CN106672764A - Monitoring method for closing state of elevator car door through elevator door light curtain - Google Patents
Monitoring method for closing state of elevator car door through elevator door light curtain Download PDFInfo
- Publication number
- CN106672764A CN106672764A CN201510765691.9A CN201510765691A CN106672764A CN 106672764 A CN106672764 A CN 106672764A CN 201510765691 A CN201510765691 A CN 201510765691A CN 106672764 A CN106672764 A CN 106672764A
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Abstract
The invention discloses a monitoring method for the closing state of an elevator car door through an elevator door light curtain. The distance between a transmitter and a receiver of the door light curtain is changed, and the distance change between the transmitter and the receiver and the closing state of the elevator car door are judged according to the reciprocating time of light between the transmitter and the receiver. According to the monitoring method, the functions of the elevator door light curtain are expanded, accidental risks that passengers are subjected to collision injuries by the elevator door when getting in and out of an elevator car due to short connection of a door closing in-place switch are prevented, and the safety of an elevator door area is improved.
Description
Technical field
The present invention relates to a kind of monitoring method of state of elevator, particularly belongs to one kind and uses existing door light proscenia to elevator
The method that the closed mode of gate is monitored.
Background technology
In the concerned countries standard of elevator, clear stipulaties elevator device must install light proscenia, its single function, only
For detecting whether someone or object pass in and out gate to prevent the door during being closed from clashing into.At present, light proscenia is main
Including transmitter and receiver, when elevator cage door is center opening door (i.e. gate to the left and right both sides are opened), light proscenia
Transmitter and receiver are separately mounted on the gate of left and right, when elevator cage door is side opening door (opening in gate a to direction)
When, in transmitter and receiver is arranged on gate, and another is then arranged on corresponding gateway column.
Elevator cage door automatic opening and closing door under the control of electrically driven, when elevator cage door is closed, passes through
Door-closing in-place switch are monitored to the closed mode of elevator cage door.When gate is not completely closed, door-closing in-place switch are
Safety return circuit is off, and now lift car cannot run up and down, and only door-closing in-place switch are in an ON state
When, lift car could run up and down, and this just prevents elevator cage door personnel's inlet/outlet area but lift car meaning when opening
The situation that outer movement is damaged to human body occurs.But personnel sometimes, are maintained in order to the convenient of work can be interim
The door-closing in-place switch of violation short circuit elevator cage door, again because carelessness does not recover door-closing in-place switch after the completion of work
Normal condition, can so cause elevator cage door to move under the car effect of also calling together outside when opening, and take advantage of passing in and out car
Visitor damages.
The content of the invention
The technical problem to be solved is to provide a kind of prison of utilization elevator door light curtain to elevator cage door closed mode
Prosecutor method, can accurately judge whether the closed mode and door-closing in-place switch of elevator cage door occur failing or thinking short circuit
Situation.
To solve above-mentioned technical problem, a kind of monitoring side of the elevator door light curtain that the present invention is provided to elevator cage door closed mode
The distance between method, the transmitter of the door light curtain and receiver change, according to light between transmitter and receiver
Two-way time judge between transmitter and receiver spacing change and elevator cage door closed mode.
In the above-mentioned methods, the transmitter has some luminous tubes, and the receiver has some light-receiving tubes, and launches
The upper end of device is provided with the adjacent light projector pipe in position and a light-receiving tube, and the upper end of receiver is provided with a light target；The elevator system
System is provided with the measurement processor being electrically connected with door light curtain；Measurement processor to door light curtain sends instruction, range sensor meter
The light projection that sends of light projector pipe is calculated on light target and the time of the light-receiving tube of range sensor, the signal of door light curtain is reflected back toward
Process output unit to be compared the two-way time of light and default condition activation threshold value, be equal in advance when the two-way time of light
If condition activation threshold value when, the signal transacting output unit exports cut-off signal to measurement processor, now at detection
Reason device judges that the opening spacing of elevator cage door reaches dangerous spacing and door-closing in-place switch fail or are shorted, at the detection
Reason device sends the instruction of No starting to elevator.Comprise the following steps that：Step one, arranges light in transmitter in door light curtain
The initial value of two-way time and condition activation threshold value and receiver between, wherein initial value for gate completely close the time send out
The time come and gone between emitter and receiver, condition activation threshold value is that gate opening spacing reaches the dangerous spacing time in transmitting
The time come and gone between device and receiver；Step 2, measurement processor monitor door-closing in-place switch state, such as close the door to
Bit switch is off, and goes to step 3, as door-closing in-place switch in an ON state if go to step 4；Step
Three, light projector pipe, light-receiving tube, signal transacting output unit do not work；Step 4, light projector pipe, light-receiving tube and signal transacting
Output unit works, and range sensor calculates the light projection that sends of light projector pipe on light target and is reflected back toward range sensor
The time of light-receiving tube, the signal transacting output unit of door light curtain carries out the two-way time of light and default condition activation threshold value
Relatively, when the two-way time of light default condition activation threshold value is equal to, signal transacting output unit output cut-off signal,
When measurement processor receives the cut-off signal of signal transacting output unit output, the opening spacing for judging elevator cage door reaches
To dangerous spacing and door-closing in-place switch failure or be shorted；The measurement processor sends the instruction of No starting to elevator,
And send early warning signal.
Further, when the time that light comes and goes between transmitter and receiver receives less than default condition activation threshold value
When the magnitude of voltage or current value that at least one light intensity Jing optical-electrical converter for receiving is converted into the light-receiving tube of device is zero, signal
Process output unit and export cut-off signal to measurement processor, now measurement processor judge elevator cage door be accidentally opened and
Door-closing in-place switch fail or are shorted, while measurement processor sends the instruction of No starting to elevator.
Whether the present invention is closed using door light curtain assembly monitor elevator cage door, and judges that the door-closing in-place of elevator is opened
Whether pass fails or by people's short circuit, and passenger when preventing lift car to be in open mode to passing in and out car damages.
Description of the drawings
Fig. 1 is the index path of the present invention；
Fig. 2 is the index path that door light curtain of the present invention is obscured by an object；
Fig. 3 is the block diagram of the present invention；
Fig. 4 is the flow chart of the present invention.
Wherein description of reference numerals is as follows：
1 is the first luminous tube；2 is the first light-receiving tube；3 are transmitting bar；4 is to receive bar；5 is light projector pipe；6 be by
Light pipe；7 is light target.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further detailed explanation with specific embodiment.
The present invention is monitored using elevator door light curtain to elevator cage door closed mode, wherein the transmitter of door light curtain and reception
The distance between device changes, and the two-way time according to light between transmitter and receiver judges transmitter and receiver
Between spacing change and elevator cage door closed mode.
Door light curtain includes transmitter and receiver, and transmitter is some luminous including transmitting bar 3 and on transmitting bar 3
Pipe, receiver includes receiving bar 4 and installed in some light-receiving tubes received on bar 4.The elevator device is provided with detection
Reason device, door-closing in-place switch, wherein measurement processor are electrically connected with respectively with door-closing in-place switch, door light curtain.In this reality
In applying example, the just infrared light that light curtain is sent out.As shown in figure 1, the upper end of transmitting bar 3 is provided with a range sensor, distance
Sensing station can be arranged on apart from light curtain bar bottom 1900mm positions.The range sensor includes that position is adjacent
One light projector pipe 5 and a light-receiving tube 6, receive bar 4 being provided with range sensor isometry position and meet range sensor requirement
Light target 7, such as light target color is dark color.First luminous tube 1 be located at one of all luminous tube the tops and positioned at away from
From the lower section of sensor, the first light-receiving tube 2 is to be located at of all light-receiving tube the tops and positioned at the lower section of light target 7.
Range sensor is sent from light projector pipe 5 by certain frequency test light using time-of-flight method and returns light to light target 7
The two-way time of pipe 6, light two-way time when elevator cage door is completely closed, gate was opened to risk distance as initial value
When light two-way time be condition activation threshold value, the condition activation threshold value can be drawn by laboratory test.
Range sensor tests at regular intervals infrared light two-way time, when light two-way time condition activation threshold value is equal to,
Think that gate is opened to danger zone, enabling size 50mm is regarded as danger zone, now judges that gate has been beaten
Reach dangerous spacing, it is also possible to judge door-closing in-place switch failure or the situation of artificial short circuit occur, so as to prevent elevator from existing
Door runs up and down when opening.Measurement processor is subsequently sending early warning signal to apparatus for controlling elevator.Apparatus for controlling elevator is obtained
Safety measure is performed to after early warning signal.
In order to improve the life-span of range sensor, the use time of range sensor is reduced, the startup of sensor of adjusting the distance is done
Following constraint：
1. the voltage that the light Jing optical-electrical converters that the light-receiving tube of a light curtain receives are converted to is not 0；
2. initial value of the voltage that the light Jing optical-electrical converters that the light-receiving tube of a light curtain receives are converted to from gate when fully closed subtracts
Initiation value is arrived less, when gate is opened, transmitting bar becomes big with distance between tie rods is received, light-receiving tube sensing light weakens, and changes out electricity
Buckling is little, the initial value when voltage that the light Jing optical-electrical converters received in the light-receiving tube of door light curtain are converted to is fully closed from gate
Be reduced to initiation value during this door closing switch signal be switched on；
3. during the time greater than condition activation threshold value that light comes and goes between range sensor and light target 7, range sensor stops
Only use.
As shown in Figure 3, Figure 4, the step of embodiment is monitored is as follows：
Step one, light two-way time of the range sensor of opposite house light curtain imposes a condition trigger value, and condition activation threshold value is door
Round time in risk distance time is opened to, afterwards range sensor is stopped using；
Maximum of the voltage that the light-receiving tube of setting door light curtain is converted to from gate when fully closed is reduced to range sensor startup
Value, the value be initiation value；Generally, when range sensor starts, gate opens spacing and should ensure that no more than dangerous spacing
1/2, when the dangerous spacing that gate is opened is 50mm, the voltage that the light-receiving tube of door light curtain is converted to from gate it is fully closed when
Maximum be reduced to range sensor startup value can be scheduled on before enabling 25mm, i.e., gate open spacing reach 25mm
When range sensor start to start, the voltage that the light that now light-receiving tube is received is converted to is initiation value；
Step 2, if door-closing in-place switch are to disconnect, measurement processor does not just work；If door-closing in-place switch are
Connect, into step 3；
Step 3, when the voltage that the light-receiving tube of door light curtain is converted to for 0 and it is fully closed from gate when maximum be reduced to set
During fixed initiation value, range sensor is started working；
Step 4, range sensor constantly tests at regular intervals light projector pipe and throws into layback sensor after light target after starting
The two-way time of the light of light-receiving tube, when light two-way time condition activation threshold value is equal to, signal transacting output unit sends disconnected
To measurement processor, then range sensor quits work the startup for waiting next time ON signal；
Step 5, measurement processor is received after the cut-off signal of range sensor, judges that door is opened accidentally, in rear supervention
Go out early warning signal to apparatus for controlling elevator.Apparatus for controlling elevator obtains performing safety measure after early warning signal.
In the above-described embodiments, a monitoring condition can also be increased, i.e., the signal when gate opening, door light curtain are blocked
Process the condition that output unit exports cut-off signal.When door-closing in-place switch are to turn on signal, as shown in Fig. 2 in step
In rapid 3, if the magnitude of voltage that is converted to of any one light-receiving tube Jing optical-electrical converters in door light curtain is 0, then can be with
Judge that gate is opened, door light curtain is blocked, now illustrate that gate is accidentally opened and door-closing in-place switch fail or are considered as
Short circuit.Measurement processor sends the instruction of No starting in rear extended meeting to elevator, and provides the warning that prompt door opens danger
Signal.Certainly, in actual use, because the position of the first luminous tube 1 and the first light-receiving tube 2 is higher, and lead to
Often shelter is all located at the middle and lower part of gate, so commonly remaining light-receiving tube Jing photoelectricity in addition to the first light-receiving tube 2 turns
The magnitude of voltage that parallel operation is converted to is 0.
The present invention is described in detail above by specific embodiment, the embodiment is only the preferable of the present invention
Embodiment, it not limits the invention.Without departing from the principles of the present invention, those skilled in the art
The equivalent replacement made and improvement, are regarded as in the technology category protected of the invention.
Claims (4)
1. monitoring method of a kind of elevator door light curtain to elevator cage door closed mode, it is characterised in that the door light curtain
The distance between transmitter and receiver change, and the two-way time according to light between transmitter and receiver judges to send out
The closed mode of spacing change and elevator cage door between emitter and receiver.
2. monitoring method of the elevator door light curtain according to claim 1 to elevator cage door closed mode, its feature exists
In the transmitter has some luminous tubes, and the receiver has some light-receiving tubes, and the upper end of transmitter is provided with one
Range sensor, the range sensor includes the adjacent light projector pipe in position and a light-receiving tube, and the upper end of receiver is provided with
One light target；The elevator device is provided with the measurement processor being electrically connected with door light curtain；
Measurement processor to door light curtain sends instruction, and range sensor calculates light projection that light projector pipe sends on light target and quilt
It is reflected back the time of the light-receiving tube of range sensor, the signal transacting output unit of door light curtain is by two-way time of light and default
Condition activation threshold value be compared, when light two-way time be equal to default condition activation threshold value when, the signal transacting
Output unit exports cut-off signal to measurement processor, and the opening spacing of now measurement processor judgement elevator cage door reaches danger
Dangerous spacing and door-closing in-place switch failure or be shorted, the measurement processor sends No starting to apparatus for controlling elevator
Instruction.
3. monitoring method of the elevator door light curtain according to claim 2 to elevator cage door closed mode, its feature exists
In,
Step one, arranges the light initial value of two-way time and condition firing level between transmitter and receiver in door light curtain
Value, wherein initial value completely close the time that the time comes and goes between transmitter and receiver, condition activation threshold value for gate
The time that spacing reaches the dangerous spacing time and comes and goes between transmitter and receiver is opened for gate；
Step 2, measurement processor monitors the state of door-closing in-place switch, as door-closing in-place switch are off, turns
To step 3, as door-closing in-place switch in an ON state if go to step 4；
Step 3, light projector pipe, light-receiving tube, signal transacting output unit do not work；
Step 4, light projector pipe, light-receiving tube and signal transacting output unit work, range sensor calculates what light projector pipe sent
Light projection on light target and be reflected back toward range sensor light-receiving tube time, the signal transacting output unit of door light curtain will
The two-way time of light and default condition activation threshold value are compared, and when the two-way time of light default condition firing level is equal to
During value, signal transacting output unit output cut-off signal, when measurement processor receives the output of signal transacting output unit
During cut-off signal, judge elevator cage door opening spacing reach dangerous spacing and door-closing in-place switch failure or be shorted；Institute
State measurement processor and send the instruction of No starting to apparatus for controlling elevator, and send early warning signal.
4. monitoring method of the elevator door light curtain according to claim 2 to elevator cage door closed mode, its feature exists
In when the light-receiving tube of time receiver less than default condition activation threshold value that light comes and goes between transmitter and receiver
In at least one magnitude of voltage that be converted into of light intensity Jing optical-electrical converter for receiving or current value when being zero, signal transacting output is single
Unit's output cut-off signal to measurement processor, now measurement processor judge that elevator cage door is accidentally opened and door-closing in-place is opened
Close failure or be shorted, while measurement processor sends the instruction of No starting to apparatus for controlling elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765691.9A CN106672764B (en) | 2015-11-11 | 2015-11-11 | Monitoring method of the elevator door light curtain to elevator cage door closed state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765691.9A CN106672764B (en) | 2015-11-11 | 2015-11-11 | Monitoring method of the elevator door light curtain to elevator cage door closed state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106672764A true CN106672764A (en) | 2017-05-17 |
| CN106672764B CN106672764B (en) | 2018-12-25 |
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ID=58865044
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510765691.9A Active CN106672764B (en) | 2015-11-11 | 2015-11-11 | Monitoring method of the elevator door light curtain to elevator cage door closed state |
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| Country | Link |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500099A (en) * | 2017-09-07 | 2017-12-22 | 宁波赛福特电子有限公司 | A kind of multifunctional lift light curtain |
| CN108059068A (en) * | 2017-12-12 | 2018-05-22 | 日立楼宇技术（广州）有限公司 | Light curtain detection threshold value generation method, device and system |
| CN110240030A (en) * | 2019-01-30 | 2019-09-17 | 王国荣 | A kind of method of hall door door-closing in-place detection |
| CN110697528A (en) * | 2019-09-10 | 2020-01-17 | 宁夏电通物联网科技股份有限公司 | Detection device for detecting opening and closing states of car door based on diffuse reflection, elevator and detection method |
| CN114074888A (en) * | 2020-08-14 | 2022-02-22 | 蒋洋 | Elevator door leaf lower end clearance control mechanism |
| CN114132810A (en) * | 2020-09-04 | 2022-03-04 | 上海三菱电梯有限公司 | Method and system for monitoring running state of elevator and states of elevator components |
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| JP2010100360A (en) * | 2008-10-21 | 2010-05-06 | Mitsubishi Electric Corp | Elevator control device |
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Patent Citations (4)
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| JPH082863A (en) * | 1994-06-16 | 1996-01-09 | Mitsubishi Denki Bill Techno Service Kk | Apparatus for confirming door closing of elevator |
| CN1443703A (en) * | 2002-03-11 | 2003-09-24 | 因温特奥股份公司 | Door state monitor device using three-dimensional sensor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500099A (en) * | 2017-09-07 | 2017-12-22 | 宁波赛福特电子有限公司 | A kind of multifunctional lift light curtain |
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| CN108059068A (en) * | 2017-12-12 | 2018-05-22 | 日立楼宇技术（广州）有限公司 | Light curtain detection threshold value generation method, device and system |
| CN108059068B (en) * | 2017-12-12 | 2019-07-12 | 日立楼宇技术（广州）有限公司 | Light curtain detection threshold value generation method, device and system |
| CN110240030A (en) * | 2019-01-30 | 2019-09-17 | 王国荣 | A kind of method of hall door door-closing in-place detection |
| CN110697528A (en) * | 2019-09-10 | 2020-01-17 | 宁夏电通物联网科技股份有限公司 | Detection device for detecting opening and closing states of car door based on diffuse reflection, elevator and detection method |
| CN114074888A (en) * | 2020-08-14 | 2022-02-22 | 蒋洋 | Elevator door leaf lower end clearance control mechanism |
| CN114132810A (en) * | 2020-09-04 | 2022-03-04 | 上海三菱电梯有限公司 | Method and system for monitoring running state of elevator and states of elevator components |
| CN114132810B (en) * | 2020-09-04 | 2023-09-29 | 上海三菱电梯有限公司 | Method and system for monitoring elevator running state and elevator part state |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106672764B (en) | 2018-12-25 |
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