JP2000327240A - Elevator control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain lowering of service to the minimum while securing safety by reopening operation when a cause of abnormality is eliminated thereafter even when abnormality of an elevator system due to a temporary cause such as noises is detected and operation is once stopped. SOLUTION: When abnormality detection means 3a, 3b, 3c... detect abnormality of constitutional elements of an elevator 2, travelling operation control means 1, 4 once stop operation of the elevator. Thereafter, when an operation resetting means 5 tries operation resetting of the elevator 2 and no abnormality is detected by the abnormality detection means, operation of the elevator is reopened. Consequently, it is possible to prevent lowering of service without spoiling safety of the elevator 2 by automatically reopening operation of the elevator 2 when abnormality is temporary and is eliminated even after operation of the elevator 2 is once stopped as abnormality is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an elevator control device.

[0002]

2. Description of the Related Art Conventionally, there is known an elevator control apparatus shown in FIG. 7 which stops when an abnormality is detected in an elevator and performs an operation for rescuing a passenger after the abnormality is detected. In this conventional elevator control device, the traveling operation control device 1 issues a traveling command such as calling a car and traveling to a registered floor in response to a call of a call button provided on a car or each elevator landing floor. Has given to. The elevator 2 is provided with a plurality of abnormality detection devices 3a, 3b,... For monitoring the respective abnormalities of the components, and constantly monitors the state of each component of the elevator system.
If an abnormality is detected, it is output to the operation stop control device 4.

The operation stop control device 4 includes an abnormality detection device 3a,
When an abnormality detection signal is received from any of 3b,..., The traveling of the car is temporarily stopped. An announcement is made to prompt the passengers to get off and the car breaks down. On the other hand, when the elevator car is temporarily stopped after detecting the abnormality, if the car is not in the door opening / closing zone, if the content of the abnormality is mild and low-speed traveling is possible, the operation stop control device 4 The car is moved to the door opening / closing zone at low speed, an announcement is issued urging the passenger to open the door and get off, and a command is issued to the traveling operation device 1 to stop the operation of the elevator 2 to cause a failure. If the car is not in the door opening / closing zone at the time of the abnormality and the car is unable to run at low speed even if the content of the abnormality is severe or mild, the elevator 2 is stopped and the passengers An announcement is made to press the emergency call button, and it is considered as a failure.

FIG. 8 is a flowchart showing a control operation of the conventional elevator control device when an abnormality is detected. The abnormality is constantly monitored by the abnormality detection devices 3a, 3b,..., And if an abnormality is detected, the operation stop control device 4 stops the car (steps S05, S10). Then, when the car stops, if there is a car in the door opening / closing zone, the door is opened and an announcement is made to get off to the passenger, and a failure is caused (steps S15, S20, S25).

[0005] However, if the position at the time of stopping the car due to the abnormality detection is outside the door opening / closing zone (branch to NO in step S15), the content of the abnormality is mild,
If low-speed running is possible, the car is driven at low speed to the door opening / closing zone, the door is opened, the passenger is announced to get off, and a failure is determined (steps S30, S35, S
40, S25). Further, when the content of the abnormality is not mild (NO in step S30), and when the car cannot be driven at low speed even if the content of the abnormality is mild (step S3).
In (NO at 5), an announcement is made to press an emergency call button to request an emergency rescue operation, and the elevator is broken down (steps S45 and S25).

[0006]

However, such a conventional elevator control device has the following problems. When a temporary abnormality occurs in the elevator system due to noise or other factors, the cause of the abnormality is often eliminated and normal driving can be performed when it fails due to the command of the operation stop control device, but in such a case, In addition, the operation of the elevator is stopped as a failure, and the elevator manager and the technician are requested to perform a recovery operation, so that the service of the elevator operation is deteriorated, and the technician is burdened with unnecessary labor. .

[0007] The present invention has been made in view of such a conventional problem. Even if the operation of the elevator system is temporarily stopped by detecting an abnormality of the elevator system due to a temporary factor such as noise, the abnormality is thereafter detected. It is an object of the present invention to provide an elevator control device capable of restarting the operation as much as possible when the factor has disappeared, and capable of minimizing a decrease in service while ensuring safety.

[0008]

An elevator control apparatus according to a first aspect of the present invention includes an abnormality detection unit that detects an abnormality in an elevator system, and stops the operation of the elevator when the abnormality detection unit detects the abnormality. A vehicle comprising traveling operation control means, and operation return means for restoring the operation of the elevator if the abnormality detection means has stopped detecting the abnormality after the operation of the elevator is stopped by the traveling operation control means. It is.

In the elevator control apparatus according to the first aspect of the present invention, when the abnormality detecting means detects an abnormality in a component of the elevator system, the traveling operation control means temporarily stops the operation of the elevator. Then, the operation return unit attempts to return to operation of the elevator, and restarts the operation of the elevator if abnormality detection by the abnormality detection unit has disappeared.

In this way, even if the operation of the elevator is temporarily stopped due to the detection of the abnormality, the operation of the elevator is automatically restarted if the abnormality is temporarily eliminated and the safety of the elevator is improved. Service degradation is prevented without compromising service.

An elevator control device according to a second aspect of the present invention is
In Claim 1, when the operation return control of the elevator is returned by the operation return means, the abnormality is detected by the abnormality detection means, and the travel is stopped by the travel operation control means a predetermined number of times, it is determined that the elevator has failed. And a return restricting means for prohibiting the operation return control by the operation return means.

In the elevator control apparatus according to the second aspect of the present invention, even if the operation of the elevator system is stopped once after detecting an abnormality in the component of the elevator system, the operation return means repeats the operation of the elevator several times. When the abnormality detection by the abnormality detection unit and the stop of the traveling by the traveling operation control unit are repeated a predetermined number of times within a predetermined time, the return restricting unit determines that the elevator has failed and prohibits the operation return control by the operation return unit.

In this way, if the same abnormality is detected several times and it is really a failure, safety is ensured by restricting automatic return of operation.

According to a third aspect of the present invention, there is provided an elevator control device comprising:
3. The importance of the abnormality of the elevator system according to claim 2, wherein the return restricting unit changes a condition of the return control of the elevator operation by the operation return unit according to a type of abnormality detected by the abnormality detection unit. By setting the operation return repetition condition according to the above, the condition of the automatic operation return can be set on the safer side especially for an abnormality having a high importance in safe operation.

According to a fourth aspect of the present invention, there is provided an elevator control device comprising:
Claim 1 to Claim 3, further comprising a call holding means for holding a hall call and a car call registered before the abnormality detection when the operation return means controls the elevator operation. In the case where the elevator automatically returns after an emergency stop due to the detection of a temporary abnormality, it is possible to avoid the trouble of having the user call the hall again and register the car call. The elevator control device according to a fifth aspect of the present invention is the elevator control device according to the fourth aspect, wherein the operation return unit transmits the call to the call holding unit in accordance with a type of abnormality detected by the abnormality detection unit during the return control of the elevator operation. This is to cancel the held hall call and car call, and after the emergency stop due to abnormality detection, the automatic operation return control is started. The rescue operation to the nearest floor is enabled by canceling the call and the car call.

According to a sixth aspect of the present invention, there is provided an elevator control device comprising:
6. The vehicle according to claim 1, further comprising, when the abnormality detection means detects an abnormality related to door opening / closing detection, when the operation of the elevator is stopped by the traveling operation control means, between the ride and the floor of the hall. A door opening / closing confirmation means for opening / closing the door and confirming whether the opening / closing detection is normal if the passenger is at a position where passengers can enter / exit, and then causing the operation restoration control means to perform operation restoration control. Only in the door opening / closing zone where the door can be opened and the passenger can be dropped down on the floor, the door can be actually opened / closed to confirm that there is no abnormality in the opening / closing function, and then the automatic operation return control is performed. In addition to improving the service by the automatic operation return function when an abnormal abnormality is detected, the safety of passengers when the door opening / closing mechanism is actually abnormal is ensured.

According to a seventh aspect of the present invention, there is provided an elevator control device comprising:
7. The car according to claim 1, wherein when the abnormality detecting means detects an abnormality relating to the detection of a car position, if the elevator can be returned to operation, the car is detected until a position at which the floor can enter and exit the hall is detected. Move the door to open it, issue an announcement so that the passenger gets off, close the door, and then run the elevator to the predetermined car position detection reference position to recognize the correct car position and then return to the service return means. It is provided with a car position confirmation means for performing operation return control, and automatically corrects the car position.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a configuration of an elevator control device according to a first embodiment of the present invention. The traveling operation control device 1 gives the elevator 2 a traveling command such as calling the car and traveling to the registered floor in response to the call of the call button provided on the car or each elevator landing floor. The elevator 2 has a plurality of abnormality detecting devices 3a and 3 for monitoring the respective abnormalities of the components.
are provided, and the status of each component of the elevator system is constantly monitored. If an abnormality is detected, the abnormality is output to the operation stop control device 4. When the operation stop control device 4 receives an abnormality detection signal from any of the abnormality detection devices 3a, 3b,..., The operation stop control device 4 sends an operation command to stop the traveling of the car to the traveling operation control device 1.

The operation return device 5 gives a command to the operation stop control device 4 for reconfirming the detection state from the abnormality detection devices 3a, 3b,... If the detection has already disappeared, the operation stop control device 4 is released from the stop command of the traveling operation and the traveling operation control device 1 is given an operation return command. In addition, the operation return device 5 determines that a failure has occurred when the repetition limit of the operation return control described below has been reached, and that the traveling operation control device 1 causes the failure while the elevator is stopped, and issues an emergency call button to the passenger. Make an announcement prompting you to press.

The call holding determining device 6 includes an abnormality detecting device 3a,
3b,..., And determines whether the type of abnormality is a preset type to be held or to be canceled and passes it to the call holding device 7. The call holding device 7 holds a registered call when receiving a call holding command from the call holding determination device 6 with respect to a registered hall call and a car call, and issues a command to cancel the call when receiving a cancel command. It is given to the control device 1.

The operation return restricting device 8 includes the abnormality detecting device 3
a, 3b,..., the number of repetitions of the automatic operation return control by the driving operation control device 1
It is limited by the number of times of detection of the same type of abnormality repeatedly detected within a predetermined time.
And continues to issue a traveling operation stop command to the traveling operation control device 1. The condition of the operation return repetition restriction is determined by the operation return restriction command device 9 based on the content of the abnormality detection signal output from the abnormality detection devices 3a, 3b,..., And the number of times the automatic operation return is repeated is determined by the operation return restriction device. Passed to 8.

Next, the operation of the elevator control apparatus according to the first embodiment having the above configuration will be described with reference to a flowchart shown in FIG. When the abnormality is constantly monitored by the abnormality detection devices 3a, 3b,..., And the abnormality is detected, the operation stop control device 4 stops the car (step S1).
05, S110). Then, prior to the automatic operation return operation, the operation return restriction command device 9 sets the abnormality detection devices 3a, 3
A restriction command for the number of repetitions of the automatic operation return control is obtained from the abnormality content output from b,... and passed to the operation return restriction device 8 (step S115).

The operation return restriction device 8 receives the operation return restriction command, determines whether the current operation return control exceeds the operation return restriction command, and if not, performs the operation return control ( (Step S120 branches to YES).

In the operation return control, the call holding determining device 6 determines whether or not to hold the call based on the content of the abnormality, and outputs the determination result to the call holding device 7. Hold or cancel the registered hall call and car call (steps S125 to S125).
S145) After that, the operation return device 5 gives an elevator operation return command to the traveling operation control device 1 to cause the elevator 2 to return to operation, and after this operation return, the abnormality detection devices 3a, 3b,. Return (step S150). Step S1 depends on the type of abnormality.
When the car call is canceled at 45, the car is moved to the nearest floor and stopped, and the nearest floor stop operation of opening the door and dropping the passenger is performed.

If the operation return control unit 5 determines in step S120 that the operation return restriction command is exceeded by the current operation return control, the operation return control unit 5 causes the traveling operation control unit 1 to cancel all registered calls.
An announcement is made to prompt the passenger to press the emergency call button while the elevator 2 is stopped, and a failure occurs (steps S150, S155, S160).

Thus, even if the operation of the elevator system is temporarily stopped by detecting an abnormality of the elevator system due to a temporary factor such as noise, the operation is resumed as long as the cause of the abnormality has disappeared. It is possible to minimize service degradation while ensuring safety.

Next, the second embodiment of the elevator control apparatus according to the present invention will be described.
The embodiment will be described with reference to FIGS. 3 and 4. FIG. Second
The feature of the elevator control device according to the present embodiment is that a door abnormal operation control device 10 is additionally provided in addition to the configuration of the first embodiment shown in FIG. The other components are the same as those of the first embodiment shown in FIG. 1, and the same portions are denoted by the same reference numerals.

In the elevator system, when an abnormality related to door open / close detection occurs while the car is in the door open / close zone, for example, a signal indicating that the door is fully open and a signal indicating that the door is fully closed are provided. Are turned on at the same time, and the signal consistency is not matched, one of the abnormality detection devices 3a, 3b,... Detects an abnormality in the integrity of the door full open / close signal, and the operation stop control device 4 Will be temporarily suspended. in this case,
Although the car is stopped, the car does not run in response to the additional registration of the call. However, if the driving operation is returned by the operation return device 5 while the door fully closing signal remains on for some reason, the driving operation control device 1 starts closing the door and turns off the door when the fully opening signal is turned off. Will determine that the car has been fully closed, and will be able to restart the car without closing the door completely.

In order to prevent such an operation, the second
In the elevator control device according to the embodiment, one of the abnormality detection devices 3a, 3b,... (Herein, referred to as the abnormality detection device 3a) detects an abnormality related to door open / close detection when the car is in the door open / close zone. If it is detected, after the operation of the elevator is temporarily stopped by the operation stop control device 4, the abnormal door operation control device 10 issues a command to the traveling operation control device 1 to close the door, and the door is completely closed within a predetermined time. It is ensured that the signal is turned from off to on and that the automatic return of operation is not performed unless it is confirmed that the detection of the open / close signal is normal.

The operation of the elevator control device according to the second embodiment will be described with reference to FIG. In steps S105 to S120, the abnormality detection device 3
a, 3b,... constantly monitor the presence or absence of an abnormality in each component of the elevator system. If an abnormality is detected, the operation of the car is stopped by the operation stop control device 4, and the operation return control is repeated according to the content of the abnormality. Set a limited number of times, and repeat the automatic return to confirm that the error has not disappeared. If the same abnormality is detected in step S120 even after repeating the automatic return until the number of times reaches the limit, in steps S150 to S160, the passenger cancels all the registered calls and presses the emergency button. Is announced, the operation return control by the operation return device 5 is prohibited, and a failure occurs. This step S105-
The processing in S120 and the processing in steps S150 to S160 are the same as in the first embodiment.

If the number of times of returning to operation has not reached the limit number in step S120, it is next determined whether or not the abnormality detection is an abnormality related to door opening / closing detection (step S121-1). If not abnormal, as in the first embodiment, the process proceeds to a determination process as to whether or not to hold the call from step S125 onward, and the automatic return control is repeated until the number of times reaches the limit (steps S125 to S125).
S150).

If it is determined in step S121-1 that the content of the abnormality is the door opening / closing abnormality and the car is in the door opening / closing zone, the door abnormality operation control device 1
0 performs the door opening / closing operation, and the full opening / closing signal is normally turned on / off by the opening / closing of the door (that is, the door opening command is issued, and the door full opening signal changes from off to on within a predetermined time, and the door is closed. A command is issued, and it is confirmed that the door fully closed signal changes from off to on within a predetermined time (step S).
121-2, S121-3).

If it is determined in step S121-3 that there is an abnormality in the door opening / closing operation, the process proceeds to step S150 and thereafter, all registered calls are canceled, and an announcement is made to the passenger to press the emergency button. The operation return control by the operation return device 5 is prohibited, and a failure occurs (steps S150 to S160).

On the other hand, if it is determined in step S121-3 that the door full open / close signal is normal, steps S125 to S14 are performed.
At 0, the call holding determination device 6 determines whether or not to hold the call based on the content of the abnormality, and outputs the determination result to the call holding device 7 to hold or cancel the call. The operation is resumed, and after the operation is restored, the process returns to the abnormality monitoring of the abnormality detection devices 3a, 3b,.

As described above, in the elevator control device according to the second embodiment, as in the first embodiment, the operation of the elevator system is temporarily detected by detecting an abnormality in the elevator system due to a temporary factor such as noise. Even after the stoppage, if the cause of the abnormality has disappeared, the operation is resumed as much as possible, so that the safety can be reduced and the service degradation can be minimized. Moreover, in the second embodiment, when the elevator is temporarily stopped by detecting a door opening / closing abnormality while a car is in the door opening / closing zone, even if the door is actually opened, the passenger can safely enter the elevator hall. As you can go down to the floor, you can actually open and close the door to check for abnormalities in the door opening / closing function.If there is no abnormality, perform automatic operation return control. Accordingly, while ensuring the safety of the passenger, it is possible to confirm the presence / absence of an abnormality in the door opening / closing function, and if the abnormality is a temporary abnormality, it is possible to automatically return to operation.

Next, the third embodiment of the elevator control apparatus according to the present invention will be described.
Will be described with reference to FIGS. 5 and 6. FIG. The elevator control device according to the third embodiment differs from the first embodiment shown in FIG. 1 in that a car position detection device 11, a car position detection correction operation control device 12, a landing detector 13, And the car position reference detector 14 is provided, and when any of the abnormality detection devices 3a, 3b,.
Once the operation of the elevator is stopped, if it is determined that the operation of the elevator can be returned, the car position detection correction operation control device 12 recognizes the correct car position and performs control to return to the traveling operation. And

This control enables the passenger to descend the floor by moving the car until the landing detector 13 detects the landing on the nearest floor, and announces the passenger to descend to the floor, Open the door only for the time to drop the passenger to the floor, then close the door and run the elevator until the car position reference detector 14 provided at the upper and lower ends of the hoistway detects the car, In the case of ascending operation, by recognizing the car position reference of the upper terminal floor, in the case of descending operation, by recognizing the car position reference of the lower terminal floor
The operation is returned after the car position detection device 11 recognizes the correct car position.

Next, the operation of the third embodiment will be described with reference to the flowchart of FIG. Abnormality detection device 3a,
When any of 3b,... Detects an abnormality, the car is temporarily stopped, and processing until the return control repetition limit number is determined according to the content of the abnormality (steps S105 to S105).
S120) If the same abnormality is detected even after repeating the automatic return until the limited number of times is reached in step S120, all registered calls are canceled and the passenger is announced to press the emergency button. The process of prohibiting the operation return control by the operation return device 5 and causing a failure (steps S150 to S160) is the same as that of the first embodiment. .

If it is determined in step S120 that the repetition limit of the return control has not been reached,
It is determined whether or not the detected abnormality is related to the car position (step S122-1).

If it is determined in step S122-1 that there is no abnormality relating to the car position detection function, the process proceeds to step S125 for determining whether to hold the call, as in the first embodiment. The process is repeated until the number of times reaches the limit (steps S125 to S140).

If it is determined in step S122-1 that the content of the abnormality is related to the car position detection function, the operation return device 5 causes the traveling operation control device 1 to operate at low speed to the nearest floor (step S122). −
2) If the landing detector 13 detects landing on the nearest floor, an announcement is made to the passenger to get off the floor, and the door is opened for a certain time to drop the passenger on that floor (step S122-3).

Thereafter, the car position detection correction operation control device 12 causes the traveling operation control device 1 to start the car position correction operation, closes the elevator door, and then sets the car provided at the upper and lower ends in the hoistway. The elevator is driven until a signal is detected by the position reference detector 14 (steps S122-4 and S122-5). In the case of ascending operation, if the car position reference of the upper terminal floor is recognized, and in the case of descending operation, the car position reference of the lower terminal floor is recognized, the car position detecting device 11 is re-recognized the reference position of the car. (Step S122-6).

When the car position detection correction operation is completed,
Subsequently, in steps S125 to S140, the call holding determination device 6 determines whether or not to hold the call based on the content of the abnormality, outputs the determination result to the call holding device 7, holds the call, or cancels the call. The elevator operation by the operation return device 5 is restored, and after the operation return, the process returns to the abnormality monitoring of the abnormality detection devices 3a, 3b,.

As described above, in the elevator control device according to the third embodiment, as in the first embodiment, the operation of the elevator system is detected by detecting an abnormality in the elevator system due to a temporary factor such as noise. Even after the stoppage, if the cause of the abnormality has disappeared, the operation is resumed as much as possible, so that the safety can be reduced and the service degradation can be minimized. Moreover, in the third embodiment, when the elevator is stopped by detecting an abnormality in the car position detecting function, the operation for correcting the car position detecting function is first performed by the automatic operation return control function. Control can always be maintained accurately.

[0045]

As described above, according to the first aspect of the present invention,
Even if the operation of the elevator is temporarily stopped due to the detection of an abnormality, if it is attempted to return to operation several times and the abnormality is not detected during that time, it is assumed that the first detected abnormality is temporary. Assuming that the elevator operation is automatically restarted, the elevator operation will not be completely stopped due to abnormalities detected due to noise or other temporary factors, the safety of the elevator will not be impaired, and the service will not be affected. The drop can be prevented.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, after the operation of the elevator system is temporarily stopped by detecting an abnormality of the component of the elevator system, the operation return of the elevator is performed by the operation return means. Even if it is repeated several times, each time the abnormality detection by the abnormality detecting means and the traveling stop by the traveling operation control means are repeated a predetermined number of times within a fixed time, the return restricting means judges that the elevator has failed and the operation by the operation returning means is performed. Since the return control is prohibited, the safety can be ensured by restricting the automatic return of the operation in the case of a failure.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the return restricting means sets the condition of the elevator operation return control by the operation return means according to the type of abnormality detected by the abnormality detecting means. Since it is made different, it is possible to set the conditions for repeating operation return according to the importance of the abnormality of the elevator system. Can be set to

According to the fourth aspect of the invention, in addition to the effects of the first to third aspects of the present invention, the hall call and the car registered before the abnormality was detected during the return control of the elevator operation by the operation return means. A call holding means for holding the call is provided, so that when the elevator is automatically stopped after an emergency stop due to a temporary abnormality detection, it is possible to avoid the trouble of letting the user call the hall again and register the car call. be able to.

According to the fifth aspect of the invention, in addition to the effect of the fourth aspect, the operation return means holds the call according to the type of abnormality detected by the abnormality detection means during the return control of the elevator operation. Since the hall call and the car call held in the means are canceled, when the emergency stop is detected due to the abnormality detection and the automatic operation return control is started, the automatic operation return control is already performed according to the type of abnormality. By canceling the registered hall call and car call, rescue operation to the nearest floor is possible, and more safety can be secured.

An elevator control device according to a sixth aspect of the present invention
In addition to the effects of the first to fifth aspects of the present invention, when the abnormality detecting means detects an abnormality related to the detection of opening / closing of the door, when the operation of the elevator is stopped by the traveling operation control means, the ride operation and the floor of the hall are controlled. If it is in a position where passengers can enter and exit between the doors, the doors are actually opened and closed to check whether the opening / closing detection function is normal, and then the door opening / closing confirmation means that the operation return control means performs operation return control is provided. Only in the door opening / closing zone where the doors can be opened and passengers can be dropped on the floor, the doors can be actually opened / closed to confirm that there is no abnormality in the opening / closing function, and then automatic operation return control can be performed. In addition to improving the service by the automatic operation return function when a temporary abnormality is detected, it is possible to ensure the safety of passengers when the door opening / closing mechanism is actually abnormal.

According to the seventh aspect of the present invention, in addition to the effects of the first to sixth aspects, if the abnormality detecting means detects an abnormality related to the detection of the car position, if the operation of the elevator can be returned, Move the car until it detects a position where the floor of the hall can enter and exit, open the door, issue an announcement so that passengers can get off, close the door, and then run the elevator to the predetermined car position detection reference position, The system is equipped with a car position confirmation unit that causes the operation return unit to perform operation return control after re-recognizing the correct car position, so that automatic operation return can be performed after the car position detection correction is performed when an abnormality is detected in the car position detection function. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the embodiment.

FIG. 3 is a block diagram showing a configuration according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the embodiment.

FIG. 5 is a block diagram showing a configuration according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the embodiment.

FIG. 7 is a block diagram showing a configuration of a conventional example.

FIG. 8 is a flowchart showing the operation of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Driving operation control device 2 Elevator 3a, 3b, ... Abnormality detection device 4 Operation stop control device 5 Operation return device 6 Call holding determination device 7 Call holding device 8 Operation return restriction device 9 Operation return restriction command device 10 Door abnormal operation control device 11 Car position detection device 12 Car position detection correction operation control device 13 Landing detector 14 Car position reference detector

Claims (7)

[Claims] 1. An abnormality detecting means for detecting an abnormality of an elevator system; a traveling operation control means for stopping the operation of the elevator due to the abnormality being detected by the abnormality detecting means; An elevator control device comprising: operation return means for returning the operation of the elevator if the abnormality detection by the abnormality detection means is stopped after the operation is stopped. 2. When the operation return means repeats the operation return control of the elevator, the abnormality detection by the abnormality detection means, and the travel stop by the traveling operation control means a predetermined number of times, it is determined that the elevator has failed. The elevator control device according to claim 1, further comprising a return restricting unit that prohibits the operation return control by the operation return unit. 3. The return restricting means according to claim 2, wherein the condition of the return control of the elevator operation by the operation return means is changed depending on the type of abnormality detected by the abnormality detecting means. Elevator control device. 4. A call holding means for holding a hall call and a car call registered before the abnormality is detected when the operation return means controls the return of the elevator operation. The elevator control device according to any one of claims 1 to 3. 5. The operation return means includes a hall call and a car call held in the call holding means according to the type of abnormality detected by the abnormality detection means during the return control of the elevator operation. The elevator control device according to claim 4, wherein the control is canceled. 6. When the abnormality detecting means detects an abnormality related to the detection of opening and closing of a door, when the operation of the elevator is stopped by the traveling operation control means, passengers enter and exit between the car and the floor of the hall. A door opening / closing confirmation means for opening / closing the door to confirm whether the detection of opening / closing is normal if the position is possible, and then causing the operation restoration control means to perform operation restoration control. The elevator control device according to any one of claims 1 to 5. 7. When the abnormality detecting means detects an abnormality relating to the detection of the position of the car, if the operation of the elevator can be returned, the car is moved until a position where the floor of the hall can enter and exit is detected. After the door is opened, an announcement is issued so that the passenger gets off, the door is closed, the elevator is run to a predetermined car position detection reference position, the correct car position is recognized, and then the operation return means performs operation return control. The elevator control device according to any one of claims 1 to 6, further comprising a car position confirmation unit to be performed.