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68results about How to "Simple logical structure" patented technology

Trunk communication system, server and communication method

The embodiment of the invention discloses a trunk communication system, a server and a communication method. The trunk communication system in the embodiment of the invention comprises a trunk application server, a home subscriber server, a signaling access and intercommunication gateway, a group management function module and a media resource processing module, wherein the trunk application server is used for receiving a call request of a first subscriber terminal forwarded by the signaling access and intercommunication gateway and transmitting a query message to the trunk management function module after determining that the call request is group call service; the group management function module is used for querying corresponding group information according to the query message; the trunk application server is also used for indicating the media resource processing module to establish carrier for the first subscriber terminal and other group members in the group information after receiving a return message of the group information and initiating a session setup request to the other group members in the group information. According to the embodiment of the invention, logic entity partitioning and system allocation are performed on an MCPTT (Mission Critical Push To Talk) frame to facilitate trunk delay optimization.
Owner:SHANGHAI HUAWEI TECH CO LTD

Turbofan engine steady state transition state multivariable control method based on self-disturbance rejection theory

ActiveCN109441644AMeet multivariable control requirementsAvoid dangerGas turbine plantsJet propulsion plantsMulti inputDifferentiator
The invention relates to a turbofan engine steady state transition state multivariable control method based on a self-disturbance rejection theory, and belongs to the technical field of aero-engine control. The turbofan engine steady state transition state multivariable control method comprises the following steps that firstly, the control quantity and the controlled quantity of a plurality of sets of turbofan engines are preliminarily selected, then a correlation analysis method is used for further determining the control quantity and the controlled quantity which are relatively large in correlation; a tracking differentiator is adopted for planning each group of control instructions into a tracking track, then is taken together with the current state estimated by the expansion state observer to serve as an input of the nonlinear proportional-differential controller an input calculation control amount for nonlinear proportional-differential controller, meanwhile, a proper structure isused for offsetting the expansion state observer to observe the total disturbance including the coupling among the multiple variables, so that a good control effect is achieved. According to the turbofan engine steady state transition state multivariable control method, multi-input multi-output of turbofan engine requirement is met, meanwhile, target for control requirements is achieved accordingto preset trajectory operation, compared with the design method of a traditional control controller, the difficulty is smaller, the number of parameters needing to be adjusted is small, the physicalsignificance is very clear, and the robustness of the system is greatly improved.
Owner:DALIAN UNIV OF TECH +1

Method for controlling intelligent shoe cabinet

The invention relates to a method for controlling an intelligent shoe cabinet. An intelligent control system is arranged in the intelligent shoe cabinet and consists of a computer panel 1, a power panel 2, a heater 3, a humidity probe 4, a temperature probe 5, a sterilization device 6, a dehumidifying device 7, a fan 8 and a display controller 9, wherein the computer panel 1 automatically starts a dehumidifying and sterilizing program according to the preset working frequency generally in 6 to 10 hours to operate; when the computer panel 1 detects that the humidity value of air in the cabinet is lower than the preset humidity lower limit, operation is stopped and timing is started again; and when the timing reach the preset working frequency, the computer panel 1 automatically starts the dehumidifying and sterilizing program to operate. By the method, temperature upper limit and lower limit can be set according to requirements and variety and quantity of the stored articles. The method can be popularized and applied to cabinets such as shoe cabinets, garderobes, cupboards, storing cabinets and the like. The logical structure is simpler, working frequency can be preset, and the system can automatically detect and start to operate, so fully-automatic operation can be realized and manual intervention is not required.
Owner:刘毓珍

Mine operating condition 3D visualization method based on object-message tree

InactiveCN103839186AEasy to judgeFor the purpose of visualizationData processing applicationsObject basedState variation
The invention provides a mine operating condition 3D visualization method based on an object-message tree. The method comprises the following steps of establishing a true 3D model of a mine, establishing connection with a monitoring data server, establishing a mapping relation between monitoring points and virtual objects in a scene, establishing an object-message tree of all production systems, establishing a visualization manager, establishing and starting a sound monitor, activating a corresponding virtual object, making the sound monitor continue to receive a next group of real-time monitoring data, breaking connection with the monitoring data server and then quitting an operating condition 3D visualization process. According to the mine operating condition 3D visualization method based on the object-message tree, the object-message tree is used for judging states of the virtual objects and transmitting state change messages, and the 3D real-time rendering technology and the sound-light alarm technology are used for realizing visualization of operating conditions of all the production systems of the mine; the object-message tree adopted in the method is of a flexible hierarchical structure, can describe any complex production system and the logical structure of internal devices of the production system, is easy to realize, and is particularly suitable for operating condition visualization of the production systems.
Owner:TIANDI CHANGZHOU AUTOMATION +1

Hardware lock implementation method and device for multi-core processor

ActiveCN102937915AImprove synchronization efficiencySmall hardware implementation costResource allocationComputer hardwareMassage
The invention discloses a hardware lock implementation method and device for a multi-core processor. The method comprises the following steps of: 1) establishing a lock request queue in one-to-one correspondence with a processor core, and initializing and setting the weight of each lock request queue, wherein the lock request queue respectively caches a hardware lock access request sent by each processor core according to the principle of first in first out; and 2) selecting a lock request queue which has the smallest weight and an effective request so as to obtain a service, increasing the weight of the lock request queue progressively after the service is obtained, meanwhile, selecting the first-in hardware lock accesss request from the lock request queue which obtains the service, and carrying out lock storage space access operation, and then returning a response massage. The device comprises a lock request queue unit, a weight counting logic unit, the lowest weight judgement logic, a queue selector and hardware lock storage space access logic. The hardware lock implementation method and device for the multi-core processor has the advantages that each processor core has equalized chance to obtaining the hardware lock, hardware implementation price is low, expanding property is good, the structure simple, and the method is easy to implement.
Owner:NAT UNIV OF DEFENSE TECH

Method for positioning molten iron torpedo tank trucks

The invention discloses a method for positioning molten iron torpedo tank trucks, and belongs to the technical field of methods for positioning tank trucks. The method has the advantages that the temperatures of torpedo tank targets are sensed in a non-contact manner, accordingly, the molten iron torpedo tank trucks can be positioned, torpedo tank truck positioning requirements for filling the torpedo tank trucks with molten iron by tapping holes of metallurgical blast furnaces, filling molten iron trucks with molten iron by the torpedo tank trucks of steelmaking pouring stations, measuring the weight of the molten iron in the torpedo tank trucks or measuring the liquid level of molten iron in torpedo tanks and the like can be met, and the problems of filled molten iron overflow or influence on the detection accuracy and the like due to positioning errors can be solved; the method can be implemented by few equipment, logic structures are simple, maintenance is simple and convenient, the maintenance cost is extremely low, the method can be popularized and applied to automatically detecting the liquid level of liquid surfaces of the molten iron in the torpedo tank trucks and automatically measuring the weight of the molten iron, and the like.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Method for detecting whether current application positioned on foreground or not

The invention discloses a method for detecting whether a current application is positioned on a foreground or not. The method comprises the following steps: performing counting processing on interface operation of a started application program by using a counting module; judging whether the application program operates on the foreground or on the background according to the counting. Particularly, when the interface of the application program finishes the creation and is visible on the screen, counting is performed and one is added by the counting module; when the interface of the application program is invisible on the screen and is not destroyed, counting is performed and one is subtracted by the counting module; when a counting value of the counting module is 0, the application program runs on the background; when the counting value of the counting module is not equal to 0, the application program runs on the foreground. The technical scheme of the invention has the beneficial effects that compared with a traditional detection method, the method disclosed by the invention has the characteristic of simple logic structure; system overhead is effectively reduced, and the running efficiency of the system and software is improved.
Owner:ZHONGKE INFORMATION SECURITY COMMON TECH NAT ENG RES CENT CO LTD

Processing method and device of chip configuration information

The invention relates to the technical field of internets, in particular to a processing method and device of chip configuration information. The method and device aim at solving the problem that reading of existing chip configuration information is easily influenced by abnormal environment interference or malicious destruction, which influences the work of a chip in turn. The method comprises the steps that each group of configuration information which is saved in advance is read in a first designated memory area, aiming at one or more groups of read configuration information, a corresponding proof test value is calculated, and whether the calculated proof test value is in accordance with a reference proof test value which is saved in a second designated memory area or not is judged; if not, an output result is determined based on each preset processing mode of each group of configuration information; accordingly, after the chip is powered on, even if the read configuration information is influenced, corresponding processing can be conducted based on the preset processing mode corresponding to each group of configuration information, so that a final output result cannot influence the normal work of the chip, the stability and the safety of a chip system are improved, the logical structure is simple, the occupied resources are few, and the method is wide in application range.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI

Fault pole selection method utilizing decaying aperiodic components

The invention belongs to the field of fault pole selection for a direct current power transmission line, and relates to a fault pole selection method utilizing the decaying aperiodic components. The method comprises the following steps: reading measuring end currents of a positive line and a negative line acquired by high-speed acquisition devices at measuring ends; carrying out detection and calibration on the acquired currents through wavelet decomposition, so that the decaying aperiodic components are obtained, and energies of the decaying aperiodic components are further calculated; and comparing the energies of the decaying aperiodic components of the measuring end currents of the positive line and the negative line, determining the pole with a larger decaying aperiodic component energy as a fault pole, and determining that both the positive line and the negative line are faulted if the energies of the decaying aperiodic components calculated for the positive pole and the negativepole are identical. The method provided by the invention has the advantages that the decaying aperiodic components within a short time window after the fault are extracted, and whether the decaying aperiodic components of the positive line and the negative line are obviously different or not is judged, so that reliable pole selection can be facilitated.
Owner:KUNMING UNIV OF SCI & TECH
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