CN107176433B - Article transfer assist system - Google Patents
Article transfer assist system Download PDFInfo
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- CN107176433B CN107176433B CN201610132772.XA CN201610132772A CN107176433B CN 107176433 B CN107176433 B CN 107176433B CN 201610132772 A CN201610132772 A CN 201610132772A CN 107176433 B CN107176433 B CN 107176433B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0241—Quantity of articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/041—Camera
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Abstract
The application discloses article conveying auxiliary system includes: a conveyor for conveying articles; a counting device for counting the number of the articles on the conveying device; and a control device for acquiring the counted number and the counted time of the counting device and controlling the conveying efficiency of the articles accordingly. Based on the auxiliary system, the article conveying auxiliary system accurately controls the conveying efficiency according to the counting amount and the counting time, can acquire the real-time efficiency, solves the problem of manual adjustment hysteresis, controls the article conveying efficiency based on calculation and improves the accuracy.
Description
Technical Field
The present disclosure relates generally to information processing systems, and more particularly to information processing during article transfer, and more particularly to article transfer assist systems.
Background
For example, the article transported by the product processing industry may be a manufactured finished product, and the article transported by the logistics industry is a express, and the current situation of article transportation will be described below by taking the logistics industry as an example.
At present, in the process of collecting and distributing express items, after the express items are conveyed to a transfer station by a vehicle, the express items are conveyed by a conveyor belt, and generally, several branch lines are used for conveying the express items and are finally gathered together, so that the conveying efficiency of the branch lines is particularly critical, if the conveying efficiency is low, the working efficiency is low, and particularly when the number of the express items is increased, the express delivery speed is seriously influenced; and if the efficiency is too high, the express mail congestion can be caused when the branch lines are converged. The current solution to this problem relies on the experience of the operator to manually adjust the efficiency of the transfer, which is difficult to adjust with hysteresis and inaccuracy.
Disclosure of Invention
In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide an article transport assist system comprising: a conveyor for conveying articles; a counting device for counting the number of the articles on the conveying device; and a control device for acquiring the counted number and the counted time of the counting device and controlling the conveying efficiency of the articles accordingly;
the counting device comprises a camera and an image processing unit,
the camera is arranged above the conveying device and used for capturing image information of the object on the conveying device;
the image processing unit is used for counting the number of the articles according to the image information captured by the camera;
the control device is also used for acquiring the counting number and the counting time of the counting device and scoring the performance of the article transmission, wherein the performance scoring comprises the following steps:
wherein A1 and A2 are weighted values, and the value range is 0-1; va is the average real-time efficiency from the start of the operation; vs is standard efficiency and Vd is deviation efficiency;
when in use
When less than 0, correct
Equal to 0;
when in use
When less than 0, correct
Equal to 0.
Compared with the prior art, the invention has at least one beneficial effect that: the article conveying auxiliary system can accurately control the conveying efficiency according to the counting amount and the counting time, can obtain the real-time efficiency, solves the problem of manual adjustment hysteresis, controls the article conveying efficiency based on calculation, and improves the accuracy.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an article transport assist system according to the present invention;
FIG. 2 is a block diagram illustrating the operation of a counting device in the article transport assisting system according to the present invention;
FIG. 3 is a schematic flow chart showing the operation of the counting device in the article transport assisting system according to the present invention;
fig. 4 is a schematic structural diagram of a corresponding apparatus in the article transport assisting system of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention discloses an article conveying auxiliary system 100, which comprises a conveying device 101, a counting device 102 and a control device 103, wherein the conveying device is used for conveying articles, and the counting device is used for counting the number of the articles on the conveying device; and the control device is used for acquiring the counting number and the counting time of the counting device and controlling the conveying efficiency of the articles.
In an alternative embodiment, there may also be a calculation section 104, which may be part of the control device 103. And will be described in detail in the following part of the specification.
The above-mentioned objects of the present invention may be different according to different industries, such as manufacturing industry, the objects may refer to raw materials, manufactured goods, etc., and the logistics industry, and the above-mentioned objects may be fast goods. Namely, a conveying device for conveying the express items; the counting device is used for counting the number of the express mails on the conveying device; and the control device is used for acquiring the counting number and the counting time of the counting device and controlling the delivery efficiency of the express. For ease of understanding, the following is illustrated mostly on a logistics industry basis.
It should be noted that the auxiliary system for conveying articles disclosed in the present invention, when used in the logistics industry, may be used in multiple processes in the routing of express items, such as the above-mentioned unloading process, unloading express items from a transport vehicle, and conveying the express items to a warehouse through the auxiliary equipment, but other processes, such as sorting and loading processes, may also use the system in the present application. As long as the flow that the express mail needs to be transmitted exists, the system in the application can be used for obtaining the efficiency of express mail transmission and controlling the working process with a target according to the generated information so as to improve the working efficiency.
Of course, the flow requiring transmission refers to a flow of using equipment for short-distance transmission, for example, a transmission device in the system to transport by using a transportation mode such as automobile or air transportation, and does not belong to the "flow requiring transmission".
Taking unloading of the express in the logistics industry as an example, in general express delivery, the express is collected to a delivery station, all the express is unloaded from an express transport vehicle, and the express is delivered by using a delivery device. The destination to which the delivery device delivers the dispatch may be a warehouse. Similarly, the unloading efficiency refers to the efficiency of placing the packages onto the conveyor, and may be in units of "packages per second". For example, manually placing the packages on the conveyor, the speed of manually placing the packages may affect unloading efficiency. It is to be understood that this is by way of illustration only and is not to be taken by way of limitation. When the express delivery is conveyed on the conveying device, the counting device counts the express delivery, on one hand, the total number of the delivered express delivery can be recorded, whether the comparison is consistent with the total number of the unloaded express delivery is judged (the comparison is specific to the unloading process, other processes such as a sorting process can be compared, whether the comparison is consistent with the total number needing sorting, and if the comparison is in other fields such as a processing field, components are conveyed, whether the comparison is consistent with the number of the placed components is judged), and in addition, the efficiency of express delivery can be obtained according to the counted number and the counting time. The efficiency may be a real-time efficiency. It is to be understood that the above efficiency can be understood as the number of delivered packages per unit time, and the factors affecting the efficiency can be a plurality of factors, such as the speed of the delivery device, the efficiency of placing the packages on the delivery device, and the distance of placing the packages on the delivery device.
Taking the conveying device as an example, assuming that the conveying belt moves at a speed of 1m/s, the speed of each article driven by the conveying belt is 1m/s, and one article is placed on the conveying belt every 1m, and one article is conveyed every 1s, so that the efficiency of the conveying belt can be simply calculated to be 1 article per second; when the articles are placed one by one at intervals of 0.5m, the efficiency is 2 pieces per second; the placing interval is unchanged, the speed of the conveyor belt is increased to 2m/s, and the efficiency is 4 pieces per second. The function of the counting device and the efficiency of the transmission have been briefly described above, and the above values are for the sake of understanding and are not intended to limit the invention.
In an alternative embodiment, the counting device may be an image counting device comprising a camera and an image processing unit, the camera being arranged above the conveyor for capturing image information of the articles on the conveyor; the image processing unit is used for counting the number of the articles according to the image information captured by the camera; referring to fig. 2, the image processing unit may count the number of items by the following processing: step 210, determining a difference image according to a current image and a background image; step 220, performing binarization processing on the difference image; step 230, extracting target features from the difference image subjected to binarization processing; and step 240, counting the number of the articles according to the extracted target features.
The specific image processing unit is also configured to perform a plurality of modeling steps and a plurality of comparison steps, wherein the modeling steps are as follows: collecting an image, selecting a target area from the collected image, carrying out background modeling on the target area, and storing a background model; the comparison steps are as follows: and acquiring an image, selecting a target area in the acquired image, and comparing the target area with the background model stored in the last modeling step to generate a difference map.
The number of the multiple modeling steps and the multiple comparison steps is judged by the difference value of two images, referring to fig. 3, the method is described by taking the logistics industry as an example, taking the express mail passing through the square appearance for the first time and the round express mail passing through the round express mail for the second time, the square express mail is transmitted on the transmission device, the image is collected by the counting device, then the region of interest a is collected, taking the transmission device as the transmission belt, the region of interest can be the region of the transmission belt, and certainly the region of interest must include the region where the express mail is located. And carrying out background modeling on the square express in the region of interest, generating a background model 11 and storing the background model. And after the round express passes through the round express for the second time, firstly acquiring an image and then acquiring an interested area B by the same method, performing background modeling 1 on the round express, generating a background model 12 and storing the background model, wherein in addition, compared with the background model 11 of the last square express, the acquired interested area B of the round express has a difference value with the square, so that the fact that a new express passes through can be judged. Of course, when the square express is the first express to count, the collected image can be compared with the default background modeling, and the default background can be the background when no express passes through, so that the express can be counted even if the first express passes through.
Of course, the above counting process is only a simple description, and the above simple operation is not in practical application, but the above description is only a schematic description for the purpose of easy understanding. The square and the circle are also exemplified to show the difference.
In order to ensure the quality of image acquisition, the counting device further comprises a light shield and a light source, wherein the light shield is arranged above the conveying device, and a flexible light shield is arranged in the direction parallel to the conveying direction of the objects; and a camera and the light source are disposed within the light shield and toward the conveyor. The window shade is used for preventing objects from being blocked by the window shade during transmission, and the objects can be directly conveyed out of the window shade without being blocked.
In an alternative embodiment, the article transport assist system further comprises a display device in communication with the control device for displaying at least article transport information, the article transport information including at least one of: total number of items to be transferred in the time period; a total number of items transferred during the time period; real-time efficiency of article delivery; performance scoring of the item transfer; standard transmission efficiency; real-time efficiency of article transfer and average rate of article transfer over a time period; statistical information of real-time efficiency; image information of the article.
Several functions of the control device are exemplified below.
The control device generates real-time efficiency of article transmission according to the counting number and the counting time, and improves the article transmission efficiency when the real-time efficiency is lower than the standard efficiency; when the real-time efficiency is higher than the standard efficiency, the transfer efficiency of the article is lowered. I.e. to control the transmission efficiency.
Wherein the real-time efficiency of the article is:
wherein M1 is the first counting number, M2 is the second counting number, T1 is the first counting time, and T2 is the second counting time. Of course, the statistical efficiency may be set at fixed intervals, i.e., T2-T1 are fixed values. Of course, the above is an alternative calculation method, the accuracy of the result is related to the interval time, and the ratio of the number of the transported crotch articles to the time in a period of time can be considered as the real-time efficiency.
The standard efficiency is a range value, and when the real-time efficiency is lower than the lowest value of the standard efficiency and the real-time efficiency is higher than the highest value of the standard efficiency, the alarm device sends alarm information.
When the efficiency is lower than the standard efficiency, the control device needs to improve the conveying efficiency, namely more articles are put on the conveying device. Of course, in other embodiments, the conveying speed of the conveyor belt may be increased; when the efficiency is higher than the standard efficiency, the control device needs to reduce the conveying efficiency, namely, less articles are placed on the conveying device, or the conveying speed of the conveyor belt can be reduced.
Generally, in an article transfer center, a plurality of conveying devices may be arranged together, and if the real-time efficiency is too high, the articles may be stacked. Specifically, the change of the conveying efficiency or the change of the conveying speed of the conveying device can be determined according to actual conditions.
Of course, the specific control mode can be various, for example, the speed of the conveyor belt can be directly changed, or prompt information can be sent to remind workers of changing the operation manually.
While the function of the control device has been described above, in another embodiment, the control device further has a second function and can implement a performance scoring function.
Acquiring the counting number and the counting time of the counting device, and performing performance scoring on the article transmission, wherein the performance scoring comprises the following steps:
wherein A1 and A2 are weighted values, and the value range is 0-1; va is the average real-time efficiency from the start of the operation; vs is standard efficiency and Vd is deviation efficiency.
The deviation speed may be a difference between the current real-time efficiency and the average real-time efficiency. The weighting value may be set based on the emphasis point, for example, in the performance score middle test, if more emphasis is placed on the standard efficiency, the value of a1 is increased to be greater than 0.5, and may be generally 0.7-0.9. If the stability in overall operation in the test is compared, A2 is increased. In general, in order to provide a weight value with an adjustment function, a1+ a2 is defined as 1, in addition to a1 and a2 being weight values and having a value range of 0 to 1.
In order to make the performance score more accurate, it can be modified in the following way:
when in use
When less than 0, correct
Equal to 0;
when in use
When less than 0, correct
Equal to 0.
And when the transmission performance score is lower than the standard score, the alarm device sends alarm information.
Of course, in order to complete the above calculation process, the control device further includes a calculation part for completing the above calculation and generating a calculation result, which may include a comparison result according to real-time efficiency or a result of performance scoring. The control device controls the transmission efficiency according to the comparison result of the time efficiency, controls whether to give an alarm according to the grading result, and the like. The above is a description of the article carrying auxiliary system of the present invention, by which the carrying efficiency can be known, and the carrying efficiency can be changed by the carrying efficiency, so that the carrying of the article can be brought to an optimum efficiency state.
In another aspect, the present invention also provides an article transfer assisting method, which may be applied corresponding to the above system. The method comprises the following steps: counting the number of articles on the conveyor; and controlling the conveying efficiency of the articles according to the counting amount and the counting time; the conveying efficiency is the efficiency with which articles are placed onto the conveyor; counting the number of items on the conveyor includes: capturing image information of an item on the conveyor with a camera; and counting the number of items according to image information captured by the camera. The counting the number of items according to the image information includes: determining a difference image according to the current image and the background image; carrying out binarization processing on the difference image; extracting target features from the difference image subjected to binarization processing; and counting the number of items according to the extracted target features. Counting the number of articles according to the image information is divided into a plurality of modeling steps and a plurality of comparison steps, wherein,
the modeling steps are as follows: collecting an image, selecting a target area from the collected image, carrying out background modeling on the target area, and storing a background model;
the comparison steps are as follows: and acquiring an image, selecting a target area in the acquired image, and comparing the target area with the background model stored in the last modeling step to generate a difference map.
Generating item transfer information based on the counted number and the counted time, the item transfer information including at least one of: total number of items to be transferred in the time period; real-time efficiency of article delivery; performance scoring of the item transfer; standard transmission efficiency; statistical information of real-time efficiency; and image information of the article.
Optionally, real-time efficiency of article conveying is generated according to the counting number and the counting time, and when the real-time efficiency is lower than the standard efficiency, the conveying efficiency of the articles is improved; when the real-time efficiency is higher than the standard efficiency, the conveying efficiency of the article is reduced.
Optionally, the standard efficiency is a range value; and/or when the real-time efficiency is lower than the lowest value of the standard efficiency and the real-time efficiency is higher than the highest value of the standard efficiency, alarm information is displayed.
Optionally, a performance score for the article is generated according to the counting amount and the counting time, wherein the performance score is:
wherein A1 and A2 are weighted values, and the value range is 0-1; va is the average real-time efficiency from the start of the operation; vs is standard efficiency and Vd is deviation efficiency.
When in use
When less than 0, correct
Equal to 0;
when in use
When less than 0, correct
Equal to 0.
And when the transmission performance score is lower than the standard score, alarm information is displayed.
In yet another aspect, the present invention also discloses an article transfer aid, as shown in fig. 4, comprising a transfer device 31, a counting device and a calculating device, wherein the transfer device is used for transferring a transferred article 4, as also shown in fig. 4; a counting device for counting the number of the articles on the conveying device; and the calculating device is used for acquiring the counting number and the counting time of the counting device and generating article transmission information.
Optionally, the article transmission information includes: at least one of real-time efficiency of delivery of the item and performance scoring of the delivery of the dispatch.
Optionally, the article transportation assisting device of the present invention further includes a display device 32, configured to display the article transportation information and/or the article basic information, where the article basic information includes: at least one of total number of articles to be conveyed in the time period, standard conveying efficiency, statistical information of real-time efficiency and image information of the articles.
Optionally, the counting device is an image counting device, and includes an image collector and a processor, where the image collector is disposed above the conveying device and is used for capturing image information of the articles on the conveying device; the image processing unit is used for counting the number of the articles according to the image information captured by the image collector.
Optionally, the image counting device further comprises a light shield 33 and a light source, wherein the light shield is arranged above the conveying device, and a flexible light shield 34 is arranged on the light shield in a direction parallel to the conveying direction of the articles; the image collector and the light source are arranged in the light shield and face the conveying device.
The conveying device is a conveying belt, the light shield covers are arranged on the conveying belt, and flexible light shields are arranged in the direction parallel to the conveying direction of the objects, so that the objects enter the light shield from one side of the light shield, and leave the light shield from the other side of the light shield after being counted by the counting device.
And a screen is arranged outside the light shield and used for displaying the object images in the light shield. The screen also displays item transfer information.
The equipment of the invention also comprises a bracket 35 which is arranged on two sides of the conveying device in a spanning mode and is used for supporting the conveying surface of the conveying device, the counting device and the calculating device are arranged on the bracket, and the display device can also be arranged, and the display device can be an L ED screen shown in figure 4.
A communication device, configured to send the item transmission information and/or item basic information to a client, where the item transmission information includes: at least one item of basic information of the item, which is at least one item of real-time efficiency of item transmission and performance score of item transmission, comprises: at least one of total number of articles to be conveyed in the time period, standard conveying efficiency, statistical information of real-time efficiency and image information of the articles.
In order to enable the device to realize the control function, the device can also be provided with a control device.
In addition, the device should also have an input device 36 for manually inputting relevant information, as shown in fig. 4, which may be a keyboard, a touch screen, etc., and for an operator to input control information, such as manually controlling the conveying speed, etc. Of course, the on/off operation can also be controlled by the input device 36.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. An article transfer assist system, comprising:
a conveyor for conveying articles;
a counting device for counting the number of the articles on the conveying device; and
control means for acquiring the counted number and the counted time of the counting means and thereby controlling the conveying efficiency of the article;
the counting device comprises a camera and an image processing unit,
the camera is arranged above the conveying device and used for capturing image information of the object on the conveying device;
the image processing unit is used for counting the number of the articles according to the image information captured by the camera;
the control device is also used for acquiring the counting number and the counting time of the counting device and scoring the performance of the article transmission, wherein the performance scoring comprises the following steps:
wherein A1 and A2 are weighted values, and the value range is 0-1;
va is the average real-time efficiency from the start of the operation;
vs is standard efficiency and Vd is deviation efficiency;
when in use
When less than 0, correct
Equal to 0;
when in use
When less than 0, correct
Equal to 0.
2. The article transport assist system of claim 1,
the image processing unit is configured to count the number of items by:
determining a difference image according to the current image and the background image;
carrying out binarization processing on the difference image;
extracting target features from the difference image subjected to binarization processing; and
and counting the number of the articles according to the extracted target features.
3. The article transport assist system of claim 2,
the image processing unit is further configured to perform a plurality of modeling steps and a plurality of comparison steps, wherein,
the modeling steps are as follows: collecting an image, selecting a target area from the collected image, carrying out background modeling on the target area, and storing a background model;
the comparison steps are as follows: and acquiring an image, selecting a target area in the acquired image, and comparing the target area with the background model stored in the last modeling step to generate a difference map.
4. The article transport assist system of claim 1,
the counting device also comprises a light shield and a light source,
the light shield is arranged above the conveying device,
the light shield is provided with a flexible light shield curtain in the direction parallel to the conveying direction of the articles; and is
The camera and the light source are disposed within the light shield and directed toward the conveyor.
5. The article transport assist system of claim 1,
further comprising a display device in communication with the control device for displaying at least item transfer information, the item transfer information comprising at least one of:
total number of items to be transferred in the time period;
a total number of items transferred during the time period;
real-time efficiency of article delivery;
performance scoring of the item transfer;
standard transmission efficiency;
real-time efficiency of article transfer and average rate of article transfer over a time period;
statistical information of real-time efficiency;
image information of the article;
wherein the real-time efficiency is obtained by a ratio of the number and the counting time.
6. The article transfer assist system according to any one of claims 1 to 5,
the control device generates an article transport real-time efficiency from the count and the count time,
when the real-time efficiency is lower than the standard efficiency, the conveying efficiency of the articles is improved;
when the real-time efficiency is higher than the standard efficiency, the conveying efficiency of the article is reduced.
7. The article transport assistance system of claim 6,
the standard efficiency is a range value, when the real-time efficiency is lower than the lowest value of the standard efficiency and the real-time efficiency is higher than the highest value of the standard efficiency, the alarm device sends alarm information.
8. The article transfer assist system according to any one of claims 1 to 5,
and when the transmission performance score is lower than the standard score, the alarm device sends alarm information.
9. The article transfer assist system according to any one of claims 1 to 5,
the control means also generates an item transfer real-time efficiency from the count and the count time,
when the real-time efficiency is lower than the standard efficiency, the conveying efficiency of the conveying device for the articles is improved;
when the real-time efficiency is higher than the standard efficiency, the conveying efficiency of the conveying device of the article is reduced.
10. The article transfer assist system according to any one of claims 1 to 5,
the control device is provided with a calculating part, the calculating part acquires the counting number and the counting time of the counting device, calculates the real-time efficiency, compares the real-time efficiency with the standard efficiency to form a comparison result, and controls the conveying efficiency of the articles according to the comparison result; alternatively, the first and second electrodes may be,
the calculating section further calculates a performance score.
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| DE102019118046A1 (en) * | 2019-07-04 | 2021-01-07 | Hänel & Co. | Storage rack for storing at least one storage goods carrier and method for detecting the inventory of a storage rack |
| CN112191537A (en) * | 2020-10-20 | 2021-01-08 | 戴昊霖 | Logistics package sorting system based on artificial intelligence |
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| CN101027236A (en) * | 2004-06-21 | 2007-08-29 | 西门子共同研究公司 | High-rate space efficient article singulator |
| CN202897462U (en) * | 2012-11-05 | 2013-04-24 | 江苏顺远纺织科技有限公司 | Novel product counting device |
| CN203095056U (en) * | 2012-12-29 | 2013-07-31 | 肇庆理士电源技术有限公司 | Plate collecting equipment |
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