30results about How to "Module division of labor is clear" patented technology

The invention relates to a intelligent method for monitoring vehicle flow, wherein the method is based on a magnetoresistive sensor and a ZigBee network. The method is used to solve some problems in urban traffic. According to the invention, vehicle flow in traffic is monitored. And then after data is processed, the data is transmitted to a traffic control department and a communication service provider; on one hand, the obtain data information is further utilized by the traffic control department to lead and control the traffic; on the other hand, the communication service provider utilizes a self-communication network to give guidance to information-demanding users including mobile communication users for their trips. Therefore, people can understand the situation of the amount of the traffic without passing a section of a road; consequently, support is provided for selection of trip routes of the people taking trips, so that it is convenient for the people to go out and an operation of a city becomes more efficient. With utilization of the mobile communication network of the communication service provider and mobile terminal equipment like a mobile phone and a PDA and the like, traffic indication and guidance are provided for people that go out and people that are on the way, so that a traffic jam degree can be reduced, traffic accidents can be avoided, and success rates of handling special events like emergency rescue and disaster rescue can be improved.

The invention discloses a dynamic and static combined loading rock test machine and test method used for multiphase coupling. The machine comprises a visual confining pressure loading chamber module, air pressure control modules, a dynamic loading module and constant volume modules; and the loading chamber of the visual confining pressure loading chamber module is a steel cylinder structure with a square outside and a circular inside, three surfaces of the loading chamber has windows, high borosilicate glass is embedded in every window to realize the visualization of the test process, an opening in one surface of the loading chamber is provided with a rear door which is convenient to replace and take a test piece, and various monitoring devices are arranged in the loading chamber and are led out through sensor lead wires of a baseboard to realize real-time monitoring of all physical-mechanical parameters of the test piece in the test process. The machine has the advantages of small size, simple structure, convenience in dismounting, and realization of accurate, quantitative and visual monitoring of the adsorption-desorption characteristic of a coal rock standard test piece in different load forms and coupling form and the permeability and the damage dilatancy process of gas-containing coal body in different loading stages.

The invention discloses a mobile phone two-dimensional code safe use method based on information hiding. With the development of information technology and Internet technology, people pay more attention to the convenient and environmental-friendly two-dimensional code technology, and the use of the two-dimensional code is wider and wider. However, a traditional mobile phone two-dimensional code is lack of a necessary security mechanism, people can use a two-dimensional code as long as the people have the two-dimensional code, and the security of the private information of the user is invaded. The method is based on the information hiding technology, the cryptography theory and bar code technology are utilized, through a method of embedding user secret information in encoding and carrying out extraction, operation and comparison in decoding, the safe use problem of the mobile phone two-dimensional code is solved, the leakage and stealing of the information are prevented, and the integrity and confidentiality of the information are ensured. The method is simple and practical, with the gradual popularization of the Internet technology at the present age, and method plays an important role for the security of the information.

Plenty of problems have emerged during tour as the number of tourists increasingly rises, however, a good scheme for addressing these problems has not been found so far. According to the invention, an information interaction method based on information physical system and radio frequency technology is designed by mainly adopting RFID (Radio Frequency Identification) technique on the basis of CPS technology, the use information of resources, such as sight spots, hotels, restaurants and the like, is collected and converged through an information control and scheduling center in tourist attraction, then reasonable shunt information and reasonable tourist lines are fed back to tourists and guides after artificial planning, and likewise, when tourists lose touch with others, the method can aid in searching for the lost tourists and enable the guide to assemble own tourists or remind own tourists of emergency, therefore, the tourism service quality is dramatically raised, and the scheme is also advantageous in self introduction of sight spots.

The invention provides a method and system for photoelectric ranging meteorological correction. An unmanned aerial vehicle and a corresponding ground control module are arranged, and wireless communication of a ground control system and the unmanned aerial vehicle is established; a communication module, a GNSS module, a temperature sensor, a barometric sensor, a humidity sensor and a storage module are arranged on the unmanned aerial vehicle in a carrying mode; the unmanned aerial vehicle flies back and forth along a designed air route, a photoelectric ranging instrument performs repeated ranging on a target point many times in the period, and meteorological elements on a ranging signal transmission route are measured while ranging is performed; the average value of temperature, barometric pressure, humidity and distance is solved, and meteorological correction is achieved. The system is simple in structure, and labor division of modules is clear, steps of the method are clear, and the scheme can be achieved easily. By means of the method and system, the meteorological elements on the ranging signal transmission route can be accurately measured, meteorological element representativeness in the prior art can be greatly reduced, and therefore photoelectric ranging precision is improved, and a reliable guarantee is provided for high-precision measurement.

The invention relates to a PWM (pulse width modulation) based monostable vacuum circuit breaker permanent magnetic operating mechanism control method and a device for implementing the same. Adjustments are performed through three closed loops including a contact position loop, a contact speed loop and a mechanism coil current loop. Exciting current is adjusted by the contact position loop according to the contact position. A PWM duty cycle is adjusted by the contact speed loop according to feedback signals of the contact position loop. Switch-on-off operations are controlled by the mechanism coil current in real-time according to the exciting current and the PWM duty cycle. A fuzzy PID (proportional integral derivative) controller is adopted in the contact position loop and the contact speed loop. PI (priority interrupt) control is adopted in the mechanism coil current loop. The PWM based monostable vacuum circuit breaker permanent magnetic operating mechanism control method has the advantages that synchronous operation capacity and reliability of the mechanism are improved; the main coil current detection and the auxiliary contact travel detection are cooperated with each other; and a pulse width modulation technology is adopted in operations of a circuit breaker, closed-loop control of contact movement features in the switch-on-off operations of the circuit breaker is realized through changing the coil current, stability of operation time is guaranteed, and accuracy of switch-on-off phases is improved.

The invention discloses an intelligent power distribution and utilization flexible control system. The intelligent power distribution and utilization flexible control system comprises a transformer, a three-phase rectifier, at least one single-phase inverter and at least one three-phase inverter. The three-phase rectifier converts a three-phase alternating current produced by the transformer into a direct current which is output to the inverters, the single-phase inverters convert the direct current into single-phase alternating currents with adjustable frequency and amplitude, and the three-phase inverters convert the direct current into three-phase alternating currents with adjustable frequency and amplitude. According to the intelligent power distribution and utilization flexible control system, the method that the three-phase alternating current is rectified and then inverted is adopted, the problem that a great deal of single-phase electric equipment is directly connected to a power supply grid to cause three-phase unbalance is solved, damage to power transmission and distribution equipment and the electric equipment is reduced, and reliability, economical efficiency and power quality of power supply are improved. Besides, the intelligent power distribution and utilization flexible control system achieves clear work division of modules, is easy to design, build and maintain, operates easily, and achieves convenient system expansion and upgrading.

The invention discloses a method for automated visualized presentation based on data structure identification. The method comprises the following steps: receiving data input, through data structure description rules, generating data structure description information of input data; according to the data structure description information, extracting structure characteristic vector information of the data; identifying the extracted data structure characteristic vector information, hereby obtaining graph configuration matched with a characteristic vector; according to graph configuration information, generating multi-graph layout and obtaining a visual graph. On the other hand, the invention also provides a presentation system for realizing the method, users do not need to select a visual representation of the data according to experience, and the system begins with data structure of an analysis result. Through recognition and matching types of each dimension, contents and other information in the data structure, rational configuration is automatically performed on graphs, layout is automatically planned, and a problem of usability in a conventional analysis result visualized presentation method.

The invention discloses a team exploration auxiliary communication and management method based on a wireless sensor network. A plurality of unpredictable losses of individuals, teams and even the whole society can be occurred caused by the fact that various extreme climates and bad natural environments are inevitable in team exploration. The method is a feasible scheme for exploring and solving communication and management in the team exploration. Based on the WSN (Wireless Sensor Network) technology, the method applies a ZigBee network to realize transmission of voice short messages in the team, and provides high-efficiency and energy-conservation positioning service through analyzing relative position information among general member nodes, enhanced member nodes and team leader nodes and assisting by GPS (Global Positioning System) positioning information which is provided by anchor nodes after the nodes and the information are synthetically processed. Under various extreme environments of existing systems incapable of working effectively, the method can reduce risk, avoids possible accidents, and improves the success rate of processing abnormal accidents.

The invention discloses a multi-degree-of-freedom continuous robot with a flexible target grabbing function, belongs to the technical field of robots, and relates to a multi-degree-of-freedom continuous robot capable of flexibly grabbing small-size objects and curling and winding large-size objects. The multi-degree-of-freedom continuous robot comprises a driving device module, an imitation trunkmodule and a dexterous finger module, and the imitation trunk module is composed of a rotary compression module and a bending compression module; uniform connecting interfaces are reserved at the endsof the modules, and the modules are combined and spliced according to actual requirements; the driving module is arranged on a base of the robot to achieve driving work of all the ropes and control the robot to move; the rotary compression module can simultaneously generate rotation and compression motion, so that the dead angle defect of the bending compression module is overcome; the bending compression module can independently realize compression deformation and bending deformation of the module; and the dexterous finger module achieves the grabbing function through multi-finger cooperation. The robot is simple in structure and flexible to use, and the robot structure has the characteristic of light weight.

The invention discloses a pesticide spraying robot in the field of agricultural robots. The pesticide spraying robot comprises a trolley frame, a control mechanism, an information acquisition mechanism and a pesticide spraying mechanism, wherein the control mechanism, the information acquisition mechanism and the pesticide spraying mechanism are arranged on the trolley frame; the trolley frame comprises an upper trolley frame and a lower trolley frame; the control mechanism is arranged on the lower trolley frame; and the pesticide spraying mechanism is arranged on the upper trolley frame; theinformation acquisition mechanism comprises gray sensors arranged on the front side and the back side of the lower trolley frame, distance sensors arranged on the front sides of the upper trolley frame and the lower trolley frame, and a recognition camera arranged on the front side of the upper trolley frame; and all of the recognition camera, the distance sensors, the gray sensors and the pesticide spraying mechanism are connected with the control mechanism through signals. Pesticides can be autonomously sprayed to vine crops and low plants; field weeds are recognized, and removed; the disaster condition of the crops is recognized; and the pesticide is sprayed according to the condition.

The invention provides a radio-frequency signal calibration method based on virtual channels, comprising a channel modeling module, a channel calibration module, an error correction module and an information management module. First, the channel modeling module is run to establish a virtual channel model for channels ready for calibration, and channel model information is synchronized to the information management module; the channel calibration module is run to calibrate all the channels; a calibration program generating guide is provided for a user according to the channel model information; a calibration program generated by the guide is run to obtain calibration data, and the calibration data is synchronized to the information management module; then, the error correction module is run; and finally, an error correction algorithm interface function is called during running of a test program to obtain a radio-frequency signal compensation value at a specified frequency of a specified channel to compensate channel calibration error in the process of testing. All the modules have clear functions, operation is simple and convenient, channel management and error correction are completely open, and the channel calibration needs of a test system in different stages are met through extension.

The invention provides a selecting system. The selecting system comprises a database module and further comprises a measuring area range determining module, a site investigation module, a data processing module and a correction prompting module which are connected with each other in sequence. A method for selecting a taking-off and landing point for a fixed-wing unmanned aerial vehicle in an urbanarea comprises the steps of setting a height difference L of an unmanned aerial vehicle taking-off and landing point, pre-selecting a taking-off and landing area and selecting the taking-off and landing area in an optimized manner, determining the taking-off and landing point and implementing correction. According to the selecting system, real-time performance and high efficiency are realized, the accuracy is high, and the control degree is good; the optimized selection of the taking-off and landing point in the urban environment is rapidly realized according to a selection principle so thatthe aerial survey accuracy of the fixed-wing unmanned aerial vehicle is greatly improved; as the precondition that the unmanned aerial vehicle flies forwards for 10-20 m more during landing when the height difference of the taking-off and landing point is increased by 1 m every time is taken into consideration, and the correction step of preventing the unmanned aerial vehicle from being biased from a preset landing point is set, the taking-off and landing error is greatly reduced, the safety taking-off and landing of the unmanned aerial vehicle are guaranteed, the aerial survey cost of the unmanned aerial vehicle is greatly reduced, the workload is reduced, and the selecting system is more suitable for being popularized.

The invention relates to a long-term on-orbit danger event analysis method of a manned spacecraft and a danger analysis system. The analysis method comprises the following steps: a, determining dangerevents in an on-orbit process of the manned spacecraft, and analyzing consequence status and severity levels of the danger events; b, carrying out function analysis on the manned spacecraft, and carrying out hierarchical division on functions of the manned spacecraft according to the danger events; c, identifying sources of danger that can lead to danger events; d, analyzing a sequence of dangerevents caused by each danger source, determining severity degrees of the danger events, and analyzing risk of fault consequences of the danger events; and e, for high-risk danger events, using fault tree analysis to fault trees in a prioritized manner for reanalysis. According to the analysis method of the invention, serious dangers which may occur in the on-orbit running process are identified, system resource cost minimization of safety control measures is ensured, and maximum efficiency is realized.

The invention relates to a multifunctional air sterilizer and specifically provides a controller based on the multifunctional air sterilizer. The controller comprises a master control board, a central processor, a power supply, a display board, a functional control module, a signal processing module, a load control module, a load abnormity acquisition module, a sensor circuit acquisition module, an EEPROM memory, a clock module, and an A / D monitoring module, wherein central processor is arranged in the master control board and the power supply, the display board, the functional control module, the signal processing module, the load control module, the load abnormity acquisition module, the sensor circuit acquisition module, the EEPROM memory, the clock module, and the A / D monitoring module are connected with the central processor. The clock module is connected with the central processor through a SPI communication interface. A digital-to-analog conversion module is arranged between the A / D monitoring module and the central processor. Compared with those of a conventional controller of the multifunctional air sterilizer, the modules of the controller have clear functions and are easy to operate. The controller is additionally provided with multiple sterilizing modes capable of running simultaneously or running at different time segments, a multi-time-segment automatic start / stop mode, a power-off memory function and a power-on self-check function.

The invention discloses an order data processing system based on an e-commerce platform, which comprises an order processor and an information acquisition module, a character segmentation module, a character combination module, an information matching module and an information selection module connected with the order processor; the order data processing system comprises an order processor, a character segmentation module, a character combination module, an information matching module and an information selection module. The order processor is used for receiving and processing the data information of each module. The system of the invention has simple structure and clear division of each module, and can process data information in time and quickly, improve the speed of data processing andthe operation efficiency of the e-commerce platform, avoid the loss caused by not processing orders in time, and has good use and popularization value.

The invention discloses a system and method for synchronizing data of main and standby systems in real time. The system comprises a parameter storage configuration unit, a data synchronization unit, a data inspection unit, a system state central control unit and a data distribution service unit. According to the invention, the synchronization of the main system database and the standby system database is realized, the bidirectional synchronization of the data between the systems is realized through the cooperative work of the units, the modules have own function, the flow is clear, a third-party open source or commercial software is not needed, and the system is independent and controllable.

The invention discloses a mobile phone two-dimensional code safe use method based on information hiding. With the development of information technology and Internet technology, people pay more attention to the convenient and environmental-friendly two-dimensional code technology, and the use of the two-dimensional code is wider and wider. However, a traditional mobile phone two-dimensional code is lack of a necessary security mechanism, people can use a two-dimensional code as long as the people have the two-dimensional code, and the security of the private information of the user is invaded. The method is based on the information hiding technology, the cryptography theory and bar code technology are utilized, through a method of embedding user secret information in encoding and carrying out extraction, operation and comparison in decoding, the safe use problem of the mobile phone two-dimensional code is solved, the leakage and stealing of the information are prevented, and the integrity and confidentiality of the information are ensured. The method is simple and practical, with the gradual popularization of the Internet technology at the present age, and method plays an important role for the security of the information.

The invention relates to a long-term on-orbit danger event analysis method of a manned spacecraft and a danger analysis system. The analysis method comprises the following steps: a, determining dangerevents in an on-orbit process of the manned spacecraft, and analyzing consequence status and severity levels of the danger events; b, carrying out function analysis on the manned spacecraft, and carrying out hierarchical division on functions of the manned spacecraft according to the danger events; c, identifying sources of danger that can lead to danger events; d, analyzing a sequence of dangerevents caused by each danger source, determining severity degrees of the danger events, and analyzing risk of fault consequences of the danger events; and e, for high-risk danger events, using fault tree analysis to fault trees in a prioritized manner for reanalysis. According to the analysis method of the invention, serious dangers which may occur in the on-orbit running process are identified, system resource cost minimization of safety control measures is ensured, and maximum efficiency is realized.

The invention relates to a PWM (pulse width modulation) based monostable vacuum circuit breaker permanent magnetic operating mechanism control method and a device for implementing the same. Adjustments are performed through three closed loops including a contact position loop, a contact speed loop and a mechanism coil current loop. Exciting current is adjusted by the contact position loop according to the contact position. A PWM duty cycle is adjusted by the contact speed loop according to feedback signals of the contact position loop. Switch-on-off operations are controlled by the mechanism coil current in real-time according to the exciting current and the PWM duty cycle. A fuzzy PID (proportional integral derivative) controller is adopted in the contact position loop and the contact speed loop. PI (priority interrupt) control is adopted in the mechanism coil current loop. The PWM based monostable vacuum circuit breaker permanent magnetic operating mechanism control method has the advantages that synchronous operation capacity and reliability of the mechanism are improved; the main coil current detection and the auxiliary contact travel detection are cooperated with each other; and a pulse width modulation technology is adopted in operations of a circuit breaker, closed-loop control of contact movement features in the switch-on-off operations of the circuit breaker is realized through changing the coil current, stability of operation time is guaranteed, and accuracy of switch-on-off phases is improved.