WO2015120615A1 - All-directional high-speed laser bar code scanning apparatus - Google Patents

All-directional high-speed laser bar code scanning apparatus

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Publication number
WO2015120615A1
WO2015120615A1 PCT/CN2014/072097 CN2014072097W WO2015120615A1 WO 2015120615 A1 WO2015120615 A1 WO 2015120615A1 CN 2014072097 W CN2014072097 W CN 2014072097W WO 2015120615 A1 WO2015120615 A1 WO 2015120615A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
mirror
light
scanning
laser
bar
Prior art date
Application number
PCT/CN2014/072097
Other languages
French (fr)
Chinese (zh)
Inventor
徐朝荣
Original Assignee
广东旭龙物联科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10831Arrangement of optical elements, e.g. lenses, mirrors, prisms

Abstract

An all-directional high-speed laser bar code scanning apparatus comprises a base housing (100). A groove (101) is formed in the middle of the base housing. Three light source open grooves (102-1, 102-2, 102-3) are formed in the periphery of the base housing, and the included angle between every two adjacent light source open grooves is 120 degrees. Three laser diodes (201-1, 201-2, 201-3) are correspondingly fixed in the light source open grooves. Three reflecting mirror brackets (301-1、301-2、301-3) are in one-to-one correspondence to the light source open grooves, each of the reflecting mirror brackets is provided with an emitted light reflecting mirror (302-1, 302-2, 302-3) and a received light reflecting mirror (303-1, 303-2, 303-3), and an opening is formed in the middle of the received light reflecting mirror. A rotary reflecting mirror group (400) is disposed at the central position of the groove. The rotary reflecting mirror group comprises a rotary motor (401) and multiple reflecting mirrors (402) disposed on the side surfaces of the rotary motor. An annular column reflecting mirror group (500) is disposed on the side surface of the boundary of the groove. Three light receiving open grooves (601-1, 601-2, 601-3) are formed below the rotary reflecting mirror group, and the included angle between every two adjacent light receiving open grooves is 120 degrees; a photosensitive receiving tube is disposed on each of the light receiving open grooves. The all-directional high-speed laser bar code scanning apparatus has the advantages of a wide scanning range, a high scanning speed, a large quantity of lines, a good bar code identification effect and the like.

Description

FIELD

The present invention relates to bar code scanning technology, and more particularly, to a full-high-speed laser bar code scanning apparatus. Background technique

Barcode scanning device, also referred to as bar code reader, bar code scanner, bar code scanner, a barcode scanner, etc., a use of optics, the data transmitted to the computer by wire or wireless manner after decoding the information contained in the barcode equipment apparatus and the like. Barcode scanning device identification accuracy, high speed data entry, and the single-cylinder devices, low cost, widely used in commercial POS (Point Of Sale, terminal sales) cash register system, supermarkets, courier, warehousing, logistics, books, medicine field.

According to different sources, it can be divided into avision barcode scanning device and laser bar code scanner (Laser, transliteration laser) barcode scanner. Prismatic barcode scanner also called CCD (Charge-coupled Device, charge-coupled device) image sensor, using the principle of optical coupling, the bar code pattern printed image, and then decoding the advantage that no rotating shaft, and long life low cost; and the laser bar code scanner using a laser diode as a light source-line scanner, in which the scanning speed, scanning distance, scanning bar code scanner sensitivity so superior avision, thereby to obtain a wider range of applications, now the mainstream market scanners laser bar code scanner.

Conventional laser bar code scanner is provided a single laser light source, and according to actual needs, the mirror plate is disposed on a plurality of different inclination angles around the laser light source, is provided while a polygon mirror at a central position of said plurality of mirror plate the polygon mirror drive motor or the rotation of the motor, in order to achieve multi-directional scanning light line network by a single light source is formed, as shown in FIG. 1, the scanning line optical network may utilize the multi-directional bar code treated test information read. The conventional laser scanning apparatus is formed only within a limited angle scanning light line network, and the smaller number of scanning lines, a plurality of single scan lines 10, the bar code must be tested is placed at right angles on each predetermined angle the scanning line can be properly optical network identification another, affect the effect of the bar code reader.

Since the laser scanning means is a single line scanner, one of the important factors affecting the results of the barcode reader is the number of scanning lines of the laser, i.e., laser scanning device when projected to the bar code scanning line test optical network, the optical network in the scan line each time the number of laser scan lines projected largely determine the effect of the barcode recognition. Generally, the larger the number of scanning lines, the better the effect of the scanning device.

In order to improve the effect of the scanning laser bar code scanning apparatus, Chinese Patent (application number:

200310101759.0) proposed variable scanning apparatus and method for laser bar code reading apparatus, mainly by providing a variable drive means, such that a polygon mirror center position in the scanning device, with a swing center predetermined variable angle and a predetermined wobble frequency swing, so that each laser scan lines derived from the scanning lines a plurality of mutually parallel thereto, shown in Figure 2, when the reference line 10 as 10, the program is improved after the original scan lines, each reference line 10 are derived from a plurality of scanning lines 11 parallel thereto. Thus, the technical means employed in this solution is obtained by multiplying each scan line of the scanning lines existing optical networks, and to increase the number of scanning lines of the laser scanning apparatus.

Although the above technical solution increases the number of scanning lines of the laser, increases the barcode recognition results, but because it is only the original scanning line repeatedly optical network to increase the number of prior scan lines, scanning lines and therefore only the light within a limited angle network, i.e. the angle of the scanning line the scanning optical network still not covered 360-degree coverage, a small range may be scanned, the scanning lines below the optical network shown in Figure 2 is the scanning of the blind, there remains a need to test the barcode a certain angle and placed in the correct position in the optical network scanning line, to be correctly identified alignment scan lines to affect the barcode recognition results and ease of use, and a single scan speed of the laser light source is slow defect is not resolved . SUMMARY

The present invention solves the technical problem, to provide a full range of high-speed laser bar code scanning apparatus, how the structure of the conventional laser bar code scanning apparatus is improved by increasing the number of lines of scanning lines, scanning lines and form a comprehensive optical network improve recognition accuracy measurements treat bar code, expand the effective recognition area.

To solve the above technical problem, the present invention provides a full range of high-speed laser bar code scanning apparatus, comprising: a base housing; intermediate said base housing is provided with a recess, the base housing is provided with three surround four weeks said grooved recesses between the light source, the light source and adjacent slotted into each other an angle of 120 degrees;

Three laser diodes, respectively, by a mounting assembly - in the light source corresponding to a fixed open slot, respectively, for generating a light beam at a predetermined beam path of the projection projecting out;

Three mirror holder, the light source slot - corresponding to, in the light source are mounted above the corresponding slot; each of the reflective mirror are respectively provided with a light projecting and a light receiving mirror on the mirror holder; and the light receiving mirror arranged in front of said light projecting mirror, the mirror receiving light is provided with a central opening;

A rotating mirror set disposed at a central position of said recess, said rotating mirror comprises a rotating electric machine and set a polygon mirror provided on the side surface of the rotary electric machine, the rotary electric machine of the multi-faceted mirror rotated at a predetermined speed under control;

A ring out of mirrors, a plurality of different angles of the mirror plate, namely, on the boundary side ring out of the groove;

And, three light receiving slot respectively disposed between the light receiving slot below the rotary mirror group, and adjacent angled 120 degrees, and the position of the light source slot - corresponding to; mounted on each of said light receiving slot has a photosensitive receiver;

After the advancing direction of the beam path of the projection light projection disposed in said mirror, each of said laser diode light beam generated by the corresponding projection projected to reflection mirror, passes through the receiving opening of the light reflecting mirror projection on the rotary mirror side mirror group, to form a full 360 degree coverage network lattice light reflected by the secondary mirror of the ring out of the group, in order to achieve full scan of the bar code;

The light receiving mirror reflected light will return to the bar code scanning said ring out on one mirror of the mirror group, and pooled after the reflection mirror group ring out of the receiving tube on the photosensitive.

Preferably, the wavelength of the light beams each emitted from the laser diode is 650 nm.

Further, the rotary electric machine disposed on the side surface of the polygon mirror surface is composed of six mirrors, and the mirrors adjacent to the mutual angle of 120 degrees.

In an implementation, the ring out mirror group includes three sets of rings row echelon mirror set on a boundary side of the groove, the position of the trapezoidal mirror and the light source groups each slot - - correspondence, and each group comprising a trapezoidal mirror lens having a predetermined three trapezoid inclination angle.

Still further, the scanning speed of the bar code scanning apparatus of 4860 lines / sec.

In particular, the bar code scanning means for one-dimensional bar code and / or two-dimensional bar code scanning recognition. Still further, the apparatus further comprising a barcode scanning bar code data processor;

The barcode data processor for receiving said electrical signal converted by the photosensitive receiver, the electrical signal data and the decoded acquisition information is stored scan the barcode.

Specifically, the mounting assembly comprises a light source paired with the cartridge slot, and a plurality of fitting the laser diode fixed to the card holder.

Preferably, the bar code data is 32-bit ARM processor processor.

Still further, the apparatus further comprises a bar code scanner housing structure, the front of the seat shell structure made of transparent material for passing the laser beam to normal.

Full-speed laser bar code scanning apparatus of the present invention provides, by providing a light source slot position 120 degrees every four weeks in the base housing, each light source is mounted in a slotted laser diode as a laser light source, and the respective laser optical structure supporting the light-emitting diode corresponding to the mirror, the mirror receiving light, and a rotating mirror group ring out mirror group, etc. Therefore, after multiple reflections of the laser beam (i.e., scan lines) generated by each laser diode at least covers 120 degrees of the scan area, and therefore the three laser light source may be projected 360 degrees full optical network scanning line, the scanning line to be tested is placed barcode optical network without deliberately aligned with the scanning line can be identified; when the rotating mirror group has a hexahedral mirror, ring out mirror group with a ninth polygon mirror, laser bar code scanning apparatus of the present invention provides can produce a scan line of optical network 54 line, to improve the recognition effect barcode; at the same time, the scanning speed can be controlled by controlling the rotation of the device the mirror group rotary motor speed, the speed of each scan line when the scan reaches the second When the line 30, the present invention provides a scanning apparatus scanning speed obtainable 4860 lines / sec. Thus, full-speed laser bar code scanning apparatus of the present invention is provided having a wide scanning range, scanning speed, and the high number of lines is good barcode recognition effect and the like. BRIEF DESCRIPTION

1 is a schematic of a conventional optical network scanning line formed by the laser scanner; FIG. 2 is a schematic view of the prior art to improve the conventional laser scanner scanning line optical network; FIG. 3 is a full-speed laser barcode of the present invention provides a perspective schematic structural diagram of an embodiment of the scanning device;

FIG 4 is a front view of a full-speed laser bar code scanning apparatus of the present invention in FIG. 3 provided; FIG. 5 is a partial structure of a laser bar code scanning apparatus of full-speed of the present invention in FIG. 3 provides a cross-sectional view; FIG. 6 is a diagram of the present invention provides 3 a configuration of the mounting assembly full speed laser bar code scanning apparatus in a schematic view;

FIG 7 is an exploded view of the mounting assembly of the present invention, FIG. 6 provided;

FIG 8 is a schematic structural diagram of the present invention to provide a rotating mirror 3 group;

9 is a schematic optical network full scan line laser bar code scanning apparatus of a high speed FIG. 3 of the present invention provides the formed;

FIG 10 is a schematic structural diagram of a bottom-round high-speed laser bar code scanning apparatus of the present invention in FIG. 3 provided;

FIG 11 is a schematic view of a housing base structure full speed laser bar code scanning apparatus of the present invention in FIG. 3 provided. detailed description

Below in conjunction with the accompanying drawings of the present invention in embodiments, the technical solutions in the embodiments of the present invention will be clearly and completely described.

Below in connection with FIGS. 3 to 11, the structure of full-speed laser bar code scanning apparatus of the present invention will be provided in detail.

Referring to FIG. 3 is a perspective schematic structural diagram of one embodiment of a full range of high-speed laser bar code scanning apparatus of the present invention is provided; FIG. 4 is a front view of a full-speed laser bar code scanning apparatus of the present invention of FIG. 3 provided; FIG. 5 is the present invention full-speed partial structure of a laser bar code scanning apparatus of Figure 3 provides a cross-sectional view.

In the present embodiment, preferably, the bar code scanning means for one-dimensional bar and / or two-dimensional bar code scanning recognition.

In the present embodiment, the full range of high-speed laser bar code scanning apparatus comprising: a base housing 100; 100 intermediate the base housing is provided with a recess 101, a perimeter of said base housing 100 is provided with three different angles, slotted recess 101 surrounding the light source, i.e., the base housing 100 is surrounded by three surrounding the grooved recess 101 of the light source (first light source slot 102-1, respectively, of second light source and third light source grooved slot 102-2 102-3), and preferably, between adjacent light source slotted into each other an angle of 120 degrees; i.e., a first light source slot 102-1, the second slot 102-2 and the third light source slot 102-3 on a mathematical form as the three vertices of an equilateral triangle.

The full range of high-speed laser bar code scanning apparatus further comprising three laser diodes (comprising a first laser diode 201-1, a second laser diode 201-2 and 201-3 of the third laser diode), respectively, by a mounting assembly - corresponding to the light source is fixed in the slot, respectively, for generating a light beam, and a light beam with a predetermined projection path emitted out; in particular, the first laser diode 201-1202-1 by first mounting assembly mounting the first light source slot 102-1; and a second laser diode 201-2 by a second light source mounted in the second mounting assembly slot 102-2 202-2; 201-3 third laser diode 202-3 by a third mounting assembly mounting in a third light source in slot 102-3.

Wavelength of each light beam emitted by the laser diode is preferably 650nm (nanometers). Since the low-intensity laser power density of the human body is much smaller than 650nm and the damage threshold of blood, thus having a wavelength of 650nm laser irradiation does not cause irreversible tissue damage, nor even prolonged exposure to the human body will bring any danger.

Referring to FIG. 6 is a structural diagram of a mounting assembly of the full-speed laser bar code scanning apparatus of the present invention in FIG. 3 provided in which in FIG. 6 FIG. (A) is a perspective structural schematic view of the mounting assembly; FIG. 6 in FIG. (b) is a side cross-sectional view of the mounting assembly. Referring to FIG. 7, it is an exploded view of the mounting assembly of the present invention, FIG. 6 is provided.

In the present embodiment, for a laser diode mounted on the same mounting assembly structure of each slot corresponding light source, a first to an example of the configuration of the mounting assembly 202-1 each mounting assembly.

Preferably, as shown in FIG. 7, the cartridge mounting assembly comprises a light source paired with the slot 2024, and a plurality of fitting the laser diode fixed to the card holder. In particular, any one of the mounting assembly may include a fitting for connection to line 2021, the spacer 2022, the spacer 2022 of laser diode 2023 via cable 2021 and the fixed position; Preferably, the wire 2021 is a laser FPC (Flexible Printed circuit, flexible circuit board) cable; specifically, the laser diode built in the cartridge 2023 2024, 2024 and 2025 the cartridge housing 100 fixed to the base by means of screws; fitting said mounting assembly further further comprising means for adjusting the focus of the spring 2026, the laser diode 2023 and a cover flap 2027, a lens 2028, and 2029 laser head which is provided with a circular hole (not shown in FIG. 7) intermediate the top position of the laser head 2029 to constraint emission direction of the laser beam.

In the present embodiment, each of the light sources are provided inside a slot in the laser diode; each of the light sources are provided with a slotted upper light projecting mirror and a light receiving mirror; the light receiving mirror is provided the cast front of the light reflecting mirror, said opening receiving a light reflector is provided with a central; and each of said light projecting mirror and a light source above the light receiving slot preferably by means of a mirror can be mounted on the mirror holder on the base housing.

Specifically, as shown in FIG. 3, the full range of high-speed laser bar code scanning apparatus further includes a three mirror holder (301-1 includes a first mirror holder and second mirror holder and the third mirror 301-2 holder 301-3), the light source slot - corresponding to, in the light source are mounted above the corresponding slot; specifically, a first mirror holder provided in the first light source 301-1 slot 102- 1 above; a second mirror holder 301-2 is disposed over the second light source slot 102-2; 301-3 third mirror holder disposed above the third light source slot 102-3. Are provided on each of said mirror holder has a light projector and a light receiving mirror reflector; and a light receiving mirror arranged in front of said light projecting mirror, the mirror receiving light is provided with a central opening . Specifically, as shown, a first reflector mounted on the mirror holder 3 has a first light projecting 301-1 mirrors 302-1 and 303-1 of the first light receiving mirror; a second is mounted on the mirror holder 301-2 second light projecting mirror 302-2 and the second light receiving mirror 303-2; is attached to a third light projecting mirror 302-3 and the third mirror on the third light receiving mirror holder 301-3303- 3, and the first light receiving mirror 303-1, the second light receiving mirror 303-2 and the third receiving openings and supporting the position of the light projecting mirror central position of the light corresponding to the mirror 303-3, laser diode laser to the respective light projecting mirror received light beam reflected out through the respective openings.

The full range of high-speed laser bar code scanning apparatus further comprising a rotating mirror group 400, disposed at a central position of the recess 101, the group 400 comprises a rotating mirror 401 and a rotary electric machine disposed on said rotating electric machine 401 a polygon mirror 402 on the side of the polygon mirror 402 rotating at a predetermined speed V0 under the control of the motor 401 is rotating. Preferably, the rotating reflector 400 is a hexagonal prism mirror, disposed on one side of each cylindrical mirror. The hexagonal prism mirror includes a mirror disposed in a hexahedral outer surface of the rotary electric machine, and mutually adjacent mirrors at an angle of 120 degrees; the lower six-sided mirror in controlling the rotary electric machine V0 rotated at a preset speed.

Referring to FIG. 8, a schematic configuration of a rotating mirror group 3 provides a view of the invention; wherein, in FIGS. 8 (a) is a perspective structural view of a rotating mirror group, view (b) is a view ( a) rotating the side mirror group sectional view; FIG. (c) is a cross-sectional structural view of a rotating mirror group rotary electric machine.

In particular, the surface is provided by the six mirrors in the rotary polygon mirror 401 on the side of the motor 402, and adjacent mirror mutually an angle of 120 degrees. (A), the polygon mirror 402 is provided on an outer surface of the rotary electric machine 401, as a hexagonal columnar reflector, disposed on one side of each cylindrical mirror, i.e., the outer side surface of the columnar reflection mirror 8, like FIG. It is divided into six angles, each angle side of the mirror set.

Alternatively, a rotating mirror 400 set at the bottom of the rotary electric machine 401 also has a fixed conductor 403, for rotating the mirror group 400 is powered, preferably, the wire cable 403 implemented using FPC. In the present embodiment, any of a laser beam is projected onto the polygon mirror 402 with the rotation of the rotary electric machine 401 can be on each side of the polygon mirror 402 are reflected beam scan lines, and by controlling rotating motor speed V0 401 to control the scan speed of the bar code scanning apparatus of the present.

Incidentally, the polygon mirror according to an embodiment of the present invention 402 include, but are not limited to, a six-sided mirrors, according to actual needs to appropriately increase the number of mirror polygon mirror 402, and the rotating head machine 401 a mirror disposed to increase the number of scanning lines of the bar code scanning device, the effect of improving the recognition of the barcode treated test.

In the present embodiment, the full range of high-speed laser bar code scanning apparatus further comprises a ring out mirror set 500, a plurality of different angles of the mirror plate, namely ring out on the boundary side of the recess 100.

Preferably, the ring of mirrors column 500 includes three sets of rings row echelon mirror set on a boundary side of the recess 100 (respectively a first trapezoidal mirror group 501, the second mirror group 502 and trapezoidal the third group trapezoidal mirror 503), as shown, the position of each of the trapezoidal mirror and the light source group slotted 4 - correspondence, and each group comprises three trapezoidal mirror set having a predetermined inclination angle trapezoidal lens. In specific implementation, since each ladder lens has a certain inclination angle, the trapezoidal shape of the lens base optional to spend long lower than the bottom edge of the trapezoidal reflective lens.

In the present embodiment, the full range of high-speed laser bar code scanning apparatus further comprises three light receiving slot respectively disposed below the rotating mirror set, and into each other between adjacent angle of the light receiving slot 120 degrees, and the position of the light source slot - corresponding to. Specifically, as shown in FIG 4, the three light receiving slot respectively corresponding to the first slot 102-1 of the first light source light receiving slot 601-1; 102-2 and the second light source slot corresponding to the second light receiving slot 601-2, 102-3, and the third light source corresponding to the third slot light receiving slot 601-3; a photosensitive receiver is mounted on each of said light receiving slot, wherein each photosensitive receiver tube not shown in the drawings. In the present embodiment, the photosensitive receiver is a photodiode (Photodiode), which is capable to convert an optical signal into a photodetector current or voltage signal.

In the present embodiment, the light projecting procedure: each of said light projecting mirror disposed in the forward direction of the beam path of the projection, each of said light beam generated by the laser diode is projected to the corresponding light projecting mirror after passing through the receiving opening of the light reflecting mirror, the reflecting mirror is projected on the rotating group on the side of the reflecting mirror 400, and reflected by a 360 degree loop row is formed after the second reflection mirror group 500 light cover lattice network, to achieve full scan of the bar code.

In the light receiving process: the light receiving mirror reflected light will return to the bar code scanning mirror column on the ring side of the mirror set 500, and the ring out after reflection mirror group 500 pooled on the photosensitive receiver tube.

Referring to FIG. 9 is a schematic view of a scanning optical network line laser bar code scanning apparatus of a high-speed full FIG. 3 of the present invention provides the formation.

In the present embodiment, due to the different angles provided with three laser diodes, and laser twenty-two 120 is angled between the diode. , Preferably a rotating mirror group 400 disposed in the annular groove 101 is provided with a central position hexahedral mirror, the annular groove 101 is preferably provided with a side surface of the trapezoidal mirror 9 and corresponding to respective laser diodes, therefore, the present invention provides each laser source may be a laser bar code scanning apparatus forming 6 x 9 = 54 laser beams scan lines 9, scanning lines formed by three laser light sources each cover different angular regions, thereby forming a full 360 ° coverage grid-like optical network, improve the depth of field of the bar code scanning device, the scanning optical network in any direction can be detected bar code is scanned by the laser beam, and thus almost no blind areas exist.

Further, in the present embodiment, by controlling the rotation speed of the motor 401 to increase the scanning speed of the laser bar code scanning apparatus. Specifically, when the rotational speed of the rotary electric machine 401 V0 30 cycles / sec, the scanning speed Vs of the bar code scanning apparatus of the present invention is provided for the 4860 lines / sec. Which is calculated as: Vs = 54 lines / (circumferential Light source) X 30 cycles / second light source 3 = 4860 lines / s.

Referring to FIG. 10, a schematic view of the base structure is full-speed laser bar code scanning apparatus of the present embodiment provided by the invention, FIG. 3 embodiment.

Further, full-speed laser bar code scanning apparatus of the present invention further provides a data processor comprising a barcode;

The barcode data processor for receiving said electrical signal converted by the photosensitive receiver, the electrical signal data and the decoded acquisition information is stored scan the barcode.

In the present embodiment, preferably, be provided with a PCB (Printed Circuit Board, PCB) at the bottom of the base housing 100, and the bar code data processor and its associated peripheral circuits are integrated in the plate 700 on the PCB. Specifically embodiment, the PCB board 700 may be further provided with a plurality of data transmission interface 10 as shown by the data network ports 701 to 703, bar code information may be transmitted through the network cable barcode data processor to an external computer to read for further analysis and use; the power interface 704 and further sets the laser bar code scanning apparatus of the present invention on the PCB board 700.

When particular embodiments, preferably the bar code data is 32-bit ARM processor processor. ARM processor is a 32 - bit RISC (Reduced Instruction Set Computer, barrel finishing instruction set) processor architecture, small size, low power consumption, low cost, high performance advantage.

Further, in the present embodiment, the full-speed laser bar code scanning apparatus further comprises a housing structure 800, shown in front of the base 800 of the housing structure employed for the laser beam 11 through the transparent normal material, wherein a right side view (a) of FIG. 11 is a seating structure housing a front view, FIG. 11 (b) is the base structure of the housing. Base housing structure 800 can protect the bar code scanning device for each structure, to avoid being damaged during use.

Specifically embodiment, the laser bar code scanning apparatus may be further provided with a buzzer, the buzzer sounds as the tips is determined whether a barcode is scannable basis, such as: when the bar code is scanned, The buzzer will sound a buzzer sound 2:00 another scanning errors. The laser bar code scanning apparatus may also be provided a wireless communication module, barcode data barcode data processor via the wireless communication module may be read into a radio signal, transmitted to the external processing apparatus used for further analysis or processing.

Full-speed laser bar code scanning apparatus of the present invention provides, in a base housing is provided by four weeks every 120 degrees on each of a laser light source (laser diode), and supporting the light projecting mirror corresponding to each laser light source, receiving light reflector, rotation of the optical arrangement of the mirror group and cycloalkyl group like a mirror column, the structure of the conventional scanning apparatus has been improved, the laser beam after multiple reflections, preferably derived from the scanning lines 54, the scanning lines increases and forming a number of full 360-degree optical network scanning line, the scanning line to be tested is placed barcode optical network without deliberately aligned with the scanning line can be identified, the effect of improving the barcode recognition; and by controlling the rotation reflection lens group motor speed to control the rotational speed of the scanning apparatus of the present, therefore, full-speed laser bar code scanning apparatus of the present invention is provided having a wide scanning range, scanning speed, and the high number of lines is good barcode recognition effect and the like.

The above embodiment is a preferred embodiment of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, can make various improvements and modifications, improvements and modifications also depend the scope of the present invention.

Claims

Claims
A full-high-speed laser bar code scanning apparatus comprising:
A base housing; the housing is provided with a recess intermediate the base, the housing base is provided with four weeks into each other around said light source interposed between the slotted three grooves, and a light source adjacent slot angle of 120 degrees;
Three laser diodes, respectively, by a mounting assembly - in the light source corresponding to a fixed open slot, respectively, for generating a light beam at a predetermined beam path of the projection projecting out;
Three mirror holder, the light source slot - corresponding to, in the light source are mounted above the corresponding slot; each of the reflective mirror are respectively provided with a light projecting and a light receiving mirror on the mirror holder; and the light receiving mirror arranged in front of said light projecting mirror, the mirror receiving light is provided with a central opening;
A rotating mirror set disposed at a central position of said recess, said rotating mirror comprises a rotating electric machine and set a polygon mirror provided on the side surface of the rotary electric machine, the rotary electric machine of the multi-faceted mirror rotated at a predetermined speed under control;
A ring out of mirrors, a plurality of different angles of the mirror plate, namely, on the boundary side ring out of the groove;
And, three light receiving slot respectively disposed between the light receiving slot below the rotary mirror group, and adjacent angled 120 degrees, and the position of the light source slot - corresponding to; mounted on each of said light receiving slot has a photosensitive receiver;
After the advancing direction of the beam path of the projection light projection disposed in said mirror, each of said laser diode light beam generated by the corresponding projection projected to reflection mirror, passes through the receiving opening of the light reflecting mirror projection on the rotary mirror side mirror group, to form a full 360 degree coverage network lattice light reflected by the secondary mirror of the ring out of the group, in order to achieve full scan of the bar code;
The light receiving mirror reflected light will return to the bar code scanning said ring out on one mirror of the mirror group, and pooled after the reflection mirror group ring out of the receiving tube on the photosensitive.
2, as claimed in full-speed laser bar code scanning apparatus according to claim 1, wherein the wavelength of the light beams each emitted from the laser diode is 650 nm.
3, as claimed in full-speed laser bar code scanning apparatus according to claim 1, wherein said polygon mirror is provided on the side surface of a rotating electric machine hexahedral mirrors, and the mirrors adjacent to the cross angle of 120 degrees.
4, as claimed in full-speed laser bar code scanning apparatus according to claim 1, characterized in that the ring out comprises a three mirror ring group row echelon mirror set on a boundary side of the groove, each set trapezoidal mirror position set with the source slot - corresponding to, and trapezoidal mirror set each comprising a lens having a predetermined three trapezoid inclination angle.
5, as claimed in full-speed laser bar code scanning apparatus according to claim 1, wherein said bar code scanning apparatus scanning speed is 4860 lines / sec.
Full speed laser barcode scanning device 6, as described in any one of claims 1 to 5, wherein said bar code scanning means for one-dimensional bar and / or two-dimensional bar code scanning recognition.
7, as claimed in full-speed laser bar code scanning apparatus according to claim 6, characterized in that said apparatus further comprises a barcode scanning bar code data processor;
The barcode data processor for receiving said electrical signal converted by the photosensitive receiver, the electrical signal data and the decoded acquisition information is stored scan the barcode.
8, as claimed in full-speed laser bar code scanning apparatus according to claim 7, wherein said cartridge assembly mounting comprises a mating slot of the light source, and the laser diode fixed to the deck more accessories on.
9, such as full high-speed laser bar code scanning apparatus according to claim 8, wherein said bar code data is 32-bit ARM processor processor.
10, as claimed in full-speed laser bar code scanning apparatus according to claim 9, characterized in that said apparatus further comprises a bar code scanner housing structure, the front of the seat shell structure employed for the laser beam through the transparent normal material.
PCT/CN2014/072097 2014-02-13 2014-02-14 All-directional high-speed laser bar code scanning apparatus WO2015120615A1 (en)

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