Electronic device blanking detection method and system

Abstract

The invention discloses an electronic device blanking detection method and system. The blanking sensor is additionally arranged between the first type of material box and the second type of material box, so that the blanking condition of the electronic devices can be detected. And according to the blanking condition, the feeding condition and the electronic device detection result, the actual blanking material box of the electronic device is obtained, so that whether the electronic device enters the correct material box or not is judged. According to the method provided by the invention, the blanking result can be accurately judged under the condition that the blanking material boxes are more and are tightly arranged, the abnormal blanking condition can be found in time, and the accuracy and reliability of the electronic device detection equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic device detection, and in particular to a method and system for detecting electronic device blanking. Background Art

[0002] Electronic device inspection equipment is commonly found in automated production lines and is widely used in manufacturing industries such as semiconductors and electronics to perform quality inspection, dimension measurement, and defect detection on electronic devices. In electronic device inspection equipment, the trigger system is responsible for controlling the various parts of the equipment so that they work in a predetermined order and under predetermined conditions. The trigger system usually includes a loading system, a camera trigger system, and a solenoid valve trigger system. Among them, the loading system is responsible for transporting electronic devices from the storage location to the inspection location, the camera trigger system is responsible for capturing images of electronic devices, and the solenoid valve trigger system can be used to control the blowing device to blow the inspected electronic devices into the designated material box.

[0003] In the prior art, since there are multiple material boxes corresponding to different electronic device types or test results at the end of the electronic device testing equipment, and they are numerous and closely arranged, the electronic device testing equipment cannot accurately determine whether the tested electronic devices are correctly blown into the corresponding material boxes. This will cause the number of electronic devices in the material box to be inconsistent with the record of the trigger system. As a result, the accuracy and reliability of the entire electronic device testing equipment are questioned. Therefore, how to improve the accuracy and reliability of the electronic device testing equipment has become a problem that needs to be solved urgently. Summary of the invention

[0004] Based on the above problems, the present application provides a method and system for electronic device blanking detection to improve the accuracy and reliability of electronic device detection equipment.

[0005] The present application discloses a method for detecting electronic device blanking, the method comprising:

[0006] Detect the feeding status of electronic devices and obtain feeding signals;

[0007] Acquire a picture of the electronic device according to the feeding signal, and obtain a detection result based on the picture;

[0008] According to the detection result, a current control instruction is obtained; the current control instruction is used to control the electronic device to unload into a target material box; the target material box is one of a first type of material box and a second type of material box sequentially arranged along the transmission direction of the electronic device;

[0009] Execute the current control instruction to complete unloading of the electronic device into the current material box; the current material box is a first-type material box or a second-type material box;

[0010] Acquire a material unloading signal at a detection position between the first material unloading position and the second material unloading position; when the material unloading signal is valid, it indicates that the electronic device is unloaded into the second type of material box; when the material unloading signal is invalid, it indicates that the electronic device is unloaded into the first type of material box;

[0011] Based on the loading signal, the unloading signal and the current control instruction, it is determined whether the electronic device is unloaded abnormally in the current material box.

[0012] Optionally, determining whether the electronic device is abnormally unloaded in the current material box based on the loading signal, the unloading signal and the current control instruction includes:

[0013] Determining the current material box from which the electronic device has been unloaded according to the loading signal and the unloading signal;

[0014] When the current material box is consistent with the target material box, it is determined that the electronic device is normally unloaded in the current material box;

[0015] When the current material box is inconsistent with the target material box, it is determined that the electronic device is abnormally discharged in the current material box.

[0016] Optionally, determining the current material box from which the electronic device has been unloaded according to the loading signal and the unloading signal includes:

[0017] The loading signal and the unloading signal are both valid, and it is determined that the electronic device is unloaded into the second type of material box;

[0018] The loading signal is valid and the unloading signal is invalid, and it is determined that the electronic device is unloaded into the first type of material box.

[0019] Optionally, determining whether the electronic device is abnormally unloaded in the current material box based on the loading signal, the unloading signal and the current control instruction includes:

[0020] The loading signal is invalid and the unloading signal is valid, and it is determined that the electronic device is unloaded abnormally in the current material box.

[0021] Optionally, after determining whether the electronic device is abnormally discharged, the method further includes:

[0022] The electronic devices of each blanking result are counted according to the blanking results of the electronic devices; the blanking results include: normal blanking in the first type of material box, abnormal blanking in the first type of material box, normal blanking in the second type of material box and abnormal blanking in the second type of material box.

[0023] Optionally, when the current material box is inconsistent with the target material box, it is determined that the reason for the abnormal unloading of the electronic device in the current material box is an abnormal control instruction.

[0024] Optionally, the loading signal is invalid and the unloading signal is valid, and it is determined that the reason why the electronic device unloads abnormally in the current material box is that the loading missed detection is abnormal.

[0025] Based on the above-mentioned method for detecting the unloading of electronic devices, the present application also discloses a system for detecting the unloading of electronic devices, which is used to implement the above-mentioned method. The system includes: a loading sensor, a controller, a camera assembly, a unloading sensor, a first type of material box and a second type of material box;

[0026] The feeding sensor detects the feeding status of the electronic device and obtains a feeding signal;

[0027] The controller controls the camera assembly to obtain a picture of the electronic device according to the feeding signal;

[0028] The controller obtains a detection result based on the image, and obtains a current control instruction according to the detection result; the current control instruction is used to control the electronic device to unload into a target material box; the target material box is one of a first type material box and a second type material box sequentially arranged along a transmission direction of the electronic device;

[0029] The controller executes the current control instruction to complete unloading of the electronic device into the current material box; the current material box is a first-type material box or a second-type material box;

[0030] The unloading sensor is located at a detection position between the first unloading position and the second unloading position, and is used to detect the unloading status of the electronic device and obtain an unloading signal; when the unloading signal is valid, it indicates that the electronic device is unloaded to the second type of material box; when the unloading signal is invalid, it indicates that the electronic device is unloaded to the first type of material box;

[0031] The controller determines whether the electronic device is abnormally discharged in the current material box based on the loading signal, the unloading signal and the current control instruction.

[0032] Optionally, the system also includes: a counting device for counting the electronic devices of each cutting result according to the cutting results of the electronic devices; the cutting results include: normal cutting in a first category of material boxes, abnormal cutting in a first category of material boxes, normal cutting in a second category of material boxes, and abnormal cutting in a second category of material boxes.

[0033] Optionally, the system further includes: a display device for determining and displaying the reason for abnormal unloading of the electronic device in the current material box.

[0034] The present application discloses a method and system for detecting the unloading of electronic devices. By adding an unloading sensor between the first type of material box and the second type of material box, the unloading situation of the electronic device can be detected. And according to the unloading situation, the loading situation and the electronic device detection result, the material box where the electronic device is actually unloaded is obtained, so as to judge whether the electronic device enters the correct material box. The method described in the present application can accurately judge the unloading result even when there are many unloading material boxes and they are arranged closely, and timely discover the abnormal unloading situation, thereby improving the accuracy and reliability of the electronic device detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] Figure 1 A schematic flow chart of a method for detecting electronic device blanking disclosed in an embodiment of the present application;

[0037] Figure 2 A schematic flow chart of another method for detecting electronic device blanking disclosed in an embodiment of the present application;

[0038] Figure 3 A schematic diagram of the structure of a system for detecting electronic device blanking disclosed in an embodiment of the present application;

[0039] Figure 4 This is a schematic diagram of signal transmission disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Embodiment 1: This application discloses a method for detecting electronic device blanking.

[0042] For details, please refer to Figure 1 The present embodiment discloses a method for detecting electronic device blanking, comprising the following steps:

[0043] Step 101: Detect the loading status of the electronic device and obtain a loading signal.

[0044] In the method described in this embodiment, the feeding signal can be obtained by a feeding sensor. The feeding sensor can be set at a detection position next to the feeding position to reduce signal errors caused by distance or interference, so that the feeding sensor can directly sense whether the electronic device is fed. As an optional method, the feeding sensor can be a fiber optic sensor. When the light is cut off by the electronic device at the detection position and then restored, it is determined that the electronic device has passed through the detection position. As another optional method, the feeding sensor can also determine that the electronic device has passed through the detection position by obtaining a photo of the electronic device, a barcode, the current when it passes, etc. The type of feeding sensor, the detection method of the electronic device passing, etc. are not specifically limited here, and it is sufficient to be able to detect the feeding situation of the electronic device.

[0045] In the method described in this embodiment, when it is detected that the electronic device passes through the detection position, the feeding sensor sends a feeding signal to the controller. As an optional method, when the feeding sensor is a fiber optic sensor, the electronic device passes through the detection position, causing the optical signal of the feeding sensor to change, and the feeding sensor converts the optical signal into an electrical signal, and generates a pulse electrical signal under the influence of the change, i.e., the feeding signal.

[0046] As an optional method, the controller can perform de-jittering and filtering on the feeding signal. De-jittering can make the pulse signal more stable, and filtering can process two signals with very close intervals into one signal. This embodiment does not specifically limit the interval judgment of the two signals, how to perform de-jittering and filtering, etc., and it is sufficient to be able to achieve the processing.

[0047] Step 102: Acquire an image of the electronic device according to the feeding signal, and obtain a detection result based on the image.

[0048] In the method described in this embodiment, after receiving the loading signal, the controller sends it to the camera assembly to control the camera assembly to obtain the image of the electronic device. As an optional method, since the camera assembly includes multiple shooting devices, and their positions are different, the controller can also delay the output of the loading signal. Specifically, the controller calculates and outputs the loading signal at the corresponding time to trigger the shooting action of multiple shooting devices according to the positions of multiple shooting devices, the positions of the solenoid valves, the speed of the conveyor belt and other parameters. More specifically, the method is applied to an electronic device detection system, which includes a rotatable carrier, and the electronic devices can be loaded onto the carrier in sequence. A loading sensor, multiple detection stations, and a first type of material box, a discharge sensor and a second type of material box are sequentially arranged along the circumference of the carrier, and the camera assembly of each detection station will capture images to achieve the purpose of detection; a first type of discharge assembly is arranged at the first type of material box; a second type of discharge assembly is arranged at the second type of material box; the first type of discharge assembly and the second type of discharge assembly can discharge the electronic device by air blowing.

[0049] In the method described in this embodiment, the camera component takes a photo of the electronic device and sends it to a detection device (such as a computer) for detection. The detection device can obtain the detection result of the electronic device through image processing and other operations. As an optional method, the detection result can be qualified or unqualified, or a numerical value such as 3 points or 10 points. The content of the detection result is not specifically limited here, and the current control instruction in step 103 can be obtained based on it.

[0050] Step 103: Obtain current control instructions according to the detection result.

[0051] In the method described in this embodiment, the current control instruction can be obtained according to the test result. For example, when the test result is qualified, the current control instruction should be to discharge the electronic device into the first type of material box, and when the test result is unqualified, the current control instruction should be to discharge the electronic device into the second type of material box. The above content is only used as an example to facilitate the understanding of the method described in this embodiment. In actual work, the relationship between the test result and the material box is not specifically limited, and it is sufficient to control the discharge of electronic devices into different material boxes.

[0052] In the method described in this embodiment, the current control instruction is used to control the electronic device to unload into the target material box, and the target material box is one of the first type material box and the second type material box arranged in sequence along the transmission direction of the electronic device. For example, the first type material box and the second type material box can be a qualified (OK) material box or a failed (NG) material box, respectively.

[0053] In the method described in this embodiment, as an optional method, the current control instruction is sent to the solenoid valve. The solenoid valve can blow the electronic device into the material box by blowing air, or control the unloading of the electronic device by an interception device (such as a plate). The unloading method of the electronic device and the equipment used for unloading are not specifically limited here, and it is sufficient to complete the unloading according to the current control instruction.

[0054] Step 104: Execute the current control instruction to complete unloading of the electronic components into the current material box.

[0055] In the method described in this embodiment, the current material box is a material box for actually unloading electronic devices, and specifically can be a material box of the same type or a second-type material box.

[0056] Step 105: Acquire a material unloading signal at a detection position between the first material unloading position and the second material unloading position.

[0057] In the method described in this embodiment, the unloading signal can be obtained by an unloading sensor. The unloading sensor is arranged at a detection position between the first unloading position and the second unloading position. As an optional method, the unloading sensor can be an optical fiber sensor. When the light is cut off by the electronic device at the detection position and then restored, it is determined that the electronic device has passed through the detection position. As another optional method, the unloading sensor can also determine that the electronic device has passed through the detection position by obtaining a photo of the electronic device, a barcode, the current when it passes, etc. The type of unloading sensor, the detection method of the electronic device passing, etc. are not specifically limited here, and it is sufficient to be able to detect the loading situation of the electronic device.

[0058] In the method described in this embodiment, when the electronic device is detected to pass through the detection position, the material unloading sensor sends a material unloading signal to the controller. As an optional method, when the material unloading sensor is a fiber optic sensor, the electronic device passes through the detection position, causing the optical signal of the material unloading sensor to change, and the material unloading sensor converts the optical signal into an electrical signal, and generates a pulse electrical signal under the influence of the change, i.e., the material unloading signal.

[0059] As an optional method, the controller can also perform de-jittering and filtering on the unloading signal. De-jittering can make the pulse signal more stable, and filtering can process two signals with very close intervals into one signal. This embodiment does not specifically limit the interval judgment of the two signals, how to perform de-jittering and filtering, etc., and it is sufficient that the processing can be achieved.

[0060] In the method described in this embodiment, the controller can determine whether the unloading signal is valid. Since the unloading sensor is arranged between the first type of material box and the second type of material box, when the unloading signal is valid, it means that the electronic device has passed the unloading sensor, that is, the unloading is to the second type of material box. When the unloading signal is invalid, it means that the electronic device has not passed the unloading sensor, that is, the unloading is to the first type of material box.

[0061] Step 106: Based on the loading signal, the unloading signal and the current control instruction, determine whether the electronic device is unloaded abnormally in the current material box.

[0062] In the method described in this embodiment, according to the loading signal and the unloading signal, it can be determined that the electronic device has completed unloading, that is, the current material box where the material is actually unloaded. As an optional method, specifically, if both the loading signal and the unloading signal are valid, it can be determined that the electronic device is unloaded to the second type of material box. If the loading signal is valid and the unloading signal is invalid, it can be determined that the electronic device is unloaded to the first type of material box.

[0063] In the method described in this embodiment, when the current material box is consistent with the target material box, it can be determined that the electronic device is normally discharged in the material box. When the current material box is inconsistent with the target material box, it can be determined that the electronic device is abnormally discharged in the current material box. When the loading signal is invalid and the unloading signal is valid, it can also be determined that the electronic device is abnormally discharged in the current material box.

[0064] As an optional method, the electronic devices of each unloading result can also be counted according to the unloading results of the electronic devices. Among them, the unloading results include normal unloading in the first type of material box, abnormal unloading in the first type of material box, normal unloading in the second type of material box, and abnormal unloading in the second type of material box. As another optional method, the cause of abnormal unloading can also be determined and displayed. Specifically, when the current material box is inconsistent with the target material box, it is determined that the reason for the abnormal unloading of the electronic device in the current material box is that the control instruction is abnormal. The cause of the abnormal control instruction needs to be investigated later. In one possible situation, the control instruction may be abnormal because the default value has not been modified. Accordingly, the loading signal is invalid and the unloading signal is valid, and it is determined that the reason for the abnormal unloading of the electronic device in the current material box is the loading missed detection abnormality.

[0065] The above-mentioned determination methods and contents of the causes of abnormal material discharge are only examples and are not specifically limited here. It is sufficient to be able to implement the method described in this embodiment.

[0066] The method described in this embodiment has a high degree of data intuitiveness and excellent scalability. In terms of data intuitiveness, it can display the number of electronic devices fed into unqualified (NG) boxes and qualified (OK) boxes in real time and accurately, making it easy to grasp the status of electronic devices. At the same time, abnormal feeding conditions can be detected, whether qualified electronic devices are mistakenly fed into unqualified boxes, or unqualified electronic devices are mistakenly fed into qualified boxes, which can be quickly identified and recorded to ensure the quality control of the production line. In terms of scalability, it has strong compatibility and can be easily integrated into a variety of other detection equipment. By monitoring the logical relationship between the starting (loading) state, the ending (unloading) state and the control instructions, it can accurately determine whether the operating status of the equipment is abnormal, and give a warning at the first time, which provides a strong guarantee for the stable operation of the production line.

[0067] Embodiment 2: This application discloses another method for detecting electronic device blanking, please refer to Figure 2 The method described in this embodiment introduces the entire process of electronic device blanking detection.

[0068] Step 201: Control the camera assembly to take pictures according to the obtained feeding signal.

[0069] Step 202: Obtain a picture of the electronic device taken by the camera assembly, and obtain a detection result based on the picture.

[0070] Step 203: generating a current control instruction for unloading the electronic components into a target material box according to the detection result.

[0071] Step 204: Execute the current control instruction and obtain the material unloading signal.

[0072] Step 205: Determine whether the loading signal is invalid and the unloading signal is valid. If yes, proceed to step 209. If no, proceed to step 206.

[0073] Step 206: Determine the current material box where the electronic components are actually unloaded according to the unloading signal.

[0074] Step 207: Determine whether the current material box is consistent with the target material box. If yes, proceed to step 208. If no, proceed to step 209.

[0075] Step 208: Electronic components are unloaded normally in the current material box.

[0076] Step 209: The electronic components are abnormally discharged in the current material box.

[0077] Based on the method for detecting electronic device blanking disclosed in the above embodiment, this embodiment correspondingly discloses an apparatus for detecting electronic device blanking, including: a loading sensor, a controller, a camera assembly, a blanking sensor, a first type of material box, and a second type of material box;

[0078] The feeding sensor detects the feeding status of the electronic device and obtains a feeding signal;

[0079] The controller controls the camera assembly to obtain a picture of the electronic device according to the feeding signal;

[0080] The controller obtains a detection result based on the image, and obtains a current control instruction according to the detection result; the current control instruction is used to control the electronic device to unload into a target material box; the target material box is one of a first type material box and a second type material box sequentially arranged along a transmission direction of the electronic device;

[0081] The controller executes the current control instruction to complete unloading of the electronic device into the current material box; the current material box is a first-type material box or a second-type material box;

[0082] The unloading sensor is located at a detection position between the first unloading position and the second unloading position, and is used to detect the unloading status of the electronic device and obtain an unloading signal; when the unloading signal is valid, it indicates that the electronic device is unloaded to the second type of material box; when the unloading signal is invalid, it indicates that the electronic device is unloaded to the first type of material box;

[0083] The controller determines whether the electronic device is abnormally discharged in the current material box based on the loading signal, the unloading signal and the current control instruction.

[0084] Optionally, the system also includes: a counting device for counting the electronic devices of each cutting result according to the cutting results of the electronic devices; the cutting results include: normal cutting in a first category of material boxes, abnormal cutting in a first category of material boxes, normal cutting in a second category of material boxes, and abnormal cutting in a second category of material boxes.

[0085] Optionally, the system further includes: a display device for determining and displaying the reason for abnormal unloading of the electronic device in the current material box.

[0086] Figure 3 This is a schematic diagram of the structure of a system for detecting electronic device blanking disclosed in an embodiment of the present application. The system described in this embodiment can be specifically Figure 3 As shown, point A is the position of the loading sensor, point B is the position of the unloading sensor, 1 to 7 are the positions of the camera components, OK is the position of the first type of material box, and NG1 to NG4 are the positions of the second type of material box.

[0087] Figure 4 This is a schematic diagram of signal transmission disclosed in the embodiment of the present application, such as Figure 4 As shown, the loading sensor at point A generates a signal pulse width after detecting the loading signal (at time T0). The signal is delayed for a fixed time (t1), and a signal A->B is obtained after the delay, that is, a signal pulse width is generated at time T1. Among them, t1 can be obtained based on the A and B angles and the turntable speed, and the data of t1 is not specifically limited here. The unloading sensor at point B generates a signal pulse width after detecting the unloading signal. After the electronic device passes through camera No. 7 and before reaching the OK material box (at time T1), the controller cmd determines the current control instruction (blowing instruction) based on the image of the electronic device and issues it.

[0088] The embodiments in this specification are described in a progressive manner. As for the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the methods.

[0089] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0090] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0091] The features described in the embodiments of this specification can be replaced or combined with each other, so that professional and technical personnel in this field can implement or use the present application.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting electronic device blanking, characterized in that: include: Detect the feeding status of electronic devices and obtain feeding signals; Acquire a picture of the electronic device according to the feeding signal, and obtain a detection result based on the picture; According to the detection result, a current control instruction is obtained; the current control instruction is used to control the electronic device to unload into a target material box; the target material box is one of a first type of material box and a second type of material box sequentially arranged along the transmission direction of the electronic device; Execute the current control instruction to complete unloading of the electronic device into the current material box; the current material box is a first-type material box or a second-type material box; Acquire a material unloading signal at a detection position between the first material unloading position and the second material unloading position; when the material unloading signal is valid, it indicates that the electronic device is unloaded into the second type of material box; when the material unloading signal is invalid, it indicates that the electronic device is unloaded into the first type of material box; Based on the loading signal, the unloading signal and the current control instruction, it is determined whether the electronic device is unloaded abnormally in the current material box.

2. The method according to claim 1, characterized in that The determining whether the electronic device is abnormally discharged in the current material box based on the loading signal, the unloading signal and the current control instruction includes: Determining the current material box from which the electronic device has been unloaded according to the loading signal and the unloading signal; When the current material box is consistent with the target material box, it is determined that the electronic device is normally unloaded in the current material box; When the current material box is inconsistent with the target material box, it is determined that the electronic device is abnormally discharged in the current material box.

3. The method according to claim 2, characterized in that The step of determining the current material box from which the electronic device has been unloaded according to the loading signal and the unloading signal comprises: The loading signal and the unloading signal are both valid, and it is determined that the electronic device is unloaded into the second type of material box; The loading signal is valid and the unloading signal is invalid, and it is determined that the electronic device is unloaded into the first type of material box.

4. The method according to claim 1, characterized in that The determining whether the electronic device is abnormally discharged in the current material box based on the loading signal, the unloading signal and the current control instruction includes: The loading signal is invalid and the unloading signal is valid, and it is determined that the electronic device is unloaded abnormally in the current material box.

5. The method according to claim 1, characterized in that After determining whether the electronic device is abnormally discharged, the method further includes: The electronic devices of each blanking result are counted according to the blanking results of the electronic devices; the blanking results include: normal blanking in the first type of material box, abnormal blanking in the first type of material box, normal blanking in the second type of material box and abnormal blanking in the second type of material box.

6. The method according to claim 2, characterized in that When the current material box is inconsistent with the target material box, it is determined that the reason for the abnormal unloading of the electronic device in the current material box is that the control instruction is abnormal.

7. The method according to claim 4, characterized in that The loading signal is invalid and the unloading signal is valid, and it is determined that the reason why the electronic device unloads abnormally in the current material box is that the loading missed detection is abnormal.

8. A system for detecting electronic device blanking, characterized in that: Used to implement the method described in any one of claims 1 to 7, the system comprises: a loading sensor, a controller, a camera assembly, a unloading sensor, a first type of material box and a second type of material box; The feeding sensor detects the feeding status of the electronic device and obtains a feeding signal; The controller controls the camera assembly to obtain a picture of the electronic device according to the feeding signal; The controller obtains a detection result based on the image, and obtains a current control instruction according to the detection result; the current control instruction is used to control the electronic device to unload into a target material box; the target material box is one of a first type material box and a second type material box sequentially arranged along a transmission direction of the electronic device; The controller executes the current control instruction to complete unloading of the electronic device into the current material box; the current material box is a first-type material box or a second-type material box; The unloading sensor is located at a detection position between the first unloading position and the second unloading position, and is used to detect the unloading status of the electronic device and obtain an unloading signal; when the unloading signal is valid, it indicates that the electronic device is unloaded to the second type of material box; when the unloading signal is invalid, it indicates that the electronic device is unloaded to the first type of material box; The controller determines whether the electronic device is abnormally discharged in the current material box based on the loading signal, the unloading signal and the current control instruction.

9. The system according to claim 8, characterized in that The system also includes: a counting device for counting the electronic devices of each blanking result according to the blanking results of the electronic devices; the blanking results include: normal blanking in a first type of material box, abnormal blanking in a first type of material box, normal blanking in a second type of material box, and abnormal blanking in a second type of material box.

10. The system according to claim 8, characterized in that The system further comprises: a display device for determining and displaying the reason why the electronic device is abnormally discharged into the current material box.

Images