55results about How to "Reduce the amount of data collected" patented technology

The present invention provides a traffic information providing system and terminal and a method of providing traffic information. More specifically, the traffic information providing system includes a first module, within a vehicle, which is configured to receive a range associated with a route calculated by a terminal from a web server, wherein a plurality of ranges are previously set based on a traveling route, a specific region and a present position. Additionally the present invention also includes a second module that is configured to receive a traffic information request for any one of a plurality of ranges from the terminal via a command. A third module is configured to collect traffic information within the provided range corresponding to the command. Upon doing so the second module transmits the traffic information collected by the third module to the traffic information providing terminal to be conveyed to the driver.

The invention discloses an FRI sparse sampling core function building method and an FRI sparse sampling core function building circuit. According to the method, the condition that a sampling core needs to meet is determined according to the features of an analog input signal and a subsequent parameter estimation algorithm, a frequency response function of a Fourier series coefficient screening circuit is designed, a performance parameter of the sampling core response function is determined, and a sampling core function is acquired after correction. The circuit is achieved by a Fourier series coefficient screening module and a phase correction module. The Fourier series coefficient screening module adopts a Chebyshev II type lowpass filtering circuit, and the phase correction module adopts all-pass filtering circuit. Signals can be directly sparsely sampled according to the information innovation rate after passing through the sampling core circuit, and original feature parameters can be accurately recovered via a parameter estimation algorithm after sparse data is acquired. The limited innovation rate sparse sampling core provided by the invention is particularly applicable to an FRI sparse sampling system for pulse flow signals, a sampling rate is far lower than a general Nyquist sampling rate, and a data collection amount is greatly reduced.

This invention relates to a non-contacted supersonic motor including a stator, a rotor, a reversible drive circuit and a rotation speed following control device, in which, the stator is a ring post, the outside of which is set with ring piezoelectric ceramic plates and electrodes, in which, the reversible drive circuit includes a DC supply, a square wave generator, a frequency dividing phase shifter, a power amplified circuit and a transformer boosting circuit, in which, the rotation control device includes a control signal interface circuit, a controller and a motor vibration test circuit, which includes an integral phase shift circuit, a proportion amplified circuit, a subtraction circuit and a discriminating circuit.

The invention discloses a consistent networking method based on an ISA100.11a standard. The method comprises the steps of ignoring function difference of all wireless devices, carrying out collectionand statistics on single-hop wireless communication quality of a whole grid network topology through a system manager and taking the single-hop wireless communication quality as point-to-point weightin the topology; evaluating the weight and generating unconnected complex network topology graphs; forming a fully-connected new graph through utilization of a backbone router and the unconnected complex network topology graphs of all wireless devices; marking the weight of all added sides starting from the backbone router as 1; solving the minimum spanning tree by taking the backbone router as aroot node; extracting the out-degree of the root node of the minimum spanning tree, setting the out-degree as K, wherein the least number of trees contained by the unconnected complex network topologygraphs is equal to a K value, obtaining all nodes directly connected with the root node from the minimum spanning tree, and taking the nodes as the nodes of routing devices, thereby realizing the consistent networking. According to the method, the connection of a whole wireless sensor network can be realized with the least number of routers.

The invention discloses a system for real-time acquisition and processing of automobile data, including: a vehicle-mounted server, a system for real-time acquisition of vehicle-mounted data, a data relay and processing system, and a cloud server; the invention also provides a method for real-time acquisition and processing of automobile data based on kettle, Achieved by the system as previously described. By adopting the above-mentioned technical solution, the method and system for real-time acquisition and processing of high-frequency automobile data of the present invention distributes the data processing tasks to a plurality of processing units for processing, and distributes the third part of the data processing tasks with a huge amount of data processing to the cloud server , effectively reducing the load on the vehicle server.

The invention reveals a collection method for fault analysis data of a harbor machine, and the method comprises the following steps: setting a collection time duration t0 before an abnormality and a collection time duration t1 after the abnormality, wherein the abnormality is a time point t when a fault code is detected; setting the sampling period; carrying out the sampling of the operation dataof the harbor machine according to the sampling period; detecting the fault code, and recording the time point t when the fault code is detected; extracting the data from the sampled data from a moment t-t0 to a moment t+t1, and enabling the data to serve as fault collection data; transmitting the fault collection data to a fault analysis server; enabling the fault analysis server to input the fault collection data into the fault analysis model for learning and training, so as to update the fault analysis model; adjusting the collection time duration t0 before the abnormality and the collection time duration t1 after the abnormality according to the updated fault analysis model, and repeatedly carrying out the above process according to the adjusted collection time duration t0 before the abnormality and the adjusted collection time duration t1 after the abnormality.

The invention provides a method, a module and a device for signal compression transmission and a storage device. The method for signal compression transmission comprises the steps that a signal collection device collects an original signal; a signal compression device compresses the original signal to obtain a compressed signal; a signal transmission device transmits the compressed signal; a signal reception device receives the compressed signal and transmits the received compressed signal to a signal reconstruction device; and the signal reconstruction device decompresses the compressed signal in a reverse manner to obtain the original signal. The module for signal compression transmission comprises a signal collection module, a signal compression module, a signal transmission module, a signal reception module, a signal reconstruction module and the storage device. The device for signal compression transmission comprises the signal collection device, the signal compression device, the signal transmission device, the signal reception device, the signal reconstruction device and the storage device. The modules and the devices realize the method for signal compression transmission. By introduction of an M-B measurement matrix, the collecting time and the collecting amount are not only reduced greatly, but also high-quality reconstruction of the original signal at a terminal can be realized.