JP2020117318A - Door abnormality detection system and elevator system - Google Patents

Abstract

To provide a door abnormality detection system which detects door abnormality accompanied by a car traveling regardless of the type of door abnormality by an external sensor and issues an alarm according to the detection result to an external device.SOLUTION: A door abnormality detection system 200 detects a door abnormality of an elevator 100 with a function of an evasive travel to another floor which makes a car 111 travel to another floor when an elevator door causes a door-opening failure. The door abnormality detection system comprises a detection device 210 installed on a car door 112, and to detect the travelling state of the car 111 and an opening/closing operation of the car door 112 as detection information, an abnormality determination part 223 to determine whether or not a door abnormality occurs based on the detected information and to output an alarm instruction, and an alarm generating part 224 to generate an alarm signal according to the alarm instruction. An abnormality determination part 223 detects the door opening failure based on the detected information and determines that the door abnormality occurs when the door opening failure again occurs repeatedly a predetermined number of times after the evacuating travel to another floor executed.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to an elevator door abnormality detection technique for detecting door opening/closing abnormality that occurs when an elevator car door and a landing door are opened and closed.

There is a technique of detecting an abnormality in an elevator door or the like by obtaining a signal from an external sensor rather than an elevator control device. For example, in Patent Document 1, "a car door that is openably and closably provided in a car, a door hanger that suspends the car door, a roller that is rotatably provided on the door hanger, and a door rail that guides the roller are disclosed. And an elevator door abnormality detection device including a detection unit that detects an abnormality that occurs when the car door opens and closes. The detection unit is provided on the door hanger, and is a three-axis device that detects acceleration of the opening and closing operation of the car door. An acceleration sensor and acceleration abnormality detecting means for detecting abnormality in the opening/closing operation of the car door based on a change in the acceleration of the car door detected by the three-axis acceleration sensor (abstract abstract) Is disclosed.

When a door open defect is detected in the elevator and the passenger cannot get off, the car call of the stop floor that is closest to the door open floor is automatically registered, and the passenger is not far from the destination floor. Some are equipped with a function to evacuate other floors. For example, in Patent Document 2, "When the door opening failure determination means determines that the door is not open well and the dismounting detection means cannot detect the passenger's dismounting, the car call automatic registration means is closest to the door opening failure floor. Automatically register a car call on a floor that can be stopped (abstract excerpt)." An elevator operation device is disclosed.

JP2012-224435A Japanese Patent Laid-Open No. 5-330755

According to the technique at the time of opening in Patent Document 1, it is possible to detect a door open defect by a signal from an external sensor. Therefore, the door open defect can be detected regardless of the elevator hardware or protocol. However, the door open failure accompanied by traveling of the car, such as the operation of the other floor evacuation function disclosed in Patent Document 2, includes a state where the elevator car door is not opened at all. However, in such a situation, the technique disclosed in Patent Document 1 cannot be applied.

The present invention has been made in view of the above circumstances. An external sensor detects a door abnormality that accompanies traveling of a car regardless of the type of the door abnormality, and issues an alarm according to the detection result to an external device. Provide technology.

The present invention detects an abnormal door of an elevator having a function of another floor evacuation traveling to cause the car to travel to a predetermined floor when at least one of the elevator car door and the hall door has a door open failure. A door abnormality detection system for detecting the traveling state of the car and the opening/closing operation of the car door as detection information, and the door abnormality detection system based on the detection information. Determines whether or not has occurred, an abnormality determination unit that outputs a notification instruction according to the determination result, and generates a notification signal in accordance with the notification instruction output from the abnormality determination unit, to the external device The alarm generation unit for outputting, and the abnormality determination unit, based on the detection information, detects the door open failure, after the other floor evacuation travel performed by the door open failure occurred. When the occurrence of the door opening failure is repeated a predetermined number of times again, it is determined that the door abnormality has occurred.

Further, the present invention is an elevator system having a function of another floor evacuation traveling to cause the car to travel to another predetermined floor when a door open failure occurs in at least one of the car door and the hall door, A door abnormality detection device that detects a door abnormality of at least one of the car door and the hall door, the door abnormality detection device is provided in the car door, the traveling state of the car and the opening and closing operation of the car door And a detection device that detects as detection information, and based on the detection information, it is determined whether the door abnormality has occurred, and an abnormality determination unit that outputs a determination result, and the abnormality determination unit outputs An alarm generation unit that generates an alarm according to the determination result and outputs the alarm to an external device, the abnormality determination unit detects the door opening failure based on the detection information, and opens the door. It is characterized in that it is determined that the door abnormality has occurred when the door opening failure occurs again after the evacuation traveling on the other floor, which is executed due to the occurrence of the failure, for a predetermined number of times.

According to the present invention, an external sensor can detect a door abnormality that accompanies traveling of a car regardless of the type of the door abnormality, and can issue an alarm according to the detection result to an external device. The problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

It is the whole elevator system lineblock diagram concerning the embodiment of the present invention. It is an explanatory view for explaining arrangement of a biaxial acceleration sensor concerning an embodiment of the present invention. (A) is a functional block diagram of the detection result processing device according to the embodiment of the present invention, and (b) is a hardware configuration diagram of the detection result processing device according to the embodiment of the present invention. It is a functional block diagram of a monitoring center server concerning an embodiment of the present invention. 6 is a flowchart of an abnormality determination process performed by the abnormality determination unit according to the embodiment of the present invention. (A) is explanatory drawing for demonstrating an example of the data stored in the alerting|reporting database which concerns on embodiment of this invention, (b) is an example of the alerting|reporting signal which concerns on embodiment of this invention. It is an explanatory view for explaining. It is a flowchart of the abnormality determination processing by the abnormality determination unit of the modified example of the embodiment of the present invention.

In the door abnormality detection system of the present embodiment, an external device detects the traveling state of the car and the opening/closing operation of the car door, and provides information that can identify the abnormal state occurring in the door from the detection result. Report to an external device.

Prior to description of the door abnormality detection system of the present embodiment, an elevator system including an elevator to which the door abnormality detection system is applied will be described. Here, of the elevator system, only the configuration related to the present embodiment will be described.

FIG. 1 is an overall configuration diagram of an elevator system 900 according to this embodiment. As shown in the figure, the elevator system 900 of this embodiment includes an elevator 100, a door abnormality detection system 200, and a monitoring server 310.

The elevator 100 includes a car 111, a car door 112, a car call button 113, a counterweight 114, a hoist 115, a main rope 116, a hall door 117, a hall call button 118, and a hall 119. And an elevator control device 110. The hall door 117, the hall call button 118, and the hall 119 are provided on each floor of the building in which the elevator 100 is installed. In the present specification, both the car door 112 and the landing door 117 are collectively referred to as a door unless it is necessary to distinguish between them.

[Elevator control device]
The elevator control device 110 includes a traveling control unit 121, a door opening control unit 122, a door opening determination unit 123, an exit determination unit 124, and another floor evacuation processing unit 125.

The traveling control unit 121 causes the car 111 to travel toward the destination floor in response to a call from the car call button 113 and the hall call button 118. Specifically, the control signal is transmitted to the hoisting machine 115. The hoisting machine 115 drives the main rope 116 by increasing or decreasing the number of rotations according to this control signal. As a result, the car 111 and the counterweight 114, which are connected by the main rope 116, are lifted and stopped in a hoistway in a slanting manner.

Further, the traveling control unit 121 further performs a standard floor returning process of traveling the car 111 on a predetermined standard floor when the car is not used, that is, when the call does not occur for a predetermined period.

Upon reaching the destination floor, the door opening control unit 122 outputs a door opening command to the door motor attached to the car door 112. The door motor that receives the door opening command operates to open the car door 112 and the landing door 117 of the destination floor that moves in conjunction with the car door 112.

The door opening determination unit 123 determines whether or not the car door 112 and the hall door 117 are fully opened according to the door opening command. The determination is made by, for example, an output from a door switch or the like provided on the car door 112 or the like. When the door is not fully opened, a signal indicating a door open failure (door open failure signal) is output.

When the door-opening determination unit 123 outputs the door-opening failure signal, the exiting determination unit 124 determines whether or not a passenger in the car 111 has exited, and outputs the determination result. The passenger's disembarkation is detected by, for example, an output from a car load detection sensor or the like provided in the car 111.

The other-floor evacuation processing unit 125 performs the other-floor evacuation process for traveling the car 111 to a predetermined other floor (other-floor evacuation traveling) when door opening failure occurs and passengers cannot get off. The other-floor evacuation process is executed when the door-opening determination unit 123 outputs a door-opening failure signal and the alighting determination unit 124 outputs a determination result that the passenger is not alighted. In the present embodiment, the other floor evacuation processing unit 125 determines another floor (evacuation floor) to evacuate according to a predetermined rule, and sets the floor as the destination floor. The evacuation floor is, for example, the nearest floor of the destination floor when traveling in the traveling direction immediately before. The other floor evacuation process is performed a predetermined number of times.

In addition, when the target floor is newly set by the other floor evacuation process, the traveling control unit 121, the door opening control unit 122, the door opening determination unit 123, the exit determination unit 124, and the other floor evacuation processing unit 125. Respectively repeat the above processing.

[Door abnormality detection system]
The door abnormality detection system 200 of the present embodiment detects a door abnormality based on the detection information including the traveling state of the car 111 and the opening/closing operation of the car door 112. The door abnormality detection system 200 of this embodiment includes a detection device 210 and a detection result processing device 220.

[Detection device]
The detection device 210 detects the traveling state of the car 111 and the opening/closing operation of the car door 112. In this embodiment, a biaxial acceleration sensor is used as the detection device 210. Hereinafter, the biaxial acceleration sensor 210 will be described.

The biaxial acceleration sensor 210 is installed on the car door 112 as shown in FIG. Then, accelerations in two directions, that is, the opening/closing direction of the car door 112 and the traveling direction of the car 111 are detected.

Hereinafter, as shown in FIG. 2, a description will be given using a coordinate system in which the opening/closing direction of the car door 112 is the X axis, the traveling direction of the car 111 is the Y axis, and the direction orthogonal to the X axis and the Y axis is the Z axis. ..

The two-axis acceleration sensor 210 of the present embodiment detects an acceleration Ax in the X-axis direction that is the opening/closing direction of the car door 112 and an acceleration Ay in the Y-axis direction that is the traveling direction of the car 111, and the detection result processing device. Output to 220. The acceleration is detected at predetermined time intervals, for example.

[Detection result processing device]
The detection result processing device 220 analyzes the accelerations Ax and Ay transmitted from the biaxial acceleration sensor 210, and if there is a door abnormality and if there is a door abnormality, identifies the abnormal state. For example, the detection result processing device 220 analyzes each time it receives acceleration from the biaxial acceleration sensor 210.

In order to realize this, the detection result processing device 220 of the present embodiment, as shown in FIG. 3( a ), includes a storage processing unit 221, a determination value calculation unit 222, an abnormality determination unit 223, and a report generation unit. 224 and. Further, the detection result processing device 220 includes a detection result storage unit 231, a determination value storage unit 232, and a reporting database (DB) 233.

The storage processing unit 221 receives the accelerations Ax and Ay from the biaxial acceleration sensor 210, and stores them in the detection result storage unit 231 in association with the reception time.

The determination value calculation unit 222 performs mathematical processing on the accelerations Ax and Ay stored in the detection result storage unit 231, and opens and closes the car door 112 (car door speed) Vx and the traveling speed of the car 111 ( The car speed Vy, the opening/closing distance (car door distance) Lx of the car door 112, and the moving distance (car distance) Ly of the car 111 are calculated as the determination values. The calculated judgment value is stored in the judgment value storage unit 232. The determination value calculation unit 222, for example, performs calculation each time the accelerations Ax and Ay are newly stored in the detection result storage unit 231.

The car door distance Lx is calculated as a moving distance from a predetermined first reference position. In addition, the car distance Ly is calculated as a moving distance from a second predetermined reference position. The first reference position is, for example, the position of the biaxial acceleration sensor 210 when the car door 112 is completely closed. The second reference position is, for example, the position of the biaxial acceleration sensor 210 when the car 111 is at the bottom end of the hoistway.

The abnormality determination unit 223 determines the presence/absence of a door abnormality using the speed (Vx, Vy) and the distance (Lx, Ly) calculated by the determination value calculation unit 222. In the present embodiment, when the door does not fully open except for the reference floor return process even when the destination floor is reached, it is determined that a door open failure has occurred. When the door open failure occurs and the same door open failure does not disappear despite the evacuation traveling on the other floor for a predetermined number of times, it is determined that a door abnormality (open lock) has occurred. Door open failure and open lock include a state in which it is not opened at all (non-open) and a state in which it is slightly opened but not fully opened (half-open).

In the half-opened state, the door reversal function (ORS) at the time of overload operates, and the door-opened ORS operation occurs. The door open ORS operation is an operation of closing the door by reversing the door due to the overload of the door motor. Normally, when the door is open, the elevator control device 110 instructs the door motor to increase the torque to open the door. However, if the door sill groove is clogged with dust, for example, the door will not open any further. At this time, when the torque exceeds a certain level in a state where the door is not fully opened, the elevator control device 110 stops the operation of opening the car door 112 and issues an instruction to close the car door 112 once. This is the overload door reversal function. In this way, when the door is not opened halfway, the ORS operation during door opening occurs. Therefore, the door abnormality due to the half-open state is also referred to as the occurrence of open lock due to frequent occurrence of ORS operation when the door is open.

In the present embodiment, when the abnormality determination unit 223 determines that there is a door abnormality, the abnormality state of the door is a non-open open lock state in which the door is not opened at all, or an opening/closing operation is performed, but the door is fully opened. Specify whether or not it is in the half-open open lock state. Details of the determination processing by the abnormality determination unit 223 will be described later.

Further, when it is determined that there is a door abnormality, the abnormality determination unit 223 of the present embodiment issues a notification instruction including information that specifies the state of the door abnormality as a determination result. The notification instruction is output to the notification generation unit 224.

When the report generation unit 224 receives the report instruction from the abnormality determination unit 223, the report generation unit 224 generates a report signal according to the state of the door abnormality included in the report instruction and outputs it to the outside. In this embodiment, it outputs to the monitoring server 310. Information for identifying the detection result processing device 220 of the output source (transmission source) is added to the alarm signal.

In the present embodiment, for example, an alarm signal generated in advance is stored in the alarm database 233 in association with each door abnormality state. The report generation unit 224 refers to the report database 233 and generates a report signal.

The detection result processing device 220 is arranged, for example, on the ceiling of the car 111, in the machine room of the elevator 100, or the like. The detection result processing device 220 is connected to the biaxial acceleration sensor 210 wirelessly or by wire.

The detection result processing device 220 may be provided for each car 111, or one detection result processing device 220 may be provided for a plurality of cars 111 installed in the same building. Even if one car 111 is installed for a plurality of cars 111, the door abnormality is determined for each car 111.

As shown in FIG. 3B, the detection result processing device 220 includes a CPU 241, a memory 242, a storage device 243, an input/output interface 244, and a communication interface 245. Each function described above is realized by the CPU 241 loading a program stored in the storage device 243 in advance into the memory 242 and executing the program.

The detection result storage unit 231, the determination value storage unit 232, and the reporting database 233 are provided in the memory 242 or the storage device 243.

The biaxial acceleration sensor 210 is connected to the input/output interface 244, and the storage processing unit 221 receives the accelerations Ax and Ay via the input/output interface 244. Further, the report generation unit 224 outputs a report signal to the monitoring server 310 via the communication interface 245.

Monitoring server
The monitoring server 310 monitors the elevator 100. The monitoring server 310 is arranged, for example, in a remote monitoring center 300 or the like installed in a remote place apart from the building in which the elevator 100 is installed.

In the present embodiment, the monitoring server 310 receives an alert from the detection result processing device 220 and outputs it to a predetermined output destination. In order to realize this processing, the monitoring server 310, as shown in FIG. 4, a report receiving unit 311, a report distributing unit 312, a report transmitting unit 313, a report database (DB) 321, And a destination database (DB) 322.

The alert receiving unit 311 receives the alert signal transmitted from the detection result processing device 220. The content of the received alarm signal is restored according to the alarm database 321 and output to the alarm distribution unit 312.

The reporting database 321 has basically the same contents as the reporting database 233 included in the detection result processing device 220. By referring to the reporting database 321, the monitoring server 310 obtains the door abnormal state indicated by the received reporting signal.

The alert distribution unit 312 determines the output destination of the content of the alert signal according to the content of the alert signal received from the alert receiving unit 311 and the sender of the alert signal. In this embodiment, the transmission result is transmitted to the terminal of the maintenance office or the maintenance staff of the elevator 100 that detects the door abnormality by the detection result processing device 220. The transmission destination is stored in advance in the transmission destination database 322 in association with the detection result processing device 220 or the elevator 100.

The notification transmission unit 313 transmits the information specified by the notification signal to the destination according to the determination of the notification distribution unit 312.

Similar to the detection result processing device 220, the monitoring server 310 includes a CPU, a memory, a storage device, an input/output interface, and a communication interface. Each function described above is realized by the CPU loading a program previously stored in the storage device into the memory and executing the program. Further, the data used for the processing is stored in the storage device or the memory.

[Abnormality determination process]
Next, the abnormality determination processing by the abnormality determination unit 223 will be described. In the abnormality determination process of the present embodiment, the traveling state of the car 111 based on the determination values (car door speed Vx, car speed Vy, car door distance Lx, car distance Ly) calculated from the accelerations Ax and Ay. And determine the open/closed state of the door when the vehicle is stopped. Then, a state in which the door is not opened except for the reference floor restoration process even when the vehicle arrives at the destination floor is referred to as door opening failure. In the present embodiment, this door open failure is detected by distinguishing between the non-open state and the half-open state as described above.

FIG. 5 is a processing flow of the abnormality determination processing of this embodiment. The abnormality determination process starts when the car 111 stops traveling (ends traveling) on a predetermined floor. The abnormality determination unit 223 determines the end of the traveling based on, for example, the car speed Vy. That is, when the car speed Vy becomes 0 from a value other than 0, the abnormality determination unit 223 determines that the traveling has ended, and starts the following abnormality determination processing.

In addition, in the following process flow, if the door open failure continues, despite the fact that the door open failure has occurred three times and the other floors have been evacuated, a door error that requires notification is generated. I judge that I did.

The abnormality determination unit 223 determines whether or not there is an opening/closing operation of the car door 112 (step S1102). In this embodiment, the car door distance Lx is used for the determination. In the present embodiment, as described above, the position of the biaxial acceleration sensor 210 when the car door 112 is completely closed is the first reference position. Therefore, during the period T1, when the car door distance Lx is maintained at 0, it is determined that the car door 112 is not opened/closed. The period T1 is determined in advance and stored in the storage device or the like. When it is determined that there is no opening/closing operation, a condition that the car door speed Vx is 0 may be further added.

When it is determined in step S1102 that the car door 112 does not open/close (S1102; No), the abnormality determination unit 223 keeps the car 111 in the stopped (running) state for a predetermined period in this state. It is determined whether or not there is (step S1103). In the present embodiment, it is determined whether or not the state in which the car speed Vy is 0 continues for the period T2. T2 is determined in advance and stored in a storage device or the like.

When it is determined that the period T2 is continued (S1103; Yes), the abnormality determination unit 223 determines that the elevator control device 110 has performed the reference floor restoration process, determines that the process is normal (step S1104), and executes the process. finish.

On the other hand, in step S1103, when it is determined that the car 111 has started traveling before the period T2 has elapsed (S1103; No), the abnormality determination unit 223 determines that a non-opening door failure has occurred. Then, the counter that counts the number of occurrences of the non-open door failure is incremented by 1 (step S1105).

In the present embodiment, a door counter OLC and a floor counter OL(F) are provided as counters that count the number of times of non-opening door failures. The door counter OLC is a counter that counts the number of occurrences of the non-open door opening failure (first occurrence number) of the car 111 regardless of the floor. The floor counter OL(F) is a counter that counts the number of times (second occurrence number) of non-door opening failures in each floor F of the car 111. Here, F is a value indicating the floor. The current floor F is specified by the car distance Ly.

Here, the door counter OLC and the floor counter OL(F) of the floor F on which the car 111 is currently landing are each incremented by one.

After that, the abnormality determination unit 223 determines whether or not the value of the door counter OLC is larger than 2 (step S1106).

In step S1106, when it is larger than 2 (S1106; Yes), the non-door opening failure has occurred three times in succession. Therefore, the abnormality determination unit 223 determines that the door abnormality in the non-open open lock state has been detected, and outputs the notification instruction including the information specifying the state of the door abnormality to the notification generation unit 224 (step S1107). , The process ends.

In this embodiment, for example, information that indicates the relationship between the value of the door counter OLC and the value of the floor counter OL(F) is used as the information that identifies the state of each door abnormality. Here, OLC>2 is included in the notification instruction as the information.

In step S1106, when it is 2 or less (S1106; No), it is determined whether or not the value of the floor counter OL(F) of the current floor F is larger than 2 (step S1108).

In step S1108, when it is larger than 2 (S1108; Yes), the non-opening door failure itself does not occur continuously, but the non-opening door failure occurs three times in the floor F. Hereinafter, such a state is referred to as a state in which a sign of a door malfunction of the non-open open lock has occurred. The abnormality determination unit 223 determines that the sign of the door abnormality of the non-open open lock has been detected, and outputs an alarm instruction including information specifying the state of the door abnormality to the alarm generation unit 224 (step S1109), The process ends.

Here, OLC≦2 and OL(F)>2 are included in the notification instruction as the information. At this time, the notification instruction also includes information for identifying the floor in which the non-opening door failure is detected three times.

In step S1108, when it is 2 or less (S1108; No), the abnormality determination unit 223 determines that the non-open door opening defect has been detected (step S1110), and ends the process.

When it is determined in step S1102 that the car door 112 has the opening/closing operation (S1102; Yes), the abnormality determination unit 223 determines whether or not the car door 112 has been completely opened (fully opened) (step S1120). ). In the present embodiment, it is determined whether or not the car door distance Lx, which is the movement distance of the car door 112 from the first reference position, is a value LxMAX registered in advance. LxMAX is registered in the storage device 243 in advance as the position of the biaxial acceleration sensor 210 when fully opened.

In step S1120, when it is determined that the door is not fully opened (S1120; No), the abnormality determination unit 223 determines that the half-open door opening defect has occurred. Then, the counter that counts the number of times of the half-open door failure is incremented by 1 (step S1112). As described above, the door-opening ORS operation is occurring in the state where the half-open door opening failure occurs.

In the present embodiment, a door counter ORSC and a floor counter ORS(F) are provided as counters that count the number of occurrences of a half-open door failure. The door counter ORSC is a counter that counts the number of times (first occurrence number) of half-open door failures of the car 111 regardless of the floor. The floor counter ORS(F) is a counter that counts the number of times of occurrence of a half-open door failure in the floor F (second occurrence number) of the car 111.

Here, the door counter ORSC and the floor counter ORS(F) of the floor F on which the car 111 is currently landing are each incremented by one.

After that, the abnormality determination unit 223 determines whether or not the value of the door counter ORSC is greater than 2 (step S1113).

In step S1113, when it is larger than 2 (S1113; Yes), the half-open door opening failure has occurred three times or more in succession. Therefore, the abnormality determination unit 223 determines that the door abnormality in the half-open open-lock state has been detected, and outputs a notification instruction including information specifying the state of the door abnormality to the notification generation unit 224 (step S1114), The process ends. Here, ORSC>2 is included in the notification instruction as the information.

If it is 2 or less in step S1113 (S1113; No), it is determined whether or not the value of the floor counter ORS(F) of the current floor F is larger than 2 (step S1115).

In step S1115, when it is larger than 2 (S1115; Yes), the semi-open door failure itself does not occur continuously, but the semi-open door failure occurs three times in the floor F. Hereinafter, such a state will be referred to as a state in which a sign of a half-open open-lock door abnormality has occurred. The abnormality determination unit 223 determines that the sign of the door abnormality of the half-open open lock is detected, and outputs an alarm instruction including information for specifying the state of the door abnormality to the alarm generation unit 224 (step S1116), and the processing. To finish. Here, ORSC≦2, ORS(F)>2, and information specifying the floor F are included in the notification instruction as the information.

In step S1115, when it is 2 or less (S1115; N0), the abnormality determination unit 223 determines that the half-open door opening defect has been detected (step S1117), and ends the process.

If it is determined in step S1120 that it is fully opened (S1110; Yes), the abnormality determination unit 223 determines that it is operating normally (step S1121), and ends the process. At this time, the door counter OLC and the door counter ORSC and the floor counters OL(F) and ORS(F) of the current floor F are initialized.

For example, when the vehicle travels in a state where the value of these door counters OLC or ORS is other than 0, it is considered to be another floor evacuation traveling. This is because if the doors are normally opened and closed immediately after the evacuation run on the other floor and the passengers in the car 111 can get off the vehicle safely, there is no trapping and no notification is required.

The abnormality determination unit 223 of the present embodiment repeats the above process each time the traveling end of the car 111 is detected.

[Signal signal]
The report generation unit 224 generates a report signal according to the report instruction received from the abnormality determination unit 223 and outputs it to the monitoring server 310 of the remote monitoring center 300.

The generated alert signal is generated according to the data stored in the alert database 233. Here, an example of data stored in the reporting database 233 is shown in FIG.

As shown in the figure, in the reporting database 233, a reporting signal code 233a is stored for each piece of information 233b that identifies the abnormal state of the door.

When the notification instruction including the information 233b indicating that the non-open open-lock state is detected is received, "1" is extracted as the notification signal code 233a and a notification signal is generated.

Further, when the alerting signal including the information 233b that the non-open open lock sign is detected is received, "2" is extracted as the alerting signal code 233a and the alerting signal is generated. Further, at this time, information for specifying the floor is also included in the alarm signal.

When the notification instruction including the information 233b that the half-open open-lock state is detected is received, "3" is extracted as the notification signal code 233a and a notification signal is generated.

Further, when the alerting signal including the information 233b that the half-open open lock sign is detected is received, "4" is extracted as the alerting signal code 233a and the alerting signal is generated. Further, at this time, information for specifying the floor is also included in the alarm signal.

An example of the alarm signal 234 generated by the alarm generation unit 224 is shown in FIG. As shown in the figure, the alarm signal 234 includes a transmission source 234a that is information that specifies the detection result processing device 220 that is the transmission source, an alarm signal code 234b, and a floor 234c that is information that specifies a floor. With. When the alarm signal code 234b is "1" or "3", nothing is registered in the floor 234c.

As described above, the door abnormality detection system 200 according to the present embodiment is a two-axis detection device that is provided in the car door 112 and detects the traveling state of the car 111 and the opening/closing operation of the car door 112 as detection information. Based on the acceleration sensor 210 and the detection information, whether or not a door abnormality has occurred is determined, and when a door abnormality or a sign thereof has occurred, an abnormality determination unit 223 that outputs a warning instruction as a determination result. And an alarm generation unit 224 that generates an alarm signal 234 according to the determination result output from the abnormality determination unit 223 and outputs the alarm signal 234 to the monitoring server 310 that is an external device. At this time, the abnormality determination unit 223 detects the door opening defect based on the detection information, and the same door opening defect occurs again after the other floor retreat traveling that is executed due to the occurrence of the door opening defect. However, if it is repeated a predetermined number of times, it is determined that a door abnormality has occurred.

As described above, according to the present embodiment, the occurrence of the door abnormality is detected based on the detection information including the traveling state of the car 111 and the opening/closing operation of the car door 112. Therefore, it is possible to detect a door abnormality when the door is not opened at all.

The abnormality determination unit 223 determines that a door open failure has occurred when the car door 112 is not opened after the car 111 is stopped and the other floor evacuation travel is started within a predetermined period. Further, the abnormality determination unit 223 determines that the normal reference floor return operation is performed when the car door is not opened after the car 111 is stopped and the other floor evacuation traveling is not performed within a predetermined period. judge. Further, when the car door 112 does not fully open after the car 111 has stopped, the abnormality determination unit 223 determines that a door-opening failure has occurred due to frequent ORS operations during door-opening.

As described above, according to the present embodiment, the occurrence of the door opening failure is detected based on the detection information by the detection device capable of detecting the traveling state of the car 111 and the opening/closing operation of the car door 112. Therefore, as described above, it is possible to detect the door abnormality in the case where the door is not opened at all and the door is not opened, the door abnormality due to the frequent occurrence of the ORS operation at the time of door opening, and the reference floor returning operation. In this way, even a door abnormality that cannot be detected by the conventional external door abnormality detecting device can be detected.

Further, in the present embodiment, an alarm signal is generated according to the detected door abnormality state and output to the monitoring server 310. For example, a non-open open lock is detected, as a sign of the non-open open lock, an open lock is detected a predetermined number of times or more on a specific floor F, a half open open lock is detected, and a half open open lock is detected. As a sign, an alerting signal that can specify that the open lock has been detected at a specific floor F a predetermined number of times or more is generated and output.

The monitoring server 310 notifies the sales office or maintenance staff in charge of the abnormal door status included in the received alarm signal. Therefore, the maintenance staff or the like can grasp the details of the door abnormality by looking at the received information.

For example, when the maintenance staff obtains the information indicating that the sign of full open lock has been detected, it can be seen that the value of the door counter OLC is less than 3, but the value of the floor counter is 3 or more. .. Therefore, it is possible to recognize that there is a high risk that an abnormality occurs in a door peripheral device or an open lock occurs in a floor where the floor counter has a value of 3 or more. Further, since the maintenance personnel and the like can understand that the door opening failure occurs only in a specific floor, the door opening failure does not result from a failure of the car door 112 side such as the door motor, It can be determined that there is a high possibility that it is caused by the hall door 117 on the hall 119 side. The same applies to the case of a sign of a half open lock.

As described above, according to the present embodiment, since the alarm signal changes depending on the type and state of the door abnormality that has occurred, the maintenance personnel and the like can accurately grasp the occurrence state of the abnormality. As a result, necessary repair parts and the like can be reliably prepared and rushed to the site. That is, according to the present embodiment, it is possible to further assist the maintenance staff or the like in grasping the outline of the cause of the door opening failure. Thereby, quick maintenance can be promoted.

<Modification>
In the above step S1107, the door is not opened after the traveling of the car 111, and the situation has not been resolved even if the other floor evacuation traveling is performed twice. In such a case, it is considered that passengers are trapped in the car 111, or even if there are no people in the car 111, the elevator 100 is seriously damaged and cannot be used. Therefore, in this case, information indicating that the notification is highly urgent may be included in the notification signal.

Similarly, in the case of step S1114 described above, information indicating that the notification is highly urgent may be included in the notification signal.

Further, in the case of step S1109 or S1116, as described above, there is a high possibility that it is caused by the hall door 117 side, so that an abnormality has occurred in the door peripheral equipment of the floor, and the hall door 117 is focused. The warning signal may include the content instructing to check. In particular, in the case of step S1116, it is more likely that it is caused by the hall door 117 side due to the characteristics of the ORS operation when the door is open, so it is desirable to add the above contents to the alarm signal.

In the above-described embodiment, the abnormality determination unit 223 initializes the door counter OLC or ORSC when the normal operation is performed after the door open failure occurs and after the other floor retreat traveling, but the present invention is not limited to this. If the door counter OLC or ORSC is not initialized and a cumulative number of times have occurred, a door abnormality may be determined and an alarm may be issued.

FIG. 7 shows a flow of abnormality determination processing by the abnormality determination unit 223 in this case. Note that, also in the present modification, the abnormality determination process is started when the abnormality determination unit 223 detects the end of traveling of the car 111, as in the above embodiment. Further, the same portions as those in the abnormality determination processing of the above embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The abnormality determination unit 223 determines whether or not there is an opening/closing operation of the car door 112 (step S1102).

In step S1102, when it is determined that the car door 112 is not opened/closed (S1102; No), the abnormality determination unit 223 keeps the car 111 in the stopped (travel end) state for a predetermined period (T2) in this state. It is determined whether or not it continues (step S1103).

When it is determined that the period T2 is continued (S1103; Yes), the abnormality determination unit 223 determines that the elevator control device 110 has performed the reference floor restoration process, determines that the process is normal (step S1104), and executes the process. finish.

On the other hand, in step S1103, when it is determined that the car 111 has started traveling before the period T2 has elapsed (S1103; No), the abnormality determination unit 223 determines that a non-opening door failure has occurred. Then, the door counter OLC and the floor counter OL(F), which count the number of times the door-opening failure occurs, are incremented by 1 (step S1105).

After that, the abnormality determination unit 223 determines whether or not the value of the door counter OLC is larger than 2 (step S1106).

When it is larger than 2 in step S1106 (S1106; Yes), the abnormality determination unit 223 determines whether or not the value of OL(F) of the current floor is the same as the value of OLC (step S1201).

When it is different in step S1201 (S1201; No), OLC is larger than OL(F). That is, only the OLC is 3. Here, the abnormality determination unit 223 determines that the door abnormality in the first non-open open lock state has been detected. Then, a report instruction including information (first non-open OL detection) indicating that OLC>OL(F) is output to the report generation unit 224 (step S1204), and the process ends.

On the other hand, when it is the same in step S1201 (S1201; Yes), the abnormality determination unit 223 determines that the door abnormality in the second non-open open lock state has been detected. Then, the alerting instruction including the information indicating that OLC=OL(F) (second non-open OL detection) is output to the alerting generation unit 224 (step S1203), and the process is ended.

In step S1106, when it is 2 or less (S1106; No), the abnormality determination unit 223 determines that the non-open door opening defect has been detected (step S1202), and ends the process.

When it is determined in step S1102 that the car door 112 has the opening/closing operation (S1102; Yes), the abnormality determination unit 223 determines whether or not the car door 112 has been completely opened (fully opened) (step S1120). ).

In step S1120, when it is determined that the door is not fully opened (S1120; No), the abnormality determination unit 223 determines that the half-open door opening defect has occurred. Then, the door counter ORSC and the floor counter ORS(F), which count the number of occurrences of the half-open door opening failure, are each incremented by 1 (step S1112).

After that, the abnormality determination unit 223 determines whether or not the value of the door counter ORSC is greater than 2 (step S1113).

If it is greater than 2 in step S1113 (S1113; Yes), the abnormality determination unit 223 determines whether the value of ORS(F) is equal to the value of ORSC (step S1211).

In step S1211, if not equal (S1211; No), ORSC is larger than ORS(F). That is, only ORSC is 3. Here, the abnormality determination unit 223 determines that the door abnormality in the first half open lock state is detected. Then, the alerting instruction including the information (first half-open OL detection) meaning ORSC>ORS(F) is output to the alerting generation unit 224 (step S1214), and the process is ended.

On the other hand, when it is the same in step S1211, (S1201; Yes), the abnormality determination unit 223 determines that the door abnormality in the second half-open open lock state is detected. Then, an alarm issuing instruction including information (second half-open OL detection) indicating that ORSC=ORS(F) is output to the alarm generating unit 224 (step S1213), and the process is ended.

In step S1113, when the number is 2 or less (S1113; No), the abnormality determination unit 223 determines that the half-open door opening defect has been detected (step S1222), and ends the process.

If it is determined in step S1120 that it is fully opened (S1110; Yes), the abnormality determination unit 223 determines that it is operating normally (step S1121), and ends the process.

In this modification, each counter is initialized when, for example, the elevator control device 110 or a maintenance staff issues a traveling stop instruction for the car 111 and the car 111 is forcibly stopped.

The abnormality determination unit 223 of this modified example repeats the above-described processing each time the traveling end of the car 111 is detected.

Further, the report generation unit 224 of this modification example generates a report signal according to the report instruction received from the abnormality determination unit 223 and outputs it to the monitoring server 310. The reporting database 233 is prepared in advance in which the contents included in each reporting instruction are stored in the information 233b.

The maintenance staff who receives the notification of the door abnormality occurrence via the monitoring server 310 can grasp the outline of the door abnormality according to the content.

For example, when the information includes the first non-open open-lock state or the first half-open open-lock state, that is, OLC>OL(F) or ORSC>ORS(F). It can be seen that, even after the door open failure occurs, the same door open failure occurs even after performing another floor evacuation traveling and landing on the other floor. Therefore, the maintenance staff can determine that there is a high possibility that the door abnormality is caused by the car door 112.

On the other hand, when the second non-open open-lock state or the second half-open open-lock state is included, that is, information that means OLC=OL(F) or ORSC=ORS(F) is included It can be seen that when the other floor escape travel is performed, the door open defect is eliminated and the door open defect occurs only on a specific floor. Therefore, the maintenance personnel can determine that the door abnormality is highly likely to be caused by the landing door 117 of the elimination.

In addition, in the above-mentioned embodiment, both the non-opening and the half-opening have the counter for counting the occurrence of the door opening failure for each floor, but the counter for each floor may not be provided.

In this case, for example, in the process of the above embodiment, only the door counter OLC is incremented by 1 in step S1105. Then, in step S1106, when the value of the door counter OLC is less than 2, it is determined that the door open failure is detected.

Similarly, in the case of half-opening, only the door counter ORSC is incremented by 1 in step S1112. Then, in step S1113, if the door counter ORSC is less than 2, it is determined that the door is partially opened.

With such a configuration, when the event that the door does not open occurs using the detection result of the two-axis acceleration sensor 210 that is the external sensor, it is due to the return to the standard floor or the door is not open. It is possible to determine whether the door is open or the door is open halfway. Further, when the non-open door opening failure or the half-open door opening failure is repeated, it is possible to notify the maintenance staff of the state together with the occurrence of the door abnormality.

Therefore, the external sensor can detect a door abnormality that accompanies the traveling of the car 111 regardless of the type of the door abnormality, and can issue a warning according to the detection result to the monitoring server 310 that is an external device.

It should be noted that, in the above-described embodiment or modification, the alarm is not issued unless the same door-opening failure occurs a predetermined number of times (three times in the above example). However, it is not limited to this. It may be configured to issue an alarm if it occurs even once. After issuing the report once, the report process may be stopped, or the report may be continued for a predetermined number of times (for example, three times) until the door opening failure occurs. In this case, the number of occurrences, the value of the door counter, the value of the floor counter, etc. may be included in the alarm signal. In this case, the notification is a warning for preventing the occurrence of abnormality.

Further, in the above-described embodiment, when the determination result by the abnormality determination unit 223 is normal, the alarm is not issued, but the present invention is not limited to this. The information indicating normality may be transmitted to the monitoring server 310 of the remote monitoring center 300.

In the above embodiment, the case where one biaxial acceleration sensor 210 is used as a detection device that detects the traveling state of the car 111 and the opening/closing operation of the car door 112 has been described as an example. , But is not limited to this. For example, it may be realized by two sensors, a uniaxial acceleration sensor that detects the traveling state of the car 111 and a uniaxial acceleration sensor that detects the opening/closing operation of the car door 112. Further, it may not be the acceleration sensor. For example, it may be realized by a plurality of infrared sensors. The sensor type is not limited as long as it is a sensor that can detect the traveling state of the car 111 and the opening/closing operation of the car door 112.

It should be noted that in each of the above-described embodiments, the functions of the detection result processing device 220 and the monitoring server 310 are realized by the CPU executing programs, but the functions are not limited to this. For example, all or some of the functions may be realized by hardware such as an ASIC (Application Specific Integrated Circuit) and an FPGA (field-programmable gate array).

Further, the present invention is not limited to the above-described embodiment, and various modifications are included. For example, the above-described embodiment is for explaining the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to one including all the configurations described in the above-described embodiment.

Further, in each drawing, control lines and information lines that are considered to be necessary for description are described, and not all control lines and information lines necessary for products are necessarily described. In an actual product, it may be considered that almost all the components are connected to each other.

Further, the present invention can take other various application examples and modifications without departing from the gist of the present invention described in the claims.

100: elevator, 110: elevator control device, 111: car, 112: car door, 113: car call button, 114: counterweight, 115: hoisting machine, 116: main rope, 117: landing door, 118: Hall call button, 119: hall, 121: running control unit, 122: door opening control unit, 123: door opening determining unit, 124: getting off determination unit, 125: other floor evacuation processing unit,
200: Door abnormality detection system, 210: Detection device (biaxial acceleration sensor), 220: Detection result processing device, 221: Storage processing unit, 222: Determination value calculation unit, 223: Abnormality determination unit, 224: Warning generation unit , 231: detection result storage unit, 232: judgment value storage unit, 233: report database, 233a: report signal code, 233b: information, 234: report signal, 234a: sender, 234b: report signal code, 234c: floor, 241: CPU, 242: memory, 243: storage device, 244: input/output interface, 245: communication interface,
300: remote monitoring center, 310: monitoring server, 311: report receiving unit, 312: report distributing unit, 313: report sending unit, 321: report database, 322: destination database,
900: elevator system, Ax: acceleration, Ay: acceleration, Lx: car door distance, Ly: car distance, Vx: car door speed, Vy: car speed

Claims (7)

If at least one of the elevator car door and the hall door has a door open failure, the elevator car is equipped with a function to run the car to another floor that has been determined in advance. A system,
A detection device which is provided on the car door and detects the traveling state of the car and the opening/closing operation of the car door as detection information,
Based on the detection information, to determine whether the door abnormality has occurred, and an abnormality determination unit that outputs a report instruction according to the determination result,
An alarm generation unit that generates an alarm signal according to the alarm instruction output from the abnormality determination unit and outputs the alarm signal to an external device,
The abnormality determination unit detects the door opening failure based on the detection information, and the door opening failure may occur again after the other floor retreat traveling that is executed due to the occurrence of the door opening failure. A door abnormality detection system, characterized in that, when it is repeated a predetermined number of times, it is determined that the door abnormality has occurred. The door abnormality detection system according to claim 1, wherein
The abnormality determination unit, if the car door does not open after the car has stopped, and if the other floor evacuation travel is started within a predetermined period, the car door does not open at all A door abnormality detection system characterized by determining that it has occurred. The door abnormality detection system according to claim 2,
The abnormality determination unit determines that the normal reference floor return operation is performed when the car door is not opened after the car is stopped and the other floor evacuation travel is not performed within a predetermined period. A door abnormality detection system characterized in that The door abnormality detection system according to claim 3,
A door abnormality detection system, wherein the abnormality determination unit determines that the door opening failure has occurred due to frequent ORS operations at door opening when the car door is not fully opened after the car is stopped. The door abnormality detection system according to claim 4,
The abnormality determination unit counts the first occurrence number that is the occurrence number of the door opening failure for each car, and counts the second occurrence number that is the occurrence number of the door opening failure for each floor, A door abnormality detection system, wherein the alarm instruction includes information specifying a relationship between the first number of occurrences and the second number of occurrences. The door abnormality detection system according to any one of claims 1 to 5,
The door abnormality detection system, wherein the detection device is a biaxial acceleration sensor that detects accelerations in two directions of an opening/closing direction of the car door and a traveling direction of the car. An elevator system having a function of another floor evacuation traveling for causing a car to travel to another floor predetermined when a door open failure occurs in at least one of the car door and the hall door,
A door abnormality detection device that detects a door abnormality of at least one of the car door and the landing door, and issues an alarm,
The door abnormality detection device,
A detection device which is provided on the car door and detects the traveling state of the car and the opening/closing operation of the car door as detection information,
Based on the detection information, to determine whether the door abnormality has occurred, and an abnormality determination unit that outputs the determination result,
An alarm generation unit that generates an alarm according to the determination result output from the abnormality determination unit and outputs the alarm to an external device,
The abnormality determination unit detects the door opening failure based on the detection information, and the door opening failure may occur again after the other floor retreat traveling that is executed due to the occurrence of the door opening failure. An elevator system characterized by determining that the door abnormality has occurred when it is repeated a predetermined number of times.

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