CN104860148B - Elevator device - Google Patents

Elevator device Download PDF

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Publication number
CN104860148B
CN104860148B CN201510184646.4A CN201510184646A CN104860148B CN 104860148 B CN104860148 B CN 104860148B CN 201510184646 A CN201510184646 A CN 201510184646A CN 104860148 B CN104860148 B CN 104860148B
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China
Prior art keywords
car
elevator
floor
abnormal
movement
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CN201510184646.4A
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Chinese (zh)
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CN104860148A (en
Inventor
吉川敏文
古桥昌也
深田裕纪
冈村清志
井上真辅
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Hitachi Ltd
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Hitachi Ltd
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Priority to CN201510184646.4A priority Critical patent/CN104860148B/en
Priority to CN201080067507.9A priority patent/CN102947210B/en
Publication of CN104860148A publication Critical patent/CN104860148A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings

Abstract

The elevator device of the present invention is provided with unintended car movement protection device; when in the state of lift car opens in car door and hall door since lifting the floor of elevator lobby; the unintended car movement protection device is judged as there occurs that car accidental movement is abnormal; stop lift car, the elevator device has:The hall door switch (41) of the car door switch (43) for detecting the open state of car door and the open state for detecting hall door;Detect the speed of car and the detection means (21) of amount of movement;Detect the position sensor (30) of the floor reference position of each floor;And safety controller (1), its according to the testing result of detection means (21) and position sensor (30) and relative to car position set be used to judge the abnormal abnormal judgment threshold of car speed judge that car accidental movement is abnormal.Thus, car accidental movement is effectively detected with shorter operating range (in the time earlier), while security is improved, prevents the decline of elevator operating efficiency.

Description

Elevator device
The application be the applying date on 06 18th, 2010, Application No. 201080067507.9, entitled " elevator The divisional application of the application for a patent for invention of system ".
Technical field
The present invention relates to a kind of elevator device for being provided with unintended car movement protection device, it is specially adapted to be provided with and adopts With the high function elevator device of the safety controller of microcomputer.
Background technology
Elevator is obligated to set unintended car movement protection device (UCMP:Door opens mobile protection device), car is unexpected Mobile protection device is to there occurs failure in drive device and controller etc. and cause lift car logical in lift car and lifting The automatic safety device for stopping lift car when the door of all gateways in road is lifted before closing.
Unintended car movement protection device can opened areas detection sensor, car door switch, hall door switch by elevator door Deng constituting, in the state of lift car is opened in car door and hall door from the floor of elevator lobby lifted predetermined distance or Beyond elevator door can opened areas when, unintended car movement protection device acts brake.
As prior art, such as, Patent Document 1 discloses a kind of scheme, it in lift car in order to travel out electricity Terraced door can detect operating range of the car accidental movement untill shortening to braking and start and stop before opened areas, work as electricity Terraced car elevator door opening in the state of beyond elevator door can opened areas when, carry out car align action again, in car Car position when door is opened and difference between the car position after car position corrective action has been carried out beyond prespecified Value in the case of, act brake, when deviate from FFL, carry out car align action again, car at this moment Speed V1 be less than align again after car speed V2, and within a certain period of time in the case of, be judged as that car position there occurs Change drastically and act brake.Citation
Patent document
The Japanese Patent Laid-Open 2007-55691 publications of patent document 1
In the above prior art, due to can be in opened areas by for judging that abnormal predetermined distance is set in elevator door For shorter distance, so there is the possibility increase of error detection, especially stretched in hoist cable because of elevator above and below passenger It is easily abnormal by car movement error detection now during contracting.When occurring in that error detection, it is necessary to make elevator car by brake Railway carriage or compartment emergent stopping, so that the operation service of elevator can be caused to stop so that the operational efficiency of elevator declines.Especially in long stroke Elevator in, because the length of hoist cable is long so that state as spring-like easily occurs in hoist cable, above and below passenger during elevator Easily occur to stretch, so as to operational efficiency can be caused significantly to decline, and make it that the stop of each floor is highly inconsistent.
In addition, in the scheme disclosed in patent document 1, due to needing that lift car is implemented to align action again, so Detection the spent time is long, it is possible to cause lift car elongated in the distance of elevator door open mode downward driving.Also, It is easily abnormal by car speed V2 error detections when car speed V1 is smaller, and when car speed V1 is larger, then is difficult to detect Go out exception.In addition, inspection does not measure elevator travels this abnormal patterns (abnormal mould of elevator not speedup in the state of V2 < V1 Formula), or the detection of the abnormal patterns postpones.
The content of the invention
It is an object of the invention to solve it is above-mentioned the problems of in the prior art, with shorter operating range (earlier Time) effectively detect car accidental movement, further improve security while, prevent operational efficiency from declining.
The present invention other purposes be the stroke regardless of elevator how long the difference with floor, can avoid hair Raw error detection, using the teaching of the invention it is possible to provide the elevator device of high reliability.
In addition, the object of the invention also reside in no matter car speed size and speedup or deceleration etc. velocity mode such as What, can be such that lift car rests in the range of entrance hall stop reference position predetermined distance.
It is an object of the invention to realize at least any one purpose in above-mentioned purpose.
To achieve these goals, the present invention provides a kind of elevator device, and it is provided with unintended car movement protection device, When being lifted the floor of elevator lobby, the car is surprisingly moved in the state of lift car opens in car door and hall door Dynamic protection device is judged as there occurs that car accidental movement is abnormal, stops the lift car, and the elevator device has:Inspection The hall door switch of the car door switch for surveying the open state of the car door and the open state for detecting the hall door;Detect elevator The speed and amount of movement of car and the detection means of floor reference position;And safety controller, the safety controller root It is used for the abnormal judgement for judging that car speed is abnormal according to the testing result of the detection means and relative to what car position was set Threshold value judges that car accidental movement is abnormal.
Invention effect
According to the present invention, due to detection floor reference position and the speed and amount of movement of lift car, and relative to Car position sets the abnormal judgment threshold abnormal for judging car speed, so judging with relying solely on car position The abnormal occasion of car accidental movement is compared, and can be detected that car accidental movement is abnormal earlier in time, can entered While one step improves security, it is to avoid error detection occur, and can prevent the operational efficiency of elevator device from declining.
Brief description of the drawings
Fig. 1 is the overall structure figure for representing one embodiment of the present invention.
Fig. 2 is the block diagram for representing the safety controller involved by an embodiment.
Fig. 3 is the side view for representing the judging distance involved by an embodiment.
Fig. 4 is the action flow chart of the unintended car movement protection device involved by an embodiment.
Fig. 5 is to represent the exception abnormal relative to the judgement car speed that car position is set involved by an embodiment The curve map of the characteristic of judgment threshold.
Fig. 6 is the curve map for representing the flexible caused car action by hoist cable involved by an embodiment.
Fig. 7 is the curve map of the action (stop distance) when representing an embodiment and there occurs exception in the prior art.
Fig. 8 is the curve map of the action (error detection) when representing an embodiment and there occurs exception in the prior art.
Fig. 9 is to represent abnormal relative to the judgement car speed that car position is set involved by other embodiments The curve map of the characteristic of abnormal judgment threshold.
Figure 10 is to represent the judgement car speed set relative to car position involved by another other embodiments The curve map of the characteristic of abnormal abnormal judgment threshold.
Figure 11 is the block diagram for representing the safety controller involved by other embodiments.
Figure 12 is to represent the judgement car speed set relative to car position involved by another other embodiments The curve map of the characteristic of abnormal abnormal judgment threshold.
Figure 13 is the block diagram for representing the safety controller involved by another other embodiments.
Figure 14 is to represent the judgement car speed set relative to car position involved by another other embodiments The curve map of the characteristic of abnormal abnormal judgment threshold.
Symbol description:
1 safety controller
2 lift cars
6 brakes
21 encoders (detection means)
30 car position sensors (position sensor)
31A, 31B, 31C detection plate
41A, 41B, 41C hall door are switched
43 car door switch
101 car speed calculating parts
104 calculate stop distance between reference positions and car position apart from calculating part
105 enabling judging parts
The abnormality determiner of 106 car positions and car speed
107 threshold data storehouses
Embodiment
An embodiment is described in detail referring to the drawings.
In the prior art, security system uses the device of the mechanical systems such as contact switch and relay circuit, and at this In embodiment, the electronic installation such as the safety controller of security system by employing microcomputer is constituted.
Safety controller is a kind of high performance electronic safety system, and its combination is defeated from multiple sensors and safety switch The information entered, carries out high-performance treatments by software, higher performance is realized by combining various states signal.
Fig. 1 is the overall structure figure for representing one embodiment of the present invention.As shown in figure 1, lift car 2 and balance weight 3 Connected by main hoist cable, rope sheave 5 carries out rotation driving by motor 4, lift car 2 carries out oscilaltion movement by rope sheave. When needing to stop lift car, it is fixed by 6 pairs of rope sheaves 5 of brake (being made up of dual system).Brake 6 is additionally operable to Make lift car emergent stopping when elevator there occurs exception.
Elevator shown in Fig. 1 is the elevator for employing electronic safety system, by the miniature calculating for being built-in with high reliability The safety controller 1 of machine etc. judges that elevator is to be in abnormality in normal condition, is being judged as in abnormal During state, while main power source of the cut-out to motor, brake 6 is acted, lift car 2 is promptly stopped Only.
Safety controller 1 is for example made up of the microcomputer of dual system, and two microcomputers by checking each other The state of other side and computing output, can realize high reliability.Safety controller 1 is by with microcomputer, CPU and DSP Arithmetic processing apparatus, FPGA (logic circuit) etc. can be by programming the processing unit electronically come installation process logic Constitute.
As one kind in the sensor of detection abnormal elevator state, it is provided with for detecting car speed and amount of movement The governor arrangement and encoder 21 of (displacement).Governor arrangement is by rotatable governor sheave 20 and speed controller rope 22 are constituted, and the speed controller rope 22 is supported by governor sheave 20, are fixed on the elevator car, and are linked with lift car.Compile Code device 21 (rotary encoder) is arranged on governor sheave 20, is rotated in linkage with lift car, to encoder 21 The pulse for rotating and producing is counted, and thus obtains the speed and amount of movement of lift car.
The signal of encoder 21 is input into safety controller 1, and elevator car is calculated by being counted to pulse The speed and amount of movement in railway carriage or compartment.It is used as the speed and the detection means of amount of movement of lift car, it would however also be possible to employ in liftway (such as on guide rail) vertically (lifting direction) pastes tape, reads the coding information magnetically recorded, and with light Mode (such as bar code) is come the detection means that is detected.
The detection of the floor reference position of each floor and the floor location information (such as 1 layer, 2 layers) of each floor can With by the car position sensor 30 (reflective photoelectric sensor) being arranged on lift car 2 and installed in each floor Detection plate 31A, 31B, 31C on the door of elevator lobby are carried out.It is located in car position sensor 30 relative with detection plate To position when, the reflected light of sensor is detected from each detection plate.By the length for changing each detection plate in each floor Whether degree and shape etc., can detect lift car 2 on the defined reference position of floor in each floor.In order to high-precision Detect reference position, it can be provided the edge of detection plate is detected according to the stair-stepping change of sensor signal degree.
Lift car 2 is calculated according to the floor reference position detected and the amount of movement calculated and stops required stop (stop height) in reference position.When using the marginal position of detection plate as floor reference position, so that marginal position and floor The mode of reference position interval predetermined distance installs detection plate 31A, 31B, 31C.Therefore, car position sensor 30 is being passed through After the marginal position for detecting detection plate, when the car amount of movement obtained according to encoder 21 has reached setting, illustrate electricity Terraced car (more correctly saying it is car floor) is sitting on the stop reference position of the floor.
In addition, being additionally provided with the car door switch 43 of the open state for detecting car door 42 and for detecting each floor Hall door 40A, 40B, 40C open state hall door switch 41A, 41B, 41C.It is used as the biography of the load of passenger in detection car Sensor, is provided with spring load cell 32 and being used on car door detects whether passenger is clamped by car door Beam sensor or photoelectric sensor (not shown).
Sensor (encoder 21 of speed regulator, car position sensor 30, spring load cell 32 and car door Beam sensor) and the information of switch (hall door switch 41A, 41B, 41C of car door switch 43 and each floor) changed After electric signal and serial communication signal, it is input to by signal wire in safety controller 1.
Safety controller 1 judges the safe condition of elevator according to sensor information and switching information, is being judged as hair When having given birth to abnormal, while main power source is cut off, act brake 6, so that lift car emergent stopping.
Fig. 2 is the block diagram for the UCMP for being denoted as safety controller 1.According to car position (from stop reference position The car displacement started at) and speed detect that car accidental movement is abnormal.
By in car speed calculating part 101 to encoder 21 regulation the unit interval number of pulses (with car Displacement is corresponding) counted to calculate car speed.Travel direction (ascent direction or the decline side of lift car To) judged by car travel walking direction portion 102 according to the signal of encoder 21.
Calculating the stop that elevator lobby is calculated apart from calculating part 104 of distance between stop reference position and car position Judging distance X, Fig. 3 between reference position and car position (car floor position) are its explanation figures.Stopping reference position is The floor reference position measured with car position sensor 30 is at a distance of the position of predetermined distance.Car position is according to from lift car The car amount of movement started at by the time point of floor reference position is obtained.
X=| car position-stop reference position |
=| (∑ AX+XA)-(XB+XA) | (1)
AX represents the car amount of movement relative to each pulse of speed regulator encoder 1, and XA represents to stop reference position, XB represents that floor reference position represents to pass through floor from lift car with stopping the distance between reference position (setting), ∑ AX The car amount of movement that the time point of reference position starts at is (along the car travel judged by car travel walking direction portion 102 Direction, it is determined that carrying out accumulation computing after "+" symbol or "-" symbol).
The output that enabling judging part 105 switchs 41A, 41B, 41C according to the hall door of car door switch 43 and each floor is believed Number detection car door or each floor hall door whether in open mode (can also be arranged to only judge whether car door is located In open mode).
When being detected as car door or hall door is in open mode, car position and car speed abnormality determiner 106 According to car speed, stop the judging distance X between reference position and car position and the sedan-chair relative to judging distance X settings The threshold value of overrunning (abnormal judgment threshold) of railway carriage or compartment speed judges whether there occurs that car accidental movement is abnormal.
Threshold value of overrunning as database and each floor stop reference position and judging distance X is corresponding is stored in threshold value In database 107.It is being judged as that safety controller 1 is defeated when there occurs that car accidental movement is abnormal with reference to threshold data storehouse 107 The signal for going out to cut off the signal of elevator main power source and acting elevator brake (is generally turned off the power supply of hoist engine brake The signal of power supply).
Fig. 4 is the flow chart for the action for representing electronic UCMP.
Judge whether the hall door of car door and each floor is in open state (F01).It is not at opening shape in elevator door During state, it is judged as not occurring car accidental movement exception, and terminate processing.
When elevator door is in open state, the speed (F02) of lift car is detected.
Sentencing between the current car position of calculating and the stop reference position of car landing (or nearest floor) Turn-off is from X (the car displacement started at from reference position) (F03).
With reference to the abnormal judgment threshold (F04) being stored in threshold data storehouse 107, and it is compared (F05).
When car speed is beyond abnormal judgment threshold, it is judged as that lift car is in car accidental movement abnormality (F06), and lift car emergent stopping (F07) is made.
Fig. 5 represents abnormal judgment threshold (judgment standard), and transverse axis (A01) represents lift car in the speed of N floors, the longitudinal axis (A02) position of the lift car on lifting direction is represented, dotted line (A05) represents to stop reference position, and curve A03 represents abnormal Judgment threshold.It is judged as normally when car speed is located at curve A03 inner side (stopping reference position side), in car speed position It is judged as there occurs exception when curve A03 outside.
The abnormal judgment threshold is set to centered on stopping reference position, the judgement started at from stop reference position Bigger apart from X (distance for arriving car position), abnormal judgment threshold is smaller.
In order to avoid being abnormal by the flexible caused car speed erroneous judgement of the hoist cable above and below passenger during elevator, it is set in The operating space curve A06 of door open running occurred is also possible under normal condition, and abnormal judgment threshold A03 is set as Values of the operating space curve A06 plus regulation surplus capacity (surplus capacity of velocity measuring).
The operating space (curve A06) by the flexible caused normal door open running of hoist cable is illustrated below.
Fig. 6 (A) represent because many people take into elevator make the elongation of winner hoist cable when car action (position and speed it is dynamic Make).Movement locus C01 represents the track of operating point, and the direction of arrow represents time dependent change direction.In starting point, lift car Rest in stop reference position (speed is zero).When there is many people to take into elevator, hoist cable elongation, the speed of lift car Improve, lift car declines and stopped in a certain position.Hereafter, there is up-down vibration repeatedly as spring in lift car, and It is static in final position.
Fig. 6 (B) indicates that many people have gone down the occasion of elevator, and C02 represents movement locus, in starting point, because having a lot People goes down elevator, and hoist cable shrinks, and lift car vibrates after rising, and due to there is many people to take into elevator therebetween, institute Judder is produced on descent direction with lift car.
In order to avoid exception will be detected as by the flexible caused car movement of hoist cable, the curve of normal region will be preferably represented A06 is set as the radial curve centered on stopping reference position.
Action when Fig. 7 represents to there occurs exception, dotted line B01 represent only according to stop reference position and car position it Between distance judge the judgment threshold of the abnormal prior art of car accidental movement.
In the prior art, when lift car is being rested against and stopped on reference position there occurs exception (failure) and along Movement locus B04 raises speed while when declining, in the case where car position has exceeded the threshold value represented by dotted line B01, examining Survey to there occurs exception, so, lift car continues speed-raising as shown in movement locus B06 so that the speed of car is as shown in the figure Become big.Therefore, even in detect abnormal time point make brake act and lift car is slowed down, to lift car stop Untill time for being spent and operating range still can be elongated (being represented in figure with existing system).
, it is necessary to will stop to lift car between ceiling or floor and lift car in order to prevent from being sandwiched in entrance hall Only required distance is set as threshold value (dotted line B06, B01), from safety considerations, preferably reduces after lift car emergent stopping Passenger is fled to the difference of height between car floor during elevator lobby and entrance hall floor from lift car.
In the present embodiment, due to judging exception according to judgment curves A03, so even in movement locus B04 field Close, also can detect exception in B04 and A03 point of intersection.Therefore, compared with prior art, it can detect earlier different Often, the operating range untill stopping can be shortened to, so as to make passenger safer elevator is left.
Figure 8 illustrates in order to shorten operating range and the shortening time during deceleration, sentencing for Fig. 7 is reduced as shown in B01 Disconnected threshold value B01 example.
In existing mode, it is possible to which it is different that the normal door open running of the lift car shown in Fig. 5 is acted into error detection Often.That is to say it is possible to error detection occur in the region D02 beyond dotted line B01 on the inside of curve A06.
In contrast to this, in the present embodiment, due in the absence of may occur the region D02 of error detection, so without can Error detection can be produced.Further, since by relative to the movement locus D03 of lift car beyond the region of enabling normal region (region D04) is detected as exception, so the exception that can form a prompt judgement out.It there occurs that car is surprisingly moved as a result, can improve Security when dynamic abnormal, while meaningless emergent stopping can also be avoided, so the quality of elevator operation service can be improved.
Fig. 9 is shown to be changed to the setting value of the abnormal judgment threshold (judgment standard) of the embodiment described in Fig. 5 Example.In this example, reference position and the threshold data storehouse 107 corresponding with judging distance X are stopped in change, for sedan-chair Railway carriage or compartment accidental movement is abnormal, the relation of car speed and car position according to needed for making lift car stop within predetermined distance To determine abnormal judgment threshold.
The lift car emergent stopping speed V and car position X required in assigned position (distance) X0 is made with deceleration β Necessary condition be:
In formula, (elevator brake or second brake (are hung deceleration when β represents to make lift car emergent stopping Rope brake and guide-rail brake etc.) deceleration), X is represented to stop the distance between reference position and car position, and V is represented Abnormal judgment threshold, X0 represents the assigned position (distance) that lift car should stop.
Figure 10 shows another example changed to the setting value of abnormal judgment threshold (judgment standard).At this In example, relative to the stop reference position of car landing, there is provided not examined to what neighbouring position (distance) was judged Survey region (being located at the region between two dotted line A07).By setting not detection zone, the mistake caused by elevator above and below as passenger Crossing property is vibrated so that stopping the car speed situation that (amplitude is narrow) moment increases substantially in a short time near reference position Under, it can also prevent error detection, thereby, it is possible to avoid unnecessary emergent stopping, the operation service of elevator can be improved.
Figure 11 is suitable with the block diagram of the UCMP shown in Fig. 2, shows characteristic and car speed according to each floor The abnormal example of car accidental movement is judged with car position, in this example, is accordingly determined with the floor position of car Determine threshold data 109.Specifically, floor position test section 108 detects (1 layer, 2 layers, 3 layers of the floor position of car Deng), and judge that car accidental movement is abnormal according to optimized threshold data 109 has been carried out according to each floor position.
The signal for being input to floor position test section 108 is from car position sensor (symbol 30) output shown in Fig. 1 Signal, as car position sensor use photoelectric sensor when, each building can be recognized according to the shape of detection plate Layer, and RFID tag or bar code etc. can also be used to recognize floor information.
Thus, also can be according to the flexible next of hoist cable even if the flexible Oscillation Amplitude of the hoist cable of each floor is different from each other Appropriate judgment threshold is determined, specific floor (such as floor more than floor and child more than the elderly is directed in apartment etc. Deng) setting can detect abnormal judgment threshold earlier, thus, it is possible to more correct and more promptly judge.
Figure 12 represents the judgement characteristic set in units of floor.
Figure 12 (A) represents the situation when floor position of lift car is located at the superiors, due to suspending the master of lift car in midair The length of hoist cable is short, so hoist cable stretches, produced Oscillation Amplitude is small, the normal area of the flexible caused door open running of hoist cable Domain (region surrounded by chain-dotted line A06) also diminishes.Therefore, (center is stop base to the radius of abnormal judgment curves (curve A03) Level is put) also diminish.That is, relative to identical car position, the judgment threshold of velocity anomaly diminishes.
Figure 12 (B) represents the situation when floor position of lift car is located at orlop, due to suspending the master of lift car in midair The length of hoist cable is long, so hoist cable stretches, produced Oscillation Amplitude is big, the normal area of the flexible caused door open running of hoist cable Domain (region surrounded by chain-dotted line A06) also becomes big.Therefore, (center is stop base to the radius of abnormal judgment curves (curve A03) Level is put) also become big.That is, relative to identical car position, the judgment threshold of velocity anomaly becomes big.
The judgment standard abnormal due to changing car accidental movement according to floor position, so can be in each floor position Put according to the flexible degree of hoist cable to carry out abnormal judgement, thus, it is possible to more correctly be judged and protected.In addition, also may be used To be arranged to replace floor position with car height position, and hung according to car height position (such as height is 10m) The stroke of rope sets judgment standard.That is, it is preferably provided to the landing of lift car more on the lower, the elevator The height and position of car is smaller, then is set to abnormal judgment threshold bigger.
Figure 13 is suitable with the block diagram of the UCMP shown in Fig. 2, shows according to the state of elevator above and below passenger to judge sedan-chair The abnormal example of railway carriage or compartment accidental movement.In this example, passenger's power-on and power-off are detected the presence of by passenger's up/down state judging part 110 Ladder, abnormal judgment threshold data 111 is determined according to testing result, and judge exception according to abnormal judgment threshold data 111.
The detection of passenger's up/down state is according to the change shape loaded in the car that load cell 32 is detected in car The gate light beam signal (signal can detect that the passenger by car door) of state or car door is carried out.There are passenger's power-on and power-off When terraced, according to because the flexible of main hoist cable sets abnormal judgment threshold caused by elevator up and down, thus, it is possible to more correctly enter Row judges.
Figure 14 shown according to elevator is whether there is above and below passenger to set the example of abnormal judgment threshold, and curve A03A is indicated Abnormal judgment threshold above and below passenger during elevator, curve A03B indicates abnormal judgment threshold during elevator above and below no passenger.Having It is flexible big due to main hoist cable caused by elevator above and below passenger above and below passenger during elevator, so by the normal region of door open running (Fig. 5 region surrounded by chain-dotted line A06) is set to greatly a bit, and will be abnormal according to the normal region of the door open running of expansion The radius (center is stop reference position) of judgment curves (curve A03A) is set to greatly a bit.The elevator above and below no passenger When, it is flexible small due to main hoist cable caused by elevator above and below passenger, so by the radiuses of abnormal judgment curves (curve A03B) (in The heart for stop reference position) be set to it is a little bit smaller.
Thus, elevator above and below passenger no matter is whether there is, can effectively detect that car is unexpected with shorter operating range It is mobile, the decline of elevator operating efficiency can be prevented while security is improved.In addition it is also possible to be arranged to power-on and power-off The patronage of ladder whether there is elevator above and below passenger to replace, and abnormal judgement is carried out according to the patronage of elevator up and down, also, The flexible of main hoist cable is directly detected by setting sensor in the end of hoist cable, abnormal judgement more can be correctly carried out.

Claims (11)

1. a kind of elevator device, is provided with unintended car movement protection device, when lift car opens in car door and hall door In the state of when being lifted the floor of elevator lobby, the unintended car movement protection device is judged as there occurs that car is unexpected Mobile abnormal, so that the lift car stops, the elevator device is characterized by:
The hall door switch of the car door switch for detecting the open state of the car door and the open state for detecting the hall door;
Detect the speed of lift car and the detection means of amount of movement and floor reference position;And
Safety controller, the safety controller is according to the testing result of the detection means and relative to car position institute What is set is used to judge the abnormal abnormal judgment threshold of car speed to judge that car accidental movement is abnormal,
The safety controller calculates the lift car according to the floor reference position and the amount of movement and stops building The required judging distance stopped between reference position and the stop reference position and car position during layer, and by institute State abnormal judgment threshold and be set to that the more big then described abnormal judgment threshold of the judging distance is smaller, and the abnormal judgment threshold Deceleration according to the car position and when making the lift car rest in assigned position is set.
2. elevator device as claimed in claim 1, it is characterised in that
The detection means, which has, to be used to detect the speed of lift car and the detection sensor of amount of movement and for detecting each The position sensor of the floor reference position of floor.
3. elevator device as claimed in claim 1, it is characterised in that
The safety controller calculates the lift car according to the floor reference position and the amount of movement and stops building The required judging distance stopped between reference position and the stop reference position and the car position, is passing through institute during layer State car door switch and the hall door switch detect elevator door be in open state when, with reference to by the abnormal judgment threshold with The threshold data storehouse that the judging distance is accordingly stored judges that car accidental movement is abnormal.
4. elevator device as claimed in claim 1, it is characterised in that
The abnormal judgment threshold is set for each floor position.
5. elevator device as claimed in claim 1, it is characterised in that
The abnormal judgment threshold is set to will not be because of making the hoist cable of lift car lifting above and below passenger during elevator What is produced stretches and makes erroneous judgement.
6. elevator device as claimed in claim 1, it is characterised in that
The safety controller calculates the lift car according to the floor reference position and the amount of movement and stops building The required judging distance stopped between reference position and the stop reference position and car position during layer, and set The not detection zone not judged the stop reference position.
7. elevator device as claimed in claim 1, it is characterised in that
More on the lower, the height and position of the lift car is smaller, then relative to car position for the landing of the lift car The abnormal judgment threshold be set bigger.
8. elevator device as claimed in claim 1, it is characterised in that
Passenger's up/down state judging part for detecting the presence of elevator above and below passenger is provided with, is judged in passenger's up/down state When portion has been detected as elevator above and below passenger, compared with being detected as the occasion without elevator above and below passenger, relative to car position The abnormal judgment threshold is set larger.
9. elevator device as claimed in claim 1, it is characterised in that
With producing the encoder of pulse in linkage with the lift car, be arranged on the reflection type optical fax of the lift car Sensor and the detection plate on the door of the elevator lobby of each floor, are calculated by being counted to the pulse Go out the speed and amount of movement of the lift car, be located at the position relative with the detection plate in the reflective photoelectric sensor When, detect the floor reference position.
10. elevator device as claimed in claim 1, it is characterised in that
The speed of the lift car is detected by reading magnetic code data of the record on the tape pasted along lifting direction Degree and amount of movement and floor reference position.
11. elevator device as claimed in claim 1, it is characterised in that
Speed and amount of movement and the floor reference position of the lift car are detected using optical detecting method.
CN201510184646.4A 2010-06-18 2010-06-18 Elevator device Active CN104860148B (en)

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JP6636411B2 (en) * 2016-11-18 2020-01-29 株式会社日立製作所 Elevator control device and elevator control method
CN107364779A (en) * 2017-08-28 2017-11-21 武汉理工大学 A kind of magnetic suspension cage
CN110065861B (en) * 2018-01-24 2020-12-25 日立楼宇技术(广州)有限公司 Method, device and equipment for detecting accidental movement of elevator car and storage medium
CN109250600B (en) * 2018-10-31 2020-07-21 住友富士电梯有限公司 Early warning system and elevator that open door by mistake of hoistway door
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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JP2005126181A (en) * 2003-10-23 2005-05-19 Mitsubishi Electric Corp End floor deceleration device of elevator
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