Autonomous positioning system and method based on fusion of laser visual signal and inertial navigation
A technology of inertial navigation and fusion positioning, which is applied to road network navigators and other directions, can solve the problems of large positioning errors and lack of positioning information, and achieve the effect of meeting positioning requirements and making up for serious errors
Inactive Publication Date: 2020-05-01
北京星网宇达科技股份有限公司
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Problems solved by technology
There is no cumulative error, but it has defects such as being easily affected by occlusion in complex environments, resulting in large positioning errors or missing positioning information.
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] An autonomous positioning method based on the fusion of laser vision and inertia, which is characterized in that it includes: an intelligent mobile terminal, a laser vision beacon node, a local area network and a server, and inertial navigation and positioning components.
[0028] Exemplarily, the user positioning software is installed on the smart mobile terminal, and the sof...
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The invention provides an autonomous positioning system based on fusion of laser vision and inertia. The autonomous positioning system comprises an intelligent mobile terminal, a laser vision beacon node, a local area network and a server. A positioning method adopts inertial navigation positioning; the inertial navigation positioning means that inertial navigation positioning information is obtained through an accelerometer, a gyroscope and an electronic compass which are built in the intelligent mobile terminal, and data fusion is carried out on a laser visual signal and the inertial navigation positioning information through an autonomous information fusion algorithm, thereby outputting an accurate navigation positioning result. According to the autonomous positioning system based on the fusion of the laser vision and the inertia provided by the invention, laser visual signal positioning and inertia navigation positioning are fused to achieve complementary advantages; on the one hand, the use of the laser vision signal positioning eliminates cumulative errors of the inertial navigation positioning, and on the other hand, the defect that the laser vision signal positioning causesserious errors in the positioning information due to a shielding condition is made up; and the positioning precision is high and positioning requirements of users are better met.
Description
technical field [0001] The invention belongs to the field of location-based services, and in particular relates to an autonomous positioning system based on fusion of laser vision signals and inertial navigation and a method thereof. Background technique [0002] With the rapid development of mobile communication technology, LBS is more and more favored by people. LBS widely supports applications related to geospatial information, such as information query, emergency services, navigation, asset management, personnel tracking, positioning advertisements, etc., which brings great convenience to people's production and life. Due to different technical solutions and application scenarios, location-based service technology can be divided into outdoor positioning technology and indoor positioning technology; in outdoor environments, GNSS is widely used in military and civilian fields, and can achieve accurate positioning and navigation according to requirements; however In the na...
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Login to View More IPC IPC(8): G01C21/28
CPCG01C21/28
Inventor 徐烨烽徐韬杨永馨
Owner 北京星网宇达科技股份有限公司