CN101264843B - Escalator operation safety monitoring method and device - Google Patents
Escalator operation safety monitoring method and device Download PDFInfo
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- CN101264843B CN101264843B CN2008100342728A CN200810034272A CN101264843B CN 101264843 B CN101264843 B CN 101264843B CN 2008100342728 A CN2008100342728 A CN 2008100342728A CN 200810034272 A CN200810034272 A CN 200810034272A CN 101264843 B CN101264843 B CN 101264843B
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- approach switch
- escalator
- switch
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Abstract
The invention relates to a safety monitoring device for the operation of escalator, comprising an escalator controller, a step roller guide rail, and the first inductance near-switch, the second inductance near-switch, the two inductance near-switches are respectively arranged on the lateral side of the line segment of the step roller guide rail, the first inductance near-switch is arranged at the upper end of the line segment of the step roller guide rail, the second inductance near-switch is arranged at the lower end of the line segment of the step roller guide rail, the first inductance near-switch and the second inductance near-switch are respectively connected with the signal port of the escalator controller by the signal lines. The invention has the advantages of detecting the motion situation of the cascade axle of the escalator by adopting the inductance near-switch, and also obtaining the running state of the motor or main rotating parts, completely and effectively monitoring the possible phenomena of over speed, deficiency of speed, retrograde, and cascaded vacancy, during operating, overcoming the monitoring blind spot of the cascaded vacancy and deficiency of speed, effectively improving the safety coefficient of the escalator.
Description
Technical field:
The present invention relates to mechanical field, relate in particular to escalator, particularly a kind of escalator operation safety monitoring method and device.
Background technology:
In the prior art; the monitoring and protecting device of escalator utilizes non-contact type double-sensing element; obtain the hand of rotation of escalator motor or main frame turning unit and two electric impulse signals that interlace of rotating speed; for the microprocessor computing in the staircase controller; contrast preassigned parameter again and judge whether main frame exceeds the speed limit or reverse, and control signal is flowed to braking carry out with power-supply controller of electric and close down protection.But, parts by card cause owe speed, when step lacks, motor or main turning unit also might the rotation, monitoring and protecting device of the prior art can not detect this state, jeopardizes the own safety of the person or equipment.
Summary of the invention:
The purpose of this invention is to provide a kind of escalator operation safety monitoring device, thus the technical matters that the monitoring and protecting device that described this escalator operation safety monitoring device will solve escalator in the prior art can not detect that parts are blocked or the step situation that motor or main turning unit still rotate when lacking jeopardizes the person or device security.
This escalator operation safety monitoring method of the present invention, comprise a process of utilizing movable parts state in the sensor escalator, wherein, in the described process of utilizing sensor movable parts state, utilize one first inductance approach switch to detect the running velocity of a step wheel shaft, utilize one second inductance approach switch to detect the running velocity of another step wheel shaft at synchronization, utilize treater that the feedback signal of described first inductance approach switch and second inductance approach switch and the running velocity normal value of step wheel shaft are compared respectively again, comparative result at first inductance approach switch and second inductance approach switch is under the state of hypervelocity, utilize the signal of described treater to actuating unit or read out instrument output step wheel shaft hypervelocity, comparative result at first inductance approach switch and second inductance approach switch is under the state of owing speed, utilizes described treater to owe the signal of speed to actuating unit or read out instrument output step wheel shaft.
A kind of device of realizing above-mentioned escalator operation safety monitoring method, by the escalator control device, step roller track and two inductance approach switches constitute, be provided with a linear portion in the described step roller track, be provided with angle between the length direction of described linear portion and the horizontal direction, wherein, described two inductance approach switches include one first inductance approach switch and one second inductance approach switch, described first inductance approach switch and second inductance approach switch are fixedly installed on the outside of described step roller track linear portion respectively, first inductance approach switch is arranged on the upper end of step roller track linear portion, second inductance approach switch is arranged on the bottom of step roller track linear portion, and first inductance approach switch is connected by the signal end of signal wire (SW) with described escalator control device respectively with second inductance approach switch.
Further, be provided with phase difference between described first inductance approach switch and the second inductance approach switch installation site, described phase difference equal between two adjacent step wheel shafts of escalator spacing 1/4th.
Further, be provided with microprocessor in the described escalator control device.
Principle of work of the present invention is: the step wheel shaft of escalator moves along step roller track, when the step wheel shaft moves to the zone, dead ahead of first inductance approach switch and second inductance approach switch, first inductance approach switch and second inductance approach switch are sensed metal parts successively, and generation impulse singla, the feedback pulse signal is given the escalator control device, the escalator control device carries out analyzing and processing to the feedback signal of first inductance approach switch and second inductance approach switch, judge the hypervelocity that escalator may occur, owe speed, drive in the wrong direction, step lacks empty phenomenon, thereby makes corresponding response handler.
Concrete, escalator control device, step roller track and inductance approach switch described in the present invention all adopt known technology of the prior art, known solution about escalator control device, step roller track and inductance approach switch, those skilled in the art all understands, and does not repeat them here.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention adopts inductance approach switch to detect the motion conditions of escalator step wheel shaft, also can obtain the running state of motor or main turning unit, the hypervelocity that may occur operating escalator, owe speed, drive in the wrong direction, step lacks empty phenomenon and realizes comprehensive effective monitoring, overcome step and lacked sky and owe the monitoring blind spot of speed, improved the safety factor of escalator effectively.
Description of drawings:
Fig. 1 is the control principle scheme drawing of escalator operation safety monitoring device of the present invention.
Fig. 2 is the inductance approach switch principle of measurement scheme drawing in the escalator operation safety monitoring device of the present invention.
Fig. 3 is the scheme of installation of the inductance approach switch in the escalator operation safety monitoring device of the present invention.
Fig. 4 is the detection signal waveform figure of the inductance approach switch in the escalator operation safety monitoring device of the present invention.
Fig. 5 is the detection signal waveform figure of the present invention's first inductance approach switch and second inductance approach switch when escalator moves downwards.
Fig. 6 is the detection signal waveform figure of the present invention's first inductance approach switch and second inductance approach switch when escalator upwards moves.
The specific embodiment:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, escalator operation safety monitoring device of the present invention is by escalator control device 1, relay, step roller track and two inductance approach switches constitute, described relay is arranged in the control loop of escalator motor, described relay comprises up relay 4, descending relay 5, safety relay 6 and emergency braking relay 7, wherein, described two inductance approach switches are made of first inductance approach switch 2 and second inductance approach switch 3, first inductance approach switch 2 and second inductance approach switch 3 are separately positioned on the outside of step roller track 8, first inductance approach switch 2 is identical with the height of the wire ladder level wheel shaft 10 of escalator 9 with second inductance approach switch 3, first inductance approach switch 2 is arranged on the top of escalator 9, second inductance approach switch 3 is arranged on the bottom with escalator 9, and first inductance approach switch 2 is connected with escalator control device 1 by signal wire (SW) respectively with second inductance approach switch 3.
Further, first inductance approach switch 2 and second inductance approach switch, 3 installation sites are provided with phase difference, described phase difference equal between two adjacent step wheel shafts 10 of escalator 9 spacing 1/4th.
Further, be provided with microprocessor in the described escalator control device 1.
Concrete, after entering the uniform speed motion state, escalator 9 (starts the back after about 8 seconds), step wheel shaft 10 is in the linear portion zone of escalator, make linear uniform motion (when normally moving in theory) along guide rail, if the spacing between every adjacent two steps is D, the specified operating rate of step is V, and the signal waveform of inductance approach switch as shown in Figure 4, to tn in the time period, the average operating time of each step is from t0
The average running speed of staircase
, the standard running velocity of staircase is v
s(under the normal conditions being: 0.45m/s, 0.50m/s, 0.65m/s)
When two detector switches 2 and 3 have up and down detected hypervelocity simultaneously or owed the state of speed, system just judges that staircase is in this state, and staircase will be out of service automatically.If when staircase is in overspeed condition, also will carry out emergency braking.The waveform of inductance approach switch such as Fig. 5 and Fig. 6 when escalator is descending and up.Because two detector switches in upper and lower have the phase difference of D/4 on the installation site, therefore:
The system that draws thus judges that the condition of driving in the wrong direction is (establishing tolerance is 20%):
When staircase is set at downward operation
When staircase is set at when upwards moving
Above-mentioned judgment criterion is compiled to corresponding program, moved these programs, send the action of control command control corresponding relays, thereby realize monitoring escalator by little processing controls.
Claims (4)
1. escalator operation safety monitoring method, comprise a process of utilizing movable parts state in the sensor escalator, it is characterized in that: in the described process of utilizing sensor movable parts state, utilize one first inductance approach switch to detect the running velocity of a step wheel shaft, utilize one second inductance approach switch to detect the running velocity of another step wheel shaft at synchronization, utilize treater that the feedback signal of described first inductance approach switch and second inductance approach switch and the running velocity normal value of step wheel shaft are compared respectively again, comparative result at first inductance approach switch and second inductance approach switch is under the state of hypervelocity, utilize the signal of described treater to actuating unit or read out instrument output step wheel shaft hypervelocity, comparative result at first inductance approach switch and second inductance approach switch is under the state of owing speed, utilizes described treater to owe the signal of speed to actuating unit or read out instrument output step wheel shaft.
2. device of realizing escalator operation safety monitoring method as claimed in claim 1, by the escalator control device, step roller track and two inductance approach switches constitute, be provided with a linear portion in the described step roller track, be provided with angle between the length direction of described linear portion and the horizontal direction, it is characterized in that: described two inductance approach switches include one first inductance approach switch and one second inductance approach switch, described first inductance approach switch and second inductance approach switch are fixedly installed on the outside of described step roller track linear portion respectively, first inductance approach switch is arranged on the upper end of step roller track linear portion, second inductance approach switch is arranged on the bottom of step roller track linear portion, and first inductance approach switch is connected by the signal end of signal wire (SW) with described escalator control device respectively with second inductance approach switch.
3. escalator operation safety monitoring device as claimed in claim 2, it is characterized in that: be provided with phase difference between described first inductance approach switch and the second inductance approach switch installation site, described phase difference equal between two adjacent step wheel shafts of escalator spacing 1/4th.
4. escalator operation safety monitoring device as claimed in claim 2 is characterized in that: be provided with microprocessor in the described escalator control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100342728A CN101264843B (en) | 2008-03-05 | 2008-03-05 | Escalator operation safety monitoring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100342728A CN101264843B (en) | 2008-03-05 | 2008-03-05 | Escalator operation safety monitoring method and device |
Publications (2)
| Publication Number | Publication Date |
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| CN101264843A CN101264843A (en) | 2008-09-17 |
| CN101264843B true CN101264843B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100342728A Expired - Fee Related CN101264843B (en) | 2008-03-05 | 2008-03-05 | Escalator operation safety monitoring method and device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372222B (en) * | 2010-08-26 | 2013-06-05 | 上海三菱电梯有限公司 | Reverse, over-speed and stall protection safety circuit of escalator and moving walkway |
| CN102411158B (en) * | 2010-09-21 | 2014-12-31 | 鞍钢股份有限公司 | Detection method for trolley entering into working region |
| JP5679576B2 (en) * | 2011-06-06 | 2015-03-04 | 東芝エレベータ株式会社 | Passenger conveyor |
| CN102367150A (en) * | 2011-10-27 | 2012-03-07 | 康力电梯股份有限公司 | Ladder step missing detection device |
| CN102431876A (en) * | 2011-11-28 | 2012-05-02 | 杭州优迈科技有限公司 | Integrated controller of automatic bypass frequency-variable escalator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282305A (en) * | 1997-12-04 | 2001-01-31 | 通力股份公司 | Safety device for escalators and moving walkways |
| CN1477052A (en) * | 2003-01-15 | 2004-02-25 | 上海三菱电梯有限公司 | Permanent magnetic synchronous motor driven automatic escalator and overspeed protection device for automatic pavement |
| WO2005051811A1 (en) * | 2003-10-29 | 2005-06-09 | Otis Elevator Company | Passenger conveyor drive monitoring arrangement with brake actuation |
| WO2007032366A1 (en) * | 2005-09-14 | 2007-03-22 | Toshiba Elevator Kabushiki Kaisha | Device for detecting abnormality of step, and passenger conveyor |
| CN101006005A (en) * | 2004-08-24 | 2007-07-25 | 东芝电梯株式会社 | Footstep movement detection device of passenger conveyor |
| JP2008037601A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Building Systems Co Ltd | Method of detecting slip of moving handrail and device of detecting slip of moving handrail using it |
-
2008
- 2008-03-05 CN CN2008100342728A patent/CN101264843B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282305A (en) * | 1997-12-04 | 2001-01-31 | 通力股份公司 | Safety device for escalators and moving walkways |
| CN1477052A (en) * | 2003-01-15 | 2004-02-25 | 上海三菱电梯有限公司 | Permanent magnetic synchronous motor driven automatic escalator and overspeed protection device for automatic pavement |
| WO2005051811A1 (en) * | 2003-10-29 | 2005-06-09 | Otis Elevator Company | Passenger conveyor drive monitoring arrangement with brake actuation |
| CN101006005A (en) * | 2004-08-24 | 2007-07-25 | 东芝电梯株式会社 | Footstep movement detection device of passenger conveyor |
| WO2007032366A1 (en) * | 2005-09-14 | 2007-03-22 | Toshiba Elevator Kabushiki Kaisha | Device for detecting abnormality of step, and passenger conveyor |
| JP2008037601A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Building Systems Co Ltd | Method of detecting slip of moving handrail and device of detecting slip of moving handrail using it |
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| CN101264843A (en) | 2008-09-17 |
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