JP2014114111A - Elevator with abnormality diagnosis function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator with abnormality diagnosis function capable of reducing affection of passengers during performing abnormality diagnosis during normal operation and reducing time required for diagnosis operation during periodical inspection time.SOLUTION: The elevator 100 comprises a sensor and an abnormality diagnosis function 20 for performing abnormality diagnosis of the elevator 100 based on a sensor signal S10 collected by the sensor. The abnormality diagnosis is performed when there is no person during normal operation. When abnormality and normality is detected in the sensor signal S10 in the abnormality diagnosis, diagnosis items in which abnormality was detected are diagnosed again during diagnosis operation of periodical inspection time.

Description

  The present invention relates to an elevator having an abnormality diagnosis function.

  Japanese Laid-Open Patent Publication No. 2009-220996 discloses an elevator automatic diagnosis apparatus. In the elevator automatic diagnosis apparatus disclosed in Patent Document 1, in order to perform diagnosis operation at an appropriate time according to the operation state of each device of the elevator and cope with it early, each device during normal operation output from the operation control unit Is recorded in the recording unit. The abnormality detection unit determines the possibility of abnormality based on the operation data of each device recorded in the recording unit, selects a diagnostic operation menu for verifying the cause of the abnormality from the menu list, and performs the diagnostic operation. Have the operation control unit perform diagnostic operation corresponding to the menu. Thus, it is described that a diagnostic operation can be performed at an appropriate time according to the operation state of each device of the elevator so that it can be dealt with early.

  Further, in Patent Document 2 (Japanese Patent Application Laid-Open No. 2011-195283), a location to be diagnosed is specified from the operation state of each device of the elevator, and a diagnostic operation menu suitable for the location is set according to the urgency of the menu. An elevator automatic diagnosis apparatus that efficiently detects an abnormal location by performing is described. Here, the operation data of each device during normal operation output from the operation control unit is recorded in the recording unit, and the abnormality detection unit detects the possibility of abnormality based on the operation data of each device recorded in this recording unit. In addition to determining, a diagnostic operation menu for verifying the cause of the abnormality is selected from the menu list, and the operation control unit is caused to perform a diagnostic operation corresponding to this diagnostic operation menu. The operation control unit is an automatic diagnosis device for an elevator that performs a diagnosis operation corresponding to the menu according to the urgency level of the diagnosis operation menu selected by the abnormality detection unit.

JP 2009-220996 A JP 2011-195283 A

  The Patent Document 1 describes a mechanism for performing a diagnostic operation at an appropriate time according to the operation state of each device of an elevator and dealing with it at an early stage. However, in the elevator of Patent Document 1, since the determination is made based on the operation data of the equipment during normal operation, the influence of passengers cannot be avoided, and it is considered that there are many false alarms. In addition, after the judgment based on the operation data of the device, the diagnostic operation is performed before the periodic inspection according to the priority according to the diagnostic menu, but the normal operation is also checked during the periodic inspection. This time is the same as the prior art.

  Further, in Patent Document 2, a location to be diagnosed is specified from the operation state of each device of the elevator, and a diagnostic operation menu suitable for the location is performed according to the urgency level of the menu, thereby identifying an abnormal location. A mechanism for efficient detection is described. However, since it judges with the operation data of the apparatus at the time of normal driving | operating similarly to patent document 1, the influence of a passenger etc. cannot be avoided and it is thought that there are many misinformation. Also, after judging from the operation data of the equipment, the normal operation is stopped according to the priority according to the diagnostic menu and the diagnostic operation is performed, but there is no mention of the diagnostic operation at the periodic inspection, and the diagnostic operation at the periodic inspection is not mentioned. Time is the same as the prior art.

As described above, with regard to the conventional automatic diagnosis apparatus for elevators, the influence of passengers is inevitable because the possibility of abnormality is judged from the operation data during normal operation, and the time for diagnostic operation during periodic inspection cannot be shortened. There was a problem.
Accordingly, an object of the present invention is to provide an elevator having an abnormality diagnosis function that can reduce the influence of passengers and the like when performing abnormality diagnosis during normal operation, and can reduce the time of diagnosis operation during regular inspection. It is in.

  Although the present invention can be grasped from a plurality of viewpoints, an elevator having the abnormality diagnosis function of the present invention captured from one viewpoint is as follows. Further, the elevator having the abnormality diagnosis function of the present invention viewed from other viewpoints will be clarified by the description of the embodiment for carrying out the invention described below.

  In order to solve the above-described problems, an elevator having an abnormality diagnosis function according to the present invention is a normal operation in an elevator having an abnormality diagnosis function for diagnosing an abnormality of an elevator from a sensor signal collected by the sensor by installing a sensor in the elevator. If there is a diagnostic item in which the sensor signal is abnormal in the abnormality diagnosis and a diagnostic item in which the sensor signal is normal in the abnormal diagnosis, the abnormality diagnosis is performed during the diagnostic operation during the periodic inspection. It is characterized in that at least a part of diagnosis of a diagnosis item whose signal is normal is omitted, and a diagnosis item whose sensor signal is abnormal in the abnormality diagnosis is re-diagnosed.

According to the present invention, since abnormality diagnosis is performed after detecting an unattended state during normal operation, the diagnostic accuracy can be improved. In addition, since the diagnosis items diagnosed as normal in the abnormality diagnosis are omitted during the diagnostic operation during the periodic inspection, the diagnostic operation time during the periodic inspection can be shortened.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a block diagram which shows the outline | summary of the elevator which has an abnormality diagnosis function by 1st Example of this invention. It is a table | surface which shows an example of the diagnostic item table of the elevator which has an abnormality diagnosis function by 1st Example of this invention. It is a flowchart which shows an example of a process of the elevator which has the abnormality diagnosis function by 1st Example of this invention. It is a schematic block diagram which shows an example of the elevator which has the abnormality diagnosis function concerning the 2nd Example of this invention. It is a schematic block diagram which shows an example of the elevator which has the abnormality diagnosis function concerning the 3rd Example of this invention. It is a schematic block diagram of the elevator regarding the elevator which has the abnormality diagnosis function of this invention.

  Embodiments of the present invention will be described below with reference to the drawings and the like. The following examples show specific examples of the contents of the present invention, and the present invention is not limited to these examples. Those skilled in the art within the scope of the technical idea disclosed in the present specification. Various changes and modifications are possible. In all the drawings for explaining the embodiments, the same reference numerals are given to those having the same function, and the repeated explanation thereof may be omitted.

  FIG. 6 is a diagram showing a schematic configuration of an example of an elevator related to an elevator having the abnormality diagnosis function of the present invention. The elevator in this example includes a hoistway 61 formed in the building, a machine room 62 provided immediately above the hoistway 61, an elevating body that elevates and lowers the hoistway 61, for example, an elevator car E10 and a counterweight 64, The main rope 65 is connected to the elevator car E10 and the counterweight 64, and the hoisting machine 66 is installed in the machine room 62 and drives the main rope 65. Further, a lifting body guide rail 67 standing on the hoistway 61 and guiding the raising and lowering of the elevator car E10, and a counterweight guide rail 68 standing on the hoistway 61 and guiding the lifting and lowering of the counterweight 64 are provided. . Further, the elevator car E10 is monitored for the ascending / descending speed, and when the elevator car E10 falls into a predetermined overspeed state, a speed governor 69 for emergency stopping the elevator car E10 and the elevator car E10 are provided. And an emergency stop device 610 for mechanical emergency stop.

  As shown in FIG. 6, the governor 69 is disposed in the hoistway 61, and is connected to an endless governor rope 69 a connected to the elevator car E <b> 10 via a connecting member 611, and is fixed to a horizontal axis. A sheave 69b around which the curved portion at the upper end of the governor rope 69a is wound, and a tension wheel 69c that is disposed at the lower part of the hoistway 61 and around which the curved portion at the lower end of the governor rope 69a is wound around. Further, an overspeed detector (not shown) and a governor rope gripping mechanism for the governor rope 69a are provided.

  In the machine room 62, an elevator control device that includes a CPU, a storage device, a control circuit, and the like and performs computer control of the elevator is installed. The elevator control device controls the operation of the elevator and also controls a diagnostic operation for abnormality diagnosis. Moreover, various sensors are installed in each component part of the elevator, and various sensor information indicating the operation status of the elevator is transmitted to the control device of the elevator. For example, a load sensor for an elevator car, a sensor for monitoring the opening / closing state of a door, a sensor for monitoring the torque of a hoisting motor, and the like are provided. Further, the elevator control device is connected to an elevator monitoring center via a communication network or the like, and the operation status is monitored.

  FIG. 6 shows a schematic configuration of an example of an elevator including the machine room 62, but there is an example of a so-called machine room-less elevator without a machine room. The present invention can be applied to such a machine room-less elevator, and the elevator control device is housed in the hoistway 61.

  In an elevator having an abnormality diagnosis function of the present invention, abnormality diagnosis is performed by computer control by an elevator control device, and the control device reads and executes a program stored in the storage device. Of course, a part of the control of the abnormality diagnosis can be shared by a control unit provided in each component of the elevator. For example, the unattended detection of an elevator car may be performed by the control unit of the elevator car determining and detecting information on a load sensor provided in the elevator car.

  The elevator having an abnormality diagnosis function of the present invention has a function of detecting unattended during normal operation, and performs diagnostic operation when there is no unattended during normal operation. An elevator having an abnormality diagnosis function according to an embodiment of the present invention is an elevator having an abnormality diagnosis function for diagnosing an abnormality of an elevator from a sensor signal collected by the sensor by installing a sensor in the elevator, When there is a diagnostic item in which the sensor signal is abnormal in the abnormality diagnosis and a diagnostic item in which the sensor signal is normal in the abnormality diagnosis, the abnormality diagnosis is performed during the diagnostic operation during the periodic inspection. The elevator has an abnormality diagnosis function that omits at least a part of diagnosis of a diagnosis item whose signal is normal and re-diagnose a diagnosis item whose sensor signal is abnormal in the abnormality diagnosis. Thereby, when all the diagnostic items are completed during the normal operation until the periodic inspection, the diagnostic operation can be completely stopped during the periodic inspection. Here, abnormality diagnosis performed during unattended normal operation does not involve special diagnostic operation (operation dedicated for diagnosis), so if a passenger arrives during abnormality diagnosis, the abnormality diagnosis is performed immediately. Interruption and normal operation are possible. In addition, abnormality diagnosis performed during unattended operation during normal operation may be performed repeatedly over and over again until the periodic inspection. good.

  Since the elevator having the abnormality diagnosis function of the embodiment of the present invention performs abnormality diagnosis after detecting an unmanned state in normal operation, it is possible to reduce the influence of passengers getting on and off at the time of abnormality diagnosis, The diagnostic accuracy can be improved as compared with the elevator automatic diagnosis technology. Moreover, since the diagnostic items diagnosed as normal in the abnormality diagnosis can be omitted during the diagnostic operation during the periodic inspection, the diagnostic operation time during the periodic inspection can be shortened.

In particular, the elevator having the abnormality diagnosis function of the present invention is optimal for diagnostic operation of diagnostic items that can be performed when there are no passengers or diagnostic items that cause abnormalities due to secular change, thereby reducing the diagnostic operation time during periodic inspection. It can be shortened. For example, by detecting an abnormality in the operation sound of the door of an elevator car, it is possible to detect an abnormality such as a door slip, a clogged door groove, and a door running on a rail with accumulated dust. Further, by detecting the opening / closing acceleration of the door, it is possible to detect abnormalities such as a door start position and a door stop position.
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic block diagram illustrating an example of an elevator diagnosis function unit 101 provided in an elevator control device provided in an elevator 100 having an abnormality diagnosis function according to a first embodiment of the present invention.

  The elevator diagnosis function unit 101 includes an unmanned detection unit 10, an abnormality diagnosis unit 20, a diagnosis operation reduction unit 30, and a diagnosis operation command unit 40, and a sensor signal S10 is input from various sensors installed in each component of the elevator. Then, a diagnostic operation signal S20 is output. As described above, the elevator diagnosis function unit 101 may be provided in an integrated manner with the elevator control device, and all or part of the functions of the parts related to each component of the elevator may be an elevator car, a speed governor, You may disperse | distribute and arrange | position to each component of elevators, such as a winding machine and an air conditioning machine.

An example of the abnormality diagnosis function of the elevator diagnosis function unit 101 is shown below.
The unmanned detection part 10 detects whether the inside of an elevator car is unmanned from the load sensor signal of an elevator car among various sensor signals S10 of an elevator during normal operation. When the elevator car is unattended during normal operation, the abnormality diagnosis unit 20 diagnoses whether there are any abnormalities in the various sensor signals S10 of the elevator. The diagnostic operation reduction unit 30 generates a diagnostic item list that is a list of diagnostic items to be diagnosed in the diagnostic operation during the periodic inspection. Specifically, the diagnostic operation reduction unit 30 deletes the diagnostic item of the sensor signal diagnosed as normal by the abnormality diagnostic unit 20 from the diagnostic item table (also a diagnostic item list) or sets a flag for deletion. As a result, since the diagnostic item diagnosed as abnormal by the abnormality diagnostic unit 20 remains in this diagnostic item table, it is stored as a diagnostic item list. The diagnostic operation command unit 40 issues a command to execute the diagnostic items remaining in the diagnostic item list generated by the diagnostic operation reduction unit 30 during the periodic inspection, and outputs a diagnostic operation signal S20.

  The elevator sensor signal S10 is a signal for controlling the elevator and a signal for sensing the state of the elevator. The signal for controlling the elevator is, for example, a current value or a torque value for a hoisting motor, a load sensor value for an elevator car, and a door position or the like for a door. This is the speed command value. The signal for sensing the state of the elevator is, for example, a signal from an acoustic sensor, an acceleration sensor, an image sensor, a temperature sensor, or the like.

  The unmanned detector 10 detects whether the elevator car is unmanned by a load sensor, an acoustic sensor, an image sensor, or a combination thereof attached to the elevator car. When unattended, a trigger for starting abnormality diagnosis is issued to the abnormality diagnosis unit.

  The abnormality diagnosis unit 20 receives the trigger from the unmanned detection unit 10 and the elevator sensor signal S10, performs abnormality diagnosis, and outputs the result of the abnormality diagnosis. The elevator sensor signal S10 is, for example, a hoisting machine abnormality diagnosis, and is a torque value of the hoisting machine motor. If the input value is larger or smaller than a predetermined threshold value, it is determined that there is an abnormality. . Or, in the case of a door abnormality diagnosis, in order to see whether the door movement is normal, a method of determining an abnormality when the door acceleration signal or acoustic signal is larger or smaller than a predetermined threshold, A method is conceivable in which the sensor value is subjected to frequency analysis and the frequency value is determined to be abnormal by a statistical method such as clustering or principal component analysis.

  The diagnostic operation reduction unit 30 receives the result of the abnormality diagnosis of the abnormality diagnosis unit 20, has a diagnosis item table, and outputs a diagnosis item list to be diagnosed at the time of periodic inspection.

  FIG. 2 is a table showing an example of a diagnosis item table of the elevator 100 having the abnormality diagnosis function according to the first embodiment of the present invention. The diagnostic item table is a table including a plurality of diagnostic items including four items of the target device name, location, sensor signal, and diagnostic result displayed in one horizontal line. The term of the diagnosis result is reset at the time of periodic inspection, and in the abnormality diagnosis during unattended operation in normal operation, a check is made for a diagnosis item for which the sensor signal is determined to be normal by the abnormality diagnosis unit 20 (a flag is displayed on the table in the storage unit). Standing). At the next periodic inspection, diagnostic items that are not checked are output to the diagnostic operation command unit 40 as a diagnostic item list, and re-diagnosis is performed. In other words, a check in the diagnosis result column of the diagnosis item table corresponds to deletion from the diagnosis item list. Instead of putting a check in the diagnosis result column, it may be deleted from the diagnosis item table.

  In FIG. 2, for example, since the acoustic sensor signal at the first floor door is normal, the diagnostic result of the diagnostic item shown in that row is checked and deleted from the diagnostic item list, so re-diagnosis is performed during periodic inspection. Not done. On the other hand, in FIG. 2, for example, because the acoustic sensor signal at the second floor door is abnormal, the diagnostic result of the diagnostic item shown in that row is not checked and remains in the diagnostic item list, so re-diagnosis at the periodic inspection Is done.

  It should be noted that during diagnostic operation during regular inspection, all diagnosis items for which the sensor signal S10 is normal in the abnormality diagnosis are omitted, and only diagnosis items in which the sensor signal S10 has an abnormality in the abnormality diagnosis are re-diagnosed. If this is done, the time required for diagnostic operation during periodic inspections can be greatly reduced. However, for example, when the abnormality diagnosis is performed a plurality of times, abnormal cases and normal cases occur in the same diagnostic item. Since there is a case where it is desired to re-diagnose the diagnosis items that are normal, the diagnosis items for which the sensor signal S10 is normal may be re-diagnosed while leaving at least a part thereof.

  In addition, the diagnostic item in which the sensor signal S10 has an abnormality is repeatedly diagnosed for abnormality during normal operation, and the diagnostic item in which the sensor signal S10 has changed from abnormal to normal in the abnormality diagnosis is diagnosed during the diagnostic operation during the periodic inspection. By omitting, transient abnormalities can be eliminated, and the time for diagnostic operation during periodic inspection can be shortened.

  Further, during normal operation, no part of or all of the diagnostic items for which the sensor signal S10 is normal is repeatedly diagnosed for abnormality, and the diagnostic item for which the sensor signal S10 has changed from normal to abnormal in the abnormal diagnosis is By performing re-diagnosis at the time of diagnostic driving, it is possible to re-diagnose a diagnosis item that has changed to an abnormality from the middle, and an abnormality can be detected early. In this case, for example, in the diagnostic item table of FIG. 2, the check attached to the diagnostic result of the diagnostic item changed from normal to abnormal may be removed.

  Note that a diagnostic item in which the sensor signal S10 is normal even once in the abnormality diagnosis may be deleted from the diagnostic item list. In this case, the diagnostic operation will not be performed at the periodic inspection even if it changes to an abnormality in the middle. However, the diagnostic item list (diagnostic item table) is reset after the periodic inspection until the next periodic inspection. If the abnormality continues, it remains in the diagnosis item list, and re-diagnosis is performed at that time. In this case, the timing of re-diagnosis is delayed, but there is no problem even if the diagnosis item does not require urgency, for example.

  The diagnosis operation command unit 40 receives the diagnosis item list generated by the diagnosis operation reduction unit 30 and outputs a diagnosis operation signal S20 according to the diagnosis item list at the time of periodic inspection to perform the diagnosis operation of the elevator. For abnormalities that require urgency, an alarm is issued or a notification is sent to the monitoring center.

  In diagnostic operation during periodic inspection, the diagnostic items in the diagnostic item list are re-diagnosed. This rediagnosis is also performed by the elevator diagnosis function unit 101. This re-diagnosis may be performed by the abnormality diagnosis unit 20, a re-diagnosis unit (not shown) may receive the sensor signal S10 and perform re-diagnosis, or the diagnostic operation command unit 40 may receive the sensor signal S10 and perform re-diagnosis. It may also function as a diagnostic unit.

  FIG. 3 is a flowchart showing an example of the diagnostic operation of the elevator 100 having the abnormality diagnosis function according to the first embodiment of the present invention.

  When the diagnosis is started, a sensor signal is acquired in an elevator sensor signal acquisition step F1, and sensor data is created.

  In the unmanned detection step F2, it is determined whether or not the elevator car is unmanned by using the sensor data created in step F1 and comparing it with a predetermined threshold value. If it is unattended, the process proceeds to the abnormality diagnosis step F3. If not, the process returns to step F1.

  In the abnormality diagnosis step F3, the abnormality diagnosis of the elevator is performed using the sensor data created in step F1 or the sensor data acquired and created while the inside of the car is determined to be unmanned in step F3. In the diagnosis method, the abnormality diagnosis unit 20 compares the sensor data with a predetermined threshold value to determine that the sensor data is abnormal when it is larger or smaller than the threshold value. A method for determining abnormality by a statistical method such as clustering or principal component analysis is conceivable.

  In the diagnostic operation reduction step F4, the diagnostic item table is called from the storage unit, and the diagnostic operation reduction unit 30 checks the diagnostic items determined to be normal in step F3 (sets a flag). If necessary, the process returns to step F1 and the same processing is repeated for another diagnostic item.

  When a trigger for starting periodic inspection is input during the periodic inspection, the diagnostic operation reduction unit 30 outputs a diagnostic item list S30 excluding the diagnostic items checked in the previous diagnostic operation.

  In the diagnostic operation command step F5, in accordance with the diagnostic item list S30, the diagnostic operation command unit 40 outputs the diagnostic operation signal S20 to perform the diagnostic operation.

FIG. 4 is a schematic explanatory view showing an example of an elevator 100 having an abnormality diagnosis function according to the second embodiment of the present invention.
The elevator 100 includes an elevator car E10 having an acoustic sensor A10 and an unmanned detection sensor A30, and an elevator diagnosis function unit 101. Diagnose abnormalities around the elevator door E20. E30 is a door rail, and E40 is a door opening / closing drive mechanism. In this embodiment, an example of diagnosis around the elevator door E20 will be described. Data acquired by the unmanned detection sensor A30 is input to the elevator diagnosis function unit 101 as an elevator sensor signal S10, and the unmanned detection unit 10 detects that the elevator car E10 is unmanned. An unattended sensor value is recorded in advance, and an appropriate threshold is set. By comparing with the input sensor value, unattended in the elevator car is detected. As unmanned detection sensor A30, what was illustrated as a sensor which unmanned detection part 10 explained by the 1st example utilizes can be used.

  Data acquired by the acoustic sensor A10 such as a microphone is input to the elevator diagnosis function unit 101 as an elevator sensor signal S10, and abnormal sounds around the elevator door are diagnosed. The door opening / closing sound data during normal operation is stored in advance, and an abnormal sound around the door is detected by comparing with the input sensor value. The comparison method includes a method of judging abnormality by comparing the sound pressure (dB) of the acoustic sensor value with a threshold, and a method of judging abnormality of the frequency value by a statistical method such as frequency analysis of the sensor value and comparison of frequency characteristic distribution. Conceivable. In addition, there are many analysis methods such as frequent pattern extraction and classification, and machine learning (principal component analysis, clustering, support vector machine) that learns regularity by repeatedly learning normal operation sounds as learning data. It is done.

  The abnormality diagnosis unit 20 determines whether the sensor signal from the acoustic sensor input to the elevator diagnosis function unit 101 is normal or abnormal. The diagnostic operation reduction unit 30 deletes a diagnostic item for which the sensor signal is diagnosed as normal from the diagnostic item list, and a diagnostic operation signal S20 for executing the diagnostic item remaining during the periodic inspection is output from the diagnostic operation command unit 40. The

FIG. 5 shows a configuration example of a sensor of the elevator 100 having an abnormality diagnosis function according to the third embodiment of the present invention. This corresponds to a specific example or modification of the second embodiment.
As the unmanned detection sensor A30, a load sensor A20 installed in the elevator car E10 or an image sensor A40 installed in the elevator car E10 can be used. Because of the elevator structure, the elevator car E10 has a larger swing width at the lower part than at the upper part. Therefore, the load sensor A20 is preferably installed on the bottom surface of the elevator car E10. Further, it is conceivable that the image sensor A40 installed in the elevator car E10 uses a surveillance camera. Either one of the load sensor A20 and the image sensor A40 may be installed or used in combination.

  It is desirable to install the acoustic sensor A10 that detects the abnormal sound described in the second embodiment near the door. The position may be the lower part of the door as shown in FIG. 4, the upper part of the door as shown in FIG. In addition, it is also possible to use two or more acoustic sensors to increase sensitivity. It is also possible to use an intercom microphone attached to the elevator car.

  As described in the above embodiments, according to the present invention, since the abnormality of the elevator is diagnosed after detecting the unmanned state in the normal operation, the diagnostic accuracy can be improved. In addition, the diagnostic items diagnosed as normal are omitted during the diagnostic operation during the periodic inspection, and the diagnostic items diagnosed as abnormal are rediagnosed, so that the diagnostic operation time during the periodic inspection can be shortened.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

  Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 10 ... Unmanned detection part, 20 ... Abnormality diagnosis part, 30 ... Diagnosis driving | operation reduction part, 40 ... Diagnosis driving command part, 100 ... Elevator which has an abnormality diagnosis function, A10 ... Acoustic sensor, A20 ... Load sensor, A30 ... Unmanned detection sensor A40 ... Image sensor, E10 ... Elevator car, F1 ... Elevator sensor signal acquisition step, F2 ... Unmanned detection step, F3 ... Abnormal diagnosis step, F4 ... Diagnostic operation reduction step, F5 ... Diagnostic operation command step, S10 ... Sensor signal, S20: diagnostic operation signal, S30: diagnostic item list.

Claims (11)

Abnormality diagnosis function including a sensor installed in each component device of an elevator including an elevator car, and a control device having a diagnosis function unit that receives sensor signals from the sensors and diagnoses an abnormality of the elevator from the collected sensor signals In an elevator having
The diagnostic function unit performs an abnormality diagnosis when the elevator car is not operating normally. When there is a diagnosis item in which the sensor signal is abnormal in the abnormality diagnosis and a diagnosis item in which the sensor signal is normal, a periodic check is performed. At the time of diagnostic operation, at least a part of diagnosis of the diagnosis item in which the sensor signal is normal in the abnormality diagnosis is omitted, and the diagnosis item in which the sensor signal is abnormal in the abnormality diagnosis is re-diagnosed. An elevator having an abnormality diagnosis function. In claim 1,
During diagnostic operation during the periodic inspection, omitting all diagnosis items for which the sensor signal was normal in the abnormality diagnosis, and rediagnosing only the diagnosis item for which the sensor signal was abnormal in the abnormality diagnosis An elevator having an abnormality diagnosis function characterized by. In claim 2,
In order to re-diagnose only the diagnostic item in which the sensor signal is abnormal in the abnormality diagnosis during the diagnostic operation during the periodic inspection, the diagnostic function unit displays the diagnostic item in which the sensor signal is normal in the abnormality diagnosis. An elevator having an abnormality diagnosis function that is deleted from a diagnostic item list and rediagnoses diagnostic items remaining in the diagnostic item list during diagnostic operation during the periodic inspection.   The diagnostic item according to any one of claims 1 to 3, wherein a diagnostic item having an abnormality in the sensor signal is repeatedly diagnosed for abnormality during the unattended operation of the normal operation, and the sensor signal is changed from abnormal to normal in the abnormality diagnosis. Is an elevator having an abnormality diagnosis function, characterized in that diagnosis is omitted during diagnostic operation during the periodic inspection.   5. The diagnostic item according to claim 4, wherein a part or all of the diagnostic items in which the sensor signal is normal are repeatedly diagnosed for abnormality during the unattended normal operation, and the sensor signal is changed from normal to abnormal in the abnormality diagnosis. Is an elevator having an abnormality diagnosis function, characterized in that rediagnosis is performed during diagnostic operation during the periodic inspection.   6. The diagnostic function unit according to claim 1, wherein the diagnostic function unit detects that the inside of the elevator car is unmanned by any one of a load sensor, an acoustic sensor, an image sensor, or a combination thereof attached to the elevator car. An elevator having an abnormality diagnosis function, comprising: an unmanned detection unit that performs an abnormality diagnosis when the unmanned detection unit detects that there is an unmanned signal. A sensor installed in each component device of the elevator including the elevator car, and a control device that receives the sensor signal from the sensor and diagnoses the abnormality of the elevator from the collected sensor signal and controls the operation of the elevator car. In an elevator having an abnormality diagnosis function in which the control device diagnoses whether there is an abnormality in the door during normal operation of the elevator,
The control device includes:
An unmanned detector that detects that the elevator car is unmanned by a load sensor, an acoustic sensor, an image sensor, or a combination thereof attached to the elevator car;
During normal operation and when the unmanned detector detects that the elevator car is unattended, diagnoses the presence or absence of abnormal noise in the elevator door by executing diagnostic processing on the sound data around the elevator door An abnormality diagnosis unit to
A diagnostic operation reducing unit that deletes a diagnostic item diagnosed as normal by the abnormality diagnostic unit from a diagnostic item list that is executed during diagnostic operation at the time of periodic inspection;
The said control apparatus performs the diagnostic driving | operation at the time of a periodic inspection using the said diagnostic item list produced | generated by the said diagnostic driving | operation reduction part, The elevator which has an abnormality diagnosis function characterized by the above-mentioned.   8. The elevator having an abnormality diagnosis function according to claim 7, wherein the abnormality diagnosis unit diagnoses an abnormal sound when the door of the elevator car is opened and closed.   9. The sensor according to claim 8, wherein the sensor that inputs a sensor signal to the abnormality diagnosis unit is a microphone, and the microphone is installed in the vicinity of the door of the elevator car at at least one of an upper part and a lower part in the elevator car. An elevator having an abnormality diagnosis function.   10. The method according to claim 9, wherein the abnormality diagnosis unit is a method of determining abnormality by comparing a sensor value from the microphone with a threshold value, or a method of analyzing the frequency of the sensor value and determining abnormality of the frequency value by a statistical method. An elevator having an abnormality diagnosis function, characterized in that   The abnormality diagnosis unit according to any one of claims 7 to 10, wherein the abnormality diagnosis unit repeatedly diagnoses an abnormality in the diagnosis item diagnosed as abnormal by the abnormality diagnosis unit when the normal operation is unattended, and the diagnosis operation reduction unit includes the abnormality An elevator having an abnormality diagnosis function, wherein a diagnosis item changed from abnormality to normal in a diagnosis unit is deleted from the diagnosis item list.

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