CN106022198B - Laser bar code scanning means and laser bar code scan method - Google Patents
Laser bar code scanning means and laser bar code scan method Download PDFInfo
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- CN106022198B CN106022198B CN201610542850.3A CN201610542850A CN106022198B CN 106022198 B CN106022198 B CN 106022198B CN 201610542850 A CN201610542850 A CN 201610542850A CN 106022198 B CN106022198 B CN 106022198B
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- bar code
- laser
- laser bar
- microscope group
- code scan
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods 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
- G06K7/10712—Fixed beam scanning
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods 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
- G06K7/10821—Methods 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
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
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Abstract
The present invention discloses a kind of laser bar code scanning means, including：Laser bar code scan pattern switch unit, motor speed sensor, induction mark, laser, control unit, motor and light path reflector element；Wherein, laser bar code scan pattern switch unit, for switching all fronts or single line laser bar code scan pattern；Motor speed sensor, the position of the wherein face speculum for detecting motor rotary speed and detection rotation microscope group；Induction mark, for providing position signal of the rotation microscope group wherein face speculum in rotation, and the velocity measuring reference signal for providing rotation microscope group rotation for motor speed sensor；Control unit, for controlling Laser emission, motor driving；Light path reflector element, for reflecting to form all fronts laser bar code scanning ray or single line laser bar code scan light.Invention additionally discloses a kind of laser bar code scan methods.Technical scheme of the present invention is intended to that a laser bar code scanning means is made to have two kinds of laser bar code scan patterns.
Description
Technical field
The present invention relates to laser bar code scanning technique field more particularly to a kind of laser bar code scanning means and laser bar code
Scan method.
Background technology
During bar code is widely used in product stream management and control, therefore, the utilization of laser bar code scanning means also day
It is beneficial extensive.
According to the difference of laser bar code scan pattern, laser bar code scanning means is segmented into single line laser bar code scan dress
It sets and all fronts laser bar code scanning means two types.In the prior art, a kind of laser bar code scanning means usually only has one
Kind laser bar code scan mode.
Above-mentioned technology there are the drawbacks of be：Laser bar code scan pattern is single.
Invention content
The main object of the present invention is to provide a kind of laser bar code scanning means and laser bar code scan method, it is intended to solve
The single defect of laser bar code scan pattern in the prior art.
In order to achieve the object, the laser bar code scanning means proposed by the present invention, including：Laser bar code scan pattern
Switch unit, motor speed sensor, induction mark, laser, control unit, motor and light path reflector element；Wherein,
The laser bar code scan pattern switch unit is used for single line laser bar code scan pattern switching to all fronts laser
Bar code scan pattern, and all fronts laser bar code scan instruction is sent out, or all fronts laser bar code scan pattern is switched into single line and is swashed
Optical bar code scan pattern, and send out the instruction of single line laser bar code scan；
The motor speed sensor, the speed for detecting the rotation of motor-driven rotation microscope group, and it is described for detecting
Rotate the position of a wherein face speculum for microscope group；
The induction mark, is arranged on a wherein face speculum described in the rotation microscope group, and the induction mark is used
Position signal when a wherein face speculum is in rotation described in the offer rotation microscope group, and for being the motor speed
Sensor provides the velocity measuring reference signal of the rotation microscope group rotation；
The laser, for sending out laser；
Described control unit drives the rotation microscope group to rotate and control turning for the motor for controlling the motor
Speed, collected in the motor speed sensor motor rotating speed it is too high or too low when, by the rotational speed regulation of the motor
To preset rotating speed；For controlling the laser transmitting laser and closing laser, referred to according to all fronts laser bar code scanning
It enables the control laser continuously send out laser, and is instructed according to the single line laser bar code scan, in the motor speed
Sensor controls the laser when collecting the signal of the induction mark and sends out laser, is not collecting the induction mark
Signal when, close the laser；
The light path reflector element, including the rotation microscope group and fixed microscope group；The rotation microscope group is driven by the motor
Dynamic rotation, the laser reflection that the rotation microscope group is used to continuously to send out, which is formed at multi-thread laser to the fixed microscope group, completely to swash
Optical bar code scanning ray；The rotation microscope group is used to only collect the letter of the induction mark in the motor speed sensor
Number when the laser reflection that sends out to the centre of the fixed microscope group reflecting surface form single line laser bar code scan light.
Preferably, the induction is identified as magnet.
Preferably, described control unit includes main processor circuit, laser control circuit and circuit for controlling motor；It is described to swash
Optical bar code scan pattern switch unit, the laser control circuit, circuit for controlling motor, the motor speed sensor respectively with
The main processor circuit connection, the laser control circuit are connect with the laser.
Preferably, described control unit further includes photoelectricity built-up circuit, and the photoelectricity built-up circuit is used for will be anti-from bar code
The optical information being emitted back towards switchs to electric signal.
Preferably, if the rotation microscope group includes being located on the first speculum of dried noodle of its shaft, first is anti-described in each face
The reflecting surface for penetrating mirror deviates from shaft setting respectively；The rotation microscope group is set in the shaft.
Preferably, if the fixed microscope group includes being sequentially connected and the second speculum of the dried noodle of arc-shaped arrangement, each face institute
The reflecting surface for stating the second speculum is set to the concave side of the arc and in face of the reflecting surface of the rotation microscope group.
Preferably, the fixed microscope group includes five or six reflectings surface.
Preferably, the light path reflector element further includes plane mirror, and the plane mirror is for sending out the laser
The laser reflection gone out is to the rotation microscope group.
Preferably, the light path reflector element further includes curved mirror, and the plane mirror is set to the concave side of the curved mirror,
The curved mirror is for converging the laser being reflected back from bar code.
The present invention also provides a kind of laser bar code scan methods, include the following steps：
By single line laser bar code scan pattern switching to all fronts laser bar code scan pattern, and sends out all fronts laser bar code and sweep
Instruction is retouched, or all fronts laser bar code scan pattern is switched into single line laser bar code scan pattern, and sends out single line laser bar code
Scan instruction；
Motor speed sensor detects the rotating speed of motor-driven rotation microscope group rotation, when the motor speed is too high or too low
When, by the rotational speed regulation of the motor to preset rotating speed；
Laser, which is controlled, according to all fronts laser bar code scan instruction continuously sends out laser；According to the single line laser item
Code scan instruction only controls the laser in the signal of the induction mark on collecting the rotation microscope group and sends out laser,
When not collecting the signal of the induction mark, the laser is closed；
The laser reflection continuously sent out is formed all fronts laser bar code by the rotation microscope group at multi-thread laser to fixed microscope group
Scanning ray；By the laser reflection only sent out when the motor speed sensor collects the signal of the induction mark to institute
The reflecting surface for stating the centre of fixed microscope group forms single line laser bar code scan light.
In technical scheme of the present invention, the speculum of the laser continuous emission excimer laser to the rotation microscope group, or only
When the motor speed sensor collects the signal of the induction mark, the laser just emits laser to the rotation
A wherein face speculum for microscope group, the rotation microscope group is by the laser reflection continuously emitted at multi-thread laser to the fixation
Microscope group forms all fronts laser bar code scanning ray, or the letter for the induction mark only being collected in the motor speed sensor
Number when the laser reflection that sends out to the centre of the fixed microscope group reflecting surface form single line laser bar code scan light, the present invention
Technical solution the emission mode of laser is combined with the rotation of the rotation microscope group, make a laser bar code scanning dress
It sets and has two kinds of laser bar code scan patterns.
Description of the drawings
It, below will be to embodiment or existing skill in order to illustrate more clearly of the present embodiment or technical solution in the prior art
Attached drawing is briefly described needed in art description, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
Structure shown in these attached drawings obtains other attached drawings.
Fig. 1 is the dimensional structure diagram of the laser bar code scanning means of the present invention；
Fig. 2 is the high-level schematic functional block diagram of the laser bar code scanning means of the present invention；
Fig. 3 is laser bar code scanning of the laser bar code scanning means shown in FIG. 1 under the laser bar code scan pattern of all fronts
Process schematic；
Fig. 4 is that the laser bar code scanning means of the present invention is formed by the schematic diagram of all fronts laser bar code scanning ray；
Fig. 5 is laser bar code scanning of the laser bar code scanning means shown in FIG. 1 under single line laser bar code scan pattern
Process schematic；
Fig. 6 is another laser bar code of the laser bar code scanning means shown in fig. 5 under single line laser bar code scan pattern
Scanning process schematic diagram；
Fig. 7 is that the laser bar code scanning means of the present invention is formed by the schematic diagram of single line laser bar code scan light；
Fig. 8 is the flow diagram of the laser bar code scan method of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Laser bar code scanning means | 110 | Laser |
| 130 | Light path reflector element | 131 | Rotate microscope group |
| 132 | First speculum | 133 | Fixed microscope group |
| 134 | Second speculum | 135 | Plane mirror |
| 136 | Curved mirror | 150 | Pedestal |
| 151 | Induction mark | ||
| 1 | Laser bar code scan pattern switch unit | 2 | Main processor circuit |
| 3 | Motor speed sensor | 4 | Laser control circuit |
| 5 | Circuit for controlling motor | 6 | Photoelectricity built-up circuit |
| 7 | Control unit |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Below in conjunction with the attached drawing in the present embodiment, the technical solution in the present embodiment is clearly and completely described,
Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts,
It shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used for solving in the present embodiment
Relative position relation, motion conditions etc. between each component under a certain particular pose (as shown in the picture) are released, if this is specific
When posture changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
It indicates or implies its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, can also be
Electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements or two
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of the term in the present invention.
In addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Logical technical staff can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection domain within.
A kind of laser bar code scanning means 100 of present invention proposition and laser bar code scan method.
Please refer to Fig. 1 to Fig. 7, the laser bar code scanning means 100 proposed by the present invention, including：Laser bar code scans
Mode switch element 1, motor speed sensor 3, induction mark 151, laser 110, control unit 7, motor (not shown) and
Light path reflector element 130；Wherein,
The laser bar code scan pattern switch unit 1, for swashing single line laser bar code scan pattern switching to all fronts
Optical bar code scan pattern, and all fronts laser bar code scan instruction is sent out, or all fronts laser bar code scan pattern is switched into single line
Laser bar code scan pattern, and send out the instruction of single line laser bar code scan；
The motor speed sensor 3, the speed rotated for detecting the motor-driven rotation microscope group 131, and be used for
Detect the position of a wherein face speculum for the rotation microscope group 131；
The induction mark 151, is arranged on a wherein face speculum described in the rotation microscope group 131, the induction
Mark 151 is used to provide position signal of the wherein face speculum for the rotation microscope group 131 in rotation, and for being
The motor speed sensor 3 provides the velocity measuring reference signal that the rotation microscope group 131 rotates；
The laser 110, for sending out laser；
Described control unit 7 drives the rotation microscope group 131 to rotate and control the motor for controlling the motor
Rotating speed, collected in the motor speed sensor 3 motor rotating speed it is too high or too low when, by the rotating speed tune of the motor
It saves to preset rotating speed；Emit laser and closing laser for controlling the laser 110, is swept according to all fronts laser bar code
It retouches instruction and controls the laser 110 and continuously send out laser, and instructed according to the single line laser bar code scan, in the electricity
Machine speed probe 3 controls the laser 110 when collecting the signal of the induction mark 151 and sends out laser, is not acquiring
When identifying 151 signal to the induction, the laser 110 is closed；
The light path reflector element 130, including the rotation microscope group 131 and fixed microscope group 133；The rotation microscope group 131
Driven and rotated by the motor, the rotation microscope group 131 for will the laser reflection that continuously send out at multi-thread laser to described solid
Horizontal glass group 133 forms all fronts laser bar code scanning ray；The rotation microscope group 131 is used for will be only in the motor speed sensor
3 collect the reflecting surface shape of centre of the laser reflection sent out when the signal of the induction mark 151 to the fixed microscope group 133
At single line laser bar code scan light.
In the present embodiment, the rotation microscope group 131 includes the first speculum 132 of four sides, and the fixed microscope group 133 includes
The second speculum 134 of five faces (or six faces).
The laser bar code scan pattern switch unit 1 is switching circuit.
The induction mark 151 is magnet.
Referring to Fig. 2, the working method of the laser bar code scanning means 100 is as follows：
1, all fronts laser bar code scan method：The all fronts laser bar code scan instruction is received, described control unit 7 is controlled
Making the motor drives the rotation microscope group 131 to rotate, and the motor speed sensor 3 passes through 151 detection of induction mark
The rotating speed of the motor, the velocity measuring reference signal that the induction mark 151 is rotated for providing the rotation microscope group 131,
And the tach signal of the motor is sent to the main processor circuit 2, when 3 collected institute of the motor speed sensor
State motor rotating speed it is too high or too low when, the main processor circuit 2 is by circuit for controlling motor 5 by the rotating speed tune of the motor
It saves to preset range；The main processor circuit 2 is by controlling the laser control circuit 4 to drive the laser 110 to connect
Supervention goes out laser, and Laser emission is extremely located at the plane mirror 135 at 136 center of curved mirror, the plane mirror by the laser 110
135 again extremely have laser reflection the rotation microscope group 131 of first speculum 132 on four sides to form four laser rays,
The rotation microscope group 131 is again by laser reflection to the fixed microscope group with five faces (or six faces) described second speculum 134
133 to form all fronts laser bar code scanning ray with 20 (or 24) laser rays, and all fronts laser bar code is swept
It retouches light to emit to bar code, the curved mirror 136 is used to converge the laser being reflected back from bar code to photoelectricity built-up circuit 6, described
Photoelectricity built-up circuit 6 is used to the optical information being reflected back from bar code switching to electric signal.
2, single line laser bar code scanning method：The single line laser bar code scan instruction is received, described control unit 7 is controlled
Making the motor drives the rotation microscope group 131 to rotate, and the motor speed sensor 3 passes through 151 detection of induction mark
The rotating speed of the motor, the velocity measuring reference signal that the induction mark 151 is rotated for providing the rotation microscope group 131,
And the tach signal of the motor is sent to the main processor circuit 2, when 3 collected institute of the motor speed sensor
State motor rotating speed it is too high or too low when, the main processor circuit 2 is by circuit for controlling motor 5 by the rotating speed tune of the motor
It saves to preset range；The laser is controlled when the motor speed sensor 3 collects the signal of the induction mark 151
110 send out in laser irradiation to the plane mirror 135 positioned at 136 center of the curved mirror, and the rotation microscope group 131 is persistently revolved
Turn, the induction mark 151 is arranged on a wherein face speculum for the rotation microscope group 131, is sensed in the motor speed
When device 3 does not collect the signal of the induction mark 151, the laser control circuit 4 controls the closing of the laser 110, together
Shi Suoshu rotate microscope group 131 other thrihedral reflector can not reflection laser, when the rotation microscope group 131 will be only in the motor
When speed probe 3 collects the induction and identifies 151 signal, the laser reflection that sends out to the centre of the fixed microscope group it is anti-
Face is penetrated, that is, reflexes to five reflectings surface or that reflecting surface of the centre of six reflectings surface of the fixed microscope group 133, forms institute
Single line laser bar code scan light is stated, the single line laser bar code scan light emits to bar code, and the curved mirror 136 is used for
Converge the light that the laser being reflected back from bar code is used to be reflected back from bar code to photoelectricity built-up circuit 6, the photoelectricity built-up circuit 6
Information switchs to electric signal.
In technical scheme of the present invention, the reflection of 110 continuous emission excimer laser of the laser to the rotation microscope group 131
Mirror, or only when the motor speed sensor 3 collects the signal of the induction mark 151, the laser 110 just emits
A wherein face speculum described in laser to the rotation microscope group 131, the laser reflection that the rotation microscope group 131 will continuously emit
All fronts laser bar code scanning ray is formed at multi-thread laser to the fixed microscope group 133, or will only be sensed in the motor speed
Device 3 collects the reflecting surface of centre of the laser reflection sent out when the signal of the induction mark 151 to the fixed microscope group 133
Form single line laser bar code scan light, technical scheme of the present invention is by the emission mode of laser and the rotation microscope group 131
Rotation is combined, and a laser bar code scanning means 100 is made to have two kinds of laser bar code scan patterns.
Preferably, described control unit 7 includes main processor circuit 2, laser control circuit 4 and circuit for controlling motor 5；Institute
State laser bar code scan pattern switch unit 1, the laser control circuit 4, circuit for controlling motor 5, motor speed sensing
Device 3 is connect with the main processor circuit 2 respectively, and the laser control circuit 4 is connect with the laser 110.
The motor speed sensor 3 is used to detect the turned position of the rotating speed and the rotation microscope group 131 of the motor.
The circuit for controlling motor 5 is passed for controlling motor high speed rotation in preset rotation speed, the motor speed
After sensor 3 detects the rotating speed of the motor, tach signal is sent to the main processor circuit 2, when the rotating speed of the motor
When excessive, the main processor circuit 2 is turned down the rotating speed of the motor by the circuit for controlling motor 5, when the motor
Rotating speed it is too small when, the rotating speed of the motor is turned up by the circuit for controlling motor 5 for the main processor circuit 2 so that
The rotating speed of the motor keeps stablizing.
The motor speed sensor 3 is with the induction on a wherein face reflecting surface described in the rotation microscope group 131
The velocity measuring reference signal that mark 151 is rotated as the rotation microscope group 131.
The motor speed sensor 3 is Hall element, for detecting the induction mark in the rotation microscope group 131
151 signal.
The induction mark 151 is magnet, the turned position for marking the rotation microscope group 131, the induction mark
151 turn to when being detected by the motor speed sensor 3, and laser is sent out, and the motor speed sensor 3 cannot detect
When induction mark 151, laser shutdown.
Preferably, described control unit 7 further includes photoelectricity built-up circuit 6, and the photoelectricity built-up circuit 6 is used for will be from bar code
The optical information being reflected back switchs to electric signal.
Preferably, if the rotation microscope group 131 includes being located on the first speculum of dried noodle 132 of its shaft, described in each face
The reflecting surface of first speculum 132 deviates from the shaft and is arranged respectively；The rotation microscope group 131 is set in the shaft.
Each reflecting surface of the rotation microscope group 131 goes to the laser reflection that receives the position of laser and will receive successively
To the reflecting surface of the fixed microscope group 133.The rotation microscope group 131 is in lasting spinning motion, can just make each of which
First speculum 132 receives the laser.
The first speculum 132 should be different from the angle of the pedestal 150 described in per face, so that first speculum 132
The spaced a plurality of laser bar code scanning ray can be formed on each reflecting surface of the fixed microscope group 133.
Preferably, if the fixed microscope group 133 includes being sequentially connected and the second speculum of the dried noodle of arc-shaped arrangement 134,
The reflecting surface of second speculum 134 described in each face is set to the concave side of the arc and in face of the reflection of the rotation microscope group 131
Face.
Preferably, the fixed microscope group 133 includes five or six reflectings surface.
The present invention is not intended to limit the quantity of first speculum 132 and second speculum 134, and any amount is same
Reason is included within protection scope of the present invention.
In general, single line laser bar code scan light is needed with bar code in vertical state or state close to the vertical shape, ability
It successfully sweeps and takes bar code information.Technical scheme of the present invention can be such that the laser bar code of the single line laser bar code scan light scans
Angle is kept fixed, and the single line laser that second speculum 134 among the fixed microscope group 133 projects
Bar code scan light can make the single line laser bar code scan light launched meet the laser bar code scanning custom of people, carry
Height successfully reads the probability of the bar code information.
Preferably, the light path reflector element 130 further includes plane mirror 135, and the plane mirror is used to swash described
The laser reflection that light device 110 is sent out is to the rotation microscope group 131.
The plane mirror 135 can be used for adjusting incident angle of the laser to the rotation microscope group 131.
Preferably, the light path reflector element 130 further includes curved mirror, and the plane mirror 135 is set to the curved mirror
Concave side, the curved mirror is for converging the laser being reflected back from bar code.
Preferably, the laser bar code scan pattern switch unit 1 can be controlled by button (not shown).
The button is convenient for switching the laser bar code scan pattern of the laser bar code scanning means 100, in the present embodiment
In, the button can be one, press the button and send out switching signal, to realize the light of laser bar code scan pattern
Switching.
Certainly, the button may be set to be two, one of them is single line laser bar code scan button, another is
All fronts laser bar code scans button, is also similarly included within protection scope of the present invention.
The laser bar code scanning means 100 further includes pedestal 150, the rotation microscope group 131 and the fixed microscope group 133
It is connected to the pedestal 150.
Referring to Fig. 8, the present invention also provides a kind of laser bar code scan method, include the following steps：
Step S20 by single line laser bar code scan pattern switching to all fronts laser bar code scan pattern, and sends out and completely swashs
Optical bar code scan instruction, or all fronts laser bar code scan pattern is switched into single line laser bar code scan pattern, and send out single line
Laser bar code scan instruction.
Specifically, when needing replacing laser bar code scan pattern, operator is cut by the laser bar code scan pattern
It changes unit 1 and sends out the switching signal, in the present embodiment, the laser bar code scan pattern switch unit 1 can be by setting
Button is set to be manipulated, operator by by the tactile button to send out the switching signal, by touching the primary button to cut
The laser bar code scan pattern is changed, when needing to switch back, switching can be realized by the tactile button again.
Certainly, the button can also be arranged to two, the respectively described single line laser bar code scan button or described complete
Line laser bar code scan button when being in all fronts laser bar code scan pattern, is swept by the primary single line laser bar code is touched
Laser bar code scan pattern can be switched to the single line laser bar code scan pattern by retouching button；Similarly, it is in the single line
When laser bar code scan pattern, laser bar code scan pattern can be switched by the primary all fronts laser bar code scanning button is touched
To all fronts laser bar code scan pattern.
Step S30, motor speed sensor 3 detect the rotating speed of 131 rotation of motor-driven rotation microscope group, when the motor turns
When speed is too high or too low, by the rotational speed regulation of the motor to preset rotating speed；
Step S40 controls laser 110 according to all fronts laser bar code scan instruction and continuously sends out laser；According to institute
The instruction of single line laser bar code scan is stated, only controls institute in the signal of the induction mark 151 on collecting the rotation microscope group 131
It states laser 110 and sends out laser, when not collecting the signal of the induction mark 151, close the laser 110；
Step S60, the rotation microscope group 131 is by the laser reflection continuously sent out at multi-thread laser to fixed 133 shape of microscope group
Help line laser bar code scan light；By only the motor speed sensor 3 collect it is described induction mark 151 signal when
The reflecting surface of the laser reflection sent out to the centre of the fixed microscope group 133 forms single line laser bar code scan light.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (10)
1. a kind of laser bar code scanning means, which is characterized in that including：Laser bar code scan pattern switch unit, motor speed
Sensor, induction mark, laser, control unit, motor and light path reflector element；Wherein, the laser bar code scan pattern
Switch unit is used for single line laser bar code scan pattern switching to all fronts laser bar code scan pattern, and sends out all fronts laser
Bar code scan instructs, or all fronts laser bar code scan pattern is switched to single line laser bar code scan pattern, and sends out single line and swash
Optical bar code scan instruction；The motor speed sensor, the speed for detecting the rotation of motor-driven rotation microscope group, and for examining
Survey the position of a wherein face speculum for the rotation microscope group；It is arranged described in the rotation microscope group in induction mark
In on a face speculum, the induction mark is for providing the wherein face speculum of the rotation microscope group in rotation
Position signal, and the velocity measuring reference signal for providing the rotation microscope group rotation for the motor speed sensor；Institute
Laser is stated, for sending out laser；Described control unit drives the rotation microscope group rotation and control for controlling the motor
The rotating speed of the motor, collected in the motor speed sensor motor rotating speed it is too high or too low when, by the electricity
The rotational speed regulation of machine is to preset rotating speed；For controlling the laser transmitting laser and closing laser, swashed according to all fronts
Optical bar code scan instruction controls the laser and continuously sends out laser, and is instructed according to the single line laser bar code scan,
The motor speed sensor controls the laser when collecting the signal of the induction mark and sends out laser, is not collecting
When the signal of the induction mark, the laser is closed；The light path reflector element, including the rotation microscope group and fixed mirror
Group；The rotation microscope group is driven by the motor to be rotated, and the laser reflection that the rotation microscope group is used to continuously to send out is at multi-thread
Laser to the fixed microscope group forms all fronts laser bar code scanning ray；The rotation microscope group is used for will be only in the motor speed
Sensor collects the reflecting surface shape of centre of the laser reflection sent out when the signal of the induction mark to the fixed microscope group
At single line laser bar code scan light；The rotation microscope group includes speculum.
2. laser bar code scanning means as described in claim 1, which is characterized in that the induction is identified as magnet.
3. laser bar code scanning means as described in claim 1, which is characterized in that described control unit includes primary processor electricity
Road, laser control circuit and circuit for controlling motor；The laser bar code scan pattern switch unit, the laser control circuit,
Circuit for controlling motor, the motor speed sensor are connect with the main processor circuit respectively, the laser control circuit with
The laser connection.
4. laser bar code scanning means as claimed in claim 3, which is characterized in that described control unit further includes photoelectricity switching
Circuit, the photoelectricity built-up circuit are used to the optical information being reflected back from bar code switching to electric signal.
5. the laser bar code scanning means as described in any one of Claims 1-4, which is characterized in that the rotation microscope group
If the first speculum of dried noodle including being located on its shaft, the reflecting surface of the first speculum described in each face deviates from the shaft respectively
Setting；The rotation microscope group is set in the shaft.
6. laser bar code scanning means as claimed in claim 5, which is characterized in that the fixed microscope group include be sequentially connected and
If the second speculum of dried noodle of arc-shaped arrangement, the reflecting surface of the second speculum described in each face be set to the arc concave side and
In face of the reflecting surface of the rotation microscope group.
7. laser bar code scanning means as claimed in claim 6, which is characterized in that the fixed microscope group includes five or six
Reflecting surface.
8. laser bar code scanning means as claimed in any of claims 1 to 4, which is characterized in that the light path is anti-
It further includes plane mirror to penetrate unit, the laser reflection that the plane mirror is used to send out in the laser to the rotation microscope group.
9. laser bar code scanning means as claimed in claim 8, which is characterized in that the light path reflector element further includes curved surface
Mirror, the plane mirror are set to the concave side of the curved mirror, and the curved mirror is for converging the laser being reflected back from bar code.
10. a kind of laser bar code scan method, which is characterized in that include the following steps：Single line laser bar code scan pattern is cut
All fronts laser bar code scan pattern is shifted to, and sends out all fronts laser bar code scan instruction, or by all fronts laser bar code scan pattern
Single line laser bar code scan pattern is switched to, and sends out the instruction of single line laser bar code scan；
Motor speed sensor detects the rotating speed of motor-driven rotation microscope group rotation, when the motor speed is too high or too low,
By the rotational speed regulation of the motor to preset rotating speed；
Laser, which is controlled, according to all fronts laser bar code scan instruction continuously sends out laser；It is swept according to the single line laser bar code
Instruction is retouched, only controlling the laser in the signal of the induction mark on collecting the rotation microscope group sends out laser, is not having
When having the signal for collecting the induction mark, the laser is closed；The laser reflection that the rotation microscope group will continuously be sent out
All fronts laser bar code scanning ray is formed at multi-thread laser to fixed microscope group；Will only institute be collected in the motor speed sensor
The reflecting surface of the laser reflection sent out when the signal for stating induction mark to the centre of the fixed microscope group forms single line laser bar code
Scanning ray；
The single line laser bar code scan light or all fronts laser bar code scanning ray emit to bar code, and curved mirror is converged from bar code
Optical information is switched to electric signal by the laser being reflected back to photoelectricity built-up circuit.
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| CN106897646A (en) * | 2017-01-17 | 2017-06-27 | 珠海格力电器股份有限公司 | The input method and device of bar code information |
| DE102017127420A1 (en) * | 2017-11-21 | 2019-05-23 | Sick Ag | Polygon scanner and method for capturing objects in a surveillance area |
| CN108465939B (en) * | 2018-02-09 | 2020-10-27 | 深圳市华星光电半导体显示技术有限公司 | Laser etching device and laser etching method thereof |
| CN111810916A (en) * | 2020-08-05 | 2020-10-23 | 摩登汽车(盐城)有限公司 | Automobile illumination adjusting device |
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