CN105879383B - Mahjong machine fault analysis alarm method and control circuit applied by same - Google Patents
Mahjong machine fault analysis alarm method and control circuit applied by same Download PDFInfo
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- CN105879383B CN105879383B CN201410606998.XA CN201410606998A CN105879383B CN 105879383 B CN105879383 B CN 105879383B CN 201410606998 A CN201410606998 A CN 201410606998A CN 105879383 B CN105879383 B CN 105879383B
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Abstract
The invention discloses a mahjong machine fault analysis alarm method and a control circuit applied to the same, wherein the mahjong machine motor control circuit comprises a mahjong machine control computer board, a power supply circuit, a motor control circuit and a sensor feedback circuit, and is characterized in that: a motor current detection circuit is added, after a corresponding motor control circuit of a fault mechanism breaks down, motors of other normal mechanisms stop working immediately, the motors of the fault mechanism are still controlled to continue working, whether the motor circuits have working current or not is measured, when no motor working current exists, the motor control circuit of the corresponding fault mechanism is judged to have open-circuit fault, and an open-circuit fault code of the motor control circuit of the corresponding fault mechanism is reported; and when the working current of the motor exists, judging that the sensor feedback circuit corresponding to the fault mechanism breaks down, and reporting a fault code of the sensor feedback circuit corresponding to the fault mechanism.
Description
Technical Field
The invention relates to a mahjong machine fault analysis and alarm method and a control circuit applied to the mahjong machine fault analysis and alarm method.
Background
When a motor control circuit of the existing mahjong machine breaks down, the fault alarm prompt can be generally judged only according to whether signals of a positioning sensor of a motor mechanism are normal, and when the motor stops at the position of the positioning sensor, the positioning sensor has signals, and a single chip microcomputer considers that the motor mechanism is normal; when the motor is started and leaves the position of the positioning sensor, the signal of the positioning sensor disappears, and the single chip microcomputer considers that the motor mechanism is normal; when the motor is running, the positioning sensor is changed from no signal to a signal, and the single chip microcomputer considers that the motor mechanism is normal; however, when the single chip microcomputer controls the motor to start and leave the position of the positioning sensor, the signal of the positioning sensor still does not disappear, the single chip microcomputer considers that the motor mechanism is abnormal, a corresponding fault code is reported, the single chip microcomputer cannot distinguish whether the motor open-circuit fault does not leave the position of the positioning sensor or the sensor short-circuit fault exists, and the signal of the sensor always exists; when the single chip microcomputer controls the motor to operate, the positioning sensor has no signal all the time, the single chip microcomputer considers that the motor mechanism is abnormal, a corresponding fault code is reported, the single chip microcomputer cannot distinguish whether the motor is stopped or the sensor is in an open-circuit fault, the signal cannot be transmitted to the single chip microcomputer, and the fault alarm process of the original lifting motor system in the lifting process is shown in a figure 1. The suspected miscellaneous disease fault of the mahjong machine usually occurs in the occasional open circuit of a motor circuit or the occasional open circuit fault of a sensor circuit caused by poor contact of a motor control circuit and a sensor feedback circuit, but the motor and the sensor are good, in actual after-sales service, the two types of faults can cause the sensor to continuously have no feedback signal, but report the same fault code, after a maintenance worker arrives at the site, the fault is the occasional open circuit due to poor contact of the circuit, the fault phenomenon is usually repeated, the fault point range is large, once the fault cannot be verified, the same fault is very easy to cause the repeated on-door maintenance, and the user experience feeling is not good.
Furthermore, most of the motor coils and capacitors of the existing mahjong machine are pluggable, but when an open circuit fault occurs in a motor capacitor circuit, the power of the motor is reduced, the starting time delay is increased, the motor is automatically reversed, and the fault early warning of a motor mechanism is easily reported; the temperature rises sharply, and the motor coil or the motor gear is easy to burn due to thermal fatigue, so that the motor needs to be maintained in time to avoid fault expansion; however, after the motor capacitor circuit of the mahjong machine has an open circuit fault, the mahjong machine can generally run at a high temperature for a period of time, and users are not easy to find the fault and often cannot find the fault until the fault is detected; although the motor mechanism fault can be early warned through technical processing, the fault warning code is not detailed enough, and once the motor coil is replaced but the capacitor is not replaced, the mahjong machine can be continuously repaired due to negligence in processing.
And after the motor of the existing mahjong machine is stuck, the fault (for example, the large-disk motor and the conveying motor are stuck) is possibly not easy to be noticed, and the fault is also easy to be judged to be the fault of the large-disk without the mahjong pieces by mistake, the conveying circuit is open and the light-operated failure of the mahjong pieces is seen by S1, so that the fault is not convenient to be found and processed, and meanwhile, the motor is easy to generate heat, fatigue and burn a motor coil or a motor gear.
Disclosure of Invention
The invention aims to solve the technical problem that aiming at the defects of the prior art, the invention provides a mahjong machine fault analysis and alarm method, which overcomes the defect that the motor control circuit fault or the sensor feedback circuit fault cannot be distinguished after the motor control circuit fault of the prior mahjong machine; when the sensor feedback circuit is determined to be in fault, whether the sensor feedback circuit is in open circuit fault or short circuit fault can be further determined. Meanwhile, the problem that whether the motor capacitor is in an open circuit fault or the mechanism is in a stuck fault cannot be quickly distinguished and prompted after the motor mechanism of the existing mahjong machine fails is solved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the mahjong machine motor control circuit comprises a mahjong machine control computer board, a power supply circuit, a motor control circuit and a sensor feedback circuit, and is characterized in that: a motor current detection circuit or device is added, after a motor control circuit of a corresponding fault mechanism breaks down, motors of other normal mechanisms stop working immediately, the motors of the fault mechanism are still controlled to continue working, the electrifying current of the motor circuit is measured, when a sensor which should not have a signal continuously has a feedback signal and the motor circuit does not have the electrifying current, the motor control circuit of the corresponding fault mechanism is judged to have an open-circuit fault, and a motor control circuit open-circuit fault code of the corresponding fault mechanism is reported; when the sensor without signal has feedback signal and the motor circuit has current, judging the sensor feedback circuit of the corresponding fault mechanism has short circuit fault, and reporting the short circuit fault code of the sensor feedback circuit of the corresponding fault mechanism; when the sensor which should have the signal does not continuously have a feedback signal and the motor circuit does not have the electrifying current, judging that the motor control circuit of the corresponding fault mechanism has an open-circuit fault, and reporting a motor control circuit open-circuit fault code of the corresponding fault mechanism; and when the sensor which should have the signal does not continuously have the feedback signal and the motor circuit has the electrifying current, judging that the corresponding sensor feedback circuit has an open-circuit fault, and reporting an open-circuit fault code of the corresponding sensor feedback circuit.
Whether the motor control circuit fault or the sensor feedback circuit fault exists can be rapidly distinguished through the existence of the measured motor current, and further, whether the motor capacitance open-circuit fault or the mechanism jamming fault exists can be rapidly distinguished through measuring the magnitude of the motor current. The invention also provides a mahjong machine analysis and alarm method, wherein the mahjong machine motor control circuit comprises a mahjong machine control computer board, a power supply circuit, a motor control circuit and a sensor feedback circuit, and is characterized in that: a motor current detection circuit or device is added, when a motor mechanism fault analysis detection program is started, motors of other normal mechanisms stop working, the motors of fault mechanisms to be detected are still controlled to continue working, the working current of the motor circuit is measured, when the actual working current of the motor is smaller than or equal to 90% of the standard working current of the motor, the motor capacitor circuit of the corresponding fault mechanism is judged to have an open-circuit fault, and a motor capacitor circuit open-circuit fault code of the corresponding fault mechanism is reported; when the actual working current of the motor is more than or equal to 105% of the standard working current of the motor, judging that the motor mechanism corresponding to the fault mechanism has a stuck fault, and reporting a motor mechanism stuck fault code corresponding to the fault mechanism; and when the actual working current of the motor is more than or equal to 90% of the standard working current of the motor and the actual working current of the motor is less than or equal to 105% of the standard working current of the motor, judging that the motor mechanism corresponding to the fault mechanism has no fault, and continuing the next procedure of the mahjong machine.
In order to realize the above technical scheme, the invention also provides a mahjong machine control circuit, which comprises a power supply circuit, a CPU control circuit, an operation panel interface circuit, a motor interface circuit and a sensor interface circuit, and is characterized in that: the mahjong machine control circuit also comprises a motor current detection circuit which is arranged between the power supply circuit and the motor interface circuit, and the measurement signal is connected with the CPU control circuit and is used for measuring the motor working current provided by the power supply circuit to the motor interface circuit.
In order to achieve the above technical solution, the present invention preferably further provides a mahjong machine control circuit, which includes a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor and motor circuit, a sensor and a sensor circuit, and is characterized in that: the mahjong machine control circuit further comprises a motor current detection device, the motor current detection device is installed between the mahjong machine transformer and the power supply circuit of the mahjong machine control computer board, and a measurement signal of the motor current detection device is connected with a current measurement interface of the mahjong machine control computer board and used for measuring the motor working current supplied to the power supply circuit of the mahjong machine control computer board by the mahjong machine transformer.
In order to achieve the above technical solution, the present invention preferably further provides a mahjong machine control circuit, which includes a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor and motor circuit, a sensor and a sensor circuit, and is characterized in that: the mahjong machine control circuit further comprises a motor current detection device, the motor current detection device is installed between the power plug of the mahjong machine and the transformer of the mahjong machine, and a measurement signal of the motor current detection device is connected with a current measurement interface circuit of the mahjong machine control computer board and used for measuring working current supplied to the mahjong machine by commercial power.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the defects that the motor control circuit fault or the sensor feedback circuit fault cannot be distinguished after the existing mahjong machine motor control system has a fault, and simultaneously distinguishes the sensor feedback circuit open-circuit fault or the sensor feedback circuit short-circuit fault, further solves the problems that the existing mahjong machine motor mechanism cannot quickly distinguish and prompt whether the motor capacitance open-circuit fault or the mechanism blocking fault exists after the existing mahjong machine motor mechanism has a fault, subdivides the fault codes of the mahjong machine, reduces the fault judgment and search range of the service staff, saves the fault judgment and search time of the service staff, greatly reduces the probability of the same fault for a plurality of times of home maintenance, and improves the user experience.
Drawings
FIG. 1 is a flow chart of a fault alarm in the ascending process of an original lifting motor control system;
FIG. 2 is a flow chart of a fault alarm in the ascending process of the elevator motor control system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a fault alarm for the conveyor motor mechanism according to an embodiment of the present invention;
FIG. 4 is a diagram of a computer board for controlling a mahjong machine according to an embodiment of the present invention;
FIG. 5 is a diagram of a control circuit of a mahjong machine according to an embodiment of the invention;
FIG. 6 is a diagram of a mahjong machine control circuit according to an embodiment of the invention.
Detailed Description
The working principle of the invention is as follows: the mahjong machine motor control circuit comprises a mahjong machine control computer board, a power supply circuit, a motor control circuit and a sensor feedback circuit, and is characterized in that: a motor current detection circuit or device is added, after a motor control circuit of a corresponding fault mechanism breaks down, motors of other normal mechanisms stop working immediately, the motors of the fault mechanism are still controlled to continue working, the electrifying current of the motor circuit is measured, when a sensor which should not have a signal continuously has a feedback signal and the motor circuit does not have the electrifying current, the motor control circuit of the corresponding fault mechanism is judged to have an open-circuit fault, and a motor control circuit open-circuit fault code of the corresponding fault mechanism is reported; when the sensor without signal has feedback signal and the motor circuit has current, judging the sensor feedback circuit of the corresponding fault mechanism has short circuit fault, and reporting the short circuit fault code of the sensor feedback circuit of the corresponding fault mechanism; when the sensor which should have the signal does not continuously have a feedback signal and the motor circuit does not have the electrifying current, judging that the motor control circuit of the corresponding fault mechanism has an open-circuit fault, and reporting a motor control circuit open-circuit fault code of the corresponding fault mechanism; and when the sensor which should have the signal does not continuously have the feedback signal and the motor circuit has the electrifying current, judging that the sensor feedback circuit of the corresponding fault mechanism has open-circuit fault, and reporting the open-circuit fault code of the sensor feedback circuit of the corresponding fault mechanism.
Further, mahjong machine motor control circuit includes mahjong machine control computer board, power supply circuit, motor control circuit and sensor feedback circuit, characterized by: a motor current detection circuit or device is added, when a motor mechanism fault analysis detection program is started, motors of other normal mechanisms stop working, the motors of fault mechanisms to be detected are still controlled to continue working, the working current of the motor circuit is measured, when the actual working current of the motor is smaller than or equal to 90% of the standard working current of the motor, the motor capacitor circuit of the corresponding fault mechanism is judged to have an open-circuit fault, and a motor capacitor circuit open-circuit fault code of the corresponding fault mechanism is reported; when the actual working current of the motor is more than or equal to 105% of the standard working current of the motor, judging that the motor mechanism corresponding to the fault mechanism has a stuck fault, and reporting a motor mechanism stuck fault code corresponding to the fault mechanism; and when the actual working current of the motor is more than or equal to 90% of the standard working current of the motor and the actual working current of the motor is less than or equal to 105% of the standard working current of the motor, judging that the motor mechanism corresponding to the fault mechanism has no fault, and continuing the next procedure of the mahjong machine.
The first embodiment is as follows: a lifting motor control circuit failure alarm method, the alarm flow is shown in figure 2, the mahjong machine lifting motor control circuit includes mahjong machine control computer board, power supply circuit, lifting motor control circuit and lifting sensor feedback circuit, increase the detection circuit of the motor current, the current approaches to 0 when the measured motor does not work, the working current is between 100 mA-600 mA because of different motor power when the motor works, it is the circuit voltage turnover value to get the current more than 50mA, namely there is the current of energizing in the motor circuit, otherwise regard as the motor circuit as there is no current of energizing, can judge whether there is current of energizing in the motor control circuit through the signal of the voltage turnover; when the lifting motor control circuit has a fault, immediately stopping the motors of other normal mechanisms from working, controlling the lifting motor to continue working as before, measuring whether the lifting motor circuit has an electrifying current, judging that the lifting motor control circuit has an open-circuit fault when a lower induction head which should have no signal continuously has a feedback signal and does not have the motor electrifying current, and reporting a lifting motor control circuit open-circuit fault code K8; when the lower induction head without the signal continuously has the feedback signal and the motor electrifying current exists, judging that the feedback circuit of the lower induction head has short-circuit fault, and reporting a lifting sensor feedback circuit short-circuit fault code D8; when the upper induction head which should have the signal continuously has no feedback signal and no motor electrifying current, judging that the lifting motor control circuit has an open-circuit fault, and reporting a lifting motor control circuit open-circuit fault code K8; and when the upper induction head which should have a signal continuously has no feedback signal and has motor electrifying current, judging that the feedback circuit of the upper induction head has an open circuit fault, and reporting an open circuit fault code A8 of the feedback circuit of the lifting sensor.
Example two: a delivery motor mechanism failure alarm method, the alarm process is shown in figure 3, the delivery motor control circuit of the mahjong machine includes the control computer board of the mahjong machine, supply circuit and delivery motor control circuit, increase the detection circuit of the electric current of the electrical machinery, the current is 280mA + -3 when the measured delivery motor and other mechanism synchronous machine work normally, (can be adjusted according to the power of the electrical machinery, can design all synchronous machines on the mahjong machine for the same power, the unified test standard of the software is convenient for), the electric current is 200mA + -3 after the capacitor of the delivery motor opens a way, (according to the synchronous adjustment of the power of the electrical machinery) the electric current of the electrical machinery after the capacitor circuit opens a way is 71% of the electric current when working normally, set the standard working current of the electrical machinery as 280mA, monitor the control electric current as 90% of the; x is set to be 10, namely (100-10)%; when the conveying mechanism is blocked, the current of the conveying motor is 350mA +/-3, the current of the motor is 125% of the current in normal work, the standard working current of the motor is set to be 280mA, and the monitoring control current is 105% of the standard working current, namely 294 mA; y is set to be 5, namely (100+ 5)%; (X and Y usually have a value range of 5-50) when other monitoring programs find that a control circuit of a certain conveying motor possibly has a fault, immediately stopping the motors of other normal mechanisms from working, controlling the conveying motor to continue working still, measuring the working current of the circuit of the conveying motor, judging that the motor capacitor circuit of the corresponding conveying mechanism has an open circuit fault when the actual working current of the motor is less than or equal to (100-10)% of the standard working current of the motor, namely 252mA, and reporting a motor capacitor circuit open circuit fault code D1 of the corresponding conveying mechanism; when the actual working current of the motor is greater than or equal to (100+ 5)% of the standard working current of the motor, namely 294mA, the motor mechanism corresponding to the conveying mechanism is judged to have a jamming fault, and a motor mechanism jamming fault code D2 corresponding to the conveying mechanism is reported; and when the actual working current of the motor is more than or equal to (100-10)% of the standard working current of the motor, namely 252mA, and the actual working current of the motor is less than or equal to (100+ 5)% of the standard working current of the motor, namely 294mA, judging that the motor mechanism corresponding to the conveying mechanism has no fault, and continuing the next program of the mahjong machine.
Example three: in order to realize the technical scheme, the invention also provides a mahjong machine control computer board, which is shown in figure 4 and comprises a power supply circuit, a CPU control circuit, an operation panel interface circuit, a motor interface circuit and a sensor interface circuit, wherein the power supply circuit outputs 5V voltage for the CPU control circuit, the operation panel interface circuit and the sensor interface circuit, and outputs 110V voltage for the motor interface circuit; the CPU controls the opening and closing of the motor interface circuit, the external motor is in a running and stopping state, the external motor is positioned between the 110V power supply circuit and the motor interface circuit by adding the motor current detection circuit, the measurement signal is connected with the CPU control circuit, the current signal value is converted into a voltage turnover value to be connected to an I/O port of the single chip microcomputer, and the voltage turnover value is used for measuring the motor working current provided by the power supply circuit to the motor interface circuit.
Example four: in order to realize the technical scheme, the invention also preferably provides a mahjong machine control circuit, as shown in figure 5, the mahjong machine control circuit comprises a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor circuit, a sensor and a sensor circuit, wherein the external 220V voltage is connected to the inlet wire of the mahjong machine transformer through the switch fuse circuit, the transformer outputs 12V voltage and is stabilized to 5V voltage through a computer board power supply circuit for the CPU control circuit, the operation panel interface circuit and the sensor interface circuit to use, the transformer outputs 110V voltage and is connected to the motor interface circuit through the computer board power supply circuit interface, a detection mutual inductor is arranged between the transformer and the computer board power supply circuit interface by adding a motor current detection device, a measurement signal is connected with the computer board measurement interface circuit, is used for measuring the working current of the motor which is supplied to the mahjong machine control computer board by the transformer of the mahjong machine.
Example five: in order to realize the technical scheme, the invention also preferably provides a mahjong machine control circuit, as shown in figure six, the mahjong machine control circuit comprises a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor and motor circuit, a sensor and a sensor circuit, wherein the external 220V voltage is connected to the inlet wire of the mahjong machine transformer through the switch fuse circuit, the transformer outputs 12V voltage which is stabilized to 5V voltage through a computer board power supply circuit for the CPU control circuit, the operation panel interface circuit and the sensor interface circuit to use, the transformer outputs 110V voltage which is connected to the motor interface circuit through the computer board power supply circuit interface, the detection mutual inductor is arranged between the mains supply plug and the transformer by adding the motor current detection device, and the measurement signal is connected with the computer board measurement interface circuit and used for measuring the working current supplied by the mains supply to the mahjong machine.
Claims (5)
1. A mahjong machine fault analysis and alarm method is characterized in that a mahjong machine motor control circuit comprises a mahjong machine control computer board, a power supply circuit, a motor control circuit and a sensor feedback circuit, and the method comprises the following steps: a motor current detection circuit or device is added, after a corresponding motor control circuit of a fault mechanism breaks down, the motors of other normal mechanisms stop working immediately, the motors of the fault mechanism are still controlled to continue working, the electrifying current of the motor circuit is measured, when a sensor which should not have a signal continuously has a feedback signal and the motor circuit does not have the electrifying current, the motor control circuit of the corresponding fault mechanism is judged to have an open-circuit fault, and the open-circuit fault code of the motor control circuit of the corresponding fault mechanism is reported; when the sensor without signal has feedback signal and the motor circuit has current, judging the sensor feedback circuit of the corresponding fault mechanism has short circuit fault, and reporting the short circuit fault code of the sensor feedback circuit of the corresponding fault mechanism; when the sensor which should have the signal does not continuously have a feedback signal and the motor circuit does not have the electrifying current, judging that the motor control circuit of the corresponding fault mechanism has an open-circuit fault, and reporting a motor control circuit open-circuit fault code of the corresponding fault mechanism; and when the sensor which should have the signal does not continuously have the feedback signal and the motor circuit has the electrifying current, judging that the corresponding sensor feedback circuit has an open-circuit fault, and reporting an open-circuit fault code of the corresponding sensor feedback circuit.
2. The mahjong machine fault analysis and alarm method according to claim 1, wherein the fault analysis and alarm method comprises the following steps: when the working current of the motor circuit is measured, when the actual working current of the motor is less than or equal to 90% of the standard working current of the motor, the open-circuit fault of the corresponding motor capacitor circuit is judged, and a corresponding motor capacitor circuit open-circuit fault code is reported; when the actual working current of the motor is more than or equal to 105% of the standard working current of the motor, judging that a corresponding motor mechanism has a jamming fault, and reporting a jamming fault code of the corresponding motor mechanism; and when the actual working current of the motor is more than 90% of the standard working current of the motor and the actual working current of the motor is less than 105% of the standard working current of the motor, judging that the corresponding motor mechanism has no fault, and continuing the next procedure of the mahjong machine.
3. A mahjong machine control circuit for realizing the mahjong machine fault analysis and alarm method of claim 1 or 2, the mahjong machine control circuit comprises a power supply circuit, a CPU control circuit, an operation panel interface circuit, a motor interface circuit and a sensor interface circuit, and is characterized in that: the mahjong machine control circuit also comprises a motor current detection circuit which is arranged between the power supply circuit and the motor interface circuit, and the measurement signal is connected with the CPU control circuit and is used for measuring the motor working current provided by the power supply circuit to the motor interface circuit.
4. A mahjong machine control circuit for realizing the mahjong machine fault analysis and alarm method of claim 1 or 2, the mahjong machine control circuit comprises a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor and motor circuit, a sensor and a sensor circuit, and is characterized in that: the mahjong machine control circuit further comprises a motor current detection device, the motor current detection device is installed between the mahjong machine transformer and the power supply circuit of the mahjong machine control computer board, and a measurement signal of the motor current detection device is connected with a current measurement interface of the mahjong machine control computer board and used for measuring the motor working current supplied to the power supply circuit of the mahjong machine control computer board by the mahjong machine transformer.
5. A mahjong machine control circuit for realizing the mahjong machine fault analysis and alarm method of claim 1 or 2, the mahjong machine control circuit comprises a 220V switch fuse circuit, a mahjong machine transformer, a mahjong machine control computer board, a mahjong machine operation panel, a motor and motor circuit, a sensor and a sensor circuit, and is characterized in that: the mahjong machine control circuit further comprises a motor current detection device, the motor current detection device is installed between the power plug of the mahjong machine and the transformer of the mahjong machine, and a measurement signal of the motor current detection device is connected with a current measurement interface of the mahjong machine control computer board and used for measuring working current supplied to the mahjong machine by commercial power.
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| US5754450A (en) * | 1993-09-06 | 1998-05-19 | Diagnostics Temed Ltd. | Detection of faults in the working of electric motor driven equipment |
| CN201164721Y (en) * | 2008-01-15 | 2008-12-17 | 浙江宣和电器有限公司 | Pushing-lifting mechanism of automatic mahjong-playing machine |
| CN202700049U (en) * | 2012-07-20 | 2013-01-30 | 杭州国友机电有限公司 | Mahjong tile sucking and conveying mechanism for mahjong machine |
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