Compass-based horizontal scanning ultrasonic distance measurement instrument

Abstract

The invention discloses a compass-based horizontal scanning ultrasonic distance measurement instrument, which consists of a controller, a measuring device, a balancing device, a power device and a data transmission device, wherein the controller is connected with the measuring device, a driving circuit of the power device and the data transmission device; the controller is a component which has control function and consists of a singlechip or a field programmable gate array (FPGA) chip or a digital signal processing (DSP) chip; the measuring device comprises an ultrasonic sensor and a rotary table; the balancing device comprises a compass and a balancing vertical pendulum; the power device consists of the driving circuit, a stepping motor and a transmission device; and the data transmission device consists of a serial level switch circuit, and realizes the function by using a max232 chip. When used on the unstable plane, the compass-based horizontal scanning ultrasonic distance measurement instrument ensures the horizontal distance between the measured object and the distance measurement instrument, and has the advantages of strong applicability, wide and flexible distance measurement angle, convenience of assembly and the like. The compass-based horizontal scanning ultrasonic distance measurement instrument has high practical value and wide application prospect in the technical field of electronic mapping equipment.

Description

(1) Technical field [0001] The present invention relates to an ultrasonic rangefinder, in particular to a horizontally scanning ultrasonic rangefinder based on a omnidirectional disk, which can ensure the horizontal distance between an object and the rangefinder to be measured all the time when it is placed on an unstable plane and works. It belongs to the technical field of digital electronic surveying and mapping equipment. (2) Background technology [0002] In order to enable mobile robots or other motion systems to avoid obstacles and walk automatically, it is necessary to equip a distance measuring system so that they can obtain the distance information from obstacles in time. Ultrasound is often used for distance measurement because of its strong directivity, low energy consumption, and long distance in the medium. The use of ultrasonic detection is often relatively fast, convenient, simple to calculate, easy to achieve real-time control, and can meet the requirements...

AI Technical Summary

Problems solved by technology

When judging, the information obtained by each group of sensors is different due to the location of the sensors and the different attitudes of the sensors during distance measurement, which will cause a large error in the comprehensive analysis, and the sensors with fixed positions will inevitably have test blind spots

In addition, when the motion system is walking on a bumpy road, or when performing certain tasks to change its overall attitude, the distance obtained by the sensor at the fixed position may no longer be the horizontal distance from the obstacle, which makes the application of fixed ranging equipment limited and require innovative design to compensate

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