阅读说明：本技术 一种智能投影辅助拣选工作站及其拣选方法 (Intelligent projection auxiliary picking workstation and picking method thereof ) 是由 陈定桔 莫宏智 陈定钰 林天升 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种智能投影辅助拣选工作站及其拣选方法,包括激光雷达、超短焦投影机、工控机、支架和货架,所述激光雷达与超短焦投影机固定在支架的顶壁上,所述工控机设置在支架的顶面上,工控机与激光雷达与超短焦投影机组成拣选系统；采用单个动力输出,提供升降以及伸缩的动力,并且本发明将升降和伸缩结合在一起,抬身杆升降的同时完成抬身杆伸长或者缩短,能够有效的将货架驱动其下降时抬身杆的伸长,方便插入货架下方,抬身杆上升时,货架上升移动至AGV小车上方,减少其占地面积,实现快速、高效、具有防错功能的智慧性AGV货到人拣选业务。较少AGV小车以在工作站的停留时间,提供整个物流仓库的拣选效率。(The invention discloses an intelligent projection auxiliary picking workstation and a picking method thereof, and the intelligent projection auxiliary picking workstation comprises a laser radar, an ultra-short-focus projector, an industrial personal computer, a bracket and a goods shelf, wherein the laser radar and the ultra-short-focus projector are fixed on the top wall of the bracket; the invention adopts single power output to provide lifting and stretching power, and the lifting and stretching are combined together, the lifting rod is lifted and is extended or shortened at the same time, the goods shelf can be effectively driven to be lowered by the lifting rod to be extended, the lifting rod is conveniently inserted below the goods shelf, when the lifting rod is lifted, the goods shelf is lifted and moved to the upper part of an AGV trolley, the floor area of the goods shelf is reduced, and the intelligent AGV goods-to-human sorting service with the error prevention function, which is rapid and efficient, is realized. Fewer AGV carts to stay at the workstation for a period of time that provides for picking efficiency throughout the logistics warehouse.)

1. The utility model provides an intelligence projection is supplementary selects workstation which characterized in that: the system comprises a laser radar (1), an ultra-short-focus projector (2), an industrial personal computer (3), a support (5) and a shelf (6), wherein the laser radar (1) and the ultra-short-focus projector (2) are fixed on the top wall of the support (5);

the industrial personal computer (3) is arranged on the top surface of the bracket (5), and the industrial personal computer (3), the laser radar (1) and the ultra-short-focus projector (2) form a picking system;

goods shelves (6) are removed to support (5) through assembly subassembly (8) on AGV dolly (7) and are selected the face, select the system and to goods shelves (6) projection and remind.

2. The intelligent projection auxiliary picking workstation according to claim 1, wherein the industrial personal computer (3) is connected with the ultra-short-focus projector (2) through an HDMI (high-definition multimedia interface) line or a VGA (video graphics array) line, after receiving a picking instruction of the AGV trolley (7), the industrial personal computer (3) sends area information of projection guide to the ultra-short-focus projector (2), and after receiving the instruction of the industrial personal computer (3), the ultra-short-focus projector (2) rapidly forms area projection on the goods shelf (6) in a blazed mode to remind a picker of picking goods;

laser radar (1) is connected through net twine or other data lines with industrial computer (3), and the position of selecting the gesture of picking personnel is swept in real time to laser radar (1), and whether industrial computer (3) are correct through logical operation and big data analysis, judge the action of picking personnel to remind the staff of picking with vision and pronunciation mode.

3. The intelligent projection auxiliary picking workstation according to claim 2, wherein the ultra-short-focus projector (2) is installed at a position 0.5 m-0.8 m away from the area right in front of the support (5), the light source is vertically projected to the support (5), the laser radar (1) is installed at the position right above or at the left and right corners of the area right in front of the support (5) and is vertical to the area right in front of the support (5), whether an obstacle exists in the area right in front of the support (5) is swept through high frequency, and area coordinates of the obstacle are transmitted to the industrial personal computer (3) in real time.

4. An intelligent projection auxiliary picking workstation as claimed in claim 3, characterized in that the area right in front of the rack (5) is set into a plurality of virtual areas by the ultra-short-focus projector (2), the virtual areas are projected on the shelves (6) of the incoming AGV trolley (7) to be overlapped, and the information to be picked is projected on the digital display confirmation area of the shelves (6) in the form of numbers, characters and pictures through the ultra-short-focus projector (2);

virtual area divides and goods shelves (6) specification unanimous on inbound AGV dolly (7), and goods shelves (6) are 5 layers of 4 specifications of 20 storehouse positions altogether, and virtual area divides 5 layers of 4 specifications of 20 virtual areas altogether automatically to upload the rear end through industrial computer 3 and preserve.

5. An intelligent projection auxiliary picking workstation according to claim 4, characterized in that the industrial personal computer (3) needs to perform calculation and verification with the real-time coordinates of the AGV trolley (7) and the laser radar (1), the communication protocols performed by the industrial personal computer (3) and the laser radar (1) are standardized and unified, and the communication protocol standard system is PPS-SDK.

6. An intelligent projection auxiliary picking workstation as claimed in claim 5, wherein the assembly component (8) comprises a carriage plate (81), a lifting component (82) and a telescopic component (83), the lifting component (82) is mounted on the carriage plate (81), and the telescopic component (83) is connected with the lifting component (82).

7. The intelligent projection auxiliary picking workstation according to claim 6, wherein the lifting assembly (82) comprises a sliding rail (821), a motor (822), a screw rod (823), a sliding groove (824) and a rack (825), the sliding groove (824) is symmetrically processed along the height direction of the vehicle plate (81), and the rack (825) is fixed on the inner wall of the sliding groove (824);

motor (822) are installed on sweep (81), and in spout (824) of rack (825) opposite side were placed in lead screw (823), meshing diaphragm (826) on lead screw (823), gear (9) and rack (825) the meshing of connecting on diaphragm (826), be connected with lift platform (827) on diaphragm (826), on slide rail (821) was passed through to lift platform (827) both sides.

8. The intelligent projection auxiliary picking workstation as claimed in claim 7, wherein the telescopic assembly (83) comprises a worm (831), a worm wheel (832) and a body lifting rod (833), one end of the worm (831) penetrates through the center of the gear (9), the other end of the worm (831) penetrates into the lifting platform (827) to be meshed with the worm wheel (832), the body lifting rod (833) penetrates through the lifting platform (827), and a tooth groove (10) meshed with the worm wheel (832) is machined in the body lifting rod (833).

9. The intelligent projection auxiliary picking workstation according to claim 8, wherein a pneumatic telescopic head is connected to the top of the AGV trolley (7), the pneumatic telescopic head is telescopic on the AGV trolley (7) and used for jacking the goods shelf (6) to move or the goods shelf (6) to descend, the optical gratings are distributed on two sides of the support (5), and the optical gratings are used for sensing whether the hands of an operator are in a virtual area.

10. A picking method at an intelligent projection-assisted picking workstation as claimed in claim 9, comprising the steps of:

s1: the AGV trolley (7) moves to the front of the goods shelf (6), the motor (822) receives signals to work, and the motor (822) drives the screw rod (823) to rotate to drive the transverse plate (826) to descend;

s2: when the transverse plate (826) descends, the gear (9) rotates along the rack (825), the gear (9) transmits the rotating power to the worm (831), the worm (831) drives the worm wheel (832) to rotate, the worm wheel (832) is meshed with the internal tooth groove (10) of the body lifting rod (833), and the body lifting rod (833) extends along the inside of the lifting platform (827);

s3: the body lifting rod (833) moves to the position below the goods shelf (6), and the driving assembly component (8) drives the goods shelf (6) to ascend and move to a virtual area right in front of the bracket (5);

s4: the assembling component (8) drives the lifting rod (833) to descend and extend simultaneously, the goods shelves (6) are placed on the virtual area of the support (5), the projection area of the ultra-short-focus projector (2) is adjusted to be the same as the specifications of the goods shelves (6), and the storage space of each goods shelf (6) corresponds to the divided virtual areas one by one;

s5: ultra-short burnt projector (2) divide the virtual region of projection on goods shelves (6) into and select district and digital display affirmation district, laser radar (2) through the position of catching the gesture place of selecting personnel, carry out vision and audio alert in no formation of image projection area, select the district in the virtual region of correctness, become green formation of image projection, the suggestion is correctly selected the goods, digital display affirmation district on the information indication show strip of correct virtual region accomplishes and claps out, information indication show strip uploads data through industrial computer (3) and sends the rear end and carries out logical operation.

Technical Field

The invention relates to the field of auxiliary picking, in particular to an intelligent projection auxiliary picking workstation and a picking method thereof.

Background

When the picking staff selects at the workstation, the picking staff need to check the bar codes on the matched goods shelves and the commodity bar codes according to the electronic documents of the computer such as picking SKUs, and the goods can be picked after bar code scanning and checking is carried out through a PDA or a scanning gun, the picking operation in the mode causes low picking task efficiency, the error rate is high, the waiting time of the AGV robot entering is too long, and congestion and the order of the intelligent warehouse cannot be rapidly dispatched.

Disclosure of Invention

The invention provides an intelligent projection auxiliary picking workstation and a picking method thereof aiming at the problems in the related art, and aims to overcome the technical problems in the prior related art.

The technical scheme of the invention is realized as follows:

an intelligent projection auxiliary picking workstation comprises a laser radar, an ultra-short-focus projector, an industrial personal computer, a support and a shelf, wherein the laser radar and the ultra-short-focus projector are fixed on the top wall of the support;

the industrial personal computer is arranged on the top surface of the bracket, and the industrial personal computer, the laser radar and the ultra-short focus projector form a picking system;

the goods shelves move to the support through the assembly subassembly on the AGV dolly and select the face, select the system to goods shelves projection and warning.

Furthermore, the industrial personal computer is connected with the ultra-short-focus projector through an HDMI (high-definition multimedia interface) line or a VGA (video graphics array) line, after receiving the sorting instruction of the AGV trolley, the industrial personal computer sends the area information of the projection guide to the ultra-short-focus projector, and after receiving the instruction of the industrial personal computer, the ultra-short-focus projector quickly forms area projection on the goods shelf in a sparkling mode to remind the sorting personnel to sort goods;

laser radar and industrial computer are connected through net twine or other data lines, and laser radar sweeps in real time and selects the position of personnel's the gesture of selecting, and the industrial computer judges through logical operation and big data analysis whether to select personnel's action correct to remind the staff of selecting with vision and pronunciation mode.

Furthermore, the ultra-short-focus projector is arranged in a region 0.5-0.8 m away from the front of the support, the light source is vertically projected to the support, the laser radar is arranged right above or at the left and right corners of the region right in front of the support and is vertical to the region right in front of the support, whether an obstacle exists in the region right in front of the support or not is swept through high frequency, and region coordinates of the obstacle are transmitted to the industrial personal computer in real time.

Furthermore, the area right in front of the support is set into a plurality of virtual areas by the ultra-short-focus projector, shelves on the AGV trolley with the inbound virtual areas are overlapped, and information to be sorted is projected onto a digital display confirmation area of the shelves in the form of numbers, characters and pictures by the ultra-short-focus projector;

the virtual area division is consistent with the specification of a shelf on an inbound AGV, the shelf is in the specification of 20 positions in total in 5 layers and 4 rows, the virtual area is automatically divided into 20 virtual areas in total in 5 layers and 4 rows, and the virtual areas are uploaded to the rear end through an industrial personal computer to be stored.

Furthermore, the industrial personal computer needs to perform operation and verification with the AGV trolley and the laser radar real-time coordinates, a communication protocol performed by the industrial personal computer and the laser radar is standardized and unified, and a communication protocol standard system is PPS-SDK.

Further, the assembly component comprises a vehicle plate, a lifting component and a telescopic component, wherein the lifting component is installed on the vehicle plate, and the telescopic component is connected with the lifting component.

Furthermore, the lifting assembly comprises a sliding rail, a motor, a screw rod, a sliding chute and a rack, the sliding chute is symmetrically processed along the height direction of the vehicle plate, and the rack is fixed on the inner wall of the sliding chute;

further, the motor is installed on the sweep, and in the spout of rack opposite side was arranged in to the lead screw, the last diaphragm that meshes of lead screw, the gear and the rack meshing of connecting on the diaphragm are connected with lift platform on, and the lift platform both sides are passed through the slider and are inserted on the slide rail.

Furthermore, the telescopic assembly comprises a worm, a turbine and a lifting rod, one end of the worm penetrates through the circle center of the gear, the other end of the worm penetrates into the lifting platform to be meshed with the turbine, the lifting rod penetrates through the lifting platform, and a tooth groove meshed with the turbine is machined in the lifting rod.

Further, the top of AGV dolly 7 is connected with the pneumatic flexible head, and the pneumatic flexible head is flexible on AGV dolly 7 for jack-up goods shelves 6 remove or goods shelves 6 descend and place, and the grating distributes in the both sides of support 5, and the grating is used for responding to whether operator's hand is in virtual region.

The technical scheme has the following advantages or beneficial effects:

1. the invention provides an intelligent projection auxiliary picking workstation and a picking method thereof.A goods shelf is moved into a bracket through an assembly component on an AGV trolley, a picking system projects and reminds the goods shelf, and an energy-saving module can be triggered to standby equipment in a non-business mode; the AGV trolley enters the station or is triggered manually, the equipment can be awakened and is in seamless butt joint, and the awakening time and speed reach 0.05 second.

2. The invention provides an intelligent projection auxiliary picking workstation and a picking method thereof, wherein single power output is adopted to provide lifting and stretching power, the lifting and stretching are combined together, the body lifting rod is lifted and shortened at the same time, the body lifting rod can be effectively driven to be lifted and shortened when descending, the body lifting rod can be effectively driven to be lifted and lengthened when descending, the body lifting rod can be conveniently inserted below a goods shelf, and when the body lifting rod is lifted, the goods shelf is lifted and moved to be above an AGV trolley, so that the floor area of the goods shelf is reduced. Meanwhile, through the arrangement, the picking efficiency is also improved.

3. The invention provides an intelligent projection auxiliary picking workstation and a picking method thereof.A industrial personal computer converts a picking instruction and projects information to be picked to a specified goods shelf position in the form of numbers, characters and pictures through an ultra-short-focus projector, a worker picks the information according to light and quantity, a laser radar can judge whether to take wrong goods or not by detecting the hands of the worker, such as the wrong goods, and reminds the worker in the modes of red flashing and sound alarm; when the goods are correctly taken, the green icon and the correct icon are changed on the storage position for prompting; the picking can be completed by knocking out the confirmation area on the shelf, and the picking at this time is completed. The supplementary workstation of selecting of intelligence projection cooperation AGV dolly and goods shelves accomplish and have light, quantity, picture and text suggestion, the wrong warning suggestion of vision and pronunciation, realize quick, high-efficient, have the intelligent AGV goods of mistake proofing function and select the business to the people. Fewer AGV carts to stay at the workstation for a period of time that provides for picking efficiency throughout the logistics warehouse.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a picking perspective view of an intelligent projection assisted picking workstation according to an embodiment of the present invention;

FIG. 2 is a shelf transport state diagram for an intelligent projection assisted picking workstation according to an embodiment of the present invention;

FIG. 3 is a front view of the assembly components of the intelligent projection assisted picking workstation, according to an embodiment of the present invention;

FIG. 4 is a front partial cross-sectional block diagram of the assembly of the intelligent projection assisted picking workstation according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A of FIG. 4 of the intelligent projection assisted picking workstation in accordance with an embodiment of the present invention;

FIG. 6 is a rack elevation view of an intelligent projection-assisted picking workstation according to an embodiment of the present invention;

FIG. 7 is a system block diagram of an intelligent projection assisted picking workstation according to an embodiment of the present invention;

FIG. 8 is a perspective view of another embodiment of an intelligent projection-assisted picking workstation, according to embodiments of the present invention;

FIG. 9 is a front view of another embodiment of an intelligent projection-assisted picking workstation, according to an embodiment of the present invention;

FIG. 10 is a rear view of another embodiment of an intelligent projection-assisted picking workstation, according to embodiments of the present invention.

In the figure: 1. a laser radar; 2. an ultra-short focus projector; 3. an industrial personal computer; 5. a support; 6. a shelf; 7. an AGV trolley; 8. assembling the components; 81. turning a plate; 82. a lifting assembly; 821. a slide rail; 822. a motor; 823. a screw rod; 824. a chute; 825. a rack; 826. a transverse plate; 827. a lifting platform; 83. a telescoping assembly; 831. a worm; 832. a turbine; 833. a body lifting rod; 9. a gear; 10. a tooth socket.

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. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example one

Referring to the attached drawings 1-7, an intelligent projection auxiliary picking workstation comprises a laser radar 1, an ultra-short-focus projector 2, an industrial personal computer 3, a support 5 and a shelf 6, wherein the laser radar 1 and the ultra-short-focus projector 2 are fixed on the top wall of the support 5, and the laser radar 1 is a radar system for emitting laser beams to detect characteristic quantities such as the position, the speed and the like of a target. The working principle is that a detection signal laser beam is emitted to a target, a received signal target echo reflected from the target is compared with an emitted signal, and after data processing, relevant information of the target, such as target distance, azimuth, height, speed, attitude, even shape and other parameters, can be obtained, so that the targets of airplanes, missiles and the like are detected, tracked and identified. The laser device converts electric pulse into optical pulse to be emitted, the optical receiver restores the optical pulse reflected from the target into electric pulse to be sent to the industrial personal computer 3;

ultra-short-focus projector 2 by definition, the ultra-short-focus projector 2 is a device that uses an ultra-wide-angle lens and a throw ratio of less than 0.4. The biggest advantage is that large pictures can be projected at short distance of tens of centimeters or several centimeters, only the large pictures need to be arranged at the upper end of the bracket 5, and virtual areas, the picking number and related pictures can be projected, wherein the virtual areas are used for indicating the picking areas and the picking number. For example, the ultra-short-focus projector can adopt a NEC NP-CU4300XD reflection ultra-short-focus projector, a loose PT-SGW420C ultra-short-focus projector and the like. The industrial personal computer 3 is arranged on the top surface of the bracket 5, and the industrial personal computer 3, the laser radar 1 and the ultra-short-focus projector 2 form a picking system.

The goods shelf 6 moves into the bracket 5 through an assembly component 8 on the AGV trolley 7, the picking system projects and reminds the goods shelf 6, and the energy-saving module can be triggered to standby the equipment in a non-service mode; the AGV trolley 7 enters the station or the manual trigger mode can wake up the equipment and realize seamless butt joint, and the waking time and speed reach 0.05 second.

The industrial personal computer 3 is connected with the ultra-short-focus projector 2 through an HDMI (high-definition multimedia interface) line or a VGA (video graphics array) line, after receiving a sorting instruction of the AGV trolley 7, the industrial personal computer 3 sends the area information of the projection guide to the ultra-short-focus projector 2, and after receiving the instruction of the industrial personal computer 3, the ultra-short-focus projector 2 quickly forms area projection on the goods shelf 6 in a sparkling mode to remind a picker to sort goods;

laser radar 1 is connected through net twine or other data lines with industrial computer 3, and laser radar 1 sweeps away the position of selecting the gesture of selecting personnel in real time, and industrial computer 3 judges through logical operation and big data analysis whether to select personnel's action correctly to remind the staff of selecting with vision and pronunciation mode.

The ultra-short-focus projector 2 is arranged in a region 0.5-0.8 m above the bracket 5, a light source is vertically projected to the bracket 5, the laser radar 1 is arranged above or at the left and right corners of the region right in front of the bracket 5 and is vertical to the region right in front of the bracket 5, whether an obstacle exists in the region right in front of the bracket 5 is swept through high frequency, and the region coordinate of the obstacle is sent to the industrial personal computer 3 in real time.

The area right in front of the bracket 5 is set into a plurality of virtual areas by the ultra-short-focus projector 2, the virtual areas are projected on the goods shelf 6 on the AGV trolley 7 which enters the station and are overlapped, and the information which needs to be picked is projected on a digital display confirmation area of the goods shelf 6 in the form of numbers, characters and pictures through the ultra-short-focus projector 2;

the virtual area division is consistent with the specification of a goods shelf 6 on an inbound AGV dolly 7, the AGV dolly 7 is of a specification with 20 positions in total in 5 layers and 4 rows, the virtual area is automatically divided into 20 virtual areas in total in 5 layers and 4 rows, and the virtual areas are uploaded to the rear end through the industrial personal computer 3 to be stored.

The industrial personal computer 3 needs to perform operation and verification with the AGV trolley 7 and the laser radar 1 in real time, a communication protocol performed by the industrial personal computer 3 and the laser radar 1 is standardized and unified, and a communication protocol standard system is PPS-SDK.

The assembly component 8 comprises a vehicle plate 81, a lifting component 82 and a telescopic component 83, wherein the lifting component 82 is installed on the vehicle plate 81, and the telescopic component 83 is connected with the lifting component 82.

The lifting assembly 82 comprises a sliding rail 821, a motor 822, a screw rod 823, a sliding chute 824 and a rack 825, wherein the sliding chute 824 is symmetrically processed along the height direction of the vehicle plate 81, and the rack 825 is fixed on the inner wall of the sliding chute 824;

motor 822 is installed on sweep 81, lead screw 823 is arranged in the spout 824 of rack 825 opposite side, meshing horizontal plate 826 on the lead screw 823, the gear 9 that connects on horizontal plate 826 meshes with rack 825, be connected with lift platform 827 on the horizontal plate 826, the slider is passed through on the slider inserts slide rail 821 in lift platform 827 both sides, lift platform 827 plays along slide rail 821 and rises or descends, play the effect of direction and support, and horizontal plate 826 is at the rotatory in-process of lead screw 823, rise or descend, gear 9 can remove along rack 825, thereby produce the rotation.

The telescopic assembly 83 comprises a worm 831, a worm wheel 832 and a body lifting rod 833, one end of the worm 831 penetrates through the circle center of the gear 9, the gear 9 rotates to drive the worm 831 to rotate, the other end of the worm 831 penetrates into the lifting platform 827 to be meshed with the worm wheel 832, the body lifting rod 833 penetrates through the lifting platform 827, a tooth groove 10 meshed with the worm wheel 832 is processed on the body lifting rod 833, the body lifting rod 833 is driven to reciprocate through the rotation of the worm wheel 831, and therefore the position of the body lifting rod 833 is adjusted.

The single power output is adopted to provide lifting and stretching power, in addition, the lifting and stretching are combined together, the body lifting rod 833 is lifted and is stretched or shortened, the body lifting rod 833 can be effectively driven to stretch when the body lifting rod 833 descends, the body lifting rod 833 can be conveniently inserted below the goods shelf 6, when the body lifting rod 833 ascends, the goods shelf 6 ascends and moves to the upper part of the AGV trolley 7, and the floor area of the AGV trolley is reduced.

The industrial personal computer 3 converts the selection instruction and projects information to be selected to specified storage positions of the goods shelves 6 in the form of numbers, characters and pictures through the ultra-short-focus projector 2, workers select the information according to the light and the quantity, the laser radar 1 can judge whether the wrong goods are taken or not by detecting hands of the workers, if the wrong goods are taken, and the workers are reminded through red flashing and sound alarming; when the goods are correctly taken, the green icon and the correct icon are changed on the storage position for prompting; the picking can be finished by extinguishing the confirmation area on the shelf 6. The auxiliary workstation of selecting of intelligence projection cooperation AGV dolly 7 and goods shelves 6, the completion has light, quantity, picture and text suggestion, and vision and pronunciation false alarm suggestion realize quick, high-efficient, have the intelligent AGV goods of mistake proofing function and select the business to the people. Fewer AGV carts 7 to provide a dwell time at the workstation, providing picking efficiency throughout the logistics warehouse.

The invention provides another technology, which comprises a picking method of an intelligent projection auxiliary picking workstation, and comprises the following steps:

the method comprises the following steps: the AGV trolley 7 moves to the front of the goods shelf 6, the motor 822 receives signals to work, and the motor 822 drives the screw rod 823 to rotate to drive the transverse plate 826 to descend;

step two: when the transverse plate 826 descends, the gear 9 rotates along the rack 825, the gear 9 transmits the rotating power to the worm 831, the worm 831 drives the worm wheel 832 to rotate, the worm wheel 832 is meshed with the tooth groove 10 in the body lifting rod 833, and the body lifting rod 833 extends along the lifting platform 827;

step three: the body lifting rod 833 moves to the position below the goods shelf 6, and the driving assembly 8 drives the goods shelf 6 to ascend and move to a virtual area right in front of the bracket 5;

step four: the assembling component 8 drives the lifting rod 833 to descend and extend at the same time, the goods shelf 6 is placed on the virtual area of the support 5, the projection area of the ultra-short-focus projector 2 is adjusted to be the same as the specification of the goods shelf 6, and the storage space of each goods shelf 6 corresponds to the divided virtual areas one by one;

step five: the virtual area of projection on the goods shelves 6 is divided into a picking area and a digital display confirmation area by the ultra-short-focus projector 2, the laser radar 1 carries out visual and voice alarm in the non-imaging projection area by capturing the position of the gesture of a picking person, the picking area in the correct virtual area is changed into green imaging projection, goods are correctly picked by prompting, and the information indication display strip transmits data to the rear end through the industrial personal computer 3.

Example two:

referring to fig. 8-10, the top of the AGV cart 7 is connected with a pneumatic telescopic head, the pneumatic telescopic head is telescopic on the AGV cart 7 and used for jacking the goods shelf 6 to move or the goods shelf 6 to descend, the optical gratings are distributed on two sides of the support 5 and used for sensing whether the hands of an operator are in a virtual area.

Through the AGV dolly 7 removal that adopts the platykurtic to moving to the below of goods shelves 6 at AGV dolly 7, pneumatic flexible head rises and jacks up goods shelves 6, leaves ground, and AGV dolly 7 drives goods shelves 6 and moves to the virtual region of support 5 in, and the projection is aimed at the face of selecting of goods shelves 6, accomplishes the projection.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.