JP5239283B2 - Terminal device and program used therefor - Google Patents

Description

  The present invention belongs to the technical field of a geographical information providing system, and particularly relates to a technology for providing distance information on a map printed on an electronic pen medium or the like by an electronic pen.

  In recent years, pen-type input devices called “electronic pens” and “digital pens” have appeared (hereinafter referred to as “electronic pens” in this specification). The developed “Anoto pen” is known (see Patent Document 1). Anotopen is used with special paper on which a predetermined dot pattern is printed. In addition to the normal ink-type pen tip, the Anoto pen is equipped with a small camera for reading the dot pattern on the dedicated paper and a data communication unit. When a user writes characters on the special paper with an annotation pen, or puts a check mark on the image designed on the special paper, the small camera displays the dot pattern printed on the special paper as the pen moves. Entry information such as characters and images detected and written by the user is acquired. This entry information is transmitted from the Anotopen by the data communication unit to a terminal device such as a nearby personal computer or mobile phone. The system using this anotopen can be used as an input device in place of the keyboard, and is very easy to use for users who are reluctant to use the personal computer and keyboard described above. Therefore, as a method for digitizing data entered in various business documents, application forms, contracts, etc., a system using an electronic pen is becoming widespread (for example, Patent Document 2).

  The applicant uses an electronic pen, such as that found in Anoto's technology, on the dedicated paper on which the map is printed. A geographical information providing system that provides a route to a destination and distance information of the route has been proposed (see Patent Document 3). Even before the applicant's proposal, construction sites, surveying companies, and map companies often find the length, etc. from the drawings. Use a coordinate input device with a digitizer and hit the panel with a stylus pen to obtain the coordinate value. For example, a technique for obtaining a length in an architectural drawing has been proposed (see Patent Document 4). Japanese Patent Application Laid-Open No. 7-121698 (Patent Document 5) discloses a method of approximating sampling of handwritten data with a spline curve so that the maximum separation distance from the data does not exceed a preset threshold value. ing. That is, if the maximum distance between the curve and the data subjected to the spline interpolation is equal to or greater than a threshold value, the data giving the distance is newly added as a node, and the spline interpolation is performed.

Japanese translation of PCT publication No. 2003-511761 JP 2004-153612 A JP 2004-46424 A Japanese Patent Publication No. 3-50283 Japanese Patent No. 2969189

  However, the above-described geographical information providing system calculates the shortest straight path from the departure point to the destination based on the latitude and longitude information of the departure point and the latitude and longitude information of the destination. Therefore, since this geographical information providing system does not calculate distance information of routes other than the shortest straight route, there is a problem in that it cannot always provide distance information regarding a user's desired route. Similarly, the above-described coordinate input device using a digitizer merely hits the panel with a stylus pen and obtains a length between input coordinate values. In addition, when calculating the distance of a route drawn on a map, there is a method in which a roller attached to a wristwatch is rotated on a map to obtain a route as in Patent Document 5, but this method is called a roller. Requires mechanical mechanism.

  Furthermore, in obtaining the distance on the map so far, the actual topography has a height difference due to the altitude difference. However, in the techniques disclosed in Patent Documents 3 and 4, the actual difference in consideration of such a height difference is considered. It was not possible to find the distance.

  Therefore, the present invention provides a terminal device that can provide accurate distance information reflecting height information according to a route desired by a user by operating an electronic pen or a scanner, and also provides a program used therefor. For the purpose.

  The terminal device according to the present invention receives discrete coordinate data calculated by reading a coded pattern printed on a medium from an electronic pen or a scanner, and calculates a distance according to the length of the handwriting from the coordinate data. A data communication means for receiving coordinate data; and a plurality of position coordinates of the coordinate data received by the data communication means and calculated by the electronic pen or the scanner along the handwriting. Then, an approximate line corresponding to the line segment when the electronic pen or scanner is traced is obtained, and a minute area through which the approximate line passes is extracted from a plurality of minute areas that are set to finely divide the medium and each have height information. Then, the center points of two adjacent minute regions of the extracted minute regions are connected with a straight line, and the height information of the two adjacent minute regions is included. By correcting the length of the straight line, characterized in that it comprises a distance calculating means for calculating a distance corresponding to the handwriting by adding the length of each corrected linearly.

  According to this configuration, when the user fills in or moves on the medium while touching the medium with the electronic pen or the scanner, the electronic pen or the scanner acquires the discrete coordinate data along the handwriting or the movement locus. Calculate and send to terminal device. In the terminal device, the data communication unit receives the coordinate data transmitted from the electronic pen or the scanner, and the distance calculation unit adds the height information to the plurality of position coordinates calculated by the position coordinate calculation unit. Based on this, an approximate line corresponding to the line segment traced by the electronic pen or the scanner is obtained, and a minute area through which the approximate line passes from a plurality of minute areas each set to finely divide the medium and having height information. Each extracted straight line is obtained by connecting the center points of two adjacent minute areas of the extracted minute areas with a straight line, correcting the length of the straight line based on the height information of the two adjacent minute areas. The distance corresponding to the handwriting is calculated by adding the lengths of. Therefore, when the user enters desired characters or line segments with an electronic pen or a scanner, the terminal device can accurately calculate the distance reflecting the height information in accordance with the handwriting.

  Alternatively, the terminal device according to the present invention receives discrete coordinate data calculated by reading the coded pattern of the medium on which the map area and the coded pattern are printed, from the electronic pen or the scanner, and from the coordinate data A terminal device for calculating a distance on the ground surface corresponding to a route indicated by a handwriting on the map area, the data communication means receiving coordinate data, received by the data communication means, and along the handwriting Based on a plurality of position coordinates of the coordinate data calculated by the electronic pen or the scanner, an approximate line corresponding to a line segment traced by the electronic pen or the scanner is obtained, and the map area is set to be divided finely. Extract the micro area through which the approximate line passes from a plurality of micro areas each having height information. The map is obtained by connecting the center points of two adjacent minute regions with a straight line, correcting the length of the straight line based on the height information of the two adjacent minute regions, and adding the corrected lengths of the straight lines. And a distance calculating means for calculating a distance on the ground surface corresponding to the handwriting on the area.

  According to this configuration, when the user traces the medium with the electronic pen or the scanner in contact with the map area of the medium, the electronic pen or the scanner calculates discrete coordinate data along the traced path, Send to terminal device. In the terminal device, the data communication unit receives the coordinate data transmitted from the electronic pen or the scanner, and the distance calculation unit adds the height information to the plurality of position coordinates calculated by the position coordinate calculation unit. Based on this, the approximate line corresponding to the line segment traced by the electronic pen or scanner is obtained, and the approximate area passes through the approximate line from a plurality of minute areas that are set to finely divide the map area and each have height information And connecting the center points of two adjacent micro regions of the extracted micro regions with a straight line, correcting the length of the straight line by the height information of the two adjacent micro regions, The distance on the ground surface corresponding to the handwriting on the map area is calculated by adding the lengths of the straight lines. Therefore, when the user traces a desired route on the map area with the electronic pen or the scanner, the terminal device accurately calculates the distance on the map reflecting the height information according to the handwriting traced on the map area. Can be calculated well.

  Furthermore, the terminal device may include notifying means for notifying the distance calculated by the distance calculating means. Thereby, the user can recognize the distance calculated by the distance calculation means.

  Further, the program according to the present invention receives discrete coordinate data calculated by reading a coded pattern printed on a medium from an electronic pen or scanner, and calculates a distance corresponding to the length of the handwriting from the coordinate data. A program executed by a computer that performs calculation, a data communication unit that receives coordinate data, a plurality of coordinate data received by the data communication unit, and calculated by the electronic pen or the scanner along the handwriting Based on the position coordinates, an approximate line corresponding to a line segment traced by the electronic pen or scanner is obtained, and the approximate line passes through a plurality of minute regions each set to finely divide the medium and each have height information. Extract the micro area, connect the center points of two adjacent micro areas of the extracted micro area with a straight line, Correcting the length of a straight line based on the height information of two minute areas that meet each other, and adding the corrected straight line lengths to cause the computer to function as a distance calculation means for calculating a distance according to the handwriting It is characterized by.

  Alternatively, the program according to the present invention receives discrete coordinate data calculated by reading the coded pattern of the medium on which the map area and the coded pattern are printed, from an electronic pen or scanner, and from the coordinate data, A program executed by a computer that calculates a distance on the ground surface corresponding to a route indicated by a handwriting on a map area, the data communication means receiving coordinate data, received by the data communication means, and along the handwriting Based on a plurality of position coordinates of the coordinate data calculated by the electronic pen or the scanner, an approximate line corresponding to a line segment traced by the electronic pen or the scanner is obtained, and the map area is finely divided. Micro area where approximate line passes from multiple micro areas that are set and each have height information Each extracted straight line is obtained by connecting the center points of two adjacent minute areas of the extracted minute areas with a straight line, correcting the length of the straight line based on the height information of the two adjacent minute areas. The computer is caused to function as distance calculation means for calculating the distance on the ground surface corresponding to the handwriting on the map area by adding the lengths of the two.

  By executing the above program on a computer, the above-described terminal device can be realized.

  According to the terminal device and the program used therefor according to the present invention, when an entry is made on a medium such as a map area by operating an electronic pen and a scanner, the locus is calculated while calculating the coordinate data of the locus due to the entry. Calculate the distance. At this time, an approximate line is obtained from discrete coordinate data acquired by an electronic pen or a scanner, a plurality of minute areas through which the approximate line passes are extracted, and a straight line connecting the center points of these minute areas is corrected by height information. It is possible to obtain the path more accurately by multiplying the sum and making it closer to the actually drawn trajectory and taking into account the height information of the terrain. Thereby, accurate distance information according to the route desired by the user can be provided.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 shows a system configuration diagram of a map information providing system using the terminal device 3 of the present embodiment. As shown in FIG. 1, the map information providing system is transmitted from a dedicated paper (medium) 2A (2) on which a map is printed, an electronic pen 1A (1) for tracing on the map, and the electronic pen 1A. The terminal device 3 is composed of a personal computer, a mobile phone, or the like that receives information, calculates information about the map, and notifies the calculation result. The terminal device 3 receives discrete coordinate data calculated by reading a dot pattern (coded pattern) printed on the dedicated paper 2A from the electronic pen 1A, and according to the length of the handwriting from the coordinate data. The distance is calculated.

  The electronic pen 1A includes a pen tip portion 1a similar to a normal ink pen. When a user writes characters or a pattern on the dedicated paper 2A using the pen tip portion 1a in the same manner as a normal ink pen, the pen tip portion 1a. The dot pattern printed on the dedicated paper 2A is read locally and continuously along the trajectory (handwriting) moved, and the coordinates of the local position on the dedicated paper 2A are calculated. Together with the coordinate data, the electronic pen 1A The electronic pen identification ID for identifying the information, the written time information (time stamp), and the like are associated with each other and transmitted to the terminal device 3. When the terminal device 3 receives the electronic pen identification ID, the coordinate data, and the like from the electronic pen 1A, the terminal device 3 calculates a distance according to the movement locus of the electronic pen 1A based on the received coordinate data. Hereinafter, each configuration of the system will be described in detail.

[Special paper]
First, the dedicated paper (medium) 2A will be described. The dedicated paper 2A used in the present embodiment is a paper in which a dot pattern is printed on a paper, and further, a ruled line, an entry frame, a map and other designs and items, words, illustrations, and the like are printed thereon. The dot pattern is printed with ink containing carbon that absorbs infrared rays. In addition, the design or the like is printed with ink that does not absorb in the infrared region. The dot pattern and the design may be printed on the paper at the same time, or either one may be printed first.

  FIG. 2 shows an example of dedicated paper 2A on which a map or the like used in this embodiment is printed. The dedicated paper 2A shown in FIG. 2 has a map area 100 for displaying a map. The dot pattern is printed on almost the entire surface of the dedicated paper 2A, and on it, a map pattern, characters such as a building name, a map symbol, and the like are printed with normal ink not containing carbon. The user enters a desired route from the departure point to the destination in the map area 100 using the electronic pen 1A without being aware of the dot pattern.

[Dot pattern]
Next, a dot pattern (coded pattern) will be described. The dot pattern read by the electronic pen 1A employs the above-mentioned Anoto technology. FIG. 3 is a diagram for explaining the relationship between the dot position of the dot pattern printed on the dedicated paper 2A and the value to which the dot is converted. As shown in FIG. 3, each dot of the dot pattern is associated with a predetermined value depending on its position. That is, each dot is associated with a value of 0 to 3 depending on the direction in which the position of the dot is shifted from the reference position of the grid (intersection of vertical and horizontal lines: grid point). The value of each dot is further converted into a first bit value for the X coordinate and a second bit value for the Y coordinate. The dot pattern is configured such that the position coordinates on the dedicated paper 2A are determined by the combination of the information thus associated.

  FIG. 4 is a diagram for explaining a method of expressing information by a dot pattern printed on the dedicated paper 2A. FIG. 4A shows an arrangement of dot patterns in a certain local portion on the dedicated paper 2A. As shown in FIG. 4 (a), 6 × 6 dots are arranged in a range of about 2 mm in length and width so that a unique pattern can be obtained regardless of where 6 × 6 dots are taken from any part of the dedicated paper 2A. ing. The dot pattern formed by these 36 (= 6 × 6) dots has position coordinates (for example, where the dot pattern is located on the dedicated paper 2A) and a dot pattern address (coded pattern address). keeping. FIG. 4B is a diagram in which each dot shown in FIG. 4A is converted into a value associated with the regularity shown in FIG. 3 according to the shift direction from the reference position of the lattice. This conversion is performed by the electronic pen 1A that captures a dot pattern image.

[Electronic pen]
Next, the electronic pen 1A will be described with reference to FIG. The electronic pen 1 </ b> A includes a processor 11, a data communication unit 12, a battery 13, an LED 14, a CMOS camera 15, a pressure sensor 16, an ink cartridge 17, and a clock 18 inside the housing 10. The tip of the ink cartridge 17 is a pen tip portion 1a, and the user can draw a path, characters, and a picture while bringing the pen tip portion 1a of the electronic pen 1A into contact with the special paper 2A.

  The battery 13 is for supplying power to each component in the electronic pen 1A. For example, the power of the electronic pen 1A itself is turned on / off by attaching / detaching a cap (not shown) of the electronic pen 1A. May be. The pressure sensor 16 detects the pressure applied to the pen tip 1 a when the user writes characters on the dedicated paper 2 </ b> A with the electronic pen 1 </ b> A, that is, the writing pressure, and supplies the detected pressure to the processor 11. The clock 18 transmits time information indicating the current time (time stamp) and supplies the time information to the processor 11.

  The processor 11 switches on / off the switches of the LED 14 and the CMOS camera 15 based on the writing pressure data supplied from the pressure sensor 16. That is, when a user writes a character or the like on the dedicated paper 2A with the electronic pen 1A, the pen tip 1a is applied with writing pressure, and when the pressure sensor 16 detects a writing pressure of a predetermined value or more, the processor 11 Determines that the user has started entry, and activates the LED 14 and the CMOS camera 15. On the other hand, if the writing pressure detected by the pressure sensor 16 is less than the predetermined value, the processor 11 determines that the writing pressure by the user has ended, and ends the operation of the LED 14 and the CMOS camera 15.

  The LED 14 and the CMOS camera 15 are attached in the vicinity of the pen tip portion 1a of the electronic pen 1A, and an opening 10a is formed in a portion of the housing 10 facing the LED 14 and the CMOS camera 15. The LED 14 illuminates infrared rays toward the vicinity of the pen tip 1a (area A: see FIG. 1) on the dedicated paper 2A. The area A is slightly deviated from the position where the pen tip 1a contacts the special paper 2A. The CMOS camera 15 captures a dot pattern in the area A illuminated by the LED 14 and supplies image data of the dot pattern to the processor 11. Here, since carbon absorbs infrared rays, the infrared rays irradiated by the LED 14 are absorbed by the carbon contained in the dots at the dot portions. Therefore, the dot portion has a small amount of infrared reflection, and the portion other than the dot has a large amount of infrared reflection. Therefore, by photographing with the CMOS camera 15, it is possible to distinguish the dot region containing carbon from the other region based on the difference in the amount of reflected infrared rays. Even if ruled lines or frames are printed in the photographing region, the ink such as the ruled lines and frames does not have absorbability in the infrared region, so that the dot pattern can be recognized. Note that the imaging area of the CMOS camera 15 is a range including a size of about 2 mm × about 2 mm as shown in FIG. 4A, and the imaging of the CMOS camera 15 is performed about 50 to 100 times per second.

  During the user's entry, the processor 11 determines the X and Y coordinates (simply “coordinates”) on the dedicated paper 2 of the stroke (handwriting) to be entered by the user from the dot pattern of the image data supplied by the CMOS camera 15. Data is also calculated continuously. That is, the processor 11 converts the image data of the dot pattern as shown in FIG. 4A supplied by the CMOS camera 15 into the data array shown in FIG. It converts into a Y coordinate bit value, calculates X, Y coordinate data from the data array by a predetermined calculation method, and calculates a dot pattern address. Here, the dot pattern address is an identifier set for each page or each type of the dedicated paper 2A on which the map area 100 is printed, but at least the dot pattern address and the map scale information can correspond to each other. A dot pattern address is associated with each map area 100.

  Then, the processor 11 associates the time information 21 acquired from the clock 18, the dot pattern address 22, the coordinate data 23, and the writing pressure data 24, and generates these information as the entry information 20. Then, the processor 11 causes the data communication unit 12 to transmit the entry information 20 to the terminal device 3. FIG. 6 shows a conceptual diagram of the entry information 20. Here, since the 6 × 6 dot pattern on one sheet of special paper 2A does not overlap within the special paper 2A, when the user traces the map area 100 with the electronic pen 1A, the traced portion is found. The position in the map area 100 can be specified from the entry information 20.

  The data communication unit 12 wirelessly transmits the entry information 20 associated with the time information 21, the dot pattern address 22, the coordinate data 23, and the writing pressure data 24 supplied by the processor 11 to the terminal device 3. Transmission by the data communication unit 12 is preferably performed by wireless transmission using Bluetooth (registered trademark). The data communication from the data communication unit 12 to the terminal device 3 may be performed by other methods such as wired transmission using a USB cable and data communication by contact with a terminal. Transmission of the entry information 20 to the terminal device 3 by the data communication unit 12 is performed immediately and sequentially.

[Terminal device]
Next, the terminal device 3 will be described with reference to FIG. The terminal device 3 includes, as hardware, an antenna device capable of data communication with the electronic pen 1A, a processor such as a CPU, a memory such as a ROM and a RAM, a speaker, a display, and the like. It is. FIG. 7 is a functional block diagram of the terminal device 3. The terminal device 3 performs a predetermined process by executing a dedicated application using the entry information 20 including the X and Y coordinate data received from the electronic pen 1A.

  As illustrated in FIG. 7, the terminal device 3 includes an information storage unit 30, a data communication unit 31, a distance calculation unit 32, a voice output unit 33 (notification unit), and a display unit 34 (notification unit). Physically, the information storage means 30 is constituted by a memory such as a ROM or a RAM, the data communication means 31 is constituted by a data communication unit, a processor or the like, the audio output means 33 is a speaker, the display means 34 is a display or the like. Composed. The distance calculation means 32 is incorporated in a processor such as a CPU.

  The information storage means 30 stores the scale value of the map printed on the map area 100 specified by the dot pattern address 22 in the map area 100 as scale information associated with the dot pattern address 22. Further, the information storage means 30 stores a plurality of minute areas set so as to finely divide the map area 100 into a lattice shape, and height information in which the altitude is reduced by the scale value c for each minute area. Yes. Further, the information storage means 30 is a memory for storing the entry information 20 received from the electronic pen 1A, the length L of the locus (handwriting) calculated by the distance calculation means 32, and the distance (distance) D on the ground surface.

  Here, the minute area and the height information will be described. As shown in FIGS. 11 and 12, which will be described later, the map area 100 is minutely arranged in a lattice pattern so that the map area 100 has height information that reflects the altitude. Each minute region is divided into regions, and each minute region has height information in which the elevation is scaled by the scale value c with the center point as a representative point. Then, the information storage means 30 stores the position coordinates of each minute area constituting the map area 100, the position coordinates of the center point thereof, and height information in association with each other.

  The data communication means 31 is means for receiving the entry information 20 transmitted by the data communication unit 12 of the electronic pen 1A immediately and sequentially, by an antenna or the like that receives radio waves of a communication method by Bluetooth (registered trademark). Composed.

  The distance calculation means 32 refers to the plurality of entry information 20 received by the data communication means 31, reads out the scale value associated with the dot pattern address 22 included in the entry information 20 from the information storage means 30, Based on the coordinate data 23 from the start point 701 to the end point 703 (see FIG. 9) of the trajectory (handwriting), the length L of the trajectory (handwriting) is calculated, and the distance on the ground surface (path) from the length. D is calculated and stored in the information storage means 30. That is, the distance calculation means 30 calculates the length L of the handwriting entered between the pen-down position and the pen-up position using the plurality of position coordinates of the coordinate data 23.

  More specifically, the distance calculation means 32 is received by the data communication means 31 and is calculated by the electronic pen 1A along the handwriting, and the coordinates of a plurality of discrete position coordinate data 23 having a time-series order. Based on the points, an approximate line corresponding to the line segment traced by the electronic pen 1 is obtained, and the map area 100 of the dedicated paper 20 is set to be divided finely. Extract a minute region through which the approximate line passes. Then, the distance calculation means 32 connects the center points of the two adjacent minute regions among the extracted minute regions, corrects the length of the straight line based on the height information of the two adjacent minute regions, and By adding the lengths of the straight lines, the length L of the handwriting is obtained with high accuracy by taking into account the height information of the terrain. The approximate line may be a curve obtained by interpolating the position coordinates of the coordinate data by an interpolation function such as a spline function or a Lagrangian function, or an interpolation line connecting the position coordinates of adjacent coordinate data with a straight line. There may be.

  At the same time, the distance calculation means 32 refers to the scale information stored in the information storage means 30 based on the dot pattern address 22 included in the entry information 20, and the scale value c corresponding to the dot pattern address 22. Read. Then, the distance calculation means 32 calculates a distance (path) D on the ground surface from the pen-down position to the pen-up position from the handwriting length L and the scale value c calculated as described above. . The scale information stored in the information storage means 30 may be a distance on the ground surface per unit length on the map (1 cm on the map corresponds to ○ km of the ground surface) or a scale ratio (1: 25000). 1/25000).

Here, in order to obtain the distance (distance) D on the ground surface, if s is a magnification to be multiplied based on the scale information with respect to the length on the map,
D = L x s
For example, if the scale value c = 1/25000,
D = L × s = L × 1 / c
It becomes.

  In other words, the distance calculation means 32 uses the electronic pen 1A from the pen down position to the pen up position when the detachment of the pen tip portion 1a is recognized based on the plurality of pieces of entry information 20 acquired from the electronic pen 1A. A distance (path) D on the ground surface corresponding to the trace (handwriting) traced by the map area 100 is calculated and transmitted to the audio output means 33 (speaker) and also stored in the information storage means 30.

  The distance calculation means 32 causes the sound output means 33 to notify the calculated distance (distance) D on the ground surface by sound. As an example of the guidance message by the voice output means 33, “the distance from the departure place to the destination is OO km” can be cited. Further, the distance (distance) D on the ground surface calculated by the distance calculation means 32 is displayed on the display means 34.

  The terminal device 3 includes the above-described units by installing a dedicated application for stroke processing.

[Dedicated application]
Next, the dedicated application (program) 4 installed in the terminal device 3 will be described with reference to FIG. FIG. 8 shows a module configuration of the dedicated application 4. The dedicated application 4 executes predetermined processing based on the entry information 20 regarding the route traced by the electronic pen 1A through the dedicated paper 2A, and is installed in the terminal device 3 in advance by downloading or the like. The dedicated application 4 is associated with the dedicated paper 2A, and the dedicated application 4 operates when the terminal device 3 receives the entry information 20 by filling in the dedicated paper 2A with the electronic pen 1A.

  As shown in FIG. 8, the dedicated application 4 includes a data communication module 41, an information storage module 42, and a distance calculation module 43.

  The data communication module 41 has a function of receiving the entry information 20 from the electronic pen 1A, and is a module that causes the terminal device 3 to configure the data communication means 31.

  The information storage module 42 is set so as to correspond to the dot pattern address 22 in the map area 100 and to hold the scale value of the map drawn in the map area 100 and to finely divide the map area 100 into a grid pattern. This is a module that stores a plurality of minute areas and height information in which the altitude is scaled by the scale value c for each minute area in the memory, and is a module that configures the information storage means 30 in the terminal device 3. In addition, this is a module that stores in the memory the entry information 20 acquired from the electronic pen 1A, the trajectory (handwriting) length L calculated by the distance calculation means 32, and the distance (distance) D on the ground surface. This module constitutes the information storage means 30.

  The distance calculation module 43 refers to the plurality of entry information 20, determines a route along the coordinate data 23, obtains the length L of the route, and further associates it with the dot pattern address 22 of the entry information 20. The scale value is read from the information storage means 30, the distance (path) D on the ground surface is calculated with reference to the scale value c, and the sound output means 33 is notified of the distance D on the ground surface by voice. This is a module that configures the distance calculation means 32 in the terminal device 3.

[Distance calculation processing in the map information provision system]
Next, distance calculation processing performed by the map information providing system of this embodiment will be described with reference to FIGS. 9 and 10. FIG. 9 is a diagram showing the dedicated paper 2A with handwriting traced with the electronic pen 1A. FIG. 10 is a flowchart of distance calculation.

  Here, the distance calculation processing in the present embodiment is the distance (distance) on the ground surface in the traced path from when the user brings the electronic pen 1A into contact with the map area 100 of the dedicated paper 2A until it is released. This is a process for calculating D and notifying the result. Further, as described above, as shown in FIGS. 11 and 12, the map area 100 is divided into a lattice shape, and each divided minute area ΔxΔy has its position coordinates, the position coordinates of the center point, and the scale value. The information storage means 30 associates the position coordinates of each minute region ΔxΔy constituting the map area 100, the position coordinates of the center point thereof, and height information. I remember it.

  As shown in FIG. 9, the user contacts (pens down) a starting point (contact start point) 701 on the map area 100 of the dedicated paper 2A with the pen tip 1a of the electronic pen 1A. Then, the electronic pen 1A detects a contact with the map area 100 when the writing pressure detected by the pressure sensor 16 is equal to or higher than a predetermined value (step S101), and the CMOS camera 15 irradiates infrared rays with the LED 14. The dot pattern is picked up by the processor 11, and the processor 11 calculates the coordinate data 23 and the dot pattern address 22 at the contact position to the map area 100 from the image data of the picked up dot pattern (step S102). Then, the processor 11 generates entry information 20 that associates the time information 21, the dot pattern address 22, the coordinate data 23, and the writing pressure data 24 indicating the current time transmitted by the clock 18 (step S103). Furthermore, the electronic pen 1A transmits the entry information 20 to the terminal device 3 (step S104).

  While the user keeps tracing the route desired by the user with the pen tip 1a of the electronic pen 1A in contact with the map area 100, the pressure sensor 16 continues to detect a writing pressure of a predetermined value or more. Since it is determined that the electronic pen 1A is not separated from the map area 100 (Step S105; No), the process moves to Step S102, and dots captured by the CMOS camera 15 at a predetermined interval (for example, 75 times per second). Steps S102 to S105 are repeated according to the pattern image data. That is, the electronic pen 1A calculates the coordinate data 23 and the dot pattern address 22 of each point (passing points 702A, 702B, 702C, 702D,...) Of the route (step S102), and the coordinate data 23 as described above. Etc. (step S103), and continues to transmit the entry information 20 to the terminal device 3 (step S104). Then, the user finishes tracing the route from the departure point to the destination, and at the end point 703, the electronic pen 1A is detached (pen-up) from the dedicated paper 2A. Then, the electronic pen 1A detects that it has left the map area 100 by detecting that the writing pressure by the pressure sensor 16 is less than a predetermined value (step S105; Yes), and ends the process.

  In this manner, the electronic pen 1A transmits the entry information 20 to the terminal device 3 immediately and sequentially while contacting the dedicated paper 2A. Here, “immediately” means that when the electronic pen 1A generates the entry information 20, the entry information 20 is immediately transmitted to the terminal device 3 and acquired by the terminal device 3. Means that while the electronic pen 1 </ b> A continuously acquires the entry information 20, the entry information 20 is sequentially transmitted to the terminal device 3 and acquired by the terminal device 3.

  The data communication means 31 of the terminal device 3 receives the entry information 20 immediately and sequentially from the electronic pen 1A. As a result, when the user traces the map area 100 of the dedicated paper 2A with the electronic pen 1A, the data communication means 31 of the terminal device 3 performs coordinate data corresponding to the dot pattern under the path traced by the electronic pen 1A in real time. 23 are acquired in chronological order. Then, the data communication unit 31 stores the entry information 20 received from the electronic pen 1A in the information storage unit 30 and transmits it to the distance calculation unit 32 (step S111).

  While the data communication unit 31 continues to receive the entry information 20 from the electronic pen 1A, the distance calculation unit 32 of the terminal device 3 continues to transmit the entry information 20 from the data communication unit 31. If the pen information of the electronic pen 1A is detected due to the interruption of the entry information 20 transmitted from 31 (step S112: YES), the process proceeds to the next step S113, and the reception of the entry information 20 is not interrupted. While the pen-up of the electronic pen 1A is not detected (step S112: No), the process returns to step S111, and the entry information 20 is sequentially stored in the information storage unit 30.

  When the distance calculation means 32 detects pen-up due to the interruption of reception of the entry information 20 (step S112: YES), the electronic pen 1A is traced based on the plurality of coordinate data 23 stored in the information storage means 30. An approximate line corresponding to the line segment is obtained by an interpolation function such as a spline function or a Lagrangian function (step S113). At this time, in order to be able to interpolate discrete coordinate data, the coordinate data string is divided into sections so that at least the X coordinate monotonously increases or decreases, and an interpolation function is applied to each section. The approximate line may be an interpolation straight line connecting the position coordinate points of adjacent coordinate data with a straight line.

  Subsequently, the distance calculation means 32 is set from the information storage means 30 so as to finely divide the map area 100 from a plurality of minute regions each having height information (elevation data information scaled by the scale value c). The micro area through which the approximate line passes and its height information are extracted (step S114), the center points of two adjacent micro areas in the extracted micro area are connected by a straight line, and the two adjacent micro areas have The length L of the handwriting corrected by the height information is obtained by correcting the length of the straight line based on the height information and adding the corrected lengths of the straight lines. Further, the distance calculation means 32 reads the scale value c corresponding to the dot pattern address with reference to the scale information stored in the information storage means 30 based on the dot pattern address, and the handwriting length L and the scale value c. From the above, the distance (distance) D on the ground surface is calculated (step S115).

  In general, the dot pattern address is the same for each type or page of the dedicated paper 2A, and the dot pattern address obtained in step S102 does not change. Therefore, the dot pattern address may be obtained only once, A repeated dot pattern address may be obtained and transmitted to the terminal device 3 if the dot pattern address has changed for some reason. In addition, as long as the dot pattern address does not change, the distance calculation means 32 of the terminal device 3 refers to the scale information and acquires the scale value only once.

  Subsequently, the distance calculation unit 32 causes the audio output unit 33 to notify the calculated distance (distance) D on the ground surface from the contact start point 701 to the end point 703 or to display the distance on the display unit 34 (step S116). ). This completes the distance calculation.

  As described above, when the user traces the electronic pen 1A along the desired route on the map area 100, the terminal device 3 accordingly responds to the plurality of computations performed along the route traced by the electronic pen 1A. Based on the position coordinates, the distance (path) D on the ground surface in the route on the map can be calculated and notified by the audio output means 33 and the display means 34.

  Here, with reference to FIG. 11 and FIG. 12, the algorithm of the road calculation by the distance calculation means 32 in the processing of steps S114 and 115 will be described in more detail. These examples show a very short one from the start point to the end point for convenience, and are obtained when the electronic pen 1A traces from the start point (Xs, Ys) to the end point (Xe, Ye) on the map area 100. The position coordinates indicating the coordinate data are indicated by black circles, and approximate lines interpolated by spline interpolation or Lagrange interpolation with respect to the traced line segment are respectively indicated by A (reference figure 11) and B (reference figure 12). And The center point of each minute region is indicated by a white circle.

  From the start point to the end point of the obtained coordinate data, a minute region through which the approximate lines A and B pass is extracted from the plurality of minute regions ΔxΔy. At this time, a minute region located diagonally is not selected. In the example of FIG. 11, since the approximate line A does not pass through the lattice points of the minute area, six (i = 0 to 5) minute areas are extracted. In the example of FIG. 12, the approximate line B that passes through the first three coordinate data from the start point (Xs, Ys) passes through the lattice points of the minute region, but the minute region to be extracted is the minute region i = 0. Without directly extracting the minute region i = 2 diagonally from the first region, the minute region i = 0, and then passing through the minute region i = 1 adjacent to the X direction, which has a larger displacement than the X direction and the Y direction. Then, the minute region i = 2 is extracted. As a result, the illustrated six (i = 0 to 5) minute regions are extracted by the approximate line B.

Next, the center points of two adjacent minute regions in the extracted minute regions are connected by a straight line, and the length of the straight line is corrected by the height information of the two adjacent minute regions. If the coordinates of the center point of two adjacent minute regions are (Xi, Yi), (Xi + 1, Yi + 1), the height information is uniquely determined as Zi, Zi + 1, respectively, and the three-dimensional coordinates of the two points are (Xi , Yi, Zi), (Xi + 1, Yi + 1, Zi + 1). Accordingly, when the distance between the center points of two adjacent minute regions is Δc (= Δx = Δy), the length of the straight line corrected by adding the height information according to the Pythagorean theorem is as follows.

And the length L of the handwriting corrected by the height information by adding the corrected straight line lengths is expressed by the following equation. However, the minute area at the start point is i = 0, and the minute area at the end point is i = imax.

By correcting this length L with the scale value c as in the following equation, the distance D on the ground surface corresponding to the handwriting on the map area is obtained.
D = L / c

  Since the electronic pen 1A captures the dot pattern 75 times per second and obtains the coordinate data (Xi, Yi), the obtained coordinates are continuous along the traced path, but the moving speed of the electronic pen 1A Is faster, the distance between the sampling points becomes longer. Therefore, smooth curve interpolation is preferable to reproduce the locus of the electronic pen 1A than linear interpolation between the sampling points.

  As described above, when the user traces the electronic pen 1A along the desired route on the map area 100, the electronic pen 1A calculates a plurality of position coordinates along the traced route. Based on the position coordinates, the distance (path) D on the ground surface in the route on the map can be notified by the audio output means 33 or the display means 34.

[Operational effects of the system using the terminal device of the first embodiment]
According to the map information providing system using the terminal device 3, when the user traces the map area 100 with the electronic pen 1A, the electronic pen 1A calculates the coordinates on the traced path at predetermined intervals, and The entry information 20 including the coordinates is generated, and the entry information 20 is transmitted to the terminal device 3 immediately and sequentially. The terminal device 3 receives the entry information 20 from the electronic pen 1A, determines a locus (handwriting) based on the coordinate data 23 of the entry information 20, and calculates the length L of the locus. The scale value c is referred to, and a distance (path) D on the ground surface is calculated. In this case, the distance calculating means 32 obtains an approximate line corresponding to a line segment traced by the electronic pen 1A based on the plurality of position coordinates calculated by the electronic pen 1A, and finely divides the map area 100. Is extracted from a plurality of micro regions each having height information, and the center points of two adjacent micro regions out of the extracted micro regions are connected by a straight line and adjacent to each other. By correcting the length of the straight line based on the height information of the two minute areas, and adding the corrected lengths of the straight lines, the distance (path) D on the ground surface corresponding to the handwriting on the map area 100 is calculated. To do. In addition, the distance calculation unit 32 informs the audio output unit 33 and the display unit 34 of the distance D.

  As described above, the terminal device 3 receives the entry information 20 including the coordinate data 23 calculated along the route traced by the electronic pen 1A, and thereby the trajectory (based on the coordinate data 23 of the entry information 20 ( The handwriting) is determined, and the terminal device 3 can calculate the length L of the locus (handwriting) and notify the user by voice or screen display. Thereby, even when there is a height difference from the starting point to the destination, the user can calculate the distance (path) of the highly accurate route reflecting the height information (altitude) by the system using this terminal device 3. It is easy to know, and even when there are a plurality of routes, knowing the route of each route helps to select the route.

Second Embodiment
Next, a second embodiment will be described. In the second embodiment, the electronic pen 1B (1) shown in FIG. 13 is used, and transmission in which a dot pattern associated with data transmission processing from the electronic pen 1B to the terminal device 3 shown in FIG. The dedicated paper 2B (2) having the area 110 is used. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  The difference between the second embodiment and the first embodiment is that, in the first embodiment, the electronic pen 1A immediately enters the entry information 20 while the user enters a route to the map area 100 with the electronic pen 1A. In contrast, in the second embodiment, while the user writes a route to the map area 100 with the electronic pen 1B, the electronic pen 1B follows the written route. The entry information 20 generated along the line is stored in the memory 19, and when the user completes the entry of the route, a check mark or a tap is entered in the transmission area 110 of the dedicated paper 2B with the electronic pen 1B. The entry information 20 is collectively transmitted from the electronic pen 1B to the terminal device 3, and the terminal device 3 calculates the path based on the entry information 20 transmitted together to obtain the path D. Therefore, the electronic pen 1B of the second embodiment includes a memory 19 for storing entry information 20 as shown in FIG.

  In the second embodiment, when the user traces the map area 100 of the dedicated paper 2B shown in FIG. 14, the electronic pen 1B reads the dot pattern along the traced path (handwriting) and sequentially calculates the coordinate data 23. Then, the entry information 20 including the coordinate data 23 is stored in the memory 19.

  The processor 11 of the electronic pen 1B stores in the memory 19 the data communication unit 12 in the memory 19 when the entry information 20 based on the handwriting in the transmission area 110 is obtained in the calculation of the coordinate data from the image data of the dot pattern. It has a function of sending the entered entry information 20 together to the terminal device 3. Therefore, when the user finishes entering the route to the map area 100 with the electronic pen 1B and touches the transmission area 110 with the electronic pen 1B, the electronic pen 1B transmits the entry information 20 stored in the memory 19 to the terminal device 3. To do.

  Then, the terminal device 3 reads and specifies the scale value of the map area 100 on the dedicated paper 2B from the information storage means 30 based on the dot pattern address 22 included in the entry information 20 received from the electronic pen 1B, and starts. By calculating the length L of the trajectory (handwriting) from the point 701 to the end point 703, the distance (path) D on the ground surface is calculated, and the distance D on the ground surface is notified by the audio output means 33 or the display means 34. To do.

[Distance calculation processing in map information provision system]
Next, distance calculation processing performed by the terminal device of the second embodiment will be described with reference to FIGS. 15 and 16. FIG. 15 is a diagram showing a dedicated paper 2B with handwriting traced with the electronic pen 1B. FIG. 16 is a flowchart of distance calculation in the electronic pen 1B.

  The user contacts (pens down) the starting point (contact start point) 701 on the map area 100 of the dedicated paper 2B with the pen tip 1a of the electronic pen 1B (see FIG. 15). Then, the electronic pen 1B detects contact with the map area 100 when the writing pressure detected by the pressure sensor 16 is equal to or higher than a predetermined value (step S101A), and the CMOS camera 15 irradiates infrared rays with the LED 14. The dot pattern is picked up by the processor 11, and the processor 11 calculates the coordinate data 23 and the dot pattern address 22 at the contact position to the map area 100 from the image data of the picked-up dot pattern (step S102A). Then, the processor 11 generates the entry information 20 in which the time information 21, the dot pattern address 22, the coordinate data 23, and the writing pressure data 24 indicating the current time transmitted by the clock 18 are associated (step S103A). The entry information 20 is stored in the memory 19 (step S104A).

  Next, when the user keeps tracing the route desired by the user in a state where the pen tip portion 1a of the electronic pen 1B is in contact with the map area 100, the electronic pen 1B displays the entry information 20 based on the handwriting in the transmission area 110. Since it is not acquired (step S105A; No), the process proceeds to step 102A, and coordinate data of each point (passing points 702A, 702B, 702C, 702D,...) Is continuously provided at a predetermined interval (for example, 75 times per second). 23 is calculated and entry information 20 is generated, and the entry information 20 is stored in the memory 19.

  When the user moves the electronic pen 1B away from the map area 100 at the end point 703 of the route and then touches the transmission area 110 with the electronic pen 1B (step S105A; Yes), the electronic pen 1B is held in the memory 19. The entry information 20 is collectively transmitted to the terminal device 3 (step S106A).

  The data communication means 31 in the terminal device 3 receives the entry information 20 transmitted by the electronic pen 1B, stores the entry information 20 in the information storage means 30, and transmits it to the distance calculation means 32 (step S111A). Based on a plurality of position coordinates calculated by the electronic pen 1A, an approximate line corresponding to a line segment traced by the electronic pen 1B is obtained by an interpolation function such as a spline function or a Lagrangian function (step S112A). At this time, in order to be able to interpolate discrete coordinate data, the coordinate data string is divided into sections so that at least the X coordinate monotonously increases or decreases, and an interpolation function is applied to each section. The approximate line may be an interpolation straight line connecting the position coordinate points of adjacent coordinate data with a straight line.

  Subsequently, the distance calculation means 32 is set from the information storage means 30 so as to finely divide the map area 100 from a plurality of minute regions each having height information (elevation data information scaled by the scale value c). The micro area through which the approximate line passes and its height information are extracted (step S113A), the center points of two adjacent micro areas in the extracted micro area are connected by a straight line, and the two adjacent micro areas have. The length L of the handwriting corrected by the height information is obtained by correcting the length of the straight line based on the height information and adding the corrected lengths of the straight lines. Further, the distance calculation means 32 reads the scale value c corresponding to the dot pattern address with reference to the scale information stored in the information storage means 30 based on the dot pattern address, and the handwriting length L and the scale value c. From the above, the distance (distance) D on the ground surface is calculated (step S114A).

  The calculation procedure of steps S113A and 114A is the same as the procedure described in steps S115 and S116 in the first embodiment. That is, from the information storage means 30, a minute area through which an approximate line passes from a plurality of minute areas that are set so as to finely divide the map area 100 and each have height information (elevation data information scaled by the scale value c). The height information is extracted (step S113A), the center points of two adjacent minute regions of the extracted minute regions are connected by a straight line, and the length of the straight line is determined by the height information of the two adjacent minute regions. The length L of the handwriting corrected by the height information is obtained by correcting the length and adding up the lengths of the corrected straight lines. Further, the distance calculation means 32 reads the scale value c corresponding to the dot pattern address with reference to the scale information stored in the information storage means 30 based on the dot pattern address, and the handwriting length L and the scale value c. From the above, the distance (distance) D on the ground surface is calculated (step S114A).

  Then, after calculating the distance (distance) D on the ground surface, the distance calculation means 32 supplies the sound output means 33 with the distance (distance) D on the ground surface from the contact start point 701 to the end point 703 determined by calculation. It is notified by voice or displayed on the display means 34 (step S115A). This completes the distance calculation.

[Operational effects of the system using the terminal device of the second embodiment]
According to the map information providing system using the terminal device 3, when the user traces the map area 100 with the electronic pen 1B, the electronic pen 1B calculates the coordinates on the traced path at predetermined intervals, and The entry information 20 including the coordinates is generated and stored in the memory 19. Then, when the user brings the electronic pen 1 </ b> B into contact with the transmission area 110, the electronic pen 1 </ b> B collectively transmits the entry information 20 to the terminal device 3. The terminal device 3 receives the entry information 20 from the electronic pen 1B, determines a locus (handwriting) based on the coordinate data 23 of the entry information 20, and calculates the length L of the locus, With reference to the scale value c, the distance (distance) D on the ground surface is calculated. In this case, the distance calculation means 32 obtains an approximate line corresponding to a line segment traced by the electronic pen 1A based on the plurality of position coordinates calculated by the electronic pen 1B, and finely divides the map area 100. Is extracted from a plurality of micro regions each having height information, and the center points of two adjacent micro regions out of the extracted micro regions are connected by a straight line and adjacent to each other. By correcting the length of the straight line based on the height information of the two minute areas, and adding the corrected lengths of the straight lines, the distance (path) D on the ground surface corresponding to the handwriting on the map area 100 is calculated. To do. In addition, the distance calculation means 32 informs the distance D by sound from the sound output means 33 or display by the display means 34.

  In this way, the terminal device 3 receives the entry information 20 including the coordinate data 23 calculated along the route traced by the electronic pen 1B, so that the trajectory (based on the coordinate data 23 of the entry information 20 ( The handwriting) is determined, and the terminal device 3 can calculate the length L of the locus (handwriting) and notify the user by voice or the like. Thereby, even when there is a height difference from the departure point to the destination, the user can easily know the distance of the highly accurate route reflecting the height information (altitude) by the system using the terminal device 3. In addition, even when there are a plurality of routes, knowing the distance of each route helps to select the route.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In the embodiment described above, the distance calculation means 32 refers to the scale information in order to trace the route to the map area 100 to obtain the distance (path) D on the surface of the earth. You may make it obtain | require the length of the surface on a solid object with reference to height information in drawings, such as a sketch which represents solid objects, such as a person and a sculpture.

  Further, in the example of FIG. 11 and FIG. 12 of the above embodiment, when the approximate line passes through the lattice point of the minute region, the minute region on the diagonal is not directly extracted. When selecting directly, it is preferable to calculate by replacing Δc in the above equation with √2 * Δc.

  In the above embodiment, the height information associated with the minute area is data obtained by reducing the altitude with the scale value c. However, the present invention is not limited to this, and the height information associated with the minute area is regarded as the altitude and L is obtained. At this time, Δc may be converted into a distance on the ground surface, and the calculation may be performed directly to obtain the distance (road) on the ground surface (D = L at this time).

  In the above embodiment, the distance calculation unit 32 acquires the scale information from the information storage unit 30 prior to the calculation of the length L of the trajectory (handwriting), but after calculating the length L of the trajectory. Scale information may be acquired.

  In the above embodiment, if the coordinate data 23 included in the entry information 20 received by the data communication unit 31 is the same continuously, the second and subsequent entry information 20 among the entry information 20 of the same coordinate data 23. May not be stored in the information storage means 30, and the distance calculation means 32 may not be added to the calculation of the length of the trajectory. Thereby, the processing burden of the terminal device 3 can be reduced. Similarly, in the electronic pen 1B of the second embodiment, if the coordinate data included in the acquired entry information 20 is continuously the same, the second and subsequent pieces of entry information 20 of the same coordinate data 23 are the same. The entry information 20 may not be stored in the memory 19.

  In the above embodiment, the electronic pen 1 having the ink cartridge 17 is used. However, a pen-type scanner without an ink cartridge may be used. At this time, the pressure sensor 16 may be configured to detect contact / non-contact with the dedicated paper 2.

  Further, property information (pen information or pen owner information) relating to the pen itself or its owner may be held in the electronic pen 1 so that it can be referred to from the terminal device 3 or property information. May be transmitted to the terminal device 3 together with the entry information. The pen information includes battery level, pen ID, pen manufacturer number, pen software version, subscription provider ID, free memory capacity, and the like. The pen owner information includes nationality, language, time zone, e-mail address, name, address, fax / phone number, mobile phone number, and the like.

  In the above embodiment, the dot is ink containing carbon that absorbs infrared rays, and the LED 14 of the electronic pen 1 is an LED that irradiates infrared rays. The pattern is read, but not limited to this. For example, the dot is ink that emits light of a predetermined wavelength by light of a predetermined wavelength, the LED 14 of the electronic pen 1 is irradiated with light that emits light of the dot ink, and the wavelength region in which the dot ink is emitted by the CMOS camera 15 By detecting the dot pattern, the electronic pen 1 may read the dot pattern. If the dot pattern can be read by the CMOS camera 15, the ink type of the dot, the irradiation light of the LED 14 and the like are those shown in the above embodiment. Not limited to. Further, as long as the position coordinates on the dedicated paper 2 can be specified, another coded pattern such as a two-dimensional code pattern may be used instead of the dot pattern.

  The present invention provides a map for mountain climbing, a map application such as a town map, an architectural application such as a architectural sketch, a design drawing, a maze quiz for competing for the shortest distance of the route traced to the goal, and the like. Can be applied.

It is a system configuration figure using the terminal unit concerning a 1st embodiment. It is a top view which shows an example of the exclusive paper used in 1st Embodiment. It is explanatory drawing of the expression method of the information by the dot pattern printed on the exclusive paper. It is a figure for demonstrating the expression method of the information by the dot pattern printed on the exclusive paper. It is explanatory drawing which shows typically the electronic pen used in 1st Embodiment. It is a conceptual diagram which shows the structure of entry information. It is a functional block diagram of the terminal device used by 1st Embodiment. It is a module block diagram of the exclusive application in 1st Embodiment. It is a figure which shows the exclusive paper of FIG. 2 with the handwriting traced with the electronic pen. It is a flowchart of the distance calculation in 1st Embodiment. It is a graph for demonstrating the algorithm of the path | route calculation by the distance calculating means in the process of step S115 of the flowchart shown in FIG. It is a graph for demonstrating the algorithm of the path | route calculation by the distance calculating means in the process of step S115 of the flowchart shown in FIG. It is explanatory drawing which shows typically the electronic pen used in 2nd Embodiment. It is a top view which shows an example of the exclusive paper used in 2nd Embodiment. It is a figure which shows the exclusive paper of FIG. 14 with the handwriting traced with the electronic pen. It is a flowchart of the distance calculation in 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1A, 1B ... Electronic pen, 1a ... Pen tip part, 11 ... Processor, 12 ... Data communication unit, 13 ... Battery, 14 ... LED, 15 ... CMOS camera, 16 ... Pressure sensor, 17 ... Ink cartridge, 18 ... Clock, 19 ... Memory, 2, 2A, 2B ... Dedicated paper (medium), 20 ... Entry information, 21 ... Time information, 22 ... Dot pattern address, 23 ... Coordinate data, 24 ... Pen pressure data, 3 ... Terminal device, DESCRIPTION OF SYMBOLS 30 ... Information storage means, 31 ... Data communication means, 32 ... Distance calculation means, 33 ... Audio | voice output means (notification means), 34 ... Display means (notification means), 4 ... Dedicated application, 41 ... Data communication module, 42 ... Information storage module, 43 ... distance calculation module, 100 ... map area, 110 ... transmission area, 701 ... contact start point, 702A, 702B, 02C, 702D ... passing point, 703 ... end point.

Claims (5)

A terminal device that receives discrete coordinate data calculated by reading a coded pattern printed on a medium from an electronic pen or a scanner, and calculates a distance according to the length of the handwriting from the coordinate data,
Data communication means for receiving coordinate data;
An approximation corresponding to a line segment when the electronic pen or scanner traces based on a plurality of position coordinates of the coordinate data received by the data communication means and calculated by the electronic pen or the scanner along the handwriting. A line is obtained, and a minute area through which an approximate line passes is extracted from a plurality of minute areas each set to finely divide the medium and each has height information, and the center of two adjacent minute areas among the extracted minute areas Distance calculation that connects points with a straight line, corrects the length of the straight line based on the height information of the two adjacent minute regions, and calculates the distance according to the handwriting by adding the corrected straight line lengths A terminal device. A path indicated by handwriting on the map area from the coordinate data received from the electronic pen or scanner by reading the coded pattern of the medium on which the map area and the coded pattern are printed. A terminal device for calculating a distance on the ground surface corresponding to
Data communication means for receiving coordinate data;
An approximation corresponding to a line segment when the electronic pen or scanner traces based on a plurality of position coordinates of the coordinate data received by the data communication means and calculated by the electronic pen or the scanner along the handwriting. A line is obtained, and a map area is set so as to be divided finely, and a minute area through which an approximate line passes is extracted from a plurality of minute areas each having height information, and two adjacent minute areas of the extracted minute areas are extracted. Corresponding to the handwriting on the map area by connecting the center points with a straight line, correcting the length of the straight line based on the height information of two adjacent minute regions, and adding the corrected straight line lengths A terminal device comprising distance calculating means for calculating a distance on the ground surface. The terminal device according to claim 1, further comprising a notifying unit that notifies the distance calculated by the distance calculating unit. A program executed by a computer that receives discrete coordinate data calculated by reading a coded pattern printed on a medium from an electronic pen or scanner and calculates a distance corresponding to the length of the handwriting from the coordinate data. There,
Data communication means for receiving coordinate data;
An approximation corresponding to a line segment when the electronic pen or scanner traces based on a plurality of position coordinates of the coordinate data received by the data communication means and calculated by the electronic pen or the scanner along the handwriting. A line is obtained, and a minute area through which an approximate line passes is extracted from a plurality of minute areas each set to finely divide the medium and each has height information, and the center of two adjacent minute areas among the extracted minute areas Distance calculation that connects points with a straight line, corrects the length of the straight line based on the height information of the two adjacent minute regions, and calculates the distance according to the handwriting by adding the corrected straight line lengths A program for causing the computer to function as means. A path indicated by handwriting on the map area from the coordinate data received from the electronic pen or scanner by reading the coded pattern of the medium on which the map area and the coded pattern are printed. Is a program executed by a computer that calculates the distance on the surface corresponding to
Data communication means for receiving coordinate data;
Based on a plurality of position coordinates of the coordinate data received by the data communication means and calculated by the electronic pen or the scanner along the handwriting, an approximate line corresponding to a line segment when the electronic pen traces is obtained. Find a small area through which an approximate line passes from a plurality of minute areas that are set to finely divide the map area and each have height information, and the center point of two adjacent minute areas of the extracted minute areas On the ground surface corresponding to the handwriting on the map area by connecting the lines with straight lines, correcting the length of the straight lines based on the height information of the two adjacent minute areas, and adding the corrected lengths of the straight lines A program for causing the computer to function as a distance calculation means for calculating the distance.

Images