CN111487255A - Defective label positioning method and device - Google Patents
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Abstract
The invention provides a method and a device for positioning a defective label, which relate to the technical field of labels and are characterized in that real-time distance information between the defective label and a target stop position is obtained; according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information; and adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed. The defective label is accurately positioned and stopped, so that the defective label is accurately stopped at the target position. The real flaw of judgement that inspection personnel can be clear is on which label, is difficult to cause the false retrieval or miss the inspection.
Description
Technical Field
The invention relates to a label detection technology, in particular to a method and a device for positioning a defective label.
Background
The label is used for marking the product target and classification or content, and giving the target the determined key words, thereby being convenient for searching and positioning the target required by the label. Thus, the quality of the label is acceptable or not, which affects subsequent use of the product.
In the prior art, a label detection system is composed of a running mechanism, a control system, an imaging system, a detection system and the like, wherein the running mechanism is responsible for driving a label to run, the control system is responsible for starting and stopping the control mechanism, the imaging system is responsible for photographing the label and transmitting an image, the detection system is responsible for analyzing and judging the image, and all the systems need to run in a coordinated manner to finally meet the business requirement of label detection by a machine instead of naked eyes.
However, after detecting the flaw label among the prior art, can't reach the shut down precision of demand, lead to the flaw label to surpass workstation central point easily and put, detection personnel can't judge on which label of real flaw, easy false retrieval or miss-detection.
Disclosure of Invention
The embodiment of the invention provides a defective label positioning method and a defective label positioning device, which can improve the stop precision of a defective label and enable the defective label to accurately stop at a target position.
In a first aspect of the embodiments of the present invention, a method for positioning a defective label is provided, including:
acquiring real-time distance information between a defective label and a target stop position;
according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information;
and adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed.
Optionally, in a possible implementation manner of the first aspect, the sequentially obtaining the first braking information, the second braking information, and the shutdown information according to the real-time distance information includes:
if the real-time distance information is larger than a first braking distance and smaller than a second braking distance, acquiring the first braking information;
if the real-time distance information is larger than 0 and smaller than a first braking distance, acquiring second braking information;
if the real-time distance information is 0, acquiring the shutdown information;
and the first braking distance is smaller than the second braking distance.
Optionally, in a possible implementation manner of the first aspect, the acquiring real-time distance information between the defective label and the target stop position includes:
acquiring the flaw label closest to the target stop position;
and acquiring real-time distance information between the defective label and a target stop position.
Optionally, in a possible implementation manner of the first aspect, the method further includes:
if the real-time distance information is larger than the second braking distance, acquiring initial speed information;
and adjusting the transmission speed of the defective label to an initial speed according to the initial speed information, wherein the initial speed is greater than the first speed.
Optionally, in a possible implementation manner of the first aspect, before the acquiring the real-time distance information between the defective label and the target stop position, the method further includes:
acquiring picture information of a label to be detected;
and comparing the picture information according to preset comparison information to obtain the flaw label.
Optionally, in a possible implementation manner of the first aspect, the method further includes:
acquiring a label signal of a label to be detected;
and performing label processing on the label to be detected according to the label signal to acquire label information corresponding to the label to be detected.
Optionally, in a possible implementation manner of the first aspect, the method further includes:
the method comprises the steps of obtaining position information of a label to be detected, wherein the position information is distance information between the label to be detected and the label to be detected with the label number of 1.
Optionally, in a possible implementation manner of the first aspect, the method further includes:
and displaying the label information and the position information of the label to be detected.
In a second aspect of the embodiments of the present invention, there is provided a defective label positioning apparatus, including:
the distance module is used for acquiring real-time distance information between the defective label and the target stop position;
the control module is used for sequentially acquiring first brake information, second brake information and shutdown information according to the real-time distance information;
and the stopping module is used for adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stopping information, wherein the first speed is greater than the second speed.
In a third aspect of the embodiments of the present invention, there is provided a defective label positioning apparatus, including: memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the method of the first aspect of the invention as well as various possible aspects of the first aspect.
A fourth aspect of the embodiments of the present invention provides a readable storage medium, in which a computer program is stored, the computer program being, when executed by a processor, configured to implement the method according to the first aspect of the present invention and various possible aspects of the first aspect.
The invention provides a method and a device for positioning a defective label, which are characterized in that real-time distance information between the defective label and a target stop position is obtained; according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information; and adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed. The defective label is accurately positioned and stopped, so that the defective label is accurately stopped at the target position. The real flaw of judgement that inspection personnel can be clear is on which label, is difficult to cause the false retrieval or miss the inspection.
Drawings
FIG. 1 is a schematic structural diagram of a defective label detection system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for locating a defective label according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating another defective label locating method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a defective label positioning device according to an embodiment of the present invention;
fig. 5 is a schematic hardware structure diagram of a defective label positioning apparatus according to an embodiment of the present invention.
Reference numerals:
101. detecting a label to be detected; 102. an unwinding unit; 103. a winding unit; 104. a detection unit;
105. a target stop position.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 1, a schematic structural diagram of a defective label detecting system according to an embodiment of the present invention is shown, wherein a label 101 to be detected is transmitted along with transmission of an unwinding unit 102 and a winding unit 103, and the label 101 to be detected sequentially passes through a detecting unit 104 and a target stop position 105.
It is to be understood that the detection unit 104 may be a unit that detects whether a label is a defective label, and the target stop location 105 is a location where a worker can view the defective label.
Referring to fig. 2, which is a flowchart illustrating a method for locating a defective label according to an embodiment of the present invention, an execution main body of the method shown in fig. 2 may be a software and/or hardware device. The execution subject of the present application may include, but is not limited to, at least one of: user equipment, network equipment, etc. The user equipment may include, but is not limited to, a computer, a smart phone, a Personal Digital Assistant (PDA), the above mentioned electronic equipment, and the like. The network device may include, but is not limited to, a single network server, a server group of multiple network servers, or a cloud of numerous computers or network servers based on cloud computing, wherein cloud computing is one type of distributed computing, a super virtual computer consisting of a cluster of loosely coupled computers. The present embodiment does not limit this. The method for positioning the defective label comprises steps S201 to S203, and specifically comprises the following steps:
s201, acquiring real-time distance information between the defective label and the target stop position.
Specifically, the target stop position is the position where the worker can observe the defective label, and it can be understood that when all the defective labels stay at the target stop position, the worker can further check the detected defective label to judge whether the label is a real defective label. Because the position of the defective label can be changed continuously under the driving of the unreeling unit and the reeling unit, the real-time distance information is the real-time distance between the defective label and the target stop position.
S202, according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information.
Specifically, the scheme utilizes the judgment of the real-time distance information to sequentially generate the first brake information, the second brake information and the stop information, and then utilizes the first brake information, the second brake information and the stop information to realize multiple times of speed reduction operation on the defective label until the defective label is stopped.
It can be understood that in the actual detection process, the transmission speed of the to-be-detected label is high, and after the defective label is detected, the to-be-detected label is fast (the operation speed of the quality inspection machine is generally required to be 10 m/min-150 m/min), and the defective label cannot be accurately stopped at the target position due to reasons such as inertia. According to the scheme, the real-time distance is judged, multiple times of braking is adopted, the automobile can be stopped accurately in a limited buffer stroke when a flaw label is detected, and the front deviation and the rear deviation are not more than +/-1 cm. Can automatic accurate shut down to the target promptly, detection personnel can directly judge out the flaw label at the target location.
Wherein, according to real-time distance information, acquire first brake information, second brake information and shutdown information in proper order, include:
if the real-time distance information is larger than a first braking distance and smaller than a second braking distance, acquiring the first braking information; if the real-time distance information is larger than 0 and smaller than a first braking distance, acquiring second braking information; if the real-time distance information is 0, acquiring the shutdown information; and the first braking distance is smaller than the second braking distance. For example, the first braking distance is 5 meters and the second braking distance is 10 meters.
Illustratively, if the first braking distance is 5 meters, the second braking distance is 10 meters, and the real-time distance information is 8 meters, the real-time distance information is greater than the first braking distance and less than the second braking distance, and the first braking information is acquired.
For another example, if the first braking distance is 5 meters, the second braking distance is 10 meters, and the real-time distance information is 3 meters, the real-time distance information is greater than 0 and smaller than the first braking distance, and the second braking information is acquired.
As another example, if the first braking distance is 5 meters, the second braking distance is 10 meters, and the real-time distance information is 0 meter, the real-time distance information is 0, and the shutdown information is obtained.
S203, adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed.
Specifically, the speed reduction is performed once when the first brake information is acquired, the speed reduction is performed once when the second brake information is acquired, and after the stop information is acquired, the defective label is in a pause state, that is, the stop operation is finally realized, and the defective label is accurately stopped at the target position at the moment.
The brake may be that the system described in fig. 1 controls the unwinding unit 102 and/or the winding unit 103 to decelerate or stop after obtaining the corresponding signal, so as to control deceleration or stop of the defective label.
It will be appreciated that the first speed is greater than said second speed, i.e. the speed after the second braking is less than the speed after the first braking, e.g. the first speed is 8 m/min and the second speed is 3 m/min. When the speed is 0, the state is described as being stopped.
In the method for positioning the defective label provided by the embodiment, the real-time distance information between the defective label and the target stop position is acquired; according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information; and adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed. The defective label is accurately positioned and stopped, so that the defective label is accurately stopped at the target position. The real flaw of judgement that inspection personnel can be clear is on which label, is difficult to cause the false retrieval or miss the inspection.
In practical applications, before the obtaining the real-time distance information between the defective label and the target stop position, the method further includes:
and acquiring picture information of the label to be detected, and comparing the picture information according to preset comparison information to acquire the defective label.
Specifically, the detection of the tag to be detected can be performed by taking a picture to obtain picture information to be detected, and then the picture information is compared with preset comparison information, if the comparison information is inconsistent, the tag to be detected can be determined to be a defective tag, and if the comparison information is consistent, the tag to be detected is a qualified tag.
In some embodiments, in order to obtain information of the tag more clearly for the staff, the tag may be labeled, the real-time position of the tag may be obtained, and then the label is displayed to the staff, specifically as follows:
label the label:
acquiring a label signal of a label to be detected, performing label processing on the label to be detected according to the label signal, and acquiring label information corresponding to the label to be detected.
Specifically, labels are marked on the labels to be detected, and after the defective labels are detected, the staff can know that the labels are the defective labels. For example, when the fifth label is detected to be a defective label, the worker can know that the label No. 5 is a defective label.
Here, since there is a gap between the two tags, the label signal may be generated by using the gap optical transparency, and for example, the label signal may be generated by using the gap optical transparency by using an optical coupler sensor. That is, when the opto-coupler sensor detects the passage of a label, a label signal is generated.
Acquiring the real-time position of the tag:
the method comprises the steps of obtaining position information of a label to be detected, wherein the position information is distance information between the label to be detected and the label to be detected with the label number of 1.
Specifically, assuming that the width of the space between the labels is 3.5cm, when the No. 1 label passes through the optocoupler, the position information of the No. 1 label is 0; when the No. 2 label passes through the optocoupler, the position information of the No. 2 label is 3.5 cm; when the No. 3 label passes through the optocoupler, the position information of the No. 3 label is 7.0 cm.
Positions and reference numbers are shown:
and displaying the label information and the position information of the label to be detected.
In practical applications, a plurality of defective labels may be detected simultaneously, so that the present disclosure provides a scheme related to detecting a plurality of defective labels simultaneously on the basis of the above embodiment, and refer to fig. 3, which is a schematic flow chart of another defective label positioning method provided by the embodiment of the present disclosure, where the defective label positioning method includes steps S301 to S303, and specifically includes the following steps:
s301, acquiring the flaw label closest to the target stop position, and acquiring real-time distance information between the flaw label and the target stop position.
Specifically, when there are a plurality of defective labels, the defective label closest to the target stop position is selected for judgment, and the final result is not affected by other defective labels.
And S302, sequentially acquiring first brake information, second brake information and stop information according to the real-time distance information.
And S303, adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed.
In this embodiment, steps S302 and S303 are the same as steps S202 and S203 in the embodiment described in fig. 1, and the implementation principle and technical effect are similar, and are not described herein again.
On the basis of the embodiment, if the real-time distance information is greater than the second braking distance, acquiring initial speed information; and adjusting the transmission speed of the defective label to an initial speed according to the initial speed information, wherein the initial speed is greater than the first speed.
It can be understood that when the real-time distance information is greater than the second braking distance, the distance from the target position is far, the speed reduction operation is not needed, and the vehicle can run at normal speed.
Referring to fig. 4, a schematic structural diagram of a defective label positioning apparatus according to an embodiment of the present invention is shown, where the defective label positioning apparatus 40 includes:
a distance module 41, configured to obtain real-time distance information between a defective label and a target stop position;
the control module 42 is used for sequentially acquiring first brake information, second brake information and shutdown information according to the real-time distance information;
and a stopping module 43, configured to adjust the transmission speed of the defective label to a first speed, a second speed, and 0 in sequence according to the first brake information, the second brake information, and the stopping information, where the first speed is greater than the second speed.
The terminal in the embodiment shown in fig. 4 can be correspondingly used to execute the steps in the method embodiment shown in fig. 2, and the implementation principle and technical effect are similar, which are not described herein again.
Referring to fig. 5, which is a schematic diagram of a hardware structure of a defective label positioning apparatus according to an embodiment of the present invention, the defective label positioning apparatus 50 includes: a processor 51, a memory 52 and computer programs; wherein
A memory 52 for storing the computer program, which may also be a flash memory (flash). The computer program is, for example, an application program, a functional module, or the like that implements the above method.
A processor 51 for executing the computer program stored in the memory to implement the steps performed by the apparatus in the above method. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 52 may be separate or integrated with the processor 51.
When the memory 52 is a device independent of the processor 51, the terminal may further include:
a bus 53 for connecting the memory 52 and the processor 51.
The present invention also provides a readable storage medium, in which a computer program is stored, which, when being executed by a processor, is adapted to implement the methods provided by the various embodiments described above.
The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Additionally, the ASIC may reside in user equipment. Of course, the processor and the readable storage medium may also reside as discrete components in a communication device. The readable storage medium may be a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The present invention also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the execution instructions from the readable storage medium, and the execution of the execution instructions by the at least one processor causes the device to implement the methods provided by the various embodiments described above.
In the above embodiments of the apparatus, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for locating a defective label, comprising:
acquiring real-time distance information between a defective label and a target stop position;
according to the real-time distance information, sequentially acquiring first brake information, second brake information and stop information;
and adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stop information, wherein the first speed is greater than the second speed.
2. The method of claim 1, wherein the sequentially obtaining the first braking information, the second braking information and the shutdown information according to the real-time distance information comprises:
if the real-time distance information is larger than a first braking distance and smaller than a second braking distance, acquiring the first braking information;
if the real-time distance information is larger than 0 and smaller than a first braking distance, acquiring second braking information;
if the real-time distance information is 0, acquiring the shutdown information;
and the first braking distance is smaller than the second braking distance.
3. The method of claim 1 or 2, wherein said obtaining real-time distance information between a defective label and a target stop location comprises:
acquiring the flaw label closest to the target stop position;
and acquiring real-time distance information between the defective label and a target stop position.
4. The method of claim 3, further comprising:
if the real-time distance information is larger than the second braking distance, acquiring initial speed information;
and adjusting the transmission speed of the defective label to an initial speed according to the initial speed information, wherein the initial speed is greater than the first speed.
5. The method of claim 1, further comprising, prior to said obtaining real-time distance information between a defective label and a target stop location:
acquiring picture information of a label to be detected;
and comparing the picture information according to preset comparison information to obtain the flaw label.
6. The method of claim 1, further comprising:
acquiring a label signal of a label to be detected;
and performing label processing on the label to be detected according to the label signal to acquire label information corresponding to the label to be detected.
7. The method of claim 6, further comprising:
the method comprises the steps of obtaining position information of a label to be detected, wherein the position information is distance information between the label to be detected and the label to be detected with the label number of 1.
8. The method of claim 7, further comprising:
and displaying the label information and the position information of the label to be detected.
9. A defective label positioning device, comprising:
the distance module is used for acquiring real-time distance information between the defective label and the target stop position;
the control module is used for sequentially acquiring first brake information, second brake information and shutdown information according to the real-time distance information;
and the stopping module is used for adjusting the transmission speed of the defective label to a first speed, a second speed and 0 in sequence according to the first brake information, the second brake information and the stopping information, wherein the first speed is greater than the second speed.
10. A readable storage medium, in which a computer program is stored which, when being executed by a processor, is adapted to carry out the method of any one of claims 1 to 8.
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| CN202010435091.7A CN111487255A (en) | 2020-05-21 | 2020-05-21 | Defective label positioning method and device |
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Citations (7)
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