Method for detecting touchdown of lifting legs of mobile platform

A technology of a mobile platform and a detection method, applied to measurement devices, instruments, electrical devices, etc., can solve the problems of high maintenance costs, different internal pressures, cumbersome installation, etc., to achieve simple installation and debugging, improved performance and reliability, The effect of low energy consumption

Inactive Publication Date: 2011-02-02
SHENZHEN CADRO HYDRAULIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. In the traditional mobile platform lifting outrigger system, it is necessary to install a pressure sensor on each lifting outrigger to detect the ground contact of the lifting outrigger. The installation is cumbersome, the wiring is complicated, the maintenance cost is high, and the modularization of the system low level
[0005] 2. Due to the large difference in the load of the mobile platform, the internal pressure will also be different when the lifting outrigger touches the ground. After one setting, the ground contact detection effect of the mobile platform under different load conditions cannot be guaranteed to be consistent, which may easily cause the lifting outriggers to touch the ground. System malfunction

Method used

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  • Method for detecting touchdown of lifting legs of mobile platform
  • Method for detecting touchdown of lifting legs of mobile platform

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A method for detecting the touchdown of a lifting leg of a mobile platform. The mobile platform is equipped with a dual-axis inclination sensor. The lifting leg is a hydraulic support cylinder. The leveling control system of the mobile platform is composed of a single-chip microcomputer, a control circuit and a hydraulic control system. The mobile platform Supported by 4 hydraulic support cylinders (A, B, C, D) as outriggers. Each hydraulic support cylinder is controlled by a hydraulic control system. The hydraulic control system is controlled by a single-chip computer and a control circuit. The dual-axis inclination sensor is connected to the single-chip The single-chip microcomputer collects and processes the signal, and its detection method is shown in the attached figure 1 , Including the following steps:

[0024] a. The mobile platform leveling control system controls the A hydraulic support cylinder leg to extend until it touches the ground and the corresponding fulcr...

Embodiment 2

[0030] A method for detecting the touchdown of the lifting legs of a mobile platform. The mobile platform is equipped with a dual-axis inclination sensor. The lifting legs are supporting cylinders. The leveling control system of the mobile platform is composed of a single chip microcomputer, a control circuit and an air pressure control system. 4 cylinders (A, B, C, D) are used as outriggers for support. Each cylinder is controlled by a pneumatic control system. The hydraulic control system is controlled by a single-chip microcomputer and a control circuit. The dual-axis inclination sensor is connected to the single-chip microcomputer and the signal is collected by the single-chip microcomputer And processing, see attached figure 2 , Including the following steps:

[0031] A1. The mobile platform leveling control system controls the cylinder legs A and B (A and B legs are non-diagonal legs) at the same time, until one of the cylinder legs A and B touches the ground, and the plat...

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Abstract

The invention provides a method for detecting touchdown of lifting legs of a mobile platform. Hardware equipment comprises a dual-axis tilt angle sensor and a mobile platform leveling control system arranged on the mobile platform. The method comprises the following steps that: a, the mobile platform leveling control system controls a certain lifting leg of the mobile platform to stretch out until the lifting leg touches down and jacks up the mobile platform for a certain height, and the mobile platform leveling control system generates a control signal through detected output signal change of the dual-axis tilt angle sensor; b, the mobile platform leveling control system stops the stretch of the lifting leg through the control signal to complete the touchdown detection on the lifting leg; and c, performing touchdown detection on other lifting legs one by one according to the steps a and b until the touchdown detection on all lifting legs is completed. The method has the advantages that: the whole system is more miniature and integrated, and has lower energy consumption; and the installation and debugging are simpler, and the performance and reliability are improved.

Description

Technical field [0001] The invention relates to a detection technology for a lifting leg of a mobile platform before being automatically leveled. Background technique [0002] The existing mobile platform leveling system needs to detect the ground contact of the lifting leg before leveling. The traditional mobile platform leveling system detects the ground contact of the lifting leg: by adding a pressure on each lifting leg The sensor, when the lifting leg touches the ground, the pressure in the lifting leg increases immediately, so by detecting the change of the pressure in each lifting leg, it can reach the ground reliably. The dual-axis inclination sensor installed on the existing mobile platform is used to automatically level the mobile platform. The mobile platform control system judges whether the platform is level according to the output signal of the dual-axis inclination sensor, and then controls the lifting leg of the platform in the corresponding position Exercise and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30
Inventor 梁上愚樊萌于隽
Owner SHENZHEN CADRO HYDRAULIC EQUIP
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