Visual field measurement system and measurement method, device, equipment, medium and product

Abstract

The present application relates to a visual field measurement system and measurement method, apparatus, computer equipment, storage medium and computer program product. By obtaining the distance from a laser irradiation point to a laser rangefinder, the inclination angle and rotation angle of the laser rangefinder, and determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the inclination angle and rotation angle of the laser rangefinder, the driver's visual field can be determined. The visual field of a commercial vehicle can be measured efficiently and quickly without manual operation, thereby realizing automated measurement of the visual field.

Description

Technical Field

[0001] The present application relates to the field of commercial vehicle performance testing, and in particular to a visual field measurement system and measurement method, apparatus, computer equipment, storage medium, and computer program product. Background Art

[0002] The comprehensive field of view of commercial vehicles is a crucial human-machine interface, closely related to driving safety and ride comfort. Commercial vehicles commonly have blind spots, which can easily lead to safety issues during actual use. Measuring the comprehensive field of view of commercial vehicle drivers is therefore crucial.

[0003] At present, visual field measurement tools and measurement technologies mostly use methods to simulate the driver's eye points and line of sight to measure the visual field of exterior rearview mirrors.

[0004] Since the types and number of vehicles that need to measure the field of view are large, the above measurement method is time-consuming and inefficient. Summary of the Invention

[0005] Based on this, it is necessary to provide a field of view measurement system and measurement method, device, computer equipment, computer-readable storage medium and computer program product that can efficiently and quickly measure the field of view of commercial vehicles in order to address the above technical problems.

[0006] In a first aspect, the present application provides a method for visual field measurement, the method comprising:

[0007] Obtain the distance from the laser irradiation point to the laser rangefinder; obtain the tilt angle and rotation angle of the laser rangefinder;

[0008] Determine the position of the laser irradiation point according to the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder;

[0009] The driver's field of view is determined based on the position of the laser irradiation point.

[0010] In one embodiment, the method of determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle, and the rotation angle of the laser rangefinder includes:

[0011] The projection point of the laser rangefinder on the ground is used as the reference point;

[0012] Determine the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder;

[0013] The position of the laser irradiation point is determined according to the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0014] In one embodiment, the method of determining the driver's field of view based on the position of the laser irradiation point includes:

[0015] obtaining the determined positions of the plurality of laser irradiation points;

[0016] The driver's field of view is determined based on the positions of multiple laser illumination points.

[0017] In one embodiment, the method of determining the driver's field of view based on the positions of the multiple laser illumination points includes:

[0018] The positions of the multiple laser irradiation points are transmitted to the mapping software;

[0019] The positions of multiple laser irradiation points are connected by drawing software to obtain the driver's field of view.

[0020] In a second aspect, the present application further provides a visual field measurement system, the system comprising:

[0021] A laser rangefinder is used to emit laser energy to the ground to obtain a laser irradiation point and obtain the distance from the laser irradiation point to the laser rangefinder;

[0022] Angle sensor, used to measure the tilt angle and rotation angle of the laser rangefinder;

[0023] The data processor is used to obtain the driver's field of view based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder, and is also used to execute any field of view measurement method of the first aspect.

[0024] In one embodiment, the laser rangefinder further comprises:

[0025] The information transmission unit is used to transmit the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder to the data processor.

[0026] In a third aspect, the present application further provides a visual field measurement device, the device comprising:

[0027] A data acquisition module is used to obtain the distance from the laser irradiation point to the laser rangefinder, and is also used to obtain the tilt angle and rotation angle of the laser rangefinder;

[0028] A data processing module is used to determine the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, and the tilt angle and rotation angle of the laser rangefinder;

[0029] The field of view determination module determines the driver's field of view according to the position of the laser irradiation point.

[0030] In a fourth aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described in any one of the above embodiments when executing the computer program.

[0031] In a fifth aspect, the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in any one of the above embodiments are implemented.

[0032] In a sixth aspect, the present application also provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the method described in any one of the above embodiments.

[0033] The above-mentioned field of view measurement method, device, computer equipment, storage medium and computer program product obtain the distance from the laser irradiation point to the laser rangefinder, the tilt angle and rotation angle of the laser rangefinder, and determine the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and rotation angle of the laser rangefinder, thereby determining the driver's field of view. It can efficiently and quickly measure the field of view of commercial vehicles without manual operation, thereby realizing automated measurement of the field of view. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a structural block diagram of a visual field measurement system in one embodiment;

[0035] Figure 2 1 is a flow chart of a visual field measurement method according to an embodiment;

[0036] Figure 3 for Figure 2 A schematic flow chart of step S202 in the illustrated embodiment;

[0037] Figure 4 is a schematic diagram of a method for determining the position of a laser irradiation point in one embodiment;

[0038] Figure 5 is a schematic diagram of a driver's field of view in one embodiment;

[0039] Figure 6 is a schematic flow chart of a visual field measurement method according to another embodiment;

[0040] Figure 7 is a schematic structural diagram of visual field measurement hardware in one embodiment;

[0041] Figure 8 is a structural block diagram of a visual field measurement device in one embodiment;

[0042] Figure 9FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment.

[0043] Description of reference numerals:

[0044] 701-first strong suction cup, 702-second strong suction cup, 703-suspension rod, 704-universal adjustment bracket, 705-clamp, 706-laser rangefinder, 707-support rod, 708-support bracket, 81-data acquisition module, 82-data processing module, 83-field of view determination module. DETAILED DESCRIPTION

[0045] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection" and the like if there is a transmission of electrical signals or data between the connected objects.

[0047] As used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprising", "having", etc. specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0048] In one embodiment, Figure 1As shown, a visual field measurement system is provided, comprising: a laser rangefinder 10, an angle sensor 101, and a data processor 20. The angle sensor 101 is integrated into the laser rangefinder 10, which is connected to the data processor 20. The laser rangefinder 10 is used to emit laser energy to the ground to obtain a laser illumination point and to obtain the distance from the laser illumination point to the laser rangefinder. The angle sensor 101 is used to measure the tilt angle and rotation angle of the laser rangefinder; the data processor 20 is used to determine the position of the laser illumination point based on the distance from the laser illumination point to the laser rangefinder, the tilt angle, and the rotation angle of the laser rangefinder, and is also used to obtain the driver's visual field based on the position of the laser illumination point.

[0049] A laser rangefinder is an instrument that uses a modulated laser parameter to measure the distance to a target, with a measurement range of 3.5 to 5,000 meters. Based on the distance measurement method, it can be divided into phase-based and pulse-based rangefinders. A pulsed laser rangefinder emits a single or a series of short pulsed laser beams toward a target. A photoelectric element receives the laser beam reflected by the target, and a timer measures the time from emission to reception to calculate the distance from the observer to the target. A phase-based laser rangefinder detects distance by detecting the phase difference between the emitted and reflected light as they propagate through space. Laser rangefinders are lightweight, compact, easy to operate, fast, and accurate, with an error ranging from one-fifth to several hundredths of that of other optical rangefinders. Commonly used laser rangefinders include the Trupulse and Dimetix laser rangefinders, and this application does not limit the choice of laser rangefinder.

[0050] An angle sensor is a component used to detect angles. It has a hole in its body that fits the LEGO shaft. When connected to a programmable brick, the sensor counts every 1 / 16th of a shaft rotation. The count increases with rotation in one direction and decreases with a change in direction. The count is relative to the initial position of the angle sensor. When the angle sensor is initialized, its count value is set to 0. The sensor can be reset programmatically as needed.

[0051] In the above-mentioned field of view measurement system, a laser rangefinder emits laser energy to the ground to obtain a laser irradiation point, and an angle sensor is used to measure the tilt angle and rotation angle of the laser rangefinder. The data processor determines the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and rotation angle of the laser rangefinder, and the data processor can obtain the driver's field of view based on the position of the laser irradiation point. It can realize automatic measurement of the field of view without manual operation, thereby enabling the efficient and rapid measurement of the field of view of commercial vehicles.

[0052] In one embodiment, see Figure 1 The above-mentioned laser rangefinder also includes: an information transmission unit 102.

[0053] The information transmission unit 102 is integrated in the laser rangefinder 10 and is used to transmit the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder to the data processor 20 .

[0054] In the above embodiment, the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder are transmitted to the data processor through the information transmission unit, so that the data processor can determine the position of the laser irradiation point, thereby obtaining the driver's field of view and realizing the automated measurement of the commercial vehicle's field of view.

[0055] In one embodiment, Figure 2 As shown, a visual field measurement method for a data processor applicable to the above visual field measurement system is provided, the method comprising the following steps:

[0056] S201: Obtain the distance from the laser irradiation point to the laser rangefinder; obtain the tilt angle and rotation angle of the laser rangefinder.

[0057] The distance from the laser irradiation point to the laser rangefinder is measured by the laser rangefinder. The laser rangefinder emits energy that reaches the laser irradiation point on the ground. The energy is reflected and received by the laser rangefinder. The laser rangefinder calculates the distance from the laser irradiation point to the laser rangefinder based on the propagation speed of light and the time difference between the transmitted and received energy. The tilt angle and rotation angle of the laser rangefinder are measured by the information transmission unit on the laser rangefinder. The tilt angle refers to the angle between the laser rangefinder and the vertical direction, and the rotation angle refers to the angle of the laser rangefinder in the horizontal plane, such as the angle with a reference line in the horizontal plane. Optionally, a coordinate system can be pre-set in the horizontal plane. The rotation angle is the angle between the laser rangefinder and an axis of the set coordinate system.

[0058] S202: Determine the position of the laser irradiation point according to the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder.

[0059] In actual operation, a three-dimensional coordinate system can be established near the laser rangefinder. Based on the distribution of the laser point and the laser rangefinder in the three-dimensional coordinate system, combined with the distance from the laser irradiation point to the laser rangefinder, the tilt angle of the laser rangefinder, and the rotation angle of the laser rangefinder, the coordinates of the laser irradiation point can be determined, thereby determining the position of the laser irradiation point. The position of the laser irradiation point is the coordinate in the three-dimensional coordinate system. In other embodiments, real geographic coordinates, such as longitude and latitude, can also be used for representation, without specific limitation here.

[0060] In one optional embodiment, the data processor calculates the horizontal projection of the distance from the laser irradiation point to the laser rangefinder using the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder. The position of the laser irradiation point is subsequently determined based on the projection and the rotation angle. In this embodiment, to simplify operation, the position of the laser irradiation point can be represented as a two-dimensional coordinate in the horizontal plane, i.e., the vertical coordinate of the position of the laser irradiation point is 0.

[0061] S203: Determine the driver's field of view according to the position of the laser irradiation point.

[0062] The location of the laser irradiation point is the visible position of the driver's line of sight. Based on the location of the laser irradiation point, the driver's field of vision boundary and thus the driver's field of vision can be determined. It is important to note that the laser rangefinder simulates the driver's eyes and determines the driver's field of vision boundary by emitting energy. Therefore, the location of the laser irradiation point is the visible position of the driver's line of sight.

[0063] In the above embodiment, by obtaining the distance from the laser irradiation point to the laser rangefinder, the inclination angle and the rotation angle of the laser rangefinder, and determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the inclination angle and the rotation angle of the laser rangefinder, the driver's field of view can be determined, and the field of view of commercial vehicles can be measured efficiently and quickly without manual operation, thereby realizing automatic measurement of the field of view.

[0064] In one embodiment, Figure 3 As shown, the above-mentioned method of determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder includes:

[0065] S301: The projection point of the laser rangefinder on the ground is used as a reference point.

[0066] S302: Determine the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder.

[0067] S303: Determine the position of the laser irradiation point according to the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0068] In actual operation, Figure 4As shown, the projection of the laser rangefinder on the ground can be considered the coordinate origin. A three-dimensional coordinate system is established, with the vehicle's forward direction as the positive X-axis, the vehicle's right side as the positive Y-axis, and the direction of the laser rangefinder as the positive Z-axis. In the figure, point A represents the reference point, point B represents the laser rangefinder, and point C represents the laser illumination point. The distance from the laser illumination point to the laser rangefinder is L1, the distance from the laser rangefinder to the reference point is L2, and the distance from the laser illumination point to the reference point is L3. a represents the inclination angle of the laser rangefinder. In a right triangle with L3 as the right angle and L1 and L2 as the hypotenuses, the distance L3 from the laser illumination point to the reference point can be determined using the law of sine based on the distance L1 from the laser illumination point to the laser rangefinder and the inclination angle a of the laser rangefinder: L3 = L1 × sina.

[0069] L4 is the distance from the projection of the laser irradiation point on the X-axis to the reference point, L5 is the distance from the laser irradiation point to the X-axis, and b is the angle between the laser irradiation point and the X-axis, i.e., the rotation angle of the laser rangefinder. In a right triangle with L5 as the right angle and L3 and L4 as the two hypotenuses, the law of sines can be used to determine the distance L5 from the laser irradiation point to the X-axis based on the rotation angle b of the laser rangefinder and the distance L3 from the laser irradiation point to the reference point: L5 = L3 × sinb. The law of cosines can be used to determine the distance L4 from the projection of the laser irradiation point on the X-axis to the reference point based on the rotation angle b of the laser rangefinder and the distance L3 from the laser irradiation point to the reference point: L4 = L3 × cosb.

[0070] L6 is the distance from the laser irradiation point to the Y axis, which is equal to the distance L4 from the projection of the laser irradiation point on the X axis to the reference point. The position of the laser irradiation point can be determined based on the distance L5 from the laser irradiation point to the X axis and the distance L6 from the laser irradiation point to the Y axis.

[0071] In the above embodiment, the projection point of the laser rangefinder on the ground is used as a reference point. The position of the laser irradiation point can be determined by the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder, and thus the driver's field of view can be determined. The field of view of commercial vehicles can be measured efficiently and quickly without manual operation, realizing automatic measurement of the field of view.

[0072] In one embodiment, the above-mentioned determination of the driver's field of view based on the position of the laser irradiation point includes:

[0073] The positions of the multiple laser irradiation points are obtained; and the driver's field of view is determined according to the positions of the multiple laser irradiation points.

[0074] Among them, multiple laser irradiation points can be obtained by adjusting the tilt angle and rotation angle of the laser emitter. The position of each laser irradiation point can be determined by the above method, and the driver's field of view can be obtained according to the position of the laser irradiation point.

[0075] In the above embodiment, by obtaining the positions of the determined multiple laser irradiation points, the driver's field of view can be determined, which can improve the driver's vision.

[0076] In one embodiment, the above-mentioned determining the driver's field of view based on the positions of multiple laser irradiation points includes:

[0077] The positions of the multiple laser irradiation points are transmitted to the drawing software; the positions of the multiple laser irradiation points are connected by the drawing software to obtain the driver's field of view.

[0078] The position of the laser irradiation point represents the boundary of the driver's field of view, and the driver's field of view can be obtained by connecting the laser irradiation points. Figure 5 As shown in the figure, according to the method of obtaining the laser irradiation point, the driver's field of view can be divided into different areas: if the laser irradiation point is directly irradiated by the laser rangefinder on the ground, the position line of the laser irradiation point represents the driver's direct field of view; if the laser irradiation point is reflected by the laser rangefinder on the ground through a wide-angle mirror, the position line of the laser irradiation point represents the driver's wide-angle mirror field of view; if the laser irradiation point is reflected by the laser rangefinder on the ground through the main exterior mirror, the position line of the laser irradiation point represents the driver's main exterior mirror field of view; if the laser irradiation point is reflected by the laser rangefinder on the ground through the blind spot exterior mirror, the position line of the laser irradiation point represents the driver's blind spot exterior mirror field of view; if the laser irradiation point is reflected by the laser rangefinder on the ground through the front lower mirror, the position line of the laser irradiation point represents the driver's front lower mirror field of view; if there is no laser irradiation point on the ground, the area is the driver's comprehensive field of view blind spot.

[0079] In the above embodiment, the positions of multiple laser irradiation points are connected by drawing software to obtain the driver's field of view, without manual operation, and the commercial vehicle's field of view is automatically measured, ensuring that the commercial vehicle's field of view can be measured quickly and efficiently.

[0080] In another embodiment, Figure 6 As shown, a visual field measurement method is provided, which includes the following steps:

[0081] S601: Establish a measurement coordinate system on the ground with the vehicle forward as the positive direction of the X axis and the right side of the vehicle as the positive direction of the Y axis.

[0082] S602: Using a laser rangefinder to mark a point, the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder are obtained through the laser rangefinder and the angle sensor.

[0083] S603: Using the information transmission unit, the distance data and the angle data are transmitted to the automatic data processing system. The automatic data processing system establishes a coordinate system and converts the data into coordinate information.

[0084] S604: The coordinate information data is transmitted to the drawing software, and the coordinates of the irradiation point are converted into an intuitive field of view range diagram using the drawing software.

[0085] The field of view measurement method in the above embodiment is based on intelligent coordinate measurement of the field of view of commercial vehicles. It is very convenient to operate, more stable and reliable, and has higher accuracy. It is suitable for a full range of commercial vehicles including light, medium and heavy trucks. At the same time, it also has a high degree of automation and automatically measures the field of view of commercial vehicles without manual operation, reducing the time to obtain an intuitive driver's field of view diagram.

[0086] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0087] In an optional embodiment, an adsorption hanging comprehensive visual field test hardware is provided, such as Figure 7 As shown, the hardware includes: a first strong suction cup 701, a second strong suction cup 702, a hanging rod 703, a universal adjustment bracket 704, a clamp 705, a laser rangefinder 706, a support rod 707, and a support frame 708.

[0088] Among them, the first strong suction cup 701 and the second strong suction cup 702 are adsorbed on the driver's side window glass or the front windshield; one end of the support rod 707 is hinged to the second strong suction cup 702, and the rod body of the support rod 707 is installed on the support frame 708; one end of the suspension rod 703 is ball-hinged to the first strong suction cup 701, and the rod body of the suspension rod 703 is installed on the support frame 708; the support frame 708 translates axially along the support rod 707 and cooperates with the suspension rod 703 for support; the universal adjustment bracket 704 is fixed on the suspension rod 703; the laser rangefinder 706 is fixed on the universal adjustment bracket 704 through the clamp 705.

[0089] The adsorption suspension type comprehensive visual field testing device provided in the above embodiment has a very high vehicle model matching degree and strong versatility, and is suitable for visual field measurement of various commercial vehicles. The visual field measurement using the above device can automatically measure the visual field of commercial vehicles without manual operation, ensuring that the visual field of commercial vehicles can be measured quickly and efficiently.

[0090] Based on the same inventive concept, embodiments of the present application further provide a visual field measurement device for implementing the visual field measurement method described above. The solution provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more visual field measurement device embodiments provided below can be found in the limitations of the visual field measurement method described above and will not be further elaborated here.

[0091] In one embodiment, Figure 8 As shown, a visual field measurement device is provided, comprising: a data acquisition module 81, a data processing module 82 and a visual field determination module 83, wherein:

[0092] The data acquisition module 81 is used to acquire the distance from the laser irradiation point to the laser rangefinder, and is also used to acquire the tilt angle and rotation angle of the laser rangefinder.

[0093] The data processing module 82 is used to determine the position of the laser irradiation point according to the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder.

[0094] The field of view determination module 83 is used to determine the driver's field of view according to the position of the laser irradiation point.

[0095] In one embodiment, the data processing module includes: a distance determination unit and a position determination unit, wherein:

[0096] The distance determining unit is used to determine the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder, with the projection point of the laser rangefinder on the ground as the reference point.

[0097] The position determination unit is used to determine the position of the laser irradiation point based on the projection point of the laser rangefinder on the ground as a reference point and the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0098] In one embodiment, the field of view determination module includes: a position acquisition unit and a range determination unit, wherein:

[0099] The position acquisition unit is used to acquire the positions of the determined multiple laser irradiation points.

[0100] The range determination unit is used to determine the driver's field of view according to the positions of multiple laser irradiation points.

[0101] In one embodiment, the range determination unit includes: a transmission subunit and a mapping subunit, wherein:

[0102] a transmission subunit, for transmitting the positions of the plurality of laser irradiation points to the mapping software;

[0103] The drawing subunit is used to connect the positions of multiple laser irradiation points through drawing software to obtain the driver's field of view.

[0104] Each module in the aforementioned perimetry device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a computer device memory in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0105] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 9 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a visual field measurement method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the computer device housing, or an external keyboard, touchpad or mouse.

[0106] Those skilled in the art will understand that Figure 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0107] In one embodiment, a computer device is provided, comprising a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the following steps are implemented: obtaining a distance from a laser irradiation point to a laser rangefinder; obtaining a tilt angle and a rotation angle of the laser rangefinder; determining a position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle, and the rotation angle of the laser rangefinder; and determining a driver's field of view based on the position of the laser irradiation point.

[0108] In one embodiment, the steps involved in determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle of the laser rangefinder, and the rotation angle of the laser rangefinder when the processor executes the computer program include the following steps: using the projection point of the laser rangefinder on the ground as a reference point; determining the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder; and determining the position of the laser irradiation point based on the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0109] In one embodiment, the method of determining the driver's field of view based on the position of the laser irradiation point when the processor executes the computer program includes the following steps: obtaining the positions of multiple determined laser irradiation points; and determining the driver's field of view based on the positions of multiple laser irradiation points.

[0110] In one embodiment, the method of determining the driver's field of view based on the positions of multiple laser irradiation points when a processor executes a computer program includes the following steps: transmitting the positions of the multiple laser irradiation points to a drawing software; and connecting the positions of the multiple laser irradiation points through the drawing software to obtain the driver's field of view.

[0111] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: obtaining the distance from a laser irradiation point to a laser rangefinder; obtaining the tilt angle and rotation angle of the laser rangefinder; determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and rotation angle of the laser rangefinder; and determining the driver's field of view based on the position of the laser irradiation point.

[0112] In one embodiment, the computer program, when executed by a processor, involves determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder, including the following steps: taking the projection point of the laser rangefinder on the ground as a reference point; determining the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder; determining the position of the laser irradiation point based on the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0113] In one embodiment, when a computer program is executed by a processor, the method of determining the driver's field of view based on the position of the laser irradiation point includes the following steps: obtaining the positions of multiple determined laser irradiation points; and determining the driver's field of view based on the positions of multiple laser irradiation points.

[0114] In one embodiment, when a computer program is executed by a processor, the method of determining the driver's field of view based on the positions of multiple laser irradiation points includes the following steps: transmitting the positions of the multiple laser irradiation points to a drawing software; and connecting the positions of the multiple laser irradiation points through the drawing software to obtain the driver's field of view.

[0115] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0116] Obtain the distance from the laser irradiation point to the laser rangefinder; obtain the tilt angle and rotation angle of the laser rangefinder; determine the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and rotation angle of the laser rangefinder; and determine the driver's field of view based on the position of the laser irradiation point.

[0117] In one embodiment, the steps involved in determining the position of the laser irradiation point based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle of the laser rangefinder, and the rotation angle of the laser rangefinder when the processor executes the computer program include the following steps: using the projection point of the laser rangefinder on the ground as a reference point; determining the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder; and determining the position of the laser irradiation point based on the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point.

[0118] In one embodiment, the method of determining the driver's field of view based on the position of the laser irradiation point when the processor executes the computer program includes the following steps: obtaining the positions of multiple determined laser irradiation points; and determining the driver's field of view based on the positions of multiple laser irradiation points.

[0119] In one embodiment, the method of determining the driver's field of view based on the positions of multiple laser irradiation points when a processor executes a computer program includes the following steps: transmitting the positions of the multiple laser irradiation points to a drawing software; and connecting the positions of the multiple laser irradiation points through the drawing software to obtain the driver's field of view.

[0120] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0121] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0122] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0123] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A visual field measurement method, characterized in that: The method comprises: Obtaining the distance from the laser irradiation point to the laser rangefinder; obtaining the tilt angle and rotation angle of the laser rangefinder; The projection point of the laser rangefinder on the ground is used as a reference point; determining the distance from the laser irradiation point to the reference point according to the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder; determining the position of the laser irradiation point according to the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point; The driver's field of view is determined according to the position of the laser irradiation point.

2. The method according to claim 1, characterized in that Determining the driver's field of view according to the position of the laser irradiation point includes: Acquiring the determined positions of the plurality of laser irradiation points; The driver's field of view is determined according to the positions of the multiple laser irradiation points.

3. The method according to claim 2, characterized in that Determining the driver's field of view according to the positions of the plurality of laser irradiation points includes: transmitting the positions of the plurality of laser irradiation points to a mapping software; The positions of the multiple laser irradiation points are connected by the drawing software to obtain the driver's field of view.

4. A visual field measurement system, characterized in that: The system comprises: A laser rangefinder, configured to emit laser energy to the ground to obtain a laser irradiation point, and obtain the distance from the laser irradiation point to the laser rangefinder; An angle sensor, used to measure the tilt angle and rotation angle of the laser rangefinder; A data processor is used to obtain the driver's field of view based on the distance from the laser irradiation point to the laser rangefinder, the tilt angle and the rotation angle of the laser rangefinder, and to execute the field of view measurement method according to any one of claims 1 to 3.

5. The system according to claim 4, characterized in that The laser rangefinder also includes: An information transmission unit is used to transmit the distance from the laser irradiation point to the laser rangefinder, and the tilt angle and rotation angle of the laser rangefinder to the data processor.

6. A visual field measurement device, characterized in that: The device comprises: A data acquisition module is used to obtain the distance from the laser irradiation point to the laser rangefinder, and is also used to obtain the tilt angle and rotation angle of the laser rangefinder; a data processing module, configured to use the projection point of the laser rangefinder on the ground as a reference point; determine the distance from the laser irradiation point to the reference point based on the distance from the laser irradiation point to the laser rangefinder and the tilt angle of the laser rangefinder; and determine the position of the laser irradiation point based on the rotation angle of the laser rangefinder and the distance from the laser irradiation point to the reference point; The field of view determination module is used to determine the driver's field of view according to the position of the laser irradiation point.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 3 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

9. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

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