DETECTION DEVICE AND DETECTION METHOD FOR OBJECT DETECTION

Abstract

The present disclosure proposes a detection device and a detection method for detecting an object. The detection device includes a detection mechanism, a position sensing component, and a transport mechanism. The detection mechanism includes a radiation emitter and at least two radiation receivers spaced apart along an object transport direction. A detection area is provided between the radiation emitter and each of the radiation receivers. The detection mechanism detects an object when the object is in the detection area. The position sensing component detects whether the object is in the detection area. The transport mechanism is provided between the radiation emitter and the radiation receiver and transports the object. The transport mechanism transports the object at a first transmission speed when the detection mechanism does not detect the object, and at a second transmission speed when the detection mechanism detects the object, the first transmission speed being faster than the second transmission speed.

Description

[Technical Field]

[0001] This application claims priority from Chinese Patent Application No. 202311041902.5, filed on August 17, 2023, the contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of detection, and in particular to a detection device and method for battery core detection. [Background technology]

[0003] As the demand for object detection continues to grow, the market is placing increasing demands on detection quality, especially in the field of power batteries, where the consistency requirements for battery cores are becoming increasingly stringent. When detecting battery cores, X-rays must be used to detect 100% of the battery core's interior. Related technologies use flat panel detectors to detect battery cores, but the battery cores are stationary during the detection process, resulting in low scanning efficiency and affecting battery core production efficiency. Summary of the Invention [Means for solving the problem]

[0004] According to a detection device for detecting an object according to an embodiment of the first aspect of the present disclosure, the detection device includes a detection mechanism, a position sensing component, and a transport mechanism. The detection mechanism includes a radiation emitter and at least two radiation receivers spaced apart along a transport direction of the object. A detection area is provided between the radiation emitter and each of the radiation receivers. The detection mechanism detects the object when it is in the detection area. The position sensing component detects whether the object is in the detection area. The transport mechanism is provided between the radiation emitter and the radiation receiver and transports the object. The transport mechanism transports the object at a first transmission speed when the detection mechanism does not detect the object, and at a second transmission speed when the detection mechanism detects the object, the first transmission speed being faster than the second transmission speed.

[0005] In some embodiments, the transport mechanism includes a leading end and a trailing end arranged opposite to each other along a transport direction of the object, the radiation receiver includes at least a first receiver arranged near the leading end of the transport mechanism and a second receiver arranged near the trailing end of the transport mechanism, and the detection region includes a first sub-detection region arranged between the first receiver and the radiation emitter, and a second sub-detection region arranged between the second receiver and the radiation emitter.

[0006] Optionally, the position sensing component includes a first sensing element for detecting whether the object has entered the first sub-detection area and a second sensing element for detecting whether the object has left the second sub-detection area, and when the first sensing element detects that the object has entered the first sub-detection area, the radiation emitter and the first receiver, and the radiation emitter and the second receiver simultaneously detect the object, thereby realizing stepwise detection of the object.

[0007] In some embodiments, the detection device further includes a collimating mechanism having at least two collimating slots, the collimating slots filtering out interfering radiation to achieve collimation of the radiation, and the collimating slots are installed in one-to-one correspondence with the radiation receivers.

[0008] Optionally, the collimating mechanism includes a first collimator disposed between the radiation emitter and the transport mechanism and / or a second collimator disposed between the transport mechanism and the radiation receiver, each of the first collimator and the second collimator having at least two collimating slots.

[0009] In some embodiments, the detection device further includes an imaging component that performs splicing imaging based on the detection result of the detection mechanism.

[0010] According to a detection method for object detection according to an embodiment of the second aspect of the present disclosure, the detection method is applied to a detection device for object detection, the detection device including a detection mechanism, a position sensing component, and a transport mechanism. the position sensing component detecting whether the object is within a detection region; When the object is not located in the detection area, the transport mechanism transports the object at a first transmission speed; If the object is in the detection area, the detection mechanism detects the object, and the transport mechanism transports the object at a second transmission speed.

[0011] Optionally, the position sensing component detecting whether the object is in a detection area comprises: The first sensing element detects whether the object enters a first sub-detection area; The second sensing element detects whether the object has exited a second sub-detection region.

[0012] Optionally, when the first sensing element detects that the object has entered the first sub-detection area, the radiation emitter and first receiver detect the object in the first sub-detection area, and the radiation emitter and second receiver detect the object in the second sub-detection area; When the second sensing element detects that the object has left the second sub-detection region, the detection mechanism stops detecting.

[0013] In some embodiments, after the detection mechanism detects the object, the imaging component performs splicing imaging based on the detection result of the detection mechanism.

[0014] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the present application.

[0015] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood by describing embodiments of the present disclosure with reference to the following drawings. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of a detection device according to an embodiment of the first aspect of the present disclosure, in which the battery core does not enter the first sub-detection area. [Figure 2] FIG. 2 is a schematic diagram of a detection mechanism of a detection device according to an embodiment of the first aspect of the present disclosure. [Figure 3] FIG. 3 is a schematic diagram of the detection of the battery core by the detection mechanism of the detection device according to the first embodiment of the present disclosure. [Figure 4] FIG. 4 is a schematic diagram of the detection device according to the first embodiment of the present disclosure when the battery core exits the second sub-detection area. [Figure 5] FIG. 5 is a flowchart of a detection method for object detection according to an embodiment of the second aspect of the present disclosure. [Figure 6] FIG. 6 is a flowchart of a detection method for object detection according to an embodiment of the second aspect of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0017]

[0023] The following detailed description of the embodiments of the present disclosure is provided in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are merely illustrative and are intended to interpret the present disclosure, but should not be construed as limiting the present disclosure.

[0018] The present disclosure provides a detection device for object detection that can improve object detection efficiency while ensuring object detection accuracy and improve object production efficiency.

[0019] According to an embodiment of the first aspect of the present disclosure, a detection device for object detection includes a detection area between a radiation emitter of a detection mechanism and each radiation receiver, and a transport mechanism between the radiation emitter and the radiation receiver. When an object is placed on the transport mechanism, the transport mechanism transports the object at a first transmission speed. After a position sensing component detects that the object is within the detection area, the transport mechanism switches from the first transmission speed to a second transmission speed, slowing the object transport speed and allowing the detection mechanism to detect the object. The detection mechanism detects a portion of the object within the detection area corresponding to each radiation receiver. After the position sensing component detects that the object is no longer within the detection area, this indicates that object detection is complete. The detection mechanism stops detection, the transport mechanism switches from the second transmission speed to the first transmission speed, and the object transport speed returns to normal. By configuring at least two radiation receivers, the object can be detected in stages after it enters the detection area. After object detection is completed, the staged detection structure is spliced ​​together to achieve a complete object detection result. When the detection mechanism detects an object, the transport mechanism slows down the transport speed, thereby increasing the accuracy of the object detection results. This makes it possible to improve the object detection efficiency while ensuring the accuracy of object detection, and to improve the production efficiency of objects.

[0020] The present disclosure further provides a detection method for object detection that can ensure object detection accuracy while improving object detection efficiency using a detection device.

[0021] A detection device 100 for detecting an object 200 according to an embodiment of the present disclosure will now be described with reference to FIGS.

[0022] As shown in FIGS. 1 to 4, according to a detection device 100 for detecting an object 200 according to an embodiment of the first aspect of the present disclosure, the detection device 100 includes a detection mechanism 10, a position sensing component, and a transport mechanism 20.

[0023] The object detection device described in the present disclosure is not particularly limited in the type of object that can be detected. In the following examples, for ease of understanding, the detection of a battery core is used as an example, without affecting the scope of protection of the present disclosure. The battery core described in the examples can be replaced with any object that requires X-ray inspection.

[0024] The detection mechanism 10 includes a radiation emitter 11 and at least two radiation receivers 12 spaced apart along the transport direction of the battery core 200. A detection area is provided between the radiation emitter 11 and each radiation receiver 12. The detection mechanism 10 is used to detect the battery core 200 when it is within the detection area. A position sensing component is used to detect whether the battery core 200 is within the detection area. The transport mechanism 20 is installed between the radiation emitter 11 and the radiation receiver 12 and transports the battery core. The transport mechanism 20 transports the battery core 200 at a first transmission speed when the detection mechanism 10 does not detect the battery core 200, and transports the battery core 200 at a second transmission speed when the detection mechanism 10 detects the battery core 200, the first transmission speed being faster than the second transmission speed.

[0025] Specifically, a detection area is provided between the radiation emitter 11 of the detection mechanism 10 and each radiation receiver 12, and a transport mechanism 20 is provided between the radiation emitter 11 and the radiation receiver 12. When a battery core 200 is placed on the transport mechanism 20, the transport mechanism 20 transports the battery core 200 at a first transmission speed. After the position sensing component detects that the battery core 200 is within the detection area, the transport mechanism 20 switches from the first transmission speed to a second transmission speed, the transport speed of the battery core 200 slows down, and the detection mechanism 10 begins to detect the battery core 200. After the detection mechanism 10 detects some of the battery cores 200 within the detection area corresponding to each radiation receiver 12, and the position sensing component detects that the battery core 200 is not located within the detection area, this means that the detection of the battery core 200 is completed, and the detection mechanism 10 stops detection, the transport mechanism 20 switches from the second transmission speed to the first transmission speed, and the transport speed of the battery core 200 returns to normal.

[0026] By setting up at least two radiation receivers 12, the battery core 200 can be detected in stages after it enters the detection area. After the detection of the battery core 200 is completed, the staged detection structure is spliced ​​to obtain the complete detection result of the battery core 200. Then, when the detection mechanism 10 detects the battery core 200, the conveying mechanism 200 slows down the conveying speed, so that the accuracy of the detection result of the battery core 200 is improved.

[0027] According to the detection device 100 for detecting the battery core 200 of the embodiment of the first aspect of the present disclosure, it is possible to improve the detection efficiency of the battery core 200 while ensuring the accuracy of the detection of the battery core 200, and to improve the production efficiency of the battery core 200.

[0028] Alternatively, the detection mechanism 10 may be provided with multiple radiation receivers 12, which may be spaced apart along the transport direction of the battery core 200. When the transport mechanism 20 transports the battery core 200 into the detection area, the transport mechanism 20 first switches from a first transmission speed to a second transmission speed. At this time, the transport speed of the battery core 200 slows, and the radiation emitters 11 simultaneously emit radiation to the multiple radiation receivers 12. The radiation passes through the battery core 200 and is received by the radiation receivers 12, thereby detecting defects in the battery core 200. Because the transport speed of the battery core 200 in the detection area is slow, providing multiple radiation receivers 12 along the transport direction of the battery core 200 allows multiple parts of the battery core 200 to be detected simultaneously when the battery core 200 is in the detection area, shortening the residence time of the battery core 200 in the detection area and significantly improving the detection efficiency of the battery core 200.

[0029] Since the detection of the battery core 200 by the multiple radiation receivers 12 has overlapping areas, when splicing the detection results of different parts of the battery core 200, the detection structures of the overlapping areas can be overlapped, which can further improve the data quality and the detection accuracy of the battery core 200.

[0030] Note that the type of radiation receiver 12 is not particularly limited. The radiation receiver 12 may be a single-row detector or a multi-row narrow detector. When the radiation receiver 12 is a single-row detector, the detection mechanism 10 detects the battery core 200 as a line scan. By placing the battery core 200 on the conveying mechanism 20, the battery core 200 is moved while being scanned to form a planar scan result. After that, the results of the multiple radiation receivers 12 are spliced ​​together to obtain a complete scan result of the battery core 200.

[0031] If the radiation receiver 12 is a multi-row narrow detector, a narrow planar scan result can be formed when detecting the battery core 200, and then a wide planar scan result can be formed by transporting the battery core 200 by the transport mechanism 20. Using a narrow detector can further shorten the detection time of the battery core 200 at the second transmission speed, thereby improving the detection speed of the battery core 200.

[0032] In some embodiments, the transport mechanism 20 includes a leading end and a trailing end that are arranged opposite to each other along the transport direction of the battery core 200, and the radiation receiver 12 includes at least a first receiver 121 located near the leading end of the transport mechanism 20 and a second receiver 122 located near the trailing end of the transport mechanism 20. The detection region includes a first sub-detection region 30 provided between the first receiver 121 and the radiation emitter 11, and a second sub-detection region 40 provided between the second receiver 122 and the radiation emitter 11.

[0033] Specifically, the first receiver 121 is installed near the leading end of the conveying mechanism 20, the second receiver 122 is installed near the trailing end of the conveying mechanism 20, a first sub-detection region 30 is provided between the first receiver 121 and the radiation emitter 11, and a second sub-detection region 40 is provided between the second receiver 122 and the radiation emitter 11. When the detection device 100 detects the battery core 200, the conveying mechanism 20 detects and conveys the battery core 200. When the position sensing component detects that the battery core 200 is within the first sub-detection region 30, the detection mechanism 10 begins to detect the battery core 200. The radiation emitter 11 and the first receiver 121 detect a portion of the battery core 200 within the first sub-detection area 30, the radiation emitter 11 and the second receiver 122 detect a portion of the battery core 200 within the second sub-detection area 30, and the conveying mechanism 20 conveys the battery core 200 at a second transmission speed.

[0034] According to this, by simultaneously detecting the battery core 200 in the first sub-detection area 30 and the second sub-detection area 40, respectively, the detection time for the battery core 200 is shortened and the detection efficiency for the battery core 200 is improved. Furthermore, since the detection of the battery core 200 is performed in stages, the first receiver 121 and the second receiver 122 can each receive radiation passing through the battery core 200, and the two do not interfere with each other, thereby ensuring high detection accuracy for the battery core 200.

[0035] Optionally, the position sensing component includes a first sensing element for detecting whether the battery core 200 has entered the first sub-detection area 30, and a second sensing element for detecting whether the battery core 200 has exited the second sub-detection area 40. When the first sensing element detects that the battery core 200 has entered the first sub-detection area 30, the radiation emitter 11 and the first receiver 121, and the radiation emitter 11 and the second receiver 122 simultaneously detect the battery core 200, thereby realizing gradual detection of the battery core 200.

[0036] Specifically, the first sensing element detects whether the battery core 200 has entered the first sub-detection area 30, and the second sensing element detects whether the battery core 200 has left the second sub-detection area 40. The first sensing element continues to detect the position of the battery core 200. When the first sensing element detects that the transport mechanism 20 has transported the battery core 200 to the first sub-detection area 30, the transport mechanism 20 switches from the first transmission speed to the second transmission speed, and the radiation emitter 11 and the first receiver 121, and the radiation emitter 11 and the second receiver 122 simultaneously detect the battery core 200. The battery core 200 continues to move in the transport direction at the second transmission speed. After the leading edge of the battery core 200 passes through the first sub-detection area 30, the front of the battery core 200 is detected by the radiation emitter 11 and the first receiver 121, and the rear of the battery core 200 is detected by the radiation emitter 11 and the second receiver 122. After the second sensing element detects that the battery core 200 has exited the second sub-detection area 40, it means that the detection of the battery core 200 is completed, and the conveying mechanism 20 switches from the second transmission speed to the first transmission speed and quickly transports the detected battery core 200 out of the detection area.

[0037] Therefore, the detection efficiency of the battery core 200 can be further improved by detecting the position of the battery core 200 using the first sensing element and the second sensing element.

[0038] The radiation receiver 12 may include a third receiver, a fourth receiver, ..., an nth receiver, and the multiple receivers are installed at intervals between the first receiver 121 and the second receiver 122, so that the detection area includes a third sub-detection area, a fourth sub-detection area, ..., an nth sub-detection area. After the first sensing element detects that the battery core 200 has entered the first sub-detection area 30, the radiation emitter 11 and each radiation receiver 12 simultaneously detect the battery core 200. By installing multiple radiation receivers 12, the moving distance of the battery core 200 at the second transmission speed can be shortened, and the detection efficiency of the battery core 200 can be further improved.

[0039] When the battery core 200 includes n radiation receivers 12, the n radiation receivers 12 are installed at equal intervals, and the distance between two adjacent radiation receivers 12 is equal to n parts of the length of the battery core 200. That is, the distance between the first receiving unit 121 and the second receiving unit 122 is the same as the length of the battery core 200. The n radiation receivers 12 divide the battery core 200 into n equal parts in the length direction. The first receiver 121 and the second receiver 122 are installed corresponding to the leading and trailing ends of the battery core 200 in the length direction, respectively, and the other radiation receivers 12 are installed corresponding to the n equal parts of the battery core 200. In this way, the n radiation receivers 12 can divide the battery core 200 into n-1 stages in the longitudinal direction, and when the radiation emitter 11 and the first receiver 121 begin to detect the battery core 200 entering the first sub-detection area 30, the other radiation receivers 12 also operate simultaneously, and when the second sensing element detects that the battery core 200 has exited the second sub-detection area 40, each radiation receiver 12 completes detection of the corresponding part of the battery core 200, thereby further improving the detection efficiency of the battery core 200.

[0040] In some embodiments, the detection apparatus 100 further includes a collimating mechanism 50. The collimating mechanism 50 has at least two collimating slots 51. The collimating slots 51 are used to filter out interfering radiation and achieve collimation of the radiation. The collimating slots 51 are installed in one-to-one correspondence with the radiation receivers 12.

[0041] Specifically, when the radiation emitter 11 emits radiation to the radiation receiver 12, scattering and reflection phenomena occur due to the properties of the radiation itself and the influence of the environment, and these scattered and reflected radiation become interference radiation 12, which causes interference when the radiation receiver 12 receives a detection signal, resulting in large noise in the detection data. By configuring the collimating mechanism 50 and arranging the collimating slots 51 and the radiation receivers 12 in one-to-one correspondence, the collimating slots 51 can filter out the scattered and reflected interference radiation as the radiation passes through, reducing noise in the detection data and improving the detection accuracy of the detection device 100.

[0042] It can be understood that the number of collimating slots 51 of the collimating mechanism 50 corresponds one-to-one to the number of radiation receivers 12. For example, if there are a plurality of radiation receivers 12, there will also be a plurality of collimating slots 51 of the collimating mechanism 50. Each collimating slot 51 is provided corresponding to one of the radiation receivers 12.

[0043] Here, the width of the collimating slot 51 is not particularly limited. The wider the collimating slot 51, the more radiation rays pass through the collimating slot 51, and the higher the detection efficiency of the battery core 200. However, the noise in the signal that passes through the collimating slot 51 and is received by the radiation receiver 12 also increases, and the detection accuracy of the battery core 200 decreases. The narrower the width of the collimating slot 51, the less radiation rays pass through the collimating slot 51, and the noise in the signal that is received by the radiation receiver 12 decreases, and the detection accuracy of the battery core 200 increases, but the detection efficiency of the battery core 200 decreases. The width of the collimating slot 51 can be adjusted according to the requirements for detection accuracy and efficiency of the battery core 200 when actually detecting the battery core 200.

[0044] Note that there are no particular limitations on the material of the collimating mechanism 50. For example, it may be a simple protective material such as lead or iron, or a composite protective material such as barium cement or lead rubber. The areas of the collimating mechanism 50 other than the collimating slots 51 only need to have a good shielding effect against radiation, and can be selected according to actual needs.

[0045] 1, 3 and 4, the collimating mechanism 50 optionally includes a first collimator installed between the radiation emitter 11 and the transport mechanism 20 and / or a second collimator installed between the transport mechanism 20 and the radiation receiver 12. Both the first collimator and the second collimator are provided with at least two collimating slots 51.

[0046] Specifically, the collimating mechanism 50 can be installed at different positions in the detection device 100. For example, the collimating mechanism 50 can be installed between the radiation emitter 11 and the transport mechanism 20, or the collimating mechanism 50 can be installed between the transport mechanism 20 and the radiation receiver 12. The collimating mechanism can also be installed between the radiation emitter 11 and the transport mechanism 20, or between the transport mechanism 20 and the radiation receiver 12. When a first collimator is installed between the radiation emitter 11 and the transport mechanism 20, radiation emitted by the radiation emitter 11 is first filtered by the first collimator, and then the collimated radiation detects the battery core 200 located on the transport mechanism 20, thereby improving detection accuracy. When a second collimator is installed between the transport mechanism 20 and the radiation receiver 12, radiation emitted by the radiation emitter 11 first detects the battery core 200, and the radiation that passes through the battery core 200 is collimated by the second collimator and then received by the radiation receiver 12, thereby improving detection accuracy. When a first collimator and a second collimator are installed both between the radiation emitter 11 and the transport mechanism 20 and between the transport mechanism 20 and the radiation receiver 12, double filtering can be used to further improve detection accuracy of the battery core 200.

[0047] Optionally, the position sensing component further includes a distance sensing element for detecting the movement distance of the battery core 200. When the detection mechanism 10 detects the battery core 200, if the detection mechanism 10 includes multiple radiation receivers 12, the multiple radiation receivers divide the detection area into multiple sub-detection areas, and the space between each radiation receiver 12 and the radiation emitter 11 corresponds to one sub-detection area. When detecting the battery core 200, the battery core 200 can be divided into multiple detection segments, and the length of each detection segment in the transport direction of the battery core 200 is related to the number of radiation receivers 12. The more the number of radiation receivers 12, the shorter the length of each detection segment. Conversely, the fewer the number of radiation receivers 12, the longer the length of each detection segment.

[0048] By installing a distance sensing element, it is possible to detect the movement distance of the battery core 200 and determine whether the movement distance of the battery core 200 has reached the length of a predetermined detection segment, and if it is detected that the movement distance of the battery core 200 has not reached the length of the predetermined detection segment, the conveying mechanism 20 continues to convey the battery core 200, and the detection mechanism 10 continues to detect the battery core 200. In this way, after the detection of the battery core 200 is completed, it can be guaranteed that the entire range of the battery core 200 has been detected, which can avoid missed detection and further improve the detection accuracy of the battery core 200.

[0049] In some embodiments, the detection device 100 further includes an imaging component that performs splicing imaging based on the detection result of the detection mechanism 10 .

[0050] Specifically, after the transport mechanism 20 transports the battery core 200 to the detection area and the detection mechanism 10 completes detection on the battery core 200, at least two radiation receivers 12 can obtain detection results of different positions on the battery core 200. The imaging component can splice the detection results obtained by the different radiation receivers 12 to form a complete detection result of the battery core 200.

[0051] When the detection mechanism 10 includes multiple radiation receivers 12, the detection results obtained by the multiple radiation receivers 12 may overlap to some extent, and when the imaging component splices and images the detection results, the overlapping areas can be imaged in an overlapping manner, thereby increasing the detection accuracy of the overlapping areas.

[0052] Therefore, the accuracy of the detection result of the battery core 200 can be guaranteed. A specific configuration of the detection device 100 for detecting the battery core 200 according to an embodiment of the present disclosure will be described below.

[0053] The detection apparatus 100 includes a detection mechanism 10, a position sensing component, a transport mechanism 20, a collimating mechanism 50, and an imaging component.

[0054] The detection mechanism 10 includes a radiation emitter 11 and a radiation receiver 12, and a detection region is provided between the radiation emitter 11 and the radiation receiver 12. The transport mechanism 20 is installed between the radiation emitter 11 and the radiation receiver 12 and transports the battery core 200. The transport mechanism 20 transports the battery core 200 at a first transmission speed when the detection mechanism 10 does not detect the battery core 200, and transports the battery core 200 at a second transmission speed when the detection mechanism 10 detects the battery core 200. The first transmission speed is faster than the second transmission speed. The radiation receiver 12 includes a first receiver 121 installed near the leading end of the transport mechanism 20 and a second receiver 122 installed near the trailing end of the transport mechanism 20. The detection region includes a first sub-detection region 30 located between the first receiver 121 and the radiation emitter 11 and a second sub-detection region 40 located between the second receiver 122 and the radiation emitter 11.

[0055] The position sensing component includes a first sensing element for detecting whether the battery core 200 enters the first sub-detection region 30 and a second sensing element for detecting whether the battery core 200 exits the second sub-detection region 40, and when the first sensing element detects that the battery core 200 enters the first sub-detection region 30, the radiation emitter 11 and the first receiver 121, and the radiation emitter 11 and the second receiver 122 simultaneously detect the battery core 200 to achieve battery segment detection. The imaging component performs splicing imaging based on the detection result of the detection mechanism 10.

[0056] The collimating mechanism 50 is installed between the radiation emitter 11 and the transport mechanism 20, and has two collimating slots 51. The collimating slots 51 are used to filter out interfering radiation so as to achieve collimation of the radiation. The collimating slots 51 and the radiation receivers 12 are installed in one-to-one correspondence.

[0057] According to a detection method for detecting a battery core 200 according to an embodiment of the second aspect of the present disclosure, the detection method is applied to a detection device 100 for detecting a battery core 200. The detection device 100 includes a detection mechanism 10, a position sensing component, and a transport mechanism 20. The detection method includes the following steps:

[0058] S10: The position sensing component detects whether the battery core 200 is within the detection area.

[0059] S20: If the battery core 200 is not located in the detection area, the transport mechanism 20 transports the battery core 200 at a first transmission speed.

[0060] S30: When the battery core 200 is in the detection area, the detection mechanism 10 detects the battery core 200, and the transport mechanism 20 transports the battery core 200 at a second transmission speed.

[0061] In one embodiment of the present disclosure, the position sensing component detecting whether the battery core 200 is in the detection area includes the following steps.

[0062] S101: The first sensing element detects whether the battery core 200 enters the first sub-detection area 30.

[0063] S102: The second sensing element detects whether the battery core 200 has exited the second sub-detection area 40.

[0064] In one embodiment of the present disclosure, the detection method comprises: When the first sensing element detects that the battery core 200 has entered the first sub-detection area 30, the transport mechanism 20 transports the battery core 200 at a second transmission speed, the radiation emitter 11 and the first receiver 121 detect the battery core 200 in the first sub-detection area 30, and the radiation emitter 11 and the second receiver 122 detect the battery core 200 in the second sub-detection area 40; The second sensing element detects whether the battery core 200 has exited the second sub-detection area 40; The method further includes, when the second sensing element detects that the battery core 200 has exited the second sub-detection area 40, the conveying mechanism 20 switches to conveying the battery core 200 at the first transmission speed, and the detection mechanism 10 stops detection.

[0065] After the detection mechanism 10 detects the battery core 200, the imaging component performs splicing imaging based on the detection result of the detection mechanism 10.

[0066] Although various units are described herein using terms such as "first" and "second," it should be understood that these units should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit could be referred to as a second unit, and similarly, a second unit could be referred to as a first unit, without departing from the scope of the exemplary embodiments of the present disclosure.

[0067] The term "and / or" as used herein describes only a relational relationship between related objects, and three possible relationships exist. For example, A and / or B means three cases: A exists alone, B exists alone, and A and B exist simultaneously. The term "and" as used herein describes another relational relationship between related objects, and two possible relationships exist. For example, "A and B" means two cases: A exists alone, and A and B exist alone. Additionally, "and" as used herein generally means that the related objects are in an "or" relationship.

[0068] As used herein, when a unit is referred to as being "connected," "adjacent," or "coupled" to another unit, it is understood that the unit may be directly connected or coupled to the other unit, or that there may be intervening units. Accordingly, as used herein, when a unit is referred to as being "directly connected" or "directly coupled" to another unit, it indicates that there are no intervening units. Additionally, other words used to describe relationships between units should be interpreted in a similar manner (e.g., "between" and "directly between," "adjacent" and "directly adjacent," etc.).

[0069] It should be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present disclosure. As used herein, the singular forms "one," "one," and "this" are intended to include the plural forms unless the context clearly indicates otherwise. Also, the terms "comprise," "included," "includes," and / or "included," when used herein, refer to the presence of stated features, integers, steps, operations, units, and / or components and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0070] Although the present disclosure has been described by the above embodiments, it should be understood that the above embodiments are merely examples and explanations, and are not intended to limit the scope of the present disclosure to the above embodiments. Those skilled in the art can make further variations and modifications based on the teachings of the present disclosure, and it can be understood that all of these variations and modifications are included in the scope that the present disclosure aims to solve. [Explanation of symbols]

[0071] Explanation of symbols Detection device 100 Detection mechanism 10, radiation emitter 11, radiation receiver 12, first receiver 121, second receiver 122 Transport mechanism 20 First sub-detection area 30 Second sub-detection area 40 Collimating mechanism 50, collimating slot 51 Battery Core 200.

Claims

1. 1. A detection device for object detection, comprising: a detection mechanism (10) including a radiation emitter (11) and at least two radiation receivers (12) spaced apart along a conveying direction of an object (200), wherein a detection region is provided between the radiation emitter (11) and each of the radiation receivers (12), and the detection mechanism (10) detects the object (200) when the object (200) is in the detection region; a position sensing component that detects whether the object (200) is in the detection area; a transport mechanism (20) provided between the radiation emitter (11) and the radiation receiver (12), for transporting the object (200), for transporting the object (200) at a first transmission speed when the detection mechanism (10) does not detect the object (200), and for transporting the object (200) at a second transmission speed when the detection mechanism (10) detects the object (200), wherein the first transmission speed is faster than the second transmission speed; A detection device for detecting an object, comprising:

2. The conveying mechanism (20) includes a leading end and a trailing end that are disposed opposite to each other along a conveying direction of the object (200), The radiation receiver (12) includes at least a first receiver (121) provided near the tip of the transport mechanism (20) and a second receiver (122) provided near the end of the transport mechanism (20), The detection region includes a first sub-detection region (30) provided between the first receiver (121) and the radiation emitter (11), and a second sub-detection region (40) provided between the second receiver (122) and the radiation emitter (11).

2. A detection device for detecting an object according to claim 1.

3. the position sensing component includes a first sensing element for detecting whether the object (200) has entered the first sub-detection area, and a second sensing element for detecting whether the object (200) has exited the second sub-detection area; When the first sensing element detects that the object (200) enters the first sub-detection area, the radiation emitter (11) and the first receiver (121), and the radiation emitter (11) and the second receiver (122) simultaneously detect the object, thereby realizing a stepwise detection of the object.

3. A detection device for detecting an object according to claim 2.

4. further comprising a collimating mechanism (50) having at least two collimating slots (51); The collimating slot (51) filters out interfering radiation to achieve collimation of the radiation; The collimating slot (51) is provided in a one-to-one correspondence with the radiation receiver (12).

2. A detection device for detecting an object according to claim 1.

5. the collimating mechanism (50) includes a first collimator installed between the radiation emitter (11) and the transport mechanism (20) and / or a second collimator installed between the transport mechanism (20) and the radiation receiver (12); The first collimator and the second collimator each have at least two collimating slots (51).

5. A detection device for detecting an object according to claim 4.

6. Further, an imaging component for performing splicing imaging based on the detection result of the detection mechanism (10) is included.

2. A detection device for detecting an object according to claim 1.

7. 1. A detection method for object detection, comprising: A detection method applied to a detection device (100) for detecting an object (200), comprising a detection mechanism (10), a position sensing component, and a transport mechanism (20), comprising: the position sensing component detecting whether the object (200) is in a detection area; If the object (200) is not located within the detection area, the transport mechanism (20) transports the object (200) at a first transmission speed; When the object (200) is in the detection area, the detection mechanism (10) detects the object (200), and the transport mechanism (20) transports the object (200) at a second transmission speed.

10. A detection method for object detection, comprising:

8. The position sensing component detecting whether the object (200) is in a detection area includes: The first sensing element detects whether the object (200) enters a first sub-detection area (30); the second sensing element detecting whether the object (200) has left a second sub-detection area (40); Detection method for object detection according to claim 7.

9. When the first sensing element detects that the object (200) has entered the first sub-detection area (30), the radiation emitter (11) and the first receiver (121) detect the object (200) in the first sub-detection area (30), and the radiation emitter (11) and the second receiver (122) detect the object (200) in the second sub-detection area (40); When the second sensing element detects that the object (200) has left the second sub-detection region (40), the detection mechanism (10) stops detection. A detection method for object detection according to claim 8.

10. After the detection mechanism (10) detects the object (200), the imaging component performs splicing imaging based on the detection result of the detection mechanism (10). Detection method for object detection according to claim 7.

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