40results about How to "Reduce the difficulty of data processing" patented technology

The invention discloses a method for detecting a random access leader. After a random access channel (RACH) signal is treated with the simplified time domain-related operation, noise mean estimation is carried out to each root sequence; an absolute threshold is then detected according to a signal obtained by the noise estimation and signals in a search window are detected; the signals which exceed the detection threshold are screened and then a timing position can be determined in a fast and accurate way so as to provide reliable uplink timing adjustment information to a mobile terminal, guarantee the accuracy of the uplink synchronization and effectively eliminate the timing error due to the over-sampling and reduce the false alarm in the detection.

The invention discloses a random access detection device and a detection method in a TD-LTE (Time Division-Long Term Evolution) system. The device comprises a data extraction unit, a Fourier transform unit, a spectrum shifting unit, a local root sequence generating unit, a relative detection unit and a threshold detection unit, wherein the data extraction unit is used for extracting base band data; the Fourier transform unit is used for carrying out discrete Fourier transform on extracted data to obtain a frequency domain signal; the spectrum shifting unit is used for carrying out spectrum shifting on the frequency domain signal to obtain a frequency domain signal after the spectrum shifting; the local root sequence generating unit is used for generating N1 local frequency domain root sequences according to a logical root number broadcasted in broadcast information; the relative detection unit is used for carrying out relative frequency domain detection on the frequency domain signal after the spectrum shifting and the local frequency domain root sequences to obtain N1 time domain relative values; and the threshold detection unit is used for detecting and judging the time domain relative values according to a set threshold value, judging whether a terminal is allowed to be accessed into the system or not and calculating timing advance. The device and the method can be used for quickly detecting a random access precursor in the TD-LTE system, thereby greatly reducing the computation complexity and improving the operation efficiency.

The invention provides a foundation pit excavation state monitoring system and method based on laser range finder networking, and belongs to the field of earth excavation. A detection unit comprises multiple laser range finders; the multiple laser range finders are uniformly erected on the side face of a crown beam of an excavated foundation pit or the lower part of a support beam; a first wireless transmission module is packaged in each laser range finder; each laser range finder is use for acquiring earth excavation basic information at a certain time in a certain section, feeding back the earth excavation basic information to a monitoring unit through the first wireless transmission modules, and meanwhile, receiving a remote control command of the monitoring unit through the first wireless transmission modules so as to execute active/passive control commands; and the monitoring unit comprises a second wireless transmission module, a data processing and analyzing module, a networkingcontrol module, a monitoring data display module, a monitoring data storage module and a monitoring and early earning module. According to the foundation pit excavation state monitoring system and method based on laser range finder networking provided by the invention, the speed of acquiring the earth excavation state is fast, the data processing difficulty is low, and the application cost is low.

The invention relates to an electronic element installing method, in particular to an electronic element installing method which is applied to the field of desktop type chip mounters and comprises the steps that an image and recognition features of a suction nozzle are acquired through image capturing devices, and then an electronic element is installed on a printed circuit on the basis of a processing result of image information. According to the electronic element installing method, the rotating trace of the suction nozzle is acquired through a tracing mechanism, the step of optical axis alignment of the part and circuit board image capturing devices is omitted very skillfully, and the problem that the circuit board image capturing device cannot directly obtain the practical rotating center of the suction nozzle is solved; the relative position relation between the practical rotating center of the suction nozzle and an image capturing center of the circuit board image capturing device can be efficiently determined and deviation between the practical rotating center and a designed rotating center can be corrected on the basis that too much cost of an existing desktop type chip mounter structure is not increased, therefore, operating personnel can easily learn, and printed circuit board production chip mounting can be efficiently performed.

The invention discloses a coplanar waveguide ferromagnetic resonance measurement system and method, and belongs to the technical field of microwave systems. The system comprises a coplanar waveguide, electromagnets, a microwave signal generator, a detector, a nanovoltmeter, a current source and a computer. An electromagnetic film material is placed on the coplanar waveguide. The coplanar waveguide is placed in a magnetic field formed by the two electromagnets, one end is connected with the microwave signal generator, and the other end is connected with the detector. The electromagnets are connected with the positive and negative electrodes of the current source and generate a uniform magnetic field under excitation of the current source. The microwave signal generator generates a high-frequency alternating current signal, and the detector converts the intensity of a microwave signal generated after the high-frequency alternating current signal passes through the coplanar waveguide into a voltage signal. The nanovoltmeter detects and records the converted voltage signal and outputs the converted voltage signal to the computer. The computer controls operation of the microwave signal generator, the nanovoltmeter and the current source and receives and records measurement result data. According to the invention, frequency sweep and field sweep measurement of ferromagnetic resonance can be realized at low cost.

The invention belongs to the technical field of communication, particularly to an inter-vehicle communication and data processing method. The inter-vehicle communication and data processing method solves the problems of poor information timeliness and low inter-vehicle distance accuracy in the prior art. The inter-vehicle communication and data processing method comprises the following steps of S1, structuring an inter-vehicle communication and data processing system; S2, mounting sensors, recording vehicle information and structuring vehicle models; S3, searching for and locking target vehicles; S4, determining inter-vehicle position relations, and broadcasting voice or issuing alarm. The inter-vehicle communication and data processing method is high in timeliness and capable of effectively reducing inter-vehicle traffic accidents and improving inter-vehicle rescue efficiency.

The invention provides a myoelectric signal acquisition device and an acquisition processing method thereof. The myoelectric signal acquisition device comprises a surface facing electrode and a signal conditioning circuit for processing myoelectric signals, wherein the signal conditioning circuit is connected with an MCU and also comprises a myoelectric signal storage unit connected with the MCU; the myoelectric signal conditioning circuit comprises a high-pass filter, an amplifier and a low-pass filter which are connected in sequence, and acquired myoelectric signals are subjected to high-pass filtering, amplifying and low-pass filtering and then transmitted to the MCU; and electrodes adopt Ag and/or AgCl surface electrodes, one electrode is composed of three Ag and/or AgCl electrodes parallel to each other, the intermediate electrode serves as a reference ground end, and the two electrodes at two sides are composed into a differential input end. Compared with the prior art, the acquisition environment interference is avoided, and the data processing difficulty is low; and batteries are used for supplying power, thereby avoiding the interference of easy leading-in of external wires.

The invention discloses an intelligent instrument and meter management system, comprising a central processor, wherein the central processor is in input connection with a water meter information processing system, an electricity meter information processing system, a gas meter information processing system and an environment information processing system; the water meter information processing system, the electricity meter information processing system, the gas meter information processing system and the environment information processing system are electrically in input connection with A/D conversion modules; the four A/D conversion modules are electrically connected to data receiving modules; the four data receiving modules are electrically connected to data collecting modules; and the four data collecting modules are electrically connected to an intelligent water meter, an intelligent electricity meter, an intelligent gas meter and an environment monitoring unit in sequence. The invention has the advantages of simple structure design, reduces the labor intensity in the reading process of meters such as water meter, electricity meter and gas meter, and facilitates real-time observation during the use of meters such as water meter, electricity meter and gas meter.

The invention discloses a system and method for dirt retention detection and cleaning reminding of car windshields. The system comprises a shell and a diffuse reflection surface, wherein the diffuse reflection surface is attached on the outer side of a windshield; the shell is mounted on the inner side of the windshield; the shell comprises a left cavity, a right cavity and an illumination cavity;an LED light emitting diode a is arranged at the bottom of the left cavity; a light intensity reference photoelectric sensor is arranged beside the LED light emitting diode a; a light barrier is clamped at the lower part of the left cavity; a semi-permeable mirror a is obliquely arranged above the light barrier; a horizontal cavity is formed on one side of the semi-permeable mirror a; a transmitting photoelectric sensor is arranged in the horizontal cavity; a reflecting photoelectric sensor is mounted at the top of the left cavity; and a transmitting glass thin film is arranged at the front end of the reflecting photoelectric sensor. The system and method are capable of realizing dirt retention detection, cleanliness detection and windshield cleaning reminding.

The invention discloses an intelligent leakage detection robot and a detection method for detecting a leakage point of a liquid filling pipeline. The intelligent leakage detection robot comprises a shell, a control module and a sensing device, the sensing device adopts a magnetic field sensor and/or a plurality of pressure sensors. According to the robot and method, the hardware is simple, the data processing difficulty is relatively low, and the leakage point in the liquid filling pipeline can be conveniently found and positioned.

The invention relates to a cloud-based intelligent vegetable planter environment precise monitoring system characterized by comprising an environment monitoring module, a controller, a data transmission network, a mobile terminal and a cloud platform. The invention also relates to a cloud-based intelligent vegetable planter environment precise monitoring method comprising the following steps of: 1) acquiring environmental temperature and humidity raw data; 2) transmitting the data to the cloud platform through the data transmission network; 3) storing, by the cloud platform, the acquired raw data in a database module; 4) processing, by the cloud platform, the raw data by a data fusion algorithm; and 5) transmitting the processed precise data to the mobile terminal through the data transmission network. The cloud-based intelligent vegetable planter environment precise monitoring system and method are scientific and reasonable in design, contribute to acquiring and analyzing the temperature and humidity data of the vegetable planter, and realize accurate monitoring and processing of the data.

The invention provides a dynamics simulation optimization method and device of a heavy haul train, and is applied to a dynamics simulation system of the heavy haul train. The method comprises the following steps: obtaining calculation frequencies required within simulation step size time in simulation; judging whether the calculation frequencies required within the simulation step size time are greater than a preset operation frequency upper limit for operating the computer of the simulation system or not; and if the calculation frequencies required within the simulation step size time are greater than the preset operation frequency upper limit for operating the computer of the simulation system, optimizing the calculation frequencies of air braking force to cause an optimization result to meet a requirement that the calculation frequencies required within the simulation step size time is smaller than the operation frequency upper limit of the computer. On the basis of the method, the calculation frequencies of air braking force are optimized to lower data processing difficulty and realize the instantaneity and the data synchronization of the dynamics simulation calculation of the heavy haul train.

The invention discloses a gas transmission trunk line valve chamber combustible gas detector arrangement method, and belongs to the technical field of oil and gas pipelines. The method comprises the following steps that a station yard gas quality analysis cabin is used for collecting natural gas components conveyed by a gas conveying main line and pipeline operation parameters; calculating natural gas physical property parameters according to the natural gas component information and the pipeline operation parameters; calculating the leakage rate of each component of the natural gas under the working condition of valve chamber leakage; and according to the calculated leakage rate, a suggested installation mode of the combustible gas detector in the valve chamber is given in combination with natural gas physical property parameters. According to the arrangement method of the valve chamber combustible gas detector, the defect that a detection blind area possibly exists or the detection time is greatly prolonged when the valve chamber combustible gas detector is arranged only according to standard specification suggestions in the prior art is overcome, and the safe operation level of a gas transmission main line valve chamber is improved.

The invention belongs to the field of medical examination and gene chips, and provides a high-throughput gene chip for detecting splicing conditions of nucleic acid fragments and a preparation method of the high-throughput gene chip. The application method of the gene chip comprises the following steps: carrying out reverse transcription on a sample RNA to obtain double-stranded cDNA, carrying out in-vitro transcription to obtain cRNA, adding a fluorescence label, hybridizing the cRNA with a probe on the chip, and carrying out comparative analysis according to the probe position and fluorescence intensity distribution when the chip is designed to obtain the splicing condition of the sample. Compared with the existing whole exon/whole genome detection, the detection cost and the data processing difficulty required by the method are greatly reduced.

The invention provides an electric amplifier based on frequency detection. The electric amplifier comprises an LC feedback resonant structure, an operational amplifier and an LC balancing structure, wherein the operational amplifier comprises an inverting input end, a non-inverting input end and a balanced output end, two ends of the LC feedback resonant structure are separately connected with theinverting input end and the balanced output end, and a negative feedback network is formed between the inverting input end and the balanced output end; the LC balancing structure is connected with the non-inverting input end; the LC feedback resonant structure is used to select signals with a specific frequency from received signals; the operational amplifier is used to provide transconductance gains for the signals with the specific frequency; and the LC balancing structure is used to perform balance matching on bias currents of the non-inverting input end and the inverting input end. According to the electric amplifier based on frequency detection provided by the invention, the frequency of the selected current signals is in in a low-noise frequency band of the amplifier.

The invention relates to a stage central control system based on cloud service, which comprises a stage central control system, the input end of the stage central control system is provided with a monitoring data acquisition unit, and the output end of the stage central control system is provided with a stage equipment protection unit and a stage control execution unit. The input end of the stage central control system is provided with a central data processing device, the central data processing device is connected with a wireless communication unit, and the wireless communication unit is connected with an upper computer. The control system adjusts stage lighting, loudspeakers, audios, background videos, monitoring and actor follow-up components, ensures the integrating degree of stage performance atmosphere and actor performance, increases stage performance appeal, establishes connection with the cloud service module through the wireless communication module, and improves the performance experience of the stage. And the remote control end can store, call and change an operation instruction for the control end through the cloud service module, so that the control on the operation component of the control end is ensured.