JP2006107240A - Control apparatus having fault component specifying function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control apparatus for specifying a failure component when equipment operation is abnormal. <P>SOLUTION: The control apparatus comprises: sensors 3 and 4 for fetching information from outside; an actuator 5 for transmitting physical operation outside; and a control unit 2 for controlling the actuator in accordance with signals from the sensors 3 and 4. The control unit 2 automatically decides which component is faulty when the signals are different from each other from the sensors 3 and 4. Thus, fault diagnosis, quickness and accuracy of the failure correction are improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control device that automatically determines a failed part.

    Conventionally, this type of faulty part has been identified while a service person visits the site to check the operation of the equipment.

  In addition, displaying in which state a device has failed is becoming common in home appliances and the like. In recent years, in order to improve the accuracy of identifying faulty parts by service personnel, the use of fault diagnosis devices has begun (see, for example, Patent Document 1).

In addition, device failure information is sent to a service center to cope with expeditious failure repair (for example, Patent Document 2).
JP-A-11-118251 JP 2003-303244 A

  However, in the conventional configuration, when a device fails, it is possible to estimate a rough part from information on in which state the failure has occurred, but it is not possible to specify which component has failed. Therefore, all the related parts must be prepared at the time of repairing the failure, and the task of finding the failed part on site must be performed.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a control device that identifies which component has failed when the device operation is abnormal.

  In order to solve the above-described conventional problems, the control device of the present invention is configured to be able to specify a failure part up to the component level when the device is in an abnormal state.

  As a result, at the time of failure repair, only the specified parts need be prepared, and the efficiency and accuracy of repair are greatly improved.

  The control device of the present invention can specify a failure part up to the component level when the device is in an abnormal state, and can greatly improve the efficiency and accuracy at the time of failure repair.

  A first invention includes a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator in accordance with a signal from the sensor, and a signal from the sensor When an abnormality occurs, the control unit automatically determines which part is faulty, whereby the faulty part can be identified.

  A second invention includes a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator in accordance with a signal from the sensor, and a signal from the sensor If the controller becomes abnormal, the control unit automatically determines which component has failed, and verifies that the determination result is correct, whereby the failed component can be identified more accurately.

  A third invention includes a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator in accordance with a signal from the sensor, and drives the actuator When the response signal corresponding to the signal becomes abnormal, the control unit automatically determines which component is faulty, whereby the faulty component can be specified.

  A fourth invention includes a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator in accordance with a signal from the sensor, and drives the actuator When the response signal according to the signal becomes abnormal, the control unit automatically determines which component is faulty, and by verifying that the determination result is correct, the faulty component can be identified more accurately. can do.

  5th invention is equipped with the sensor which takes in the information from the outside, the actuator which transmits a physical operation | movement to the exterior, and the control part which controls the said actuator according to the signal from the said sensor, Operation | movement of apparatus is abnormal When this happens, the control unit automatically determines which part has failed, and notifies the determination result by the actuator, so that the specified result of the failed part can be accurately notified.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 shows a block diagram of a control device having a faulty part specifying function in an embodiment of the present invention.

  Reference numeral 1 denotes a power source of the device, 2 denotes a control unit, 3 and 4 denote an A sensor and a B sensor, and the control unit 2 can monitor a voltage state at an intermediate position between the A sensor 3 and the B sensor 4. Reference numeral 5 denotes an actuator, 6 denotes an operation detection unit that transmits the operation state of the actuator 5 to the control unit 2, and 7 denotes a drive unit that drives the actuator.

  About the control apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, it is assumed here that the A sensor 3 and the B sensor 4 are temperature switches, hold the ON state in the normal state, and turn OFF when the abnormality occurs. In a normal state, the drive unit 7 is operated by a signal from the control unit 2, and power is supplied to the actuator 5 to operate the device. Next, for example, when an abnormality occurs in the portion of the B sensor 4 and the B sensor 4 is turned off, the operation is stopped as the device because the actuator 5 is not supplied with power.

  In the case of an old control device, since the actuator 5 cannot be operated when it should be operated, the display shows “abnormal operation of the actuator 5” and the process is terminated. In other words, it is necessary to prepare almost all components such as the A sensor and the components related to the abnormality detection of the A sensor, the components related to the abnormality detection of the B sensor and the B sensor, the actuator, the drive unit, and the control unit.

  According to this configuration, when the B sensor 4 is turned off, the voltage is applied by monitoring the voltage state at the intermediate position between the A sensor 3 and the B sensor 4 performed by the control unit 2. It can be seen that 3 is normal.

  Next, by monitoring the voltage state at the intermediate position between the B sensor 4 and the actuator 5, it can be seen that a failure has occurred in the B sensor 4 or a part related to abnormality detection of the B sensor because no voltage is applied.

  Next, after a lapse of time, when the B sensor 4 should return to normal if the B sensor 4 is normal, the voltage at the intermediate position between the B sensor 4 and the actuator 5 is checked again, and if the voltage is applied, the B sensor It can be seen that this is a failure of a component related to the abnormality detection, and if no voltage is applied, it can be seen that the B sensor 4 itself has failed. If the B sensor 4 has not failed, the actuator 5 will fail if no voltage is applied by monitoring the voltage state at an intermediate position between the drive unit 7 and the operation detection unit 6 before operating the drive unit 7. Thus, the failure part can be identified by confirming the operation of the state and operation sequentially.

  In addition, once the failed part is identified and then verified again after a certain period of time, the failed part can be more accurately identified for a temperature-dependent part such as the temperature switch.

  Further, by displaying the identified failed part on the display actuator, it is possible to accurately convey the failed part to the user or service person.

  Also, the accuracy and speed of failure repair can be improved by displaying the failed part on the display actuator only when the service person performs a special operation. Furthermore, remote location confirmation and remote operation confirmation of information can be performed via the Internet or an actuator that can be connected to a telephone line.

  Here, a simple circuit is used for the sake of simplification of explanation, but the same treatment judgment can be made even if the type or configuration of the sensor / actuator changes or the quantity increases.

  As described above, the present embodiment includes a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator in accordance with a signal from the sensor. When the signal from the sensor or actuator becomes abnormal, the control unit automatically determines which part is faulty and verifies that the judgment result is correct, thereby correctly identifying the faulty part. Therefore, failure diagnosis and failure repair can be performed quickly and accurately.

  As described above, the control device according to the present invention can identify a failed part when a device fails, and can perform failure diagnosis and repair at the time of failure quickly and accurately. It can also be applied to uses such as factory management systems.

The block diagram which shows the control apparatus of Embodiment 1 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power supply 2 Control part 3 A sensor 4 B sensor 5 Actuator 6 Operation | movement detection part 7 Drive part

Claims (5)

When a signal from the sensor becomes abnormal, including a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator according to a signal from the sensor And a control device having a faulty component specifying function, wherein the control unit automatically determines which component is faulty. When a signal from the sensor becomes abnormal, including a sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator according to a signal from the sensor In addition, a control device having a faulty component specifying function, wherein the control unit automatically determines which component is faulty and verifies that the determination result is correct. A response signal according to a drive signal to the actuator, comprising: a sensor that captures information from the outside; an actuator that transmits a physical operation to the outside; and a control unit that controls the actuator according to a signal from the sensor. A control device having a faulty component identification function, wherein the control unit automatically determines which component is faulty when a fault occurs. A response signal according to a drive signal to the actuator, comprising: a sensor that captures information from the outside; an actuator that transmits a physical operation to the outside; and a control unit that controls the actuator according to a signal from the sensor. A control device having a faulty component identification function, in which when the controller becomes abnormal, the control unit automatically determines which component is faulty and verifies that the determination result is correct. A sensor that captures information from the outside, an actuator that transmits a physical operation to the outside, and a control unit that controls the actuator according to a signal from the sensor, when the operation of the device becomes abnormal, A control device having a faulty component specifying function, wherein the control unit automatically determines which component is faulty and notifies the determination result by the actuator.

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