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Operation method for navigation hypothetical system using temperature sensor

A technology of temperature sensor and operation method, which is applied in the field of navigation inference system, can solve problems such as loss of fuel information, burden on service providers, etc., and achieve the effect of preventing position errors

Inactive Publication Date: 2007-03-07
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, in the long-distance transmission system that pays the information usage fee and receives the route information including the traffic information, when the wrong route information is received and the wrong route is driven, the fuel information is lost and the fuel information is re-requested. , which will impose a great burden on the service provider

Method used

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  • Operation method for navigation hypothetical system using temperature sensor
  • Operation method for navigation hypothetical system using temperature sensor
  • Operation method for navigation hypothetical system using temperature sensor

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Experimental program
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Embodiment Construction

[0031] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] First, the temperature compensation navigation estimation equation will be described.

[0033] FIG. 5 is a navigation estimation coordinate system viewed from the side of the vehicle for a common navigation estimation coordinate system. FIG. 6 is a navigation estimation coordinate system observed from the vehicle for a common navigation estimation coordinate system.

[0034] Referring to FIG. 5 and FIG. 6 , the vehicle speed in the navigation estimation coordinate system can be represented by the following [Math. 1].

[0035] 【Mathematical formula 1】

[0036] v ( k ) = v E ( k ) ...

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Abstract

This invention relates to one navigation estimation system operation method by use of temperature sensor, which comprises the following steps: if starting car, computing the basic position automatic navigation combination and fetching the memory car start position, angle, speed data; getting the system temperature information to acquire auto position, angle change and speed change positions information; comparing the fetched data stored and the data computed by above steps and when the difference is large, using the stored data and processing temperature compensation navigation estimation; when the difference is not large, processing the regular navigation computation without temperature compensation.

Description

technical field [0001] The present invention relates to a navigation reckoning system, particularly a navigation reckoning system using a temperature sensor that uses a temperature sensor that can prevent a positional error from occurring according to temperature changes when using an angle sensor that is affected by temperature. Background technique [0002] In order to calculate the absolute position information, the basic position service system developed at present basically uses the GPS system receiver. In order to generate position information when GPS signals cannot be received, a navigation reckoning system equipped with inertial sensors (speed / angle sensors) is used. In order to make up for their respective deficiencies, the above two systems are used in combination. The navigation estimation in the calculation of the combined system currently proposed is to use the output value of the angle sensor without considering the temperature, resulting in a large initial p...

Claims

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Application Information

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IPC IPC(8): G01C21/26
Inventor 曺一秀
Owner LG ELECTRONIC (HUIZHOU) CO LTD