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    • 5. 发明公开
    • WORK SUPPORT AND MANAGEMENT SYSTEM FOR WORKING MACHINE
    • ARBEITSUNTERST TZUNGS- UND -MANAGEMENTS SYSTEM F RARBEITSMASCHINE
    • EP1635003A4
    • 2009-04-15
    • EP04746327
    • 2004-06-17
    • HITACHI CONSTRUCTION MACHINERY
    • OGURA HIROSHIISHIBASHI HIDETOHATORI KEIJIWATANABE HIROSHI
    • E02F9/26E02F9/20G06T17/05
    • G07C3/08E02F9/26
    • A display table (47) and a display contents table (48) that are memory means exclusively used for display are provided in an excavation support database (40). A condition of a work region for each mesh is memorized in the display table (47), and an identification display method (display color) mapped to the condition of each mesh is memorized in the display contents table (48). The display contents table (48) is caused to refer to the condition (height) of each mesh in the display table (47) and a corresponding display color is read in. Then the conditions of work regions are displayed using different colors. This work support and management system can be used for different kinds of working machines and created at low cost and with ease.
    • 在挖掘支持数据库(40)中提供专门用于显示的存储装置的显示表(47)和显示内容表(48)。 每个网格的工作区域的条件被存储在显示表(47)中,并且映射到每个网格的条件的识别显示方法(显示颜色)被存储在显示内容表(48)中。 使显示内容表(48)参照显示表(47)中的每个网格的条件(高度)并读入相应的显示颜色。然后使用不同的颜色显示工作区域的条件。 这种工作支持和管理系统可以用于不同种类的工作机器,并且成本低且易于创建。
    • 7. 发明公开
    • DEVICE FOR CONTROLLING LIMITED-AREA EXCAVATION WITH CONSTRUCTION MACHINE
    • VORRICHTUNG ZUR REGULATION DER AUSHEBETIEFE EINER BAUNMASCHINE
    • EP0979901A4
    • 2000-06-14
    • EP98928541
    • 1998-06-18
    • HITACHI CONSTRUCTION MACHINERY
    • WATANABE HIROSHIFUJISHIMA KAZUOHAGA MASAKAZU
    • E02F3/43E02F9/22
    • E02F9/2296E02F3/437E02F9/2203E02F9/2285
    • A device for controlling limited-area excavation, wherein an area where a front device (1A) can move is set in advance; a control unit (9) calculates the position and attitude of the front device (1A) based upon signals from angle sensors (8a to 8c); a limit value (a) of the speed of the fore end of a bucket is calculated so as to limit the moving speed of the front device in a direction perpendicular to the boundary of the area, when the front device is close to the boundary of the preset area where the front device is; the limit value (a) is corrected by the load pressure of an arm cylinder (3b) sensed by a pressure sensor (41a); a limit value of the component, normal to the boundary of the preset area, of the speed of the fore end of the bucket moved by a boom is found from the limit value (a); and an operation signal of the boom is so corrected that the speed of the fore end of the bucket moved by the boom does not exceed the limit value. This makes it possible to excavate the preset area up to the boundary without being affected by the hardness of the soil to be excavated by using a simple program.
    • 预先设置前置装置1A可移动的区域。 控制单元9基于来自角度传感器8a-8c等的信号来计算前部装置1A的位置和姿势。当前部装置位于其边界附近的设定区域内时,控制单元9计算限制值a 铲斗前端速度使得前部装置沿与设定区域的边界垂直的方向的移动速度受到限制,然后根据由压力传感器41a检测到的手臂缸3b的负载压力来修正极限值a 。 另外,从极限值a进一步计算与起动区域的边界垂直的起重臂相关铲斗前端速度的分量的极限值,然后修改动臂运行信号,使得动臂依赖铲斗前端速度将 不超过上限值。 因此,地面可以挖掘到设定区域的边界,而不受待挖掘的地面的硬度的影响,同时重新获得简单的程序。