JP6260450B2 - Function assignment method, function assignment program, and terminal device - Google Patents

Description

  The present invention relates to a function assignment method, a function assignment program, and a terminal device.

  In inspection work or the like, it is necessary to record the state at the time of inspection for each of a large number of inspection items. For example, when inputting the status to the terminal device owned by the worker at the time of inspection, it is necessary to first select the target inspection item, but the trouble of searching for the corresponding item from a preset long list etc. It requires a large amount of knowledge and experience.

  Accordingly, a Near Field Communication (NFC) tag or the like in which ID information is embedded in the inspection object or its vicinity is attached, and the inspection object assigned in association with the ID information read from the tag is identified. By using the ID information from the tag, it is possible to cause the terminal device to execute functions such as a transition to the input mode in a state corresponding to each inspection object and guidance of caution points.

JP 2012-194149 A JP 2010-66149 A

  However, when many tags (reference objects) are arranged at a work site, it is necessary to manually record IDs corresponding to the tags and to set functions corresponding to the respective IDs. Further, since the ID is a symbol string that is meaningless to a person, an ID recording error or a function matching error is likely to occur. For this reason, a method in which the person does not directly handle the ID is necessary.

  In addition, a method is conceivable in which a function list is prepared in advance, one tag is read by a reader in the field, and a corresponding function is selected from the list and assigned. However, in the case where the above-described method is performed by a person who is not familiar with the function, a detailed instruction is required, and a matching error is likely to occur. On the other hand, when dispatching an engineer who knows the function well and making it correspond, costs, such as personnel expenses, become a problem.

  In one aspect, an object of the present invention is to make the association between a reference object and a function efficient.

  In one aspect, the terminal device stores, in a storage unit, the positions of a plurality of reference objects to be installed with respect to the object, and the functions associated with the respective positions, and the terminal device performs a series of movements as described above. The identification information is read from a plurality of reference objects installed on the object, and stored in the storage unit based on the moving direction between the reference objects obtained at the time of reading the identification information and the time information when the identification information is read. The position of the reference object is specified by narrowing down the permutation of the position of the reference object thus specified, and the function associated with the specified position of the reference object is assigned to the identification information.

  As one aspect, the association between the reference object and the function can be made efficient.

It is a figure which shows an example of a function structure of a terminal device. It is a figure which shows an example of the hardware constitutions of a terminal device. It is a flowchart which shows an example of a function allocation process. It is a figure which shows an example of the input information at the time of design. It is a figure which shows an example of the information obtained at the time of reading. It is a figure for demonstrating allocation of the function using the input information at the time of design, and the measurement information at the time of tag reading. It is a figure which shows an example of the data obtained at the time of reading of a tag. It is a figure which shows the example of a determination of the positive / negative direction of a moving direction. It is a figure which shows the example of evaluation calculation with respect to the movement candidate between tags. It is a figure which shows an example of the determination procedure of tag reading order. It is a figure for demonstrating the method of narrowing down the candidate of a tag reading order previously from all the motion information. It is a figure for demonstrating the example of a response | compatibility when linear movement cannot be performed between tags. It is a figure which shows an example of the acceleration norm of a linear track and a curved track. It is a figure (the 1) which shows a function allocation system structural example. It is a figure (the 2) which shows a function allocation system structural example. FIG. 10 is a third diagram illustrating an exemplary function allocation system configuration;

  Embodiments will be described below with reference to the drawings.

<Example of schematic configuration of terminal device>
FIG. 1 is a diagram illustrating an example of a functional configuration of the terminal device. A terminal device 10 illustrated in FIG. 1 includes a tag reader 11 as an example of a reading unit, a tag ID acquisition unit 12 as an example of an identification information acquisition unit, an inertial sensor 13, a motion information extraction unit 14, and a design data acquisition unit. 15, a tag arrangement correspondence setting unit 16 as an example of a function assignment unit, a tag arrangement correspondence storage unit 17, and a storage unit 18. The storage unit 18 includes function assigned tag arrangement design data 21 and function assigned tag arrangement correspondence data 22.

  The tag reader 11 reads information from each inspection object and a reference object such as a wireless tag installed in the vicinity thereof in, for example, inspection work performed at the site or the like. The wireless tag realizes non-contact data communication such as an NFC tag, a radio frequency identification (RFID) tag, and an integrated circuit (IC) tag, but is not limited thereto.

  The tag reader 11 radiates, for example, a radio wave that can generate a small amount of power to the wireless tag, and receives a radio wave having identification information transmitted by the wireless tag with the power obtained from the radio wave. Note that the tag reader 11 may have a writing function. In that case, data can be written from the tag reader 11 to the wireless tag.

  Note that the reference object described above is not limited to the wireless tag. For example, an image in which a predetermined pattern or a pattern such as a character is formed in a predetermined area, such as a one-dimensional or two-dimensional barcode or a marker, It may be an object. In this case, the tag reader 11 captures the periphery with an imaging unit such as a camera, recognizes a reference object (for example, a barcode or a marker) included in the captured image or video, and information corresponding to the reference object. (For example, identification information) is acquired. In the following description, an example using a tag as an example of a reference object will be described.

  The tag ID acquisition unit 12 acquires an ID (for example, tag ID) corresponding to the identification information read from the wireless tag or the like by the tag reader 11.

  The inertial sensor 13 is a sensor that detects the movement of the terminal device 10. The inertial sensor 13 can measure the moving speed, acceleration, angular velocity, and the like of the terminal device 10. Moreover, the inertial sensor 13 may measure an azimuth | direction, an attitude | position, etc. The inertial sensor 13 is, for example, a three-axis gyro sensor or a three-axis acceleration sensor, but is not limited thereto. In addition, the inertial sensor 13 may be provided with a plurality of sensors instead of only one.

  The motion information extraction unit 14 extracts motion information based on information obtained from the inertial sensor 13. For example, as the motion information that can be extracted from the inertial sensor 13, the motion information extraction unit 14 uses, for example, a relative position change obtained by double integration of acceleration, or extracts a direction in which the variance is large by principal component analysis of acceleration. The moving direction and the like obtained by doing so are extracted.

  That is, in the present embodiment, the movement direction calculated by processing the acceleration information obtained from the inertial sensor 13 is used as the movement information of the tag reader 11. As the moving direction, for example, a position change calculated based on acceleration information obtained from the inertial sensor 13 can be used, but the moving direction is not limited to this.

  Moreover, the motion information extraction part 14 may estimate the attitude | position of the terminal device 10 by combining the acceleration sensor and gyro sensor in the inertial sensor 13, for example. In this case, the motion information extraction unit 14 needs to perform in advance, for example, the removal of the gravitational acceleration component and the conversion between the coordinate system used for inputting the tag arrangement and the sensor coordinate system.

  The design data acquisition unit 15 acquires function-allocated tag arrangement design data 21 (hereinafter referred to as “design data” as necessary) from the storage unit 18. The design data acquisition unit 15 can set or change design data, and can store the design data that has been set or changed in the storage unit 18. The design data acquisition unit 15 outputs the design data acquired from the storage unit 18 to the tag arrangement correspondence setting unit 16.

  Here, the function-allocated layout design data 21 is, for example, a tag to be installed on an image obtained by photographing an environment including an object (for example, various instruments such as a measurement meter) on which a user or the like is installed in advance. Although it has identification information (position ID), a position coordinate, a function, etc. which identify the position of a tag when a position is designated, it is not limited to this. The position coordinates may be a two-dimensional coordinate system (x, y) based on an image or a three-dimensional coordinate system (x, y, z) in real space. The function is a service provided to the user. For example, related information (guidance information) such as an operation method of the object assigned to the tag ID or precautions is displayed on the screen of the terminal device 10 or a voice message. Etc. are output. Further, the function is, for example, various services such as transition to a screen for inputting information on an object (for example, a measurement result acquired from a meter) or the like, but is not limited thereto. These pieces of information are stored in the function-assigned tag arrangement design data 21 as design data (designed input information).

  The tag arrangement correspondence setting unit 16 includes a plurality of tag IDs acquired from the tag ID acquisition unit 12 and the movement information of the terminal device 10 obtained from the movement information extraction unit 14 based on the timing at which the plurality of tag IDs are acquired, The tag arrangement correspondence is calculated based on the design data obtained by the design data acquisition unit 15.

  For example, the tag arrangement correspondence setting unit 16 specifies the position of the tag ID by narrowing down the permutation of the position of the tag ID based on the time relationship between the moving direction measured by the terminal device 10 and the read tag ID. For example, when a user (worker) or the like reads actual tags in an appropriate order at an actual site by a tag reader 11 provided in the terminal device 10 or the like, a sequence of tag IDs is obtained in the order of reading. In addition, since movement information indicating how the terminal device 10 moved when moving between the tags is obtained, the tag of which tag ID is identified by comparing the movement information with the design data described above. Whether the position corresponds to the position is evaluated, and an appropriate position ID and tag D are associated with each other. Further, since a function has been assigned to the position ID, it is possible to assign a function to the tag ID as a result.

  The tag arrangement correspondence setting unit 16 can evaluate the tag positional relationship described above using an angle calculated from the tag position candidate and the moving direction, but is not limited thereto. .

  The tag arrangement correspondence storage unit 17 stores the tag arrangement correspondence obtained by the tag arrangement correspondence setting unit 16 in the function assigned tag arrangement correspondence data 22. In the function-allocated tag arrangement correspondence data 22, for example, a position ID and a tag ID are associated with each other, but the present invention is not limited to this.

  The terminal device 10 is, for example, a smartphone or a tablet terminal, but is not limited to this, and a game device, a notebook personal computer (PC), or the like may be used.

  With the configuration of the terminal device 10 described above, it is possible to increase the efficiency of association (linking) between tags and functions. For example, in the present embodiment, the arrangement information of a plurality of tags associated with information related to the function, the movement information based on the time of the tag reader 11 when reading the tag actually attached to the object, and the detection information of the tag ID And the correspondence between the tag ID and the input arrangement information can be specified, and the function can be efficiently assigned to the tag.

<Example of Hardware Configuration of Terminal Device 10>
Next, a hardware configuration example of the terminal device 10 will be described with reference to the drawings. FIG. 2 is a diagram illustrating an example of a hardware configuration of the terminal device. In the example of FIG. 2, the terminal device 10 includes a microphone (hereinafter referred to as “microphone”) 31, a speaker 32, a display unit 33, an operation unit 34, a sensor unit 35, a power unit 36, and a radio unit 37. A short-range communication unit 38, an auxiliary storage device 39, a main storage device 40, a CPU 41, and a drive device 42, which are connected to each other by a system bus B.

  The microphone 31 inputs a voice uttered by the user and other sounds. The speaker 32 outputs a voice message corresponding to the tag ID, outputs the voice of the call partner, and outputs a sound such as a ring tone. The microphone 31 and the speaker 32 can be used, for example, when talking to a call partner using a call function or the like, but is not limited to this, and can be used for inputting and outputting information by voice.

  The display unit 33 displays a screen set by an operating system (OS) or various applications to the user. For example, the display unit 33 displays a screen (for example, a message screen or an input screen) related to a function corresponding to the tag ID. The display unit 33 can display an application execution result, content, icon, cursor, and the like on the screen.

  The display unit 33 may be a touch panel display or the like. In that case, the display unit 33 has a function as an input / output unit. The display unit 33 is a display such as a Liquid Crystal Display (LCD) or an organic Electro Luminescence (EL).

  The operation unit 34 is an operation button displayed on the screen of the display unit 33, an operation button provided outside the terminal device 10, or the like. The operation button may be, for example, a power button or a volume adjustment button, or may be an operation key for character input arranged in a predetermined order. For example, when the user performs a predetermined operation on the screen of the display unit 33 or presses the operation button described above, the touch position on the screen is detected by the display unit 33.

  The sensor unit 35 detects a certain point in time or continuous movement of the terminal device 10. The sensor unit 35 corresponds to an example of the inertial sensor 13 described above, for example. The sensor unit 35 detects, for example, the tilt angle, acceleration, direction, position, etc. of the terminal device 10, but is not limited to this. The sensor unit 35 is, for example, an acceleration sensor, a gyro sensor, or the like, but is not limited thereto, and may be, for example, a Global Positioning System (GPS), a posture (tilt) sensor, or the like.

  The power unit 36 supplies power to each component of the terminal device 10. The power unit 36 is an internal power source such as a battery, but is not limited thereto. The power unit 36 can also detect the amount of power at all times or at predetermined time intervals and monitor the remaining amount of power.

  The radio unit 37 is a communication data transmission / reception unit that receives a radio signal (communication data) from a base station using, for example, an antenna or transmits a radio signal to the base station via an antenna. The wireless unit 37 can exchange data with a server or the like from a base station or the like via a communication network.

  The short-range communication unit 38 communicates with, for example, a wireless tag installed on an object or the like, and acquires information such as a tag ID. Further, the short-range communication unit 38 may perform short-range communication with a computer such as another terminal device 10 using a communication method such as infrared communication, Wi-Fi (registered trademark), or Bluetooth (registered trademark). Good. The wireless unit 37 and the short-range communication unit 38 described above are communication interfaces that enable transmission and reception of data with other computers.

  The auxiliary storage device 39 is a storage means such as a hard disk drive (HDD) or a solid state drive (SSD). The auxiliary storage device 39 stores various programs and the like and inputs / outputs data as necessary.

  The main storage device 40 stores an execution program read from the auxiliary storage device 39 in response to an instruction from the CPU 41, and stores various information obtained during the program execution. The main storage device 40 is, for example, a read only memory (ROM) or a random access memory (RAM), but is not limited thereto.

  The CPU 41 controls processing of the entire computer, such as various operations and data input / output with each hardware component, based on a control program such as an OS and an execution program stored in the main storage device 40, for example. Thus, each process in the display control is realized.

  Specifically, the CPU 41 executes a program corresponding to the program on the main storage device 40 by causing the program installed in the auxiliary storage device 39 to be executed based on, for example, a program execution instruction obtained from the operation unit 34 or the like. I do. For example, the CPU 41 executes the function assignment program, thereby acquiring the ID of the wireless tag by the tag ID acquisition unit 12, acquiring the motion information of the terminal device 10 by the motion information extraction unit 14, and designing at the time of design by the design data acquisition unit 15. Processing such as acquisition of input information is performed. Further, the CPU 41 executes a function assignment program to perform processing such as assignment of correspondence between the position ID and tag ID by the tag placement correspondence setting unit 16 and storage of correspondence by the tag placement correspondence storage unit 17. Do. The processing content in the CPU 41 is not limited to the above-described content. The contents executed by the CPU 41 are stored in the auxiliary storage device 39 or the like as necessary.

  The drive device 42 can detachably set the recording medium 43, for example, and can read various information recorded on the set recording medium 43 or write predetermined information on the recording medium 43. The drive device 42 is, for example, a medium loading slot or the like, but is not limited thereto.

  The recording medium 43 is a computer-readable recording medium that stores an execution program and the like as described above. The recording medium 43 may be a semiconductor memory such as a flash memory, for example. The recording medium 43 may be a portable recording medium such as a Universal Serial Bus (USB) memory, but is not limited thereto.

  In the present embodiment, by installing an execution program (for example, a function allocation program) in the hardware configuration of the computer main body described above, the hardware resource and the software cooperate to perform the function allocation process in the present embodiment. Can be realized.

  Further, the function assignment program corresponding to the function assignment process described above may be resident on the apparatus, for example, or may be activated by an activation instruction.

<Example of function assignment processing>
Next, an example of function assignment processing will be described. FIG. 3 is a flowchart illustrating an example of the function assignment process. In the example of FIG. 3, in the function assignment process, tag placement information is first input (S01). In the process of S01, when an arbitrary coordinate system (for example, a coordinate system in which the lower left corner of the panel is the origin and the horizontal direction of the panel is the x axis and the vertical direction is the y axis) is installed, Set the position coordinates. In the process of S01, a position ID for identifying wireless tags installed at different positions is set, and the position coordinates are stored as design data.

  Next, the tag reader 11 of the terminal device 10 reads the information of the tag actually attached to the object or the vicinity of the object, the ID information (identification information) included in the read tag information, and the inertial sensor 13 of the terminal device 10. The motion information measured by the above is acquired (S02). In the process of S02, for example, an operator or the like holds the terminal device 10 incorporating the tag reader 11 and the inertial sensor 13, and reads a plurality of tags installed on the target object in an appropriate order. The ID string of the tag and the movement information string when moving between the tags are acquired. The reading operation is performed by a series of moving operations using the terminal device 10, but is not limited to this.

  Here, the motion information of the terminal device 10 is obtained by estimating the moving direction vector of the terminal device 10 from the acceleration. In this case, processing is performed by classifying acceleration information until the next tag is read, starting immediately after reading the tag. In addition, when reading tags, the tags are moved as linearly as possible.

  In the process of S02, high frequency noise may be removed by a low pass filter. Further, in the process of S02, the direction in which the acceleration dispersion is large can be regarded as the direction in which the terminal apparatus 10 is moved, so that the principal axis is extracted by the principal component analysis of the three-axis acceleration or moved at the first peak of acceleration on the principal axis. Processing such as determining the positive / negative direction of the image may be performed. If the same ID information continues, there is a high possibility that the ID information is duplicated due to the movement of the reading operation, so the duplicate ID information and the motion information between them are not stored and ignored.

  Next, the tag arrangement correspondence setting unit 16 of the terminal device 10 extracts the first ID information from the tag ID string obtained from the tag ID acquisition unit 12 in order to narrow down the permutation of tag positions (S03). The extracted first ID information corresponds to any one of all the position IDs included in the design data, and the probability is evenly present. Therefore, the tag arrangement correspondence setting unit 16 initializes a tree representing tag reading order candidates with the evaluation value of each position ID (each node) being 1 (S04).

  Next, the tag arrangement correspondence setting unit 16 extracts the ID information and the motion information of the motion information sequence from the next of the read tag ID sequence one by one, and each node (position ID reading order candidate) The evaluation value is calculated. The ID information can be used to limit the child node that makes a transition by comparing with the ID that has already been taken out. For example, possible permutations can be limited.

  Next, it is determined whether there is the next ID information from the tag ID string (S05). If there is the next ID information (YES in S05), the tag arrangement correspondence setting unit 16 determines whether the next ID information is present. Information is extracted, child nodes of the end node are created so as to exclude conflicting candidates, and the tree is expanded (S06).

  Next, the tag arrangement correspondence setting unit 16 extracts one piece of motion information from the motion information sequence, and calculates the evaluation value of the terminal node (S07). The motion information in this embodiment is used for calculating the evaluation value of each node. For example, the tag arrangement correspondence setting unit 16 multiplies the evaluation value of the parent node by the evaluation value calculated from the motion information to obtain the evaluation value of the child node.

  Here, the motion information is represented by a direction vector. Therefore, when the angle difference between this direction vector and the vector connecting the position of the parent node and the child node is small, the tag arrangement correspondence setting unit 16 determines the movement between the tags and the positional relationship of the tags. Highly rated for consistency.

  In addition, the tag arrangement correspondence setting unit 16 calculates the evaluation value for the angle difference using a simple function that takes a maximum value when the angle difference is 0 °, for example, and linearly decreases as the angle difference increases. To do. Note that, instead of setting the function as described above in advance, a method of statistically setting an evaluation value for the angle difference in advance is also conceivable. In that case, using the histogram of the angle difference between the actual direction when the terminal device 10 is moved in various directions and the measured direction, etc., the probability of the angle difference as a measurement error is obtained, and the result is It may be an evaluation value.

  Further, in the process of S05, when there is no next ID information in the tag ID column (NO in S05), the tag reading order represented by the terminal node having the highest evaluation value is determined (S08), and the tag ID A function is assigned to the tag ID based on the correspondence between the position ID and the position ID (S09). Next, information on correspondence data of the assigned tag arrangement is stored in the function assigned tag arrangement correspondence data 22 of the storage unit 18 (S19).

<Specific example>
Next, a specific method for assigning the tag and the function will be described. In this embodiment, at the time of design, a function is assigned to a position ID corresponding to the position where each tag is installed, and the positional relationship between the tag ID and the position ID obtained from a plurality of actually read tags is specified. Assign a function to the tag ID.

<At the time of design>
At the time of the above-described design, for example, an engineer or the like takes an image of the field environment with an imaging means such as a camera, and arranges a position where a tag is arranged from the taken image (photograph) and the like, and a function assigned according to the position. Set. At the time of designing, design data having an approximate position (position coordinates) of the tag to be installed and a function to be assigned is created. At this stage, since the ID (real ID) of the wireless tag actually attached at the site is not known, identification information (position ID) is set in the tag position coordinates.

  Here, FIG. 4 is a diagram illustrating an example of input information at the time of design. In the example of FIG. 4, tags 51 to 54 are set for an image obtained by photographing an object 50 (for example, each measurement meter, an inspection panel, etc.) to be inspected. Information such as “position ID”, “position”, and “function” is set in each of the tags 51 to 54. In the example of FIG. 4, as the “function”, a “pressure input function” that displays a screen for inputting pressure on the terminal device 10, a “water amount input function” that displays a screen for inputting water volume, and a water temperature state are input. “Water temperature state input function” for displaying a screen, “drainage state input function” for displaying a screen for inputting a drainage state, and the like are set. Each of these functions is set to a function corresponding to an instrument (for example, a pressure gauge 55, a water meter 56, a water temperature state output unit 57, a drainage state output unit 58) installed in each of the wireless tags 51 to 54. The The water temperature state output unit 57 and the drainage state output unit 58 indicate whether or not each state is normal or abnormal based on a preset standard by using a predetermined lamp (for example, Light Emitting Diode (LED)). Or by voice. The function is not limited to this, and the number and type of tags are not limited to this.

  In the example of FIG. 4, an approximate placement and function of the tag may be set using an on-site image (photo) or the like, and the object corresponding to the environment designed by the Computer Aided Design (CAD) software or the like may be set. You may set using drawing. As for the tag position information, since the relative positional relationship between the tags is used, the coordinate system may be either a two-dimensional coordinate system or a three-dimensional coordinate system and can be freely determined. These pieces of information are stored in the storage unit 18 as the function assigned tag arrangement design data 21.

  Next, when reading a plurality of wireless tags actually attached, an operator reads the plurality of wireless tags in an appropriate order using the terminal device 10 at an actual site. FIG. 5 is a diagram illustrating an example of information obtained at the time of reading.

  In the terminal device 10, wireless tags 61 to 64 are actually attached to an object 50 as shown in FIG. 4 existing in a real space (working environment). Note that the wireless tags 61 to 64 may be attached to the object 50 by using an adhesive substance or by using a fixing member such as a screw, but is not limited thereto.

  Identification information (tag ID) for identifying each wireless tag is stored in the wireless tags 61 to 64, and the tag reader 11 in the terminal device 10 acquires the tag ID from each wireless tag 61 to 64.

  The terminal device 10 acquires the tag IDs of the wireless tags 61 to 64 for the object 50 in the order shown in FIGS. In this embodiment, a sequence (tag ID string) of tag IDs (actual IDs) of the wireless tags 61 to 64 is obtained in the order of reading, and the motion of the terminal device 10 at that time is measured by the inertial sensor 13. Thus, it is possible to obtain information on how the terminal device 10 has moved when moving between the tags.

  For example, in FIG. 5A to FIG. 5B, from the acquisition of tag information (tag ID: 0002) from the wireless tag 63 to the acquisition of tag information (tag ID: 0005) of the wireless tag 64. V1 can be acquired as the motion information. Thus, in the movement of the terminal device 10 until each tag information is acquired, the motion information when the next tag information is acquired can be acquired.

  In the example of FIG. 5, the tag information (tag ID: 0002) acquired for the first time shown in FIG. 5 (A) and the tag information (tag ID: 0002) acquired for the fourth time shown in FIG. 5 (D). Are the same, and the others are permutation constraints such as reading different tags each time. By comparing these information and the input information at the time of design described above, it is evaluated which tag ID is likely to correspond to which position ID, and based on the evaluation result, the position ID and the tag ID Can be set.

  Further, since the function has been assigned to the position ID, the function can be assigned to the tag ID as a result.

  FIG. 6 is a diagram for explaining function assignment using input information at the time of design and measurement information at the time of tag reading. In this embodiment, as shown in FIG. 6, in the input information at the time of design, as shown in FIG. 4 described above, position information and function are assigned to each position ID: p1 to p4 as design data. ing. Further, as shown in FIG. 5, the tag ID string (“0002” → “0005” → “0003” → “0002” ⇒ ”is obtained from the measurement information when the wireless tags 61 to 64 are actually read by the terminal device 10. 0007 ") and a motion information sequence (v1⇒v2⇒v3⇒v4).

  Therefore, by automatically calculating the correspondence relationship of the moving direction based on time from the position information of the tag at the time of design and the measurement information at the time of reading the tag, the user operating the terminal device 10 only reads the tag, Functions can be assigned to the tag. The assigned information is stored in the storage unit 18 as function assigned tag arrangement correspondence data 22.

  According to the present embodiment, since it is not necessary to determine the order of reading tags, there is little burden on the user and mistakes, and there is no part for humans to judge in association with functions, so that human errors do not occur. In the above-described embodiment, the inertial sensor 13 is used for measuring the movement of the terminal device 10 including the tag reader 11 at the time of tag reading. However, the present invention is not limited to this. A method of tracking the position of the terminal device 10 directly with a device such as a laser tracker or a camera that has been used may be used. These devices are relatively expensive and costly to install in the environment. On the other hand, the inertial sensor 13 is relatively inexpensive, but it cannot accurately determine the change in position. Therefore, in the present embodiment, rather than directly measuring the position, a plausible correspondence is determined from the approximate arrangement of the tags input at the time of design and the approximate movement information of the tag reader 11 obtained from the inertial sensor 13.

  As a result, in the present embodiment, the function design phase to be assigned to the environment can be separated from the association phase, so that the function assignment is possible without dispatching an engineer who knows the function in detail to the site. Low cost. For example, maintainability is good because it can be handled only by workers at the site when replacing tags.

  For example, when a plurality of inspection panels having the same tag arrangement are created, mass production is possible by simply operating the terminal device 10 by using design data. Further, in the motion information, the relative position change obtained by the double integration of the acceleration often has a large error, and it is easy to make a mistake. On the other hand, the moving direction obtained by the principal component analysis of acceleration can be obtained with a relatively small error because processing such as integration is not performed.

  When evaluating the correspondence from the moving direction, it can be evaluated regardless of the scale of the tag placement input information, so when looking at the site image etc. and entering the tag placement, the positional relationship without worrying about the scale Can be entered to match only.

<Data example>
Next, an example of data applied in the present embodiment will be described with reference to the drawings. FIG. 7 is a diagram illustrating an example of data obtained when a tag is read. The data example shown in FIG. 7 includes items such as “tag detection time (seconds)”, “tag ID (character string)”, “movement direction (direction vector)”, but is not limited thereto.

  “Tag detection time” is the relative time until each tag is detected based on the time when the first wireless tag is detected among a plurality of wireless tags (for example, NFC tags) actually installed on the object. Shows time. The “tag ID” is identification information of a tag detected at that time. The time and tag ID are information obtained by the tag ID acquisition unit 12.

  “Moving direction” is the moving direction of the terminal device 10 and indicates a vector value of the moving directions of the three axes (X, Y, Z) when moving to the next wireless tag. “Movement direction” is information obtained by the motion information extraction unit 14. The tag placement correspondence setting unit 16 sets the correspondence of tag placement using data obtained in time series as shown in FIG. 7 and the function assignment tag placement design data 21 stored in the storage unit 18. .

<Determination of positive / negative direction of movement>
Here, since the moving direction (direction vector) described above has positive and negative directions, it is necessary to determine the positive and negative directions. FIG. 8 is a diagram illustrating a determination example of the positive / negative direction of the moving direction. In the example of FIG. 8, the acceleration changes when the vertical axis is acceleration (m / s ² ) and the horizontal axis is time (s). FIG. 8 shows a change in acceleration on the main axis for detecting the next wireless tag after the wireless tag attached to the object or the vicinity of the object is detected.

  In the present embodiment, for example, the positive or negative direction of movement is determined based on whether the first peak is the positive or negative of the acceleration among the accelerations on the main axis obtained by the principal component analysis of the three-axis acceleration. For example, in the example of FIG. 8, since the acceleration value of the first peak is negative, it can be determined that the movement is in the negative direction on the main axis. The motion information extraction unit 14 performs the above-described determination, and extracts a moving direction in which a positive / negative sign is added to each axis as illustrated in FIG. 7 described above.

<S07: Evaluation calculation example>
Next, a specific example of the evaluation calculation process in S07 in the function assignment process shown in FIG. 3 will be described with reference to the drawings. FIG. 9 is a diagram illustrating an example of evaluation calculation for a movement candidate between tags. In the example of FIG. 9, the evaluation value is calculated from the difference between the measured movement direction of the terminal device 10 and the terminal movement direction obtained from the tag arrangement.

For example, as shown in FIG. 9A, three tags (position IDs: p1 to p3) are set as design data, and the respective tag positions (position coordinates) are set as X _{1 to} X ₃ . And Further, it is assumed that the moving direction of the terminal device 10 is v based on data measured using the inertial sensor 13 or the like. At this time, for example, with the tag having the position ID p1 as a reference (parent node), it is determined by evaluation calculation whether the next node (child node) is the tag having the position ID p2 or the tag p3.

For example, if the evaluation value E = f (θ) (f is an example of a function for obtaining the evaluation value from the angle difference), the evaluation value E ₁₂ moved from the tag with the position ID p1 to the tag with the p2 is
E ₁₂ = f (θ ₁₂ )
θ ₁₂ = acos ((X ₂ −X ₁ ) · v / || X ₂ −X ₁ || · || v ||)
Can be obtained as The evaluation value _{E 13} position ID is moved from the tag of p1 to tag and p3,
E ₁₃ = f (θ ₁₃ )
θ ₁₃ = acos ((X ₃ −X ₁ ) · v / || X ₃ −X ₁ || · || v ||)
Can be obtained as Note that the above formula is an example, and the present embodiment is not limited to this.

If the values of the angle differences θ ₁₂ and θ ₁₃ described above are associated with an evaluation value function as shown in FIG. 9B, for example, the evaluation value of θ ₁₂ is higher than that of θ ₁₃ , and therefore the position ID is It can be determined that the position has moved from the position p1 to the position p3.

In this embodiment, when there are further child nodes, the evaluation value of the child code is multiplied by the evaluation value of the parent. For example, if the tag position candidates read up to the third time are in the order of p1⇒p2⇒p3, the node evaluation value E (p1⇒p2⇒p3) is the parent node evaluation value E up to the second time. (P1⇒p2) can be multiplied by the evaluation value for p3, and for example, E (p1⇒p2⇒p3) = E (p1⇒p2) * f (θ ₂₃ ) can be calculated. Also, assuming that the motion information v ₂ of the terminal device 10 at this time is θ ₂₃ , θ ₂₃ = acos ((X ₃ −X ₂ ) · v ₂ / || X ₃ −X ₂ | | ・ || v ₂ ||)
Can be calculated as

  Using such calculation, motion information is extracted one by one, and a final evaluation value up to the end node is calculated. Therefore, the evaluation value calculation of each node (tag) has a tree structure based on the parent-child relationship.

Incidentally, FIG. 9 (A), the in the example of (B), an example is shown in which location ID is calculated tag _{P 1} as a parent node, in fact parent each position ID is p1, p2, p3 are As nodes, it is necessary to calculate evaluation values for all combinations. Then, the tag is finally determined in the reading order (tree) represented by the terminal node having a high evaluation value.

  In order to reduce the amount of processing, candidates (nodes) with extremely low evaluation values may be excluded at the stage where the evaluation values of the nodes at each stage are determined from a certain piece of motion information during the calculation. In this case, for example, a candidate whose evaluation value is 1/100 or less compared to the highest evaluation value candidate can be processed such as excluding candidates whose threshold value is less than a preset threshold. It is not limited to.

  For example, the tag arrangement correspondence setting unit 16 extracts the next ID information and the next motion information of the motion information sequence one by one from the read tag ID sequence, and each node (position ID reading order candidate) ) Is evaluated. At this time, the ID information can be used to limit the transitioned child node by comparing with the ID that has already been taken out. For example, possible permutations can be limited. For example, since the ID information for the third time is different from the ID information for the first time and the second time, the candidates (nodes) inconsistent with the information are excluded so that the position ID is p1⇒p2⇒p1, etc. Can be omitted. Similarly, since the fourth ID information is the same as the first ID, candidates (nodes) inconsistent with the information such as p1⇒p2⇒p4⇒p2 can be excluded.

<Example of procedure for determining tag reading order>
FIG. 10 is a diagram illustrating an example of a procedure for determining the tag reading order. In the example of FIG. 10, parentheses [] indicate the evaluation value E. In the example of FIG. 10, “...” Indicates that the child node tree notation is omitted. The “x” mark indicates that the ID information string is excluded due to permutation restrictions.

  The example of FIG. 10 shows the result of calculating the evaluation values from the tag candidates p1 to P4 read for the first time to the tag candidates read for the fifth time. Since the evaluation values of the tags read for the first time do not have a moving direction, the evaluation values are all 1.0. The evaluation value can be calculated using the above-described mathematical formulas. In the example of FIG. 10, since the evaluation value = 0.52 is the highest at the end node, the reading order can be determined as p3⇒p4⇒p1⇒p3⇒p2 as the finally narrowed permutation. .

  Further, in the present embodiment, since the correspondence between the ID (real ID) of the wireless tag and the position ID based on the design data is determined in the determined reading order, information on the function assigned to the position ID in advance is assigned to the corresponding real ID. Can be assigned. As a result, for example, the relationship between the real ID and the position ID can be associated with p1 = 0003, p2 = 0007, p3 = 0002, p4 = 0005, and the like. Can be assigned to an ID.

  In the present embodiment, for example, a method has been described in which tag IDs are actually read and then collectively processed. However, the present invention is not limited to this. For example, the tag arrangement correspondence setting unit 16 calculates an evaluation value every time one tag ID is read, and the number of candidates becomes one, or the largest evaluation value and the evaluation value with the next highest value (next If the difference from the point evaluation value is equal to or greater than a preset threshold value (for example, 100 times), the permutation (reading order) of the tag ID positions is confirmed at that stage, and the end is notified to the user. Also good.

<Method to narrow down tag reading order candidates from all motion information>
Here, a method of narrowing down tag reading order candidates in advance from all motion information obtained from the terminal device 10 will be described with reference to the drawings. FIG. 11 is a diagram for explaining a method of previously narrowing down tag reading order candidates from all motion information.

  For example, in the present embodiment, the tags before and after the movement can be narrowed down from the movement information of each time for acquiring the tag ID. For example, for the design data (position IDs: p1 to P4) of the positions of the wireless tags 61 to 64 shown in FIG. ”,“ Tag ID after movement: 0005 ”, and“ motion information: downward ”are obtained. In this case, since the wireless tags 63 and 64 with the position IDs p3 and p4 do not have a tag in the downward direction, the candidates for the tag ID: 0002 before the movement are the wireless tags 61 and 62 with the position IDs p1 and p2. It is narrowed down to. Similarly, the wireless tags 61 and 62 with the position IDs p1 and p2 have no tag in the upward direction (they do not move downward from the top). , P3, and p4 wireless tags 63 and 64.

  A direction vector that can be moved with respect to all tag position pairs is obtained from the tag position information, and an angle difference is calculated for each of the direction vectors obtained from the motion information. When all the angle differences are equal to or greater than a preset threshold value, the tag position can be excluded from the candidates.

Further, for example, when the wireless tags 61 to 64 whose position IDs are p1 to p4 are arranged in a horizontal row as shown in FIG. 11B, the tag ID and the motion information are acquired. As a result, for example, for the time series of times 1 to 4,
"Time 1 Tag ID: 0001 Movement information: Right direction"
"Time 2 Tag ID: 0002 Movement information: Right direction"
"Time 3 Tag ID: 0003 Movement information: Right direction"
“Time 4 Tag ID: 0004”
Is obtained. Next, candidates for the tag ID at the tag position are narrowed down from the motion information described above. As a result, for time 1,
0001 candidates: [p1, p2, p3]
0002 candidates: [p2, p3, p4]
For time 2
0002 candidates: [p1, p2, p3]
0003 candidates: [p2, p3, p4]
For time 3,
0003 candidates: [p1, p2, p3]
0004 candidates: [p2, p3, p4]
Therefore, when considering the product set for tag IDs with multiple information,
0001 candidates: [p1, p2, p3]
0002 candidates: [p2, p3]
0003 candidates: [p2, p3]
0004 candidates: [p2, p3, p4]
Can be obtained.

Here, if all possible tag reading transition sequences are extracted,
Candidate 1: p1⇒p2⇒p3⇒p4
Candidate 2: p1⇒p3⇒p2⇒p4
At this point, the number is reduced to two. Therefore, focusing on only these two candidates, the final correspondence is determined by evaluating the tag reading transition sequence candidates based on the motion information as described above. Thereby, assignment such as 0001: p1,0002: p2,0003: p3,0004: p4 can be set in a short time.

<Example when straight line cannot be moved>
In the embodiment described above, since the reading order is determined by evaluating the moving direction (direction vector), it is preferable that the movement between the tags is a linear movement. However, there are cases in which a straight line cannot be moved between tags due to an obstacle or the like. Here, in this embodiment, an example in which the terminal device 10 cannot move linearly between tags due to an obstacle or the like will be described with reference to the drawings. FIG. 12 is a diagram for explaining a correspondence example when a straight line cannot be moved between tags. For example, as illustrated in FIG. 12A, the terminal device 10 may not be able to move linearly between the wireless tag 61 and the wireless tag 62 in the vicinity of the object or the object due to the influence of the obstacle 70 or the like. In such a case, as shown in FIG. 12B, a stop point is provided during the movement, and the terminal device 10 is moved by relaying the stop point.

For example, the terminal device 10 divides the sensor information obtained from the inertial sensor 13 with reference to each stop point shown in FIG. 12B (stop point 1 and stop point 2 in the example of FIG. 12B). Then, the movement direction v _i (v ₀ , v ₁ , v _{2 in} the example of FIG. 12B) is obtained in each section. The stop point can be extracted on the basis of the fact that the variance of acceleration for a certain time is equal to or less than a threshold value. The movement direction of each section is weighted and added by the integral value of the movement time t _i (t ₀ , t ₁ , t ₂ ) in each section in the example of FIG. the motion information v _{(e.g., v = Σ i t i v} i / Σ i t i) it can be acquired. Thereby, the moving direction (direction vector) from the wireless tag 61 to the wireless tag 62 can be acquired, and the evaluation value and the like can be calculated using the moving direction. In addition, about design data, since a position coordinate, a function, etc. can be set irrespective of an obstruction, appropriate allocation can be implement | achieved using the information as it is.

  In addition, a description will be given of the criteria for determination when moving with a curve instead of a straight line. For example, when the terminal device 10 is moved in a curved path rather than a straight path, the number of times the norm of the triaxial acceleration changes in magnitude increases, so that the curve movement can be determined using the number of times. FIG. 13 is a diagram illustrating an example of an acceleration norm of a straight track and a curved track.

  In FIG. 13, the vertical axis indicates the norm of acceleration, and the horizontal axis indicates the number of samples of motion information measured by the inertial sensor 13 or the like between the tags. As shown in FIG. 13, the number of times the norm changes in the straight trajectory is smaller than that in the curved trajectory. Using this, for example, when the number of peaks is equal to or less than a preset threshold value (for example, the number of peaks is 5), it is assumed that the movement is performed in a straight path, and the movement is performed using the movement information of the terminal device 10 described above. Get direction. If it is larger than the threshold value, the moving direction may be acquired by using, for example, the measurement based on the double integration of the acceleration or the relative position change information obtained by the measurement by the camera, assuming that the moving is performed by the curved trajectory. The moving direction may be acquired by other methods.

<Other embodiments>
In the above-described embodiment, the example in which all the configurations for performing the above-described function assignment processing are provided in the terminal device 10 has been described. However, the present invention is not limited to this example. May be executed by an information processing device such as a server, and the tag reader 11 and the inertial sensor 13 are provided in a device different from the terminal device 10 (for example, a wristwatch type, a bracelet type, a ring type wearable device, etc.) It may be. Therefore, a schematic configuration example of the function assignment system according to another embodiment described above will be described with reference to the drawings.

  14 to 16 are diagrams (parts 1 to 3) illustrating configuration examples of the function assignment system. Note that, in the following system configuration, the same reference numerals are given to configurations that perform processes substantially similar to the configurations provided in the terminal device 10 described above, and a specific description thereof is omitted here.

  A function assignment system 80 a illustrated in the example of FIG. 14 includes a terminal device 81 and a server 82. The terminal device 81 and the server 82 are connected in a state in which data can be transmitted and received by a communication network represented by the Internet, a Local Area Network (LAN), and the like.

  The terminal device 81 includes a tag reader 11, a tag ID acquisition unit 12, an inertial sensor 13, and a motion information extraction unit 14. Further, the server 82 includes a design data acquisition unit 15, a tag arrangement correspondence setting unit 16, a tag arrangement correspondence storage unit 17, and a storage unit 18. The storage unit 18 includes function assigned tag arrangement design data 21 and function assigned tag arrangement correspondence data 22.

  As described above, the terminal device 81 transmits the tag ID string including the time information acquired from the tag reader 11 and the motion information string obtained from the measurement data of the inertial sensor 13 to the server 82. The server 82 sets the correspondence between the tag ID (actual ID) and the position ID using the information obtained from the terminal device 81 and the design data acquired by the design data acquisition unit 15 described above, and sets the position ID in advance. Can be assigned (associated) with the tag ID.

  The function assignment system 80b illustrated in the example of FIG. 15 includes a wearable device 83 and a terminal device 84. The wearable device 83 and the terminal device 84 are connected, for example, in a state where data can be transmitted and received via the communication network described above.

  The wearable device 83 is a device that can be worn on the user's arm or the like and is lightweight, so that the user can easily move it. The wearable device 83 includes a tag reader 11 and an inertial sensor 13. The terminal device 84 includes a tag ID acquisition unit 12, a motion information extraction unit 14, a design data acquisition unit 15, a tag arrangement correspondence setting unit 16, a tag arrangement correspondence storage unit 17, and a storage unit 18. . The storage unit 18 includes function assigned tag arrangement design data 21 and function assigned tag arrangement correspondence data 22.

  The user moves the arm on which the wearable device 83 is worn, and reads information from a plurality of wireless tags installed in the vicinity of the object or the object by the tag reader 11 in order. The wearable device 83 transmits the tag information read by the tag reader 11 and the measurement data at the time of reading the tag obtained by the inertial sensor 13 to the terminal device 84. The terminal device 84 inputs the tag information from the wearable device 83 with the tag ID acquisition unit 12, inputs the measurement data from the wearable device 83 with the motion information extraction unit 14, and, as described above, The correspondence relationship between the tag ID (actual ID) and the position ID is set using the motion information sequence and the design data acquired by the design data acquisition unit 15, and the function assigned in advance to the position ID is set as the tag ID. Can be assigned.

  A function assignment system 80c illustrated in the example of FIG. 16 includes a wearable device 85, a terminal device 86, and a server 87. The wearable device 85, the terminal device 86, and the server 87 are connected in a state where data can be transmitted and received, for example, via the communication network described above.

  The wearable device 85 includes the tag reader 11 and the inertial sensor 13. The terminal device 86 includes a tag ID acquisition unit 12 and a motion information extraction unit 14. The server 87 includes a design data acquisition unit 15, a tag arrangement correspondence setting unit 16, a tag arrangement correspondence storage unit 17, and a storage unit 18. The storage unit 18 includes function assigned tag arrangement design data 21 and function assigned tag arrangement correspondence data 22.

  The wearable device 85 transmits tag information read by the tag reader 11 and measurement data at the time of tag reading obtained by the inertial sensor 13 to the terminal device 86. The terminal device 86 inputs the tag information from the wearable device 85 by the tag ID acquisition unit 12, inputs the measurement data from the wearable device 85 by the motion information extraction unit 14, and, as described above, The motion information sequence is acquired and transmitted to the server 87.

  The server 87 sets the correspondence relationship between the tag ID (real ID) and the position ID using the information obtained from the terminal device 86 and the design data acquired by the design data acquisition unit 15 described above, and sets the position ID in advance. Can be assigned (associated) with the tag ID.

  By having a server as shown in the above-described function assignment systems 80a and 80c, information from a plurality of terminal devices 81 and 86 can be collectively processed or statistically processed. In addition, the devices can be easily moved by using the wearable devices 83 and 85 as shown in the function assignment systems 80b and 80c. In addition, the terminal devices 84 and 86 can collectively process information obtained from a plurality of wearable devices or can perform statistical processing.

  As described above, in the example of another embodiment, on the premise that various reading devices (gadgets) that read tags can measure the operation direction of the device, a plurality of tags attached to the instrument (near the instrument) Operate to read in a series of operations. Then, the server or the like narrows down the positional relationship of the tag ID based on the tag ID read by the external device such as the gadget, the moving direction of the gadget, and the time relationship, and specifies the ID that specifies the function corresponding to each position. By associating, the efficiency of assigning the function to the tag ID can be realized.

  As described above, according to the present embodiment, it is possible to efficiently associate (link) a reference object such as a tag with a function. For example, on-site maintenance, inspection support and the like can be realized. For example, a tag is attached to or near an object such as an instrument installed at the site, and when the tag is read, guidance information (operation method, etc.) about the instrument is notified to the operator through the operator's terminal device. be able to. Thereby, appropriate work support can be performed.

  Also, in this embodiment, an example of inspection work and the like has been described, but this is an intuitive operation of touching an object in the real world to which a tag is attached, and various services related to the object can be easily performed. It is just one example of user interface application that can be received.

  Therefore, by applying this embodiment, for example, a tag is attached to each place that becomes a main point of a paper medium poster or advertisement, and when the tag is read, detailed information on the item corresponding to the object is obtained. By providing the user, the user can easily access the information.

  Also, for example, in a home where there are a plurality of home appliances that can be operated via a communication network, a tag is attached to the layout of home appliances that are objects, and the user can operate each home appliance by reading the tag. it can. Thereby, the user can operate a household appliance intuitively.

  Although the embodiments have been described in detail above, the invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope described in the claims. It is also possible to combine some or all of the embodiments described above.

In addition, the following additional remarks are disclosed regarding the above Example.
(Appendix 1)
The terminal device
The storage unit stores the positions of a plurality of reference objects installed with respect to the object and the functions associated with the positions,
Read identification information from a plurality of reference objects installed on the object by a series of movements of the terminal device,
By narrowing down the permutation of the positions of the reference objects stored in the storage unit based on the moving direction between the reference objects obtained when reading the identification information and the time information when the identification information is read. Locate the object,
A function assignment method, wherein the function associated with the identified position of the reference object is assigned to the identification information.
(Appendix 2)
The evaluation of the position of the reference object when narrowing down the permutation of the position of the reference object is performed using the position information of a plurality of reference objects stored in the storage unit and the angle calculated from the moving direction. The function assignment method according to supplementary note 1, characterized by:
(Appendix 3)
Based on the movement direction obtained for each movement between the reference objects using each of the plurality of reference objects stored in the storage unit as a candidate, the position of the reference object is evaluated, and the reference object permutation having the highest evaluation is performed. The function assigning method according to appendix 2, wherein a function corresponding to each reference object is assigned in association with.
(Appendix 4)
The function assigning method according to appendix 3, wherein a reference object whose evaluation value is equal to or less than a preset threshold value is excluded from candidates.
(Appendix 5)
When the terminal device cannot move linearly between the reference objects, the terminal device is divided based on the stop point set during the movement between the reference objects, and the movement direction between the reference objects is based on the movement direction of each divided section. The function assigning method according to any one of appendices 1 to 4, wherein the function assigning method is acquired.
(Appendix 6)
The storage unit stores the positions of a plurality of reference objects installed with respect to the object and the functions associated with the positions,
Read identification information from a plurality of reference objects installed on the object by a series of movements of the terminal device,
By narrowing down the permutation of the positions of the reference objects stored in the storage unit based on the moving direction between the reference objects obtained when reading the identification information and the time information when the identification information is read. Locate the object,
A function assignment program for causing a computer to execute a process of assigning the function associated with the identified position of the reference object to the identification information.
(Appendix 7)
A storage unit for storing the positions of a plurality of reference objects to be installed with respect to the object, and functions associated with the respective positions;
Read identification information from a plurality of reference objects installed on the object by a series of movements, based on the movement direction between the reference objects obtained at the time of reading the identification information, and the time information read the identification information, A function of specifying the position of the reference object by narrowing down the permutation of the position of the reference object stored in the storage unit, and assigning the function associated with the specified position of the reference object to the identification information A terminal device having an allocating unit;
(Appendix 8)
A storage unit that stores the positions of a plurality of reference objects to be installed with respect to the object and a function associated with each position;
The identification information obtained by a series of movements of the external device and read from a plurality of reference objects installed on the object, the moving direction between the reference objects obtained when reading the identification information, and the identification information are read. The position of the reference object is identified by narrowing down the permutation of the position of the reference object stored in the storage unit based on the time information, and the position of the reference object is associated with the identified position of the reference object An information processing apparatus comprising: a function assigning unit that assigns a function to the identification information.

10, 81, 84, 86 Terminal device 11 Tag reader (reading unit)
12 Tag ID acquisition unit (identification information acquisition unit)
DESCRIPTION OF SYMBOLS 13 Inertial sensor 14 Motion information extraction part 15 Design data acquisition part 16 Tag arrangement | positioning correspondence setting part (function allocation part)
17 Tag Arrangement Correspondence Saving Unit 18 Storage Unit 21 Function Allocated Tag Arrangement Design Data 22 Function Allocated Tag Arrangement Correspondence Data 31 Microphone 32 Speaker 34 Operation Unit 35 Sensor Unit 36 Power Unit 37 Radio Unit 38 Near Field Communication Unit 39 Auxiliary Storage device 40 Main storage device 41 CPU
42 drive device 43 recording medium 51-54 tag 55 pressure gauge 56 water meter 57 water temperature state output unit 58 drainage state output unit 61-64 wireless tag 70 obstacle 80a-80c function assignment system 82, 87 server (information processing device)
83,85 Wearable devices

Claims (6)

The terminal device
The storage unit stores the positions of a plurality of reference objects installed with respect to the object and the functions associated with the positions,
Read identification information from a plurality of reference objects installed on the object by a series of movements of the terminal device,
By narrowing down the permutation of the positions of the reference objects stored in the storage unit based on the moving direction between the reference objects obtained when reading the identification information and the time information when the identification information is read. Locate the object,
A function assignment method, wherein the function associated with the identified position of the reference object is assigned to the identification information.   The evaluation of the position of the reference object when narrowing down the permutation of the position of the reference object is performed using the position information of a plurality of reference objects stored in the storage unit and the angle calculated from the moving direction. The function assignment method according to claim 1.   Based on the movement direction obtained for each movement between the reference objects using each of the plurality of reference objects stored in the storage unit as a candidate, the position of the reference object is evaluated, and the reference object permutation having the highest evaluation is performed. The function assigning method according to claim 2, wherein a function corresponding to each reference object is assigned in association with the reference object.   The function assignment method according to claim 3, wherein a reference object whose evaluation value is equal to or less than a preset threshold value is excluded from candidates. The storage unit stores the positions of a plurality of reference objects installed with respect to the object and the functions associated with the positions,
Read identification information from a plurality of reference objects installed on the object by a series of movements of the terminal device,
By narrowing down the permutation of the positions of the reference objects stored in the storage unit based on the moving direction between the reference objects obtained when reading the identification information and the time information when the identification information is read. Locate the object,
A function assignment program for causing a computer to execute a process of assigning the function associated with the identified position of the reference object to the identification information. A storage unit for storing the positions of a plurality of reference objects to be installed with respect to the object, and functions associated with the respective positions;
Read identification information from a plurality of reference objects installed on the object by a series of movements, based on the movement direction between the reference objects obtained at the time of reading the identification information, and the time information read the identification information, A function of specifying the position of the reference object by narrowing down the permutation of the position of the reference object stored in the storage unit, and assigning the function associated with the specified position of the reference object to the identification information A terminal device having an allocating unit;

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