JP2007029235A - Movable body system and program for movable body system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skateboard system capable of achieving a game interlocking with a real skateboard in a virtual space. <P>SOLUTION: The speed and direction of movement of the real skateboard 12 are detected and transmitted by radio to a PDA 14. The PDA 14 forms the virtual space in which virtual obstacles are arranged. A player 18 puts on a headphone 16, and rides on the skateboard 12 carrying the PDA 14. The sound of the obstacles is heard through the headphone 16, and is heard in the direction of the virtual obstacles with the volume of the sound proportionate to the distance from the skateboard 12 to the respective obstacles in the virtual space. Accordingly, the player 18 can audibly recognize the positions of the obstacles, and can enjoy a slalom game for skateboarding while avoiding the obstacles. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile system and a program for the mobile system. More specifically, the present invention relates to a mobile system and a program for the mobile system that realize a game linked to an actual mobile body in a virtual space.

  A skateboard is a sporting equipment with wheels attached to a board on which a player rides, and it can easily slide on the road surface, so it is especially popular among young people. Skateboard players are not interesting just by sliding, so they play while listening to music with headphones stereo, or playing slalom with pylons arranged at equal intervals.

  However, there is no correlation between music and the running state, just skateboarding while listening to music. In addition, in order to play slalom, you must actually prepare pylons and secure a large space necessary to line them up.

  Japanese Laid-Open Patent Publication No. 9-234289 (Patent Document 1) discloses an automobile game apparatus installed in an amusement park or the like. In this device, a player rides in a small car for play and competes to travel along a prescribed route while hitting the car. A light source is embedded in the road surface, light from the light source is detected by a sensor attached to the lower surface of the automobile, and the number of times is counted.

  However, in this apparatus, since the light source is embedded in the road surface, the automobile can run only on a dedicated course. Moreover, since it is difficult to change the position of the light source, it is easy to get bored.

  Japanese Laid-Open Patent Publication No. 2002-95856 (Patent Document 2) discloses a game system such as orienteering using a real motorcycle. In this system, a predetermined point is assigned to an area that actually exists, and when the motorcycle enters the area, the predetermined point is added or subtracted.

  However, in this system, the area is limited to what is actually present, and it is only a common thing to compete for scores, so it is also not interesting.

In addition, this applicant has proposed the skateboard which changes music according to an external condition in Japanese Patent Application No. 2004-15201 (related application 1). Further, the present applicant has proposed a skateboard that changes music in accordance with the exercise state in Japanese Patent Application No. 2004-15202 (Related Application 2). Furthermore, the present applicant has proposed a skateboard in which a pair of speakers are attached to a board in Japanese Patent Application No. 2004-15203 (Related Application 3).
JP 9-234289 A JP 2002-95865 A

[Related Application 1] Japanese Patent Application No. 2004-15201 [Related Application 2] Japanese Patent Application No. 2004-15202 [Related Application 3] Japanese Patent Application No. 2004-15203

  An object of the present invention is to provide a moving body system and a moving body system program capable of realizing a game linked to an actual moving body in a virtual space.

Means for Solving the Problems and Effects of the Invention

  The mobile system according to the present invention includes position detection means, storage means, and information presentation means. The position detecting means detects the position of the moving body. The storage means stores a predetermined position. The information presenting means presents positional information regarding the position of the moving body detected by the position detecting means and the predetermined position stored in the storage means to the player. Here, the moving body can be steered according to the player's weight shift, and includes, for example, a skateboard, a snowboard, a kickboard, skiing, a Segway (registered trademark), and a motorcycle. The predetermined position is, for example, a position of a virtual obstacle, an item, etc., and a desired position may be input and registered in advance according to the player's operation, or a random position is automatically generated. It may be registered in advance. The positional relationship information may be perceived by the player using auditory information such as an obstacle sound, item sound, music, or voice, or may be perceived by the player using visual information such as a screen or a stereoscopic image.

  According to this moving body system, the positional relationship information regarding the position of the actual moving body and a predetermined position in the virtual space is presented to the player, so that a game linked to the actual moving body can be realized in the virtual space. it can.

  Preferably, the position detecting means includes a speed detecting means, a moving direction detecting means, and a position determining means. The speed detection means detects the speed of the moving body. The moving direction detection means detects the moving direction of the moving body. The position determining means determines the position of the moving body based on the speed of the moving body detected by the speed detecting means and the moving direction of the moving body detected by the moving direction detecting means.

  In this case, the position of the moving body is determined based on the detected speed and moving direction of the moving body.

  Preferably, the information presenting means includes a sound volume determining means, a direction determining means, a sound signal output means, and a speaker. The sound volume determining means determines the sound volume according to the distance between the position of the moving body detected by the position detecting means and the predetermined position stored in the storage means. The direction determining unit determines a direction from the position of the moving body detected by the position detecting unit to a predetermined position stored in the storage unit. The sound signal output means outputs a predetermined sound signal so that the sound source is localized in the sound volume determined by the sound volume determining means and in the direction determined by the direction determining means. The speaker generates sound based on the sound signal output from the sound signal output means.

  In this case, the sound is generated with a smaller volume as the predetermined position is farther from the position of the moving body, and with a larger volume as it is closer, and the sound source is localized in the direction from the position of the moving body to the predetermined position. The player can recognize the positional information by hearing.

  Preferably, the speed detecting means and the moving direction detecting means are attached to the moving body. The mobile system further includes a wireless transmitter, a portable information terminal, and headphones. The wireless transmitter is attached to the moving body, and transmits the speed of the moving body detected by the speed detecting means and the moving direction of the moving body detected by the moving direction detecting means. The portable information terminal is attached to the player. The headphones are connected to the portable information terminal. The storage means, the sound volume determination means, and the direction determination means are included in the portable information terminal. The portable information terminal includes a wireless receiver that receives the speed and moving direction of the moving body transmitted from the wireless transmitter. The speaker is included in the headphones. Here, the portable information terminal includes, for example, a PDA (Personal Digital Assistance), a portable music player, a cellular phone, and the like. The headphone includes not only a headphone in a narrow sense that is put on the head with a band or the like, but also an earphone that is inserted into or put on both ears.

  In this case, since the speed and moving direction of the moving body are wirelessly transmitted from the moving body to the portable information terminal, the player can freely operate the moving body by attaching headphones and the portable information terminal to the body.

  Preferably, the mobile body system further includes contact determination means for determining whether or not the position of the mobile body detected by the position detection means matches a predetermined position stored in the storage means. The sound signal output means outputs a predetermined sound effect signal when it is determined by the contact determination means that the position of the moving body matches the predetermined position.

  In this case, when the moving body contacts an object (for example, a virtual obstacle, an item, etc.) at a predetermined position in the virtual space, the player hears a predetermined sound effect (for example, a collision sound, an item acquisition sound, etc.), and thereby Can recognize contact.

  Preferably, the moving body system further includes movement determining means for determining whether or not the moving body is moving based on the speed of the moving body detected by the speed detecting means. The sound signal output means outputs a predetermined music signal when the movement determining means determines that the moving body is moving. The mobile body system further includes music stop means for stopping the output of the music signal by the sound signal output means when the contact determination means determines that the position of the mobile body matches the predetermined position.

  In this case, music starts to flow when the player moves the moving body, and the music stops when the moving body is brought into contact with an object at a predetermined position. Therefore, the player can enjoy the game while listening to music linked to the actual moving body.

  Preferably, the moving body system further includes movement determining means for determining whether or not the moving body is moving based on the speed of the moving body detected by the speed detecting means. The sound signal output means outputs a predetermined music signal when the movement determining means determines that the moving body is moving. The mobile system further includes music changing means for changing the music of the music signal to be output from the sound signal output means when it is determined by the contact determination means that the position of the mobile body matches the predetermined position.

  In this case, music starts to flow when the player moves the moving body, and the music changes when the moving body is brought into contact with an object at a predetermined position. Therefore, the player can enjoy the game while listening to music linked to the actual moving body.

  A program for a moving body system according to the present invention includes a step of determining a volume according to a distance between a position of a moving body that can be steered according to a weight shift of a player and a predetermined position stored in a storage means, Determining a direction from the position of the body to the predetermined position, outputting a predetermined sound signal so that the sound source is localized at the determined volume and in the determined direction, and the position of the moving body and the predetermined position The computer is caused to execute a step of determining whether or not the position matches, and a step of outputting a predetermined sound effect signal when it is determined that the position of the moving body matches the predetermined position.

  According to the mobile system program, a sound is generated with a lower volume as the predetermined position is farther from the position of the mobile body, and with a higher volume as the position is closer, and the sound source is moved from the position of the mobile body to the predetermined position. The player can recognize the positional relationship information by hearing. Further, when the moving body comes into contact with an object at a predetermined position in the virtual space, the player can hear a predetermined sound effect and thereby recognize the contact. Therefore, a game linked to an actual moving body can be realized in a virtual space.

  Preferably, the mobile system program further includes a step of determining whether the mobile body is moving based on the speed of the mobile body, and a predetermined music signal when the mobile body is determined to be moving. And causing the computer to execute an output step and a step of stopping the output of the music signal when it is determined that the position of the moving body matches the predetermined position.

  In this case, music starts to flow when the player moves the moving body, and the music stops when the moving body is brought into contact with an object at a predetermined position. Therefore, the player can enjoy the game while listening to music linked to the actual moving body.

  Preferably, the mobile system program further includes a step of determining whether the mobile body is moving based on the speed of the mobile body, and a predetermined music signal when the mobile body is determined to be moving. And causing the computer to execute an output step and a step of changing the music of the music signal to be output when it is determined that the position of the moving body matches the predetermined position.

  In this case, music starts to flow when the player moves the moving body, and the music changes when the moving body is brought into contact with an object at a predetermined position. Therefore, the player can enjoy the game while listening to music linked to the actual moving body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  Referring to FIG. 1, a skateboard system 10 according to an embodiment of the present invention includes a skateboard 12, a PDA (Personal Digital Assistance) 14, and stereo headphones 16. The player 18 wears the headphones 16 and rides on the skateboard 12 while listening to music transmitted from the PDA 14.

  Referring to FIG. 2, the skateboard 12 includes an oval board 20 and wheels 22 and 24 attached to the front and rear thereof. The skateboard 12 has a power source and can be self-propelled. Specifically, the motors 26 and 28 are built in the front and rear wheels 22 and 24. When the motors 26 and 28 are driven by the motor drivers 30 and 32, the front and rear wheels 22 and 24 rotate, and the skateboards. 12 is self-propelled. The detailed structure is disclosed in Japanese Patent Application Nos. 2004-15201, 2004-15202, and 2004-15203, the disclosure of which is incorporated herein.

  The skateboard 12 includes a master MCU (Motor Control Unit) 34 that controls the motor 28 in the rear wheel 24, and a slave MCU 36 that controls the motor 26 in the front wheel 22. The master MCU 34 includes a CPU (Central Processing Unit) 38, a motor driver 32 that drives the motor 28 in the rear wheel 24, and a current sensor 40 that detects a current supplied to the motor 28 in the rear wheel 24. The slave MCU 36 includes a CPU 42, a motor driver 30 that drives the motor 26 in the front wheel 22, and a current sensor 44 that detects a current supplied to the motor 26 in the front wheel 22. The slave MCU 36 is connected to the master MCU 34 via a CAN (Controller Area Network) bus 46.

  The skateboard 12 further includes a steering sensor 48 that detects the steering angle of the front wheel 22, a load sensor 50 that detects a load applied to the front wheel 22, a steering sensor 52 that detects the steering angle of the rear wheel 24, and the rear wheel 24. A load sensor 54 for detecting the load. The steering sensors 48 and 52 and the load sensors 50 and 54 are all connected to the master MCU 34, and the master MCU 34 receives the steering angle detected by the steering sensors 48 and 52 and the load detected by the load sensors 50 and 54.

  The skateboard 12 further includes an encoder 56 that detects the number of rotations of the rear wheel 24 and a wireless transmitter 58 that uses short-range wireless communication (such as Bluetooth (registered trademark)). The encoder 56 is also connected to the master MCU 34, and the master MCU 34 receives the rotational speed of the rear wheel 24 detected by the encoder 56, and calculates the speed of the skateboard 12 based on this. The wireless transmitter 58 is also connected to the master MC 34, and the master MCU 34 transmits data signals such as steering angle, load, and speed to the PDA 14 by the wireless transmitter 58. The data signal transmission cycle is, for example, 1 to 100 milliseconds.

  Referring to FIG. 3, the PDA 14 includes a CPU 60, a memory 62 such as a RAM (Random Accesses Memory), a ROM (Read Only Memory), and a hard disk, a wireless receiver 64 paired with a wireless transmitter 58, an LCD ( A display 66 such as a liquid crystal display), a touch panel 68 that receives an input in accordance with the operation of the player, and an audio output circuit 70 are provided.

  The wireless receiver 64 receives data signals such as steering angle, load, and speed transmitted from the wireless transmitter 58. The headphones 16 are connected to a sound output circuit 70 and generate various sounds such as sound, music, and sound effects based on sound signals.

  Next, an operation method and operation of the skateboard system 10 will be described.

(1) Slalom Game First, the case of playing a slalom game as shown in FIG. 4 using the skateboard system 10 will be described.

  The PDA 14 forms a virtual space corresponding to the real space. Specifically, as shown in FIG. 5, the PDA 14 has a total of nine cells S (x, y) (x = 1 to 3, y = 1 to 3) in 3 rows and 3 columns on the display 66, and a virtual A skateboard 72 is displayed.

  The PDA 14 arranges a plurality of virtual obstacles 74 in the virtual space. The virtual obstacle 74 exists only in the virtual space, and does not exist in the real space. A part of the arranged virtual obstacles 74 is displayed in the cell S (x, y). When the actual skateboard 12 travels, the screen of the cell S (x, y) scrolls downward, thereby representing the virtual skateboard 72 traveling. Further, when the actual skateboard 12 bends left and right, the virtual skateboard 72 moves left and right.

  The player 18 rides the actual skateboard 12, operates the virtual skateboard 72, and runs while avoiding the virtual obstacle 74. When the virtual skateboard 72 contacts the virtual obstacle 74, the game ends. When the vehicle can travel to the end without touching the virtual obstacle 74, a score is given according to the required time.

  In order to realize such a slalom game, a skateboard system program as shown in FIG. 6 is installed in the PDA 14. Specifically, the skateboard system program is recorded in the memory 62, and the CPU 60 executes predetermined information processing according to the skateboard system program.

  Referring to FIG. 6, the PDA 14 first executes an operation check process for checking the movement of the skateboard (S1), and then executes a sound output process for outputting a sound according to the check result (S2). The PDA 14 repeats the operation check process and the sound output process every time a predetermined time (for example, 50 milliseconds) elapses after the sound output process ends (S3). Details of the operation check process are shown in FIG. 7, and details of the sound output process are shown in FIG.

  Referring to FIG. 7, the PDA 14 determines whether the skateboard 12 is moving or stopped based on the actual speed of the skateboard 12 received by the wireless receiver 64 (S101). When the skateboard 12 is moving (moving in S101), the PDA 14 sets a moving flag (S102). The movement flag indicates whether or not the skateboard 12 is moving.

  On the other hand, when the skateboard 12 is stopped (stopped at S101), the PDA 14 determines whether or not the movement flag is set, that is, whether or not the skateboard 12 has moved at the previous determination in step S101. (S103). If the skateboard 12 has been moved at the time of the previous determination (moved in S103), the PDA 14 resets the movement flag (S104) and sets the end sound flag (S105). The end sound flag indicates whether or not a game end sound should be output. After setting the end sound flag, the PDA 14 ends the operation check process (S1). On the other hand, if the skateboard 12 has already stopped at the time of the previous determination (stopped in S103), the PDA 14 skips steps S104 and S105 and ends the operation check process (S1).

  After setting the movement flag in step S102, the PDA 14 sets a BGM (Background Music) flag (S106). The BGM flag indicates whether BGM should be output.

  The PDA 14 compares the received speed of the skateboard 12 with a predetermined speed α (S107). When the speed of the skateboard 12 is equal to or higher than the predetermined speed α (YES in S107), the PDA 14 sets the speed of the virtual skateboard 72 to “high speed” (S108). If the speed of the skateboard 12 is less than the predetermined speed α (NO in S107), the PDA 14 sets the speed of the virtual skateboard 72 to “low speed” (S109).

  The PDA 14 advances the virtual skateboard 72 according to the set speed (S110). Actually, the screen of the cell is scrolled downward, and the virtual skateboard 72 is thus expressed as being advanced. When “high speed” is set, the screen is scrolled at high speed, and when “low speed” is set, the screen is scrolled at low speed.

  The memory 62 stores position information of the virtual obstacle 74 as shown in FIG. The position information of the virtual obstacle 74 is registered by the PDA 14 automatically generating and registering random position information, or receiving the input of desired position information according to the operation of the player 18. Of the virtual obstacles 74 registered in the memory 62, only those in the nine cells S (x, y) are displayed on the display 66. The display object changes in units of one line according to the set speed. The time interval at which the display target changes is longer when set to “low speed” than when set to “high speed”.

  The PDA 14 also determines whether the skateboard 12 is turning right, turning left, or going straight based on the actual steering angle of the skateboard 12 received by the wireless receiver 64 (S111). If it is determined that the vehicle is turning right (right in S111), the PDA 14 moves the virtual skateboard 72 to the right (S112). If it is determined that the vehicle is turning left (left in S111), the PDA 14 moves the virtual skateboard 72 to the left (S113). If it is determined that the vehicle is going straight (S111 is straight), the PDA 14 maintains the current position without moving the virtual skateboard 72 to the left or right (S114).

  Then, the PDA 14 determines whether or not the position of the virtual skateboard 72 matches the position of the virtual obstacle 74, that is, whether or not the virtual skateboard 72 is in contact with the virtual obstacle 74 (S115). If they match (YES in S115), the PDA 14 sets a collision sound flag (S116) and ends the operation check process (S1). The collision sound flag indicates whether or not a collision sound should be output. On the other hand, if they do not match (NO in S115), the PDA 14 skips step S116 and ends the operation check process (S1).

  After the operation check process (S1) ends, the PDA 14 starts the sound output process (S2) shown in FIG. Referring to FIG. 8, the PDA 14 determines whether or not the BGM flag is set, that is, whether or not the game is in progress (S201). The BGM flag is set while the real skateboard 12 is moving (S106), and is reset when the real skateboard 12 stops or when the virtual skateboard 72 contacts the virtual obstacle 74 (S204). , S208).

  When the BGM flag is reset (reset in S201), the PDA 14 outputs a standby sound (S202). Specifically, the PDA 14 transmits a standby sound signal to the headphones 16, and the headphones 16 generate a standby sound. The player 18 can recognize that the game has not started yet by listening to the standby sound.

  On the other hand, when the BGM flag is set (set in S201), the PDA 14 determines whether or not the end sound flag is set, that is, whether or not the game is ended (S203). The end sound flag is set when the actual skateboard 12 stops (S105), and is reset after the end sound is output (S207).

  If the end sound flag is set (set in S203), the PDA 14 resets the BGM flag (S204), ends the BGM output (S205), and instead outputs the end sound from the headphones 16 (S206). Then, the end sound flag is reset (S207). The player 18 can recognize that the game has ended by listening to the end sound.

  On the other hand, if the end sound flag is reset (reset in S203), the PDA 14 determines whether or not the collision sound flag is set (S208). The collision sound flag is set when the virtual skateboard 72 contacts the virtual obstacle 74 (S119), and is reset after the output of the collision sound is completed (S212).

  If the collision sound flag is set (set in S208), the PDA 14 resets the BGM flag (S209), ends the BGM output (S210), and instead outputs a collision sound from the headphones 16 (S211). The collision sound flag is reset (S212). The player 18 can recognize that the virtual skateboard 72 has contacted the virtual obstacle 74 by listening to the collision sound.

  On the other hand, when the collision sound flag is reset (reset in S208), the PDA 14 outputs BGM (S213). If the BGM has already been output, the output is continued. If the BGM has not been output yet, the output is started. The player 18 can recognize that the game is in progress by listening to the BGM.

  The PDA 14 also determines the volume and direction of the obstacle sound (S214). The obstacle sound is a sound emitted from the virtual obstacle 74 to the virtual space. The volume of the obstacle sound is determined according to the row of the grid where the virtual obstacle 74 is located. Specifically, when the virtual obstacle 74 is in the cells S (1, 1) to S (1, 3) in a row far from the virtual skateboard 72, the volume is set to “small”. When the virtual obstacle 74 is in the cells S (2, 1) to S (2, 3) in the center row, the volume is set to “medium”. When the virtual obstacle 74 is in the cells S (3, 1) to S (3, 3) in a row close to the virtual skateboard 72, the volume is set to “high”. The direction of the obstacle sound is determined according to the cell array where the virtual obstacle 74 is located. Specifically, the direction is set to “right” when the virtual obstacle 74 is in the cells S (1,3) to S (3,3) in the right column. When the virtual obstacle 74 is in the cells S (1,2) to S (3,2) in the center row, the direction is set to “center”. When the virtual obstacle 74 is in the cells S (1,1) to S (3,1) in the left column, the direction is set to “left”. For example, as shown in FIG. 5, when the virtual skateboard 72 is in the center and the virtual obstacle 74 is in the grid (2, 3), the volume is set to “medium” and the direction is set to “right”. .

  Then, the PDA 14 outputs an obstacle sound from the headphones 16 with the set volume and direction (S215). For example, as shown in FIG. 5, when the virtual skateboard 72 is in the center and the virtual obstacle 74 is in the grid (2, 3), the right speaker is larger than the left speaker of the headphones 16, and the whole As a result, an obstacle sound is output at a medium volume. The player 18 can recognize the position of the virtual obstacle 74, that is, the distance and direction by listening to such an obstacle sound.

(2) BGM Changer Game Next, a case of playing a BGM changer game as shown in FIG. 10 using the skateboard system 10 will be described.

  The PDA 14 arranges the item 76 in the virtual space instead of the virtual obstacle 74 in the slalom game. As with the above-mentioned slalom game, when the player 18 starts running on the skateboard 12, the BGM starts to output from the headphones 16. In addition, item sounds are output from the headphones 16 instead of the obstacle sounds in the slalom game. The item sound is a sound emitted from the item 76 to the virtual space. The player 18 can recognize the position of the item 76 by listening to the item sound. The player 18 rides on the skateboard 12 and controls the virtual skateboard 72, but does not avoid the item 76 but runs while acquiring it. When the virtual skateboard 72 contacts the item 76, the BGM is changed and a predetermined score is added. The game ends when the skateboard 12 stops or when a predetermined time has elapsed. And a score is given according to the kind and / or number of items that can be acquired by the end of the game.

  Similar to the above-described slalom game, the PDA 14 performs an operation check process (S1) and a sound output process (S2) as shown in FIG. 6, and repeats these processes every time a predetermined time elapses (S3). However, details of the operation check process in the BGM changer game are shown in FIG. 11, and details of the sound output process are shown in FIG.

  Since steps S101 to S114 shown in FIG. 11 are the same as those shown in FIG. 7, the description thereof will not be repeated. After executing the steering process (S111 to S114) of the virtual skateboard 72, the PDA 14 determines whether or not the position of the virtual skateboard 72 matches the position of the item 76, that is, the virtual skateboard 72 contacts the item 76. It is determined whether or not there is (S121). If they match (YES in S121), the PDA 14 sets an item acquisition sound flag (S122), and ends the operation check process (S1). The item acquisition sound flag indicates whether or not an item acquisition sound should be output. The item acquisition sound is a sound emitted when an item is acquired. On the other hand, if they do not match (NO in S121), the PDA 14 skips step S121 and ends the operation check process (S1).

  Since steps S201 to S207 shown in FIG. 12 are the same as those shown in FIG. 8, the description thereof will not be repeated. Here, steps S208 to S212 shown in FIG. 8 do not exist. Here, when the end sound flag is reset (reset in S203), the PDA 14 outputs BGM (S213).

  After outputting the BGM, the PDA 14 determines the volume and direction of the item sound (S221). The volume and direction of the item sound are determined by the same method as the volume and direction of the obstacle sound in the slalom game. The PDA 14 outputs the item sound from the headphones 16 with the set volume and direction (S222).

  Subsequently, the PDA 14 determines whether or not the item acquisition flag is set (S223). The item acquisition flag is set when the virtual skateboard 72 touches the item 76 (S122), and is reset after the output of the item acquisition sound is completed (S225).

  When the item acquisition sound flag is set (set in S223), the PDA 14 outputs the item acquisition sound from the headphones 16 (S224), and resets the item acquisition sound flag (S225). The player 18 can recognize that the item 76 has been acquired by listening to the item acquisition sound. Then, the PDA 14 changes the BGM being output (S226), and ends the sound output process (S2). As shown in FIG. 13, a plurality of BGM data BGM01 to BGM10 are stored in the memory 62, and the PDA 14 sequentially selects the BGM data BGM01 to BGM10 every time the item 76 is acquired. After selecting the last BGM data BGM10, the first BGM data BGM01 is selected again, and this is repeated thereafter.

  On the other hand, when the item acquisition sound flag is reset (reset in S223), the PDA 14 skips steps S224 to S226 and ends the sound output process (S2).

  As described above, according to this embodiment, the player can recognize the positional relationship between the actual position of the skateboard 12 and the position of the virtual obstacle 74 or the item 76 by the obstacle sound or the item sound. Therefore, a virtual reality game linked to the actual skateboard 12 can be enjoyed.

  Further, since the speed and moving direction of the skateboard 12 are wirelessly transmitted from the skateboard 12 to the PDA 14, the player 18 can freely operate the skateboard 12 by wearing the headphones 16 and the PDA 14.

  Further, when the virtual skateboard 72 comes into contact with the virtual obstacle 74 or the item 76, the player 18 can hear the collision sound or the item acquisition sound and thereby recognize the contact.

  In addition, a dedicated course is unnecessary, and a desired course can be freely set anywhere, so that an interesting and timeless game can be realized.

  When playing the slalom game, BGM starts to flow when the player 18 moves the skateboard 12, and stops when the virtual skateboard 72 is brought into contact with the virtual obstacle 74. Therefore, the player 18 can enjoy the slalom game while listening to the BGM linked to the actual skateboard 12. Moreover, it is not necessary to prepare an actual obstacle such as a pylon, and thus it is not necessary to secure a large area.

  When playing the BGM changer game, BGM starts to flow when the player 18 moves the skateboard 12, and when the virtual skateboard 72 is brought into contact with the item 76, the BGM changes. Therefore, the player 18 can enjoy the BGM changer game while listening to the BGM linked to the actual skateboard 12.

  In the above embodiment, the virtual skateboard 72 is moved left and right, and the screen is scrolled to express the travel of the virtual skateboard 72. However, all virtual obstacles 74 or items 76 are displayed on the display 66. The traveling of the virtual skateboard 72 may be expressed by fixing the screen without scrolling and moving the virtual skateboard 72 back and forth and right and left.

  In the above embodiment, only three columns of virtual obstacles 74 are displayed, but more columns may be displayed or only a part of the columns may be displayed when there are many columns. Good. Further, although the screen is scrolled in units of one line, it may be continuously scrolled at a speed proportional to the speed of the skateboard 12.

  Further, sound effects such as obstacle sounds are used to inform the player 18 of the position of the virtual obstacle 74 and the like, but BGM may be used instead. In this case, the volume of the BGM may be proportional to the distance from the virtual skateboard 72 to the virtual obstacle 74, and the BGM may be heard from a certain direction such as the virtual obstacle 74.

  The headphones 16 may be connected to the PDA 14 wirelessly instead of wired. Further, speakers may be attached to the left and right sides of the skateboard 12 instead of the headphones 16.

  In the above embodiment, the player 18 is audibly informed of the positional relationship between the actual skateboard 12 and the virtual obstacle 74 with an obstacle sound or the like, but instead of or together with this, the head A mount display or the like may be attached to the player 18 to visually notify the positional relationship.

  In the above embodiment, the skateboard 12 having a power source is used. However, a normal skateboard having no power source may be used. Further, instead of a skateboard, a snowboard, kickboard, ski, Segway (registered trademark), or the like may be used.

  While the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying the above-described embodiment without departing from the spirit thereof.

1 is a diagram showing an overall configuration of a skateboard system according to an embodiment of the present invention. It is a top view which shows the skateboard used with the skateboard system shown in FIG. It is a functional block diagram which shows the structure of PDA used with the skateboard system shown in FIG. It is a figure which shows the slalom game which can be performed with the skateboard system shown in FIG. It is a figure which shows the display screen of PDA shown in FIG. It is a flowchart which shows the program for skateboard systems installed in PDA shown in FIG. FIG. 7 is a flowchart showing a subroutine of operation check processing in FIG. 6 when the slalom game shown in FIG. 4 is played. FIG. 7 is a flowchart showing a subroutine of sound output processing in FIG. 6 when the slalom game shown in FIG. 4 is played. It is a schematic diagram which shows the position of the virtual obstacle registered into the memory of PDA shown in FIG. It is a figure which shows the BGM changer game which can be performed with the skateboard system shown in FIG. It is a flowchart which shows the subroutine of the operation | movement check process in FIG. 6 in the case of playing the BGM changer game shown in FIG. It is a flowchart which shows the subroutine of the sound output process in FIG. 6 in the case of playing the BGM changer game shown in FIG. FIG. 11 is a schematic diagram showing a BGM registered in the memory of the PDA shown in FIG. 3 when the BGM changer game shown in FIG. 10 is played.

Explanation of symbols

10 Skateboard System 12 Skateboard 16 Stereo Headphone 18 Player 58 Radio Transmitter 62 Memory 64 Radio Receiver 66 Display 72 Virtual Skateboard 74 Virtual Obstacle 76 Item

Claims (10)

Position detecting means for detecting the position of a movable body that can be steered according to the weight shift of the player;
Storage means for storing a predetermined position;
A moving body system comprising: information presenting means for presenting a player with positional relationship information relating to a position of a moving body detected by the position detecting means and a predetermined position stored in the storage means. The mobile system according to claim 1,
The position detecting means includes
Speed detecting means for detecting the speed of the moving body;
A moving direction detecting means for detecting a moving direction of the moving body;
Position determining means for determining the position of the moving body based on the speed of the moving body detected by the speed detecting means and the moving direction of the moving body detected by the moving direction detecting means. Mobile body system. The mobile system according to claim 1 or 2, wherein
The information presenting means includes
Volume determination means for determining the volume according to the distance between the position of the moving body detected by the position detection means and the predetermined position stored in the storage means;
Direction determining means for determining a direction from a position of the moving body detected by the position detecting means to a predetermined position stored in the storage means;
A sound signal output means for outputting a predetermined sound signal so that the sound source is localized at a sound volume determined by the sound volume determination means and in a direction determined by the direction determination means;
And a speaker that generates sound based on the sound signal output from the sound signal output means. The mobile system according to claim 3,
The speed detecting means and the moving direction detecting means are attached to the moving body,
The mobile system further includes
A wireless transmitter that is mounted on the moving body and transmits the speed of the moving body detected by the speed detecting unit and the moving direction of the moving body detected by the moving direction detecting unit;
A portable information terminal attached to the player;
A headphone connected to the portable information terminal,
The storage means, the sound volume determination means, and the direction determination means are included in the portable information terminal, and the portable information terminal includes a wireless receiver that receives the speed and moving direction of the moving body transmitted from the wireless transmitter. Including
The mobile system, wherein the speaker is included in the headphones. The mobile system according to claim 3, further comprising:
Contact determining means for determining whether or not the position of the moving body detected by the position detecting means matches the predetermined position stored in the storage means;
The sound signal output means outputs a predetermined sound effect signal when the contact determination means determines that the position of the moving object matches a predetermined position. The mobile system according to claim 5, further comprising:
Movement determining means for determining whether or not the moving body is moving based on the speed of the moving body detected by the speed detecting means;
The sound signal output means outputs a predetermined music signal when the movement determination means determines that the moving body is moving,
The mobile system further includes
A mobile system comprising: a music stop means for stopping output of a music signal by the sound signal output means when it is determined by the contact determination means that the position of the mobile body matches a predetermined position. The mobile system according to claim 5, further comprising:
Movement determining means for determining whether or not the moving body is moving based on the speed of the moving body detected by the speed detecting means;
The sound signal output means outputs a predetermined music signal when the movement determination means determines that the moving body is moving,
The mobile system further includes
A movement characterized by comprising music changing means for changing the music of the music signal to be output from the sound signal output means when the contact determination means determines that the position of the moving body matches a predetermined position. Body system. Determining the volume according to the distance between the position of the movable body that can be steered according to the weight shift of the player and the predetermined position stored in the storage means;
Determining a direction from the position of the moving body to the predetermined position;
Outputting a predetermined sound signal so that a sound source is localized at the determined volume and in the determined direction;
Determining whether or not the position of the moving body matches the predetermined position;
A program for a moving body system for causing a computer to execute a step of outputting a predetermined sound effect signal when it is determined that the position of the moving body matches the predetermined position. The mobile system program according to claim 8, further comprising:
Determining whether the moving body is moving based on the speed of the moving body;
Outputting a predetermined music signal when it is determined that the moving body is moving;
A program for a mobile system for causing a computer to execute a step of stopping the output of the music signal when it is determined that the position of the mobile body matches the predetermined position. The mobile system program according to claim 8, further comprising:
Determining whether the moving body is moving based on the speed of the moving body;
Outputting a predetermined music signal when it is determined that the moving body is moving;
A program for a mobile system for causing a computer to execute a step of changing music of the music signal to be output when it is determined that the position of the mobile body matches the predetermined position.

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