Abstract: Disclosed is a method for power optimization of a terminal. The method includes that a user equipment (UE) detects an activation signal indicating a control signal to be sent after the activation signal and receives the control signal according to the activation signal. The UE is configured to enter a sleep state in response to determining that the activation signal is not detected or determining that no required control signal exists.

Abstract: A split air cabin ventilation system for construction of tunnel inclined shafts, including a first air cabin and a second air cabin which are both in a hollow closed structure with an air inlet end and an air outlet end respectively at both sides. The two air outlet ends are arranged away from each other. An end of the split air cabin is provided with an air inlet, and the other end is provided with an air outlet. The air inlet is connected to an air source, and the air outlet is connected to the air inlet ends of the first and second air cabins, respectively. The air inlet end of the first air cabin is connected to another air source.

Abstract: A device for sand sampling through a water method includes a sampling cylinder and a triaxial sampler, where the sampling cylinder includes a cylinder, two ends of the cylinder being hermetically provided with an upper sealing cover and a lower sealing cover separately, one ends, facing inside of the cylinder, of the upper sealing cover and the lower sealing cover being provided with water-permeable stones, one end, facing outside of the cylinder, of the upper sealing cover being connected to a control valve, and the control valve being in communication with the inside of the cylinder; and the sampling cylinder is arranged in the triaxial sampler when sand sampling is performed through a water method, a lower end of the triaxial sampler is provided with a test operation table, and an upper end of the triaxial sampler is nested inside a restraint ring.

Abstract: Provided is a method for berth allocation of a multiline bus station and speed guidance of buses. The intelligent control center sorts all buses between the current station and the previous station to form the BusNumber table, and performs speed guidance for all buses in the BusNumber table. Whether the guided bus can pass through the signalized intersection is determined. The buses that cannot pass through the signalized intersection are guided by acceleration, and those that cannot pass through the signalized intersection by acceleration guidance method update their speeds based on the phase state of signal light, so as to pass through the signalized intersection without stopping in most cases. All buses are conducted through speed guidance methods, and the berths are allocated for all the buses under different conditions.

Abstract: The present application relates to tunnel monitoring and measuring, more particularly, to a quick fixing device for measuring a tunnel peripheral convergence and an application method thereof. A right-angle steel sheet includes a first steel sheet and a second steel sheet which are vertically fixed with each other. The fastener vertically penetrates the first steel sheet, and an explosive powder loading portion on a rear end of the fastener is arranged at a side of the second steel sheet. The reinforcing steel sheet is respectively connected to the first steel sheet and the second steel sheet as a reinforcing bar. A through hole is provided on the reinforcing spacer, through which the reinforcing spacer is sleeved on the fastener. The reinforcing spacer is arranged between the explosive powder loading portion on the rear end of the fastener and the first steel sheet.

Abstract: A method for detecting a moisture damage on an asphalt pavement based on adaptive selection of a penetrating radar (GPR) image grayscale includes the following steps: step 1: obtaining a moisture damage GPR image dataset through asphalt pavement investigation by using a ground GPR, where a GPR image with an appropriate plot scale is selected according to an adaptive GPR image selection method; step 2: adjusting image resolution, specifically, scaling a resolution of an initial GPR image dataset of a damage directly to 224×224 to obtain a BD dataset; step 3: inputting the dataset into a recognition model, specifically, inputting the BD dataset obtained in step 2 into the recognition model, performing operation by the recognition model, and performing step 4; and step 4: outputting a moisture damage result. The new method truly realizes automatic and intelligent target detection based on the GPR.

Abstract: An active driving intervention system and method based on acceleration rate optimization. After acquiring a distance from a vehicle ahead and a velocity of a driving vehicle, an evenly varying optimal acceleration variation when the driving vehicle is rapidly accelerated or rapidly decelerated in a safe condition may be calculated, which can be used to assist an accelerator or a brake in active intervention of a vehicle acceleration and appropriate adjustment of the opening of an accelerator or brake pedal, thereby realizing active intervention on driving operation. The method and system of the present disclosure can achieve the purpose of reducing energy consumption.

Abstract: A method for constructing a recognition model of a moisture damage of an asphalt pavement, and a method and system for recognizing the moisture damage of the asphalt pavement are provided. The method includes the following steps: S1, acquiring an initial dataset through a Ground Penetrating Radar (GPR) pavement field survey; S2, acquiring a time-frequency image set; S3, adjusting a resolution of a time-frequency image; and S4, constructing the recognition model and recognizing the moisture damage of the asphalt pavement with the recognition model. —A method and a system for recognizing the moisture damage of the asphalt pavement are further provided. The method for constructing and the method and the system for recognizing solves a technical problem of detecting the moisture damage of the asphalt pavement automatically to not only improving a precision of a moisture damage recognition, but also providing a novel method for analyzing GPR original data.

Abstract: A method for adaptively selecting a ground penetrating radar (GPR) image for detecting a moisture damage is provided. The method adaptively selects the GPR image according to a contrast of the GPR image. The method includes the following steps: S1, reading pre-processed GPR data; S2, adjusting a resolution of a picture; S3, inputting a data set into a recognition model; S4, outputting a moisture damage result; S5, judging whether there is a detection target or not by using an initial random image data set; and S6, generating the GPR image randomly incrementally and selecting the GPR image with a proper contrast. A proper B-scan image is found effectively, quickly and automatically by combining a recognition algorithm and a deep learning model or an image classification model to achieve an automatic recognition and detection based on the GPR image and improving a recognition precision as well.

Abstract: The present disclosure provides geological linear body extraction method based on tensor voting coupled with Hough transformation, including pre-processing a remote sensing image to obtain a pre-processed remote sensing image; selecting three optimal wavebands from N multi-spectral wavebands of the pre-processed remote sensing image, so as to obtain a remote sensing image combined by the optimal wavebands, N being a natural number greater than or equal to 3; using Gaussian high-pass filtering to perform sharpening processing on the remote sensing image combined by the optimal wavebands, so as to enhance linearized edge information; performing edge detection on the remote sensing image having enhanced linearized edge information, so as to obtain all edge points in the remote sensing image; and converting all the edge points in the remote sensing image from an image coordinate system to a parameter coordinate system, and extracting a geological linear body from the parameter coordinate system.

Abstract: Provided are a system and a method for testing an ability of an automated vehicle to pass a traffic circle without traffic lights. The system includes an automated vehicle, a traffic circle, a control center, an attitude sensor and a panorama camera. In the method, the control center receives a test request and then sends a driving command to drive the automated vehicle to enter the traffic circle to start the test. The attitude sensor obtains a tilt angle and sends it to the control center in real time. The panorama camera is configured to obtain a driving trajectory, a driving speed and a state of turn signals of the automated vehicle. The obtained information is compared to a standard by the control center to evaluate the ability of the automated vehicle to pass the traffic circle without traffic lights.

Abstract: Provided is a dual-neighborhood wear angle automatic detection method, including constructing a proximal neighborhood and establishing grayscale differences between a pixel in a center area and pixels having first directions in the proximal neighborhood; calculating, based on the grayscale differences, deviation degrees of all pixels in the center area in the first directions; calculating a similar direction value based on the deviation degrees; constructing a distal neighborhood and focus pixels having second directions in the distal neighborhood; calculating grayscale differences between the pixel and the focus pixels; calculating deviation degrees of all pixels in the center area, in the second directions based on the grayscale differences between the pixel and the focus pixels; calculating a direction value of a wear angle based on the deviation degrees in the second directions; and calculating the wear angle based on the direction value of the wear angle.

Abstract: An integrally assembled hidden beam hollow two-way floor system includes precast slabs (1), honeycomb steel beams (3), and cast-in-place concrete (4). A plurality of compartments (12) arranged in a matrix is integrally provided on one surface of each of the precast slabs (1), and connecting grooves (14) are provided at a periphery of another surface of the precast slab (1) is provided with connecting grooves (14). Prepared bolt holes (13) penetrating through the precast slab (1) are provided in the connecting grooves (14). The honeycomb steel beam (3) serves as a primary beam or a secondary beam of a steel structure of the floor system. A surface of the precast slab (1) provided with no compartments is lapped and fixed between the secondary beams or between the primary beam and the secondary beam, and adjacent precast slabs (1) are connected and fixed by a U-shaped hoop (2) passing through the prepared bolt hole (13) to form a seam.

Abstract: Provided are a method and a device for constructing autonomous driving test scenes, a terminal and a readable storage media. Primitive scenes are extracted from real traffic scenes to establish a primitive scene description model. The values of the description variables are selected from distribution intervals of the description variables of the primitive scenes, and the description variables are randomly sampled based on the distribution of the description variables to generate test primitive scenes by adopting an importance sampling based Monte Carlo method. The test primitive scenes are recombined according to the parameters of the elements of the test scene to generate the test scene. The present invention can directly simulate the actual complex system, so as to avoid the result distortion caused by the simplification of the complex system.

Abstract: An apparatus for real-time monitoring of groundwater level and soil moisture of a gully head landfill area includes: a groundwater observation well set up in a monitoring area; a drop-in liquid level transmitter placed in the groundwater observation well and configured to sense a change of groundwater level and transmit data to an environmental supervision cloud platform (ESCP) through a data collection module; a plurality of soil moisture transmitters arranged in layers on a wall of the groundwater observation well and configured to sense soil moisture; a data collection module configured to receive data from the drop-in liquid level transmitter and transmit the collected signal to an ESCP; and an environmental monitoring host configured to receive data from the soil moisture transmitters and transmit the data to an environmental monitoring cloud platform (EMCP). A user can view real-time data by remotely logging in to the ESCP and EMCP.

Abstract: A method for image dehazing based on adaptively improved linear global atmospheric light of a dark channel. A haze image in haze weather is first obtained, a variation angle of atmospheric light of the image is obtain through calculating a slope of a connection line between a center and a center of gravity of a binary image of the image, a linear atmospheric light map that varies regularly along a variation direction of the atmospheric light is obtains, a dehazed image is solved through an atmospheric scattering model, and then a processed haze image taken in the haze weather is output.

Abstract: A cloud detection method based on Landsat 8 snow-containing image, including the following steps: Step 1, selecting any Landsat 8 image as a current image; Step 2, obtaining a cloud threshold for delineating a cloud range from the current image; and Step 3, removing false anomalies in the cloud range delineated by the cloud threshold from the current image so as to obtain a cloud image from which the false anomalies have been removed. The present disclosure can effectively solve the problem of confusion of cloud and snow present in conventional cloud detection methods, and is applicable to regions of different latitudes, without limitations by the amount of cloud.

Abstract: Provided is a rescue capsule for shelter in tunnel construction, relating to lifesaving equipment. The rescue capsule includes a housing. A cavity of the housing includes an equipment compartment which is located at an upper portion of the cavity and a passenger compartment which is located at a lower portion of the cavity. An exterior of the housing is provided with an external skeleton. The exterior of the housing is further provided with an external indicating sign and an external rescue indicator. The housing is further provided with an explosion-proof sealing door. An oxygen cylinder, a power supply, a maintenance box, a first air purifier and a medical box are provided in the equipment compartment. Areas where the maintenance box and the medical box of the equipment compartment are provided communicate with the passenger compartment.

Abstract: The present disclosure discloses a method for Internet of Vehicles (IoV) electronic traffic sign information broadcast with Quality of Service (QoS) guaranteed mechanism based on conflict detection. Compared with the traditional WLAN applied in electronic traffic sign information broadcast, the present disclosure significantly reduces the information broadcast delay, and at the same time provide QoS guaranteed service for the information broadcast. It allows IoV, through distributed algorithm, to achieve the electronic traffic sign information broadcast with self-organization framework, short transmission delay and high efficiency.

Abstract: A method for deformation control of large-span tunnel in chlorite schist stratum. The method divides the large deformation of large-span tunnel in chlorite schist stratum into five deformation grades according to the surrounding rock conditions of the tunnel. In response to each deformation grade, the deformation control of large-span tunnel is determined so as to ensure the safety and stability of the tunnel support structure and to avoid the clearance intrusion caused by tunnel deformation.