CN110918503B

CN110918503B - Device for assisting in stacking packages

Info

Publication number: CN110918503B
Application number: CN201811098446.7A
Authority: CN
Inventors: 韩嘉星
Original assignee: Beijing Jingdong Zhenshi Information Technology Co Ltd
Current assignee: Beijing Jingdong Zhenshi Information Technology Co Ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2022-02-01
Anticipated expiration: 2038-09-20
Also published as: CN110918503A

Abstract

The invention discloses a device for assisting in parcel stacking. According to the invention, the color-changeable luminous band can be arranged along the manual sorting section of the conveyor, the color-changeable luminous band can generate the dynamic luminous section which follows the packages in the manual sorting section, and the dynamic luminous section which follows the packages emits light with the luminous color corresponding to the flow direction marks of the packages, so that the traditional mode of identifying the flow direction marks by naked eyes can be replaced by the luminous color, thereby being beneficial to reducing the eye and mental burden of sorters and further improving the sorting efficiency and the sorting accuracy.

Description

Device for assisting in stacking packages

Technical Field

The invention relates to the field of logistics distribution, in particular to parcel stacking of a small and medium-sized express distribution center, and particularly relates to a device for assisting parcel stacking, a control device for assisting visual flow direction prompt of parcel stacking, and a control method for assisting visual flow direction prompt of parcel stacking.

Background

With the continuous development of the logistics distribution industry, logistics companies can set small and medium-sized distribution centers in various areas such as provincial level and city level to share the pressure of large-scale transportation hubs.

Fig. 1 is a schematic operation flow diagram of a distribution center. As shown in fig. 1, the operation flow of the distribution center includes:

s11: unloading the package into a conveyor;

s12: picking packages from a conveyor and placing them in stacks;

s13: and performing subsequent operations on the piled packages, such as checking goods, boxing and shipping, and the like.

S12 in the above operation flow is called "rough sorting" operation, and the sorting is based on the flow direction of the parcel. Wherein, the flow direction of the package can be identified according to the areas of the large district level, the provincial level, the city level and the like. For example, "east China parcel", "northeast China parcel", "Jiangsu province parcel", "Ben City parcel", and the like. The flow direction sign in different regions can be printed on the parcel label, and every sorting person needs to know and remember the flow direction sign in the region that oneself is responsible for, seeks the label that takes of the parcel that conveys on the conveyer through the naked eye and selects.

As can be seen from the above, the parcel stacking operation of the medium and small sized distribution center currently adopts a manual sorting mode, which requires a sorter to identify the flow direction identification printed on the label carried by the parcel by naked eyes, so as to place the parcels with the same or similar flow direction.

Because the flow direction sign of parcel needs sorter's naked eye discernment to the flow direction sign of parcel needs special memory, consequently, letter sorting efficiency is not high. Moreover, the accuracy of sorting is mainly determined by the observational power and concentration power of the sorter, and long-time work easily causes fatigue of the sorter, thereby causing the observational power and the concentration power to be reduced, and thus sorting errors are liable to occur.

Disclosure of Invention

Embodiments of the present invention provide an apparatus for assisting in the stacking of parcels that helps to reduce the eye and mental burden on sorters, thereby helping to improve sorting efficiency and sorting accuracy. The device includes:

a conveyor configured with a manual sorting section downstream of the conveyor;

a color variable luminous band arranged along the manual sorting section;

an image acquisition device disposed upstream of the manual sorting section;

a registration sensor disposed upstream of the manual sorting section;

a processor to:

configuring a luminous color corresponding to the flow direction identification printed on the parcel label for the parcel based on the image of the parcel label acquired by the image acquisition device;

determining a conveying rate of the packages on the conveyor based on the positioning detection signal of the positioning sensor;

controlling the variable color lighting strip to produce a dynamic lighting segment corresponding to a parcel entering the manual sortation segment based on the configured lighting color and the determined conveyance rate, wherein a position of the dynamic lighting segment is shifted by the conveyance rate of the corresponding parcel, and a lighting color of the dynamic lighting segment identifies the configured lighting color for a flow direction of the corresponding parcel.

Optionally, the processor further maintains a correspondence between the package label of each package and the configured luminescent color for that package.

Optionally, the image acquisition device, the positioning sensor, and the color-variable light-emitting band are respectively and correspondingly arranged in two conveyor belt regions in the width direction of the conveyor belt of the conveyor, and the processor respectively controls the color-variable light-emitting band corresponding to each conveyor belt region to generate a dynamic light-emitting segment corresponding to the package in the conveyor belt region.

Optionally, the positioning sensor comprises an initial positioning sensor and a secondary positioning sensor, wherein: the initial positioning sensor is arranged upstream of the image acquisition device; the secondary positioning sensor is disposed downstream of the primary positioning sensor; the processor triggers the image acquisition device according to the positioning detection signals generated by the primary positioning sensor, and determines the conveying speed of the packages according to the positioning detection signals generated by the primary positioning sensor and the secondary positioning sensor.

Optionally, the conveyor is provided with baffles at the sides of the manual sorting section, and the color-changeable luminous bands are arranged along the edges of the baffles.

In another embodiment of the present invention, a control apparatus for facilitating visual flow direction cues for parcel stacking is provided, comprising a processor configured to:

configuring a light emitting color corresponding to a flow direction identification printed on a parcel label for the parcel based on an image of the parcel label acquired upstream of a manual sorting section of a conveyor;

determining a conveying rate of the packages on the conveyor based on a positioning detection signal obtained upstream of the manual sorting section;

controlling a variable color lighting strip disposed along the manual sorting segment to produce a dynamic lighting segment corresponding to a parcel entering into the manual sorting segment based on the configured lighting color and the determined conveyance rate, wherein a position of the dynamic lighting segment is shifted by the conveyance rate of the corresponding parcel, and wherein the lighting color of the dynamic lighting segment identifies the configured lighting color for a flow direction of the corresponding parcel.

Optionally, further comprising: maintaining a correspondence between the package label of each package and the color of illumination configured for that package.

Optionally, further comprising: triggering the image acquisition device according to a positioning detection signal generated by an initial positioning sensor arranged upstream of an image acquisition point; determining a rate of conveyance of the package based on a position detection signal generated by the primary positioning sensor and a position detection signal generated by a secondary positioning sensor disposed downstream of the primary positioning sensor.

In another embodiment of the present invention, a control method for visual flow direction cue for assisting parcel stacking is provided, which comprises:

In another embodiment of the present invention, a non-transitory computer readable storage medium is provided that stores instructions that, when executed by a processor, cause the processor to:

Optionally, the instructions, when executed by the processor, further cause the processor to: maintaining a correspondence between the package label of each package and the color of illumination configured for that package.

Optionally, the instructions, when executed by the processor, further cause the processor to: triggering the image acquisition device according to a positioning detection signal generated by an initial positioning sensor arranged upstream of an image acquisition point; determining a rate of conveyance of the package based on a position detection signal generated by the primary positioning sensor and a position detection signal generated by a secondary positioning sensor disposed downstream of the primary positioning sensor.

As can be seen from the above, according to the above-mentioned embodiments, the color-changeable luminous strip is arranged along the manual sorting section of the conveyor, the color-changeable luminous strip can generate a dynamic luminous section following a parcel in the manual sorting section, and since the dynamic luminous section following a parcel emits light with a luminous color corresponding to a flow direction mark of the parcel, a conventional manner of identifying the flow direction mark with naked eyes can be replaced with a luminous color, thereby helping to reduce eye and mental burden of a sorter, and further improving sorting efficiency and sorting accuracy.

Drawings

FIG. 1 is a schematic view of an operation flow of a distribution center;

FIGS. 2a and 2b are schematic structural views of an apparatus for assisting in the stacking of parcels in one embodiment;

FIG. 3 is a schematic view of the electrical control structure of the apparatus for assisting in the stacking of parcels in the embodiment shown in FIGS. 2a and 2 b;

FIGS. 4a to 4c are exemplary diagrams of the light emitting state of the color-variable light-emitting strip based on the electrical control structure shown in FIG. 3;

FIGS. 5a and 5b are schematic diagrams of an apparatus for assisting in the stacking of parcels in one embodiment;

FIG. 6 is a schematic view of the electrical control principle of the device for assisting in the stacking of parcels according to the embodiment of FIGS. 5a and 5 b;

FIG. 7 is a flow diagram of a control method for visual flow direction cues to assist in parcel stacking, under an embodiment;

FIG. 8 is an expanded flow chart of a control method for visual flow direction prompting for assisting parcel stacking in the embodiment shown in FIG. 7.

Description of the reference numerals

10 conveyor

11 frame

12 conveyor belt

13 drive shaft

14 baffle

100 wrap

20 color-changeable luminous band

30 image acquisition device

40 positioning sensor

40a initial positioning sensor

40b secondary positioning sensor

50 manual sorting position

60 processor

70 driver

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.

Fig. 2a and 2b are schematic structural views of an apparatus for assisting in the stacking of parcels in one embodiment. As shown in FIGS. 2a and 2b, in one embodiment, the means for assisting in the stacking of parcels comprises a conveyor 10, a variable color lighting strip 20, an image capture device 30, a positioning sensor 40, and a processor (not shown in FIGS. 2a and 2 b).

The conveyor 10 includes a frame 11, a conveyor belt 12 laid on the frame 11, and a transmission shaft 13 for driving the conveyor belt 12 to move. The moving direction of the conveyor belt 12 is the conveying direction of the package, the conveyor 10 is provided with a manual sorting section S0 downstream of the conveying direction of the conveyor belt 12, and a manual sorting level 50 is arranged outside the manual sorting section S0. The packages to be sorted may be sequentially placed on the conveyor belt 12 of the conveyor 10 and sequentially transported downstream to the manual sorting section S0 by the movement of the conveyor belt 12, so that the sorters at the manual sorting position 50 can sort the packages from the conveyor 10 and place them in stacks.

The color-changeable lighting strip 20 may have a plurality of colors, which may be respectively represented in different flow direction indicators. The color variable luminous strip 20 is disposed along the manual sorting section S0, and for a package entering the manual sorting section S0, the color variable luminous strip 20 may generate a luminous color corresponding to the flow direction indication of the package following the package.

As can be seen in FIGS. 2a and 2b, the conveyor 10 is provided with baffles 14 at the sides of the hand sorting section S0, and the variable color light strip 20 is disposed along the edges of the baffles 14. In this embodiment, the color-variable light-emitting strip 20 includes granular color-variable light-emitting elements discretely arranged along the edge of the baffle 14, and the granular color-variable light-emitting elements may be light-emitting diodes (LEDs) having four colors of red, yellow, blue, and green.

The image capturing device 30 may be any device having an image capturing function, such as a camera, for capturing an image of a flow direction indicator of the parcel transported on the conveyor belt 12 of the conveyor 10, such as a slide number, to identify information that can distinguish the flow direction of the parcel. Also, the image pickup device 30 is disposed upstream of the manual sorting section S0.

As can be seen in fig. 2a and 2b, the conveyor 10 passes through a portal frame 31, and the image capture device 30 is suspended on top of the portal frame 31 to form an image capture spot upstream of the hand sorting section S0. The side of the door frame 31 may be provided with an electronic box 32 for supplying power to the device.

The registration sensor 40 is disposed upstream of the manual sorting section S0. As can be seen in fig. 2a and 2b, the positioning sensors 40 may include a primary positioning sensor 40a and a secondary positioning sensor 40 b. The position sensor 40 may be any sensing device capable of sensing the passage of a package, for example, a laser sensor may be used as at least one of the primary position sensor 40a and the secondary position sensor 40 b.

Wherein the primary registration sensor 40a is disposed upstream of the image capture device 30 and the secondary registration sensor 40b is disposed downstream of the primary registration sensor 40 a. The processor may trigger the image capturing device 30 according to the positioning detection signal generated by the primary positioning sensor 40a, and may determine the conveying rate of the parcel according to the positioning detection signals generated by the primary positioning sensor 40a and the secondary positioning sensor 40b, for example, the position offset between the primary positioning sensor 40a and the secondary positioning sensor 40b is a fixed value, and the conveying rate may be obtained by dividing the fixed value by the interval duration between the two positioning detection signals.

Fig. 3 is a schematic view of an electric control structure of the device for assisting the package stacking in the embodiment shown in fig. 2a and 2 b. Referring to fig. 2a and 2b in conjunction with fig. 3, processor 60 is configured to implement at least the following operations:

receiving the images of the package labels of the packages on the conveyor 10 acquired by the image acquisition device 30;

configuring a luminous color corresponding to the flow direction identification printed on the parcel label for the parcel based on the image of the parcel label;

determining a conveying rate of the package on the conveyor 10 based on the position detection signal of the position sensor 40;

based on the configured glow color and the determined conveyance rate, the variable color lighting strip 20 is controlled to produce a dynamic glow segment corresponding to the package entering the manual sorting segment S0, wherein the position of the dynamic glow segment is shifted by the conveyance rate of the corresponding package, and wherein the glow color of the dynamic glow segment identifies the configured glow color for the flow direction of the corresponding package.

In the configuration shown in FIG. 3, the processor 60 may control the variable color lighting strip 20 via a driver 70.

Considering that the luminescent colors are distinguished by taking packages as a unit, in order to accurately ensure that the luminescent color corresponding to each package can correctly express the flow direction identification of the package, the processor 60 may further maintain the corresponding relationship between the package label of the package and the luminescent color configured for the package, and each time a package is configured with a corresponding luminescent color, may add a corresponding entry in the maintained corresponding relationship, and query the corresponding entry in sequence at the time when each package is predicted to enter the manual sorting section S0 according to the transmission rate.

For each measured delivery rate, which may be considered to be the rate of all packages currently on the conveyor 12, the change in the delivery rate is primarily affected by the weight of the packages currently loaded on the conveyor 12, and therefore, the determination of the delivery rate for each time may be considered to be a process for compensating or correcting the current delivery rate triggered at the point in time of one package, rather than having to be differentiated in units of packages.

Fig. 4a to 4c are exemplary diagrams of the light emitting state of the color-variable light emitting strip based on the electrical control structure shown in fig. 3. In the example shown in fig. 4a to 4c, packages with package labels P1, P2, P3, P4 and P5 in this order are placed on conveyor 10 for conveying and captured by image capture device 30, and accordingly, the correspondence maintained in processor 60 is shown in table 1.

TABLE 1

The colors red, yellow, blue and green in table 1 represent different directions of flow of the packages.

Referring first to fig. 4a, when package 100 labeled P1 arrives at the entrance of manual sorting section S0, processor 60 determines that the corresponding light-emitting color of package 100 is red by querying the correspondence relationship, and generates vector-type control signals { … … 0, R } to driver 70, where 0 indicates light-off and R indicates red light.

Referring again to fig. 4b, package 100 labeled P1 has entered manual sorting block S0 and another package 100 'labeled P2 has arrived at manual sorting block S0, at which time processor 60 has determined that the emission color corresponding to package 100 is red and that the emission color corresponding to package 100' is yellow by querying the correspondence, and thus, in conjunction with estimating the position offset of package 100 from the conveying rate, generates vector-type control signals { … … 0, R, 0, 0, Y }, where 0 represents off-light, R represents red light, and Y represents yellow light, to driver 70.

Referring finally to fig. 4c, package 100 labeled P1 and package 100 ' labeled P2 have both entered manual sorting section S0 and yet another package 100 "labeled P3 will arrive but will not arrive at manual sorting section S0, at which time processor 60 has determined that the respective colors of illumination of packages 100 and 100 ' are red and yellow, and determined that the color of illumination of package 100" is yellow by querying the correspondence, and therefore, in conjunction with the rate of conveyance, the amount of positional offset of packages 100 and 100 ' is estimated, producing a vector-type control signal { … … 0, R, 0, 0, 0, Y, 0, 0, 0, 0} to driver 70, where 0 represents off light, R represents red light and Y represents yellow light.

By analogy, processor 60 may control color variable light strip 20 to generate dynamic light segments following packages labeled with package labels P1, P2, P3, P4, and P5, so as to express the flow direction of each package through the visualization effect of the dynamic light segments.

As can be seen from the above-mentioned embodiments, the color-variable luminous band 20 arranged along the manual sorting section S0 can produce a dynamic luminous section following the parcel, and since the dynamic luminous section emits light with a luminous color corresponding to the flow direction indication of the parcel, the conventional manner of identifying the flow direction indication with naked eyes can be replaced with a luminous color, thereby helping to reduce eye and mental burdens of sorters, and further improving sorting efficiency and sorting accuracy.

In the above-described embodiment, the positioning sensors 40 and the color-variable light-emitting tapes 20 are disposed on both sides of the conveyor belt 12 of the conveyor 10 in the width direction. The positioning sensors 40 are disposed on both sides of the conveyor belt 12 to adapt to the offset placement of the packages on the conveyor belt, and the color-changeable luminous bands 20 are disposed on both sides of the manual sorting section S0 to allow for the manual sorting positions 50 disposed on both sides. Alternatively, the registration sensor 40 and/or the color-changeable luminescent belt 20 may be disposed on only one side in the width direction of the conveyor belt 12.

In addition, there is a case where two parcels are conveyed side by side on the conveyor belt 12, and in this case, if the flow directions of the parcels conveyed side by side are different, the manual sorting result is affected. In this case, in another embodiment, the conveyor belt 12 of the conveyor 10 is divided in the width direction to form two side conveyor belt zones, and the two side conveyor belt zones are visually presented respectively.

Fig. 5a and 5b are schematic structural views of an apparatus for assisting in the stacking of parcels in one embodiment. Referring to fig. 5a and 5b, the

image pickup devices

30L and 30R, the

registration sensors

40L and 40R, and the color variable

luminous belts

20L and 20R are respectively disposed in correspondence with the belt areas AL and AR on both sides in the width direction of the belt 12 of the conveyor 10. Wherein the acquisition ranges of the

image acquisition devices

30L and 30R may be respectively limited within the respective corresponding two-side conveyance belt regions AL and AR and do not overlap with each other. Similarly, the detection ranges of the

registration sensors

40L and 40R may be respectively limited within the respective corresponding both-side conveyance belt regions AL and AR and may not overlap each other. Alternatively, the detection ranges of the

positioning sensors

40L and 40R may partially or completely overlap, and when a parcel is detected by both the

positioning sensors

40L and 40R, the processor 60 may distinguish the home one-side belt area AL or AR according to the intensity of the detection signal.

For the case of dividing the two side conveyor zones AL and AR, processor 60 controls the variable

color lighting strips

20L and 20R corresponding to the different side conveyor zones AL and AR, respectively, to each independently produce a dynamic lighting segment corresponding to a parcel within that side conveyor zone AL or AR. That is, the light-emitting states of the variable color light-emitting

bands

20L and 20R may be different depending on the packages in the both side belt regions AL and AR and the difference in the flow direction thereof.

In addition, the

registration sensors

40L and 40R each include an initial registration sensor 40a and a secondary registration sensor 40b, and each of the variable

color lighting strips

20L and 20R may be identical in structure and lighting control principle to the variable color lighting strip 20 in the embodiment shown in FIGS. 2a and 2 b.

Fig. 6 is a schematic diagram of the electrical control principle of the device for assisting the stacking of parcels in the embodiment shown in fig. 5a and 5 b. In the example shown in fig. 6, packages with package labels P1, P2, P3, P4 and P5 in this order are placed on conveyor 10 for conveying, wherein packages with package labels P1, P3 and P4 are captured by image capturing device 30R corresponding to right conveying belt area AR, packages with package labels P2 and P5 are captured by image capturing device 30L corresponding to left conveying belt area AR, and accordingly, the correspondence maintained in processor 60 further includes camera identifications CL and CR of

image capturing devices

30L and 30R, as shown in table 2.

Camera identification	Luminescent color	Package label
			CR	R (Red)	P1
CL	Y (yellow)	P2
			CR	Y (yellow)	P3
CR	B (blue)	P4
			CL	G (Green)	P5

TABLE 2

Processor 60 may distinguish the parcels within both conveyor zones AL and AR according to the camera identification in the correspondence as shown in table 2. Alternatively, as an alternative, the processor 60 may also independently maintain respective correspondences for the two side conveyor zones AL and AR, respectively.

The processor 60, in addition to being applied to the devices described in the above embodiments in the manner described hereinbefore, can also be applied to a separate device dedicated to controlling the variable-color lighting strip, which can be considered as a control device for assisting the parcel stacking of the distribution centre, and to which the processor is specifically adapted to:

based on the configured lighting color and the determined conveying speed, controlling a color-variable lighting strip arranged along the manual sorting section to generate a dynamic lighting section corresponding to the packages entering into the manual sorting section, wherein the position of the dynamic lighting section is shifted at the conveying speed of the corresponding packages, and the lighting color of the dynamic lighting section is the configured lighting color of the flow direction identification of the corresponding packages.

Wherein, for a package configured with a luminescent color, the processor may be further configured to maintain a correspondence of a package label of the package to the luminescent color configured for the package.

And, for use of the registration detection signal, the processor may be further configured to trigger the image capturing device in accordance with a registration detection signal generated by an initial registration sensor disposed upstream of the image capturing location, and to determine the rate of conveyance of the package in accordance with the registration detection signal generated by the initial registration sensor and a registration detection signal generated by a secondary registration sensor disposed downstream of the initial registration sensor.

The above-described functions of the processor may not be limited to the processor as an execution vehicle, but may be understood as a method not limited to an execution vehicle, which may be regarded as a control method for assisting in visualizing flow direction cues for parcel stacking.

FIG. 7 is a flow diagram of a control method for visual flow direction cues to assist in parcel stacking, under an embodiment. As shown in fig. 7, in one embodiment, a visual flow direction prompting method for parcel stacking of an auxiliary distribution center includes:

s71: the packages are assigned a light color corresponding to the flow direction indicators printed on the package labels based on images of the package labels captured upstream of the manual sorting section of the conveyor.

S72: the rate of conveyance of the packages on the conveyor is determined based on a position detection signal obtained upstream of the manual sorting section.

S73: based on the configured lighting color and the determined conveying speed, controlling a color-variable lighting strip arranged along the manual sorting section to generate a dynamic lighting section corresponding to the packages entering into the manual sorting section, wherein the position of the dynamic lighting section is shifted at the conveying speed of the corresponding packages, and the lighting color of the dynamic lighting section is the configured lighting color of the flow direction identification of the corresponding packages.

FIG. 8 is an expanded flow chart of a control method for visual flow direction prompting for assisting parcel stacking in the embodiment shown in FIG. 7. Compared to the flow shown in fig. 7, the extended flow shown in fig. 8 further includes: maintaining a correspondence of a package label of a package to a color of illumination configured for the package. Referring to fig. 8, the expansion process includes:

s81: the method includes the steps of configuring a package with a luminescent color corresponding to a flow direction identifier printed on the package label based on an image of the package label captured upstream of a manual sorting section of the conveyor, and updating a correspondence between the package label of the package and the luminescent color configured for the package.

S82: the rate of conveyance of the packages on the conveyor is determined based on a position detection signal obtained upstream of the manual sorting section.

S83: the maintained correspondence is queried and the shift rate of the dynamic lighting segment of the variable color lighting strip is estimated at the determined transfer rate.

S84: and based on the inquired luminous color and the estimated offset rate, controlling a variable color luminous band arranged along the manual sorting section to generate a dynamic luminous section corresponding to the package entering the manual sorting section, so that the position of the dynamic luminous section is offset by the conveying speed of the corresponding package, and the luminous color of the dynamic luminous section is the luminous color configured by the flow direction identification of the corresponding package.

For S72 and S82 of the above two processes, the conveyance rate of the package may be determined from the registration detection signal generated by the primary registration sensor disposed upstream of the image acquisition point and the registration detection signal generated by the secondary registration sensor disposed downstream of the primary registration sensor.

In addition, the two processes may further include: triggering the image acquisition device according to a positioning detection signal generated by an initial positioning sensor arranged upstream of an image acquisition point.

In another embodiment, a non-transitory computer readable storage medium is provided that stores instructions that, when executed by a processor, may cause the processor to perform the flow steps of a control method for visual flow direction cues to assist in parcel stacking.

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 made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An apparatus for assisting in the stacking of parcels, comprising:

a conveyor configured with a manual sorting section downstream of the conveyor;

a color variable luminous band arranged along the manual sorting section;

an image acquisition device disposed upstream of the manual sorting section;

a registration sensor disposed upstream of the manual sorting section;

a processor to:

2. The apparatus of claim 1, wherein the processor further maintains a correspondence between the package label of each package and the color of illumination configured for that package.

3. The apparatus according to claim 1, wherein the image capturing device, the position sensor, and the color-variable light-emitting strip are respectively disposed on two side conveyor belt zones in a conveyor belt width direction of the conveyor, and the processor respectively controls the color-variable light-emitting strip corresponding to each side conveyor belt zone to generate a dynamic light-emitting segment corresponding to the parcel in the side conveyor belt zone.

4. The apparatus of claim 1, wherein the positioning sensor comprises an initial positioning sensor and a secondary positioning sensor, wherein:

the initial positioning sensor is arranged upstream of the image acquisition device;

the secondary positioning sensor is disposed downstream of the primary positioning sensor;

the processor triggers the image acquisition device according to the positioning detection signals generated by the primary positioning sensor, and determines the conveying speed of the packages according to the positioning detection signals generated by the primary positioning sensor and the secondary positioning sensor.

5. The apparatus of claim 1, wherein the conveyor is provided with baffles at the sides of the hand sorting section, the color-changeable light-emitting strips being arranged along the edges of the baffles.

6. A control device for facilitating visual flow direction prompting of parcel stacking, comprising a processor configured to:

7. The control device of claim 6, wherein the processor is further configured to:

maintaining a correspondence between the package label of each package and the color of illumination configured for that package.

8. The control device of claim 6, wherein the processor is further configured to:

triggering the image acquisition device according to a positioning detection signal generated by an initial positioning sensor arranged upstream of an image acquisition point;

determining a rate of conveyance of the package based on a position detection signal generated by the primary positioning sensor and a position detection signal generated by a secondary positioning sensor disposed downstream of the primary positioning sensor.

9. A control method for visual flow direction prompt of parcel stacking of an auxiliary distribution center is characterized by comprising the following steps:

10. The control method according to claim 9, characterized by further comprising:

11. The control method according to claim 9, characterized by further comprising:

12. A non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to:

13. The non-transitory computer readable storage medium of claim 12, wherein the instructions, when executed by a processor, further cause the processor to: maintaining a correspondence between the package label of each package and the color of illumination configured for that package.

14. The non-transitory computer readable storage medium of claim 12, wherein the instructions, when executed by a processor, further cause the processor to: