CN109132767B - Car flat layer and position detection system - Google Patents
Car flat layer and position detection system Download PDFInfo
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- CN109132767B CN109132767B CN201811272133.9A CN201811272133A CN109132767B CN 109132767 B CN109132767 B CN 109132767B CN 201811272133 A CN201811272133 A CN 201811272133A CN 109132767 B CN109132767 B CN 109132767B
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- 238000006243 chemical reaction Methods 0.000 claims description 6
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
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- Indicating And Signalling Devices For Elevators (AREA)
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Abstract
The invention discloses a car leveling and position detecting system, which comprises an elevator shaft, a control cabinet and a car, wherein a guide rail is arranged on the wall of the elevator shaft, a traction machine for traction of the car is arranged at the top of the elevator shaft, a stepped partition plate is arranged on the guide rail corresponding to each floor, a floor sensor is arranged on the car, a plurality of opposite-emission photoelectric sensors are arranged on the floor sensor and are divided into a leveling detecting module ELD and a position detecting module FLD, the leveling sensor and a re-leveling sensor of an original elevator are replaced, leveling control and position detection of the elevator car can be realized, the system can work independently of an encoder, the control cabinet can be used for quickly leveling and reconfirming the absolute position of the car when the elevator is in abnormal conditions such as slipping or power failure, and the like.
Description
Technical Field
The invention relates to the field of elevator floor detection and leveling adjustment, in particular to a car leveling and position detection system.
Background
In the existing elevator industry leveling detection application technology, a hoistway clapboard (or a magnet) and a car roof leveling sensor are generally used for realizing an elevator leveling, specifically, a photoelectric sensor which is arranged on a car roof is shielded (close) by adding the clapboard (or the magnet) on a guide rail of a hoistway, so that a control cabinet obtains signals of the car leveling, and meanwhile, a similar sensor (re-leveling sensor) is respectively added at the upper and lower proper positions of the leveling sensor, namely, the re-leveling function of correcting the stop position of the car in the loading or unloading period (load change) after the elevator stops can be realized, wherein the leveling principle is that the control cabinet enters crawling operation after obtaining signals of the car leveling, and the accurate leveling is realized by counting the pulse number of a traction machine encoder; the re-leveling is that when the elevator stops and during loading or unloading, the traction rope is lengthened or shortened, so that the upper/lower re-leveling sensors lose detection signals, the control cabinet can obtain the sinking/floating information of the elevator car, so as to send out re-leveling instructions until the detection signals of the two re-leveling sensors are obtained again, and the elevator car runs daily, the floor information of the elevator car is determined by reading the layer height (obtained by debugging) table stored in the value-added encoder of the traction machine in cooperation with the program in real time through a microcomputer, but the scheme has the following defects:
1. the control cabinet needs 3 sensors to be matched with the encoder of the traction machine to finish leveling and re-leveling functions, and the leveling device of the elevator depends on the encoder of the traction machine to work, so that once the encoder of the traction machine has abnormal conditions, the leveling precision of the elevator car cannot be guaranteed.
2. The elevator can not obtain the absolute position of the elevator car, namely the floor where the elevator car is located, if abnormal conditions such as power failure or slipping occur, the control cabinet can lose the floor information of the elevator car, at the moment, the elevator can only travel to an end station at a low speed, the floor information of the elevator car can be obtained again through a limit sensor of the end station of a shaft, the elevator reconfirms the position, time is spent, unnecessary panic of trapped people can be caused due to the fact that the elevator needs to travel for a long time to find the position slowly when a trapped person occurs, particularly a fire ladder or a high-speed elevator with high lifting height, after the occurrence of the fault floor, the elevator car floor information is not allowed to be reconfirmed through the limit sensor of the end station of the shaft, and the existing technology is that the SIE system (value-added encoder+battery) or the SAE system (absolute value encoder) additionally arranged on the speed limiter is utilized to record and save the absolute position of the elevator car, so that the quality requirement and the installation accuracy requirement of the whole system are high in order to ensure the use of the product in the field. Therefore, in the prior art, when dealing with such a situation, not only the cost is greatly increased, but also the complexity of the system is increased, and the failure rate of the system is theoretically increased.
3. The moving direction of the car cannot be obtained, and when the elevator fails or the traction machine encoder fails, the leveling device of the existing elevator cannot be used as an auxiliary machine room-less system for controlling the moving direction and leveling precision of the car in emergency rescue, in particular to inconvenient maintenance and rescue.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a car leveling and position detecting system which is simple in system structure, cost-saving and high in reliability.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a car flat bed and position detection system, includes elevator shaft, switch board and car, install on the wall of a well of elevator shaft along the guide rail that elevator shaft direction of height was arranged, be installed at the top of elevator shaft and be used for pulling the car is followed the hauler that the guide rail made longitudinal movement, the ladder baffle is all installed to the position that corresponds every floor on the guide rail, install on the car with the floor inductor that the switch board electricity is connected, the floor inductor is the notch can adapt to the fork structure of ladder baffle, install a plurality of correlation formula photoelectric sensor on the both sides fork of floor inductor, and divide into flat bed detection module ELD and position detection module FLD, the ladder baffle divides the longitudinal region according to actual floor number, and one of them longitudinal region is flat bed detection area, and the remaining longitudinal region is the position detection area, flat bed detection area is provided with a plurality of edges the length direction of ladder baffle arranges the oblique broach, the position detection area is provided with a plurality of long and short ladder.
The number of the strips is the same as that of the photoelectric sensors of the position detection module FLD.
The centers of all longitudinal areas divided by the stepped partition plates are all positioned on the same horizontal line.
The number of the photoelectric sensors of the flat layer detection module ELD is two or more.
The system comprises the following implementation flow of leveling detection and re-leveling control:
(1) The total length of the inclined comb teeth defining the flat layer detection area is L, the angle formed by the inclined comb teeth and the horizontal is alpha, the length of a single comb tooth is M, the number of the comb teeth is K, the number of the photoelectric sensors of the flat layer detection module ELD is T, and the distance value between the photoelectric sensors is H.
(2) When the elevator reaches a target floor, the elevator starts to slow down, the flat layer detection area of the corresponding stepped partition plate slides into the notch of the floor detection sensor, and inclined comb teeth in the area are scanned by the photoelectric sensors of the flat layer detection module ELD to form flat layer coding pulses, wherein each photoelectric sensor of the flat layer detection module ELD independently outputs one path of flat layer coding pulse.
(3) When the number of flat layer encoding pulses calculated by the flat layer detection module ELD isAnd (3) continuing crawling until all photoelectric sensors of the leveling detection module ELD are shielded, and judging that the lift car is at the leveling position of the floor at the moment.
(4) When the elevator is in a flat layer position and in a loading or unloading state, the floor sensor and the stepped partition board are relatively displaced due to load change, so that a certain part of photoelectric sensors of the flat layer detection module ELD are not shielded, and the control cabinet controls the elevator to ascend or descend, so that the elevator car is restored to the flat layer state again, and all the photoelectric sensors of the flat layer detection module ELD are shielded again.
The number K of the comb teeth in the step 1 is an odd number greater than two.
The car position detection implementation flow of the system is as follows:
(1) The number of the battens defining the floor number as L and the position detection area and the number of the photoelectric sensors of the position detection module FLD as N, and the battens with different lengths are divided into P 1 、P 2 、P 3 ···P N Photoelectric sensor of position detection module FLD is divided into FLD 1 、FLD 2 、FLD 3 ···FLD N 。
(2) To (1)In the method, all the strips are arranged and combined to form an information summary table, L pieces of data information are selected from the information summary table and are matched with all the floor numbers to form a floor information table.
(3) And installing each stepped partition board at the corresponding floor position according to the floor number of the floor information table, and arranging the positions of the battens with different lengths in the position detection area by corresponding data information of each stepped partition board.
(4) When the elevator climbs to the flat floor position, the position detection area of the stepped partition plate slides into the notch of the floor detection sensor, and the photoelectric sensor of the position detection module FLD scans all the battens in the position detection area to form N paths of position coding pulses.
(5) And comparing the level conversion time of each path of position coding pulse, and arranging the level conversion time in a time sequence mode, wherein each path of position coding pulse represents an independent lath, so that the floor information carried by the stepped partition board is measured, and the current floor position of the car is obtained.
The floor sensor is mounted on top of the car.
The beneficial effects of the invention are as follows: the invention comprises an elevator shaft, a control cabinet and a lift car, wherein a guide rail is arranged on the wall of the elevator shaft, a traction machine for traction of the lift car is arranged at the top of the elevator shaft, a stepped baffle is arranged on the guide rail corresponding to each floor, a floor sensor is arranged on the lift car, a plurality of opposite-emission photoelectric sensors are arranged on the floor sensor and are divided into a flat layer detection module ELD and a position detection module FLD, the elevator control system can work independently of the encoder, ensures that the control cabinet can quickly level and reconfirm the absolute position of the elevator car when the elevator is in an abnormal condition such as slipping or power failure and the like, and has the advantages of simple structure and high reliability.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of a floor sensor;
FIG. 3 is a schematic view of a stepped separator;
fig. 4 is a schematic diagram of the working principle of the elevator leveling and re-leveling of the present embodiment;
fig. 5 is a schematic diagram of the operation principle of the elevator position detection of the present embodiment.
Detailed Description
Referring to fig. 1, a car leveling and position detecting system, including elevator shaft 1, switch board 2 and car 3, install on the wall of a well of elevator shaft 1 along elevator shaft 1 direction of height's guide rail 4 arranges, install at the top of elevator shaft 1 and be used for drawing car 3 is followed guide rail 4 makes longitudinal movement's hauler 5, the ladder baffle 6 is all installed to the position that corresponds every floor on guide rail 4, install on the car 3 with the floor inductor 7 that switch board 2 electricity is connected, floor inductor 7 can adapt to for the notch ladder structure of ladder baffle 6, when guaranteeing that the elevator removes, ladder baffle 6 just can slide the notch in the middle of the fork structure to by floor inductor 7 detects, referring to fig. 2, install a plurality of correlation formula photoelectric sensor on the both sides fork of floor inductor 7, and divide into flat layer detection module ELD8 and position detection module FLD9, referring to fig. 3, ladder baffle 6 divides according to actual division longitudinal division, wherein the floor inductor 7 is provided with a plurality of vertical division area, and the length of floor inductor 11 is provided with a plurality of vertical division area, and the length of floor inductor 11 is provided with a plurality of vertical division area is provided with a plurality of floor inductor 11.
The number of the strips 13 is the same as that of the photosensors of the position detection module FLD 9.
The centers of the longitudinal areas divided by the stepped partition boards 6 are all positioned on the same horizontal line, when the elevator is positioned on a flat floor, the floor sensor 7 can be just aligned to the middle line of the stepped partition boards 6, and detection signals of the floor sensor 7 are uniformly sent to a control cabinet microcomputer for measuring and calculating the positions of the flat floor and the floor of the elevator car.
The number of the photoelectric sensors of the flat layer detection module ELD8 is two or more.
The system comprises the following implementation flow of leveling detection and re-leveling control:
(1) The total length of the inclined comb teeth defining the flat layer detection area is L, the angle formed by the inclined comb teeth and the horizontal plane is alpha, the length of a single comb tooth is M, the number of the comb teeth is K (the number is an odd number greater than two), the number of the photoelectric sensors of the flat layer detection module ELD is T, and the distance value between the photoelectric sensors is H.
(2) When the elevator reaches a target floor, the elevator starts to slow down, the flat layer detection area of the corresponding stepped partition plate slides into the notch of the floor detection sensor, and inclined comb teeth in the area are scanned by the photoelectric sensors of the flat layer detection module ELD to form flat layer coding pulses, wherein each photoelectric sensor of the flat layer detection module ELD independently outputs one path of flat layer coding pulse.
(3) When the number of flat layer encoding pulses calculated by the flat layer detection module ELD isAnd (3) continuing crawling until all photoelectric sensors of the leveling detection module ELD are shielded, and judging that the lift car is at the leveling position of the floor at the moment.
(4) When the elevator is in a flat layer position and in a loading or unloading state, the floor sensor and the stepped partition board are relatively displaced due to load change, so that a certain part of photoelectric sensors of the flat layer detection module ELD are not shielded, and the control cabinet controls the elevator to ascend or descend, so that the elevator car is restored to the flat layer state again, and all the photoelectric sensors of the flat layer detection module ELD are shielded again.
Wherein, the total length L of the oblique comb teeth of each stepped baffle and the number K of the comb teeth are the same, the horizontal angle alpha of the comb teeth, the length M of the single comb teeth and the distance value H of the sensor of the leveling detection module ELD are used for adjusting the leveling control precision of the elevator according to actual requirements in the system design.
Referring to fig. 4, in the present embodiment, the number of photosensors T of the leveling detection module ELD is 2, the number of comb teeth K is 5, respectively, the greater the distance H between ELD1 and ELD2, the smaller the precise leveling area where the ELD1 and ELD2 generate the signal overlap that is blocked, the higher the system leveling accuracy control and the higher the re-leveling control sensitivity are, but the less stable the leveling system is; the greater the H, the greater the accurate leveling zone where the ELD1 and ELD2 overlap, the smaller the re-leveling zone, the lower the elevator system will control the leveling accuracy of the car, and the lower the re-leveling control sensitivity, but the more stable the leveling system, the part a and part B of fig. 4 are leveling coded pulses output by ELD1 and ELD2 when the elevator is descending and ascending, respectively, when the number of leveling coded pulses is 3 and the leveling coded pulses of ELD1 and ELD2 are both high, the elevator is determined to enter the accurate leveling zone, and the elevator is started to control in the leveling, when the leveling coded pulses output by ELD1 and ELD2 are no longer high, the elevator is determined to be relatively displaced due to loading or unloading, and the control cabinet will control the elevator to displace, so that the ELD1 and ELD2 re-output high-level leveling coded pulses.
The car position detection implementation flow of the system is as follows:
(1) The number of the battens defining the floor number as N and the position detection area and the number of the photoelectric sensors of the position detection module FLD as N, and the battens with different lengths are divided into P 1 、P 2 、P 3 ···P N Photoelectric sensor of position detection module FLD is divided into FLD 1 、FLD 2 、FLD 3 ···FLD N 。
(2) To (1)In the method, all the strips are arranged and combined to form an information summary table, L pieces of data information are selected from the information summary table and are matched with all the floor numbers to form a floor information table.
(3) And installing each stepped partition board at the corresponding floor position according to the floor number of the floor information table, and arranging the positions of the battens with different lengths in the position detection area by corresponding data information of each stepped partition board.
(4) When the elevator climbs to the flat floor position, the position detection area of the stepped partition plate slides into the notch of the floor detection sensor, and the photoelectric sensor of the position detection module FLD scans all the battens in the position detection area to form N paths of position coding pulses.
(5) And comparing the level conversion time of each path of position coding pulse, and arranging the level conversion time in a time sequence mode, wherein each path of position coding pulse represents an independent lath, so that the floor information carried by the stepped partition board is measured, and the current floor position of the car is obtained.
Referring to FIG. 5, in the present embodiment, the floor number L is 5, the number of slats in the position detection area and the number N of photosensors of the position detection module FLD are 5, and each slat with different lengths is divided into P 1 、P 2 、P 3 、P 4 And P 5 Photoelectric sensor of position detection module FLD is divided into FLD 1 、FLD 2 、FLD 3 、FLD 4 And FLD (flash light d) 5 ToIn the way of (1) arranging and combining 120 battens to form an information summary table, selecting 5 pieces of data information from the information summary table to be matched with each floor number to form a floor information table, wherein the floor information table is respectively P 1 P 2 P 3 P 4 P 5 -5FL、P 1 P 2 P 3 P 5 P 4 -4FL、P 1 P 2 P 4 P 5 P 3 -3FL、P 1 P 3 P 4 P 5 P 2 -2FL and P 2 P 3 P 4 P 5 P1-1FL,5 battens with different lengths of 5 ladder-type clapboards are arranged corresponding to data information of a floor information table; part C of FIG. 5 is the FLD when the elevator is climbing 1 、FLD 2 、FLD 3 、FLD 4 And FLD (flash light d) 5 Scanning position coding pulses output by each step type partition board, wherein a part D of fig. 4 is strip arrangement information detected by a floor sensor 7, and a part E of fig. 5 is an elevator position detected by a system; if the emergency stop or power failure and other slipping abnormal conditions occur, the control cabinet loses the floor information of the elevator car, after the elevator is electrified again, the elevator is started at a low speed, the floor sensor auxiliary system carries out floor control on the elevator and searches for floor coding pulses, after the elevator finishes a floor, the absolute position of the elevator car can be obtained again so as to facilitate the normal service of the elevator next time, if the elevator car is just positioned at an upper end station or a lower end station, the elevator car impacts a limit switch through a traditional method to obtain the floor information, and the elevator passesThe elevator can re-confirm the absolute position of the car by at most slowly driving one floor, so that the time for re-searching the position of the elevator is greatly shortened.
When the elevator breaks down seriously or is powered off to cause a trapped event, the traction machine encoder fails, and the traction machine encoder relates to elevator operation control, connection and switching are generally not allowed, in the process of rescuing people by jigger, the elevator can be independently powered on by the elevator system, signals are obtained through switching, the moving direction and speed of the elevator car and the leveling condition are judged in an auxiliary mode through the floor sensor, and the elevator system is very beneficial to rescue of trapped people.
The elevator floor leveling control device uses the stepped partition plate to replace a common partition plate of an elevator, replaces a leveling sensor and a re-leveling sensor by a floor sensor on the top of the elevator, can realize leveling control and position detection of the elevator car without a plurality of sensors, can work independently of an encoder, ensures that a control cabinet can quickly level and reconfirm the absolute position of the elevator car when the elevator is in abnormal conditions such as slipping or power failure, and has the advantages of low cost and high reliability.
The above embodiments do not limit the protection scope of the invention, and those skilled in the art can make equivalent modifications and variations without departing from the whole inventive concept, and they still fall within the scope of the invention.
Claims (4)
1. The elevator car leveling and position detection system comprises an elevator shaft (1), a control cabinet (2) and an elevator car (3), wherein guide rails (4) which are arranged along the height direction of the elevator shaft (1) are arranged on the wall of the elevator shaft (1), traction machines (5) which are used for dragging the elevator car (3) to move longitudinally along the guide rails (4) are arranged at the tops of the elevator shaft (1), the elevator car leveling and position detection system is characterized in that step-type separation plates (6) are arranged at positions, corresponding to each floor, on the guide rails (4), of the elevator car (3), floor inductors (7) which are electrically connected with the control cabinet (2) are arranged on the elevator car (3), the floor inductors (7) are fork structures, the notches of which can adapt to the step-type separation plates (6), a plurality of opposite-type photoelectric sensors are arranged on two side prongs of the floor inductors (7), the elevator car leveling detection modules ELD (8) and the position detection modules FLD (9) are divided into a plurality of level-type detection modules, the step-type separation plates (6) are divided into a plurality of actual longitudinal division areas, a plurality of level detection areas (10) are arranged along the length of the longitudinal division areas (12), and a plurality of the level detection areas (11) are arranged in the longitudinal division areas, and the longitudinal detection areas (12 are provided with the horizontal detection areas (12);
the number of the strips (13) is the same as that of the photoelectric sensors of the position detection module FLD (9);
the centers of all longitudinal areas divided by the stepped partition plates (6) are all positioned on the same horizontal line;
the number of the photoelectric sensors of the flat layer detection module ELD (8) is two or more;
the system comprises the following implementation flow of leveling detection and re-leveling control:
(1) Defining the total length of oblique comb teeth of a flat layer detection area as L, the angle formed by the oblique comb teeth and the horizontal plane as alpha, the length of a single comb tooth as M, the number of comb teeth as K, the number of photoelectric sensors of the flat layer detection module ELD as T and the distance value between the photoelectric sensors as H;
(2) When the elevator reaches a target floor, starting to slow down, sliding a flat layer detection area of a corresponding stepped partition plate into a notch of a floor detection sensor, and scanning inclined comb teeth in the area by photoelectric sensors of a flat layer detection module ELD to form flat layer coding pulses, wherein each photoelectric sensor of the flat layer detection module ELD independently outputs one path of flat layer coding pulse;
(3) When the number of flat layer encoding pulses calculated by the flat layer detection module ELD isWhen the car is in the leveling position of the floor, the car is judged to be in the leveling position of the floor at the moment, and crawling is continued until all photoelectric sensors of the leveling detection module ELD are shielded;
(4) When the elevator is in a leveling position and in a loading or unloading state, the floor sensor and the stepped partition board are relatively displaced due to load change, so that a certain part of photoelectric sensors of the leveling detection module ELD are not shielded, and the control cabinet controls the elevator to ascend or descend to restore the elevator car to the leveling state again, so that all the photoelectric sensors of the leveling detection module ELD are shielded again;
(5) If emergency stop or abnormal power failure occurs, the control cabinet loses floor information of the elevator car, after the elevator is electrified again, the elevator is started at a low speed, the floor sensor auxiliary system carries out leveling control on the elevator and searches for leveling coding pulses, the absolute position of the elevator car can be obtained again after the elevator finishes leveling, so that the elevator can be normally put into service next time, if the elevator car is just located at an upper end station or a lower end station, floor information is obtained by striking a limit switch through a traditional method, and the elevator can slowly travel one floor at most in the process, so that the absolute position of the elevator car can be reconfirmed;
(6) When the elevator breaks down seriously or is powered off to cause a trapped event, the traction machine encoder fails, and the traction machine encoder relates to elevator operation control, the system is independently powered in the process of rescuing people by jigger, signals are acquired in a switching mode, and the moving direction and speed of the elevator car and the leveling condition are judged in an auxiliary mode through the floor sensor.
2. The car leveling and position detecting system according to claim 1, wherein the number K of the comb teeth in the step 1 is an odd number greater than two.
3. The car leveling and position detection system according to claim 1, wherein the car position detection implementation flow of the system is as follows:
(1) The number of the battens defining the floor number as L and the position detection area and the number of the photoelectric sensors of the position detection module FLD as N, and the battens with different lengths are divided into P 1 、P 2 、P 3 ···P N Photoelectric sensor of position detection module FLD is divided into FLD 1 、FLD 2 、FLD 3 ···FLD N ；
(2) To (1)Each strip is arranged and combined to form an information summary table, L pieces of data information are selected from the information summary table and are matched with each floor number to form a floor information table;
(3) Installing each stepped partition board at the corresponding floor position according to the floor number of the floor information table, and arranging the strip positions with different lengths in the position detection area by corresponding data information of each stepped partition board;
(4) When the elevator climbs to a flat floor position, the position detection area of the stepped partition plate slides into the notch of the floor detection sensor, and the photoelectric sensor of the position detection module FLD scans all the battens in the position detection area to form N paths of position coding pulses;
(5) And comparing the level conversion time of each path of position coding pulse, and arranging the level conversion time in a time sequence mode, wherein each path of position coding pulse represents an independent lath, so that the floor information carried by the stepped partition board is measured, and the current floor position of the car is obtained.
4. A car leveling and position detection system according to claim 1, characterized in that said floor sensor (7) is mounted on top of said car (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811272133.9A CN109132767B (en) | 2018-10-29 | 2018-10-29 | Car flat layer and position detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811272133.9A CN109132767B (en) | 2018-10-29 | 2018-10-29 | Car flat layer and position detection system |
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| CN109132767B true CN109132767B (en) | 2023-12-26 |
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| CN110092253B (en) * | 2019-04-30 | 2021-07-30 | 上海三菱电梯有限公司 | System and method for correcting calibration position of car absolute position measurement system |
| CN110759194B (en) * | 2019-10-25 | 2022-01-14 | 上海新时达电气股份有限公司 | Control method and control system using flat layer plugboard |
| CN110921454A (en) * | 2019-11-21 | 2020-03-27 | 陕西威斯特高新技术投资有限公司 | Control method and device for building automatic elevator |
| CN114436104B (en) * | 2020-10-30 | 2024-05-07 | 蒂升家用电梯(上海)有限公司 | Elevator leveling induction system and implementation method thereof |
| CN114436105B (en) * | 2020-10-30 | 2024-05-07 | 蒂升家用电梯(上海)有限公司 | Fault detection method of elevator leveling induction system |
| CN113511570A (en) * | 2021-04-30 | 2021-10-19 | 浙江大华技术股份有限公司 | Elevator control method, device, monitoring equipment and system |
| CN114590662B (en) * | 2022-02-22 | 2024-05-03 | 中控技术股份有限公司 | Reciprocating elevator control method and reciprocating elevator |
| CN114538233B (en) * | 2022-03-10 | 2022-10-25 | 阿特拉斯智能工程(南通)有限公司 | Instrument manufacturing detection system based on big data |
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| WO2008114529A1 (en) * | 2007-03-20 | 2008-09-25 | Hitachi, Ltd. | Safety system of elevator |
| JP2011063354A (en) * | 2009-09-16 | 2011-03-31 | Hitachi Ltd | Elevator system |
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