45results about How to "Enable real-time evaluation" patented technology

The invention provides a digital urban energy refined service system. The digital urban energy refined service system comprises a signal processing unit, an an-site work station, a controller and issuing system, wherein the on-site work station is connected with the signal processing unit by network signals, the controller is connected with the on-site work station by signals and used for controlling the energy consumption of a served terminal, and the issuing system is connected with the signal processing unit by signals and used for issuing the digital processing result, the controller is connected with an illuminating system and an equipment system of the served terminal by signals, the on-site work station comprises an acquirer for acquiring the energy consumption information of mechanisms or buildings of the served terminal, a user control side is connected with the signal processing unit by signals, and a remote access terminal is in signal connection with the signal processing unit via the Internet. The digital urban energy refined service system realizes mass acquisition, mass access, online modeling, online energy saving, real-time control and real-time estimation on the building energy consumption information, remedies a domestic blank of the shortage of energy consumption evaluation systems, thereby being an intelligent scheme for building energy-saving equipment control.

The present invention provides a method and system for evaluating the state of blast furnace charge distribution. The evaluation method includes: collecting the action signal of the charge distribution device and the current charge information, and determining to enter the stage of charge distribution; collecting the characteristic parameters of the furnace condition in the charge stage to obtain The actual change situation of the furnace condition characterization parameter; according to the Cartesian product of the pre-acquired charge type, furnace condition characterization parameter and theoretical change situation, compare the actual change situation with the theoretical change situation, wherein the The theoretical change situation includes a standard cloth theoretical change situation and at least one abnormal type of abnormal cloth theoretical change situation; according to the comparison result between the actual change situation and the theoretical change situation, the current distribution situation is judged. The invention accurately and effectively correlates the furnace throat temperature, air supply pressure, etc. with the material distribution. Compared with relying on experience to infer the cause from many factors, the reliability of the evaluation result is improved, and the guiding significance for adjusting the blast furnace material distribution system is enhanced.

The invention discloses a method, device and computer-readable medium for evaluating video conference quality, and belongs to the technical field of artificial intelligence. The method includes: acquiring multimodal data of a video conference, where the multimodal data includes at least two kinds of modal data; respectively encoding the multimodal data to generate a multimodal representation; performing splicing processing on the multimodal representation or Add and process to generate a fusion vector; use the fusion vector as a training sample, use multiple training samples for model training, and generate an evaluation model; obtain the multi-modal data of the video conference to be tested; use the evaluation model to predict the multi-modal data to be tested , generating quality assessment results. Therefore, the video conference quality can be objectively evaluated based on the evaluation model, the accuracy and timeliness of the video conference quality evaluation are improved, and the problem of low accuracy rate of the video conference quality evaluation in the prior art is solved.

The present application relates to a road surface quality evaluation method and device based on a vehicle inertial measurement unit. The method includes: obtaining a plurality of accelerations and a plurality of angular velocities output by at least one axis of a vehicle-mounted inertial measurement unit in a sampling period; calculating respectively vibration frequencies and a plurality of accelerations output by the at least one axis in the one sampling period The vibration frequency of the angular velocity; respectively calculate the variance of the multiple accelerations and the variance of the multiple angular velocities output by the at least one axis in the one sampling period; according to the vibration frequency and variance of the multiple accelerations, and the multiple angular velocities Vibration frequency and variance of the vibration frequency, and calculate the road surface quality value of the road that the vehicle passes through in the one sampling period. The solution provided by this application can meet the real-time requirements for navigation and control of autonomous vehicles.

The invention discloses a real-time calculation method of a nonlinear error in arc tangent demodulation of a phase-generated carrier (PGC). Interference fringes produced by a laser interferometer aresimultaneously detected by two photoelectric detectors; and the detection centers of the two photoelectric detectors are spaced at a distance of a one-quarter-cycle interference fringe. When a measuring lens in the interferometer is moved, the to-be-measured phase of the interferometer is changed continuously; PGC demodulation is carried out on interference signals detected by the two photoelectric detectors to obtain demodulation phase values; difference processing is carried out on the demodulation phase values to obtain a phase difference; detection is carried out in real time and a peak-to-peak value of a nonlinear item of the phase difference is obtained and a non-linear error corresponding to the demodulation phase is calculated based on the peak-to-peak value. According to the invention, the non-linear error caused by the arc tangent demodulation of the PGC can be evaluated in real time. Compared with the traditional total harmonic distortion method, the real-time calculation method has the following advantages: the method is realized simply, the evaluation result is visual, and the real-time performance is good. And the method can be applied to evaluation of phase modulation non-linear errors of an interference-type optical fiber sensor or a self-mixing interferometer.

The invention discloses a self-confirmation type magnetic liquid micro differential pressure sensor which is suitable for micro differential pressure measurement. The device comprises a transparent glass tube (1), a first cylindrical hollow permanent magnet (2-1), a second cylindrical hollow permanent magnet (2-2), a first induction coil (3-1), a second induction coil (3-2), a first magnetic liquid ring (4-1), a second magnetic liquid ring (4-2), a first cylindrical permanent magnet (5-1), a second cylindrical permanent magnet (5-2), an iron core (6), a first limiter (7-1), a second limiter (7-2), an infrared range sensor (8) and a subtractor (9). The first cylindrical permanent magnet (5-1), the second cylindrical permanent magnet (5-2) and the iron core (6) commonly compose a composite magnetic core. The self-confirmation type magnetic liquid micro differential pressure sensor moves in the range limited by the limiters, the real-time estimation on the working state of the magnetic liquid micro differential pressure sensor is achieved under the action of the infrared range sensor (8) and the subtractor (9), and accurate measurement and safety production are ensured.