CN102020149A - Elevator system - Google Patents
Elevator system Download PDFInfo
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- CN102020149A CN102020149A CN2010102372585A CN201010237258A CN102020149A CN 102020149 A CN102020149 A CN 102020149A CN 2010102372585 A CN2010102372585 A CN 2010102372585A CN 201010237258 A CN201010237258 A CN 201010237258A CN 102020149 A CN102020149 A CN 102020149A
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Abstract
The invention discloses an elevator system which can detect regions where passengers are able to enter and exit an elevator, as so called elevator door region. The elevator system herein comprises two position detection sensors (1, 2) which are arranged on the side of the of an elevator car (100) and arrange a distance in lifting direction as prescribed, and are disposed opposite to the side of elevator hall; a current position memory apparatus indicating current position of the elevator car, whether it is within the elevator door region or outside of the elevator door region. Once the elevator system receives an output from any of the two position detection sensors (1, 2), the determined result from the said procedure is reversely stored. The invention can further simplify mounting, repairing, and detection, and at the same time can give an accurate measurement of the position of the elevator car. Even in cases when large vibration occurs due to long-period earthquake, long-size members will not hook objects to be detected, thereby increasing safety of the elevator system.
Description
Technical field
The present invention relates to a kind of elevator device with elevator car position detecting device, be particularly useful for when the lift car lifting detecting stop position or judge lift car whether be positioned at the elevator door zone with occasion.
Background technology
In the position detecting device of existing elevator, by position-detection sensor is set on lift car, detected body is set near floor, when lift car carries out lifting, contraposition is carried out in position to the floor of the position of the floor of lift car and elevator lobby, and the zone that is called as " elevator door zone " is detected, should " elevator door zone " position of expression lift car whether arrived the position that elevator cab door and elevator lobby door can open and close.
In addition, as the also known distolateral stop detector that photo-electric is set that the threshold of the elevator cab door in being arranged on lift car is arranged of prior art, the stop detector of this photo-electric is launched light towards the side direction of lift car in the specified action zone, and is receiving the light time action.
The patent documentation 1 open patent 2004-224529 of Japan communique
In above-mentioned prior art, in order to carry out accurate in locating between the floor to the floor of elevator lobby and lift car, must adjust operation, and installation exercise and maintenance examination operational difficulty, there is time-consuming problem.
In addition, in patent documentation 1 described elevator device, owing to carry out the installation exercise of detected body with respect to this absolute localization criteria of elevator lobby, so do not need detected body is adjusted operation, but because detected body is projected in the hoist trunk, when situations such as long period earthquake had taken place, main hoist cable and the isometric size members of governor rope may be hooked this detected body and be caused elevator to stop.
Summary of the invention
The present invention makes in order to solve existing problem in the above-mentioned prior art, the objective of the invention is to further simplify installation exercise and maintenance examination operation, can detect simultaneously the position of lift car exactly, even because of long period earthquake etc. has caused big vibration, long size members can not hooked detected body yet, thereby can further improve the safety of elevator device.
To achieve these goals, the invention provides a kind of elevator device, described elevator device detects the elevator door zone, the position arrival elevator cab door of described elevator door zone domain representation lift car and the lifting position that the elevator lobby door can open and close and passenger be the zone of elevator up and down, described elevator device has: 2 position-detection sensors, described 2 position-detection sensors are arranged on described lift car side, and it is the distance that on the lifting direction, separates regulation, and relative with the elevator lobby side to the ground setting; And current location memory storage, the current location of the described lift car of described current location memory device stores be positioned at described elevator door zone with or be positioned at judged result beyond the described elevator door zone, when described elevator device obtained exporting at any one position-detection sensor from described 2 position-detection sensors, counter-rotating was stored in the described judged result in the described current location memory storage.
(invention effect)
According to the present invention, can access a kind of elevator device with elevator car position detecting device, in this elevator device, relative with the elevator lobby side to the position be provided with 2 position-detection sensors that on the lifting direction, separate predetermined distance, when elevator device obtains exporting from any one sensor, the expression lift car stored of counter-rotating be positioned at the elevator door zone with or be positioned at judged result beyond the elevator door zone, can positively detect the position of lift car thus, even make the building cause big vibration because of long period earthquake etc., long size members can not hooked detected body yet, thereby can further improve the safety of elevator device.
Description of drawings
Fig. 1 is the diagram of block of expression an embodiment of the present invention.
Fig. 2 is the elevator lobby threshold of expression one embodiment and the block diagram of lift car threshold.
Fig. 3 is the diagram of block of the safety governor of expression one embodiment.
Fig. 4 is the instruction diagram of state variation of the safety governor of expression one embodiment.
Fig. 5 is the instruction diagram of the elevator door zone area recognition method of expression one embodiment.
Fig. 6 is the diagram of circuit of the elevator door zone area recognition method of an embodiment.
Fig. 7 is the diagram of block of expression other embodiments of the present invention.
Fig. 8 is the elevator lobby threshold of other embodiments of expression and the block diagram of lift car threshold.
Fig. 9 is the diagram of block of the safety governor of other embodiments of expression.
Figure 10 is the instruction diagram of the elevator door zone area recognition method of other embodiments of expression.
Figure 11 is the diagram of circuit of the elevator door zone area recognition method of other embodiments.
Figure 12 is the diagram of block of the safety governor of another other embodiments of expression.
Figure 13 is the diagram of circuit of the elevator door zone area recognition method of another other embodiments.
Figure 14 is the diagram of block of the safety governor of another other embodiments of expression.
Figure 15 is the diagram of circuit of the elevator door zone area recognition method of another other embodiments.
Nomenclature:
1,2, the 21-position-detection sensor
The 4-safety governor
The 100-lift car
The specific embodiment
Followingly describe with reference to the embodiment of accompanying drawing to elevator device involved in the present invention.
(embodiment 1)
Fig. 1 is the integral structure figure of expression one embodiment, Fig. 2 is the block diagram of peripheral part detailed structure of expression elevator lobby threshold 102 and lift car threshold 103, Fig. 3 is the diagram of block of expression safety governor 4, Fig. 4 is the state change map of safety governor, Fig. 5 represents the summary of elevator door zone area recognition method, and Fig. 6 is the diagram of circuit of expression elevator door zone area recognition method.
In elevator, lift car 100 is connected with counterbalanced weight 112 by hoist cable 101, and between a plurality of floors, moves in the hoist trunk in being formed on building.The 106 pairs of rope sheaves 104 of electrical motor that move through of lift car 100 drive and carry out.The electric power that drives usefulness supplies in the electrical motor 106 by power inverter 107.In addition, coder isopulse generator 107 is installed on electrical motor 106, and speed, the equivalent position on the moving direction of lift car 100 in hoist trunk and the miles of relative movement etc. of calculating drive motor 106 are counted in the pulse that system controller 109 produces when electrical motor is rotated.Lift car 100 is provided with the elevator cab door 111 that engages with elevator lobby door 110 and open and close.
Position- detection sensor 1 and 2 is arranged on the lift car side, and is provided in the distance that separates regulation on the lifting direction of lift car 100, and the output separately of described 2 position-detection sensors is connected with safety governor 4 respectively independently.Safety governor 4 identification is by each position-detection sensor detected elevator door zone (zone that elevator lobby door and elevator cab door can open and close) respectively, is being judged as elevator door can open and close the time, output enabling signal.In Fig. 1, the Signals ﹠ Systems controller of safety governor 4 109 connects, but in addition also can be arranged to be arranged on lift car 100 in controller or the controller that is arranged in the elevator lobby be connected.
Position- detection sensor 1 and 2 and the position of elevator lobby side relation as shown in Figure 2, position- detection sensor 1 and 2 be configured to relative with the elevator lobby side to, and be provided with distance that the elevator door zone separates regulation accordingly.Position- detection sensor 1 and 2 can be any in reflective photoelectric sensor, electrostatic capacitance sensor, Magnetic Sensor, eddy current sensor as subtend type sensor etc.Position- detection sensor 1 and 2 thresholds 102 with the elevator lobby side detect as detected body.Detected body can be the works of elevator lobby door, also can be the reflecting plate that is detected by position-detection sensor.Safety governor 4 is a microcomputer etc., is made of the device 5 of the position of judging lift car and the device 6 of the current location of storage lift car.
Fig. 4 represents to detect the state variation of the position detecting system in elevator door zone, described state changes between " lift car is positioned at beyond the elevator door zone " and " lift car is positioned in the elevator door zone " repeatedly, " lift car is positioned at beyond the elevator door zone " expression lift car 100 is in the state that does not engage with elevator lobby door 110, represent that just lift car 100 is between floor and floor, " lift car is positioned in the elevator door zone " expression lift car 100 is in the state that engages with elevator lobby door 110, represents that just lift car 100 is positioned on the position that flushes with the floor face.
The change of state is undertaken by signal 12 and 13. Signal 12 and 13 produces when position- detection sensor 1 and 2 detects elevator lobby threshold 102, and the state of position probing is by safety governor 4 identifications and management.
Fig. 5 represent position- detection sensor 1 and 2 and elevator lobby threshold 102 between position relation, below the output state of the position-detection sensor under each state 1 and 2 and the status recognition of safety governor 4 are described.
(1) position- detection sensor 1 and 2 be positioned at simultaneously elevator lobby threshold 102 above the time, safety governor 4 is with state recognition at this moment and be stored as " lift car is positioned at beyond the elevator door zone ", position- detection sensor 1 and 2 does not detect any detected body, and its output all is in the OFF state.
(2) lift car moves towards the below from the state of (1), when position-detection sensor 2 detects elevator lobby threshold 102 and has exported ON, according to the output signal that is produced by position-detection sensor 2, the recognition result of safety governor 4 is rewritten as " lift car is positioned in the elevator door zone " this judged result from stored " lift car is positioned at beyond the elevator door zone " this current location counter-rotating.
(3) lift car further moves towards the below from the state of (2), when elevator lobby threshold 102 is between position- detection sensor 1 and 2, because position- detection sensor 1 and 2 does not detect the elevator lobby threshold, the output state of described two position-detection sensors is the OFF state, but,, safety governor 4 is positioned in the elevator door zone so being identified as lift car 100 owing to the state of this moment is to come from the state variation of (2).
(4) lift car further moves towards the below from the state of (3), when position-detection sensor 1 has been exported ON because of detecting elevator lobby threshold 102, according to the output signal that is produced by position-detection sensor 1, safety governor 4 is changed into recognition result " lift car is positioned at beyond the elevator door zone " this recognition result.
(5) position- detection sensor 1 and 2 be positioned at simultaneously elevator lobby threshold 102 below the time, safety governor 4 is made " lift car is positioned at beyond the elevator door zone " this judgement, position- detection sensor 1 and 2 does not detect any detected body, and its output state is the OFF state.
Fig. 6 represents the contents processing by safety governor 4 enforcements.Safety governor 4 is a microcomputer etc., and the contents processing of Fig. 5 carries out when detecting the output signal of position- detection sensor 1 and 2.
The processing of safety governor 4 is taking place to start (S100) when the edge interrupts, safety governor 4 judges whether interruption source is sensor 1 (S101), be judged as when being position-detection sensor 1, enter step S102, being judged as (interruption source is a sensor 2) when not being position-detection sensor 1, enter step S109.
Whether the current state of judging lift car 100 in step S102 is positioned at beyond the elevator door zone (S102), being judged as when being positioned at beyond the elevator door zone, enters step S103, being judged as when being positioned in the elevator door zone, enters step S106.In step S103, because the current state of lift car 100 is positioned at beyond the elevator door zone, and interruption source is a position-detection sensor 1, so can be judged as the moving direction of lift car 100 is descent direction, after this, whether safety governor 4 has the reasonableness (S104) of confirming judged result unusually by the processing itself of confirming sensor and controller.
As in step S104, confirming rational method, for example will be input in the safety governor 4 with the moving direction of electrical motor 106 bonded assembly pulse generators 107 detected lift cars 100, information that 4 pairs of moving directions detected by pulse generator and lift car of described safety governor are relevant and the relevant information with lift car 100 moving directions that obtains in step S103 compare.Represent to have taken place when unusual in relatively result, safety governor 4 generates the output that elevator is stopped.Represent not produce when unusual in relatively result, safety governor 4 is rewritten as " in the elevator door zone " (S105) with the current state of being stored from " beyond the elevator door zone ".
In step S102, if the current state of lift car 100 is not when being positioned at beyond the elevator door zone, the current state of judging lift car 100 is positioned in the elevator door zone, because the current state of lift car 100 is positioned in the elevator door zone, and interruption source is a position-detection sensor 1, is ascent direction (S106) so can judge the moving direction of lift car 100.After this, in step S107, carry out the reasonableness identical and confirm to handle, do not take place when unusual being judged as, the current state of lift car is rewritten as " beyond the elevator door zone " (S108) with step S104.
If be judged as interruption source when being not position-detection sensor 1 in step S101, being judged as position-detection sensor 2 is interruption source (S109), after this carries out and the identical processing of step (S102).In addition, Fig. 5 is an example of contents processing, as other processing, can list and in S101, at first judge current state, then method of handling according to each interruption source respectively and the method by sampling action rather than the state by interrupting confirming position- detection sensor 1 and 2 etc.
As mentioned above, it is to be positioned at the elevator door zone still is positioned at (zone that elevator door can not open and close) beyond the elevator door zone with (zone that elevator door can open and close) recognition result that the output signal that produces when detecting detected body according to position- detection sensor 1 and 2, safety governor 4 switch the expression lift cars.Thus, compared with prior art can use the shorter tested drafting board of length or do not use check-out console.Thus, can shorten and install and maintenance time, can avoid the situation that long size members is hooked detected body to take place.
(embodiment 2)
Fig. 7 is the integral structure figure of other embodiments of expression, Fig. 8 is the block diagram of expression elevator lobby threshold 102 and lift car threshold 103 peripheral part detailed structure, Fig. 9 is the diagram of block of expression safety governor 4, Figure 10 represents that overview that the elevator door zone is discerned once more, Figure 11 are the diagram of circuits of the method for 4 pairs of elevator door zones of expression safety governor when discerning once more.
Between position-detection sensor 1 and position-detection sensor 2, set up position-detection sensor 21 (the 3rd position-detection sensor), for example make when having a power failure or during instantaneous power failure, can't keep at safety governor 4 also can discerning current state once more under the situation of the canned data relevant with current state.
In addition, the device 7 that produces the instruction of elevator car position affirmation mode is set in safety governor 4,, produces the instruction that the elevator car position affirmation mode is started by detecting the signal that produces when having a power failure etc.
Followingly the identification once more of current state is described with reference to Figure 10.
(for example the actual position of lift car was in the elevator door zone when Figure 10 was illustrated in the indeterminate or status recognition mal of the storage of the current state in the safety governor 4, but when safety governor 4 is identified as " lift car is positioned at beyond the elevator door zone "), the position-detection sensor 1, position-detection sensor 21 and the position-detection sensor 2 that are installed in the lift car are descended to detect the method for elevator lobby threshold 102, also represented the status recognition of safety governor 4 simultaneously.
(1) position- detection sensor 1,21 and 2 be positioned at simultaneously elevator lobby threshold 102 above the time, the status recognition of safety governor 4 is " situs ambiguus of lift car ", position- detection sensor 1,21 and 2 does not detect any detected body, and it is output as the OFF state.
(2) lift car moves towards the below from the state of (1), when position-detection sensor 2 detects elevator lobby threshold 102 and has exported ON, produce energizing signal by position-detection sensor 2, but the status recognition of safety governor 4 still is " situs ambiguus of lift car ".
(3) lift car further moves towards the below from the state of (2), when elevator lobby threshold 102 is between position- detection sensor 2 and 21, because position- detection sensor 1,21 and 2 does not detect elevator lobby threshold 102, so output state is the OFF state, the status recognition of safety governor 4 still is " situs ambiguus of lift car ".
(4) lift car 100 further moves towards the below from the state of (3), when position-detection sensor 21 detects elevator lobby threshold 102 and has exported ON, by the energizing signal that is produced by position-detection sensor 21, the status recognition of safety governor 4 becomes " lift car is positioned in the elevator door zone ".Because the position-detection sensor of setting up 21 is between position-detection sensor 1 and position-detection sensor 2, and be defined in the elevator door zone between this position-detection sensor 1 and the position-detection sensor 2, so when position-detection sensor 21 detected elevator lobby threshold 102, the current location one of lift car 100 fixed in the elevator door zone territory.
(5) when elevator lobby threshold 102 is between position- detection sensor 1 and 21, the status recognition of safety governor 4 is " lift car is positioned in the elevator door zone ", position- detection sensor 1 and 2 does not detect the elevator lobby threshold, and it is output as the OFF state.
Following with reference to Figure 11 to current state once more identification concrete contents processing describe.
For the situation of tackling when having a power failure or safety governor 4 can't be discerned current state once more during instantaneous power failure, in safety governor 4, be provided with the elevator car position affirmation mode, it discerns the current location of lift car once more according to following step.
When making that because of power failure etc. the current location information of lift car 100 has been lost, and startup elevator car position affirmation mode (S200, S201).In order to confirm the current location of lift car by position-detection sensor 21, lift car 100 is descended or rising (S202).At this moment, owing to be in the precarious position of not knowing lift car 100 current locations from the elevator device side,, preferably moving velocity is set at low speed so consider safety.
Lift car 100 is moved, till the response that detects position transduser 21, after the response that detects position-detection sensor 21, enter step S204 (S203).In step S204, when position-detection sensor 21 detected detected body, safety governor 4 was rewritten as the current state of lift car 100 " being positioned in the elevator door zone ".
Carry out the reasonableness of current state and confirm to handle (S205).This processing for example still detects the output of position- detection sensor 1 or 2 under the situation of the output that detects position-detection sensor 21, thereby suspects that sensor carries out in the time of may fault having taken place.At this moment, because the current location of lift car 100 is positioned in the elevator door zone, institute makes passenger's lift car 100 that speeds away so that lift car 100 stops immediately.
As mentioned above, the output that produces when detecting detected body according to position- detection sensor 1 and 2, it is to be positioned at the elevator door zone still is positioned at (zone that elevator door can not open and close) beyond the elevator door zone with (zone that elevator door can open and close) recognition result that safety governor 4 switches the expression lift cars, simultaneously when having a power failure etc. under the situation that the current location information of the lift car 100 of safety governor 4 has been lost, set up position-detection sensor 21 between position- detection sensor 1 and 2 by use, make the lift car 100 the longest distances that move a floor, can discern the current location information of lift car 100 thus once more, elevator is resumed operation rapidly.
(embodiment 3)
Figure 12 represents the constructional drawing of the safety governor 4 of another other embodiments, and Figure 13 is a diagram of circuit.
In safety governor 4, set up diagnostic mode instruction generation device 8 as new function.According to the diagnostic mode instruction, safety governor 4 is set to diagnostic mode, and position-detection sensor and safety governor etc. is diagnosed self.This diagnosis is perhaps implemented in the mode of periodic inspection automatically for example in the enforcements such as the late into the night of elevator passenger rareness.
Followingly diagnostic mode is described with reference to Figure 13.Start back (S300) at diagnostic mode, lift car is automatically moved to (S301) between floor and the floor.After this, make lift car 100 stop (S302), in order to diagnose, to the current location information of lift car once reset (S303) by stopping to handle.The current location information of the lift car 100 before the step S303 is temporarily transferred in the lift car current location memory storage 6.In step S304, implement the treatment scheme among the embodiment 2.(S305-is) when unusual not taking place being judged as each position-detection sensor by this processing, return to normal condition, elevator is brought into operation (S306) once more, after this finishes diagnostic mode (S307).(S305-is not) when unusual taken place in any one sensor in being judged as each sensor, notifies the generation (S308) of fault to the maintenance management personnel, and makes elevator out of service, after this finishes diagnostic mode (S309).
As mentioned above, by in safety governor 4, setting up diagnostic mode, and carry out specified action, can automatically detect the unusual of each position-detection sensor.
(embodiment 4)
Figure 14 is the constructional drawing of the safety governor 4 of another other embodiments of expression, and Figure 15 is a diagram of circuit.
In controller 4, increase the signal 31 of input from the detector of the absolute location that is used to detect lift car.Preferably adopt the limit switch that for example used cam mechanism, opto-electronic pickup and can detect the device of absolute location in the hoist trunk of lift car by detected body of its detection etc. as detector.
Following with reference to Figure 15 to current state once more identification concrete contents processing describe.Can not to discern the occasion of current state when having a power failure in order tackling and during instantaneous power failure etc. once more, be provided with the elevator car position affirmation mode in safety governor 4, it discerns the current location of lift car once more according to following step.
Having a power failure etc. when making the current location information of lift car 100 lose, start the elevator car position affirmation mode (S400, S401).Then, in order to determine the current location of lift car by the detector 31 that is used to detect lift car 100 absolute locations, lift car 100 is descended or rise (S402).After this, lift car 100 is moved, till the response that detects the detector 31 that is used to detect lift car 100 absolute locations, after the response that detects detector 31, enter step S404 (S403).In step S404, when detector 31 detected detected body, safety governor 4 was rewritten as the location information that the position according to detector obtains with the current state of lift car 100.For example, between floor, be provided with when being used to detect the cam type switch of lift car absolute location, because the position of lift car is positioned at " beyond the elevator door zone ", so safety governor 4 is rewritten as current state in " beyond the elevator door zone ".After this, the reasonableness of carrying out current state confirms to handle (S405).Thereby for example also detecting in the output that has detected detector 31 when the output of position-detection sensor 1 or 2 suspects that fault has taken place these sensors, this processing carries out.At this moment, because the current location of lift car 100 is in the elevator door zone, thus elevator is stopped, and make passenger's lift car 100 that speeds away.
As mentioned above, even under the situation that the current location information of the lift car 100 of safety governor 4 has been lost when having a power failure etc., also can use signal 31 from the detector of the absolute location that is used to detect lift car, in position arbitrarily the current location information of lift car 100 is discerned, so elevator is resumed operation rapidly.
Claims (7)
1. elevator device, this elevator device detects the elevator door zone, the position arrival elevator cab door of described elevator door zone domain representation lift car and the lifting position that the elevator lobby door can open and close and passenger be the zone of elevator up and down, and described elevator device is characterised in that to have:
2 position-detection sensors, described 2 position-detection sensors are arranged on described lift car side, and separate the distance of regulation on the lifting direction, and relative to the elevator lobby side the ground setting; And
Current location memory storage, the current location of the described lift car of described current location memory device stores be positioned at described elevator door zone with or be positioned at judged result beyond the described elevator door zone,
When described elevator device obtained exporting at any one position-detection sensor from described 2 position-detection sensors, counter-rotating was stored in the described judged result in the described current location memory storage.
2. elevator device as claimed in claim 1 is characterized in that,
The distance of described regulation is provided with accordingly with described elevator door zone.
3. elevator device as claimed in claim 1 is characterized in that,
Described position-detection sensor detects the threshold of elevator lobby side as detected body.
4. elevator device as claimed in claim 1 is characterized in that,
This elevator device also has the pulse generator of the moving direction that detects described lift car,
Described elevator device compares information relevant with the lift car moving direction that is obtained by described pulse generator and the relevant information with the lift car moving direction that is obtained by described position-detection sensor, when being inconsistent, elevator is stopped in relatively result.
5. elevator device as claimed in claim 1 is characterized in that,
Between described 2 position-detection sensors, be provided with the 3rd position-detection sensor.
6. elevator device as claimed in claim 1 is characterized in that,
This elevator device has the elevator car position affirmation mode, and described elevator car position affirmation mode makes described lift car lifting, till described elevator device any one position-detection sensor from described 2 position-detection sensors obtains output.
7. elevator device as claimed in claim 1 is characterized in that,
Between described 2 position-detection sensors, be provided with the 3rd position-detection sensor, described elevator device according to the output of the 3rd position-detection sensor judge the current location of described lift car be positioned at described elevator door zone with or be positioned at beyond the described elevator door zone.
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| JP2009-213931 | 2009-09-16 | ||
| JP2009213931A JP5055333B2 (en) | 2009-09-16 | 2009-09-16 | Elevator system |
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| CN102020149B CN102020149B (en) | 2015-06-10 |
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| CN103274267A (en) * | 2013-04-12 | 2013-09-04 | 快意电梯股份有限公司 | Outage position recognition device and protection method |
| CN106715310A (en) * | 2014-09-11 | 2017-05-24 | 奥的斯电梯公司 | Vibration-based elevator tension member wear and life monitoring system |
| CN107640670A (en) * | 2016-07-20 | 2018-01-30 | 株式会社日立制作所 | The car position display device and car position display methods of elevator |
| CN110799436A (en) * | 2017-06-27 | 2020-02-14 | 因温特奥股份公司 | Position determination system and method for determining the position of a car of an elevator car |
| CN111824881A (en) * | 2019-04-17 | 2020-10-27 | 天津大学 | Elevator safety protection system for detecting stop position of elevator car and detection method thereof |
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| JP2014223954A (en) * | 2011-09-09 | 2014-12-04 | 三菱電機株式会社 | Elevator stop position detection device |
| EP3556700A1 (en) * | 2018-04-20 | 2019-10-23 | Inventio AG | Lift system with a position measuring device and method for determining a position of an elevator car in a lift shaft |
| CN109132767B (en) * | 2018-10-29 | 2023-12-26 | 广东环境保护工程职业学院 | Car flat layer and position detection system |
| KR102018202B1 (en) * | 2019-04-01 | 2019-09-04 | 주식회사 한테크 | Safety elevation level adjustment system for elevators |
| CN113874310B (en) * | 2019-07-02 | 2022-11-29 | 株式会社日立制作所 | Elevator installation |
| KR102535832B1 (en) * | 2021-01-07 | 2023-05-23 | 김경중 | attention device for elevator |
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| WO2008114529A1 (en) * | 2007-03-20 | 2008-09-25 | Hitachi, Ltd. | Safety system of elevator |
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| US10399821B2 (en) | 2014-09-11 | 2019-09-03 | Otis Elevator Company | Vibration-based elevator tension member wear and life monitoring system |
| CN107640670A (en) * | 2016-07-20 | 2018-01-30 | 株式会社日立制作所 | The car position display device and car position display methods of elevator |
| CN107640670B (en) * | 2016-07-20 | 2019-04-26 | 株式会社日立制作所 | The car position display device and car position display methods of elevator |
| CN110799436A (en) * | 2017-06-27 | 2020-02-14 | 因温特奥股份公司 | Position determination system and method for determining the position of a car of an elevator car |
| CN110799436B (en) * | 2017-06-27 | 2022-06-17 | 因温特奥股份公司 | Position determination system and method for determining the position of a car of an elevator car |
| US11548759B2 (en) | 2017-06-27 | 2023-01-10 | Inventio Ag | Position determining system and method for determining a car position of an elevator car |
| CN111824881A (en) * | 2019-04-17 | 2020-10-27 | 天津大学 | Elevator safety protection system for detecting stop position of elevator car and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102020149B (en) | 2015-06-10 |
| JP2011063354A (en) | 2011-03-31 |
| JP5055333B2 (en) | 2012-10-24 |
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