CN109597085A - A kind of ultrasonic sensor applied to escalator - Google Patents
A kind of ultrasonic sensor applied to escalator Download PDFInfo
- Publication number
- CN109597085A CN109597085A CN201910058698.5A CN201910058698A CN109597085A CN 109597085 A CN109597085 A CN 109597085A CN 201910058698 A CN201910058698 A CN 201910058698A CN 109597085 A CN109597085 A CN 109597085A
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- module
- connect
- escalator
- transmitter
- ultrasonic sensor
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- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The present invention provides a kind of ultrasonic sensor applied to escalator comprising: transmitting drive module, the transmitting drive module are connect with transmitter, and the transmitting drive module drives the transmitter to issue ultrasonic signal；Receiving module, the receiving module are connect with receiver, and the receiver is used to receive the ultrasonic signal that the transmitter issues；Power module, the power module are connect with the transmitting drive module, receiving module；Processing module is controlled, the control processing module is connect with the signal output end of the receiving module, and the controller of the control processing module and escalator connects.The ultrasonic sensor uses high-frequency ultrasonic transmitter and reduces the driving circuit of ultrasonic wave remained shock, improve low blind area and high-precision, high directivity of the ultrasonic sensor in short distance detection, automatic staircase handrail band finger function is realized, can effectively prevent children that hand scroll is accidentally entered danger caused by handrail entrance.
Description
Technical field
The present invention relates to a kind of sensor, in particular to a kind of ultrasonic sensor applied to escalator.
Background technique
The public places such as the various large supermarket markets of development with society are equipped with helping automatically for multi-section or more floor gap
Ladder is to meet the needs of leisurely and carefree fashionable shopping, however existing staircase generally all lacks installation finger in handrail entrance
Device, although adult can be good at avoiding this risk, children lack this prevention awareness, along with adult is to youngster
Virgin is negligent of supervising, and this accident is made to happen occasionally.
Patent of invention (patent No.: 201710937404.7) discloses a kind of handrail elevator finger dress with controlled by sound and light
It sets, is related to the protective device field that escalator or moving sidewalk use, being mounted on the bottom of escalator or moving sidewalk
At portion's handrail entrance, including guidance block body, the guidance block body is correspondingly arranged at below handrail, towards handrail
The inner end of inlet is taken out of close at handrail entrance and sheltering from and being arranged at handrail entrance, is entered and left backwards to handrail
The two sides of outer end at mouthful are equipped with the guide surface to end relative tilt, and the other end for guiding block body is made to form tip-angled shape
Structure.Above-mentioned guidance block body shelters from the entrance of handrail, can play the role of it is certain prevent object from protruding into, draw
The outer end of guide block ontology is tip-angled shape structure, and has inclined guide surface, can just be led to having when object is close to be continued and move ahead
Object is guided out by the effect for crossing wedge angle and guide surface to the two sides of handrail, makes object will not be close to handrail entrance.
This handrail elevator finger pinch device structure is complex, and implementing is not very convenient, best mode
Or it is realized in such a way that sensor is braked.But since the application environment of escalator, application are more special, at present
There are no a kind of sensor of specialized application in terms of escalator finger.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of specialized applications in escalator
On can play the role of the ultrasonic sensor of finger.
In order to achieve the above objects and other related objects, the present invention provides a kind of supersonic sensing applied to escalator
Device comprising: transmitting drive module, the transmitting drive module are connect with transmitter, described in the transmitting drive module driving
Transmitter issues ultrasonic signal；Receiving module, the receiving module are connect with receiver, and the receiver is described for receiving
The ultrasonic signal that transmitter issues；Power module, the power module are connect with the transmitting drive module, receiving module；
Processing module is controlled, the control processing module is connect with the signal output end of the receiving module, the control processing module
It is connect with the controller of escalator.
Preferably, the transmitting drive module includes high-frequency oscillating circuits, transformer and by one-shot multivibrator
The thyristor control circuit of triggering, the high-frequency vibration circuit are connect by the transformer with the transmitter, the crystalline substance lock
Pipe control circuit and the high-frequency vibration circuit, transformers connected in parallel.
Preferably, the receiving module includes low-noise amplifier, bandpass filter and comparator, the low noise amplification
Device is connect with the receiver, and the bandpass filter is connect with the low-noise amplifier, the comparator and the band logical
Filter connection.
Preferably, the transmitter is the piezoelectric ceramics of vertical thickness vibration mode.
Preferably, the piezoelectric ceramics surface is equipped with acoustic matching layer.
As described above, the ultrasonic sensor that should be used for escalator has the advantages that the escalator
Ultrasonic sensor non-is connect using the characteristics such as the orientable transmitting of ultrasonic wave, directive property is good, in conjunction with microelectric technique come what is realized
Touch detection mode, it is insensitive to ambient and electromagnetic field, can be used for it is dark, have dust or smog, electromagnetic interference are strong etc. dislikes
In bad environment, and structure is simple, small in size, and expense is low, and information processing is simple and reliable, is easy to minimize and integrated, the ultrasound
Wave sensor uses high-frequency ultrasonic transmitter and reduces the driving circuit of ultrasonic wave remained shock, improves ultrasonic sensor and exists
The closely low blind area in detection and high-precision, high directivity, realize automatic staircase handrail band finger function, can effectively prevent
Only hand scroll is accidentally entered danger caused by handrail entrance by children.
Detailed description of the invention
Fig. 1 is the frame structure schematic diagram of the embodiment of the present invention.
Component label instructions: 1, power module；2, emit drive module；21, dither, 22, transformer；23, brilliant
Brake tube control circuit；3, receiving module；31, low-noise amplifier；32, bandpass filter；33, comparator；4, transmitter；5, it connects
Receive device；6, processing module is controlled.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Please refer to Fig. 1.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification is not intended to limit the invention enforceable so that those skilled in the art understands and reads
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
It does not influence still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
It obtains in the range of capable of covering.Meanwhile cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides a kind of ultrasonic sensor applied to escalator, the ultrasonic sensor
It include: power module 1, transmitting drive module 2, receiving module 3, transmitter 4, receiver 5 and control processing module 6.Transmitting is driven
Dynamic model block 2 is connect with transmitter 4, drives transmitter 4 that it is made to issue ultrasonic signal by transmitting drive module 2.Receiving module 3
It is connect with receiver 5, receiver 5 is used for the ultrasonic signal that receiver transmitter 4 issues and is fed back to receiving module 3；Control
Processing module 6 processed is connect with the signal output end of receiving module 3, and control processing module 6 is also connect with the controller of escalator,
The controller for the feedback signal control escalator that control processing module 6 is used to be sent according to receiving module 3, works as appearance in this way
It can control escalator fast reaction when the situation of " clamp hand ".Power module 1 and transmitting drive module 2, receiving module 3, are used for
It powers to transmitting drive module 2, receiving module 3.
As a preferred embodiment of this patent, emitting drive module 2 includes high-frequency oscillating circuits 21, transformer 22
And the thyristor control circuit 23 triggered by one-shot multivibrator, high-frequency vibration circuit 21 is by transformer 22 and sends
Device 4 connects, and thyristor control circuit 23 is in parallel with high-frequency vibration circuit 21, transformer 22.Transformer 22 is used to realize load
Match, improves emitting voltage.Contain monostable output low level thyristor and resistance, specific structure in thyristor control circuit 23
For the prior art, therefore it is not described in detail herein.The thyristor control circuit 23 can by the disconnection of thyristor in circuit and
The partition and access of resistance in circuit are realized in conducting.During transmitted pulse width, monostable exports low level thyristor and disconnects, no electricity
Resistance access and transmitter shunt circuit, do not influence the work of transmitter 4；At the end of transmitted pulse width, monostable exports high level, brilliant
Brake tube controlled stage obtains trigger signal conducting, and resistance access circuit consumes 4 energy of transmitter, makes remained shock quick disappearance, to subtract
The small blind area of ultrasonic distance measurement.
High-frequency oscillating circuits 21 can generate the high-frequency narrow-pulse wave that centre frequency is greater than 300KHz, and effect is to improve ultrasound
The resolution ratio and directionality of wave sensor make its resolution ratio can reach 1mm hereinafter, directionality is no more than 8deg.Transmitter 4 uses
The piezoelectric ceramics of vertical thickness vibration mode, and by adhere to special material realized as acoustic matching layer high-frequency detection in and
The matching of air acoustic impedance.
Receiving module 3 include low-noise amplifier 31, bandpass filter 32 and comparator 33, low-noise amplifier 31 with connect
It receives device 5 to connect, bandpass filter 32 is connect with low-noise amplifier 31, and comparator 33 is connect with bandpass filter 32.Low noise
Amplifier 31 is used to receive the ultrasonic signal of the acquisition of receiver 5 and amplifies, and bandpass filter 32 is used to carry out signal
Filtering, comparator 33 are used to carry out signal detection and are conveyed to control processing module 6 by output end.
Sensor is mounted at automatic staircase handrail band entrance by the ultrasonic wave wave sensor when in use, works as appearance
When the case where " clamp hand ", sensor can quickly incude and to control escalator out of service.The ultrasonic wave of the escalator passes
Sensor utilizes the characteristics such as the orientable transmitting of ultrasonic wave, directive property is good, the non-contact detection realized in conjunction with microelectric technique
Mode, it is insensitive to ambient and electromagnetic field, can be used for it is dark, have dust or the adverse circumstances such as smog, electromagnetic interference be strong in,
And structure is simple, small in size, expense is low, and information processing is simple and reliable, is easy to minimize and integrated, which adopts
With high-frequency ultrasonic transmitter and the driving circuit of reduction ultrasonic wave remained shock, improves ultrasonic sensor and detected in short distance
In low blind area and high-precision, high directivity, realize automatic staircase handrail band finger function, can effectively prevent children accidentally will
Hand scroll enters danger caused by handrail entrance.So the present invention effectively overcomes various shortcoming in the prior art and has height
Spend value of industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (5)
1. a kind of ultrasonic sensor applied to escalator, which is characterized in that the ultrasonic sensor is mounted on automatically
Escalator handrail entrance, the ultrasonic sensor include:
Emit drive module, the transmitting drive module is connect with transmitter, and the transmitting drive module drives the transmitter
Issue ultrasonic signal；
Receiving module, the receiving module are connect with receiver, and the receiver is used to receive the ultrasound that the transmitter issues
Wave signal；
Power module, the power module are connect with the transmitting drive module, receiving module；
Processing module is controlled, the control processing module is connect with the signal output end of the receiving module, the control processing
The connection of the controller of module and escalator.
2. the ultrasonic sensor according to claim 1 applied to escalator, it is characterised in that: the transmitting driving
Module includes high-frequency oscillating circuits, transformer and the thyristor control circuit triggered by one-shot multivibrator, the height
Frequency vibration circuit is connect by the transformer with the transmitter, the thyristor control circuit and high-frequency vibration electricity
Road, transformers connected in parallel.
3. the ultrasonic sensor according to claim 1 applied to escalator, it is characterised in that: the receiving module
Including low-noise amplifier, bandpass filter and comparator, the low-noise amplifier is connect with the receiver, the band logical
Filter is connect with the low-noise amplifier, and the comparator is connect with the bandpass filter.
4. the ultrasonic sensor according to claim 1 applied to escalator, it is characterised in that: the transmitter is
The piezoelectric ceramics of vertical thickness vibration mode.
5. the ultrasonic sensor according to claim 4 applied to escalator, it is characterised in that: the piezoelectric ceramics
Surface is equipped with acoustic matching layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910058698.5A CN109597085A (en) | 2019-01-22 | 2019-01-22 | A kind of ultrasonic sensor applied to escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910058698.5A CN109597085A (en) | 2019-01-22 | 2019-01-22 | A kind of ultrasonic sensor applied to escalator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109597085A true CN109597085A (en) | 2019-04-09 |
Family
ID=65965281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910058698.5A Pending CN109597085A (en) | 2019-01-22 | 2019-01-22 | A kind of ultrasonic sensor applied to escalator |
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| CN (1) | CN109597085A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050121288A1 (en) * | 2003-12-08 | 2005-06-09 | Dirk Blondiau | Equipment for monitoring the space in front of escalators and moving walkways by high-frequency sensors |
| CN101934969A (en) * | 2010-03-26 | 2011-01-05 | 秦皇岛国安电力电子技术有限公司 | Escalator inlet human body inductor |
| CN202030423U (en) * | 2011-01-27 | 2011-11-09 | 许昌西继电梯有限公司 | Escalator monitoring device |
| CN202119911U (en) * | 2011-04-01 | 2012-01-18 | 上海艾澜达泵业有限公司 | Circuit for reducing ultrasonic range holes |
| CN206955427U (en) * | 2017-05-03 | 2018-02-02 | 昆明理工大学 | A kind of escalator Realtime Alerts based on ultrasonic ranging are with removing clamp device |
-
2019
- 2019-01-22 CN CN201910058698.5A patent/CN109597085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050121288A1 (en) * | 2003-12-08 | 2005-06-09 | Dirk Blondiau | Equipment for monitoring the space in front of escalators and moving walkways by high-frequency sensors |
| CN101934969A (en) * | 2010-03-26 | 2011-01-05 | 秦皇岛国安电力电子技术有限公司 | Escalator inlet human body inductor |
| CN202030423U (en) * | 2011-01-27 | 2011-11-09 | 许昌西继电梯有限公司 | Escalator monitoring device |
| CN202119911U (en) * | 2011-04-01 | 2012-01-18 | 上海艾澜达泵业有限公司 | Circuit for reducing ultrasonic range holes |
| CN206955427U (en) * | 2017-05-03 | 2018-02-02 | 昆明理工大学 | A kind of escalator Realtime Alerts based on ultrasonic ranging are with removing clamp device |
Non-Patent Citations (1)
| Title |
|---|
| 狄长安等 编著: "《现代传感器技术及应用》", 30 November 2007 * |
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Application publication date: 20190409 |