JP2007256180A - Mobile terminal, radio tag detector, and radio tag detection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal having a radio tag detecting function having convenience and operability compatibly, without requiring a large-scaled system for searching a position of an object. <P>SOLUTION: This mobile terminal 50 of the present invention includes a radio tag detector 30 for detecting a radio tag 10 existing in its periphery by radio communication, and for storing detection result information of the radio tag l0 in radio tag control information 40 of a memory 38, and a display part 27 for displaying the output detection result information, and the radio tag detector 30 is provided with a distance detecting part 36 for storing preliminarily the radio tag control information 40 for controlling the detection of the radio tag 10 in the memory 38, and for detecting a distance up to the radio tag 10, and a distance detection processing part 37 for generating the detection result information based on the distance up to the radio tag 10 detected by the distance detecting part 36, according to the preliminarily stored radio tag control information 40, to be stored. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable terminal having a wireless tag detection function capable of specifying the position of a wireless tag and a wireless tag detection method, for example.

  A conventional position specifying system using a wireless tag is a system that detects the position of an article that cannot be equipped with a position specifying apparatus as a relative position to the position of an article that can be equipped with a position specifying apparatus. For example, Patent Document 1 discloses a system for specifying the position of an article equipped with a wireless tag using a position management server for an article equipped with a wireless tag in advance. According to the technique disclosed in Patent Document 1, a wireless tag reader periodically reads an ID code of a wireless tag in a non-contact manner for an article equipped with a wireless tag in advance, and this is provided for each wireless tag. Each wireless LAN terminal relays the ID code and transmits it to the wireless access point, and each wireless access point transmits the received ID code together with the terminal address of the wireless LAN terminal and the access point address of the wireless access point. Send to the location management server. The user requests the position management server to search for the position of the article using the mobile phone terminal. The user receives the search result from the location management server and displays it on the display.

Patent Document 2 discloses a mobile phone having an IC tag detection function.
JP 2005-109919 A JP 2004-013789 A

  In the technique disclosed in Patent Document 1, a wireless tag, a wireless tag reader, a wireless LAN terminal, a wireless LAN access point, and a position management server are required to search for the position of an article. There is a problem that the system becomes large-scale.

  In addition, in the conventional technology, in order to identify the position of the wireless tag attached to the article, it is configured to recognize it as a relative position with respect to the wireless LAN terminal, so that the position of the article can be accurately identified. In addition, in order to be able to specify the absolute position with the conventional technique, there is a problem that a plurality of wireless access points are required and the cost for realizing this is increased. Since the wireless tag reader, the wireless LAN terminal, and the wireless LAN access point are fixed, the position of the article when the article equipped with the wireless tag is moved to a place other than the area configured above. There is a problem that makes searching difficult.

  In the technique disclosed in Patent Document 2, the only function for controlling position detection is on / off control of a detection function for detecting whether or not an IC tag is detected. For this reason, when the detection function is on, there is a problem that an inconvenience such as generating an alarm occurs even if the detection function is out of the communication range.

  The present invention has been made in view of the above-described problems, for example, and does not require a large-scale system for searching for the position of an article, and further has user convenience and operability. It is an object of the present invention to provide a mobile phone terminal having a wireless tag detection function and a wireless tag detection system.

The portable terminal according to the present invention is
A wireless tag detection device that detects wireless tags existing in the vicinity by wireless communication, stores detection result information of the detected wireless tags in a memory, and outputs the same;
A display unit for displaying detection result information output by the wireless tag detection device on a display device;
The wireless tag detection device is
The wireless tag management information for managing the detection of the wireless tag is stored in the memory in advance,
A distance detector for detecting the distance from the wireless tag;
A distance detection processing unit that generates detection result information based on a distance from the wireless tag detected by the distance detection unit according to the wireless tag management information stored in the memory in advance and stores the detection result information in the memory.

  According to the present invention, a mobile terminal and a wireless tag that do not require a large-scale system for searching for the position of an article by providing the mobile terminal with the wireless tag detection device and providing the wireless tag detection device with wireless tag management information There exists an effect that a detection system can be provided. In addition, since the wireless tag detection device includes the distance detection unit and the distance detection processing unit, various controls can be performed in the position search of the article, and the convenience of the user can be improved.

  First, a hardware configuration of a mobile phone terminal 50 according to the following embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of a hardware configuration of a mobile phone terminal 50 according to the following embodiment. The mobile phone terminal 50 is an example of a mobile terminal.

  In FIG. 1, the mobile phone terminal 50 includes a CPU (Central Processing Unit) 911 that executes a program. The CPU 911 is connected to a ROM 913, a RAM 914, a communication board 915, an LCD display device (liquid crystal display) 901, a K / B (Key Board) 902, a speaker 25, and a microphone 26 via a bus 912. A CPU or the like is an example of a processing device.

  The RAM 914 is an example of a volatile memory. The ROM 913 is an example of a nonvolatile memory. These are examples of the storage device.

  The communication board 915 is connected to a wireless antenna, a LAN, and the like. The communication board 915, the wireless antenna, and the like are examples of communication devices.

  The K / B 902, the microphone 18 and the like are examples of the input device.

  The LCD display device 901 is an example of a display device.

  Here, the communication board 915 is not limited to a telephone base station or a wireless LAN, and may be directly connected to the Internet or a WAN (wide area network) such as ISDN.

  The ROM 913 or the RAM 914 stores an operating system (OS), a window system, a program group, and a file group. The program group is executed by the CPU 911, the OS, and the window system.

  The program group stores a program for executing a function described as “˜unit” in the description of the embodiment described below. The program is read and executed by the CPU 911.

  In the file group, what is described as “˜information” in the description of the embodiment described below is stored as “˜file”.

  In addition, the arrows in the flowcharts described in the following description of the embodiments mainly indicate input / output of data, and the data for the input / output of the data is flash memory, RAM, FD, optical disc, CD, MD. (Mini disc), DVD (Digital Versatile Disc), and other recording media. Alternatively, it is transmitted through a signal line or other transmission medium.

  In addition, what is described as “unit” in the description of the embodiment described below may be realized by firmware stored in the ROM 913. Alternatively, it may be implemented by software alone, hardware alone, a combination of software and hardware, or a combination of firmware.

  In addition, a program that implements the embodiment described below may be stored using a recording device using another recording medium such as a flash memory, RAM, FD, optical disk, CD, MD, and DVD.

Embodiment 1 FIG.
Embodiment 1 will be described with reference to the drawings.

  FIG. 2 is a diagram illustrating a basic configuration of the wireless tag 10 according to the first embodiment.

  The wireless tag 10 is a communication module including a wireless communication IC 15 (IC: Integrated Circuit: semiconductor integrated circuit) and a wireless tag antenna 11 for communication.

  The wireless communication IC 15 is integrated with a non-volatile memory 14 for storing a wireless tag ID (ID: Identification) and various types of information, an RF (Radio Frequency) circuit 12 and a logic circuit 13 for wireless communication.

  The non-volatile memory 14 can be a non-rewritable memory or a rewritable memory.

  The logic circuit 13 can perform processing such as calculation, authentication, and encryption.

  The wireless tag antenna 11 is for communication and may be configured to be integrated in the wireless communication IC 15 or may be configured externally to the wireless communication IC 15.

  The wireless tag 10 transmits at least a wireless tag ID that is an identifier of the wireless tag by radio waves.

  FIG. 3 is a diagram illustrating an example of a configuration of the mobile phone terminal 50 including the wireless tag detection device 30 according to the first embodiment. In FIG. 3, the mobile phone terminal 50 includes a normal antenna 20, an RF transmission / reception unit 21, a control unit 22, a memory 23, a clock function unit 24, a speaker 25, a microphone 26, a display unit 27, an operation unit 28, and an external interface 29. A basic component for realizing the function of the mobile phone terminal is provided, and in addition, a wireless tag detection device 30 is provided.

  The wireless tag detection device 30 may be built in the mobile phone terminal 50 or may be attached externally through the external interface 29 of the mobile phone terminal 50.

  The control unit 22 not only controls a normal mobile phone terminal but also controls the wireless tag detection device 30. Specifically, on / off of the function of the wireless tag detection device 30 or control of various settings of the wireless tag detection device 30 instructed by the user through the operation unit 28 is performed. Details will be described later.

  FIG. 4 is a diagram illustrating an example of a block configuration of the wireless tag detection device 30 built in the mobile phone terminal 50 according to the first embodiment.

  4, the wireless tag detection device 30 includes a detection antenna 31, a detection RF transmission / reception unit 32, a detection RF transmission / reception control unit 33, a wireless tag detection unit 34, a wireless tag detection processing unit 35, a distance detection unit 36, and a distance detection processing unit. 37, a memory 38, a management information setting unit 381, and a detection result processing unit 39.

  The detection antenna 31 is an antenna for transmitting and receiving radio waves between the wireless tag 10 and the wireless tag detection device 30.

  A detection RF (Radio Frequency) transmission / reception unit 32 receives a radio wave from the radio tag 10 through the detection antenna 31 and transmits a radio wave to the radio tag 10.

  The detection RF transmission / reception control unit 33 controls the detection RF transmission / reception unit 32. In response to the user's instruction to start the wireless tag detection function, the RF transmission / reception function is turned on through the detection RF transmission / reception control unit 33, and the detection RF transmission / reception unit 32 executes transmission / reception of radio waves between the wireless tag 10 and the wireless tag detection device 30. . In response to the user's instruction to end the wireless tag detection function, RF transmission / reception is turned off through the detection RF transmission / reception control unit 33, and the detection RF transmission / reception unit 32 stops transmission / reception of radio waves between the wireless tag 10 and the wireless tag detection device 30.

  In the memory 38, wireless tag management information 40 is stored. The wireless tag management information 40 is information for managing detection of the wireless tag, and is stored in the memory 38 in advance.

  FIG. 5 is a diagram illustrating an example of the configuration of the wireless tag management information 40. One record of the wireless tag management information 40 includes information such as a wireless tag ID 41, a registered article name 42, a detection setting 43, a detection distance 44, a distance setting 45, detection result information 46, various information 26, and the like. One record of the wireless tag management information 40 corresponds to the wireless tag 10 to be detected.

  Each item of the RFID tag management information 40 excluding the detection result information 46 is set by a user inputting in advance from the operation unit 28 of the mobile phone terminal 50. That is, the user inputs and registers in advance information corresponding to the wireless tag 10 to be detected attached to the article or the like.

  The wireless tag management information 40 is a wireless tag ID 41 for identifying the wireless tag 10 to be detected, a registered article name 42 of the article to which the wireless tag 10 is attached, and whether the wireless tag detection device 30 detects the wireless tag 10. Detection setting 43 for the user to set, detection distance 44 for setting the detection range, distance setting 45 for the user to set whether to enable or disable the distance setting, detection result information for storing the detection result 46 and various information 47 and the like. Here, enabling the distance setting means measuring the distance between the wireless tag detection device 30 and the wireless tag 10, determining whether the distance is within or outside the set value of the detection distance 44, and based on the determination result. This means that the detection result is set in the detection result information 46.

  In FIG. 4, the management information setting unit 381 inputs the wireless tag management information 40 and sets it in the memory 38. That is, the user of the mobile phone terminal 50 according to the first exemplary embodiment uses the operation unit 28 of the mobile phone terminal 50 to store various information of the wireless tag 10 to be registered in the wireless tag detection device 30 of the mobile phone terminal 50. input. The management information setting unit 381 inputs various information input from the operation unit 28 and sets the items in the wireless tag management information 40 in the memory 38.

  In FIG. 4, the wireless tag detection unit 34 detects information transmitted by the received radio wave based on the received radio wave from the radio tag 10 received by the detection RF transmission / reception unit 32.

  The wireless tag detection processing unit 35 processes information of the wireless tag 10 detected by the wireless tag detection unit 34. More specifically, the wireless tag detection processing unit 35 extracts the wireless tag ID from the information of the wireless tag 10 detected by the wireless tag detection unit 34, and the wireless tag ID 41 of the wireless tag management information 40 registered in the memory 38 in advance. Is checked. The wireless tag detection processing unit 35 performs wireless tag detection processing described below according to the detection setting 43 for detecting whether or not to detect the wireless tag 10 set in the wireless tag management information 40 of the memory 38.

  An example of the wireless tag detection process will be described below with reference to FIGS. 4 and 5.

  The wireless tag detection processing unit 35 performs the following detection processing on the wireless tag registered in the wireless tag management information 40 in the memory 38.

  For example, the wireless tag 10-1 is a wireless tag 10 that is registered in the wireless tag management information 40 of the memory 38 by the user but is not detected by the wireless tag detection unit 34 because it is outside the communication range. In this case, the wireless tag detection processing unit 35 determines that the wireless tag 10-1 (wireless tag ID “A”) is out of the communication range, and sets the result as “undetectable” to the detection result of the wireless tag management information 40. Information 46 is set. Further, the result is sent to the detection result processing unit 39 as “undetectable”.

  For example, the wireless tag 10-2 is registered in the wireless tag management information 40 of the memory 38 by the user, and the detection setting 43 is set to “not detected” by the user. In this case, the wireless tag detection processing unit 35 determines that it is not necessary to detect the wireless tag 10-2 (wireless tag ID “B”) or that the detection is prohibited. Set "Do not detect". Further, the result is sent to the detection result processing unit 39.

  For example, the wireless tag 10-3 is registered in the wireless tag management information 40 of the memory 38 by the user, and the detection setting 43 is set to “detect”. In this case, the wireless tag detection processing unit 35 collates the wireless tag ID of the wireless tag 10-3 with the wireless tag ID of the wireless tag 10-3 extracted from the information detected by the wireless tag detection unit 34. If the collation results match, the wireless tag 10-3 (wireless tag ID “C”) can be detected, and “detected” is set in the detection result information 46 of the wireless tag management information 40. The information is sent to the detection result processing unit 39.

  For example, the wireless tag 10-4 is registered in the wireless tag management information 40 of the memory 38 by the user, and the detection setting 43 is set to “detect”. Further, the distance setting 45 of the wireless tag 10-4 is “valid”. In this case, first, the wireless tag detection processing unit 35 compares the wireless tag ID of the wireless tag 10-4 with the wireless tag ID extracted from the information on the wireless tag detected by the wireless tag detection unit 34. If the collation results match, the wireless tag detection device 30 determines that the wireless tag 10-4 (wireless tag ID “D”) has been detected, and then performs distance detection processing. The distance detection process is a process of measuring the distance between the wireless tag 10-4 and the mobile phone terminal 50, and performing a process according to the setting content of the wireless tag management information 40 on the distance measurement result. In the case of the wireless tag 10-4, the wireless tag detection device 30 sets the distance between the mobile phone terminal 50 and the wireless tag 10-4 in the detection result information 46 of the wireless tag management information 40. The information is sent to the detection result processing unit 39. Details of the distance detection process will be described later.

  The wireless tag detection process has been described above.

  Next, the distance detection processing of the distance detection unit 36 and the distance detection processing unit 37 in FIG. 3 will be described in detail.

  The distance detection unit 36 measures the distance between the mobile phone terminal 50 and the wireless tag 10. The means for measuring the distance may be a method of measuring the electric field intensity of the radio wave of the wireless tag 10 and obtaining the distance using the measured signal. Alternatively, the mobile phone terminal 50 and the wireless tag 10 have a clock function, A method may be used in which a distance is obtained by using a difference between a time when the wireless tag 10 transmits a radio wave and a time when the mobile phone terminal 50 receives a radio wave from the wireless tag 10.

  The distance detection processing unit 37 performs processing based on the distance measurement result between the mobile phone terminal 50 and the wireless tag 10 detected by the distance detection unit 36. More specifically, first, the distance detection processing unit 37 extracts distance information between the mobile phone terminal 50 and the wireless tag 10 detected by the distance detection unit 36. The distance detection processing unit 37 takes out the collation result between the ID of the wireless tag 10 and the wireless tag ID 41 of the wireless tag management information 40 in the memory 38 from the wireless tag detection processing unit 35, and detects the detection distance of the wireless tag management information 40 in the memory 38. Based on 44 and the distance setting 45, the distance detection process described below is performed.

  An example of the distance detection process will be described below with reference to FIG.

  Here, the distance detection processing of the distance detection processing unit 37 is processing performed based on a distance measurement result between the mobile phone terminal 50 and the wireless tag 10 detected by the distance detection unit 36.

  When the distance setting 45 is set to “invalid” in the wireless tag management information 40 of the memory 38 (for example, the wireless tag ID “C”), the distance detection processing unit 37 does not perform the distance detection process and detects the detection result information 46. Do not record. That is, either “not detected” or “detected” is recorded in the detection result information 46 by the wireless tag detection processing unit 35. For example, the wireless tag detection processing unit 35 sets information “detected” in the detection result information 46 of the wireless tag 10 (wireless tag ID “C”).

  For example, the case of the wireless tag 10-4 will be described. When the distance setting 45 is set to “valid” in the wireless tag management information 40 of the memory 38 (for example, the wireless tag 10-4), the distance detection processing unit 37 performs a distance detection process. First, the distance detection unit 36 measures the distance between the wireless tag 10-4 and the mobile phone terminal 50. The distance detection processing unit 37 performs processing based on the distance measurement result between the mobile phone terminal 50 and the wireless tag 10-4 detected by the distance detection unit 36. More specifically, the distance detection processing unit 37 detects the detection distance 44 “3 m” of the wireless tag management information 40 and the distance measurement result “1 m” between the mobile phone terminal 50 and the wireless tag 10-4 detected by the distance detection unit 36. ". When the distance measurement result “1 m” is smaller than the detection distance 44 “3 m” (1 m <3 m), it is assumed that the wireless tag 10-4 is detected within the detection distance 44 (3 m), and the distance measurement result information “1 m” is wireless. The detection result information 46 of the tag management information 40 is set. Further, the information is sent to the detection result processing unit 39.

  For example, in the case of the wireless tag 10-5, the distance detection processing unit 37 performs the distance detection process because the distance setting 45 is set to “valid” in the wireless tag management information 40 of the memory 38. First, the distance detection unit 36 measures the distance between the wireless tag 10-5 and the mobile phone terminal 50. Then, the distance detection processing unit 37 performs processing based on the distance measurement result between the mobile phone terminal 50 and the wireless tag 10-5 detected by the distance detection unit 36. More specifically, the distance detection processing unit 37 detects the detection distance 44 “3 m” of the wireless tag management information 40 and the distance measurement result between the mobile phone terminal 50 detected by the distance detection unit 36 and the wireless tag 10-4 (for example, , “3.5 m”). When the distance measurement result is larger than the detection distance 44 (3 m <3.5 m), the distance detection processing unit 37 sets the information as “out of detection distance” in the detection result information 46 of the wireless tag management information 40. . Further, the result is sent to the detection result processing unit 39.

  When the wireless tag detection processing for all the wireless tags registered in the wireless tag management information 40 of the memory 38 is completed, the detection result processing unit 39 stores the wireless tag detection processing unit 35, the distance detection processing unit 37, and the memory 38. Based on the wireless tag management information 40, processing of detection results (detection result processing) is performed. That is, the detection result processing unit 39 displays the registered article name 42 associated with the wireless tag ID 41 and the detection result information 46 corresponding to the wireless tag ID 41 based on the wireless tag management information 40 through the control unit 22 of the mobile phone terminal 50. Displayed on the unit 27. A specific display example of the display unit 27 will be described later.

  In the above description, the method of displaying the position search result of the wireless tag 10 on the display unit 27 of the mobile phone terminal 50 has been described. However, the alarm means using the speaker 25 of the mobile phone terminal 50 can be used as a notification means. Good. In this case, an alarm may be generated when the wireless tag 10 is detected, or an alarm may be generated when the wireless tag 10 is not detected.

  Next, a wireless tag detection system 51 including the mobile phone terminal 50 incorporating the wireless tag detection device 30 according to the first embodiment and an article with the wireless tag 10 attached thereto will be described with reference to FIGS. The wireless tag detection system 51 is a system that performs position detection processing of an article attached with the wireless tag 10 by the mobile phone terminal 50 including the wireless tag detection device 30.

  FIG. 7 is a diagram showing an overall configuration of a wireless tag detection system 51 including a mobile phone terminal 50 equipped with the wireless tag detection device 30 according to the first embodiment.

  In the wireless tag detection system 51, when the user of the mobile phone terminal 50 enables the wireless tag detection function, the wireless tag 10 attached to the article 52 and the wireless tag detection device 30 built in the mobile phone terminal 50 are provided. Perform wireless communication. The RFID tag management information 40 of the RFID tag 10 is registered in advance in the RFID tag detection device 30 built in the portable phone terminal 50 by a user inputting from the operation unit 28 of the portable phone terminal 50 or the like. The wireless tag detection device 30 wirelessly communicates with the wireless tag 10 existing in a communicable range at a predetermined time interval, and can communicate with the wireless tag 10 attached to the article 52 or cannot communicate with the wireless tag 10 and wireless tag ID information. To monitor.

  An example of the position detection processing of the article 52 in the wireless tag detection system 51 will be described below with reference to FIGS.

  In the wireless tag detection system 51, the article A 52-1 (shade), the article B 52-2 (wallet), the article C 52-3 (bag), the article D 52-4 (document), the article E 52-5 (glasses), and the article F 52- 6 (book) are attached with a wireless tag 10-1, a wireless tag 10-2, a wireless tag 10-3, a wireless tag 10-4, a wireless tag 10-5, and a wireless tag 10-6, respectively. The mobile phone terminal 50 includes wireless tags 10-1, a wireless tag 10-2, a wireless tag 10-3, a wireless tag 10-4, a wireless tag 10-5, and a wireless tag 10-6 attached to each article. Tag ID 41, registered article name 42, detection setting 43 for detecting whether or not to detect a wireless tag, detection distance 44 for detecting a distance, distance setting 45 for enabling or disabling the distance setting, etc. Information is read in advance and stored as wireless tag management information 40 (see FIG. 5) in the memory 38 of the wireless tag detection device 30.

  In FIG. 7, a range of a circumference 55 is a communicable range between the wireless tag 10 and the wireless tag detection device 30, and is within a radius of 4 m in the present embodiment. Further, the range of the circumference 54 is set to be within the range of a circle having a radius of 2 m with the wireless tag detection device 30 as the center. Further, the range of the circumference 53 is within the range of a circle having a radius of 3 m with the wireless tag detection device 30 as the center.

  The wireless tag management information 40 of the wireless tag 10-1 attached to the article A 52-1 set in advance has a wireless tag ID 41 of “A”, a registered article name 42 of “article A”, and a detection setting 43 of “ “Detect”, the detection distance 44 is set to “none”, and the distance setting 45 is “invalid” (see FIG. 5).

  The mobile phone terminal 50 searches for the position of the article A 52-1, but the wireless tag 10-1 attached to the article A 52-1 is out of the communicable range 55 and cannot communicate. In this case, the wireless tag detection processing unit 35 stores the detection result in the detection result information 46 of the wireless tag management information 40 as “detection impossible”. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name A of the registered article name through the control unit 22 of the mobile phone terminal 50.

  The wireless tag management information 40 of the wireless tag 10-2 attached to the article B 52-2 set in advance has the wireless tag ID 41 “B”, the registered article name 42 “article B”, and the detection setting 43 “ “Not detected”, the detection distance 44 is set to “2 m”, and the distance setting 45 is “valid” (see FIG. 5).

  In this case, since the detection setting 43 of the wireless tag management information 40 is “not detected”, the wireless tag detection processing unit 35 of the wireless tag detection device 30 does not perform the detection process and “detects” the detection result. Is stored in the detection result information 46 of the wireless tag management information 40. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name B of the registered article name through the control unit 22 of the mobile phone terminal 50.

  The wireless tag management information 40 of the wireless tag 10-3 attached to the article C52-3 set in advance has a wireless tag ID 41 of “C”, a registered article name 42 of “article C”, and a detection setting 43 of “detection”. YES ”, the detection distance 44 is set to“ none ”, and the distance setting 45 is“ invalid ”(see FIG. 5).

  The mobile phone terminal 50 searches for the position of the article C52-3. Since the wireless tag 10-3 attached to the article C52-3 is within the communicable range 55, communication is possible. In this case, the wireless tag detection processing unit 35 stores the detection result in the detection result information 46 of the wireless tag management information 40 as “detected”. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name C of the registered article name through the control unit 22 of the mobile phone terminal 50.

  The wireless tag management information 40 of the wireless tag 10-4 attached to the article D52-4 set in advance has a wireless tag ID 41 of “D”, a registered article name 42 of “article D”, and a detection setting 43 of “detection”. Yes, ”the detection distance 44 is set to“ 3 m ”, and the distance setting 45 is“ valid ”(see FIG. 5).

  The mobile phone terminal 50 searches for the position of the article D52-4. Since the wireless tag 10-4 attached to the article D52-4 is within the communicable range 55, communication is possible. Further, since the wireless tag 10-4 is within the range of the detection distance 44 “3 m”, the distance detection processing unit 37 in this case, the measurement result of the distance between the mobile phone terminal 50 and the wireless tag 10-4 ( “1 m”) is stored in the detection result information 46 of the wireless tag management information 40. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name D of the registered article name through the control unit 22 of the mobile phone terminal 50.

  The wireless tag management information 40 of the wireless tag 10-5 attached to the article E52-5 set in advance has a wireless tag ID 41 of “E”, a registered article name 42 of “article E”, and a detection setting 43 of “detection”. Yes, ”the detection distance 44 is set to“ 3 m ”, and the distance setting 45 is“ valid ”(see FIG. 5).

  The mobile phone terminal 50 searches for the position of the article E52-5. Since the wireless tag 10-5 attached to the article E52-5 is within the communicable range 55, communication is possible and detection is possible. However, since the wireless tag 10-5 is outside the detection distance 44 “3 m” (range of the circumference 53), which is the detection range, in this case, the distance detection processing unit 37 displays the detection result as “detection”. “Out of range” is stored in the detection result information 46 of the RFID tag management information 40. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name E of the registered article name through the control unit 22 of the mobile phone terminal 50.

  The wireless tag management information 40 of the wireless tag 10-6 attached to the article F52-6 set in advance has a wireless tag ID 41 of “F”, a registered article name 42 of “article F”, and a detection setting 43 of “detection”. Yes, ”the detection distance 44 is set to“ 3 m ”, and the distance setting 45 is“ valid ”(see FIG. 5).

  The cellular phone terminal 50 searches for the position of the article F52-6. Since the wireless tag 10-6 attached to the article F52-6 is within the communicable range 55, communication is possible. Here, the distance between the mobile phone terminal 50 and the wireless tag 10-6 measured by the distance detector 36 is 2.5 m (see FIG. 7). Since the wireless tag 10-6 is within the detection distance 44 “3 m”, the distance detection processing unit 37 measures the distance between the mobile phone terminal 50 and the wireless tag 10-4 (2.5 m). Is stored in the detection result information 46 of the wireless tag management information 40. Further, the detection result processing unit 39 displays the detection result on the display unit 27 together with the article name F of the registered article name through the control unit 22 of the mobile phone terminal 50.

  FIG. 6 is a diagram showing an example of displaying a list of detection result information 46 on the display unit 27 of the mobile phone terminal 50. FIG. 6 shows the detection result of the wireless tag detection system 51 described above. In FIG. 6, the corresponding “wireless tag ID”, “article name”, and “detection result information” are displayed in a list for all articles 52 registered in the mobile phone terminal 50. However, an article (for example, article B (wallet)) whose detection setting 43 is set to “not detected” in the RFID tag management information 40 is determined to be unnecessary for the user himself / herself to detect the RFID tag management information. Since it is considered that it is set to 40, it is not necessary to display it in the list display. Also, the items to be displayed are not limited to the items described above, and for example, the wireless tag ID may not be displayed. Alternatively, the set detection distance may be displayed. Further, the user of the mobile phone terminal 50 may be able to select which item is displayed.

  Here, a specific example using the wireless tag detection system 51 is shown.

  FIG. 8 is a diagram showing a case where an object is searched using the mobile phone terminal 50 incorporating the wireless tag detection device 30. A user who wants to search for a book of the article F starts the wireless tag detection function of the mobile phone terminal 50 at the point A. Then, “F: book 2.5 m” is displayed on the display unit 27 of the mobile phone terminal 50, and the user knows that the book he / she wants to find is located at a distance of 2.5 m. Next, the user moves to the point B with the mobile phone terminal 50. Here, “present 1.0 m” is displayed on the display unit 27 of the mobile phone terminal 50. As a result, it can be seen that the user has approached the book of the object to be searched, and further, a circumference 56 with a radius of approximately 2.5 m centered on the point A and a circumference 57 with a radius of approximately 1.0 m centered on the point B. It can be seen that there are books to be searched for near the intersection (P point, Q point). Thus, the wireless tag detection system 51 is convenient when searching for things by measuring the distance from the wireless tag detection device by setting the distance. In this case, if the wireless tag detection device is built in the mobile phone terminal or the like, the wireless tag detection function can be easily used, and it is easy to carry and move, and it is more convenient. Have

  In addition, since the user can designate a detection range that the user wants to detect, the user can take the following usage forms. For example, at point A in FIG. Then, since this F is a distance of 2.5 m from the point A, “detected” is displayed. Next, when the user sets the detection range to 1 m and starts the wireless tag detection process at the same point A, since this F is out of the detection setting range, “out of detection distance” is displayed. In this way, it can be seen that the desired book F exists in the range between the circumference of the radius of 3 m and the circumference of the radius of 2 m around the point A without moving.

  In addition, by attaching a wireless tag to valuables or products in the room or store, the user starts the wireless tag detection function periodically at a predetermined time, If it is stolen by burglary or shoplifting, it can be found within a predetermined time. Also in this case, the user does not need to purchase a large-scale system by using the mobile phone terminal in which the wireless tag detection device is built. In addition, in a store or the like, a person in charge can be determined for each communicable range, and periodic RFID tag detection processing can be performed to easily manage merchandise such as shoplifting prevention.

  In summary, according to the mobile phone terminal including the wireless tag detection device according to the present embodiment, the wireless tag management information 40 includes the detection setting 43 for each wireless tag ID, the detection distance 44, the detection result information 46, and the like. Since information can be set, the user can make any setting when detecting the article 52 to which the wireless tag 10 is attached. For example, when the user detects the article 52, the user can specify the exact position of the article 52 by sequentially changing the detection distance from a long distance to a short distance. Further, by providing the wireless tag detection device 30 in the mobile phone terminal 50, it is possible to provide a portable wireless tag detection system that does not require a large-scale system when searching for the position of an article. .

  The operation (wireless tag detection method) of the wireless tag detection device 30 in the present embodiment will be described with reference to FIG. FIG. 9 is a flowchart illustrating the operation of the wireless tag detection method of the wireless tag detection device 30 according to the first embodiment.

<Management information setting process>
In the wireless tag detection device 30, wireless tag management information 40 for managing detection of wireless tags is stored in the memory 38 in advance. The management information setting unit 381 inputs the setting information about the wireless tag 10 input by the user from the operation unit 28 or the like, and sets it in each item of the wireless tag management information 40 in the memory 38 (S99).

<Wireless tag detection process>
The wireless tag detection device 30 starts the wireless tag detection operation when the wireless tag detection function of the wireless tag detection device 30 is turned on by the operation of the operation unit 28 of the mobile phone terminal 50 by the user. That is, the wireless tag detection device 30 starts wireless communication with the wireless tag 10 existing in the vicinity. The wireless tag detection unit 34 detects the wireless tag 10 present in the vicinity (S100).

<Wireless tag detection process>
The wireless tag detection processing unit 35 checks whether communication with the wireless tag 10 is possible (S110). The wireless tag detection processing unit 35 determines that the wireless tag 10 cannot be communicated when there is a wireless tag 10 that cannot communicate (cannot communicate) because it is out of the communication area, and wireless tag management information 40 in the memory 38. Is stored in the detection result information 46 corresponding to the wireless tag 10 (S120). In the case of the communicable radio tag 10 that has been communicable, the radio tag detection processing unit 35 determines that the radio tag is communicable and proceeds to the next step.

  The wireless tag detection processing unit 35 checks the detection setting 43 of the wireless tag management information 40 stored in the memory 38 of the wireless tag detection device 30 (S130).

  When the detection setting 43 is set to “not detected”, the wireless tag detection processing unit 35 does not perform the wireless tag detection process, and the detection result information corresponding to the wireless tag 10 in the wireless tag management information 40 of the memory 38. 46 stores “not detected” (S140).

  When the detection setting 43 is set to “detect”, the wireless tag detection processing unit 35 proceeds to the next step.

  The wireless tag detection processing unit 35 checks whether the distance setting 45 for setting whether to measure and display the distance between the wireless tag 10 and the wireless tag detection device 30 is valid or invalid (S150). ). When the distance setting 45 of the wireless tag management information 40 stored in the memory 38 of the wireless tag detection device 30 is set to “invalid”, the wireless tag detection processing unit 35 does not perform wireless tag distance measurement and performs detection processing. Only “detected” is stored in the detection result information 46 corresponding to the wireless tag 10 in the wireless tag management information 40 of the memory 38 (S160).

<Distance detection process>
When the distance setting 45 is set to be valid (S150), the distance detection unit 36 measures the distance between the wireless tag 10 and the mobile phone terminal 50 (S151).

<Distance detection process>
The distance detection processing unit 37 compares the distance measurement result detected by the distance detection unit 36 with the detection distance 44 of the wireless tag management information 40 stored in the memory 38 (S170). When the measurement result of the distance between the wireless tag and the mobile phone terminal 50 is larger than the detection distance 44 (outside the detection distance range), the distance detection processing unit 37 determines that the distance is outside the detection range and manages the wireless tag in the memory 38. The detection result information 46 corresponding to the wireless tag 10 in the information 40 is overwritten and stored as “out of detection range” (S180).

  When the distance measurement result between the wireless tag 10 and the mobile phone terminal 50 is smaller than the detection distance 44 (within the detection distance range), the distance detection processing unit 37 determines that the distance is within the detection range and manages the wireless tag in the memory 38. The distance measurement result (for example, “1 m”) is overwritten and stored in the detection result information 46 corresponding to the wireless tag ID of the information 40 (S190).

<Detection result processing step>
The detection result processing unit 39 displays the article name and the detection result information 46 on the display unit 27 of the mobile phone terminal 50 based on the detection result information 46 of the wireless tag management information 40 in the memory 38 (S191).

  As described above, according to the mobile phone terminal 50 including the wireless tag detection device 30 according to the present embodiment, the mobile phone terminal 50 includes the wireless tag detection device 30, and the wireless tag detection device 30 includes the distance detection unit 36. In the position search of the article 52 to which the wireless tag 10 is attached, the distance detection processing unit 37 is provided and the wireless tag management information 40 is provided in the memory 38 in the wireless tag detection device 30. Settings such as detection distance setting, distance setting validity / invalidity setting, and the like can be made, and the user can make any setting. That is, any setting can be made when the user detects an article to which the wireless tag 10 is attached. For example, when detecting an article, the detection distance 44 is sequentially changed from a long distance to a short distance. By doing so, it is possible to specify the exact position of the article, and there is an effect that convenience in searching for a search object is improved.

  Further, as described above, according to the mobile phone terminal 50 including the wireless tag detection device 30 according to the present embodiment, since the wireless tag detection device 30 is provided in the mobile phone terminal 50, the position of an article can be searched. There is an effect that it is possible to provide a portable RFID tag detection system that does not require a large-scale system to perform.

Embodiment 2. FIG.
In the first embodiment, the detection result processing of the detection result processing unit 39 is performed by the detection result processing unit 39 on the display unit 27 of the mobile phone terminal 50 based on the detection result information 46 of the wireless tag management information 40 in the memory 38. The detection result is displayed.

  However, in the second embodiment, the detection result processing unit 39 has the following functions to realize this embodiment.

  In the present embodiment, the detection result processing unit 39 performs detection result processing using the wireless tag detection processing unit 35, the distance detection processing unit 37, and the wireless tag management information 40 in the memory 38.

  The detection result processing will be described below with an example.

  When the distance setting 45 is “invalid” in the wireless tag management information 40 of the memory 38, the detection result processing unit 39 performs a process of detecting / not detecting the wireless tag 10. Here, the detection result processing unit 39 uses the wireless tag detection processing unit 35 and the wireless tag management information 40 in the memory 38. That is, the wireless tag detection processing unit 35 determines whether the wireless tag 10 is outside the communication range, is detected, or is not detected, and the determination result and the registered article name 42 associated with the wireless tag 10 are The information is displayed on the display unit 27 through the control unit 22 of the telephone terminal 50.

  When the distance setting 45 is “valid” in the wireless tag management information 40 of the memory 38, the detection result processing unit 39 performs a distance detection process for the wireless tag 10. Here, the detection result processing unit 39 uses the wireless tag detection processing unit 35, the distance detection processing unit 37, and the data in the memory 38. The distance detection processing unit 37 determines whether the distance measurement result between the wireless tag and the wireless tag detection device is outside the detection distance, and if the distance measurement result is within the detection distance, the distance measurement result is used. The registered article name 42 associated with the wireless tag ID 41 is displayed on the display unit 27 through the control unit 22 of the mobile phone terminal 50. The distance detection processing unit 37 sets the detection result outside the detection distance as “out of detection range” and displays the detection result and the registered article name 42 associated with the wireless tag 10 through the control unit 22 of the mobile phone terminal 50. 27.

  FIG. 10 is a flowchart illustrating the operation of the wireless tag detection method of the wireless tag detection device 30 according to the second embodiment. The basic operation is the same as FIG. 9 which is a flowchart of the wireless tag detection method according to the first embodiment. For this reason, portions that perform the same processing as in FIG. 9 are given the same reference numerals, description thereof is omitted, and different portions are described below.

  If the wireless tag detection processing unit 35 determines that the wireless tag cannot be communicated in the case of the wireless tag 10 that cannot communicate (cannot communicate), the detection result processing unit 39 displays the wireless tag on the display unit 27 of the mobile phone terminal 50. The article name corresponding to the wireless tag and “cannot communicate” are displayed (S220).

  When the detection setting 43 is set to “not detected”, the wireless tag detection processing unit 35 does not perform the detection processing of the wireless tag 10. Then, the detection result processing unit 39 displays the article name corresponding to the wireless tag 10 and “not detected” on the display unit 27 of the mobile phone terminal 50 (S240).

  When the distance setting 45 of the wireless tag management information 40 stored in the memory 38 of the wireless tag detection device 30 is set to “invalid”, the wireless tag detection processing unit 35 performs detection without measuring the distance of the wireless tag 10. Only process. Then, the detection result processing unit 39 displays the article name corresponding to the wireless tag 10 and “detected” on the display unit 27 of the mobile phone terminal 50 (S260).

  When the distance measurement result between the wireless tag and the mobile phone terminal is larger than the detection distance 44 (outside the detection distance range), the distance detection processing unit 37 determines that the distance is outside the detection range. Then, the detection result processing unit 39 displays the article name corresponding to the wireless tag and “out of detection range” on the display unit 27 of the mobile phone terminal 50 (S280).

  When the distance measurement result between the wireless tag detected by the distance detection unit and the mobile phone terminal is smaller than the detection distance 44 (within the detection distance range), the distance detection processing unit 37 determines that it is within the set range. The detection result processing unit 39 displays the article name corresponding to the wireless tag and “distance measurement result (for example, 1 m) on the display unit 27 of the mobile phone terminal 50 (S290).

  As described above, according to the present embodiment, the wireless tag detection device 30 stores the determination result (detection result information 46) regarding the wireless tag 10 and sequentially displays the determination result on the display unit 27 of the mobile phone terminal 50. It has become. This reduces the number of references to the memory 38 and increases the processing speed of the wireless tag detection process.

  In the above description of the first and second embodiments, the wireless tag detection processing unit 35, the distance detection processing unit 37, and the detection result processing unit 39 in the wireless tag detection device 30 are configured as independent functional blocks. A single functional block may be used. Alternatively, the wireless tag detection processing 35 and the distance detection processing unit 37 may be combined into one functional block, and the detection result processing unit 39 may be configured as one functional block. Alternatively, these functional blocks may be configured in any other combination.

  The wireless tag detection processing unit 35 and the distance detection processing unit 37 store the processing results in the detection result information 46 of the wireless tag management information 40, but the wireless tag management information 40 includes the wireless tag detection processing unit 35. And a field for individually storing the processing results of the distance detection processing unit 37 may be provided.

  In the first and second embodiments, the mobile phone terminal 50 including the wireless tag detection device 30 has been described as an example of the mobile terminal. However, the mobile phone terminal 50 does not need to have a telephone function and may be anything that can be carried. For example, it may be a portable information terminal such as PHS (registered trademark) (Personal Handyphone System) or PDA (Personal Digital Assistants). Alternatively, it may be a portable terminal such as an electronic notebook, a wristwatch, or a portable game machine.

It is a figure which shows an example of the hardware constitutions of the mobile telephone terminal 50 in embodiment. 1 is a diagram illustrating a basic configuration of a wireless tag 10 according to Embodiment 1. FIG. 1 is a diagram illustrating an example of a configuration of a mobile phone terminal 50 including a wireless tag detection device according to a first exemplary embodiment. 2 is a diagram illustrating an example of a block configuration of a wireless tag detection device 30 built in the mobile phone terminal 50 according to the first embodiment; FIG. 3 is a diagram illustrating an example of a configuration of wireless tag management information 40. FIG. It is the figure which showed an example which displays the detection result information 46 on the display part 27 of the mobile telephone terminal 50 as a list. It is a figure which shows the whole structure of the wireless tag detection system 51 provided with the mobile telephone terminal 50 carrying the wireless tag detection apparatus 30 in Embodiment 1. FIG. It is the figure which showed the case where it searches using the mobile telephone terminal 50 which incorporated the wireless tag detection apparatus 30. FIG. FIG. 3 is a flowchart showing the operation of the wireless tag detection method of the wireless tag detection device 30 according to the first exemplary embodiment. FIG. 10 is a flowchart illustrating an operation of a wireless tag detection method of the wireless tag detection device 30 according to the second exemplary embodiment.

Explanation of symbols

  10 wireless tag, 11 wireless tag antenna, 12 RF circuit, 13 logic circuit, 14 nonvolatile memory, 15 wireless communication IC, 20 antenna, 21 RF transmission / reception unit, 22 control unit, 23 memory, 24 clock function unit, 25 speaker, 26 microphone, 27 display unit, 28 operation unit, 29 external interface, 30 wireless tag detection device, 31 detection antenna, 32 detection RF transmission / reception unit, 33 detection RF transmission / reception control unit, 34 wireless tag detection unit, 35 wireless tag detection processing unit 36 distance detection unit 37 distance detection processing unit 38 memory 39 detection result processing unit 40 wireless tag management information 41 wireless tag ID 42 registered article name 43 detection setting 44 detection distance 45 distance setting 46 Detection result information, 47 various information, 50 mobile phone terminals, 51 RFID tag detection Stem, 381 management information setting unit, 901 LCD display, 902 K / B, 911 CPU, 912 Bus, 913 ROM, 914 RAM, 915 communication board, 916 flash memory.

Claims (6)

On mobile devices,
A wireless tag detection device that detects wireless tags existing in the vicinity by wireless communication, stores detection result information of the detected wireless tags in a memory, and outputs the same;
A display unit for displaying detection result information output by the wireless tag detection device on a display device;
The wireless tag detection device is
The wireless tag management information for managing the detection of the wireless tag is stored in the memory in advance,
A distance detector for detecting the distance from the wireless tag;
And a distance detection processing unit that generates detection result information based on a distance from the wireless tag detected by the distance detection unit and stores the detection result information in the memory in accordance with the wireless tag management information stored in the memory in advance. Terminal. The wireless tag detection device further includes:
A wireless tag detector for detecting a wireless tag;
A wireless tag detection processing unit that generates detection result information of the wireless tag detected by the wireless tag detection unit according to the wireless tag management information stored in the memory in advance, and stores the detection result information in the memory;
The mobile terminal according to claim 1, further comprising: a detection result processing unit configured to display the detection result information stored in the memory by the wireless tag detection processing unit on a display device. The wireless tag detection device is
2. The portable terminal according to claim 1, further comprising a management information setting unit that inputs the wireless tag management information and sets the information in a memory. In the wireless tag detection device that detects wireless tags existing in the vicinity by wireless communication,
The wireless tag management information for managing the detection of the wireless tag is stored in the memory in advance,
A management information setting unit for inputting the wireless tag management information and setting it in the memory;
A wireless tag detector for detecting a wireless tag;
A wireless tag detection processing unit that generates detection result information of the wireless tag detected by the wireless tag detection unit according to the wireless tag management information stored in the memory in advance, and stores the detection result information in the memory;
A distance detection unit for detecting the distance between the wireless tag detection device and the wireless tag;
A distance detection processing unit that generates detection result information based on the distance between the wireless tag detection device detected by the distance detection unit and the wireless tag according to the wireless tag management information stored in the memory in advance, and stores the detection result information in the memory;
A wireless tag detection device comprising: a detection result processing unit that displays detection result information stored in a memory on a display device. The wireless tag detection method of the wireless tag detection device is:
A management information setting step for storing in advance a wireless tag management information for managing the detection of the wireless tag in a memory;
A wireless tag detection step in which the wireless tag detection unit detects the wireless tag;
A wireless tag detection processing step, wherein the wireless tag detection processing unit generates detection result information of the wireless tag detected by the wireless tag detection unit according to the wireless tag management information stored in the memory in advance, and stores the detection result information in the memory;
A wireless tag detection method, comprising: a detection result processing step, wherein the detection result processing unit displays detection result information stored in a memory by the wireless tag detection processing unit on a display device. The wireless tag detection method further includes:
A distance detection step in which the distance detection unit detects a distance from the wireless tag;
The distance detection processing unit includes a distance detection processing step of generating detection result information based on a distance from the wireless tag detected by the distance detection unit according to the wireless tag management information stored in advance in the memory and storing the detection result information in the memory. The wireless tag detection method according to claim 5.

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