JP2006311429A - Portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal which can perform sure and smooth communication, in other words, improve reproducibility of communication in such a case that the portable terminal moves through many places and performs communication with radio tags at each place. <P>SOLUTION: The portable terminal has a communication means for performing the communication with the radio tag, a camera with which an object 2 with a radio tag 3 being an object for communication attached thereto is photographed, a memory which relates data of an image P1 obtained by photographing the object when the communication with the radio tag 3 is successful to data received from the radio tag 3 and preserves the related data, and a liquid crystal screen 11 which simultaneously displays an image P2 being photographed at present together with the image P1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable terminal device equipped with a tag reader / writer function.

  Conventionally, as a portable terminal device equipped with a reader / writer function capable of reading and writing a wireless tag (RFID tag), for example, a device for an arrival confirmation system described in Patent Document 1 is known. The portable terminal device equipped with the reader / writer function described in Patent Document 1 has a wireless tag (RFID tag) attached to a certain place such as a door of each house (house) in advance, and a visitor such as a delivery person visits. When a person visits each home, the tag information stored in a wireless tag attached to the house is read by a portable reader / writer.

By the way, when an active tag or the like that supplies power with a battery or the like is used as the wireless tag, for example, a communication distance of about 10 m can be performed over a relatively long distance. Therefore, when used in the system described in Patent Document 1, it is convenient because the information stored in the wireless tag can be read without bringing the reader / writer close to the wireless tag.
JP 2001-34640 A

  However, with such a wireless tag, there is the convenience that communication can be performed without bringing a reader / writer close to the wireless tag, but the communication distance with the wireless tag increases, so the maximum communication distance is reached during communication. In addition to making it difficult to confirm whether or not there is an inconvenience, the antenna directivity, that is, the influence of the orientation of the reader / writer with respect to the wireless tag is likely to occur. In other words, when a user communicates again with a wireless tag that has been communicated in the past, if the user does not obtain information about the position and orientation with respect to the wireless tag, the communication with the wireless tag cannot be smoothly reproduced and communication can be performed. It is expected that it will take some time to become.

  In addition, since the communication distance with the wireless tag becomes longer, the reachable area is expanded and it is difficult to find the wireless tag. As a result, if the user does not obtain information such as the installation location of the wireless tag, communication cannot be performed quickly, and there may be a problem that it takes more time to communicate.

  The present invention has been made in view of the above circumstances. For example, when a large number of places are moved to communicate with an RFID tag at each place, reliable and smooth communication can be performed. In other words, an object is to provide a portable terminal device equipped with a reader / writer function that can improve the reproducibility of communication.

  The portable terminal device according to the present invention includes a communication unit that performs communication with a wireless tag, a camera that captures an object to which the wireless tag to be communicated is attached, and an imaging target when communication with the wireless tag is successful. The image processing apparatus includes a storage unit that stores image data obtained by photographing an object in association with data received from the wireless tag, and a display unit that displays the image data simultaneously with an image currently being captured. With this configuration, when communication is successful, the object is photographed by the camera, and the next time when communicating with the same wireless tag, the image data photographed first and the image of the object currently photographed by the camera are simultaneously displayed. Displayed and the user moves to a position and orientation where the images match as much as possible, so that communication with good reproducibility can be performed.

  Further, the mobile terminal device of the present invention has a communication unit that communicates with a wireless tag, a camera that captures an object to which the wireless kug to be a communication target is attached, and a communication with the wireless tag. Image processing means for generating the contour of the object from image data obtained by photographing the object to be photographed, storage means for storing the contour data in association with data received from the wireless tag, and the contour data currently being photographed And a display means for displaying on the screen simultaneously with the image. With this configuration, it is possible to perform communication with good reproducibility by moving to a position and orientation such that the contour of the object currently being photographed matches the contour displayed on the display means.

  In the portable terminal device of the present invention, when the image data is stored, the camera magnification at the time of photographing is stored in association with the image data, and the image data is read and displayed on the display unit. And means for activating the camera at the stored camera magnification. With this configuration, it is possible to correctly match the shooting distance between the wireless tag and the portable terminal device in the screen comparison.

  According to the present invention, the RFID reader / writer communication means, the camera for photographing the object attached with the wireless tag to be communicated, the object photographing means when communication with the wireless cugu is successful, and the image of the photographing Storing means for associating data with data received from the tag; means for displaying the image data on a part of the liquid crystal screen; and means for simultaneously displaying an image currently being captured on a part of the liquid crystal screen. Thus, it is possible to provide a portable terminal device equipped with an RFID reader / writer function that can perform communication with good reproducibility when communicating with a wireless cugu that has performed communication in the past.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 shows a mobile terminal device according to a first embodiment of the present invention. In this embodiment, a mobile phone device 1 with a folding camera having a tag reader function is taken as an example of the mobile terminal device. I will explain.
The cellular phone device 1 with a folding camera according to the present embodiment is provided between a camera (not shown) and a wireless tag (RFID tag) 3 attached to each residence (house) 2 shown in FIG. A memory for storing a past captured image P1 when (wireless) communication was possible in the past, a liquid crystal screen 11 serving as display means for simultaneously displaying the captured image P1 and an image P2 being currently captured, and the wireless tag 3 A tag reader (not shown) for reading, and a control unit (not shown) for controlling the camera, memory, liquid crystal screen 11, and tag reader are provided.

Next, the operation of the cellular phone device 1 with a folding camera according to the present embodiment will be described with reference to FIG.
FIG. 2 shows a state when the cellular phone device 1 with a folding camera according to the present embodiment tries to communicate with the wireless tag 3 on the upper left of the entrance door 21 of the house (house) 2. Yes. Note that the liquid crystal screen 11 of the cellular phone device 1 with a folding camera displays a past photographed image P1 and a currently photographed image P2 when the communication succeeded in the past (past) at the same time.

  (1) In the cellular phone device 1 with a foldable camera, the camera magnification when the captured image P1 was previously captured by the built-in camera is associated with the past captured image P1 data in the memory. Saved. Therefore, the control unit provided in the cellular phone device 1 with the foldable camera captures (past) photographed image P1 data of the residence 2 when the communication with the wireless tag 3 is successful by the user's file designation or the like. Then, various data stored in the memory of the mobile phone device 1 with the folding camera in association with the captured image P1 are read, and for example, the camera magnification in the data is automatically set (or activated).

(2) The currently captured image P2 is displayed in correspondence with the current shooting range β. In FIG. 2A, the past shooting range α and the current shooting range β are shifted. Therefore, the past captured image P1 and the currently captured image P2 are displayed on the liquid crystal screen 11 differently. For this reason, the direction of mutual antenna directivity between the RFID antenna (not shown) and the wireless tag 3 of the cellular phone device 1 with the folding camera is different from the direction when the communication succeeded in the past. Is expected to fail.
On the other hand, in FIG. 2B, the portable terminal is configured so that the past captured image P1 and the currently captured image P2 appear to be in the same state while viewing the liquid crystal screen 11 from the state of FIG. The state when the position and orientation of the apparatus 1 are changed to match the past shooting range P1 and the current shooting range P2 is shown. In this position, the distance from the wireless tag 3 and the direction of the antenna directivity between the tag reader antenna (not shown) of the mobile phone device 1 with the folding camera and the wireless tag 3 have been successfully communicated in the past. This is consistent with the state. Therefore, if communication with the wireless tag 3 is performed in this state, communication is likely to succeed. Even if the wireless tag 3 becomes difficult to see due to contamination or the like, if the position of the front door 21 of the residence 2 can be confirmed, the position when the communication is successful can be easily reproduced.

  (3) Here, when the data stored in the wireless tag 3 is successfully read, a unique number (ID) that associates the image P2 being captured with the data of the wireless tag 3 under the control of the control unit. Are stored in the memory in the cellular phone device 1 with a folding camera as a file name. Furthermore, the camera magnification at the time of shooting is saved. Next time, when the communication with the wireless tag 3 of the same residence 2 is performed, the control unit of the cellular phone device 1 with a folding camera reads the file name and displays it as a past image. Set automatically.

In this embodiment, the currently captured image P2 and the camera magnification are saved. However, if data that has already been saved is repeatedly used, it is essential to save these data for each communication. do not do. Further, the data of the past captured image P1 and the corresponding camera magnification may be written in advance in the memory in the cellular phone device 1 with the folding camera as in the present embodiment. It may be registered in the server, so that other users can take in necessary data via the Internet.
In the present embodiment, the past photographed image P1 when the communication was successful is displayed. However, the past photographed image P1 may be stored and displayed with, for example, shading or coloring. In this embodiment, the tag reader is described. However, the present invention can be similarly applied to a mobile terminal device equipped with a reader / writer having a writer function.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
FIG. 3A shows a mobile terminal device according to a second embodiment of the present invention. In this embodiment, a mobile phone device 4 with a folding camera having a tag reader function is used as the mobile terminal device. An example will be described.

  The cellular phone device 4 with a foldable camera according to the present embodiment includes a camera (not shown) and an object to be photographed from the data of the image P3 when communication was successful in the past (in this embodiment, a residence (house)). The image processing means (not shown) for generating the contour F1 of the five front doors 51), the contour F1 obtained by image processing of the data of the image P3 and the image P3, and the camera (not shown) are currently being photographed. A liquid crystal screen 41 which is a display means for simultaneously displaying the image P4, a memory for storing these data, a tag reader (not shown), and a control unit for controlling the camera, the memory, the liquid crystal screen 41 and the tag reader ( (Not shown).

Next, the operation of the cellular phone device 4 with a folding camera according to the embodiment of the present invention will be described with reference to FIGS.
A liquid crystal screen 41 of the cellular phone device 4 with the folding camera shown in FIG. 3 is one of the entrance doors 51 of the residence (house) 5 shown in FIG. 4 taken when communication with the wireless tag 6 was successful in the past. The contour F1 (see FIGS. 3 and 5B) of the photographing part of the entrance door 51 of the residence 5 obtained by image processing of the data of the image P3 (see FIG. 5A) of the photographing range γ including the portion. ) And a part of the image P4 of the front door 51 of the residence 5 currently being photographed.

  (1) In the cellular phone device 4 with a folding camera, as in the first embodiment, a photographed image P3 when communication with the wireless tag 6 has been successful in the past by a built-in camera (not shown) in advance. Is stored in the memory in association with data (contour data) related to the contour F1 obtained by image processing of the past captured image P3.

  (2) Here, the control unit provided in the portable camera-equipped cellular phone device 4 associates the data (contour data) with respect to the contour (F1) of the residence 5 by the user's file designation or the like. Various data stored in the memory are read and, for example, the camera magnification in the data is automatically set (or activated).

  (3) For example, in FIG. 3A, the contour F1 and the image P4 currently being photographed do not match. For this reason, the direction of the antenna directivity between the tag reader antenna (not shown) and the wireless tag 6 of the cellular phone device 4 with a folding camera is different from that when communication was successful in the past. Expected to fail. On the other hand, FIG. 3B shows a state in which the contour F1 and the currently captured image P4 coincide. That is, in this state, the distance between the cellular phone device 4 with the folding camera 4 and the wireless tag 6 and the orientation of the tag reader antenna (not shown) of the cellular phone device 4 with the folding camera have been communicated in the past. It is consistent with the direction of success. That is, if communication with the wireless cugu 6 is started in the state shown in FIG.

  (4) Therefore, FIG. 3 (A) and FIG. 3 (B) are confirmed by directly viewing and confirming both sides of the liquid crystal 41, so that the position of the mobile phone device 4 and the state of FIG. Try changing the direction. Even when the wireless tag 6 becomes difficult to see due to contamination or the like, if it can be confirmed that the contour F1 matches the currently captured image P4, the position at which communication was successful can be reproduced.

  (5) Next, when the data of the wireless tag 6 is successfully read, the data of the contour F1 of the photographing object is generated from the currently captured image P4 data by image processing, and the data of the wireless tag 6 is obtained. The associated unique number (ID) or the like is stored as a file name in a memory in the cellular phone device 4 with a folding camera. Furthermore, the camera magnification is stored. Thus, the next time when communicating with the same wireless tag 6, the file name can be read and displayed as a past image, and the camera magnification can be set.

The present invention is not limited to the above-described embodiment, and can be implemented in various forms without departing from the spirit of the invention.
For example, in the present embodiment, the contour F1 data of the target object obtained by performing image processing on the image P4 currently being photographed and the camera magnification are stored in the memory, but those stored once in the past are used. If so, image processing and storage are not required. Further, the contour data of the object to be photographed and the corresponding camera magnification may be written in the memory in the mobile phone device 4 with the folding camera. These data may be registered in the server, so that other users can take in necessary data via the Internet.

In the present embodiment, the contour F1 of the object to be photographed is generated by image processing. However, a portion surrounded by the contour F1 may be displayed with shading, coloring, or the like. Further, for example, a comment such as “door left upper” may be displayed on the photographed image at the same time so that the photographing location can be understood.
In this embodiment, the tag reader is described. However, the present invention can be similarly applied to a mobile terminal device equipped with a reader / writer having a writer function.

  A portable terminal device according to the present invention includes a communication unit that communicates with a wireless tag, a camera that captures an object to which a wireless tag to be communicated is attached, and an object that has been successfully communicated with the wireless tag. A storage unit that stores captured image data in association with data received from the wireless tag, and a display unit that simultaneously displays an image currently captured and image data when communication with the wireless tag is successful. In addition, since it becomes possible to improve the reproducibility of communication with the same wireless tag, it is useful as a portable terminal device with a tag reader / writer function.

1 is a schematic perspective view showing a mobile phone device with a folding camera according to a first embodiment of the present invention. It explains the operation of the mobile phone device with a folding camera, (A) is an explanatory diagram showing the display state before successfully communicating with the wireless tag, (B) is successfully communicated with the wireless tag Explanatory drawing showing the display state when (A) is explanatory drawing which shows the display state in a liquid crystal screen before succeeding in communication with a radio | wireless tag in the mobile telephone apparatus with a folding camera which concerns on the 2nd Embodiment of this invention, (B) is a radio | wireless tag. Is an explanatory diagram showing the display state on the LCD screen when communication with the device is successful Explanatory drawing which shows the imaging range including a part of the entrance door of the house (house) which is going to communicate by the cellular phone device with the folding camera (A) is explanatory drawing which shows the image (captured image data) when communication is successful by the cellular phone device with the folding camera, (B) is explanatory drawing which shows the outline (contour data) at that time

Explanation of symbols

1, 4 Mobile phone device with folding camera (communication terminal device)
11 LCD screen (display means)
2, 5 Housing (house)
21, 51 Entrance door (object to be photographed)
3, 6 Wireless tag (RFID tag)
F1 Contour P1, P3 Captured image when (wireless) communication was possible in the past P2, P4 Currently captured image α, γ Past captured range β Current captured range

Claims (3)

A communication means for communicating with the wireless tag;
A camera for photographing an object to which the wireless tag to be communicated is attached;
Storage means for storing image data obtained by photographing an object to be photographed when communication with the wireless tag is successful in association with data received from the wireless tag;
And a display means for displaying the image data simultaneously with the image currently being photographed. A communication means for communicating with the wireless tag;
A camera that shoots an object to which the wireless kugu to be communicated is attached;
Image processing means for generating an outline of the object from image data of the object to be imaged when communication with the wireless tag is successful;
Storage means for storing the contour data in association with data received from the wireless tag;
And a display means for displaying the contour data on a screen simultaneously with an image currently being photographed. Means for storing the image magnification in association with the image data when storing the image data;
The portable terminal device according to claim 1, further comprising: a unit that activates the camera at the stored camera magnification when the image data is read and displayed on the display unit.

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