An image acquisition device for a smoking path simulation system

Abstract

The present invention relates to an image acquisition device for a smoking path simulation system, and belongs to the technical field of cigarette detection equipment. The device includes a manipulator, a frame body fixedly connected to the working end of the manipulator and having N support rods, N cameras respectively fixedly connected to different support rods and with lenses facing the working end of the manipulator, and N fill lights respectively fixedly connected to different support rods and with light sources facing the working end of the manipulator; wherein N≥2. The device of the present invention utilizes fill lights and a camera to dynamically acquire images in real time under the action of the smoking path of the manipulator, thereby effectively improving the accuracy of the detection of the burning ash characteristics of cigarettes. The present invention is suitable for image acquisition in smoking path simulation systems of various types of cigarettes.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette detection equipment, and in particular relates to an image acquisition device of a smoking path simulation system. Background Art

[0002] When studying the ash performance, gray color, ash-retention deviation and other indicators of cigarette burning, it is necessary to collect the image status of the cigarette during the entire burning process. Comprehensive, accurate and objective collection of cigarette burning images is the key to accurate detection and analysis of the above indicators. Facts have proved that due to the overlap of the burning end of the cigarette, and the influence of factors such as tobacco filling density and tobacco structure differences of each cigarette, the observation of the cigarette at various angles during burning will inevitably have large differences and fluctuations.

[0003] At present, the detection of cigarette combustion-related indicators usually adopts the method of collecting images by single-sided photography for image analysis. Due to the above reasons, the detection values ​​of each cigarette lack objectivity and high accuracy. Of course, in order to avoid the above shortcomings of single-sided photography, the experiment also adopted the method of avoiding the intersection of cigarettes or increasing the number of test samples. This may slightly improve the test results, but it still cannot fundamentally solve the problem and cannot achieve the objective collection of all information of the cigarette samples. At the same time, it also reduces work efficiency and requires the preparation of a large number of parallel samples.

[0004] In addition, the current research on some related indicators of cigarette combustion performance uses static fixed-point shooting methods for image acquisition, and there is no dynamic image acquisition method that simulates the human body's puffing process. Therefore, there is no good image acquisition device and equipment for studying the combustion performance of cigarettes during human puffing. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an image acquisition device for a smoking path simulation system that can realize dynamic imaging of cigarettes.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] An image acquisition device for a smoking path simulation system comprises a manipulator, a frame connected to a working end of the manipulator and having N supporting rods, N cameras respectively connected to different supporting rods and with lenses facing the working end of the manipulator, and N fill lights respectively connected to different supporting rods and with light source surfaces facing the working end of the manipulator; wherein N≥2.

[0008] Furthermore, preferably, the camera field of view is parallel to the axis of the working end of the manipulator.

[0009] Furthermore, preferably, the ray direction of the light from the fill light is perpendicular to the axis of the working end of the manipulator.

[0010] Furthermore, preferably, a cigarette holder is fixedly connected to the working end of the manipulator.

[0011] Furthermore, preferably, the axis of the cigarette holder, the axis of the cigarette and the axis of the working end of the manipulator are kept consistent.

[0012] Furthermore, preferably, the cigarette holder is fixed to the manipulator by means of threaded engagement.

[0013] Furthermore, preferably, the manipulator simulates the smoking action of a consumer in space.

[0014] Furthermore, preferably, N=3, that is, there are 3 cameras, and 3 fill lights are symmetrically arranged with the cigarette as the center. The fill lights are located close to the camera to ensure uniform lighting of the cigarette. The present invention uses multiple groups of cameras to comprehensively collect detection images, which greatly reduces the detection data error caused by single-sided image collection, while increasing the effective detection data and improving the detection efficiency.

[0015] The fill light of the present invention is used to fill light in the image collection area; the manipulator is used to simulate the smoking action of consumers in the space, including the actions of swinging arms, turning wrists, flicking ash, etc. after smoking. The camera is used to collect images in real time and dynamically along the smoking path of the manipulator.

[0016] In the frame body with N supporting rods of the present invention, the supporting rods and the frame body can be integrally formed or fixedly connected, and the present invention does not impose any special restrictions on this. Preferably, the supporting rods are perpendicular to the plane where the frame body is located.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. It realizes the full visual real-time acquisition of images during cigarette burning, avoiding the lack of objectivity and accuracy of the detection results due to the acquisition of images by single-sided photography, greatly improving the accuracy of the detection results, and providing accurate data support for guiding product technology research and development and production optimization; Table 1 and Figure 2 This is an example of improving the detection indicators.

[0019] From the data in Table 1, it can be seen that for the same parallel sample, the ash crack index (the area of ​​the ash column crack divided by the overall area of ​​the ash column × 100%) test is carried out with a single-sided shooting test device. The SD value is large and the test value also shows large fluctuations, making it difficult to accurately determine the sample test results. Using three-sided full-vision testing, it can be seen from the SD value that the test stability is good. At the same time, due to full-vision image acquisition, the test results are more objective and accurate.

[0020] Table 1 Detection values ​​of cigarette ash cracking index of different detection methods for each parallel sample

[0021]

[0022] Depend on Figure 2 It can be seen from the data detection results and the corresponding collected images that if single-sided shooting is used, it is difficult to accurately detect and evaluate the deviation of the cigarette ash column due to the limited shooting angle.

[0023] 2. The image acquisition device of the smoking path simulation system of the present invention can realize the tracking of the smoking state of the cigarette in the process of simulating the human body's action of smoking a cigarette, ensuring the consistency of each simulated action path. By setting up a camera, the dynamics of the cigarette can be photographed and imaged at any position during the action of the manipulator, thereby effectively improving the accuracy of multiple performance detection indicators related to cigarette burning, and at the same time ensuring the efficiency of detection.

[0024] 3. The fill light system matched with the camera is evenly and symmetrically distributed, which realizes the sufficiency and stability of the light source in the detection environment and ensures the consistency of the shooting conditions of the detection samples at all angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an image acquisition device of a smoking path simulation system of the present invention;

[0027] Among them, 1. manipulator; 2. support rod; 3. frame; 4. camera; 5. fill light; 6. cigarette holder; 7. cigarette;

[0028] Figure 2 This is a test chart of the ash cracking index of each parallel sample cigarette combustion. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with embodiments.

[0030] Those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0031] It will be understood by those skilled in the art that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we say that an element is "connected" to another element, it can be directly connected to the other element, or there can be intermediate elements.

[0032] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0034] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0035] like Figure 1As shown, an image acquisition device of a smoking path simulation system comprises a manipulator 1, a frame 3 fixedly connected to the working end of the manipulator 1 and having N support rods 2, N cameras 4 respectively fixedly connected to different support rods 2 and with lenses facing the working end of the manipulator 1, and N fill lights 5 respectively fixedly connected to different support rods 2 and with light source surfaces facing the working end of the manipulator 1; wherein N ≥ 2. Preferably, N is 3

[0036] Preferably, the field of view of the camera 4 is parallel to the axis of the working end of the manipulator 1 .

[0037] Preferably, the ray direction of the light from the fill light 5 is perpendicular to the axis of the working end of the manipulator 1 .

[0038] Preferably, a cigarette holder 6 is fixedly connected to the working end of the manipulator 5 .

[0039] Preferably, the axis of the cigarette holder 6, the axis of the cigarette 7 and the axis of the working end of the manipulator 1 are consistent.

[0040] Preferably, the cigarette holder 6 is fixed to the manipulator 1 by means of threaded engagement.

[0041] Preferably, the robot 1 simulates the smoking action of a consumer in space.

[0042] The manipulator 1 plans its simulated moving smoking path in a preset program, and the frame 3 where the support rod 2 carrying the camera 4 and the fill light 5 is located is fixedly connected to the manipulator 1 and moves along the smoking path of the manipulator 1 in space.

[0043] In this embodiment, the working end of the manipulator 1 is located at a preset initial position, the camera 3 and the fill light 4 are fixedly connected to the support rod 2 of the frame 3 on the manipulator 1, and the light of the fill light 5 is evenly distributed in the image acquisition area of ​​the working end of the manipulator 1. After the manipulator 1, the camera 4 and the fill light 5 are powered, the device starts to start.

[0044] The manipulator 1 moves according to the smoking path of the simulated human body under the drive of the preset program, the fill light 5 fixed to the support rod 2 on the frame 3 is turned on, and the camera 2 starts working. In the case of real-time movement of the manipulator 1, the camera 2 can collect effective images in the area where the fill light 4 is evenly distributed at any time in real time according to demand. After the collection is completed, the corresponding collected images can be analyzed and processed according to actual needs (Note: analyzing and processing the image does not belong to the work content of the components of the present invention). When the entire device is finished, the manipulator 1 returns to the initial position and stops moving, the fill light 5 is turned off, and the camera 4 stops collecting images.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An image acquisition device for a smoking path simulation system, characterized in that: It comprises a manipulator, a frame having N supporting rods fixedly connected to a working end of the manipulator, N cameras respectively fixedly connected to different supporting rods and with lenses facing the working end of the manipulator, and N fill lights respectively fixedly connected to different supporting rods and with light sources facing the working end of the manipulator; wherein N≥2; The working end of the manipulator is fixedly connected with a cigarette holder; The axis of the cigarette holder, the cigarette holder and the working end of the manipulator are consistent; The manipulator simulates the smoking action of the consumer in the space; The robot moves along the smoking path of the simulated human body, the fill light fixed to the support rod on the frame is turned on, and the camera starts working; under the real-time movement of the robot, the camera can collect effective images in the area where the fill light is evenly distributed at any time as needed, and after the collection is completed, the corresponding images collected are analyzed and processed.

2. The image acquisition device of the smoking path simulation system according to claim 1, characterized in that: The camera field of view is parallel to the axis of the working end of the manipulator.

3. The image acquisition device of the smoking path simulation system according to claim 1, characterized in that: The ray direction of the light from the fill light is perpendicular to the axis of the working end of the manipulator.

4. The image acquisition device of the smoking path simulation system according to claim 1, characterized in that: The cigarette holder is fixed with the manipulator by means of threaded engagement.

5. The image acquisition device of the smoking path simulation system according to claim 1, characterized in that: N=3。

Images