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Concavity-convexity analysis method, concavity-convexity analysis device, and recording medium

A technology for recording media and analyzing programs, which can be used in measuring devices, control devices, transportation and packaging, etc., and can solve problems such as the decrease in the accuracy of concave-convex detection

Inactive Publication Date: 2018-08-31
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the same measurement threshold is used to detect the unevenness of the road surface regardless of the driving condition of the vehicle, the detection accuracy of the unevenness will be reduced.

Method used

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  • Concavity-convexity analysis method, concavity-convexity analysis device, and recording medium
  • Concavity-convexity analysis method, concavity-convexity analysis device, and recording medium
  • Concavity-convexity analysis method, concavity-convexity analysis device, and recording medium

Examples

Experimental program
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Effect test

Embodiment approach 1

[0024] (An example of unevenness analysis method)

[0025] figure 1 It is an explanatory diagram showing an example of the unevenness analysis method of the road surface according to the first embodiment. exist figure 1 Among them, the roughness analysis device 100 is a computer that analyzes the movement data of the mobile body 110 based on analysis parameters to analyze the roughness of the road surface on which the mobile body 110 moves.

[0026] Here, the mobile body 110 refers to an object that can move on a road by power such as an internal combustion engine or human power. Specifically, for example, the mobile body 110 is a vehicle such as an automobile, a motorcycle, or a bicycle that moves on a road using wheels, or a snowmobile that moves on a snow surface using a sled. In addition, the road surface refers to the surface of a road. Road surfaces include snow and ice.

[0027] The unevenness of the road surface refers to an uneven portion on the road surface. Fo...

Embodiment approach 2

[0048] (Example of system configuration of system 200)

[0049] Next, an example of the system configuration of the system 200 according to Embodiment 2 will be described. Note that the description of the same parts as those described in Embodiment 1 will be omitted.

[0050] figure 2 It is an explanatory diagram showing an example of the system configuration of the system 200 . exist figure 2 Among them, the system 200 includes a concave-convex analysis device 201, a driving data measurement device 202 (in figure 2 2 in the example), and vehicle 203 (in figure 2 2 units in the example). In the system 200 , the unevenness analysis device 201 and the driving data measurement device 202 are connected via a wired or wireless network 220 . The network 220 is, for example, a LAN (Local Area Network, local area network), a WAN (Wide Area Network, wide area network), the Internet, or the like.

[0051] The unevenness analysis device 201 is a computer that analyzes the unev...

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Abstract

The invention relates to a concave-convex analysis method, a concave-convex analysis device and a recording medium. The concave-convex analysis device (100) acquires driving data of a vehicle (110). The concave-convex analysis device (100) determines the driving data of the vehicle (110) within a specified time or within a specified distance from the stopped state based on the vehicle (110) driving status represented by the acquired driving data of the vehicle (110) . The concave-convex analysis device (100) compares the driving data belonging to the specified driving data with the driving data not belonging to the specified driving data when the driving data of the vehicle (110) indicates movement at the same speed. Bump detection on road surfaces with reduced sensitivity.

Description

technical field [0001] The present invention relates to a concave-convex analysis program, a concave-convex analysis method, a concave-convex analysis device, and a recording medium. Background technique [0002] The road surface may be uneven due to the load of vehicles such as automobiles and motorcycles, the passage of time over many years, or the deterioration of the natural environment. For example, unevenness of the road surface occurs due to cracks in the road surface, subsidence of the road surface, cracks caused by earthquakes, and obstacles such as stones. Since the unevenness of the road surface affects the safety of vehicles running on the road surface, it is preferable to discover the unevenness of the road surface at an early stage and repair it. [0003] As a related prior art, there is, for example, a technique in which an acceleration sensor is mounted on a vehicle, vibration during running of the vehicle is measured as an acceleration, and unevenness of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C7/04E01C23/01G01B21/00
CPCE01C23/01G01C7/04B60W40/06G01P15/00B60T2210/10B60T2210/14B60W2420/905B60W2540/10B60W2540/12G01B21/30
Inventor 谷弘幸十时伸麻生哲也
Owner FUJITSU LTD
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