CN106672764B - Monitoring method of the elevator door light curtain to elevator cage door closed state - Google Patents
Monitoring method of the elevator door light curtain to elevator cage door closed state Download PDFInfo
- Publication number
- CN106672764B CN106672764B CN201510765691.9A CN201510765691A CN106672764B CN 106672764 B CN106672764 B CN 106672764B CN 201510765691 A CN201510765691 A CN 201510765691A CN 106672764 B CN106672764 B CN 106672764B
- Authority
- CN
- China
- Prior art keywords
- light
- door
- elevator
- receiver
- time
- 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.)
- Active
Links
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses a kind of elevator door light curtains to the monitoring method of elevator cage door closed state, wherein, the distance between the transmitter of the door light curtain and receiver change, and the closed state of the variation of the spacing between transmitter and receiver and elevator cage door is judged according to two-way time of the light between transmitter and receiver.The present invention expands the function of elevator door light curtain, prevents from being shorted due to door-closing in-place switch and passenger is caused to enter and leave the emergency risk wounded by elevator door, improve the safety of elevator door zone.
Description
Technical field
The present invention relates to a kind of monitoring methods of state of elevator, particularly belong to a kind of existing door light curtain device of use to electricity
The method that the closed state of terraced gate is monitored.
Background technique
In the concerned countries standard of elevator, clear stipulaties elevator device must install light curtain device, have a single function, only
For detecting whether there is people or object disengaging gate to prevent the door during being closed from hitting.Currently, light curtain device mainly wraps
Transmitter and receiver are included, when elevator cage door is center opening door (i.e. gate to the left and right opens by two sides), the transmitter of light curtain device
It is separately mounted on the gate of left and right with receiver, when elevator cage door is side opening door (gate is opened to a direction), transmitter
It is mounted on gate with one in receiver, another is then mounted on corresponding entrance column.
Elevator cage door automatic opening and closing door under the control of electrically driven leads to when elevator cage door is in close state
Door-closing in-place switch are crossed to be monitored the closed state of elevator cage door.When gate does not completely close, door-closing in-place switch are
Safety return circuit is in an off state, and lift car can not be run up and down at this time, only door-closing in-place switch in an ON state when,
Lift car could be run up and down, this just prevents elevator cage door personnel's inlet/outlet area but accidental movement of elevator cage when opening
The case where causing harm to the human body.But sometimes, maintenance personnel can be temporarily shorted in violation of rules and regulations for facilitating for work
The door-closing in-place switch of elevator cage door, again since door-closing in-place switch are not restored normal condition by carelessness after the completion of work,
It will lead to elevator cage door in this way to move under carriage can also call effect together outside in opening, the passenger of disengaging carriage damaged.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of using elevator door light curtain to elevator cage door closed state
Whether monitoring method can occur failing or think to be shorted with the closed state of accurate judgement elevator cage door and door-closing in-place switch
The case where.
In order to solve the above technical problems, a kind of monitoring of the elevator door light curtain provided by the invention to elevator cage door closed state
Method, the transmitter of the door light curtain have several luminous tubes, and the receiver of the door light curtain has several light-receiving tubes, and emits
The upper end of device is equipped with a range sensor, and the range sensor includes the adjacent light projector pipe and a light-receiving tube in position, receives
The upper end of device is equipped with a light target；Elevator device is equipped with the measurement processor being electrically connected with door light curtain；
Measurement processor is issued to door light curtain and is instructed, and the distance between transmitter and receiver change, detection processing
Device judges the variation of the spacing between transmitter and receiver and electricity according to two-way time of the light between transmitter and receiver
The closed state of terraced gate, and range sensor calculates in the light projection to light target that light projector pipe issues and is reflected back toward Distance-sensing
The time of the light-receiving tube of device, the signal processing output unit of door light curtain by the two-way time of light and preset condition activation threshold value into
Row compares, and when the two-way time of light being equal to preset condition activation threshold value, the signal processing output unit output disconnects letter
Number to measurement processor, measurement processor determines that the opening spacing of elevator cage door reaches dangerous spacing and door-closing in-place switch at this time
It fails or is shorted, the measurement processor issues the instruction of No starting to elevator control system.Specific step is as follows: step
One, the light initial value of two-way time and condition activation threshold value between transmitter and receiver are set in door light curtain, wherein just
Initial value is that gate completely closes the time round-trip time, condition activation threshold value are between gate is opened between transmitter and receiver
Away from reaching round-trip time between transmitter and receiver in dangerous spacing time；Step 2, measurement processor monitoring, which is closed the door, arrives
The state of bit switch goes to step 3 if door-closing in-place switch are in an off state, and connects shape as door-closing in-place switch are in
State then goes to step 4；Step 3, light projector pipe, light-receiving tube, signal processing output unit do not work；Step 4, light projector pipe, light
Pipe and signal processing output unit work, range sensor calculate light projector pipe issue light projection to light target on and be reflected back toward away from
The signal processing output unit of the time of light-receiving tube from sensor, door light curtain trigger the two-way time of light and preset condition
Threshold value is compared, and when the two-way time of light being equal to preset condition activation threshold value, the output of signal processing output unit is disconnected
Signal, when measurement processor receives the cut-off signal of signal processing output unit output, between the opening for determining elevator cage door
Away from reach dangerous spacing and door-closing in-place switch failure or be shorted；The measurement processor issues the finger of No starting to elevator
It enables, and issues warning signal.
Further, when round-trip time is less than preset condition activation threshold value and connects light between transmitter and receiver
When the voltage value or current value that at least one light intensity received is converted into through photoelectric converter in the light-receiving tube of receipts device are zero, signal
It handles output unit and exports cut-off signal to measurement processor, measurement processor determines that elevator cage door is accidentally opened and closes at this time
The failure of door location switch is shorted, while measurement processor issues the instruction of No starting to elevator.
Whether the present invention is in close state using door light curtain assembly monitor elevator cage door, and judges the door-closing in-place of elevator
Whether switch fails or is shorted by people, prevents lift car from damaging in the open state to the passenger of disengaging carriage.
Detailed description of the invention
Fig. 1 is index path of the invention；
Fig. 2 is the index path that door light curtain of the present invention is obscured by an object；
Fig. 3 is block diagram of the invention；
Fig. 4 is flow chart of the invention.
Wherein the reference numerals are as follows:
1 is the first luminous tube；2 be the first light-receiving tube；3 be launch rod；4 be to receive bar；5 be light projector pipe；6 be light-receiving tube；7
For light target.
Specific embodiment
Present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
The present invention is monitored elevator cage door closed state using elevator door light curtain, wherein the transmitter of door light curtain with connect
It receives the distance between device to change, transmitter and receiver is judged according to two-way time of the light between transmitter and receiver
Between spacing variation and elevator cage door closed state.
Door light curtain includes transmitter and receiver, and transmitter includes launch rod 3 and is mounted on several luminous in launch rod 3
Pipe, receiver include receiving bar 4 and being mounted on several light-receiving tubes received on bar 4.The elevator device be equipped with measurement processor,
Door-closing in-place switch, wherein measurement processor is electrically connected with door-closing in-place switch, door light curtain respectively.In the present embodiment, light
The light of curtain hair is infrared light.As shown in Figure 1, the upper end of launch rod 3 is equipped with a range sensor, range sensor position can be set
It sets apart from the light curtain bar bottom end position 1900mm.The range sensor includes the adjacent light projector pipe 5 and a light-receiving tube in position
6, receive bar 4 and be equipped with the light target 7 for meeting range sensor requirement with range sensor isometry position, if light target color is deep
Color.First luminous tube 1 is one positioned at all luminous tube the tops and the lower section for being located at range sensor, the first light-receiving tube 2
It is one positioned at all light-receiving tube the tops and the lower section for being located at light target 7.
Range sensor using time-of-flight method by certain frequency test light from light projector pipe 5 issue to return after light target 7 by
The two-way time of light pipe 6, light two-way time when elevator cage door completely closes as initial value, when gate is opened to risk distance
Light two-way time be condition activation threshold value, which can be obtained by laboratory test.
Range sensor tests infrared light two-way time at regular intervals, is equal to condition activation threshold value when light two-way time
When, it is believed that gate is opened to danger zone, and enabling size 50mm is regarded as danger zone, judges that gate has already turned at this time
To dangerous spacing, it also may determine that door-closing in-place switch failure or the case where artificial short circuit occur, to prevent elevator from beating in door
It is run up and down when opening.Measurement processor is issued warning signal subsequent to elevator control system.Elevator control system obtains early warning
Safety measure is executed after signal.
In order to improve the service life of range sensor, that reduces range sensor uses time, the starting for sensor of adjusting the distance
Do following constraint:
1. the light that the light-receiving tube of light curtain receives is not 0 through the voltage that photoelectric converter is converted to；
2. initial value of the voltage that the light that the light-receiving tube of light curtain receives is converted to through photoelectric converter from gate when fully closed
It is reduced to initiation value, when gate is opened, launch rod and receives distance between tie rods and becomes larger, light-receiving tube, which incudes light, to be weakened, and voltage is converted out
Become smaller, the initial value when the voltage that the light that the light-receiving tube of door light curtain receives is converted to through photoelectric converter is fully closed from gate is reduced
To initiation value during this door closing switch signal be switched on；
3. range sensor stops when light time greater than condition activation threshold value round-trip between range sensor and light target 7
Only use.
As shown in Figure 3, Figure 4, the step of which is monitored is as follows:
Step 1, the light two-way time setting condition trigger value of the range sensor of light curtain, condition activation threshold value are on the door
Door is opened to the round-trip time in risk distance time, and range sensor is stopped using later；
The voltage that the light-receiving tube of setting door light curtain is converted to is reduced to range sensor from maximum value of gate when fully closed and opens
Dynamic value, the value are initiation value；In general, gate is opened spacing and be should ensure that no more than dangerous spacing when range sensor starts
1/2, when the dangerous spacing that gate is opened is 50mm, maximum of the voltage that the light-receiving tube of door light curtain is converted to from gate when fully closed
The value that value is reduced to range sensor starting can be scheduled on before enabling 25mm, i.e., gate opens Distance-sensing when spacing reaches 25mm
Device starts to start, and the voltage that the light that light-receiving tube receives at this time 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
It connects, enters step three；
Step 3, the maximum value when the voltage that the light-receiving tube of door light curtain is converted to is not 0 and is fully closed from gate are reduced to
When the initiation value of setting, range sensor is started to work；
Step 4, layback senses after constantly test light projector pipe throws into light target at regular intervals after range sensor starting
The two-way time of the light of device light-receiving tube, when light two-way time being equal to condition activation threshold value, signal processing output unit issues disconnected
ON signal is to measurement processor, and then range sensor stops working the starting waited next time；
Step 5 after measurement processor receives the cut-off signal of range sensor, judges that door is opened accidentally, in rear supervention
Pre-warning signal is to elevator control system out.Elevator control system executes safety measure after obtaining pre-warning signal.
In the above-described embodiments, a monitoring condition can also be increased, i.e. the signal when gate is opened, door light curtain is blocked
Handle the condition of output unit output cut-off signal.When door-closing in-place switch are to turn on signal, as shown in Fig. 2, in step 3
In, if the voltage value that any one of door light curtain light-receiving tube is converted to through photoelectric converter is 0, it may determine that gate
Opening, door light curtain are blocked, and illustrate that gate is accidentally opened and door-closing in-place switch fail or are considered being shorted at this time.At detection
It manages device and issues the instruction of No starting to elevator in rear extended meeting, and provide prompt door and open dangerous alarm signal.Certainly, in reality
In the use process of border, since the position of the first luminous tube 1 and the first light-receiving tube 2 is higher, and usually shelter is all located at gate
Middle and lower part, so the voltage value that commonly remaining light-receiving tube in addition to the first light-receiving tube 2 is converted to through photoelectric converter is 0.
The present invention has been described in detail through specific embodiments, the embodiment be only it is of the invention compared with
Good embodiment not limits the invention.Without departing from the principles of the present invention, those skilled in the art does
Equivalent replacement and improvement out are regarded as in the technology scope that the present invention is protected.
Claims (3)
1. a kind of elevator door light curtain is to the monitoring method of elevator cage door closed state, which is characterized in that the transmitting of the door light curtain
Device has several luminous tubes, and the receiver of the door light curtain has several light-receiving tubes, and the upper end of transmitter is equipped with a distance and passes
Sensor, the range sensor include the adjacent light projector pipe and a light-receiving tube in position, and the upper end of receiver is equipped with a light target；Electricity
Terraced system is equipped with the measurement processor being electrically connected with door light curtain；
Measurement processor is issued to door light curtain and is instructed, and the distance between transmitter and receiver change, measurement processor root
The variation of the spacing between transmitter and receiver and elevator car are judged according to two-way time of the light between transmitter and receiver
The closed state of door, and range sensor calculates in the light projection to light target that light projector pipe issues and is reflected back toward range sensor
The signal processing output unit of the time of light-receiving tube, door light curtain compare the two-way time of light and preset condition activation threshold value
Compared with when the two-way time of light being equal to preset condition activation threshold value, the signal processing output unit output cut-off signal is extremely
Measurement processor, measurement processor determines that the opening spacing of elevator cage door reaches dangerous spacing and door-closing in-place switch fail at this time
Or be shorted, the measurement processor issues the instruction of No starting to elevator control system.
2. elevator door light curtain according to claim 1 is to the monitoring method of elevator cage door closed state, which is characterized in that
The light initial value of two-way time and condition firing level between transmitter and receiver is arranged in step 1 in door light curtain
Value, wherein initial value is that gate completely closes the time round-trip time, condition activation threshold value are between transmitter and receiver
Gate opens spacing and reaches round-trip time between transmitter and receiver in dangerous spacing time；
The state of step 2, measurement processor monitoring door-closing in-place switch is gone to if door-closing in-place switch are in an off state
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 processing output unit do not work；
Step 4, light projector pipe, light-receiving tube and the work of signal processing output unit, range sensor calculate the light that light projector pipe issues and throw
It is mapped on light target and is reflected back toward the time of the light-receiving tube of range sensor, the signal processing output unit of door light curtain is by the past of light
It returns the time and preset condition activation threshold value is compared, when the two-way time of light being equal to preset condition activation threshold value, letter
Number processing output unit export cut-off signal, when measurement processor receive signal processing output unit output cut-off signal
When, determine that the opening spacing of elevator cage door reaches dangerous spacing and door-closing in-place switch fail or are shorted；The detection processing
Device issues the instruction of No starting to elevator control system, and issues warning signal.
3. elevator door light curtain according to claim 1 is to the monitoring method of elevator cage door closed state, which is characterized in that when
Light between transmitter and receiver round-trip time be less than preset condition activation threshold value and in the light-receiving tube of receiver at least
When the voltage value or current value that the light intensity of one receiving is converted into through photoelectric converter are zero, the output of signal processing output unit is disconnected
ON signal to measurement processor, at this time measurement processor determine elevator cage door be accidentally opened and door-closing in-place switch failure or by
It is shorted, while measurement processor issues the instruction of No starting to elevator control system.
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 CN106672764A (en) | 2017-05-17 |
| CN106672764B true CN106672764B (en) | 2018-12-25 |
Family
ID=58865044
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672764B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500099B (en) * | 2017-09-07 | 2021-07-20 | 宁波赛福特电子有限公司 | Multifunctional elevator light curtain |
| 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 |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443703A (en) * | 2002-03-11 | 2003-09-24 | 因温特奥股份公司 | Door state monitor device using three-dimensional sensor |
| JP2010100360A (en) * | 2008-10-21 | 2010-05-06 | Mitsubishi Electric Corp | Elevator control device |
| CN103434906A (en) * | 2013-08-06 | 2013-12-11 | 毛振刚 | Elevator safety monitoring alarm system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH082863A (en) * | 1994-06-16 | 1996-01-09 | Mitsubishi Denki Bill Techno Service Kk | Apparatus for confirming door closing of elevator |
-
2015
- 2015-11-11 CN CN201510765691.9A patent/CN106672764B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443703A (en) * | 2002-03-11 | 2003-09-24 | 因温特奥股份公司 | Door state monitor device using three-dimensional sensor |
| JP2010100360A (en) * | 2008-10-21 | 2010-05-06 | Mitsubishi Electric Corp | Elevator control device |
| CN103434906A (en) * | 2013-08-06 | 2013-12-11 | 毛振刚 | Elevator safety monitoring alarm system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106672764A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106672764B (en) | Monitoring method of the elevator door light curtain to elevator cage door closed state | |
| CN106672763B (en) | Monitoring method of the elevator door light curtain to elevator cage door closed state | |
| EP3351500A1 (en) | Multi-functional elevator light curtain | |
| CN105026300B (en) | Elevator, monitoring move the method that order is sent in the light curtain of the opening of door, elevator | |
| CN105775946B (en) | A kind of apparatus for controlling elevator and method | |
| CN106969715B (en) | Container vehicle inspection system | |
| CN102085990A (en) | Intelligent warning system for abnormal opening of lift door and safety detecting method thereof | |
| CN107176532B (en) | The means of communication and elevator car door system control method of elevator car door system controller and intelligent door light curtain | |
| CN105712144A (en) | Detection device for hoistway door lock and car door lock of elevator | |
| CN202704775U (en) | Automatic recognition system for short circuiting of door lock of elevator | |
| CN107313417A (en) | A kind of ship lock automatic control system and control method | |
| CN103373660A (en) | Elevator anti-pinch device | |
| CN204508485U (en) | A kind of hoistway door door lock detecting device | |
| CN106842353A (en) | A kind of many light curtain infrared sensing devices and its intelligent control method | |
| KR101614861B1 (en) | Platform safety scaffolding and an electric train signal control system | |
| CN110027953A (en) | A kind of elevator and method of automatic help function | |
| JP5380819B2 (en) | Elevator door control device | |
| CN107814285A (en) | A kind of control device and method for preventing accidental movement of elevator cage | |
| CN108083075A (en) | A kind of escalator emergency stop device | |
| CN106289361B (en) | The detection method of sensor reliability and its certainly mobile processing unit and system | |
| US11450198B2 (en) | Manual call point | |
| CN210841329U (en) | Intelligent rat-proof door system based on multi-sensor fusion | |
| CN210313072U (en) | Intelligent people-placing elevator with door signal malfunction detection device | |
| CN107235458A (en) | A kind of detection means and detection method | |
| CN207367325U (en) | A kind of energy saving Intelligent fire-fighting evacuation indication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |