CN111196523A - Infrared centering light curtain of rectifying - Google Patents
Infrared centering light curtain of rectifying Download PDFInfo
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- CN111196523A CN111196523A CN202010029339.XA CN202010029339A CN111196523A CN 111196523 A CN111196523 A CN 111196523A CN 202010029339 A CN202010029339 A CN 202010029339A CN 111196523 A CN111196523 A CN 111196523A
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- infrared
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/0204—Sensing transverse register of web
- B65H23/0216—Sensing transverse register of web with an element utilising photoelectric effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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Abstract
The invention discloses an infrared centering and deviation rectifying light curtain, which relates to the technical field of sensors and aims at solving the problem of poor working performance of the existing sensor, the following scheme is provided, wherein the infrared centering and deviation rectifying light curtain comprises an infrared transmitter and an infrared receiver unit, the infrared transmitter consists of a left side light-emitting unit, a transmitting hollow blind area and a right side light-emitting unit, the infrared receiver consists of a left side receiving unit, a receiving hollow blind area and a right side receiving unit, and reference points do not need to be adjusted: adopt two transmission and receiving module to scan and detect, have fixed central benchmark, can detect the object of rectifying a deviation of different width, when changing the object of rectifying a deviation of different width, need not do readjustment benchmark and adjustment detection data, the deviation that scanning cycle arouses is little: the two scanning modules adopt different scanning modes, and the detection time at two sides is synchronous, so that errors caused by asynchronism in scanning period are avoided.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to an infrared centering and deviation rectifying light curtain.
Background
In the winding production process of corrugated paper, cloth, steel strips and the like, the production process is influenced due to the deviation of materials in the position of a production line; the problems of irregular coil material, material waste, quality influence and the like can be caused if the positions of the materials are not uniform and the twisting phenomenon exists in the coil material process. Some existing deviation-correcting sensors mainly adopt single-side detection and double-side detection formed by two groups of single sides, the single-side deviation correction is different from a central reference position due to deviation-correcting objects with different widths, and different material widths need to be readjusted to install a structure or adjust program reference parameters; if two sets of single-side deviation rectifying devices are adopted to form centering detection, because scanning between the two sets of deviation rectifying devices is asynchronous, the error of the heaviest detection result caused by time difference on a detection signal is easy to exist, and therefore an infrared centering deviation rectifying light curtain is provided.
Disclosure of Invention
The infrared centering and deviation rectifying light curtain provided by the invention solves the problem of poor working performance of a sensor.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an infrared ray centering light curtain of rectifying, includes infrared emitter, infrared receiver and the object of rectifying, its characterized in that, infrared emitter comprises left side luminescence unit, transmission cavity blind area, right side luminescence unit, and infrared receiver comprises left side receiving element, receipt cavity blind area, right side receiving element.
Preferably, the infrared emitters on two sides are arranged in two independent emitting modules, the number of the infrared emitting elements on two sides is the same, the distance between the infrared emitting elements is equal, and the central points of the infrared emitters correspond to each other.
Preferably, the infrared receivers on two sides are positioned in two independent infrared receiving modules, the number of the infrared receiving elements on two sides is the same, the distance between the infrared receiving elements is equal, and the infrared receiving elements on two sides correspond to the central point of the receiver.
Preferably, two lamps on the left side and the right side of the infrared emitter are synchronously scanned, half of the scanning time of the light curtain is reduced, and the scanning time of the light curtain is shortened.
Preferably, the receiving modules on the left side and the right side of the infrared receiver and the left and the right transmitting modules of the infrared transmitter adopt synchronous signal communication, so that the two modules transmit and receive together.
Preferably, the internal circuit of the infrared transmitter comprises a power supply module, a single chip microcomputer main control module, a synchronous signal analysis module, an analog switch module, two infrared transmitter driving current amplification modules and an infrared transmitting module, the internal circuit of the infrared receiver comprises the power supply module, the single chip microcomputer main control module, a synchronous type transmitting module, the analog switch module, two infrared signal receiving modules, two infrared signal amplification modules, an analog quantity signal output module, a switch signal output module and an RS485 output module, the power supply module adopts a DC-DC voltage reduction mode to reduce voltage, the input voltage is DC 10V-DC 30V, the detection output signal result of the infrared receiver can be selected in various ways, the detection signals of the two modules can be independently output respectively, and the detection results can also be selected to be calculated and compared inside, and outputting a final deviation signal, wherein the minimum distance between the optical axes of the infrared transmitter and the infrared receiver can be 2.5mm, and the scanning can adopt a cross scanning mode.
Preferably, two modules in the infrared transmitter and the infrared receiver are adopted to perform scanning synchronously, the response time is short, and the single infrared scanning time can reach 50 us.
Preferably, the measurement accuracy of the infrared transmitter and the infrared receiver can reach 1.25 mm.
In the invention:
1. no reference point adjustment is required: the two transmitting and receiving modules are adopted for scanning detection, a fixed central reference point is provided, the deviation rectification objects with different widths can be detected, and the reference point does not need to be readjusted and the detection data does not need to be adjusted when the deviation rectification objects with different widths are replaced.
2. The deviation caused by the scanning period is small: the two scanning modules adopt different scanning modes, and the detection time at two sides is synchronous, so that errors caused by asynchronism in scanning period are avoided.
3. The response time is fast: the single infrared scanning period is 50us, and two lamps can be scanned at the same time, and the whole scanning period is 25 us.
4. The detection precision is high: the highest detection precision can reach 1.25 mm.
5. The input voltage range is wide: DC 10V-DC 30V.
6. Data comparison is carried out internally: the receiving modules on the two sides of the infrared receiver adopt the same main control module for detection, and data can be output after being detected and compared inside the infrared receiver.
7. An analog quantity voltage signal can be output: 0-5V and 0-10V.
8. An analog quantity current signal can be output: 4mA-20mA, 0mA-20mA and 0mA-24 mA.
9. A switchable quantity output: NPN and PNP.
10. RS485 communication output can be carried out: modbus communication protocol and custom protocol.
Drawings
FIG. 1 is a schematic structural diagram of an infrared centering and deviation rectifying light curtain according to the present invention;
FIG. 2 is a schematic circuit diagram of an infrared emitter inside an infrared centering and deviation rectifying light curtain according to the present invention;
fig. 3 is a schematic circuit structure diagram of an infrared receiver in an infrared centering and deviation rectifying light curtain according to the present invention.
Reference numbers in the figures: 1. an infrared emitter; 2. a left light emitting unit; 3. emitting a hollow blind area; 4. a right side light emitting unit; 5. correcting the deviation of the object; 6. an infrared receiver; 7. a left side receiving unit; 8. receiving a hollow blind area; 9. and a right receiving unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, an infrared centering rectification light curtain comprises an infrared transmitter 1, an infrared receiver 6 and a rectification object 5, wherein infrared sensing parts at two sides of the infrared transmitter 1 and the infrared receiver 6 are respectively distributed at two sides of the centering rectification light curtain, an unnecessary sensing area exists in the middle part according to the width of the actual rectification object 5, and the middle part of the rectification light curtain is made into a hollow blind area according to the width of the unnecessary sensing area, so that the number of infrared components is reduced, the scanning number of the light curtain is further reduced, and the scanning efficiency is effectively improved; in the using process, the deviation rectifying object 5 is placed between the red infrared emitter 1 and the infrared receiver 6, the central point of the light curtain is used as the center, the position of the deviation rectifying object is judged by judging the quantity of the deviation rectifying object shielding the left infrared light beams and the quantity of the deviation rectifying object shielding the right infrared light beams, and the width change of the deviation rectifying object 5 cannot influence the light curtain detection result because the reference position is in the central position of the light curtain. When the deviation correcting object 5 is in the middle position, the quantity of infrared beams shielding both sides is the same, the data signal required to be deviated output by the deviation correcting light curtain is 0, when the deviation correcting object 5 is deviated leftwards or rightwards, the deviation data signal is output by the light curtain to a deviation correcting mechanism system for deviation adjustment until the deviation correcting object 5 is in the center position again due to the asymmetrical quantity of the left and right shielding beams, and therefore the purpose of centering and deviation correction is achieved, and the circuit of the infrared centering deviation correcting transmitter is composed of a transmitter main control module 21, a power supply module 22, a synchronous receiving module 24, a transmitting module 23 and a transmitting module 25. The power module 22 steps down the external input power to obtain a dc voltage of 5V to provide power for the whole system, the synchronous receiving module 24 mainly receives the synchronous signal sent by the receiver, the signals are processed and then transmitted to a transmitter main control module 24, the transmitter main control module mainly detects and controls the work of the internal circuit of the whole transmitter, the main control module 21 judges the initial signal of the synchronous signal after receiving the synchronous signal, and after receiving the initial signal, the main control module starts to control the transmitting circuit modules 23 and 25 to start transmitting infrared signals, the two transmitting circuit modules respectively comprise a logic circuit, a driving circuit and a transmitting circuit, the main control module 21 simultaneously transmits the same signal to the logic circuits of the two transmitting modules, the logic judgment processing control transmits a first lamp transmitting signal, and the signal is amplified by the driving circuit to drive the infrared LED to transmit the infrared signal; after the main control module detects the second signal, the second infrared lamp sends out an infrared signal through the processing, and the rest is done in sequence until a scanning period is completed from the first infrared emitting element to the last infrared emitting element of the two sending modules, so that the whole working process of the transmitter circuit is formed, and the circuit of the infrared centering and deviation rectifying receiver consists of a power supply module, a receiver main control module, an infrared receiving module, a synchronous signal sending module and a signal output module. The power supply module performs voltage reduction processing on an external input power supply to convert the external input power supply into 5V direct-current voltage to provide a power supply for the whole system; the receiver main control module mainly controls the operation and the operation of the whole receiver circuit; the main control module controls the synchronous signal sending module to send synchronous signals and simultaneously monitors whether the synchronous signal line of the transmitter is effectively connected with the synchronous signal sending module, and if the synchronous signal is monitored to be abnormal or the synchronous signal line of the transmitter is not connected, the main control module instructs the abnormal indicator lamp to flicker to prompt that the synchronous signal is abnormal. The main control module controls the synchronous signal transmission and simultaneously controls the two receiving modules to receive infrared signals; the two receiving modules respectively comprise an infrared receiving module, a signal amplifying module and a logic processing module, when the main control module sends an initial synchronous signal to the transmitter, the two logic modules are synchronously controlled and a first receiving tube carries out signal receiving, the infrared signal received by the receiving element is amplified through the signal and transmitted to the main control CPU through the logic processing module, and the main control signal sequentially receives the corresponding infrared signal on the infrared module from the sending of the initial synchronous signal to the last synchronous signal to complete periodic scanning. Accomplish a cycle scanning back host system and judge the processing to the red line signal of two different receiving modules, shelter from the situation according to the difference of two modules, control output module output corresponding signal and give the mechanism system of rectifying, output module possesses current output, voltage output, switching value output, RS485 output function, when adopting RS485 to carry out signal transmission, RS possesses the both-way communication function, Modbus communication protocol and free port communication protocol, outside can select to read the inside corresponding data of light curtain and set up the relevant parameter of light curtain.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides an infrared ray centering light curtain of rectifying, includes infrared emitter (1), infrared receiver (6) and object (5) of rectifying, its characterized in that, infrared emitter (1) comprises left side luminescence unit (2), transmission cavity blind area (3), right side luminescence unit (4), and infrared receiver (6) comprise left side receiving element (7), receipt cavity blind area (8), right side receiving element (9).
2. An infrared centering rectification light curtain as claimed in claim 1, wherein the infrared emitters (1) on both sides are located in two independent emitting modules, the number of the infrared emitting elements on both sides is the same, the distance between the infrared emitting elements is equal, and the central points of the infrared emitters correspond to each other.
3. An infrared centering rectification light curtain as claimed in claim 1, wherein the infrared receivers (6) on both sides are located in two independent infrared receiving modules, the number of the infrared receiving elements on both sides is the same, the distance between the infrared receiving elements is equal, and the central points of the receivers correspond to each other.
4. An infrared centering rectification light curtain as claimed in claim 1, wherein two lamps on the left and right sides of the infrared emitter (1) are synchronously scanned simultaneously, which reduces half of the scanning time of the light curtain and speeds up the scanning time of the light curtain.
5. An infrared centering rectification light curtain as claimed in claim 1, wherein the receiving modules on the left and right sides of the infrared receiver (6) and the transmitting modules on the left and right sides of the infrared transmitter (1) adopt synchronous signal communication, so that the two modules transmit and receive together.
6. The infrared centering rectification light curtain as claimed in claim 1, wherein the internal circuit of the infrared emitter (1) comprises a power supply module, a single chip microcomputer main control module, a synchronous signal analysis module, an analog switch module, two infrared emitter driving current amplification modules, and an infrared emission module, the internal circuit of the infrared receiver (6) comprises a power supply module, a single chip microcomputer main control module, a synchronous type sending module, an analog switch module, two infrared signal receiving modules, two infrared signal amplification modules, an analog quantity signal output module, a switch signal output module, and an RS485 output module, the power supply module adopts a DC-DC voltage reduction mode to reduce the voltage, the input voltage is DC 10V-DC 30V, the detection output signal result of the infrared receiver (6) can be selected in various ways, and the detection signals of the two modules can be selected to be output independently, the detection result can be calculated and compared inside the infrared transmitter (1) and the infrared receiver (6) to output a final deviation signal, the minimum distance between the optical axes of the infrared transmitter and the infrared receiver can be 2.5mm, and the scanning can adopt a cross scanning mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029339.XA CN111196523A (en) | 2020-01-13 | 2020-01-13 | Infrared centering light curtain of rectifying |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010029339.XA CN111196523A (en) | 2020-01-13 | 2020-01-13 | Infrared centering light curtain of rectifying |
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| CN111196523A true CN111196523A (en) | 2020-05-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001660A (en) * | 2021-11-02 | 2022-02-01 | 安徽科技学院 | Full-digital photoelectric deviation-rectifying sensor with fine-tuning structure |
| CN117073535A (en) * | 2023-07-10 | 2023-11-17 | 深圳市志奋领科技有限公司 | Deviation correcting sensor system and deviation correcting method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891528A (en) * | 1989-03-23 | 1990-01-02 | Crosfield Ebway, Inc. | Microprocessor-controlled apparatus for detecting and guiding a web wherein right and left eyespots are formed to determine right and left edges |
| CN102253422A (en) * | 2011-04-26 | 2011-11-23 | 西安理工大学 | Infrared light-based apparatus and method for edge detection of strip material |
| CN103130005A (en) * | 2013-02-25 | 2013-06-05 | 西安理工大学 | Strip self-centering detecting method based on infrared ray |
| CN204360497U (en) * | 2014-11-27 | 2015-05-27 | 青岛海日安电子有限公司 | A kind of electronic grille fence |
| CN105674876A (en) * | 2014-11-21 | 2016-06-15 | 陕西亚泰电器科技有限公司 | Material centering sensor |
| CN106276533A (en) * | 2016-10-11 | 2017-01-04 | 广州日滨科技发展有限公司 | The method and apparatus controlling light curtain |
| CN205941941U (en) * | 2016-08-25 | 2017-02-08 | 石家庄华燕交通科技有限公司 | Infrared measurement grating device |
| CN206787488U (en) * | 2016-12-04 | 2017-12-22 | 深圳市恒福特科技有限公司 | High-precision correction light curtain device |
| CN107716563A (en) * | 2017-09-26 | 2018-02-23 | 西安理工大学 | Band automatic centering detection method based on infrared light |
| CN107782258A (en) * | 2017-09-26 | 2018-03-09 | 西安理工大学 | Band centering detecting system and its detection method based on cmos sensor |
| CN207457754U (en) * | 2017-09-26 | 2018-06-05 | 东莞市搏信智能控制技术有限公司 | Photoelectric rectification sensor |
| CN211393245U (en) * | 2019-10-31 | 2020-09-01 | 深圳市海任科技有限公司 | Infrared light curtain detection device that rectifies of corrugated container board |
-
2020
- 2020-01-13 CN CN202010029339.XA patent/CN111196523A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891528A (en) * | 1989-03-23 | 1990-01-02 | Crosfield Ebway, Inc. | Microprocessor-controlled apparatus for detecting and guiding a web wherein right and left eyespots are formed to determine right and left edges |
| CN102253422A (en) * | 2011-04-26 | 2011-11-23 | 西安理工大学 | Infrared light-based apparatus and method for edge detection of strip material |
| CN103130005A (en) * | 2013-02-25 | 2013-06-05 | 西安理工大学 | Strip self-centering detecting method based on infrared ray |
| CN105674876A (en) * | 2014-11-21 | 2016-06-15 | 陕西亚泰电器科技有限公司 | Material centering sensor |
| CN204360497U (en) * | 2014-11-27 | 2015-05-27 | 青岛海日安电子有限公司 | A kind of electronic grille fence |
| CN205941941U (en) * | 2016-08-25 | 2017-02-08 | 石家庄华燕交通科技有限公司 | Infrared measurement grating device |
| CN106276533A (en) * | 2016-10-11 | 2017-01-04 | 广州日滨科技发展有限公司 | The method and apparatus controlling light curtain |
| CN206787488U (en) * | 2016-12-04 | 2017-12-22 | 深圳市恒福特科技有限公司 | High-precision correction light curtain device |
| CN107716563A (en) * | 2017-09-26 | 2018-02-23 | 西安理工大学 | Band automatic centering detection method based on infrared light |
| CN107782258A (en) * | 2017-09-26 | 2018-03-09 | 西安理工大学 | Band centering detecting system and its detection method based on cmos sensor |
| CN207457754U (en) * | 2017-09-26 | 2018-06-05 | 东莞市搏信智能控制技术有限公司 | Photoelectric rectification sensor |
| CN211393245U (en) * | 2019-10-31 | 2020-09-01 | 深圳市海任科技有限公司 | Infrared light curtain detection device that rectifies of corrugated container board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001660A (en) * | 2021-11-02 | 2022-02-01 | 安徽科技学院 | Full-digital photoelectric deviation-rectifying sensor with fine-tuning structure |
| CN114001660B (en) * | 2021-11-02 | 2023-08-04 | 安徽科技学院 | All-digital photoelectric correction sensor with fine tuning structure |
| CN117073535A (en) * | 2023-07-10 | 2023-11-17 | 深圳市志奋领科技有限公司 | Deviation correcting sensor system and deviation correcting method |
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Application publication date: 20200526 |
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