CN207943754U - Elevator door clearance detecting system based on grating sensor technology - Google Patents
Elevator door clearance detecting system based on grating sensor technology Download PDFInfo
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- CN207943754U CN207943754U CN201820401146.0U CN201820401146U CN207943754U CN 207943754 U CN207943754 U CN 207943754U CN 201820401146 U CN201820401146 U CN 201820401146U CN 207943754 U CN207943754 U CN 207943754U
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- transmitter
- gate
- door
- infrared receiver
- grating sensor
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Abstract
The utility model discloses the elevator door clearance detecting systems based on grating sensor technology, including the first RF transmitter and the first infrared receiver being separately positioned on above and below gate, the first RF transmitter and the first infrared receiver form fan-shaped detection zone；The second RF transmitter and the second infrared receiver are additionally provided between gate and hall door；Gate and hall door are equipped with reflection unit corresponding with the second RF transmitter, and second RF transmitter emits signal with certain angular reflection unit of incidence.The utility model detection has specific aim, and check frequency is small, and can detect the region between gate and hall door.
Description
Technical field
The utility model is related to a kind of elevator light curtain/grating door clearance detecting systems, are based particularly on grating sensor skill
The elevator door clearance detecting system of art.
Background technology
Elevator must have obstacle detection system to being detected at gate when gate and hall door are closed, and prevent personnel
Or article is clamped by gate/hall door, causes hazard to person and property loss.Existing elevator is by plane light curtain mostly to sedan-chair
Door is detected.Planar light curtain structure is that vertical infrared emitting stick is arranged between gate and hall door and receives stick, is passed through
The infrared ray of multiple tracks level forms plane light curtain/grating and carries out detection of obstacles.
This structure firstly there are an apparent problem, detection do not have specific aim.When gate is closed, gate is closed
Vertical region near line is to need the emphasis that detects, however existing detecting system is using horizontal infrared ray, can not
It is effectively increased at the detection weight of vertical direction, this can only be detected by way of the relatively low increase row of sexual valence
Region.Secondly, existing planar light curtain structure is limited to cost there are certain check frequency, be in particular in device height and
In row.Only device height, which includes entire enabling, highly and in the case that row is larger can just have ideal anti-pinch
Effect, otherwise insufficient height or row not enough can all generate check frequency, the elevator door that occurs in actual life folder object
Case mostly be thus caused by.Finally, existing planar light curtain structure can not detect the sundries between gate and hall door.Due to
Only there are one planes for detection range, and between elevator cage door and hall door are the solid space for having certain distance, and plane light curtain is natural
The region other than plane where itself can not be detected, when hand reach it is vertical where light curtain without touching on gate or hall door
Plane, accident will be occurred by closing gate.Just once occurred to accompany sundries between gate and hall door in actual life, and led to electricity
Ladder damages when leaving flat bed.
Therefore, existing elevator door clearance detecting system, which exists, detects no specific aim, check frequency greatly and can not detect
Between gate hall door the problem of region.
Utility model content
The purpose of the utility model is to provide the elevator door clearance detecting systems based on grating sensor technology.This reality
There is specific aim with novel detection, check frequency is small, and can detect the region between gate and hall door.
The technical solution of the utility model：Elevator door clearance detecting system based on grating sensor technology, including setting
The first RF transmitter above gate, the first RF transmitter are arranged in the closed line of gate, the lower section of gate
The first infrared receiver of signal, the first RF transmitter and first are sent out equipped with the first RF transmitter of multiple receptions
Infrared receiver forms fan-shaped detection zone；The second RF transmitter and reception second are additionally provided between gate and hall door
RF transmitter emits the second infrared receiver of signal, the second RF transmitter and the second infrared receiver difference
It is arranged in the both sides of gate；Gate and hall door are equipped with reflection unit corresponding with the second RF transmitter, and described second
RF transmitter emits signal with certain directive reflection unit that enters；First RF transmitter, the second infrared ray
Receiver, the second RF transmitter and the second infrared receiver are connected with the control system of elevator.
In elevator door clearance detecting system above-mentioned based on grating sensor technology, the incidence angle is 15-30 degree.
In elevator door clearance detecting system above-mentioned based on grating sensor technology, first RF transmitter
The harness quantity in 15cm width ranges centered on by gate closed line is not less than 20.
Compared with prior art, the utility model is for focus detection area domain setting transmitting vertical near gate closed line
Device and receiver, form up-small and down-big fan-shaped detection zone with this, and the detection center of gravity of fan-shaped detection zone is just fallen above-mentioned
Focus detection area domain.Meanwhile in the case of identical row, blind area of the fan-shaped detection zone near gate closed line
Much smaller than the hough transform region of existing plane light curtain.Moreover, the utility model makes using hall door and gate as speculum
Roundtrip three-dimensionally detects the foreign matter between hall door and gate to infrared ray therebetween, overcomes existing plane light curtain
The problem of foreign matter between hall door gate crack can not be detected.
Further, second infrared receiver of the utility model is preferably to be in the angle of 15-30 with reflection unit
Degree is incident.In the angular range, infrared ray both will not excessively lead to strength reduction because of order of reflection, will not be because of reflection
Number is very few to cause detection density inadequate, and detection result is preferable.
To sum up, the utility model detection has specific aim, and check frequency is small, and can detect the area between gate and hall door
Domain.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the vertical view schematic diagram of the second RF transmitter.
Reference numeral：1- gates, 2- hall doors, the first RF transmitters of 3-, the first infrared receivers of 4-, 5- second are red
Outside line transmitter, the second infrared receivers of 6-, 7- reflection units.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail, but be not intended as to the utility model limit according to
According to.
Embodiment：Elevator door clearance detecting system based on grating sensor technology is constituted as shown in figure and Fig. 2, including
The first RF transmitter 3 being arranged above gate 1, the first RF transmitter 3 are arranged in the closed line of gate 1, sedan-chair
The lower section of door 1 is equipped with the first infrared receiver 4 that the first RF transmitter 3 of multiple receptions sends out signal, the first infrared ray
Transmitter 3 and the first infrared receiver 4 form fan-shaped detection zone；The second infrared ray hair is additionally provided between gate 1 and hall door 2
Emitter 5 and the second infrared receiver 6 for receiving the second RF transmitter 5 transmitting signal, the second RF transmitter 5 and the
Two infrared receivers 6 are separately positioned on the both sides of gate 1；It is right with the second RF transmitter 5 that gate 1 and hall door 2 are equipped with
The reflection unit 7 answered, second RF transmitter 5 emit signal with certain angular reflection unit 7 of incidence；Described
First RF transmitter 3, the first infrared receiver 6, the second RF transmitter 5 and the second infrared receiver 6 with
The control system of elevator is connected；The incidence angle is 15-30 degree；First RF transmitter 3 is closed with gate 1
The harness quantity in 15cm width ranges centered on zygonema is not less than 20.
The vertical line that two gates or gate are overlapped with doorframe when above-mentioned closed line, that is, gate is closed.Door is separated in
Car, closed line is located at the middle part of lift door frame；For the car of side opening door, closed line is located at doorframe and does not set the one of dodge gate
Time.The quantity of first RF transmitter is unlimited, but to ensure wherein at least one to be mounted on above closed line and (side be opened
Door car is then closed line by the side of dodge gate), and to ensure the first infrared receiver and the first infrared emitting
Device is many-to-one form.
Operation principle：
Elevator occurs folder people or presss from both sides the event of object, has object closing when close to closed line to find out its cause, being gate
Zygonema is neighbouring and elevator is not detected.The vertical area for the about 15-20cm wide that therefore, it is necessary to re-detections centered on closed line
Domain.First RF transmitter 3 and the first infrared receiver 4 of the utility model form harness up and down in the form of one-to-many
Fan-shaped detection zone, the detection center of gravity in the region just falls in closed line.
Existing light curtain not only interfascicular can generate blind area online, can also generate blind area outside harness area.And the first infrared ray
The blind area of transmitter 3 and the first infrared receiver 4 is there is only between harness, and with direction from top to bottom, fan-shaped harness
Gap is smaller.In the case of harness quantity identical as existing light curtain, shape in 15cm width ranges centered on by closed line
At blind area almost can be ignored.
On the other hand, reflection unit 7 of the setting just like infrared reflection film band in gate 1 and hall door 2.As shown in Fig. 2, working as
Gate 1 and hall door 2 are close to when being closed line position, and the second RF transmitter 5 starts, and the infrared beam of transmitting passes through in gate
Roundtrip forms the path for reaching second infrared receiver 6 between 1 and hall door 2, and gate and hall door gap are detected with this
In whether have sundries.
Second RF transmitter 5 is preferably with incident in the angle of 15-30 with reflection unit 7.In the angular range,
Infrared ray both will not excessively lead to strength reduction because of order of reflection, will not lead to detection density not because of order of reflection is very few
Enough, detection result is preferable.Since hall door 2 is parallel with gate 1, the reflection unit 7 above the two is also parallel, is entered
Firing angle need not limit the reflection unit 7 on gate 1 or hall door 2.
To sum up, when the first infrared receiver 4 does not receive signal, elevator cage door 1 and hall door 2 can phase downs and reversed
Opening prevents a folder object；When the second infrared receiver 6 does not receive signal, elevator will not start, and gate 1 and hall door 2 are again
It opens to exclude to be clipped in foreign matter between the two.
Claims (3)
1. the elevator door clearance detecting system based on grating sensor technology, it is characterised in that：Including setting above gate (1)
The first RF transmitter (3), the first RF transmitter (3) be arranged in the closed line of gate (1), under gate (1)
Side is equipped with the first infrared receiver (4) that the first RF transmitter of multiple receptions (3) sends out signal；Gate (1) and hall door
(2) it is additionally provided with the second RF transmitter (5) between and receives the second infrared ray that the second RF transmitter (5) emits signal
Receiver (6), the second RF transmitter (5) and the second infrared receiver (6) are separately positioned on the both sides of gate (1)；Sedan-chair
Door (1) and hall door (2) are equipped with reflection unit (7) corresponding with the second RF transmitter (5), second infrared ray hair
Emitter (5) is in be mutually inclined setting with reflection unit (7)；First RF transmitter (3), the first infrared receiver
(4), the second RF transmitter (5) and the second infrared receiver (6) are connected with the control system of elevator.
2. the elevator door clearance detecting system according to claim 1 based on grating sensor technology, it is characterised in that：Institute
The incident harness for the second RF transmitter (5) stated and the angle of reflection unit (7) are 15-30 degree.
3. the elevator door clearance detecting system according to claim 1 based on grating sensor technology, it is characterised in that：Institute
Harness quantity of the first RF transmitter (3) stated in 15cm width ranges centered on by gate (1) closed line is not small
In 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820401146.0U CN207943754U (en) | 2018-03-23 | 2018-03-23 | Elevator door clearance detecting system based on grating sensor technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820401146.0U CN207943754U (en) | 2018-03-23 | 2018-03-23 | Elevator door clearance detecting system based on grating sensor technology |
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| Publication Number | Publication Date |
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| CN207943754U true CN207943754U (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820401146.0U Active CN207943754U (en) | 2018-03-23 | 2018-03-23 | Elevator door clearance detecting system based on grating sensor technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448290A (en) * | 2018-12-27 | 2019-03-08 | 浙江泰科力合科技有限公司 | A kind of two-in-one infrared emission detection device |
-
2018
- 2018-03-23 CN CN201820401146.0U patent/CN207943754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448290A (en) * | 2018-12-27 | 2019-03-08 | 浙江泰科力合科技有限公司 | A kind of two-in-one infrared emission detection device |
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