CN115672796A - Zero missing mark visual detection method and device - Google Patents
Zero missing mark visual detection method and device Download PDFInfo
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- CN115672796A CN115672796A CN202211347713.6A CN202211347713A CN115672796A CN 115672796 A CN115672796 A CN 115672796A CN 202211347713 A CN202211347713 A CN 202211347713A CN 115672796 A CN115672796 A CN 115672796A
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Abstract
The invention discloses a zero-missing mark visual detection method and a device, wherein the method comprises the following steps: if the quality identification result of the current product to be detected is good, sending a good signal to the marking machine; if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine, and accumulating the current marking number; carrying out label missing detection on a current product to be detected; if the preset position of the current product to be detected is detected to have a label, label dropping detection is carried out on the current product to be detected; if the preset position of the current product to be detected is detected to have a label, accumulating the number of the current labels; judging whether the number of the current marked marks is consistent with the number of the current labels, if so, finishing the zero missing mark visual detection of the current product to be detected; the invention can effectively avoid missing detection, and judges the consistency of the current marking quantity and the current label quantity, so that the consistency judgment of the marking quantity and the current label quantity forms closed-loop interlocking, and the missing label is effectively avoided.
Description
Technical Field
The invention relates to the technical field of visual detection, in particular to a zero missing mark visual detection device and a zero missing mark visual detection method.
Background
The defective product control detection system is very widely and indispensably applied in industry, and by comparing the defective product control detection zero label leakage system method with the conventional method, it is summarized that the conventional control method has the following defects (the label paper is taken as a defective product label as an example in the following):
1. unity: for example, in a conventional defective product marking method, a corresponding sensor is used for identifying label paper (for example, label paper is manufactured by a labeling machine, an ink jet printer and other equipment), because the label paper has the risk of flying out and falling at the moment of high-speed adhesion, a label outlet of the labeling machine is close to a label missing detection sensor, a label is not firmly adhered, and the risk that a defective product is not marked and leaks out due to flying out of the label at an excessively high speed is avoided;
2. limitation: if heartbeat signals of a computer crash, a computer blue screen, upper computer software and a label machine exist, when the detection and identification system cannot output a target signal, detected materials or articles have moved forward, so that the undetected result of the detected object has the risk of missing detection;
3. poor reliability: if the conventional label sticking machine directly outputs the label missing alarm to stop the machine to conventionally stick the label paper, the consistency of the label output quantity and the detected label missing quantity is not compared, so that the counting cannot form a closed loop, and the reliability is poor.
Disclosure of Invention
The invention aims to provide a visual detection device and a visual detection method for zero label leakage, which utilize the principle of negative feedback to enable a marking machine to respond to marking when a good product signal is not received, thereby effectively avoiding the label leakage caused by the persistence of system signals such as dead halt, blue screen and heartbeat signal, and additionally arranging a label dropping detection link after the conventional label leakage detection, and judging the consistency of the current marking number and the current label number in the label dropping detection process, so that the consistency of the marking number and the current label number is judged to form closed-loop interlocking, thereby effectively avoiding the label leakage.
In order to achieve the purpose, the invention discloses a zero-missing-mark visual detection method, which comprises the following steps:
s1, identifying the quality of a current product to be detected, wherein the quality identification result comprises a good product and a defective product;
s2, if the quality identification result of the current product to be detected is good, sending a good signal to a marking machine;
s3, if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine so as to mark a label on the current product to be detected, and accumulating the current marking number;
s4, performing label missing detection on the current product to be detected;
s5, if the preset position of the current product to be detected is detected to have a label, label dropping detection is carried out on the current product to be detected;
s6, if the preset position of the current product to be detected is detected to have a label, accumulating the number of the current labels;
and S7, judging whether the number of the current marks is consistent with the number of the current labels, and if so, finishing the zero-missing-mark visual detection of the current product to be detected.
Preferably, the step S2 further comprises:
and if the marking machine cannot mark the current product to be detected, stopping the machine and sending a stopping mark supplementing request.
Preferably, the step S5 further includes:
and if the preset position of the current product to be detected does not have the label, stopping the machine and sending a request for stopping and supplementing the label.
Preferably, the step S7 further comprises:
if not, stopping the machine and sending a stopping mark supplement request.
Preferably, in step S3, the marking machine marks the current product to be detected to mark a label on the current product to be detected, and accumulates the current marking number, and specifically includes:
the marking machine marks the current product to be detected to form a label at the preset position of the current product to be detected, and the current marking quantity is accumulated.
Preferably, in step S5, the label dropping detection of the current product to be detected specifically includes:
tracking the label position of the current product to be detected through a position following algorithm;
and (4) performing label dropping detection on the current product to be detected.
Preferably, the missing mark detection is carried out on the current product to be detected at the position close to the rear side of the mark outlet of the marking machine.
Preferably, the label dropping detection is carried out on the current product to be detected at a preset distance position away from the rear side of the label outlet of the marking machine.
Preferably, the predetermined distance is between 0.8m and 1 m.
Correspondingly, the invention also discloses a zero missing mark visual detection device, which comprises a visual detection system, a marking machine, a missing mark detection system and a missing mark detection system, wherein,
the visual detection system is used for carrying out quality identification on the current product to be detected, the quality identification result comprises a good product and a defective product, and if the quality identification result of the current product to be detected is a good product, the visual detection system sends a good product signal to the marking machine;
if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine so as to mark a label on the current product to be detected, and accumulating the current marking number;
the label missing detection system is used for detecting the missing label of the current product to be detected, the label falling detection system is used for detecting the missing label of the current product to be detected, and if the label missing detection system detects that the preset position of the current product to be detected has a label, the label falling detection system carries out label falling detection on the current product to be detected;
and the label dropping detection system judges whether the current marking number is consistent with the current label number, and if so, the zero label dropping visual detection of the current product to be detected is finished.
Compared with the prior art, the invention improves marking response logic, specifically, a good product signal is sent to the marking machine only when the quality identification result of the current product to be detected is good, the marking machine makes marking response to mark the current product to be detected by utilizing the principle of negative feedback when not receiving the good product signal, and the missed detection caused by the system such as dead halt, blue screen and heartbeat signal retention is effectively avoided; on the other hand, a label dropping detection link is additionally arranged after the conventional label dropping detection, and the accumulated number of the current labels is determined in the label dropping detection process, so that the consistency between the current marking number and the current label number is determined, the closed-loop interlocking is formed by the consistency determination between the marking number and the current label number, and the label dropping is effectively avoided.
Drawings
FIG. 1 is a block flow diagram of a zero-missing-logo visual detection method of the present invention;
fig. 2 is a schematic structural diagram of the zero-missing-mark visual inspection device of the present invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the zero-missing-mark visual inspection method of the present embodiment is suitable for detecting and marking defective products of various types of products, where the types of the products include, but are not limited to, lithium battery pole pieces. The zero-missing mark visual detection method comprises the following steps:
s1, identifying the quality of the current product to be detected, wherein the quality identification result comprises a good product and a defective product.
It can be understood that, the zero-missing-mark visual detection of the embodiment detects the products to be detected one by one, and detects the next product to be detected after the detection of the current product to be detected is completed, so as to realize the automatic zero-missing-mark visual detection.
The specific device for implementing quality identification in this embodiment is a visual inspection system, which performs real-time quality identification by acquiring image information of a product to be inspected. Of course, in other embodiments, the quality identification may also be performed by using ultrasonic waves, X-rays, and the like, and the specific manner of the quality identification is selected according to actual product requirements, which is not limited in this time.
And S2, if the quality identification result of the current product to be detected is good, sending a good signal to the marking machine.
It can be understood that if the quality identification result of the current product to be detected is a defective product, a specific signal does not need to be sent to the marking machine. Different from the signal output type of the traditional label missing detection, the embodiment utilizes a negative feedback principle (reverse logic), when the quality identification result is a good product, a good product signal is sent to the marking machine, and when the marking machine does not receive the good product signal, the marking machine defaults that the product to be detected is a defective product currently, so that the problem that the defective product is mixed into the good product due to the abnormal visual detection system or the dead halt of hardware is avoided.
Preferably, the step S2 further comprises:
if the marking machine cannot mark the current product to be detected, stopping the machine and sending a stopping mark supplementing request.
It can be understood that, when the marking machine cannot mark the current product to be detected due to reasons such as abnormal marking or label blockage, the embodiment stops the marking machine and sends a request for stopping and mark supplement to request human intervention, check the function of the marking machine and detect the manual mark missing of the current product to be detected. After the marking machine is confirmed to be normal, the embodiment will check the next product to be detected.
And S3, if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine so as to mark a label on the current product to be detected, and accumulating the current marking quantity.
It can be understood that the initial number of the marking number can be set according to actual requirements, and correspondingly, the initial number of the subsequent label number needs to be the same as the initial number of the marking number.
Preferably, the marking mode is to form a label at a preset position of the product to be detected currently, and to accumulate the current marking number, where the label includes, but is not limited to, two-dimensional codes, bar codes, and the like. The preset position is understood to be the designated position of the product to be detected, and the marking positions of the same type of product to be detected are identical.
And S4, carrying out label missing detection on the current product to be detected.
It can be understood that, in the embodiment, the missing label detection is performed on the product to be detected by the missing label detection system. Preferably, the product to be detected is subjected to label missing detection at a position close to the rear side of a label outlet of the marking machine, so that the product to be detected can be identified immediately by a label missing detection system after marking. The label missing detection system comprises a sensor and a counter, wherein the sensor is used for carrying out label identification, and the counter is used for counting.
And S5, if the preset position of the current product to be detected is detected to have the label, label falling detection is carried out on the current product to be detected.
It can be understood that, in the embodiment, the label dropping detection is performed on the product to be detected through the label dropping detection system. Preferably, the label dropping detection is carried out on the current product to be detected at a preset distance position away from the rear side of the label outlet of the marking machine. Preferably, the predetermined distance is between 0.8m and 1 m. The distance is predetermine at the distance interval between the detection of leaking mark detection and the label that falls of this embodiment to the product that detects after making the leaking mark detect is from leaking the mark detection station transmission to the in-process that falls the mark detection station, makes to beat the mark insecure label and drops naturally, perhaps blows away through forms such as fan is bloied effectively will beat the mark insecure label, avoids because of transmission speed reason, label insecure and in subsequent leading to the defective products to sneak into the yields because of the label drops. The label-dropping detection system comprises a sensor and a counter, wherein the sensor is used for carrying out label identification, and the counter is used for counting.
Preferably, the step S5 further includes:
and if the preset position of the current product to be detected does not have the label, stopping the machine and sending a request for stopping and supplementing the label.
It can be understood that if it is detected that the preset position of the current product to be detected does not have a label, it may be that the marking of the marking machine fails, the label drops after marking or the marking position is abnormal, and at this time, the present embodiment may stop and send a stop mark supplement request to request human intervention, perform manual label missing detection on the current product to be detected, and check the next product to be detected.
Further, in step S5, the label dropping detection of the current product to be detected specifically includes:
tracking the label position of the current product to be detected through a position following algorithm, thereby efficiently positioning the label;
and (4) performing label dropping detection on the current product to be detected.
And S6, if the preset position of the current product to be detected is detected to have the label, accumulating the number of the current labels.
And S7, judging whether the number of the current marks is consistent with the number of the current labels, and if so, finishing the zero-missing-mark visual detection of the current product to be detected.
It can be understood that when the current marking number is consistent with the current label number, namely the consistency judgment of the current marking number and the current label number forms closed-loop interlocking judgment, the marking number and the label detection number are both in accordance with counting statistics, and therefore label missing is determined not to occur.
Preferably, the step S7 further comprises:
if not, stopping the machine and sending a stopping mark supplement request.
It can be understood that if the number of the previous marking is inconsistent with the number of the current labels, it can be judged that an error exists in the label removal detection step, at this moment, the present embodiment can stop, and a stop label supplement request is sent out, so as to request human intervention, to perform manual label missing detection on the current product to be detected, and to check the next product to be detected.
Referring to fig. 2, the zero-missing-mark visual inspection apparatus of the present embodiment includes a visual inspection system 10, a marking machine 20, a missing-mark inspection system 30, and a missing-mark inspection system 40, wherein,
the visual detection system 10 is configured to perform quality identification on a current product to be detected, where the quality identification result includes a good product and a bad product, and if the quality identification result of the current product to be detected is a good product, the visual detection system 10 sends a good product signal to the marking machine 20;
if the marking machine 20 does not receive a good product signal, the marking machine 20 marks the current product to be detected, so as to mark a label on the current product to be detected, and accumulate the current marking number;
the missing label detection system 30 is used for detecting the missing label of the current product to be detected, the missing label detection system 40 is used for detecting the missing label of the current product to be detected, and if the missing label detection system 30 detects that the preset position of the current product to be detected has a label, the missing label detection system 40 performs the missing label detection on the current product to be detected;
and the label dropping detection system 40 judges whether the current marking number is consistent with the current label number, and if so, finishes the zero label dropping visual detection of the current product to be detected.
With reference to fig. 1 and 2, on one hand, the marking response logic is improved, specifically, a good product signal is sent to the marking machine 20 only when the quality identification result of the current product to be detected is good, and the marking machine 20 makes a marking response to mark the current product to be detected only when the good product signal is not received by using the principle of negative feedback, so that missing detection caused by system crash, blue screen, and heartbeat signal persistence is effectively avoided; on the other hand, the label dropping detection link is additionally arranged after the conventional label dropping detection, and the accumulated number of the current labels is determined in the label dropping detection process, so that the consistency between the current marking number and the current label number is determined, the closed-loop interlocking is formed by the consistency between the marking number and the current label number, the label dropping is effectively avoided, and the defects of singleness, limitation, poor interlocking type and the like of the detection link in the prior art are overcome.
The above disclosure is only for the preferred embodiment of the present invention, and it should be understood that the present invention is not limited thereto, and the invention is not limited to the above disclosure.
Claims (10)
1. A visual detection method for zero missing marks is characterized by comprising the following steps:
identifying the quality of the current product to be detected, wherein the quality identification result comprises a good product and a defective product;
if the quality identification result of the current product to be detected is good, sending a good signal to the marking machine;
if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine so as to mark a label on the current product to be detected, and accumulating the current marking number;
carrying out label missing detection on a current product to be detected;
if the preset position of the current product to be detected is detected to have a label, label dropping detection is carried out on the current product to be detected;
if the preset position of the current product to be detected is detected to have a label, accumulating the number of the current labels;
and judging whether the current marking number is consistent with the current label number, and if so, finishing the zero missing label visual detection of the current product to be detected.
2. The method for visually inspecting a product with zero missing marks as claimed in claim 1, wherein if the marking machine does not receive a good product signal, the marking machine marks the current product to be inspected to form a label at a predetermined position of the current product to be inspected, and accumulates the current marking number, further comprising:
and if the marking machine cannot mark the current product to be detected, stopping the machine and sending a stopping mark supplementing request.
3. The visual zero-missing-label detection method of claim 1, wherein if it is detected that the preset position of the current product to be detected has a label, the label dropping detection is performed on the current product to be detected, further comprising:
and if the preset position of the current product to be detected is detected to have no label, stopping the machine and sending a request for stopping and supplementing the label.
4. The method according to claim 1, wherein the step of determining whether the number of the current marks is consistent with the number of the current labels is performed, and if so, ending the zero-missing-mark visual inspection of the current product to be inspected further comprises the steps of:
if not, stopping the machine and sending a stopping mark supplement request.
5. The visual zero-missing-label detection method according to claim 1, wherein if the marking machine does not receive a good-product signal, the marking machine marks the current product to be detected to mark the current product to be detected and accumulates the current marking number, and the marking machine marks the current product to be detected to mark the current product to be detected and accumulates the current marking number, specifically comprising:
the marking machine marks the current product to be detected to form a label at the preset position of the current product to be detected, and the current marking quantity is accumulated.
6. The visual zero-missing-label detection method according to claim 1, wherein if it is detected that the preset position of the current product to be detected has a label, the label dropping detection is performed on the current product to be detected during the label dropping detection, and the label dropping detection is performed on the current product to be detected, specifically comprising:
tracking the label position of the current product to be detected through a position following algorithm;
and (4) performing label dropping detection on the current product to be detected.
7. The visual zero-missing-mark detection method of claim 1, wherein the missing mark detection is performed on the current product to be detected at a position close to the back side of the mark outlet of the marking machine.
8. The visual zero-missing-mark detection method of claim 1, wherein the missing mark detection is performed on the current product to be detected at a preset distance position from the rear side of the mark outlet of the marking machine.
9. The visual inspection method of claim 8, wherein the predetermined distance is between 0.8m and 1 m.
10. A visual detection device for zero missing marks is characterized in that the device comprises a visual detection system, a marking machine, a missing mark detection system and a missing mark detection system, wherein,
the visual detection system is used for identifying the quality of the current product to be detected, the quality identification result comprises a good product and a defective product, and if the quality identification result of the current product to be detected is a good product, the visual detection system sends a good product signal to the marking machine;
if the marking machine does not receive a good product signal, marking the current product to be detected by the marking machine so as to mark a label on the current product to be detected, and accumulating the current marking number;
the label missing detection system is used for detecting the missing label of the current product to be detected, the label falling detection system is used for detecting the missing label of the current product to be detected, and if the label missing detection system detects that the preset position of the current product to be detected has a label, the label falling detection system carries out label falling detection on the current product to be detected;
and the label dropping detection system judges whether the current marking number is consistent with the current label number, and if so, the zero label missing visual detection of the current product to be detected is finished.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116002180A (en) * | 2023-03-28 | 2023-04-25 | 超音速人工智能科技股份有限公司 | Automatic mark supplementing method, system, equipment and storage medium |
| CN116142594A (en) * | 2023-03-28 | 2023-05-23 | 超音速人工智能科技股份有限公司 | Label discharging control method, system, equipment and storage medium of labeling machine |
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- 2022-10-31 CN CN202211347713.6A patent/CN115672796A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116002180A (en) * | 2023-03-28 | 2023-04-25 | 超音速人工智能科技股份有限公司 | Automatic mark supplementing method, system, equipment and storage medium |
| CN116142594A (en) * | 2023-03-28 | 2023-05-23 | 超音速人工智能科技股份有限公司 | Label discharging control method, system, equipment and storage medium of labeling machine |
| CN116002180B (en) * | 2023-03-28 | 2023-08-22 | 超音速人工智能科技股份有限公司 | Automatic mark supplementing method, system, equipment and storage medium |
| CN116142594B (en) * | 2023-03-28 | 2023-09-22 | 超音速人工智能科技股份有限公司 | Label discharging control method, system, equipment and storage medium of labeling machine |
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