To enable dangerous behavior such as dashing, jumping and overturning of a walking work vehicle to be more reliably detected.SOLUTION: A dangerous behavior detection device for a walking work vehicle comprises : an acceleration detection sensor detecting at least one of the longitudinal acceleration and the vertical acceleration of the walking work vehicle; a threshold determination unit 23 determining whether or not the acceleration after undergoing filtering processing by filter processing unit 22 exceeds a predetermined threshold; a frequency determination unit 24 determining whether or not the frequency at which the acceleration exceeds the predetermined threshold is a predetermined level or more; and a dangerous behavior detection unit 25 detecting the occurrence of the dangerous behavior in the walking work vehicle when determined that the frequency is the predetermined level or more. A rotational speed of a running wheel having a value being not greatly varied even if the dangerous behavior occurs is not detected, but acceleration having a value being greatly varied when the dangerous behavior occurs is detected, and the presence or absence of the occurrence of the dangerous behavior is determined on the basis of the detected acceleration, and accordingly the occurrence of the dangerous behavior can be detected more reliably.SELECTED DRAWING: Figure 2

    【課題】歩行型作業車両のダッシング、跳ね上がり、転倒といった危険挙動をより確実に検出できるようにする。【解決手段】歩行型作業車両の前後方向の加速度および上下方向の加速度の少なくとも一方を検出する加速度検出センサと、フィルタ処理部22によるフィルタ処理後の加速度が所定の閾値を上回ったか否かを判定する閾値判定部23と、加速度が所定の閾値を上回ると判定された頻度が所定レベル以上か否かを判定する頻度判定部24と、頻度が所定レベル以上であると判定された場合に、歩行型作業車両に危険挙動が発生していることを検出する危険挙動検出部25とを備え、危険挙動が発生しても大きく値が変動しない走行車輪の回転速度ではなく、危険挙動が発生した場合に値が大きく変動する加速度を検出して危険挙動の発生の有無を判定することにより、危険挙動の発生をより確実に検出することができるようにする。【選択図】図2


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    Title :

    DANGEROUS BEHAVIOR DETECTION DEVICE FOR WALKING WORK VEHICLE


    Additional title:

    歩行型作業車両用の危険挙動検出装置


    Contributors:

    Publication date :

    2019-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / B62D MOTOR VEHICLES , Motorfahrzeuge



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