JP2011194102A - Pinball game machine and ball sensor fraud monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve precision of monitoring new radio fraud which makes one prize-winning look like a plurality of times of prize-winning without adding a component for taking measure against frauds such as a radio sensor, a magnetic shield.SOLUTION: A pinball game machine includes: an on time measuring means to measure an on time from the detection of an on edge when a ball sensor 9 changes from off to on to the detection of an off edge when the ball sensor changes from on to off; and an on time abnormality determination means determining abnormality when the on time measured by the on time measuring means is reduced relative to the comparison reference corresponding to a minimum on time previously set and assumed. While one Pachinko ball passes through a ball sensor 9, when illegal radio waves inserting an off state by force are emitted toward the ball sensor 9 in an on period normally, one normal on period is cut off to be thin and the on time becomes shorter than the comparison reference value ONmin corresponding to the assumed minimum on time. This is detected.

Description

  The present invention is a pachinko gaming machine, an arrangement ball gaming machine, a sparrow ball gaming machine, or the like, a ball ball gaming machine that plays a game by rolling the pachinko ball to a gaming board, and a detection state as the pachinko ball penetrates. The present invention relates to a ball sensor fraud monitoring device that monitors fraud with respect to a penetrating ball sensor that switches between on and off in a non-detection state.

  The ball sensor of this type of ball game machine is a penetration type in which a detection coil is arranged around a through hole through which a pachinko ball passes one by one, as known in paragraph 0055 of FIG. The proximity switch is used exclusively.

  The principle is that the impedance of the circuit changes due to an eddy current generated by a metal pachinko ball passing through a magnetic field generated around the through-hole by a high-frequency oscillation signal supplied to the detection coil. Using this impedance change, the pachinko ball is switched from the non-detection state OFF to the detection state ON as the pachinko ball passes, and then returns to the non-detection state OFF after the pachinko ball passes. Thus, the presence or absence of penetration of the pachinko ball is detected. Therefore, it is vulnerable to electromagnetic waves in principle, and is easily exposed to a target of fraudulent action called so-called radio wave goto.

  Generally, with regard to the ball sensor on the payout side, such as a prize ball, that pays out a predetermined number of pachinko balls, the number of pachinko balls that are detected is improperly increased by pretending that they are not forced by unauthorized radio waves from the outside. It is useful to take measures against Goto acts that receive the payout. This fraud on the payout side is related to the turning on and off of the ball cutting device that pays out the pachinko balls, and various software measures such as judging abnormalities when the ball sensor is not turned on even though the ball cutting device is turned on are various. It is considered.

  On the other hand, regarding the ball sensor on the winning side that detects the pachinko ball that has entered the winning slot of the game board, whether the pachinko ball is in the non-detected state is off or is not detected due to illegal radio waves from the outside. It is useful to take measures against goto acts that forcibly turn on. Regarding the illegality on the winning side, a hardware measure such as providing a radio wave sensor that detects a radio wave in a band that causes a malfunction of the ball sensor, or providing a magnetic shield around the ball sensor, or predetermined as in Patent Document 2 Unprocessed when the number of winnings in the period exceeds the predetermined set value, or it is determined that there is an abnormality, or the total number of winnings at each winning mouth is subtracted from the total number of winnings for the payout process as in Patent Document 3. Software measures such as determining an abnormality when the number of balls is more than a predetermined number are considered.

Japanese Examined Patent Publication No. 6-36835

JP-A-7-275440

Japanese Patent Laid-Open No. 11-333097

  However, as a measure for the ball sensor on the winning side that detects the pachinko ball that has entered the prize opening, etc., if hardware anti-corrosion parts such as a radio wave sensor and magnetic shield are provided, the cost will increase, and even if Even if these anti-going parts are provided, it is difficult to completely block the influence of external radio waves, and the effect is limited.

  In addition, in the software countermeasures such as Patent Documents 2 and 3, it is judged as an error due to an unreasonable fact that the number of winning balls or the number of unprocessed balls is excessive within a certain period or to some extent. Yes, it is not possible to effectively monitor the fraud associated with the penetration of each pachinko ball in each ball sensor, especially in the middle of the penetration of one pachinko ball, it is extremely short towards the ball sensor that is normally on It is difficult to detect new fraud that pretends to be multiple prizes more than two prizes by irradiating radio waves that forcibly insert the off state only for a period of time, and furthermore, the penetrating pachinko balls are released again to the game board, There is no effect on the passing ball for the through gate that is not detected as a winning ball.

  An object of the present invention is to provide a ball game machine and ball that can improve the monitoring accuracy of a new type of radio wave goto, such as pretending to be a plurality of prizes, without adding an anti-got part such as a radio wave sensor or a magnetic shield. It is in providing a sensor fraud monitoring device.

As illustrated in FIG. 2, the ball ball game machine according to the present invention has a penetrating ball in which the game board 2 is switched between a detection state on and a non-detection state off as the pachinko ball penetrates. The game parts 82, 6, G provided with the sensor 9 are provided,
As illustrated in FIG. 3, it is assumed that the controller includes a control device CN that inputs the output of the ball sensor 9 and executes game control.

And the control device CN is
An on-time timing means T for measuring an on-time from detection of an on-edge when the ball sensor 9 is switched from off to on to detection of an off-edge when switching from on to off;
And an on-time abnormality determining means X for determining an abnormality when the on-time measured by the on-time measuring means T is less than a comparison reference value that is set in advance and corresponds to the assumed minimum on-time.

The control device CN is
An off-time measuring means F for measuring an off-time from detection of an off edge at which the ball sensor 9 is switched from on to off to detection of an on-edge at which the ball sensor 9 is switched from off to on;
It is preferable to include off-time abnormality determination means Y that determines an abnormality when the off-time measured by the off-time counting means F is less than a comparison reference value that is set in advance and corresponds to the assumed minimum off-time.

As illustrated in FIG. 15, in the above case, in the timer interrupt processing of the microprocessor CPU provided in the control device CN, resetting is performed by detecting an edge at which the ball sensor 9 is switched on and off (step 10), A counter J is provided that counts up when the edge sensor 9 is not switched on and off (step 5).
This counter J is preferably used for measuring the output of the ball sensor 9.

  Further, it is preferable that the count-up is stopped when the count value of the counter J exceeds a predetermined upper limit, and the count value is maintained until the next edge is detected (step 4).

  Further, the comparison reference value corresponding to the minimum on time or the minimum off time is individually set for each ball sensor 9 based on the actual measurement value of the ball sensor 9 measured in advance in the real fire test for the game board 2. This is preferable from the viewpoint of further improving the accuracy of monitoring.

  On the other hand, from the viewpoint of reducing the processing burden on the control device CN, the comparison reference value is a minimum value based on an actual measurement value of each ball sensor 9 measured in advance in a real fire test on the game board 2. It is preferable to set the ball sensor 9 in common as a representative value.

  Not only ball and ball machines that roll pachinko balls on the game board and enjoy the game, but also a game called parrot etc. that activates the winning line by inserting pachinko balls instead of medals and then enjoys slot machine games It can also be applied to machines. That is, it is useful for fraud monitoring of the ball sensor that detects the pachinko ball to be inserted, and a penetrating ball sensor 9 that switches between a detection state on and a non-detection state off with the penetration of the pachinko ball. It can be widely applied to ball sensor fraud monitoring devices that monitor fraud against

In this case, the ball sensor fraud monitoring device
An on-time timing means T for measuring an on-time from detection of an on-edge when the ball sensor 9 is switched from off to on to detection of an off-edge when switching from on to off;
And an on-time abnormality determining means X for determining an abnormality when the on-time measured by the on-time measuring means T is less than a comparison reference value that is set in advance and corresponds to the assumed minimum on-time.

The ball sensor fraud monitoring device
An on-time timing means T for measuring an on-time from detection of an on-edge when the ball sensor 9 is switched from off to on to detection of an off-edge when switching from on to off;
An off-time measuring means F for measuring an off-time from detection of an off edge at which the ball sensor 9 is switched from on to off to detection of an on-edge at which the ball sensor 9 is switched from off to on;
An on-time abnormality determination means X that determines that an abnormality occurs when the on-time measured by the on-time timing means T is less than a comparison reference value that is set in advance and corresponds to the assumed minimum on-time;
Off-time abnormality determining means Y that determines an abnormality when the off-time counted by the off-time measuring means F is less than a comparison reference value that is set in advance and corresponds to the assumed minimum off-time.

  When one pachinko ball penetrates the ball sensor 9 and a radio wave that forcibly inserts the off state toward the ball sensor 9 in the regular on period is illegally irradiated, one regular on The period is finely divided, and the on-time may be shorter than a comparison reference value corresponding to the assumed minimum on-time. In this case, the on-time measured by the on-time timing means T is less than the comparison reference value that is set in advance and corresponds to the assumed minimum on-time, and is determined to be abnormal by the on-time abnormality determining means X. For this reason, it is possible to improve the monitoring accuracy for a new radio wave gotter such as pretending to be a plurality of prizes, and it is possible to provide a high security ball game machine.

  When one pachinko ball penetrates the ball sensor 9 and a radio wave that forcibly inserts the off state toward the ball sensor 9 in the regular on period is illegally irradiated, one regular on In some cases, an off time shorter than a comparison reference value corresponding to an assumed minimum off time may be inserted in the middle of the period. In this case, the off time measured by the off time measuring means F is less than a comparison reference value that is set in advance and corresponds to the assumed minimum off time, and is determined to be abnormal by the off time abnormality determining means Y. For this reason, it is possible to further improve the accuracy of monitoring new radio wave gots such as pretending to be a single prize, and to provide a more secure ball game machine.

  In the above case, in the timer interrupt processing of the microprocessor CPU provided in the control device CN, the detection is performed by detecting the edge at which the ball sensor 9 is switched on / off, and the detection is performed by detecting the edge at which the ball sensor 9 is not switched on / off. If a counter J is provided, and this counter J is used to measure the output of the ball sensor 9, only the configuration on the software in the control device CN and the processing load on the software are greatly increased. Without failing to achieve the intended purpose.

  In this case, when the count value of the counter J exceeds a predetermined upper limit, the count-up is stopped, and the count value is maintained until the next edge is detected. Even if the off-state that is in the state continues for a long time, there is no harmful effect that the finite counter J reaches the upper limit of the count-up, so that it is not accidentally reset to 0. Can be done.

  When the comparison reference value corresponding to the minimum on-time or the minimum off-time is individually set for each ball sensor 9 based on the measured value of the output of each ball sensor 9 measured in advance in the actual shooting test for the game board 2, The pachinko balls that pass through the individual ball sensors 9 can take a monitoring system tailored to individual characteristics, such as whether the passing speed tends to be relatively fast or relatively slow. This can be further improved.

  The comparison reference value corresponding to the minimum on-time or the minimum off-time is based on the measured value of the output of each ball sensor 9 measured in advance in the actual shooting test for the game board 2, and the ball sensor 9 In the case of common setting, the number of comparison reference values can be reduced to the minimum, and the processing load on the control device CN can be reduced.

  According to the ball sensor fraud monitoring device including the on-time measuring means T and the on-time abnormality determining means X, it is possible to improve the monitoring accuracy for a new type of radio wave got, such as making one ball look like a plurality of balls. A security ball sensor fraud monitoring device can be provided.

  According to the ball sensor fraud monitoring device including the on-time timing means T, the off-time timing means F, the on-time abnormality determination means X, and the off-time abnormality determination means Y, one ball is made to appear as a plurality of balls. Can improve the accuracy of monitoring the new radio wave goto and provide a more secure ball sensor fraud monitoring device.

FIG. 1 is a front view of a ball game machine according to the present invention. FIG. 2 is a front view of the game board of the same ball game machine. FIG. 3 is a block diagram of the control device of the same ball game machine. FIG. 4 is a functional explanatory diagram of the ball sensor. FIG. 5 is an on-time distribution diagram of an actual electric test piece winning ball sensor according to a real fire test. FIG. 6 is an off time distribution diagram of a normal electric test piece winning ball sensor according to a real fire test. FIG. 7 is an on-time distribution diagram of the real electric test of the special electric accessory winning ball sensor. FIG. 8 is an off time distribution diagram of the real electric test of the special electric accessory winning ball sensor. FIG. 9 is an on-time distribution diagram of the real shot test of the gate passing ball sensor. FIG. 10 is an off-time distribution diagram by a real test of the gate passing ball sensor. FIG. 11 is a table summarizing the minimum on-time and the minimum off-time for each ball sensor in the actual shooting test. FIG. 12 is a table according to the first embodiment of comparison reference values corresponding to the minimum on-time and the minimum off-time for each ball sensor in consideration of the timer interruption period of the control device. FIG. 13 is a table according to the second embodiment of the comparison reference value. FIG. 14 is a table according to the third embodiment of the comparison reference value. FIG. 15 is a flowchart of software for constructing a ball sensor fraud monitoring apparatus. FIG. 16 is a time chart for explaining the effect on a new radio wave goto.

  FIG. 1 shows a pachinko gaming machine 1 to which the present invention is applied, and a game frame 10 supports a main body 11 so that the door can be opened. A front door 14 in which a glass 13 is fitted to a round window 12 is provided at the upper front portion of the main body 11, and the game board 2 is provided inside the front door 14. Below the front door 14, an upper plate 31 that catches pachinko balls, a lower plate 32 that catches pachinko balls overflowing inward, left and right speakers 33 and 34 that output sound effects, etc. A launching handle 35 is provided that can continuously launch a number of pachinko balls that are close to the individual and adjust the launch strength of the pachinko balls according to the rotational operation angle. Reference numeral 36 denotes a firing stop button for temporarily stopping the launch of the pachinko ball during the rotation operation of the firing handle 35. Front lamps 51 to 55 used for decoration, error notification and the like are provided from the front upper portion of the front door 14 to the right side.

As shown in FIG. 2, the game board 2 includes the following game components 1) to 10).
1) First ball sorting mechanism 7A
The first ball distribution mechanism 7A is arranged on the upper part of the center line of the game board 2 and is a left ball that accepts pachinko balls from the game board 2 on the left and right sides of the round ball housing 701 decorated with a jellyfish. An entrance 70L and a right ball entrance 70R are provided. The ball distribution stage 702 is provided inside, and the pachinko ball received in the inside can be transferred to the second ball distribution mechanism 7B, which will be described below, or the intermediate ball outlet 703C, or such a connection is hopeless. It is discharged from either the left ball outlet 703L or the right ball outlet 703R.

2) Second ball sorting mechanism 7B
The second ball distribution mechanism 7B has a pachinko ball released from the center ball outlet 703C of the first ball distribution mechanism 7A on the top of a ball housing 705 that is decorated with the image of the sea bottom, and the windmill K as a main component. An upper ball entrance 70C is provided for receiving balls through redistribution by the ball flow control mechanism 7C. There is a second ball sorting stage 706 made of a so-called croon inside, and the lower center where the pachinko ball received from the upper ball entrance 70C can be awarded almost at a high rate close to 100% to the first start port 81 described later. The specific ball exit 70V or the winning at the first start port 81 is released from either the lower right exit ball exit 70F which is hopeless.

3) Ball flow control mechanism 7C
The ball descent control mechanism 7C is configured by combining the windmill K and a number of game nails 30 having a unique gauge arrangement surrounding the windmill K, and is released from the center ball outlet 703C of the first ball distribution mechanism 7A. The pachinko balls are distributed either directly below or to the left or right to limit the pachinko balls to the upper ball entrance 70C of the second ball sorting mechanism 7B so that they can be achieved with a predetermined probability.

4) First start port 81
The first start port 81 is disposed immediately below the specific ball outlet 70V of the second ball sorting mechanism 7B, and only the pachinko balls released from the specific ball outlet 70V are awarded. The winning ball to the first starting port 81 is detected by a winning ball sensor 9C including a penetrating ball sensor 9 that allows a pachinko ball to penetrate from the top to the bottom. For each detected winning ball, a predetermined number, for example, 10 pachinko balls are paid out as winning balls, and are defined by the main control unit MC of the control device CN described later and updated at a high speed within a predetermined range, for example, within a range of 0 to 65535. One special symbol lottery random number is obtained from the special symbol lottery random number warehouse (random number counter) and stored in the RAM of the main control unit MC.

  The winning probability, that is, the jackpot probability in the special symbol lottery based on the winning at the first starting port 81 and the second starting port 82 described later is set to a value close to 1 even in normal time, for example, 65532/65536, It will be a big hit. After the jackpot game, the jackpot probability is increased to 65533/65536 which is a little higher than the normal 65532/65536, for example, and the winning probability in the normal symbol lottery described later is far from the normal low value such as 6/65522. To a high value such as 65520/65522, and the maximum opening time for one opening operation of the second starting port 82 is increased from a relatively short time of normal time, for example, 0.2 seconds to a relatively long time, for example, 5.5. Enter the probability-changing game with a time-shortening function by opening the extension to seconds. At this time, the probability variation game with a short function is repeated up to a predetermined continuous winning allowable number of times, for example, 30 times.

5) Through gate G
The through gate G allows pachinko balls rolling on the surface of the game board 2 to pass through one by one from top to bottom, and after passing through, the pachinko balls are released again onto the surface of the game board 2. 2 is arranged above the right region as viewed from the player side across the approximate center line. The passage of the pachinko ball to the through gate G is detected by a gate passing ball sensor 9G including a penetrating ball sensor 9 that penetrates the pachinko ball from top to bottom. For each detected passing ball, one normal symbol lottery random number is obtained from a random symbol lottery (random number counter) defined by the main control unit MC and updated at high speed within a predetermined range, for example, within a range of 0 to 65521. And stored in the RAM of the main control unit MC.

6) Grand Prize Winner 6
The big winning opening 6 is opened several times when a special symbol lottery is won and a big win game is performed, and is arranged below the through gate G in the right area of the game board 2. At the time of the opening operation, the horizontally wide movable plate 60 which is normally closed in the upright posture is tilted forward with the lower end as an axis so that the mouth is opened obliquely upward, and flows down mainly to the right area of the game board 2 Easily allow a pachinko ball to win. The winning ball to the special winning opening 6 is detected by a special electric accessory winning ball sensor 9S composed of a penetrating ball sensor 9 that allows a pachinko ball to penetrate from top to bottom. For each detected winning ball, a predetermined number, for example, six pachinko balls are paid out as winning balls.

  For each opening operation (one round) of the grand prize winning opening 6, the special winning prize winning ball 6 is temporarily closed by a winning ball first detected by the special electric accessory winning ball sensor 9S, for example, a predetermined value of about 1 second. After an interval, the special winning opening 6 is opened again and repeated for a predetermined upper limit number of rounds, for example, 2 rounds. The maximum opening time of one round in which the grand prize winning opening 6 is opened once is set to a predetermined long time, for example, 30 seconds, but since the number of counts allowed to win during one round is one, In many cases, one round is completed with a single prize without waiting for the maximum opening time to elapse.

  Accordingly, the number of prize balls that can be obtained in one big hit game is as small as 1 count × 6 prize balls × 2 rounds = 12 pieces. However, after winning the jackpot game, it is possible to continue the jackpot by entering a probability variable game with a short time function and winning by a special symbol lottery by winning the second starting port 82. The special prize winning ball sensor 9S detects the first prize ball and the special prize opening 6 is closed. However, there is a possibility that two or more pachinko balls will enter the large prize opening 6 almost simultaneously. The number of winning balls per round may be 2 or more.

7) Second start port 82
The second start port 82 is opened once when a normal symbol lottery is won, and the structure as a part is the same as that of the big winning port 6. In the right area of the game board 2, the game board 2 is arranged below the big prize opening 6, and when the opening operation is performed, the horizontally movable plate 80 that is normally in an upright posture is closed and tilted forward with the lower end as an axis. With the mouth open, the pachinko balls that flow down mainly to the right area of the game board 2 are easily allowed to win. The winning ball to the second starting port 82 is detected by an ordinary electric accessory winning ball sensor 9N including a penetrating ball sensor 9 that penetrates a pachinko ball from top to bottom. For each detected winning ball, a predetermined number, for example, six pachinko balls are paid out as winning balls, and one special symbol is drawn from the random symbol random number counter (random number counter), as in the case of winning the first starting port 81. A random number for lottery is acquired and stored in the RAM of the main control unit MC.

  The opening operation of the second start port 82 ends when the maximum opening time has elapsed or when the maximum number of winnings, for example, ten winning balls is detected. In the special symbol lottery with the winning ball to the second starting port 82 as well as the special symbol lottery with the winning ball to the first starting port 81, it is a big hit every time, and is arranged above the second starting port 82 during the big hit game. The large winning opening 6 is opened, and the upper part of the second start opening 82 below the cover is covered with eaves, so that the pachinko ball is slightly difficult to enter the second start opening 82 itself. Therefore, even if the maximum open time is 5.5 seconds in the probability variation game with a short time function, in many cases, the number of wins is an appropriate number that is less than the maximum wins.

8) Left decoration winning unit 25
The left decoration winning unit 25 is disposed below the left area of the game board 2 and includes general winning ports 41 and 42 for paying out a predetermined number, for example, ten pachinko balls as winning balls for each winning ball. The winning balls to the winning ports 41 and 42 are respectively detected by winning ball sensors 9U and 9L including penetrating ball sensors 9 that allow the pachinko balls to pass through from top to bottom.

9) Right decoration winning and display unit 26
The right decoration winning and displaying unit 26 is disposed below the right region of the game board 2 and includes a general winning opening 43 for paying out a predetermined number, for example, ten pachinko balls as winning balls for each winning ball. The winning ball to the winning opening 43 is detected by a winning ball sensor 9L including a penetrating ball sensor 9 that allows a pachinko ball to penetrate from top to bottom.

  Further, the right decoration winning and displaying unit 26 includes a special symbol display device including a 7-segment LED for deriving whether or not the jackpot in the special symbol lottery based on the winning ball to the first starting port 81 or the second starting port 82 is derived. Provide SD. When winning at the first start port 81 or the second start port 82, after a random display change for a predetermined change time, for example, 0.5 seconds to 1 second, the big hit time is “7”, for example, Each “-” (bar) is stopped, and the success or failure of the jackpot is derived. After winning the jackpot, a jackpot game is played. e1, e2, e3, and e4 light up the stored number of special symbol lottery random numbers that have been effectively acquired and stored up to a predetermined upper limit number, for example, four, for the display fluctuation waiting in the special symbol display device SD This is a special symbol hold indicator to be displayed.

  Further, the right decoration winning and displaying unit 26 includes a normal symbol display device ND including a green lamp GL and a red lamp RL for deriving whether or not the normal symbol lottery is based on the ball passing to the through gate G. When the pachinko ball passes through the through gate G, after a display fluctuation caused by alternately lighting the green lamp GL and the red lamp RL for a predetermined fluctuation time, for example, 0.4 seconds, for example, the green lamp GL is lit at the time of winning, At the time of loss, for example, the red lamp RL is turned on to stop each, and the normal symbol lottery is determined. After winning derivation in the normal symbol lottery, the second start port 82 is opened for a predetermined maximum opening time. n1, n2, n3, and n4 turn on the number of reserved random numbers for normal symbol lottery that is effectively acquired and stored up to a predetermined upper limit number, for example, four, for waiting for display fluctuations on the special symbol display device ND This is a normal symbol hold indicator to be displayed.

10) Others Rails 20 and 21 that divide a substantially circular game area 200 and guide a pachinko ball launched by the launch handle 35, a ball return prevention piece 22, a ball stopper 23, and a decoration gate without a ball sensor that allows the pachinko ball to penetrate. 24, wind turbines 27 and 28 on the upper left and right, and a lower out port 29 for discharging pachinko balls that missed the prize.

  FIG. 3 shows a control device CN that controls the game on the game board 2. A main control unit MC including a microprocessor including a CPU, a ROM, and a RAM, a first peripheral control unit SC1, and a second peripheral control unit SC2. The main controller MC has a winning ball sensor 9C at the first starting port 81, a normal electric ball winning ball sensor 9S at the second starting port 82, and a special electric role at the large winning port 6 via the I / O port IN0. The prize winning ball sensor 9S, the gate passing ball sensor 9G of the through gate G, and the winning ball sensors 9U, 9L, 9R of the general winning ports 41, 42, 43 are input. A command is transmitted in a one-way manner from the main control unit MC to the peripheral control units SC1 and SC2 via the relay board CB. Data is transmitted and received bidirectionally between the peripheral controllers SC1 and SC2.

  Each ball sensor 9 (9C, 9N, 9S, 9G, 9U, 9L, 9R) includes a through hole 90 through which the pachinko ball penetrates in the thickness direction of the rectangular body 91, and is marked on the body 91. The pachinko balls are arranged with the surface up, and vertically penetrate the pachinko balls from top to bottom. For these ball sensors 9, for example, a penetrating proximity switch TL-PP153 manufactured by OMRON is used.

  The ROM of the main control unit MC stores a game program responsible for main control of games including special symbol lottery and normal symbol lottery, and the following means a) to d) are stored on the ROM game program. The ball sensor fraud monitoring device is configured on software in cooperation with the RAM that is constructed and used as a work area. Among the ball sensors 9, at least the ordinary electric accessory winning ball sensor 9 </ b> N of the second start opening 82, the special electric accessory winning ball sensor 9 </ b> S of the large winning opening 6, and the through gate G, which have a great influence on fraud. The gate passing ball sensor 9G is an object to be monitored, and at least these three ball sensors 9N, 9S, 9G constitute a fraud monitoring device. Of course, all the ball sensors 9 may be monitored and a fraud monitoring device for all the ball sensors 9 may be configured.

A) On-time timing means T
The on-time measuring means T is configured to detect, for each of the monitoring target ball sensors 9 (9N, 9S, 9G,...) The on-time from the detection state ON to the detection of the off-edge switching from the non-detection state OFF is counted.

B) Time-off means F
The off-time measuring means F is configured to detect, for each of the ball sensors 9 (9N, 9S, 9G,...) To be monitored, from detection of an off edge that is switched from on to the non-detected state. The off-time from when the non-detection state is turned off to when the on-edge is detected when the detection state is turned on is counted.

C) On-time abnormality determination means X
The on-time abnormality determining means X is a minimum on-time that is set in advance and assumed for the on-time measuring means T for each of the ball sensors 9 (9N, 9S, 9G...) To be monitored. When it is less than a considerable comparison reference value, it is determined as abnormal.

D) Off time abnormality determination means Y
The off-time abnormality determining means Y is a minimum off-time that is set in advance and assumed for the off-time counting means F for each ball sensor 9 (9N, 9S, 9G...) To be monitored. When it is less than a considerable comparison reference value, it is determined as abnormal.

  From the main control unit MC, the special symbol display device SD, the normal symbol display device ND, the special symbol hold display devices e1 to e4, the normal symbol hold display devices n1 to n4, and the big prize are received via the driver circuit DR0. An opening / closing drive unit 6D by a solenoid or the like for opening / closing the movable plate 60 of the opening 6 and an opening / closing drive unit 8D by a solenoid or the like for opening / closing the movable plate 80 of the second start port 82 are mainly controlled.

  The first peripheral control unit SC1 mainly controls sound effects output from the speakers 33 and 34 via the driver circuit DR1. The second peripheral controller SC2 mainly controls lighting display modes of various lamps built in the front lamps 51 to 55 and the game board 2 through the driver circuit DR2. In FIG. 3, the pachinko ball launch-related, prize-ball payout-related, and power-related circuits are omitted, and the first ball sorting mechanism 7A and the second ball sorting that are not directly related to the player's profit are omitted. The ball sensor for performance provided in the mechanism 7B etc. is omitted.

  As shown in FIG. 4, the ball sensor 9, that is, the winning ball sensors 9N, 9S, 9C, 9U, 9L, 9R and the gate passing ball sensor 9G all have the same configuration, and an annular detection coil 901 so as to surround the through hole 90. And a magnetic field is generated around the through hole 90 by a high-frequency oscillation signal supplied to the detection coil 901 from a Colpitts-type or Hartley-type oscillation circuit 902 mounted on the substrate 92. When the metal pachinko balls P1 and P2 pass through, the circuit constant, that is, the impedance of the circuit changes, such as the oscillation being temporarily stopped by the eddy current based on the electromagnetic induction action. This is detected by the detection circuit 903, the switching circuit 904 such as a transistor is turned on and off, and a detection output signal is taken out from the terminal 93 of the output circuit 905. In FIG. 4, the power supply line is omitted.

  The detection output signal is switched from OFF, which is the non-detection state of the pachinko ball, to ON, which is the detection state of the pachinko ball, with the penetration of the pachinko ball. Is done. The detection output signal may be a high level signal such as 5 volts off when the pachinko ball is not detected, and a low level signal such as 0 volts when the pachinko ball is detected, Of course, it may be a low level signal such as 0 volts when the pachinko ball is not detected and a high level signal such as plus 5 volts when the pachinko ball is detected as off.

  When a certain pachinko ball P1 moves inside the through hole 90, the point of ON where the pachinko ball P1 is in a detection state indicated by a solid line is a, and the pachinko ball P1 is moved further and the phantom line of a two-dot chain line The distance L between the point a and the point b is the detection range of the pachinko ball P1, where b is the off point that is in the non-detection state indicated by. Generally, this detection range L is the diameter of the pachinko ball. Even if two or more pachinko balls move in close contact with each other in a daisy chain, or even if the preceding pachinko ball P1 moves to the off-point b where it is in a non-detection state, it is as small as 4 to 8 mm with respect to 11 mm. The succeeding pachinko ball P2 does not yet reach the ON point a that is in the detection state.

  Therefore, even when two or more pachinko balls P1 and P2 are in close contact with each other and pass through the ball sensor 9, the detection state of the preceding pachinko ball P1 and the detection state of the subsequent pachinko ball P2 are detected. An OFF that is always in a non-detection state is inserted between the ON and the ball sensor 9, and the ball sensor 9 can always detect pachinko balls one by one.

  FIG. 5 shows the result of a 10-hour real fire test on the game board 2 (test in which a pachinko ball is actually launched for 10 hours on the game board 2; the same applies hereinafter), and the pachinko balls won in the second starting port 82 are shown in FIG. 2 is a frequency distribution diagram of the on-time (ON time) actually detected by the normal electric accessory winning ball sensor 9N, which is the ball sensor 9 provided in the inside of the start port 82, and the ON time in 1 millisecond (1 msec) increments. The frequency (number of pachinko balls) is tabulated for each category. Here, the on-time (ON time) refers to the detection of the on-edge when the ordinary electric accessory winning ball sensor 9N is switched from the off state in which the pachinko ball is not detected to the on state in which the pachinko ball is detected, and from the on state to the non-detected state. This is the time until the detection of the off edge when the detection state is switched off.

  The number of pachinko balls that won the second starting port 82, that is, the number of pachinko balls that passed through the ordinary electric accessory winning ball sensor 9N was 1595 in total, and the most frequent was the segment of 35 to 36 msec. Each of the 296 pachinko balls had an on-time of 35 to 36 msec. In addition, the cumulative number of frequencies belonging to the range of 31 to 39 msec reached 1329, which is about 83% of the total, and for each of the pachinko balls exceeding 80%, the on-time of each one tended to be relatively long.

  This is because the second starting port 82 accepts the pachinko ball in a state where the movable plate 80 which is wide horizontally is tilted forward with the lower end as the axis and the mouth is opened obliquely upward when the second starting port 82 is opened. 80, the initial speed of the pachinko ball immediately before passing through the ordinary electric accessory winning ball sensor 9N is weakened, and the second start port 82 allows a plurality of winnings during one opening operation, The pachinko balls flow into each other relatively slowly so as to lick the edge of the entrance of the normal electric accessory winning ball sensor 9N due to interference with each other, and a unique game around the second starting port 82 as shown in FIG. The point with the gauge arrangement of the nail 30 is considered as the main factor.

  However, since there are some pachinko balls that jump almost directly into the ordinary electric accessory winning ball sensor 9N or in the vicinity thereof, there may be a relatively short on-time of 25 msec or less, and the shortest on-time of 16 to 17 msec. There was also only one frequency belonging to the category, and the minimum value ONmin of the on-time was 16.2 msec.

  FIG. 6 shows a case where a continuous winning is made within a relatively short period of time, for example, within 1 second, as a result of a 10-hour real fire test on the game board 2, and the 1 second is extracted. It is a frequency distribution diagram of the off time (OFF time) actually detected by the ordinary electric accessory winning ball sensor 9N for consecutive winnings within, and the frequency (preceding) for each division of the OFF time in increments of 100 milliseconds (100 msec) This is the total number of pachinko balls following the pachinko ball.

  The reason why the distribution of the OFF time is shown by extracting a relatively short predetermined period is that the OFF time continues for a long time unless the second start port 82 is opened. It is. Here, the off time (OFF time) is from the detection of the off edge where the normal electric accessory winning ball sensor 9N switches from the on state, which is the detection state of the pachinko ball, to the off state, which is the non-detection state, from the off of the non-detection state. This is the time until the detection of the on-edge when the detection state is switched on.

  The second starting port 82 accepts a pachinko ball under a relatively long-term opening operation condition with a maximum opening time of 5.5 seconds during a probability variation game with a short-time function, and a continuous winning can be expected originally It is. However, the initial speed of each pachinko ball just before passing through the ordinary electric accessory winning ball sensor 9N is weakened by the wide movable plate 80, and two or more pachinko balls are usually spaced apart by interference or the like. The points that flow into the electric winning award sensor 9N, the point that a unique game nail 30 is arranged around the second starting port 82 as shown in FIG. Most of the off-time is relatively long, such as 100 msec or more.

  However, since two or more pachinko balls may pass through the ordinary electric accessory winning ball sensor 9N in a daisy chain or similar situation, the off time may be relatively short of 100 msec or less. At the same time, there are only four frequencies belonging to the shortest off time section of 0 to 100 msec, and the minimum value OFFmin of the off time was 38.5 msec.

  FIG. 7 shows a special electric accessory prize ball sensor 9S, which is a ball sensor 9 provided with a pachinko ball that has won a prize winning opening 6 as a result of a 10-hour real fire test on the game board 2. It is a frequency distribution diagram of the actually detected ON time (ON time), and counts the frequency (number of pachinko balls) for each ON time segment in 1 millisecond (1 msec) increments. Here, the on-time (ON time) refers to detection of an on-edge where the special electric accessory winning ball sensor 9S switches from off, which is a non-detection state of a pachinko ball, to on, which is a detection state, and from detection state on to non-detection. This is the time until the detection of the off edge when the detection state is switched off.

  The number of pachinko balls that won the grand prize opening 6, that is, the number of pachinko balls that passed through the special electric accessory winning ball sensor 9S was 2546 in total, and the most frequent was the section of 28 to 29 msec, Each of the 659 pachinko balls had an on-time of 28 to 29 msec. In addition, the cumulative number of frequencies belonging to the range of 26 to 31 msec reaches 2152, which is about 85% of the total, and for each of the pachinko balls that exceed 80%, the on-time of each is the normal electric power of the second start port 82 Although it is shorter than that of the prize-winning ball sensor 9N, it tends to be relatively long.

  This is because the prize winning opening 6 accepts the pachinko ball in a state where the wide movable plate 60 is tilted forward with the lower end as the axis and the mouth is opened obliquely upward during the opening operation, and the wide movable plate 60 is wide. This reduces the initial speed of the pachinko ball immediately before passing the special electric accessory winning ball sensor 9S, while the large winning opening 6 has two or more pachinko during one opening operation (one round). Even if the ball happens to win almost at the same time, basically only one pachinko ball (1 count) is allowed, and the deceleration due to the interference of two or more pachinko balls is more than the case of the second starting port 82. The main factors are considered to be a small point and a unique gauge arrangement of the game nail 30 around the special winning opening 6 as shown in FIG.

  However, since there are some pachinko balls that jump directly into the special electric accessory winning ball sensor 9S or in the vicinity thereof, there may be a relatively short on-time of 25 msec or less, and the shortest on-time of 17-18 msec. There are only three frequencies belonging to this category, and the on-time minimum value ONmin was 17.3 msec. While the ONmin of the ordinary electric accessory winning ball sensor 9N was 16.2 msec, it was slightly longer because of the gauge arrangement of the game nail 30 around the big winning port 6 and so on. The difference is considered to be a factor.

  FIG. 8 shows a case where a continuous winning is made within a relatively short predetermined period of time, for example, within 1 second, as a result of a 10-hour real fire test on the game board 2, and within 1 second. It is a frequency distribution diagram of the off time (OFF time) actually detected by the special electric accessory prize ball sensor 9S for the continuous winnings of No., and the frequency (preceding pachinko machine) for each of the OFF time categories in 100 millisecond (100 msec) increments. The number of pachinko balls following the ball).

  The distribution of the OFF time is shown by extracting a relatively short predetermined period, as in the case of the second start port 82, the OFF time continues for a long time unless the grand prize winning port 6 is opened. This is because it is a short OFF time. Here, the off time (OFF time) is from the detection of the off edge where the special electric accessory winning ball sensor 9S switches from the on state, which is the detection state of the pachinko ball, to the off state, which is the non-detection state, from the off of the non-detection state. This is the time until the detection of the on-edge when the detection state is switched on.

  The grand prize winning opening 6 basically allows only one pachinko ball (1 count) even though two or more pachinko balls may happen to win almost simultaneously during the opening operation (one round). To do. Therefore, in the distribution in which a period shorter than 1 second corresponding to the interval time between rounds is extracted, the frequency of 700 to 1000 msec is 0, and the movable plate 60 returns vertically by the first winning ball in one round. When the big winning opening 6 was closed, the subsequent winning balls inside the big winning opening 6 were detected within 700 msec at the latest.

  As for the special winning opening 6, the frequency belonging to the section of 100 to 200 msec is the largest. The off time was slightly shorter than in the case of the second starting port 82 because the movable plate 60 was returned to the upright position by the first winning ball and the large winning port 6 was closed. It is considered that a certain subsequent winning ball tends to be guided to the special electric accessory winning ball sensor 9S. There are also 17 frequencies belonging to the shortest off time section of 0 to 100 msec, and the minimum value OFFmin of the off time was 29.8 msec.

  FIG. 9 shows an on-time when a pachinko ball that has passed through the through gate G is actually detected by the gate passing ball sensor 9G, which is the ball sensor 9 provided in the through gate G, as a result of a 10-hour real fire test on the game board 2. ON time) frequency distribution chart, in which the frequency (number of pachinko balls) is tabulated for each ON time segment in 1 millisecond (1 msec) increments. Here, the on-time (ON time) refers to the detection of the on-edge when the gate passing ball sensor 9G switches from the off state, which is the non-detection state of the pachinko ball, to the on state, which is the detection state, and from the on state to the non-detection state. This is the time until the detection of an off edge that switches to off.

  The total number of pachinko balls that passed through the through-gate G, that is, the number of pachinko balls that passed through the gate-passing ball sensor 9G was 5005, and the most frequent was the segment of 20 to 21 msec, with 866 pachinko balls Each of the balls had an on-time of 20 to 21 msec. In addition, the cumulative total of the frequencies belonging to the range of 18 to 24 msec reached 4264, which is about 85% of the whole, and for each of the pachinko balls exceeding 80%, the on-time of each one tended to be relatively short.

  This is because the through gate G passes pachinko balls rolling on the surface of the game board 2 one by one from top to bottom, and after passing through, the pachinko balls are released again on the surface of the game board 2. Even if the initial speed of the pachinko ball flowing into the through gate G is moderately weakened by the game nail 30 arranged at the upper part of the gate G, the pachinko ball is relatively smoothly moved from the top to the bottom of the gate passing ball sensor 9G. It is because it is thought that it penetrates.

  There were only two frequencies belonging to the shortest on-time section of 9 to 10 msec, and the minimum value ONmin of the on-time was 9.3 msec.

  FIG. 10 shows a case where a continuous ball passing within a relatively short period of time, for example, within one second, for example, within one second, is extracted for the through gate G as a result of a 10-hour real fire test on the game board 2, and within one second. It is a frequency distribution diagram of the OFF time (OFF time) actually detected by the gate passing ball sensor 9G for the continuous ball passing, and the frequency (in the preceding pachinko ball) for each OFF time segment in 100 millisecond (100 msec) increments. The number of subsequent pachinko balls).

  The distribution of the OFF time is shown by extracting a relatively short period of time, and the OFF time continues unless the pachinko ball passes through the through gate G. Because time. Here, the off time (OFF time) is the detection of the off edge when the gate passing ball sensor 9G switches from the on state, which is the detection state of the pachinko ball, to the off state, which is the non-detection state, and from the non-detection state to the detection state. This is the time until detection of an on-edge that switches on.

  The through gate G always accepts a pachinko ball and allows its passage, and continuous ball passage is inherently likely to occur. However, it is considered that there are many cases where the interval between pachinko balls that sequentially flow into the through gate G is moderately widened by the game nail 30 arranged at the upper part of the through gate G. Assuming that the off-time distribution extracted within 1 second is assumed to have a peak at 600 to 700 msec, and most of the off-time is relatively long at 300 msec or more.

  Of course, two or more pachinko balls continuously flow into the through gate G in a daisy chain or similar situation, and may pass through the gate passing ball sensor 9G continuously, so a relatively short off of 100 msec or less. There are not a few cases where the time is short, and there are 96 frequencies belonging to the shortest off time section of 0 to 100 msec, and the minimum value OFFmin of the off time is 22.3 msec.

  FIG. 11 is a table that summarizes the actual measurement values of the minimum on-time ONmin and the minimum off-time OFFmin for each of the ball sensors 9N, 9S, and 9G by the above-described real fire test. The other ball sensors 9, that is, the winning ball sensor 9C of the first starting port 81 and the winning ball sensors 9U, 9L, 9R of the general winning ports 41, 42, 43 are not actually measured. The sensors 9C, 9U, 9L, and 9R are arranged inside the depth direction with respect to the surface of the game board 2, and pass a pachinko ball having a small initial speed that is turned to the back of the game board 2 from the top to the bottom. Therefore, even the shortest one is considered not to fall below the minimum on-time ONmin = 9.3 msec and the minimum off-time OFFmin = 22.3 msec for the through gate G.

  FIG. 12 shows the ball sensors 9N, 9S, and 9G determined in consideration of a predetermined timer interruption period of the CPU in the main control unit MC of the control device CN and based on the actual measurement value by the real fire test of FIG. 3 is a table according to Example 1 in which comparison reference values corresponding to minimum on-time and minimum off-time are summarized. The predetermined timer interruption period is, for example, 800 microseconds (μsec) = 0.8 msec.

  The comparison reference value corresponding to the minimum ON time for the ordinary electric accessory winning ball sensor 9N is set to 20 interrupts, and 0.8 × 20 = 16 msec is the closest value to the actually measured value of the minimum ON time 16.2 msec. It is an optimal evaluation value that can be suspected of being a radio wave. The comparison reference value corresponding to the same minimum OFF time is set at 48 interrupts, and 0.8 × 48 = 38.4 msec is a lower value closest to 38.5 msec of the actually measured value of the minimum OFF time. It is the optimal evaluation value that can be doubted.

  The comparison reference value corresponding to the minimum ON time for the special electric accessory winning ball sensor 9S is set at 21 interrupts, and 0.8 × 21 = 16.8 msec is the largest measured value of 17.3 msec of the minimum ON time. The value is close to the bottom, and is an optimal evaluation value that can be suspected of being a radio wave. The comparison reference value corresponding to the same minimum OFF time is set at 37 interrupts, and 0.8 × 37 = 29.6 msec is a lower value closest to 29.8 msec of the actually measured value of the minimum OFF time. It is the optimal evaluation value that can be doubted.

  The comparison reference value corresponding to the minimum ON time for the gate passing ball sensor 9G is set to 11 interrupts, and 0.8 × 11 = 8.8 msec is the lower value closest to the measured value of 9.3 msec of the minimum ON time. It is an optimum evaluation value that can be suspected of being a radio wave. The comparison reference value corresponding to the minimum OFF time is set to 27 interrupts, and 0.8 × 27 = 21.6 msec is a lower value closest to 22.3 msec, which is the actually measured value of the minimum OFF time. It is the optimal evaluation value that can be doubted.

  The comparison reference value is set by the number of timer interruptions as described above because each of the ball sensors 9 including the ball sensors 9N, 9S, and 9G to be monitored for each timer interruption period of the main control unit MC. This is because the detection output is read, and each ball sensor 9 is detected for each ball sensor 9 as to whether it is in a pachinko ball detection state or off in a pachinko ball non-detection state.

  Further, for each of the ball sensors 9 to be monitored, in the timer interrupt processing of the CPU of the main control unit MC, resetting is performed by detecting an edge at which the on / off of the ball sensor 9 is switched, and an edge at which the on / off of the ball sensor 9 is not switched. The counter J that counts up when it is not detected is defined in the RAM work area of the main control unit MC, and this counter J is used to measure the on time and the off time of the ball sensor 9 to be monitored. The counter J is referred to as a normal electric accessory winning ball sensor 9N (counter J1), a special electric accessory winning ball sensor 9S (counter J2), and a gate passing ball sensor 9G (counter J3). As described above, the definition is made for each ball sensor 9 to be monitored.

  FIG. 13 is a table according to Example 2 in which comparison reference values corresponding to the minimum on-time and the minimum off-time for each ball sensor 9 are summarized. The winning ball sensor 9C at the first start port 81 and the winning ball sensors 9U, 9L, 9R of the general winning ports 41, 42, 43 are also added, and all the ball sensors 9 directly related to the player's profit are monitored for fraud. It is what I did.

  Although there are no actual measured values for the winning ball sensor 9C of the first starting port 81 and the winning ball sensors 9U, 9L, 9R of the general winning ports 41, 42, 43, as described above, the minimum on-time ONmin and the minimum for the through gate G Since it is considered that the off-time OFFmin is not lower, it is the same as that for the through gate G, and the minimum on-time ONmin = 11 [interrupt] and the minimum off-time OFFmin = 27 [interrupt], respectively. .

  FIG. 14 is a table according to Example 3 in which comparison reference values corresponding to the minimum on time and the minimum off time for each ball sensor 9 are summarized, and all the ball sensors 9 directly related to the player's profit are incorrect. From the viewpoint of reducing the processing burden on the control device CN, the comparison reference value is based on the measured value of the output of each ball sensor 9 measured in advance in the real fire test on the game board 2. The ball sensor 9 is commonly set as a representative value for the through gate G which is the minimum value. That is, for all the ball sensors 9, the minimum on time ONmin = 11 [interrupt] and the minimum off time OFFmin = 27 [interrupt] are set.

  Note that the ball sensors 9 to be monitored are limited to the ordinary electric accessory winning ball sensor 9N, the special electric accessory winning ball sensor 9S, and the gate passing ball sensor 9G, which correspond to the minimum on time and the minimum off time. The reference value for the through gate G that is the minimum value may be a representative value, and may be commonly set to the minimum on-time ONmin = 11 [interrupt] and the minimum off-time OFFmin = 27 [interrupt].

  FIG. 15 is a subroutine of a ball sensor monitoring process executed for each ball sensor 9 to be monitored every timer interrupt period of the main control unit MC, that is, in this example every 800 μsec, and includes the on-time timer T and the off-timer. A ball sensor fraud monitoring device including a time measuring means F, the on-time abnormality determining means X, and the off-time abnormality determining means Y is constructed on software.

  This subroutine is performed every 800 μsec for the ordinary electric accessory winning ball sensor 9N, the special electric accessory winning ball sensor 9S, the gate passing ball sensor 9G, and other winning ball sensors 9C, When 9U, 9L, and 9R are included, each of these ball sensors 9C, 9U, 9L, and 9R is always called and executed once.

  Hereinafter, when the ball sensor 9 is referred to, the ball sensor 9N is passed through the gate if the ball sensor related to the subroutine call is a normal electric accessory winning ball sensor 9N, and the special ball sensor 9S is passed through the gate. The ball sensor 9G is the ball sensor 9G, the ball sensor 9C is the ball sensor 9C, the ball sensor 9U is the ball sensor 9U, the ball sensor 9L is the ball sensor 9L, and the ball sensor 9R is the ball sensor. It means the sensor 9R.

  First, in step 1, in the variable A and variable B that are defined in the RAM work area of the main control unit MC and in which the detection output state of the ball sensor 9 is stored, the detection output of the ball sensor 9 is directed to the variable B. The value of the variable A stored in the previous state (0 if it was OFF, 1 if it was ON) is saved, and in step 2, the ball sensor 9 is stored in the variable A. The current state of the detected output is stored as 0, that is, 0 when it is OFF, and 1 when it is ON.

  Subsequently, in Step 3, the exclusive OR operation of the variable A and the variable B is performed, and the calculation result is 1 when either the current time is 1 and the previous time is 0, or the current time is 0 and the previous time is 1. It is determined whether or not the edge of the detection output has been detected. If the current time is 1 and the previous time is 1, or the current time is 0 and the previous time is 0, the calculation result is 0, and no edge is detected.

  If the calculation result is not 1 but 0 and no edge is detected, whether or not the count value of the counter J defined for measuring the on time or the off time of the ball sensor 9 in step 4 is greater than or equal to a predetermined upper limit value. For example, it is determined whether or not 65535, which is the maximum value of 2 bytes, has been reached. If it is not equal to or greater than the upper limit, in step 5, the count value of the counter J is incremented by 1, and the subroutine is exited. Thereby, the ON time or OFF time of the ball sensor 9 is counted with 800 μsec as one unit.

  Actually, if the ball sensor for calling the subroutine is the normal electric accessory winning ball sensor 9N, the counter J1 for the ball sensor 9N, and if the special electric accessory winning ball sensor 9S is the counter J2 for the ball sensor 9S. If the ball passing ball sensor 9G, the ball sensor 9G counter J3, if the winning ball sensor 9C, the ball sensor 9C counter J4, if the winning ball sensor 9U, the ball sensor 9U counter J5, the winning ball sensor If it is 9L, the on time or off time will be entered in the counter J6 for the ball sensor 9L, and if it is the winning ball sensor 9R, it will be entered in the counter J7 for the ball sensor 9R.

  When the counter J is equal to or greater than the upper limit value, that is, 800 μsec × 65535 = approximately 52.4 seconds or more, the count up of the counter J is stopped and the count value is maintained at 65535 until the next edge is detected in step 3. For this reason, even if the on-time or off-time, particularly the off-time continues for a long time, there is no adverse effect that the finite counter J is inadvertently reset to 0, and the time measurement and monitoring can be performed satisfactorily on the software.

  In step 3, when the exclusive OR calculation result of variable A and variable B is 1 and there is an edge detection, in step 6, whether variable A in which the current state is stored is 1 (ON) or not. In the case of NO determination, that is, in the case of 0 (OFF) instead of 1, it means that ON (ON) is finished and an OFF (OFF) edge is detected, and the counter J measures the ON (ON) time. The result is in it. Then, in step 7, it is determined whether or not the ON time of the counter J is less than ONmin [interrupt], which is a value corresponding to the minimum ON time.

  The minimum ON (ON) time equivalent value ONmin [interrupt], which is the comparison reference value in step 7, is 20 for the ordinary electric accessory winning ball sensor 9N in the first embodiment, and the special electric accessory winning ball sensor 9S. Is 21, and the gate passing ball sensor 9G is 11. Further, in the second embodiment, 20 for the ordinary electric accessory winning ball sensor 9N, 21 for the special electric accessory winning ball sensor 9S, and about the gate passing ball sensor 9G and other winning ball sensors 9C, 9U, 9L, 9R. Is 11. Furthermore, in Example 3, it is 11 about all the ball sensors 9N, 9S, 9G, 9C, 9U, 9L, and 9R.

  If it is determined in step 6 that the variable A in which the current state is stored is 1 (ON), it means that the ON (ON) edge has been detected after the OFF (OFF) is completed, and the counter J Contains the time measurement result of the OFF time. In step 8, it is determined whether or not the OFF time of the counter J is less than OFFmin [interrupt], which is a value corresponding to the minimum OFF time.

  The minimum OFF (OFF) time equivalent value OFFmin [interrupt], which is the comparison reference value in step 8, is 48 for the ordinary electric accessory winning ball sensor 9N in the first embodiment, and the special electric accessory winning ball sensor 9S. Is 37, and the gate passing ball sensor 9G is 27. Further, in the second embodiment, 48 for the ordinary electric accessory winning ball sensor 9N, 37 for the special electric accessory winning ball sensor 9S, and about the gate passing ball sensor 9G and other winning ball sensors 9C, 9U, 9L, 9R. Is 27. Furthermore, in Example 3, it is 27 about all the ball sensors 9N, 9S, 9G, 9C, 9U, 9L, and 9R.

  If it is determined in step 7 that the ON (ON) time of the counter J is less than ONmin [interrupt], which is the minimum ON (ON) time equivalent value (determination that an abnormality has been detected), or in step 8 When the determination of YES (determination of detecting an abnormality) is made that OFF (OFF) time of the counter J is lower than OFFmin [interrupt], which is a value corresponding to the minimum OFF (OFF) time, in step 9, the main control unit MC The radio wave detection error flag defined in the RAM work area is set to 1 and turned ON. In step 10, the counter J is reset and set to 0, and the subroutine is exited.

  When the radio wave detection error flag is turned ON, information on the flag ON is transmitted from the main control unit MC to the second peripheral control unit SC2 via the first peripheral control unit SC1, and among the front lamps 51 to 55, the error is detected. A specific lamp assigned for notification, for example, two lamps 53 and 54 (see FIG. 1) on the upper right side are turned on in a specific manner, for example, alternately. In this way, the store clerk is informed that there is a suspicion that the radio wave may be suspicious, so that it is possible to confirm whether or not there is an illegal act.

  Considering that there is no false detection because it does not stop the amusement machine immediately by turning on the radio wave detection error flag, but rather stop alerting the store clerk by lighting the lamp. The purpose is to avoid as much rudeness as possible. However, it is also possible to impose a stricter penalty, such as stopping the payout of prize balls or stopping the firing of balls by turning on the radio wave detection error flag.

  If it is determined in step 7 that the ON time of the counter J is not less than ONmin [interrupt], which is a value corresponding to the minimum ON time (determination that does not detect abnormality), or step 8 If NO (determination that no abnormality is detected) is determined so that the OFF time of the counter J is not less than OFFmin [interrupt], which is a value equivalent to the minimum OFF time, the counter J Is reset, 0 is set, and the subroutine is exited.

  As shown in FIG. 16, when one pachinko ball penetrates the ball sensor 9, the ball sensor is in the regular on period after reaching the point a where detection is started and after reaching the point b where detection is ended. 9, when an improper radio wave forcibly inserting the OFF state is irradiated, the detection output result of the ball sensor 9 is divided into one regular ON period, and the assumed minimum ON time The on-time may be shorter than the comparative reference value ONmin.

  In this case, an abnormality determination of YES is made in step 7 in FIG. 15, the radio wave detection error flag is turned on in step 9, and the store clerk can take an appropriate measure by notifying the front lamps 53 and 54 of the error. For this reason, it is possible to improve the monitoring accuracy for fraud without overlooking as much as possible the new radio wave such as pretending to be a single prize.

  At the same time, as shown in FIG. 16, the result of the detection output of the ball sensor 9 due to the irradiation of unauthorized radio waves is a comparison reference value OFFmin corresponding to the assumed minimum off time during one regular on period. Shorter off-time may be inserted.

  In this case, YES is determined as YES in step 8 of FIG. 15, the radio wave detection error flag is turned ON in step 9, and the store clerk can take an appropriate action by notifying the front lamps 53 and 54 of the error. For this reason, it is possible to further improve the accuracy of monitoring a new radio wave got, such as pretending to be a single prize.

  In the above, an example of application to the pachinko gaming machine 1 has been shown, but it can be similarly applied to other bullet ball gaming machines such as an arrangement ball gaming machine. In addition to ball and ball machines, pachinko balls can be used instead of medals to activate the winning line, and then applied to game machines called parrots that enjoy slot machine games. The present invention can be widely applied to a ball sensor fraud monitoring device that monitors fraud with respect to a penetrating ball sensor 9 that detects a ball.

  In the present invention, the on-time timing means T for measuring the on-time from the detection of the on-edge when the ball sensor 9 switches from off to on to the detection of the off-edge that switches from on to off, and the on-time counting means T for measuring the on-time counting means T It includes an on-time abnormality determining means X that determines an abnormality when the time is less than a comparison reference value corresponding to a preset minimum on-time, and the ball sensor 9 is switched from on to off. Off-time timing means F for timing off time from detection of switching off-edge to detection of on-edge switching from off to on, and off-time counting by off-time timing means F is preset and assumed minimum off Another invention characterized in that it includes off-time abnormality determination means Y that determines that an abnormality occurs when the comparison reference value is less than the time equivalent.

  Mainly regulations on customs sales, etc. and laws concerning the optimization of business, etc. Useful in industrial fields.

2; game board 6; large winning opening 81; first starting opening 82; second starting opening 41 to 43; general winning opening G; through gate 9; ball sensor 9C; winning ball sensor 9N at the first starting opening; Ordinary electric combination winning ball sensor 9S at the start opening; Special electric combination winning ball sensor 9G at the large winning opening; Gate passing ball sensors 9U, 9L, 9R at through gates; General winning opening winning ball sensor J; Counter T; On-time timing means F; Off-time timing means X; On-time abnormality determining means Y; Off-time abnormality determining means CN; Control device MC;

Claims (8)

The game board is provided with a gaming part provided with a penetrating ball sensor that switches between a detection state on and a non-detection state off with the penetration of a pachinko ball,
In a ball game machine equipped with a control device that inputs the output of the ball sensor and executes game control,
The controller is
An on-time measuring means for measuring an on-time from detection of an on-edge where the ball sensor is switched from off to on to detection of an off-edge which is switched from on to off;
An on-time abnormality determining unit that determines an abnormality when an on-time measured by the on-time measuring unit is less than a comparison reference value that is set in advance and is equivalent to the assumed minimum on-time. Gaming machine. The controller is
An off time measuring means for measuring an off time from detection of an off edge at which the ball sensor is switched from on to off to detection of an on edge at which the ball sensor is switched from off to on;
The off-time abnormality determining means for determining an abnormality when the off-time measured by the off-time measuring means is less than a comparison reference value that is set in advance and corresponds to the assumed minimum off-time. 1. A ball game machine according to 1. In the timer interrupt processing of the microprocessor provided in the control device, a counter is provided that resets upon detection of an edge at which the on / off of the ball sensor is switched, and counts up upon detection of an edge at which the on / off of the ball sensor does not switch,
3. The ball game machine according to claim 1, wherein the counter is used to measure the output of the ball sensor.   4. The bullet ball game machine according to claim 3, wherein the counter is stopped when the count value of the counter exceeds a predetermined upper limit and the count value is maintained until the next edge is detected.   The comparison reference value is individually set for each ball sensor based on an actual measurement value of each ball sensor measured in advance in an actual shooting test for the game board. The ball game machine described in the item.   The comparison reference value is set in common for each ball sensor with a minimum value of them as a representative value based on an actual measurement value of each ball sensor measured in advance in an actual shooting test for the game board. The bullet ball game machine according to any one of claims 1 to 4. In the ball sensor fraud monitoring device for monitoring fraud with respect to the penetrating ball sensor in which the detection state is turned on and the detection state is turned off with the penetration of the pachinko ball,
An on-time measuring means for measuring an on-time from detection of an on-edge where the ball sensor is switched from off to on to detection of an off-edge which is switched from on to off;
A ball sensor comprising: an on-time abnormality determining unit that determines an abnormality when an on-time measured by the on-time measuring unit is less than a comparison reference value that is set in advance and corresponds to a minimum on-time that is assumed. Fraud monitoring device. In the ball sensor fraud monitoring device for monitoring fraud with respect to the penetrating ball sensor in which the detection state is turned on and the detection state is turned off with the penetration of the pachinko ball,
An on-time measuring means for measuring an on-time from detection of an on-edge where the ball sensor is switched from off to on to detection of an off-edge which is switched from on to off;
An off time measuring means for measuring an off time from detection of an off edge at which the ball sensor is switched from on to off to detection of an on edge at which the ball sensor is switched from off to on;
On-time abnormality determination means for determining an abnormality when the on-time measured by the on-time timing means is less than a comparison reference value corresponding to a preset and assumed minimum on-time,
A ball sensor comprising: an off-time abnormality determining unit that determines that an abnormality occurs when an off-time measured by the off-time measuring unit is less than a comparison reference value that is set in advance and corresponds to a minimum off-time that is assumed. Fraud monitoring device.

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