CN102745563A - Position detection apparatus for elevator and method thereof - Google Patents
Position detection apparatus for elevator and method thereof Download PDFInfo
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- CN102745563A CN102745563A CN2012100327391A CN201210032739A CN102745563A CN 102745563 A CN102745563 A CN 102745563A CN 2012100327391 A CN2012100327391 A CN 2012100327391A CN 201210032739 A CN201210032739 A CN 201210032739A CN 102745563 A CN102745563 A CN 102745563A
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Abstract
The present invention provides a position detection apparatus for an elevator and a method thereof, which are used for detecting 4-row 2-column information represented by shielding plates (31-1-31-n) for each floor (1-n), integrating digital information obtained by photoelectric sensors (20 (21-1-21-4)) and the operation direction information of an elevator car through the shielding plates, enabling the digital information with symmetry in various direction as different position information for use. Therefore, in order to detect the position of the elevator car, the determined position in an elevating channel is provided with the shielding plates (31, 32, 33) representing the digital information as a position indication body, and inside the elevator car there are provided the photoelectric sensors (20 (21-1-4)), thereby being capable of distinguishing and detecting more position information through using fewer shielding plates.
Description
Technical field
The present invention relates to a kind of detection in elevator, realize car position control and with the detecting device and the method for required car position such as the corresponding security function of car position.
Background technology
In elevator device, move to destination floor in order to make lift car from current location, perhaps current location is shown, need to be grasped the position of lift car in hoist trunk.Lift car move through that electrical motor to the hoist cable that drives the suspention lift car carries out speed control and position control realizes.At this moment, measure the speed and the displacement of lift car according to the output of the coder that rotates along with motor reel.Except displacement, can also grasp the position of lift car through the detection reference position.When the detection reference position, for example can detect through the switch that lift car is broken off be arranged on lower end in the hoist trunk etc. to be located.The distance that the floor that the car position that obtains through said method for example perhaps passes through with last stop in elevator control device is numbered and started at from the hoist trunk lower end shows.
As the detecting device of car position,, also has the detecting device of electronic type except switch etc. the mechanical detecting device.As one of method that detects car position, the opto-electronic pickup that can enumerate through being arranged on the lift car detects the method that is arranged on the shield in the hoist trunk.In the method, the opto-electronic pickup of a plurality of lift cars is set in the horizontal direction, and each opto-electronic pickup determines whether crested according to shield shape in the horizontal direction.Shield has the quantity bit information identical with the quantity of opto-electronic pickup in the horizontal direction.The shape of shield is configured to different shapes according to the position that is provided with of shield in hoist trunk; And make can not produce repetition between the shield that the output pattern of the opto-electronic pickup in the time of can detecting shield according to lift car thus (combination of the output of a plurality of opto-electronic pickups) detects the position of lift car.
In addition; A kind of method is for example disclosed in patent documentation 1; It is that shape on the vertical direction is arranged to variable shape with shield at the car moving direction; Make the output pattern of opto-electronic pickup change, but increase the quantity of detection position with respect to the quantity of opto-electronic pickup thus along with moving of lift car.In the method, shield also has many bit informations in vertical direction, and the occasion that only has many bit informations with shield is in the horizontal direction compared, 1 quantity of information increase that shield can show.
The safety device of elevator also need utilize car position.A kind of implementation method of terminal floor forced deceleration function is for example disclosed in patent documentation 2; It is provided with the different upper limits according to car position to car speed; Surpassed on this in limited time in car speed; Make shutdown feature action, this shutdown feature be specifically drive motor the power supply "cut-off" drvice, be arranged on the drg on the winch etc. and be arranged on emergency braking apparatus on the lift car etc.
Traditional elevator car safety adopts mechanical structure, as the safety device of mechanical structure, can enumerate out the limit switch whether the detection lift car has exceeded normal range of operation, when lift car breaks off limit switch, and the shutdown feature action.
In recent years, mechanical safety device is replaced by electronic safety device gradually.In electronic safety device; Will from be arranged in the hoist trunk or lift car on the signal of various sensors outputs as input; And incoming signal is handled through decision circuit or microcomputer; Detecting when unusual, getting into the signal of safe condition to shutdown feature output impelling elevator.The position detecting device that is made up of opto-electronic pickup can be used as the input of electronic safety device.
Patent documentation 1: japanese patent laid-open 5-51178 communique
Patent documentation 2: No. 4412175 communiques of Japanese Patent
When shield is given the bit information on the vertical direction; If adopt the shield that is symmetric shape in vertical direction; When then the moving direction of the lift car when detecting each shield was reversing sense, the output pattern of opto-electronic pickup became identical figure.Therefore; The shield of this shape can not use as the shield of expression different position information in a hoist trunk; With respect to the information content that the bit information quantity of bit information quantity (opto-electronic pickup quantity) and the vertical direction of the horizontal direction of the shield of regulation can show, utilizable location information quantity (the shape quantity of shield just) tails off.
Summary of the invention
One aspect of the present invention provides a kind of position detecting device of elevator; It has: the position indication body; Said position indication body is arranged on a plurality of places in the elevator lifting channel; And, on the direction beyond car moving direction and this car moving direction, have and the cooresponding shape of mutually different numerical information according to the place is set; Sensor, said sensor carries on lift car, from the said numerical information that said position indication body is had, reads the numerical information of a plurality of bits on the direction beyond the said car moving direction; And position judgment unit; Said position judgment unit uses the numerical information that is read by said sensor to judge the position of said lift car; The position detecting device of said elevator is characterised in that, the said numerical information that said position judgment unit is read through combination and the service direction information of said elevator are judged the position of lift car.
Of the present invention preferred embodiment in; As said position indication body; Can comprise and having when being used to represent the numerical information of a plurality of bits on the direction (for example with the perpendicular direction of car moving direction) beyond the said car moving direction; Be illustrated in the position indication body of shape of the numerical information of the said a plurality of bits that are arranged in multirow on the said car moving direction, said sensor preferably reads the numerical information of a plurality of bits on the said vertical direction simultaneously.
Of the present invention preferred embodiment in, the position of lift car is judged in said position judgment unit through the service direction information that makes up previous position judgment result and this numerical information that reads and said elevator.
(invention effect)
According to a preferred embodiment of the invention; Compare with the method for detecting position of the information of not utilizing the car moving direction; The information content that the horizontal direction that decides with respect to the shape by number of sensors and position indication body and the bit information quantity of vertical direction can show can increase as the information content that location information is utilized.
Thus, can reduce the quantity of the required sensor of the location information that detects specified quantity, the size that can come the contracted position indication body through the bit information quantity that reduces the position indication body can reduce the organization fee of system thus.
Description of drawings
Fig. 1 is the integrally-built lateral plan of elevator device that expression has the related position detecting device of an embodiment of the present invention.
Fig. 2 is the structure drawing of device of the output input relation of the related position detecting device of an expression embodiment of the present invention.
Fig. 3 is the shape figure as the shield of the related position indication body of an embodiment of the present invention.
Fig. 4 is the functional block diagram of the related elevator position detector of an embodiment of the present invention.
Fig. 5 is the processing flow chart of the related elevator position detector of an embodiment of the present invention.
Fig. 6 is the processing flow chart of the related method for detecting position of an expression embodiment of the present invention.
Fig. 7 is the chart of the related position judgment rule of an expression embodiment of the present invention.
Fig. 8 is the state change map of the related position judgment rule of an expression embodiment of the present invention.
Nomenclature: 1 ... Lift car, 2 ... Electrical motor, 3 ... The winch drg, 4 ... The drg driving circuit, 5 ... Inverter; 6 ... Cut off, 7 ... Source of AC, 10 ... Main hoist cable, 11 ... Counterbalanced weight, 12 ... Speed controller rope; 13 ... Governor, 14 ... Rotary encoder, 20 ... Photoelectric transducer element, 21-1～4 ... Opto-electronic pickup, 31-1～4 ... The floor numbering detects uses shield; 32-1～2 ... The reference position is detected and is used shield, 33-1～2 ... End position detects and uses shield, 40 ... Controller, 51 ... The rotary encoder signal; 52 ... Photo-sensor signal will, 61 ... The inverter control signal, 62 ... The energising cut-off signal, 63 ... The drg drive signal; 71 ... The coder input function, 72 ... The opto-electronic pickup input function, 73 ... The speed calculation function, 74 ... The moving direction discrimination function; 75 ... Position counting function, 76 ... The test pattern memory function, 77 ... Position detecting function, 78 ... The safety device holding function; 79 ... The lift car controllable function, 80 ... The floor numbering is differentiated table, 81 ... Security function is differentiated table, 90 with the position ... Floor detected state transformation diagram.
The specific embodiment
Fig. 1 is the integrally-built lateral plan of elevator device that expression has the related position detecting device of an embodiment of the present invention.As shown in Figure 1, counterbalanced weight 11 is connected with main hoist cable 10, drives main hoist cable 10 through electrical motor 2, and lift car 1 is gone up and down in hoist trunk.Electrical motor 2 is by driving via cut off 6 and source of AC 7 bonded assembly inverters 5.When cut off 6 actions, the propulsive effort of electrical motor 2 disappears.Winch drg 3 suppresses the driving of electrical motor 2, makes lift car 1 is produced braking force.Winch drg 3 is in operating state when flat, when energising, braking maneuver is disengaged.
Speed controller rope 12 moves and is pulled along with lift car 1, makes governor 13 rotations.Rotary encoder 14 rotates with governor 13 and produces impulse singla.Variable quantity through to the number of pulses of rotary encoder 14 adds up, and can access the displacement of lift car 1, and the time average of the variable quantity of the number of pulses through calculating rotary encoder 14 can access the speed of lift car 1.Be provided with photoelectric transducer element 20 in the bottom of lift car 1, photoelectric transducer element 20 be arranged in the hoist trunk as the shield of position indication body relatively to the time, read numerical information by this shield prompting.
In hoist trunk; As the position indication body; Be provided with the shield 31-1～n (n is an integer, and identical with floor quantity) of expression floor numbering, shield 32-1～2 that usefulness is detected in the reference position, with the cooresponding locative shield 33-1 of limit switch～2.The shape of various shields will after state part and explain with reference to Fig. 3.
Fig. 2 is the structure drawing of device of the output input relation of the related position detecting device of an expression embodiment of the present invention.Controller 40 is made up of microcomputer, power circuit and input-output device.Microcomputer has central process unit (CPU:Central Processing Unit), random access memory (RAM:Random Access Memory), read-only memory (ROM) (ROM:Read Only Memory), numeral output input and peripheral circuit such as coder input and communication interface, and said various piece connects through internal bus.The software that is used for realizing controllable function and the security function etc. of elevator device is stored in ROM, and on CPU, carries out.
The control signal 61 and danger signal 62,63 slave controllers 40 of microcomputer are exported via input-output device.Signal 61 is used for control inverter 5 and makes lift car 1 operation.Energising when cut off 6 is conducting (ON) at signal 62 is that energising is disconnected when breaking off (OFF) at signal 62.Drg driving circuit 4 makes during for conducting drg 3 discharge at signal 63, makes drg 3 actions when breaking off at signal 63.Controller 40 makes danger signal 62,63 conductings when elevator device normally moves, when perhaps elevator being stopped in the time of need making elevator get into safe condition having taken place unusual, danger signal 62,63 is broken off.
Fig. 3 representes that the related position indication body of an embodiment of the present invention is the shape of various shields.The floor numbering detects with shield 31-1～n and is arranged in 2 row bit column, and the reference position detection detects with shield 33-1～2 with shield 32-1～2 and end position and is arranged in 1 row bit column, and these shields are the shields that are used to judge the position.In shield 31-1～n, have 2 row, 4 row openings, in shield 32-1～2 and 33-1～2, have 1 row, 4 row openings, astomous situation different because of shield and opening are arranged.In Fig. 3, offer porose opening and represent with dark colour, do not offer the opening in hole and represent with white.Each shield is so that the row of opening are parallel with hoist trunk just parallel with the car moving direction, and the row of opening is arranged in the hoist trunk with the parallel mode in opto-electronic pickup 21-1～4 (with reference to Fig. 2).The 1st～4 row of opening are corresponding with opto-electronic pickup 21-1～4 (with reference to Fig. 2); At the porose opening of offering of position that shield is not set and shield; Photo-sensor signal will 52-1～4 outputs " 0 "; At the opening of not offering the hole of shield and the position beyond the opening, photo-sensor signal will 52-1～4 outputs " 1 ".Thus, 1 row opening is equivalent to the information of 4 bits, and shield 31-1～n has the information of 8 bits, and shield 32-1～2 and 33-1～2 have the information of 4 bits.
Fig. 4 is the functional block diagram of the related elevator position detector of an embodiment of the present invention, is to be used to realize the functional block diagram of a part based on the software of the elevator control functions of car position information and security function.The number of pulses of 71 pairs of rotary encoder signals 51 of coder input function adds up.During pulse when detecting lift car and moving number of pulses is added 1 up, when detecting reciprocal pulse, number of pulses is deducted 1.Opto-electronic pickup input function 72 is read in photo-sensor signal will 52-1～4, and it is kept as test pattern.
Speed calculation function 73 is calculated the speed of lift car 1 according to the accumulative total number of pulses that is obtained by coder input function 71.Car speed is a positive number with the up direction for example, is negative with the down direction.Moving direction discrimination function 74 is judged the moving direction of lift car 1 according to the number of pulses that is obtained by coder input function 71.The previous value that keeps number of pulses in advance when the currency of number of pulses is compared increase with previous value, is judged as up direction; When comparing minimizing with previous value; Be judged as down direction, when numerical value is constant, is judged as elevator and is in halted state.Position counting function 75 calculates the position of lift car 1 in hoist trunk according to the accumulative total number of pulses that is obtained by coder input function 71.Position counting function 75 is with the pulse aggregate-value that from basic point the begin storage of car position information as rotary encoder 14.The below end position that basic point is stated after for example can being.Receiving from position detecting function 77 after the reference position detected this notice, the car position information that is kept is modified to from the numerical value of position detecting function 77 notices.After this, carry out additive operation through variable quantity and upgrade car position information the accumulative total number of pulses that obtains by coder input function 71.Under the situation that does not detect the reference position, car position information is invalid.
Test pattern memory function 76 is with the mode of FIFO (FIFO:First-in First-out), and memory limited (is more than the 2m+3 at this maximum number of lines m that is set at respect to shield) is by the test pattern of opto-electronic pickup input function 72 maintenances.In order to detect (0,0,0,0) in the position that shield is not set, detect at the boundary of opening (1,1,1,1); When for example having read shield 31-1 from top to bottom, storage (0,0,0,0), (1,1,1,1), (1; 1,0,0), (1,1,1,1), (1,0,1; 1), (1,1,1,1), (0,0,0,0) such test pattern.Above-mentioned test pattern is represented with one group of signal according to the order of signal 52-1 to 52-4.When variation has taken place test pattern, the test pattern of being stored is appended.On the other hand, 76 pairs of each figures of being stored of test pattern memory function give representing whether it is the information of new figure, just give expression its information of whether having been obtained by position detecting function 77.
The car position information that safety device holding function 78 is calculated according to the car speed information of being calculated by speed calculation function 73 (numeric data of expression speed), by position counting function 75 and by position detecting function 77 detected detection position information (kind of expression detection position and the numerical value of car position); Judge whether various security functions move, and switching stops to export 62,63.As an example of security function, has terminal floor forced deceleration function.The contents processing of this terminal floor forced deceleration function is; Has the car speed upper limit with respect to car position with the data representation of sheet form; Numerical value according to the car position information of calculating by position counting function 75 retrieval car speed upper limit from table; Surpassed on the car speed that retrieves in limited time in the car speed information of calculating by speed calculation function 73, will stop exporting 62,63 and switch to conducting, lift car 1 is stopped from disconnection.Below, with reference to Fig. 7 conduct another example with the contents processing of the cooresponding security function of limit switch is described.
The car position information that car controllable function 79 is calculated according to the car speed information of being calculated by speed calculation function 73 with by position counting function 75 etc. is controlled the speed and the position of lift car.
Fig. 5 is the processing flow chart of the related elevator position detector of an embodiment of the present invention, shows the treatment scheme of being implemented by the software of Fig. 4.This treatment scheme is carried out with some cycles repeatedly.In step S11, coder input function 71 reads rotary encoder signal 51 and photo-sensor signal will 52-1～4 respectively with opto-electronic pickup input function 72.Then in step S12, calculate the speed of lift car by speed calculation function 73.Then, in step S13, judge the moving direction of lift car by moving direction discrimination function 74.In step S14, by the position of position counting function 75 calculating lift cars.In step S15; By test pattern memory function 76 opto-electronic pickup input function 72 detected figures and up-to-date test pattern in the test pattern of being stored are compared; When result relatively representes that both are inconsistent, opto-electronic pickup input function 72 detected figures are appended storage as new detected test pattern.After this, in step S16, carry out the detection of car position by position detecting function 77 and handle.Then, if when in step S16, detecting the reference position, in step S17 by position detecting function 77 to position counting function 75 notice reference position information and location informations.According to this notice, 75 pairs of car positions of position counting function are revised.Then, in step S18, the safety device holding function is carried out the processing of security function.After this, in step S19,79 pairs of car positions of car controllable function are controlled.
Fig. 6 is the processing flow chart of the related method for detecting position of an expression embodiment of the present invention.Be illustrated in the treatment scheme of implementing by position detecting function 77 among the step S16 of Fig. 5.In step S21, obtain test pattern by test pattern memory function 76.In step S22, confirm whether the test pattern that in step S21, obtains is new test pattern, when judged result is represented to be (being new test pattern), enters into step S23, when judged result is represented to deny (not being new test pattern), end process.In step S23, judge whether new test pattern is blank i.e. (0,0,0,0), when judged result is represented to be, enters into step S24, when judged result is represented not, enters into step S25.In step S24, make the detected state initialization of position detecting function 77.As detected state, current test pattern line number is arranged, be the line number L of (0,0,0,0), (1,1,1,1) test pattern in addition specifically, the initial value of L is 0.End process after the step S24.In step S25, judge that new test pattern whether for the peristome border is (1,1,1,1), when judged result is represented to be, enters into step S26, when judged result is represented not, enter into step S27.In step S26, current test pattern line number L is added 1 back end process.
In step S27, judge whether new test pattern is consistent with special pattern.Carry out position judgment with consistent only being meant of special pattern with 1 row test pattern.In the present embodiment, special pattern be set at (0, *, *, *) (* representes arbitrary value).When judged result is represented to be, enter into step S28, when judged result is represented not, enter into step S29.In step S28, only carry out the judgement of position according to new test pattern.In step S29, judge whether current test pattern line number L reaches regulation line number (being 2 row in the present embodiment).When judged result is represented to be, enter into step S30, end process when judged result is represented not.In step S30, carry out position judgment according to the test pattern of L capable (being 2 row in the present embodiment).About the details of the processing of step S28 and step S30 after state part and explain with reference to Fig. 7.
Fig. 7 is the chart of the related position judgment of an expression embodiment of the present invention rule, in this chart to having made regulation with the corresponding contents processing of rule and detection position of the position judgment of step S28 and step S30.Position detecting function 77 has table 80,81.
Table 80 is the tables that are used for carrying out according to the test pattern of L capable (L=2 in the present embodiment) at step S30 position judgment.In the test pattern of table 80, got rid of (0,0,0,0) and (1,1,1,1).In test pattern is (1,1,0,0) and (1; During the figure that 0,1,1) connects together; If the car moving direction is a down direction, represent that then photoelectric transducer element reads shield 31-1 20 this moments on down direction, so the floor numbering is judged as the 1st layer.If the car moving direction is a up direction, represent that then photoelectric transducer element reads shield 31-n 20 this moments on up direction, so the floor numbering is judged as the n layer.Position detecting function 77 will detect the 1st layer of information notice position counting function 75 that perhaps detects the n layer.Also can be arranged to make table 80 to have and the cooresponding location information in shield 31-1 peristome lower end or shield 31-n peristome upper end, and, revise by 75 pairs of car position information of position counting function with this location information notification position counting function 75.
Equally, in test pattern be (1,0,1,1), (1; 1,0,0) time, if the car moving direction is a up direction; Then being judged as is the 1st layer, if the moving direction of car is a down direction, then being judged as is the n layer, and notifies position counting function 75 with judged result.In test pattern is (1,0,1,0), (1,1; 0,1), and the car moving direction is (1,1 in test pattern perhaps when being down direction; 0,1), (1,0,1; 0), and the car moving direction is when being up direction, and then being judged as is i layer (1＜i＜n), and notify position counting function 75 with judged result.
Shield 31-1 and shield 31-n are shaped as laterally zygomorphic shape.If in position probing, do not utilize the car moving direction, then can't distinguish these 2 shields.At this moment, for example shield 31-1 only being set and shield 31-n is not set, be that the occasion and the test pattern of (1,1,0,0), (1,0,1,1) is (1,0,1,1), the occasion of (1,1,0,0) all is judged as with test pattern is the 1st layer.
Relative therewith, because the present invention can distinguish shield 31-1 and shield 31-n and discern as variform shield, so compare with the occasion of not utilizing car moving direction information, utilizable shield shape increases.
Table 81 is the tables that use when in step S28, only carrying out position judgment according to new test pattern.When photoelectric transducer element 20 detected shield 32-1, being judged as according to test pattern (0,0,0,1) was first reference position 1.At this moment, position detecting function 77 is with reference position information and location information notification position counting function 75.Location information is with numeric representation, and when the car moving direction was up direction, location information was x1a, and when the car moving direction was down direction, location information was x1b.Thus, position counting function is modified to x1a or x1b with car position information.Opening portion sizableness in vertical direction among the difference of x1a and x1b and the shield 32-1.Equally, when photoelectric transducer element 20 detected shield 32-2, being judged as according to test pattern (0,0,1,0) was second reference position.When the car moving direction was up direction, location information was x2a, and when the car moving direction was down direction, location information was x2b.
When photoelectric transducer element 20 detects shield 33-1,, be judged as according to test pattern (0,1,0,0) then that to be in the below end position be lift car insurmountable lower position when in hoist trunk, moving if the car moving direction is a down direction.At this moment, position detecting function 77 will detect the information notice safety device holding function 78 of below end position.In addition, also can be arranged to make table 81 to have and the cooresponding location information in the upper end of shield 33-1, and with this location information notification position counting function 75, thereby revise by 75 pairs of car position information of position counting function.Equally, when photoelectric transducer element 20 detects shield 33-2, if the car moving direction is a up direction; Then according to test pattern (0; 1,0,1) is judged as that to be in the top end position be lift car insurmountable upper limit position when in hoist trunk, moving.At this moment, position detecting function 77 will detect the information notice safety device holding function 78 of top end position.Safety device holding function 78 below receiving end position or above after the notice of end position, cut-off signal 62 and the drg drive signal of will switch on 63 switches to disconnection from conducting, and lift car 1 is stopped.
So; Through shield being given multirow information to increase the quantity of information that can show; The shape set of the shield of simultaneously that expression is relevant with security function position is the shape that matches with special pattern, makes only just can carry out position judgment according to 1 row test pattern, thus; Compare with the occasion of carrying out position judgment according to the multirow test pattern, can shorten the response time of security function.
As a purposes in the purposes that detects the floor numbering, can enumerate out the recovery after the power failure.After power failure, the car position information dropout of position detecting function 77, under this situation, car position information becomes invalid, thereby can not carry out the operation of lift car.Countermeasure as this moment; In the structure that does not adopt present embodiment; And for example adopt when being the method for reference position with the below limit switch, no matter lift car is positioned at which position of hoist trunk, all must make lift car slowly drive to the below limit-switch positions.If hoist trunk is very long, then this reference position is detected operation and is spent great amount of time possibly.
Relative therewith, when adopting the structure of present embodiment, can take following countermeasure.At first, make lift car slowly drive to nearest floor down.When shield 31-1～n that detects each floor or shield 31-1 (below end position); Position counting function 75 receives and each cooresponding location information in shield position from position detecting function 77; Car position information is revised, can be detected the reference position thus and make car position information become effective.That is to say that only need slowly drive to nearest floor just can detect the reference position, so can shorten recovery time.Can adopt the reason of above-mentioned countermeasure to be; The information content that can show through the bit information that effectively utilizes the lift car mobile message to increase bit information quantity (opto-electronic pickup quantity) and the vertical direction of the horizontal direction that shield has; Make in the occasions that need a lot of reference positions because of floor quantity etc.; Also can deal with, can reduce the organization fee of elevator device thus with the opto-electronic pickup of lesser amt and the horizontal direction of shield and the bit information quantity of vertical direction.
Fig. 8 is the state change map of the related position judgment of an expression embodiment of the present invention rule, shows that position detecting function 77 is judged according to table 80 and the part of the state change map that uses during the appropriateness of detected floor numbering.State variation Figure 90 represent that current floor numbering promptly stops at last or through the time detected floor numbering state variation.When current floor is numbered the 2nd layer, be down direction if detect the 1st layer and car moving direction, then current floor numbering changes to the 1st layer., if detected be the 1st layer but car moving direction during for up direction because it lacks appropriateness as position probing, taken place unusually, and floor that will be current numbering is set at the value of representing mistake so be judged as position detecting function.Occurring when wrong, lift car controllable function 79 is taked energising cut-off signal 62 switched to break off from conducting with drg drive signal 63 to make lift car 1 the stops measure of etc.ing, makes elevator entering safe condition.
In state variation Figure 90, utilized car moving direction information as the change condition.Compare with the occasion of not utilizing car moving direction information, this method can improve the precision that appropriateness is judged.
In addition, judge, also can be employed in and utilize the method for symmetric figure up and down under the situation that does not have car moving direction information through appropriateness shown in Figure 8.For example, under the situation of n >=3, when the current floor in state variation Figure 90 is numbered the 2nd layer,, then can be judged as this floor and not be the n layer but the 1st layer if test pattern is (1,1,0,0), (1,0,1,1).But, when adopting this method for detecting position, current car position information need be known, this method can't be adopted during the elevator recovery after the power failure that car position information has been lost etc.
Relative therewith, according to the present invention,, also can carry out position probing even under the state of having lost car position information.
In the present embodiment, opto-electronic pickup and shield have been adopted as position detecting device.The device that but also can adopt other is as position detecting device of the present invention.For example, can replace the opto-electronic pickup of lift car, use bar code to replace shield along the device that the vertical direction arrangement forms with horizontal direction with laser scanner.In addition, can also replace opto-electronic pickup, use RFID is replaced shield along the device that the vertical direction arrangement forms with the RFID reader.That is to say, so long as can show a plurality of bit informations at a car position, and along with the position indicating mechanism of the different bit information of the mobile performance of lift car and the position-detection sensor that detects this mechanism, just can substitute.
Claims (9)
1. the position detecting device of an elevator, it has:
Position indication body, said position indication body are arranged on a plurality of places in the elevator lifting channel, and according to the place is set, on the direction beyond car moving direction and this car moving direction, have and the cooresponding shape of mutually different numerical information;
Sensor, said sensor carries on lift car, from the said numerical information that said position indication body is had, reads the numerical information of a plurality of bits on the direction beyond the said car moving direction; And
Position judgment unit, said position judgment unit use the numerical information that is read by said sensor to judge the position of said lift car,
The position detecting device of said elevator is characterised in that,
The said numerical information that said position judgment unit reads through combination and the service direction information of said elevator are judged the position of lift car.
2. the position detecting device of elevator as claimed in claim 1 is characterized in that,
As said position indication body; When comprising numerical information, be illustrated in the position indication body of shape of the numerical information of the said a plurality of bits that are arranged in multirow on the said car moving direction with a plurality of bits on the direction that is used to represent beyond the said car moving direction.
3. like the position detecting device of claim 1 or 2 described elevators, it is characterized in that,
Direction beyond the said car moving direction is and the perpendicular direction of said car moving direction that said sensor reads the numerical information of a plurality of bits on the said vertical direction simultaneously.
4. like the position detecting device of each the described elevator in the claim 1 to 3, it is characterized in that,
When once read by said sensor with the perpendicular direction of said car moving direction on the numerical information of a plurality of bits with the numerical information that is predetermined when consistent, said position judgment unit is only according to the position that should be judged lift car by numerical information that said sensor once reads.
5. like the position detecting device of each the described elevator in the claim 1 to 4, it is characterized in that,
Said position judgment unit is judged unusual or fault through making up previous position judgment result with the service direction information of this numerical information that reads and said elevator.
6. like the position detecting device of each the described elevator in the claim 1 to 5, it is characterized in that,
Said sensor have a plurality of with the perpendicular direction of said car moving direction on the opto-electronic pickup arranged.
7. the position detecting device of an elevator, it has:
Position indication body, said position indication body are arranged on a plurality of places in the elevator lifting channel, and according to the place is set, the car moving direction and with the perpendicular direction of this car moving direction on have and the cooresponding shape of mutually different numerical information;
Sensor, said sensor carries on lift car, from the said numerical information that said position indication body is had, read simultaneously with the perpendicular direction of car moving direction on the numerical information of a plurality of bits; And
Position judgment unit, said position judgment unit use and to be accompanied by moving of said lift car and to judge the position of said lift car by the numerical information that said sensor repeatedly reads continuously,
The position detecting device of said elevator is characterised in that,
The position of lift car is judged in said position judgment unit through the service direction information of the said numerical information that repeatedly reads continuously of combination and said elevator.
8. the method for detecting position of an elevator, said elevator has:
Position indication body, said position indication body are arranged on a plurality of places in the elevator lifting channel, and according to the place is set, on the direction beyond car moving direction and this car moving direction, have and the cooresponding shape of mutually different numerical information; And
Sensor, said sensor carries on lift car, from the said numerical information that said position indication body is had, reads the numerical information of a plurality of bits on the direction beyond the said car moving direction;
The method for detecting position of said elevator has the position judgment step that numerical information that use reads by said sensor is judged the position of said lift car,
The method for detecting position of said elevator is characterised in that,
Service direction information with the said numerical information that reads through combination and said elevator is judged the position judgment step of elevator car position.
9. the method for detecting position of elevator as claimed in claim 8 is characterized in that,
As said position indication body; Comprise and having when being used to represent the numerical information of a plurality of bits on the direction beyond the said car moving direction; Be illustrated in the position indication body of shape of the numerical information of the said a plurality of bits that are arranged in multirow on the said car moving direction
Said position judgment step is accompanied by moving of said lift car through combination and the service direction information of the numerical information that repeatedly read continuously by said sensor and said elevator is judged the position of lift car.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-091642 | 2011-04-18 | ||
| JP2011091642A JP2012224422A (en) | 2011-04-18 | 2011-04-18 | Elevator position detecting device and method |
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| CN102745563A true CN102745563A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100327391A Pending CN102745563A (en) | 2011-04-18 | 2012-02-14 | Position detection apparatus for elevator and method thereof |
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| CN (1) | CN102745563A (en) |
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| CN103803367A (en) * | 2013-12-19 | 2014-05-21 | 西子奥的斯电梯有限公司 | Elevator reset operation method |
| WO2014082258A1 (en) * | 2012-11-29 | 2014-06-05 | Otis Elevator Company | Position recovery via dummy landing patterns |
| CN105270949A (en) * | 2014-07-17 | 2016-01-27 | 株式会社日立制作所 | Elevator |
| CN105460712A (en) * | 2014-09-30 | 2016-04-06 | 株式会社日立制作所 | Elevator |
| CN106276467A (en) * | 2016-08-15 | 2017-01-04 | 郑耿灶 | Accidental movement of elevator cage protection device |
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| CN111731959A (en) * | 2020-07-30 | 2020-10-02 | 菱王电梯股份有限公司 | Elevator terminal detection protection device and detection protection method thereof |
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| JP6193000B2 (en) * | 2013-06-12 | 2017-09-06 | 株式会社日立製作所 | Encoder abnormality detection device and elevator apparatus using encoder abnormality detection device |
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| JP6464993B2 (en) * | 2015-11-02 | 2019-02-06 | フジテック株式会社 | Elevator equipment |
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| WO2014082258A1 (en) * | 2012-11-29 | 2014-06-05 | Otis Elevator Company | Position recovery via dummy landing patterns |
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| CN106276467A (en) * | 2016-08-15 | 2017-01-04 | 郑耿灶 | Accidental movement of elevator cage protection device |
| CN112272752A (en) * | 2019-02-22 | 2021-01-26 | 株式会社日立大厦*** | Reference core position calculation device and reference core calculation method for elevator |
| CN112272752B (en) * | 2019-02-22 | 2022-06-24 | 株式会社日立大厦*** | Reference core position calculation device and reference core calculation method for elevator |
| CN110526053A (en) * | 2019-07-30 | 2019-12-03 | 上海新时达电气股份有限公司 | The bearing calibration of elevator staggered floor, device and computer readable storage medium |
| CN110526053B (en) * | 2019-07-30 | 2022-01-18 | 上海新时达电气股份有限公司 | Elevator staggered floor correction method and device and computer readable storage medium |
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