KR20230126475A - Elevator remodeling and maintenance system - Google Patents

Abstract

The elevator remodeling and maintenance system of the present invention sends a maintenance message requesting maintenance corresponding to a preset event to an elevator when a preset event occurs during an inspection of a plurality of elevator doors and their states. Maintenance notification unit that delivers to the elevator terminal installed inside; And it is determined whether the maintenance message is different from the first emergency signal according to 'on' of the emergency switch in the elevator, and if the maintenance message and the first emergency signal message are different, a second emergency message is generated to and an elevator terminal transmitting the second emergency message to a maintenance worker terminal or a manager terminal managing a plurality of elevators.

Description

Elevator remodeling and maintenance system {Elevator remodeling and maintenance system}

It relates to an elevator remodeling and maintenance system that performs elevator safety management.

As high-rise buildings increase, the importance of elevator facilities, which are vertical transport facilities, is increasing day by day. In relation to this trend, safety accidents in elevators are also increasing every year. In order to prevent safety accidents of elevators and to operate safely and comfortably, it is necessary to periodically check the performance of elevators.

The purpose of the safety inspection, which is a regular inspection conducted by the Korea Elevator Safety Management Institute and the Korea Elevator Safety Technology Institute, and the self-inspection that the elevator management body must perform every month is to ensure the safe operation of the elevator.

There are various inspection items for safety, but among them, if you identify the cause of vibration or noise that is necessarily generated by the mechanical operation of many parts that make up the elevator equipment, you can find the cause that interferes with the safe operation of the elevator in advance. Accidents that may occur unexpectedly can be prevented in advance, and convenient ride quality can be improved.

Self-inspection, completion inspection, regular inspection, occasional inspection, and precise safety inspection, which evaluate the safety or performance of elevator equipment performed by elevator maintenance companies, are important inspections for safe elevator operation, and are the basis for evaluating the performance and stability of the elevator. It can be used as a resource.

Due to rapid economic growth and urbanization in Korea, the density of high-rise buildings is high and there are many new buildings, so the installation and use of elevators has increased rapidly. As the installation and use of elevators increase, the importance of elevator safety management is also increasing. In Korea, more than 10 people die every year due to elevator accidents, and more than 100 people are seriously injured, and the damage to the elderly and children is increasing.

Republic of Korea Patent Publication No. 1020180126526 (published on November 27, 2018)

The purpose of the present invention is to prevent safety accidents in domestic and foreign elevators by improving the elevator safety management system.

The elevator remodeling and maintenance system of the present invention sends a maintenance message requesting maintenance corresponding to a preset event to an elevator when a preset event occurs during an inspection of a plurality of elevator doors and their states. A maintenance notification unit delivered to the elevator terminal installed inside and

It is determined whether the maintenance message is different from the first emergency signal according to the 'on' of the emergency switch in the elevator, and if the maintenance message and the first emergency signal message are different, a second emergency message is generated to maintain the maintenance message. An elevator terminal transmitting the second emergency message to a maintenance worker terminal or a manager terminal managing a plurality of elevators may be included.

In addition, the elevator remodeling and maintenance system may further include an automatic alarm unit generating an alarm informing an elevator user or an elevator maintenance worker of danger when the second emergency message is received from the elevator terminal.

In addition, the elevator remodeling and maintenance system is operated when the second message is received from the elevator terminal, and may further include a door lock switch unit composed of a two-level parallel on/off switch.

In addition, the elevator remodeling and maintenance system may further include an elevator location information acquisition unit that acquires location information of an elevator system currently maintained by a maintenance worker.

In addition, the elevator remodeling and maintenance system may further include a first relative height information acquisition unit that obtains information on how high the elevator maintained by the elevator location information acquisition unit is from the ground.

In addition, the elevator remodeling and maintenance system may further include a maintenance process information generation unit for transmitting a progress of maintenance to the maintenance notification unit.

In addition, the elevator remodeling and maintenance system includes an atmospheric pressure sensor, a satellite navigation system sensor, an accelerometer, a gyroscope, short-range wireless communication, radio frequency identification or other radio frequency signals installed in a portable terminal owned by a maintenance worker in the lifting aisle. It may further include a second relative height information acquisition unit that acquires relative height information of maintenance worker entities in the lifting aisle corresponding to the elevator system based on at least one of the signal strength indication and the camera.

The present invention has the advantage of providing an improved elevator safety management system that prevents safety accidents of domestic and foreign elevators.

1 is a block diagram of an elevator remodeling and maintenance system of the present invention.
2 is a wiring diagram of a door lock switch unit of the present invention.
3 illustrates a process of acquiring second relative height information in the second relative height information acquisition unit of the present invention.

In the existing rope brake system, when the door is open at the moment passengers get on and off, the elevator slips due to a decrease in frictional force between the rope and the pulley and weight imbalance, or an overspeed that exceeds the rated speed in the upward direction due to a defect in the brake system. When this occurs, there is a problem in that the car cannot be completely stopped mechanically with the structure of the existing emergency stop device that operates only in the downward direction.

In order to solve this problem, a door opening start prevention device including an upward speed prevention device function has been developed as an auxiliary safety device in addition to the existing emergency stop device. Among these anti-opening devices, rope brakes include hydraulic rope brakes and spring-type rope brakes.

In the hydraulic rope brake, the cylinder pressure is equal to the set pressure of the hydraulic supply unit by switching of the directional control valve, and the solenoid shoe is operated to hold the rope.

The spring-type rope brake applies braking with the force of a spring through two axes connected to the front cover and rear cover and a slider connected to them. has the advantage of obtaining

In addition, the manufacturing process is simpler than the existing hydraulic braking method, and there is an effect of reducing the cost of the product.

Looking at the safety circuit, if a door open (DOL) is detected while the car door contact or platform door contact is short-circuited for some reason, that is, HDR or CDR contact input is input, an error (Non off Car Door Switch or Non off Hall Door Switch) is detected. ) and the elevator stops.

In this control process, even when the governor switch is tripped abnormally due to mischief by passengers running inside the car or deterioration of the function of the governor, the rope brake is interlocked and operated. In particular, there is a problem that is more shocking to pregnant women and the elderly.

In the present invention, the speed pattern of the elevator is designed to move according to the speed pattern control made by using a constant jerk with a time interval and deceleration position according to a constant acceleration/deceleration speed pattern.

At the deceleration point of the elevator, the jerk is minimized so that the acceleration acts in the opposite direction and the speed is reduced. When it reaches the stopping point again, it sets the jerk to 0 to stop the elevator.

An elevator remodeling and maintenance system according to an embodiment of the present invention includes a maintenance notification unit 100, an automatic alarm unit 200, a door lock switch unit 300, an elevator location information acquisition unit 400, a first relative height It may include an information acquisition unit 500, a maintenance process information generation unit 600, and a second relative height information acquisition unit 700.

1. Maintenance notification unit (100)

The maintenance notification unit 100 according to an embodiment of the present invention requests to proceed with maintenance corresponding to the preset event when a preset event occurs during the inspection of a plurality of elevator door events and states. maintenance message to the elevator terminal installed inside the elevator.

In one embodiment, the maintenance notification unit 100 transmits a maintenance message to the elevator terminal in the case of a specially defined first event, and exceeds a preset limit when a defect event other than the first event occurs. The maintenance message is delivered to the elevator terminal.

In some elevators, notable events or conditions occur frequently, even though no component in the elevator is defective and no service needs to be run to change the situation.

An average operating rate may be generated based on the occurrence frequency of the first event determined in advance to be a fatal defect for elevator maintenance. In addition, based on this average operating rate, it can be used to determine a defect threshold based on the occurrence of a defect event.

The maintenance notification unit 100 provides a reference image of the elevator system, provides a current image of the elevator system, detects a difference between the reference image and the current image by comparing the current image to the reference image, Deriving the occurrence of a first event, deriving a defect threshold based on the occurrence of the first event, and notifying maintenance to a maintenance worker terminal may be performed.

The maintenance message generated by the maintenance notification unit 100 may be a radio signal. The wireless maintenance message transmitted from the maintenance notification unit 100 is transmitted to the elevator terminal. Thereafter, the elevator terminal determines whether the maintenance message and the first emergency signal according to 'on' of the emergency switch in the elevator are different, and if the maintenance message and the first emergency signal message are different, a second emergency signal A message may be generated and delivered to the maintenance worker terminal, or the second emergency message may be delivered to a manager terminal managing a plurality of elevators.

2. Automatic alarm unit (200)

When receiving the second emergency message from the elevator terminal, the automatic alarm unit 200 according to an embodiment of the present invention may generate an alarm notifying an elevator user or an elevator maintenance worker of danger.

According to the present invention, as with the existing elevator, one car upper and lower inspection lamp is provided on the upper and lower sides of the elevator, and a pit inspection lamp is provided on the upper side of the ladder for inspection of the pit part. The other components have generally the same configuration as the prior art, and only the pit part automatic alarm unit 200 is installed under the pit inspection lamp on the upper side of the ladder for inspection of the pit part, and the car upper alarm bell is installed in the door control box attached to the upper part of the elevator. are embedded

Preferably, the automatic alarm unit 200 is an automatic alarm device during maintenance and inspection of the elevator, which is a car upper alarm bell built into the door control box and a pit alarm bell installed in the pit part of the elevator. An alarm switch with a pit check lamp can be installed on the operating panel of each platform.

An automatic alarm unit 200 is installed where the pit inspection lamp is located so that an alarm can be generated during pit maintenance inspection, and an automatic alarm unit 200 is also built inside the door control box to perform maintenance on the top of the car or at the entrance to the hoistway. If necessary, an alarm can be sounded automatically.

The automatic alarm unit 200 may be a car top alarm bell or a pit alarm bell depending on circumstances.

In addition, an automatic alarm switch may be additionally installed along with a boarding button for direction selection on a control panel attached to each platform door.

3. Door lock switch unit (300)

The door lock switch unit 300 is operated when the second message is received from the elevator terminal.

In the door lock switch unit 300, when a maintenance worker unlocks a door with a door key for maintenance work, the first and second key switch contacts are simultaneously operated and the contacts are simultaneously restored when the key is pulled out. However, it can be configured as a parallel-type keyswitch.

In addition, the door lock switch unit 300 may be configured such that a door lock switch is installed on the upper side of a platform entrance door, but a maintenance worker releases a locking action of the lock switch with a door key and manually opens the door.

The door lock switch unit 300 is composed of a two-stage parallel on/off switch, and an alarm switch is connected in series in front of the door lock switch. The door lock switch unit 300 can turn on the first key switch and the second key switch of the two-stage parallel type at the same time when the maintenance worker releases the locking action of the door lock switch attached to the door with the door key for maintenance inspection. there is.

A first electronic relay for a self-maintaining circuit and a second electronic relay for turning on an inspection lamp may be connected in series to the second key switch of the two-stage parallel key switch.

In addition, the magnetic holding contact of the first electromagnetic relay for the magnetic holding circuit may be connected to both ends of the second key switch contact in parallel. Therefore, even if the second key switch is turned off, the magnetic holding contact is turned on by the excitation of the first electromagnetic relay coil, so control power is supplied to the first and second electromagnetic relay coils.

In an elevator composed of a door control box that controls the opening and closing of elevator doors and car upper and lower inspection lamps that are manually operated during elevator inspection, the door lock switch unit 300 is a first kiss so that maintenance workers can operate it simultaneously with a door key It can be formed in parallel in two stages with the position and the second key switch.

As a result, even if the second key switch returns, the supply of control power is maintained and the second electromagnetic relay coil is serially connected to the first electromagnetic relay coil to turn on the inspection lamp connected in series with the fixed contact of the second electromagnetic relay. .

The counterweight is configured to balance the load of the elevator car and facilitate movement of the elevator car simultaneously in an elevator hoistway and along a guide rail in opposite directions relative to the counterweight.

4. Elevator location information acquisition unit 400

The elevator location information acquisition unit 400 may obtain location information of an elevator system currently maintained by a maintenance worker. For example, the elevator location information acquisition unit 400 may obtain elevator location information using a GPS sensor installed in a mobile terminal possessed by the worker.

That is, the elevator location information acquisition unit 400 is for specifying which elevator is being managed among elevators of a plurality of managed locations.

The elevator location information acquiring unit 400 transmits the acquired elevator location information to the maintenance notification unit 100 .

5. First relative height information acquisition unit 500

The first relative height information acquisition unit 500 may obtain information on how high the elevator maintained by the elevator location information acquisition unit 400 is from the ground.

The first relative height information acquisition unit 500 may obtain height information of the elevator relative to the ground. The first relative height information acquiring unit 500 may be acquired in real time by a terminal embedded in the elevator or obtained from a mobile device of a passenger boarding the elevator. A height sensor for generating a signal indicating the relative height of the elevator is installed outside the elevator, and the elevator built-in terminal or passenger's mobile device receives the signal generated by the height sensor to obtain relative height information of the elevator. can

The first relative height information acquiring unit 500 transfers the acquired relative height of the elevator to the maintenance notification unit 100 .

6. Maintenance process information generator (600)

The maintenance process information generation unit 600 may transmit the progress of maintenance to the maintenance notification unit 100 . The maintenance process information generation unit 600 may generate maintenance process information through a portable terminal of the maintenance worker or a pre-installed camera. The maintenance process information may be generated or updated in real time according to the progress of the maintenance work of the maintenance worker entity in the lifting passage. Preferably, the maintenance process information may be generated or updated step by step according to the work situation of the maintenance worker.

7. Second relative height information acquisition unit 700

The second relative height information refers to relative height information of a maintenance worker entity in a lifting passage corresponding to an elevator system. The second relative height information is an atmospheric pressure sensor, satellite navigation system sensor, accelerometer, gyroscope, short range wireless communication, radio frequency identification or other radio frequency signal strength indication installed in a portable terminal owned by a maintenance worker in the lifting aisle; and It may be determined based on at least one of the cameras.

The second relative height information may be transmitted to the maintenance notification unit 100 so that a maintenance process may be tracked.

The preferred embodiments of the present invention described above have been disclosed for illustrative purposes, and those skilled in the art with ordinary knowledge of the present invention will be able to make various modifications, changes, and additions within the spirit and scope of the present invention, and these modifications, changes, and The additions should be viewed as falling within the scope of the following claims.

Claims (7)

Maintenance that transmits a maintenance message requesting maintenance corresponding to the preset event to the elevator terminal installed inside the elevator when a preset event occurs during the inspection of multiple elevator door events and states notification department; and
It is determined whether the maintenance message is different from the first emergency signal according to the 'on' of the emergency switch in the elevator, and if the maintenance message and the first emergency signal message are different, a second emergency message is generated to maintain the maintenance message. An elevator remodeling and maintenance system comprising an elevator terminal for transmitting the second emergency message to a maintenance worker terminal or to a manager terminal managing a plurality of elevators. According to claim 1,
The elevator remodeling and maintenance system
Elevator remodeling and maintenance system further comprising an automatic alarm unit generating an alarm informing an elevator user or elevator maintenance worker of danger when the second emergency message is received from the elevator terminal. According to claim 2,
The elevator remodeling and maintenance system
Elevator remodeling and maintenance system further comprising a door lock switch unit operated when a second message is received from the elevator terminal and composed of a two-stage parallel on / off switch. According to claim 3,
The elevator remodeling and maintenance system further comprises an elevator location information acquisition unit for acquiring location information of an elevator system currently maintained by a maintenance worker. According to claim 4,
The elevator remodeling and maintenance system
Elevator remodeling and maintenance system further comprising a first relative height information acquisition unit for acquiring information on how high the elevator being maintained by the elevator location information acquisition unit is at a height from the ground. According to claim 5,
The elevator remodeling and maintenance system
Elevator remodeling and maintenance system further comprising a maintenance process information generation unit for conveying the progress of maintenance to the maintenance notification unit. According to claim 6,
The elevator remodeling and maintenance system includes atmospheric pressure sensors, satellite navigation system sensors, accelerometers, gyroscopes, short-range wireless communication, radio frequency identification or other radio frequency signal strength installed on portable terminals owned by maintenance workers in the lifting aisle. The elevator remodeling and maintenance system further comprising a second relative height information acquisition unit that acquires relative height information of a maintenance worker entity in a lifting passage corresponding to the elevator system based on at least one of a display and a camera.