A method and system for realizing high-precision positioning of intelligent terminals based on Android system
A smart terminal and system implementation technology, applied in location information-based services, program control design, instruments, etc., can solve the problems of not eliminating GPS errors, large hardware size, inconvenient portability, etc., to improve user experience and reduce complexity sexual effect
Active Publication Date: 2021-06-04
广东星舆科技有限公司
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[0002] At present, although there are many high-precision positioning devices, such as trackers, children's watches, etc., most of these devices are just a GPS locator, which does not eliminate GPS errors, and can only provide positioning tracking, and cannot use its positioning results for More things, now that intelligent life is becoming more and more popular, many scenarios need to use high-precision positioning to complete more tasks, and this high-precision positioning can be realized on Android phones or other smart terminals with the largest market share The application of the demand is very urgent
[0003] The existing type of intelligent terminal is to add a calculation hardware with a calculation module installed outside the intelligent terminal. The intelligent terminal transmits data to this calculation hardware for high-precision calculation and then transmits it back to the intelligent terminal that needs positioning. But such hardware is bulky and inconvenient to carry
[0004] Existing applications based on the Android platform, such as AutoNavi Maps, Baidu Maps, and Tencent Maps, provide positioning and navigation functions. Although they can meet the travel needs of most people, they also provide certain location corrections for positioning, such as navigation routes. When planning, the positioning results that deviate from the road will be artificially pulled onto the road, so that the navigation results appear to be accurately positioned on the road, but this kind of GPS error is not really eliminated, and there are often large errors. Many scenes in life require high-precision positioning
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[0020] The exemplary embodiments will be described in detail below, and the implementations described in the provided examples represent some preferred implementations of the present invention, but not all implementations. All other embodiments that can be obtained by those skilled in the art based on the embodiments and pictures and texts in the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] The android system architecture has four layers, from high to low are applications layer (application layer), application framework (application framework layer), HAL (android hardware abstraction layer, hardware abstraction layer) and Linux Kernel (kernel layer). Among them, the kernel layer provides underlying drivers for various hardware of the android device, such as display drivers, audio drivers, camera drivers, Bluetooth drivers, GPS chip drivers, and the like. The kernel adopts the GPL agreement, and the hardwar...
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The invention relates to the technical field of high-precision satellite positioning, and discloses a method and system for realizing high-precision positioning of intelligent terminals based on an android system. The hardware access layer transmits GNSS raw data obtained from the kernel layer to the abstract sublayer; the abstract sublayer passes Its data callback interface transmits the GNSS raw data to the high-precision calculation module of the HAL layer; the high-precision calculation module calculates the GNSS raw data to obtain the positioning result data, and the high-precision calculation module transmits the positioning result data to the An abstract sublayer; the abstract sublayer reports the positioning result data to the application framework layer through the android standard interface; the application framework layer then reports the positioning result data to the application layer through the android standard interface. Just add a high-precision calculation module to the HAL layer, and each app (application layer) can obtain high-precision first positioning result data. At the same time, when the network is not good, each app can also obtain lower-precision second positioning result data , reducing the complexity of O&M and improving user experience.
Description
technical field [0001] The invention relates to the technical field of high-precision satellite positioning, and discloses a method and a system for realizing high-precision positioning of an intelligent terminal based on an android system. Background technique [0002] At present, although there are many high-precision positioning devices, such as trackers, children's watches, etc., most of these devices are just a GPS locator, which does not eliminate GPS errors, and can only provide positioning tracking, and cannot use its positioning results for More things, now that intelligent life is becoming more and more popular, many scenarios need to use high-precision positioning to complete more tasks, and this high-precision positioning can be realized on Android phones or other smart terminals with the largest market share The application of the demand is very urgent. [0003] The existing type of intelligent terminal is to add a calculation hardware with a calculation module...
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IPC IPC(8): H04W4/02H04W4/024H04W64/00G06F9/448
CPCG06F9/4482H04W4/023H04W64/006H04W4/024
Inventor 陈晓东关瑞成
Owner 广东星舆科技有限公司