Vehicular inertial navigation system
An inertial navigation system and vehicle-mounted terminal technology, which is applied to road network navigators, navigation through speed/acceleration measurement, etc., can solve the problems of inability to achieve navigation and vehicle GPS navigation system cannot navigate and locate, and achieve the effect of improving stability.
Inactive Publication Date: 2015-04-08
BINZHOU UNIV +1
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[0002] In the current car navigator industry, due to the diversification of products, there are many models. The current vehicle navigation mainly depends on the GPS positioning system. It must receive four or more effective satellite signals at the same time to be correct. Locate the position of the vehicle, and navigation cannot be realized without GPS signals. For example, when the vehicle is driving between tunnels and high-rise buildings in the city, the car GPS navigation system will not be able to navigate and locate due to the attenuation of satellite signals
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[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0015] see figure 1 , the present invention provides a technical solution: a vehicle-mounted inertial navigation system, including a data acquisition module 1 and a vehicle-mounted terminal 2, the vehicle-mounted terminal 2 is electrically connected to a power supply module 3 for power supply, and the signal acquisition module 1 communicates with the vehicle-mounted terminal through a data line 2 connection, the vehicle terminal 2 includes a single-chip microc...
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The invention discloses a vehicular inertial navigation system comprising a data collection module and a vehicular terminal, wherein the data collection module comprises an angle speed sensor, an accelerometer and a tire rotating speed difference sensor; the angle speed sensor is used for collecting angle speed variation of a vehicle; the accelerometer is used for collecting the vehicle acceleration; the tire rotating speed difference sensor is used for collecting the rotating speed difference of a tire; and the angle sped sensor, the accelerometer and the tire rotating speed difference sensor are electrically connected with a USB interface through data lines. According to the vehicular inertial navigation system, when a satellite signal is lost, the vehicle is subjected to navigation and location by obtaining the angle speed variation and acceleration of the vehicle, and data of the rotating speed difference of the tire, and a series of calculation, and the problem that the vehicle cannot be subjected to the navigation and the location, or the navigation and the location are unstable in the absence of the satellite signal is effectively solved, and thus the navigation and location stability of the vehicle is greatly improved.
Description
technical field [0001] The invention relates to the technical field of navigation, in particular to a vehicle inertial navigation system. Background technique [0002] In the current car navigator industry, due to the diversification of products, there are many models. The current vehicle navigation mainly depends on the GPS positioning system. It must receive four or more effective satellite signals at the same time to be correct. Locate the position of the vehicle, and navigation cannot be realized without GPS signals. For example, when the vehicle is driving between tunnels and high-rise buildings in the city, the car GPS navigation system will not be able to navigate and locate due to the attenuation of satellite signals. Contents of the invention [0003] The purpose of the present invention is to provide a vehicle inertial navigation system to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the p...
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IPC IPC(8): G01C21/26
CPCG01C21/26G01C21/16
Inventor 柳明
Owner BINZHOU UNIV