CN109332206B - High-speed multi-face code scanning and weighing detection system and detection method - Google Patents
High-speed multi-face code scanning and weighing detection system and detection method Download PDFInfo
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- CN109332206B CN109332206B CN201811209692.5A CN201811209692A CN109332206B CN 109332206 B CN109332206 B CN 109332206B CN 201811209692 A CN201811209692 A CN 201811209692A CN 109332206 B CN109332206 B CN 109332206B
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- 238000005303 weighing Methods 0.000 title claims abstract description 123
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 230000003068 static effect Effects 0.000 claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 230000001502 supplementing effect Effects 0.000 claims description 99
- 230000001960 triggered effect Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3412—Sorting according to other particular properties according to a code applied to the object which indicates a property of the object, e.g. quality class, contents or incorrect indication
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/08—Sorting according to size measured electrically or electronically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/16—Sorting according to weight
- B07C5/18—Sorting according to weight using a single stationary weighing mechanism
Abstract
The invention discloses a high-speed multi-face code scanning and weighing detection system and a detection method, wherein the system comprises a express mail background server and an express mail foreground server which are used for recording express mail information; the conveying mechanism is used for conveying the telescopic section of the express mail from the truck, the weighing and code scanning section for detecting the weight of the express mail and the sorting section for sorting the express mail; the detection mechanism is used for identifying a static code scanning camera of the express mail face single bar code, identifying a dynamic code scanning camera of the express mail face single bar code, a 3D volume camera used for measuring the volume of the express mail and a weighing platform used for weighing the weight of the express mail; the multi-surface code scanning rack is used for bearing the detection equipment; the sorting device comprises a sorting machine and a matrix belt, and is used for sorting the express items; and a control device for controlling the above-mentioned equipment. The invention enhances the brightness of the scanning illumination of the express mail, reduces the missing scanning rate of the express mail, has wide illumination coverage, multi-surface identification, solves the problem of nonstandard single posting of the express mail surface, and has stable frame structure, flexible adjustment and high automation level.
Description
Technical Field
The invention relates to the technical field of logistics sorting equipment, in particular to a system for intelligent code scanning, weighing, volume measurement and automatic sorting of logistics express mail and a detection method applied to the system.
Background
At present, e-commerce sales becomes a mainstream mode of mass shopping, for e-commerce sales, after customers order, warehouse delivery is performed, goods are transported to each distribution center through a logistics company, the distribution centers scan, weigh and sort, and finally, goods are loaded and transported to all sites below cities and delivered through personnel, so that the e-commerce sales is a ring with a good customer experience being not negligible. It is important for a warehouse of a logistics distribution center to store a large amount of goods whether the goods can be accurately, quickly and effectively sorted.
In the prior art, chinese patent publication No. CN107597607a discloses a logistic automatic sorting system and sorting method, which comprises an order system server, a printer for printing package label information, a pipeline comprising an acceleration section, a weighing section and a sorting section, a laser code reader for reading package label information, a weighing table for weighing weight information of packages, a sorter for sorting and conveying different packages to corresponding sorting boxes, and a control device for coordinating the above components.
The above patent has the following technical defects:
1. the automatic degree of goods sorting is low, and the goods in the sorting boxes need to be manually loaded and transported;
2. The lack of a corresponding detection device for the cargo volume measurement;
3. only can detect the label information on the goods top surface through the laser code reader at top, in case label information on other dimension faces, the laser code reader will not detect, will appear leaking and sweep with the condition of sweeping by mistake, the manual work is up-set goods label information, can greatly increased intensity of labour.
Most of the existing logistics companies carry out bar code scanning, weight detection and cargo sorting on cargoes through nonstandard automatic detection equipment and deliver the cargoes to customers through logistics. Although various order systems, independent product warehouses, sorting machines, laser code readers and electronic scales are already available in the market, the sorting machines are all independently operated and need to be triggered manually, the spreading of bar code scanning work needs to have good conditions that bar codes face upwards, and for goods with bar codes not facing upwards, the bar codes of the goods need to be manually aligned upwards, so that the labor intensity is greatly increased, and the conditions of missing scanning and wrong scanning are easily caused. Besides, the existing nonstandard automatic detection equipment does not realize the integration of functions such as code scanning, weighing, volume measurement and sorting, each functional module independently operates, once errors occur in intermediate links, the errors are difficult to trace, the automation degree is greatly reduced, and the working efficiency is low.
Disclosure of Invention
According to the detection system and the detection method, after the detection system and the detection method are used, the brightness of the scanning illumination of the express mail is enhanced, the multi-dimensional illumination of the light supplementing lamps is realized, the recognition rate of the scanning of the express mail is improved, the missing scanning rate of the express mail is reduced, the labor intensity is greatly reduced, the complete coverage of the express mail in the longitudinal and transverse dimensions is realized, the missing scanning rate is further reduced, the specific angle of the light supplementing lamps is set, the illumination three-dimensional coverage is wider, the frame structure is stable, the up-and-down adjustment of the frame is flexible, the use is convenient, the sorting of the express mail by a sorting machine is realized, the function is diversified, the function integration level is high, and the automation level is high.
In order to solve the technical problems, the invention adopts the following technical scheme:
the high-speed multi-face code scanning and weighing detection system comprises a express mail background server and an express mail foreground server, wherein the express mail background server is in signal connection with the express mail foreground server, the express mail background server is used for inputting and storing bar codes, weight and mailing information of each express mail, and the express mail foreground server is used for inputting and storing the bar codes, weight and volume of each express mail; the express mail foreground server performs information matching on the stored bar codes and the bar codes stored by the express mail background server, and once the bar code information is successfully matched, the express mail background server is triggered to send a grid number to the express mail foreground server;
The automatic sorting device comprises a conveying mechanism, wherein the conveying mechanism comprises a telescopic section for conveying the express mail from a truck, a weighing code scanning section for detecting the weight of the express mail and a sorting section for sorting the express mail, the telescopic section is positioned at the upstream of the weighing code scanning section, the weighing code scanning section is positioned at the upstream of the sorting section, the conveying mechanism is used for bearing the express mail to be detected, conveying the express mail to be detected from the telescopic section to the weighing code scanning section for detecting the weight and the volume of the express mail, and conveying the detected express mail to the sorting section for sorting according to the number of the lattice codes;
the automatic weighing and code scanning device comprises a detection mechanism, and further comprises a multi-face code scanning frame, a static code scanning camera, a dynamic code scanning camera, a 3D volume camera and a weighing platform, wherein the static code scanning camera comprises a first code scanning camera group, a second code scanning camera group, a third code scanning camera group and a fourth code scanning camera group, the multi-face code scanning frame spans over a weighing code scanning section, the static code scanning camera, the dynamic code scanning camera and the 3D volume camera are all arranged on the multi-face code scanning frame, the static code scanning camera is used for identifying single bar code information of a express mail, the dynamic code scanning camera is used for identifying single number information of the express mail, the 3D volume camera is used for measuring volume information of the express mail, and the weighing platform is located in the weighing code scanning section and is used for weighing weight information of the express mail;
The top of the multi-face code scanning frame is provided with a first lamp group, a dynamic code scanning camera and a 3D volume camera, the first lamp group, the dynamic code scanning camera and the 3D volume camera are all vertically downwards oriented to the weighing code scanning section, the outer circumference of the multi-face code scanning frame is respectively provided with a first light supplementing platform, a second light supplementing platform, a third light supplementing platform and a fourth light supplementing platform which are parallel to the weighing code scanning section, the first light supplementing platform is provided with a second lamp group and a first code scanning camera group, the second light supplementing platform is provided with a third lamp group and a second code scanning camera group, the third light supplementing platform is provided with a fourth lamp group and a third code scanning camera group, the fourth light supplementing platform is provided with a fifth lamp group and a fourth code scanning camera group, and the second lamp group, the fourth lamp group, the fifth lamp group, the first code scanning camera group, the second code scanning camera group, the third code scanning camera group and the fourth code scanning camera group are all inclined towards the weighing section;
the multi-face code scanning frame further comprises four upright posts which are vertically arranged upwards, the four upright posts are of a telescopic structure, the upper parts of the four upright posts are connected with the top of the multi-face code scanning frame, the middle parts of the four upright posts are respectively connected with the first light supplementing platform, the second light supplementing platform, the third light supplementing platform and the fourth light supplementing platform, and the tops of the first light supplementing platform, the second light supplementing platform, the third light supplementing platform, the fourth light supplementing platform and the frame are vertically adjusted through the telescopic structure of the four upright posts; the top of the multi-surface code scanning rack is a rectangular rack, four sides of the rectangular rack are connected with the tops of the four upright posts, the rectangular rack is horizontally placed, and the first lamp group and the dynamic code scanning camera are arranged in the center of the rectangular rack;
The sorting device comprises a sorting machine and a matrix belt, wherein the sorting machine sorts the express items in different administrative areas and pushes the express items to the matrix belt corresponding to the grid number through a pushing arm of the sorting machine for express item conveying;
comprises a control device for controlling the work of a conveying mechanism, a static code scanning camera, a dynamic code scanning camera, a 3D volume camera, a weighing platform, a sorting machine and a lamp group, and the system is used for recording the single number information, the bar code information, the weight information and the volume information of the express mail and feeding back the single number information, the bar code information, the weight information and the volume information to the express mail background server and the express mail foreground server.
The invention aims to solve the technical problems, and adopts the following further technical scheme:
further, two parallel cross beams are arranged in the rectangular frame at the top of the multi-face code scanning frame, two ends of the two cross beams are fixedly connected with two sides of the rectangular frame, and the first lamp set, the dynamic code scanning camera and the 3D volume camera are respectively arranged on the lower surfaces of the central positions of the two cross beams.
Further, the light supplementing platform on the feeding side of the defined conveying mechanism is the first light supplementing platform, the light supplementing platform on the discharging side of the conveying mechanism is the second light supplementing platform, the light supplementing platforms on the left side and the right side of the operating platform are the third light supplementing platform and the fourth light supplementing platform respectively, the first light supplementing platform and the second light supplementing platform are opposite in position and are located at the same horizontal height, the third light supplementing platform and the fourth light supplementing platform are opposite in position and are located at the same horizontal height, the horizontal heights of the first light supplementing platform and the second light supplementing platform are larger than the horizontal heights of the third light supplementing platform and the fourth light supplementing platform, the horizontal heights of the first light supplementing platform and the second light supplementing platform are 2.4m, and the horizontal heights of the third light supplementing platform and the fourth light supplementing platform are 2.1m.
Further, the side where the first light supplementing platform is located is defined to be front, the side where the second light supplementing platform is located is rear, the second lamp set is opposite to the third lamp set in position, the first code scanning camera set is opposite to the second code scanning camera set in position, the second lamp set is inclined at 20 degrees from front to back and upward, the first code scanning camera set is inclined at 20 degrees from front to back and downward, the third lamp set is inclined at 20 degrees from back to front and upward, and the second code scanning camera set is inclined at 20 degrees from back to front and downward.
Further, the fourth light set is opposite to the fifth light set in position, the third code scanning camera set is opposite to the fourth code scanning camera set in position, the fourth light set is inclined at 30 degrees from left to right and upward, the third code scanning camera set is inclined at 30 degrees from left to right and downward, the fifth light set is inclined at 30 degrees from right to left and upward, and the fourth code scanning camera is inclined at 30 degrees from right to left and downward.
Further, the first code scanning camera set and the second code scanning camera set are both provided with two static code scanning cameras, the two static code scanning cameras of the first code scanning camera set and the two static code scanning cameras of the second code scanning camera set are all arranged in a horizontal and linear mode, the linear distance between the two static code scanning cameras of the first code scanning camera set is 0.46m, the linear distance between the two static code scanning cameras of the second code scanning camera set is 0.46m, the vertical distance between the two static code scanning cameras of the first code scanning camera set and the weighing code scanning section is 0.9m, and the vertical distance between the two static code scanning cameras of the second code scanning camera set and the weighing code scanning section is 0.9m.
Further, the third code scanning camera set and the fourth code scanning camera set are both provided with two static code scanning cameras, the two static code scanning cameras of the third code scanning camera set and the two static code scanning cameras of the fourth code scanning camera set are all longitudinally and linearly arranged, the linear distance between the two static code scanning cameras of the third code scanning camera set is 0.32m, the linear distance between the two static code scanning cameras of the fourth code scanning camera set is 0.32m, and the vertical distance between the static code scanning cameras which are longitudinally and linearly arranged and are close to the weighing code scanning section side and the weighing code scanning section is 0.38m.
Further, three dynamic code scanning cameras are arranged at the top of the multi-face code scanning frame, the three dynamic code scanning cameras are arranged in a transverse and linear mode, the linear distance between two adjacent dynamic code scanning cameras is 0.3m, and the vertical distance between the three dynamic code scanning cameras and the weighing code scanning section is 1.84m.
Further, the control device comprises a center console and a center control processor, the center control processor is arranged in the center console, a display screen and a control panel are arranged on the table top of the center console, the center control processor is respectively electrically connected with the control panel, the display screen and a express mail foreground server, and the control panel controls the power on-off of the conveying mechanism, the static code scanning camera, the dynamic code scanning camera, the 3D volume camera, the weighing table, the sorting machine and the lamp group.
The invention also provides a high-speed multi-face code scanning and weighing detection method, which comprises the following steps:
s1, loading and scanning a express mail, wherein before loading the express mail, a scanner is used for scanning a bar code attached to the express mail to obtain express mail bar code information, the express mail bar code information is sent to an express mail background server, and the express mail bar code information is waited for matching;
s2, unloading and conveying the express mail, wherein when the express mail is unloaded, the express mail with the bar code attached and the bar code not facing downwards is placed on the telescopic section, and the conveying mechanism continuously conveys the express mail;
s3, detecting information of the express mail, conveying the express mail to a weighing code scanning section by a conveying mechanism, triggering a static code scanning camera on a multi-face code scanning rack to simultaneously scan and read bar codes on the front, back, left and right 4 faces of the express mail, triggering a top dynamic code scanning camera of the multi-face code scanning rack to photograph and read single-number information of the face of the express mail, measuring the volume of the express mail by a 3D volume camera at the top, continuously detecting the weight of the express mail by a weighing platform between the weighing code scanning section and a sorting section, calculating the weight of the express mail by a weight calculation formula of the express mail, and recording the bar code information and the weight information by a control device and transmitting the bar code information and the weight information to a front server of the express mail for storage;
The weight of the express item is calculated using the following formula a,
wherein:
the average weight of the M-express mail for n times is measured in kg;
M n -the weight of the nth test of the express item in kg;
n-number of weight checks of the part;
s4, sorting the express mail, wherein the stored bar codes are matched with the bar codes stored by the express mail background server by the express mail foreground server, once the bar code information is successfully matched, the express mail background server is triggered to send the port number to the express mail foreground server, the express mail foreground server sends the port number information to the control device, the sorting machine acquires the express mail port number information from the control device, the sorting machine is triggered to perform express mail sorting action in a specified time, and the express mail belonging to different port numbers is driven into different matrix bands through swing arms of the sorting machine;
the trigger moment of the sorter is calculated using the following formula b,
T＝T 1 +t P equation b
Wherein:
the T-sorting machine triggers the sorting action for the express items;
T 1 -moment when the express mail enters the weighing code scanning section and the express mail bar code is detected for the first time;
t P -the process time in s of the fact that the first bar code detects the fact that the P-th sorting machine triggers a sorting action on the express mail;
in the above formula b, t P Can be obtained by combining the following formulas c, d and e,
t P ＝t 1 +t 2 Formula c
Wherein:
t 1 -the time required for the first detection of the barcode of the express mail until the express mail leaves the weighing and scanning section is given in s;
X 1 -the first detection of the distance between the bar code and the end of the weighing sweep segment by the express mail, in m;
V 1 -the speed of transport of the express mail on the weighing and scanning section, in m/s;
t 2 -the time required for the express mail to be delivered to the P-th sorting machine corresponding to the number of grid, in s;
X P -the distance between the piece from the beginning of the sorting section to the position of the P-th sorting machine, in m;
V 2 the speed of transport of the express mail over the sorting section is in m/s.
The beneficial effects of the invention are as follows:
1. the multi-face code scanning frame is erected right above a weighing code scanning section, the top of the multi-face code scanning frame is provided with a first lamp group, a dynamic code scanning camera and a 3D volume camera, the first lamp group, the dynamic code scanning camera and the 3D volume camera face downwards vertically to the weighing code scanning section, the outer circumference of the multi-face code scanning frame is respectively provided with a first light supplementing platform, a second light supplementing platform, a third light supplementing platform and a fourth light supplementing platform which are parallel to the weighing code scanning section, the first light supplementing platform is provided with a second lamp group and a first code scanning camera set, the second light supplementing platform is provided with a third lamp group and a second code scanning camera set, the third light supplementing platform is provided with a fourth lamp group and a third code scanning camera set, the fourth light supplementing platform is provided with a fifth lamp group and a fourth code scanning camera set, the second light supplementing set, the third code scanning camera set and the fourth code scanning camera set face upwards to a plurality of inclined pieces, the quick-scanning recognition pieces can be automatically scanned in a direction, the quick-to-reading system can be automatically scanned in a direction from the left to the right, the quick-hand side can be quickly scanned to the quick-side, the quick-scan can be quickly-up-down the quick-to-scan can be prevented, and the quick-to-scan pieces can be quickly read and the quick-scan and the recognition pieces can be prevented from the quick-reach the front, and the quick-to the quick-scan can be easily-to the left-scan and the recognition device can be easily reach the recognition device;
2. The second lamp group and the third lamp group of the invention are opposite, the first code scanning camera group and the second code scanning camera group are opposite, the second lamp group is inclined at 20 degrees from front to back and upward, the first code scanning camera group is inclined at 20 degrees from front to back and downward, the third lamp group is inclined at 20 degrees from back to front and upward, the second code scanning camera group is inclined at 20 degrees from back to front and downward, the fourth lamp group is opposite to the fifth lamp group, the third code scanning camera group is opposite to the fourth code scanning camera group, the fourth lamp group is inclined at 30 degrees from left to right and upward, the third code scanning camera group is inclined at 30 degrees from left to right and the fifth lamp group is inclined at 30 degrees from right to left and upward, the fourth code scanning camera is inclined from right to left and the downward angle is 30 degrees, the first code scanning camera group and the second code scanning camera group are both provided with two static code scanning cameras, the two static code scanning cameras of the first code scanning camera group and the two static code scanning cameras of the second code scanning camera group are all arranged in a horizontal straight line, the third code scanning camera group and the fourth code scanning camera group are both provided with two static code scanning cameras, the two static code scanning cameras of the third code scanning camera group and the two static code scanning cameras of the fourth code scanning camera group are all arranged in a longitudinal straight line, the express scanning achieves complete coverage in the longitudinal dimension and the horizontal dimension, the missing scanning rate is further reduced, and the specific angle of the light supplementing lamp is arranged to enable the illumination three-dimensional coverage to be wider;
3. The multi-face code scanning frame comprises four upright posts which are vertically arranged upwards, the four upright posts are of a telescopic structure, the upper parts of the four upright posts are connected with the top of the multi-face code scanning frame, the middle parts of the four upright posts are respectively connected with a first light supplementing platform, a second light supplementing platform, a third light supplementing platform and a fourth light supplementing platform, the first light supplementing platform, the second light supplementing platform, the third light supplementing platform, the fourth light supplementing platform and the top of the frame are vertically adjusted through the telescopic structure of the four upright posts, the top of the multi-face code scanning frame is a rectangular frame, the four sides of the rectangular frame are connected with the top of the four upright posts, the rectangular frame is horizontally arranged, the first lamp group and the dynamic code scanning camera are arranged in the center of the rectangular frame, the frame is stable in structure, the up-down adjustment of the frame is flexible, and the use is convenient;
4. the control device comprises a central control console and a central control processor, wherein the central control processor is arranged in the central control console, a display screen and a control panel are arranged on the table top of the central control console, the central control processor is respectively and electrically connected with the control panel and the display screen, the control panel controls the power on-off of a conveying mechanism, a static code scanning camera, a dynamic code scanning camera, a 3D volume camera, a weighing table, a sorting machine and a lamp group, and is used for controlling the work of the conveying mechanism, the static code scanning camera, the dynamic code scanning camera, the 3D volume camera, the weighing table, the sorting machine and the lamp group, and the control device is also used for recording single number information, bar code information, weight information and volume information of a express mail and feeding the single number information, the bar code information and the weight information back to a express mail background server and the express mail foreground server, so that the sorting machine can sort the express mail, the functions are diversified, the function integration level is high, and the automation level is high.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a high-speed multi-face code scanning and weighing detection system according to the present invention;
FIG. 2 is a front view of a high-speed multi-faceted code scanning and weighing detection system of the present invention;
FIG. 3 is a top view of a high-speed multi-faceted code scanning and weighing detection system of the present invention;
FIG. 4 is a right side view of a high speed multi-faceted code scanning, weight detection system of the present invention;
FIG. 5 is a control schematic diagram of a high-speed multi-face code scanning and weighing detection system according to the invention;
FIG. 6 is a high-speed multi-face code scanning and weighing detection method according to the invention;
the parts in the drawings are marked as follows:
the system comprises a express mail background server 1, a express mail foreground server 2, a express mail 3, a telescopic section 4, a weighing code scanning section 5, a multi-face code scanning rack 51, a static code scanning camera 511, a first code scanning camera group 5111, a second code scanning camera group 5112, a third code scanning camera group 5113, a fourth code scanning camera group 5114, a dynamic code scanning camera 512, a 3D volume camera 513, a weighing platform 514, a first lamp group 515, a stand 516, a rectangular frame 517, a cross beam 518, a first light supplementing platform 52, a second lamp group 521, a second light supplementing platform 53, a third lamp group 531, a third light supplementing platform 54, a fourth lamp group 541, a fourth light supplementing platform 55, a fifth lamp group 551, a sorting section 6, a sorting machine 61, a matrix belt 62, a central control platform 7, a display screen 71, a control panel 72, a central control processor 8, a horizontal height H1 of the first light supplementing platform and the second light supplementing platform the third light filling platform, the fourth light filling platform, the horizontal height H2 of the second light filling platform, the linear distance H3 between two adjacent dynamic code scanning cameras, the vertical distance H4 between the dynamic code scanning cameras and the weighing code scanning section, the linear distance H5 between two static code scanning cameras of the first code scanning camera group, the linear distance H6 between two static code scanning cameras of the second code scanning camera group, the vertical distance H7 between the two static code scanning cameras of the first code scanning camera group and the weighing code scanning section, the vertical distance H8 between the two static code scanning cameras of the second code scanning camera group and the weighing code scanning section, the linear distance H9 between the two static code scanning cameras of the third code scanning camera group, the linear distance H10 between the two static code scanning cameras of the fourth code scanning camera group, the linear distance H, the vertical distance H11 between the static code scanning camera which is longitudinally and linearly arranged and is close to the weighing code scanning section side and the weighing code scanning section, the second lamp set is inclined by an angle alpha which is from front to back and upward, the first code scanning camera set is inclined by an angle alpha 1 which is from front to back and downward, the third lamp set is inclined by an angle beta which is from back to front and upward, the second code scanning camera set is inclined by an angle beta 1 which is from back to front and downward, the fourth lamp set is inclined by an angle gamma which is from left to right and upward, the third code scanning camera set is inclined by an angle gamma 1 which is from left to right and upward, the fifth lamp set is inclined by an angle theta which is from right to left and the fourth code scanning camera is inclined by an angle theta 1 which is from right to left and downward.
Detailed Description
The following specific embodiments of the invention are described in order to provide those skilled in the art with an understanding of the present disclosure. The invention may be embodied in other different forms, i.e., modified and changed without departing from the scope of the invention.
Example 1
1-5, the high-speed multi-face code scanning and weighing detection system comprises a express mail background server 1 and an express mail foreground server 2, wherein the express mail background server is in signal connection with the express mail foreground server, the express mail background server is used for inputting and storing bar codes, weights and mailing information of each express mail 3, and the express mail foreground server is used for inputting and storing the bar codes, the weights and the volumes of each express mail; the express mail foreground server performs information matching on the stored bar codes and the bar codes stored by the express mail background server, and once the bar code information is successfully matched, the express mail background server is triggered to send a grid number to the express mail foreground server;
the automatic sorting device comprises a conveying mechanism, wherein the conveying mechanism comprises a telescopic section 4 for conveying the express mail from a truck, a weighing code scanning section 5 for detecting the weight of the express mail and a sorting section 6 for sorting the express mail, the telescopic section is positioned at the upstream of the weighing code scanning section, the weighing code scanning section is positioned at the upstream of the sorting section, the conveying mechanism is used for bearing the express mail to be detected, conveying the express mail to be detected from the telescopic section to the weighing code scanning section for detecting the weight and the volume of the express mail, and conveying the detected express mail to the sorting section for sorting according to a grid number;
The detection mechanism comprises a detection mechanism, and further comprises a multi-face code scanning frame 51, a static code scanning camera 511, a dynamic code scanning camera 512, a 3D volume camera 513 and a weighing table 514, wherein the static code scanning camera comprises a first code scanning camera group 5111, a second code scanning camera group 5112, a third code scanning camera group 5113 and a fourth code scanning camera group 5114, the multi-face code scanning frame spans over the weighing code scanning section, the static code scanning camera, the dynamic code scanning camera and the 3D volume camera are arranged on the multi-face code scanning frame, the static code scanning camera is used for identifying single-bar code information of a express mail surface, the dynamic code scanning camera is used for identifying single-number information of the express mail surface, the 3D volume camera is used for measuring volume information of the express mail, and the weighing table is positioned on the weighing code scanning section and used for weighing weight information of the express mail;
the top of the multi-face code scanning frame is provided with a first lamp group 515, a dynamic code scanning camera and a 3D volume camera, the first lamp group, the dynamic code scanning camera and the 3D volume camera are all vertically downwards oriented to the weighing code scanning section, the outer circumference of the multi-face code scanning frame is respectively provided with a first light supplementing platform 52, a second light supplementing platform 53, a third light supplementing platform 54 and a fourth light supplementing platform 55 which are parallel to the weighing code scanning section, the first light supplementing platform is provided with a second lamp group 521 and a first code scanning camera group, the second light supplementing platform is provided with a third lamp group 531 and a second code scanning camera group, the third light supplementing platform is provided with a fourth lamp group 541 and a third code scanning camera group, the fourth light supplementing platform is provided with a fifth lamp group 551 and a fourth code scanning camera group, and the second lamp group, the third lamp group, the fourth lamp group, the fifth lamp group, the first code scanning camera group, the second code scanning camera group, the third code scanning camera group and the fourth code scanning camera group are all obliquely oriented to the weighing section;
The multi-face code scanning frame further comprises four upright posts 516 which are vertically arranged upwards, the four upright posts are of telescopic structures, the upper parts of the four upright posts are connected with the top of the multi-face code scanning frame, the middle parts of the four upright posts are respectively connected with the first light supplementing platform, the second light supplementing platform, the third light supplementing platform and the fourth light supplementing platform, and the tops of the first light supplementing platform, the second light supplementing platform, the third light supplementing platform, the fourth light supplementing platform and the frame are vertically adjusted through the telescopic structures of the four upright posts; the top of the multi-surface code scanning rack is a rectangular frame 517, four sides of the rectangular frame are connected with the tops of the four upright posts, the rectangular frame is horizontally placed, and the first lamp group and the dynamic code scanning camera are arranged in the center of the rectangular frame;
the sorting device comprises a sorting machine 61 and a matrix belt 62, wherein the sorting machine sorts the express items in different administrative areas and pushes the express items to the matrix belt corresponding to the grid number through a pushing arm of the sorting machine for conveying the express items;
comprises a control device for controlling the work of a conveying mechanism, a static code scanning camera, a dynamic code scanning camera, a 3D volume camera, a weighing platform, a sorting machine and a lamp group, and the system is used for recording the single number information, the bar code information, the weight information and the volume information of the express mail and feeding back the single number information, the bar code information, the weight information and the volume information to the express mail background server and the express mail foreground server.
Two parallel cross beams 518 are arranged in the rectangular frame at the top of the multi-face code scanning frame, two ends of the two cross beams are fixedly connected with two sides of the rectangular frame, and the first lamp set, the dynamic code scanning camera and the 3D volume camera are respectively arranged on the lower surfaces of the central positions of the two cross beams.
Define the light filling platform of feed side of conveying mechanism be first light filling platform, the light filling platform of discharge side of conveying mechanism is the second light filling platform, the light filling platform on the left and right sides of operation platform is third light filling platform, fourth light filling platform respectively, first light filling platform with second light filling platform position is relative and be in same level, third light filling platform with fourth light filling platform position is relative and be in same level, first light filling platform, second light filling platform's level H1 is all greater than third light filling platform, fourth light filling platform's level H2, first light filling platform, second light filling platform's level H1 is 2.4m, third light filling platform, fourth light filling platform's level H2 is 2.1m.
The side where the first light supplementing platform is located is the front, the side where the second light supplementing platform is located is the back, the second lamp set is opposite to the third lamp set in position, the first code scanning camera set is opposite to the second code scanning camera set in position, the second lamp set is 20 degrees by the back and upward inclination angle alpha, the first code scanning camera set is 20 degrees by the back and forward and downward inclination angle alpha 1, the third lamp set is 20 degrees by the back and forward and upward inclination angle beta, and the second code scanning camera set is 20 degrees by the back and forward and downward inclination angle beta 1.
The fourth lamp group is opposite to the fifth lamp group in position, the third code scanning camera group is opposite to the fourth code scanning camera group in position, the fourth lamp group is 30 degrees from left to right and upward inclination gamma, the third code scanning camera group is 30 degrees from left to right and downward inclination gamma 1, the fifth lamp group is 30 degrees from right to left and upward inclination theta, and the fourth code scanning camera is 30 degrees from right to left and downward inclination theta 1.
The first code scanning camera set and the second code scanning camera set are both provided with two static code scanning cameras, the two static code scanning cameras of the first code scanning camera set and the two static code scanning cameras of the second code scanning camera set are all arranged in a transverse straight line, the straight line distance H5 between the two static code scanning cameras of the first code scanning camera set is 0.46m, the straight line distance H6 between the two static code scanning cameras of the second code scanning camera set is 0.46m, the vertical distance H7 between the two static code scanning cameras of the first code scanning camera set and the weighing code scanning section is 0.9m, and the vertical distance H8 between the two static code scanning cameras of the second code scanning camera set and the weighing code scanning section is 0.9m.
The third code scanning camera set and the fourth code scanning camera set are respectively provided with two static code scanning cameras, the two static code scanning cameras of the third code scanning camera set and the two static code scanning cameras of the fourth code scanning camera set are all longitudinally and linearly arranged, the linear distance H9 between the two static code scanning cameras of the third code scanning camera set is 0.32m, the linear distance H10 between the two static code scanning cameras of the fourth code scanning camera set is 0.32m, and the vertical distance H11 between the static code scanning cameras which are longitudinally and linearly arranged and are close to the weighing code scanning section side and the weighing code scanning section is 0.38m.
The dynamic code scanning cameras at the top of the multi-face code scanning frame are arranged in three, the three dynamic code scanning cameras are arranged in a transverse straight line mode, the straight line distance H3 between two adjacent dynamic code scanning cameras is 0.3m, and the vertical distance H4 between the three dynamic code scanning cameras and the weighing code scanning section is 1.84m.
The control device comprises a center control console 7 and a center control processor 8, wherein the center control processor is arranged in the center control console, a display screen 71 and a control panel 72 are arranged on the table top of the center control console, the center control processor is respectively electrically connected with the control panel, the display screen and a express mail foreground server, and the control panel controls the power on-off of the conveying mechanism, the static code scanning camera, the dynamic code scanning camera, the 3D volume camera, the weighing table, the sorting machine and the lamp group.
Example 2
The invention also provides a high-speed multi-face code scanning and weighing detection method, as shown in fig. 6, comprising the following steps:
s1, loading and scanning a express mail, wherein before loading the express mail, a scanner is used for scanning a bar code attached to the express mail to obtain express mail bar code information, the express mail bar code information is sent to an express mail background server, and the express mail bar code information is waited for matching;
S2, unloading and conveying the express mail, wherein when the express mail is unloaded, the express mail with the bar code attached and the bar code not facing downwards is placed on the telescopic section, and the conveying mechanism continuously conveys the express mail;
s3, detecting information of the express mail, conveying the express mail to a weighing code scanning section by a conveying mechanism, triggering a static code scanning camera on a multi-face code scanning rack to simultaneously scan and read bar codes on the front, back, left and right 4 faces of the express mail, triggering a top dynamic code scanning camera of the multi-face code scanning rack to photograph and read single-number information of the face of the express mail, measuring the volume of the express mail by a 3D volume camera at the top, continuously detecting the weight of the express mail by a weighing platform between the weighing code scanning section and a sorting section, calculating the weight of the express mail by a weight calculation formula of the express mail, and recording the bar code information and the weight information by a control device and transmitting the bar code information and the weight information to a front server of the express mail for storage;
the weight of the express item is calculated using the following formula a,
wherein:
the average weight of the M-express mail for n times is measured in kg;
M n -the weight of the nth test of the express item in kg;
n-number of weight checks of the part;
s4, sorting the express mail, wherein the stored bar codes are matched with the bar codes stored by the express mail background server by the express mail foreground server, once the bar code information is successfully matched, the express mail background server is triggered to send the port number to the express mail foreground server, the express mail foreground server sends the port number information to the control device, the sorting machine acquires the express mail port number information from the control device, the sorting machine is triggered to perform express mail sorting action in a specified time, and the express mail belonging to different port numbers is driven into different matrix bands through swing arms of the sorting machine;
The trigger moment of the sorter is calculated using the following formula b,
T＝T 1 +t P equation b
Wherein:
the T-sorting machine triggers the sorting action for the express items;
T 1 -moment when the express mail enters the weighing code scanning section and the express mail bar code is detected for the first time;
t P -the process time in s of the fact that the first bar code detects the fact that the P-th sorting machine triggers a sorting action on the express mail;
in the above formula b, t P Can be obtained by combining the following formulas c, d and e,
t P ＝t 1 +t 2 formula c
Wherein:
t 1 -the time required for the first detection of the barcode of the express mail until the express mail leaves the weighing and scanning section is given in s;
X 1 -the first detection of the distance between the bar code and the end of the weighing sweep segment by the express mail, in m;
V 1 -the speed of transport of the express mail on the weighing and scanning section, in m/s;
t 2 -the time required for the express mail to be delivered to the P-th sorting machine corresponding to the number of grid, in s;
X P -the distance between the piece from the beginning of the sorting section to the position of the P-th sorting machine, in m;
V 2 the speed of transport of the express mail over the sorting section is in m/s.
The working process and working principle of the invention are as follows:
the method comprises the steps of (1) loading and scanning a express, wherein before loading the express, a scanner is used for scanning a bar code attached to the express to obtain express bar code information, the express bar code information is sent to an express background server, and the express bar code information is waited for matching;
When the express mail is unloaded, the express mail with the bar code attached is placed on the telescopic section, and the conveying mechanism continuously conveys the express mail to the sorting section;
detecting information of the express mail, conveying the express mail to a weighing code scanning section by a conveying mechanism, triggering a static code scanning camera on a multi-face code scanning rack to simultaneously scan and read bar codes on the front, back, left and right 4 faces of the express mail, triggering a top dynamic code scanning camera of the multi-face code scanning rack to photograph and read single-number information of the face of the express mail, measuring the volume of the express mail by a 3D volume camera at the top, continuously detecting the weight of the express mail by a weighing platform between the weighing code scanning section and a sorting section, calculating the weight of the express mail by a weight calculation formula of the express mail, and recording the bar code information and the weight information by a control device and transmitting the bar code information and the weight information to a front server of the express mail for storage;
the method comprises the steps that a express mail foreground server performs information matching on stored barcodes and barcodes stored in an express mail background server, once the barcodes are successfully matched, the express mail foreground server is triggered to send a port number to the express mail foreground server, the express mail foreground server sends the port number information to a control device, a sorting machine obtains the express mail port number information from the control device, the sorting machine is triggered to perform express mail sorting action in a specified time, and express mail belonging to different port numbers is driven into different matrix bands through swing arms of the sorting machine.
The foregoing description is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, and all equivalent structures made by the description of the invention and the accompanying drawings, or direct or indirect application in other related technical fields, are equally included in the scope of the invention.
Claims (8)
1. A high-speed multiaspect sweeps a yard, detection system that weighs which characterized in that: the system comprises a express mail background server (1) and an express mail foreground server (2), wherein the express mail background server is in signal connection with the express mail foreground server, the express mail background server is used for inputting and storing bar codes, weights and mailing information of each express mail (3), and the express mail foreground server is used for inputting and storing the bar codes, the weights and the volumes of each express mail; the express mail foreground server performs information matching on the stored bar codes and the bar codes stored by the express mail background server, and once the bar code information is successfully matched, the express mail background server is triggered to send a grid number to the express mail foreground server;
the automatic sorting device comprises a conveying mechanism, wherein the conveying mechanism comprises a telescopic section (4) for conveying the express mail from a truck, a weighing code scanning section (5) for detecting the weight of the express mail and a sorting section (6) for sorting the express mail, the telescopic section is positioned at the upstream of the weighing code scanning section, the weighing code scanning section is positioned at the upstream of the sorting section, the conveying mechanism is used for bearing the express mail to be detected, conveying the express mail to be detected from the telescopic section to the weighing code scanning section for detecting the weight and the volume of the express mail, and conveying the detected express mail to the sorting section for sorting according to the number of the lattice codes;
The automatic weighing machine comprises a detection mechanism, and further comprises a multi-face code scanning frame (51), a static code scanning camera (511), a dynamic code scanning camera (512), a 3D volume camera (513) and a weighing table (514), wherein the static code scanning camera comprises a first code scanning camera set (5111), a second code scanning camera set (5112), a third code scanning camera set (5113) and a fourth code scanning camera set (5114), the multi-face code scanning frame spans over the weighing code scanning section, the static code scanning camera, the dynamic code scanning camera and the 3D volume camera are arranged on the multi-face code scanning frame, the static code scanning camera is used for identifying single bar code information of a express mail face, the dynamic code scanning camera is used for identifying single number information of the express mail face, the 3D volume camera is used for measuring volume information of the express mail, and the weighing table is located in the weighing code scanning section and used for weighing weight information of the express mail;
the top of the multi-face code scanning frame is provided with a first lamp group (515), a dynamic code scanning camera and a 3D volume camera, the first lamp group, the dynamic code scanning camera and the 3D volume camera are all vertically downwards oriented to the weighing code scanning section, the outer circumference of the multi-face code scanning frame is respectively provided with a first light supplementing platform (52), a second light supplementing platform (53), a third light supplementing platform (54) and a fourth light supplementing platform (55) which are parallel to the weighing code scanning section, the first light supplementing platform is provided with a second lamp group (521) and a first code scanning camera group, the second light supplementing platform is provided with a third lamp group (531) and a second code scanning camera group, the third light supplementing platform is provided with a fourth lamp group (541) and a third code scanning camera group, the fourth light supplementing platform is provided with a fifth lamp group (551) and a fourth code scanning camera group, and the second code scanning camera group, the fourth code scanning camera group and the fourth code scanning camera group are all oriented to the weighing code scanning section;
The multi-face code scanning frame further comprises four upright posts (516) which are vertically arranged upwards, the four upright posts are of a telescopic structure, the upper parts of the four upright posts are connected with the top of the multi-face code scanning frame, the middle parts of the four upright posts are respectively connected with the first light supplementing platform, the second light supplementing platform, the third light supplementing platform and the fourth light supplementing platform, and the tops of the first light supplementing platform, the second light supplementing platform, the third light supplementing platform, the fourth light supplementing platform and the frame are vertically adjusted through the telescopic structure of the four upright posts; the top of the multi-surface code scanning rack is a rectangular frame (517), four sides of the rectangular frame are connected with the tops of the four upright posts, the rectangular frame is horizontally placed, and the first lamp group and the dynamic code scanning camera are arranged in the center of the rectangular frame;
the sorting device comprises a sorting machine (61) and a matrix belt (62), wherein the sorting machine sorts the express items in different administrative areas and pushes the express items to the matrix belt corresponding to the grid number through a pushing arm of the sorting machine for express item conveying;
the system comprises a control device, a speed control device and a speed control device, wherein the control device is used for controlling the work of a conveying mechanism, a static code scanning camera, a dynamic code scanning camera, a 3D volume camera, a weighing platform, a sorting machine and a lamp set, and is used for recording single number information, bar code information, weight information and volume information of a speed item and feeding the single number information, the bar code information, the weight information and the volume information back to a speed item background server and a speed item foreground server;
Two parallel cross beams (518) are arranged in a rectangular frame at the top of the multi-face code scanning frame, two ends of the two cross beams are fixedly connected with two sides of the rectangular frame, and the first lamp set, the dynamic code scanning camera and the 3D volume camera are respectively arranged on the lower surfaces of the central positions of the two cross beams;
define the light filling platform of feed side of conveying mechanism be first light filling platform, the light filling platform of discharge side of conveying mechanism is second light filling platform, the light filling platform on the left and right sides of operation platform is third light filling platform, fourth light filling platform respectively, first light filling platform with second light filling platform position is relative and be in same level, third light filling platform with fourth light filling platform position is relative and be in same level, first light filling platform, second light filling platform's level (H1) is all greater than third light filling platform, fourth light filling platform's level (H2), first light filling platform, second light filling platform's level (H1) is 2.4m, third light filling platform, fourth light filling platform's level (H2) is 2.1m.
2. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the side where the first light supplementing platform is located is the front side, the side where the second light supplementing platform is located is the back side, the second lamp set is opposite to the third lamp set in position, the first code scanning camera set is opposite to the second code scanning camera set in position, the second lamp set is 20 degrees by the back and upward inclination angle (alpha), the first code scanning camera set is 20 degrees by the back and forth and downward inclination angle (alpha 1), the third lamp set is 20 degrees by the back and forth and upward inclination angle (beta), and the second code scanning camera set is 20 degrees by the back and forth and downward inclination angle (beta 1).
3. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the fourth lamp group is opposite to the fifth lamp group in position, the third code scanning camera group is opposite to the fourth code scanning camera group in position, the fourth lamp group is 30 degrees from left to right and upward inclination (gamma), the third code scanning camera group is 30 degrees from left to right and downward inclination (gamma 1), the fifth lamp group is 30 degrees from right to left and upward inclination (theta), and the fourth code scanning camera is 30 degrees from right to left and downward inclination (theta 1).
4. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the first code scanning camera set and the second code scanning camera set are both provided with two static code scanning cameras, the two static code scanning cameras of the first code scanning camera set and the two static code scanning cameras of the second code scanning camera set are all horizontally and linearly arranged, the linear distance (H5) between the two static code scanning cameras of the first code scanning camera set is 0.46m, the linear distance (H6) between the two static code scanning cameras of the second code scanning camera set is 0.46m, the vertical distance (H7) between the two static code scanning cameras of the first code scanning camera set and the weighing code scanning section is 0.9m, and the vertical distance (H8) between the two static code scanning cameras of the second code scanning camera set and the weighing code scanning section is 0.9m.
5. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the third code scanning camera set and the fourth code scanning camera set are both provided with two static code scanning cameras, the two static code scanning cameras of the third code scanning camera set and the two static code scanning cameras of the fourth code scanning camera set are all longitudinally and linearly arranged, the linear distance (H9) between the two static code scanning cameras of the third code scanning camera set is 0.32m, the linear distance (H10) between the two static code scanning cameras of the fourth code scanning camera set is 0.32m, and the vertical distance (H11) between the static code scanning cameras which are longitudinally and linearly arranged and are close to the weighing code scanning section side and the weighing code scanning section is 0.38m.
6. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the dynamic code scanning cameras at the top of the multi-face code scanning frame are arranged in three, the three dynamic code scanning cameras are arranged in a transverse straight line mode, the straight line distance (H3) between two adjacent dynamic code scanning cameras is 0.3m, and the vertical distance (H4) between the three dynamic code scanning cameras and the weighing code scanning section is 1.84m.
7. The high-speed multi-faceted code scanning and weighing detection system of claim 1, wherein: the control device comprises a central control console (7) and a central control processor (8), wherein the central control processor is arranged in the central control console, a display screen (71) and a control panel (72) are arranged on the table top of the central control console, the central control processor is respectively electrically connected with the control panel, the display screen and a express mail foreground server, and the control panel controls the power supply on-off of the conveying mechanism, the static code scanning camera, the dynamic code scanning camera, the 3D volume camera, the weighing table, the sorting machine and the lamp group.
8. The high-speed multi-face scanning code and weighing detection method applied to the high-speed multi-face scanning code and weighing detection system according to any one of claims 1-7 is characterized in that:
the method comprises the following steps:
s1, loading and scanning a express mail, wherein before loading the express mail, a scanner is used for scanning a bar code attached to the express mail to obtain express mail bar code information, the express mail bar code information is sent to an express mail background server, and the express mail bar code information is waited for matching;
s2, unloading and conveying the express mail, wherein when the express mail is unloaded, the express mail with the bar code attached and the bar code not facing downwards is placed on the telescopic section, and the conveying mechanism continuously conveys the express mail;
s3, detecting information of the express mail, conveying the express mail to a weighing code scanning section by a conveying mechanism, triggering a static code scanning camera on a multi-face code scanning rack to simultaneously scan and read bar codes on the front, back, left and right 4 faces of the express mail, triggering a top dynamic code scanning camera of the multi-face code scanning rack to photograph and read single-number information of the face of the express mail, measuring the volume of the express mail by a 3D volume camera at the top, continuously detecting the weight of the express mail by a weighing platform between the weighing code scanning section and a sorting section, calculating the weight of the express mail by a weight calculation formula of the express mail, and recording the bar code information and the weight information by a control device and transmitting the bar code information and the weight information to a front server of the express mail for storage;
The weight of the express item is calculated using the following formula a,
wherein:
the average weight of the M-express mail for n times is measured in kg;
M n -the weight of the nth test of the express item in kg;
n-number of weight checks of the part;
s4, sorting the express mail, wherein the stored bar codes are matched with the bar codes stored by the express mail background server by the express mail foreground server, once the bar code information is successfully matched, the express mail background server is triggered to send the port number to the express mail foreground server, the express mail foreground server sends the port number information to the control device, the sorting machine acquires the express mail port number information from the control device, the sorting machine is triggered to perform express mail sorting action in a specified time, and the express mail belonging to different port numbers is driven into different matrix bands through swing arms of the sorting machine;
the trigger moment of the sorter is calculated using the following formula b,
T＝T 1 +t P equation b
Wherein:
the T-sorting machine triggers the sorting action for the express items;
T 1 -moment when the express mail enters the weighing code scanning section and the express mail bar code is detected for the first time;
t P -the process time in s of the fact that the first bar code detects the fact that the P-th sorting machine triggers a sorting action on the express mail;
in the above formula b, t P Can be obtained by combining the following formulas c, d and e,
t P ＝t 1 +t 2 Formula c
Wherein:
t 1 -the time required for the first detection of the barcode of the express mail until the express mail leaves the weighing and scanning section is given in s;
X 1 -the first detection of the distance between the bar code and the end of the weighing sweep segment by the express mail, in m;
V 1 -the speed of transport of the express mail on the weighing and scanning section, in m/s;
t 2 -the time required for the express mail to be delivered to the P-th sorting machine corresponding to the number of grid, in s;
X P -the distance between the piece from the beginning of the sorting section to the position of the P-th sorting machine, in m;
V 2 the speed of transport of the express mail over the sorting section is in m/s.
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