CN108439114A - A kind of early warning detection device of elevator door abnormal opening state - Google Patents

A kind of early warning detection device of elevator door abnormal opening state Download PDF

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Publication number
CN108439114A
CN108439114A CN201810331339.8A CN201810331339A CN108439114A CN 108439114 A CN108439114 A CN 108439114A CN 201810331339 A CN201810331339 A CN 201810331339A CN 108439114 A CN108439114 A CN 108439114A
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CN
China
Prior art keywords
signal
door
elevator
judgment
early warning
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Pending
Application number
CN201810331339.8A
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Chinese (zh)
Inventor
吴燕雄
陈波
陈一波
梁有民
戴亮丰
冉雪云
苏和谐
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Wuhan Wan Xi Intelligent Technology Co Ltd
Original Assignee
Wuhan Wan Xi Intelligent Technology 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.)
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Publication date
Application filed by Wuhan Wan Xi Intelligent Technology Co Ltd filed Critical Wuhan Wan Xi Intelligent Technology Co Ltd
Priority to CN201810331339.8A priority Critical patent/CN108439114A/en
Publication of CN108439114A publication Critical patent/CN108439114A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for

Abstract

The present invention relates to a kind of early warning detection devices of elevator door abnormal opening state, belong to elevator detection field.The device includes sound radar range unit, acceleration transducer, signal receiver, signal judgment means and signal projector, and distance signal is sent to signal receiver by sound radar range unit for measuring the distance between two elevator door leafs;Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver;The distance signal received and acceleration signal are sent to signal judgment means by signal receiver, and signal judgment means judge whether early warning, and are sent the pre-warning signal of generation by signal projector.The present invention can accurately detect elevator door abnormal opening state, reduce interference, and of low cost, and easy to use, precision is accurate, be conducive to promote.

Description

A kind of early warning detection device of elevator door abnormal opening state
Technical field
The invention belongs to elevator detection fields, are related to a kind of early warning detection device of elevator door abnormal opening state.
Background technology
Elevator is as special equipment, and the safety of operation and the safety of passenger are closely bound up, each elevator safety specification It is all distinctly claimed and elevator cage door, hall door lock is sealed in into safety return circuit, to avoid harm is sheared.However, a large amount of in recent years Occur artificially to open hall door and the unexpected accident for crashing into hoistway, the tragedy of personal injury is caused constantly to occur.For this purpose, elevator row Occur the detection alarm and prompt technology that many non-leveling zone hall doors are opened accidentally in the industry.Such as a kind of Chinese patent " elevator hall Detection device when the improper opening of door " (patent No. 01217409.2) discloses a kind of safety detection device.The device is special On the basis of profit " detection device and detection method when layer door where non-lift car is opened " (application number 00112131.6), Three lead magnetic control change-over switch CKZ are increased in door pocket position, to realize the judgement to the floor position of opened hall door, with reality The present layer sends out alarm.Its realization method is, using in parallel with two magnetic switch being arranged in hoistway in hall door, works as elevator At this layer, CK is attracted, and switch CKZ is shorted, and is not alarmed;When elevator is not at this layer, CK and CKZ are disconnected, and CKZ's draws Line also has output, you can judgement elevator is not in the layer and layer door by abnormal opening, the warning device action at this layer place, prompt personnel It not approach.But it has the following problems:Though 1) magnetic switch and permanent magnet are actionable in certain identification range, in well The each layer in road only installs a switch, and when installation site fixation, for having for the elevator of advance door opening function, hoistway Switch may be attracted also, and hall door has been opened, and false alarm is caused;When elevator has story-leveling function again, hoistway door is opened, And car can due to passenger comes in and goes out shift position, it is very high that two magnetic switch act inconsistent possibility, therefore this mode is real Border operates unreliable.2) device can not record the information of hall door abnormal opening, alarm and disappear after surprisingly opening the door and restoring, Cannot be communicated with elevator control system, security risk may or it is existing, be also unfavorable for maintenance staff to malfunction elimination.Again For example Chinese patent " safety detection device and its detection method of door of elevator waiting hall " (publication number CN101264839A) is announced A kind of device of the improper enabling of detection layers door, is fitted in each floor at the stop signal that can handle serial signal Device is managed, whether is opened using the mechanical switch detection layers door installed at layer door, by open layer door state signal serially to lead to The mode of letter is passed to electric life controller.The interior exclusive program of electric life controller, by the stop signal and elevator car position of enabling Or relevant information comparison, obtain whether belong to the non-landing stop of car, and layer door can effectively improve electricity by abnormal opening Terraced safety utilizes the door area identification signal of elevator itself, when avoiding advance door opening or again flat bed, two groups of purely mechanic switches The identification delay easily caused and false alarm.The method has the following disadvantages:1) it is completely dependent on electric life controller, to obtain car position It sets and judges, and in elevator when powering off car slipping, often cause floor in electric life controller not to be inconsistent now with practical floor As at this point, there are very big security risks for the device;2) when elevator power failure or maintenance power-off, which is also that can not play work With, and the probability that hall door is artificially opened at this time is prodigious, and accident also easily occurs;3) the invention is not depicted in judgement hall door Specific alarming method after abnormal opening only records in elevator interior, can not play the work of the warning personnel hall door beyond this point With;4) invention requires that a stop signal processing being at least made of CPU, serial communication controller etc. is all arranged in each layer Device, this will greatly increase cost.Chinese patent " Intelligent warning system for abnormal opening of hoistway door and its safety detection for another example Method " (application publication number CN102085990A) discloses a kind of new hall door abnormal opening detection and alarm method, utilizes It is translated mounted on hall door infrared sensor, car infrared sensor and external output processing circuit, central processing unit, floor address Code circuit, wireless radio transmission circuit, serial communication interface circuit and alarm drive circuit composition.Realization method is that hall door is red Whether outside line sensor detection hoistway door is opened, and car infrared sensor detects car whether in this floor, when car does not exist When this floor and hall door are opened, after central processing unit is judged, signal is sent out by wireless radio frequency circuit or serial circuit, And warning circuit is driven, it can realize in hall door abnormal opening and the signal of alarm and floor where exporting.The invention There are following deficiencies:1) hall door infrared sensor and car identification sensor, cost is all arranged in each layer in the patent requirements It is very high, while installation and debugging difficulty is higher;2) infrared sensor is used for a long time it is found that it is easy to be interfered by visible light, Especially the outer infrared sensor of hall door, the patent do not describe infrared sensor installation position, to identify the unlatching of hall door, must yet Sensor is blocked when can so be passed in and out by passenger;Car infrared sensor identifies car position because being arranged in hoistway, It is easy to be covered by hoistway dust, which is easily judged by accident;3) when elevator flat bed and when advance door opening again, which can not also keep away Exempt from two infrared sensor action inconsistence problems, false alarm easily occurs.
Invention content
In view of this, the purpose of the present invention is to provide a kind of early warning detection device of elevator door abnormal opening state, needle The case where elevator door abnormal opening, is detected and early warning.
In order to achieve the above objectives, the present invention provides the following technical solutions:
A kind of early warning detection device of elevator door abnormal opening state, the device include sound radar range unit, accelerate Sensor, signal receiver, signal judgment means and signal projector are spent,
The sound radar range unit is electrically connected with signal receiver respectively with acceleration transducer, signal receiver with Signal judgment means and signal projector series connection;
Distance signal is sent to signal by sound radar range unit for measuring the distance between two elevator door leafs Receiver;Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver;Letter The distance signal received and acceleration signal are sent to signal judgment means by number receiver, and signal judgment means judge whether pre- It is alert, and sent the pre-warning signal of generation by signal projector.
Further, the signal judgment means judge whether that early warning is specially:
As door leaf distance s > door leaf normal maximum distances smax, or work as door leaf speed of service v > threshold speeds ε and s > The normal minimum range s of door leafminIn the case of, the handling result signal u=1 of signal judgment means, signal projector sends out letter Number keep elevator out of service, and sends out alarm;In addition to both of these case, the handling result signal u=0 of signal judgment means, letter Number transmitter does not send out order;It is expressed as:
Further, the normal minimum range s of the door leafminTake 2cm, door leaf normal maximum distance smaxTake 10cm.
The beneficial effects of the present invention are:The present invention can accurately detect elevator door abnormal opening state, reduce interference, and Of low cost, easy to use, precision is accurate, is conducive to promote.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out Explanation:
Fig. 1 is schematic structural view of the invention;
Fig. 2 is scheme of installation of the present invention;
Fig. 3 is that signal judgment means judge schematic diagram.
Reference numeral:1- sound radar range units, 2- acceleration transducers, 3- signal receivers, 4- signals judge dress It sets, 5- signal projectors, 6- electric life controllers, 7- elevator door leafs.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
As shown in Figure 1 and Figure 2, a kind of early warning detection device of elevator door abnormal opening state, which includes sound radar Range unit 1, acceleration transducer 2, signal receiver 3, signal judgment means 4 and signal projector 5,
Sound radar range unit 1 is electrically connected with signal receiver 3 respectively with acceleration transducer 2, signal receiver 3 with Signal judgment means 4 and signal projector 5 are connected;
Distance signal is sent to letter by sound radar range unit 1 for measuring the distance between two elevator door leafs Number receiver 3;Acceleration transducer 2 is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal and is received Device 3;The distance signal received and acceleration signal are sent to signal judgment means 4, signal judgment means 4 by signal receiver 3 Judge whether early warning, and the pre-warning signal of generation is sent to electric life controller 6 by signal projector 5.
Abnormality refers to that elevator itself does not control door opening, but the case where door is opened by force by external force, also It is to say, elevator is detected in the case of not sending enabling signal.
As shown in figure 3, working as door leaf distance s > door leaf normal maximum distances smax, or work as door leaf speed of service v > speed Threshold epsilon and the normal minimum range s of s > door leafsminIn the case of, the handling result signal u=1 of signal judgment means 4, signal hair Emitter 5, which sends out signal, keeps elevator out of service, and sends out alarm;In addition to both of these case, the processing knot of signal judgment means 4 Fruit signal u=0, signal projector 5 do not send out order;It is expressed as:
The normal minimum range s of door leafminTake 2cm, door leaf normal maximum distance smaxTake 10cm.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be Various changes are made to it in form and in details, without departing from claims of the present invention limited range.

Claims (3)

1. a kind of early warning detection device of elevator door abnormal opening state, it is characterised in that:The device includes sound radar ranging Device, acceleration transducer, signal receiver, signal judgment means and signal projector,
The sound radar range unit is electrically connected with signal receiver respectively with acceleration transducer, signal receiver and signal Judgment means and signal projector series connection;
Distance signal is sent to signal and received by sound radar range unit for measuring the distance between two elevator door leafs Device;Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver;Signal connects It receives device and the distance signal received and acceleration signal is sent to signal judgment means, signal judgment means judge whether early warning, And the pre-warning signal of generation is sent by signal projector.
2. a kind of early warning detection device of elevator door abnormal opening state according to claim 1, it is characterised in that:It is described Signal judgment means judge whether that early warning is specially:
As door leaf distance s > door leaf normal maximum distances smax, or work as door leaf speed of service v > threshold speeds ε and s > door leafs Normal minimum range sminIn the case of, the handling result signal u=1 of signal judgment means, signal projector, which sends out signal, to be made Elevator is out of service, and sends out alarm;In addition to both of these case, the handling result signal u=0 of signal judgment means, signal hair Emitter does not send out order;It is expressed as:
3. a kind of early warning detection device of elevator door abnormal opening state according to claim 2, it is characterised in that:It is described The normal minimum range s of door leafminTake 2cm, door leaf normal maximum distance smaxTake 10cm.
CN201810331339.8A 2018-04-13 2018-04-13 A kind of early warning detection device of elevator door abnormal opening state Pending CN108439114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810331339.8A CN108439114A (en) 2018-04-13 2018-04-13 A kind of early warning detection device of elevator door abnormal opening state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810331339.8A CN108439114A (en) 2018-04-13 2018-04-13 A kind of early warning detection device of elevator door abnormal opening state

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Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109335907A (en) * 2018-09-18 2019-02-15 日立楼宇技术(广州)有限公司 Detection method, device, computer equipment and the storage medium of abnormal elevator
CN109896386A (en) * 2019-03-08 2019-06-18 浙江新再灵科技股份有限公司 A kind of detection method and system that the elevator door based on computer vision technique switchs repeatedly
CN110589647A (en) * 2019-08-13 2019-12-20 福建工程学院 Method for real-time fault detection and prediction of elevator door through monitoring
CN110713087A (en) * 2019-10-21 2020-01-21 北京猎户星空科技有限公司 Elevator door state detection method and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109335907A (en) * 2018-09-18 2019-02-15 日立楼宇技术(广州)有限公司 Detection method, device, computer equipment and the storage medium of abnormal elevator
CN109335907B (en) * 2018-09-18 2020-12-29 日立楼宇技术(广州)有限公司 Elevator abnormity detection method and device, computer equipment and storage medium
CN109896386A (en) * 2019-03-08 2019-06-18 浙江新再灵科技股份有限公司 A kind of detection method and system that the elevator door based on computer vision technique switchs repeatedly
CN109896386B (en) * 2019-03-08 2020-12-01 浙江新再灵科技股份有限公司 Method and system for detecting repeated opening and closing of elevator door based on computer vision technology
CN110589647A (en) * 2019-08-13 2019-12-20 福建工程学院 Method for real-time fault detection and prediction of elevator door through monitoring
CN110713087A (en) * 2019-10-21 2020-01-21 北京猎户星空科技有限公司 Elevator door state detection method and device

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Inventor after: Wu Yanxiong

Inventor after: Chen Yibo

Inventor after: Liang Youmin

Inventor after: Dai Liangfeng

Inventor after: Ran Xueyun

Inventor after: Su Hexie

Inventor after: Zhao Houmei

Inventor after: Peng Siwei

Inventor after: Chen Daijun

Inventor before: Wu Yanxiong

Inventor before: Chen Yibo

Inventor before: Liang Youmin

Inventor before: Dai Liangfeng

Inventor before: Ran Xueyun

Inventor before: Su Hexie