PROBLEM TO BE SOLVED: To appropriately perform application work under control of a number of revolutions of a delivery roll interlocked with a working speed of a vehicle body by starting the work after checking and setting a current accurate actual application amount of material to be applied in a hopper delivered by the delivery hopper.SOLUTION: A GPS vehicle-speed-interlocked application system comprises: an applicator A1 including a hopper 1, a delivery roll 2, and a drive motor 3 a GPS receiver A2 for receiving working speed information of a vehicle body B1 from GPS and a control device A3 for controlling a number of revolutions of the delivery roll 2 interlocked with the working speed of the vehicle body B1 from the GPS receiver A2. The control device A3 includes: low-speed amount adjusting means 11 and high-speed amount adjusting means 12 that rotate the delivery roll 2 at a low speed and a high speed for preset numbers of revolutions for prescribed times, respectively and actual application amount calculation means 13 that calculates an actual application amount per application hour from a total application amount of material to be applied M per area of a field by inputting respective measurement values for the low-speed rotation and the high-speed rotation that are acquired by a weighing instrument D from respective delivery amounts of the material M to be delivered from the current applicator A1 by the low-speed amount adjusting means 11 and the high-speed amount adjusting means 12.COPYRIGHT: (C)2015,JPO&INPIT【課題】繰出しロールにより繰り出されるホッパ内被散布物の現状の正確な実散布量を、作業開始前に確認設定した上で、車体の作業速度に連動させた繰出しロールの回転数制御のもとで適正散布作業を可能にすること。【解決手段】ホッパ1、繰出しロール2、駆動モータ3を有する散布装置A1、車体B1の作業速度情報をGPSから受信するGPS受信機A2、GPS受信機A2からの車体B1の作業速度に連動させて繰出しロール2の回転数を制御する制御装置A3を備え、制御装置A3は、繰出しロール2を予め設定された回転数の低速回転と高速回転により所定時間回転させる低速調量手段11および高速調量手段12と、低速調量手段11および高速調量手段12により現状の散布装置A1から繰り出される被散布物Mのそれぞれの繰出し量から秤D計量により得られる低速回転時と高速回転時のそれぞれの計量値を入力することで、圃場の面積当たりの被散布物Mの総散布量から散布作業の時間当たりの実散布量を算出する実散布量算出手段13を備えている。【選択図】図5
