KR19980034679A - Rescue Driving Device and Method of Elevator - Google Patents

Abstract

The present invention relates to an elevator rescue operation apparatus and method, in particular, the operation start based on the current position information, speed information and load information in the cage collected by the communication terminal periodically by the additional addition without expensive hardware device This impossible elevator is designed to allow the rescue operation of other units. The present invention provides a group management control panel for controlling the overall operation of the elevator operation, a plurality of exhalation control panel for periodically detecting and transmitting the current speed information of the cage, the position information and the load information in the cage, and the information of a specific unit of the exhalation control panel It is configured to store a plurality of platform terminals for storing and transmitting a slip (slip) distance to the breakdown unit during the rescue operation to the military management control panel.

Description

Rescue Driving Device and Method of Elevator

TECHNICAL FIELD The present invention relates to an elevator rescue operation apparatus and method for driving an elevator, which is impossible to operate due to a failure of a blackout lamp, to rescue passengers. It is about.

In general, when several elevators are operated in parallel in one building, one of the units may be in an emergency stop due to a power failure during driving, and thus may be impossible to restart.

In such cases, rescue operations must be carried out to rescue passengers in the elevator.

1 is a configuration diagram of a conventional rescue driving apparatus, as shown therein, a power inverter 1A and 1B driving motors 2A and 2B to drive respective cages 10A and 10B, respectively. And absolute encoders 4A and 4B for counting pulses and storing coefficient values proportional to the vertical movement of the cages 10A and 10B as respective current position data, and the cage 10A during elevator operation. 10B) is a position detection unit for detecting the position of each other and determining the rescue operation of other units, and calculating the position difference value by reading the current position data stored in the absolute encoders 4B and 4A and calculating the position difference values. 7A) 7B and the speed command unit 8A and 8B which respectively generate a speed profile by inputting the calculated values of the position detection unit 7A and 7B, and the speed command unit 8A and 8B. It consists of speed control part 9A, 9B which respectively controls the said power inverter 1A, 1B according to an output value.

In the drawings, reference numerals 3A and 3B are sheaves, 5A and 5B are upper pulleys, and 6A and 6B are lower pulleys.

Referring to the operation of the conventional device as follows.

If two elevators are operating, the sieve 3A is driven as the power inverter 1A drives the motor 2A under the control of the speed control unit 9A, and the first unit 10A runs upward or downward. Done.

At this time, the upper pulley 5A and the lower pulley 6A rotate in accordance with the vertical direction of the first elevator 10A, and the absolute encoder 4A having the backup battery is the first elevator 10A. The pulse is counted as the upper pulley 5A rotates due to the vertical motion of Δ), and the count value is stored as current position data.

The same operation is performed in the case of the second elevator 10B so that the absolute encoder 4B stores the current position data of the second elevator 10B.

As the first and second elevators 10A and 10B operate, the position detectors 7A and 7B perform a rescue operation through the same process as the signal flow of FIG.

That is, when the operation of the elevator starts, the position detectors 7A and 7B judge whether or not the other unit is inoperable due to power failure or the like and the rescue operation mode set by the rescue operation request from the outside is set.

At this time, if it is not the rescue operation mode, the position detectors 7A and 7B determine whether the elevator of the other machine is stopped.

Accordingly, when the elevator of the other machine is stopped, the position detection units 7A and 7B read the current position data stored in the absolute encoders 4B and 4A of the other machine and store them as position data of the floor.

And if it is not the stop state of the elevator of a other machine, the position detection part 7A (7B) will continue to judge whether it is the rescue operation mode of another machine.

If the other unit is determined to be in the rescue operation mode due to an abnormal power supply or the like, for example, when the first elevator 10A is in a non-startable state, the position detecting unit 7B is stored in the absolute encoder 4A. The current position data of the first elevator 10A is read.

At this time, the position detection unit 7B compares the current position of the elevator No. 1 elevator which is a failure unit and the present position of the elevator unit 2 which is a self-exhaler, and calculates the difference.

Accordingly, when the position detection unit 7B outputs the driving direction and the difference value, the speed command unit 8B generates a speed profile, and the speed controller 9B drives the motor 2B based on the value. Will be controlled.

Therefore, when the 2nd elevator 10B is operated to the stop position of the 1st elevator 10A which is a fixed flight, it will open | release one side of the 1st elevator 10A forcibly, and rescues a passenger.

When performing the rescue operation, the operation of synchronizing the position of the exhalation unit to the rescue unit and the failed unit will be described with reference to FIG. 2.

As described above, it is assumed that the failing unit is Unit 1 and the unit to be rescued is Unit 2, and the position of Unit 1 is higher than Unit 2.

First, when a rescue operation request is input from the outside and the position detection unit 7B calculates the position difference value between the cage 10A of the other machine and the cage 10B of the self-protecting machine and outputs it to the speed command unit 8B, the speed command unit The speed controller 9B, which has received the speed profile generated in 8B, controls the power inverter 1B to drive the motor 2B so that the cage 10B runs at a constant speed.

Thereafter, the cage 10B travels at a constant speed so that the light emitted from the light emitting portion 12A of the cage 10A is recognized by the light receiving portion 11B of the cage 10B, and the light emitting portion of the cage 10B is recognized. When the light emitted from 12B reaches the point of time recognized by the light receiving unit 11A of the cage 10A, the position detecting unit 10B recognizes it and transmits it to the speed command unit 8B.

At this time, the speed command section 8B outputs a command for deceleration, and the power inverter 1B makes the rotation of the motor 2B at a low speed to maintain a constant speed under the control of the speed control section 9B.

Accordingly, when the cage 10B moves at a low speed and recognizes all the light emitted from the light receiving portion 11A attached to the upper and lower portions of the cage 10B, the light emitted from the light transmitting portion 12A attached to the upper and lower portions of the cage 10A. The position detection unit 10B recognizes the stop time of the cage 10B and transmits it to the speed command unit 8B.

At this time, when the speed control unit 9B stops driving the power inverter 1B by the command of the speed command unit 8B, the rotation of the motor 2B is stopped and the cage 10B is suddenly stopped.

The velocity pattern of the cage 10B is the same as the waveform diagram of FIG. 4.

As a result, one side of the cage 10A and the cage 10B is opened to rescue the passenger.

However, such a conventional technique requires a separate optical sensor to be synchronized with each other during the rescue operation for each rescue unit for rescue operation, and there is a problem that there is no countermeasure in the event of an abnormality in hardware.

In addition, the prior art has a disadvantage in that the riding comfort is bad at the time of deceleration and stop of the exhalation to rescue during rescue operation.

The present invention is an elevator that can not start the operation based on the current position information, speed information and load information in the cage periodically collected by the communication terminal without additional addition of expensive hardware device to improve the disadvantages of the prior art An object of the present invention is to provide a rescue operation apparatus and method of the elevator invented to enable the rescue operation of other units.

1 is a block diagram of a conventional rescue operation apparatus.

Figure 2 is an exemplary view showing a rescue operation in FIG.

3 is a signal flow diagram for a conventional rescue operation.

Figure 4 is a waveform diagram showing a speed pattern in the conventional rescue operation.

5 is a configuration diagram showing a communication network connection in the present invention.

6 is a block diagram of a landing terminal in FIG.

FIG. 7 is an exemplary diagram illustrating a memory map of a RAM in FIG. 6.

8 is an exemplary diagram illustrating a memory map of a ROM in FIG. 6.

9 is a signal flow diagram for rescue operation in the present invention.

10 is a waveform diagram showing the slip distance of the cage in the present invention.

* Description of the symbols for the main parts of the drawings *

201: group control panel 202 to 204: unit control panel

205 to 207: cage 208A to 208B, 209A to 209B: platform terminal

211: communication unit 212: prediction stop position calculation unit

213: dispersion control unit 214: RAM

215: ROM (ROM)

As shown in Fig. 5, the rescue operation apparatus of the present invention controls the group management control panel 201 for controlling the overall operation of the elevator operation, and the cages 205 to 207, respectively, and controls the cages 205 to 207. Exhalation control panels 202 to 204 for periodically detecting current speed information, position information and load information in the cage, and information periodically transmitted from the exhalation control panels 202 to 204, and failing exhalation during rescue operation. It consists of platform terminals 208A to 208B and 209A to 209B which calculate a slip distance with respect to and transmit it to the group management control panel 201.

As shown in FIG. 6, the platform terminals 208A to 208B and 209A to 209B store a ram 214 that stores current speed information, position information, and load information in a cage, and deceleration and operation of a brake by weight. ROM 215 for storing data on the delay time, a communication unit 211 for communicating with the respective air control panels 202 to 204 to update the storage information of the RAM 214, and software for power failure. In the case of an emergency stop, the predicted stop position calculator 212 calculates a slip distance by reading the stored data of the ROM 215 and a distributed controller 213 that controls display and input / output devices. do.

The terminal terminals 208A to 208B and 209A to 209B selectively receive and store position information, speed information, and load information in the cage from one or more specific exhalation control panels among the exhalation control panels 202 to 204. Have a big stomach.

The memory map of the RAM 214 is configured to store the current position value of the exhalation, the current speed value of the exhalation, and the weight value in the exhalation cage, as shown in FIG. 7.

As illustrated in FIG. 8, the memory map of the ROM 215 is configured to store the operation delay time of the brake and the deceleration of the brake according to the load amount in the cage for each region.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

When the operation of the elevator is performed, each of the exhalation control panels 202 to 204 operates the respective cages 205 to 207 in the hoistway in the vertical direction, and periodically transmits the current position information, the speed information and the load information in the cage to the landing terminal ( 208A to 208B (209A to 209B). At this time, the boarding point terminals 208A to 208B and 209A to 209B periodically check whether the position information, the speed information and the load information in the cage are properly received among the exhalation control panels 202-204.

Accordingly, the boarding terminal terminals 208A to 208B and 209A to 209B receive data for each unit stored in the RAM 214 when the unit information is periodically received from the assigned control panel through the communication unit 211. Will be updated.

The platform terminals 208A to 208B and 209A to 209B may receive and store position information, speed information, and load information in a cage from one or more specific exhalation control panels among the exhalation control panels 202 to 204.

At this time, the boarding terminals 208A to 208B and 209A to 209B update the data stored in the RAM 214 if there is a flight for which the data has been received and a flight for which no data is received. In the case of a call for which no data has been received, the communication check data is transmitted to the corresponding call to detect the abnormality of the call.

Accordingly, the platform terminals 208A to 208B and 209A to 209B transmit communication check data to detect whether there is an abnormality of the corresponding unit, and if the node state of the unit is normal, the speed information, the position information of the unit, and the like. Request load information in the cage and update the corresponding data stored in RAM 214 with the received information.

If it is determined that the node state of the exhalation unit is not normal and restartable due to abnormal power supply, the terminal terminals 208A to 208B and 209A to 209B prove to be a malfunction exhalation, and exclude the malfunctioning exhalation unit from the assigned exhalation and rescue. The unit is selected to transmit the information indicating that the rescue unit is to the military management control panel 201 through the communication unit 211.

At this time, the group management control panel 201 requests the boarding terminals 208A to 208B and 209A to 209B to transmit the predicted stop position values for the trouble call.

Accordingly, in the platform terminal which stores the position value of the fault exhaler among the platform terminals 208A to 208B and 209A to 209B, the predicted stop position calculation unit 212 decelerates by the weight of the brake stored in the ROM 215. The predicted stop position of the breakdown unit is calculated using the diagram data and the operation delay time data, and the communication unit 211 transmits the predicted stop position data to the group management control panel 201.

At this time, the military management control panel 201 selects a plurality of values that match among the received predicted stop position values. This is to obtain a reliable predicted stop position value by the filtering process even when the memory of a part of the landing terminals 208A to 208B (209A to 209B) storing and calculating the position value in the landing terminals is abnormal.

Subsequently, the predicted stop position value of the malfunctioning exhalation unit is transmitted to the exhalation unit selected from the exhalation control panels 202 to 204 as the rescue exhalation unit.

Accordingly, the rescue breathing unit of the breath control panels 202 to 204 calculates the difference between the predicted stop position value of the fault breathing unit and the position value of the current self-exposure to generate a speed profile to perform the rescue operation.

On the other hand, if any of the cages (205 to 207) is impossible to start due to a power outage while driving, the mechanical brake is operated to decelerate to a constant deceleration (B), so the slip distance S of the cage is It can be obtained as below equation.

S = V1 * Td + V1 ² / 2B

Here, S is the running distance of the cage, Td is the operating delay time of the brake, B is the deceleration of the brake, and V1 is the running speed of the cage.

Schematic of the above equation is shown in FIG.

In the above equation, the traveling speed V1 of the cage can be known by communication at regular intervals, and the operation delay time Td of the brake is also set to a constant value by each brake type.

Therefore, if only the deceleration B value of the brake can be known, the slip distance S of the cage can be known.

Here, the deceleration B of the brake can be obtained through experiments as a function of the cage's own weight, the rope weight, the frictional force of the brake drum, the weight in the cage, and the like.

The weight of the cage itself, the weight of the rope, the friction of the brake drum is a factor having a constant value, the variable element is the weight in the cage that varies depending on the load of passengers or cargo.

And, the weight value in the cage can be seen what percentage of the load on the basis of the differential transformer or various loads in the current elevator system, this value is the platform terminal 208A to 208B ( 209A to 209B).

In the ROM 19 of the terminal terminals 208A to 208B and 209A to 209B, as shown in FIG. 8, the deceleration rate of the brake and the operation delay time of the brake by weight (percentage of the rated load) in the cage of the corresponding unit are as shown in FIG. Is stored.

Therefore, the slip distance S of the exhalation can be calculated by the above equation due to power failure or other abnormal state.

In addition, in the present invention, it is possible to accurately determine the failure time of the failure exhalation in connection with the prediction stop position calculation.

That is, since the boarding terminals 208A to 208B and 209A to 209B periodically receive the current position value of the exhalation unit from the exhalation control panels 202 to 204, the failure point of the failed exhalation unit has a time difference corresponding to the communication period. .

At this time, if there is no contact point for detecting an abnormal power supply, it is assumed that an abnormality occurs in a time period of (communication period / 2) in order to have the minimum time difference.

For example, if the communication period between the platform and the call period of an elevator running at 120m / min is 50ms, then if the power supply breaks down during the communication period, the fault occurs from the next communication period right after the normal communication. (I.e., just before the failure detection).

At this time, if the median value is 25ms, it is the minimum failure point on average.

Therefore, the maximum error distance that can occur due to the error of the failure point estimation is about 120 * 0.025 / 60 = 0.05 (m) = 5 (cm).

This is the maximum distance of error that can occur and is actually smaller than this, and this error can be neglected in rescue operation.

In the case where the information on one unit is stored in the terminal terminals 208A to 208B and 209A to 209B, there is no countermeasure if a failure occurs. Therefore, the terminal terminals 208A to 208B and 209A to 209B each have one or more units. Save information about.

As described in detail above, the present invention can reduce the manufacturing cost because no separate hardware is required for detecting the location of the fault exhalation unit, and because some position values of each unit are stored in one or more landing terminal terminals, Even has the effect of performing accurate rescue operation.

Claims (7)

In an elevator control apparatus in which a plurality of elevators travel a plurality of floors in a common hoistway and transmit exhalation information serially through a single transmission path, the current position information and speed information of the cage and load information in the cage are calculated. Stores the corresponding exhalation information among a plurality of exhalation control panels transmitted every predetermined period and exhalation information transmitted from the exhalation control panels, and transmits the location information of the failed exhalation during rescue operation due to a failure exhalation of the exhalation control panels. A group management to control a plurality of platform terminals and the overall operation of the elevator operation, and obtain a predicted stop position value by inputting the position information of the failure exhalation received from the plurality of platform terminals to transmit to the rescue unit of the plurality of exhalation control panel Composed of a control panel to rescue rescue operation Rescue and operation of the elevator, characterized in that performed. The rescue apparatus for an elevator according to claim 1, wherein the plurality of exhalation control panels transmit and store exhalation information to one or more landing terminals among the plurality of landing terminals. The apparatus of claim 1, wherein the plurality of platform terminals comprises: a first memory for storing the deceleration and the brake operation delay time of the brakes by weight; a second memory for storing corresponding information among information received from each air control panel; and the second memory. An elevator rescue apparatus, comprising: communication means for transmitting information stored in a memory. The plurality of platform terminals include a first memory for storing the deceleration and the brake operation delay time of the brakes by weight, a second memory for storing or updating information transmitted from a specific unit of the plurality of breath control panels, and the first memory during rescue operation. Predicted stop position calculating means for calculating a slip distance by using the stored information of the memory, and a current position and the predicted information of a specific breath stored in the second memory and transferring information transmitted from the plurality of breath control panels to a second memory; An elevator rescue operation apparatus comprising a communication means for transmitting a position value calculated by the position calculating means. The rescue operation apparatus for an elevator according to claim 1, wherein the military management control panel transmits the most plurality of values of the predicted information position values transmitted from the plurality of landing terminals during the rescue operation to the rescue unit. A first step of periodically determining whether the current position, speed, and load weight in the cage are received; a second step of updating the periodically received exhalation information; and if no exhalation information is received within the period A third step of detecting abnormality of the corresponding breath; and a fourth step of requesting transmission of breath information and repeating from the first step if there is no abnormality in the corresponding breath; And a fifth step of calculating a predicted stop position of the fault exhalation step, and a sixth step of performing a rescue operation by obtaining a position difference value between the predicted stop position value and the rescue breath. 7. The rescue operation method for an elevator according to claim 6, wherein the fifth step includes calculating an error of the predicted stop position by assuming a failure time within 1/2 of a communication period.