CN109132767A - A kind of lift car leveling and position detecting system - Google Patents
A kind of lift car leveling and position detecting system Download PDFInfo
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- CN109132767A CN109132767A CN201811272133.9A CN201811272133A CN109132767A CN 109132767 A CN109132767 A CN 109132767A CN 201811272133 A CN201811272133 A CN 201811272133A CN 109132767 A CN109132767 A CN 109132767A
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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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a kind of lift car leveling and position detecting systems, including elevator, control cabinet and carriage, guide rail is installed on the borehole wall of elevator, traction machine for drawing carriage is installed at the top of elevator, the position that each floor is corresponded on guide rail is mounted on staged partition, floor inductor is installed in carriage, several correlation photoelectric sensors are installed on floor inductor, and it is divided into leveling detection mould group ELD and position detection mould group FLD, the leveling inductor of the former elevator of substitution and again leveling inductor, and it is able to achieve the leveling control and position detection of lift car, and this system can work independently of encoder, when ensuring that the abnormal conditions such as skidding or power-off occur for elevator, control cabinet being capable of quick leveling, and reaffirm the absolute position of carriage, it is simple with structure, the advantages of high reliablity.
Description
Technical field
The present invention relates to elevator floor detections and leveling to adjust field, especially a kind of lift car leveling and position detection system
System.
Background technique
It generally will use hoistway partition (or magnet) and car top leveling in the application technology of elevator industry leveling detection at present
Inductor realizes Elevator landing, specifically, being to block (close) peace by installing partition (or magnet) additional on the guide rail of hoistway
Photoelectric sensor in car top makes control cabinet obtain the signal of lift car leveling, while the position appropriate above and below leveling inductor
One similar sensor (level transducer again) of each installation is set, it is (negative during loading or unloading after elevator stopping can be realized
Weight changes) it is corrected the story-leveling function again of carriage stop position, wherein and leveling principle is that control cabinet obtains the letter of lift car leveling
Enter creep operation after number, and realizes accurate level by counting traction machine encoder pulse number；Leveling is when elevator stops again
Afterwards during loading or unloading, traction rope extends or shortens, and leading to up/down, level transducer loses detection signal, control cabinet again
It can be obtained carriage sinking/floating information, instructed to issue again leveling, until regaining two level transducer inspections again
Signal is surveyed, and day-to-day operation, the floor information of carriage are to read the increment encoder matching program of traction machine in real time by microcomputer
Table carries out judgement of tabling look-up to the layer of internal reservoir high (debugging obtains), but the program has the disadvantage in that
1, control cabinet needs 3 sensors and the cooperation of traction machine encoder that could complete leveling and story-leveling function, and elevator again
Leveling device rely on traction machine encoder work, once there is abnormal conditions, the langding accuracy of carriage in the encoder of traction machine
Also it is unable to get guarantee.
2, the absolute position of carriage can not be obtained --- i.e. locating floor, if the abnormal conditions such as power-off or skidding occur,
Control cabinet will lose the floor information of carriage, at this point, elevator can only travel at a slow speed to end station, be sensed by the limit of hoistway end station
Device regains carriage floor information, and elevator reaffirms that position not only spends the time, when oppressive event occurs, due to needing
Position is found in long-time slow running, can also cause the unnecessary fear of trapped person, especially fire-fighting rack or hoisting depth
High high speed ladder, after staggered floor occurs, does not allow to reaffirm carriage floor information, mesh by the limit sensor of hoistway end station
Preceding technology is to utilize the SIE system (increment encoder+battery) or SAE system (absolute value encoder) installed additional in limiter of speed,
The absolute position of carriage is recorded and saved, in order to guarantee that the high-performance of product at the scene uses, to the matter of whole system
Amount requires and installation accuracy requirement is all very high.Therefore, the prior art not only greatly increases cost when coping with such situation,
Also add the complexity of system, nominal increase system failure rate.
3, the moving direction that can not obtain carriage, when elevator faults or the failure of traction machine encoder, existing elevator is put down
Layer device can not be used for the control of the moving direction and langding accuracy of carriage when emergency relief as auxiliary, especially safeguard and rescue
Help inconvenient machine room system.
Summary of the invention
For overcome the deficiencies in the prior art, it is simple, save the cost, high reliablity to provide a kind of system structure by the present invention
A kind of lift car leveling and position detecting system.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of lift car leveling and position detecting system, including elevator, control cabinet and carriage, on the borehole wall of the elevator
Guide rail along elevator short transverse arrangement is installed, is equipped at the top of the elevator for drawing the carriage edge
The traction machine that the guide rail travels longitudinally, the position that each floor is corresponded on the guide rail are mounted on staged partition, institute
The floor inductor for being equipped in carriage and being electrically connected with the control cabinet is stated, the floor inductor is that recess adapts to the rank
The fork configuration of ladder type partition, the two sides of the floor inductor pitch and are equipped with several correlation photoelectric sensors on branch, and draw
It is divided into leveling detection mould group ELD and position detection mould group FLD, the staged partition divides vertical area according to practical number of floor levels,
The area Zhong Yizong is leveling detection zone, and the vertical area of residue is position detection region, and the leveling detection zone is provided with several along institute
The oblique comb teeth of the length direction arrangement of staged partition is stated, the position detection region is provided with several laths different in size.
The quantity of the lath is identical as the photoelectric sensor quantity of the position detection mould group FLD.
The center in each vertical area of the staged separator lined is in same horizontal line.
The photoelectric sensor quantity of the leveling detection mould group ELD is two or more.
The leveling detection of the system and the control of leveling again implementation process are as follows:
(1), the oblique comb teeth total length for defining leveling detection zone is L, is α with the angle being horizontally formed, single comb teeth is long
Degree is M, and comb teeth quantity is K, and the photoelectric sensor number that leveling detects mould group ELD is the distance between T and photoelectric sensor
Value is H.
(2), start reduction of speed when elevator is up to target zone, the leveling detection zone of corresponding staged partition slides into building
The indent of layer detection inductor, and the oblique comb teeth in region is scanned and shape by the photoelectric sensor of leveling detection mould group ELD
At leveling coded pulse, wherein each photoelectric sensor of leveling detection mould group ELD individually exports leveling coding arteries and veins all the way
Punching.
(3), when the leveling detection calculated leveling coded pulse number of mould group ELD isWhen, continue to creep, until leveling
Detection mould group ELD all photoelectric sensors are blocked, and then determine that carriage is in the level position of the floor at this time.
(4), when elevator is in level position and in loading or unloading state, floor inductor and staged partition are because bearing
Change again and relative displacement occurs, allows certain part photoelectric sensor of leveling detection mould group ELD not to be blocked, control cabinet then controls
Ascending for elevator or downlink allow carriage to reform into leveling state, so that all photoelectric sensings of leveling detection mould group ELD are thought highly of
Newly it is blocked.
The numerical value of the comb teeth quantity K of the step 1 is the odd number greater than two.
The car position detection implementation process of the system is as follows:
(1), the photoelectric sensor that number of floor levels is L, the lath quantity in position detection region and position detection mould group FLD is defined
Quantity is N, and each lath different in size is divided into P1、P2、P3···PN, the photoelectric sensor stroke of position detection mould group FLD
It is divided into FLD1、FLD2、FLD3···FLDN。
(2), withMode each lath is subjected to permutation and combination, configuration information summary table picks out in information summary table
L data information and each floor number phase are right, constitute floor information table.
(3), each staged partition is mounted on by corresponding floor position with the floor number of floor information table, each staged every
Plate is with lath position different in size each in corresponding data information arrangement position detection zone.
(4), when elevator is creeped to level position, the position detection region of staged partition slides into floor and detects inductor
Indent, each lath in the photoelectric sensor scan position detection zone of position detection mould group FLD forms the position on the road N
Set coded pulse.
(5), it the level translation time for comparing each position encoded pulse in road, is arranged in the mode that timing is successive, and it is every
The position encoded pulse in road represents an independent lath, to measure floor information entrained by the staged partition, obtains sedan-chair
Compartment current floor position.
The floor inductor is mounted on the top of the carriage.
The beneficial effects of the present invention are: of the invention includes elevator, control cabinet and carriage, installed on the borehole wall of elevator
There is guide rail, the traction machine for drawing carriage is installed at the top of elevator, the position that each floor is corresponded on guide rail is respectively mounted
There is staged partition, floor inductor is installed in carriage, several correlation photoelectric sensors are installed on floor inductor, and
It is divided into leveling detection mould group ELD and position detection mould group FLD, replaces the leveling inductor and leveling inductor again of former elevator,
And it is able to achieve the leveling control and position detection of lift car, and this system can work independently of encoder, it is ensured that elevator occurs
Skid or when the abnormal conditions such as power-off, control cabinet can quick leveling, and reaffirm the absolute position of carriage, there is structure letter
The advantages of list, high reliablity.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the top view of floor inductor；
Fig. 3 is the structural schematic diagram of staged partition；
Fig. 4 is the present embodiment Elevator landing and the operation principle schematic diagram of leveling again；
Fig. 5 is the operation principle schematic diagram of the present embodiment elevator position detection.
Specific embodiment
Referring to Fig.1, a kind of lift car leveling and position detecting system, including elevator 1, control cabinet 2 and carriage 3, the electricity
Guide rail 4 along 1 short transverse of elevator arrangement is installed, the top installation of the elevator 1 is useful on the borehole wall of stair shaft 1
It is equal in the position for corresponding to each floor on the traction machine 5 that the traction carriage 3 travels longitudinally along the guide rail 4, the guide rail 4
Staged partition 6 is installed, the floor inductor 7 being electrically connected with the control cabinet 2, the floor are installed in the carriage 3
Inductor 7 is the fork configuration that recess adapts to the staged partition 6, and when guaranteeing that elevator is mobile, staged partition 6 just may be used
It to slip over the recess among fork configuration, and is detected by floor inductor 7, referring to Fig. 2, the two sides of the floor inductor 7
Several correlation photoelectric sensors are installed on fork branch, and are divided into leveling detection mould group ELD8 and position detection mould group FLD9,
Referring to Fig. 3, the staged partition 6 divides vertical area according to practical number of floor levels, wherein a vertical area is leveling detection zone 10, it is remaining
Vertical area is position detection region 11, and the leveling detection zone 10 is provided with several length directions along the staged partition 6
The oblique comb teeth 12 of arrangement, the position detection region 11 are provided with several laths 13 different in size, and the floor inductor 7 is pacified
Mounted in the top of the carriage 3.
The quantity of the lath 13 is identical as the photoelectric sensor quantity of the position detection mould group FLD9.
The center in each vertical area that the staged partition 6 divides is in same horizontal line, when elevator is in leveling,
Floor inductor 7 can be just in alignment on the neutrality line of staged partition 6, and the detection signal of floor inductor 7 is uniformly sent to
In control cabinet microcomputer, the measuring and calculating for lift car leveling and floor position is handled.
The photoelectric sensor quantity of the leveling detection mould group ELD8 is two or more.
The leveling detection of the system and the control of leveling again implementation process are as follows:
(1), the oblique comb teeth total length for defining leveling detection zone is L, is α with the angle being horizontally formed, single comb teeth is long
Degree be M, comb teeth quantity be K (numerical value should be the odd number greater than two), leveling detect mould group ELD photoelectric sensor number be T with
And the distance between photoelectric sensor value is H.
(2), start reduction of speed when elevator is up to target zone, the leveling detection zone of corresponding staged partition slides into building
The indent of layer detection inductor, and the oblique comb teeth in region is scanned and shape by the photoelectric sensor of leveling detection mould group ELD
At leveling coded pulse, wherein each photoelectric sensor of leveling detection mould group ELD individually exports leveling coding arteries and veins all the way
Punching.
(3), when the leveling detection calculated leveling coded pulse number of mould group ELD isWhen, continue to creep, until leveling
Detection mould group ELD all photoelectric sensors are blocked, and then determine that carriage is in the level position of the floor at this time.
(4), when elevator is in level position and in loading or unloading state, floor inductor and staged partition are because bearing
Change again and relative displacement occurs, allows certain part photoelectric sensor of leveling detection mould group ELD not to be blocked, control cabinet then controls
Ascending for elevator or downlink allow carriage to reform into leveling state, so that all photoelectric sensings of leveling detection mould group ELD are thought highly of
Newly it is blocked.
Wherein, the oblique comb teeth total length L of each staged partition and comb teeth quantity K are all the same constant, comb teeth horizontal angle α,
The sensor distance value H of single comb teeth length M and leveling detection mould group ELD are used in system design according to actual demand
Carry out the adjustment of Elevator landing control precision.
Referring to Fig. 4, in the present embodiment, the photoelectric sensor number T that leveling detects mould group ELD is 2, and comb teeth quantity K is
5, respectively ELD1 and ELD2, the distance between ELD1 and ELD2 H are bigger, and ELD1 and ELD2 generate the signal overlap being blocked
Accurate level area is smaller, then system is higher to lift car leveling precision controlling, and leveling control susceptibility is higher again, but leveling system
It is more unstable；And H is bigger, the accurate level area that ELD1 and ELD2 generate the signal overlap being blocked is bigger, then leveling zone is smaller,
Then elevator device is lower to lift car leveling precision controlling, and leveling control susceptibility is lower again, but leveling system is more stable, Fig. 4
Part A and part B be respectively elevator in downlink and uplink, the leveling coded pulse that ELD1 and ELD2 are exported, in leveling
When the leveling coded pulse that coded pulse inspection number is 3 and ELD1 and ELD2 is high level, then determine that elevator enters accurate level
Area, and start elevator and controlled in leveling, when the leveling coding arteries and veins that ELD1 and ELD2 is exported is no longer high level, then determine elevator
Because relative displacement occurs for loading or unloading, and control cabinet can control elevator displacement, allow ELD1 and ELD2 to export high level again flat
Layer coded pulse.
The car position detection implementation process of the system is as follows:
(1), the photoelectric sensor that number of floor levels is N, the lath quantity in position detection region and position detection mould group FLD is defined
Quantity is N, and each lath different in size is divided into P1、P2、P3···PN, the photoelectric sensor stroke of position detection mould group FLD
It is divided into FLD1、FLD2、FLD3···FLDN。
(2), withMode each lath is subjected to permutation and combination, configuration information summary table picks out in information summary table
L data information and each floor number phase are right, constitute floor information table.
(3), each staged partition is mounted on by corresponding floor position with the floor number of floor information table, each staged every
Plate is with lath position different in size each in corresponding data information arrangement position detection zone.
(4), when elevator is creeped to level position, the position detection region of staged partition slides into floor and detects inductor
Indent, each lath in the photoelectric sensor scan position detection zone of position detection mould group FLD forms the position on the road N
Set coded pulse.
(5), it the level translation time for comparing each position encoded pulse in road, is arranged in the mode that timing is successive, and it is every
The position encoded pulse in road represents an independent lath, to measure floor information entrained by the staged partition, obtains sedan-chair
Compartment current floor position.
Referring to Fig. 5, number of floor levels L in the present embodiment is 5, the lath quantity in position detection region and position detection mould group
The photoelectric sensor quantity N of FLD is 5, and each lath different in size is divided into P1、P2、P3、P4And P5, position detection mould group FLD
Photoelectric sensor be divided into FLD1、FLD2、FLD3、FLD4And FLD5, withMode each lath arrangement is combined into 120
Lath information, configuration information summary table, picks out 5 data information in information summary table and each floor number phase is right, constitutes building
Layer information table, respectively P1P2P3P4P5-5FL、P1P2P3P5P4-4FL、P1P2P4P5P3-3FL、P1P3P4P5P2- 2FL and
P2P3P4P5P1-1FL, the data information that 5 different laths of length of 5 staged partitions correspond to floor information table are arranged
Column setting；When the C portion of Fig. 5 is creeped for elevator, FLD1、FLD2、FLD3、FLD4And FLD5Each staged partition is scanned to be exported
Position encoded pulse, the part D of Fig. 4 is lath arrangement information detected by floor inductor 7, and the part E of Fig. 5 is system
Detect the elevator position obtained；If the skiddings abnormal conditions such as emergency stop or power failure occur, control cabinet loses the floor information of carriage,
After re-powering, elevator will be started at a slow speed, and floor inductor auxiliary system controls elevator implementation leveling and obtains leveling coding
Pulse can regain the absolute position of carriage, so that next elevator normally puts into service, if sedan-chair after elevator completes leveling
Compartment is located just at up/down end station, then hits limit switch by conventional method and obtain floor information, the process elevator is at most at a slow speed
The absolute position of carriage can be reaffirmed by travelling a floor, greatly the time of shortening elevator location searching again.
When elevator occurs catastrophe failure or power-off and causes oppressive event, since traction machine encoder fails, and traction
Machine encoder is related to elevator motion control, does not allow docking and switching generally, can be by this system during jiggering rescues people
Individually power supply, and transfer and obtain signal, pass through the moving direction and speed and leveling feelings of floor inductor auxiliary judgment carriage
Condition, it is extremely advantageous to the rescue of elevator indicator of trapped personnel.
The present invention substitutes the common partition of elevator using a kind of staged partition, and is replaced by the floor inductor of car top
The leveling control and position detection of lift car can be realized without multiple sensors for leveling inductor and again leveling inductor,
And the present invention can work independently of encoder, it is ensured that when the abnormal conditions such as skidding or power-off occur for elevator, control cabinet can be quick
Leveling, and reaffirm the absolute position of carriage, have the advantages that at low cost, high reliablity.
Above embodiment cannot limit the protection scope of the invention, and the personnel of professional skill field are not departing from
In the case where the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered
Within.
Claims (8)
1. a kind of lift car leveling and position detecting system, including elevator (1), control cabinet (2) and carriage (3), the elevator
(1) guide rail (4) along the arrangement of the elevator (1) short transverse, the top installation of the elevator (1) are installed on the borehole wall
There is the traction machine (5) to travel longitudinally for drawing the carriage (3) along the guide rail (4), it is characterised in that the guide rail (4)
The position of the upper each floor of correspondence is mounted on staged partition (6), is equipped on the carriage (3) and the control cabinet (2)
The floor inductor (7) of electrical connection, the floor inductor (7) are the fork-shaped knot that recess adapts to the staged partition (6)
Structure, the two sides of the floor inductor (7) pitch and are equipped with several correlation photoelectric sensors on branch, and are divided into leveling detection mould
Group ELD(8) and position detection mould group FLD(9), the staged partition (6) divides vertical area according to practical number of floor levels, wherein one is vertical
Area is leveling detection zone (10), and the vertical area of residue is position detection region (11), and the leveling detection zone (10) is if be provided with
The oblique comb teeth (12) that the dry length direction along the staged partition (6) is arranged, the position detection region (11) is if be provided with
Do lath different in size (13).
2. a kind of lift car leveling according to claim 1 and position detecting system, it is characterised in that the lath (13)
Quantity is identical as the photoelectric sensor quantity of the position detection mould group FLD(9).
3. a kind of lift car leveling according to claim 2 and position detecting system, it is characterised in that the staged partition
(6) center in each vertical area divided is in same horizontal line.
4. a kind of lift car leveling according to claim 3 and position detecting system, it is characterised in that the leveling detects mould
Group ELD(8) photoelectric sensor quantity be two or more.
5. a kind of lift car leveling according to claim 4 and position detecting system, it is characterised in that the system is put down
Layer detection and the control of leveling again implementation process are as follows:
(1), the oblique comb teeth total length for defining leveling detection zone is L, is α with the angle being horizontally formed, single comb teeth length is
M, comb teeth quantity are K, and the photoelectric sensor number that leveling detects mould group ELD is that the distance between T and photoelectric sensor value are
H；
(2), start reduction of speed when elevator is up to target zone, the leveling detection zone of corresponding staged partition slides into floor inspection
The indent of inductor is surveyed, and the oblique comb teeth in region is scanned and formed flat by the photoelectric sensor of leveling detection mould group ELD
Layer coded pulse, wherein each photoelectric sensor of leveling detection mould group ELD individually exports leveling coded pulse all the way；
(3), when the leveling detection calculated leveling coded pulse number of mould group ELD isWhen, continue to creep, until leveling detects mould
Group ELD all photoelectric sensors are blocked, and then determine that carriage is in the level position of the floor at this time；
(4), when elevator is in level position and in loading or unloading state, floor inductor and staged partition become because of weight bearing
Change and relative displacement occurs, allows certain part photoelectric sensor of leveling detection mould group ELD not to be blocked, control cabinet then controls elevator
Upstream or downstream allow carriage to reform into leveling state so that leveling detection mould group ELD all photoelectric sensors again by
It blocks.
6. a kind of lift car leveling according to claim 5 and position detecting system, it is characterised in that the comb teeth of the step 1
The numerical value of quantity K is the odd number greater than two.
7. a kind of lift car leveling according to claim 3 and position detecting system, it is characterised in that the sedan-chair of the system
The implementation process of compartment position detection is as follows:
(1), the photoelectric sensor quantity that number of floor levels is L, the lath quantity in position detection region and position detection mould group FLD is defined
For N, each lath different in size is divided into P1、P2、P3···PN, the photoelectric sensor of position detection mould group FLD is divided into
FLD1、FLD2、FLD3···FLDN；
(2), withMode each lath is subjected to permutation and combination, configuration information summary table picks out L item number in information summary table
It is believed that breath is right with each floor number phase, floor information table is constituted；
(3), each staged partition is mounted on by corresponding floor position with the floor number of floor information table, each staged partition with
Each lath position different in size in corresponding data information arrangement position detection zone；
(4), when elevator is creeped to level position, the position detection region of staged partition slides into the recessed of floor detection inductor
At mouthful, each lath in the photoelectric sensor scan position detection zone of position detection mould group FLD, the position for forming the road N is compiled
Code pulse；
(5), it the level translation time for comparing each position encoded pulse in road, is arranged in the mode that timing is successive, and every road position
It sets coded pulse and represents an independent lath, to measure floor information entrained by the staged partition, obtain carriage and work as
Preceding floor position.
8. a kind of lift car leveling according to claim 1 and position detecting system, it is characterised in that the floor inductor
(7) it is mounted on the top of the carriage (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272133.9A CN109132767B (en) | 2018-10-29 | 2018-10-29 | Car flat layer and position detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272133.9A CN109132767B (en) | 2018-10-29 | 2018-10-29 | Car flat layer and position detection system |
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| CN109132767A true CN109132767A (en) | 2019-01-04 |
| CN109132767B CN109132767B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811272133.9A Active CN109132767B (en) | 2018-10-29 | 2018-10-29 | Car flat layer and position detection system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092253A (en) * | 2019-04-30 | 2019-08-06 | 上海三菱电梯有限公司 | To the corrected system and method in calibration position of carriage Absolute position measurement system |
| CN110759194A (en) * | 2019-10-25 | 2020-02-07 | 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 |
| 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 |
| CN114436104A (en) * | 2020-10-30 | 2022-05-06 | 蒂升家用电梯(上海)有限公司 | Elevator flat bed induction system and implementation method thereof |
| CN114436105A (en) * | 2020-10-30 | 2022-05-06 | 蒂升家用电梯(上海)有限公司 | Fault detection method of elevator flat bed induction system |
| CN114538233A (en) * | 2022-03-10 | 2022-05-27 | 阿特拉斯智能工程(南通)有限公司 | Instrument manufacturing detection system based on big data |
| CN114590662A (en) * | 2022-02-22 | 2022-06-07 | 浙江中控技术股份有限公司 | Reciprocating type elevator control method and reciprocating type elevator |
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