JPH092752A - Elevator diagnosis device - Google Patents

Abstract

PURPOSE: To provide an elevator diagnosis device in which indication of abnormality generated in an elevator can be found in an early stage, and in which elevator actuation conditions can be automatically diagnosed. CONSTITUTION: The device comprises a detection means 2 to detect an actuation condition of an elevator 1, a frequency analysis means 3 to analyze frequency of a detection signal from the detection means 2, a diagnosis part 4 having an abnormal position specifying means 43 to specify an abnormal position of the elevator 1 based on result of analysis by the frequency analysis means 3, the detection signal, and operation control information, and determine degree of abnormality, and an elevator operation continuity determination means 44 to determine if the elevator 1 can be operated continuously or not, and a transfer means 5 to transmit result of diagnosis of the diagnosis part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator diagnostic device for diagnosing whether an elevator is operating normally.
In particular, the present invention relates to a diagnostic device for an elevator, which is suitable for early detection of signs of abnormality that occur in each part of the elevator.

[0002]

2. Description of the Related Art Conventionally, an accelerometer is mounted in a car during a regular inspection once a month, and a vibration technician of an acceleration signal output from the accelerometer is observed by a maintenance engineer who is a specialist engineer. It was designed to determine if the ride quality of the car was abnormal. In addition, the maintenance staff consisting of specialized engineers can check the opening and closing time of the elevator doors and the presence or absence of abnormal noise and vibration when opening and closing the door.
It was designed to determine whether the elevator doors were working properly.

However, in the above-described method for determining the operating state of the car or elevator door, since the determination result often has a slight difference depending on the experience and ability of a professional engineer, there is a problem that the determination result is inaccurate. there were. Further, when the acceleration sensor is mounted in the car, it is necessary to mount the acceleration sensor and bring in measuring equipment, which causes a problem that the burden on the maintenance staff is heavy.

Therefore, as one means for solving such a conventional problem, for example, as disclosed in Japanese Patent Laid-Open No. 306069/1993, an acceleration sensor is mounted in a car, and the acceleration sensor outputs. It has been proposed to display and output an abnormal portion of an elevator and inspection instruction contents based on an acceleration signal and acceleration state instruction information and car traveling position information output from an elevator operation control device. In this conventional technique, it is possible to determine whether or not the riding comfort of the car is abnormal by checking the displayed abnormal portion and the contents of the inspection instruction. You can quickly check and check for abnormal parts.

Further, as described in, for example, Japanese Unexamined Patent Publication No. 5-201643, operation data of a normal elevator is stored in advance, and when a failure of the elevator occurs, the operation data at the time of abnormality and the above-mentioned It has also been proposed to display the normal operation data of the above in the same scene in a superimposed manner. In this conventional technique, maintenance personnel visually compare and compare both operation data displayed on the same scene to immediately analyze the abnormal portion of the elevator, the content of the abnormality, and the degree of the abnormality. be able to.

[0006]

By the way, in the above-mentioned prior art, which is disclosed in Japanese Patent Laid-Open No. 5-306097, when an abnormal vibration of a car occurs, an abnormal part of the elevator and contents of inspection instructions are displayed. -Although it is possible to output, at that time the elevator is already in a dangerous state, so it is necessary for the maintenance personnel to take emergency measures. Therefore, for example, even when the maintenance personnel are performing maintenance work on other elevators, it is necessary to interrupt this maintenance work and quickly go to the elevator in which the abnormality has occurred,
There is a problem that a large physical and mental burden is imposed on the maintenance personnel. Further, when the elevator is used after the abnormal vibration of the car occurs, there is a problem that the elevator user is uncomfortable.

Further, among the above-mentioned conventional techniques, Japanese Unexamined Patent Publication No.
In the one disclosed in Japanese Patent Publication No. 2016-16343, an abnormal part of an elevator or an abnormal part of an elevator can be obtained by visually comparing directly both operation data displayed on the same scene with a maintenance worker.
Although the content and extent of the abnormality can be immediately analyzed, there is a problem in that the reliability of the accuracy of the analysis result is poor because the analysis depends on the sensory evaluation of maintenance personnel.
Furthermore, because analysis is performed based on only elevator operation data, it is possible to identify abnormal parts of the elevator, for example, although phenomena such as the opening and closing time of the elevator door becoming longer than normal can be caught, but also the cause of the abnormality is estimated. Is difficult. Therefore, for example, since it is not possible to identify a more detailed part that constitutes the elevator door, there is a problem that the final evaluation of the analysis and the determination of the elevator recovery measures based on this evaluation still depend on the competence of a professional engineer. is there.

The present invention has been made in view of the actual situation in the prior art as described above, and an object thereof is to enable early detection of signs of abnormality occurring in each part of the elevator, and
It is an object of the present invention to provide an elevator diagnostic device capable of automatically diagnosing the operating state of an elevator without depending on the evaluation and judgment by maintenance personnel.

[0009]

In order to achieve this object, the present invention is provided in an elevator that operates based on a control command output from an elevator operation control device, and diagnoses whether the operating state of this elevator is normal. In the elevator diagnostic device, the detection means for detecting the operating state of the elevator, the frequency analysis means for analyzing the frequency of the detection signal output from the detection means, and the analysis result output from the frequency analysis means, Abnormal part specifying means for specifying an abnormal part of the elevator based on the detection signal output from the detecting means and the elevator operation control information output from the elevator operation control device, and determining the degree of abnormality, and the abnormal part specifying It is determined whether or not the elevator can be continuously operated based on the identification result of the means. A diagnosis unit including elevators operation continuation determining unit, are the diagnosis result of the diagnosis unit configured to include a transfer means for alarm.

[0010]

Since the present invention is configured as described above, the operating state of the elevator is detected by the detecting means and the detection signal is output, and the frequency of this detecting signal is analyzed by the frequency analyzing means. Based on the detection signal and the operation control information of the elevator, the abnormal part identification means identifies the abnormal part of the elevator and determines the degree of the abnormality, and based on the identification result, the elevator operation continuation determination means can continue the operation of the elevator. After determining whether or not there is a failure, the transfer unit reports the diagnostic result of the diagnostic unit including the abnormal portion identification unit and the elevator operation continuation determination unit. This makes it possible to detect signs of abnormality occurring in each part of the elevator at an early stage and automatically diagnose the operating state of the elevator without depending on the evaluation and judgment by the maintenance personnel.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an elevator diagnostic apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an elevator diagnosing device according to the present invention, and FIG. 2 is a diagram for explaining a part code and an importance part rank stored in an abnormal part specifying means included in the diagnosing device of FIG. FIG. 3 is a diagram for explaining the condition code output from the condition code judging means provided in the diagnostic device of FIG. 1, FIG. 4 is a flowchart showing the processing procedure of the abnormal part identifying means provided in the diagnostic device of FIG. 1, and FIG. Is a flowchart showing the processing procedure of the elevator operation continuation determination means provided in the diagnostic device of FIG.
FIG. 6 is a flowchart showing the processing procedure of the expected value resetting means provided in the diagnostic device of FIG.

The diagnostic apparatus of this embodiment shown in FIG. 1 includes a detection means 2 for detecting the operating state of the elevator 1 and outputting a detection signal, and a frequency analysis means 3 for analyzing the frequency of the detection signal. The analysis result output from the frequency analysis means 3, the detection signal, and the elevator operation control device 10
The diagnostic unit 4 diagnoses whether the operating state of the elevator 1 is normal based on the operation control information output from the diagnostic unit 4, and the transfer unit 5 that reports the diagnostic result of the diagnostic unit 4 to a monitoring center (not shown). There is.

The elevator operation control device 10 described above is
A car position detecting means 11 for detecting the position of a car (not shown), a load detecting means 12 for detecting a load of the car, an elevator speed detecting means 13 for detecting a speed of the car, and a control of the car. And an elevator control command means 14 for outputting a command.

The above-mentioned detecting means 2 includes a sound sensor 21 for detecting a sound emitted from the elevator 1 and the elevator 1
The acceleration sensor 22 detects the acceleration applied to the vehicle and the temperature sensor 23 detects the temperature of the elevator 1.

The above-mentioned diagnosis section 4 judges the diagnosis condition of the elevator 1 and outputs the condition code, and the expected value reading means for reading the expected value determined in advance according to the condition code. 42, the analysis result output from the frequency analysis unit 3, the detection signal, and the operation control information output from the elevator operation control device 10 are compared with the expected value to identify an abnormal portion of the elevator 1. Together with the abnormal part specifying means 43 for judging the degree of abnormality, and the abnormal part specifying means 43
An elevator operation continuation determining means 44 for determining whether or not the elevator 1 can continue operating based on the identification result of
The expected value is preset and stored based on the initial operation data of the elevator 1, and the expected value is re-established only when the operating state of the elevator 1 is normal and the change with time of the elevator 1 is within a predetermined value. An expected value resetting means 45 for setting is provided.

Further, the above condition code judging means 41
Outputs a condition code composed of, for example, six numbers or letters as shown in FIG. 3, based on the combination of the detection signal output from the detection means 2 and the operation control information output from the elevator operation control device 10. It is like this. The first four numbers or letters forming this condition code are based on the condition a of the operation control information output from the elevator operation control device 10, and the car position signal from the car position detection means 11 and the load weight. Loading load signal from the detection means 12 and elevator speed detection means 1
3 corresponds to the elevator speed signal from 3 and the control command from the elevator control command means 14 in sequence. The remaining two numbers or letters constituting the above condition code are based on the condition b of the detection signal output from the detection means 2, and are attached to the respective sensors 21 to 23 and the respective sensors 21 to 23. It sequentially corresponds to the detected physical quantity of.

The abnormal portion identifying means 43 compares the detection signal output from the detecting means 2 and the analysis result output from the frequency analyzing means 3 with a predetermined expected value for each condition code, and performs a predetermined procedure. By elevator 1
The abnormal portion is identified and the degree of abnormality is determined.

In the abnormal portion identifying means 43, as shown in FIG. 2, the car, machine room,
Parts that are roughly classified in the tower, for example, parts that are moderately classified as doors, cars, operation panels, etc. for cars, and for example, doors, door rails, hanger rollers, door lock switches, etc. The part that has been stored is stored. Further, a 4-digit part code for each part of these sub-classes and a predetermined importance rank A to C for each part code are stored. For example, for the part "door" of the middle class, The part codes 0000 to 000F for each of the parts of the small classification and the importance ranks A to C that are predetermined according to the magnitude of the importance (the degree of influence on safety and performance that can affect the elevator 1 at the time of abnormality) Remembered

The above-mentioned elevator operation continuation judging means 44
Is a command for permitting normal operation of the car according to the degree of importance and the degree of abnormality of the abnormal part of the elevator 1 determined by the abnormal part identification means 43, and the operation of the car under the condition that adjustment is performed at the next maintenance inspection. Output a command to allow the car to run at a low speed to stop the car at the standard floor, a command to run the car at a slow speed to stop at the nearest floor, or a command to stop the car in an emergency. .

In this embodiment, the operating state of the elevator 1 is detected by the detecting means 2 and the respective detection signals are output. Among these detection signals, the acceleration signal from the acceleration sensor 22 and the sound sensor 21 are output. The frequency of the sound signal is analyzed by the frequency analysis means 3, and based on the analysis result and the detection signal and the operation control information, the diagnosis unit 4 diagnoses whether the operating state of the elevator 1 is normal, and the diagnosis unit 4 The diagnostic result of 1 is reported to the monitoring center (not shown) by the transfer means 5.

Then, the elevator 1 is operated by the diagnosis unit 4 described above.
When diagnosing the operating state of the
Then, the diagnosis condition of the elevator 1 is determined and the condition code shown in FIG. 3 is output. For example, as the condition a of the operation control information output from the elevator control device 10, the car position is the first floor (code: 0) and the load is 0% load (code:
0), the elevator 1 is stopped (code: 0), the mounting position is a door (code: 0), and the detected physical quantity is a sound (code: 0) as the condition b of the detection signal output from the detection means 2.
If it is 0), the condition code “000000” is output. Next, the expected value reading means 42 reads the expected value corresponding to the condition code “000000” from the expected value resetting means 45, and the abnormal part specifying means 43 outputs the analysis result output from the frequency analyzing means 3, Of the detection signal and the operation control information output from the elevator operation control device 10 are compared with the expected value to identify the abnormal portion of the elevator 1 and determine the degree of the abnormality. Based on the specified result, the elevator operation continuation determination means 44 determines whether the operation of the elevator 1 can be continued. Next, the expected value stored in the expected value resetting means 45 is reset only when the operating state of the elevator 1 is normal and the change with time of the elevator 1 is within a predetermined value. .

Next, a work procedure for identifying the abnormal portion of the elevator 1 by the abnormal portion identifying means 43 and determining the degree of abnormality will be described with reference to FIG. That is, first, in step S1, the difference between the detection value obtained by the detecting means 2 and a predetermined expected value is calculated as a percentage, and it is determined whether or not the difference exceeds 80%. As a result, for example, YES is determined. If you do (80% difference above
If it exceeds the value), the abnormality degree rank R1 is stored in step S2. If NO in step S1 (when the difference is 80% or less), it is determined in step S3 whether the difference between the detected value and the expected value exceeds 40%. For example, when it is determined to be YES (when the difference exceeds 40%), the abnormality degree rank R2 is stored in step S4. Further, in step S3 above, NO
When it is determined that (when the difference is 40% or less),
In step S5, it is determined whether or not the difference exceeds 10%. As a result, for example, when it is determined to be YES (when the above difference exceeds 10%), the abnormality degree rank R is determined in step S6.
On the other hand, if it is determined as NO in step S5 (if the difference is 10% or less), it is stored as abnormality degree rank R4 in step S7, and it is determined that there is no abnormality.
The process ends.

After storing any one of the abnormality degree ranks R1 to R4 in these steps S2, S4, S6, S7, the procedure proceeds to the following step S8, in which the frequency patterns of the acceleration signal and the sound signal analyzed by the frequency analyzing means 3 are obtained. If it is determined whether it is the same as a predetermined first frequency distribution pattern, and as a result, for example, YES is determined, the first frequency distribution pattern is determined in step S9.
Abnormal part code "00" corresponding to the frequency distribution pattern of
00 ”(that is, the abnormal site is a door sill). If NO in step S8, it is determined in step S10 whether or not the analyzed frequency pattern is the same as the predetermined second frequency distribution pattern. As a result, if YES, the procedure is Abnormal part code "0001" corresponding to the second frequency distribution pattern in S11 (that is, the abnormal part is a door rail)
To be stored. Further, if NO in step S10, it is determined in step S12 whether the analyzed frequency pattern is the same as the predetermined third frequency distribution pattern. As a result, if YES, the procedure is In S12, the abnormal part code “0002” (that is, the abnormal part is the hanger roller) corresponding to the third frequency distribution pattern is stored. Next, similarly, it is sequentially determined whether or not the analyzed frequency pattern is the same as each predetermined frequency distribution pattern, and the abnormal part code corresponding to each frequency distribution pattern is stored according to the result, and the procedure S14 is performed. However, it is determined whether the analyzed frequency pattern is the same as the predetermined nth frequency distribution pattern, and if the result is YES, for example, in step S15, the abnormal part code “corresponding to the nth frequency distribution pattern” 000F ”(that is, the abnormal portion is the door lock switch). further,
With respect to other parts such as the car and the driving board, it is determined whether the frequency pattern analyzed by the frequency analysis means 3 is the same as each predetermined frequency distribution pattern, and the abnormal part code corresponding to each frequency distribution pattern is determined. It is supposed to be set.

Next, a work procedure for determining whether or not the elevator 1 can continue the operation by the elevator operation continuation determining means 44 will be described with reference to FIG. That is, first, according to the abnormal part specified by the abnormal part specifying means 43 in step S21, the importance part rank shown in FIG. 2 is read out, and it is judged whether or not it is the rank A having the highest importance. As a result, for example, YES. If it is determined that the emergency stop of the car is output in step S22. If NO in step S21, it is determined in step S23 whether or not the read-out importance part rank is the rank B having the second highest importance level.
If it is determined to be ES, it is determined in step S24 whether or not the degree of abnormality determined by the abnormal portion identifying means 43 is the first abnormality degree rank R1, and if it is determined to be YES, for example, then the procedure proceeds to step S22. Outputs a command to stop the car in an emergency. On the other hand, if NO in step S24, a command to stop the car at a lowest speed by driving the car at low speed is output in step S25.

If NO in step S23, it is determined in step S26 whether or not the read out importance part rank is the rank C having the third highest importance, and as a result, YES, for example. If step S2
It is determined whether or not the degree of abnormality determined by the abnormal portion identifying means 43 is the second abnormality degree rank R2 as 7, and if the result is YES, for example, the procedure proceeds to step S25 to drive the car at a low speed. Outputs a command to stop at the nearest floor. On the other hand, if NO in step S27, it is determined in step S28 whether the degree of abnormality determined by the abnormal part identifying means 43 is the third abnormality degree rank R3, and if YES, the car is moved in step S29. A command to output a low speed operation and stop at the standard floor is output. If NO, a command to permit operation of the car is output in step S30 under the condition of adjustment at the next maintenance inspection. Further, when the determination in step S26 is NO, step S31
As a command, a command to permit normal operation of the car is output.

Next, a work procedure for resetting the expected value by the expected value resetting means 45 will be described with reference to FIG. That is, first, as a procedure S41, a specialist engineer inspects a predetermined item at the time of starting the operation of the elevator 1 and confirms that the operating state of the elevator 1 is normal. The data of the detection signal is stored, and it is confirmed in step S43 whether this data is the initial operation data, and in step S44, the data stored in step S42 is stored as expected value data for each condition code.

Then, after the operation of the elevator 1 is started, it is confirmed again in step S41 that the operating state of the elevator 1 is normal. Then, in step S42, the data of the detection signal output from the detecting means 2 is stored. , Then
Since it is determined in step S43 that this data is not the initial operation data, the process proceeds to step S45 and the above step S4 is performed.
It is determined whether the difference between the data of the initial expected value stored in 4 and the data stored in step S42 after the operation of the elevator 1 is started is less than or equal to the first predetermined value. As a result, if YES is determined, the process proceeds to step S46, and it is determined whether the data stored in step S42 after the operation of the elevator 1 is started is equal to or less than the second predetermined value. As a result, when it is determined to be YES, after the operation of the elevator 1 is started as step S44, step S42 is performed.
The data stored in step 3 is reset as expected value data.
On the other hand, NO in either step S45 or step S46.
If it is determined that the expected value data is not reset.
As a result, the expected value data is reset only when the operating state of the elevator 1 is normal and the change over time is within a predetermined value. In addition, the first
The predetermined value and the second predetermined value are set in a range where a determination error does not occur and in consideration of environmental changes such as ambient temperature.

In the embodiment thus constructed, the sign of abnormality occurring in each part of the elevator 1 can be detected at an early stage, and the operation state of the elevator 1 can be performed without depending on the evaluation and judgment by the maintenance personnel. Can be diagnosed automatically.

Further, the expected value resetting means 45 resets the expected value under the condition that the operating state of the elevator 1 is normal and the change with time is within a predetermined value. The accuracy in diagnosing the operating state can be further increased.

In this embodiment, the abnormal portion identifying means 4 is used.
Abnormality degree rank R1 when determining the degree of abnormality from 3
Although it is classified into four stages of ~ R4, it may be classified into three stages or less, or five stages or more as necessary. Further, the difference between the detected value obtained by the detecting means 2 and the predetermined expected value is calculated as a percentage, and 80%, 40%, and 10% are used as thresholds for comparing the difference, but other values are used. A threshold may be used. Further, when determining the degree of importance of the abnormal part by the abnormal part identification means 43, it is classified into three stages of ranks A to C, but it may be classified into two stages or four or more stages as required. .

[0031]

Since the present invention is configured as described above, it is possible to detect the sign of abnormality occurring in each part of the elevator at an early stage, so that no urgent response is required, and therefore maintenance of the elevator is not required. This has the effect of reducing the burden on maintenance staff.

Further, the operating state of the elevator can be automatically diagnosed without depending on the evaluation and judgment by the maintenance staff, and therefore even the maintenance staff without advanced technology can There is also an effect that it is possible to surely take measures to restore the elevator.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator diagnostic device of the present invention.

FIG. 2 is a diagram for explaining a site code and an importance site rank stored in an abnormal site identifying means included in the diagnostic device of FIG.

FIG. 3 is a diagram illustrating a condition code output from a condition code determination means included in the diagnostic device of FIG.

FIG. 4 is a flowchart showing a processing procedure of an abnormal portion identifying means provided in the diagnostic device of FIG.

5 is a flowchart showing a processing procedure of elevator operation continuation determination means provided in the diagnostic device of FIG. 1. FIG.

6 is a flowchart showing a processing procedure of expected value resetting means provided in the diagnostic device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 elevator 2 detection means 3 frequency analysis means 4 diagnostic part 5 transfer means 10 elevator operation control device 11 car position detection means 12 loading load detection means 13 elevator speed detection means 14 elevator control command means 21 sound sensor 22 acceleration sensor 23 temperature sensor 41 Condition Code Determining Means 42 Expected Value Reading Means 43 Abnormal Part Identifying Means 44 Elevator Operation Continuity Determining Means 45 Expected Value Resetting Means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Fujimoto 2477, Kashima Yatsu Kashima Yatsu, Hitachinaka City, Ibaraki Prefecture 3 Hitachi Car Engineering Co., Ltd.

Claims (9)

[Claims] 1. An elevator diagnosing device provided in an elevator that operates based on a control command output from an elevator operation control device and diagnosing whether the operating state of the elevator is normal or not, and detects the operating state of the elevator. From the detection means, the frequency analysis means for analyzing the frequency of the detection signal output from the detection means, the analysis result output from the frequency analysis means, the detection signal output from the detection means and the elevator operation control device Abnormal part identification means for identifying the abnormal part of the elevator based on the output elevator operation control information and determining the degree of the abnormality,
And a diagnosis unit including an elevator operation continuation determination unit that determines whether or not the elevator can be continuously operated based on the identification result of the abnormal portion identification unit, and a transfer unit that issues a diagnostic result of the diagnosis unit. An elevator diagnostic device characterized by being provided. 2. The detecting means includes at least one of a sound sensor for detecting a sound emitted from an elevator, an acceleration sensor for detecting an acceleration applied to the elevator, and a temperature sensor for detecting a temperature of the elevator. The elevator diagnostic apparatus according to claim 1, wherein: 3. An elevator operation control device, a car position detecting means for detecting a position of a car, a load detecting means for detecting a load of the car, and an elevator speed for detecting a speed of the car. The diagnostic apparatus for an elevator according to claim 1, further comprising a detection unit and an elevator control command unit that outputs a control command for the car. 4. The diagnostic unit includes a condition code determination unit that determines a diagnostic condition of the elevator and outputs a condition code, and an expected value reading unit that reads out an expected value that is predetermined according to the condition code. Abnormal part identification means,
Diagnosis whether the operating state of the elevator is normal by comparing the analysis result output from the frequency analysis means, the detection signal output from the detection means, and the operation control information output from the elevator operation control device with the expected value. The diagnostic device for an elevator according to claim 1, wherein the diagnostic device is an elevator. 5. The condition code judging means judges the diagnostic condition of the elevator based on the combination of the detection signal outputted from the detecting means and the operation control information outputted from the elevator operation control device, and outputs the condition code. The diagnostic device for an elevator according to claim 4, wherein: 6. The expected value resetting means for presetting and storing an expected value on the basis of initial operation data of the elevator, and resetting the expected value based on subsequent operation data of the elevator, by the diagnostic section. 3. The expected value resetting means resets the expected value only when the operating state of the elevator is normal and the temporal change of the elevator is within a predetermined value. The elevator diagnostic device described. 7. The abnormal portion specifying means, for each condition code,
The detection signal output from the detection means and the analysis result output from the frequency analysis means are compared with a predetermined expected value, and an abnormal part of the elevator is specified and a degree of abnormality is determined by a predetermined procedure. The elevator diagnostic device according to claim 1. 8. The elevator car continuity determining means, in accordance with the importance and the degree of abnormality of the abnormal portion of the elevator, a command for permitting normal operation of the elevator car, and the elevator car under the condition of adjustment at the next maintenance inspection. Of a command for permitting the car to operate at a low speed and stopping at the standard floor, a command for driving the car at a low speed to stop at the nearest floor, and a command for emergency stopping the car. The elevator diagnostic apparatus according to claim 1, wherein at least one determination result is output. 9. The elevator diagnosing device according to claim 8, wherein the elevator operation continuation determining means stores the degree of importance of the abnormal part set in advance for each part constituting the elevator.