Method for field of view angle detection for one-dimensional tof detector and detection device thereof

Abstract

Disclosed are a field of view angle detection method for a one-dimensional TOF detector and a detection device thereof, wherein the field of view angle detection method for the one-dimensional TOF detector is achieved by moving a line cursor along a specific direction so that the line cursor gradually approaches a receiving end of the one-dimensional TOF detector along the specific direction; when the line cursor is detected, the distance between the line cursor and the receiving end of the one-dimensional TOF detector is the farthest detection distance between the line cursor and the receiving end of the one-dimensional TOF detector; and the field of view angle of the receiving end, i.e., the receiving field of view angle of the one-dimensional TOF detector, can be obtained according to the positional relationship between the line cursor and the receiving end of the one-dimensional TOF detector at this time. In this way, the detection of the receiving field of view angle of the one-dimensional TOF detector can be achieved without relying on two-dimensional or three-dimensional images.

Description

Technical Field

[0001] This application relates to the field of module optical inspection, and more specifically to a field-of-view detection method and device for a one-dimensional TOF detector. Background Technology

[0002] The receiving field of view of a distance detector refers to the maximum range of light that the receiving end of the distance detector can receive, and it is an important performance parameter of the distance detector. Currently, the receiving field of view of the distance detector is mainly detected by imaging (i.e., image output). Specifically, firstly, the object is imaged through the receiving end of the distance detector to obtain an image of the object; then, the field of view of the receiving end of the distance detector is obtained by analyzing the image of the object.

[0003] Therefore, detecting the receiving field of view of a distance detector through imaging is generally suitable for devices with two-dimensional or three-dimensional imaging capabilities. However, depending on the application scenario and actual needs, some distance detectors have abandoned the image output function and cannot detect their receiving field of view through imaging. For example, a one-dimensional TOF detector cannot acquire two-dimensional or three-dimensional images of the target at its receiver. Consequently, a one-dimensional TOF detector cannot easily obtain its receiving field of view by using an area array photosensitive element for two-dimensional or three-dimensional imaging.

[0004] Therefore, a novel field-of-view detection scheme is needed to detect the receiving field of view of a one-dimensional TOF detector. Summary of the Invention

[0005] One advantage of this application is that it provides a field-of-view detection method and device for a one-dimensional TOF detector, wherein the field-of-view detection method for a one-dimensional TOF detector can detect the receiving field-of-view of the distance detector by scanning, so as to be suitable for detecting the receiving field-of-view of a one-dimensional TOF detector.

[0006] Another advantage of this application is that it provides a field of view detection method and device for a one-dimensional TOF detector. The field of view detection method for a one-dimensional TOF detector can complete the detection of the field of view without capturing a multi-dimensional image of the target object, which relatively reduces the difficulty of field of view detection.

[0007] To achieve at least one of the above advantages or other advantages and objectives, according to one aspect of this application, a method for detecting the field of view of a one-dimensional TOF detector is provided, comprising:

[0008] A field of view detection device is provided having a first surface and a second surface that are opposite and parallel to each other, wherein the field of view detection device includes: a line cursor disposed on the first surface and an interface disposed on the second surface;

[0009] The receiver of the one-dimensional TOF detector is plugged into the interface so that the photosensitive surface of the receiver is coplanar with the first surface.

[0010] The line cursor is moved within the first surface along a first direction, such that the line cursor gradually approaches the receiving end within the first surface along the first direction, until the line cursor is just detected by the receiving end in the first direction; and

[0011] Based on the positional relationship between the line cursor and the receiving end when the line cursor is just detected in the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined.

[0012] In the field-of-view detection method for a one-dimensional TOF detector according to this application, the field-of-view detection method for a one-dimensional TOF detector further includes: moving the line cursor in the first plane along a second direction, such that the line cursor gradually approaches the receiving end in the first plane along the second direction until the line cursor is just detected by the receiving end in the second direction, wherein the second direction is perpendicular to the first direction; and determining the field-of-view angle of the receiving end of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the line cursor and the receiving end when the line cursor is just detected in the second direction.

[0013] In the field-of-view detection method for a one-dimensional TOF detector according to this application, moving the line cursor in the first plane along a first direction includes: maintaining the length extension direction of the line cursor perpendicular to the first direction.

[0014] In the field-of-view detection method for a one-dimensional TOF detector according to this application, determining the field-of-view of the receiver of the one-dimensional TOF detector in the first direction based on the positional relationship between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the first direction includes: determining the field-of-view of the receiver of the one-dimensional TOF detector in the first direction based on the distance between the ray-pointing cursor and the receiver in the first direction when the ray-pointing cursor is just detected in the first direction, and the distance between the ray-pointing cursor and the receiver in the vertical direction, wherein the distance between the ray-pointing cursor and the receiver in the vertical direction is equal to the distance between the photosensitive surface of the receiver and the first surface.

[0015] In the field-of-view detection method for a one-dimensional TOF detector according to this application, determining the field-of-view of the receiver of the one-dimensional TOF detector in the first direction based on the positional relationship between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the first direction includes: determining the field-of-view of the receiver of the one-dimensional TOF detector in the first direction based on the detection distance between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the first direction, and the distance between the ray-pointing cursor and the receiver in the vertical direction, wherein the distance between the ray-pointing cursor and the receiver in the vertical direction is equal to the distance between the photosensitive surface of the receiver and the first surface.

[0016] In the field-of-view detection method for a one-dimensional TOF detector according to this application, moving the line cursor in the first plane along the second direction includes: maintaining the length extension direction of the line cursor perpendicular to the second direction.

[0017] In the field-of-view detection method for a one-dimensional TOF detector according to this application, determining the field-of-view of the receiver of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the second direction includes: determining the field-of-view of the receiver of the one-dimensional TOF detector in the second direction based on the distance between the ray-pointing cursor and the receiver in the second direction when the ray-pointing cursor is just detected in the second direction, and the distance between the ray-pointing cursor and the receiver in the vertical direction.

[0018] In the field-of-view detection method for a one-dimensional TOF detector according to this application, determining the field-of-view angle of the receiver of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the second direction includes: determining the field-of-view angle of the receiver of the one-dimensional TOF detector in the second direction based on the detection distance between the ray-pointing cursor and the receiver when the ray-pointing cursor is just detected in the second direction, and the distance between the ray-pointing cursor and the receiver in the vertical direction.

[0019] In the field-of-view detection method for a one-dimensional TOF detector according to this application, moving the linear cursor along a first direction within the first plane, such that the linear cursor gradually approaches the receiving end within the first plane along the first direction, until the linear cursor is just detected by the receiving end in the first direction, includes: moving a first cursor among the linear cursors along the positive direction of the first direction within the first plane, such that the first cursor gradually approaches the receiving end within the first plane along the positive direction of the first direction, until the first cursor is just detected in the positive direction of the first direction; and moving a second cursor among the linear cursors along the negative direction of the first direction opposite to the positive direction of the first direction within the first plane, such that the linear cursor gradually approaches the receiving end within the first plane along the positive direction of the first direction, until the first cursor is just detected in the positive direction of the first direction; and moving a second cursor among the linear cursors along the negative direction of the first direction within the first plane, such that the linear cursor gradually approaches the receiving end along the positive direction of the first direction, until the linear cursor is just detected by the receiving end in the positive direction of the first direction; The second cursor in the marker gradually approaches the receiving end in the negative direction of the first direction within the first plane until the second cursor is just detected in the negative direction of the first direction; based on the positional relationship between the line cursor and the receiving end when the line cursor is just detected in the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined, including: based on the positional relationship between the first cursor and the receiving end when the first cursor is just detected in the positive direction of the first direction, and the positional relationship between the second cursor and the receiving end when the second cursor is just detected in the negative direction of the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined.

[0020] In the field-of-view detection method for a one-dimensional TOF detector according to this application, moving the linear cursor along a second direction within a first surface, such that the linear cursor gradually approaches the receiving end within the first surface along the second direction, until the linear cursor is just detected by the receiving end in the second direction, includes: moving a third cursor among the linear cursors along the positive direction of the second direction within the first surface, such that the third cursor gradually approaches the receiving end within the first surface along the positive direction of the second direction, until the third cursor is just detected in the positive direction of the second direction; and moving a fourth cursor among the linear cursors along the negative direction of the second direction, opposite to the positive direction of the second direction, within the first surface, such that the third cursor gradually approaches the receiving end within the first surface along the positive direction of the second direction, until the third cursor is just detected in the positive direction of the second direction; and moving a fourth cursor among the linear cursors along the negative direction of the second direction, opposite to the positive direction of the second direction, such that the third cursor gradually approaches the receiving end within the first surface along the positive direction of the second direction, until the third cursor is just detected by the receiving end in the positive direction of the second direction. The four cursors gradually approach the receiver along the negative direction of the second direction within the first plane until the fourth cursor is just detected in the negative direction of the second direction. Based on the relative positional relationship between the cursor and the receiver when the cursor is just detected in the second direction, the field of view of the receiver of the one-dimensional TOF detector in the second direction is determined, including: based on the relative positional relationship between the third cursor and the receiver when the third cursor is just detected in the positive direction of the second direction, and the relative positional relationship between the fourth cursor and the receiver when the fourth cursor is just detected in the negative direction of the second direction, the field of view of the receiver of the one-dimensional TOF detector in the second direction is determined.

[0021] According to another aspect of this application, a field-of-view detection device for a one-dimensional TOF detector is provided, comprising:

[0022] The first frame has a first face;

[0023] A second frame having a second surface opposite to the first frame, wherein the second surface is opposite to and parallel to the first surface;

[0024] A line cursor that can be movably positioned on the first surface; and

[0025] An interface is provided on the second side, which is adapted to connect to the receiver of a one-dimensional TOF detector.

[0026] In the field-of-view detection device for a one-dimensional TOF detector according to this application, the center of the interface is aligned with the center of the first surface.

[0027] In the field-of-view detection device for a one-dimensional TOF detector according to this application, the line cursor includes a first cursor, a second cursor, a third cursor, and a fourth cursor. The first frame includes a first border extending along a first direction, a second border adjacent to the first border and extending along a second direction, a third border opposite to and parallel to the first border, and a fourth border opposite to and parallel to the second border, such that the first cursor and / or the second cursor extending between the first border and the third border are adapted to move along the first direction, and the third cursor and / or the fourth cursor extending between the second border and the fourth border are adapted to move along the second direction.

[0028] The further objectives and advantages of this application will become fully apparent from the following description and accompanying drawings.

[0029] These and other objects, features and advantages of this application are fully apparent from the following detailed description, the accompanying drawings and the claims. Attached Figure Description

[0030] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:

[0031] Figure 1 The figure shows a schematic diagram of a field-of-view detection device for a one-dimensional TOF detector according to an embodiment of this application.

[0032] Figure 2 The figure shows a schematic flowchart of a field-of-view detection method for a one-dimensional TOF detector according to an embodiment of this application.

[0033] Figure 3A The illustration shows one of the process schematic diagrams of a field-of-view detection device for a one-dimensional TOF detector according to an embodiment of this application.

[0034] Figure 3B The illustration shows a second schematic diagram of the process of a field-of-view detection device for a one-dimensional TOF detector according to an embodiment of this application. Detailed Implementation

[0035] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0036] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0037] While ordinal numbers such as "first," "second," etc., will be used to describe various components, this does not limit which components are used. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0039] Summary of application

[0040] As mentioned above, the receiving field of view of a distance detector is an important performance parameter. Currently, the receiving field of view of a distance detector is mainly detected through imaging (i.e., image output). Specifically, firstly, the object is imaged through the receiving end of the distance detector to obtain an image of the object; then, the field of view of the receiving end of the distance detector is obtained by analyzing the image of the object.

[0041] Therefore, detecting the receiving field of view of a distance detector through imaging is generally suitable for devices with two-dimensional or three-dimensional imaging capabilities. However, depending on the application scenario and actual needs, some distance detectors have abandoned the image output function and cannot detect their receiving field of view through imaging. For example, a one-dimensional TOF detector cannot acquire two-dimensional or three-dimensional images of the target at its receiver. Consequently, a one-dimensional TOF detector cannot easily obtain its receiving field of view by using an area array photosensitive element for two-dimensional or three-dimensional imaging.

[0042] Based on this, the inventors of this application propose that the receiving field of view of a one-dimensional TOF detector can be detected by scanning. Specifically, in the process of detecting the field of view of a one-dimensional TOF detector, the receiving field of view is mainly detected by detecting the maximum field of view that the receiving end of the one-dimensional TOF detector can receive. Therefore, in the process of detecting a target object, as long as the farthest detection distance between the target object and the receiving end of the one-dimensional TOF detector is determined, the receiving field of view of the one-dimensional TOF detector can be determined. Further, the target object can be moved along a specific direction (e.g., a line cursor) to gradually approach the receiving end of the one-dimensional TOF detector along that specific direction. When the target object is just detected, it means that at this time, the distance between the target object and the receiving end of the one-dimensional TOF detector is the farthest detection distance between the target object and the receiving end of the one-dimensional TOF detector. Based on the positional relationship between the target object and the receiving end of the one-dimensional TOF detector at this time, the field of view of the receiving end can be obtained, that is, the receiving field of view of the one-dimensional TOF detector.

[0043] Accordingly, according to one aspect of this application, a method for field of view detection is proposed, comprising: providing a field of view detection device having a first surface and a second surface that are opposite and parallel to each other, wherein the field of view detection device comprises: a line cursor disposed on the first surface and an interface disposed on the second surface; inserting a receiving end of a one-dimensional TOF detector into the interface such that the photosensitive surface of the receiving end is coplanar with the first surface; moving the line cursor in the first surface along a first direction such that the line cursor gradually approaches the receiving end in the first surface along the first direction until the line cursor is just detected by the receiving end in the first direction; and determining the field of view of the receiving end of the one-dimensional TOF detector in the first direction based on the positional relationship between the line cursor and the receiving end when the line cursor is just detected in the first direction.

[0044] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0045] Schematic field angle detection method

[0046] like Figures 1 to 3BAs shown, a field-of-view detection method for a one-dimensional TOF detector according to an embodiment of this application is illustrated. The method includes: S110, providing a field-of-view detection device having a first surface and a second surface that are opposite and parallel to each other, wherein the field-of-view detection device includes: a line cursor disposed on the first surface and an interface disposed on the second surface; S120, inserting the receiving end of the one-dimensional TOF detector into the interface, such that the photosensitive surface of the receiving end is coplanar with the first surface; S130, moving the line cursor within the first surface along a first direction, such that the line cursor gradually approaches the receiving end within the first surface along the first direction until the line cursor is just detected by the receiving end in the first direction; and S140, determining the field-of-view angle of the receiving end of the one-dimensional TOF detector in the first direction based on the positional relationship between the line cursor and the receiving end when the line cursor is just detected in the first direction.

[0047] In step S110, a field-of-view detection device 100 with a first surface 101 and a second surface 102 that are opposite and parallel is provided. The field-of-view detection device 100 includes a line cursor 30 disposed on the first surface 101 and an interface 40 disposed on the second surface 102. Specifically, as shown... Figure 1 As shown, the field of view detection device 100 includes a first frame 10 and a second frame 20 opposite to the first frame 10. The first frame 10 includes at least two first frame borders, which define a first surface 101 with a hollow structure. The second frame 20 includes at least two second frame 20 borders, which define a second surface 102. The first surface 101 and the second surface 102 are opposite and parallel.

[0048] The field-of-view detection device 100 further includes a chord pointer 30 movably disposed on the first surface 101, such that the chord pointer 30 is adapted to be moved along a specific direction within the first surface 101. In some embodiments of this application, the chord pointer 30 is detachably disposed on the first surface 101.

[0049] The field of view further includes an interface 40 disposed on the second surface 102. The interface 40 is adapted to be electrically connected to a power source and is adapted to be plugged into the receiver 200 of a one-dimensional TOF detector to power on the one-dimensional TOF detector and maintain its position. Preferably, the center of the interface 40 is aligned with the center of the first surface 101, that is, the line connecting the center of the interface 40 and the center of the first surface 101 is perpendicular to the first surface 101, so that the center of the photosensitive surface of the receiver 200 of the one-dimensional TOF detector plugged into the interface 40 is aligned with the center of the first surface 101.

[0050] In step S120, the receiver 200 of the one-dimensional TOF detector is plugged into the interface 40, so that the photosensitive surface of the receiver 200 is coplanar with the second surface 102. In this embodiment, the specific implementation method for achieving coplanarity between the photosensitive surface of the receiver 200 and the second surface 102 is not limited to this application.

[0051] In a specific example of this application, the inner wall of the interface 40 is provided with a first locking structure aligned with the second surface 102. The outer wall of the receiving end 200 of the one-dimensional TOF detector is provided with a second locking structure aligned with the photosensitive surface of the receiving end 200 of the one-dimensional TOF detector. The second locking structure is adapted to be locked to the first locking structure, so that when the receiving end 200 of the one-dimensional TOF detector is inserted into the interface 40, the photosensitive surface of the receiving end 200 is coplanar with the second surface 102.

[0052] In another specific example of this application, the outer wall of the receiver 200 of the one-dimensional TOF detector is provided with a second locking structure aligned with the photosensitive surface of the receiver 200 of the one-dimensional TOF detector. The second locking structure extends outward from the outer wall of the receiver 200 of the one-dimensional TOF detector. The interface 40 has a first end near the first surface 101 in the length direction and a second end formed on the second surface 102. The cross-sectional area of ​​the second end of the interface 40 is smaller than the cross-sectional area of ​​the second locking structure. Thus, the second end of the interface 40 forms a first locking structure suitable for cooperating with the second locking structure, so that when the receiver 200 of the one-dimensional TOF detector is inserted into the interface 40, the second locking structure aligned with the photosensitive surface of the receiver 200 is locked onto the first locking structure formed on the second surface 102, and the photosensitive surface of the receiver 200 of the one-dimensional TOF detector is coplanar with the second surface 102.

[0053] In step S130, the line cursor 30 is moved within the first surface 101 along a first direction, such that the line cursor 30 gradually approaches the receiving end 200 within the first surface 101 along the first direction, until the line cursor 30 is just detected by the receiving end 200 in the first direction. Specifically, during the movement of the line cursor 30 within the first surface 101 along the first direction, the length extension direction of the line cursor 30 is kept perpendicular to the first direction.

[0054] When the line cursor 30 is detected exactly in the first direction, that is, when the line cursor 30 is detected for the first time in the first direction, the distance between the line cursor 30 and the receiving end 200 is the farthest detection distance between the line cursor 30 and the receiving end 200.

[0055] like Figure 1 As shown in a specific example of this application, the at least two first frame borders include a first border extending along a first direction, a second border adjacent to the first border and extending along a second direction, a third border adjacent to the second border and opposite to and parallel to the first border, and a fourth border extending between the first border and the third border and opposite to and parallel to the second border. Accordingly, each pair of adjacent first frame borders among the first border, the second border, the third border, and the fourth border is perpendicular to each other.

[0056] like Figure 3A As shown, in this specific example, the line cursor 30 extends between the first border and the third border. During the movement of the line cursor 30 within the first surface 101 along a first direction, the length extension direction of the line cursor 30 is perpendicular to the first direction, and the length extension direction of the first border is consistent with the first direction. The first border and the third border act as guides, causing the line cursor 30 to be moved within the first surface 101 from the second border along the extension direction of the first border (i.e., the first direction) to detect the field of view of the one-dimensional TOF detector in the first direction.

[0057] Furthermore, when the line cursor 30 approaches the receiving end 200 of the one-dimensional TOF detector along the first direction within the first surface 101, the point on the line cursor 30 that is closest to the receiving end 200 of the one-dimensional TOF detector along its length direction is the point aligned with the center point of the photosensitive surface in the first direction. The line connecting the orthographic projection of the center point of the photosensitive surface onto the first surface 101 and this point is consistent with the first direction. The distance between the orthographic projection of the center point of the photosensitive surface onto the first surface 101 and this point is the distance between the receiving end 200 and the line cursor 30 in the first direction. The straight-line distance between the center point of the photosensitive surface and this point is the detection distance between the line cursor 30 and the receiving end 200.

[0058] Of course, the length of the line cursor 30 can be greater than the distance between the first border and the third border. The line cursor 30 can be controlled to move in the first direction within the first surface 101 by other means, such as by driving the line cursor 30 to move in the first direction by a driver.

[0059] In some embodiments of this application, the receiver 200 is adapted to be communicatively connected to the display unit, and when the display unit emits a prompt signal, it indicates that the target object has been detected. For example, when the display unit displays distance data between the target object and the projector, it indicates that the target object has been detected; as another example, when the display unit emits a prompt sound, it indicates that the target object has been detected; yet another example, when the display unit emits light of a preset color, it indicates that the target object has been detected. These are not limited to the scope of this application.

[0060] Furthermore, the first direction includes the positive direction of the first direction and the opposite direction of the positive direction of the first direction. In this embodiment, the line cursor 30 can be moved along the positive direction of the first direction, or along the negative direction of the first direction, or simultaneously along both the positive and negative directions of the first direction. This is not limited to the present application.

[0061] Accordingly, in a specific example of this application, the line cursor 30 includes a first cursor and a second cursor. During the movement of the line cursor 30 within the first surface 101 along a first direction, the length extension directions of the first cursor and the second cursor are consistent with the first direction. Step S130 includes: moving the first cursor in the line cursor 30 within the first surface 101 along the positive direction of the first direction, so that the first cursor gradually approaches the receiving end 200 within the first surface 101 along the positive direction of the first direction, until the first cursor is just detected in the positive direction of the first direction; and moving the second cursor in the line cursor 30 within the first surface 101 along the negative direction of the first direction, opposite to the positive direction of the first direction, so that the second cursor in the line cursor 30 gradually approaches the receiving end 200 within the first surface 101 along the negative direction of the first direction, until the second cursor is just detected in the negative direction of the first direction.

[0062] In step S140, based on the positional relationship between the line cursor 30 and the receiving end 200 when the line cursor 30 is just detected in the first direction, the field of view of the receiving end 200 of the one-dimensional TOF detector in the first direction is determined. Specifically, when the first cursor and / or the second cursor of the line cursor 30 is just detected in the first direction, the detection distance between the first cursor and / or the second cursor of the line cursor 30 and the receiving end 200 of the one-dimensional TOF detector is the farthest detection distance between the first cursor and / or the second cursor of the line cursor 30 and the one-dimensional TOF detector in the first direction. At this time, the field of view of the receiving end 200 of the one-dimensional TOF detector in the first direction can be determined according to the positional relationship between the line cursor 30 and the receiving end 200.

[0063] It is worth mentioning that the field of view detection method applicable to one-dimensional TOF detectors can complete the detection of the field of view without capturing a multi-dimensional image of the target object, which relatively reduces the difficulty of field of view detection.

[0064] Furthermore, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be determined based on the positional relationship between the first cursor and the receiver 200 when the first cursor is just detected in the positive direction of the first direction, and the positional relationship between the second cursor and the receiver 200 when the second cursor is just detected in the negative direction of the first direction.

[0065] Furthermore, in some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction (i.e., the receiving field of view of the one-dimensional TOF detector in the first direction) can be determined based on the distance between the line cursor 30 and the receiver 200 in the first direction when the line cursor 30 is just detected in the first direction, and the distance between the line cursor 30 and the receiver 200 in the vertical direction, wherein the distance between the line cursor 30 and the receiver 200 in the vertical direction is equal to the distance between the photosensitive surface of the receiver 200 and the first surface 101.

[0066] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be calculated using the following formula:

[0067] FOV1 = arctan(d1 / h) + arctan(d2 / h), where FOV1 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction, d1 represents the distance between the first cursor and the receiver 200 in the first direction when the first cursor is just detected in the positive direction of the first direction, d2 represents the distance between the second cursor and the receiver 200 in the first direction when the second cursor is just detected in the negative direction of the first direction, and h represents the distance between the photosensitive surface of the receiver 200 and the first surface 101.

[0068] like Figure 3A As shown in a specific example of this application, the field of view detection device 100 has a cuboid structure. The cross-sectional shape of the first frame 10 is rectangular. The first frame 10 includes a first border extending along a first direction, a second border adjacent to the first border and extending along a second direction, a third border opposite to and parallel to the first border, and a fourth border opposite to and parallel to the second border. The four endpoints of the first frame 10 are labeled A, B, C, and D, respectively. The cross-sectional shape of the second frame 20 is rectangular, and the four endpoints of the second frame 20 correspond to the four endpoints of the first frame 10, and are labeled a, b, c, and d, respectively.

[0069] In this specific example, during the movement of the line cursor 30 along the first direction within the first surface 101, the center of the photosensitive surface of the receiving end 200 is aligned with the center of the first surface 101. That is, the line connecting the center of the photosensitive surface of the receiving end 200 and the center of the first surface 101 is perpendicular to the first surface 101. In other words, the position of the orthographic projection of the center point of the photosensitive surface of the receiving end 200 onto the first surface 101 coincides with the position of the center point of the first surface 101.

[0070] In this specific example, the first cursor can be moved from the second border along the first direction within the first surface 101 until the first cursor is just detected by the receiver 200 in the first direction. The center point of the first cursor is labeled G1. The field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction can be calculated by the following formula:

[0071] FOV11 = arctan[(0.5*AB-G1B) / Aa], where FOV11 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction, AB represents the length of the first frame, G1B represents the distance between the first cursor and the endpoint B in the first direction, and Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction.

[0072] The second cursor can be moved along the first direction from the fourth border within the first surface 101 until it is just detected by the receiver 200 in the first direction. The center point of the second cursor is labeled G2. The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction can be calculated by the following formula:

[0073] FOV12 = arctan[(0.5*AB-G2A) / Aa], where FOV12 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction, AB represents the length of the first frame, G2A represents the distance between the second cursor and endpoint A in the first direction, and Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction.

[0074] The field of view of the receiver 200 of the one-dimensional TOF detector in the first direction is equal to the sum of the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction and the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction. When it is determined that the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction is equal to the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction, only the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction needs to be calculated. Alternatively, the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction is equal to twice the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction, or twice the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction.

[0075] In some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be determined based on the detection distance between the ray pointer 30 and the receiver 200 when the ray pointer 30 is just detected in the first direction, and the distance between the ray pointer 30 and the receiver 200 in the vertical direction. The distance between the ray pointer 30 and the receiver 200 in the vertical direction is equal to the distance between the photosensitive surface of the receiver 200 and the first surface 101.

[0076] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be calculated using the following formula:

[0077] FOV1 = arccos(h / D1) + arccos(h / D2), where FOV1 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction, h represents the distance between the photosensitive surface of the receiver 200 and the first surface 101, D1 represents the detection distance between the first cursor and the receiver 200 when the first cursor is just detected in the positive direction of the first direction, and D2 represents the detection distance between the second cursor and the receiver 200 when the second cursor is just detected in the negative direction of the first direction.

[0078] like Figure 3A As shown, in a specific example of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction can be calculated by the following formula:

[0079] FOV11 = arccos(Aa / D1), where FOV11 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction, Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction, and D1 represents the detection distance between the first cursor and the receiver 200 when the first cursor is just detected in the first direction.

[0080] The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction can be calculated using the following formula:

[0081] FOV12 = arccos(Aa / D2), where FOV12 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction, Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction, and D2 represents the detection distance between the second cursor and the receiver 200 when the second cursor is just detected in the first direction.

[0082] In some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be determined based on the detection distance between the line cursor 30 and the receiver 200 when the line cursor 30 is just detected in the first direction, and the distance between the line cursor 30 and the receiver 200 in the first direction.

[0083] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction can be calculated using the following formula:

[0084] FOV1 = arcsin(d1 / D1) + arcsin(d1 / D2), where FOV1 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the first direction, d1 represents the distance between the first cursor and the receiver 200 in the first direction when the first cursor is just detected in the positive direction of the first direction, d2 represents the distance between the second cursor and the receiver 200 in the first direction when the second cursor is just detected in the negative direction of the first direction, D1 represents the detection distance between the first cursor and the receiver 200 when the first cursor is just detected in the positive direction of the first direction, and D2 represents the detection distance between the second cursor and the receiver 200 when the second cursor is just detected in the negative direction of the first direction.

[0085] like Figure 3AAs shown, in a specific example of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction can be calculated by the following formula:

[0086] FOV11 = arcsin[(0.5*AB-G1B) / D1], where FOV11 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the first direction, AB represents the length of the first frame, G1B represents the distance between the first cursor and endpoint B in the first direction, and D1 represents the detection distance between the first cursor and the receiver 200 when the first cursor is just detected in the first direction.

[0087] The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction can be calculated using the following formula:

[0088] FOV12 = arcsin[(0.5*AB-G2A) / D2], where FOV12 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the first direction, AB represents the length of the first frame, G2A represents the distance between the second cursor and endpoint A in the first direction, and D2 represents the detection distance between the second cursor and the receiver 200 when the first cursor is just detected in the first direction.

[0089] In this embodiment of the application, the field-of-view detection method for a one-dimensional TOF detector can also detect the field-of-view angle of the receiving end 200 of the one-dimensional TOF detector in a second direction perpendicular to the first direction. Accordingly, the field-of-view detection method for a one-dimensional TOF detector further includes: S150, moving the ray-guided cursor 30 within the first surface 101 along the second direction, such that the ray-guided cursor 30 gradually approaches the receiving end 200 within the first surface 101 along the second direction, until the ray-guided cursor 30 is just detected by the receiving end 200 in the second direction, wherein the second direction is perpendicular to the first direction; and S160, determining the field-of-view angle of the receiving end 200 of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the ray-guided cursor 30 and the receiving end 200 when the ray-guided cursor 30 is just detected in the second direction.

[0090] In step S150, the line cursor 30 is moved along the second direction within the first surface 101, so that the line cursor 30 gradually approaches the receiving end 200 within the first surface 101 along the second direction, until the line cursor 30 is just detected by the receiving end 200 in the second direction. Specifically, during the process of moving the line cursor 30 within the first surface 101 along the second direction, the length extension direction of the line cursor 30 is kept perpendicular to the second direction.

[0091] When the line cursor 30 is detected exactly in the second direction, that is, when the line cursor 30 is detected for the first time in the second direction, the distance between the line cursor 30 and the receiving end 200 is the farthest detection distance between the line cursor 30 and the receiving end 200.

[0092] like Figure 3B As shown in a specific example of this application, the line cursor 30 extends between the second border and the fourth border. During the movement of the line cursor 30 within the first surface 101 along the second direction, the length extension direction of the line cursor 30 is perpendicular to the second direction. The length extension directions of both the second and fourth borders are consistent with the second direction. The second and fourth borders act as guides, causing the line cursor 30 to move within the first surface 101 from the second border along the extension direction of the second border (i.e., the second direction) to detect the field of view of the one-dimensional TOF detector in the second direction.

[0093] When the line cursor 30 approaches the receiving end 200 of the one-dimensional TOF detector along the second direction within the first surface 101, the point on the line cursor 30 that is closest to the receiving end 200 of the one-dimensional TOF detector along its length direction is the point aligned with the center point of the photosensitive surface in the second direction. The line connecting the center point of the photosensitive surface in the orthographic projection of the first surface 101 and this point is consistent with the second direction. The distance between the center point of the photosensitive surface in the orthographic projection of the first surface 101 and this point is the distance between the receiving end 200 and the line cursor 30 in the second direction. The straight-line distance between the center point of the photosensitive surface and this point is the detection distance between the line cursor 30 and the receiving end 200.

[0094] Of course, the length of the line cursor 30 can be greater than the distance between the second border and the fourth border. The line cursor 30 can be controlled to move in the second direction within the first surface 101 by other means, for example, by driving the line cursor 30 to move in the second direction by a driver.

[0095] Furthermore, the second direction includes the positive direction of the second direction and the opposite direction of the positive direction of the second direction. In this embodiment, the line cursor 30 can be moved along the positive direction of the second direction, or along the negative direction of the second direction, or simultaneously along both the positive and negative directions of the second direction. This is not limited to the present application.

[0096] Accordingly, in a specific example of this application, the line cursor 30 further includes a third cursor and a fourth cursor. During the movement of the line cursor 30 within the first surface 101 along the second direction, the length extension directions of the third cursor and the fourth cursor are consistent with the second direction. Step S150 includes: moving the third cursor in the line cursor 30 within the first surface 101 along the positive direction of the second direction, such that the third cursor gradually approaches the receiving end 200 within the first surface 101 along the positive direction of the second direction, until the third cursor is just detected in the positive direction of the second direction; and moving the fourth cursor in the line cursor 30 within the first surface 101 along the negative direction of the second direction, opposite to the positive direction of the second direction, such that the fourth cursor gradually approaches the receiving end 200 within the first surface 101 along the negative direction of the second direction, until the fourth cursor is just detected in the negative direction of the second direction.

[0097] In step S160, based on the relative positional relationship between the line cursor 30 and the receiving end 200 when the line cursor 30 is just detected in the second direction, the field of view of the receiving end 200 of the one-dimensional TOF detector in the second direction is determined. Specifically, when the third and / or fourth cursors of the line cursor 30 are just detected in the second direction, the detection distance between the third and / or fourth cursors of the line cursor 30 and the receiving end 200 of the one-dimensional TOF detector is the farthest detection distance between the third and / or fourth cursors of the line cursor 30 and the one-dimensional TOF detector in the second direction. At this time, the field of view of the receiving end 200 of the one-dimensional TOF detector in the second direction can be determined according to the positional relationship between the line cursor 30 and the receiving end 200.

[0098] Furthermore, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be determined based on the positional relationship between the third cursor and the receiver 200 when the third cursor is just detected in the positive direction of the second direction, and the positional relationship between the fourth cursor and the receiver 200 when the fourth cursor is just detected in the negative direction of the second direction.

[0099] Furthermore, in some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction (i.e., the receiving field of view of the one-dimensional TOF detector in the second direction) can be determined based on the distance between the line cursor 30 and the receiver 200 in the second direction when the line cursor 30 is just detected in the second direction, and the distance between the line cursor 30 and the receiver 200 in the vertical direction.

[0100] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be calculated using the following formula:

[0101] FOV2 = arctan(d3 / h) + arctan(d4 / h), where FOV1 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction, d3 represents the distance between the third cursor and the receiver 200 in the second direction when the third cursor is just detected in the positive direction of the second direction, d4 represents the distance between the fourth cursor and the receiver 200 in the second direction when the fourth cursor is just detected in the negative direction of the second direction, and h represents the distance between the photosensitive surface of the receiver 200 and the first surface 101.

[0102] like Figure 3B As shown, in a specific example of this application, the center point of the third cursor is labeled K1, and the center point of the fourth cursor is labeled K2. The field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction can be calculated using the following formula:

[0103] FOV21 = arctan[(0.5*AD-K1A) / Aa], where FOV21 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction, AD represents the length of the fourth frame, K1A represents the distance between the third cursor and endpoint A in the second direction, and Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction.

[0104] The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction can be calculated using the following formula:

[0105] FOV22 = arctan[(0.5*AD-K2D) / Aa], where FOV22 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction, AD represents the length of the fourth frame, K2D represents the distance between the fourth cursor and the endpoint D in the second direction, and Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction.

[0106] The field of view of the receiver 200 of the one-dimensional TOF detector in the second direction is equal to the sum of the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction and the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction. When it is determined that the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction is equal to the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction, only the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction needs to be calculated. Alternatively, the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction is equal to twice the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction, or twice the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction.

[0107] In some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be determined based on the detection distance between the ray pointer 30 and the receiver 200 when the ray pointer 30 is just detected in the second direction, and the distance between the ray pointer 30 and the receiver 200 in the vertical direction. The distance between the ray pointer 30 and the receiver 200 in the vertical direction is equal to the distance between the photosensitive surface of the receiver 200 and the first surface 101.

[0108] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be calculated using the following formula:

[0109] FOV2 = arccos(h / D3) + arccos(h / D4), where FOV2 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction, h represents the vertical distance between the line cursor 30 and the receiver 200, D3 represents the detection distance between the third cursor and the receiver 200 when the third cursor is just detected in the positive direction of the second direction, and D4 represents the detection distance between the fourth cursor and the receiver 200 when the fourth cursor is just detected in the negative direction of the second direction.

[0110] like Figure 3B As shown, in a specific example of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction can be calculated by the following formula:

[0111] FOV21 = arccos(Aa / D3), where FOV21 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction, Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction, and D3 represents the detection distance between the third cursor and the receiver 200 when the third cursor is just detected in the second direction.

[0112] The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction can be calculated using the following formula:

[0113] FOV22 = arccos(Aa / D4), where FOV22 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction, Aa represents the distance between the first surface 101 and the second surface 102 in the vertical direction, and D4 represents the detection distance between the fourth cursor and the receiver 200 when the fourth cursor is just detected in the second direction.

[0114] In some embodiments of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be determined based on the detection distance between the line cursor 30 and the receiver 200 when the line cursor 30 is just detected in the second direction, and the distance between the line cursor 30 and the receiver 200 in the second direction.

[0115] Accordingly, the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction can be calculated using the following formula:

[0116] FOV2 = arcsin(d3 / D3) + arcsin(d3 / D3), where FOV2 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the second direction, d3 represents the distance between the third cursor and the receiver 200 in the second direction when the third cursor is just detected in the positive direction of the second direction, d4 represents the distance between the fourth cursor and the receiver 200 in the second direction when the fourth cursor is just detected in the negative direction of the second direction, D3 represents the detection distance between the third cursor and the receiver 200 when the third cursor is just detected in the positive direction of the second direction, and D4 represents the detection distance between the fourth cursor and the receiver 200 when the fourth cursor is just detected in the negative direction of the second direction.

[0117] like Figure 3B As shown, in a specific example of this application, the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction can be calculated by the following formula:

[0118] FOV21 = arcsin[(0.5*AD-K1A) / D1], where FOV21 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the positive direction of the second direction, AD represents the length of the fourth frame, K1A represents the distance between the third cursor and endpoint A in the second direction, and D1 represents the detection distance between the third cursor and the receiver 200 when the third cursor is just detected in the second direction.

[0119] The field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction can be calculated using the following formula:

[0120] FOV22 = arcsin[(0.5*AD-K2D) / D2], where FOV22 represents the field of view of the receiver 200 of the one-dimensional TOF detector in the negative direction of the second direction, AD represents the length of the fourth frame, K2D represents the distance between the fourth cursor and the endpoint D in the second direction, and D2 represents the detection distance between the fourth cursor and the receiver 200 when the third cursor is just detected in the second direction.

[0121] In summary, the field-of-view detection method for a one-dimensional TOF detector based on the embodiments of this application has been clarified. The field-of-view detection method for a one-dimensional TOF detector can detect the receiving field-of-view of the distance detector by scanning, so as to be applicable to the detection of the receiving field-of-view of a one-dimensional TOF detector.

[0122] Schematic field angle detection apparatus

[0123] According to another aspect of this application, a field-of-view detection device 100 for a one-dimensional TOF detector is also provided, such as... Figure 1 As shown, the field-of-view detection device 100 for a one-dimensional TOF detector is explained. The field-of-view detection device 100 for a one-dimensional TOF detector includes: a first frame 10 having a first surface 101, a second frame 20 opposite to the first frame 10 and having a second surface 102, a line cursor 30 movably disposed on the first surface 101, and an interface 40 disposed on the second surface 102 and adapted to be inserted into the receiver end 200 of the one-dimensional TOF detector.

[0124] In this embodiment of the application, the first frame 10 includes at least two first frame borders, the at least two first frame borders defining a first surface 101 with a hollow structure, the second frame 20 includes at least two second frame 20 borders, the at least two second frame 20 borders defining a second surface 102, and the first surface 101 and the second surface 102 are opposite and parallel.

[0125] In a specific example of this application, the at least two first frame borders include a first border, a second border, a third border, and a fourth border, which define a first surface 101 having a hollow structure.

[0126] In a specific example of this application, the field-of-view detection device 100 for a one-dimensional TOF detector has a cuboid structure. The first frame 10 has a rectangular cross-section and includes a first border extending along a first direction, a second border adjacent to the first border and extending along a second direction, a third border opposite to and parallel to the first border, and a fourth border opposite to and parallel to the second border. The second frame 20 has the same cross-sectional shape and dimensions as the first frame 10, and the four borders of the second frame 20 define a second surface 102 corresponding to the first surface 101.

[0127] In this specific example, the line cursor 30 includes a first cursor, a second cursor, a third cursor, and a fourth cursor. The cuboid structure makes the first cursor and / or the second cursor extending between the first border and the third border of the line cursor 30 suitable for moving along the first direction, and makes the third cursor and / or the fourth cursor extending between the second border and the fourth border of the line cursor 30 suitable for moving along the second direction.

[0128] In other examples of this application, the first frame 10 and the second frame 20 of the field-of-view detection device 100 for a one-dimensional TOF detector can be implemented in other ways. For example, the first surface 101 of the first frame 10 is opposite to and parallel to the second surface 102 of the second frame 20. However, the shape and size of the cross-section of the second frame 20 are different from those of the first frame 10, which is not limited to this application.

[0129] The interface 40 is adapted to be communicatively connected to a power source to power on the one-dimensional TOF detector. Preferably, the center of the interface 40 is aligned with the center of the first surface 101, such that when the receiver 200 of the one-dimensional TOF detector is plugged into the interface 40, the center of the photosensitive surface of the receiver 200 is aligned with the center of the first surface 101.

[0130] In some embodiments of this application, a locking structure is provided at the interface 40 to hold the receiving end 200 of the one-dimensional TOF detector, and to make the photosensitive surface of the receiving end 200 coplanar with the second surface 102 when the receiving end 200 of the one-dimensional TOF detector is plugged into the interface 40.

[0131] In a specific example of this application, the inner wall of the interface 40 is provided with a first locking structure aligned with the second surface 102, which is adapted to match a second locking structure disposed on the receiving end 200 of the one-dimensional TOF detector and flush with its photosensitive surface. The second locking structure is adapted to be locked to the first locking structure so that when the receiving end 200 of the one-dimensional TOF detector is inserted into the interface 40, the photosensitive surface of the receiving end 200 is coplanar with the second surface 102.

[0132] In another specific example of this application, the interface 40 has a first end near the first surface 101 in the length direction and a second end formed on the second surface 102. The cross-sectional area of ​​the second end of the interface 40 is smaller than the cross-sectional area of ​​the second locking structure disposed on the receiving end 200 of the one-dimensional TOF detector and flush with its photosensitive surface. Thus, the second end of the interface 40 forms a first locking structure suitable for cooperating with the second locking structure, so that when the receiving end 200 of the one-dimensional TOF detector is inserted into the interface 40, the second locking structure flush with the photosensitive surface of the receiving end 200 is locked into the first locking structure formed on the second surface 102, and the photosensitive surface of the receiving end 200 of the one-dimensional TOF detector is coplanar with the second surface 102.

[0133] In summary, the field-of-view detection device 100 for a one-dimensional TOF detector based on the embodiments of this application is explained. The field-of-view detection device 100 for a one-dimensional TOF detector is adapted to detect the receiving field of view of the distance detector by scanning, so as to be suitable for detecting the receiving field of view of a one-dimensional TOF detector.

[0134] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

Claims

1. A method for detecting the field of view of a one-dimensional TOF detector, characterized in that, include; A field of view detection device is provided having a first surface and a second surface that are opposite and parallel to each other, wherein the field of view detection device includes: a line cursor disposed on the first surface and an interface disposed on the second surface; The receiver of the one-dimensional TOF detector is plugged into the interface so that the photosensitive surface of the receiver is coplanar with the first surface. The line cursor is moved within the first surface along a first direction, such that the line cursor gradually approaches the receiving end within the first surface along the first direction, until the line cursor is just detected by the receiving end in the first direction; and Based on the positional relationship between the line cursor and the receiving end when the line cursor is just detected in the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined without acquiring two-dimensional and three-dimensional images.

2. The field-of-view detection method for a one-dimensional TOF detector according to claim 1, further comprising: The line cursor is moved along a second direction within the first surface, such that the line cursor gradually approaches the receiving end along the second direction within the first surface, until the line cursor is just detected by the receiving end in the second direction, wherein the second direction is perpendicular to the first direction; and Based on the relative positional relationship between the line cursor and the receiving end when the line cursor is just detected in the second direction, the field of view of the receiving end of the one-dimensional TOF detector in the second direction is determined.

3. The field-of-view detection method for a one-dimensional TOF detector according to claim 2, wherein, Moving the line cursor within the first surface along a first direction includes: maintaining the length extension direction of the line cursor moving along the first direction perpendicular to the first direction.

4. The field-of-view detection method for a one-dimensional TOF detector according to claim 3, wherein, Based on the positional relationship between the ray-pointing cursor and the receiving end when the ray-pointing cursor is just detected in the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined, including: based on the distance between the ray-pointing cursor moving along the first direction and the receiving end in the first direction when the ray-pointing cursor moving along the first direction is just detected in the first direction, and the distance between the ray-pointing cursor moving along the first direction and the receiving end in the vertical direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined, wherein the distance between the ray-pointing cursor and the receiving end in the vertical direction is equal to the distance between the photosensitive surface of the receiving end and the first surface.

5. The field-of-view detection method for a one-dimensional TOF detector according to claim 3, wherein, Based on the positional relationship between the ray-pointing cursor and the receiving end when the ray-pointing cursor is just detected in the first direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined, including: based on the detection distance between the ray-pointing cursor moving along the first direction and the receiving end when the ray-pointing cursor moving along the first direction is just detected in the first direction, and the distance between the ray-pointing cursor moving along the first direction and the receiving end in the vertical direction, the field of view of the receiving end of the one-dimensional TOF detector in the first direction is determined, wherein the distance between the ray-pointing cursor and the receiving end in the vertical direction is equal to the distance between the photosensitive surface of the receiving end and the first surface.

6. The field-of-view detection method for a one-dimensional TOF detector according to claim 4 or 5, wherein, Moving the line cursor within the first surface along the second direction includes: maintaining the length extension direction of the line cursor moving along the second direction perpendicular to the second direction.

7. The field-of-view detection method for a one-dimensional TOF detector according to claim 6, wherein, Based on the relative positional relationship between the ray-pointing cursor and the receiving end when the ray-pointing cursor is just detected in the second direction, the field of view angle of the receiving end of the one-dimensional TOF detector in the second direction is determined, including: based on the distance between the ray-pointing cursor moving along the second direction and the receiving end in the second direction when the ray-pointing cursor moving along the second direction is just detected in the second direction, and the distance between the ray-pointing cursor moving along the second direction and the receiving end in the vertical direction, the field of view angle of the receiving end of the one-dimensional TOF detector in the second direction is determined.

8. The field-of-view detection method for a one-dimensional TOF detector according to claim 6, wherein, Based on the relative positional relationship between the ray-pointing cursor and the receiving end when the ray-pointing cursor is just detected in the second direction, the field of view angle of the receiving end of the one-dimensional TOF detector in the second direction is determined, including: based on the detection distance between the ray-pointing cursor moving along the second direction and the receiving end when the ray-pointing cursor moving along the second direction is just detected in the second direction, and the distance between the ray-pointing cursor moving along the second direction and the receiving end in the vertical direction, the field of view angle of the receiving end of the one-dimensional TOF detector in the second direction is determined.

9. The field-of-view detection method for a one-dimensional TOF detector according to claim 2, wherein, Moving the line cursor within the first surface along a first direction, such that the line cursor gradually approaches the receiving end within the first surface along the first direction, until the line cursor is just detected by the receiving end in the first direction, includes: moving a first cursor among the line cursors within the first surface along the positive direction of the first direction, such that the first cursor gradually approaches the receiving end within the first surface along the positive direction of the first direction, until the first cursor is just detected in the positive direction of the first direction; and moving a second cursor among the line cursors within the first surface along the negative direction of the first direction, opposite to the positive direction of the first direction, such that the second cursor gradually approaches the receiving end within the first surface along the negative direction of the first direction, until the second cursor is just detected in the negative direction of the first direction. Determining the field of view of the receiver of the one-dimensional TOF detector in the first direction based on the positional relationship between the line cursor and the receiver when the line cursor is just detected in the first direction includes: determining the field of view of the receiver of the one-dimensional TOF detector in the first direction based on the positional relationship between the first cursor and the receiver when the first cursor is just detected in the positive direction of the first direction, and the positional relationship between the second cursor and the receiver when the second cursor is just detected in the negative direction of the first direction.

10. The field-of-view detection method for a one-dimensional TOF detector according to claim 2, wherein, Moving the line cursor within the first surface along a second direction, such that the line cursor gradually approaches the receiving end within the first surface along the second direction until the line cursor is just detected by the receiving end in the second direction, includes: moving a third cursor within the line cursor in the first surface along the positive direction of the second direction, such that the third cursor gradually approaches the receiving end within the first surface along the positive direction of the second direction until the third cursor is just detected in the positive direction of the second direction; and moving a fourth cursor within the line cursor in the first surface along the negative direction of the second direction, opposite to the positive direction of the second direction, such that the fourth cursor gradually approaches the receiving end within the first surface along the negative direction of the second direction until the fourth cursor is just detected in the negative direction of the second direction. Determining the field of view of the receiver of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the line cursor and the receiver when the line cursor is just detected in the second direction includes: determining the field of view of the receiver of the one-dimensional TOF detector in the second direction based on the relative positional relationship between the third cursor and the receiver when the third cursor is just detected in the positive direction of the second direction, and the relative positional relationship between the fourth cursor and the receiver when the fourth cursor is just detected in the negative direction of the second direction.

11. A field-of-view detection device for a one-dimensional TOF detector, characterized in that, include: The first frame has a first face; A second frame having a second surface opposite to the first frame, wherein the second surface is opposite to and parallel to the first surface; A line cursor that can be movably positioned on the first surface; and An interface is provided on the second side, which is adapted to connect to the receiver of a one-dimensional TOF detector; wherein the receiver of the one-dimensional TOF detector cannot generate two-dimensional or three-dimensional images.

12. The field-of-view detection device for a one-dimensional TOF detector according to claim 11, wherein, The center of the interface is aligned with the center of the first surface.

13. The field-of-view detection device for a one-dimensional TOF detector according to claim 11, wherein, The line cursor includes a first cursor, a second cursor, a third cursor, and a fourth cursor. The first frame includes a first border extending along a first direction, a second border adjacent to the first border and extending along a second direction, a third border opposite to and parallel to the first border, and a fourth border opposite to and parallel to the second border. The first cursor and the second cursor extend between the first border and the third border and are adapted to move along the first direction. The third cursor and the fourth cursor extend between the second border and the fourth border and are adapted to move along the second direction.

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