Abstract: An information processing method, device, cloud-based processing device, and computer program product are related to the field of data processing technologies and can cause an increased efficiency in detecting whether a road area contains a depression region. The information processing method includes: acquiring a depth image; processing the depth image to obtain a means-by-row graph, based on which a road area in the depth image is determined; determining a suspected depression region in the road area; and judging over the suspected depression region based on a depression threshold to determine whether the depth image contains a depression region.

Abstract: An example method of provisioning a virtual appliance to a virtualized computing system, comprising: deploying the virtual appliance to the virtualized computing system, the virtual appliance including a system partition, one or more disk images, and configuration data, the configuration data defining a virtual machine executable on each of a plurality of processor architectures, the system partition configured to boot on any one of the plurality of processor architectures; and booting the virtual appliance from the system partition.

Abstract: An active power distribution network multi-time scale coordinated optimization scheduling method and storage medium are provided. The method includes the following steps: performing long-time scale optimization scheduling of an active power distribution network; performing short-time scale rolling optimization scheduling on the basis of MPC of the active power distribution network according to an optimization result of the long-time scale optimization scheduling of the active power distribution network. By using a model prediction control method, taking the long-time scale optimization scheduling result as a reference, and performing short-time scale rolling correction, the optimization scheduling of the active power distribution network is achieved, thereby reducing unfavorable influences of prediction precision of a distributed power supply and a low-voltage load on the optimization scheduling.

Abstract: An obstacle avoidance reminding method includes: performing ground detection based on acquired image data to acquire ground information of a road; performing passability detection based on the acquired ground information, and determining a traffic state of the road; if it is determined that the road is impassable, performing road condition detection for the road to acquire a first detection result, and performing obstacle detection for the road to acquire a second detection result; and determining obstacle avoidance reminding information based on the first detection result and the second detection result.

Abstract: An example method of implementing firmware runtime services in a computer system having a processor with a plurality of hierarchical privilege levels, the method including: calling, from software executing at a first privilege level of the processor, a runtime service stub in a firmware of the computer system; executing, by the runtime service stub, an upcall instruction from the first privilege level to a second privilege level of the processor that is more privileged than the first privilege level; and executing, by a handler, a runtime service at the second privilege level in response to execution of the upcall instruction.

Abstract: A self-inspection method for a hydraulic control turning system of a generator rotor includes: establishing a length dimension relationship table among a plurality of hydraulic cylinders of the hydraulic control turning system; selecting a reference hydraulic cylinder, and acquiring a reference length dimension when the reference hydraulic cylinder is located at a target working position, the target working position is a position at which a turning pin corresponding to the reference hydraulic cylinder is inserted into an adapted hole; and performing a function inspection of a motion execution module in sequence by the plurality of the hydraulic cylinders, based on the reference length dimension and the length dimension relationship table.

Abstract: A system for controlling a generator rotor locking pin, comprising a fixed locking pin and a rotor formed with a locking hole, and further comprising a detection reference component synchronously rotating with the rotor and formed with a detection hole, the detection hole radially corresponding to the locking hole; an optical quantity detection component fixed with respect to the rotor; and a control component configured to output a first control instruction to a rotor driving component according to a position signal of the detection hole obtained by the optical quantity detection component. The detection hole is used as an object to be detected, so that the circumferential relative position relationship of the locking hole with respect to the locking pin can be accurately determined, to output the first control instruction to the rotor driving component, thereby accurately centering the locking pin and the locking hole along with the rotation of the rotor.

Abstract: Methods, apparatus, and system to compress a data file to form a compressed data file. The data file may be used to configure control of hardware, such as peripheral hardware. The compressed data file may be stored locally or transmitted to another computer device. The compressed data file may be stored in a flash memory. The compressed data file may require less space in flash memory components, relative to flash memory suitable to hold the (original, pre-compressed) data file. Compression and/or decompression may be performed by, for example, a flash memory controller. The compressed data file may be decompressed dynamically, on an as-needed basis, to provide code for execution by a processor and/or to configure a computer device to use hardware or other components. Other software and hardware components do not need to be aware that the data file is compressed in the flash memory.

Abstract: The present invention relates to the technical field of an elevator, and provides a governor of an elevator. The governor of the present invention is provided with a reset push part which is disposed on a ratchet wheel and is used for resetting the governor from a second state to a first state, wherein the reset push part and a pawl of the governor are set in such a manner that when a rope sheave rotates in a direction, the reset push part pushes the pawl to reset the pawl to a position corresponding to the first state.

Abstract: An example method of accessing a computing system includes: providing serial terminal driver configured to interface a serial port in a hardware platform of the computer system; providing a console object configured to communicate with an operating system (OS) in a software platform of the computer system and the serial terminal driver; connecting to the console object through the serial port via a computer terminal; sending text and commands from the console object to the computer terminal; and rendering, by the computer terminal, a console for presentation on a display of the computer terminal.

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols that produce zero cross-correlation energy. Channel communication can accordingly be simplified as the zero cross-correlation property allows for channel estimation without a matrix inversion.

Abstract: A method of initializing a secondary processor pursuant to a soft reboot of system software comprises storing code to be executed by the secondary processor in memory, building first page tables to map the code into a first address space and second page tables to identically map the code into a second address space, fetching a first instruction of the code based on a first virtual address in the first address space and the first page tables, and executing the code beginning with the first instruction to switch from the first to the second page tables. The method further comprises, fetching a next instruction of the code using a second virtual address, which is identically mapped to a corresponding machine address, turning off a memory management unit of the secondary processor, and executing a waiting loop until a predetermined location in the physical memory changes in value.

Abstract: An example method of maintaining cache coherency in a virtualized computing system includes: trapping access to a memory page by guest software in a virtual machine at a hypervisor managing the virtual machine, where the memory page is not mapped in a second stage page table managed by the hypervisor; performing cache coherency maintenance for instruction and data caches of a central processing unit (CPU) in the virtualized computing system in response to the trap; mapping the memory page in the second stage page table with execute permission; and resuming execution of the virtual machine.

Abstract: Techniques for optimizing CPU usage in a host system based on VM guest OS power and performance management are provided. In one embodiment, a hypervisor of the host system can capture information from a VM guest OS that pertains to a target power or performance state set by the guest OS for a vCPU of the VM. The hypervisor can then perform, based on the captured information, one or more actions that align usage of host CPU resources by the vCPU with the target power or performance state.

Abstract: A method of detecting virtualization in a computing system, which includes a processor having at least three hierarchical privilege levels including a third privilege level more privileged than a second privilege level, the second privilege level more privileged than a first privilege level, is described. The method includes: executing a program on the processor at a privilege level less privileged than the third privilege level, the program including a load-exclusive instruction of the processor, followed by at least one instruction of the processor capable of being trapped to the third privilege level, followed by a store-exclusive instruction of the processor; and determining presence or absence of virtualization software at least a portion of which executes at the third privilege level in response to a return status of the store-exclusive instruction.

Abstract: A local shimming system for magnetic resonance imaging and the method thereof, wherein the shimming method comprises the following steps: collecting B0 field map information using two-dimensional gradient echo (301); calculating and evaluating the homogeneity of B0 (302); optimizing the current of each channel shim coil (303); determining whether the minimum standard deviation value of ?f is obtained (304); outputting an optimal current combination values and setting an optimum current value corresponding to each channel of the shim coil on the current control software (305); and testing and evaluating the homogeneity of B0 to achieve the shimming goal (306).

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols that produce zero cross-correlation energy. Channel communication can accordingly be simplified as the zero cross-correlation property allows for channel estimation without a matrix inversion.

Abstract: Provided are an electrocardiogram signal parallel analysis apparatus, a mobile terminal incorporating the apparatus, and related methods. The apparatus includes an integrated memory, a central processing unit and a graphic processing unit. The integrated memory includes a first memory and a second memory for being used by the central processing unit and the graphic processing unit respectively, and the central processing unit may access the second memory. The central processing unit performs primary noise reduction on a received electrocardiogram original signal to obtain a primary electrocardiogram signal, and performs abnormal heartbeat classification preliminary screening on characteristic data extracted from the graphic processing unit to obtain suspected abnormal heartbeat data.

Abstract: Techniques for optimizing CPU usage in a host system based on VM guest OS power and performance management are provided. In one embodiment, a hypervisor of the host system can capture information from a VM guest OS that pertains to a target power or performance state set by the guest OS for a vCPU of the VM. The hypervisor can then perform, based on the captured information, one or more actions that align usage of host CPU resources by the vCPU with the target power or performance state.

Abstract: The present disclosure provides a GPU-based parallel electrocardiogram signal analysis method, comprising: performing a filtering process of electrocardiogram signals through a long interval artifact removal and a short interval artifact removal; performing a QRS detection of the filtering-processed electrocardiogram signals through an R-wave position extraction, a QRS complex start and end positions extraction and a QRS complex width extraction; performing an abnormal waveform classification of the QRS-detected electrocardiogram signals through template creation; wherein at least one of the long interval artifact removal, the short interval artifact removal, the R-wave position extraction, the QRS complex width extraction and the creation template is performed by a multiple threads at a GPU device side in parallel, any thread being read through its unique index number to process corresponding data.