JP6809833B2 - Abnormal situation recording device - Google Patents

Description

The present invention relates to an abnormality status recording device that records the state of an apparatus at the time of occurrence of an abnormality when an abnormality occurs in the apparatus.

Conventionally, when an error occurs in the main body of the device, information data consisting of an error flag indicating the content of the error, the time when the error occurred, the state of the device at the time of the error, etc. is stored in the storage unit (memory backed up by the power supply). An information recording / reproducing device has been proposed in which writing of information data to a storage unit is prohibited after a fatal error occurs. (For example, see Patent Document 1). ..

Japanese Unexamined Patent Publication No. 5-298835

According to the information recording / reproducing device described in Patent Document 1, the capacity of the storage unit is suppressed by overwriting the error information and writing it in the storage unit for a minor device abnormality. Further, when a predetermined fatal error occurs, the writing of the information data to the storage unit after that is prohibited, so that the information data when the fatal error occurs is prevented from being lost. ..

However, in addition to the preset fatal errors, it may be necessary to analyze the model-specific abnormalities that have been confirmed to occur after the device is released.

The present invention has been made in view of the above background, and an object of the present invention is to provide an abnormality situation recording device capable of expanding the target of abnormality analysis while suppressing the capacity of the storage unit.

The abnormality situation recording device of the present invention
Anomaly detector that distinguishes and detects multiple types of anomalies that occur in the target device,
An abnormality status recording device including a storage unit that stores at least abnormality status data indicating the type of abnormality detected by the abnormality detection unit and the state of the target device at the time of abnormality detection.
Specifying any of the plurality of types of abnormalities to be set as a specific abnormality by a special operation of the setting switch or an operation of a communication terminal capable of communicating with the target device after the start of use of the target device. Abnormal setting part and
When an abnormality is detected by the abnormality detection unit, if the detected abnormality is the specific abnormality, the abnormality status data regarding the detected abnormality is stored in the storage unit, and the subsequent abnormality is described. When the overwrite-prohibited state in which writing of the new abnormal status data to the storage unit is prohibited and the detected abnormality is other than the specific abnormality and is not the overwrite-prohibited state, the abnormal status of the detected abnormality is obtained. It is characterized by including a data writing processing unit for writing data to the storage unit.

According to the present invention, the maintenance worker or the like of the target device can perform a special operation of the setting switch by the specific abnormality setting unit for the type of abnormality to be analyzed for the abnormality even after the target device is released. It can be set as a specific abnormality by being operated or by operating a communication terminal capable of communicating with the target device . This ensures that when a specific abnormality occurs, the data writing unit, after the abnormal situation data for a particular abnormality has been written in the storage unit, becomes overwrite protection state, the target device when a particular abnormality has occurred Abnormal status data indicating the status of is held in the storage unit. Therefore, the maintenance worker or the like can easily perform the abnormality analysis by setting a wide range of types of the abnormality to be analyzed. Further, when a minor abnormality other than the specific abnormality occurs, the abnormality status data is overwritten in the storage unit, so that the capacity of the storage unit can be suppressed.

Further, when the overwrite prohibition state is released and an abnormality is detected by the abnormality detection unit, the data writing processing unit writes the abnormality status data regarding the detected abnormality to the storage unit. It is characterized by having an overwrite prohibition release unit for returning to.

According to this configuration, after repairing the failure of the target device due to the specific abnormality, the overwrite prohibition release unit cancels the overwrite prohibition state, so that it is possible to prepare for the abnormality analysis when the specific abnormality occurs next time.

The block diagram of the gas stove equipped with the abnormality situation recording apparatus of this invention. The control block diagram of the gas stove shown in FIG. Error code setting table. Explanatory drawing of overwrite prohibition setting table. Explanatory diagram of abnormal situation data. The first flowchart of the writing process of abnormal situation data. The second flowchart of the writing process of the abnormal situation data.

An embodiment of the present invention will be described with reference to FIGS. 1 to 5.

[1. Composition of gas stove]
With reference to FIG. 1, the gas stove 1 of the present embodiment includes three stoves (left stove 4, rear stove 6, right stove 5) exposed from the top plate 3 covering the upper surface of the stove body 2. The burner on the left stove 4 is the H burner with the highest maximum firepower, the burner on the rear stove 6 is the S burner with the smallest maximum firepower, and the burner on the right stove 5 is the burner with the smallest maximum firepower and is smaller than the S burner. It is a large M burner. Further, inside the stove body 2, a grill 7 having a G burner (not shown) is provided.

An ignition / fire extinguishing switch 8 for an H burner is provided on the front surface of the stove body 2 for igniting / extinguishing the left stove 4 and adjusting the thermal power by pushing and rotating. Similarly, the ignition fire extinguishing switch 9 for the M burner for operating the right stove 5, the ignition fire extinguishing switch 10 for the S burner for operating the rear stove 6, and the ignition fire extinguishing switch 11 for the G burner for operating the grill 7. Is provided.

Further, openable and closable front panels 12 and 13 are provided at positions below the ignition and fire extinguishing switches 8, 9, 10 and 11 on the front surface of the stove body 2. When the front panel 12 is opened, the operation panel 20 for the stove appears. The stove operation panel 20 is provided with a stove display unit 21 for setting the cooking mode of the stove (left stove 4, rear stove 6, right stove 5) and a stove setting switch 22.

Further, when the front panel 13 is opened, the grill operation panel 30 appears. The grill operation panel 30 is provided with a grill display 31 and a grill setting switch 32 for setting the cooking mode of the grill 7.

Next, with reference to FIG. 2, the gas stove 1 is provided with a controller 50 that controls the overall operation of the gas stove 1. The controller 50 is an electronic circuit unit composed of a CPU, a memory, various interface circuits, etc. (not shown), and the combustion control unit 51, abnormality detection, is performed by executing the control program of the gas controller 1 held in the memory on the CPU. It functions as a unit 52, a specific abnormality setting unit 53, a data writing processing unit 54, and an overwrite prohibition canceling unit 55.

The combustion control unit 51 controls the combustion operation of each burner (H burner, M burner, S burner, G burner). The abnormality detection unit 52 detects an abnormality that occurs in each burner. The specific abnormality setting unit 53 is a special operation of the stove setting switch 22 and the grill setting switch 32 by a maintenance worker or the like of the gas stove 1 (operation different from normal switch operation by the user, long press operation, multiple switches. Set a specific abnormality to be described later according to (simultaneous operation, etc.).

For example, when setting a specific abnormality of the H burner, a maintenance worker or the like displays a screen for setting a specific abnormality (an error code is displayed) on the stove display unit 21 by a special operation of the stove setting switch 22. Then, the UP / DOWN switch (not shown) of the stove setting switch 22 is operated to select an error code to be set as a specific abnormality. Then, the maintenance worker or the like completes the setting of the specific abnormality by performing a predetermined confirmation operation with the setting switch 22 for the stove.

The data writing processing unit 54 stores the abnormality status data indicating the type of abnormality of each burner detected by the abnormality detection unit 52 at the time of abnormality occurrence and the state of the gas stove 1 (burner state, etc.) at the time of abnormality occurrence in the memory 60 ( Write to the storage unit of the present invention). The memory 60 is a non-volatile memory (for example, EEPROM).

Although details will be described later, the memory 60 includes an error code table 61 indicating an error code assigned to each burner type of abnormality, a specific abnormality setting table 62 indicating a specific abnormality set for each burner, and each of them. Data such as the abnormality status data recording table 63 that holds the abnormality status data of the burner is held.

The controller 50 includes an ignition fire extinguishing switch 9 for an M burner, an ignition fire extinguishing switch 8 for an H burner, an ignition fire extinguishing switch 10 for an S burner, an ignition fire extinguishing switch 11 for a G burner, a setting switch 22 for a stove, and a setting switch 32 for a grill. The operation signal is input. Further, the detection signals by the M burner sensor 70 (the same applies to other burners such as the pot-mounted detection sensor, the temperature sensor, and the thermocouple), the H burner sensor 71, the S burner sensor 72, and the G burner sensor 73. Is entered.

Further, according to the control signal output from the controller 50, the actuator 80 for the M burner (the same applies to other burners such as a gas source valve that switches between fuel gas supply and shutoff, and a flow rate change valve that changes the fuel gas supply flow rate). , Actuator 81 for H burner, Actuator 82 for S burner, Actuator 83 for G burner, Ignition igniter 84 that applies a drive voltage to the ignition electrode of each burner, Display unit 21 for stove, and Display unit 31 for grill are controlled. Will be done.

The controller 50 has a function of performing wired or wireless communication with a communication terminal 90 such as a personal computer. The maintenance worker or the like can read the abnormality status data of each burner held in the memory 60 by the communication terminal 90 and recognize the status of the gas stove 1 when the abnormality occurs.

Further, the controller 50 is in an abnormal state when a maintenance worker or the like performs a special operation of the setting switch 22 for the stove (an operation different from the operation during normal operation such as long press, simultaneous operation of a plurality of switches). The contents of the abnormality status data of each stove burner (H, M, S burner) held in the data recording table 63 are displayed on the stove display unit 21. The maintenance worker or the like can also confirm the contents of the abnormality status data of each stove burner by this operation.

Similarly, the controller 50 is abnormal when a maintenance worker or the like performs a special operation of the grill setting switch 32 (an operation different from the operation during normal operation such as long pressing, simultaneous operation of a plurality of switches, etc.). The contents of the abnormal status data of the G burner held in the status data recording table 63 are displayed on the grill display unit 31. The maintenance worker or the like can also confirm the contents of the abnormal status data of the grill burner by this operation.

The configuration 40 including the abnormality detection unit 52, the specific abnormality setting unit 53, the data writing processing unit 54, the overwrite prohibition canceling unit 55, and the memory 60 provided in the controller 50 corresponds to the abnormality status recording device of the present invention.

[2. Data held in memory]
Next, with reference to FIGS. 3A to 3C, an error code table 61 showing error codes assigned to each of a plurality of types of abnormalities detected by the abnormality detection unit 52, and a specific abnormality set by the specific abnormality setting unit 53. The specific abnormality setting table 62 in which the error code of the above is written, and the abnormality status data recording table 63 in which the abnormality status data of each burner is written by the data writing processing unit 54 will be described.

With reference to FIG. 3A, the abnormality detection unit 52 detects a plurality of types of abnormalities (ignition error, midway misfire error, high cut (overheating abnormal stop) error, etc.) of each burner (M, H, S, G burner). Detect according to the error code table. The error code table 61 assigns an error code and a detection condition to each abnormality. For example, an error code of "01" is assigned to an "ignition error" abnormality, and it is set as a detection condition that the electromotive force of the thermocouple does not exceed the ignition judgment level even if the ignition electrode is operated for a predetermined time or longer. Has been done.

Next, as shown in FIG. 3B, the specific abnormality setting unit 53 sets an error code indicating the type of the specific abnormality set by the maintenance worker or the like in the specific abnormality setting table 62 for each burner. In the example of FIG. 3B, the error code “01” of the ignition error is set as a specific abnormality for the M burner.

Next, when the abnormality is detected by the abnormality detection unit 52, the data writing processing unit 54 outputs an error code indicating the type of the detected abnormality and an abnormality status data indicating the state of the gas stove 1 at the time of the abnormality. Write for each burner. In the example of FIG. 3C, when an ignition abnormality of the M burner is detected, the ignition abnormality error code "01" and the operating state of the gas stove 1 at the time of the abnormality (thermistor detection temperature, thermocouple voltage, variable valve position, etc.) ) Is written to the memory.

[3. Abnormal status data writing process]
Next, according to the flowcharts shown in FIGS. 4 to 5, the process of writing the abnormal status data to the memory 60 and prohibiting overwriting by the data writing processing unit 54 will be described.

According to STEP1 to STEP4 of FIG. 4, the data writing processing unit 54 permits overwriting (updating) the abnormal status data recording table 63 of the abnormal status data of each burner (overwriting permission state).

Subsequent STEPs 5 to 9 are processing for writing and overwriting prohibition of abnormal status data of the M burner. The data writing processing unit 54 determines in STEP 5 whether or not an abnormality in the M burner is detected by the abnormality detecting unit 52. Then, when an abnormality of the M burner is detected, the process proceeds to STEP 6, and when an abnormality of the M burner is not detected, the process proceeds to STEP 20.

In STEP 6, the data writing processing unit 54 determines whether or not overwriting of the abnormality detection data of the M burner is permitted. Then, when overwriting is permitted, the process proceeds to STEP 7, and when overwriting is prohibited, the process proceeds to STEP 20.

In STEP 7, the data writing processing unit 54 writes the error code corresponding to the detected abnormality of the M burner and the abnormality status data indicating the state of the gas stove 1 at the time of the abnormality to the abnormality status data recording table 63 of the memory 60. In the following STEP 8, the data writing processing unit 54 determines whether or not the detected abnormality of the M burner is a specific abnormality. Then, when the detected abnormality of the M burner is a specific abnormality, the process proceeds to STEP 9, and when the detected abnormality of the M burner is not a specific abnormality, the process proceeds to STEP 20.

In STEP 9, the data writing processing unit 54 prohibits overwriting of the abnormal status data of the M burner on the abnormal status data recording table (overwrite prohibited state), and proceeds to STEP 5. When a specific abnormality occurs due to the processing of STEP 9, the subsequent writing (overwriting) of the abnormality handling data to the abnormality status data recording table 63 is prohibited, and the abnormality when the specific abnormality occurs in the abnormality status data recording table 63. The state in which the status data is retained is maintained.

Next, STEP20 to STEP24 in FIG. 4 are processing for writing the abnormal status data of the H burner. The data writing processing unit 54 determines in STEP 20 whether or not an abnormality in the H burner is detected by the abnormality detecting unit 52. Then, when the abnormality of the H burner is detected, the process proceeds to STEP21, and when the abnormality of the H burner is not detected, the process proceeds to STEP30 of FIG.

In STEP 21, the data writing processing unit 54 determines whether or not overwriting of the abnormality detection data of the H burner is permitted. Then, when overwriting is permitted, the process proceeds to STEP 22, and when overwriting is prohibited, the process proceeds to STEP 30 in FIG.

In STEP 22, the data writing processing unit 54 displays the error code corresponding to the detected abnormality type of the H burner and the abnormality status data indicating the state of the H burner at the time of the abnormality in the abnormality status data recording table 63 of the memory 60. Write to. In the following STEP 23, the data writing processing unit 54 determines whether or not the detected abnormality of the H burner is a specific abnormality. Then, when the detected abnormality of the H burner is a specific abnormality, the process proceeds to STEP 24, and when the detected abnormality of the H burner is not a specific abnormality, the process proceeds to STEP 30 of FIG.

In STEP 24, the data writing processing unit 54 prohibits overwriting of the abnormal status data of the H burner on the abnormal status data recording table 63 (overwrite prohibited state), and proceeds to STEP 5. When a specific abnormality occurs due to the processing of STEP24, the subsequent writing (overwriting) of the abnormality handling data to the abnormality status data recording table 63 is prohibited, and the abnormality when the specific abnormality occurs in the abnormality status data recording table 63. The state in which the status data is retained is maintained.

Next, STEP30 to STEP34 in FIG. 5 are processing for writing the abnormal status data of the S burner. The data writing processing unit 54 determines in STEP 30 whether or not an abnormality in the S burner is detected by the abnormality detecting unit 52. Then, when an abnormality of the S burner is detected, the process proceeds to STEP 31, and when an abnormality of the S burner is not detected, the process proceeds to STEP 40.

In STEP 31, the data writing processing unit 54 determines whether or not overwriting of the abnormality detection data of the S burner is permitted. Then, when overwriting is permitted, the process proceeds to STEP 32, and when overwriting is prohibited, the process proceeds to STEP 40.

In STEP 32, the data writing processing unit 54 converts the error code indicating the detected abnormality type of the S burner and the abnormality status data indicating the state of the S burner at the time of the abnormality in the abnormality status data recording table 63 of the memory 60. Write to. In the subsequent STEP 33, the data writing processing unit 54 determines whether or not the detected abnormality of the S burner is a specific abnormality. Then, when the detected S burner abnormality is a specific abnormality, the process proceeds to STEP34, and when the detected S burner abnormality is not a specific abnormality, the process proceeds to STEP40.

In STEP 34, the data writing processing unit 54 prohibits overwriting of the abnormal status data of the S burner on the abnormal status data recording table (overwrite prohibited state), and proceeds to STEP 5 of FIG. When a specific abnormality occurs due to the processing of STEP34, the subsequent writing (overwriting) of the abnormality handling data to the abnormality status data recording table 63 is prohibited, and the abnormality when the specific abnormality occurs in the abnormality status data recording table 63. The state in which the status data is retained is maintained.

Next, STEP40 to STEP44 in FIG. 5 are processing for writing the abnormal status data of the G burner. The data writing processing unit 54 determines in STEP 40 whether or not an abnormality in the G burner is detected by the abnormality detecting unit 52. Then, when an abnormality of the G burner is detected, the process proceeds to STEP 41, and when an abnormality of the G burner is not detected, the process proceeds to STEP 5 of FIG.

In STEP 41, the data writing processing unit 54 determines whether or not overwriting of the abnormality detection data of the G burner is permitted. Then, when overwriting is permitted, the process proceeds to STEP 42, and when overwriting is prohibited, the process proceeds to STEP 5 of FIG.

In STEP 42, the data writing processing unit 54 records the error code indicating the detected abnormality type of the G burner and the abnormality status data indicating the state of the G burner at the time of the abnormality in the abnormality status data recording table 63 of the memory 60. Write to. In the subsequent STEP 43, the data writing processing unit 54 determines whether or not the detected abnormality of the G burner is a specific abnormality. Then, when the detected G-burner abnormality is a specific abnormality, the process proceeds to STEP44, and when the detected G-burner abnormality is not a specific abnormality, the process proceeds to STEP5 in FIG.

In STEP 44, the data writing processing unit 54 prohibits overwriting of the abnormal status data of the G burner on the abnormal status data recording table (overwrite prohibited state), and proceeds to STEP 5 of FIG. When a specific abnormality occurs due to the processing of STEP44, the subsequent writing (overwriting) of the abnormality handling data to the abnormality status data recording table 63 is prohibited, and the abnormality when the specific abnormality occurs in the abnormality status data recording table 63. The state in which the status data is retained is maintained.

When the overwrite prohibition state is set in STEP9, STEP24, STEP34, and STEP44, the maintenance worker of the gas stove 1 can identify by checking the abnormality handling data of the specific abnormality held in the abnormality status data recording table 63. It is possible to analyze the state of each burner when an abnormality occurs and analyze the cause of the abnormality.

Further, by the processing of the specific abnormality setting unit 53 described above, the maintenance worker or the like can arbitrarily set the type of the abnormality to be the specific abnormality, and therefore, the factor depends on the occurrence situation of the abnormality of the gas stove 1 in the market. You can change the type of anomaly you want to analyze.

Further, when the overwrite prohibition state is not set, the abnormality handling data for the generated abnormality is overwritten in the abnormality status data recording table 63 every time a minor abnormality other than the specific abnormality is detected. As described above, the capacity of the memory 60 can be suppressed by overwriting the abnormality handling data for a minor abnormality. Then, the maintenance worker or the like of the gas stove 1 can confirm the abnormality handling data for the most recently occurring abnormality held in the abnormality status data recording table 63 and analyze the cause of the most recently occurring abnormality. ..

Further, when the overwrite prohibition state is set in STEP9, STEP24, STEP34, and STEP44, the maintenance worker or the like can use the special operation of the setting switch 22 for the stove for the H, M, and S burners, and the G burner. By a special operation of the grill setting switch 32, the overwrite prohibition state can be canceled by the process of the overwrite prohibition release unit 55.

[4. Other embodiments]
In the above embodiment, as shown in FIG. 3B, one specific abnormality of each burner (M, H, S, G burner) is set in the specific abnormality setting table 62 (one error code indicating the specific abnormality is set. Although the configuration (to write) is shown, a plurality of specific abnormalities may be set.

In the above embodiment, the specific abnormality is set by the special operation of the stove setting switch 22 and the grill setting switch 32, but the specific abnormality may be set by the operation of the communication terminal 90.

In the above embodiment, the configuration in which the abnormality status recording device 40 of the present invention is mounted on the gas stove 1 is illustrated, but the application of the present invention is not limited to this configuration, and the apparatus for detecting a plurality of types of abnormalities and when an abnormality occurs. If the device needs to record the state, the abnormal situation recording device of the present invention can be mounted to obtain the effect.

Further, in the above embodiment, an example is shown in which the overwrite prohibition canceling unit 55 for canceling the overwrite prohibition state of the abnormal status data is provided, but the effect of the present invention can be obtained even when the overwrite prohibition canceling unit 55 is not provided. Obtainable.

1 ... Gas stove, 21 ... Stove display unit, 22 ... Stove setting switch, 31 ... Grill display unit, 32 ... Grill setting switch, 50 ... Controller, 51 ... Combustion control unit, 52 ... Abnormality detection unit, 53 ... Specific abnormality setting unit, 54 ... Data writing processing unit, 55 ... Overwrite prohibition release unit, 60 ... Memory, 61 ... Error code table, 62 ... Specific abnormality setting table, 63 ... Abnormal situation data recording table.

Claims (2)

Anomaly detector that distinguishes and detects multiple types of anomalies that occur in the target device,
An abnormality status recording device including a storage unit that stores at least abnormality status data indicating the type of abnormality detected by the abnormality detection unit and the state of the target device at the time of abnormality detection.
Specifying any of the plurality of types of abnormalities to be set as a specific abnormality by a special operation of the setting switch or an operation of a communication terminal capable of communicating with the target device after the start of use of the target device. Abnormal setting part and
When an abnormality is detected by the abnormality detection unit, if the detected abnormality is the specific abnormality, the abnormality status data regarding the detected abnormality is stored in the storage unit, and the subsequent abnormality is described. When the overwrite-prohibited state in which writing of the new abnormal status data to the storage unit is prohibited and the detected abnormality is other than the specific abnormality and is not the overwrite-prohibited state, the abnormal status of the detected abnormality is obtained. An abnormality situation recording device including a data writing processing unit for writing data to the storage unit. In the abnormality status recording device according to claim 1,
When the overwrite prohibition state is released and an abnormality is detected by the abnormality detection unit, the data writing processing unit returns to a state in which the abnormality status data regarding the detected abnormality is written in the storage unit. An abnormality status recording device characterized by having an overwrite prohibition release unit.