CN110832268A - Dart game device, dart speed display method, and program - Google Patents

Abstract

The invention provides a dart game device (10), a dart speed display method, and a program. The dart game device (10) provides a dart game in which a player throws darts toward a target, and is provided with: a speed sensor (16) which is provided in the target and outputs speed data indicating the speed of the measured object; a speed detection unit (102) that detects the speed of a dart thrown by a player toward a target using speed data received from a speed sensor; and a display unit (104) that displays the speed of the dart detected by the speed detection unit.

Description

Dart game device, dart speed display method, and program

Cross reference to related applications

The present application is proposed based on japanese application No. 2017-145898, filed on 27.7.2017, the contents of which are incorporated herein by reference.

Technical Field

The invention relates to a dart game device, a dart speed display method, and a program.

Background

A dart game device that competes for a score according to a position in a dart (see, for example, patent document 1) is known. In the conventional dart game device, since the score is automatically calculated from the position of the dart stick, the player can concentrate on the game without counting the number of points by himself.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 4682986

Disclosure of Invention

Problems to be solved by the invention

In a dart game, making the manner of swinging the wrist, the speed at which a dart is thrown, and the like constant is a key to making the dart hit a target position. It is considered that if the player can know the speed of the dart thrown by himself/herself, the player can judge by himself/herself whether the throw mode of the dart is appropriate or not, and can enjoy the dart game more. However, there has not been a dart game device having a function of displaying the speed of darts thrown by a player.

Accordingly, an object of the present invention is to provide a dart game device, a dart speed display method, and a program capable of displaying a dart speed.

Means for solving the problems

A dart game device according to an aspect of the present invention provides a dart game in which a player throws darts toward a target, the dart game device including: a speed sensor that is provided in the target and outputs speed data indicating a speed of the measured object; a speed detection unit that detects the speed of a dart thrown by a player toward a target using speed data received from a speed sensor; and a display section that displays the speed of the dart detected by the speed detection section.

Effect of the invention

According to the present invention, a dart game device, a dart speed display method, and a program that display the dart speed can be provided.

Drawings

Fig. 1 is an external perspective view of a dart game apparatus of an embodiment.

Fig. 2 is a front view of a target.

Fig. 3 is a diagram showing an example of a hardware configuration of the dart game apparatus.

Fig. 4 is a diagram showing an example of a functional block configuration of the dart game apparatus.

Fig. 5 is a diagram for explaining the processing steps of detecting the speed of darts.

Fig. 6 is a graph showing an angle difference between the emission direction of microwaves and the moving direction of darts.

Detailed Description

Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by the same reference numerals.

< integral construction >

Fig. 1 is an external perspective view of a dart game apparatus of an embodiment. As shown in fig. 1, the dart game apparatus 10 is formed in, for example, a vertical rectangular parallelepiped shape. The dart game apparatus 10 provides a player with a dart game in which a player throws three darts continuously in one round or the like, for example. The dart is not particularly limited, and may be a soft dart or a hard dart.

The dart game apparatus 10 includes a target 12 and a display device 14. The target 12 is arranged at a substantially line-of-sight position in a state where the player stands on the front surface of the dart game apparatus 10. The display device 14 displays a static map or a dynamic map.

Further, a coin slot, a mode selection switch, and the like are provided on the front surface of the dart game apparatus 10. The player inserts the fee into the coin slot, and presses the mode selection switch to select the game mode, thereby playing the dart game. In this dart game, a player stands at a predetermined position in front of the dart game device 10, and throws darts while aiming at a predetermined target of the target 12. The front end of the dart reaching the target 12 hits the target 12, the coordinate position of the dart at the puncture is detected, and the score is displayed on the display device 14 according to the position of the puncture.

Fig. 2 is a front view of the target 12. The speed sensor 16 is mounted on the upper left of the target 12, measures the speed of a peripheral object, and outputs speed data indicating the measured speed of the object. The mounting position of the speed sensor 16 is not limited to the position shown in fig. 2. Any position can be installed as long as the speed of the dart can be measured.

The disk surface 18 is divided into a plurality of blocks having different scores, and a block sensor for detecting which block of the plurality of blocks is pressed is attached to the back surface of the disk surface 18. The patch sensor is constituted by a switch group provided at each patch, and the patch in the dart-stick is determined by pressing a switch corresponding to the patch with a force applied when the patch in the dart-stick is stuck.

An impact sensor for detecting an impact applied to the target 12 is attached to the rear surface of the target 12. The impact sensor is used to detect, for example, that the dart hits a certain position on the entire target 12. In the patch sensor, when the dart misses the panel surface 18, the dart hit cannot be detected, but if it is an impact sensor, even when the dart hits a position deviated from the panel surface 18, the dart hit can be detected.

The dart game apparatus 10 may include a position detection sensor including a plurality of light sources 24A attached to the periphery of the target 12, a plurality of light sensors 24B for detecting the light intensity of light emitted from the light sources 24A, and a processing device for calculating the position of the dart on the panel surface 18 based on the light intensity (this is not always the case in the following description). By having the position detection sensor, the dart game apparatus 10 can determine the position of the dart landing panel 18 in detail in comparison with the block unit.

< hardware construction >

Fig. 3 is a diagram showing an example of the hardware configuration of the dart game apparatus 10. The dart game apparatus 10 includes a display device 14, a speed sensor 16, an impact sensor 20, an area sensor 22, a light source 24A, a light sensor 24B, an operation device 26, and a control device 30. The control device 30 includes a CPU32 that controls the entire system, and a memory 34.

When the power of the dart game apparatus 10 is turned on, the CPU32 reads a game program in accordance with the boot program stored in the memory 34 and outputs a game screen to the display device 14. Further, the game mode desired by the player is played based on a coin-in signal from the operation device 26, an input signal from the selection switch, the start switch, and the like.

< functional Block composition >

Fig. 4 is a diagram showing an example of the functional block configuration of the dart game apparatus 10. The dart game device 10 includes a game execution unit 100, a speed detection unit 102, a display unit 104, and a violation detection unit 106. The game execution unit 100, the speed detection unit 102, the display unit 104, and the violation detection unit 106 can be realized by a process of causing the CPU32 to execute a program stored in the memory 34. In addition, the program can be saved in a recording medium. The recording medium storing the program may be a non-transitory recording medium readable by a computer. The non-transitory recording medium is not particularly limited, and may be, for example, a recording medium such as a USB memory or a CD-ROM.

The game execution section 100 has a function of performing various processes for executing a dart game. The various processes include, for example, the progress of a game mode selected by the player, the determination of a dart hitting the target 12, the determination of the position of the dart board 18, the calculation of a score, and the display of a moving image for presenting a dart game.

Further, the game execution unit 100 determines the timing at which the impact sensor 20 detects the impact as the timing at which the dart hits the target 12. Whether or not the impact sensor 20 detects an impact, the game execution unit 100 may determine the timing at which the block sensor 22 detects that any one of the blocks included in the target 12 is pressed, or the timing at which the position detection sensor notifies the dart-patch 18, as the timing at which the dart hits the target 12. When it is determined that the dart hits the target 12, the game execution unit 100 notifies the speed detection unit 102 of the determination that the dart hits the target 12.

The speed detection unit 102 has a function of detecting the speed of a dart thrown by a player toward the target 12 using speed data indicating the speed of an object output from the speed sensor 16. Here, the speed sensor 16 included in the dart game device 10 may be a sensor that discretely outputs speed data indicating the speed of an object detected by the speed sensor 16. In this case, the speed detection unit 102 may detect the speed data received from the speed sensor 16 as the speed of the dart during a period from a timing at which the game execution unit 100 determines that the dart hits the target 12 to a timing before a predetermined time from the timing (hereinafter referred to as a "predetermined determination period").

The display section 104 has a function of displaying the speed of the dart detected by the speed detection section 102 on the display device 14.

The violation detecting unit 106 has a function of determining whether or not a player has performed a violation. Specifically, when the game execution unit 100 determines that the dart strikes the dial 18 and the speed detection unit 102 detects the speed of the dart, the violation detection unit 106 determines that the player is not performing a violation. Further, when the game execution unit 100 determines that the dart is hitting the dial 18 and the speed of the dart is not detected by the speed detection unit 102, the violation detection unit 106 determines that there is a possibility that the player performs a violation. The violation by the player is, for example, a behavior that the player presses a block by himself or herself and the dart game device 10 makes a judgment erroneously as if the dart was thrown, even though the dart was not actually thrown. When the violation detection unit 106 determines that there is a possibility that the player has performed a violation, the game execution unit 100 may not count the score. In addition, when the violation detection unit 106 determines that the number of times that the player is likely to perform a violation exceeds a predetermined number of times, the game execution unit 100 may determine that the player has performed a violation without counting the score.

< processing step >

(speed detection of boomerang)

Next, specific processing steps performed by the dart game apparatus 10 will be described. The speed sensor 16 in the present embodiment is, for example, a doppler sensor, and is mounted on the target 12 so that microwaves are emitted toward the space between the player and the dart game apparatus 10. The speed sensor 16 detects the speed of the object using a difference in the frequency of the transmitted microwave and the frequency of the microwave reflected from the moving object.

Fig. 5 is a diagram for explaining the processing steps of detecting the speed of darts. The speed sensor 16 discretely outputs speed data representing the speed of the object as shown in fig. 5. The vertical direction of fig. 5 represents the speed (km/h) and the horizontal direction represents the time (t). P1 to P6 in fig. 5 are arranged in chronological order in which the speed detection unit 102 receives the speed data output from the speed sensor 16.

Here, since the speed sensor 16 cannot determine whether or not the moving object is a dart, the speed data output from the speed sensor 16 includes, in addition to the speed of the dart, speed data detected by the movement of the player swinging his wrist, speed data detected by the reflection of microwaves by people passing around the dart game apparatus 10, and the like.

Therefore, in order to appropriately select the speed data corresponding to the speed of the dart from the speed data received from the speed sensor 16, the speed detection unit 102 may determine, from among the one or more pieces of speed data received from the speed sensor 16 within a predetermined determination period, the speed data received from the speed sensor 16 at the timing closest to the timing at which it is determined that the dart hits the target 12, as the speed data corresponding to the speed of the dart.

Here, the predetermined determination period is a period from a timing (T1 in fig. 5) at which the game execution unit 100 determines that the dart hits the target 12 to a timing (T2 in fig. 5) before a predetermined time (for example, 1 second or 0.5 second) from the timing. Thus, since the speed detection unit 102 determines the most recently measured measurement data, in which the dart hits the target 12, as the speed data corresponding to the speed of the dart, it is possible to suppress erroneous determination of speed data, which is not related to the speed of the dart, such as speed data detected by the motion of the player swinging the wrist, as the speed data corresponding to the speed of the dart, and to detect the speed of the dart with higher accuracy.

The speed sensor 16 may determine the speed data having the highest speed within a predetermined determination period as the speed data corresponding to the speed of the dart. It is assumed that in the store in which the dart game apparatus 10 is installed, there is normally no object that moves faster than the flight speed of the dart, and therefore it is possible to suppress erroneous determination of the speed number corresponding to an object other than the dart as speed data corresponding to the speed of the dart, and to detect the speed of the dart with higher accuracy.

Here, it is assumed that the speed data output from the speed sensor 16 is not sent to the speed detection unit 102 for a predetermined determination period for some reason, and the speed detection unit 102 cannot detect the speed of the dart. To cope with such a situation, when the speed detection unit 102 does not have the speed data received from the speed sensor 16 within the predetermined determination period, the speed detection unit may determine the speed data received from the speed sensor 16 after the timing at which it is determined that the dart hits the target 12 as the speed data corresponding to the speed of the dart. More specifically, when there is no speed data received from the speed sensor 16 within a predetermined determination period, the speed detection unit 102 determines that the speed data received from the speed sensor 16 corresponds to the speed of the dart during a period from a timing (T1 in fig. 5) at which it is determined that the dart hits the target 12 to a timing (T3 in fig. 5) at which a predetermined time has elapsed. Even in the unlikely event that the speed data output from the speed sensor 16 is delayed for some reason and does not reach the speed detection section 102, the speed detection section 102 can detect the speed of the dart.

(correction of dart velocity)

The speed sensor 16 detects the speed of the dart by using the doppler effect. Here, when the velocity is detected by the doppler effect, if the emission direction of the microwave and the direction in which the object to be detected moves are not coaxial, the velocity of the object to be detected is low, and a measurement error occurs.

Fig. 6 is a graph showing an angle difference between the emission direction of microwaves and the moving direction of darts. A1 represents the position at which the player throws the dart, and B1 and B2 represent the position at which the dart strikes the center panel 18. The track O1 shows an example of a track in which the player throws a dart from the position of a1 to B1 in the dart, and the track O2 shows an example of a track in which the player throws a dart from the position of a1 to B2 in the dart. L1 shows an example of estimating the position at which the microwave emitted from the speed sensor 16 meets the dart and is reflected. When the dart is flying along the track O1, the angular difference between the traveling direction of the microwave and the moving direction of the dart is θ 1, and when the dart is flying along the track O2, the angular difference between the traveling direction of the microwave and the moving direction of the dart is θ 2. In the case of fig. 6, since θ 1 < θ 2, the measurement error of the dart speed in the case where the dart flies along the track O2 is larger than that in the case where the dart flies along the track O1.

Here, the trajectory of the dart from the throwing dart to the dartboard panel 18 varies in various ways depending on the position at which the player throws the dart, the speed of the dart, and the position of the dartboard panel 18. However, if the position at which the player throws the dart is fixedly determined in advance, the trajectory of the dart can be estimated from the speed of the dart and the position of the dart landing panel 18. In addition, the angle between the direction in which the microwaves are emitted and the direction in which the dart as the detection target moves can be estimated by fixedly determining in advance the position at which the microwaves are estimated to be reflected on the trajectory of the dart.

Therefore, in the present embodiment, in order to simplify the processing of correcting the dart speed, the position at which the player throws the dart (a 1 in fig. 6) and the position at which the player is estimated to encounter the microwave on the trajectory of the dart (L1 in fig. 6) may be fixed in advance. In this state, the speed detection unit 102 may calculate an angle difference between the traveling direction of the microwaves and the moving direction of the darts based on the speed data of the speed data determined to correspond to the speed of the darts among the speed data received from the speed sensor 16 and the position of the dart center panel 18, and detect the speed of the darts after the correction by correcting the value of the speed data using the calculated angle difference. When the position of the dart-center panel 18 is detected by the patch sensor 22, the speed detector 102 may regard the position of the dart-center panel 18 as the center of the patch. In addition, when the position of the dart board 18 is detected by the position detection sensor, the speed detection unit 102 may set the position itself detected by the position detection sensor as the position of the dart board 18.

As another method, a table (speed correction table) in which the speed of the dart, the position of the dial 18 in the dart board, and the amount of change in the dart speed due to the angular difference between the advancing direction of the microwave and the moving direction of the dart are associated with each other may be stored in the memory 34 or the like in advance. The speed detection unit 102 may search the table using the speed data received from the speed sensor 16 and the position of the dart-patch 18 as keys to acquire the amount of change in the dart speed, and multiply the acquired amount of change by the speed data acquired from the speed sensor 16 to detect the dart speed. In this table, the positions of the disk surface 18 in the dart-stick may be divided in the disk surface 18 on a block unit basis, or may be divided in a unit more detailed than a block.

(modification example)

In the present embodiment, instead of the doppler sensor, a speed sensor using a stereo camera mounted on the target 12 may be used as the speed sensor 16. The speed sensor using a stereo camera measures the distance between the target 12 and the dart by, for example, shooting the dart flying to the target 12 using two cameras, and calculates the speed of the dart from the moving distance and the moving time of the dart obtained from the multiple measurement results.

The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit the present invention. The elements of the embodiments, and the arrangement, materials, conditions, shapes, dimensions, and the like thereof are not limited to those exemplified, and can be appropriately modified. In addition, the configurations shown in different embodiments may be partially replaced or combined with each other.

In the present embodiment, the term "section" does not merely mean a physical mechanism, and includes a case where a function of the corresponding "section" can be realized by software. Further, the functions of one "section" or device may be realized by two or more physical mechanisms or devices, or the functions of two or more "sections" or devices may be realized by one physical mechanism or device.

Description of the reference numerals

10 … dart game device, 12 … target, 14 … display device, 16 … speed sensor, 18 … panel, 20 … impact sensor, 22 … block sensor, 24a … light source, 24B … light sensor, 26 … operation device, 30 … control device, 32 … CPU, 34 … memory, 100 … game execution unit, 102 … speed detection unit, 104 … display unit, 106 … violation detection unit

Claims (9)

1. A dart game apparatus which provides a dart game in which a player throws darts toward a target,

the dart game apparatus is characterized by comprising:

a speed sensor that is provided in the target and outputs speed data indicating a speed of the measured object;

a speed detection section that detects a speed of the dart thrown by the player toward the target using speed data received from the speed sensor; and

a display section that displays the speed of the dart detected by the speed detection section.

2. The dart game apparatus according to claim 1,

the speed sensor outputs speed data each time the speed of the object is detected,

the speed detection section determines speed data received from the speed sensor within a predetermined determination period between a timing at which it is determined that the dart hits the target and a timing before a predetermined time from the timing as the speed data corresponding to the speed of the dart.

3. The dart game apparatus according to claim 2,

the speed detection unit determines, from among one or more pieces of speed data received from the speed sensor within the predetermined determination period, speed data corresponding to the speed of the dart, the speed data received from the speed sensor at a timing closest to a timing at which the dart is determined to hit the target.

4. The dart game apparatus according to claim 3, wherein,

when the speed data received from the speed sensor does not exist within the predetermined determination period, the speed detection unit determines that the speed data received from the speed sensor after the timing at which the dart is determined to hit the target is the speed data corresponding to the speed of the dart.

5. The dart game apparatus according to any one of claims 2 to 4,

having an impact sensor that detects an impact applied to the target,

the speed detection section sets a timing at which the impact sensor detects an impact as a timing at which it is determined that the dart hits the target.

6. The dart game apparatus according to any one of claims 1 to 5,

the speed detection section detects the speed of the dart by correcting the speed data received from the speed sensor and the position at which the dart hits the target based on the speed data.

7. The dart game apparatus according to any one of claims 1 to 6,

has a violation detection unit for determining whether the player correctly throws a dart,

the violation detection unit is configured to detect a violation of a vehicle,

determining that the player does not perform an illegal action when it is determined that the dart is stabbed on the disc surface of the target and the speed of the dart is detected by the speed detection section,

when it is determined that the dart is sticking to the disk surface of the target and the speed of the dart is not detected by the speed detection unit, it is determined that there is a possibility that the player performs an illegal action.

8. A dart speed display method, which is a dart speed display method executed by a dart game device that provides a dart game in which a player throws darts toward a target,

the dart speed display method is characterized by comprising the following steps:

a step of detecting a speed of the dart thrown by the player toward the target using speed data received from a speed sensor that is provided in the target and that outputs speed data representing a measured speed of an object; and

a step of displaying the detected speed of the dart.

9. A program which is a program for providing a dart game in which a player throws darts toward a target,

the program is characterized by causing a computer to execute the steps of:

a step of detecting a speed of the dart thrown by the player toward the target using speed data received from a speed sensor that is provided in the target and that outputs speed data representing a measured speed of an object; and

a step of displaying the detected speed of the dart.

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