37results about How to "No noise interference" patented technology

The invention relates to a works progress data inputting and recording method of a constructional engineering management system, so that defects in the prior art can be solved. The method comprises: step one, a constructor uploads an unconstructed photo and a construction effect picture; step two, the constructor takes a picture of a current building based on a progress and uploads the shot picture to a constructional engineering management system and the constructional engineering management system stores the picture as a current progress; step three, a user takes a picture after current concealed work completion continuously according to the progress of the constructional project and then uploads the picture to the constructional engineering management system continuously, the constructional engineering management system adjusts the current picture and then compares the adjusted picture with the current progress, selects a different part in the construction project, and stores the current picture as the current progress; and step four, if the current different part is the concealed work, a step five is executed; and otherwise, the constructional engineering management determines that the different part in the current construction project is compared with the effect picture; and if the current different part contrast is larger than a threshold, accordance with the current progress is determined.

The invention discloses a soldering-resistance conductive thin film on the surface of a sensitive structure of a space electrostatic accelerometer. The soldering-resistance conductive thin film comprises a titanium film layer, a platinum film layer and a gold film layer, one side of the titanium film layer is adhered with the surface of a sensitive structure piece of the space electrostatic accelerometer, and the other side surface is sequentially connected with the platinum film layer and the gold film layer. The soldering-resistance conductive thin film completely uses the non-magnetic materials, thus there is no noise interference on measurement of the space electrostatic accelerometer, and all the materials have relatively low coefficient of line-expansion, the relatively good matching between substrate glass material and each film layer can be ensured and stability of the thin film can be ensured.

The invention discloses an online monitoring method for the metering performance of a diaphragm gas meter. The online monitoring method comprises specific working steps of the gas meter and a pressuresensor at the gas conveying end, and an analysis step; and the pressure sensor is fixedly mounted at the gas conveying end of the gas meter. The specific working steps include the following steps that, according to the internal structure and the principle of the diaphragm gas meter, when the pressure fluctuation in the period is ignored, a stable pulsation phenomenon exists in gas flow of gas conveying. The method relates to the technical field of gas metering and monitoring. The online monitoring method for the metering performance of the diaphragm gas meter can realize online monitoring ofthe metering performance of the diaphragm gas meter, and achieves the purpose of performing dynamic monitoring on the metering performance and the equipment performance of the diaphragm gas meter; meanwhile, the pipeline pressure fluctuation is monitored and analyzed, so that the centralized reading and intelligentization of the diaphragm gas meter are indirectly realized; and therefore, the method has great significance for improvement of a stock table.

The invention relates to a form data automatic recording method for the management system of building engineering materials, wherein the method solves defects in the prior art. According to the technical scheme of the invention, the method comprises the steps of 1, visiting the management system of building engineering materials, and uploading well scanned table pictures to the management system of building engineering materials; 2, sequentially subjecting table pictures to the ashing sub-step, the binarization sub-step and the automatic tilt correction processing sub-step through a picture processing module; 3, further positioning and extracting characters in the table cells of a table through a table processing module; 4, subjecting the characters to segmentation, feature extraction and pattern classification through an OCR module; 5, typing the well classified information into the management system of building engineering materials. Based on the method, the good picture processing and the good table processing are realized, so that the character information is provided for subsequent feature extraction and feature classification, wherein the character information is complete, reliable and free of noise interference as much as possible.

The invention provides a tumor real-time positioning method, and belongs to the technical field of radiotherapy positioning. The tumor real-time positioning method comprises the steps of step S10, demarcating magnetic sensors of a magnetic sensor array; step S20, measuring magnetic induction strength data of each demarcated magnetic sensor, acted by each permanent magnet; and step S30, based on the magnetic induction strength data, establishing an error target function by using a Biot-savart's law; step S50, through an optimization algorithm, finding out the smallest positioning data of the error target function; step S50, based on the positioning data, calculating the mass center and the radius of tumors; and step S60, positioning tumors by a computer according to the position and the size, and further controlling a radiotherapy robot to clamp a linear accelerator so as to realize pinpoint chemotherapy on the tumors. The tumor real-time positioning method has the advantages that real-time positioning of the tumors can be realized, the positioning speed and precision can be greatly increased, and radiation can be reduced.

The invention discloses an online shopping system based on space feedback characteristic-based video image identification technology and virtual reality technology. The online shopping system comprises a video image editing and processing unit, a virtual reality imaging device and a total service end, wherein the video image editing and processing unit is used for subjecting commodities that need to be sold by a merchant on the Internet to visualized editing operation; the video image editing and processing unit comprises commodity image element information, commodity sound element information and video information of commodity usage processes; a shopper wears the virtual reality imaging device in order to have virtual reality experience of commodity purchasing. The online shopping system based on space feedback characteristic-based video image identification technology and virtual reality technology disclosed in the invention enables a user to experience the virtual reality technology and commodity performance and function during commodity purchasing processes, the commodities can be known in a real way, and satisfying purchasing results can be obtained.

The invention relates to an automobile intelligent safe driving method and system. Firstly, before an automobile is started completely, a driver conducts face identification automatically; secondly, before the automobile enters a driving mode normally, an alcoholicity test is conducted through a vehicle-mounted blowing pipe; afterwards, after the automobile enters the driving mode, operation of the vehicle-mounted blowing pipe is automatically converted into a carbon dioxide content test of the in-vehicle space; and finally, in the normal driving mode, a weak current induction device of a steering wheel, a human body posture signal is detected, and the automobile intelligent safe driving system judges whether the condition is fatigue driving and conducts reminding according to the signal. The automobile intelligent safe driving system comprises an automatic face identification system, an alcoholicity test system, a carbon dioxide test system and a fatigue driving prevention system. According to the automobile intelligent safe driving method and system, the prior intelligent technology is applied in automobile driving comprehensively, and ideal effects of automobile thievery prevention and safe driving are achieved.

The invention discloses a connector device capable of meeting two-way transmission requirement of a digital television. A metal sheet wraps a cylindrical copper rod, two ends of the cylindrical copper rod are arranged into two slightly-divided parts, the positions of a center of circle corresponding to the two parts are provided with grooves which are matched with TV signal wires, the grooves areclamping grooves, the metal sheet beyond the cylindrical copper rod is divided into three pieces and are arranged into a fusiform grabhook; or one metal sheet is rolled into a cylinder shape, two ends of the cylindrical metal sheet are arranged into grabhooks with a dumbbell shape with the thin middle part and two thick ends, and the thin part of the dumbbell shape is the clamping groove and is matched with the TV signal wire. The connector device can meet the two-way transmission requirement of the digital television, and has convenient, fast and firm connection, makes pictures clearer and more stable, and has no noise interference.

The embodiment of the invention provides a CAN bus baud rate adaptive method and device based on a TC387 chip and a storage medium. The CAN bus baud rate adaptive method comprises the steps: configuring a baud rate matching table of a CAN bus, wherein the baud rate matching table comprises a first priority baud rate matching table and a second priority baud rate matching table; selecting a baud rate in the baud rate matching table, and sending data to the CAN bus at the selected baud rate; when data transmission succeeds, generating a transmission success interrupt, and determining a baud rate value on the CAN bus in the transmission success interrupt; when the data transmission fails, determining whether all valid baud rates in the baud rate matching table are matched or not; if the matching is not finished, selecting the baud rate which is not selected in the baud rate matching table as the next baud rate, and sending data to the CAN bus; and if the matching is finished, generating a CAN bus error signal, and giving an error prompt. According to the method, a mode of automatically matching the valid Baud rate by software is used, and the bus Baud rate is quickly and efficiently adapted.

The invention relates to a method for automatically entering form data in a construction engineering material management system, which solves the shortcomings of the prior art. The technical solution includes the following steps: Step 1: accessing the construction engineering material management system, and uploading the scanned form picture To the construction project material management system; step 2: the image processing module sequentially performs graying sub-steps, binarization sub-steps, and automatic tilt correction processing sub-steps on the form image; step 3: the form processing module further processes the characters in the cells of the form Carry out positioning and extraction; Step 4: The OCR module performs character segmentation, feature extraction and pattern classification; Step 5: Enter the classified information into the construction project material management system. The method of the invention can perform good picture processing and table processing, and can provide as complete, reliable and noise-free character information as possible for subsequent feature extraction and feature classification.

A real-time system and method for monitoring of high intensity ultrasonic wave therapy is disclosed. The system includes a sync pulse generator, a signal collection arrangement, a B type ultrasonic machine, an ultrasound therapeutic instrument, a computer and a display. The method utilizes intermittent time of ultrasonic wave to transmit sync pulse, while the pulse controlled ultrasonic therapeutic instrument transmits the ultrasonic wave in a intermittent mode meanwhile controls the computer to receive the B type ultrasonic information in intermittent time. Since the output signal sent by the ultrasonic wave machine is in synchronism with the pulse signal and avoids the noise interference of the therapeutic ultrasonic wave, in addition, the therapeutic point position image monitored by the B type ultrasonic wave can display clearly by way of computer. The system and method work under the uniform coordinated sync pulse instruction, realize the noise free real-time monitoring during the ultrasound wave therapeutic process and obtain clear B type ultrasound image.

The invention discloses a joint device capable of meeting the two-way transmission requirement of a digital television, which is a cylinder formed by coiling a sheet metal, wherein the two ends of the cylinder are arranged to be dumbbell-shaped grabhooks which are provided with a thin middle part and two thick ends respectively; the thin part of the dumbbell-shaped grabhook is a clamping groove; a hollow cone of the thick part is a grabhook which is provided with 4 to 12 holes; and the end part of the grabhook is bell-mouthed. The joint device can meet the two-way transmission requirement of the digital television, is convenient, fast and secure to connect, and can make pictures clearer and more stable and prevent noise interference.

The invention discloses a solder-resistant conductive film on the surface of a sensitive structure of a space electrostatic accelerometer, which is composed of a titanium film layer, a platinum film layer and a gold film layer, and one side of the titanium film layer is bonded to the surface of the sensitive structural part of the space electrostatic accelerometer , and the other side is sequentially connected with the platinum film layer and the gold film layer. The solder-resistant conductive film of the present invention is all made of non-magnetic materials, so it will not generate noise interference to the measurement of the space electrostatic accelerometer, and all materials have a small linear expansion coefficient, which can ensure the contact between the base glass material and each film layer. Better matching ensures the stability of the film.

The invention discloses a network audio mixing processing method and device, relating to the technical field of audio processing, comprising: performing signed accumulation of audio data from various channels; segmentally compressing the accumulated audio data; and determining the attenuation factor of each segment; Obtain the mixed sound audio signal of output; Described mixed sound processing method adopts the method for segmental compression to carry out sound mixing, even if make computing efficiency high, also be easy to realize in the single-chip microcomputer; Observation by actual waveform, after drawing the sound mixing of this method, There is no overflow and top clipping phenomenon, but they are all compressed at the position close to the upper and lower limits, the volume is louder, the remaining intelligibility is high, and there is no obvious noise interference; the system used in the device of the present invention only needs to use ARMCortex TM ‑Single-chip microcomputer above the M4 architecture can realize the function; and use the existing LWIP protocol stack to enable the system to support the basic transmission protocol in TCP / IP; since only one single-chip microcomputer is required for processing, a block can be saved from the circuit FPGA, thereby saving costs.

The invention discloses a signal input circuit. The signal input circuit comprises an MIC socket and an audio processing chip; the MIC socket comprises a first MCI input end and a second MIC input end; the signal input circuit further comprises a first bias circuit which is respectively connected with the first MCI input end and the audio processing chip; a second bias circuit which is respectively connected with the second MIC input end and the audio processing chip; and a matching circuit which is coupled between the first bias circuit, the second bias circuit and the audio processing chip;the first bias circuit and the second bias circuit are used for performing differential treatment on a received MIC signal, inputting two processed differential signals to the matching circuit in a differential input mode, and outputting the differential signals after being subjected to differential mode matching of the matching circuit to the audio processing chip, so that the audio processing chip outputs an audio signal at an output end after processing the MIC signal, and drives a load connected with the output end of an audio processor to play the audio signal. The signal input circuit provided by the invention solves the problem of unstable input of the existing MIC signal.

The present invention provides a method and device for transmitting audio data in a target area. The method includes: determining a data packet to be sent, and the data packet at least includes: first data used as a digital video display signal, second data used as a USB data signal data and the third data used as an analog audio signal, and the third data includes left channel analog audio data and right channel analog audio data; send data packets to the receiving end through the Type‑C harness, so that the receiving end displays digital While displaying the video signal, the analog audio data of the left channel and the analog audio data of the right channel are played locally in the target area or sent out based on the FM radio frequency method; among them, the Type-C wiring harness has multiple preset interfaces, and multiple The preset interface at least includes: a first data interface for transmitting first data, a second data interface for transmitting second data, and a third data interface for transmitting third data. This method can transmit USB data signal, digital video display signal and analog audio signal at the same time.

The invention discloses back-heating type no pump ternary solution absorption refrigeration and air conditioning system. It is made up of three containers, twenty one electric globe valves, condenser, capillary tube, evaporator, and three throttle valves. The upper of the container is set sprinkler pipe. Its middle is set back-heating tube. And its lower is set heating tube. It has the advantages of no harmful gas, no noise, good performance, low cost, and long useful life. It can be used in huge-middle-small type refrigeration and air conditioning system. And it can be driven by hot water with 50-60 centigrade degree.

The invention discloses an online monitoring method for the metering performance of a diaphragm gas meter. The online monitoring method comprises specific working steps of the gas meter and a pressuresensor at the gas conveying end, and an analysis step; and the pressure sensor is fixedly mounted at the gas conveying end of the gas meter. The specific working steps include the following steps that, according to the internal structure and the principle of the diaphragm gas meter, when the pressure fluctuation in the period is ignored, a stable pulsation phenomenon exists in gas flow of gas conveying. The method relates to the technical field of gas metering and monitoring. The online monitoring method for the metering performance of the diaphragm gas meter can realize online monitoring ofthe metering performance of the diaphragm gas meter, and achieves the purpose of performing dynamic monitoring on the metering performance and the equipment performance of the diaphragm gas meter; meanwhile, the pipeline pressure fluctuation is monitored and analyzed, so that the centralized reading and intelligentization of the diaphragm gas meter are indirectly realized; and therefore, the method has great significance for improvement of a stock table.

The invention relates to a method for entering project progress data in a construction project management system, which solves the shortcomings of the prior art. The technical solution is as follows: Step 1: The builder uploads unconstructed photos and renderings of the building; Take photos of the current building and upload them to the construction project management system, and the construction project management system will save the photos as the current progress; Step 3: The user continues to take photos of the current hidden project according to the progress of the construction project and then continue to upload the photos to the construction project Management system, the construction project management system adjusts the current photo and compares it with the current progress, selects the difference in the construction project, and then saves the current photo as the current progress; Step 4: If the current difference is a concealed project, execute Step 5, otherwise the construction The project management system judges the difference between the current construction project and compares it with the renderings. If the contrast of the current difference is greater than the threshold, it is in line with the current progress.