We know that inertial navigation uses an inertial measurement unit (IMU) composed of gyroscopes and accelerometers to measure the angular velocity and acceleration information of a carrier, and integrates these measurements to obtain the carrier’s velocity and displacement. Today, the sensor experts at Sensor Expert Network will introduce a measurement instrument based on inertial measurement sensor technology - the pipeline 3D attitude measurement instrument. Let’s take a look.
As a common instrument for precision attitude (trajectory) measurement of underground pipelines, the pipeline attitude measurement instrument is a precision measurement instrument for the spatial three-dimensional attitude of pipelines based on MEMS inertial measurement units. This type of product integrates an inertial navigation measurement unit, lithium batteries, DSP, and massive storage units internally, and can complete data collection without external auxiliary equipment. It adopts a full metal seal structure and an adaptive shrinking guide device, which can adapt to the traction and passage of pipelines of various inner diameters, resist impact, and always keep the measurement unit on the pipeline’s centerline. It is mainly used for the completion measurement of trenchless construction in the underground pipeline industry, such as electric power, gas, and water supply.
During use, the pipeline attitude measurement instrument can measure its three-axis attitude angle or angular velocity, current acceleration, and travel distance through the inertial measurement sensor device. Through integration algorithm analysis and calculation of these attitude angles, the three-dimensional attitude of the pipeline can be obtained. In a complex urban environment, this type of instrument can accurately measure three-dimensional data of underground pipelines, especially suitable for completion measurement and positioning of pipelines.Currently, existing network and well room detection technologies include ground detection and underground detection. Ground detection mainly uses radar, infrared, and ultrasonic methods to locate and inspect pipelines. Although direct detection on the ground, the efficiency of detection is low, and the accuracy of detection cannot be guaranteed, and requires certain technical skills of detection personnel. The cost of detection equipment is also relatively high.Underground detection technology includes laser radar, closed-circuit television, and underground robots. Although laser radar can theoretically detect pipeline networks accurately, it is difficult to detect well rooms. The equipment is expensive, hard to operate, and requires high skills from operators and detection personnel. The results are not intuitive and have low practicality.
In order to obtain accurate position information for trenchless pipeline construction and make scientific use of underground space, the pipeline 3D attitude measurement instrument is used to accurately measure and position the pipeline for non-excavated pipeline construction, thereby solving practical problems that other detection methods cannot solve.It should be noted that in practical applications, the measurement accuracy of the pipeline 3D attitude measurement instrument is not only limited by the built-in core inertial sensor measurement unit but also closely related to the structural stability of the instrument during operation. Therefore, maintaining the structural stability of the measurement pipeline is also one of the prerequisites for the accurate data obtained by the 3D attitude measurement instrument.
The above is the principle and application of the pipeline3D attitude measurement instrument, a measurement instrument based on inertial measurement unit (IMU) inertial sensor technology, introduced by Sensor Expert Network. In the future, Sensor Expert Network will continue to bring you more technology applications related to inertial attitude detection sensors such as accelerometers, gyroscopes, and IMUs. Stay tuned.
--------------------- 作者：传感器资讯 来源：传感器专家网 原文:https://www.sensorexpert.com.cn/article/1606.html 版权声明：本文由传感器专家网整理发布，转载请注明出处和链接！