116results about How to "Conducive to reasonable distribution" patented technology

The invention discloses a motor imagery EEG pattern recognition method based on the time-frequency parameter optimization of an artificial bee colony. The method comprises the steps of conducting the leads selection based on the linear decision rule, selecting time-domain and frequency-domain optimal parameters based on the artificial bee colony algorithm, extracting features based on the common spacial pattern algorithm, and finally classifying features based on the linear discriminant analysis algorithm. The result of the method shows that, a lead channel of larger inter-class distinction degree can be effectively selected based on the lead selection algorithm. At the same time, based on the time-frequency parameter optimization algorithm of the artificial bee colony, a time window and a frequency band of larger inter-class distinction degree can be automatically selected, so that a better classification effect is obtained. The method is capable of effectively recognizing different motor imagery modes. Compared with the traditional parameter manual selection method and the frequency-domain parameter automatic selection algorithm, global optimal parameters can be automatically searched in both time domain and frequency domain at the same time based on the above method. Therefore, the feature extraction and feature classification effect for motor imagery EEG signals is improved.

The invention relates to an electropneumatic braking method and an electropneumatic braking system with fault complementation control on the basis of single-axis control, which is characterized in that two independent embedded type electropneumatic braking units are adopted, and each unit comprises a control circuit, a piezoelectric relay valve, a piezoelectric ventilation valve and a corresponding pressure sensor; the two units are managed by a communication and management circuit and arranged near a steering frame; and two axles on the same steering frame are controlled by the two embedded type electropneumatic braking units respectively. The method and the system can greatly reduce the volume of a cylinder and a pipeline by directly controlling a single braking cylinder, and have the advantages of rapid control response, high precision and good safety.

The invention discloses a long-term network traffic prediction method based on deep learning, and the method comprises the steps: obtaining a regional network traffic sequence, and carrying out the statistics of a traffic value used at each moment; preprocessing the traffic matrix sequence, and obtaining the input data of a Transform model; establishing a Transform model, and carrying out adaptive extraction of temporal correlation and spatial correlation on the two-dimensional matrix data by adopting the Transform model; and finally, carrying out model training by adopting a self-adaptive training mechanism. According to the method, the accuracy of multi-step long-term prediction of the network flow is improved, so that an operator can plan future network resources in advance, and the reasonable allocation of wireless resources is facilitated.

The invention relates to a voice data dynamic delay scheduling method and a base station. The dynamic delay scheduling method comprises the steps of judging whether a semi-persistent scheduling mode is opened or not and whether UE (user equipment) supports the semi-persistent scheduling mode or not; carrying out scheduling in the semi-persistent scheduling mode if the semi-persistent scheduling mode is opened and the UE supports the semi-persistent scheduling mode; judging whether a dynamic delay scheduling mode is opened or not if the semi-persistent scheduling mode is not opened or the UE does not support the semi-persistent scheduling mode, if yes, binding two continuous voice data packets to carry out scheduling in the dynamic delay scheduling mode; and if no, carrying out scheduling in a dynamic scheduling mode. Through adopting the dynamic delay scheduling method and the base station provided by the invention, half of the overhead of PDCCH (physical downlink control channel) resources is reduced. Meanwhile, a high modulation and coding level is kept, and the flexibility of voice service scheduling is improved, thereby being conducive to reasonable distribution of channel resources, and improving the user capacity of the base station.

The invention discloses a partitioning method for underground pipe network general survey in municipal administration, and the method comprises the following steps: (1) collecting pipe network data ofa region to be generally surveyed, obtaining pipe point data and pipe section data according to the pipe network information of the region to be generally surveyed, and constructing a topological structure diagram of a pipe network; (2) extracting a backbone network of the underground pipe network based on a cutting algorithm; (3) dividing the underground pipe network into a plurality of minimumpartition units by taking the length of the pipe network as a convergence condition based on a community discovery algorithm; (4) inputting the specified number of general survey partitions, and aggregating the minimum partition units of each pipe network by taking the length and the area of the minimum partition units as constraint conditions; (5) outputting a pipe network partition result, wherein the pipe network partition result comprises pipe network vector data and statistical information such as pipe network length and area of each partition. According to the method, the defects that inurban underground pipe network management general investigation work, a traditional regular grid partitioning method destroys pipe network continuity, general investigation workloads are not uniformand the like are overcome.

Provided is a five-in-one control drive system of a pure electric sport utility vehicle (SUV). The five-in-one control drive system of the pure electric SUV comprises a drive motor, a five-in-one controller, a battery management system (BMS), a decelerator, a differential mechanism, a vehicle-mounted power storage battery set, a vehicle-mounted low-voltage power supply and a fuse box. The drive system further comprises a vehicle chassis and an installation cabin which is arranged at the end, close to a front vehicle head, of the vehicle chassis. The space in the installation cabin is sequentially divided into an upper space body, a middle space body and a lower space body from top to bottom. Storage battery modules of the vehicle-mounted power storage battery set are installed on the vehicle chassis and in the middle space body of the installation cabin. The five-in-one controller, the BMS, the vehicle-mounted low-voltage power supply and the fuse box are installed in the upper space body of the installation cabin. The drive motor, the decelerator and the differential mechanism are installed in the lower space body of the installation cabin. The five-in-one control drive system is small in size, the compact and reasonable arrangement structure of the drive system facilitates reasonable distribution of front and back axle loads, and accordingly safety and comfort of the whole vehicle are improved.

The invention relates to a kitchen monitoring management system for a catering enterprise, and the system consists of monitoring terminals, a monitoring platform, clients, a laser sensor, a video monitor and kitchen equipment. The system is provided with a monitoring platform, and the monitoring platform is connected with many monitoring terminals and clients through a network, so as to carry outthe information processing and transmission. The monitoring terminal is connected with the laser sensor, the video monitor and the kitchen equipment, wherein the laser sensor, the video monitor and the kitchen equipment are installed in the kitchen. The clients comprise a computer client and a cellphone client, and have different authority levels. The related information of the monitoring terminals of a monitored kitchen correlated with one authority level can be checked according to the authority of the client, and the authority level of the client can be set according to the management structure of the catering enterprise. The job position of a security and protection manager determines the level of the client that the security and protection manager can log in. The system can achieve the centralized control of a large number of kitchens, facilitates the leveling management, achieves the detection of gas leakage, and achieves the fire-fighting and early-warning purposes.

The present invention provides an intelligent terminal and a management method for a container system thereof. The method comprises: after a slave management service CSS module configured in the container system receives a switching request input by a user, sending the switching request to a container management service CMS module configured in a host system; after the CMS module receives the switching request send by the CSS module, deciding to perform a switching operation, according to operating state information of the container system to which the CSS module belongs and occupation information of system resources, and then sending a foreground and background transformation signal; and after the CSS module receives the foreground and background transformation signal, adjusting a state of a process in the container system to which the CSS module belongs. By using the intelligent terminal and the management method for the container system thereof, which are provided by the present invention, management of a foreground and a background of the container system can be provided, thereby enhancing the utilization rate of the system resources, and improving functionality, flexibility and security of the container system management.

The invention relates to a method for automatically sensing the experience quality of a China user on a satellite constellation, which belongs to the technical field of wireless communication and comprises the following steps of: dividing the land area of China into a plurality of regions by using STK, and acquiring a region coverage performance parameter V (i) by using the STK; determining whether the satellite covers the target region or not, and if so, obtaining the Internet of Things equipment density of each region; calculating a communication blocking rate B (i) and communication qualityQ (i); calculating the required capacity C (i) of each region; calculating the communication cost and income performance W (i) of each region; automatically generating experience quality performanceindexes in each grid region of China by using a weighted overall evaluation formula; and taking the QoE factors as optimization target indexes, establishing an experience quality evaluation model, andsolving the optimal experience quality E through a multi-layer tabu search algorithm MTLS. According to the invention, the experience degree of using satellite communication by a user is improved, and the quantitative evaluation of the experience quality is realized.

The invention discloses a power control and channel allocation method based on energy collection in a 5G D2D system, and the method comprises the steps: firstly, constructing an interference weight graph according to the channel gain ratio of D2D users, and clustering the D2D users according to the interference weight graph so as to minimize the common channel interference of the D2D users in thesame cluster; Secondly, modeling the D2D users in the same cluster as a non-cooperative game, deducing an optimal expression of D2D user transmission power and acquisition time by constructing a Lagrangian function and utilizing a KKT condition, and allocating the optimal transmission power and acquisition time to the D2D users by a joint iterative optimization method; And finally, according to the capacity of each D2D cluster when each cellular user channel resource is multiplexed, using a KM algorithm to distribute channels for the D2D cluster with the purpose of maximizing the total capacity of the D2D users. The limitation of common channel interference and collected energy is considered at the same time, energy distribution is more optimized and reasonable, the minimum signal to interference plus noise ratio requirement of cellular users is considered when power is distributed to the cellular users, and power consumption is effectively reduced.

The invention relates to a long-focus biprism periscopic lens, which comprises an optical reflection element I, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens andan optical reflection element II from the object side to the image side. The optical reflection element I bends an optical path, and has an angle of 45 degrees between the reflection surface and theoptical axis. The first lens has a positive refractive power, and the object side is concave at the optical axis. The second lens has a positive refractive power and a meniscus shape, the image side is a convexity. The third lens has a negative refractive power, the object side is a convexity at the optical axis, and the image side is a concavity. The fourth lens has a positive refractive power, the object side is a convexity. The fifth lens has a positive refractive power, the image side is a concavity at the optical axis. The sixth lens has a positive refractive power, and has an inflectionpoint in the image side. The optical reflection element II bends the optical path, and has an angle of 45 degrees between the reflection surface and the optical axis. The long-focus biprism periscopiclens realizes a periscope function and satisfies the configuration of the ultra-thin thickness of a mobile phone by changing the direction of the optical axis, and realizes the purpose of not occupying the screen area of the mobile phone by matching a mechanical telescopic mechanism on the mobile phone.

The invention provides an access configuration method and an information providing method and device, and belongs to the technical field of communication. The method comprises the following steps: a gateway receives an access request, wherein the access request carries identification information and authentication type information of customer premises equipment; the gateway sends an information acquisition request to a controller, wherein the information acquisition request is used for indicating the controller to return configuration information; the gateway receives the configuration information sent by the controller; and the gateway carries out access configuration on the customer premises equipment according to the configuration information. According to the invention, when the gateway receives the access request of the customer premises equipment, the configuration information with timeliness is obtained from the controller in real time, and the access configuration is carried out on the customer premises equipment, so that an access failure phenomenon possibly caused by the fact that the configuration information of the customer premises equipment in the gateway cannot be updated in real time can be effectively avoided.

The invention discloses a regional garbage management system. The system at least comprises an information exchange central system, an interaction platform and a plurality of intelligent garbage cansarranged in regions, wherein the intelligent garbage cans are connected to the information exchange central system in a wireless manner for acquiring garbage data information and sending the data to the information exchange central system; the information exchange central system is connected to the interaction platform for uploading the acquired data to the interaction platform; and the interaction platform can display and analyze the garbage contents of the garbage cans in real time and provide the shortest garbage cleaning line in demand. Work staff clean garbage in corresponding regions efficiently and conveniently, the labor cost is saved and the environmental cleaning degree is improved.

The invention discloses a WiFi access point switching method and device. The method includes the following steps that: a first access point receives terminal position information transmitted by a mobile terminal, and the first access point judges whether the mobile terminal is moving to a second access point according to the terminal position information and adjacent access point position information which is pre-stored locally; when the mobile terminal moves to the second access point, and the first access point confirms that the mobile terminal is closer to the second access point, the first access point obtains the access information of the second access point; the access information is transmitted to the mobile terminal; and when the mobile terminal successfully establishes a connection with the second access point according to the access information, the first access point disconnects the connection with the mobile terminal. With the WiFi access point switching method and device provided by the technical schemes of the invention adopted, the smoothness of a network and reasonable allocation of network resources can be benefitted, and user's experience can be improved.

The invention relates to a charging control method and device based on an unmanned aerial vehicle, which relates to the field of transportation vehicles and can solve a problem of energy supplement for transportation vehicles. The charging control method comprises the steps of determining a charging busy area and a charging idle area based on the obtained charging demand and the number of unmannedaerial vehicles in a geographical area where the charging position of a transportation vehicle to be charged is located; and sending a dispatching instruction to an unmanned aerial vehicle in the charging idle area so as to enable the dispatched unmanned aerial vehicle to fly to the charging busy area to which the unmanned aerial vehicle is dispatched to charge the transportation vehicle to be charged in the charging busy area to which the unmanned aerial vehicle is dispatched, wherein the dispatching instruction comprises location information of the charging busy area to which the unmanned aerial vehicle is dispatched.

The invention relates to the field of optics, in particular to a zoom lens and an imaging device.The zoom lens sequentially comprises a first lens group with positive focal power, a second lens group with negative focal power, a third lens group with negative focal power, a diaphragm and a fourth lens group with positive focal power from the object plane side to the image plane side; the second lens group and the third lens group move in the main optical axis direction of the zoom lens, and the moving directions of the second lens group and the third lens group are the same; the zoom lens satisfies the following conditional expressions: TTL < 100 mm; FNO is less than 1.8; wherein TTL is the total optical length of the zoom lens, and FNO is the number of apertures of the zoom lens. According to the technical scheme, the zoom lens with a small size is realized, meanwhile, a large aperture number can be realized, the shooting effect of the zoom lens in a low-illumination environment is improved, and the user experience is improved.

The invention discloses a material storage management method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of receiving a material donation request, obtaining donation data in the request, and executing warehousing publicity to trigger a warehousing process; extracting donator information and logistics information in the donation data to update a preset material information table; identifying article information in the donation data, adding the article information to a preset warehousing article information table, determining a warehousing warehouse to submit a warehousing list, and generating a receiving function to execute donation warehousing information publication after a warehousing completion instruction is obtained, wherein the preset material information table is updated or added to the preset warehousing article information table by calling the preset interface of the database server. Therefore, the implementation mode of the invention can solve the problems of low efficiency and serious resource waste of existing massive material donation management.

The invention discloses a remote material drawing method, and belongs to the medical field. The method comprises the steps that S1, an operating terminal enables the case information correlated with amaterial drawing object to be uploaded to a consultation platform; S2, the consultation platform transmits the case information to a diagnosis terminal; S3, the diagnosis terminal generates an operation instruction according to the case information, and uploads the operation instruction to the consultation platform; S4, the consultation platform transmits the operation instruction to the operating terminal; S5, the operating terminal controls a material drawing module to obtain a slice image of the material drawing object according to the operation instruction, and uploads the slice image tothe consultation platform. The beneficial effects of the invention are that the method can achieve the obtaining of the slice image timely and simply when a digital pathological section scanner has afault in operation.

The invention provides a power system communication mode bill compilation method based on multi-scheduling constraints. The problem that the manual power communication bill compilation mode is low in working efficiency and poor in resource utilization rate is solved. According to the scheme, the power system communication mode bill compilation method comprises the following steps of manually acquiring basic data required for communication mode bill compilation by using a server; automatically compiling a basic information table of a mode bill according to inputted basic information; setting multi-scheduling constraints of communication mode routing according to business features and scheduling demand of a required communication mode; performing search analyzing on a network topology by using an analyzing server according to the multi-scheduling constraints; generating communication mode routing meeting requirements on the multi-scheduling constraints; automatically forming a business circuit executing table; compiling and forming a communication mode bill by using the analyzing server; and changing state information of communication resources according to mode routing data. The power system communication mode bill compilation method is mainly used for compiling a power system communication mode, is easy to operate and use and has high practicality in a power system.

The invention belongs to the field of application of a power electronic device in a power distribution network, and particularly relates to a power control method of a three-end intelligent soft switch. The three-end intelligent soft switch is used and connected with three different power distribution regions, the three-end intelligent soft switch is controlled by employing a DC current control strategy, the DC current control strategy is divided to a voltage-current control strategy and a power-current control strategy, the three-end intelligent soft switch is divided to two conditions of one-end rectification and two-end inversion and two-end rectification and one-end inversion according to an actual running state, and a dispatching system is used for allocating a transmission power of the three-end intelligent soft switch according to device capacity demands of different power distribution regions. A theoretical reference is provided for power allocation of the three-end intelligentsoft switch, so that the three-end intelligent soft switch of the power electronic device can be applied into a power distribution network very well.