CN107304024A - A kind of handrail elevator safety guard - Google Patents

A kind of handrail elevator safety guard Download PDF

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Publication number
CN107304024A
CN107304024A CN201610245061.3A CN201610245061A CN107304024A CN 107304024 A CN107304024 A CN 107304024A CN 201610245061 A CN201610245061 A CN 201610245061A CN 107304024 A CN107304024 A CN 107304024A
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CN
China
Prior art keywords
signal
motion characteristic
elevator
processor
characteristic signal
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.)
Pending
Application number
CN201610245061.3A
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Chinese (zh)
Inventor
胡波清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Blue Water Intelligent Electronic Co Ltd
Original Assignee
Guangdong Blue Water Intelligent Electronic Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Blue Water Intelligent Electronic Co Ltd filed Critical Guangdong Blue Water Intelligent Electronic Co Ltd
Priority to CN201610245061.3A priority Critical patent/CN107304024A/en
Publication of CN107304024A publication Critical patent/CN107304024A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00Safety devices of escalators or moving walkways
    • B66B29/005Applications of security monitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00Control of escalators or moving walkways

Abstract

This application discloses a kind of handrail elevator safety guard, including:First inductive head, it is arranged on the lower end that elevator exports side, acts for sensing elevator exit measured object and generates corresponding first motion characteristic signal;Second inductive head, it is arranged on the lower end that elevator exports opposite side, acts for sensing elevator exit measured object and generates corresponding second motion characteristic signal;And central processing unit, it is electrically connected with the first inductive head, the second inductive head and handrail elevator controller respectively, for obtaining the first motion characteristic signal and the second motion characteristic signal, and whether security incident is occurred according to the first motion characteristic signal and the second motion characteristic signal determining elevator, if so, then sending one is used to control elevator instruction code out of service to give handrail elevator controller.This handrail elevator safety guard can sense whether handrail elevator occurs security incident and control elevator emergency out of service in real time, improve the security of handrail elevator.

Description

A kind of handrail elevator safety guard
Technical field
The application is related to microwave induced technical field, and in particular to a kind of handrail elevator safety guard.
Background technology
At present, it is fitted with handrail elevator in the larger building of the flow of the people such as many markets, station.Although helping Torch ladder brings the facility of many to our life, but at the same time, the also personal safety to us Leave huge hidden danger.For example, there are personnel fall, push on handrail elevator in society often, Trample or roll and climb and cause injured or even dead security incident.It is most of when handrail elevator accident occurs People can be because height is alarmed nervous and forgets or stops electricity using the emergency stop button on elevator not in time Ladder, causes casualty situations more serious.
The content of the invention
The application, which provides one kind, can sense whether handrail elevator occurs security incident and control elevator emergency to stop The handrail elevator safety guard of operation.
A kind of handrail elevator safety guard is provided in a kind of embodiment, including:
First inductive head, it is arranged on the side that elevator is exported, and the measured object for sensing elevator exit is moved Make and generate corresponding first motion characteristic signal;
Second inductive head, it is arranged on the opposite side that elevator is exported, the measured object for sensing elevator exit Act and generate corresponding second motion characteristic signal;
And central processing unit, it is electric with the first inductive head, the second inductive head and handrail elevator controller respectively Connection, for obtaining the first motion characteristic signal and the second motion characteristic signal, and according to the first motion characteristic Signal and the second motion characteristic signal judge whether security incident occur in elevator, if so, then sending a use Handrail elevator controller is given in control elevator instruction code out of service.
Further, the measured object motion characteristic letter when security incident occurs is pre-stored with central processing unit Cease data, central processing unit is by data expressed in the first motion characteristic signal and the second motion characteristic signal Be combined with when security incident occurs measured object motion characteristic information data contrasted, if similarity is more than Default gate valve value, then judge security incident occur in elevator.
Further, the first inductive head includes the first microwave remote sensor, the first amplifier and first processor, First microwave remote sensor, the first amplifier and first processor are sequentially connected electrically, first processor and centre Manage device electrical connection;First microwave remote sensor is used to launch frequency electromagnetic waves to elevator exit region and receive to reflect The reflection electromagnetic wave returned, and the electromagnetic wave according to transmitting and reflection electromagnetic wave the first Doppler of output being reflected back Signal;First amplifier is used to obtain the first Doppler signal and exported after being amplified;First processor is used The first motion characteristic signal is generated in the first Doppler signal for obtaining amplification, and according to Doppler signal;
Second inductive head includes the second microwave remote sensor, the second amplifier and second processor, and the second microwave is passed Sensor, the second amplifier and second processor are sequentially connected electrically, and second processor is electrically connected with central processing unit; Second microwave remote sensor is used to launch frequency electromagnetic waves to elevator exit region and receives the reflection electromagnetism being reflected back Ripple, and electromagnetic wave and reflection electromagnetic wave the second Doppler signal of output being reflected back according to transmitting;Second puts Big device is used to obtain the second Doppler signal and exported after being amplified;Second processor is used to obtain amplification Second Doppler signal, and the second motion characteristic signal is generated according to Doppler signal.
Further, the first microwave remote sensor and the second microwave remote sensor are double base microwave remote sensor.
Further, the first microwave remote sensor and the second microwave remote sensor are separately mounted to handrail elevator outlet two The lower end of side.
Further, provided with the first A/D converter, the first digital filter and the first letter in first processor Number analyzer, the first A/D converter, the first digital filter and the first signal analyzer first post-process first The first motion characteristic signal is obtained after Doppler signal;
The second A/D converter, the second digital filter and secondary signal analyzer are provided with second processor, Second A/D converter, the second digital filter and secondary signal analyzer first post-process the second Doppler signal After obtain the second motion characteristic signal.
Further, the first signal analyzer extracts reflection measured object operating state from the first Doppler signal The information of feature generates the first motion characteristic signal;Secondary signal analyzer is extracted from the second Doppler signal Reflect that the information of measured object operating state feature generates the second motion characteristic signal.
Further, the first motion characteristic signal and the second motion characteristic signal are data signal.
Further, first processor and second processor are single-chip microcomputer.
Further, the first microwave remote sensor and the second microwave remote sensor search coverage are in that the default elevation angle is upward Set.
According to the handrail elevator safety guard of above-described embodiment, because two inductive heads are separately mounted to electricity The both sides of ladder outlet, two inductive heads are carried out from action of the both direction respectively to people in elevator or other objects Real-time detection, and the action detected two motion characteristic signals of generation are sent to central processing unit so that Central processing unit can judge whether danger occur in elevator according to two motion characteristic signals, so as to send The instruction code expansion dangerous to the prevention out of service of electric life controller emergent control elevator, improves elevator safety Performance, and the setting of two inductive heads, detect from action of the both direction simultaneously to measured object, make Obtaining central processing unit can more accurately judge whether dangerous play occurs, it is ensured that the higher spirit of the present apparatus While sensitivity, the False Rate of device is also reduced.
Brief description of the drawings
Fig. 1 is a kind of structured flowchart of handrail elevator safety guard in embodiment;
Fig. 2 is a kind of scheme of installation of handrail elevator safety guard in embodiment;
Fig. 3 is a kind of sensing direction schematic diagram of handrail elevator safety guard in embodiment;
Fig. 4 is a kind of workflow diagram of handrail elevator safety guard in embodiment.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
A kind of handrail elevator safety guard is provided in the present embodiment, and the present apparatus is arranged on handrail elevator On, whether there are personnel to occur to fall, push, trample or roll the danger such as to climb on real-time detection handrail elevator , such as there is above-mentioned dangerous play in action, carries out brake hard, prevents danger from further deteriorating, therefore this handrail Safety protection apparatus for elevator improves the security performance of handrail elevator, and this handrail elevator safety guard also may be used In other equipment or place, on such as walkway, alarm can be carried out to dangerous play.
As shown in figure 1, the handrail elevator safety guard that the present embodiment is provided includes the first inductive head 1, the Two inductive heads 2 and central processing unit 3.First inductive head 1, the second inductive head 2 respectively with central processing unit 3 Electrical connection, central processing unit 3 is also electrically connected with the handrail elevator controller 4 of handrail elevator.As shown in Fig. 2 First inductive head 1 and the second inductive head 2 are separately mounted to the both sides lower end of handrail elevator outlet, if elevator goes out Mouth and entrance need to switch over, then are respectively mounted a set of present apparatus in handrail elevator upper and lower ends.But only position Device in exit carries out security incident detection.
First inductive head 1 includes the first microwave remote sensor 11, the first amplifier 12 and first processor 13, First microwave remote sensor 11, the first amplifier 12 and first processor 13 are sequentially connected electrically, first processor 11 electrically connect with central processing unit 3.First microwave remote sensor 11 is double base microwave remote sensor, and the first microwave is passed Sensor 11 is used to launch frequency electromagnetic waves into elevator and receives the reflection electromagnetic wave being reflected back, and according to transmitting Electromagnetic wave and the reflection electromagnetic wave that is reflected back export and included in the first Doppler signal, the first Doppler signal Two Doppler signals, by calculating the phase difference of two-way Doppler signal, can determine whether out that testee is relative It is proximate to or remote in the displacement of double base microwave remote sensor, therefore double base microwave remote sensor can be realized to handrail The measured object action in elevator exit is detected.First amplifier 12 is used to obtain the first Doppler signal simultaneously Exported after being amplified.First processor 13 is single-chip microcomputer, first Doppler letter for obtaining amplification Number, and the first motion characteristic signal is generated according to the Doppler signal.
Provided with the first A/D converter 131, the first digital filter 132 and the first letter in first processor 13 Number analyzer 133.First A/D converter 131 and the first digital filter 132 are used for the after amplification One Doppler signal carries out analog-to-digital conversion and filtering.First signal analyzer 133 is used for from being changed and filtered The information of reflection measured object motion state feature is extracted in the first Doppler signal afterwards, and by the information of extraction The first motion characteristic signal is generated, the first motion characteristic signal is data signal.
Second inductive head 2 includes the second microwave remote sensor 22, the second amplifier 22 and second processor 23, Second microwave remote sensor 22, the second amplifier 22 and second processor 23 are sequentially connected electrically, second processor 22 electrically connect with central processing unit 3.Second microwave remote sensor 22 is double base microwave remote sensor, and the second microwave is passed Sensor 22 is used to launch frequency electromagnetic waves into elevator and receives the reflection electromagnetic wave being reflected back, and according to transmitting Electromagnetic wave and the reflection electromagnetic wave that is reflected back export and included in the second Doppler signal, the second Doppler signal Two Doppler signals, by calculating the phase difference of two-way Doppler signal, can determine whether out that testee is relative It is proximate to or remote in the displacement of double base microwave remote sensor, therefore double base microwave remote sensor can be realized to handrail The measured object in elevator exit is as being detected.Second amplifier 22 is used for the second Doppler signal of acquisition and will It is exported after amplifying.Second processor 23 is single-chip microcomputer, second Doppler signal for obtaining amplification, And the second motion characteristic signal is generated according to the Doppler signal.
Provided with the second A/D converter 231, the second digital filter 232 and the second letter in second processor 23 Number analyzer 233.Second A/D converter 231 and the second digital filter 232 are used for the after amplification Two Doppler signals carry out analog-to-digital conversion and filtering.Secondary signal analyzer 233 is used for from being changed and filtered The information of reflection measured object operating state feature is extracted in the second Doppler signal afterwards, and by the information of extraction The second motion characteristic signal is generated, the second motion characteristic signal is data signal.
As shown in figure 3, wherein the transmitting terminal of the first microwave remote sensor 11 and the second microwave remote sensor 21 and connecing Receiving end sensing direction is set, and transmitting terminal and receiving terminal are set with level in a fixed angle of altitude so that first is micro- The induction region of the microwave remote sensor 21 of wave sensor 11 and second is upward in an as shown in Figure 3 and fixed angle of altitude Setting, for example the elevation angle be 40 °.
The measured object motion characteristic information data when security incident occurs is pre-stored with central processing unit 3, Fall, push, trample or roll if any personnel and the dangerous play characteristic signal data such as climb, central processing unit 3 will Expressed data are combined in the first motion characteristic signal and second feature signal that obtain has safe thing with working as Therefore measured object motion characteristic information data when occurring is contrasted, if similarity is more than default gate valve value, Judge occur security incident in elevator, central processing unit 3 sends one immediately is used for the stopping of emergent control elevator The instruction code of operation is to handrail elevator controller 4, and handrail elevator controller 4 is got to be stopped immediately after instruction code The operation of handrail elevator;If on the contrary, when similarity is not more than default gate valve value, judging not pacify in elevator Full accident, central processing unit 3 is not responded.Wherein similarity is more than the default gate valve value of default gate valve value The value rule of thumb drawn with experiment, and can be adjusted according to actual installation situation and environment, it is believed that It is set in central processing unit 3.
As shown in figure 4, the real-time detection safeguard protection for the handrail elevator safety guard that the present embodiment is provided Process step it is as follows:
101:Real time emission electromagnetic wave;
First microwave remote sensor 11 and the second microwave remote sensor 21 launch high-frequency electrical to elevator exit region in real time Magnetic wave.
102:Obtain reflection electromagnetic wave and export Doppler signal;
First microwave remote sensor 11 and the second microwave remote sensor 21 obtain what is be each reflected back by measured object in real time Reflection electromagnetic wave, and will each export more than first after the electromagnetic wave of transmitting and the reflection electromagnetic wave being reflected back mixing During general Le signal and the second Doppler signal, the first Doppler signal and the second Doppler signal are respectively two-way The Doppler signal of frequency signal characteristic.
103:Amplify Doppler signal;
First amplifier 12 and the second amplifier 22 are general to more than the first of the output of the first microwave remote sensor 11 respectively The second Doppler signal for strangling signal and the output of the second microwave remote sensor 21 is amplified, and it is dry to remove part Disturb signal.
104:Processing obtains signal characteristic data;
The first A/D converter 131, the first digital filter 132 and the first signal in first processor 13 Analyzer 133 carries out extraction object after analog-to-digital conversion and filtering to the first Doppler signal after amplification and moved successively Make characteristic information, the first signal analyzer 133 moves the information generation first for extracting object motion characteristic information Make characteristic information.Second Doppler signal is equally successively by second A/D converter the 231, second numeral filter The processing of ripple device 232 and secondary signal analyzer 233 obtains the second motion characteristic signal.
105:Judge whether security incident occur;
Central processing unit 3 is by the data phase expressed by the first motion characteristic signal and second feature signal of acquisition Data with reference to expressed by with the pre-stored characteristic signal when security incident occurs are contrasted, and compare it Similarity, judges whether security incident occur according to similarity
106:Send instruction code;
If expressed data work as safety with pre-stored in the first motion characteristic signal and second feature signal The similarity of measured object motion characteristic information data when accident occurs is more than default gate valve value, then judges elevator There is security incident, central processing unit 3 sends one immediately is used for the instruction out of service of emergent control elevator Code gives handrail elevator controller 4;If on the contrary, when similarity is not more than default gate valve value, judged in elevator There is no security incident, central processing unit 3 is not responded.
107:Control handrail elevator out of service.
Handrail elevator controller 4 stops handrail elevator immediately after getting the instruction code of the transmission of central processing unit 3 Operation.
A kind of handrail elevator safety guard is present embodiments provided, because two inductive heads are separately mounted to The both sides of elevator outlet, two inductive heads are from both direction respectively to people in elevator exit region or other objects Motion carry out real-time detection, and by the action detected generation two motion characteristic signals be sent to centre Manage device 3 so that central processing unit 3 can be judged according to the data in two motion characteristic signals be in elevator It is no dangerous (such as occurring falling, push, trample or rolling the dangerous play for climbing improper motion) occur, so that The instruction code expansion dangerous to the prevention out of service of the emergent control elevator of electric life controller 4 is sent, electricity is improved Terraced security performance, and the setting of two double base microwave remote sensors, it is simultaneously dynamic to testee from both direction Make carry out real-time detection, carry out com-parison and analysis by four road Doppler signals of output so that central processing unit 3 It can more accurately judge whether dangerous play occurs, it is ensured that while the present apparatus higher sensitivity, Also reduce the False Rate of device.
Use above specific case is illustrated to the present invention, is only intended to help and is understood the present invention, not To limit the present invention.For those skilled in the art, according to the thought of the present invention, Some simple deductions, deformation can also be made or replaced.

Claims (10)

1. a kind of handrail elevator safety guard, it is characterised in that including:
First inductive head, it is arranged on the side that elevator is exported, and the measured object for sensing elevator exit is moved Make and generate corresponding first motion characteristic signal;
Second inductive head, it is arranged on the opposite side that elevator is exported, the measured object for sensing elevator exit Act and generate corresponding second motion characteristic signal;
And central processing unit, it is controlled with first inductive head, the second inductive head and handrail elevator respectively Device is electrically connected, for obtaining the first motion characteristic signal and the second motion characteristic signal, and according to described First motion characteristic signal and the second motion characteristic signal judge whether security incident occur in elevator, if so, Then sending one is used to control elevator instruction code out of service to give handrail elevator controller.
2. handrail elevator safety guard as claimed in claim 1, it is characterised in that the center The measured object motion characteristic information data when security incident occurs, the centre are pre-stored with processor Reason device by data expressed in the first motion characteristic signal and the second motion characteristic signal be combined with advance The measured object motion characteristic information data when there is security incident generation deposited is contrasted, if similarity is more than Default gate valve value, then judge security incident occur in elevator.
3. handrail elevator safety guard as claimed in claim 2, it is characterised in that
First inductive head includes the first microwave remote sensor, the first amplifier and first processor, described the One microwave remote sensor, the first amplifier and first processor are sequentially connected electrically, the first processor and center Processor is electrically connected;First microwave remote sensor is used for exit field emission frequency electromagnetic waves and reception The reflection electromagnetic wave being reflected back, and the electromagnetic wave according to transmitting and the reflection electromagnetic wave output more than first being reflected back General Le signal;First amplifier is used to export after obtaining first Doppler signal and being amplified; The first processor is used for first Doppler signal for obtaining amplification, and according to the Doppler signal Generate the first motion characteristic signal;
Second inductive head includes the second microwave remote sensor, the second amplifier and second processor, described the Two microwave remote sensors, the second amplifier and second processor are sequentially connected electrically, the second processor and center Processor is electrically connected;Second microwave remote sensor is used for exit field emission frequency electromagnetic waves and reception The reflection electromagnetic wave being reflected back, and the electromagnetic wave according to transmitting and the reflection electromagnetic wave output more than second being reflected back General Le signal;Second amplifier is used to export after obtaining second Doppler signal and being amplified; The second processor is used for second Doppler signal for obtaining amplification, and according to the Doppler signal Generate the second motion characteristic signal.
4. handrail elevator safety guard as claimed in claim 3, it is characterised in that described first Microwave remote sensor and the second microwave remote sensor are double base microwave remote sensor.
5. handrail elevator safety guard as claimed in claim 4, it is characterised in that described first Microwave remote sensor and the second microwave remote sensor are separately mounted to the lower end that handrail elevator exports both sides.
6. handrail elevator safety guard as claimed in claim 5, it is characterised in that
The first A/D converter, the first digital filter and the first signal analysis are provided with the first processor Device, first A/D converter, the first digital filter and the first signal analyzer first post-process described The first motion characteristic signal is obtained after one Doppler signal;
Provided with the second A/D converter, the second digital filter and secondary signal analysis in the second processor Device, second A/D converter, the second digital filter and secondary signal analyzer first post-process described The second motion characteristic signal is obtained after two Doppler signals.
7. handrail elevator safety guard as claimed in claim 6, it is characterised in that described first Signal analyzer extracts the information generation of reflection measured object operating state feature from first Doppler signal First motion characteristic signal;The secondary signal analyzer extracts reflection from second Doppler signal The information of body operating state feature generates the second motion characteristic signal.
8. handrail elevator safety guard as claimed in claim 7, it is characterised in that described first Motion characteristic signal and the second motion characteristic signal are data signal.
9. handrail elevator safety guard as claimed in claim 8, it is characterised in that described first Processor and second processor are single-chip microcomputer.
10. handrail elevator safety guard as claimed in claim 9, it is characterised in that described first Microwave remote sensor and the second microwave remote sensor search coverage are in the default setting of the elevation angle upwards.
CN201610245061.3A 2016-04-19 2016-04-19 A kind of handrail elevator safety guard Pending CN107304024A (en)

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CN201610245061.3A CN107304024A (en) 2016-04-19 2016-04-19 A kind of handrail elevator safety guard

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Application Number Priority Date Filing Date Title
CN201610245061.3A CN107304024A (en) 2016-04-19 2016-04-19 A kind of handrail elevator safety guard

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CN107304024A true CN107304024A (en) 2017-10-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763738A (en) * 2019-01-30 2019-05-17 东莞市桥特电子科技有限公司 A kind of automatically-controlled door
CN111392562A (en) * 2020-03-25 2020-07-10 日立电梯(广州)自动扶梯有限公司 Method and device for determining running speed of escalator, computer equipment and storage medium
CN111685632A (en) * 2020-03-19 2020-09-22 广东蓝水花智能电子有限公司 Handrail elevator cover plate detection method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101456518A (en) * 2007-12-10 2009-06-17 株式会社日立制作所 Safe device and safe control method of passenger conveyer
CN101676188A (en) * 2008-09-17 2010-03-24 株式会社日立制作所 Protection device of escalator
CN103818813A (en) * 2014-03-21 2014-05-28 张金木 Device for detecting accidents in dangerous zones of escalator
CN203838351U (en) * 2014-03-28 2014-09-17 宁波赛福特电子有限公司 Microwave staircase entrance detector
CN205603023U (en) * 2016-04-19 2016-09-28 广东蓝水花智能电子有限公司 Handrail elevator safety arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101456518A (en) * 2007-12-10 2009-06-17 株式会社日立制作所 Safe device and safe control method of passenger conveyer
CN101676188A (en) * 2008-09-17 2010-03-24 株式会社日立制作所 Protection device of escalator
CN103818813A (en) * 2014-03-21 2014-05-28 张金木 Device for detecting accidents in dangerous zones of escalator
CN203838351U (en) * 2014-03-28 2014-09-17 宁波赛福特电子有限公司 Microwave staircase entrance detector
CN205603023U (en) * 2016-04-19 2016-09-28 广东蓝水花智能电子有限公司 Handrail elevator safety arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
杨冠宝: "《基于全景视觉的自动扶梯节能及智能监控系统》", 《中国优秀硕士学位论文全文数据库 信息科技辑》, 15 June 2012 (2012-06-15), pages 7 - 59 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763738A (en) * 2019-01-30 2019-05-17 东莞市桥特电子科技有限公司 A kind of automatically-controlled door
CN111685632A (en) * 2020-03-19 2020-09-22 广东蓝水花智能电子有限公司 Handrail elevator cover plate detection method
CN111685631A (en) * 2020-03-19 2020-09-22 广东蓝水花智能电子有限公司 People flow monitoring method at handrail elevator cover plate
CN111759214A (en) * 2020-03-19 2020-10-13 广东蓝水花智能电子有限公司 Automatic door opening and closing control method
CN111759216A (en) * 2020-03-19 2020-10-13 广东蓝水花智能电子有限公司 Automatic door opening and closing control method
CN111392562A (en) * 2020-03-25 2020-07-10 日立电梯(广州)自动扶梯有限公司 Method and device for determining running speed of escalator, computer equipment and storage medium
CN111392562B (en) * 2020-03-25 2022-03-08 日立电梯(广州)自动扶梯有限公司 Method and device for determining running speed of escalator, computer equipment and storage medium

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