39results about How to "Simple logical relationship" patented technology

The invention relates to a real-time scheduling method for a reservoir group water supply and transfer system and belongs to the field of reservoir scheduling operation. The scheduling method comprises in-reservoir runoff forecasting and water demand forecasting, scheduling method and real-time correction. According to the characteristics of the reservoir group water supply and transfer system, an in-reservoir runoff forecasting method, an optimal scheduling modeling solving method, coupling and nesting modes in different time periods and system real-time scheduling specific flow are designed; and with the water demands of different users being taken into consideration, and under the precondition of guaranteeing water supply safety, water sources are allocated optimally, and maximizing of water supply benefits is realized.

The invention provides a multimode frequency controller and a switch power supply frequency control method in order to simplify the structure, lower the design difficulty and the manufacture difficulty, reduce the area, lower the power consumption and the like. The multimode frequency controller comprises a capacity, a voltage and current conversion module, a frequency control module and a frequency generating module, wherein the voltage and current conversion module is used for converting a load feedback voltage into a feedback current, the feedback voltage is in positive correlation with a load value, the feedback current values correspond to the feedback voltage values one by one; the frequency control module is used for charging the capacitor according to the feedback current obtained by the conversion of the voltage and current conversion module and jumping the state of an output module when the capacitor is charged to the preset voltage or the voltage of the capacitor is higher than the preset voltage and an edge detection signal of a power pipe control signal arrives; and the frequency generating module is used for generating a power pipe control signal of a new working frequency according to the output signal of the frequency control module.

The invention relates to an intelligent piloting driving switch control method and a system based on L2 level. The method comprises following steps that whether an adaptive cruise function (ACC) of anautomobile is in an on state or not can be detected in the driving state of the vehicle; when the adaptive cruise function ACC is in an on state according to a determining result, after an on instruction at least comprising a lane keeping assist function LKA is received, the vehicle is controlled to be switched to the intelligent piloting driving mode; and when the adaptive cruise function ACC isin the off state, only response to a received control instruction of a transverse auxiliary function is provided, wherein the transverse auxiliary function comprises at least one of the lane keepingauxiliary function LKA and a lane departure early warning function LDW. The control method of the intelligent piloting driving switch based on the L2 level is convenient for the free switching of theintelligent piloting driving mode, and practical application is facilitated.

The invention relates to a portable power source renting method and device. The portable power source renting operation is conducted through the device by means of a central processing unit and at least one charging unit connected to the central processing unit, and the single-grade control of the central processing unit over the charging units is realized. It is ensured that a user quite conveniently rents a portable power source in a self-service mode from the portable power source renting device, the defects that due to the graded control adopted by an existing portable power source renting device, the control speed is low and reliability is not high are overcome, the portable power source renting reliability and reaction speed are improved by means of the single-grade control, the portable power source renting device is simple in structure and low in cost, and user experience is greatly improved.

The present invention provides a method and device for service multi-path protection, the method comprising: establishing a protection path group including multiple protection paths for the working path of the service, and selecting a preferred protection path in the protection path group; when the When the working path fails, the service is switched to the preferred protection path. According to the invention, multi-path protection can be provided for services.

The invention discloses a fire-fighting equipment control system based on a CAN bus. The fire-fighting equipment control system comprises a CAN bus communication circuit, a master control module, and a plurality of controller nodes. The CAN bus communication circuit comprises at least one CAN controller and at least on CAN transceiver, has a receiving and transmitting function, and may filter messages. The master control module is connected with the CAN bus communication circuit, may monitor the operating state of the system, and controls the operation of the system. The plurality of controller nodes are connected with the CAN controller, may independently process corresponding data, and achieves communication with the CAN bus communication circuit. The distributed architecture based on the CAN bus may add and delete node equipment any time, is simple in logical relationship, and reduces a failure rate. A fire-fighting equipment fuzzy control method based on a CAN bus is provided for determining whether to activate a smoke evacuation device or a fire-fighting water pump by computing a fire assessment coefficient, preventing smog sensor misjudgment, and achieving accurate fire extinguishing.

The invention discloses a novel structure of a frequency controller, and the novel structure can change according to output loads. According to the novel structure, feedback voltage of an output load is converted into a feedback current, the feedback current is mirrored to a circuit where the feedback current is converted into voltage, and the feedback current is used for charging a fixed capacitor together with another fixed current. The time when the voltage of the fixed capacitor reaches a set value is determined according to the charging current, and therefore output signal frequency of a comparator is determined. The output signal frequency of the comparator is used for determining the frequency of a switching power supply system. The novel structure comprises a voltage-controlled current source part which is used for converting the feedback voltage into the feedback current. Meanwhile, the novel structure further comprises the comparator which is used for converting the charging current into voltage and comparing the voltage with fixed reference voltage. The comparator outputs signals to realize modulation of the frequency of the switching power supply system.

The present invention provides a half-duplex serial communication bus peripheral equipment interface, including physical layer protocol implementation module, high layer protocol implementation module and interface module; the described interface module is connected with two data wires in SPI bus, namely main equipment input / slave equipment output data wire, and main equipment output / slave equipment input data wire, and also connected with reading data signal wire and writing data signal wire so as to form reading / writing data channel of said interface. Said invention also includes SPI data wire multiplex module.

A signal classifying method and apparatus are disclosed. The signal classifying method includes: obtaining a spectrum fluctuation parameter of a current signal frame determined as a foreground frame, and buffering the spectrum fluctuation parameter; obtaining a spectrum fluctuation variance of the current signal frame according to spectrum fluctuation parameters of all buffered signal frames, and buffering the spectrum fluctuation variance; and calculating a ratio of signal frames whose spectrum fluctuation variance is above or equal to a first threshold to all the buffered signal frames, and determining the current signal frame as a speech frame if the ratio is above or equal to a second threshold or determining the current signal frame as a music frame if the ratio is below the second threshold. In the embodiments of the present disclosure, the spectrum fluctuation variance of the signal is used as a parameter for classifying the signals, and a local statistical method is applied to decide the type of the signal. Therefore, the signals are classified with few parameters, simple logical relations and low complexity.

The invention belongs to the field of hydraulic steering techniques for double-drum rollers, and particularly relates to a lockable hydraulic crab steering system for double-drum rollers. The steering system comprises an oil tank, a hydraulic pump, a steering gear, a crabbing valve, a first crabbing cylinder, a second crabbing cylinder, a first steering cylinder and a second steering cylinder; after passing through the hydraulic pump, the steering gear and the crabbing valve, the oil in the oil tank is divided into a steering loop and a crabbing loop, and then flows back into the oil tank via the steering gear; the steering loop is connected in parallel with the crabbing loop; the crabbing valve comprises a two-position six-way electromagnetic reversing valve, a first balance valve and a second balance valve; the steering loop is connected with the two-position six-way electromagnetic reversing valve; and the crabbing loop is connected with the two-position six-way electromagnetic reversing valve respectively through the first balance valve and the second balance valve. The arrangement of the steering system is compact, steering operation and crab steering operation can be realized, moreover, the linear running of a double-drum roller can be guaranteed, and the efficiency of operation and the quality of rolling can be increased.

The invention relates to range hood cookers, in particular to a hearth plate of a totally-closed air curtain range hood. The four sides of the hearth plate are provided with angle-adjustable strip-shaped air outlets; and by means of the hearth plate of the totally-closed air curtain range hood, a totally-closed tapered air curtain can be formed, cooking fumes can be totally closed in the tapered air curtain, and the cooling fumes are conveyed to a suction port of a range hood along with the tapered air curtain and discharged out of a kitchen completely through the range hood. The hearth plateof the totally-closed air curtain range hood comprises a hearth plate body, a draught fan, a noise elimination plenum chamber, angle-adjustable strip-shaped air outlets, the range hood, the totally-closed tapered air curtain, an air-input grille, an airflow-stabilizing grille and a steel wire safety net. The hearth plate of the totally-closed air curtain range hood is characterized in that angle-adjustable strip-shaped air outlets are formed in the hearth plate body; air enters through the air-input grille and is conveyed by utilization of the draught fan; and then the air passes through the airflow-stabilizing grille, enters the noise elimination plenum chamber and is discharged from the angle-adjustable strip-shaped air outlets, and the totally-closed tapered air curtain is formed. The angle-adjustable strip-shaped air outlets are provided with corresponding air output angles, and a beveled air curtain is formed by the air discharged. A closed rectangular pyramid is formed by air curtains on four sides and the range hood; the cooling fumes are discharged out of the kitchen completely through the range hood; and pollution of the kitchen by the cooling fumes and damage to human bodies by the cooling fumes are completely isolated.

The invention discloses a wireless field marketing platform-based advertisement push system and push method. According to the wireless field marketing platform-based advertisement push system and pushmethod of the invention, an information acquisition module performs information collection and integration on the browsing content of a user and sends integrated information to an information summarizing module; a logic module obtains commodity information acquired by the information acquisition module from the information summarizing module and analyzes all commodities; the logic module screensout similar commodities from a commodity information module according to an analysis result; and a commodity push module pushes and displays the commodities. According to the wireless field marketingplatform-based advertisement push system and push method of the invention, logic analysis is performed on the commodity information browsed by the user, and then, the similar commodities are screenedout and pushed, and therefore, the sales volume of the commodities can be improved; both the commodity information and the browsing information of the user are screened, so that the accuracy of advertising is improved, and therefore, the sales volume of commodities of a shopping platform can be improved. The logical relationships of the system are simple, so that the system can be suitable for theadvertisement push of various platforms, and has high practicability.

The invention discloses a risk evaluation method for a gas pipe network, and belongs to the field of gas pipe networks. The risk evaluation method comprises the steps of dividing a target area into aplurality of sub-areas, and obtaining failure frequencies of a plurality of risk factors and failure consequences of a plurality of consequence factors of each sub-area; multiplying each failure frequency in the current sub-region by all failure consequences in the current sub-region one by one to obtain a plurality of risk values corresponding to each risk factor in each sub-region; comparing therisk values of the same risk factor of the plurality of sub-regions, and obtaining the maximum risk value of each risk factor in the target region; and determining the risk level of each risk factorin the target area according to the maximum risk value of each risk factor. The risk evaluation method provided by the invention has the advantages of simple logic relationship, simple calculation process and strong operability, can determine the relative importance of various risk factors and evaluate the risk level, realizes the risk management of the gas pipe network, and improves the safety level of the gas pipe network.

The invention discloses a curtain remote controller and a remote control stroke setting method thereof. The curtain remote controller and a curtain driving motor adopt remote control keys to control the curtain driving motor to work. The upper stroke and the lower stroke of the curtain are set by deploying and controlling keys. Therefore, the curtain can move in the interval, so that the stroke interval can be adjusted at will as required; meanwhile, the curtain remote controller adopts a change-over switch to form a remote control module and a setting module of the curtain remote controller,so that the function key modules of the remote controller are clearly divided, the disorder of the user due to excessive keys is avoided, and the identification of the user is facilitated; a concise operation interface can be provided;, the logic relationship of the curtain remote controller is simplified; and the misoperation of the user is avoided.

The invention provides an indoor multi-level semantic topological index construction method for complex navigation application. The method comprises the following steps: acquiring a live-action three-dimensional model of a target complex, and synchronously matching a corresponding relationship between semantic and geometric components in a space building object to obtain an indoor unit model with complete topological consistency; extracting passable areas, and abstracting the passable areas as leaf nodes; constructing a scene similarity-oriented multi-dimensional correlation function, and performing grouping processing on the leaf nodes to generate an aggregation unit; and splitting and superposing the interiors of the aggregation units to obtain a connection relationship between the indoor unit models and a connection relationship between the aggregation units, and constructing a connectivity graph index from inside to outside. In this way, the problem that the communication relation expressed by a single topological structure is disordered can be solved, the logical relation of indexes can be simplified, and the time efficiency and accuracy of target searching in a path planning task are improved.

The invention relates to an image fusion mosaic method based on a parallel computing algorithm, belonging to the technical field of image processing. Comprising the steps of: Setting splicing mode; Acquiring basic information of two images to be fused; Creating spatial correspondence between two scene images by data resampling; Fusion and mosaic of two images; Save the image file after fusion splicing; End fusion splicing. The invention puts forward the technical idea of exchanging space for time. By establishing the space between two scene images and the one-to-one correspondence relation onthe image data, the invention achieves the data processing ability suitable for parallel calculation, simplifies the algorithm logic relation, strengthens the program structure, automates the operation, and has high efficiency and high speed.

The invention relates to the switch equipment field and especially relates to a three-station isolation switch and a travel switch. The travel switch of the three-station isolation switch comprises aswitch body and a signal pole. The signal pole is hinged to first and second self-reset swing components. The first self-reset swing component has a first swing component stop position. The second self-reset swing component has a second swing component stop position. During usage, during isolation opening, a main shaft linkage component presses the signal pole through the first self-reset swing component located at the first swing component stop position to trigger the travel switch to trigger the travel switch. During grounding opening, through the second self-reset swing component located atthe second swing component stop position, the signal pole is pressed to trigger the travel switch. Whether the main shaft linkage component is in an isolation opening position or a grounding openingposition, the same travel switch can be triggered so that an opening signal is emitted, which reduces the number of magnetic blowout switches and simplifies the logic relationship of a circuit. By using an existing three-station isolation switch, installation and debugging are complex and assembling efficiency is low. In the invention, the above problems are solved.

The invention discloses a CAN-bus industrial production line monitoring system for yam flour. The system comprises a CAN bus communication circuit, a main control module, and a plurality of field apparatus nodes. The CAN bus communication circuit includes at least one CAN controller and a CAN transceiver and is capable of completing receiving, sending, and message filtering functions; the main control module connected with the CAN bus communication circuit is capable of monitoring a working state of a system and controlling the system operation effectively; and the multiple field apparatus nodes connected with the CAN controller are capable of completing corresponding data processing independently and realizing communication with the CAN bus communication circuit. In addition, the invention also provides a CAN-bus industrial production line fuzzy control method for yam flour. A water temperature signal, a weight signal, and a turbidity signal are inputted into a fuzzy controller to carry out calculation so as to obtain cleaning time of a cleaning machine, thereby realizing ultra-precision cleaning.

The invention belongs to the field of aircraft complex system fault diagnosis design, and particularly relates to a method for achieving LRU-level rapid fault positioning of an aircraft system. The aircraft system fault diagnosis method based on the model is provided and used for rapidly achieving LRU-level fault positioning after an outfield aircraft system breaks down, so the replacement of a fault unit is rapidly completed, and finally the integrity rate and the attendance rate of an aircraft are increased.

The invention discloses a network request sending method of a dependency relationship, a terminal device and a storage medium. The method is suitable for the field of application development. The method provided by the invention comprises the following steps: when a user initiates a network request, storing a network request object with a dependency relationship into a predefined array; defining callback of the network request object, and setting to control initiation of a next network request according to a return result of the current network request object when the current network request is successful in the callback; and acquiring a first network request object in the array to initiate a network request. According to the invention, the logic relationship between different initiated network requests can be simplified, the code redundancy is reduced, and the later maintenance is facilitated.

The invention discloses an asphalt pavement maintenance road section dynamic division method considering spatial continuity. The method comprises the following steps: changing a fixed value of a pavement condition evaluation subitem index grade division critical value into a fuzzy intersection interval range; and on the basis, the road sections which are continuous in space and similar in disease severity are dynamically merged and divided, so that the problem that the road surface condition evaluation unit is too long to cover the local road section road surface condition is poor as the existing fixed-length evaluation unit cannot fully utilize automatic detection data is solved. And discrete distribution of same-zone maintenance road sections is not beneficial to special maintenance construction organization. By applying the method, the use condition of the highway pavement can be evaluated more accurately, a special maintenance scheme can be proposed in a targeted manner, construction organization is facilitated, and the use performance of the pavement is maintained.

The invention discloses a multi-computing model management method oriented to complex scenarios, relates to the technical field of model management, and is used for solving the problems of poor generality, low model computing throughput rate and wasting computing resources in the multi-computing model management method in the prior art, The present invention includes creating a process calculation graph, which is used to show the topological relationship between each process node, the flow direction of data and messages in the model calculation process; data reception, by the communication process in the process calculation graph Receive external data, and process the data and pass it to the model process; for model calculation, the model process uses the received data to calculate the result and continues to pass it to the lower node until it is sent back to the communication process; The result is sent to an external system. In the present invention, through the above technical solutions, the throughput rate of model calculation can be improved, the allocation and management of computing resources can be completed, and the computing resources can be greatly saved.

The invention relates to a new three dimensional data structure and two-body data structure. A common surface is used for replacing two surfaces connected by two body units to from a two-body coplanar structure, the common surface has the property of the two body units. The two-body data structure provided by the invention is an improvement of B-Rep data structure. The key improvement is to use the surface to take the place of the two surfaces between the two neighboring body units, thus saving storage space, accelerating processing speed and lowering the requirement of the hardware. The advantages are particularly obvious to complex bodies, consisting of a large amount of small bodies, such as complex geologic body, etc. The two-body data structure provided by the invention has extensive usage and can be used in all the fields with the needs of building three dimensional models.

A kind of automatic office meeting demonstration system based on CAN bus provided by the present invention comprises: CAN bus communication circuit, comprises at least one CAN controller and CAN transceiver, has receiving, sending function and can finish message filtering; Main control module , several controller nodes, which are connected to the CAN controller, and each node can independently complete the corresponding data processing and realize the communication function with the CAN bus communication circuit; a plurality of demonstration devices, which are connected to the controller node, are designed by the present invention Developed an automated office conference demonstration system based on CAN bus, which can directly start the controller node to control the demonstration device, and can complete text communication, graphic conference, text transmission and voice communication between employees, and is based on CAN bus The distributed architecture can add and delete node devices at any time, the logical relationship is simple, and the failure rate is reduced. The present invention also provides a CAN bus-based automated office conference demonstration control method.

The invention aims to provide a method and a device for automatically controlling switch unit in an electrical power system. The method comprises the following steps: confirming the target connected state corresponding to the electrical power system according to the current running status of each input power supply of the electrical power system, if the current close state of each switch unit in the electrical power system disagrees with the target close state of the switch unit corresponding to the target connected state, adjusting the corresponding switch unit in the electrical power system according to the target close state.

The present invention provides a half-duplex serial communication bus peripheral equipment interface, including physical layer protocol implementation module, high layer protocol implementation module and interface module; the described interface module is connected with two data wires in SPI bus, namely main equipment input / slave equipment output data wire, and main equipment output / slave equipment input data wire, and also connected with reading data signal wire and writing data signal wire so as to form reading / writing data channel of said interface. Said invention also includes SPI data wire multiplex module.