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Navigational satellite signal receiving module and information processing method applied to same

A technology of a signal receiving module and an information processing method, which is applied in the field of navigation satellite signal receiving modules, can solve the problems of increasing the user MCU port occupation and resource expenditure, increasing the design complexity of the GNSS receiving terminal system, etc., so as to save port occupation and processing expenses , the effect of improving the accuracy

Inactive Publication Date: 2011-01-19
TECHTOTOP MICROELECTRONICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This increases the port occupation and resource expenditure of the user's MCU, and increases the complexity of the GNSS receiving terminal system design

Method used

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  • Navigational satellite signal receiving module and information processing method applied to same
  • Navigational satellite signal receiving module and information processing method applied to same
  • Navigational satellite signal receiving module and information processing method applied to same

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] figure 2It is a hardware block diagram of the navigation receiving terminal of the present invention. The GNSS satellite signal is received through the antenna, and processed on the board by amplification, filtering, frequency conversion, etc., and the satellite signal is processed into an intermediate frequency digital signal. The GNSS satellite signal enters the navigation receiving module 2 through the antenna input module 1, and after the radio frequency processing unit 21 performs signal amplification, filtering, frequency conversion and other processing, the satellite signal is proce...

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Abstract

The invention relates to a navigational satellite signal receiving module, comprising a radio frequency input unit, a base band processing unit, a sensor unit and a information output unit; wherein the radio frequency input unit is used for receiving a navigational satellite signal and outputting a digital intermediate frequency signal, the base band processing unit is used for acquiring satellite navigation information and positioning and resolving the current position of the receiving module, the sensor unit is used for acquiring the speed, acceleration or directional information of the current receiving module and outputting the speed, acceleration or directional information to the base band processing unit, and the information output unit is used for outputting the current position of the receiving module in NMEA format. By adopting the technical scheme of the invention, processing on sensor information of a user MCU can be eliminated, only a UART interface reported by a navigation message is processed, and navigation positioning information of NMEA-0183 and sensor information can be simultaneously acquired and reported. Thus, user demand can be met flexibly, not only accuracy of positioning is improved, but also port occupancy rate and processing overhead of the user MCU are reduced. The invention can be applicable to navigational satellite positioning systems such as GPS, Beidou navigation satellite system, GLONASS and Galileo navigation satellite system.

Description

technical field [0001] The invention relates to a navigation satellite signal receiving module and an information processing method for the module, especially a navigation receiving module with built-in sensors such as speed / direction / acceleration. Background technique [0002] GNSS (Global Navigation Satellite System, Global Navigation Satellite System) can provide positioning, navigation and timing information quickly, accurately and all-weather, and has been widely used in recent years. However, in places with poor satellite signals such as high-rise urban areas, boulevards, culverts, and deep mountain valleys, the above functions of GNSS often fail. In order to achieve vehicle positioning and navigation under the above circumstances, it is necessary to use some special method to make up for the shortcomings of pure GNSS positioning. The combined vehicle navigation positioning that combines Dead Reckoning (DR, Dead-Reckoning) with GNSS positioning is a commonly used and ...

Claims

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Application Information

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IPC IPC(8): G01S19/13G01S19/35G01S19/47
Inventor 朱莹
Owner TECHTOTOP MICROELECTRONICS
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