JP2021084767A - Safety management system of elevator - Google Patents

Abstract

To provide a safety management system of an elevator capable of improving safety when a maintenance person works on a cage irrespective of whether the elevator can perform communication control.SOLUTION: A safety management system of the present invention comprises an accelerator sensor 1 installed on a cage 4, a measurement processing apparatus 2, and a maintenance terminal 9 maintained by a maintenance person. The accelerator sensor 1 detects acceleration and vibration of the cage 4. The measurement processing apparatus 2 comprises a cage position determining part 51 which receives acceleration information from the acceleration sensor 1, a vibration determining part 52 which receives vibration information from the acceleration sensor 1, a speed determining part 53 which determines whether the cage 4 runs at speed of a specified value or more, and an alert output part 54 which outputs an alert to the maintenance terminal 9 when the cage position determining part 51 detects that the cage 4 stops at the position other than a door zone, the vibration determining part 52 determines that the maintenance person rides on the cage 4, and the speed determining part 53 determines that the cage 4 runs at speed of the specified value or more.SELECTED DRAWING: Figure 7

Description

The present invention relates to a safety management system used for maintenance work of elevator maintenance personnel.

The elevator is provided with two operating methods: high-speed traveling for transporting passengers and low-speed traveling used for maintenance work of elevator equipment. Elevator maintenance personnel (Field Engineer, also referred to as "FE") should prevent the elevator from running at high speed when performing maintenance work in dangerous places such as in the pit of the elevator or on the car. Work is performed after switching the elevator operation method to low-speed operation with a switch or the like. However, if the maintenance staff accidentally switches the driving method to high-speed driving during work, the elevator will suddenly run at high speed when the maintenance staff is on the car (upper part of the car) or in the pit, which is extremely difficult. It is dangerous to.

Patent Document 1 describes a driving device that prevents the car from starting even if a maintenance worker mistakenly switches the driving method to high-speed driving. The driving device described in Patent Document 1 includes a human body detection sensor (for example, an infrared sensor) on the car, and when the human body detection sensor detects a human body, the high-speed driving circuit is invalidated and the car is not activated.

Japanese Unexamined Patent Publication No. 7-137947

Some elevators communicate with the remote monitoring center and can be operated remotely from the remote monitoring center. In an elevator capable of such communication control, when the elevator maintenance staff (FE) switches the operation method to high-speed driving while working on the car, for the safety of FE, the elevator is remotely controlled to low-speed driving. You can switch. However, if the FE is working in an elevator that cannot control communication, such as an elevator made by another company or an old elevator, the elevator cannot be operated remotely, and the FE must perform the work on the car in a dangerous state. become.

Further, in an elevator that cannot control communication, it is difficult to notify the remote monitoring center or the maintenance work manager that a danger has occurred in the FE. For example, when the FE is working on a car in an elevator equipped with the driving device described in Patent Document 1, the remote monitoring center automatically detects that the driving device has disabled the high-speed driving circuit. It is difficult to notify the administrator of maintenance work.

An object of the present invention is to provide an elevator safety management system capable of improving the safety when a maintenance person works on a car regardless of whether or not the elevator can control communication. is there.

The elevator safety management system according to the present invention includes an acceleration sensor installed in the car, a measurement processing device, and a maintenance terminal held by a maintenance person. The acceleration sensor detects the acceleration when the car moves and the vibration of the car. The measurement processing device includes a determination unit. The determination unit receives information about the acceleration from the acceleration sensor, receives information about the vibration from the car position determination unit that detects that the car has stopped at a position other than the door zone, and the acceleration sensor. Occasionally, the car is set to a predetermined value or more by using the vibration determination unit that determines that the maintenance worker has got on the car and the moving speed of the car obtained from the acceleration. The speed determination unit that determines whether or not the vehicle has traveled at a speed and the car position determination unit detect that the vehicle has stopped at a position other than the door zone, and the vibration determination unit causes the maintenance personnel to use the vehicle. It is provided with an alert output unit that outputs an alert to the maintenance terminal when it is determined that the vehicle is on top and the speed determination unit determines that the vehicle has traveled at a speed equal to or higher than a predetermined predetermined value.

According to the present invention, it is possible to provide an elevator safety management system capable of improving the safety when a maintenance person works on a car regardless of whether or not the elevator can control communication. ..

It is a schematic diagram which shows the structure of the elevator which installed the safety management system according to Example 1 of this invention. It is a schematic diagram which shows the structure of the safety management system according to Example 1 of this invention. It is a flowchart which shows an example of the flow of the process executed by the safety management system according to Example 1 of this invention. It is a flowchart which shows an example of the flow of the high-speed running monitoring process executed by the safety management system according to Example 1 of this invention. It is a figure which shows the procedure when a maintenance person gets on a car, and is the figure which shows the state which the maintenance person who has a maintenance terminal is waiting on the floor different from the floor where a car is located. It is a figure which shows the procedure when a maintenance person gets on a car, and is the figure which shows the state which the elevator is running at a low speed. It is a figure which shows the procedure when a maintenance person gets on a car, and is the figure which shows the state which the elevator has finished low-speed running, and the car is stopped. It is a figure which shows the procedure when a maintenance person gets on a car, and is the figure which shows the state which a maintenance person got on a car. It is a figure which shows an example of the alert which an output part of a maintenance terminal outputs. It is a figure which shows an example of the message displayed on the screen of a maintenance terminal when a maintenance person operates a button. It is a schematic diagram which shows the structure of the safety management system according to Example 2 of this invention.

The elevator safety management system according to the present invention is provided with an acceleration sensor provided in the elevator car and a communication device provided on the car (upper part of the car 4), and an elevator maintenance person (FE) gets on and off the car. Is detected. By detecting the vibration of the car as well as the communication state between the communication device and the maintenance terminal of the FE, it is possible to reliably detect getting on and off the car of the FE.

The elevator safety management system according to the present invention can alert the maintenance terminal of the FE when the elevator runs at high speed while the FE is working on the car, and can also remotely monitor the elevator. It is possible to notify the outside of the elevator such as the center.

The elevator safety management system according to the present invention can detect getting on and off the FE car regardless of whether or not the elevator can control communication by the remote monitoring center. If the elevator runs at high speed while the FE is working on the car, an alert is output to the maintenance terminal of the FE to notify the FE that dangerous work is being performed, thus suppressing the dangerous work of the FE. , The safety when the FE works on the car can be improved. In addition, the communication history between the communication device and the maintenance terminal is transmitted to the outside (for example, the remote monitoring center or the maintenance work manager), which is useful for FE work management and prevention of dangerous work, so that the FE works on the car. It is possible to further improve the safety when doing so.

Hereinafter, the elevator safety management system according to the embodiment of the present invention will be described with reference to the drawings. The high-speed traveling means that the car travels at a speed during normal operation in which passengers are carried, and the car travels at a speed equal to or higher than a predetermined value. The low-speed running means that the car runs at a speed slower than the high-speed running used during maintenance work, and the car runs at a speed less than a predetermined value.

FIG. 1 is a schematic view showing a configuration of an elevator in which a safety management system according to a first embodiment of the present invention is installed.

The elevator includes a car 4, a balance weight 8, a control device 6, and a hoisting machine 5. The car 4 and the balance weight 8 are connected by a main rope 7 and move in the hoistway. The control device 6 controls the elevator. The hoisting machine 5 raises and lowers and stops the car 4 and the balance weight 8 by driving the main rope 7 by increasing or decreasing the rotation speed based on the control signal from the control device 6. The hoisting machine 5 and the control device 6 are installed in the machine room 11.

The safety management system according to this embodiment is installed in an elevator and includes an acceleration sensor 1, a measurement processing device 2, a communication device 3, and a maintenance terminal 9.

The acceleration sensor 1 is installed in the car 4, and constantly measures the acceleration A in the moving direction of the car 4. The acceleration sensor 1 can detect the vibration of the car 4.

The measurement processing device 2 is installed in the car 4 or the machine room 11 and can receive the measured value of the acceleration sensor 1. In the example of FIG. 1, the measurement processing device 2 is installed in the car 4.

The communication device 3 is installed on the upper part (on the car) of the car 4.

The maintenance terminal 9 is a terminal used for elevator maintenance work, and is possessed by an elevator maintenance worker (FE) who performs maintenance work on the car. A maintenance program is installed in the maintenance terminal 9, and short-range wireless communication with the communication device 3 and wireless communication with the remote monitoring center 10 are possible.

The elevator may be capable of communication control from the remote monitoring center 10, or may not be capable of communication control from the remote monitoring center 10.

The remote monitoring center 10 is installed outside the elevator and can communicate with the safety management system according to the present embodiment, specifically, the communication device 3 and the maintenance terminal 9. Further, the remote monitoring center 10 can communicate with the elevator and control the elevator by remote control if the communication control of the elevator is possible.

FIG. 2 is a schematic diagram showing the configuration of the safety management system according to this embodiment. As described above, the safety management system according to the present embodiment includes an acceleration sensor 1, a measurement processing device 2, a communication device 3, and a maintenance terminal 9 possessed by the FE.

The measurement processing device 2 includes a measurement value storage unit 21, a measurement value processing unit 22, a determination unit 23, and a communication control unit 24. The measurement processing device 2 can communicate with the acceleration sensor 1 and the communication device 3.

The measured value storage unit 21 stores the acceleration A in the moving direction of the car 4 measured by the acceleration sensor 1 and the moving time of the car 4.

The measurement value processing unit 22 performs mathematical processing on the acceleration A and the movement time stored in the measurement value storage unit 21, and calculates the movement speed V of the car 4 and the movement distance L of the car 4.

The determination unit 23 uses the acceleration A stored in the measurement value storage unit 21, the movement speed V calculated by the measurement value processing unit 22, and information about the connection between the communication device 3 and the maintenance terminal 9, and the elevator is slow. It determines whether or not the vehicle is running, and whether or not the vehicle has been boarded or disembarked. Getting on and off the car means that the FE gets on the car and the FE gets off the car.

The communication control unit 24 controls communication between the communication device 3 and the maintenance terminal 9, and communication between the communication device 3 and the remote monitoring center 10. For example, when the communication control unit 24 determines that the determination unit 23 needs to detect whether or not there is a change in the connection state (communication state) between the communication device 3 and the maintenance terminal 9, the communication device 3 is notified. A command is sent to detect whether or not there has been a change in the connection state with the maintenance terminal 9. The communication control unit 24 can also issue a command to the communication device 3 to transmit a signal to the remote monitoring center 10.

The communication device 3 includes a short-range communication unit 31 and a communication unit 32. The communication device 3 can communicate with the measurement processing device 2, the maintenance terminal 9, and the remote monitoring center 10. The communication device 3 performs communication processing between the measurement processing device 2 and the maintenance terminal 9, and between the measurement processing device 2 and the remote monitoring center 10.

The short-range communication unit 31 executes communication between the communication device 3 and the maintenance terminal 9. Further, the short-range communication unit 31 detects, for example, whether or not there is a change in the connection state (communication state) between the communication device 3 and the maintenance terminal 9 when receiving a command from the communication control unit 24, and the detection result. Is transmitted to the communication control unit 24.

The communication unit 32 executes communication between the communication device 3 and the remote monitoring center 10. For example, the communication unit 32 transmits a signal to the remote monitoring center 10 when receiving a command from the communication control unit 24, or receives a command from the remote monitoring center 10 and transmits a signal to the measurement processing device 2.

The communication performed between the acceleration sensor 1, the measurement processing device 2, and the communication device 3 may be wired communication or wireless communication.

The maintenance terminal 9 includes an output unit 19 that outputs an alert. The output unit 19 may include, for example, one or more of a speaker, a vibrator, and a screen.

The safety management system according to this embodiment has the above configuration, detects getting on and off the car using the acceleration sensor 1, the communication device 3, and the maintenance terminal 9, and determines the safety when the FE works on the car. Improve.

Here, a general procedure when the FE gets on and off the car during on-site work will be briefly described. In the following, as an example, the procedure for getting the FE on the car will be described.

5A-5D are diagrams showing general procedures when the FE gets on the car during field work.

FIG. 5A is a diagram showing a state in which the FE having the maintenance terminal 9 is waiting on a floor different from the floor on which the car 4 is located. The FE is waiting for the car 4 to arrive in order to get on and off the car. Another FE is in the car 4.

FIG. 5B is a diagram showing a state in which the elevator is traveling at a low speed. Car 4 is moving at low speed and heading to the floor where the FE is waiting.

FIG. 5C is a diagram showing a state in which the elevator has finished running at low speed and the car 4 is stopped. When the car 4 reaches a position where the FE can get on the car (a position other than the door zone), the car 4 stops moving.

FIG. 5D is a diagram showing a state in which the FE is on the car. After the car 4 is stopped, the FE opens the landing door and gets on the car.

FIG. 3 is a flowchart showing an example of the flow of processing executed by the safety management system according to the present embodiment. Hereinafter, the process executed by the safety management system according to the present embodiment will be described with reference to the flowchart of FIG.

In S1, the determination unit 23 of the measurement processing device 2 determines whether or not the elevator is traveling at a low speed by using the moving speed V of the car 4. When the moving speed V of the car 4 is not 0 (zero) and is less than a predetermined value, the determination unit 23 determines that the elevator is traveling at a low speed.

In S2, the determination unit 23 receives from the acceleration sensor 1 whether or not the car 4 is stopped at a position other than the door zone after the elevator finishes the low-speed running and the car 4 is stopped. The determination is made using the information about the acceleration A of the car 4 and the information from the sensor that detects the position of the car 4. The door zone is a position where the car 4 stops during normal traveling, and is a range in which the position of the door of the car 4 and the position of the door of the landing coincide with each other.

In S3, the determination unit 23 determines whether or not the acceleration sensor 1 has detected the vibration of the car 4. When the acceleration sensor 1 detects the vibration of the car 4 while the car 4 is stopped, the determination unit 23 determines that the car has been put on and off.

In S4, the determination unit 23 determines that the car has been boarded and disembarked, and therefore determines that it is necessary to detect whether or not there is a change in the connection state (communication state) between the communication device 3 and the maintenance terminal 9. To do. The communication control unit 24 sends a command to the communication device 3 to detect whether or not there is a change in the connection state with the maintenance terminal 9. The communication device 3 detects whether or not there is a change in the connection state with the maintenance terminal 9, and transmits the detection result to the measurement processing device 2.

The change in the connection state between the communication device 3 and the maintenance terminal 9 includes the change from the state in which the communication device 3 and the maintenance terminal 9 are disconnected to the state in which the communication device 3 and the maintenance terminal 9 are connected, and the communication device 3 and the maintenance terminal 9. There is a change from a connected state to a disconnected state. Further, the connection state between the communication device 3 and the maintenance terminal 9 does not change, and the communication device 3 and the maintenance terminal 9 remain disconnected, or the communication device 3 and the maintenance terminal 9 are connected. It may remain in the state of being.

In S5, the determination unit 23 determines whether or not the FE is on the car. If the connection state between the communication device 3 and the maintenance terminal 9 changes from disconnection to connection, the determination unit 23 determines that the FE is on the car. If there is a change from disconnection to connection, proceed to S6.

In S6, the determination unit 23 collates the GPS information of the maintenance terminal 9 or the position information of the maintenance terminal 9 with the work schedule of the FE registered in the remote monitoring center 10, and the FE executes (or executes). ) Determine if the work is scheduled. The work schedule of the FE is received by the communication unit 32 of the communication device 3 from the remote monitoring center 10 and transmitted to the measurement processing device 2. If the work to be carried out by the FE is not planned, the process proceeds to S7. If the work to be carried out by the FE is planned, the process proceeds to S8.

In S7, the communication control unit 24 instructs the communication unit 32 to send a signal to the remote monitoring center 10. When the remote monitoring center 10 receives this signal from the communication device 3, it notifies the maintenance work manager that the FE is performing the unscheduled work.

In S8, the determination unit 23 determines whether or not the remote monitoring center 10 can control the communication of the elevator in which the FE performs the work (the elevator in which the safety management system according to the present embodiment is installed). Whether or not the remote monitoring center 10 can control the communication of the elevator is input to the measurement processing device 2 in advance. If the remote monitoring center 10 cannot control the communication of the elevator, the process proceeds to S9, and if possible, the process proceeds to S10.

In S9, the measurement processing device 2 performs high-speed running monitoring processing. The high-speed running monitoring process will be described with reference to FIG.

FIG. 4 is a flowchart showing an example of the flow of high-speed driving monitoring processing executed by the safety management system according to the present embodiment.

In S41, the determination unit 23 of the measurement processing device 2 determines whether or not the elevator is traveling at high speed by using the moving speed V of the car 4. When the car 4 is traveling at a speed equal to or higher than a predetermined value, the determination unit 23 determines that the elevator is traveling at a high speed, and determines that the elevator is traveling at a high speed to the maintenance terminal 9 via the communication device 3. A warning alert is output (S42).

S42 is a process when it is determined that the elevator is traveling at high speed. The maintenance terminal 9 of the FE working on the car outputs an alert alert that the elevator is traveling at high speed by the output unit 19. The communication device 3 may also output this alert for alerting. This alert can be output as, for example, one or more of sounds, vibrations, and messages.

FIG. 6A is a diagram showing an example of an alert output by the output unit 19 of the maintenance terminal 9. In the example shown in FIG. 6A, the output unit 19 includes a speaker, a vibrator, and a screen, and the alert is a message displayed on the screen of the maintenance terminal 9 and a sound and vibration emitted by the maintenance terminal 9. Sound and vibration may not stop while the message is displayed. The message is when the content of dangerous work 41 (in this embodiment, the elevator is running at high speed when the FE is working on the car) and when the determination unit 23 determines that the elevator is running at high speed. The moving speed of the car 4 is 42.

The maintenance terminal 9 can also display a button 43 on the screen, which is operated when the FE confirms the alert. The maintenance terminal 9 can also display a message as shown in FIG. 6B on the screen when the FE operates by sliding or tapping the button 43 downward.

FIG. 6B is a diagram showing an example of a message displayed on the screen of the maintenance terminal 9 when the FE operates the button 43. On the screen of the output unit 19 of the maintenance terminal 9, for example, an accident case or a caution word 44 related to dangerous work is displayed. If the maintenance terminal 9 can communicate with the terminal owned by the maintenance work administrator, the maintenance terminal 9 can also display a button 45 for talking to the administrator on the screen. The name of the administrator may be displayed together with the button 45. When the FE operates the button 45, the maintenance terminal 9 communicates with the terminal owned by the administrator. The sound and vibration of the alert may be stopped when the maintenance terminal 9 communicates with the administrator's terminal.

In S43, the communication unit 32 of the communication device 3 transmits a notification to the remote monitoring center 10 notifying that a dangerous work has occurred that the elevator is traveling at high speed while the FE is working on the car. The remote monitoring center 10 notifies the maintenance work manager that such dangerous work has occurred.

This completes the description of the high-speed running monitoring process shown in FIG. 4, and returns to the description of FIG.

S10 is a process when the remote monitoring center 10 can control the communication of the elevator. The communication unit 32 of the communication device 3 transmits a command to the remote monitoring center 10 prohibiting the high-speed running of the elevator. Upon receiving this command, the remote monitoring center 10 controls the elevator to prohibit high-speed running, and controls the elevator so that it can only run at low speed. Further, the remote monitoring center 10 transmits a signal to the communication device 3 and notifies the measurement processing device 2 that the elevator is prohibited from traveling at high speed.

In S11, the measurement processing device 2 notifies the maintenance terminal 9 of the FE working on the car via the communication device 3 that the elevator is prohibited from traveling at high speed. The remote monitoring center 10 may notify the maintenance terminal 9 that the elevator is prohibited from traveling at high speed. The maintenance terminal 9 outputs the reception of this notification as one or more of, for example, a sound, a vibration, and a message by the output unit 19.

S12 is a process in S5 when there is no change in the connection state between the communication device 3 and the maintenance terminal 9 from disconnection to connection. The communication device 3 continues to detect whether or not there is a change in the connection state with the maintenance terminal 9, and transmits the detection result to the measurement processing device 2. If there is a change in the connection state between the communication device 3 and the maintenance terminal 9 from connection to disconnection, the process proceeds to S13. If there is no change in the connection state between the communication device 3 and the maintenance terminal 9 from connection to disconnection, the process proceeds to S18.

In S13, the determination unit 23 determines that the FE has descended from the car if the connection between the communication device 3 and the maintenance terminal 9 is disconnected even after a sufficient time has elapsed from the processing of S12. This sufficient time can be arbitrarily determined in advance.

In S14, the determination unit 23 determines whether or not the remote monitoring center 10 can control the communication of the elevator in which the safety management system according to the present embodiment is installed. If the remote monitoring center 10 cannot control the communication of the elevator, the process proceeds to S15, and if possible, the process proceeds to S16.

At S15, the measurement processing device 2 ends the above-mentioned high-speed running monitoring process (FIG. 4).

S16 is a process when the remote monitoring center 10 can control the communication of the elevator. The communication unit 32 of the communication device 3 transmits a command to the remote monitoring center 10 to allow the elevator to travel at high speed. Upon receiving this command, the remote monitoring center 10 controls the elevator to allow the elevator to travel at high speed, and controls the elevator to travel at high speed. Further, the remote monitoring center 10 transmits a signal to the communication device 3 and notifies the measurement processing device 2 that the elevator is permitted to travel at high speed.

In S17, the measurement processing device 2 notifies the maintenance terminal 9 of the FE working on the car via the communication device 3 that the elevator can travel at high speed. The remote monitoring center 10 may notify the maintenance terminal 9 that the elevator can travel at high speed. The maintenance terminal 9 outputs the reception of this notification as one or more of, for example, a sound, a vibration, and a message by the output unit 19.

S18 is a process in S12 when there is no change in the connection state between the communication device 3 and the maintenance terminal 9 from connection to disconnection. In this case, since no change occurred in the connection state between the communication device 3 and the maintenance terminal 9 in S5 and S12, the determination unit 23 determines that the car boarding / alighting did not occur.

The processing flow shown in FIGS. 3 and 4 is an example of the processing flow executed by the safety management system according to the present embodiment. In this example, when the determination unit 23 detects the high-speed travel of the elevator, the maintenance terminal 9 held by the FE working on the car outputs a warning alert (S42 in FIG. 4). Generally, the maintenance work is performed by the FE on the car and the FE in the car as shown in FIGS. 5A to 5D. Therefore, in S41 of FIG. 4, when the car 4 is traveling at a speed equal to or higher than a predetermined predetermined value, the determination unit 23 has the FE in the car via the communication device 3. The maintenance terminal 9 is also made to output a warning alert to notify the FE in the car that the FE in the car is dangerous. Then, in S42, the maintenance terminal 9 owned by the FE in the car outputs a warning alert that the FE in the car is dangerous. Since the FE in the car is easier to operate for avoiding danger such as emergency stop than the FE in the car, when the alert for alerting is output to the maintenance terminal 9, the operation for avoiding danger is immediately performed. Can be executed.

The safety management system according to this embodiment has the above configuration, detects that the FE is working on the car, and outputs an alert or performs maintenance work when the elevator is running at high speed. By notifying the administrator or the remote monitoring center 10, or by prohibiting the elevator from traveling at high speed, it is possible to improve the safety when the FE works on the car.

The elevator safety management system according to the second embodiment of the present invention will be described. Hereinafter, the configuration of the safety management system according to the present embodiment, which is different from the safety management system according to the first embodiment, will be mainly described.

FIG. 7 is a schematic diagram showing the configuration of the safety management system according to this embodiment. The safety management system according to the present embodiment has the same configuration as the safety management system according to the first embodiment, but the determination unit 23 of the measurement processing device 2 includes a car position determination unit 51, a vibration determination unit 52, and a speed determination unit. It differs from the safety management system according to the first embodiment in that 53 and the alert output unit 54 are provided.

As described in the first embodiment, the acceleration sensor 1 installed in the car 4 detects the acceleration when the car 4 moves and the vibration of the car 4. The maintenance terminal 9 is held in the FE.

The car position determination unit 51 informs about the acceleration A of the car 4 received from the acceleration sensor 1 whether or not the car 4 is stopped at a position other than the door zone, that is, the process shown in S2 of FIG. And the information from the sensor that detects the position of the car 4 is used to execute the determination process. By executing this process, the car position determination unit 51 detects that the car 4 has stopped at a position other than the door zone.

When the vibration determination unit 52 receives information about the vibration of the car 4 from the acceleration sensor 1, it determines that the FE is on the car 4. More specifically, when the vibration determination unit 52 receives from the acceleration sensor 1 information that a predetermined vibration has been generated as the vibration generated when the FE gets on the car 4, the FE has the car. It is determined that the vehicle is on top of 4.

The speed determination unit 53 uses the moving speed V of the car 4 obtained by the measurement value processing unit 22 of the measurement processing device 2 to determine whether or not the car 4 has traveled at a speed equal to or higher than a predetermined predetermined value. judge. The speed determination unit 53 determines that the elevator is traveling at high speed when the car 4 is traveling at a speed equal to or higher than a predetermined value.

The alert output unit 54 outputs a warning alert that the elevator is traveling at high speed to the maintenance terminal 9 held by the FE. In addition, the alert output unit 54 can also send a notification to the remote monitoring center 10 to notify the occurrence of dangerous work.

In the safety management system according to the present embodiment, the car position determination unit 51 detects that the car 4 has stopped at a position other than the door zone, and the vibration determination unit 52 determines that the FE is on the car 4 and determines the speed. When the determination unit 53 determines that the car 4 has moved beyond a predetermined speed, the alert output unit 54 is a maintenance terminal because the elevator is traveling at high speed while the FE is working on the car. Output an alert to 9. The measurement processing device 2 can notify the FE working on the car that there is a danger that the elevator is traveling at high speed by outputting an alert.

In addition, the alert output unit 54 can also send a notification to the remote monitoring center 10 informing that a dangerous work has occurred in which the elevator is traveling at high speed while the FE is working on the car. Upon receiving this notification, the remote monitoring center 10 notifies the maintenance work manager that dangerous work has occurred.

The safety management system according to this embodiment detects that the FE is working on the car, and when the elevator is traveling at high speed, outputs an alert or sends an alert to the maintenance work manager or the remote monitoring center 10. By notifying, it is possible to improve the safety when the FE works on the car.

The present invention is not limited to the above embodiment, and various modifications are possible. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to the embodiment including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment. It is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to delete a part of the configurations of each embodiment and add / replace other configurations.

1 ... Accelerometer, 2 ... Measurement processing device, 3 ... Communication device, 4 ... Car, 5 ... Hoisting machine, 6 ... Control device, 7 ... Main rope, 8 ... Balance weight, 9 ... Maintenance terminal, 10 ... Remote monitoring center, 11 ... Machine room, 19 ... Output unit, 21 ... Measurement value storage unit, 22 ... Measurement value processing unit, 23 ... Judgment unit, 24 ... Communication control unit, 31 ... Short-range communication unit, 32 ... Communication unit , 41 ... Dangerous work content, 42 ... Car movement speed, 43 ... Button, 44 ... Accident case or caution wording, 45 ... Button, 51 ... Car position determination unit, 52 ... Vibration determination unit, 53 ... Speed determination Department, 54 ... Alert output unit.

Claims (5)

In an elevator safety management system equipped with an accelerometer installed in a car, a measurement processing device, and a maintenance terminal held by maintenance personnel.
The acceleration sensor detects the acceleration when the car moves and the vibration of the car.
The measurement processing device includes a determination unit.
The determination unit
A car position determination unit that receives information about the acceleration from the acceleration sensor and detects that the car has stopped at a position other than the door zone.
When the information about the vibration is received from the acceleration sensor, the vibration determination unit that determines that the maintenance worker has got on the car and the vibration determination unit.
Using the moving speed of the car obtained from the acceleration, a speed determination unit that determines whether or not the car has traveled at a speed equal to or higher than a predetermined value.
The car position determination unit detects that the car has stopped at a position other than the door zone, the vibration determination unit determines that the maintenance worker has boarded the car, and the speed determination unit determines that the car has been placed on the car. When it is determined that the vehicle has traveled at a speed equal to or higher than the predetermined value, an alert output unit that outputs an alert to the maintenance terminal and an alert output unit.
Elevator safety management system characterized by being equipped with. In the elevator safety management system according to claim 1,
It is installed on the upper part of the car and is equipped with a communication device capable of communicating with the measurement processing device and the maintenance terminal.
The maintenance terminal includes an output unit and has an output unit.
In the determination unit of the measurement processing device, after the car has stopped at a position other than the door zone, the acceleration sensor detects the vibration of the car, and the connection state between the communication device and the maintenance terminal. If there is a change from disconnection to connection, it is determined that the maintenance personnel has got on the upper part of the car.
When the maintenance worker determines that the car is on the upper part of the car, the determination unit of the measurement processing device determines whether or not the car is traveling at a speed equal to or higher than a predetermined value. Is configured to
The maintenance terminal is an elevator safety management system in which the output unit outputs an alert when the car is traveling at a speed equal to or higher than the specified value. In the elevator safety management system according to claim 2.
The communication device can communicate with the remote monitoring center and can communicate with the remote monitoring center.
The communication device is an elevator safety management system that transmits a notification to the remote monitoring center when the car is traveling at a speed equal to or higher than the specified value. In the elevator safety management system according to claim 2.
The maintenance terminal has a screen for the output unit.
The alert is an elevator safety management system, which is a message displayed on the screen of the maintenance terminal. In the elevator safety management system according to claim 2.
The communication device can communicate with a remote monitoring center capable of controlling communication of the elevator.
When the determination unit of the measurement processing device determines that the maintenance worker has got on the upper part of the car, the communication device travels at a speed equal to or higher than a predetermined value for the car. An elevator safety management system that sends a command prohibiting the operation to the remote monitoring center.

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