JP7161464B2 - Elevator safety management system - Google Patents

Description

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

Elevators are provided with two operating modes: high-speed running for carrying passengers and low-speed running for maintenance work on elevator equipment. Elevator maintenance personnel (Field Engineers, hereinafter also referred to as "FE") shall, when performing maintenance work in dangerous locations such as elevator pits or on top of elevator cars, Work will be done after switching the elevator operation mode to low speed using a switch, etc. However, if maintenance personnel accidentally switch the operation mode to high-speed operation during work, the elevator will suddenly run at high speed while maintenance personnel are on the car (above the car) or in the pit, causing an emergency. dangerous to

Patent Literature 1 describes an operating device that prevents the car from starting even if a maintenance worker erroneously switches the operation mode to high-speed operation. The driving device described in Patent Document 1 has a human body detection sensor (for example, an infrared sensor) on the car, and when the human body detection sensor detects a human body, it disables the high-speed driving circuit and does not start the car.

JP-A-7-137947

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

In addition, in an elevator incapable of communication control, it is difficult to notify the remote monitoring center or the manager of maintenance work that a danger has occurred in the FE. For example, when the FE is working on the car in an elevator equipped with the operation device described in Patent Document 1, the remote monitoring center automatically detects that the operation device has disabled the high-speed operation circuit. It is difficult to notify the manager of maintenance work.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator safety management system capable of improving safety when maintenance personnel work on a car regardless of whether the elevator is capable of communication control. be.

An elevator safety management system according to the present invention includes an acceleration sensor installed in a car, a measurement processing device, and a maintenance terminal held by a maintenance worker. The acceleration sensor detects acceleration when the car moves and vibration of the car. The measurement processing device includes a determination unit. The determination unit receives information about the acceleration from the acceleration sensor, and receives information about the vibration from the acceleration sensor, and a car position determination unit that detects that the car stops at a position other than a door zone. When the car is above a predetermined specified value using the vibration determination unit that determines that the maintenance worker has stepped on the car and the moving speed of the car obtained from the acceleration, The car position determination unit detects that the car has stopped at a position other than the door zone, and the vibration determination unit detects whether the maintenance worker has moved the car. and an alert output part for outputting an alert to the maintenance terminal when it is determined that the car is ridden and the speed determination part determines that the car travels at a speed equal to or higher than the predetermined specified value.

ADVANTAGE OF THE INVENTION According to the present invention, it is possible to provide an elevator safety management system that can improve safety when maintenance personnel work on a car regardless of whether the elevator is capable of communication control. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the structure of the elevator in which the safety management system by Example 1 of this invention was installed. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the structure of the safety management system by Example 1 of this invention. 4 is a flow chart showing an example of the flow of processing executed by the safety management system according to Embodiment 1 of the present invention; 4 is a flow chart showing an example of the flow of high-speed travel monitoring processing executed by the safety management system according to the first embodiment of the present invention; FIG. 10 is a diagram showing a procedure for a maintenance worker to get on the car, and a diagram showing a state in which the maintenance worker with the maintenance terminal is waiting on a floor different from the floor on which the car is located. FIG. 4 is a diagram showing a procedure when maintenance personnel get on the car, and showing a state in which the elevator is traveling at a low speed; FIG. 10 is a diagram showing a procedure when maintenance personnel get on the car, and shows a state in which the elevator has finished running at low speed and the car is stopped. FIG. 10 is a diagram showing a procedure when maintenance personnel get on the car, and shows a state in which maintenance personnel get on the car. FIG. It is a figure which shows an example of the alert which the output part of a maintenance terminal outputs. FIG. 10 is a diagram showing an example of a message displayed on the screen of the maintenance terminal when a maintenance person operates a button; It is a schematic diagram which shows the structure of the safety management system by Example 2 of this invention.

The elevator safety management system according to the present invention includes an acceleration sensor provided in the car of the elevator and a communication device provided on the car (upper part of the car 4). to detect 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 the FE getting on and off the car.

In the elevator safety management system according to the present invention, when the elevator runs at high speed while the FE is working on the car, an alert can be issued to the maintenance terminal of the FE to call attention, and remote monitoring is possible. It is possible to notify the outside of the elevator such as the center.

The elevator safety management system according to the present invention is capable of detecting FE getting on and off the car regardless of whether the elevator is capable of communication control by the remote monitoring center. When 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, notifying the FE of dangerous work, thereby preventing dangerous work by the FE. , FE can improve safety when working on the car. In addition, by transmitting the communication history between the communication device and the maintenance terminal to the outside (for example, a remote monitoring center or a maintenance work manager) and using it for FE work management and prevention of dangerous work, the FE can work on the car. It is possible to further improve the safety when

An elevator safety management system according to an embodiment of the present invention will be described below with reference to the drawings. Note that high-speed travel means that the car travels at a speed during normal operation for carrying passengers, and that the car travels at a speed equal to or higher than a predetermined specified value. Low-speed travel means that the car travels at a speed slower than high-speed travel, which is used during maintenance work, and that the car travels at a speed less than a predetermined specified value.

FIG. 1 is a schematic diagram showing the configuration of an elevator installed with a safety management system according to Embodiment 1 of the present invention.

The elevator comprises a car 4 , a counterweight 8 , a controller 6 and a hoist 5 . The car 4 and the counterweight 8 are connected by a main rope 7 and move in the hoistway. A control device 6 controls the elevator. The hoisting machine 5 drives the main rope 7 by increasing or decreasing the number of revolutions based on a control signal from the control device 6 , thereby raising or lowering the car 4 and the counterweight 8 . 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 vibrations of the car 4 .

The measurement processing device 2 is installed in the car 4 or the machine room 11 and can receive the measurement 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 above the car 4 (on the car).

The maintenance terminal 9 is a terminal used for elevator maintenance work, and held by elevator maintenance personnel (FE) who perform maintenance work on the car. A maintenance program is installed on 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 or may not be controlled by communication from the remote monitoring center 10 .

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

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 this embodiment includes the acceleration sensor 1, the measurement processing device 2, the communication device 3, and the 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 measured value processing unit 22 performs mathematical processing on the acceleration A and the travel time stored in the measured value storage unit 21 to calculate the travel speed V of the car 4 and the travel distance L of the car 4 .

The determination unit 23 uses the acceleration A stored in the measured value storage unit 21, the moving speed V calculated by the measured value processing unit 22, information about the connection between the communication device 3 and the maintenance terminal 9, and the like to determine whether the elevator is moving at a low speed. It is determined whether or not the vehicle is running, and whether or not the passenger has gotten on or off the car. 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 determination unit 23 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, the communication control unit 24 causes the communication device 3 to A command is sent to detect whether or not there is 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 section 31 and a communication section 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, for example, upon receiving a command from the communication control unit 24, the short-range communication unit 31 detects whether or not there is a change in the connection state (communication state) between the communication device 3 and the maintenance terminal 9, and 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 .

Communication 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 has an output unit 19 that outputs an alert. Output unit 19 may comprise, for example, one or more of a speaker, a vibrator, and a screen.

The safety management system according to the present embodiment has the configuration described above, and uses the acceleration sensor 1, the communication device 3, and the maintenance terminal 9 to detect getting on and off the car, and to check the safety of the FE working on the car. Improve.

Here, a general procedure for the FE to get on and off the car during field work will be briefly described. Below, as an example, the procedure when the FE gets on the car will be described.

Figures 5A-5D show the general procedure when the FE gets on the car during field work.

FIG. 5A is a diagram showing a state in which the FE with 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 arrival of the car 4 in order to get on and off the car. Note that another FE is riding in the car 4 .

FIG. 5B is a diagram showing a state in which the elevator is running at low speed. Car 4 is moving slowly towards 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 has stopped. The car 4 stops moving when it reaches a position (a position other than the door zone) where the FE can get on the car.

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

FIG. 3 is a flow chart showing an example of the flow of processing executed by the safety management system according to this embodiment. Processing executed by the safety management system according to the present embodiment will be described below with reference to the flowchart of FIG.

In S<b>1 , the determination unit 23 of the measurement processing device 2 determines whether or not the elevator is traveling at a low speed using the moving speed V of the car 4 . The determination unit 23 determines that the elevator is traveling at a low speed when the moving speed V of the car 4 is not 0 (zero) and is less than a predetermined specified value.

In S2, after the elevator finishes running at low speed and the car 4 stops, the determination unit 23 determines whether or not the car 4 is stopped in a position other than the door zone. 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 running, and is a range in which the positions of the doors of the car 4 and the doors of the landing coincide with each other.

In S<b>3 , the determination unit 23 determines whether or not the acceleration sensor 1 has detected 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 passenger gets on and off the car.

In S4, the judgment unit 23 judges that getting on and off the car has been performed, so it judges 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. 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 the connection state with the maintenance terminal 9 has changed, and transmits the detection result to the measurement processing device 2 .

Changes in the state of connection between the communication device 3 and the maintenance terminal 9 include a change from a state in which the communication device 3 and the maintenance terminal 9 are disconnected to a state in which the communication device 3 and the maintenance terminal 9 are connected, and There is a change from a connected state to a disconnected state. In addition, the state of connection 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 not connected. It may remain in a state where

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 has entered 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 location information held by the maintenance terminal 9 with the work schedule of the FE registered in the remote monitoring center 10, and the FE implements (or implements) the work schedule. determined whether the work is scheduled or not. The communication unit 32 of the communication device 3 receives the work schedule of the FE from the remote monitoring center 10 and transmits it to the measurement processing device 2 . If the work to be performed by the FE is not scheduled, the process proceeds to S7. If the work to be performed by the FE is scheduled, the process proceeds to S8.

In S<b>7 , the communication control section 24 instructs the communication section 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 unscheduled work.

In S8, the determination unit 23 determines whether or not the remote monitoring center 10 is capable of communication control of the elevator (elevator in which the safety management system according to this embodiment is installed) in which the FE works. Whether or not the remote monitoring center 10 can perform communication control of the elevator is inputted in advance to the measurement processing device 2 . If the remote monitoring center 10 cannot control the communication of the elevator, proceed to S9, and if possible, proceed to S10.

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

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

In S<b>41 , the determination unit 23 of the measurement processing device 2 determines whether or not the elevator is traveling at high speed using the moving speed V of the car 4 . When the car 4 is running at a speed equal to or higher than a predetermined specified value, the determination unit 23 determines that the elevator is running at a high speed, and notifies the maintenance terminal 9 via the communication device 3 An alert for calling attention is output (S42).

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

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

The maintenance terminal 9 can also display on the screen the button 43 that 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 slides or taps 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. As shown in FIG. On the screen, which is the output unit 19 of the maintenance terminal 9, for example, an accident case or warning message 44 related to dangerous work is displayed. If the maintenance terminal 9 can communicate with the terminal owned by the manager of maintenance work, the maintenance terminal 9 can also display a button 45 for making a call with the manager on the screen. Along with button 45, the administrator's name may be displayed. When the FE operates the button 45, the maintenance terminal 9 communicates with the terminal owned by the administrator. The alert sound and vibration may be stopped when the maintenance terminal 9 communicates with the manager's terminal.

In S43, the communication unit 32 of the communication device 3 transmits to the remote monitoring center 10 a notification that dangerous work has occurred in which 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 of the occurrence of such dangerous work.

The description of the high-speed running monitoring process shown in FIG. 4 is finished above, and the description returns to FIG.

S10 is processing when the remote monitoring center 10 is capable of communication control of the elevator. The communication unit 32 of the communication device 3 transmits to the remote monitoring center 10 a command to prohibit the elevator from running at high speed. When the remote monitoring center 10 receives 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. The remote monitoring center 10 also sends a signal to the communication device 3 to notify the measurement processing device 2 that the elevator is prohibited from running at high speed.

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

S12 is processing when the connection state between the communication device 3 and the maintenance terminal 9 does not change from disconnected to connected in S5. The communication device 3 continues to detect whether or not the connection state with the maintenance terminal 9 has changed, and transmits the detection result to the measurement processing device 2 . If the connection state between the communication device 3 and the maintenance terminal 9 changes from connected to disconnected, the process proceeds to S13. If the connection state between the communication device 3 and the maintenance terminal 9 does not change from connected to disconnected, the process proceeds to S18.

In S13, the determination unit 23 determines that the FE has gotten off the car if the connection between the communication device 3 and the maintenance terminal 9 is disconnected even after a sufficient amount of time has passed since the processing in 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 is capable of communication control 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, proceed to S15, and if possible, proceed to S16.

In S15, the measurement processing device 2 terminates the above-described high-speed travel monitoring process (FIG. 4).

S16 is processing when the remote monitoring center 10 is capable of communication control of the elevator. The communication unit 32 of the communication device 3 transmits to the remote monitoring center 10 a command to permit the elevator to run at high speed. When the remote monitoring center 10 receives this command, it controls the elevator so that it can run at high speed. The remote monitoring center 10 also transmits a signal to the communication device 3 to notify the measurement processing device 2 that the elevator is permitted to run at high speed.

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

S18 is processing when there is no change in the connection state between the communication device 3 and the maintenance terminal 9 from connected to disconnected in S12. 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 passenger did not enter or exit the car.

The flow of processing shown in FIGS. 3 and 4 is an example of the flow of processing executed by the safety management system according to this embodiment. In this example, when the determination unit 23 detects that the elevator is running at high speed, the maintenance terminal 9 possessed by the FE working on the car outputs an alert to call attention (S42 in FIG. 4). Generally, maintenance work is performed by FEs on the car and FEs 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 specified value, the determination unit 23 determines, via the communication device 3, that the FE in the car has The maintenance terminal 9 is also caused to output an alert for calling attention to inform the FEs in the car that the FEs in the car are in danger. Then, in S42, the maintenance terminal 9 possessed by the FE in the car outputs an alert to call attention that the FE in the car is in danger. An FE in the car is easier to operate to avoid danger such as an emergency stop than an FE in the car. can be executed.

The safety management system according to the present embodiment has the configuration described above, detects that the FE is working on the car, and outputs an alert when the elevator is traveling at a high speed, or performs maintenance work. By notifying the manager or the remote monitoring center 10, or prohibiting the elevator from running at high speed, the safety of the FE working on the car can be improved.

A safety management system for elevators according to a second embodiment of the present invention will be described. In the following, the configuration of the safety management system according to the present embodiment, which is different from that of 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. 53 and an alert output unit 54 is different from the safety management system according to the first embodiment.

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

The car position determination unit 51 performs the processing shown in S2 of FIG. and information from a sensor that detects the position of the car 4. 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.

The vibration determination unit 52 determines that the FE has stepped on the car 4 when receiving information about the vibration of the car 4 from the acceleration sensor 1 . More specifically, when the vibration determining unit 52 receives information from the acceleration sensor 1 that a predetermined vibration occurs when the FE gets on the car 4, the vibration determination unit 52 detects that the FE is on the car 4. It is determined that it is on top of 4.

The speed determination unit 53 uses the moving speed V of the car 4 obtained by the measured value processing unit 22 of the measurement processing device 2 to determine whether the car 4 travels at a speed equal to or higher than a predetermined specified value. judge. The speed determination unit 53 determines that the elevator is running at a high speed when the car 4 is running at a speed equal to or higher than a predetermined specified value.

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

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

The alert output unit 54 can also send a notification to the remote monitoring center 10 notifying that 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, it outputs an alert, or notifies the maintenance work manager or the remote monitoring center 10. Such notification can improve safety when the FE works on the car.

It should be noted that the present invention is not limited to the above embodiments, and various modifications are possible. For example, the above embodiments have been described in detail in order to facilitate understanding of the present invention, and the present invention is not necessarily limited to aspects having all the described configurations. Also, it is possible to replace 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. Moreover, it is possible to delete a part of the configuration of each embodiment, or to add or replace another configuration.

DESCRIPTION OF SYMBOLS 1... Acceleration sensor, 2... Measurement processing apparatus, 3... Communication apparatus, 4... Car, 5... Winding machine, 6... Control apparatus, 7... Main rope, 8... Balance weight, 9... Maintenance terminal, 10... Remote monitoring center 11 Machine room 19 Output unit 21 Measured value storage unit 22 Measured value processing unit 23 Judgment unit 24 Communication control unit 31 Near field communication unit 32 Communication unit 41 Contents of dangerous work 42 Moving speed of car 43 Button 44 Accident case or warning message 45 Button 51 Car position determination unit 52 Vibration determination unit 53 Speed determination Section 54... Alert output section.

Claims (4)

In an elevator safety management system equipped with an acceleration sensor installed in the car, a measurement processing device, and a maintenance terminal held by maintenance personnel,
A communication device installed on the upper part of the car and capable of communicating with the measurement processing device and the maintenance terminal,
The acceleration sensor detects acceleration when the car moves and vibration of the car,
The measurement processing device includes a determination unit,
The maintenance terminal has an output unit,
The determination unit is
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 a door zone;
a vibration determination unit that determines that the maintenance worker has stepped on the top of the car when receiving information about the vibration from the acceleration sensor;
a speed determination unit that determines whether or not the car travels at a speed equal to or higher than a predetermined specified value using the moving speed of the car obtained from the acceleration;
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 stepped on the upper part of the car, and the speed determination unit an alert output unit that outputs an alert to the maintenance terminal when it is determined that the car travels at a speed equal to or higher than the specified value;
with
The determination unit determines that the acceleration sensor detects the vibration after the car stops at a position other than the door zone, and the connection state between the communication device and the maintenance terminal changes from disconnection to connection. If there is, it is configured to determine that the maintenance worker got on the upper part of the car,
The determination unit is configured to determine whether or not the car is traveling at a speed equal to or higher than the specified value when it is determined that the maintenance worker has gotten on the upper part of the car,
The output unit of the maintenance terminal outputs an alert when the car is traveling at a speed equal to or higher than the specified value.
A safety management system for an elevator, characterized by: In the elevator safety management system according to claim 1 ,
the communication device is capable of communicating with a remote monitoring center;
The elevator safety management system, wherein the communication device transmits a notification to the remote monitoring center when the car is running at a speed equal to or higher than the specified value. In the elevator safety management system according to claim 1 ,
In the maintenance terminal, the output unit has a screen,
The elevator safety management system, wherein the alert is a message displayed on the screen of the maintenance terminal. In the elevator safety management system according to claim 1 ,
The communication device is capable of communicating with a remote monitoring center capable of communication control of the elevator,
When the determination unit of the measurement processing device determines that the maintenance worker has stepped on the upper part of the car, the communication device prohibits the car from traveling at a speed equal to or higher than the specified value. An elevator safety management system that sends commands to the remote monitoring center.

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