4results about How to "Simple data collection" patented technology

The invention relates to the technical field of sewage treatment, and aims to solve the problems that an existing mode of manually adjusting the frequency of a fan and the opening degree of a valve is rough and not fine, the aeration rate is easy to excessively increase and the energy consumption is increased, and an existing precise aeration control system adopts a water quality analysis model and a fuzzy neural network controller and is small in application range, complex and high in investment cost. The invention provides a precise aeration control method and system based on an AAO process. The method comprises the steps that S1, water inlet data, water outlet data and process instrument data are monitored and collected; s2, setting an aerobic tank dissolved oxygen target value according to effluent ammonia nitrogen online monitoring data; s3, calculating the corresponding fan frequency or valve opening according to the difference between the actual value of the dissolved oxygen in the aerobic tank and the target value of the dissolved oxygen in the aerobic tank; s4, the fan frequency or the valve opening degree is automatically adjusted according to the fan frequency or the valve opening degree determined in the step S3; and S5, judging whether the adjustment of the fan frequency and the valve opening degree reaches the standard or not according to the effluent ammonia nitrogen data.

The invention discloses a shaft part radial total run-out error measurement method based on image processing. The method comprises the following steps: S1, acquiring an image of a measured part; s2, establishing an initial point cloud image based on a three-dimensional coordinate system O1 according to the image of the measured part; s3, in the initial point cloud image, determining the axis of the image by using a fitting algorithm; s4, establishing a new three-dimensional coordinate system Oe by taking the axis as a coordinate axis; s5, establishing a conversion matrix T between the three-dimensional coordinate system O1 and the three-dimensional coordinate system Oe, and converting the point cloud image data based on the three-dimensional coordinate system Oe into the point cloud image data in the three-dimensional coordinate system O1 through the conversion matrix T; and S6, calculating the distance from the midpoint of the point cloud to the Z axis, and obtaining an error value by using an error judgment method. According to the error measurement method, the problems of unreasonable reference establishment and inaccurate data acquisition in the prior art are solved.

This invention relates to the technical field of rope skipping training, specifically to a rope skipping training method and system, comprising the following steps: collecting the jump offset of the rope skipper to obtain a jump offset model, and using the variation model to predict whether the jumper's leg posture is standard; collecting the pixel difference of the jumper's posture offset to obtain an arm posture change offset model, and using the variation model to predict whether the jumper's arm posture is standard; determining whether the leg posture of any jump is qualified; determining whether the arm posture of any jump is qualified; and obtaining a rope skipping success rate model. The rope skipping training method of this invention estimates the first calculation result of rope skipping by collecting the jumper's jump offset, arm posture change offset, and jump frequency, until the calculation result of each rope skipping training session is obtained. The data collection is simple and has strong universality.

The utility model provides a data acquisition circuit and equipment of a hydrogen permeation electrochemical sensor, and relates to the technical field of electronic circuits. Comprising a hydrogen permeation electrochemical sensor electrode access circuit, a constant potential circuit with bias voltage, an analog-to-digital conversion circuit, a digital-to-analog conversion circuit, a reference circuit, an amplification circuit, a clock circuit, a core processing circuit, a storage circuit, a power management circuit and an output circuit. The hydrogen permeation electrochemical sensor electrode access circuit comprises a first electrode, a second electrode and a third electrode; the constant potential circuit is used for applying a constant potential within a measuring range between the first electrode and the second electrode; the digital-to-analog conversion circuit is connected with the core processing circuit, and the digital-to-analog conversion circuit regulates voltage and inputs the regulated voltage into the constant potential circuit; the analog-to-digital conversion circuit transmits the voltage signal; the storage circuit is used for storing the collected data; the output circuit is used for outputting the collected data, and the output circuit comprises a serial port transmission mode and a wireless transmission mode.