CN102951517A - Controller for elevator - Google Patents

Controller for elevator Download PDF

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Publication number
CN102951517A
CN102951517A CN201210266485XA CN201210266485A CN102951517A CN 102951517 A CN102951517 A CN 102951517A CN 201210266485X A CN201210266485X A CN 201210266485XA CN 201210266485 A CN201210266485 A CN 201210266485A CN 102951517 A CN102951517 A CN 102951517A
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elevator
detection sensor
controller
floor
sensor
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CN201210266485XA
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CN102951517B (en
Inventor
星野孝道
松土贵司
松本惠治
高山直树
井上真辅
吉川敏文
大宫昭弘
深田裕纪
岩本晃
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Hitachi Ltd
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Hitachi Ltd
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Abstract

The present invention provides a controller for an elevator that enables a place with abnormal landing precision to be identified at a glance during elevator inspection, without having to add special devices.In a controller for an elevator that has a position detection sensor 80 attached to an elevator car 1 and to-be-detected objects 81 to 83 that are placed in a hoistway and are detected by the position detection sensor, the controller detectingthe position of the elevator car, the position detection sensor has four sensor units 80A to 80D15 attached to the elevator car side by side; each of the to-be-detected objects has a plurality of to-be detected units 81a to 81d, 82a and 82d, or 83a to 83d, which are detected at the same time by at least two sensor units of the four sensor units arranged20 side by side underneath the elevator car; an abnormality is detected in response to a difference between output timings of the at least two sensor units.

Description

Controller for elevator
Technical field
The present invention relates to a kind of lift car carries out lifting action in hoist trunk elevator, especially relate to a kind ofly when lift car will be accommodated on the predetermined stop layer, can grasp exactly floor and stop the controller for elevator that unusual position has occured precision.
Background technology
In the prior art, when elevator carries out lifting in hoist trunk, need to detect the position of lift car in hoist trunk.In addition, in order to prevent that cost from rising and reliability decrease, and stop precision in order to improve floor, for example use a plurality of position-detection sensors that are arranged on the lift car side and a plurality of detected body that is arranged on the elevator lobby side, arrive in the time of to open the lifting position of elevator door in the position of lift car, but detect the up and down elevator door opened areas of elevator of expression passenger.In addition, lifting along with lift car is produced the position that the output number of pulses of the impulse deviser of pulse counts to calculate lift car by microcomputer, and come the floor of lift car and the floor of elevator lobby are carried out contraposition, the difference of height when reducing dock floor thus by calculating various controlling quantitys.
That is to say, detection when the position-detection sensor that is arranged on the lift car side detects the detected body that is arranged on the hoist trunk side regularly such as because detected body when installing bad operation or to have produced skew etc. former thereby when the large time difference having occurred because earthquake etc. occurs the installation site of detected body, may cause because error stopped by excessive floor elevator passenger when elevator up and down, to be tripped.
Usually, under the maintenance running state take inspection as purpose, the maintainer makes elevator carry out the operation of every layer of stop, judges unusual position with this by Visual Confirmation.Therefore, maintenance activity need to spend long time.
In addition, as prior art, for example known have by patent documentation 1 disclosed scheme, when action has been carried out near the zone of a plurality of car detector switches (limit switch) being arranged on terminal floor beyond in the regular event interval, is judged as switch and occurred unusually.
Patent documentation
Patent documentation 1: the open patent 2008-7322 of Japan communique
Patent documentation 1 disclosed formerly technology is that can only be applied to be configured in can be to the abnormality judgment method of the locational car detector switch set between normal active region, and whether it can't judge the car detector switch that is arranged on a plurality of positions in the hoist trunk and occur unusually.
In addition, the field of application that enlarges the method in hope not only can cause the system architecture complicated, but also can increase the required labour of maintenance activity with to unusually the judging of a plurality of car detector switches the time.
Summary of the invention
The object of the present invention is to provide a kind of controller for elevator, this controller for elevator does not need to set up special device and just can understand at a glance floor and stop precision unusual position has occured for example when elevator is carried out upkeep operation.
Therefore, the object of the present invention is to provide a kind of abnormal detector of elevator, it can shorten the time of the upkeep operation when recovering, and can shorten the time that elevator does not move in the situation that the disaster such as earthquake has occured.
One aspect of the present invention provides a kind of controller for elevator, it has position-detection sensor and detected body, described position-detection sensor carries on lift car, each dock floors in described detected body and the hoist trunk etc. are configuration accordingly, and detected by described position-detection sensor, described controller for elevator detects the position of described lift car according to the output signal of described position-detection sensor, it is characterized in that, described position-detection sensor is with can be by carrying on described lift car with the mode of the opposed position of described detected body, and have at least 4 sensor units that are arranged side by side, described detected body is configured on the interior a plurality of positions of hoist trunk, have separately a plurality of detected unit, at least 2 sensor units that described a plurality of detected unit is arranged in 4 described sensor units of lift car below abreast detect simultaneously, and described controller for elevator detects unusually according to the output time difference regularly of 2 described sensor units in the described position-detection sensor at least.
In embodiments of the present invention, preferably detecting according to the output of the described sensor unit time difference regularly when unusual, if elevator door is in open mode, then notifying by broadcasting has difference of height between the floor.In addition, in the time will closing elevator door, buzzer phone is sounded a buzzer.
In addition, in preferred implementation of the present invention, stop error according to the poor floor that detects elevator of the output very first time regularly of position-detection sensor, and out of service according to the second time official post elevator poor larger than the output very first time regularly of position-detection sensor.
The invention effect
According to preferred implementation of the present invention, can go out the floor of the elevator lobby that can cause each layer and the error between the lift car side floor with desirable accuracy detection is that floor is stopped unusual that error occurs that unusual car position detects.
In addition, according to preferred implementation of the present invention, except the professional, also can perceive easily elevator floor such as owner's grade in building and stop the unusual of precision.
Therefore, when the disasters such as earthquake have occured, not only can shorten the required time of upkeep operation, and can shorten significantly the not time of run of elevator.
Other purposes of the present invention and characteristics are illustrated in following embodiment.
Description of drawings
Fig. 1 is the integral structure figure that expression has the lift facility of the related controller for elevator of one embodiment of the invention.
Fig. 2 is that expression consists of being installed in the position-detection sensor on the lift car and being arranged on the block diagram of detected body of the door section of elevator lobby of the related controller for elevator of one embodiment of the invention.
Fig. 3 is the exemplary plot of integrated mode of the position-detection sensor output of the detected unit of detected body of related each floor of expression one embodiment of the invention and car below.
Fig. 4 be the related safety of expression one embodiment of the invention with the general configuration of controller and and position-detection sensor between the figure of method of attachment.
Fig. 5 is the exemplary plot for the elevator running orbit of the action of explanation one embodiment of the invention.
Fig. 6 is the exemplary plot for the integrated mode variation of the position-detection sensor output of the action of explanation one embodiment of the invention.
Fig. 7 is the processing flow chart that the safety in the related controller for elevator of one embodiment of the invention is used controller.
The processing flow chart of the details of the specific treatment step of Fig. 8 is illustration Fig. 7.
Nomenclature
1 ... lift car, 2 ... electrical motor, 3 ... the winch drg, 5 ... inverter, 6 ... cut off circuit, 7 ... source of AC, 10 ... main hoist cable, 11 ... counterbalanced weight, 12 ... speed controller rope, 13 ... governor, 14 ... grip device, 15 ... emergency braking device, 16 ... guide rail, 17 ... energy disperser, 21 ... rotary encoder, 22,23 ... limit switch, 30 ... the control controller, 40 ... the safety controller, 50 ... elevator control gear, 61~63 ... the elevator lobby button, 70 ... the car door switch, 71~73 ... the entrance hall door switch that does not have the floor of car stop, 80 ... position-detection sensor (opto-electronic pickup), 80A~80D ... sensor unit, 80a~80d ... the light beam of each photoelectric transducer element, 81~83 ... the detected body (baffle) of hoist trunk side, 81a~81d, 82a, 82d, 83a~83d ... detected unit (shield)
The specific embodiment
Referring to Fig. 1 to Fig. 8 embodiments of the present invention are described.
Fig. 1 is the integral structure figure that expression has the lift facility of the related controller for elevator of one embodiment of the invention.Figure 1 illustrates to have the existing safety system that is made of mechanical component is carried out electronic component and software implementation and the integral structure figure of the electronic security(ELSEC) reply type elevator of the safety system that obtains
Lift car 1 drives the main hoist cable 10 that is connected with counterbalanced weight 11 and carry out lifting moving in hoist trunk by electrical motor 2.Electrical motor 2 is by inverter 5 drivings that are connected with source of AC 7 by cutting off circuit 6.During the movement of lift car, under detecting car door switch 70 or not having situation that the hoistway door switch 71~73 of the floor that lift car stops is activated etc., in order to ensure safety, make and cut off circuit 6 startups, disconnect thus the electric power supply to electrical motor 2.After electric power supply disconnected, the propulsive effort of electrical motor 2 disappeared, and winch drg 3 starts.Winch drg 3 is at ordinary times actuated type drgs that braking is disengaged when energising.
Speed controller rope 12 moves and is pulled along with lift car 1, thereby makes governor 13 rotations.Governor 13 has grip device 14 and rotary encoder 21, after grip device 14 starts speed controller rope 12 is gripped.At this moment, if lift car 1 is mobile, then emergency braking apparatus 15 makes the lift car emergent stopping by clamping guide rail 16.Rotary encoder 21 rotates with governor 13 and produces impulse singla.Accumulate to obtain the position of lift car 1 by the variable quantity of pulse signals, and carry out the speed that lift car 1 is obtained in computing by the time average to variable quantity, in order in control, use.
Be equipped with position-detection sensor 80 on the lift car 1.When lift car 1 arrives destination floor, the output of position-detection sensor 80 along with the destination floor that is arranged on the hoist trunk side on detected body 81~83 opposed and change, and the safety in elevator control gear 50 sends the signal corresponding with stop position (but elevator door opened areas) with controllers 40.
Be provided with energy disperser 17 in the lower end of hoist trunk, when the braking force that relies on winch drg 3 and emergency braking apparatus 15 still can not make lift car 1 stop fully, energy disperser 17 bore lift car 1 in the mode of impact-absorbing.
Be provided with limit switch 22,33 near the lower end of hoist trunk and near the upper end.These limit switches 22,33 are in disconnection (OFF) state at ordinary times, and lift car 1 enter into limit switch 22 below or limit switch 33 above the time, limit switch 22 or limit switch 33 become respectively connection (ON) state, and detection has exceeded common range of operation for the position of lift car 1 thus.
The inside that is positioned near the electronic security(ELSEC) reply type elevator control gear 50 of hoist trunk is provided with control with controller 30 and uses safely controller 40.Control is used for control inverter 5 with controller 30, according to the destination floor button in the operation board in the car that is provided with the car position telltale 60 and the input message of elevator lobby button 61~63 etc. lift car 1 is moved.On the other hand, safety with controller 40 with rotary encoder 21 and limit switch 22,33 output as input, detect and the hypervelocity of the corresponding lift car of assigned position or the phenomenon such as offside, brake by winch drg 3,15 pairs of lift cars 1 of emergency braking apparatus of cutting off circuit 6 and utilizing grip device 14 to brake.
Fig. 2 is that expression consists of the position-detection sensor of lift-launch on lift car of the related controller for elevator of one embodiment of the invention and the block diagram of the detected body of the door section that is arranged on elevator lobby.
Fig. 2 (A) is block diagram and the birds-eye view that carries the position-detection sensor 80 on lift car 1.Position-detection sensor 80 has adopted the structure with 4 sensor unit 80A~80D and row arrangement for the detected body 81~83 of explanation after detecting.In the present embodiment, use opto-electronic pickup as sensor unit, the opto-electronic pickup of 4 single shafts is arranged side by side below lift car.80a~80d represents respectively the light beam of each photoelectric transducer element, and the detected unit of the detected body that these light beams illustrate afterwards is blocked when entering these opto-electronic pickups.
Fig. 2 (B)~(D) is the block diagram that represents to be configured in respectively the detected body 81~83 in the door section of elevator lobby of each floor.81e~83e represents the door of elevator lobby, and the detected body 81~83 that is made of plastics etc. is installed at door.
Concrete structure example as the position-detection sensor 80 below the car shown in Fig. 2 (A) shows 4 sensor unit 80A~80D.The safety that the output of each sensor unit 80A~80D is imported in the elevator control gear 50 is used in the controller 40.Safety has the microcomputer that carries out logic operation with controller 40, detects the stop position (but elevator door opened areas) of each floor etc. by the computing of microcomputer.
On the other hand, by the detected body 81~83 of position-detection sensor 80 detected hoist trunk sides respectively by 4 detected unit (for example shield) 81a~81d, 82a~82d, 83a~83d consists of.The position of 4 detected unit configures accordingly with the position of 4 sensor units of the position-detection sensor 80 of car below respectively, and when having detected unit, the light beam that divides from the luminous componen directive light accepting part of sensor unit is blocked.But the length of the above-below direction of detected body 81~83 is consistent with the elevator door opened areas of the opened and closed elevator door of the elevator lobby of each floor.
Fig. 3 is the exemplary plot of integrated mode of output of the position-detection sensor of the detected unit of detected body of each related floor of one embodiment of the invention and car below.The occasion that has 4 sensor units in the position-detection sensor 80 of Fig. 2 is as example, but shows the structure example for the detected unit in the detected body 81~83 that elevator door opened areas, top terminal floor and the below terminal floor of each floor of 1 layer to 5 layers are identified.
In the detected body 81 on the door 81e that is installed in 1 layer of elevator lobby shown in Fig. 2 (B), when lift car 1 rests on 1 layer the normal stop position, its detected unit 81c and 81d cover respectively the light beam of sensor unit 80C and 80D, the output of position-detection sensor 80 is shown in the right side of Fig. 3, be " 0; 0,1,1 ".
In addition, in the present embodiment, the detected body 81 that is installed on the door 81e of 1 layer of elevator lobby has the function that the below terminal floor is identified concurrently.That is to say, but when lift car 1 dropped to the lower end of elevator door opened areas of 1 layer of elevator lobby, the light beam of sensor unit 80A~80D was covered by detected unit 81a~81d respectively, be identified as lift car this moment and approached the below terminal floor.Therefore, the output mode of position-detection sensor 80 is " 1,1,1,1 " shown in the right side of Fig. 3.In addition, whether to have approached the below terminal floor in order identifying, as condition for identification, to have increased this pattern " 1,1,1,1 " and be and be positioned at 1 layer pattern " 0,0,1,1 " from expression and change this condition for identification of coming.
In the detected body 82 on the door 82e that is installed in 3 layers of elevator lobby shown in Fig. 2 (C), but when lift car 1 was positioned at 3 layers elevator door opened areas, its detected unit 82a and 82d covered respectively the light beam of sensor unit 80A and 80D.Therefore, the output mode of position-detection sensor 80 is " 1,0,0,1 " shown in the right side of Fig. 3.
In the detected body 83 on the door 83e that is installed in 5 layers of elevator lobby shown in Fig. 2 (D), when lift car 1 was positioned at 5 layers normal stop position, its detected unit 83a and 83b covered respectively the light beam of sensor unit 80A and 80B.Therefore, the output mode of position-detection sensor 80 is " 1,1,0,0 " shown in the right side of Fig. 3.
In addition, in the present embodiment, the detected body 83 that is installed on the door 83e of 5 layers of elevator lobby has the function that the top terminal floor is identified concurrently.That is to say, but when lift car 1 rose to the upper end of elevator door opened areas of 5 layers of elevator lobby, the light beam of sensor unit 80A~80D was covered by detected unit 83a~83d respectively, be identified as lift car this moment and approached the top terminal floor.In addition, whether to have approached the top terminal floor in order identifying, as condition for identification, to have increased this pattern " 1; 1,1,1 " and be and be positioned at 5 layers pattern " 1,1; 0,0 " from expression and change this condition for identification of coming, distinguished with the occasion of this and above-mentioned below terminal floor.
In addition, can know from Fig. 3, but when lift car is positioned at 2 layers elevator door opened areas, the light beam of sensor unit 80B and 80D is covered by the detected unit that the b of beacon sign not row and d are listed as, and the output mode of position-detection sensor 80 is " 0,1; 0,1 ".Equally, but when lift car was positioned at 4 layers elevator door opened areas, the light beam of sensor unit 80A and 80C was covered by the detected unit that a of beacon sign not row and c are listed as, and the output mode of position-detection sensor 80 is " 1,0,1,0 ".
So, the detected body corresponding with position-detection sensor 80 be configured to each floor namely ad-hoc location export specific integrated mode.Therefore, by identifying specific integrated mode by safety with controller 40, can identify each floor.
In addition, design by the shape to detected body, for example can also have as described above the function that whether has exceeded the limit switch of terminal floor for detection of lift car.
Can know clearly if the detected unit of the detected body 81~83 in one embodiment of the invention is configured to be in normal condition, then necessarily have 2 detected unit to be detected by 2 (a plurality of) sensor units simultaneously from Fig. 2 and Fig. 3.The purpose that arranges like this is to use the abnormality detection of controller in order to carry out safety described later.
Fig. 4 be the related safety of expression one embodiment of the invention with the general configuration of controller and and position-detection sensor between the figure of method of attachment.Safety is made of microcomputer with controller 40, and the output of position-detection sensor 80 is imported into respectively in each microcomputer.In addition, by 2 microcomputers are compared mutually, can be configured for detecting the unusual mutual diagnosis system of software error and hard error.
But whether safety represents the fault detection result of elevator door opened areas, sensor and arrives the signal of testing result of ad-hoc location except exporting with controller 30 to control with controller 40, also transmission is used for carrying out the cut-out of power supply and the output of drg enabled instruction when self making elevator out of service by safety with controller 40, and transmission is used for having carried out the output signal that disconnection control is notified with these matters such as disconnection process of the power supply of controller 30.
Fig. 5 is the exemplary plot for the elevator running orbit of the action of explanation one embodiment of the invention.Running orbit for example be 1 elevator time period arbitrarily from 2 layers, 3 layers stop temporarily after, the running orbit when further setting out to 4 layers.Below take this running orbit as example, and with reference to Fig. 6 the related abnormality detection action of one embodiment of the invention is described.
Fig. 6 is the exemplary plot for the integrated mode variation of the expression of the action of the explanation one embodiment of the invention position-detection sensor output corresponding with the example of Fig. 5.
Illustrate after lift car is through 2 layers referring to Fig. 3 and Fig. 5, stop at 3 layers temporarily, and further in the situation of 4 layers of rising, for example consider the variation of the output mode when with per 10 milliseconds of frequencies of 1 time the output mode of position-detection sensor being monitored.Under normal circumstances, the variation of the output mode of position-detection sensor is shown in the example 1 of Fig. 6.That is to say, when not detecting detected body, the output mode of position-detection sensor is " 0,0,0; 0 " when arrival had the position at detected body place, 2 detected unit were detected simultaneously, and, when having left the position at detected body place, 2 detected unit can't detect simultaneously.
The following variation of output mode shown in the example 1 of Fig. 6: when arriving 3 layers (but be in the openable elevator door opened areas of elevator door state), output mode is sensor output mode (1 shown in Figure 3,0,0,1), because there is not installation error in tested lateral body, so the output mode of sensor is along the running orbit variation of Fig. 5.Shown in the example 1 of Fig. 6, be about to arrive 3 layers to elevator before, the output mode of sensor is the pattern (0,0 that is positioned at the forefront of example 1,0,0), after elevator just arrived 3 layers, the output mode of sensor became and is positioned at the 2nd pattern (1,0,0,1).After this, because elevator continues to travel to 4 layers, so until elevator is about to leave till 3 layers, the output mode of sensor keeps (1,0,0,1) this pattern is until till the 4th pattern reciprocal, after elevator has just left 3 layers, the output mode of sensor becomes (0,0,0,0) (the 3rd later output mode reciprocal).
Below example example 2 and example 3 when having installation error describe.For example, in example 2, original 2 sensor units must perceive detected body simultaneously, but because inclination or deviation have appearred in the installing condition of detected unit, so there is small error in 2 sensor units in detection time.
Shown in the example 2 of Fig. 6, elevator arrived 3 layers time as this interval between diagnosis, output mode (0 in upper last time of the forefront that is positioned at example 2,0,0,0) afterwards, occurred take the past number of symbol (a) expression original output mode (0 that should not occur as second, 0,0,1).After this, output mode becomes in the past several the 3rd normal output mode (1,0,0,1).Then, elevator for towards above travel and when leaving 3 layers, the output mode (1,0,0,0) with symbol (b) expression that originally should not occur also occurred.
Example 3 expression installing conditions are on duty mutually, and namely the ground difference of height during dock floor is large and be in the state that may cause the passenger to be tripped.Under this state, in upper last time when arriving 3 layers, last time and the current sensor output mode, what represented by symbol c is that the second and the 3rd output mode is (0 from the number of front, 0,0,1), after this in the past several be that the 4th output mode becomes normal output mode (1,0,0,1).Then, elevator for towards above travel and when leaving 3 layers, detect too 2 times with the unusual output mode (1,0,0,0) of symbol (d) expression.
According to the above-mentioned unusual output mode (a)~(d) that is detected by position-detection sensor 80, error has appearred in the setting position that can know detected unit, has occurred perhaps comprising that the car position of the fault of position-detection sensor 80 self detects unusual.But, when the only slight error in an interval between diagnosis (for example 10 milliseconds) scope that has occurred shown in the example 2, this error is stopped error as the floor of negligible lift car.At this moment, if can detect shown in the example 3 abnormal patterns (c) appears in 2 interval between diagnosis (for example 20 milliseconds) continuously and (d) such error is just enough.Followingly describe according to the embodiment of this imagination to abnormality detection.
Fig. 7 is the processing flow chart that the safety in the related controller for elevator of one embodiment of the invention is used controller.Wherein, as shown in Figures 2 and 3, the sensor unit of position-detection sensor 80 has 4, and the detected unit of detected body 81~83 has 2 or 4.Use in the treatment scheme of controller 30 in the safety of the Fig. 1 shown in Fig. 7, expression during as previously mentioned, with elevator lifting does not cause the passenger to trip dangerous floor stopping first of precision and allow and be set as opening time at a proof cycle with interior (for example 10 milliseconds).
At first, enter step 702 after in step 701, the current output of position-detection sensor being stored in the temporary storage area, whether judge has at least more than one sensor unit to detect detected body in 4 sensor units, in the situation that even there is a sensor unit to detect detected body, enter into step 703.On the other hand, when not detecting detected body, transfer to step 710~712, judge the state of position-detection sensor, and the preparation of next time processing processing, after this end process.
In step 703, judge whether the storing value in the temporary storage area is consistent with specific integrated mode, being judged as when consistent, enter step 713 and 723, but check whether be positioned at the openable elevator door opened areas of elevator door, after this enter step 704 or 705.In step 703, be judged as when inconsistent, enter step 707, detected detected body at position-detection sensor at least more than one sensor unit in the detection of last time and last time, and in the storing value of the last time in the storage area of position-detection sensor and the specific inconsistent situation of integrated mode, be judged as and unusually continued 2 interval between diagnosis (for example 20 milliseconds).Because the floor that may existence can cause the passenger to be tripped is stopped error, occured to comprise that the position-detection sensor of detected body installation error is unusual so in step 708, be judged as, make and cut off circuit 6 actions, and make lift car stop to guarantee safety, after this enter step 710.
In step 704, judge the state of the position-detection sensor of last time, not detecting when unusual, enter step 705, be judged as position-detection sensor normal.Shown in the example 1 of this step presentation graphs 6 without error in mounting position the time the state of sensor.
In step 704, detect when unusual, enter step 706, the position-detection sensor in last time does not detect in the unusual situation, that is to say unusually allowing in opening time in first of the example 2 of Fig. 6 of detecting, be judged as normally, enter step 710~712 from step 709.
When the position-detection sensor that is judged as upper last time in step 706 has detected unusually, then owing to having detected error at continuous 2 interval between diagnosis, so the floor that might generation can cause the passenger to be tripped is stopped error.Therefore, the same with step 707, enter step 708, make and cut off circuit 6 startups, and make lift car stop to guarantee safety, after this enter step 710~712.
In step 710, the State-output of position-detection sensor is used in the controller to control, and carried out the notice at unusual position by control with controller.For example, when the maintainer has operated service switch in order to begin the maintenance operation, detect the startup of this service switch, and make the interior destination floor button flicker corresponding with detect unusual elevator lobby by position detecting device of lift car etc., thus unusual this situation of floor stop has been occured in this elevator lobby and notified.
Above-mentioned a series of processing is diagnosed thus by safety periodically starting with the time meter of the CPU in the controller.Therefore, a plurality ofly allow opening time even set, also can be controlled at minimum limit with processing load, and can make things convenient for and detect as soon as possible floor stop error.For example, in the occasion of starting the processing of Fig. 7 with 10 milliseconds cycle, the output of the position-detection sensor of last time represents the output mode before 10 milliseconds, and the output of the position-detection sensor of last time represents the output mode before 20 milliseconds.Whether this error is processed, need to be judged according to the running velocity of elevator, but in the situation that general, 1 interior error of interval between diagnosis is stopped error as floor and mostly can be ignored.
Fig. 8 is the processing flow chart of details that has represented for example the treatment step 708 of Fig. 7.
At first, the position-detection sensor that judges whether to have detected the error in mounting position that comprises detected body in step 801 is unusual, is not detecting end process when unusual.Detecting when unusual, in step 802 to step 804, after processing according to the open mode of elevator door, in step 805, close elevator door after, automatically stop after making elevator move to normal floor.
In step 806, as the preliminary preparation of step 807~813, elevator door is opened, and after elevator door is opened in order to guide elevator under the passenger in the lift car, close the illumination in the car, and make elevator door open the button bright light.
Step 807 to step 811 is to allow be closed in passenger's elevator under normal floor in the lift car, and makes elevator processing out of service after closing elevator door.Wherein, if the elevator door in step 810 in the lift car is opened button and is not pressed, then in step 812, continue to make elevator out of service, in step 813, continue to make elevator out of service until detect maintainer's etc. maintenance activity, and be closed in the lift car for fear of the passenger, turn back to step 810.
As mentioned above, according to embodiments of the invention, can go out the floor of the elevator lobby that can cause each layer and the error between the lift car side floor with desirable accuracy detection is that floor is stopped error and the unusual of unusual device for detection of position of car body occurred.
Detecting the device for detection of position of car body that can cause floor to stop the error abnormal when unusual, by the broadcast announcement elevator passenger difference of height is arranged, the danger that can prevent that the passenger from being tripped thus etc. is in possible trouble.
And, detecting the device for detection of position of car body that can cause floor to stop the error abnormal when unusual, automatically make elevator out of service, and so that elevator can bring into operation after the maintainer overhauls again, can make thus elevator realize safe operation.
Especially according to the preferred embodiment of the invention described above, detecting when unusual, do not need to be provided for the respectively read out instrument of the special use at this unusual position, and can notify by broadcasting and buzzer phone etc., so except the professional, also can understand at a glance easily floor stop precision such as owner's grade in building unusual floor has occured.
In addition, also have in the situation that the disasters such as earthquake have occured, can shorten the time of upkeep operation, and can significantly shorten the effect of the time that elevator do not move.

Claims (8)

1. controller for elevator, have the position-detection sensor that carries on lift car and with hoist trunk in the accordingly configuration such as each dock floor and the detected body of being surveyed by described position-detection sensor, described controller for elevator detects the position of described lift car according to the output signal of described position-detection sensor, it is characterized in that
Described position-detection sensor is with can be by carrying on described lift car with the mode of the opposed position of described detected body, and has at least 4 sensor units that are arranged side by side,
Described detected body is configured on a plurality of positions in the hoist trunk, has separately a plurality of detected unit, and at least 2 sensor units that described a plurality of detected unit are arranged in 4 described sensor units of lift car below abreast detect simultaneously,
Described controller for elevator detects unusually according to the output time difference regularly of 2 described sensor units in the sensor unit in the described position-detection sensor at least.
2. controller for elevator according to claim 1 is characterized in that,
Detecting according to the output of at least 2 described sensor units in the sensor unit in the described position-detection sensor time difference regularly when unusual, if elevator door is in open mode, then notifying by broadcasting has difference of height between the floor.
3. controller for elevator according to claim 1 and 2 is characterized in that,
After the output time difference regularly according to described sensor unit detects unusually, in the time will closing elevator door, buzzer phone is sounded a buzzer.
4. each described controller for elevator in 3 according to claim 1 is characterized in that,
Stop error according to the poor floor that detects elevator of the output very first time regularly of a plurality of described sensor units, and out of service according to the second time official post elevator poor larger than the output above-mentioned very first time regularly of a plurality of described sensor units.
5. each described controller for elevator in 4 according to claim 1 is characterized in that,
Utilize time meter to interrupt periodically monitoring the output time difference regularly of a plurality of described sensor units in the described position-detection sensor, detect thus unusual.
6. controller for elevator according to claim 5 is characterized in that,
When the very first time that detects the output timing between a plurality of described sensor units in the monitoring period of the first regulation is poor, detect and be floor stop error, when in the monitoring period of second regulation longer than the monitoring period of described the first regulation, detecting than poor larger the second time difference above-mentioned very first time regularly of the output between the described sensor unit, detect as unusually making elevator out of service.
7. each described controller for elevator in 6 according to claim 1 is characterized in that,
Detecting according to the output of at least 2 described sensor units in the described position-detection sensor time difference regularly when unusual, make elevator towards the operation of other floors, and be not detected as unusual floor and make elevator out of service because of output time difference regularly of the sensor unit in the described position-detection sensor.
8. each described controller for elevator in 7 according to claim 1 is characterized in that,
Detect unusually in the output time difference regularly according to a plurality of sensor units in the described position-detection sensor, and the switch that detects regulation has been carried out in the situation of operation, notifies by the destination floor button corresponding with detecting unusual floor in the lift car to be detected unusual floor.
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