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US 12,018,929 B2Granted
Non-contact key tooth profile learning method and system
AssigneeShenzhen Xhorse Electronics Co., Ltd.
InventorsYongfeng Xi, Yuan He, Yijie Hao, Guozhong Cao, Chenglong Li, Hui Liu
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Abstract
A non-contact key tooth profile learning method and system are provided. The non-contact key tooth profile learning method comprises the following steps: acquiring first profile point cloud data of a key by means of a line laser method; and processing the first profile point cloud data so as to obtain first 3D profile information.
Claims15
A non-contact key tooth profile learning method, comprising following steps:
- acquiring first profile point cloud data of a key by a line laser method;
- and
- processing the first profile point cloud data to obtain first 3D profile information;
- wherein the step of acquiring first profile point cloud data of the key by the line laser method comprises:
- projecting a single beam of line laser on a surface of the key successively in multiple viewing angles for translational scanning, and receiving reflected laser reflected from the surface of the key in the multiple viewing angles;
- obtaining profile data of the key in the multiple viewing angles according to the reflected laser in the multiple viewing angles;
- and
- obtaining the first profile point cloud data according to the profile data in the multiple viewing angles, and
- the step of processing the first profile point cloud data to obtain first 3D profile information comprises:
- performing three-dimensional curved surface reconstruction on the first profile point cloud data to obtain the first 3D profile information;
- wherein the step of projecting a single beam of line laser on the surface of the key successively in multiple viewing angles for translational scanning and receiving reflected laser reflected from the surface of the key in the multiple viewing angles comprises:
- a linear laser machine projecting the line laser on the surface of the key and receiving the reflected laser reflected from the surface of the key;
- making the line laser irradiate an entire surface of the key by controlling the linear laser machine, which is preset, to emit the line laser to irradiate the surface of the key and controlling the linear laser machine to operate according to a preset action;
- and
- receiving a laser signal reflected from the key in real time;
- wherein the step of making the line laser irradiate an entire surface of the key by controlling the linear laser machine which is preset to emit the line laser to irradiate the surface of the key and controlling the linear laser machine to operate according to a preset action comprises:
- making the linear laser machine perform 360° scanning on the key by controlling the linear laser machine to rotate by 360° around the key and translate around the key;
- or
- controlling a carrier of the key to translate and rotate to make the key itself rotate by 360°.
16 more elements
A non-contact key tooth profile learning system, comprising:
- an image acquisition module, which is configured to acquire first profile point cloud data of a surface of a key by a line laser method;
- and
- an image processing module, which is configured to process the first profile point cloud data to obtain first 3D profile information;
- wherein the image acquisition module comprises:
- an image integration unit, which is configured to receive amplified reflected laser,
- wherein the image integration unit is connected to the image processing module, and is configured to send the first profile point cloud data acquired by the image acquisition module to the image processing module;
- wherein the image acquisition module further comprises:
- a laser emitting unit and a laser receiving unit, which are configured to project a single beam of line laser on the surface of the key successively in multiple viewing angles for translational scanning, and receive reflected laser reflected from the surface of the key in the multiple viewing angles;
- an obtaining unit, which is configured to obtain profile data of the key in the multiple viewing angles according to the reflected laser in the multiple viewing angles;
- and
- a conversion unit, which is configured to make the first profile point cloud data according to the profile data in the multiple viewing angles, and
- the image processing module comprises:
- a three-dimensional curved surface reconstruction unit, which is configured to perform three-dimensional curved surface reconstruction according to the first profile point cloud data to obtain the first 3D profile information.
10 more elements
Dependencies are inferred from the claim text.