JP6935360B2 - Elevator operation monitoring system - Google Patents

Description

The present invention relates to an elevator operation monitoring system, and is suitable for application to, for example, an elevator equipped with at least three types of acceleration sensors.

In a general elevator, an abnormality in the elevator is detected based on the control signal of the elevator. In addition, for older elevators that cannot acquire elevator control signals, various efforts are being made to detect elevator abnormalities.

In recent years, a technique has been disclosed in which an acceleration sensor is installed in an elevator car and the cause of an abnormality in the opening / closing operation of a door is identified based on the output from the acceleration sensor (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-222438

However, the technique described in Patent Document 1 has a problem that an abnormality in an elevator cannot be sufficiently detected.

The present invention has been made in consideration of the above points, and an object of the present invention is to propose an operation monitoring system capable of detecting an abnormality of an elevator by using an acceleration sensor.

In order to solve this problem, the present invention is an elevator operation monitoring system provided with at least three types of acceleration sensors, wherein the acceleration sensor detects acceleration in the moving direction of the car installed in the car. A directional acceleration sensor, a horizontal acceleration sensor installed on the car door that detects acceleration in the opening / closing direction of the car door, and a landing perpendicular to the opening / closing direction of the car door installed on the car door. Obtained from the car monitoring unit that detects the movement of the car based on the information obtained from the vertical acceleration sensor, including the landing direction acceleration sensor that detects the acceleration in the direction, and the horizontal acceleration sensor. A door monitoring unit that detects the opening and closing of the car door based on the obtained information and detects the vibration of the car door in the landing direction based on the information obtained from the acceleration sensor in the landing direction, and the vertical acceleration. The sensor detects acceleration equal to or higher than a predetermined value, the car monitoring unit determines that the car is in an emergency stop, and the horizontal acceleration sensor detects acceleration equal to or higher than a predetermined value in the direction in which the car door opens. When the door monitoring unit determines that the car door has opened, the external reporting unit includes an external reporting unit that transmits information indicating an abnormality of the elevator to the monitoring center, and the external reporting unit detects the abnormality of the elevator. When transmitting to the monitoring center, when attaching information indicating that the acceleration sensor in the direction of the landing has detected an acceleration equal to or higher than a predetermined value, it indicates that the car door may have been opened by the passenger in the car. When attaching information, including information, indicating that the accelerometer in the direction of the landing does not detect acceleration above a predetermined value, the device that prevents the car door from opening freely may be defective. Included information indicating gender .

According to the above configuration, it is possible to grasp the movement of the car, the opening / closing of the car door, and the vibration of the car door in the landing direction based on the information obtained from the acceleration sensor, so that, for example, a predetermined abnormality of the elevator can be detected. Become.

According to the present invention, the maintainability of the elevator can be improved.

It is a figure which shows an example of the structure which concerns on the operation monitoring system of the elevator by 1st Embodiment. It is a schematic diagram of the elevator by 1st Embodiment. It is a figure which shows an example of the structure which concerns on the acceleration sensor, the car condition monitoring device, and the external reporting device by 1st Embodiment. It is a figure which shows an example of the processing procedure which concerns on the abnormality monitoring processing by 1st Embodiment.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

(1) First Embodiment In FIG. 1, 1 indicates an elevator operation monitoring system according to the first embodiment as a whole. In the elevator operation monitoring system 1, for example, when an elevator is urgently stopped, an abnormality in the elevator can be detected and the cause of the abnormality can be identified. The operation monitoring system 1 of the elevator will be described.

In the elevator operation monitoring system 1, as shown in FIG. 1, the car 2 and the balance weight 3 are connected by the main rope 4, and the main rope 4 is driven by driving the hoisting machine 5 around which the main rope 4 is wound. The car 2 and the weight 3 are vertically moved up and down in the hoistway 6 via a rope. Further, the car 2 is provided with a tail code 7, and power and control signals are exchanged via the tail code 7.

Further, as shown in FIG. 2, at least three types of acceleration sensors 9 are provided in the car door 8 of the car 2. The acceleration sensor 9 includes at least a horizontal (X-axis direction) acceleration sensor that detects acceleration in the opening / closing direction of the car door 8 and a vertical direction (Y-axis direction) that detects acceleration in the moving direction (elevating direction) of the car 2. ), And an acceleration sensor in the landing direction that detects acceleration in the landing direction (Z-axis direction) perpendicular to the opening / closing direction of the car door 8. The acceleration sensor 9 constantly transmits the detected acceleration as acceleration data to the car condition monitoring device 10 (for example, every minute time).

The car condition monitoring device 10 records the acceleration data based on the acceleration data transmitted from the acceleration sensor 9, and whether the elevator state (whether the car 2 is moving or stopped, or whether the car door 8 is open or closed) is recorded. , Whether or not the car door 8 has been pushed by the passenger, etc.) is detected, and the detection result is transmitted to the external notification device 11.

The external reporting device 11 selects the alert content based on the detection result transmitted from the car condition monitoring device 10, and transmits the alert content to the monitoring center 13 through the public line 12.

The monitoring center 13 transmits the content of the notification transmitted from the external reporting unit 111 through the public line 12 to the sales office 14 in charge.

Subsequently, the details of the acceleration sensor 9, the car condition monitoring device 10, and the external reporting device 11 will be described with reference to FIG.

The acceleration sensor 9 detects the acceleration in the opening / closing direction using the horizontal acceleration sensor 91, and transmits the acceleration in the opening / closing direction to the opening / closing acceleration recording unit 1011 using the opening / closing acceleration transmitting unit 92. Further, the acceleration sensor 9 detects the acceleration in the moving direction by using the acceleration sensor 93 in the vertical direction, and transmits the acceleration in the moving direction to the moving acceleration recording unit 1013 by using the moving acceleration transmitting unit 94. Further, the acceleration sensor 9 detects the acceleration in the landing direction by using the acceleration sensor 95 in the landing direction, and transmits the acceleration in the landing direction to the landing acceleration recording unit 1015 by using the landing acceleration transmitting unit 96.

The car status monitoring device 10 is an example of a computer (computer), such as a laptop computer, a mobile terminal, etc., and is not shown. CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), It includes an HDD (Hard Disk Drive), a communication device, and the like.

The functions of the car status monitoring device 10 (acceleration recording unit 101, monitoring control unit 102, etc.) may be realized, for example, by the CPU reading the program stored in the ROM into the RAM and executing it (software). It may be realized by hardware such as a dedicated circuit, or it may be realized by combining software and hardware. Further, a part of the functions of the car condition monitoring device 10 may be realized by another computer capable of communicating with the car state monitoring device 10.

The acceleration recording unit 101 records the acceleration transmitted from the acceleration sensor 9 by using the open / close acceleration recording unit 1011, the moving acceleration recording unit 1013, and the landing acceleration recording unit 1015. Further, the acceleration recording unit 101 transmits the acceleration transmitted from the acceleration sensor 9 to the monitoring control unit 102 by using the open / close acceleration transmission unit 1012, the moving acceleration transmission unit 1014, and the landing acceleration transmission unit 1016.

In the monitoring control unit 102, the car monitoring unit 1021 and the door monitoring unit 1022 detect the state of the elevator based on the acceleration transmitted from the acceleration recording unit 101, and the detection result is reported to the outside using the detection result transmission unit 1023. It is transmitted to the device 11.

The car monitoring unit 1021 detects the movement of the car 2 based on the information (for example, the acceleration in the moving direction) obtained from the acceleration sensor 93 in the vertical direction, for example. The door monitoring unit 1022 detects the opening / closing of the car door 8 based on, for example, information obtained from the horizontal acceleration sensor 91 (for example, acceleration in the opening / closing direction). Further, the door monitoring unit 1022 detects the vibration of the car door 8 in the landing direction based on the information (acceleration in the landing direction) obtained from the acceleration sensor 95 in the landing direction, for example.

The external reporting device 11 is an example of a computer, which is a notebook computer, a mobile terminal, a control panel, etc., and includes a CPU, a RAM, a ROM, an HDD, a communication device, etc., which are not shown.

The function of the external notification device 11 (for example, the external notification unit 111) may be realized by, for example, the CPU reading the program stored in the ROM into the RAM and executing it (software), or a dedicated circuit or the like. It may be realized by hardware, or it may be realized by combining software and hardware. Further, a part of the functions of the external reporting device 11 may be realized by another computer capable of communicating with the external reporting device 11.

The external reporting unit 111 selects the alert content based on the detection result transmitted from the monitoring control unit 102, and transmits the alert content to the monitoring center 13 through the public line 12.

For example, in the external reporting unit 111, the vertical acceleration sensor 93 detects the acceleration in the moving direction equal to or higher than a predetermined value, the car monitoring unit 1021 determines that the car 2 is in an emergency stop, and the horizontal acceleration sensor 91. When the acceleration in the direction in which the car door 8 is opened is detected and the door monitoring unit 1022 determines that the car door 8 is opened, the abnormality of the elevator is transmitted to the monitoring center 13.

Subsequently, the process of monitoring the abnormality of the elevator (abnormality monitoring process) in the elevator operation monitoring system 1 will be described with reference to FIG. FIG. 4 is a diagram showing an example of a processing procedure related to the abnormality monitoring process.

In step S11, the car monitoring unit 1021 determines whether or not the car 2 is running. When the vertical acceleration sensor 93 detects the acceleration Ay in the moving direction of the car 2 and determines that the moving speed Vy is not zero "0" (the car 2 is running), the car monitoring unit 1021 causes the elevator to move. After confirming that the operation has started, the process is transferred to step S12, and when it is determined that the moving speed Vy is zero "0" (the car 2 is stopped), the process is transferred to step S11.

Here, the moving speed Vy is calculated from the integrated value of the acceleration Ay in the moving direction of the car 2. For example, it can be calculated based on the following equation on the assumption that a constant acceleration motion is performed.
Vy = Ay · t (Vy: moving speed, Ay: acceleration in the moving direction, t: minute time)

In step S12, the car monitoring unit 1021 determines whether or not the car 2 has stopped urgently. When the car monitoring unit 1021 detects an acceleration Ay equal to or higher than a predetermined value, the car monitoring unit 1021 determines that the car 2 is in an emergency stop, shifts the process to step S13, and the vertical acceleration sensor 93 moves. When an acceleration Ay less than a predetermined value is detected, it is determined that the car 2 is operating normally, and the process is moved to step S11.

In step S13, the door monitoring unit 1022 determines whether or not the car door 8 has been opened when stopped. When the horizontal acceleration sensor 91 detects the acceleration Ax in the direction in which the car door 8 opens at a value equal to or higher than a predetermined value, the door monitoring unit 1022 determines that the car door 8 has opened, and shifts the process to step S14. When the horizontal acceleration sensor 91 detects the acceleration Ax in the direction in which the car door 8 opens, which is less than a predetermined value, it is determined that the car door 8 is not open, and the process proceeds to step S15.

The configuration is not limited to the configuration in which whether or not the car door 8 is opened is determined by using the acceleration Ax, and for example, the mileage XX of the car door 8 may be used to determine. In this case, the mileage XX of the car door 8 can be calculated based on the following equation on the assumption that the same acceleration motion as the moving speed Vy is performed.
Xx = 1 / 2Ax · t ² (Xx: mileage of the car door 8, Ax: acceleration in the opening / closing direction of the car door 8, t: minute time)

In step S14, the external reporting unit 111 transmits (issues) information indicating an abnormality in the elevator (such as that the car 2 has stopped urgently, that the car 2 has stopped urgently because the car door 8 has opened, etc.). Report). According to this process, the sales office 14 in charge can grasp the abnormality of the elevator, so that the restoration work of the elevator can be performed quickly.

More specifically, the processes of steps S141 to S143 may be performed.

In step S141, the door monitoring unit 1022 determines whether or not the passenger has opened the car door 8 (whether or not the door has been opened by the passenger's mischief). When the acceleration sensor in the direction of the landing detects an acceleration Az equal to or higher than a predetermined value and determines that the passenger has opened the car door 8, the door monitoring unit 1022 determines that the door has been opened due to the passenger's mischief, and steps. The process is transferred to S142, and when the acceleration sensor in the direction of the landing detects an acceleration Az less than a predetermined value and determines that the passenger has not pryed the car door 8, the car door 8 is prevented from opening freely. It is determined that the car door 8 has been opened due to a defect in the device (defective lock of the car door 8), and the process proceeds to step S143.

In step S142, the external reporting unit 111 transmits to the monitoring center 13 with information indicating that the acceleration Az in the landing direction is detected by the acceleration sensor 95 in the landing direction, which is equal to or higher than a predetermined value.

In step S143, the external reporting unit 111 transmits to the monitoring center 13 with information indicating that the acceleration Az in the landing direction is not detected from the acceleration sensor 95 in the landing direction, which is equal to or higher than a predetermined value.

In step S142, the external reporting unit 111 includes information indicating the possibility that the car door 8 has been opened by the passenger in the attached information, and in step S143, the car door 8 is freely opened in the attached information. It may include information indicating the possibility of a defective device. By including such information, the sales office 14 in charge can easily grasp the cause of the emergency stop due to the opening of the door.

In step S15, the external reporting unit 111 transmits to the monitoring center 13 that the emergency stop has occurred due to a cause other than the car door 8.

As described above, the elevator operation monitoring system 1 can grasp the movement of the car 2, the opening and closing of the car door 8, and the vibration of the car door 8 in the landing direction based on the information obtained from the acceleration sensor 9. According to such a configuration, due to a predetermined abnormality of the elevator (emergency stop of the car 2, emergency stop of the car 2 due to a cause other than the car door 8, emergency stop of the car 2 due to poor maintenance of the car door 8, and prying open of the car door 8). (Emergency stop of car 2 etc.) can be detected.

Further, based on the acceleration in the moving direction of the car 2 and the acceleration in the opening / closing direction of the car door 8, it is possible to identify whether or not the cause of the emergency stop of the car 2 is due to the opening of the door. According to such a configuration, the sales office 14 in charge can identify whether the cause of the emergency stop of the car 2 is the opening of the car door 8 or the cause other than the car door 8, so that the elevator can be restored. Work can be done quickly.

Further, when the cause of the emergency stop of the car 2 is the door opening, it can be determined whether the cause is the passenger prying open the car door 8 or the poor maintenance of the car door 8. According to this configuration, the sales office 14 in charge can grasp the cause of the door opening, so that the elevator restoration work can be performed more quickly.

According to the above-described configuration, the maintainability of the elevator can be improved.

(2) Other Embodiments In the above-described embodiment, the case where the present invention is applied to the elevator operation monitoring system 1 has been described, but the present invention is not limited to this, and various other embodiments are described. It can be widely applied to systems, devices and methods.

Further, in the above-described embodiment, the case where the three types of acceleration sensors 9 are realized by one device has been described, but the present invention is not limited to this, and the three types of acceleration sensors 9 are realized by two devices. It may be realized or it may be realized by three devices. That is, the vertical acceleration sensor that detects the acceleration in the moving direction of the car 2 is installed at an arbitrary place (the car door 8 may be the car door 8 or another place) of the car 2. .. The horizontal acceleration sensor that detects the acceleration in the opening / closing direction of the car door 8 is installed at an arbitrary position on the car door 8. The landing direction acceleration sensor that detects the acceleration in the landing direction perpendicular to the opening / closing direction of the car door 8 is installed at an arbitrary position on the car door 8.

Further, in the above-described embodiment, the case where the acceleration sensor 9 includes the open / close acceleration transmission unit 92, the moving acceleration transmission unit 94, and the landing acceleration transmission unit 96 has been described, but the present invention is not limited to this, and the acceleration sensor 9 is not limited to this. May include an acceleration transmitter that simultaneously transmits accelerations in the X-axis, Y-axis, and Z-axis directions.

Further, in the above-described embodiment, the case where the monitoring control unit 102 is provided in the car condition monitoring device 10 has been described, but the present invention is not limited to this, and the monitoring control unit 102 is provided in the external reporting device 11. You may.

Further, in the above-described embodiment, the case where the external reporting unit 111 is provided in the external reporting device 11 has been described, but the present invention is not limited to this, and the external reporting unit 111 is provided in the car condition monitoring device 10. You may.

In addition, the information such as programs, tables, and files that realize each function in the above description is a memory, a hard disk, a storage device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD. Can be placed in.

Further, the above-described configuration may be appropriately changed, rearranged, combined, or omitted as long as it does not exceed the gist of the present invention.

1 ... Elevator operation monitoring system, 2 ... Car, 8 ... Car door, 9 ... Accelerometer, 91 ... Horizontal acceleration sensor, 93 ... Vertical acceleration sensor, 95 ... Landing direction Accelerometer, 111 ... External reporting unit, 1021 ... Car monitoring unit, 1022 ... Door monitoring unit.

Claims (1)

An elevator operation monitoring system equipped with at least three types of accelerometers.
The acceleration sensor includes a vertical acceleration sensor that detects acceleration in the moving direction of the car installed in the car and a horizontal acceleration sensor that detects acceleration in the opening / closing direction of the car door installed in the car door. Includes an acceleration sensor and an acceleration sensor in the landing direction that detects acceleration in the landing direction perpendicular to the opening / closing direction of the car door installed on the car door.
A car monitoring unit that detects the movement of the car based on the information obtained from the vertical acceleration sensor, and
Door monitoring that detects the opening and closing of the car door based on the information obtained from the horizontal acceleration sensor and detects the vibration of the car door in the landing direction based on the information obtained from the landing direction acceleration sensor. and parts,
The vertical acceleration sensor detects acceleration equal to or higher than a predetermined value, the car monitoring unit determines that the car is in an emergency stop, and the horizontal acceleration sensor detects acceleration equal to or higher than a predetermined value. The door monitoring unit is provided with an external notification unit that detects the acceleration in the opening direction and transmits information indicating an abnormality of the elevator to the monitoring center when the door monitoring unit determines that the car door has opened.
When the external reporting unit transmits an abnormality of the elevator to the monitoring center, the external reporting unit attaches information indicating that the acceleration sensor in the direction of the landing has detected an acceleration equal to or higher than a predetermined value, and when the passenger in the car is attached. When attaching information indicating that the acceleration sensor in the direction of the landing does not detect acceleration exceeding a predetermined value, including information indicating the possibility that the car door has been opened, the car door is free. Include information that indicates a possible device failure, to prevent it from opening
Elevators operation monitoring system.

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