Measurement precision detection device for binocular distance measurement system

Abstract

The utility model provides a measuring precision detection device for a binocular distance measuring system. The device comprises a stepping motor, a coupling, a target point fixing plate, a screw rod sliding table, a driving plate and a motor driver, wherein the driving plate, the motor driver and the stepping motor are in communication connection in sequence, the stepping motor is connected with a lead screw of the lead screw sliding table through the coupler, and the target spot fixing plate is fixed to a sliding table body of the lead screw sliding table. The binocular distance measuring system measurement precision detection device driven by the stepping motor and the screw rod sliding table is designed, the target spot can move according to a given displacement curve, the target spot displacement curve measured by the binocular distance measuring system is compared with the given target spot displacement curve, the measurement precision of the binocular distance measuring system is obtained, and the measurement precision of the binocular distance measuring system is improved. Therefore, the measurement precision of the binocular ranging system is detected. Compared with a general precision detection scheme, due to the fact that the stepping motor and the lead screw sliding table are adopted, motion precision is extremely high, detection reliability is high, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to binocular distance measuring system measurement precision detection technical field, especially in kind binocular distance measuring system measurement precision detection device. BACKGROUND

[0002] The precision detection of binocular distance measuring system is usually through simply measuring the vertical distance of the static target point and the line connecting the two camera optical centers. According to the different measuring tools, its detection reliability is different, and the detection reliability of using scale is low, and the detection reliability of using laser or TOF sensor is very high, but the cost is also very high.

[0003] Therefore, it is necessary to provide a new way to solve the above technical problems. UTILITY MODEL CONTENT

[0004] In order to realize the above purpose and other advantages of the utility model, the utility model aims at providing a kind of binocular distance measuring system measurement precision detection device, including stepper motor, shaft coupling, target point fixed plate, screw slide, drive plate, motor driver;Wherein,

[0005] The drive plate, the motor driver and the stepper motor are sequentially connected, the stepper motor is connected with the screw rod of the screw slide through the shaft coupling, and the target point fixed plate is fixed on the slide table of the screw slide;

[0006] The drive plate controls the motor driver to control the forward and reverse rotation and the rotating speed of the stepper motor;

[0007] The stepper motor drives the screw rod to rotate through the shaft coupling, and then drives the target point fixed plate to move forward and backward according to the given displacement curve.

[0008] Further, a cross shallow hook surface is arranged on the target point fixed plate.

[0009] Further, the cross shallow hook surface of the target point fixed plate faces the two lens planes of the binocular distance measuring system.

[0010] Further, the target point is fixed on the cross shallow hook surface of the target point fixed plate.

[0011] Further, the target point fixed plate is fixed on the slide table of the screw slide by screws.

[0012] Further, the drive plate is programmed according to the screw pitch of the screw slide and the given displacement curve.

[0013] Further, the drive plate determines the number of pulses emitted according to the displacement of the target point fixed plate.

[0014] Further, the driving board adopts an Arduino R3 driving board.

[0015] Further, the target fixing plate is made by 3D printing.

[0016] Further, the device adopts a unified dark color, and the target adopts a white circle.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a double eye distance measuring system measurement precision detection device of stepper motor and screw slide table drive, can make target point motion according to the given displacement curve, compares the target point displacement curve that double eye distance measuring system measured with the target point displacement curve given, obtains the measurement precision of double eye distance measuring system, realizes the detection to double eye distance measuring system measurement precision. Compared with general precision detection scheme, since the utility model adopts stepper motor, screw slide table, motion precision is extremely high, and detection reliability is high, and cost is also lower.

[0019] The above description is only the summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the drawings.The specific embodiment of the utility model is given in detail by the following embodiments and its drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the utility model, constitute a part of this application, and the illustrative embodiments of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model.In the drawings:

[0021] Figure 1 It is double eye distance measuring system measurement precision detection device structure diagram;

[0022] Figure 2 It is double eye distance measuring system measurement precision detection scheme flow chart.

[0023] In the drawings, 1, stepper motor;2, coupling;3, target fixing plate;4, screw slide table. CONCRETE EMBODIMENT

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0025] In the drawings, the shapes and dimensions can be exaggerated for clarity, and the same reference numerals will be used throughout different drawings to designate the same or similar components.

[0026] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are defined with respect to the configuration shown in the drawings, and in particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back, which are relative concepts and thus can vary depending on the different positions and different use states, and therefore, these or other orientations should not be interpreted as limiting terms.

[0027] Terms relating to attachment, coupling, and the like (for example, "connected" and "attached") refer to a relationship in which structures are fixed or attached to each other directly or indirectly through intermediate structures, as well as movable or rigid attachment or relationship, unless explicitly stated otherwise.

[0028] The utility model discloses to the binocular distance measuring system measurement precision determination problem, proposes a kind of binocular distance measuring system measurement precision detection scheme, and designs a kind of using stepper motor, screw slide table driven binocular distance measuring precision detection device, can be driven by stepper motor, screw slide table measured target point reciprocating motion according to given displacement curve, by comparing the difference of target point displacement curve measured by binocular distance measuring system and given target point displacement curve, realize the evaluation of binocular distance measuring system measurement precision.

[0029] Example 1

[0030] A binocular distance measuring system measurement precision detection device, as shown in Figure 1 、 Figure 2 shown, including stepper motor 1, coupling 2, target point fixed plate 3, screw slide table 4, drive plate, motor driver;Wherein,

[0031] The drive plate, the motor driver, the stepper motor are sequentially connected, the stepper motor is connected with the screw rod of the screw slide table through the coupling, and the target point fixed plate is fixed on the slide table of the screw slide table;

[0032] The drive plate controls the motor driver and then controls the forward and reverse rotation and speed of the stepper motor;

[0033] The stepper motor drives the screw rod to rotate through the coupling, and then drives the target point fixed plate to move forward and backward according to the given displacement curve.

[0034] In some embodiments, the target fixing plate is made by 3D printing. Further, the target fixing plate is fixed on the slide of the lead screw slide by screws.

[0035] In some embodiments, the driving board adopts Arduino R3 driving board. The motor driver is controlled by the Arduino R3 driving board, and then the step motor is controlled in forward and reverse rotation and rotation speed. Further, the driving board is programmed according to the lead screw pitch of the lead screw slide and the given displacement curve.

[0036] Specifically, according to the given displacement curve, the Arduino R3 driving board is programmed according to the known pitch of the lead screw, so that the step motor drives the lead screw to rotate through the coupling, and the target fixing plate can move forward and backward according to the given displacement curve.

[0037] Further, in order to facilitate detection, the entire device can be uniformly colored in dark colors such as black and gray, and the target point can be set as a white circle.

[0038] In some embodiments, the target fixing plate is provided with a cross shallow hook surface.

[0039] Further, the cross shallow hook surface of the target fixing plate is opposite to the two lens planes of the binocular distance measuring system.

[0040] Further, the target point is fixed on the cross shallow hook surface of the target fixing plate.

[0041] In use, the cross shallow hook surface of the target fixing plate is opposite to the two lens planes of the binocular distance measuring system, and the two planes are as parallel as possible; then the target point is fixed on the cross shallow hook surface of the target fixing plate, the binocular distance measuring system is turned on, and the device is started. Further, the driving board determines the number of pulses emitted according to the displacement of the target fixing plate. That is, the displacement of the target fixing plate can also be directly given, and the number of pulses emitted can be given in the Arduino R3 driving board. After the distance measurement is completed, the measurement accuracy of the binocular distance measuring system is detected by comparing the distance difference of the target point before and after measured by the binocular distance measuring system with the given displacement of the target fixing plate.

[0042] Compared with the distance measurement accuracy detection scheme of only observing the start and end states, the measurement accuracy of the binocular distance measuring system is evaluated by comparing the target point displacement curve with the given motion curve, which can dynamically analyze the measurement accuracy of the binocular distance measuring system, fully reflect the measurement effect of the binocular distance measuring system in response to the same target point at different distances, different speeds and different pixels, and has higher reliability.

[0043] The embodiment mainly uses a stepper motor, a screw slide and a target fixing plate, uses an Ardu i no R3 driving board to program, obtains the measurement accuracy of the binocular distance measuring system by comparing the difference between the target displacement curve measured by the binocular distance measuring system according to the given displacement curve and the given displacement curve.

[0044] The number of devices and the scale of processing described herein are used to simplify the description of the present application. It is obvious to those skilled in the art that the application, modification and change of the present application are obvious.

[0045] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and the modification and change of the present application are obvious to those skilled in the art. Therefore, the present application is not limited to the specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

[0046] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0047] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the difference from other embodiments. Especially, the system embodiment is basically similar to the method embodiment, so the description is relatively simple, and the relevant part can be referred to the part of the method embodiment.

[0048] The above is only an embodiment of the present application, and is not used to limit one or more embodiments of the present application. One or more embodiments of the present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of one or more embodiments of the present application should be included in the claim scope of one or more embodiments of the present application.

Claims

1. A device for detecting the measurement accuracy of a binocular ranging system, characterized in that: This includes a stepper motor, coupling, target fixing plate, lead screw slide, drive plate, and motor driver; among which, The drive board, the motor driver, and the stepper motor are connected in sequence for communication. The stepper motor is connected to the lead screw of the lead screw slide table through the coupling. The target fixing plate is fixed on the slide table of the lead screw slide table. The drive board controls the forward and reverse rotation and speed of the stepper motor by controlling the motor driver; The stepper motor drives the lead screw to rotate through the coupling, thereby causing the target fixing plate to move back and forth according to a given displacement curve; The target fixing plate is fixed to the slide of the lead screw slide by screws; The drive board is programmed according to the lead screw pitch of the lead screw slide and the given displacement curve; The drive board determines the number of pulses to be emitted based on the displacement of the target fixing plate.

2. The binocular ranging system measurement accuracy detection device as described in claim 1, characterized in that: The target fixing plate is provided with a shallow cross-shaped hook surface.

3. The binocular ranging system measurement accuracy detection device as described in claim 2, characterized in that: The shallow crosshatch surface of the target fixing plate faces the two lens planes of the binocular ranging system.

4. The binocular ranging system measurement accuracy detection device as described in claim 2, characterized in that: The target point is fixed to the shallow hook surface of the target point fixing plate.

5. The binocular ranging system measurement accuracy detection device as described in claim 1, characterized in that: The driver board used is the Arduino R3 driver board.

6. The binocular ranging system measurement accuracy detection device as described in claim 1, characterized in that: The target fixation plate was made using 3D printing.

7. The binocular ranging system measurement accuracy detection device as described in claim 1, characterized in that: The device uses a uniform dark color, and the target point is a white circle.

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