JPH11295165A - Seal failure detecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely detect abnormality of seal. SOLUTION: A sensing part 10 has an electrode and a diode 16 for connecting its terminals, and a detecting part 2 has the first voltage generating means 21 in a cathode side of the diode 16, the second voltage generating means 23 in an anode side of the diode 16, a capacitor 24 connected to an output terminal of the first voltage generating means 21, a relay element 25 responsive to terminal voltage of the capacitor 24, and a command part 26. A short-circuit, detecting mode for generating high voltage H1 in the means 21 and for generating low voltage L2 in the means 23, and a disconnection detecting mode for generating low voltage L1 in the means 21 and for generating high voltage H2 in the means 23 are commanded to detect short-circuit and disconnection of a sensing part circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal breakage detecting device for automatically detecting when an abnormal external force such as a cutting force or a peeling force is applied to a sealing seal for sealing an article.

[0002]

2. Description of the Related Art A sealing seal is affixed to an appropriate place on an article in order to prevent or sense that an article to be held in a predetermined state is externally changed. In other words, if any change is to be made to the holding state of the article, it should be placed in a place where the work of the change becomes impossible without going through the process of peeling or cutting the sealing seal. It is intended to confirm whether or not the state of the article has been changed by affixing, visually checking the state of the sealing seal, and confirming the presence or absence of a change such as peeling. Examples of such articles to which the state of the article is managed by attaching such a sealing seal include a gaming machine such as a pachinko machine and a meter for trading electricity and gas.

For example, in recent gaming machines such as pachinko machines, computer control for performing a predetermined operation based on a program is employed, but by changing the program, it is possible to greatly change the state of payouts. It becomes possible. For this reason, in order to prevent a program from being changed from the outside or to detect the occurrence of an abnormality, for example, the storage section of the program is covered with a cover or the like, and the sealing seal is attached to the cover. Then, the program cannot be changed without removing the cover, that is, peeling or cutting the sealing seal.

That is, as shown in FIG. 9, for example, a control board 82 on which a microcomputer or the like is mounted is mounted on the back side of the pachinko machine 8, and a memory 83 or the like in which a program is written is mounted on the control board 82. Further, the control board 82 is accommodated in the box 85.
A single or a plurality of sealing seals 91 are attached to the control board 82 and the box 85. for that reason,
In order to change the program of the control board 82 or replace the memory 83, it is necessary to peel off or cut off the sealing seal 91. As a result, by visually checking whether or not the state of the sealing seal 91 has changed, the box 85 is opened and the control board 82 is opened.
Can be determined if any changes have been made to the.

[0005]

However, the determination of the presence or absence of a change in the state of the sealing seal visually has the following problems. First, when the sealing seal 91 is cleverly cut with a very thin sharp blade or the like, it is difficult to visually recognize the sealing seal 91 with human eyes, and the state change of the seal is easily overlooked. is there. Further, since the abnormality detection accuracy varies depending on the skill of the observer and the length of the inspection time, there is a problem in its reliability. Further, when the seal is restored after the state of the seal is once changed and a so-called restoration process is performed, it is more difficult for a human to detect the abnormality.

Second, even if it is detected that an abnormal external force is applied to the sealing seal 91, it cannot be detected in real time by the above-described method. There is a problem that it is not possible to know the time at which the operation was performed. Therefore, it is difficult to plan preventive measures because it is difficult to take countermeasures and it is impossible to know when and where such destruction has occurred. Therefore, in the case of a gaming machine, for example, it cannot be determined whether the device has been changed during the transportation or after the device has been installed in the store. Therefore, it is difficult to take preventive measures in the future.

The present invention has been made in view of the above-mentioned conventional problems, and is capable of reliably detecting an abnormal external force applied to a sealing seal for sealing an article, and has an excellent sealing for facilitating a preventive measure. It is intended to provide a destruction detection device.

[0008]

According to a first aspect of the present invention, there is provided a sealing failure detecting device for detecting that an abnormal external force such as cutting or peeling is applied to a sealing seal for sealing the device. A sensing portion extending to the seal and changing a circuit in response to an abnormal external force, a detecting portion operating according to a predetermined sequence to detect a change in the circuit of the sensing portion, and starting a detection operation for the detecting portion And a power supply unit for receiving and recording the detection result and for supplying power to each unit. The sensitive unit is disposed on each sealing seal via a small gap and is electrically connected. A pair of electrodes formed in parallel in parallel, connecting means for sequentially connecting the electrodes of the respective sealing seals in series, and one end between the ends of the electrodes of the sealing seal located at the end of the electrical connection. A terminating member connected only through a conductive element And the detecting unit is connected to ends of first and second electrodes arranged on a sealing seal located at a starting end of the electrical series connection, and is provided with a conduction direction of the terminal member. Connected to a first electrode located downstream,
Based on the control command, a binary voltage H that is high or low with respect to the reference potential
1, a first voltage generating means for generating L1, and a high voltage H2 higher than the L1 based on a control command, which is connected to a second electrode located upstream in the conduction direction of the terminal member.
And the high-low binary voltage H of the low voltage L2 lower than the above H1
2, a second voltage generating means for generating L2, one end of which is connected to a reference potential, the other end of which is connected to the output terminal of the first voltage generating means, and the second voltage generating means is connected to the output terminal of the second voltage generating means. A capacitive element connected via a path of one electrode, a terminating member and a second electrode; a relay element for transmitting binary signals Sn and Sa to a control unit in response to a terminal voltage of the capacitive element; A command unit for issuing a control command to the voltage generation means, and further comprising: when the detection unit receives a start command from the control unit, the command unit transmits a high voltage to the first voltage generation means. H1 is generated and the low voltage L is applied to the second voltage generating means.
2 and a disconnection detection mode in which the first voltage generation means generates a low voltage L1 and the second voltage generation means generates a high voltage H2. When the circuit of the sensitive part is changed by short-circuiting the one-way conductive element of the terminating member in the state described above, the voltage M1 generated at the capacitive element is normally generated at the other end of the capacitive element in the disconnection detection mode. The signal Sa generated by the relay element when the voltage is lower than the voltage M2 and the terminal voltage of the capacitive element is the L1 and M1 and the relay when the terminal voltage of the capacitive element is the H1 and M2. The circuit is configured so that the signal Sn generated by the element becomes a different binary signal, and the power supply unit includes a battery capable of supplying desired power of each unit for a certain period of time. There may have to seal breaking detection device according to claim.

In the first invention, a first point to be particularly noticed is that a pair of electrodes arranged in parallel on each sealing seal of the sensitive portion are connected in series via a connecting means, and the connection is established. The end of the electrode of the sealing seal located at the end is connected via an element which can conduct in only one direction, and is configured as a single circuit in series (see reference numeral 10 in FIG. 3). Then, the detection unit includes first and second electrodes (reference numerals 111 and 11 in FIG. 3) arranged on the sealing seal located at the start end of the connection.
2). That is, the input / output terminal of the series circuit of electrodes is connected to the detection unit, and a one-way conducting element such as a diode is connected to the folded portion in the middle of the circuit.

[0010] The above-mentioned electrode is usually formed at a position where an external force must be applied when cutting or peeling the sealing seal. As a result, when an abnormal external force is applied to the sensing section (series circuit of electrodes), the seal often breaks and the circuit is opened (disconnected) in many cases. In this case, if the seal is restored and restored thereafter, the trace may not remain, but the circuit is disconnected at least temporarily when an external force is applied (hereinafter, referred to as a first variation of the circuit). . Further, in order to break the sealing seal, for example, when the sealing seal is cut using a conductive blade such as metal, the electrodes formed on the sealing seal are opposed to each other with a narrow gap. Both sides of a one-way element (for example, the diode 16 in FIG. 3) of the sensitive part circuit are short-circuited, and the circuit changes from a circuit that conducts in one direction to a circuit that conducts in both directions (short circuit) (hereinafter, referred to as a second variation of the circuit). ).

On the other hand, when the sealing seal is to be cut using a non-conductive blade such as a ceramic, for example, the insulating material breaks the series circuit of the electrodes of the sensitive portion during the cutting, and The object disconnects the circuit (first variation of the circuit). As described above, when an abnormal external force is applied to the sensitive portion formed on the sealing seal, the sensitive portion according to the present invention is configured to cause a change in the circuit configuration.

A second aspect of the present invention which should be particularly noted.
The point is an aspect of the configuration of the detection unit described below (see FIG. 1 of the first embodiment. Note that the voltage generation units 21 and 21 in FIG.
2 is illustrated using mechanical switch symbols for the sake of simplicity, but it is actually preferable to use electronic switch elements from the viewpoint of speeding up and miniaturization).

As described above, the detecting section is connected to the ends of the first and second electrodes of the sealing seal located at the starting end of the series connection in the sensitive section circuit. That is, it is connected to the input / output terminal of the series circuit of the electrodes of the sensitive part. Then, for the one downstream of the one-way conducting element in the series circuit among the electrodes (the first electrode 111 shown in FIG. 3), a high-low binary voltage H1, L1 is generated based on the control command. One of the voltage generating means is provided on the downstream side of the one-way conductive element in the series circuit among the electrodes (the second electrode 112 shown in FIG. 3) based on the control command with the high and low binary voltages H2 and H2. Second voltage generating means for generating L2 is connected, and a capacitive element is connected between an output terminal of the first voltage generating means and a reference potential. Therefore, as shown in FIG. 1 of the first embodiment, the capacitive element is also connected to the output terminal of the second voltage generating means via the path of the first electrode, the terminating member, and the second electrode. Become.

Further, the detecting section includes a relay element for transmitting the binary signal Sn or Sa to the control section in response to the terminal voltage of the capacitive element, and a command for issuing a control command to the first and second voltage generating means. Section is provided.

When the detecting section receives the start command from the control section, the command section generates a high voltage H1 in the first voltage generating means and generates a low voltage L2 in the second voltage generating means. Two control modes are commanded: a detection mode, and a disconnection detection mode in which the first voltage generating means generates a low voltage L1 and the second voltage generating means generates a high voltage H2. When the voltage generated in the capacitive element is M1 when the one-way conductive element of the terminal member is short-circuited in the state of the short-circuit detection mode to change the circuit of the sensitive part, the M1 is equal to the above-described voltage. In the disconnection detection mode, the voltage is generally lower than the voltage M2 generated at the other end of the capacitive element.

Further, when the terminal voltage of the capacitive element is L
1 and the signal Sa emitted by the relay element when M1
And appropriately setting the impedance value of the element, for example, such that the signal Sn generated by the relay element becomes a different binary signal when the terminal voltages of the capacitance element are H1 and M2. Make up.

That is, in the short-circuit detection mode, when the voltage H1 normally occurs at the terminal of the capacitor element (when there is no circuit change), and in the short-circuit detection mode, both ends of the one-way conductive element of the sensitive part are short-circuited. Is different from the case of the voltage M1 generated at the terminal of the capacitive element when the voltage of the capacitor changes, the binary signal generated by the relay element is different from the binary signal Sn (H1
) And Sa (corresponding to M1). In addition, in the disconnection detection mode, in the case of the voltage M2 generated at the terminal of the capacitive element in the normal state (when there is no circuit change)
In the disconnection detection mode, the binary signal generated by the relay element is different from the binary signal Sn (M2) in the case of the voltage L1 generated at the terminal of the capacitive element when the circuit of the sensing unit is disconnected and the circuit is changed in the disconnection detection mode. ) And Sa (corresponding to L1).

That is, when there is no change in the circuit of the sensitive part, the binary signal output is Sn in any case, and when there is a change in the circuit of the sensitive part (short circuit or disconnection occurs). Is to make the output binary signal Sa in any case. In addition, even when the sensing unit has a short circuit or disconnection circuit change, the detection unit outputs the signal Sa at the time of abnormality, so that various modes of abnormal external force applied to the sensing unit can be detected. is there. Therefore, for example, simply breaking the seal, or shorting the circuit to cut the circuit with something like a conductive blade, or cutting the circuit with something like an insulating blade Even if the circuit is disconnected, the abnormality can be detected immediately, and it can cope with all the abnormal modes of the sealing seal.

What occupies a large part of the power consumption in the detection unit is due to the current flowing through the capacitor, and the current flows only once when the control mode is switched to the short-circuit detection mode or the disconnection detection mode. Therefore, power consumption is extremely small.

It is preferable that the power supply unit of the apparatus incorporates a battery so that each unit can supply desired power for a certain period. The battery may be a primary battery or a secondary battery. As a result, it is possible to reliably grasp the abnormality of the apparatus which occurs when the power cannot be taken from the outside such as during transportation or storage in a warehouse. And, due to the low power consumption characteristics of the present device, the life of the battery is greatly extended.

As described above, according to the first aspect of the present invention,
It is possible to provide an excellent sealing failure detection device that can detect various abnormal modes of the sealing seal, consumes low power, and can detect the abnormality in real time.
Since the control unit includes the recording unit, the detection result of the abnormality can be recorded in the control unit.

On the other hand, a second invention of the present application is a sealing failure detecting device for detecting that an abnormal external force is applied to a sealing seal for sealing the device, as described in claim 2, A sensing portion extending to the sealing seal and changing a circuit in response to an abnormal external force, a detecting portion operating according to a predetermined sequence to detect a change in the circuit of the sensing portion, and a detecting operation for the detecting portion And a power supply unit for receiving and recording the detection result, and for supplying power to each unit.The above-mentioned responsive unit is disposed on the sealing seal via a small gap. And three or more electrodes formed electrically in parallel, connecting means for sequentially connecting the electrodes of the sealing seals in series, and each electrode in the sealing seal located at the end of the electrical connection. One end of at least one of the other electrodes Has a termination member linked via an available conduction element only direction, the detection unit, the voltage H1, L binary high and low with respect to the reference potential based on a control command
1 and a second voltage for generating high-low binary voltages H2 and L2 of a high voltage H2 higher than L1 and a low voltage L2 lower than H1 based on a control command. Generating means, a capacitive element having one end connected to the reference potential and the other end connected to the output terminal of the first voltage generating means, and binary signals Sn, S responsive to the terminal voltage of the capacitive element.
a relay element for transmitting a to the control unit, and two ends of a pair of electrodes connected to each other via the terminal member, which are electrodes of a sealing seal located at the start end of the electrical connection, and the capacitor Connecting the other end of the element and the output terminal of the second voltage generating means by sequentially switching the electrode pair;
A pair 2 switching means, wherein a first electrode located downstream of the terminating member in the conducting direction among the paired electrodes is connected to the other end of the capacitive element, and a terminating member is disposed within the paired electrodes. Connecting the second electrode located on the upstream side in the conduction direction to the output terminal of the second voltage generating means, and issuing a control command to the first and second voltage generating means and a control command to the switching means. And a command unit, wherein the detection unit, when receiving a start command from the control unit,
The command section operates the switching means to sequentially switch the pair of electrodes connected to the other end of the capacitive element and the output terminal of the second voltage generating means, and at the time of each switching, to the first voltage generating means. A short-circuit detection mode in which the high voltage H1 is generated and the second voltage generation means generates the low voltage L2, and a disconnection detection mode in which the first voltage generation means generates the low voltage L1 and the second voltage generation means generates the high voltage H2. The two control modes are respectively commanded, and in the state of the short-circuit detection mode, when the one-way conductive element of the terminating member is short-circuited and the circuit of the sensitive part is changed, the voltage M1 generated in the capacitive element is: In the disconnection detection mode, the voltage is smaller than the voltage M2 normally generated at the other end of the capacitor, and the terminal voltage of the capacitor is M1 and L
The circuit is configured so that the signal Sa generated by the relay element when the signal is one and the signal Sn generated by the relay element when the terminal voltage of the capacitor is M2 and H1 are different binary signals. The power supply unit has a built-in battery capable of supplying desired power to each unit for a certain period of time or more.

One of the differences between the device according to the second invention and the device according to the second invention is that in the second invention, three or more electrodes are arranged in parallel on each sealing seal of the sensitive part, and An element that is connected in series via a connecting member and that is capable of conducting only in one direction to at least one of the ends of the electrodes of the sealing seal located at the end of the connection at least at the other end of the sealing seal. (Reference numeral 1 in FIG. 8 of the second embodiment showing an example in which four electrodes are arranged in parallel).
00).

One of the other differences is that two electrodes of a pair of electrodes connected to each other through a one-way conducting element are electrodes of a sealing seal located at a starting end via a switching means. That is, the electrode pair is switched and connected between the unit and the other terminal of the capacitive element and the output terminal of the second voltage generating means (see reference numeral 28 in FIG. 8; FIG. The switching means 28 is for simplicity of explanation,
Although it is indicated by a mechanical switch symbol, it is actually preferable to use an electronic switch element, a selection circuit, or the like in terms of speeding up and miniaturization).

Then, the switching means is operated, and the other end of the capacitive element and the two output terminals of the second voltage generating means are connected.
The pair of electrodes connected to the ends are sequentially switched, and the same operation of detecting an abnormality in the sensing unit as in the first invention is performed. Then, a short circuit and a disconnection of the circuit generated in the circuit of the sensitive part are detected.

In the second invention, three or more electrodes are arranged in parallel, and an abnormality (short circuit or disconnection) of a circuit occurring between some of the plurality of electrode pairs is also detected. can do. Therefore, it becomes more difficult to peel or break the sealing seal without any circuit change of the sensitive part being detected. Others are the same as the first invention.

According to a third aspect of the present invention, in the first and second aspects, the control unit receives a normal signal Sn from the relay element in the short-circuit detection mode or the disconnection detection mode. , A next start command is issued to the detection unit at a relatively longer interval Tn, while a signal Sa when the relay element is abnormal (circuit change) is issued.
Is received, an additional start command is issued one or more times at a significantly shorter interval Ta to the detection unit, and the plurality of detection results are comprehensively determined, and the circuit of the sensing unit is determined. It is preferable to determine whether the state is normal or abnormal.

Since the time during which an abnormal force is applied to the sealing seal by human action and its interval are extremely long compared to the operation speed of the electronic circuit, it is wasteful to constantly monitor for abnormalities and power consumption. Will be accompanied. Therefore, by performing the detection operation at the interval Tn that is relatively longer than the one-cycle detection operation, power consumption can be suppressed and the service life of the battery can be extended.

When the abnormal signal Sa is issued,
In practice, the abnormal signal Sa may be erroneously generated due to noise or the like even though there is no circuit change in the sensitive part. Therefore, as described in claim 3, the abnormal signal Sa
Is issued, a plurality of searches are performed at short intervals, and a plurality of detection results are comprehensively determined, whereby erroneous determination can be avoided.

According to a fourth aspect of the present invention, the control unit is provided with a clock device that indicates the real time or a timer that counts the elapsed time from the reference time. Is issued, it is preferable to record the time or the count value of the timer when it is determined that the circuit of the sensitive unit is abnormal.

When a timer is used, the timer is set to a reference time at which it is easy to grasp the time of occurrence of a subsequent abnormality such as shipment from a factory. This makes it easy to determine the occurrence of an abnormality, that is, when the modification operation to the apparatus was performed, for example, whether the operation was performed during transportation or after installation in the store.

According to a fifth aspect of the present invention, a protruding portion is formed on the opposing portion of the sensitive electrode in such a manner that the gap between the opposing electrodes becomes narrow even if cutting lines in many directions are cut. (Refer to the protrusion 115 in FIG. 3 of the first embodiment). By forming the protrusions on the electrodes in this way, when an abnormal external force is applied to the sensitive portion, a circuit change can easily occur.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 In this embodiment, as shown in FIG. 4, it is detected that an abnormal external force is applied to a sealing seal 81 for sealing a box 85 covering a control board 82 of a gaming machine. It is a sealing failure detection device 1 to be performed. As shown in FIGS. 1 to 3, the sealing failure detection device 1
A sensing unit 10 that extends in the sealing seal 81 and changes the circuit in response to an abnormal external force, a detecting unit 2 that operates according to a predetermined sequence and detects a change in the circuit of the sensing unit 10, A control unit 30 for instructing the start of a detection operation and receiving and recording a detection result, and a power supply unit 40 for supplying power to each of the units 10 to 30.

As shown in FIG. 3, the sensitive portion 10 is provided with a pair of electrodes 11 disposed in each sealing seal 81 with a narrow gap therebetween and formed electrically in parallel with each other.
Between the electrodes 11 of the sealing seal 11 located at the end of the electrical connection and the conductor 16 as a connecting means for sequentially connecting the electrodes 11 in series with each other. And a terminating member 15 to be connected.

Then, the detecting unit 2 is provided with a first and a second seal disposed on a sealing seal 811 located at the starting end of the electric series connection.
The second electrodes 111 and 112 are connected to ends. FIG.
As shown in (2), the detection unit 2 is connected to the first electrode 111 (FIG. 3) located on the downstream side in the conduction direction of the terminal member 15 (the cathode side of the diode 16), and based on the control command, the reference potential (earth). Voltage generating means 21 for generating binary voltages H1 and L1 of high and low with respect to
Is connected to the second electrode 112 (FIG. 3) located on the upstream side (the anode side of the diode 16) in the conduction direction of the first and second electrodes, and at least a high voltage H2 higher than the L1 and a low voltage lower than the H1 based on a control command. High-low binary voltage H2 of L2
Second voltage generating means 2 for generating L2 (L2 <H2)
3, one end is connected to a reference potential (earth), the other end is connected to the output terminal of the first voltage generation means 21, and the output terminal of the second voltage generation means 23 is connected to the first electrode 111, the diode 16 and the second A capacitor 24 connected via the path of the electrode 112, a relay element 25 responsive to the terminal voltage of the capacitor 24 and transmitting the binary signals Sn and Sa to the control unit 30, and first and second voltage generating means 21 and 23 And a command unit 26 for issuing a control command.

When a start command is received from the control unit 30, the command unit 26 of the detection unit 2 generates a high voltage H1 in the first voltage generation unit 21 and a low voltage L in the second voltage generation unit 23.
Short-circuit detection mode for generating the second voltage,
1 to generate a low voltage L1 and instruct the second voltage generation means 23 to generate a high voltage H2.

In the short-circuit detection mode, when the diode 16 is short-circuited to change the circuit of the sensing unit 10, the voltage M1 generated at the capacitor 24 is connected to the other end of the normal capacitor 24 in the disconnection detection mode. It is smaller than the generated voltage M2. Also, the capacitor 24
Is different from the signal Sa generated by the relay element 25 when the terminal voltages of the relay element 25 are the voltages L1 and M1 and the signal Sn generated by the relay element 25 when the terminal voltages of the capacitor 24 are the voltages H1 and M2. The circuit is configured so that

As shown in FIG. 5, the power supply unit 40 has a built-in battery capable of supplying desired power for a certain period or more. Further, in the case of the short-circuit detection mode or the disconnection detection mode, the control unit 30 outputs the binary signal received from the relay element 25 to the capacitor 2.
4 is the same as the signal Sn issued when the terminal voltage of the terminal 4 is H1 or M2,
As shown in FIG. 6, a relatively long interval Tn
(E.g., 100 ms), the next start command is issued.

On the other hand, when the binary signal received from the relay element 25 is the signal Sa generated when the voltage of the capacitor 24 is L1 or M1, the detection unit 2 is instructed by the detection unit 2 shown in FIG. As shown in b), an additional start-up command is issued at a significantly shorter interval Ta (for example, 1 ms or less), and when the two detection results are both the detection signal Sa, the sensing unit 10 is activated. The circuit state is determined to be abnormal.

Further, as shown in FIG. 3, the control unit 30
It has a clock device 31 that indicates real time, and in the case of the short-circuit detection mode or the disconnection detection mode, the relay device 2
5 and the voltage of the capacitor 24 is L
If the signal Sa is a signal Sa when the signal is 1 or M1 and is invariable by a plurality of detections at a short interval Ta and it is determined that the circuit of the sensitive unit 10 is abnormal, the time is recorded in the memory 32. Then, the data is appropriately transmitted to the outside via the communication interface circuit 33. In the figure, reference numeral 36 denotes an interface circuit with the detection unit 20, and reference numeral 35 denotes a CPU that controls the units 31 to 33 and 36.
It is.

As shown in FIG. 3, the opposing portions of the sensitive electrodes 10 facing the electrodes 11, 11, 111, and 112 have many gaps between the opposing electrodes 11, 11, 111, and 112. A bent protrusion 115 is formed so as to be narrow even in a cutting line in the direction of.

The following is a supplementary explanation for each.
This example is a sealing failure detection device 1 that detects that an abnormal external force is applied to the sealing seal 81. As shown in FIG. 4, the sealing seal 81 covers a control board 82 such as a pachinko machine. A plurality of boxes are attached to the main part of the box 85. The control board 82 in the box 85 is provided with a program memory 83 for determining the operation mode of the machine. Therefore, when an attempt is made to modify the memory 83 or the control board 82, an abnormal external force such as breaking the sealing seal 81 is applied.

As shown in FIG. 3, the sensitive section 10 has a circuit formed by conducting each sealing seal 81. That is, a pair of electrodes 11 formed electrically in parallel with each sealing seal 81 are connected in series by the conductor 13 as a connecting means, and further, the electrodes 11 of the sealing seal 11 located at the ends thereof
Are connected by a diode 16 to form one circuit.

Each of the electrodes 11 is formed with a protruding portion 115 which is bent in a U-shape, and the opposing electrodes 11 are separated by a small gap formed between the protruding portions 115. . Therefore, when the sealing seal 81 is cut by a conductive blade or the like, the opposing electrodes 11 are short-circuited, which is similar to the short-circuit of the diode 16 (the second variation of the above-described circuit). Also, when the sealing seal 81 is broken without using a blade or the like or cut with an insulating blade or the like, the circuit of the sensitive part 10 is opened (disconnected) (the first variation of the circuit described above). In any case, the circuit of the sensitive unit 10 changes.

Then, as shown in FIG. 3, the detecting unit 2
A first voltage generating means 21 connected to both ends of the series circuit of the sensing unit 10 and connected to a cathode-side terminal of the diode 16 of the circuit of the sensing unit 10 as shown in FIG.
A second voltage generating means connected to a terminal on the anode side of the diode of the sensitive section; As shown in FIG. 2, the first voltage generation circuit 21 includes a series circuit of transistors T11 and T12 that perform a switching operation. When measurement is not performed (idle), T11 is turned off (non-conductive).
Reference numeral 12 is in an ON (conducting) state (command signals given to gates for ON / OFF operations of T11 and T12 are omitted including the following circuits). T13 in the figure is a transistor that performs a switching operation in the same manner. The transistor T13 is turned on / off in the same operation mode as the transistor T11, and has a function of accelerating the discharge of the capacitor 24 by making the resistance R2 smaller than R1 (R2≪R1). .

On the other hand, as shown in FIG. 2, the second voltage generating circuit 23 includes a switching transistor T21,
Equipped with a series circuit of T22, T2 when not measured (idle)
1 OFF (non-conductive) state, T22 ON (conductive) state. A transistor T23 in the figure whose function is described later is a transistor that performs a switching operation in the same manner, and turns on and off in the same operation mode as the transistor T21. Therefore, at the time of non-measurement (idle), the terminal voltage of the capacitor 24 is substantially at the ground potential and is in a non-charged state.

When the command section 26 issues a short-circuit detection mode command to the detection section 2, the second voltage generation circuit 23
In the non-measurement (idle) state,
The operation of the transistors T11 and T12 of the pressure generating circuit 21 is inverted to make the T12 off (non-conducting) state and the T11 on (conducting) state (T13 is interlocked with T12). That is, the first voltage generating means 21 generates a high voltage (= H1). As a result, the capacitor 24 is charged and the terminal voltage rises. At this time, since the output voltage of the second voltage generating circuit 23 is in a low state (= L2), the diode 16 is in a non-conductive state, and the capacitor 24 is not affected by the second voltage generating circuit 23.

The relay element 25 transmits the first signal Sn (= normal signal) of the binary signals to the control unit 30. If the circuit is changed to a state in which both ends of the diode 16 of the sensing unit 10 are short-circuited (second change mode of the circuit) when the state is switched to such a short-circuit detection mode, both ends of the diode 16 are changed. Is short-circuited, the capacitor 24 discharges, and the second voltage generating circuit 23
, The terminal voltage of the capacitor 24 decreases. Then, the value of the output of the relay element 25 is inverted, and the second signal Sa (signal at the time of abnormality) of the binary signal is transmitted to the control unit 30.

On the other hand, when the control mode of the detection unit 2 is switched from the non-measurement (idle) state to the disconnection detection mode by a command from the command unit 26, the first voltage generating circuit 21 turns off both the transistors T11 and T12 ( (T13 is interlocked with T12), and the operation of the second voltage generation circuit 23 is inverted, so that T22 is turned off (non-conducting) and T21 is turned on (conducting). Interlocking). That is, a high voltage (= H2) is generated by the second voltage generation means 23, and the potential becomes higher than that of the first voltage generation circuit 21. As a result, the diode 16 becomes conductive, the capacitor 24 is charged, and its terminal voltage rises more than in the non-measurement (idle) state (≒ 0) (voltage = M).
2).

At this time, the relay element 25 sends the first signal Sn (= normal signal) of the binary signal to the control unit 30.
(M2> M1). When the state is switched to the disconnection detection mode, if the circuit of the sensing unit 10 is disconnected and disconnected from the first voltage generation circuit 21 and the second voltage generation circuit 23 (the first change of the circuit). Aspect)
Suppose that it had changed. Then, the capacitor 24 becomes the second
The voltage of the voltage generating circuit 23 is no longer affected, and the terminal voltage of the capacitor 24 becomes lower than the above-mentioned M2.

Then, the value of the output of the relay element 25 is inverted, and the second signal Sa (signal at the time of abnormality) of the binary signal is transmitted to the control unit 30. As described above, by instructing the short-circuit detection mode and the disconnection detection mode and checking whether the output signal of the relay element 25 is Sn (normal) or Sa (abnormal),
It is possible to detect whether or not an abnormal state of the short circuit or disconnection has occurred in the circuit of the sensitive unit 10. In the non-measurement (idle) state, the capacitor 24 is not charged or discharged at all, so that the power consumption of the power supply 40 (battery 41) is extremely small. Further, in the case of the short-circuit detection mode and the disconnection detection mode, since the capacitor 24 is only charged once, the power consumption of the power supply 40 (battery 41) at the time of detection is very small.

When the binary signal received from the relay element 25 is the normal signal Sn in the short-circuit detection mode or the disconnection detection mode, as shown in FIG. The next start command is issued at a longer interval Tn (for example, 100 ms). It usually takes 100 ms to peel or cut the sealing seal 81.
This is because a much longer time is required, while the time for detecting an abnormality in the detection mode is an extremely short time of usually 1 ms or less. Further, if the detection operation is frequently repeated, malfunctions due to noise increase and only power is consumed, but the merit decreases. As described above, in the device of this example, the power consumption is very small, and the service life of the battery 41 is very long.

On the other hand, when the binary signal received from the relay element 25 is a signal Sa indicating an abnormality, the control unit 30 sends a signal to the detection unit 2 as shown in FIG. An additional start command is issued at a significantly shorter interval Ta (for example, 1 ms or less), and when the two detection results are both the detection signal Sa, the circuit state of the sensing unit 10 is determined to be abnormal. . The malfunction signal due to noise or the like can be considered for the abnormal signal Sa only once, because the detection reliability decreases.

In the detecting section 2, the transistor T13 of the first voltage generating circuit 21 has a function of accelerating the discharging of the capacitor 24 by making the resistance R2 smaller than R1 (R2≪R1,). The transistor T23 of the second voltage generating circuit 22 adjusts the voltage level on the anode side of the diode 16 when the transistor T23 is turned on by setting the value of the resistor R4 to an appropriate value.

Further, as shown in FIG. 3, the control unit 30
It has a clock device 31 that indicates real time, and in the case of the short-circuit detection mode or the disconnection detection mode, the relay device 2
5 is a signal Sa at the time of abnormality,
Further, as described above, the abnormality signal Sa is not changed even by the plurality of detections at the short interval Ta, and when it is determined that the circuit of the sensitive unit 10 is abnormal, the date and time are received from the clock device 31 and the memory 32 To record. And
The control unit 30 exchanges data with the outside via the communication interface circuit 33 in a half-duplex communication mode. As shown in FIG. 7, the communication interface circuit 33 has an external signal receiving element 331 and an external signal transmitting element 332, and the transmitting element 332 responds to an external transmission request by the memory 32. The presence / absence of abnormality detection and the time are transmitted.

As shown in FIG. 5, the power supply section 40 has external input terminals C1 and C2, is operable by external power supply, and has a battery 41 inside.
And the device 1 can be operated for a long time even when there is no external power supply. Then, the control unit 30 controls the detection element 4
3, the presence or absence of an external power supply is detected, and the power supply to be used is switched. Therefore, the present apparatus 1 can detect an abnormality even when an abnormality occurs in the sealing seal 81 in a state where there is no external power supply, such as during transportation, and can record the time of occurrence.

As described above, according to the present embodiment, a short circuit and a disconnection of the circuit of the sensitive part 10 can be detected with low power consumption and with high reliability with extremely few malfunctions. Sealing failure detection device 1 that can reliably detect abnormal external force including storage time
Can be obtained.

Embodiment 2 As shown in FIG. 8, this embodiment is another embodiment in which the configurations of the sensing unit and the detecting unit in Embodiment 1 are changed. As shown in FIG. 8, the sensitive portion 100 of the present example includes four electrodes 11 arranged in a sealing seal 81 with a small gap therebetween and formed electrically in parallel with each other.
Of the four electrodes 11 at least at one end of the other electrodes 11 in the sealing seal 81 located at the end of the electrical connection. And a terminating member 15 connected via a diode 16.

The detecting section 20 of the present embodiment includes first voltage generating means 21 for generating binary voltages H1 and L1 higher and lower than the reference potential based on the control command, and the L1 based on the control command. A second voltage generating means 23 for generating high and low binary voltages H2 and L2 of a higher voltage H2 higher than H1 and a low voltage L2 lower than H1, and one end connected to the reference potential and the other end connected to the first voltage A capacitive element connected to the output terminal of the generating means; and a binary signal S in response to a terminal voltage of the capacitive element.
a relay element 25 for transmitting n and Sa to the control unit, and an electrode 113 of a sealing seal 811 located at a starting end of the electrical connection.
To 116 and two ends of a pair of electrodes 113 to 116 connected to each other via the terminating member 15 and the capacitor 2
2 is a two-to-two switching means 28 for sequentially switching and connecting a pair of electrodes 113 to 116 between the other end of the second electrode 4 and the two output terminals of the second voltage generating means 23. To 116, the first electrode located on the cathode side of the diode 16 is connected to the other end of the capacitive element 24, and the second electrode located on the upstream side in the conduction direction of the terminating member among the paired electrodes 113 to 116. Of the second voltage generating means 2
3 and a command unit 270 for issuing a control command to the first and second voltage generating means 21 and 23 and a control command to the switching means 28.

When the detection unit 20 receives the start command from the control unit 30, the command unit 270 activates the switching unit 28 to activate the switching unit 28 and the output terminal of the second voltage generation unit 220. The pair of electrodes 11 connected to
3 to 116 are sequentially switched to instruct the short-circuit detection mode and the disconnection detection mode.
The presence or absence of a change (short circuit or disconnection) in the circuit of 0 is detected. Although the switching means 28 is shown by a mechanical switch symbol in the figure, it is constituted by an electronic switch element.

In this example, the four electrodes 113 to 11
6 are arranged in parallel, and it is also possible to detect a circuit abnormality (short circuit or disconnection) occurring between some of the plurality of electrode pairs. Therefore, it becomes even more difficult to peel or break the sealing seal 81 without detecting any circuit change of the sensitive part 100. Others are the same as the first embodiment.

[0062]

As described above, according to the present invention, it is possible to detect a short circuit and a disconnection of the circuit of the sensitive part with low power consumption and with high reliability with extremely few malfunctions. It is possible to provide a sealing failure detection device that can reliably detect the abnormal external force that has been applied.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram mainly showing a detection unit of a sealing breakage detection device according to a first embodiment.

FIG. 2 is a diagram illustrating an internal circuit of first and second voltage generating means in FIG. 1;

FIG. 3 is a system configuration diagram mainly showing a sensing unit and a control unit of the sealing breakage detection device according to the first embodiment.

FIG. 4 is a diagram illustrating an example of an arrangement of a sealing seal and a sealing breakage detection device according to the first embodiment.

FIG. 5 is a circuit diagram of a power supply unit according to the first embodiment.

6A and 6B are diagrams showing the timing of a detection command according to the first embodiment ((a) is normal, (b) is abnormal).

FIG. 7 is a circuit diagram of a communication control unit of the control unit according to the first embodiment.

FIG. 8 is a system configuration diagram of a sealing breakage detection device according to a second embodiment.

FIG. 9 is a rear view layout diagram of a conventional pachinko machine.

[Explanation of symbols]

 10, 100 sensitive part, 11, 111 to 116, electrode, 16 diode (one-way conducting element), 2, 20 detecting part, 21 first voltage generating means, 23 second voltage generating means, 24 Capacitor, 25 relay element, 26,270 command part, 30 control part, H1, H2 high voltage, L1, L2 low voltage,

Claims (5)

[Claims] 1. A sealing failure detecting device for detecting that an abnormal external force is applied to a sealing seal for sealing a device, wherein the circuit is extended to the sealing seal and operates in response to the abnormal external force. A sensing unit that changes, a detection unit that operates according to a predetermined sequence and detects a change in the circuit of the sensing unit, and a control unit that instructs the detection unit to start a detection operation and receives and records a detection result. And a power supply unit for supplying power to each unit. The sensitive unit is disposed in each sealing seal with a small gap therebetween and electrically connected in parallel to each other. Connecting means for sequentially connecting the electrodes of the sealing seal in series, and a terminating member for connecting the terminals of the electrodes of the sealing seal located at the end of the electrical connection via an element capable of conducting in only one direction And the detection unit includes the electrical unit It is connected to the ends of the first and second electrodes arranged on the sealing seal located at the start end of the series connection, is connected to the first electrode located downstream of the end member in the conduction direction, and is controlled by a control command. A first voltage generating means for generating binary voltages H1 and L1 higher and lower than a reference potential based on the first and second reference potentials;
A second voltage generating means connected to the electrodes for generating high-low binary voltages H2 and L2 of a high voltage H2 higher than the L1 and a low voltage L2 lower than the H1 based on the control command; A capacitor connected to the potential, the other end connected to the output terminal of the first voltage generating means, and connected to the output terminal of the second voltage generating means via the path of the first electrode, the terminating member, and the second electrode A relay element that transmits binary signals Sn and Sa to a control unit in response to a terminal voltage of the capacitive element, and a command unit that issues a control command to the first and second voltage generation units. Further, when the detection unit receives a start command from the control unit, the command unit generates a short-circuit that generates a high voltage H1 in the first voltage generation unit and generates a low voltage L2 in the second voltage generation unit. Detection mode and low voltage for the first voltage generator 1 and two control modes of a disconnection detection mode for generating a high voltage H2 to the second voltage generation means, and in the state of the short-circuit detection mode, the one-way conductive element of the terminal member is short-circuited so as to respond to the sensitive part. The voltage M1 generated in the capacitance element when the circuit of FIG.
In the disconnection detection mode, the signal Sa generated by the relay element when the voltage M2 is smaller than the voltage M2 normally generated at the other end of the capacitive element and the terminal voltages of the capacitive element are the voltages L1 and M1, respectively. A sealing breakage detecting device, wherein a circuit is configured such that a signal Sn generated by the relay element becomes a different binary signal when the terminal voltages of the capacitance elements are the voltages H1 and M2. 2. A sealing breakage detecting device for detecting that an abnormal external force is applied to a sealing seal for sealing a device, wherein the circuit is extended to the sealing seal and operates in response to the abnormal external force. A sensing unit that changes, a detection unit that operates according to a predetermined sequence and detects a change in the circuit of the sensing unit, and a control unit that instructs the detection unit to start a detection operation and receives and records a detection result. A power supply unit that supplies power to each unit, and the sensing unit is disposed in the sealing seal with a small gap therebetween and electrically formed in parallel with three or more electrodes, Connecting means for sequentially connecting the electrodes of each of the sealing seals in series, and in the sealing seal located at the end of the electrical connection, the end of each electrode is unidirectionally connected to at least one of the ends of the other electrodes. Terminating member connected via an element that can conduct only And the detection unit includes:
Based on the control command, a binary voltage H that is high or low with respect to the reference potential
1, a first voltage generating means for generating L1, and a second voltage for generating high and low binary voltages H2 and L2 of a high voltage H2 higher than L1 and a low voltage L2 lower than H1 based on a control command. A capacitance element having one end connected to the reference potential and the other end connected to the output terminal of the first voltage generation means, and a binary signal S corresponding to the terminal voltage of the capacitance element.
a relay element that transmits n and Sa to the control unit; and two ends of a pair of electrodes that are electrodes of a sealing seal located at the start end of the electrical connection and are connected to each other via the end member. Two-to-two switching means for sequentially switching and connecting the electrode pairs between the other terminal of the capacitive element and the two output terminals of the second voltage generating means, and terminating within the paired electrodes A first electrode located on the downstream side in the conduction direction of the member is connected to the other end of the capacitive element, and a second electrode located on the upstream side in the conduction direction of the terminal member among the paired electrodes is connected to the second voltage. A connection unit connected to an output terminal of the generation unit, and a command unit that issues a control command to the first and second voltage generation units and a control command to the switching unit; and the detection unit includes the control unit If a start command is received from the Operating the switching means to sequentially switch the pair of electrodes connected to the other end of the capacitive element and the output terminal of the second voltage generating means, and at the time of each switching, apply the high voltage H1 to the first voltage generating means. A short-circuit detection mode in which the low voltage L2 is generated in the second voltage generating means, and a low voltage L1 is generated in the first voltage generating means.
And the second voltage generating means instructs two control modes of a disconnection detection mode for generating the high voltage H2, and in the state of the short-circuit detection mode, short-circuits the one-way conductive element of the terminating member, and Is changed, the voltage M1 generated in the capacitor is smaller than the voltage M2 normally generated at the other end of the capacitor in the disconnection detection mode, and the terminal voltage of the capacitor is The signal Sa generated by the relay element when the signals M1 and L1 are different from the signal Sn generated by the relay element when the terminal voltages of the capacitors are the voltages M2 and H1 so as to be different binary signals. An encapsulation breakage detection device comprising a circuit. 3. The control unit according to claim 1, wherein, in the short-circuit detection mode or the disconnection detection mode, the binary signal received from the relay element has a terminal voltage of H1. Or, if the signal is the same as the signal Sn issued when the signal is M2, the next start command is issued to the detection unit at a relatively longer interval Tn, while the signal is received from the relay element. When the obtained binary signal is the signal Sa that is generated when the voltage of the capacitive element is L1 or M1, the detection unit is further provided once or twice with a significantly shorter interval Ta. A sealing breakage detecting device which issues a plurality of additional startup commands, comprehensively determines the plurality of detection results, and determines whether the circuit state of the sensitive unit is normal or abnormal. 4. The short-circuit detection device according to claim 1, wherein the control unit includes a clock device that indicates a real time or a timer that counts an elapsed time from a reference time. In the case of the mode or the disconnection detection mode, when the binary signal received from the relay element is the signal Sa emitted when the voltage of the capacitive element is L1 or M1, and it is determined that the circuit of the sensing unit is abnormal. Is
A sealing breakage detecting device for recording the time or the count value of a timer. 5. The sensor according to claim 1, wherein a gap between the opposing electrodes in the sensitive part is narrow even if the gap between the opposing electrodes is cut in many directions. A sealing breakage detecting device characterized in that a bent projection is formed.