JP3340957B2 - Abnormality monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormality monitoring device for automatically detecting when an abnormality occurs in a sensitive switch for detecting an abnormality or a sealing seal for sealing an article.

[0002]

[Prior art]

[0003] Various sensors are used to detect the occurrence of an abnormality in a device to be maintained in a fixed state. Further, the sealing seal applied to an appropriate place of the article senses that an article to be held in a predetermined state has been externally changed. That is, when any change is to be made to the holding state of the article, the operation of changing the apparatus becomes impossible without going through the steps of peeling or cutting the sealing seal. Then, by visually checking the state of the sealing seal and confirming the presence or absence of a change such as peeling, it is confirmed whether or not the state of the article has been changed. 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. Therefore, in order to prevent the 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.

More specifically, as shown in FIG. 12, 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. Therefore, the program of the control board 82 is changed,
If the user wishes to replace 3, the sealing seal 9
1 needs to be peeled or cut.

As a result, by visually checking whether or not the state of the sealing seal 91 has changed, it is possible to determine whether or not the box 85 has been opened and any change has been made to the control board 82. To achieve the same purpose, a sensitive switch that turns on and off when an abnormal operation is applied to the device can be used. Then, the operation of the sensitive switch is monitored to detect an abnormality of the device.

[0007]

However, the method using the sealing seal 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 state of the seal is temporarily changed and the seal is restored and a so-called restoration process is performed,
It is more difficult for a human to detect an abnormality.

Second, even if it is detected that an abnormal external force is applied to the sealing seal 91, the above method cannot detect it in real time. 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.

On the other hand, the method of mounting a sensitive switch on a device and constantly monitoring the operation of the switch requires a power supply for constantly operating the monitoring device. When a power supply is provided at a place where the apparatus is installed, there is often no problem. However, when an abnormality is monitored in a place where it is difficult to take power, such as during transportation of the device or in a remote island, the magnitude of the power consumption becomes a serious problem. Further, when a sensitive switch is used, it is desired to detect not only the operation of the sensitive switch but also the abnormality when an abnormality occurs in the wiring between the monitoring device and the sensitive switch.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is an object of the present invention to reliably detect various abnormalities occurring in a sealing seal for sealing an article and the operation of a sensitive switch for detecting abnormalities. It is an object of the present invention to provide an abnormality monitoring device capable of reducing power consumption while reducing the power consumption.

[0011]

According to a first aspect of the present invention, there is provided an abnormality monitoring apparatus for monitoring an abnormality of an apparatus, comprising: a sensitive switch which is turned on / off in response to an abnormality of the apparatus; and a detecting unit which detects an operation state of the sensitive switch. A connection unit that connects between the output terminal of the normally open switch and the detection unit in the sensitive switch, a control unit that controls the detection unit and receives and records a detection result, and supplies desired power to each unit. A power generating unit that generates a predetermined voltage between the power supply unit and a reference potential according to a command; A capacitive element connected to an output terminal of the open switch; a discharging switching circuit connected between a first terminal of the capacitive element and a reference potential, which opens and closes in response to a command; and a first terminal of the capacitive element Terminal voltage A relay element that responds and transmits the binary signals Sn and Sa to the control unit; and a command unit that controls the voltage generation unit and the switching circuit. The connection unit connects the output terminal of the voltage generation unit to the control unit. A first short-circuit line, which is a starting end, and one end of the output terminal of the normally open switch of the sensitive switch is a terminating end, and a terminal end of the first short-circuit line is a starting end, and a first terminal of the capacitive element is a terminating end. A second short-circuit line, a third short-circuit line having the second terminal of the capacitive element as a start end and the other end of the output terminal of the normally-open switch of the sensitive switch as a terminal end, and a terminal end of the third short-circuit line as a start end And a fourth short-circuit line ending with a reference potential provided in the detection unit, and the command unit sets the output of the voltage generation unit to a charged state in a measurement mode for detecting the presence or absence of abnormality. And for the above discharge The switching circuit is open, the non-measurement mode, in the abnormality monitoring device, characterized in that the closed switching circuit for the charge-discharge as well as to turn off the output of the voltage generating unit.

In the present invention, the first thing to be particularly noted is
The point is that the connection between the output terminal of the normally open switch of the sensitive switch and the detection section is made by a connection section, and the connection section consists of four short-circuit lines that reciprocate twice between the two. That is, the connection unit has a first short-circuit line having the output terminal of the voltage generation unit of the detection unit as a start terminal and one end of the output terminal of the sensitive switch as a terminal unit, and a terminal unit of the first short-circuit line as a start terminal. A second short-circuit line terminating at the first terminal of the capacitive element of the detection unit, a third short-circuit line terminating at the second terminal of the capacitive element as a starting end, and terminating at the other output terminal of the sensitive switch; There is a fourth short-circuit line having a terminating end at the end of the third short-circuit line and a terminating end at a reference potential provided in the detection unit (see reference numerals 151 to 154 in FIG. 1).

Since the capacitive element is connected between the end of the second short-circuit line and the start of the third short-circuit line, in the measurement mode in which the voltage is generated in the voltage generator, the normal state (switch In (open), the capacitor is in a charged state, and a terminal voltage is generated between the reference potential and the first terminal. On the other hand, when the normally open switch is closed in response to abnormality or the like, both ends of the capacitor are short-circuited by the switch, the capacitor is not charged, and no terminal voltage is generated at the first terminal.

In another abnormal mode, when the first or second short-circuit line and the third or fourth short-circuit line are short-circuited for some reason, the second terminal of the capacitive element is similarly connected. No terminal voltage is generated. A short circuit between the first or second short-circuit line and the third or fourth short-circuit line described above may be caused, for example, by disconnecting the sensitive switch as a sensor from the detection unit by using a conductive material such as iron. Occurs when the communication circuit is cut with a blade.

Further, as another abnormal mode, the first
Even when the fourth short-circuit line is disconnected (open circuit), the capacitance element is not charged, and no terminal voltage is generated at the second terminal.
The above-described situation in which the first to fourth short-circuit lines are disconnected (open circuit) may be caused, for example, by disconnecting the sensitive switch from the detection unit and cutting the communication circuit with an insulating blade such as ceramic. Occurs.

As described above, in the measurement mode, the capacitance element is in a voltage state in a normal state, whereas the capacitance element is in a non-voltage state in an abnormal state. The voltage state of the capacitance element is transmitted to the control unit as binary signals Sn and Sa by the relay element. The detectable abnormality mode can detect not only the operation of the sensitive switch but also a short circuit or disconnection of the connecting portion, and various abnormality modes can be detected. Subsequently, when the measurement mode is switched to the non-measurement mode, the output of the voltage generator is turned off,
The charge discharge switching circuit is closed. As a result, the charge charged in the capacitor is discharged through the switching circuit for discharging, and the circuit is reset.

The measurement mode may be executed at regular intervals corresponding to the duration of the abnormal phenomenon that occurs. That is, if the abnormal phenomenon lasts for at least A millisecond, it is sufficient to operate the measurement mode at intervals based on the time obtained by subtracting the detection time and the allowance time from A millisecond. If the measurement frequency increases,
This is because the power consumption increases in proportion thereto, and wasteful power consumption increases.

It should be particularly noted that since the element for detecting voltage is a capacitive element, the current flowing from the power supply is a charging current that flows through the capacitive element only once when switching to the measurement mode. As a result, the power consumption is extremely low. Further, even though there are a plurality of detectable abnormality modes, only one measurement is required, so that the power consumption is further reduced. As described above, according to the present invention, it is possible to provide an abnormality monitoring device that can reliably detect various types of abnormalities and can reduce power consumption.

Next, a second invention of the present application is an abnormality monitoring device for monitoring an abnormality of a device having a sealing seal for preventing a state change, wherein a single or a plurality of devices for sealing a main part of the device are provided. A sealing section extending in each of the sealing seals, a sensing section for changing a circuit in response to an abnormal external force, a detection section for detecting a change in the circuit of the sensing section, and controlling the detection section. A control unit that receives and records the detection result, and a power supply unit that supplies desired power to each unit. The sensitive unit is electrically insulated from the sealing seal via a small gap. Forming the first and second electrodes facing each other, and connecting the first and second electrodes of each sealing seal sequentially in series to form first and second electrode connection paths; Of the first electrode of the sealing seal located at the end connected in series with the start end A first short-circuit line ending at an end, a first end of the first electrode of the sealing seal located at the end of the serial connection via the first electrode connection path, starting at the end of the first short-circuit line, A second short-circuit line having a connection conductor extending from the detection portion to the detection portion as a termination portion, and a connection conductor extending from the detection portion to the tip of the second electrode of the sealing seal located at the tip of the series connection as a start end, and A third short-circuit line ending at the end of the second electrode of the sealing seal located at the end of the series connection via the connection path, and a reference provided in the detection unit ending at the end of the third short-circuit line as the starting end A fourth short-circuit line ending at a potential, wherein the detecting unit is connected to the starting end of the first short-circuit line of the sensitive unit and applies a predetermined voltage between the sensing unit and a reference potential according to a command. A voltage generator to be generated,
A capacitive element having a first terminal connected to the end of the second short-circuit line of the sensitive part and a second terminal connected to the beginning of the third short-circuit line; and a capacitor connected between the first terminal of the capacitive element and a reference potential. A switching circuit for discharging that is connected and opened and closed according to a command, a relay element that transmits binary signals Sn and Sa to a control unit in response to a terminal voltage of the first terminal of the capacitive element, the voltage generation unit, A command unit for controlling a switching circuit, wherein in the measurement mode for detecting the presence or absence of an abnormality, the command unit sets the output of the voltage generation unit to a voltage state and opens the switching circuit for discharging. In the non-measurement mode, the abnormality monitoring device is characterized in that the output of the voltage generator is turned off and the switching circuit for discharging is closed.

The circuit configuration of the present invention is such that the sensitive switch is not provided in the first invention but a sensitive portion is provided instead of the connecting portion. However, the sensitive part is similar in circuit to the connecting part of the first aspect of the invention, and is constituted by an electrode having a part of the second and third short-circuit lines formed on a sealing seal (FIG. 6). reference). Then, the first electrode on the second short-circuit line and the second electrode on the third short-circuit line formed on the sealing seal are electrically insulated and opposed via a narrow gap. By narrowing the gap between the two electrodes, the sensitive part can easily change the circuit in response to an abnormal external force.

That is, when an attempt is made to cut or peel off the sealing seal, a part of the electrode is broken and the circuit of the electrically connected electrode body is opened (disconnected) (disconnected mode). ). 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 small gap. During the cutting, the first electrode and the second electrode are short-circuited, and as a result, the second short-circuit line and the third short-circuit line are short-circuited (short-circuit mode).

On the other hand, when the sealing seal is to be cut using a non-conductive blade such as a ceramic, an insulator disconnects the series circuit of the first or second electrode at least during the cutting. (Disconnect mode). 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 easily cause a change in the circuit configuration.

Then, similarly to the first invention, when the first or second short-circuit line and the third or fourth short-circuit line in the sensitive section are short-circuited for some reason,
When the fourth short-circuit line is disconnected (open circuit), no voltage is applied between the terminals of the capacitive element. That is, the voltage between the terminals of the capacitive element is in a voltage state in a normal state, whereas the voltage between the terminals of the capacitive element is changed to a non-voltage state when the above-described abnormality occurs in the sensitive portion. Therefore, it is possible to immediately detect an abnormality or the like in which the sealing seal is broken or peeled off. The other features are the same as those of the first invention, and it is possible to provide an abnormality monitoring device that can reliably detect various types of abnormalities and can reduce power consumption.

According to a seventh aspect of the present invention, the protruding portion of the sensitive portion opposing the electrode is bent so that the gap between the opposing electrodes becomes narrow even if the line is cut in many directions. It is preferable that a portion be formed (see the protrusion 115 in FIG. 6 of the second 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.

According to a third aspect of the present invention, in the second aspect, the apparatus further comprises a sensitive switch which is turned on / off in response to an abnormal condition. The abnormality monitoring device is characterized in that a first terminal is connected to an end of the first short-circuit line of the sensitive part and a second terminal is connected to an end of the third short-circuit line.

According to the second aspect of the present invention, as in the first aspect, the normally open switch of the sensitive switch is connected between the terminal of the first short-circuit line and the terminal of the third short-circuit line. The circuit operates in the same manner as in the first aspect of the invention, and is capable of detecting an abnormality of the device by the sensitive switch, and a circuit abnormality in the sensitive portion provided between the sensitive switch and the detecting portion, that is, a sealing seal. And the like can be detected at the same time. For others,
This is the same as the second invention.

The sensitive switch according to the first and third aspects of the present invention is disposed in a connector portion of the apparatus, and operates in response to insertion / removal (mechanical operation) of the connector. There is something to do. As a result, for example, when the connector is inserted and removed in order to modify the device, the sensitive switch always operates. Therefore, even if the both sides of the connector are short-circuited by a jumper wire or the like and the connector is pulled out, the operation of the connector can be detected so that the circuit is not opened (detection of abnormality without circuit change).

When a change in the state of the sensitive section or the sensitive switch is detected via the detecting section, the control section sends a short interval Ta to the detecting section. In addition, it is preferable to issue one or more additional measurement commands and determine the normality or abnormality of the apparatus by comprehensively determining the plurality of detection results. In the detection only once, the abnormal signal Sa may be erroneously generated due to noise or the like. Therefore, when the abnormal signal Sa is issued, a plurality of searches are performed at short intervals, and a plurality of detection results are comprehensively determined.
This is because erroneous determination can be avoided.

Also, as described in claim 6,
The control unit is provided with a clock device that represents the real time or a timer that counts the elapsed time from the reference time, and when the abnormality signal Sa is issued in the case of the short-circuit detection mode or the disconnection detection mode and it is determined that the device is abnormal, the It is preferable to record the time or the count value of the timer.

When a timer is used, the timer is set to a reference time at which it is easy to ascertain the time of a subsequent occurrence of an abnormality such as a factory shipment. 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.

It is preferable that the power supply unit of the monitoring device has a built-in battery so that each unit can supply desired power for a certain period of time even when there is no external power supply. The battery may be a primary battery or a secondary battery. As a result, it is possible to reliably ascertain any alteration or abnormality of the device that has occurred in a state where power cannot be taken from the outside, such as during transportation of the device or storage in a warehouse. And, due to the characteristic of low power consumption, the life of the battery can be greatly extended.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 This is an abnormality monitoring apparatus for monitoring an abnormality of an apparatus.
As shown in FIGS. 1 and 2, a plurality of sensitive switches 5 that are turned on / off in response to an abnormality of a device such as a pachinko machine (FIG. 12), a detecting unit 2 that detects an operation state of the sensitive switches 5, A connection unit 15 for connecting the output terminal of the normally open switch 51 of the switch 5 to the detection unit 2; a control unit 30 for controlling the detection unit 2 and receiving and recording a detection result; Power supply 40
The abnormality monitoring device 1 includes:

The detecting section 2 includes a voltage generating section 21 for generating a predetermined voltage between the detecting section 2 and a reference potential (ground) in accordance with a command. A capacitive element 24 connected to the output terminal of the open switch 51, a discharging switching circuit 26 connected between the first terminal of the capacitive element 24 and the reference potential, and opened and closed according to a command; A relay element 25 for transmitting binary signals Sn and Sa to the control unit in response to the terminal voltage of the first terminal; a voltage generation unit 21 and a switching circuit 26
And a command unit 28 for controlling the

The connecting section 15 has a normally open switch 51 of the sensitive switch 5 with the output end of the voltage generating section 21 as a starting end.
Short-circuit line 151 having one of its output terminals as a termination part
And a second short-circuit line 152 having a terminal end of the first short-circuit line 151 as a start end and a first terminal of the capacitive element 24 as a terminal end.
A third short-circuit line 153 having the second terminal of the capacitive element 24 as a starting end and the other end of the output terminal of the normally open switch 51 of the sensitive switch 5 as an end, and a terminating end of the third short-circuit line 153 as a starting end. And a fourth short-circuit line 154 ending at a reference potential provided in the detection unit 2.

In the measurement mode for detecting the presence or absence of an abnormality, the command section 28 sets the output of the voltage generation section 21 to a charged state and opens the switching circuit 26 for discharging.
In the non-measurement mode, the output of the voltage generator 21 is turned off and the switching circuit 26 for discharging electric charge is closed.

A part of the sensitive switch 5 is arranged in a connector section for connecting circuits arranged in various parts of the apparatus, and operates in response to insertion and removal of the connector (the connector section is For example, reference numerals 298 and 2 in FIGS.
99). When the control unit 30 detects a change in the state of the sensitive switch 5 via the detection unit 2, as shown in FIG.
An additional measurement command is issued one more time at an interval Ta shorter than n, and the plurality of detection results are comprehensively determined to determine whether the apparatus is normal or abnormal. The control unit 30
Has a clock device 31 that indicates the real time, as shown in FIG. 2, and when an abnormality of the device is detected via the detection unit 2, the time is recorded.

The following is a supplementary explanation for each.
This example is an abnormality monitoring device 1 that detects an abnormality of a device provided with a sensitive switch as a sensor for detecting an abnormality. The voltage generation unit 21 of the detection unit 2 includes transistors T1 and T2 that perform a switching operation as shown in FIG. 1, and one of the transistors T1 and T2 is turned on (conduction) as shown in FIG. )Operate. That is, in the non-measurement mode, the transistor T1 is turned off and the transistor T1 is turned off.
2 is on, output terminal and reference potential (ground)
And no potential difference occurs between them. And in the measurement mode,
The transistor T1 is turned off, the transistor T2 is turned on, and the voltage Vo is generated at the output terminal.

The switching circuit 26 for discharging is
It comprises a switching transistor T3 and a resistor R2 which is relatively smaller than the output resistor R1 of the voltage generator (R2 ≦ R
1). Then, as shown in FIG. 3, in the non-measurement mode, the transistor T3 is turned on (conducting) to discharge the electric charge of the capacitor 24, and in the measurement mode, the transistor T3 is turned off. Can be charged. A reference potential (ground) side of the capacitive element 24 is connected to a transistor T that performs a switching operation.
4 is grounded. This is because the terminals of the capacitive element 24 are kept at the reference potential (ground) even when the third and fourth short-circuit lines 153 and 154 are disconnected.

When the monitoring device 1 enters the measurement mode shown in FIG. 3, when the monitoring device 1 is in the normal (normal) state shown in FIG. 2, the capacitance element 24 has a time constant td determined by the capacitance C and the resistance R1. To generate a voltage Vo at both ends. Then, the relay element 25 operates at an appropriate read timing tr after the elapse of the time constant td from the start of the measurement mode, and transmits the binary signal Sn indicating normality.

However, when one of the switches 51 of the plurality of sensitive switches 5 is closed due to some abnormality, both ends of the capacitive element 24 are short-circuited, and the capacitive element 24 is closed.
No voltage is generated at both ends. Further, the first or second short-circuit line 151, 152 and the third or fourth short-circuit line 153, 1
Similarly, if a short circuit occurs between the capacitor 54 and the capacitor 54, no terminal voltage is generated between the ground of the capacitive element 24 and the second terminal. (First abnormal mode).

The first to fourth short-circuit lines 151 to 15
Similarly, when the line 4 is disconnected due to some abnormality such as a line disconnection, no voltage is generated in the capacitive element 24 (second abnormal mode). Then, the relay element 25 operates at an appropriate read timing tr after the elapse of the time constant td from the start of the measurement mode, and transmits the binary signal Sa indicating abnormality.
Note that, in the case of this signal reading, when the third and fourth short-circuit lines in the second abnormal mode are disconnected, the potential on the ground side of the capacitive element 24 is prevented from floating as described above. First, the transistor T4 is operated before reading, so that the terminal of the capacitor 24 is reliably held at the reference potential (ground).

Next, when the measurement cycle is completed, a reset signal is issued from the command section 28 and the detecting section 2
Enters the non-measurement mode. Then, as shown in FIG.
The operations of the transistors T1 and T2 of the voltage generator 21 are inverted, and the output voltage of the voltage generator 21 becomes zero. And
The switching transistor T3 of the switching circuit 26 for discharging is turned on, and the charge of the capacitor 24 is discharged with a short time constant due to the low resistance R2 (R2 ≦ R1). Restore.

When an abnormality is detected, as shown in FIG. 4, the control unit 30 issues one additional measurement command to the detection unit 2 at a short interval Ta, and outputs a plurality of additional measurement commands. The detection result is comprehensively determined to determine whether the apparatus is normal or abnormal. Therefore, if the detection result is only once,
Although the abnormal signal Sa may be erroneously generated due to noise or the like, erroneous determination can be avoided by comprehensively determining a plurality of detection results.

The above-mentioned first or second short-circuit line 151, 152 and third or fourth short-circuit line 153, 15
For example, a situation in which the connection circuit 4 is short-circuited occurs when, for example, the sensitive switch 5 serving as a sensor is disconnected from the detection unit 2 and the communication circuit 15 is cut by a conductive blade such as iron. In addition, when the above-described first to fourth short-circuit lines 151 to 154 are disconnected (opened), for example, the sensitive switch 5 is disconnected from the detection unit 2,
Occurs when the communication circuit is cut by an insulating blade such as ceramic.

As described above, the abnormal modes that can be detected by the present embodiment can detect not only the operation of the sensitive switch 5 but also a short circuit or disconnection in the connecting portion 15, and various abnormal modes can be detected. is there. The execution of the measurement mode is performed at fixed intervals corresponding to the duration of the abnormal phenomenon that is expected to occur. That is, if the abnormal phenomenon continues for at least A millisecond, the measurement mode is executed at intervals based on a time obtained by subtracting the detection time and the margin time from A millisecond. This is because if the measurement frequency increases, the power consumption increases in proportion thereto, and the wasteful power consumption increases.

In addition, since the element for detecting the voltage in the device 1 is the capacitive element 24, the current flowing from the power supply is a charging current that flows through the capacitive element 24 only once when the mode is switched to the measurement mode. Very little power is required. Furthermore, despite the fact that there are a plurality of detectable abnormal modes, it is sufficient to execute a single measurement mode without switching to a plurality of different measurement modes. This also reduces power consumption. In addition, since the power supply unit 40 of the monitoring device 1 of the present embodiment has a built-in battery, it is possible to reliably prevent the alteration or abnormality of the device that occurs during the transportation of the device without an external power supply or during the storage in a warehouse. You can figure out. In addition, the low power consumption characteristics can significantly extend the life of the battery.

Further, as shown in FIG. 2, the control unit 30
Since it has the clock device 31 that indicates the real time, the detection unit 2
When an abnormality of the apparatus is detected through the memory, the occurrence 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 2, and reference numeral 35 denotes a CPU that controls the units 31 to 33 and 36. . As described above, according to the present example, it is possible to obtain the abnormality monitoring device 1 that can reliably detect various types of abnormalities and can reduce power consumption.

Embodiment 2 This embodiment is an abnormality monitoring device 1 for monitoring an abnormality of a device having a sealing seal 81 for preventing a state change. As shown in FIGS. 6 and 7, the monitoring device 1 has a plurality of sealing seals 81 for sealing the main parts of the device, and extends in each of the sealing seals 81 to change a circuit in response to an abnormal external force. Sensitive unit 10 and detecting unit 2 for detecting a change in the circuit of sensitive unit 10
And a control unit 30 that controls the detection unit 2 and receives and records the detection result, and a power supply unit 40 that supplies desired power to each unit.

FIG. 5 shows an example of the arrangement of the abnormality monitoring device 1 and the sealing seal. A plurality of sealing seals 81 are attached to a main portion of a box 85 that covers a control board 82 such as a pachinko machine. 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 trying to make any changes to the memory 83 or the control board 82, an abnormal external force such as breaking the sealing seal 81 is usually applied to the sealing seal 81.

As shown in FIG. 6, the sensitive portion 10 electrically connects the first and second electrodes 11, 12 which are electrically insulated to the sealing seal 81 (810, 811) through a narrow gap. The connection path between the first and second electrodes 11 and 12 is formed by connecting the first and second electrodes 11 and 12 of the sealing seals 81 (810 and 811) in series.

The sensing unit 10 has a sealing seal 810 located at the end connected in series with the detection unit 2 as a starting end.
A first short-circuit line 131 ending at the end of the first electrode 11 and a starting end ending at the end of the first short-circuit line 131, and connected to the front end of the series connection via the connection path of the first electrode 11. Short-circuit line 1 ending in a connection conductor from the tip of first electrode 11 to the detection section of sealing seal 811
32 and a connection conductor extending from the detection unit 2 to the tip of the second electrode 12 of the sealing seal 811 located at the tip of the series connection as a starting end, and via the connection path of the second electrode 12 to the end of the series connection. A third short-circuit line 133 ending at the end of the second electrode 12 of the sealing seal 810 located at the end, and a reference potential provided within the detection unit 2 at the ending end of the third short-circuit line 133 as the starting end. And a fourth short-circuit line 134.

The detecting section 2 is connected to the start end of the first short-circuit line of the sensitive section 10 and generates a predetermined voltage between the sensing section 2 and a reference potential according to a command. A capacitance element 24 having a first terminal connected to the end of the short-circuit line 132 and a second terminal connected to the start end of the third short-circuit line 133, and a command connected between the first terminal of the capacitance element 24 and the reference potential. And a relay element 25 for transmitting the binary signals Sn and Sa to the control unit in response to the terminal voltage of the first terminal of the capacitive element 24.
And a command unit 28 for controlling the voltage generation unit 21 and the switching circuit 26. In FIG.
Reference numerals 8 and 299 denote connectors for connecting lines.

In the measurement mode for detecting the presence or absence of an abnormality, the command section 28 sets the output of the voltage generation section 21 to a voltage state and opens the switching circuit 26 for discharging. The output is turned off and the switching circuit 26 for discharging is closed. And
The opposing electrodes 11 and 12 are provided on opposing portions of the electrodes 11 and 12.
, So that even if the gap of
A bent corrugated projection is formed.

The circuit configuration of this embodiment is different from the first embodiment in that the sensitive switch 5 is not provided and the sensitive portion 10 is provided instead of the connecting portion 15. However, the sensitive part 10
Is similar to the connecting portion 15 in circuit, and a part of the second and third short-circuit lines 132 and 133 is sealed with a sealing seal 81.
(810, 811). Then, the first electrode 11 on the second short-circuit line 132 and the second electrode 12 on the third short-circuit line 133
Are electrically insulated from each other via a small gap, and by making the gap between the two 11 and 12 small,
The sensitive part 10 can easily change the circuit in response to the abnormal external force.

That is, the sealing seal 81 (81) shown in FIG.
0,811) is cut or peeled off, for example, the electrode 1
A circuit of the connected body of the electrodes 11 or the connected body of the electrodes 12 which is partially integrated by breaking part of 1 or 12 is opened (disconnected mode). Also, the sealing seal 81 (81
For example, when the sealing seal 81 (810, 811) is cut by using a conductive cutting tool such as metal to break (0, 811), the sealing seal 81 (810, 811) is opposed to a small gap in the middle of the cutting. The electrodes 11 and 12 are the first electrode 11 and the second electrode 11.
The electrode 12 is short-circuited, and the second short-circuit line 132 and the third
A short circuit is made between the short circuit line 133 (short circuit mode).

On the other hand, when the sealing seal 81 (810, 811) is to be cut using a non-conductive cutting tool such as a ceramic, for example, the insulating material is removed at least in the middle of the cutting. The series circuit of the electrodes 11 and 12 is disconnected (disconnection mode). As described above, when an abnormal external force is applied to the sealing seal 81 (810, 811), the sensitive section 10 is configured to easily cause a change in the circuit configuration.

Then, as in the case of the first embodiment,
The first or second short-circuit line 131, 1 in the sensitive part 10
In the case where the short circuit between the L.32 and the third or fourth short-circuit lines 133 and 134 is short-circuited for some reason, and in the case where the first to fourth short-circuit lines 131 to 134 are disconnected (open circuit),
No voltage is applied between the terminals of the capacitive element 24. That is, the voltage between the terminals of the capacitive element 24 is in a voltage state in a normal state, whereas the voltage between the terminals of the capacitive element 24 is changed to a non-voltage state when the above-described abnormality occurs in the sensitive unit 10. Others are the same as the first embodiment.

Embodiment 3 In this embodiment, as shown in FIGS. 8 and 9, the apparatus according to Embodiment 2 further includes a sensitive switch 5 which is turned on / off in response to an abnormality. The output terminal of the normally open switch 51 is connected to the first short-circuit line 1
The first terminal of the third short circuit line 133 is connected to the first terminal of the third short circuit line 133.

That is, this embodiment is different from the second embodiment in that
As in the first embodiment, the normally open switch 51 of the sensitive switch 5 is connected between the end of the first short-circuit line 131 and the end of the third short-circuit line 133. The circuit operates in the same manner as in the first embodiment, and can detect an abnormality of the device by the sensitive switch 51. The circuit in the sensitive unit 10 provided between the sensitive switch 51 and the detection unit 2 can be detected. Abnormality, that is, the sealing seal 81 (81
0,811) can be detected at the same time. Others are the same as those of the first and second embodiments.

Fourth Embodiment As shown in FIG. 10, this embodiment is provided with four abnormality sensing units each including the sensitive switch 5, the connection unit 15, and the detection unit 2 shown in the first embodiment, and This is another embodiment in which one abnormality sensing unit including the sensing unit 10 and the detection unit 2 shown in Example 2 is provided, and these are controlled by one control unit 3.

That is, as shown in FIG. 10, the main part of the abnormality monitoring device 1 of this embodiment is to connect the four sensitive switches 5 to the control unit 3 via the connection unit 15 and the detection unit 2, respectively. One sensing unit 10 through which the sealing seal 81 (810, 811) is inserted is connected to the control unit 3 via the detection unit 2.
Then, the control unit 3 receives and records the detection signals Sa or Sn transmitted from the five detection units 2.

FIG. 11 shows a main part of the external structure of the apparatus 1. In the circuit section 6 accommodating the control section 3 and the detection section 2, four connecting sections 15 and one sensitive section 10 are provided. Is connected. In the figure, reference numeral 19 denotes a relay cable to the outside, which houses a connection line to an external power supply and a communication line. Others are the same as those of the first to third embodiments.

[0063]

As described above, according to the present invention, it is possible to reliably detect various kinds of abnormalities occurring in a sealing seal for sealing an article, the operation of a sensitive switch for detecting abnormalities, and the like, and to reduce power consumption. Can be obtained in which an abnormality monitoring device can be suppressed to an extremely small level.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram illustrating an abnormality monitoring device according to a first embodiment mainly in a detection unit.

FIG. 2 is a system configuration diagram illustrating an abnormality monitoring device according to the first embodiment mainly in a control unit;

FIG. 3 is a time chart showing operating states of main elements in a measurement mode and a non-measurement mode (when the apparatus is normal).

FIG. 4 is a schematic diagram showing aspects of intervals Tn and Ta of measurement commands issued from a control unit.

FIG. 5 is a diagram illustrating an example of an arrangement of an abnormality monitoring device and a sealing seal according to a second embodiment.

FIG. 6 is a system configuration diagram illustrating an abnormality monitoring device according to a second embodiment, mainly illustrating a detection unit;

FIG. 7 is a system configuration diagram illustrating an abnormality monitoring device according to a second embodiment, mainly showing a control unit;

FIG. 8 is a system configuration diagram illustrating an abnormality monitoring device according to a third embodiment, mainly showing a detection unit;

FIG. 9 is a system configuration diagram illustrating an abnormality monitoring device according to a third embodiment, mainly showing a control unit;

FIG. 10 is a system configuration diagram of a main part of an abnormality monitoring device according to a fourth embodiment.

FIG. 11 is an external configuration diagram of a main part of an abnormality monitoring device according to a fourth embodiment.

FIG. 12 is a diagram showing an arrangement of a control member and a sealing seal of a conventional pachinko machine.

[Explanation of symbols]

 1. . . 14. abnormality monitoring device; . . Connection part, 151. . . First short-circuit line 152. . . Second short-circuit line, 153. . . Third short-circuit line, 154. . . 1. a fourth short-circuit line; . . Detection unit, 21. . . 23. a voltage generator; . . Capacitor, 26. . . 4. discharge switching circuit; . . Sensitive switch,

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Mitsutoshi Inoue 4-7-1, Myojin-cho, Hachioji-shi, Tokyo Hachioji ON Building 3F Three Systems Engineering Co., Ltd. (56) References JP-A No. 11- 109865 (JP, A) JP-A-11-295165 (JP, A) JP-A-1-155561 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01R 31/00 A63F 7 / 02 326 A63F 7/02 334 G08B 13/02

Claims (7)

(57) [Claims] An abnormality monitoring device for monitoring an abnormality of an apparatus, comprising: a sensitive switch that is turned on / off in response to an abnormality of the apparatus; and a detection unit that detects an operation state of the sensitive switch.
A connection unit that connects between the output terminal of the normally open switch and the detection unit in the sensitive switch, a control unit that controls the detection unit and receives and records a detection result, and a power supply that supplies desired power to each unit A detection unit, wherein the detection unit includes a voltage generation unit that generates a predetermined voltage between the reference voltage and a reference potential in accordance with a command; , A discharging switching circuit connected between a first terminal of the capacitive element and a reference potential and opened and closed according to a command, and a terminal of the first terminal of the capacitive element A relay element that transmits binary signals Sn and Sa to the control unit in response to the voltage;
A command unit for controlling the voltage generation unit and a switching circuit, wherein the connection unit has an output terminal of the voltage generation unit as a start terminal and one of output terminals of a normally open switch of the sensitive switch as a termination unit. A first short-circuit line, and an end of the first short-circuit line as a start end.
A second short-circuit line terminating at a terminal, a third short-circuit line terminating at the second terminal of the capacitive element as a starting end, and terminating at the other output terminal of the normally open switch of the sensitive switch;
A fourth short-circuit line having a terminating end as a starting end of the third short-circuiting line and a reference potential provided in the detecting unit as a terminating end. In the non-measurement mode, the output of the voltage generation unit is turned off and the switching circuit for charge discharge is closed in the non-measurement mode. An abnormality monitoring device characterized by the following. 2. An abnormality monitoring device for monitoring an abnormality of a device having a sealing seal for preventing a state change, wherein the sealing device seals a main part of the device, and a plurality of the sealing seals. A sensing part extending to each stop seal and changing a circuit in response to an abnormal external force, a detecting part for detecting a change in the circuit of the sensing part, controlling the detecting part, and receiving and recording the detection result. And a power supply unit that supplies desired power to each unit. The sensitive unit is a first unit that is electrically insulated and opposed to the sealing seal via a small gap. The first electrode and the second electrode of each sealing seal are sequentially connected in series to form the first and second electrode connection paths, and are connected in series with the detection unit as a starting end. The first end of the first end of the sealing electrode located at the end The connection conductor from the tip of the first electrode of the sealing seal located at the tip of the series connection via the first electrode connection path to the detection unit, with the end line of the short-circuit line and the end of the first short-circuit line as the starting end. A second short-circuit line as an end portion, and a connection conductor extending from the detection portion to a tip of the second electrode of the sealing seal located at the tip of the series connection as a start end, and the end of the series connection via the second electrode connection path. A third short-circuit line ending at the end of the second electrode of the sealing seal located at the end, and a fourth short-circuit ending at the reference end provided in the detection unit with the ending end of the third short-circuit line as the starting end A voltage generator connected to a start end of a first short-circuit line of the responsive unit and configured to generate a predetermined voltage between the responsive unit and a reference potential according to a command; Connect the first terminal to the end of the second short-circuit line of And a capacitive element for connecting the second terminal to the beginning of the in-first the capacitive element
A discharging switching circuit connected between a terminal and a reference potential and opened and closed according to a command;
A relay element that transmits binary signals Sn and Sa to the control unit in response to the terminal voltage of the terminal, and a command unit that controls the voltage generation unit and the switching circuit, wherein the command unit includes:
In the measurement mode for detecting the presence / absence of abnormality, the output of the voltage generator is set to a voltage state and the switching circuit for discharging is opened, and in the non-measurement mode, the output of the voltage generator is turned off and An abnormality monitoring device characterized by closing a switching circuit for discharging. 3. The apparatus according to claim 2, further comprising a sensitive switch which is turned on / off in response to an abnormality, wherein an output terminal of a normally open switch of the sensitive switch is provided.
An abnormality monitoring device, wherein a first terminal is connected to an end of the first short-circuit line of the sensitive section, and a second terminal is connected to an end of the third short-circuit line. 4. The sensor according to claim 1, wherein the sensitive switch is disposed on a connector of the device.
An abnormality monitoring device that operates in response to insertion and removal of the connector. 5. The control unit according to claim 1, wherein when the control unit detects a change in the state of the sensitive unit or the sensitive switch via a detection unit, the control unit sends a signal to the detection unit. An abnormality monitoring device characterized by issuing an additional measurement command once or more times at a short interval Ta and judging whether the device is normal or abnormal by comprehensively judging the plurality of detection results. 6. The control unit 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. An abnormality monitoring apparatus characterized in that, when an abnormality of the apparatus is detected through the apparatus, the time or the count value of a timer is recorded. 7. The device according to claim 2, wherein a gap between the electrodes facing each other is narrow even if the gap between the electrodes facing each other is cut in many directions. An abnormality monitoring device, characterized in that a bent projection is formed so that