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Method for drawing walking path under network-free condition based on Flutter framework and intelligent equipment

A smart device, no network technology, applied to smart devices, based on the Flutter framework to draw walking paths without network conditions, can solve the problems of high software implementation complexity, complex algorithms, poor robustness, etc., to reduce development costs and algorithms. Simple, good performance and smooth effects

Pending Publication Date: 2021-12-03
众能联合数字技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent application uses the feature matching algorithm to obtain the walking steps, and obtains the walking step frequency according to the difference between the time stamps between adjacent steps, and estimates the walking step length according to the relationship table between the step frequency and height, and then combines the direction and the step length, Although the calculation of walking trajectory improves the indoor positioning accuracy, the algorithm is more complicated, the software implementation complexity is higher, and the robustness is poor

Method used

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  • Method for drawing walking path under network-free condition based on Flutter framework and intelligent equipment
  • Method for drawing walking path under network-free condition based on Flutter framework and intelligent equipment
  • Method for drawing walking path under network-free condition based on Flutter framework and intelligent equipment

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Embodiment 1

[0058] The Flutter framework is an open source, cross-platform excellent framework, which has the advantages of smooth operation and low development cost. This embodiment provides a method for drawing a walking path based on the Flutter framework under the condition of no network, through the walking direction, acceleration and step length and other information returned by the sensors on the smart devices worn by pedestrians, using the Flutter framework to draw pedestrians The route of travel during walking. Such as figure 1 , the specific implementation steps are as follows:

[0059] Step 1: Build the Flutter development environment, first download and install the Java development environment (take JDK1.8 as an example) and FlutterSDK, and complete the configuration of environment variables. Download and install the Android Studio software, search for the Flutter plugin and complete the download and installation. Find the flutter_console.bat file under the flutter folder o...

Embodiment 2

[0082] This embodiment provides a kind of intelligent equipment, and described intelligent equipment is provided with triaxial acceleration sensor, direction sensor, counter and processor; It is used to obtain the direction data of pedestrians walking, the counter is used to obtain the number of steps walked by pedestrians, and the processor is used to obtain the acceleration, direction and steps of pedestrians walking from the smart terminal, and draw the walking path of pedestrians based on the Flutter framework.

[0083] In this embodiment, the direction data and the number of walking steps of the pedestrians are obtained from the data sent back by the smart device; the position coordinates of the pedestrians at each stage are calculated by the law of sine; the direction arrows are drawn according to the position coordinates and the direction data; Draw the coordinates and direction arrows of each position one by one, and use the drawLine method to connect the positions to f...

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Abstract

The invention discloses a method for drawing a walking path based on a Flutter framework under a network-free condition and intelligent equipment, and the method comprises the following steps: building a Flutter development environment, and drawing a canvas and a coordinate system by using the Flutter development environment; according to direction data returned by a direction sensor of the intelligent terminal equipment, converting the direction data into an angle and then drawing a direction arrow; obtaining the walking step number, calculating the walking distance according to the step length, and then determining the pedestrian position according to the sine theorem and carrying out drawing; and connecting the positions of all moments in the walking process so as to finish the drawing of the walking path. According to the invention, a Flutter framework is adopted to draw the walking path, so that the method can be used across various platforms while having smooth performance, and the development cost is greatly reduced. The drawing process can be carried out under the network-free condition, and the defect that a conventional method cannot be used in a garage, a tunnel and other network-free and signal-free environments is overcome.

Description

technical field [0001] The present invention relates to the technical field of drawing a walking path without a network, in particular to a method for drawing a pedestrian walking path without a network, specifically a method and an intelligent device for drawing a walking path without a network based on a Flutter framework. Background technique [0002] The drawing of walking path has become an important technology in people's life, and is widely used in various aspects of people's daily life. The drawing of the walking path can not only effectively prevent the loss of children or pets, but also plays a vital role in some specific occasions, such as the search for construction vehicles in the tunnel, the drawing of the moving path of firefighters in the fire scene, etc. [0003] With the continuous development of science and technology, satellite positioning systems are becoming more and more mature and widely used to draw walking paths. In addition to the GPS of the United...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32G06F16/29
CPCG01C21/32G06F16/29
Inventor 张登银赵远鹏徐业鹏张红星
Owner 众能联合数字技术有限公司
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