CN103538982A - Elevator monitoring device - Google Patents
Elevator monitoring device Download PDFInfo
- Publication number
- CN103538982A CN103538982A CN201310532652.5A CN201310532652A CN103538982A CN 103538982 A CN103538982 A CN 103538982A CN 201310532652 A CN201310532652 A CN 201310532652A CN 103538982 A CN103538982 A CN 103538982A
- Authority
- CN
- China
- Prior art keywords
- elevator
- speed
- signal
- car
- coder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Provided is an elevator monitoring device. A display device in an elevator operating-speed car acquires an actual operating-speed signal of an elevator through an encoder installed at the end of a main machine shaft and transfers the signal to a control main board through a PG card, elevator control program performs analysis and processing on the acquired operating-speed signal, and the signal is transmitted to a display panel in the car through CAN communication. Compared with the prior art, the elevator monitoring device has the advantages that the display device in the elevator operating-speed car can clearly display the current operating speed of the elevator, enable passengers to know the operating speed of the taken elevator and enrich displayed frames in the car. The monitoring reliability of an elevator operation state is ensured through multiple monitoring modes, an elevator monitoring system is simple by adopting an optical detection module, and the influence of redundant wire arrangement and elevator shake on the monitoring system is avoided.
Description
Technical field
The present invention relates to elevator field, specifically refer to the monitoring device of a kind of elevator speed position.
Background technology
Existing elevator does not have running velocity in sedan-chair to show, only when mainboard attended operation device, just can check elevator speed, so passenger cannot understand the real-world operation speed of taken elevator, especially express elevator problem is more outstanding.This problem can be by realizing encoder feedback data transmission to the telltale in car, its critical component is coder, and the signal that elevator safety is controlled also comes from coder, as: the reason that produces elevator stall fault has following two kinds of situations: 1. elevator moves, be speed V > 0m/s, if the speed V=0 that returns by encoder feedback now detected, and this situation maintains 5s clock, occur stall fault, elevator emergency stops.If do not revised after repeating 4 times, master controller is out of service.2. elevator has been established the direction of current operation, but elevator is operation not, if half that the impulse speed feeding back by rotary encoder is less than rated speed of lift at this moment detected, and this state maintains 0.15s clock, elevator does not rerun, and elevator is disannuled a call simultaneously.Elevator slips according to current established direction, if it is inconsistent to record direction and current direction that encoded device feeds back, and speed V > 0.35m/s, this kind of state maintains 0.8s, and elevator emergency stops.Elevator overspeed elevator, in the middle of normal course of operation, is greater than 1.15 times of rated speed of lift if speed that encoder feedback returns detected, and this state can only maintain 0.8s, and elevator emergency stops.If do not revised after repeating 4 times, master controller does not rerun.Need artificially the maintenance/normal switch on control housing first to be pushed to T maintenance T, then be restored to the normal T of T; Or first power-off re-powers reset again.Proportionality coefficient while attempting by increasing converter low-frequency; Or the coefficient that strengthens T delay contracting 1T solves; Or add load compensation and solve.Dislocation (surpassing 45CM), bump against and revise and write under layer state non-during short speed reducing switch lower end, in the middle of the downward operational process of elevator, these data of recording when being fed back the position (descending individual layer speed reducing switch is by being failure to actuate → moving) of car and being write layer by rotary encoder are compared, when the absolute value of its difference is greater than 45CM, in the moment of descending individual layer speed reducing switch action, during to original write layer, the data of the descending individual layer speed reducing switch of record are revised.Visible code device signal moves to elevator the vital effect of having played, because coder is arranged on main motor conventionally, by monitoring motor or with the power wheel of motor linkage on, its inefficacy will cause the confusion of elevator operation, and its error in data also likely causes the generation of elevator safety accident, therefore increase the monitoring mode of elevator operation very necessary, at present, institute's employing means are mainly the modes such as approach switch sensor that install additional, and it has increased elevator pipeline, complicated layout.
Summary of the invention
First the present invention will provide the speed display device in a kind of lift car,
And then provide a kind of both sides' formula acquisition of signal, can prevent that coder is malfunctioning, can accurately show the device of elevator speed, can be in elevator the current running velocity of the clear demonstration car in railway carriage or compartment, make passenger understand the running velocity of taken elevator, enrich display frame in sedan-chair.
A nearlyer step a kind of both sides' formula acquisition of signal, the safety device of abnormal elevator condition monitoring be provided.
The present invention adopts following technical scheme: a kind of escalator monitoring device, in elevator speed sedan-chair, read out instrument is to gather elevator real-world operation speed signal by being arranged on main frame axle head coder, by PG card, be sent to control mainboard, elevator control program is according to gathering running speed signal analyzing and processing, then is sent to display panel in sedan-chair by CAN communication.
This elevator comprises that driving circuit drives main motor movement, on the output shaft of main motor, connect the fifth wheel with coder, coder is transferred to the electric machine rotation signal monitoring by fifth wheel on PG card, PG card outputs on elevator control panel after the signal of the coder of different output forms is processed, the signal that elevator control panel was processed in connection with time parameter is converted into speed parameter v1, by CAN bus, be transferred on sedan-chair top board, sedan-chair top board passes through data bus connection, this speed data is real-time transmitted to, is arranged on the telltale of cab interior.
Further, this device is also provided with optical detection module, it is arranged on lift car outside, can obtain car displacement parameter, optical detection module is real-time transmitted to this displacement parameter s on the micro controller system of controlling it, by the time parameter t of micro controller system self crystal oscillator, calculate the real-time speed v2 of this elevator, by speed parameter v2, transfer to elevator control panel, elevator control panel compares itself and the speed v 1 that self calculates by code device signal, if difference is at tolerance interval, data are effective, checking coder is effectively worked, and elevator is working properly.
The car moving in hoistway is by wirerope 2 tractions, and wirerope 2 is driven by the electrical motor 1 with drive pulley.One side of hoistway is equipped with indicia band 4, and optical detection module 3 is housed on car.Indicia band 4 use reflex-reflective material are made.Indicia band is arranged on hoistway specific position, as with car when every layer of exit position, car glazing detecting module correspondence position, each indicia band width is different.When optical detection module is passed through indicia band, because its principle is to accept diffuse light to realize detection, during its reflex-reflective material through mirror-reflection, there will be without diffusing signal, the situation of signal deletion, now lacks by calculating the distance occurring, can judge lift car present position.
Optical detection module is by illuminating lamp 7, lens 12, pectination photoelectric device 10, aperture dividing plate 11, the parts such as amplifier 9 and outer casing stand 6 form one, light beam is launched by illuminating lamp, impinge upon on object 8, its reflected light scioptics 12 enter in detecting head, and after aperture dividing plate, imaging is to dressing photoelectric device, form signal after amplifier 9 is processed, transfer on micro controller system.Wherein detecting head is vertical with object 8 surfaces, and illuminating lamp and detecting head are acute angle, especially take 45 degree as good.
A plurality of photosensitive of being comprised of silicon photodiode array detector of pectination photoelectric device 10, connects into two groups, is symmetrical alternate pectination and arranges.
Compared to the prior art, tool of the present invention has the following advantages: read out instrument in elevator speed sedan-chair, can the current running velocity of clear demonstration car, and make passenger understand the running velocity of taken elevator, enrich display frame in sedan-chair.Multiple monitoring mode has been guaranteed the monitoring reliability to elevator operation, and the setting of optical detection module makes Elevator Monitoring system more simple, has removed redundancy wiring and elevator from and has rocked the impact on monitoring system.
Accompanying drawing explanation
Fig. 1 is that elevator of the present invention is arranged schematic diagram;
Fig. 2 is control circuit figure of the present invention;
Fig. 3 is optical detection modular construction schematic diagram of the present invention;
The specific embodiment
In elevator speed sedan-chair, read out instrument is to gather elevator real-world operation speed signal by being arranged on main frame axle head coder, by PG card, be sent to control mainboard, elevator control program is according to gathering running speed signal analyzing and processing, then is sent to display panel in sedan-chair by CAN communication.
Coder that the present invention adopts is absolute rotary-type magnetic coder, and it has utilized hall principle to come detection axis position, and it is attached on the axle of apparatus and a twin shaft Hall effect transducer being arranged in encoder housing against a permanent magnet.When axle and magnet rotation, Hall effect transducer is measured the variation in magnetic field and is provided angle measurement to control system.
Coder is a kind of digital transducer, in the kinematic scheme that can be used in elevator needing speed to carry out accurately controlling.Compare with optical encoder, magnetic encoder is not subject to the impact of environmental pollution, humidity and ray, and reliability is high, simple and compact for structure, and volume is little, and cost is low, fast response time.
By coder, measure the rotation of motor, make coder export continuous impulse singla to PG card, realize Digit Velocity.PG card, outputs on elevator control panel after the signal of the coder of different output forms can being processed, and can realize motor speed and control and position control (location).
Coder reflects the real-world operation speed of elevator by fifth wheel, elevator speed is faster, and operated motor rotating speed is higher.When elevator moves with command speed, operated motor normal operation; When elevator speed surpasses command speed and constantly accelerates to reach operated motor overspeed switch responsiveness, overspeed switch produces electrical action, cutting-off controlling circuit stop elevator; If stop is invalid and elevator continues to accelerate row, reach 120% when above of its command speed, by mechanical action, its rope sheave is shut down, and has lifted by the friction force in rope sheave or rope grip mechanism the connecting rod mechanism being arranged on car beam, thus make lift car by force stop on guide rail.Only, after all safety switchs reset, elevator just can restart.
This elevator comprises that driving circuit drives main motor movement, on the output shaft of main motor, connect the fifth wheel with coder, coder is transferred to the electric machine rotation signal monitoring by fifth wheel on PG card, PG card outputs on elevator control panel after the signal of the coder of different output forms is processed, the signal that elevator control panel was processed in connection with time parameter is converted into speed parameter v1, by CAN bus, be transferred on sedan-chair top board, sedan-chair top board passes through data bus connection, this speed data is real-time transmitted to, is arranged on the telltale of cab interior.
Further, this device is also provided with optical detection module, it is arranged on lift car outside, can obtain car displacement parameter, optical detection module is real-time transmitted to this displacement parameter s on the micro controller system of controlling it, by the time parameter t of micro controller system self crystal oscillator, calculate the real-time speed v2 of this elevator, by speed parameter v2, transfer to elevator control panel, elevator control panel compares itself and the speed v 1 that self calculates by code device signal, if difference is at tolerance interval, data are effective, checking coder is effectively worked, and elevator is working properly.
The car moving in hoistway is by wirerope 2 tractions, and wirerope 2 is driven by the electrical motor 1 with drive pulley.One side of hoistway is equipped with indicia band 4, and optical detection module 3 is housed on car.Indicia band 4 use reflex-reflective material are made.Indicia band is arranged on hoistway specific position, as with car when every layer of exit position, car glazing detecting module correspondence position, each indicia band width is different.When optical detection module is passed through indicia band, because its principle is to accept diffuse light to realize detection, during its reflex-reflective material through mirror-reflection, there will be without diffusing signal, the situation of signal deletion, now lacks by calculating the distance occurring, can judge lift car present position.
Optical detection module is by illuminating lamp 7, lens 12, pectination photoelectric device 10, aperture dividing plate 11, the parts such as amplifier 9 and outer casing stand 6 form one, light beam is launched by illuminating lamp, impinge upon on object 8, its reflected light scioptics 12 enter in detecting head, and after aperture dividing plate, imaging is to dressing photoelectric device, form signal after amplifier 9 is processed, transfer on micro controller system.Wherein detecting head is vertical with object 8 surfaces, and illuminating lamp and detecting head are acute angle, especially take 45 degree as good.
Pectination photoelectric device 10 consists of a plurality of photosensitive of n>>1 silicon photodiode array detector, connect into two groups of A, B, is symmetrical alternate pectination and arranges, and establishing the spacing of photosensitive is on the same group T, and x is sense of motion.The image imaging being formed by lens, on this large area pectination device, forms photocurrent Ia, Ib, and circuit subtracts each other both.In general, both are irregular because of image, and the difference of illuminating area is and unequal, and when sensor moves, image is changing, and Ia, Ib are also changing.
When image moves past T/2 on pectination device, except working direction the most front photosensitive receives new images, it is constant that remaining receives image, but the image in photosensitive of A group had moved on in B group originally, and vice versa.Due to n>>1, so the photocurrent producing becomes Ia<Ib, the electric signal that instrumentation amplifier receives is anti-phase.Equally, when image move past T apart from time, on the basis of T/2, except the most front photosensitive the image change of sense of motion, all the other images of photosensitive restore to the original state again, so electric signal is again anti-phase, form the pseudo sine wave of one-period.At this moment due to the image convergent-divergent effect of lens, the T on pectination device is equivalent to the distance MT that ground image moves.That is to say, ground distance MT is transformed into electric signal, has just been equivalent to a pseudo sine wave.Sensor design coefficient is 4mm/ pulse, and 4mm distance in road surface can produce a waveform.Due to photosensitive number n>>1, and image to move be gradual change, so the amplitude of electric signal is also gradual change.Signal conditioning circuit is as long as be processed into TTL square wave this signal, microcomputer system counting square wave number, and in addition time reference just can calculate distance, speed, acceleration/accel easily.
During elevator motion, due to problems such as vibrations and sensor manufacturing process, in actual sensor signal, always contain suitable humorous wave excitation, and the DC component twisting with waveform.Although considered to jolt when sensor is manufactured, adopted special light path design, make the beam center inciding on every photosensitive strictly be parallel to lens primary optical axis, even if object distance changes, the centre distance of the disc of confusion producing on focal plane is constant all the time, but the noise of signal and changes in amplitude are still larger.Sort signal can be used by microcomputer system after must being processed by modulate circuit.
Sensor signal is removed the DC component in signal by 20Hz-20KHz bandpass filter, and by the interference rejection outside band due to image and the reason such as jolt, the changes in amplitude of signal is very large, restrict margin amplifying level is amplified small-signal, large-signal amplitude limit, has prevented dropout.
Claims (5)
1. an escalator monitoring device, it is characterized in that: driving circuit drives main motor movement, on the output shaft of main motor, connect the fifth wheel with coder, coder is transferred to the electric machine rotation signal monitoring by fifth wheel on PG card, PG card outputs on elevator control panel after the signal of the coder of different output forms is processed, the signal that elevator control panel was processed in connection with time parameter is converted into speed parameter v1, by CAN bus, be transferred on sedan-chair top board, sedan-chair top board passes through data bus connection, this speed data is real-time transmitted to, be arranged on the telltale of cab interior.
2. a kind of escalator monitoring device as claimed in claim 1, it is characterized in that: this device is also provided with optical detection module, it is arranged on lift car outside, can obtain car displacement parameter, optical detection module is real-time transmitted to this displacement parameter s on the micro controller system of controlling it, by the time parameter t of micro controller system self crystal oscillator, calculate the real-time speed v2 of this elevator, by speed parameter v2, transfer to elevator control panel, elevator control panel compares itself and the speed v 1 that self calculates by code device signal, if difference is at tolerance interval, data are effective, checking coder is effectively worked, elevator is working properly.
3. a kind of escalator monitoring device as claimed in claim 1 or 2, it is characterized in that: the car moving in hoistway is by wirerope (2) traction, wirerope (2) is driven by the electrical motor with drive pulley (1), one side of hoistway is equipped with indicia band (4), optical detection module (3) is housed on car, indicia band (4) is made of reflex-reflective material, and each indicia band width is different.
4. a kind of escalator monitoring device as claimed in claim 3, it is characterized in that: optical detection module is by illuminating lamp (7), lens (12), pectination photoelectric device (10), aperture dividing plate (11), the parts such as amplifier (9) and outer casing stand (6) form one, light beam is launched by illuminating lamp, impinge upon on object (8), its reflected light scioptics (12) enter in detecting head, after aperture dividing plate, imaging is to dressing photoelectric device, form signal after amplifier (9) is processed, transfer on micro controller system.Wherein detecting head is vertical with object (8) surface, and illuminating lamp and detecting head are acute angle.
5. a kind of escalator monitoring device as claimed in claim 4, is characterized in that: a plurality of photosensitive of being formed by silicon photodiode array detector of pectination photoelectric device (10), connect into two groups, and be symmetrical alternate pectination and arrange.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310532652.5A CN103538982B (en) | 2013-11-01 | 2013-11-01 | A kind of escalator monitoring device |
| PCT/CN2014/079740 WO2015062280A1 (en) | 2013-11-01 | 2014-06-12 | Elevator monitoring device |
| DE202014010508.1U DE202014010508U1 (en) | 2013-11-01 | 2014-06-12 | Elevator monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310532652.5A CN103538982B (en) | 2013-11-01 | 2013-11-01 | A kind of escalator monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538982A true CN103538982A (en) | 2014-01-29 |
| CN103538982B CN103538982B (en) | 2016-02-24 |
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ID=49962912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310532652.5A Active CN103538982B (en) | 2013-11-01 | 2013-11-01 | A kind of escalator monitoring device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103538982B (en) |
| DE (1) | DE202014010508U1 (en) |
| WO (1) | WO2015062280A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062280A1 (en) * | 2013-11-01 | 2015-05-07 | 苏州德奥电梯有限公司 | Elevator monitoring device |
| CN114604707A (en) * | 2022-03-29 | 2022-06-10 | 河南经贸职业学院 | Elevator operation monitoring method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572332A (en) * | 2017-09-15 | 2018-01-12 | 广西建工集团建筑机械制造有限责任公司 | A kind of building hoist state feedback control system |
| CN107986119A (en) * | 2017-12-18 | 2018-05-04 | 广东卓梅尼技术股份有限公司 | A kind of apparatus for controlling elevator for possessing external memory |
| EP3650387A1 (en) * | 2018-11-06 | 2020-05-13 | Otis Elevator Company | System and method for displaying safety related data |
| CN113979260B (en) * | 2021-10-27 | 2023-06-02 | 日立楼宇技术（广州）有限公司 | Elevator overspeed protection method, device, equipment and storage medium |
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| JPH09208143A (en) * | 1996-02-07 | 1997-08-12 | Hitachi Ltd | Operation control method for elevator to be driven by linear motor |
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| KR20040011622A (en) * | 2002-07-27 | 2004-02-11 | 권재현 | An odomater for elevator system |
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| CN103538982B (en) * | 2013-11-01 | 2016-02-24 | 苏州德奥电梯有限公司 | A kind of escalator monitoring device |
-
2013
- 2013-11-01 CN CN201310532652.5A patent/CN103538982B/en active Active
-
2014
- 2014-06-12 WO PCT/CN2014/079740 patent/WO2015062280A1/en active Application Filing
- 2014-06-12 DE DE202014010508.1U patent/DE202014010508U1/en not_active Expired - Lifetime
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| JPH09208143A (en) * | 1996-02-07 | 1997-08-12 | Hitachi Ltd | Operation control method for elevator to be driven by linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062280A1 (en) * | 2013-11-01 | 2015-05-07 | 苏州德奥电梯有限公司 | Elevator monitoring device |
| CN114604707A (en) * | 2022-03-29 | 2022-06-10 | 河南经贸职业学院 | Elevator operation monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202014010508U1 (en) | 2015-11-03 |
| WO2015062280A1 (en) | 2015-05-07 |
| CN103538982B (en) | 2016-02-24 |
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