CN201102851Y - Automatic recognition and adaption optical curtain of elevator door knife - Google Patents
Automatic recognition and adaption optical curtain of elevator door knife Download PDFInfo
- Publication number
- CN201102851Y CN201102851Y CNU2007201133970U CN200720113397U CN201102851Y CN 201102851 Y CN201102851 Y CN 201102851Y CN U2007201133970 U CNU2007201133970 U CN U2007201133970U CN 200720113397 U CN200720113397 U CN 200720113397U CN 201102851 Y CN201102851 Y CN 201102851Y
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- projector
- door cutter
- cpu
- elevator door
- controller
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic identification and adaptation light screen for elevator door cutter, which comprises a controller, an emitter, and a receiver. The infrared receiving tube of the receiver is connected with a multiple-selected switch, and the output of the multiple-selected switch passes through a preamplifier, a limiting main amplifier, a band-pass filter, a detector and a rectifier in sequence; the controller comprises a CPU, and the CPU is respectively connected with an encoder and a rectifier of the emitter. The technology of the utility model can automatically detect the relative position of the door cutter and the light screen during a period of time when the light screen is electrified and shield the light path of the light screen that is or may be kept out by the door cutter. The automatic adaptation technology of the door cutter ensures the light screens of the same specification to be adaptable for all kinds of installation environment.
Description
Technical field
The utility model relates to a kind of elevator light curtain system, especially relates to a kind ofly discerning automatically with the elevator door cutter and adapting to the light curtain.
Background technology
Elevator light curtain is the safety device that prevents to clamp when Automatic door of elevator from closing passenger or goods.Its utilizes the high-velocity scannings of many group infrared emission and receiving element, surveys the shelter in the protection zone and provides signal to upper control convenience.And the teamwork of door cutter when mainly playing car door and floor Room door realization switches.The elevator that how tame brand is arranged at present, especially Ou Zhou producer, the effective zone of protection in design-calculated light curtain upper part might be blocked by the elevator door cutter.Because door cutter length and the installation site of each manufacturers design all are different, order goods and very inconvenience when using so can cause.As the patent No. is the rigidity clamping elevator synchronous door knife of a kind of independent power and capable of auto matically compensating clamp distance of CN200510022248.9, two parallel shape door blades 1 are connected with the lower rotary shaft 7 that contains worm gear with last rotating shaft 6 respectively, be installed on the knife rest 8, form four-bar linkage, the worm screw 2 and the worm gear that link to each other with individual motor have constituted Worm and worm-wheel gearing, the lower rotary shaft 7 that contains worm gear is provided with hook with safety tong, and be arranged at the motion that cooperatively interacts of the quiet latch hook of gate on the frame.Though reliability of operation and safety all greatly improve, and have greatly improved running precision, do not finish the synchronism that door cutter and light curtain match.
Summary of the invention
The utility model mainly is to solve the technical matters that the existing in prior technology elevator light curtain can not be in time in time adjusted according to the difference of elevator door cutter, and a kind of elevator door cutter identification and adaptation light curtain automatically that can in time adjust to adapt to a cutter is provided.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of elevator door cutter identification and adaptation light curtain automatically are provided, comprise controller, projector and receptor, projector and receptor are loaded on the elevator door both sides respectively, controller is controlled projector and receptor respectively by transmission cable, its special feature is, in the described projector, decoder is connected with the driving aerotron by the bigoted resistance of base stage, drive transistor collector and infrared emission tube, drive the grounded emitter of aerotron, infrared emission tube connects in power supply by current-limiting resistance; The infrared receiver tube of narrating is connected with multiselect one switch, and the output of multiselect one switch is successively by preamplifier, amplitude limit main amplifier, bandpass filter, detecter, rectifier; Described controller comprises CPU, and CPU is connected with rectifier with the decoder of projector respectively.The sweep signal that the main implementation controller of projector is transmitted, what projector carried out when initially powering on is full scan, be that each power valve all scans, behind the recognitiion gate cutter position, controller just sends the work sweep signal to power valve, and this working signal order projector is not scanned by the infrared emission tube that the door cutter stops; Receptor mainly receives the sweep signal of projector emission, and this signal is converted to the manageable signal of CPU; Controller is then mainly handled sweep signal and signal is handled, and sends the work sweep signal then to projector.Can in the extremely short time, scan by the door cutter to new installation according to this technology, and provide the work scan instruction, make the door cutter and the light curtain of different model and plate to cooperate easily according to scanning result.
As preferably, carry out a cutter scanning process in automatic identification of described elevator door cutter and the certain hour t of adaptive controller after powering on, CPU sends sweep signal to projector, infrared emission tube in the projector is to the infrared receiver tube emission infrared beam of offside, infrared receiver tube at first with the scanning result signal successively by preamplifier and the limit main amplifier, scanning result signal input tape bandpass filter carries out filtering then, then sweep signal enters detecter and rectifier more successively, at last signal is imported CPU, after CPU is converted into shielded signal with the scanning result signal, shielded signal is exported to projector, and projector shields infrared emission tube according to shielded signal.CPU mainly is treated to shielded signal with sweep signal, this shielded signal can allow projector that power valve is carried out corresponding shielding, make by the infrared emission tube of door cutter institute stop portions emission scan signal no longer, thereby the insertion of door cutter can't produce interference because of the scanning of light curtain, can make same light curtain system can be fit to the door cutter of different model.
As preferably, in the process that described CPU transforms the adjacent infrared emission tube of shielding object is shielded equally.CPU can increase adjacent infrared emission tube as the shielding object, and this mode prevents that mainly the cutter from can block adjoining infrared emission tube equally in dither process, and this extended mode can be more stable avoids the interference that may occur.
Therefore, the utlity model has rational in infrastructure, design characteristics such as ingenious, that cost is low, use is simple, especially designed door cutter adaptive technique can be in the light curtain gets a period of time when electric automatically detection door cutter and light curtain relative position and the shielded from light curtain has been blocked by the door cutter or the light path that may be blocked by a cutter.Door cutter adaptive technique makes the light curtain of same specification can adapt to various installation environments, makes that the user orders goods, the production technology arrangement of installation and manufacturer all simplified greatly, has very strong practical character.
Description of drawings
Accompanying drawing 1 is a kind of circuit diagram of the present utility model;
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the utility model is a kind of elevator door cutter identification and adaptation light curtain automatically, comprise controller, projector and receptor, projector and receptor are loaded on the elevator door both sides respectively, controller is controlled projector and receptor respectively by transmission cable, in the projector, the 3-8 decoder is connected with the driving aerotron by the bigoted resistance of base stage, driving transistor collector is connected with infrared emission tube, drive the grounded emitter of aerotron, infrared emission tube is connected with power supply by current-limiting resistance; Infrared receiver tube and 8 selects 1 switch to be connected, 8 select the output of 1 switch to amplify by preamplifier, amplitude limit main amplifier successively, the amplifying signal that obtains carries out filtering by bandpass filter, and signal carries out detection and rectification through detecter and rectifier more then; At last sweep signal is sent to the CPU in the described controller, after the analysis of the main process signal of CPU and the processing processing instruction is outputed to projector, projector is carried out the work of shielding power valve at last.
Described elevator door cutter automatically carries out a cutter scanning process in after powering on 3 seconds of identification and adaptive controller.At first; CPU sends sweep signal to projector; infrared emission tube in the projector is to the infrared ray adoptor emission infrared beam of offside; infrared receiver tube at first with the scanning result signal successively by preamplifier and the limit main amplifier; scanning result signal input tape bandpass filter carries out filtering then; then sweep signal enters detecter and rectifier more successively; at last signal is imported CPU; after CPU is converted into shielded signal with the scanning result signal; shielded signal is exported to projector; projector shields infrared emission tube according to shielded signal; wherein in the process that CPU transforms the adjacent infrared emission tube of shielding object is shielded equally; as shown in Figure 1; the light beam that power valve 3 sends is blocked by the door cutter; and a door cutter can move up and down when tightening up and may block this light beam of S4-R4; so surveyed in 3 seconds finish enter normal working after, light beam S1-R1; S1-R2; S2-R2; S2-R1; S2-R3; S3-R3; S3-R2; S3-R4; S4-R3; S4-R4 is participation protective with conductively-closed and not.
Claims (1)
1. elevator door cutter identification and adaptation light curtain automatically, comprise controller, projector and receptor, projector and receptor are loaded on the elevator door both sides respectively, controller is controlled projector and receptor respectively by transmission cable, it is characterized in that: in the described projector, decoder is connected with the driving aerotron by the bigoted resistance of base stage, driving transistor collector is connected with infrared emission tube, drive the grounded emitter of aerotron, infrared emission tube is connected with power supply by current-limiting resistance; Described infrared receiver tube is connected with multiselect one switch, and the output of multiselect one switch is successively by preamplifier, amplitude limit main amplifier, bandpass filter, detecter, rectifier; Described controller comprises CPU, and CPU is connected with rectifier with the decoder of projector respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201133970U CN201102851Y (en) | 2007-08-17 | 2007-08-17 | Automatic recognition and adaption optical curtain of elevator door knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201133970U CN201102851Y (en) | 2007-08-17 | 2007-08-17 | Automatic recognition and adaption optical curtain of elevator door knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102851Y true CN201102851Y (en) | 2008-08-20 |
Family
ID=39949874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201133970U Expired - Fee Related CN201102851Y (en) | 2007-08-17 | 2007-08-17 | Automatic recognition and adaption optical curtain of elevator door knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102851Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2549761A (en) * | 2016-04-28 | 2017-11-01 | Ensota (Guangzhou) Tech Ltd | An automatic door installation and method of determining the presence of an obstacle |
| CN112010132A (en) * | 2020-07-30 | 2020-12-01 | 猫岐智能科技（上海）有限公司 | Method for identifying electric vehicle through light curtain |
-
2007
- 2007-08-17 CN CNU2007201133970U patent/CN201102851Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2549761A (en) * | 2016-04-28 | 2017-11-01 | Ensota (Guangzhou) Tech Ltd | An automatic door installation and method of determining the presence of an obstacle |
| GB2549761B (en) * | 2016-04-28 | 2018-04-25 | Ensota Guangzhou Tech Ltd | An automatic door installation and method of determining the presence of an obstacle |
| US10564314B2 (en) | 2016-04-28 | 2020-02-18 | Ensota(Guangzhou) Technologies Ltd. | Automatic door installation and method of determining the presence of an obstacle |
| CN112010132A (en) * | 2020-07-30 | 2020-12-01 | 猫岐智能科技（上海）有限公司 | Method for identifying electric vehicle through light curtain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20110817 |