A kind of airborne measurement device and method of rotor co-taper based on pc/104 embedded system
An embedded system and measurement device technology, applied in measurement devices, optical devices, instruments, etc., can solve problems such as inability to carry out airborne, helicopter performance impact, online measurement and monitoring, and achieve non-contact operation and high measurement accuracy. , The effect of simple and safe operation
Active Publication Date: 2019-04-26
NANCHANG HANGKONG UNIVERSITY
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The measurement accuracy of this method is high, but since the catadioptric panoramic camera is installed on the helicopter hub, it will have a serious impact on the performance of the helicopter
Existing rotor co-conicity measurement methods can only be measured and debugged when driving on the ground, and cannot be carried out on-board on-line measurement and monitoring
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] The present invention will be further described in detail below in conjunction with the drawings. The implementation of the present invention includes three aspects: hardware system design, software system design, and measurement method design. The specific implementation of each part is as follows.
[0043] 1. Hardware system design and implementation method of measuring device
[0044] 1) The hardware composition of the measuring device;
[0045] In order to meet the three special requirements of helicopter rotor large-scale measurement scenarios, high-speed dynamic measurement, and on-board measurement installation during flight, the schematic diagram of the appearance design and the block diagram of the hardware composition of the device of the present invention are as follows: figure 1 with figure 2 As shown, the power supply module 1, the binocular stereo vision system 2 and the PC / 104 embedded system 3 are the core functional modules of the device; the transparent glas...
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
Login to View More Abstract
The invention relates to a PC / 104 embedded system-based airborne measurement device and method for rotor co-taper. Measuring devices include: binocular stereo vision system, PC / 104 embedded system, external trigger module, power supply module, configuration tools, measurement markers, etc. The measurement methods include: a binocular stereo vision system calibration method and a real-time measurement method of rotor co-conicity. Before the measurement, the configuration tool is connected to the measurement device through the Gigabit Ethernet interface to complete the parameter configuration of the measurement device and the calibration of the binocular stereo vision system; during the measurement, the binocular stereo vision system performs binocular image acquisition of the blade according to the trigger signal of the external trigger module , and then real-time image processing and three-dimensional coordinate calculation, and finally using the space distance method to calculate the rotor co-taper parameters, and real-time measurement results are sent to the airborne data acquisition system through the RS485 bus. The invention has the advantages of airborne measurement, high precision, non-contact, simple and safe operation.
Description
Technical field [0001] The present invention relates to a device and method in the technical field of computer vision. Specifically, it is an airborne measurement device and method for helicopter rotor co-conicity based on PC / 104 embedded system and binocular stereo vision system, which can be applied to rotors Airborne measurement of common taper. Background technique [0002] The rotor is the core component of the helicopter. The high-speed rotation of the rotor blades generates the lift and thrust required for the helicopter to fly. Rotor common taper refers to the different conical surfaces formed by different blades of the helicopter rotor during flight, reflecting the degree of overlap of the taper angles of each conical surface. The co-conicity of the rotors directly affects the safety and comfort of the helicopter and the accuracy of the weapon system. Repeated measurement and debugging are required in the development, production and daily maintenance of the helicopter. ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26G01B11/00
CPCG01B11/00G01B11/26
Inventor 欧巧凤熊邦书饶智博赵平均莫燕
Owner NANCHANG HANGKONG UNIVERSITY