JPH0517118Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial application field This invention is applicable to competitive games such as automobile racing and horse racing,
The present invention relates to a device for detecting the position of each moving object in a game device in which a plurality of moving model objects are played while moving, such as a ball game such as soccer or hockey.

BACKGROUND OF THE INVENTION Generally, in competitive games, ball games, etc., the movement of each moving object is regular in many cases where a plurality of model moving objects are driven and controlled.

However, in the case of such a game device, although it is easy to accurately control the movement, the movement is regular and therefore has the disadvantage that the player loses interest.

Therefore, there is a radio control system that allows moving objects to move around freely, which controls the movement of moving objects by radio control.

Problems that the invention aims to solve However, in the case of radio control, it is difficult to control the movement of a moving object accurately, and it is the human operator who issues the control commands.

It is difficult to accurately move a moving object that can move freely along a certain trajectory as long as it is operated by humans.
Even if this is controlled by a computer, it is difficult to accurately control objects whose trajectories are constantly changing by only issuing unilateral control commands from the computer to the moving object.

Means and Effects for Solving the Problems The present invention has been devised in view of these points, and its purpose is to detect the position of a moving object, which has not been done in the past, and to accurately locate the moving object through feedback control. The object of the present invention is to provide a position detection device for a moving body whose movement can be controlled.

That is, the present invention is a game device in which a plurality of movable objects move within a field to play a game, and the present invention includes a position detection board in which conductive wires are laid in a grid pattern, stretched over the floor or ceiling of the field without touching each other; A position detection coil mounted on a moving object,
A current supply means for generating an induced electromotive force in the conductive wire or the position detection coil, a detection means for detecting the generated induced electromotive force, and a two-dimensional position of a plurality of moving objects based on the detection results of the detection means. This is a position detecting device for a moving body, comprising position determining means for determining each of the positions.

It is possible to generate an induced electromotive force in the conductor or position detection coil by using the electromagnetic induction phenomenon by the current of the current supply means, and by detecting this induced electromotive force with the detection means, it is possible to generate an induced electromotive force from the position of the conductor where the induced electromotive force is generated. Alternatively, the position determining means can determine the two-dimensional position of the moving object from the driving status of the position detection coil.

The detection result of the position of the moving object is used to control the movement of the moving object, thereby enabling accurate control.

Embodiment An embodiment of the present invention illustrated in FIGS. 1 to 10 will be described below.

This embodiment is an example applied to a horse racing game device.

FIG. 1 is an overall external view of the horse racing game device 1.
An annular track 3 is installed on the top surface of the horizontally long base 2, and 4 tracks are installed at the front and back stand positions.
There are 4 satellites arranged for each seat.

Each satellite 4 is equipped with a monitor 5, and is also provided with an operation panel 6, a coil input port 7, and a coin payout port 8, in which coins are inserted and the operation panel 6 is operated to select the expected winning horse. You can vote single or double.

A curved arm member 9 extends from the stand position on one curved side of the track 3 toward a position above the center of the track 3, and a speaker 1 is mounted at the tip of the arm member 9.
A proving device 11 is fixedly supported so as to illuminate the vehicle 0 and the track 3 below.

A display 12 is provided at an intermediate position of the arm member 9 and faces toward the track 3, and displays horse introductions, numbers, frameworks, betting rates, etc.

A model horse 20 with six jockeys 21 can run on the track 3.

The drive mechanism of the model horse 20 will be explained below based on FIG. 2.

The model horse 20 (the jockey 21 is omitted) is supported by a cart 23 via a support 22, and the cart 23 is provided with one front wheel 24 and two rear wheels 25 on the left and right, and the front wheels 24 are vertically mounted. It is supported by a support member 26 which is rotatably supported on the trolley 23 with the direction as the pivot axis direction, so that the running direction can be changed smoothly.

A magnet 27 is fixed to the truck 23 between the two rear wheels 25 with a slight distance from the surface of the truck 3.

The model horse 20 moves its front legs 2 in response to the rotation of the rear wheels 25.
0a and the hind legs 20b are swung back and forth to imitate the running of an actual horse.

The track 3 has a three-layer structure, with a design field 30 made of an aluminum plate whose surface is electrostatically flocked in the upper layer, an acrylic reinforcing plate 31 in the middle layer, and a power supply plate 32 in the lower layer.

There is a space below the power supply plate 32, and a separate running path 40 is provided facing the truck 3 above through the space.
has been installed.

The running path 40 is made up of an acrylic film 42 stretched over the top surface of a thick position detection plate 41, and a carrier 50 on which the model horse 20 runs is arranged on the running path 40.

The carrier 50 is mounted on a base 53 supported by front wheels 51 and rear wheels 52, and has a running motor 54 for driving the rear wheels 52, a steering motor 55, a motor drive board 56, a light receiver 57, and an oscillator board 58.
and a CPU board 59, etc. are mounted, and the front is supported horizontally on an upper plate member 60 via a compression spring 62 interposed between two upper and lower plate members 60, 61. roller 6
3. A current collector unit 70 is placed between the rear roller 64 and the center, and a magnet 6 is placed between the rear left and right rollers 64.
5 are arranged.

The current collecting unit 70 is provided with eight current collectors 71 that protrude upward.

The members disposed on the plate member 60 are urged upward by a compression spring 62, and the rollers 63 and 64 contact the power supply plate 32 on the lower surface of the upper truck 3, so that the carrier 50 is The power collecting unit 70 is sandwiched between the current collecting unit 3 and the running path 40 to enable smooth running, and to maintain the relative position of the current collecting unit 70 with respect to the power feeding plate 32 in a predetermined positional relationship.

The current collector 7 is protruded above the current collector unit 70 which is maintained at a predetermined distance from the power supply plate 32 in this way.
1 have their respective tips in contact with the power supply plate 32 via springs 72, and can receive power from the power supply plate 32 under appropriate pressure contact.

Truck 3 is placed above the carrier 50 as described above.
When the model horse 20 is placed through the magnets so that the magnet 65 on the carrier 50 side and the magnet 27 on the model horse 20 side face each other, the magnetic force between the magnets causes the carrier 50 to
The model horse 20 follows the movement of.

The carrier 50 itself receives electric power through the power supply plate 32 and the current collecting unit 70, and also receives a control signal through the light receiver 57 to drive and control the driving motor 54 and the steering motor 55 to travel.

An oscillation coil 66 is fixed to the lower surface of the base plate 53 of the carrier 50, and the position of the carrier 50 is detected and fed back via the position detection plate 41, and is used to control the travel of the carrier 50.

Next, the control system will be explained based on FIG. 3.

FIG. 3 is a schematic block diagram of the control system.

The game machine main body 100 is provided with a microcomputer 101 that selects the race development and performs main control of the entire system, as well as the satellite 4, the display 12, and the infrared carrier 5.
An infrared light emitting device 102 that emits a zero control signal and a position detection unit 103 that detects the position of the carrier 50 are installed.

Microcomputer 101 is satellite 4,
It drives and controls the display 12 and the infrared light emitting device 102, inputs a position detection signal from the position detection unit 103, and performs feedback control of the movement of the carrier 50.

Each carrier 50 has a one-chip microcomputer 104, and the receiver 57 on the carrier 50 side receives an infrared signal from the infrared light emitting device 102 on the game machine main body 100 side, and transmits the control signal to the one-chip microcomputer 104. The microcomputer 104 inputs the signal, analyzes the signal, and outputs a drive control signal to the traveling motor 54, steering motor 55, and oscillation coil 66.

The oscillation coil 66 provided in each carrier 50 is driven by the above control signal to oscillate at a frequency of 455 KHz, and the position detection plate 41 receives the oscillation of the oscillation coil 66 and receives the oscillation of the position detection plate 41. The position detection unit 103 on the game machine main body 100 side detects the position of each carrier 50, and feeds back the detection signal to the microcomputer 101.

The present embodiment is constituted by the control system as described above, and each carrier 50 is controlled by an infrared signal oscillated by an infrared emitter disposed in the space in which the carrier 50 travels, that is, the space between the truck 3 and the traveling path 40. is driven and controlled.

The infrared signal is a time-divided serial control signal, and frames corresponding to each carrier are serially transmitted.

Next, we will discuss the position detection method of the carrier 50 in the fourth section.
This will be explained based on FIGS. 9 to 9.

FIG. 4 is a block diagram for position detection, which consists of a position detection plate 41 and a position detection unit 103 stretched below the carrier 50.

The position detection plate 41 has a rectangular shape, and an annular running path is formed above it as indicated by a broken line.

This position detection plate 41 has electric wires 130 strung vertically and horizontally, and when the X-axis direction and Y-axis direction are determined as shown by the arrows in FIG. 4, a plurality of electric wires oriented in the Y-axis direction are Enumerated over the direction,
A plurality of electric wires oriented in the axial direction are arranged in a row along the Y-axis direction, and both are insulated.

The end of the electric wire oriented in the Y-axis direction is connected to the X-axis position search circuit 131, and the end of the electric wire oriented in the X-axis direction is connected to the Y-axis position search circuit 132. The signal is input to the position detection circuit 133, the carrier position on the position detection plate 41 is determined, and the result is output to the microcomputer 101.

A method for detecting the position of the carrier 50 in the X-axis direction by the X-axis position search circuit 131 will be explained based on FIGS. 5 and 6.

Note that the same applies to position detection in the Y-axis direction.

Electric wires 130 oriented in the Y-axis direction from left to right
Assign signs as x ₀ , x ₁ , x ₂ , ...

The ends of the electric wires x ₀ , x ₁ , x ₂ , .
The SW 134 is driven and controlled by a switching drive circuit 136.

The switching drive circuit 136 receives the address signal and drives the switches SW 134 on and off in order starting from the switch SW associated with the electric wire _x0 .

In other words, the switch SW for wire X ₀ is turned on and then turned off, the switch SW for the next wire x ₁ is turned on and then turned off, and the switch SW for the next wire x ₂ is turned on and off. On/off driving is performed sequentially.

Therefore, the currents that would flow in each wire flow through the comparison circuit 135 in order from the current in the wire _x0 .

When the current carrier 50 is on the wire x ₁ ,
That is, the oscillation coil 66 of the carrier 50 is
As shown in Figure 0, when the oscillation coil 66 oscillates when the wire is over the wire _x1 , an induced electromotive force is generated in the wire _x1 , a current flows through the wire _x1 , and the wire _x1
Comparison circuit 135 while the switch related to
The same current is input to

Note that there is also a slight crossover of magnetic flux between the wires x ₀ and x ₂ near the wire x ₁ , so a small amount of current flows.

FIG. 6 shows the waveform diagram.

The current that appears _{significantly} in _the electric wire
appears as it is in the input signal x, and a waveform that stands out only in the time period of address 1 compared to the time periods of other addresses 0, 2, 3, . . .

When this input signal x is compared with a reference current value in the comparator circuit 135 and converted into a pulse signal, a pulse waveform is seen only at address 1 like the output signal X.

In this way, the position of the carrier 50 is detected to be on the electric wire _x1 , and the carrier position in the X-axis direction is detected.

Similarly, the position in the Y-axis direction is detected by the Y-axis position search circuit 132, and the two-dimensional position of the carrier 50 can be determined using the X and Y coordinates.

A signal that detects the position of the carrier 50 in this manner is input to the microcomputer 101 and is used to control the drive of the carrier 50.

The oscillation coil 66 of each carrier 50 is instructed to oscillate by the L signal of the position detection coil control bit of the infrared control signal, and is driven to oscillate for a period of 70 ms.

The drive timing of the oscillation coil 66 of each carrier 50 will be explained based on FIG. 7.

FIG. 7 is a timing chart showing the infrared control signal of the infrared generator 102 and the driving state of the oscillation coil 66 of each carrier 50.

Note that the six carriers 50 have a ₁ , a ₂ ,
Let's number them a ₃ , a ₄ , a ₅ , and a ₆ .

First, in the first frame of the control signal, a centering command is given to all carriers a ₁ to a ₆ , and each carrier enters a straight-ahead state.

Then, in the next frame, a control signal to the carrier _a1 is oscillated, and at the same time an activation command is given to the carrier _a1 , an oscillation command is given to the oscillation coil 66 of the carrier _a1 .

In the next frame, an activation command is given to the carrier _a2 , but there is no command to oscillate the oscillation coil 66.

At the start of the same frame, the oscillation coil 66 of the carrier _a1 starts to oscillate according to the oscillation command,
Oscillation continues until a certain period of 70ms has elapsed.

During this time, as mentioned above, first carry _out the
The coordinates are detected and then the T coordinates are detected.

This detection result is fed back and then reflected in the frame operation command that controls carrier _a1 , thereby performing feedback control.

After the activation command frame for carrier a ₂ , activation commands are sequentially issued for carriers a ₃ , a ₄ , etc., and then carrier a _{6 is} activated.
In the activation command frame, an oscillation command is issued for the oscillation coil 66 of the carrier _A6 .

This oscillation command drives the oscillation coil 66 of carrier _A6 for the next 70 ms at the same time as the start of the next frame.

In this way, the oscillation command for the oscillation coils 66 of the carriers a ₁ , a ₆ , a ₅ . . . is sequentially issued once every five frames, and the positions of the carriers are sequentially detected.

FIG. 8 is a flowchart showing this control procedure.

Each frame is shown step by step, and after receiving a command to activate carrier a ₆ in step 31, the program returns to step 2 and then repeats steps 2 to 31 to move carriers a ₁ , a ₂ , a ₃ , a _Four ,
Feedback control of a ₅ and a ₆ is performed.

Next, the control routine for the position detection procedure is executed in the ninth step.
It is illustrated and explained in the figure.

When power is turned on (step 40), initial settings are made (step 41), and then carrier a ₁
A search is performed sequentially from wire x ₀ (step
42), when the X coordinate is detected (step 43), the search is performed sequentially starting from wire y ₀ (step 44), and the
Once the coordinates have been detected (step 46), the position of carrier _a1 on the position detection plate 41 is determined (step 46).

Then in the next step 47 all carriers a ₁ to a ₆
It is determined whether the position has been detected for the
If the positions of all carriers have not been detected, the process returns to step 42 and the position of the next carrier is detected.

Once the positions of all carriers a ₁ to _{a 6} have been detected in this way, from the next time the search will be performed from positions near the detected X and Y coordinates to increase the search speed. There is.

In other words, in step 48, carrier a ₁
Let x _i be the electric wire with the X coordinate detected earlier for the above, then the X coordinate is searched from the electric wire xi−k with the subscript number i−k smaller than i.

In some cases, the wire with the larger subscript i+k
There is a case where the search proceeds from xi+k to wires with smaller subscript numbers.

Then, it is determined whether or not the X coordinate has been detected (step 49), and if it has been detected, steps 50 and 51 are performed.
When the electric wire cannot be detected, the search is performed again starting from the electric wire x ₀ and the X coordinate is detected (step 51).

Since most cases can be detected by searching from the normal electric wire xi±k, the search time can be significantly shortened.

Similarly, the Y coordinate is searched starting from the electric wire Yi±k (step 52), and it is determined whether it has been detected (step 53). If it is detected, the process jumps to step 56, and if it is not detected, the search is performed starting from the electric wire y ₀ . Then, the Y coordinate is detected (step 55).

In this way, the position of the carrier is detected for the second and subsequent times, increasing the search speed.

Next, the travel control of the carrier will be explained using a flowchart shown in FIG.

When power is turned on (step 80) and initial settings are made (step 81), the carriers _A1 to _A6 are centered to make them travel straight and are controlled to neutral positions (step 82).

In order to detect the position of each carrier 50 before the start, the oscillation coil 66 of each carrier 50 is sequentially oscillated (step 83), and the position of each carrier is detected by the position detection unit 103 via the position detection plate 41 ( Step 84).

Then, after waiting for the demonstration to start (step 85), the distance to the starting point for each carrier 50 is calculated (step 86), and the distance for each carrier 50 is calculated (step 86).
Move 0 to the starting point (step 87).

It is determined whether all the carriers are at the starting point (step 88), and steps 86, 87, and 88 are repeated until all the carriers are aligned at the starting point, and the model horses 20 are lined up on the starting line.

Once all the carriers are in place, wait for the race to be decided (Step 89) and wait for the race to start (Step 90).

When the race starts, each of the carriers a ₁ to a ₆ is controlled to run according to the determined race development (step 91), and the positions of the carriers a ₁ to a ₆ are sequentially detected by the position detection plate 41 (step 91). 92).

Then, it is determined whether the race is over (step
93), if the race has not ended, the preset race development and the detected positions of each carrier are compared to determine whether the race is proceeding as planned (step 94).

If the race is progressing, the process returns to step 91 and the carrier travel control is performed as before; if the race is not progressing, the process proceeds to step 95, where the predicted position based on the predetermined race development and the actual carrier position are compared. The difference is calculated (step 95), the travel of each carrier is controlled based on the calculation result (step 96), and the process returns to step 94.

When the race is progressing according to the predetermined race development, steps 91, 92,
Steps 93 and 94 are repeated, and if the race goes out of line, steps 95 and 96 are repeated to make corrections by moving each carrier to the expected position.

When the race is over, the process moves from step 93 to step 97, where it is determined whether there are any credits remaining (step 97), and if there are any credits remaining,
Return to step 86, and if there are no credits remaining, return further to step 85.

As described above, in the horse racing game device of this embodiment, each model horse 20 runs according to a carrier that is independently driven and controlled, so that each model horse 20 is not restricted by a course, just like in an actual horse race. It is possible to imitate the racing while trying to secure as advantageous position as possible, making the race very interesting.

Since the drive of each carrier is controlled by feedback based on position detection, it is possible to reliably realize a predetermined race development.

In this embodiment, the carrier positions were detected in a time-division manner, but if the oscillation coils of each carrier oscillate at different frequencies, it would be possible to identify and detect these frequencies.
An appropriate carrier position can be detected at any time as needed.

An example of position detection using a counter is shown below.

FIG. 11 is a schematic block diagram showing the position detection mechanism of the same example, in which carriers 151 run on a position detection plate 150, each carrier 151 is equipped with a position detection coil 152, and receives a detection signal. A light emitting device 153 that converts into an optical signal and transmits the signal is provided.

A light receiving device 155 is disposed on the game machine main body 154 side (disposed at a predetermined position on the outer circumference of the traveling path), and has a counter 156 for calculating the number of signals received by the light receiving device 155, and the count value of the counter 156 is It is input to the microcomputer 157.

In the position detection mechanism as described above, the position detection plate 150 has electric wires laid in a grid pattern as shown in FIG. 12, and the electric wires x ₀ , x ₁ ,
A current of frequency ₁ is applied to x ₂ ..., and a current of frequency ₂ (≠ ₁ ) is applied to the electric wires y ₀ , y ₁ , y ₂ ... oriented in the X-axis direction.
current is applied.

Note that the light receiving device 15 on the game machine main body 154 side
The details of the 5 counter 156 will be explained based on FIG.
₁ filter 15 that passes only the signal of frequency ₁
9 and ₂ filter 160 which passes only signals of frequency ₂ .

The signal that has passed through the ₁ filter 159 is input to the X counter 156a, and the signal that has passed through the ₂ filter 160 is input to the Y counter 156b.

Count signals from both counters 156a and 156b are input to a microcomputer 157.

Therefore, the carrier 151 is the position detection plate, 15
When traveling over 0, the position detection coil 152
It moves within a magnetic field formed by the current flowing through x ₀ , x ₁ . . . , y ₀ , y ₁ .

This induced electromotive force includes high frequencies ₁ and ₂ , and the light emitting device 153 is operated in response to changes in the induced electromotive force to emit an optical signal.

The light receiver 155a receives this signal at a frequency of ₁
The moving distance in the X direction can be known by counting by the X counter 156a, and the frequency
₂ , the moving distance in the Y direction can be detected by counting by the Y counter 156b.

The control procedure for this position detection will be explained based on the flowchart of FIG. 14.

In the same flowchart, steps 102 to 107 are steps for detecting the initial position of carrier 151, and steps 108 to 107 are steps for detecting the initial position of carrier 151.
Steps up to 110 are steps for detecting the subsequent position of the carrier 151.

First, when power is turned on (step 100), initial settings are made (step 101), then the electric wire _x0 is energized (step 102), and it is determined whether the carrier 151 has received an electromagnetic field (step 103). ).

If the carrier 151 is on the electric wire x ₀ , an induced electromotive force will be generated in the position detection coil 152, and the carrier 151 will receive an electromagnetic field, but the electric wire x ₀
If there is no carrier 151 above, use carrier 151.
does not receive electromagnetic fields.

Carrier 151 by position detection coil 152
Since the receiving state of the electromagnetic field is sequentially transmitted to the light receiving device 155 by the carrier 151, the receiving state is grasped on the game machine main body 154 side.

If the carrier 151 does not receive an electromagnetic field when electric wire x ₀ is energized, return to step 102, energize the next electric wire x ₁ , and check whether or not an electromagnetic field is received (step 103).

Repeat steps 102 and 103 to remove carrier 1.
51 receives the electromagnetic field, the x-coordinate of the carrier 151 can be detected at the position of the energized wire at this time, and the process proceeds to step 104.

This time, power is applied sequentially from wire y ₀ , and carrier 151
Determine whether or not electromagnetic field is being received (step
105), the y-coordinate of the carrier 151 is detected.

Then, the position of the carrier 151 is determined from the above X and Y coordinates (step 106), and it is determined whether or not the position detection of all the carriers 151 has been completed (step 107). If not, the process returns to step 102. , the position of the remaining carrier 151 is detected.

By repeating steps 102 to 107, the initial positions of all the carriers 151 are determined, and this initial position is set in the marker 156 as the current value.

Then, in the next step 108, all the electric wires are energized, and as the carrier 151 travels, the
The X counter 156 measures the number of electromagnetic fields received by the carrier 151 each time it passes through each electric wire in the Y direction.
a and Y counter 156b respectively count (step 109).

This X counter 156a, Y counter 156b
The moving position of the carrier 151 is determined based on the count value (step 110).

By repeating steps 108, 109, and 110, the moving position of the carrier 151 can be determined successively.

In the above embodiment, the counter 156 is provided on the game machine main body 154 side, but each carrier 151 may be equipped with a counter and the count value of the counter may be transmitted to the game machine main body side.

Also, a current of frequency ₁ was passed through the wires x ₀ , x ₁ , x ₂ , etc., and a current of a different frequency ₂ was passed through the wires y ₀ , y ₁ , y ₂ . Position detection is possible even when energized.

That is, as shown in FIG. 15, the position detection signal received by the light receiver 160 on the game machine main body side is amplified by the amplifier 161 and sent to the switch circuit 162.
The count values of the X counter 163 and Y counter 164 are input to the microcomputer 165 in a time-divided manner.

Here, the switch circuit 162 switches the contacts to connect the output terminal of the amplifier 161 and the X counter 16.
3. The input terminals of the Y counter 164 are alternately connected.

Now, the relationship between the time for energizing the electric wires x ₀ , x ₁ , x _{2 .} . . of the position detection plate and the time for energizing the electric wires y ₀ , y ₁ , y ₂ .

It shows that energization is carried out when the signal is at a high level, and the energization time and non-energization time are the same time t, and the electric wires x ₀ , x ₁ , ... and the electric wires y ₀ , y ₁
...are alternately energized.

If the switch circuit 162 is switched every time t, the X counter 163 will operate when the electric wires x ₀ , x ₁ . . .
The Y counter 164 can be activated when y ₀ , y _{1 .} . . is energized, and the moving position of the carrier can be detected in a time-division manner.

Note that since the time t is shorter than the time it takes for the carrier to move between adjacent electric wires, there is no problem such as the position not being detected in the Y-axis direction while the X-coordinate is being detected.

As described above, various methods can be considered for detecting the position of the carrier.

Further, in the above embodiment, an example was shown in which the present invention was applied to a game device imitating a horse race, but the present invention can also be applied to other games such as an automobile race and a competition between humans.

Effects of the Invention The present invention is capable of detecting the two-dimensional positions of a plurality of moving bodies moving within a field, so that drive control of the moving bodies can be performed accurately, and various games can be made more interesting.

[Brief explanation of the drawing]

FIG. 1 is an overall external view of a horse racing game device according to an embodiment of the present invention, FIG. 2 is a sectional view showing a carrier and a drive mechanism for a model horse in the same embodiment, and FIG.
The figure is a schematic block diagram of the control system of this embodiment, Figure 4 is a block diagram for carrier position detection, and Figure 5 is a block diagram for detecting the position of the carrier.
The figure is an explanatory diagram to explain the position detection method, Figure 6 is a waveform diagram to explain the position detection method, Figure 7 is a timing chart showing the infrared control signal and the driving state of the oscillation coil, and Figure 8 is the drive control. FIG. 9 is a flowchart showing the position detection procedure; FIG. 10 is a flowchart for carrier travel control; FIG. 11 is a schematic block diagram showing the position detection mechanism in another embodiment; FIG. 12 is an explanatory diagram showing the wiring state of the electric wires of the position detection board in the same embodiment, FIG. 13 is a block diagram of the position detection mechanism on the game machine main body side of the same embodiment, and FIG. 14 is a diagram showing the position detection means of the same embodiment. FIG. 15 is a block diagram of another embodiment showing another position detection mechanism, and FIG. 16 is a timing chart showing the state of energization of the electric wire in the same embodiment. 1... Horse racing game device, 2... Base, 3... Truck, 4... Satellite, 5... Monitor, 6
...Operation panel, 7...Coin slot, 8...Coin payout port, 9...Arm member, 10...Speaker,
11...Lighting device, 12...Display, 20
...Model horse, 20a...front legs, 20b...hind legs,
21... Jockey, 22... Support, 23... Trolley, 2
4... Front wheel, 25... Rear wheel, 26... Support member,
27...Magnet, 30...Design field, 3
1... Reinforcement plate, 32... Power supply plate, 40... Running path, 41... Position detection plate, 42... Acrylic, 5
0...Carrier, 51...Front wheel, 52...Rear wheel,
53...Base, 54...Travel motor, 55...
Steering motor, 56... Motor drive board, 57... Light receiver, 58... Oscillator board, 59
...CPU board, 60, 61...Plate member, 62...
... Compression spring, 63 ... Roller, 64 ... Roller, 65 ... Magnet, 66 ... Oscillation coil, 70
... Current collector unit, 71 ... Current collector, 72 ... Spring, 100 ... Game machine body, 101 ...
Microcomputer, 102...Infrared light emitting device, 103...Position detection unit, 104...One-chip microcomputer, 130...Electric wire, 131...X-axis position search circuit, 132...Y
Axis position search circuit, 133...Position detection circuit, 13
4... Switch SW, 135... Comparison circuit, 13
6... Switching drive circuit, 150... Position detection plate, 151... Carrier, 152... Position detection coil, 153... Light emitting device, 154... Game console body, 155... Light receiving device, 155a... Light receiving instrument, 156... counter, 156a... X counter, 156b... Y counter, 157... microcomputer, 158... amplifier, 159...
... ₁ filter, 160... ₂ filter, 161...
...Photoreceiver, 162...Amplifier, 163...Switch circuit, 164...X counter, 165...Y counter, 166...Microcomputer.

Claims (1)

[Scope of utility model registration request] In a game device where multiple moving objects move within a field to play a game, a position detection board is installed on the moving objects and has a position detection board that is stretched over the floor or ceiling of the field and has conducting wires laid in a grid pattern without touching each other. a current supply means for generating an induced electromotive force in the conductive wire or the position detection coil, a detection means for detecting the generated induced electromotive force, and a detection result of the detection means. 1. A position detection device for a moving body, comprising: position determining means for determining two-dimensional positions of each of a plurality of moving bodies.