Unlock instant, AI-driven research and patent intelligence for your innovation.

A test method for inertial measurement unit output based on spi bus communication protocol

A technology of inertial measurement unit and SPI bus, which is applied in the direction of measuring devices and instruments, can solve problems such as high bit error rate, and achieve the effect of saving cost and improving test efficiency

Active Publication Date: 2019-04-09
BEIJING INST OF AEROSPACE CONTROL DEVICES
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: overcome the deficiencies in the prior art, provide a kind of testing method of the inertial measurement unit based on the SPI bus communication protocol output, solve the problem of high bit error rate caused by directly testing the test computer as the SPI master

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A test method for inertial measurement unit output based on spi bus communication protocol
  • A test method for inertial measurement unit output based on spi bus communication protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A specific embodiment of the method of the present invention is given below.

[0020] (1) Connect the test equipment to the inertial measurement unit output by three sets of SPI bus communication protocols, such as figure 1 As shown; the connection of three sets of inertial measurement unit and test equipment includes MISO (test equipment data input, inertial measurement unit data output), MOSI (test equipment data output, inertial measurement unit data input), SCK (clock signal, by the test equipment Generated), SS (chip select, inertial measurement unit enable signal, controlled by the test equipment). The test equipment can respectively enable the IMU 1 , IMU 2 , and IMU 3 through different chip select pins SS1 , SS2 , and SS3 .

[0021] (2) Connect the serial port on the test equipment to the test computer, such as figure 2 shown.

[0022] (3) When the system is powered on, the chip select signals SS1, SS2, and SS3 of the test equipment are all at high level.

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a testing method for an inertial measurement unit based on SPI bus communication protocol output.The testing method includes the steps that testing equipment and the inertial measurement unit based on SPI bus communication protocol output are connected; a serial port in the testing equipment and a testing computer are connected; the system is powered on, and the testing equipment collects output data of the inertial measurement unit based on the SPI bus communication protocol and sends a new data frame to the testing computer through the serial port; the testing computer collects the data, and the inertial measurement unit based on SPI bus communication protocol output is tested.The problem that the error rate is large as the testing computer is directly used as SPI main equipment for testing is solved.

Description

technical field [0001] The invention relates to a method for testing an inertial measurement unit, in particular to a method for testing an inertial measurement unit based on an SPI bus communication protocol output, belonging to the field of inertial measurement unit test methods, and can be used to test the inertial measurement unit output by an SPI bus communication protocol occasion. Background technique [0002] SPI (Serial Peripheral Interface, Serial Peripheral Interface) is a high-speed, full-duplex, synchronous communication bus introduced by Motorola. It works in a master-slave manner, and is mainly used in high-speed communication between microprocessors and peripherals. It has the characteristics of fast speed, simple communication protocol, and less pin occupation. It is a commonly used standard interface, which is easy to use and saves system resources. The SPI bus communication protocol usually has a master device and one or more slave devices, which require...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 黄超张帅罗强力李鹏孙丽艳
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES