9results about How to "Simple signal processing" patented technology

The invention relates to the technical field of data acquisition, in particular to a multi-channel intelligent acquisition-based control and acquisition system, which comprises a signal quality evaluation module, a signal optimization adjustment module, an abnormal signal detection module, a resource scheduling control module, a data synchronization adjustment module and a cloud backup strategy module. According to the invention, by analyzing the amplitude and frequency components of the signal in real time, noise and distortion can be identified and corrected in real time, signal processing is optimized, the accuracy and availability of data are improved, the real-time optimization processing of the signal improves the processing quality of the signal, and the high efficiency of data synchronization and cloud backup is ensured; by dynamically adjusting the synchronous bandwidth and period, data changes can be flexibly responded, the risk of data delay and loss is reduced, intelligent detection and resource scheduling of abnormal signals are achieved, the response speed and maintenance efficiency of the system are improved, and the stability and safety of the whole system are improved through accurate resource allocation and timely maintenance response.

The invention provides an ultrasonic partial discharge signal compression and reconstruction method, a computer device and a storage medium. The method comprises the following steps: acquiring an original ultrasonic partial discharge signal; de-noising processing is carried out on the original ultrasonic partial discharge signal to obtain a de-noised partial discharge signal; performing down-sampling on the de-noised partial discharge signal to obtain a down-sampled partial discharge signal; performing framing processing on the down-sampling partial discharge signal to obtain a framing signal with a preset length, and performing windowing processing on the framing signal to obtain a windowing signal array; performing discrete cosine transform on the windowing signal array to obtain a corresponding framing data array; quantizing the framing data array to obtain a compressed data set consisting of data exceeding a preset threshold in each frame and a position array of a position sequence number corresponding to the data in the compressed data set in the framing data array; and compressing the compressed data set and the position array to obtain compressed data. By applying the method, the signal compression efficiency can be improved on the premise of ensuring the high fidelity of the signal, and the efficient transmission of the ultrasonic partial discharge signal between the narrowband network and the low-power consumption terminal is ensured.

This application provides a signal processing method, apparatus, Hall sensor, medium, and product. The method includes: acquiring a copy of a signal to be processed from the Hall sensor and clamping the signal in the i-th signal period of the copy; if the signal to be processed is free from electromagnetic interference, determining a signal conversion threshold based on the DC component in the i-th signal period of the signal to be processed; if the signal to be processed is subject to electromagnetic interference, determining the signal conversion threshold based on the DC component in the i-th signal period of the copy; and converting the signal in the (i+1)-th signal period of the signal to be processed into a pulse signal based on the signal conversion threshold. This solution simplifies signal processing by converting the signal to be processed into a pulse signal. When electromagnetic interference is present, signal conversion based on the clamped signal can correct signal loss caused by electromagnetic interference, thereby improving the accuracy of the Hall sensor's sensing results.

The invention is suitable for the technical field of rotor angle subdivision, and provides a rotor angle subdivision method and device, computer equipment and a storage medium. The subdivision method of the rotor angle comprises the following steps: acquiring an overturning signal corresponding to an orthogonal pulse signal of an encoder; obtaining a to-be-subdivided angle of the overturning signal; determining the total subdivision step number of the angle to be subdivided according to the time difference between the rising edge and the falling edge of the overturning signal; and determining the current subdivision angle of the rotor according to the total subdivision step number and the angle to be subdivided. The control precision can be obviously improved under the condition of not depending on an encoder with a higher specification.

Bioreactor (1) with a vessel (13), an end plate (11), a stirrer, a drive unit (15), at least one field device (50, 50a, 50b) arranged in an interior space (14), the field device having field device electronics and a data transmission unit arranged on the end plate (11), the data transmission unit having a motor head (40) which can be signal-technically coupled with an analysis unit and energy-technically coupled with the drive unit (15) and comprises motor head electronics, and at least one communication unit signal-technically coupled with the motor head (40), comprising an adaptation part (20, 20a, 20b) with adaptation electronics, the adaptation electronics being electrically connected with the field device electronics of the field device (50, 50a, 50b), the adaptation electronics and / or the communication electronics comprising a signal converter, and a communication part (20, 20a, 20b) with communication electronics, the communication electronics being electrically connected with the adaptation electronics and the motor head electronics, the adaptation part (20, 20a, 20b) and the communication part (20, 20a, 20b) being configured as separate, mutually couplable components, the motor head (40) being configured as a separate component which can be coupled with the communication unit.

The utility model provides an FMCW multipath laser radar transmit-receive device comprising a seed light source, a phase-locked loop, a photon integrated chip, an erbium-doped fiber amplifier, a 1 * 4 optical switch, a circulator, a PBS beam splitter and a reflector. The seed light source is used for emitting signal light, and the signal light enters the erbium-doped optical fiber amplifier after passing through the phase-locked loop and the photonic integrated chip and then enters the 1 * 4 optical switch; the 1 * 4 optical switch is coupled with four circulators, a PBS (Phosphate Buffer Solution) and a reflecting mirror so as to correspond to scanning of four spaces, and detected signal light of an object enters the photon integrated chip and then is transmitted into the phase-locked loop for coherence with local oscillation light for signal processing; and the 1 * 4 optical switch is used for switching a scanning space.

The invention provides a photoelectric detection data secure transmission method, and relates to the technical field of data communication, and the method comprises the following steps: obtaining a photoelectric data signal and a readable wavelength range; acquiring parameters between the photoelectric detection equipment and the relay point; modulating the data signal to obtain a modulated signal; the photoelectric detection equipment sends the modulation signal to a preset signal relay point, so that the wavelength of the modulation signal reaching the preset signal relay point after frequency offset is within a readable wavelength range; and the preset signal relay point encrypts the acquired signal and sends the encrypted signal to the acquisition center. Signal processing is simple, high-precision photoelectric signals can be processed, the photoelectric signals are effectively modulated through the characteristics of the photoelectric signals and the frequency deviation characteristics caused by relay satellite displacement, only the relay satellite can obtain the effective photoelectric signals, the high-performance relay satellite encrypts the effective photoelectric signals and transmits the effective photoelectric signals back to the ground, and the signal processing efficiency is improved. And the risk of signal interception leakage caused by insufficient encryption capability of the detection small satellite is effectively avoided.

The embodiment of the invention discloses a multi-network target sensing system and a sensing method thereof, the sensing system comprises a plurality of communication and sensing integrated base stations, all the communication and sensing integrated base stations are arranged on the same horizontal plane, all the communication and sensing integrated base stations periodically send signals all around, and when a certain base station detects that a target appears, the target is sent to the sensing system. The other base stations around the base station continuously detect a target appearance area, the system obtains a vertical arrival angle and a horizontal arrival angle from a transmitting signal of the target to each base station, calculates the position of the target according to the obtained vertical arrival angle and horizontal arrival angle, and obtains the speed of the target according to the frequency change of the transmitting signal of the target; and the movement direction of the target is obtained by using the change of the target position information of the base station in two sensing periods, so that the sensing of the target position information and the movement information is completed. According to the invention, the sensing is more reliable, the signal processing process is optimized, the time delay of signal processing is greatly reduced, and the performance of simultaneous communication of the system is improved.

The present invention provides a circumferential fixed-moving combined capacitive sensor and coding positioning method, belonging to the field of sensor technology, comprising a first cylinder; a plurality of fixed pole plates, fixedly arranged in the wall of the first cylinder, and the plurality of fixed pole plates are equidistantly distributed in the circumferential direction; a second cylinder, sleeved on the outer periphery of the first cylinder; a rotating pole plate, fixedly arranged in the wall of the second cylinder; the rotating pole plate is made to overlap with a certain fixed pole plate, the rotating pole plate is rotated, and the capacitance value between the rotating pole plate and the fixed pole plate is collected. When the rotating pole plate overlaps with the next fixed pole plate, the capacitance value between the rotating pole plate and the overlapping fixed pole plate begins to be collected, and the capacitance value is related to the circumferential distance between the two pole plates. Each time the rotating pole plate overlaps with the next fixed pole plate, a periodic capacitance signal is generated, and the pole plate rotates one circle to generate a coding signal with the same number of periods as the number of fixed pole plates. The device can describe the material distribution inside a tubular object with a signal.