45results about How to "Weak correlation" patented technology

The invention discloses a gas concentration intelligent detection system, which is characterized in that: the system is composed of a gas environment parameter collection platform based on a wireless sensor network and a gas multi-level early warning module, and the gas environment parameter collection based on a wireless sensor network The platform realizes the detection of gas environment parameters, gas concentration adjustment and early warning. The gas multi-level early warning module is composed of a gas interval number neural network model, an interval number prediction model and an interval number GRNN neural network gas grade classifier; the invention effectively solves the problem of existing The gas concentration detection system does not detect the gas concentration according to the characteristics of non-linearity of gas changes, large hysteresis, and large working area and complex gas concentration changes, which greatly affects the accuracy of gas concentration detection.

The invention discloses a strawberry greenhouse temperature intelligent detection device based on an empirical mode decomposition model, which is characterized in that: the detection device includes a strawberry greenhouse environment parameter acquisition platform based on a CAN field bus and a strawberry greenhouse temperature intelligent prediction system; the present invention It not only effectively solves many problems in the traditional strawberry greenhouse environment due to unreasonable design, backward equipment, and imperfect control system, but also effectively solves the existing strawberry greenhouse environmental monitoring system. Due to the characteristics of non-linearity, large lag, and complex temperature changes of the strawberry greenhouse environment, the temperature of the strawberry greenhouse environment is monitored and predicted, which greatly affects the regulation of the strawberry greenhouse environment temperature.

The invention relates to a high-speed agricultural vehicle platform pre-detection active leveling system and leveling method, and belongs to the technical field of vehicle platform leveling. The high-speed agricultural vehicle platform pre-detection active leveling system includes a platform, a bracket, bases, a vehicle body, suspension brackets, wheels, a distance measuring sensor, a vehicle bodytilt angle sensor, a platform tilt angle sensor, a bracket tilt angle adjustment motor, a platform tilt angle adjustment motor and a central processor. In the process of walking operation of an agricultural vehicle, the vehicle body tilt angle sensor periodically reads the pitch angle and the roll angle of a vehicle body, and the distance measuring sensor periodically and synchronously measures the relative height information of the ground in front of the wheels, calculates the variable quantity of the pitch angle and the roll angle of the vehicle body at the next moment and pre-acquires theangle adjustment amount of the bracket tilt angle adjustment motor and the platform tilt angle adjustment motor under the condition of maintaining the platform level, and the two tilt angle adjustmentmotors complete the predetermined angle adjustment in an adjustment period, and realizes pre-detection active leveling of the platform of the agricultural vehicle during the walking operation.