The release of new corn products must be tested, and the measurement of the characteristics of the test items for the ear use manual measurement methods. Manual measurement methods are subject to subjective errors, inconsistent standards, and low test efficiency. Automatic corn seeding machine based on machine vision technology to achieve automatic calculation of corn seed traits will greatly improve the efficiency of new varieties, provide fine data for the screening of new varieties. In machine vision-based automatic ear test system, image calibration algorithm is the key link, which directly affects the accuracy of automatic test data. In particular, the corn ear test is mostly performed outdoors, and the light environment has a certain influence on the image calibration algorithm.
Currently, image calibration algorithms mainly include traditional image calibration methods, image self-calibration methods, and active vision-based image calibration methods. The traditional image calibration method has high calibration accuracy and is suitable for conditional calibration requiring high precision and infrequent changes of camera internal and external parameters. The two-step method is a typical traditional image calibration method.
An image calibration algorithm that is insensitive to the light environment, first removes the error data (noise, disconnection, etc.) from the collected image data based on Bernoulli's Law of Large Numbers, and then reduces the random error by obtaining the average value of the data and improves the algorithm. Accuracy. The test results of automatic corn tester show that the algorithm is insensitive to the light environment and can meet the needs of outdoor automatic ear test system.
Add WeChat, you want to have: 
Bottom layer communication: M-BUS/485 collector and measurement meter transmit data by M-BUS/485 line with 4 channels, and can connect the meter according to any topological structure. Build in backup battery, could works for 48 hours normally, and the data can be saved for 10 years if power is cut off.
Middle layer communication: Middle layer communication means the communication between the concentrator and collector. This communication is by wireless RF way, no need of communication line. The wireless communication distance between the concentrator and collector can be about 3km at wide open area.
Upper layer communication: Communication methods indicate below can be selected between concentrator and management center:
(a) GPRS Communication Mode
(b)Telephone Line Communication Mode
(c) RS232 Communication Mode
(d) Ethernet Communication Mode
Dn50 Water Meter,Band Ultrasonic Water Meter,Digital Brass Body Ultrasonic Water Meter,Large-Caliber Ultrasonic Water Meter
SUZHOU YUEDA VALVE CO., LTD. , https://www.jsyuedavalve.com