CN105540399A - Escalator safety device based on ultrasonic distance measurement and using method - Google Patents
Escalator safety device based on ultrasonic distance measurement and using method Download PDFInfo
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- CN105540399A CN105540399A CN201510956815.1A CN201510956815A CN105540399A CN 105540399 A CN105540399 A CN 105540399A CN 201510956815 A CN201510956815 A CN 201510956815A CN 105540399 A CN105540399 A CN 105540399A
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- pedal
- distance measuring
- micro controller
- controller system
- ultrasonic distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Rehabilitation Tools (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention relates to an escalator safety device based on ultrasonic distance measurement and a using method and belongs to the technical field of escalators. According to the escalator safety device based on ultrasonic distance measurement and the using method, the distance between a pedal and the bottom of an escalator shaft is measured in real time through ultrasonic distance measurement modules which are installed on the portion, located at an entrance of an escalator, of the downward-facing side of the pedal and the portion, at an exit of the escalator, of the downward-facing side of the pedal, and a real-time measurement result is fed back to a single-chip microcomputer; the single-chip microcomputer judges whether the pedal is in a closed state or in an open state in time according to the comparison of real-time measurement data and initial data; if the pedal is in the open state, a motor connected with the pedal is controlled to stop in time, so that the escalator is made to stop operating, and accordingly accidents are prevented.
Description
Technical field
The present invention relates to a kind of handrail elevator safety device based on ultrasonic ranging and using method, belong to elevator technology field.
Background technology
At present, step escalator is extensively installed in various large-scale public situation such as each emporium, large supermarket, subways.Along with the widespread use of escalator, safety problem highlights day by day, and the report that handrail elevator " eats people " is also of common occurrence.Wherein some reason is elevator user improper use, but also some reason is that elevator design itself exists potential safety hazard.
Existing ultrasonic technology is widely used, and cost is low.Realize untouchable measurement when not destroying medium characteristic, adaptive capacity to environment is strong, can realize on-line measurement.This advantage makes ultrasonic measuring distance technology can apply to multiple occasion, and obtains desirable effect.
Summary of the invention
Based on the needs of actual life, the present invention has invented a kind of safety device of handrail elevator in conjunction with ultrasonic measuring distance technology, ensure that the safe operation of handrail elevator.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of handrail elevator safety device based on ultrasonic ranging, comprise ultrasonic distance measuring module, ultrasonic distance measuring module be installed on respectively elevator entrance place pedal towards below with exit pedal towards below, ultrasonic distance measuring module is for measuring the distance bottom pedal to elevator; Described ultrasonic distance measuring module is connected with micro controller system, by data transfer to micro controller system; Power module powers to respectively ultrasonic distance measuring module and micro controller system; Micro controller system is analyzed receiving from the take off data of ultrasonic distance measuring module and initial measurement data, and judges the open and-shut mode of pedal, and sends instruction to the electrical motor be attached thereto, and controls the running of electrical motor.
Perfect further to such scheme:
Described each pedal is all installed five ultrasonic distance measuring modules, lay respectively at corner and the center of pedal.
Described ultrasonic distance measuring module adopts the ultrasonic distance measuring module of HC-SR04 type.
Described micro controller system adopts STM32F103 chip.
Described power module converts 220V alternating current to 5V direct current (DC).
The present invention also provides a kind of handrail elevator safety device using method based on ultrasonic ranging, and the method comprises the following steps:
The initial distance bottom pedal to elevator is preset in step 1) micro controller system;
Step 2) in the bottom of elevator entrance place pedal and exit pedal, five ultrasonic distance measuring modules launched are installed respectively downwards, lay respectively at corner and the center of pedal;
Ultrasonic distance measuring module is connected with micro controller system respectively by serial ports by step 3), and is powered to ultrasonic distance measuring module and micro controller system by power module, and the micro controller system other end connects the electrical motor of elevator;
The transmitting terminal of step 4) ultrasonic distance measuring module launches the square wave of 8 40KHz, super sonic is propagated in atmosphere, encounter obstacle in way just to return immediately, high level is exported after the receiving end of ultrasonic distance measuring module receives backward wave, high level lasting time is exactly that super sonic is transmitted into the time returned, by calculating the distance bottom pedal to elevator;
Information is reached micro controller system by serial communication mode by step 5) ultrasonic distance measuring module, micro controller system draws distance comparatively accurately by calculating in the mode of averaging, and the distance recorded and initial distance are contrasted, analyze, judge whether pedal is opened by fuzzy algorithm;
If step 6) micro controller system judges that pedal is open mode, then send out code to electrical motor, electrical motor is closed, and handrail elevator is shut down; If micro controller system judges that pedal is closed condition, then do not send instruction to electrical motor, elevator normal operation.
The present invention utilizes the distance of ultrasonic measuring distance technology to elevator pedal and elevator shaft bottom to measure, and makes micro controller system can judge the state of pedal in time, controls the running of escalator, thus trouble-saving generation.
Below by way of the drawings and specific embodiments, the present invention is further elaborated.
accompanying drawing illustrates:
Fig. 1 is structural principle block diagram of the present invention.
detailed description of the invention:
Shown in composition graphs 1, a kind of handrail elevator safety device based on ultrasonic ranging, comprise ultrasonic distance measuring module, ultrasonic distance measuring module be installed on respectively elevator entrance place pedal towards below with exit pedal towards below, ultrasonic distance measuring module is for measuring the distance of pedal to elevator shaft bottom; Ultrasonic distance measuring module is connected with micro controller system, by data transfer to micro controller system; Power module powers to respectively ultrasonic distance measuring module and micro controller system; Micro controller system is analyzed receiving from the take off data of ultrasonic distance measuring module and initial measurement data, if measuring distance is less than initial distance in real time, then ultrasonic distance measuring module is found range three times continuously, three result of a measurement are with measured data consistent above and be all less than initial distance, then micro controller system judges that pedal is as opening, micro controller system sends out code to the electrical motor be attached thereto, and elevator shuts down.
Ultrasonic distance measuring module in such scheme realizes the transmission of data by serial ports and single chip communication.Because ultrasonic ranging has certain error, for reducing error, the present embodiment respectively arranges one and launches hypracoustic ultrasonic distance measuring module downwards in the corner of same pedal and center, for measuring the distance bottom pedal to elevator, five result of a measurement being averaged and reducing error.
In order to make result of a measurement accurate as far as possible, the present embodiment selects the ultrasonic distance measuring module of HC-SR04 type; Micro controller system adopts STM32F103 chip, and this chip has 13 communication interfaces, can meet the communication between micro controller system and five ultrasonic distance measuring modules completely; Power module converts 220V alternating current to 5V direct current (DC).
Based on the handrail elevator safety device using method of such scheme, comprise the following steps:
The initial distance bottom pedal to elevator is preset in step 1) micro controller system;
Step 2) in the bottom of elevator entrance place pedal and exit pedal, five ultrasonic distance measuring modules launched are installed respectively downwards, lay respectively at corner and the center of pedal;
Ultrasonic distance measuring module is connected with micro controller system respectively by serial ports by step 3), and is powered to ultrasonic distance measuring module and micro controller system by power module, and the micro controller system other end connects the electrical motor of elevator;
The transmitting terminal of step 4) ultrasonic distance measuring module launches the square wave of 8 40KHz, super sonic is propagated in atmosphere, encounter obstacle in way just to return immediately, high level is exported after the receiving end of ultrasonic distance measuring module receives backward wave, high level lasting time is exactly that super sonic is transmitted into the time returned, by calculating the distance bottom pedal to elevator;
Information is reached micro controller system by serial communication mode by step 5) ultrasonic distance measuring module, micro controller system draws distance comparatively accurately by calculating in the mode of averaging, and the distance recorded and initial distance are contrasted, analyze, if measuring distance is less than initial distance in real time, then ultrasonic distance measuring module is found range three times continuously, three result of a measurement are with measured data consistent above and be all less than initial distance, then micro controller system judges that pedal is as opening;
If step 6) micro controller system judges that pedal is open mode, then send out code to electrical motor, electrical motor is closed, and handrail elevator is shut down; If micro controller system judges that pedal is closed condition, then do not send instruction to electrical motor, elevator normal operation.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in right of the present invention.
Claims (6)
1. the handrail elevator safety device based on ultrasonic ranging, it is characterized in that: comprise ultrasonic distance measuring module, ultrasonic distance measuring module be installed on respectively elevator entrance place pedal towards below with exit pedal towards below, ultrasonic distance measuring module is for measuring the distance bottom pedal to elevator; Described ultrasonic distance measuring module is connected with micro controller system, by data transfer to micro controller system; Power module powers to respectively ultrasonic distance measuring module and micro controller system; Micro controller system is analyzed receiving from the take off data of ultrasonic distance measuring module and initial measurement data, and judges the open and-shut mode of pedal, and sends instruction to the electrical motor be attached thereto, and controls the running of electrical motor.
2. a kind of handrail elevator safety device based on ultrasonic ranging according to claim 1, is characterized in that: described each pedal is all installed five ultrasonic distance measuring modules, lays respectively at corner and the center of pedal.
3. a kind of handrail elevator safety device based on ultrasonic ranging according to claim 1, is characterized in that: described ultrasonic distance measuring module adopts the ultrasonic distance measuring module of HC-SR04 type.
4. a kind of handrail elevator safety device based on ultrasonic ranging according to claim 1, is characterized in that: described micro controller system adopts STM32F103 chip.
5. a kind of handrail elevator safety device based on ultrasonic ranging according to claim 1, is characterized in that: described power module converts 220V alternating current to 5V direct current (DC).
6. as claim 1 to 5 any based on a handrail elevator safety device using method for ultrasonic ranging, it is characterized in that:
Comprise the following steps:
The initial distance bottom pedal to elevator is preset in step 1) micro controller system;
Step 2) in the bottom of elevator entrance place pedal and exit pedal, five ultrasonic distance measuring modules launched are installed respectively downwards, lay respectively at corner and the center of pedal;
Ultrasonic distance measuring module is connected with micro controller system respectively by serial ports by step 3), and is powered to ultrasonic distance measuring module and micro controller system by power module, and the micro controller system other end connects the electrical motor of elevator;
The transmitting terminal of step 4) ultrasonic distance measuring module launches the square wave of 8 40KHz, super sonic is propagated in atmosphere, encounter obstacle in way just to return immediately, high level is exported after the receiving end of ultrasonic distance measuring module receives backward wave, high level lasting time is exactly that super sonic is transmitted into the time returned, by calculating the distance bottom pedal to elevator;
Information is reached micro controller system by serial communication mode by step 5) ultrasonic distance measuring module, micro controller system draws distance comparatively accurately by calculating in the mode of averaging, and the distance recorded and initial distance are contrasted, analyze, judge whether pedal is opened by fuzzy algorithm;
If step 6) micro controller system judges that pedal is open mode, then send out code to electrical motor, electrical motor is closed, and handrail elevator is shut down; If micro controller system judges that pedal is closed condition, then do not send instruction to electrical motor, elevator normal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956815.1A CN105540399B (en) | 2015-12-18 | 2015-12-18 | A kind of handrail elevator safety device and application method based on ultrasonic ranging |
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| CN201510956815.1A CN105540399B (en) | 2015-12-18 | 2015-12-18 | A kind of handrail elevator safety device and application method based on ultrasonic ranging |
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| CN105540399A true CN105540399A (en) | 2016-05-04 |
| CN105540399B CN105540399B (en) | 2017-09-08 |
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| DE20218477U1 (en) * | 2002-11-28 | 2003-03-06 | Thyssen Fahrtreppen GmbH, 22113 Hamburg | Escalator fault detection system uses sound sensors with spectral processing |
| JP2012126542A (en) * | 2010-12-17 | 2012-07-05 | Mitsubishi Electric Building Techno Service Co Ltd | Passenger conveyer |
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| CN103264950A (en) * | 2013-05-29 | 2013-08-28 | 江南嘉捷电梯股份有限公司 | Pedal losing device of moving sidewalk |
| CN203922416U (en) * | 2014-03-18 | 2014-11-05 | 东芝电梯株式会社 | Passenger conveying appliance |
| JP2015168538A (en) * | 2014-03-07 | 2015-09-28 | 東芝エレベータ株式会社 | Escalator and method of controlling escalator |
| JP2015168554A (en) * | 2014-03-10 | 2015-09-28 | 東芝エレベータ株式会社 | Passenger conveyor device |
| CN105016186A (en) * | 2015-07-31 | 2015-11-04 | 苏州宏展信息科技有限公司 | Safety interlocking system for escalator |
| CN105110161A (en) * | 2015-08-18 | 2015-12-02 | 李宝 | Escalator with safety stopping device |
| CN205222423U (en) * | 2015-12-18 | 2016-05-11 | 浙江理工大学 | Handrail elevator's safety device |
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2015
- 2015-12-18 CN CN201510956815.1A patent/CN105540399B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241073A (en) * | 2001-02-20 | 2002-08-28 | Hitachi Building Systems Co Ltd | Safety device for passenger conveyor |
| DE20218477U1 (en) * | 2002-11-28 | 2003-03-06 | Thyssen Fahrtreppen GmbH, 22113 Hamburg | Escalator fault detection system uses sound sensors with spectral processing |
| JP2012126542A (en) * | 2010-12-17 | 2012-07-05 | Mitsubishi Electric Building Techno Service Co Ltd | Passenger conveyer |
| CN202766069U (en) * | 2012-05-14 | 2013-03-06 | 日立电梯（中国）有限公司 | Protection device for elevator drive device |
| CN103264950A (en) * | 2013-05-29 | 2013-08-28 | 江南嘉捷电梯股份有限公司 | Pedal losing device of moving sidewalk |
| JP2015168538A (en) * | 2014-03-07 | 2015-09-28 | 東芝エレベータ株式会社 | Escalator and method of controlling escalator |
| JP2015168554A (en) * | 2014-03-10 | 2015-09-28 | 東芝エレベータ株式会社 | Passenger conveyor device |
| CN203922416U (en) * | 2014-03-18 | 2014-11-05 | 东芝电梯株式会社 | Passenger conveying appliance |
| CN105016186A (en) * | 2015-07-31 | 2015-11-04 | 苏州宏展信息科技有限公司 | Safety interlocking system for escalator |
| CN105110161A (en) * | 2015-08-18 | 2015-12-02 | 李宝 | Escalator with safety stopping device |
| CN205222423U (en) * | 2015-12-18 | 2016-05-11 | 浙江理工大学 | Handrail elevator's safety device |
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| CN105540399B (en) | 2017-09-08 |
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Effective date of registration: 20210107 Address after: Room 0304, building 1, Keqiao Tianfu center, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Fan Yufeng Address before: No.928, No.2 Baiyang street, Hangzhou Economic and Technological Development Zone, Hangzhou, Zhejiang 310000 Patentee before: Zhejiang University of Technology |
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Effective date of registration: 20210121 Address after: No.928, No.2 Baiyang street, Hangzhou Economic and Technological Development Zone, Hangzhou, Zhejiang 310000 Patentee after: Zhejiang University of Technology Address before: Room 0304, building 1, Keqiao Tianfu center, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: Fan Yufeng |