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Automatic collecting method of high-resolution satellite remote sensing traffic flow information

The invention discloses an automatic collecting method of high-resolution satellite remote sensing traffic flow information. The automatic collecting method comprises the following steps of: A. pretreatment: registration of panchromatic images and a vector road network as well as panchromatic and multi-spectral images, road region division and double edge filtering strengthen; B. acquiring a vehicle sample characteristic value by visually judging a road region image obtained in the step one, and establishing a vehicle remote sensing image feature library; C. carrying out rough neural network vehicle extraction and fine facing objective vehicle extraction on the panchromatic images obtained in the step two; D. by utilizing a matching method relative to an image frequency domain, searching the vehicle position in fine extraction in the step three in multi-spectral images and carrying out matching; E. calculating a displacement amount of a same vehicle in the panchromatic and multi-spectral images according to the corresponding vehicle position obtained in the step three and the step four, thus estimating traffic flow parameter information; and F. verifying the traffic flow parameter information through precision evaluation. With the adoption of the method, static and dynamic traffic flow information in a large range series can be automatically and rapidly collected, the efficiency is high, and the method is simple and practicable.
Owner:REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI

Robot navigation system and navigation method

The utility model discloses a robot navigation system and a navigation method. The robot navigation system comprises a navigation network which is formed by a plurality of wireless access points, a wireless communication module which is used for transferring data and collecting the intensity sequence communicated with the wireless access points, a sensor which is used for checking that the robot meets barriers or not, and a position server which is used for storing the referenced intensity sequence and running the intricate position arithmetic, and is characterized in that the position server is connected with the wireless communication module and interacts with the navigation network. The navigation method is characterized in that the robot judges the next target position until reaches the destination by comparing the intensity sequence collected in real time with stored reference intensity sequence of the position points; when the robot meets barriers, the robot records and demarcates the intensity sequence of the position in order to avoid entering the position again, therefore achieving intellectual learning; the robot can upload the correlative information to the position server and achieve the assistant navigation position by the help of the database of the position server and the position arithmetic. The utility model is not likely to be affected by the environment and also has the advantages of low cost of maintenance.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Device for monitoring heart rate and physical state

The invention provides a device for monitoring heart rate and physical state. Sensors are mounted on a waistband, and the device comprises a data acquisition module, an FPGA (Field-Programmable Gate Array) control module and a DSP (Digital Signal Processor) data processing module. When the heart rate and the physical state of a subject change, the sensors collect body dynamic signals generated from the changes; the body dynamic signals generated from heartbeat after being processed by an analog, amplification and filter circuit and the body dynamic signals generated from changes of the physical state are output to the FPGA respectively through A/D (Analog/Digital) conversion circuits; the FPGA sends the body dynamic signals to the DSP to perform body dynamic signal processing by selectingone or multiple paths sensors, so as to calculate the heart rate and judge the physical state, and obtained data are fed back to the FPGA; and the FPGA sends the data to a monitoring center workstation by externally connecting a serial port with a communication module according to the information fed back by the DSP. The device provided by the invention can complete real-time, quick and accurate acquisition of multi-path signals to obtain physiological information of human body, and is combined with the wearing technology to realize long-term dynamic monitoring and identification of physiological information.
Owner:NORTHEASTERN UNIV

Advanced geological prediction system and method for underground engineering construction

The invention provides an underground engineering construction advanced geological prediction system and a prediction method thereof which comprise earthquake wave receivers that are distributed in the underground construction tunnels and the arrangement method thereof, an earthquake wave collector and an earthquake wave data processing and analyzing system, wherein, the earthquake wave collector is formed by connecting a system motherboard and 16 collecting daughter boards in a way of inserting card, and the daughter boards are communicated with the system motherboard by connecting sockets to obtain electricity; the system motherboard comprises an SCM master-control circuit, a power, a power light, a serial port, a USB port and a wireless port; each collecting daughter board comprises a connecting socket used for connecting with the motherboard, and a field programmable gate array circuit FPGA; the earthquake receiver is a multi-component spatial receiver, which comprises a detector and a supporting carrier for the detector; the earthquake wave data processing and analyzing system is a computer in which an earthquake wave data processing and analyzing software is installed. The system can detect the shape of spatial 3D geologic body, improves the reliability and accuracy of construction advanced geological prediction, is used for underground engineering construction advanced geological prediction and applicable for various underground engineering excavations, furthermore, shot points and receivers of this system can be flexibly arranged.
Owner:BEIJING MUNICIPAL ENG RES INST

Rapid and comprehensive tunnel measurement system

The invention discloses a rapid and comprehensive tunnel measurement system which comprises a chassis truck, a sensor bracket, a sensor, a sensor synchronizing and signal processing device, a data acquiring and processing device as well as a power supply device, wherein the sensor bracket is mounted on the chassis truck through a horizontal rotating shaft, and a plurality of area array cameras, LED lamps and thermal infrared imagers are mounted on the sensor bracket respectively; the area array cameras acquire image data of the section of a tunnel; the thermal infrared imagers acquire the temperature information of the inner wall of the tunnel; the synchronizing and signal processing device provides synchronous signals for the thermal infrared imagers and the area array cameras; the data acquiring and processing device acquires signals of the thermal infrared imagers and the area array cameras. The rapid and comprehensive tunnel measurement system can acquire data of various tunnel defects such as lining cracks, lining water leakage, section deformation, a disengaging defect and the like simultaneously and rapidly, the detection efficiency and the detection accuracy are improved greatly, manual intervention is not required in a detection process, and the safety is good when the system is used for detecting the lining water leakage and disengaging defect of the tunnel.
Owner:WUHAN WUDA ZOYON SCI & TECH
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