Vehicular satellite-positioning and navigation system
A navigation system and satellite positioning technology, which is applied in the field of vehicle-mounted satellite positioning and navigation systems, can solve the problems of unsatisfactory product performance and price ratio, reduce product practicability, waste of funds, etc., achieve strong price competitiveness, save hardware costs, reduce cost effect
Inactive Publication Date: 2009-04-01
广州市丰凌电器有限公司
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Problems solved by technology
[0003] The main problem of the existing car electronic map navigation products is that the cost is too high and cannot be accepted by ordinary consumers to achieve product popularization
The above-mentioned invention does not propose an effective solution to the cost problem of navigation products. The CD player of this invention is a standard peripheral input and output device compatible with the navigation system, rather than upgrading the existing CD player in the car to a navigation system. used, did not give full play to the functions of the original equipment, resulting in a waste of funds; in addition, the information retrieval method of the invention has high requirements on the operating speed of the hardware, which is not conducive to saving hardware costs, making the overall product performance and price ratio not ideal, and is not suitable for participating in the market. compete
In addition, the function of this product is still limited, and the potential functions of the navigation equipment have not been fully developed, which reduces the practicability of the product
Method used
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[0044] like figure 1 Shown, the hardware of the present invention comprises host computer, GPS receiver, map data card, monitor video output, voice output, GSM input port and the input port composition of remote controller, controller, keyboard, mouse, touch screen, anti-theft device. It uses the TMLH918 central processing unit as the core to connect with them respectively. The main unit adopts this form, and performs video switching on the existing VCD or DVD in the original car and the display screen attached thereto, so as to realize a system that plays VCD or DVD and has car navigation function at the same time.
[0045] like figure 2As shown, the internal structure of the motherboard of the present invention uses 32-bit RISC TMLH918 as the core processing unit, which is engaged in peripheral management and display platform management, and realizes all functions. 27C020 / 27C040 is the BIOS program memory of TMLH918. After the system is powered on, the program memory is f...
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The invention refers to a kind of car satellite localization and navigating system which combines the functions of satellite localization, electron map navigation, and intelligent burglar-resisting monitoring. The device includes: the host computer, GPS antenna, RF signal line connected to the car CD, the centre processor on the host computer is TMLH918 main control CPU, the software includes: heaven navigation operation system for external devices management and displaying platform management; a file manager for navigation; a fuzzing mathematics system and the self-debugging system, it uses isomorphic mapping method and black theory to calculate; it combines intelligent identification and fuzzing identification, the isomorphic mapping theory is combined with the discrete mathematics, and corrects and identifies the current channel; it uses Chinese character text and voice reading system; the CD HOST of TMLH918 upgrades the CD to VCD. The host computer of the invention is strong; it is special to the navigation and electron map process.
Description
technical field [0001] The invention relates to a vehicle-mounted navigation system, in particular to a vehicle-mounted satellite positioning and navigation system integrating satellite positioning, electronic map navigation, intelligent voice navigation and intelligent anti-theft monitoring. Background technique [0002] At present, the GPS navigation industry is developing rapidly, and the product technology is constantly improving. The invention application with the application number 01144744 (publication number: CN 1428596 A) discloses a vehicle-mounted satellite navigation system. GPS antenna, inertial navigation equipment, speedometer, remote controller, CD player, the host part includes a central processing unit (CPU), a GPS module connected to the central processing unit, and a multimedia controller (MMC) for storing map data card, a dynamic random access memory (SDRAM), a USBHOST controller, a program memory, a data memory, a display, an infrared port, and a speake...
Claims
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IPC IPC(8): G01C21/26
Inventor 鲍继怀
Owner 广州市丰凌电器有限公司