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48results about How to "Simple architecture" patented technology

Magnetoresistive sensor and ZigBee network-based intelligent method for monitoring vehicle flow

The invention relates to a intelligent method for monitoring vehicle flow, wherein the method is based on a magnetoresistive sensor and a ZigBee network. The method is used to solve some problems in urban traffic. According to the invention, vehicle flow in traffic is monitored. And then after data is processed, the data is transmitted to a traffic control department and a communication service provider; on one hand, the obtain data information is further utilized by the traffic control department to lead and control the traffic; on the other hand, the communication service provider utilizes a self-communication network to give guidance to information-demanding users including mobile communication users for their trips. Therefore, people can understand the situation of the amount of the traffic without passing a section of a road; consequently, support is provided for selection of trip routes of the people taking trips, so that it is convenient for the people to go out and an operation of a city becomes more efficient. With utilization of the mobile communication network of the communication service provider and mobile terminal equipment like a mobile phone and a PDA and the like, traffic indication and guidance are provided for people that go out and people that are on the way, so that a traffic jam degree can be reduced, traffic accidents can be avoided, and success rates of handling special events like emergency rescue and disaster rescue can be improved.
Owner:南京华控创为信息技术有限公司

High-precision map and sensor fusion based location method of ramp of underground parking garage

InactiveCN107270915ASolve the problem of ramp positioning for automatic drivingForward-lookingInstruments for road network navigationIn vehicleRadar
The invention discloses a high-precision map and sensor fusion based location method of a ramp of an underground parking garage. The location method comprises the following steps of a step 1), when an autonomous vehicle is enabled to begins entering the ramp of the underground parking garage, apperceiving the type of the ramp by an in-vehicle gradient sensor, so as to obtain the information that the vehicle is enabled to begins entering the ramp of the underground parking garage; a step 2), when the autonomous vehicle is enabled to begins entering the ramp, measuring distances of the vehicle to two walls by radar sensors on two sides of the vehicle, judging the starting point, at the ramp, of the vehicle in a matching manner by the distances and the high-precision map in a matching manner, and establishing a three-dimensional coordinate system in the matching manner according to the relative position, , at the ramp, of the starting point and the high-precision map in the matching manner; a step 3), subjecting a known path to digital curving to obtain the formula of the known path, and correspondingly moving transferring into the three-dimensional coordinate system; a step 4), after the autonomous vehicle is enabled to enters the ramp, calculating the running mileage of the vehicle through a wheel speed pulse signal output value, matching the mileage with the formula of the path subjected to the curving to obtain the point coordinates of a corresponding curve length, namely the location coordinates of the vehicle in the coordinate system at the moment, of a corresponding curve length.
Owner:JIANGSU UNIV

Hole panoramic image pair three-dimensional imaging method

The invention discloses a hole panoramic image pair three-dimensional imaging method, which comprises a basic principle, a method, an optimized design and algorithm realization. According to the basic principle of the three-dimensional imaging, an imaging method for a 360-DEG drilling hole wall panoramic image-paired image containing the location information of an imaging device is provided by utilizing the technological combination of an optical converter of a twin-conical-surface lens, the imaging device and the space location; a calculation formula of a panoramic image-paired image is derived by theoretically analyzing the hole panoramic image pair imaging principle, the optimized analysis is carried out for the parameters of relevant technology and the layout design, and the corresponding software algorithm is established; and by analyzing a key point and difficulties for realizing the algorithm, the corresponding implementation scheme and flow block diagram are compiled. By adopting the hole panoramic image pair three-dimensional imaging method, the difficult problem of panoramic and three-dimensional detection inside the hole can be solved, a scientific method is provided for the precise detection inside the hole, the breakthrough and substantive progress of the drilling photograph technology can be realized, and the remarkable scientific significance and economical practicability can be realized.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Programmable logic control device for automobile transmission case with manual gearshift

The invention provides a programmable logic control device of hand-operated shift vehicle speed change box, which comprises a shift operation rod, a switch sensor, a CPLD main control module, an electric control shift valve, the A cylinder and the B cylinder. Wherein, the switch sensor comprises stage switch sensors and cylinder positioned switch sensors, while the stage switch sensors are mounted at the each stage of vehicle shift operation rod base to connect the power resource and the CPLD main control module; the CPLD main control module is connected to the drive coil of electric control shift valve; the electric control shift valve is connected to the A cylinder and the B cylinder; the A and B cylinders are individually connected to the speed change gear device of speed change box; the cylinder positioned switch sensors are mounted at the outer walls of A cylinder and B cylinder to connect the power resource and the CPLD main control module; the speed sensor is mounted inside the speed change box to connect the CPLD main control module. The invention uses the 7064S CPLD in MAXII system of Altera Company as the main control module which has simple structure, easy operation, high control speed, stable operation and stronger anti-disturb ability.
Owner:SOUTH CHINA UNIV OF TECH

Sending device for transmitting video signals with ultrahigh resolution ratio and ultrahigh frame rate through dual twisted pairs

Disclosed is a sending device for transmitting video signals with an ultrahigh resolution ratio and an ultrahigh frame rate through dual twisted pairs. The sending device comprises a chroma space conversion unit, a YUV gain control unit, an image division unit, a coding unit and a D/A conversion unit which are sequentially connected are included; as for the video signals, the RGB format is converted into the YUV format through the chroma space conversion unit, and the brightness and chroma are adjusted through the YUV gain control unit; the image division unit is used for dividing the adjusted video signals into a plurality of sub images; the coding unit is used for coding the brightness Y and the chroma UV separately; and the sub images are converted into analog signals through the D/A conversion unit so that the analog signals can be transmitted on a dual-twisted-pair transmission line. The sending device has the advantages of low structuring cost and simple mode, and is beneficial for restraining common mode interference and reducing attenuation. By means of the sending device, multi-path frequency decrease treatment is achieved, the requirement for bandwidth of each signal transmission line is lowered, the degree of distortion of transmission frequency is lowered, and meanwhile, transmission problems caused by mutual interference of brightness and chroma is effectively solved.
Owner:浙江芯劢微电子股份有限公司

Single photon sampling signal frequency measurement realization system and method

The invention discloses a single photon sampling signal frequency measurement realization system and method. The scheme comprises a radio frequency preprocessing unit, a single photon sampling unit and a signal processing unit, an input radio frequency signal is processed and converted into two paths of radio frequency signals, namely an in-phase signal and an orthogonal signal, through the radiofrequency preprocessing unit; the in-phase signal and the orthogonal signal are both input into the single-photon sampling unit; the single-photon sampling unit converts the two paths of radio frequency signals into a first digital signal corresponding to the in-phase signal and a second digital signal corresponding to the orthogonal signal after processing; the first digital signal and the seconddigital signal are input into the signal processing unit at the same time, and the signal processing unit obtains frequency parameters of the input radio frequency signal through a fast processing algorithm. The brand-new single photon sampling signal frequency measurement realization provided by the invention has the advantages of high sensitivity, good realizability, good biological safety andthe like, and has important application value for broadband and real-time signal frequency measurement in the fields of biomedical sensing and the like.
Owner:成都唯博星辰科技有限公司

Magnetoresistive sensor and ZigBee network-based intelligent method for monitoring vehicle flow

The invention relates to a intelligent method for monitoring vehicle flow, wherein the method is based on a magnetoresistive sensor and a ZigBee network. The method is used to solve some problems in urban traffic. According to the invention, vehicle flow in traffic is monitored. And then after data is processed, the data is transmitted to a traffic control department and a communication service provider; on one hand, the obtain data information is further utilized by the traffic control department to lead and control the traffic; on the other hand, the communication service provider utilizes a self-communication network to give guidance to information-demanding users including mobile communication users for their trips. Therefore, people can understand the situation of the amount of the traffic without passing a section of a road; consequently, support is provided for selection of trip routes of the people taking trips, so that it is convenient for the people to go out and an operation of a city becomes more efficient. With utilization of the mobile communication network of the communication service provider and mobile terminal equipment like a mobile phone and a PDA and the like, traffic indication and guidance are provided for people that go out and people that are on the way, so that a traffic jam degree can be reduced, traffic accidents can be avoided, and success rates of handling special events like emergency rescue and disaster rescue can be improved.
Owner:南京华控创为信息技术有限公司

A low-complexity GMSK demodulation timing synchronization method in burst communication

The invention discloses a GMSK demodulation timing synchronization method with low complexity in burst communication. In a short-time burst communication system, timing synchronization is generally completed by only one section of synchronization sequence, so that the reliability of subsequent data is reduced. The method comprises the following steps: 1, receiving and splitting a processed sequence, and carrying out matched filtering; 2, constructing a local synchronization sequence and a position index sequence, and calculating average power and related peak values; And 4, setting a thresholdvalue, and judging whether the processed sequence is effective or not; 5, intercepting partial sequences; and 6, calculating the phase, and rotating according to the phase. The method has the advantages of being simple in implementation framework, low in complexity and the like, and the demodulation performance of the method is superior to that of a traditional incoherent demodulation mode and close to that of coherent demodulation performance. According to the method, the accumulated error generated by timing synchronization can be effectively eliminated, so that the robustness of the burstcommunication system is improved.
Owner:ZHEJIANG REALLIN ELECTRON

PC-based three-dimensional loom control system and weaving method

PendingCN114232182ASimple architectureRealize online designLoomsAutomatic controlIndustrial PC
The invention discloses a PC-based three-dimensional loom control system, which comprises an industrial computer, and is characterized in that a soft PLC and a man-machine interaction system are arranged in the industrial computer; the man-machine interaction system comprises a design system module used for designing a three-dimensional fabric weave structure; the system parameter module is used for setting weaving parameters; and the data management module is used for checking, storing and reporting historical data in the weaving process. The invention discloses a weaving method, which comprises a weaving main program and a weaving subprogram, the flow of the weaving main program sequentially comprises equipment initialization, fabric organization structure design and weaving mode selection, the weaving mode comprises a full-automatic mode, and the flow of the full-automatic mode sequentially comprises the steps of reading weaving parameters, and calling a weaving motion subprogram and judging continuous weaving. Control, communication, a human-computer interface and various specific applications are integrated and applied to the same PC hardware platform, and the requirement for automatic control of the three-dimensional weaving machine can be better met.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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