CN202429845U - Clamping and contacting prevention video light curtain system for elevator - Google Patents
Clamping and contacting prevention video light curtain system for elevator Download PDFInfo
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- CN202429845U CN202429845U CN 201220005088 CN201220005088U CN202429845U CN 202429845 U CN202429845 U CN 202429845U CN 201220005088 CN201220005088 CN 201220005088 CN 201220005088 U CN201220005088 U CN 201220005088U CN 202429845 U CN202429845 U CN 202429845U
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- elevator
- light curtain
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- video light
- door
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Abstract
The utility model discloses a clamping and contacting prevention video light curtain system for an elevator. The system comprises a camera which is connected with a video light curtain unit which can perform clamping and contacting prevention control according to the image information acquired by the camera; the camera is positioned in a cage of the elevator and near the top of the side of a cage door and is used for detecting images between the cage door of the elevator and a hoistway door; and the video light curtain unit is arranged on the cage, and is connected with a control unit positioned on the side of a control cabinet of the elevator in a wired or wireless communication mode. The area between the hoistway door and the cage door is detected in a distinguished way according to the images acquired by the camera, so that the condition that people who take the elevator are clamped to be hurt when the door of the elevator is closed can be effectively avoided. Furthermore, surface detection is converted into line detection by a detection algorithm, and while sensitivity is guaranteed, the calculated amount is greatly reduced, and economy is improved.
Description
Technical field
The utility model relates to the elevator control technology field, and especially a kind of elevator anti-pinch is touched video light curtain system.
Background technology
High speed development along with the modern urban construction; The raising of people's standard of living, the demand of elevator also grows with each passing day, and the resident is also more and more clear to the understanding of elevator safety; Pass in and out unique gate inhibition of lift car as the passenger; The safety of elevator door causes user's attention day by day, and the elevator door fender guard becomes one of elevator safety product that the user is concerned about most, also is an important indicator weighing the elevator quality.
Current; What the elevator door fender guard generally adopted is the mode that infrared ray curtain and safety edge combine; Promptly at the light curtain plate of two settings of the parallel installation in both sides of the car door of elevator; Be equipped with uniformly on plate wherein that infrared transmitting device is used for launching infrared ray, its resolution reaches 20 ~ 40mm basically, corresponding on another piece plate the infrared ray that infrared receiving device is used for receiving the infrared launcher emission be installed.Perhaps the object retaining is when two light curtains are middle as nobody, and infrared ray will can not be blocked, and receiving device can receive infrared ray smoothly, and this moment, door office closed; Otherwise receiving device does not receive infrared ray, and the door machine is opened.The resolution of above-mentioned infrared light curtain is generally 20 ~ 40mm, object smaller as people's finger in the middle of elevator door, infrared light curtain possibly detect less than, safety edge then is design-calculated in order to remedy this deficiency.When door office closed, if safety edge is run into people's finger, the door chance is compelled to be opened, thereby avoided pressing from both sides the generation of people's incident.
Because the valid analysing range of traditional infrared light curtain is many straight lines separately that are on this plane, measurement range is limited; And will with the safety edge use that combines, force people to the improvement of upgrading of elevator infrared light curtain.Elevator video light curtain system has solved traditional elevator infrared light curtain and has had blind area and the not enough problem of reliability of detecting; As number being 201010151901.2 in one Chinese patent application; Name is called and discloses a kind of elevator mistake of preventing in " video monitoring apparatus of reopening elevator door " and close the reopening elevator door video monitoring apparatus that causes clamping passenger or belongings; This device is not changing under the structure prerequisite of original elevator cage door, has solved the not enough problem of infrared light curtain reliability.But the camera of this elevator video light curtain is installed in the gate of elevator and the middle between the door of the Room, and Room door and gate can have influence on detection range and light intensity in the process of closing the door, and the video signal that receives also is not easy to handle.
The utility model content
The technical matters that the utility model will solve is: provide a kind of elevator anti-pinch with low cost, that safe reliability is high to touch video light curtain system, the generation of situation about having been crushed when having taken precautions against elevator passenger's entering at closing time effectively or having withdrawed from elevator.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of elevator anti-pinch is touched video light curtain system; Comprise camera; Said camera is connected with the video light curtain unit that the graphicinformation obtained according to this camera is carried out anti-pinch touch-control system; Said camera is positioned at the top of lift car near the gate side, is used to detect the image between elevator cage door and the Room door; Said video light curtain unit is installed on the car, is connected with the control unit that is positioned at the elevator control cabinet side through wired or communication.
Further as preferred embodiment; Said video light curtain unit comprises the microprocessor that carries out digital image processing; Said microprocessor is connected with said camera through USB interface; To receive the elevator cage door and the image between the door of the Room that camera collection arrives, said microprocessor judges that through image detection algorithm the back stops to close gate signal through communication interface to the control unit transmission.
Further as preferred embodiment, said communication interface is UART serial ports, wireless communication module or Ethernet interface.
Further as preferred embodiment; Said microprocessor is divided into three zones to the graphicinformation between elevator cage door and the Room door that receives; Comprise being first surveyed area and second surveyed area that symmetrical structure is distributed in the vertical dual-side of camera, and the 3rd surveyed area that is positioned at horizontal direction under the camera that in the process of closing the door, forms of elevator.
Further as preferred embodiment; Said microprocessor is to the graphicinformation of first surveyed area and second surveyed area; Judge through image detection algorithm to exist external object to block gate nearside wheel profile or Room outer side of door outline line or block gate off-side wheel profile and Room door nearside wheel profile simultaneously that microprocessor stops to close gate signal to the control unit transmission; Said microprocessor is to the graphicinformation of the 3rd surveyed area; Judge through image detection algorithm to exist external object to block gate nearside wheel profile, gate off-side wheel profile, Room door nearside wheel profile and Room outer side of door outline line any one, microprocessor sends to control unit and stops to close gate signal.
Further as preferred embodiment, when microprocessor when above-mentioned three surveyed areas do not detect external object, cancel automatically to what control unit sent and stop to close gate signal.
Further as preferred embodiment, said microprocessor is connected with alarm module, and said alarm module is a buzzer phone; When microprocessor sends when stopping to close gate signal; Buzzer phone sends the buzzing chimes of doom, cancels when stopping to close gate signal when microprocessor, and buzzer phone stops the buzzing chimes of doom.
The beneficial effect of the utility model is: the image that the utility model arrives through camera collection, and the zone between Room door and the gate had distinguish ground and detect, taken precautions against the generation that elevator crushes passenger's situation at closing time effectively.The adaptivity of algorithm has farthest prevented to send the generation that mistakenly stop only closes gate signal.Moreover, because detection algorithm converts the detection on opposite into to line detection, when guaranteeing sensitivity, greatly reduce calculated amount, improved economy.
Description of drawings
Be described further below in conjunction with the specific embodiment of accompanying drawing the utility model:
Fig. 1 is the structural representation that the utility model elevator anti-pinch is touched video light curtain system;
Fig. 2 is that the utility model elevator anti-pinch is touched video light curtain system forward structure scheme drawing;
Fig. 3 is that the utility model elevator anti-pinch is touched video light curtain system lateral structural representation;
Fig. 4 is the functional block diagram that the utility model elevator anti-pinch is touched video light curtain unit embodiment.
The specific embodiment
Referring to figs. 1 through Fig. 3; The utility model elevator anti-pinch is touched video light curtain system; Elevator is provided with car 30, has on the car 30 to be provided with the gate 31 that supplies passenger's turnover, and each floor is at parked place of elevator and the gate 31 corresponding Room doors 10 that are provided with; The utility model is through gathering the video image information between elevator cage door 31 and Room door 10, taken precautions against the situation that elevator crushes the passenger at closing time effectively and taken place.This video light curtain system comprises camera 32; Said camera 32 is connected with the video light curtain unit 20 that the graphicinformation obtained according to this camera 32 is carried out anti-pinch touch-control system; Said camera 32 is positioned at the top of lift car 30 near gate 31 sides, is used to detect the image between elevator cage door 31 and the Room door 10; Said video light curtain unit 20 is installed on the car 30, is connected with the control unit that is positioned at the elevator control cabinet side 40 through wired or communication.
In the utility model, said camera 32 can be common camera, because in car generally bright and clear (illuminating lamp is arranged), if the certain applications occasion is arranged, preferably can adopt the low-light (level) camera.Camera 32 is passed to video light curtain unit 20 with the image in the zone between Room door 10 and the gate 31; Video light curtain unit 20 is according to the image that receives; Whether judge has the passenger to pass in and out car on the particular detection zone; Stop to close gate signal thereby send to the control unit that is positioned at the elevator control cabinet side 40, make Room door 10 and gate 31 remain on current location through communication port.Further, behind short time delay, if also have the passenger to pass in and out car 30 on the particular detection zone, sound a buzzer and leave or get into car with the alarm passenger, this alerting signal disappears when object leaves Room door detecting automatically, and regains and stop enabling signal.
Further as preferred embodiment; With reference to Fig. 4; Said video light curtain unit 20 comprises the microprocessor 21 that carries out digital image processing; Said microprocessor 21 is connected with said camera 32 through USB interface 22, and elevator cage door 31 and the image between the Room door 10 so that the camera 32 that receives lift car 30 near the top of gate 31 sides collects stop to close gate signal through communication interface to control unit 40 transmissions after the said microprocessor 21 process image detection algorithm judgements.
Further as preferred embodiment, the communication interface that said microprocessor 21 adopts is UART serial ports 23, wireless communication module 24 or Ethernet interface 25.Said microprocessor 21 establishes wire joint or sets up wireless connections through wireless communication module 24 and control unit 40 through UART serial ports 23 and control unit 40.Microprocessor 21 further carries out the program test and the download of system through Ethernet interface 25.
Preferably; The S3C6410 ARM11 microprocessor that microprocessor 21 adopts Samsung to produce; Microprocessor 21 is included as the power supply 28 and the crystal oscillator 29 that system clock frequency is provided of system's power supply, and microprocessor 21 is connected with SDRAM (Synchronous Dynamic Random Access Memory, synchronous DRAM) 26 and NAND FLASH 27 through storage port; Microprocessor 21 is supported to start from NAND FLASH 27; And that NAND FLASH 27 has a capacity is big, the characteristics that price is low, and the utility model adopts the combination of NAND FLASH 27 and SDRAM 26 to reduce the cost of system.Further, microprocessor 21 also comprises buzzer phone 211 that warning is provided and the read-out 212 that demonstration information is provided.
Further as preferred embodiment; Stop to close gate signal if only transmit at the control unit 40 of elevator control cabinet side with between the video light curtain unit 20 on the lift car 30, then communication system can be made up of little wire communication of message capacity (such as cable) or radio communication; If take into account video monitoring function, promptly video light curtain unit 20 also will then need adopt high-capacity communication port, like optical fiber, WIFI etc. to the control unit that is positioned at the elevator control cabinet side 40 transmission video signals.
Further as preferred embodiment; For improving the safe reliability of system; When guaranteeing camera 32, video light curtain unit 20, communication port et out of order; Do not influence elevator and normally close the door, native system adopts closedown mode, sends by certain frequency when promptly in the specific region, not detecting the passenger and passing in and out lift car to allow elevator to close gate signal; Allow elevator to close gate signal in case in the specific region, detect to stop when the passenger passes in and out lift car sending, this moment, elevator cage door and Room goalkeeper stopped to close the door.
Further as the improvement of the utility model; Graphicinformation between 21 pairs of elevator cage doors 31 of said microprocessor and the Room door 10 is divided into three zones; With reference to Fig. 2; Comprise being the first surveyed area T1 and the second surveyed area T2 that symmetrical structure is distributed in camera 32 vertical dual-sides, and the 3rd surveyed area T3 that is positioned at horizontal directions under the camera 32 that in the process of closing the door, forms of elevator.The 3rd surveyed area T3 dynamic change along with the process of closing the door of elevator: two point of connection C, D are arranged at gate nearside wheel profile and car bottom; Room outer side of door outline line and floor platform have two point of connection A, B, the quadrangle that the 3rd surveyed area T3 is the summit with A, B, C, four points of D just.
Further as preferred embodiment; Said microprocessor 21 adopts identical algorithm to the graphicinformation of the first surveyed area T1 and the second surveyed area T2; With the first surveyed area T1 is example; Exist external object (greater than the external object of effective dimensions) to block gate 31 nearside wheel profiles 7 or Room door 10 off-side wheel profiles 6 through the image detection algorithm judgement, microprocessor 21 sends to control unit 40 and stops to close gate signal; Send the situation that the elevator folder touches in order to prevent the passenger from narrow object is placed between Room door and the gate; If microprocessor 21 detects and deposits external object and block gate 31 off-side wheel profiles 4 and Room door 10 nearside wheel profiles 5 simultaneously, microprocessor 21 also sends to control unit 40 and stops to close gate signal; The image processing algorithm and the first surveyed area T1 to the second surveyed area T2 are similar; For example; Deposit external object and block gate 31 nearside wheel profiles 9 or Room door 10 off-side wheel profiles 8 when microprocessor 21 detects, microprocessor 21 sends to control unit 40 and stops to close gate signal; Said microprocessor 21 is to the graphicinformation of the 3rd surveyed area T3; Judge through image detection algorithm to exist external object to block gate nearside wheel profile, gate off-side wheel profile, Room door nearside wheel profile and Room outer side of door outline line any one, microprocessor 21 sends to control unit 40 and stops to close gate signal.
Further as improving, when microprocessor 21 when above-mentioned three surveyed areas do not detect external object, cancel automatically to what control unit 40 sent and stop to close gate signal.
It will be appreciated by those skilled in the art that; Pass gate control signal in the utility model adopts closedown mode; When promptly in above-mentioned zone, not detecting the passenger and passing in and out lift car, microprocessor 21 press certain frequency and is sent to control unit 40 and allow elevators pass gate signals; In case when in above-mentioned zone, detecting the passenger and passing in and out lift car, microprocessor 21 stops to send and allows elevator to close gate signal, this moment, elevator cage door and Room goalkeeper stopped to close the door.
Further as preferred embodiment; Said microprocessor 21 is connected with alarm module; Said alarm module is a buzzer phone 211, and when microprocessor 21 sends when stopping to close gate signal, buzzer phone 211 sends the buzzing chimes of doom; Cancel when stopping to close gate signal when microprocessor 21, buzzer phone 211 stops the buzzing chimes of doom.
More than be that preferable enforcement to the utility model specifies; But the utility model is created and is not limited to said embodiment; Those of ordinary skill in the art can also make all equivalent variations or replacement under the prerequisite of the utility model spirit, distortion that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (4)
1. an elevator anti-pinch is touched video light curtain system; Comprise camera (32); Said camera (32) is connected with the video light curtain unit (20) that the graphicinformation obtained according to this camera (32) is carried out anti-pinch touch-control system; It is characterized in that: said camera (32) is positioned at the top of lift car (30) near gate (31) side, is used to detect the image between elevator cage door (31) and the Room door (10); Said video light curtain unit (20) is installed on the car (30), is connected with the control unit that is positioned at the elevator control cabinet side (40) through wired or communication.
2. a kind of elevator anti-pinch according to claim 1 is touched video light curtain system; It is characterized in that: said video light curtain unit (20) comprises the microprocessor (21) that carries out digital image processing; Said microprocessor (21) is connected with said camera (32) through USB interface (22); To receive the elevator cage door (31) and the image between the Room door (10) that camera (32) collects, said microprocessor (21) judges that through image detection algorithm the back stops to close gate signal through communication interface to control unit (40) transmission.
3. a kind of elevator anti-pinch according to claim 2 is touched video light curtain system, it is characterized in that: said communication interface is UART serial ports (23), wireless communication module (24) or Ethernet interface (25).
4. a kind of elevator anti-pinch according to claim 3 is touched video light curtain system, it is characterized in that: said microprocessor (21) is connected with alarm module, and said alarm module is buzzer phone (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005088 CN202429845U (en) | 2012-01-07 | 2012-01-07 | Clamping and contacting prevention video light curtain system for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005088 CN202429845U (en) | 2012-01-07 | 2012-01-07 | Clamping and contacting prevention video light curtain system for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202429845U true CN202429845U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220005088 Expired - Fee Related CN202429845U (en) | 2012-01-07 | 2012-01-07 | Clamping and contacting prevention video light curtain system for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202429845U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530690A (en) * | 2012-01-07 | 2012-07-04 | 广州永日电梯有限公司 | Elevator video light curtain system for preventing pinching touch |
| CN104590979A (en) * | 2015-02-28 | 2015-05-06 | 徐州建机工程机械有限公司 | Electric roller shutter door type cage |
| CN115028046A (en) * | 2022-05-10 | 2022-09-09 | 菱王电梯有限公司 | Elevator management system and method |
-
2012
- 2012-01-07 CN CN 201220005088 patent/CN202429845U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530690A (en) * | 2012-01-07 | 2012-07-04 | 广州永日电梯有限公司 | Elevator video light curtain system for preventing pinching touch |
| CN104590979A (en) * | 2015-02-28 | 2015-05-06 | 徐州建机工程机械有限公司 | Electric roller shutter door type cage |
| CN115028046A (en) * | 2022-05-10 | 2022-09-09 | 菱王电梯有限公司 | Elevator management system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20200107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |