document 3, when an operation status signal is output from the switch detection unit to the wireless transmission unit according to the operation state of the operation switch of the waterproof housing, the wireless transmission unit wirelessly communicates via the antenna. The operation status signal is wirelessly transmitted to the adapter, the wireless communication adapter transfers the received operation status signal to the camera body via the connector, and the control unit inside the camera body inputs the operation status signal via the connector. Various controls are executed based on.

However, in the hanging wireless television camera described in Patent Document 2, since the feeder wire connected to the wireless transmission circuit is connected to the antenna, in order to apply this technique to the existing camera, the existing camera It is difficult to apply because it is necessary to provide a through hole in the housing of the above and connect the electric wire. Further, if the feeder wire is directly connected to the antenna, the wireless communication may be hindered due to the relationship between the length of the feeder wire and the wavelength of the wireless signal.
Further, in the camera system and the waterproof housing described in Patent Document 3, wireless communication is performed inside the waterproof housing, and remote control is not possible.

Therefore, there is a demand for an underwater photographing instrument capable of wirelessly operating a camera located in water where wireless signals are difficult to propagate, without making major changes, from the water or land.

The underwater photographing instrument 100 shown in FIG. 6 is an operation device which is a second wireless communication device, such as a camera 20, which is a first wireless communication device housed in a housing 10 for underwater photography, from land or water. It is used when operating the smartphone 30. Further, FIG. 7 shows a specific structure for attaching the electric wire 200 to the housing 10, and particularly for explaining the connection via the connecting member 300.

The underwater photographing instrument 100 is an electric wire 200 wired between the housing 10 and the camera 20, a connecting member 300 for connecting the first end 201 of the electric wire 200 to the housing 10, and a rod-shaped supporting member. It is equipped with a rod 400.
A coaxial cable is used for the electric wire 200. As shown in FIG. 7, the electric wire 200 includes a conducting wire portion 210 and a covering portion 220. The lead wire portion 210 is composed of a core wire 211 and a net-like wire 212 paired with the core wire 211. The covering portion 220 is composed of an internal insulator 221 that covers the core wire 211 and an outer skin insulator 222 that covers the mesh wire 212.

As shown in FIG. 6, the connecting member 300 arranges the first end 201 of the electric wire 200 in the housing 10 in a watertight state and in a non-contact state with the antenna of the camera 20. The connecting member 300 is made of resin. Further, as shown in FIG. 7, the connecting member 300 includes a first portion 310, a second portion 320, and a fixing member 330.

The first portion 310 is connected in close contact with the side surface of the housing 10. The first portion 310 is formed in an elongated rectangular parallelepiped shape. The first portion 310 is formed with an elongated first space 311 in which the core wire 211 exposed from the covering portion 220 is housed. For the connection to the housing 10, the housing 10 and the first portion 310 and the second portion 320 may be integrally molded. When the housing 10 and the first portion 310 and the second portion 320 are integrally molded, the underwater photographing instrument 100 can be sold as the housing 10 with the underwater photographing instrument 100.

Further, when the housing 10 is an existing one on the market, the first portion 310 can be welded to the housing 10, attached with an adhesive, double-sided tape, or the like, or screwed. ..
Further, a slot may be provided in the housing 10, a plate-shaped protrusion may be formed in the first portion of the connecting member, and the plate-shaped protrusion may be slid and fitted into the slot to fix the connecting member to the housing. .. When the housing 10 is not used as in the case where the camera is not used underwater, the connecting member 300 can be attached by directly attaching the first portion 310 of the connecting member 300 to the camera 20 with an adhesive or double-sided tape. It may be a holding member for holding the first end 201 of the electric wire 200 and the first wireless communication device.

The second portion 320 is formed with a second space 321 in which the internal insulator 221 and the mesh wire 212 and the exodermis insulator 222, which are thick shaft portions other than the core wire 211, are housed. Further, a male screw surface 322 for the fixing member 330 is formed.
The fixing member 330 is for fixing the electric wire 200 to the second portion 320 in a watertight manner. The fixing member 330 includes a first nut 331 and a second nut 332 through which the electric wire 200 is inserted and screwed into the male screw surface 322, and a packing portion 333 wound or inserted around the electric wire 200. The packing portion 333 closes the gap between the inner peripheral surface of the second nut 332 and the outer peripheral surface of the electric wire 200 to ensure watertightness.

As shown in FIGS. 6 and 8, the second end 202, which is the opposite side of the first end 201 of the electric wire 200, is arranged close to the smartphone 30. The second end 202 of the electric wire 200 is formed so that the internal insulator 221 covering the core wire 211 is exposed from the outer skin insulator 222 and the mesh wire 212. Therefore, the core wire 211 can remain covered with the internal insulator 221 and the reticulated wire 212 can remain covered with the outer skin insulator 222.

Since the second end 202 of the electric wire 200 may be arranged on the smartphone 30 side, the outer skin insulator 222 may be in a state where the coaxial cable covering the whole is cut, or the core wire may be connected from the internal insulator 221. The 211 may be exposed. However, in order to protect the core wire 211, it is desirable that the core wire 211 is covered with the internal insulator 221.

Further, in FIG. 6, the magnetic shield case 60 is provided with a second connector 601 and a third connector 602. The second connector 601 fits into the first connector (not shown) of the smartphone 30 in the magnetically shielded case 60. Further, the third connector 602 is electrically connected to the second connector 601 and the second end portion 202 of the electric wire 200 is fitted. As a result, the smartphone 30 is stably arranged in the magnetically shielded case, and the smartphone 30 and the second end 202 of the electric wire 200 are selectively stabilized by these connectors even if they are substantially inside or outside the case. To communicate.

The second end 202 is fitted to the magnetically shielded case 60 with the third connector as described above. For this holding, in addition to this embodiment, the second end portion 202 may be simply attached to the magnetically shielded case 60, or the magnetically shielded case may be appropriately provided with a connector for the second end portion 202. At this time, it is better to hold it so that it is arranged so that it can quickly communicate with the inside of the magnetically shielded case. For example, it may be held through the inside of the magnetically shielded case, or the fitting connector may communicate with the inside of the magnetically shielded case. It can also be made conductive so that it can be easily used.

As shown in FIG. 6, the rod 400 includes a rod body 410 that expands and contracts in stages, and a mounting base 420 to which the housing 10 can be mounted and the camera 20 can be directly mounted. Further, the electric wire 200 is held at a predetermined interval by the holding member 430 for the rod so that the electric wire 200 can easily follow the movement of the rod 400. The holding member 430 may be of various shapes as long as it can hold the electric wire 200. For example, the electric wire 200 may be inserted and arranged, or the electric wire 200 may be stored and sandwiched in the space between the pair of claws.

Next, the housing 10 will be described.
The housing 10 shown in FIG. 6 is watertight so that the camera 20 can be safely used underwater. The housing 10 is made of transparent resin so that the state of the camera 20 inside can be easily seen from the outside. The housing 10 is formed with a storage space suitable for the outer shape of the camera 20 in order to store the camera 20 inside.

The state of use of the underwater photographing apparatus 100 according to the second embodiment of the present invention configured as described above will be described with reference to the drawings.
As shown in FIG. 6, the photographer attaches the housing 10 in which the camera 20 is housed to the mounting base 420 of the rod 400, adjusts the rod body 410 to an appropriate length, and then holds the base end portion of the rod 400. Then, the camera 20 at the tip is immersed in water.
Next, the photographer operates the camera 20 with the smartphone 30 to take a picture as described with reference to FIGS. 4 and 5 in the first embodiment.

At this time, the camera 20 can easily selectively communicate with the communication device via the electric wire 200 from the first end portion 201 arranged close to each other, and the smartphone 30 is in the magnetically shielded case, so that other interference is small and there is little interference. It is easy to selectively communicate with the communication device via the electric wire 200 from the second end 202 arranged close to each other. Therefore, the communication path between the smartphone 30 and the camera 20 does not need to rely on communication in the air, which is normal wireless communication, and the wireless signal propagates through the electric wire 200 as the communication path. Therefore, the smartphone 30 and the camera 20 The radio signal to and from can be stably communicated without being accompanied by a large attenuation.

Further, the connecting member 300 is arranged so as to come into contact with the outer surface of the housing 10. Therefore, even in the existing housing 10, the connecting member 300 may be easily connected to the housing 10 by adhering or welding the connecting member 300 to the outer surface of the housing 10. , The connecting member 300 can be provided in the housing 10.
Further, since the connecting member 300 houses the core wire 211 exposed from the covering portion 220 of the electric wire 200 to make it watertight, the electric wire 200 is housed without water interposing between the housing 10 and the electric wire 200. It can be placed in close proximity to 10.

Therefore, by interposing the underwater photographing instrument 100 between the camera 20 and the smartphone 30, the wirelessly operable camera 20, which is unsuitable for underwater photography, can be stored in the housing 10 and underwater without major changes. You can shoot with.

Further, as shown in FIG. 7, since the electric wire 200 is formed by a coaxial cable, the network wire 212 functions as a shield for protecting the core wire 211 serving as a communication path from external noise. Therefore, the electric wire 200 can ensure high quality communication.

In the second embodiment, as shown in FIG. 6, the housing 10 is attached to the tip of the rod 400, but if the connection strength between the connecting member 300 and the housing 10 and the strength of the electric wire 200 are sufficient, The housing 10 containing the camera 20 may be directly suspended by the electric wire 200 without using the rod 400.
Further, although the rod 400 expands and contracts, if the housing 10 is provided with a mounting base 420 attached to the tip portion, the rod-shaped support member may be separated into a plurality of parts or may not expand or contract. There may be.

(Other embodiments)
Although the first and second embodiments of the present invention have been described above, the present invention is not limited to the first and second embodiments. For example, the following changes can be made as appropriate.

In FIG. 6 according to the second embodiment, the housing 10 is held so that the first end portion of the electric wire 200 is arranged close to the housing 10 via the connecting member 300. As a configuration in which the first end portion is held close to each other, the electric wire 200 may be projected into the space inside the housing 10 by penetrating the first end portion 201 of the electric wire 200 through the housing 10. Alternatively, the first end 201 of the electric wire 200 may be embedded in the housing 10.

The magnetic shield case 60, which holds the second end 202 of the electric wire 200 arranged on the smartphone 30 (see FIG. 1) side, has an earphone plug (second connector) that fits into the earphone jack (first connector) of the smartphone 30. A connector) may be provided. At this time, it is preferable that the second connector is in a conductive state with the third connector to which the second end portion 202 is fitted.

Therefore, when the earphone plug (second connector) is fitted to the earphone jack (first connector) of the smartphone 30, the wire portion 210 on the second end 202 side of the electric wire 200 is connected to the smartphone 30 via the third connector. Connected to the audio output circuit. When the camera 20 is operated by the smartphone 30, the smartphone 30 does not output voice, and the propagation of the wireless signal by the electric wire 200 is also a minute electric power. Therefore, even if the lead wire portion 210 is in a conductive state to the earphone plug, the audio output circuit is not adversely affected.

Further, the wireless signal from the lead wire portion 210 propagates to the signal line of the audio output circuit connected to the earphone jack of the smartphone 30. Therefore, the wireless signal from the lead wire portion 210 can be propagated to a position closer to the antenna of the smartphone 30, so that the communication quality can be further improved.

Further, by fitting the earphone plug into the earphone jack, the second end 202 of the electric wire 200 is fixed to the smartphone 30. Therefore, the second end 202 of the electric wire 200 can be stabilized. Further, the second end 202 of the electric wire 200 can be arranged close to the smartphone 30.

Further, by providing the housing 10 of FIG. 6 with an electromagnetic wave shield, it is possible to enable good wireless communication even on land. The electromagnetic wave shield of the housing 10 is a magnetic shield layer provided on the inner side surface excluding the photographing window where the camera lens is located when the camera is housed in the housing 10.
This magnetic shield layer can be formed by spraying silver-coated copper powder. As the silver-coated copper powder, those sold as electromagnetic wave shielding materials can be used. In addition, a transparent electromagnetic wave shield film can be attached to the shooting window. Further, it is possible not only to attach the electromagnetic wave shielding film to the photographing window portion but also to attach the electromagnetic wave shielding film to the photographing window portion to form a magnetic shield layer. A metal mesh can be provided on the housing 10 as the magnetic shield layer.

The magnetic shield layer surrounds the camera, and the magnetic shield layer blocks radio waves. At this time, the core wire 211 of the electric wire 200 is exposed in the internal space surrounded by the magnetic shield layer, and only the communication from the electric wire is stably communicated with the camera. By doing so, the magnetic shield layer formed in the housing 10 blocks the wireless signals other than the wireless signals transmitted through the electric wire 200 to the camera. Therefore, even if this underwater photographing apparatus is used in the air, the wireless communication between the camera and the smartphone can be performed without being disturbed by other wireless signals. Therefore, the housing 10 provided with the magnetic shield layer can secure a better communication environment even in water or in the air.

In the first embodiment, as shown in FIG. 1, the first wireless communication device is described as a camera 20 and the second wireless communication device is a smartphone 30, but the first wireless communication device is a printer, a video camera, or the like. It can be a wireless communication device. Further, the second wireless communication device can be a tablet computer or a notebook computer. Further, the wireless communication auxiliary tool can provide a good wireless environment even when the first wireless communication device and the second wireless communication device are located far apart from each other, so that it is installed at a construction site and is suitable for business. It can also be a dedicated wireless communication device.

Further, in the second embodiment, the housing 10 has watertightness, but when used only on land or in the air, the housing 10 may not be watertight. Since the camera 20 is housed in the housing 10, the housing 10 can protect the camera 20 from dust, dust, and scratches caused by collision of other objects. Further, the camera 20 housed in the housing 10 can be attached to the tip of the rod 400.
On the other hand, when the wireless communication auxiliary tool of the present invention is used only on land or in the air, the camera 20 may be directly attached to the rod 400, which is a rod-shaped support member, without using the housing 10.

Further, in the second embodiment, the wireless signal is used for communication between the smartphone 30 and the camera 20. However, when the camera 20 is attached to the pan head installed in the housing, if the pan head is provided with a motor for changing the depression / elevation angle of the camera 20 in the shooting direction, the electric wire 200 of the underwater photography equipment 100 can be connected to this motor. It can also function as a communication path for transmitting a radio signal for driving a camera.
At this time, the depression / elevation angle of the pan head can be changed by a wireless signal from the operating device via an electric wire, as in the case of the camera 20, as long as the motor can be wirelessly operated. If the motor cannot be operated wirelessly, it is desirable to use an electric wire in which the electric wire for propagating the wireless signal for operating the camera 20 and the electric wire for propagating the wired signal for operating the motor are configured as one. ..

Further, the earphone jack of the smartphone 30 may be used as the first connector, and the earphone plug may be provided as the second connector on the second end 202 of the electric wire 200 or the magnetically shielded case 60. Another connector such as a USB connector included in the smartphone 30 may be used as the first connector. For example, if the operating device is a portable terminal device such as a tablet-type terminal device or a notebook-type personal computer, a power plug, a monitor connection connector, or a LAN connector may be used. That is, the connector of the device serving as the second wireless communication device may be appropriately used as the first connector, and the second connector may be any one that can be fitted to these connectors.

Further, although the electric wire 200 has been described using a coaxial cable, any electric wire such as a single wire, a stranded wire, and a parallel wire can be used.

By using this underwater photography equipment, it is possible to use a camera capable of wireless communication, which could not be used sufficiently underwater in the past, underwater without any special modification, so it is possible to take pictures of fish and the seabed as a hobby for individuals. It can be used not only for shooting, but also for commercial surveys and searches conducted by companies.

The wireless communication auxiliary tool of the present invention can be used in various situations in which the first wireless communication device and the second wireless communication device communicate with each other at distant positions. In particular, it is suitable for an environment in which a large number of wireless communication devices communicate wirelessly in the same frequency band.

1 Auxiliary equipment for wireless communication 100 Underwater photography equipment 200 Electric wire 201 First end 202 Second end 210 Lead wire 211 Core wire 212 Reticulated wire 220 Covering part 221 Internal insulator 222 Outer skin insulator 300 Connecting member 310 1 part 311 1st space 312 Side surface 320 2nd part 321 2nd space 322 Male thread surface 330 Fixing member 331 1st nut 332 2nd nut 333 Packing part 340 Tube 400 Rod 410 Rod body 420 Mounting base 430 Holding member 601 2nd Connector 602 3rd connector 10 Housing 20 Camera 30 Smartphone 31 Operation screen 32 Shortcut icon 33 Finder 34 Shutter button 60 Magnetic shield case 71, 72, 73 Router

Claims (12)

A first wireless communication device operated in accordance with the first wireless communication standard and a second wireless communication device operating the first wireless communication device in accordance with the first wireless communication standard. It is a wireless communication auxiliary tool that assists communication.
The first end is arranged close to the first wireless communication device, the second end is arranged close to the second wireless communication device, and the first wireless communication device is used. a wire the Ru transmission path der wireless communications with a second wireless communication device and,
A wireless communication auxiliary tool having a magnetically shielded case for holding the second end and accommodating the second wireless communication device on the second end side of the electric wire. The wireless communication auxiliary tool according to claim 1, further comprising a holding member for holding the first wireless communication device on the first end side of the electric wire. The wireless communication auxiliary tool according to claim 2, wherein the holding member is a housing having magnetic shielding properties for accommodating the first wireless communication device. The wireless communication auxiliary tool according to claim 2 or 3, wherein the holding member is an underwater housing for accommodating the first wireless communication device in a watertight state. Said first wireless communication device is located at the distal end, for wireless communications according to claim 1 having a rod-like support member that have a holding member for holding at least a portion of the wire Auxiliary tool. The wireless communication auxiliary tool according to any one of claims 1 to 5, wherein the first wireless communication device is a camera. The wireless communication auxiliary tool according to any one of claims 1 to 6, wherein the second wireless communication device is a multifunctional mobile communication terminal. The wireless communication auxiliary tool according to any one of claims 1 to 7, wherein the magnetic shield case is a case using a high-frequency electromagnetic wave shielding film. The wireless communication auxiliary tool according to any one of claims 1 to 8, wherein the electric wire is formed of a coaxial cable. In the magnetically shielded case, a second connector that fits into the first connector of the second wireless communication device and a third connector that fits the second end of the electric wire that conducts with the second connector are provided. The wireless communication auxiliary tool according to any one of claims 1 to 9 provided. A radio having a first end and a second end, and a magnetically shielded case for holding the second end on the second end side of the wire and accommodating the wireless communication device. It is a wireless communication method that uses communication aids.
A step of arranging a first wireless communication device operated in accordance with the first wireless communication standard close to the first end side of the electric wire of the wireless communication auxiliary tool.
A step of accommodating a second wireless communication device that operates the first wireless communication device in accordance with the first wireless communication standard in the magnetically shielded case of the wireless communication auxiliary tool.
A wireless communication method including a step of transmitting a wireless signal of the second wireless communication device via the electric wire and operating the first wireless communication device. A first wireless communication device operated in accordance with the first wireless communication standard,
A second wireless communication device that operates the first wireless communication device in accordance with the first wireless communication standard, and a second wireless communication device.
The first end is arranged close to the first wireless communication device, the second end is arranged close to the second wireless communication device, and the first wireless communication device is used. a wire the Ru transmission path der wireless communications with a second wireless communication device and, on the second end side of the wire, holding the second end, the second wireless communication device A wireless communication system having a wireless communication auxiliary tool having a magnetic shield case for storing the device.