40results about How to "Low hardware resource requirements" patented technology

The invention provides a method and device for pushing mobile internet content based on user preference for obtaining internet content preference information of a user according to access of the user and pushing pointed content to the user according to the preference information. The method for pushing the mobile internet content based on the user preference comprises the steps that first information to which the user has access is obtained according to the access behavior of the user; the network content relevant to the first information is classified to obtain second information; the preference of the user is graded according to the second information to obtain the preference information of the user, and the network content corresponding to the preference information is pushed to the corresponding user according to the preference information. By means of the technical scheme, the preference information of the user is obtained through the network, the potential customers can be located according to the preference information, and the efficiency of popularizing the network service is improved.

The invention discloses a rotating machine fault diagnosis method based on an optimized structure convolution neural network. Firstly, working signals are collected in the normal state and the fault state of a rotating machine, then are converted into gray scale images, and the gray scale images and the corresponding fault labels are used as training samples to train the constructed convolution neural network; and in the working process of the rotating machine, a working signal is collected and is converted into a gray scale image, and the trained convolution neural network is input for faultdiagnosis. The invention adopts the method of converting the collected working signals of the rotating machine into gray-scale images, and completes the task of multi-classification of faults of the rotating machine through a convolution neural network.

The invention discloses a fault diagnosis method based on adaptive manifold embedding dynamic distribution alignment. According to the method, the feature distortion of data in an original Euclidean space can be effectively avoided through the automatic calculation of the optimal subspace dimension and the calculation of the streaming kernel of a geodesic line and converted manifold feature representations; a similarity measure A-distance is introduced to define a self-adaptive factor; relative weights of condition distribution and edge distribution of sample data are dynamically adjusted, andtherefore, the distribution difference of source domain and target domain samples can be effectively reduced, the accuracy and effectiveness of rolling bearing fault diagnosis under variable workingconditions can be greatly improved. The method is high in interpretability, is lower in requirements for computer hardware resources, is higher in execution speed, and is excellent in diagnosis precision, algorithm convergence and parameter robustness. The method is especially suitable for multi-scene and multi-fault bearing fault diagnosis under variable working conditions, and can be widely applied to fault diagnosis tasks of complex systems such as machinery, electric power, chemical engineering and aviation under variable working conditions.

The invention discloses an optic axis and inertia axis superposition-based geographic tracking method which comprises the steps of computing the space pose of a carrier aiming line in real time by using a space two-point geometric algorithm according to the positioning data and the self position information of a target, computing the space angle of the aiming line relative to a carrier coordinate system by being combined with the carrier space pose and the space coordinate transformation principle, sending the angle to a servo control unit, and adjusting corresponding space pose of a turntable by the servo control unit so as to complete the geographic tracking to the target. The method is different from the image tracking method in terms of theory, therefore, the method is not influenced by the cloud, the mist and the obstacles; and when being used on aircrafts, the method is capable of avoiding the problem of losing the target due to strenuous vibration or sight shielding, so that the scouting and searching capabilities of the battlefield weapon systems are remarkably improved. The method can also be used for guide devices of various guided missiles, so as to improve the accurate attacking capability to ground targets.

The invention provides a device of eliminating interference of signal, comprising an interference checker for converting signal into frequency domain to check interference of signal, and check the interference position at frequency domain, a frequency spectrum transfer device for transferring the interference position at frequency domain to zero frequency to transfer the frequency spectrum of signal at initial position to generate an upper transfer signal, a high-pass filter for filtering out the checked interference from the upper transfer signal to generate a filtered signal, and a frequency spectrum lower transfer device for transferring the frequency spectrum of the filtered signal back to initial position to generate a signal without interface. The invention can find and filter interference position, therefore, balancer can work at ideal condition, to improve system property, which can eliminate fixed interference and treat some additional unknown single-frequency interference, with wide application, low demand on hardware resource, and easy application. The invention also provides a method for eliminating interference.

The invention discloses a method for creating a mirror image file in a logical volume and starting a virtual machine, and a server. The technical problem of relatively high requirements on local hardware resources for creating the mirror image file in the logical volume is solved. The method for creating the mirror image file in the logical volume comprises the following steps: the server sends a creation request to a cloud magnetic array, wherein the creation request is used for requesting the cloud magnetic array to create a first logical volume; the server initiates an operation of adding the first logical volume to a mapping group to the cloud magnetic array so as to add the first logical volume to a first mapping group, wherein the first mapping group is a mapping relation group between the server and the logical volume created by the cloud magnetic array; the server maps the first logical volume in the first mapping group to the server; and the server directly writes the obtained mirror image file in the first logical volume.

The present invention discloses a carrier frequency acquisition method and apparatus in which the structure of a transmission frame includes a short training sequence, the method including: delaying a received short training sequence by L sampling points and multiplying the delayed short training sequence with the original short training sequence to obtain a new sequence; delaying the new sequence by D sampling points and conjugate multiplying the delayed new sequence with the original new sequence; accumulating the results of the conjugate multiplication; and evaluating a phase from the result of the accumulation to estimate carrier frequency offset. With the above method, the present invention is capable of greatly improving the acquisition range of carrier frequency offset while requiring a simple set of hardware.

The invention provides a bus type network load self-adaptive communication method for realizing load self-adaptive scheduling. The mode switching and the bus polling are realized through a mode flag bit A and a token flag bit B in a MAC frame produced through a network node, a corresponding counter and a related register. By use of the method, a network terminal can be located in a CSMA/CD mode under the high network load, and is located in a virtual token mode under the low network load, so that the network can maintain high throughput under the high network load and maintain the high use rate under the low network load. The mode information and the token information in the method are hidden in the flag bits, and a dedicated information frame is unnecessary to transmit in the bus. The system adopting the method provided by the invention is free from deadlock after the key MAC frame is lost, and problems of high conflict rate under the high load and the low use rate under the low load in the current single bus type scheduling algorithm are overcome at the same time; the data scheduling method under the virtual token model solves the network error problem that the token frame is lost in the existing token ring technology.

The invention discloses an ARQ (Automatic Repeat reQuest) protocol-based non-orthogonal multiple access network secure transmission method. A wireless network comprises a sending node S, N users i, ibeing an element of a set {1, 2, and the like, N}, and an eavesdropping node e, wherein the transmitting node selects the user m and the user n according to channel conditions to transmit a signal x,and the user m and the user n demodulate respective target signals from the signal x; the user m and the user n respectively adopt an ARQ technology to communicate with the sending node; and furthermore, the signal power at each retransmission is successively decreased. The method disclosed by the invention has the beneficial effects of enhancing the communication reliability and reducing information leakage, and particularly has obvious advantages under a low power condition; and meanwhile, the method has low requirements on hardware resources, is easy to operate and favorable for engineeringapplication, and can be applied to a large-scale Internet of things scene.

The invention provides a method and a system for managing a user port in link aggregation. The method comprises the following steps that: transmission equipment at a sending end informs transmission equipment at a receiving end of state information of the failed user port in a virtual concatenation group at the sending end; and after knowing the failed user port at the sending end, the transmission equipment at the receiving end closes the user port at the receiving end, which has service connection with the failed user port. The scheme can be compatible with a CSF transmitting mode in a transparent transmission state and also can support the corresponding CSF transmitting mode in a link aggregation transmission state. The invention has the advantages of improving the service connection management capability of the system, ensuring the service connectivity, improving the intelligent level of the equipment, more contributing to the operation, management and maintenance of the equipment, along with simpleness, practicality and few requirements on hardware resources of the equipment.

The invention provides a GNSS (Global Navigation Satellite System) signal capturing method and device, and the method comprises the steps: carrying out the 1/N-time code rate sampling of a spreading code, compressing the length of the spreading code into L, controlling the length of each segment to be L when the satellite data is segmented, and carrying out the frequency mixing with a local carrier wave, thereby obtaining zero-frequency data; searching a satellite data NH code phase, stripping an NH code from each segment of data, and performing coherent integration to obtain a compressed satellite signal with two spread spectrum period lengths; respectively carrying out FFT operation, complex number multiplication and IFFT operation on the processed spreading code and satellite data to obtain a cyclic correlation result; solving a modulus of the result and searching a maximum value, if the maximum value exceeds a preset first threshold, judging that coarse capture is successful, and calculating a satellite signal code phase, a Doppler value and an NH code phase; code phase accurate search is carried out at a 1/2 chip interval in left and right N/2 ranges by taking a roughly captured satellite signal code phase as a center. The method is low in hardware resource consumption, and the capture signal-to-noise ratio and the capture code phase precision can be improved.

The invention provides recognizing technology of two finger gesture input of a capacitive touch screen. In the process of moving two fingers, with the change of moving tracks, the distance between the two fingers is always not changed. In the specific recognizing process, the track of a single finger is recorded and matched according to the single finger gesture so as to simplify the two finger gesture recognition to single finger recognition, so that the requirements for hardware resource demand to a touch screen chip are greatly reduced, and the two finger gesture recognizing efficiency is improved; and meanwhile, as the two finger gesture recognition is simplified to the single finger track recognition, a large amount of operation and judgment is not needed when the tracks are confirmed, the possibility of errors can be prevented, and further, the success rate of gesture recognizing is improved.

The invention discloses a vehicle detecting and grading method, system and equipment for an automotive intelligent headlamp. The system comprises a vehicle and a target vehicle, wherein the vehicle comprises a vehicle body controller, a vehicle body electronic stabilizing system, an engine electronic fuel injection system, an intelligent headlamp controller, a lamp and vehicle-mounted short-range communication controllers; each controller exchanges data through a CAN bus, and the lamp is connected with the vehicle body controller and the intelligent headlamp controller; the target vehicle comprises a vehicle body controller, a vehicle body electronic stabilizing system, an engine electronic fuel injection system and vehicle-mounted short-range communication controllers; and each controller exchanges data through a CAN bus. The system can be applied to scenes with relatively poor sights, can be utilized for simultaneously detecting information of multiple target vehicles, and is applicable to the detection and grading under complex road conditions; and furthermore, the processing is relatively easy, the information handling capacity is low, algorithms are simple, and requirements on hardware resources of an MCU are reduced.

The invention relates to an object recommendation system, method and device, electronic equipment and a storage medium, and belongs to the technical field of the Internet. In the system, a plurality of storage devices are used for storing sparse features of accounts and embedded parameters corresponding to the sparse features of the accounts, wherein the sparse feature of each account is generatedaccording to the operation behavior data of the account, and the embedded parameters are learned by the prediction model in advance; the reasoning server is used for obtaining the sparse features ofthe target account from the storage device corresponding to the target account when determining that the condition of recommending the object to any target account is met, determining the storage device corresponding to the sparse features according to a preset storage mode of the embedded parameters, reading the embedded parameters corresponding to the sparse features from the determined storagedevice, and determining the recommendation object of the target account by using the embedding parameters corresponding to the sparse features and the stored network parameters of the prediction model, wherein the network parameters are parameters, except the embedding parameters, learned by the prediction model.

The invention relates to a sweeper route deviation correction processing method and device, and the method comprises the steps: judging whether a sweeper deviates or not according to a real-time position, a historical position and a virtual wall of the sweeper after the real-time position and the historical position of the sweeper are obtained. When the sweeper deviates, the sweeper is controlled to return to the historical position. On the basis, a lightweight deviation correction processing mode is provided, route deviation correction is provided for the sweeper, the sweeper is prevented from crossing the virtual wall, the processing time is shortened, the processing stability is improved, and the requirement for hardware resources of the sweeper is low.