Vehicle Spatial Positioning System Based on Ultrasonic
A space positioning and ultrasonic technology, applied in radio wave measurement systems, positioning, and re-radiation, etc., can solve problems such as large errors, unstable positioning, and large environmental impact, and achieve improved reliability, improved utilization efficiency, and structural design. simple effect
Inactive Publication Date: 2017-01-25
HUBEI UNIV OF AUTOMOTIVE TECH
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The present invention proposes a simple and reasonable structural design to solve the problem that there are certain defects in the structure design of the existing vehicle space positioning system, which is greatly affected by the environment, the positioning is unstable and the error is large, and the precise positioning of the vehicle space cannot be effectively realized. , stable operation, can correct the error bridge of the fixed position, can effectively improve the reliability of the final positioning information, and realize the precise positioning of the vehicle in the local space. The vehicle space positioning system based on ultrasonic
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] Such as figure 1 As shown, the ultrasonic-based vehicle spatial positioning system of the present invention includes a main control chip 1, a transmitting module 2, a receiving module 3, a transfer processing module 4, a control input module 5, a serial port screen display module 6 and a power supply 7.
[0021]The main control chip 1 adopts the TMS320F28027 main control chip, which is respectively connected to the transmitting module 2, the transfer processing module 4 and the control input module 5 through the GPIO port. At the same time, it is also connected to the serial screen display module 6 through the serial port SCI; the main control The chip 1 is provided with a timer and a power management module for generating 40KHz square waves and timing, the power supply 7 is connected to the power management module of the main control chip 1, the receiving module 3 is connected to the transfer processing module 4 and passes through the transfer The processing module 4 i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a vehicle space locating system based on ultrasonic waves. The vehicle space locating system comprises a master control chip, a transmitting module, a receiving module, a switching-over processing module, a control input module, a serial port screen display module and a power source. The master control chip is connected with the transmitting module, the switching-over processing module and the control input module through GPIO ports, and meanwhile is in connection and communication with the serial port screen display module through an SCI. The master control chip is provided with a power management module and is connected with the power source through the power management module. The receiving module is connected to the switching-over processing module and is connected with the master control chip through the switching-over processing module. The vehicle space locating system is simple and reasonable in structural design and stable in running, error correction can be carried out on a locating position, final locating information reliability can be effectively improved, and accurate vehicle space locating can be achieved.
Description
technical field [0001] The invention relates to the technical field of vehicle space positioning, in particular to an ultrasonic-based vehicle space positioning system. Background technique [0002] TOA (Time of Arrive) positioning, AP (Access Point) signal positioning and GPS (Global Position System) positioning are the three main indoor positioning technologies in the world. TOA is a common radio frequency ranging technology at present. Its principle is to obtain the distance between the sender and the receiver by measuring the transmission time of electrical signals. In indoor applications, serious multipath and non-line-of-sight phenomena cause large ranging errors ; AP positioning is to locate all the devices using the network under the coverage of the network through wireless signals. The disadvantage is that the positioning accuracy is poor; The distance resection method determines the position of the point to be measured, and its disadvantage is that the indoor acce...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01S11/14
CPCG01S5/30
Inventor 张凯程登良刘熙民王鹏陈恢妹
Owner HUBEI UNIV OF AUTOMOTIVE TECH