48results about How to "Eliminate contradictions" patented technology

The invention discloses a high-precision vehicle-mounted road grade detection device and method, which are applicable to the field of a car navigation system and smart car electronics. The device is composed of a mastering node and detection nodes, which are hooked on a vehicle-mounted CAN (controller area network) bus. Each detection node comprises a triaxial acceleration sensor, a microcontroller, a power supply and a CAN communication module. The detection method of the device comprises the following steps that: a dip angle of each detection node relative to a reference plane, namely a surface water plane, is calculated by the output value of the corresponding triaxial acceleration sensor and transmitted to the mastering node by the CAN bus; the mastering node acquires detection node data through polling and performs fusion processes including careless error elimination, least squares fit and Kalman filtering on the acquired data to obtain an optimal estimate value of the grade of a road on which a vehicle runs. According to the invention, the triaxial digital acceleration sensor is used to calculate the dip angle, and the fusion processes are performed on the data of the multiple sensors, so that the precision of the vehicle-mounted road grade detection can be improved to 0.5 degree.

The invention discloses an image fusion method based on a mixed model, which comprises the following steps: firstly transforming a color image from RGB space to IHS space through IHS transformation, and then forming two parts of high frequency and low frequency through NSCT theory. Then, the absolute value selection method and the second kind of Chebyshev polynomials are used to fuse the high-frequency part and the low-frequency part respectively. Finally, the inverse transformation and intensity inverse transformation are used to obtain the fusion result, and the final RGB fusion image is obtained through IHS inverse transformation. Compared with other existing fusion methods, the method of the invention has the advantages of abundant information and high definition.

The invention relates to a method for controlling single-rotor plant protection unmanned plane obstacle avoidance flight. According to the method, P1, firstly, the relative distance between an unmanned plane and an obstacle is determined, and the relative distance is divided into three parts in three scopes of being smaller than N1m, between N1m and N2m and between N2m and N3m; P2, secondly, afterdistance division, dangerous grade division is carried out according to the relative speed between the unmanned plane and the barrier; P3, a height value between the unmanned plane and the ground isdetermined, and grade division of the height value H is carried out; P4, for the dangerous grade, step P3 operation is needed to carry out; for the alarm grade, step P3 operation after emergent speedreduction is needed to carry out; for the prompting grade and the irrelevant grade, third-step determination is not needed, and the process returns for re-detection. The method is advantaged in that after-disaster rescue on-site complex environment sensing of the after-disaster rescue rotor unmanned plane can be better realized, the more accurate obstacle data information is acquired, and more accurate obstacle avoidance decision and obstacle avoidance control can be carried out.

The invention discloses a long/short-distance auto-shunting method of taxis at a transport hub port station and a system thereof. The correlated method comprises the following steps: when a taxi returns to an entrance of a taxi queuing system at a transport hub port station, a license number of the taxi is obtained, and whether the taxi satisfies short-distance travel conditions is judged according to GPS trajectory information and travel time of the taxi during a last travel; if the taxi satisfies short-distance travel conditions, the taxi undergoes short-distance shunting, a guidance display is used to prompt that the taxi enters a short-distance taxi queuing area, and a corresponding gateway handrail is opened; and if the taxi doesn't satisfy short-distance travel conditions, the taxi undergoes long-distance shunting, the guidance display is used to prompt that the taxi enters a long-distance taxi queuing area, and a corresponding gateway handrail is opened. According to the method and the system disclosed in the invention, manual participation degree can be reduced, judgment accuracy of long/short-distance travel is raised, disputes are minimized and then avoided, and passenger evacuation efficiency and work efficiency at a transport hub port station are enhanced.

The invention discloses an automatic charging system for a fully-automatic patrol cleaning robot. A guide rail is arranged at a charging power supply; guide wheels and an AC charging seat are arranged on the guide rail; the robot is connected with the guide rail via the guide wheels; a charging pole piece and the guide wheels are arranged at the bottom of the robot; a contact point of the AC charging seat is connected with a contact point on the charging pole piece; and a battery power display screen is arranged on the AC charging seat. The automatic charging system of the invention adopts the guide rail to guide the fully-automatic patrol cleaning robot to move, thereby ensuring the precision of a docking position and a gesture of the fully-automatic patrol cleaning robot; the AC 220V is adopted for power supply, the charging seat is arranged on the guide rail, an external DC rectifying device is not needed, and the system structure is simple; and the charging seat and the charging pole piece are docked by adopting a simple pressing mode, and the reliability is high.

A double layer bedroom which is suitable to be applied in vehicles such as carriages of railway passenger cars, passenger ships and hotels comprises an upper sub bedroom and a lower bedroom which are combined mutually, and the floors 5-02, 5-01 in the upper sub bedroom and the lower sub bedroom are respectively higher than a corridor floor 13, and are connected with the corridor floor 13 conveniently by means of an auxiliary foot hold 15. A channel type washroom with a stool 32 and a finger bowl 33 is formed between an inner chamber door 8 of each sub bedroom and a door 7. A chair with armrest which can be modulated angles is formed by bed boards 18 which can be inverted and folded of a bed in bedroom and a seat stand 20. A double room can be formed by the communication between the adjacent left sub bedroom and right sub bedroom by means of a lateral wall door 9. A single passenger compartment which comprises 36 chairs, beds, washroom and video web devices and can communicated with an adjacent passenger compartment can be arranged in a standard 25-tye railway passenger car, thereby providing a comfortable private space with complete functions for passengers in small space.

The invention discloses a generalized data fusion method. The method includes: constructing a generalized fusion solving problem model; solving a status calculating equation to obtain a status calculated value; establishing a relative status quantity recurrent equation to obtain an recursive estimated value (as shown in the description); combining a direct solution status value and a status estimated value (as shown in the description) of t n epoch to obtain a status optimal solution value (as shown in the description); and repeatedly using iterative solution to obtain a set of optimal solution. According to the method, a predictive estimated value obtained by recurrence of low order state quantity is directly fused to a high order state solution value, when the measurement accuracy of low order state quantity is higher, through successive mutual calibration, the data is synthesized, the accuracy of high order state quantity synthesis value is obviously improved, and the more accurate expression or estimation of target state quantity is obtained. The invention can be applied to data processing of a sensor, can synthesize multi-band information of a single sensor or information provided by different type sensors, so that possible contradictions among multiple sensors can be eliminated, and the use efficiency of data is improved.

The invention discloses a combined set-shaped steel formwork. The combined set-shaped steel formwork comprises a formwork assembly, connecting assemblies, a supporting assembly and fasteners, wherein the formwork assembly is used for forming a closed surface required for the construction of a concrete structure and ensuring a plate piece for forming of a building structure during concrete pouring; the formwork assembly comprises a plurality of single formwork bodies, and the single formwork bodies comprise single standard plates and single internal corner pieces; the single standard plates are provided with standard plate bevel angles, and the single internal corner pieces are provided with internal corner piece bevel angles; the connecting assemblies are used for connecting the single formwork bodies into a connector of a model; the supporting assembly is a stabilizer used for supporting the formwork assembly during the construction of the concrete structure; and the fasteners are members used for shaping the structure, width and size modeled by the formwork assembly. The invention further discloses a method for modeling using the combined set-shaped steel formwork. The combined set-shaped steel formwork and the modeling method have the advantages of light weight, high turnover usage rate, recyclability, high work efficiency, flexible assembly, high versatility, high machining precision, accurate forming size, uniform corner angles, flat and smooth surface and wide application range.

The invention discloses a solar-powered wheeled mobile robot control system which comprises a microprocessor, a solar power supply module, a navigation positioning module, a motor control module, an autonomous intelligent cruise control module and a liquid crystal display module. The solar power supply module is arranged to convert solar energy into electrical energy to power a wheeled mobile robot, which has the advantages of high energy use efficiency and low power supply cost. The autonomous intelligent cruise control module composed of an infrared sensor and an ultrasonic sensor can automatically identify and avoid obstacles. Two sensors are combined to eliminate redundancy and contradiction of the sensors. The reliability and the measurement accuracy of the system are improved. The navigation positioning module which carries out navigation by combining GPS and an electronic map is arranged to carry out accurate positioning and provide a right navigation route by combined with the electronic map. The system has the advantages of automatic control, simple structure, easy control, low energy consumption, high reliability and high practicability.

The invention relates to a phase-locked loop based on preset frequency and dynamic loop bandwidth, and belongs to the technical field of phase-locked loops under radio frequency circuits. The circuitcomprises a phase frequency detector, a charge pump, an LPF, a differential-to-single operational amplifier, a multi-mode frequency divider, a frequency locking ring, a third-order noise shaping module and a digital control module. The phase frequency detector and the charge pump are of a fully differential structure. The LPF adopts a third-order filter capacitor; the multi-mode frequency divideris formed by cascading a plurality of 2/3 frequency dividers, wherein the phase frequency detector is connected with the charge pump, the charge pump is connected with the voltage-controlled oscillator, the LPF is connected between the charge pump and the annular voltage-controlled oscillator, the annular voltage-controlled oscillator is connected with the multi-mode frequency divider, and the multi-mode frequency divider is simultaneously connected with the third-order noise shaping circuit and the phase frequency detector. The phase-locked loop can realize output frequency locking in an extremely short time, is suitable for occasions requiring rapid locking during frequent power-on and power-off, and ensures relatively high resolution; the third-order noise shaping circuit moves noise toa high frequency band, and noise suppression is realized through LPF.

The invention relates to a multi-source remote-sensing image data fusion method, and belongs to the technical field of remote-sensing data processing. In pixel based image fusion, basic geographical coding is carried out by geometric registering among grid data; characteristic based image fusion is implemented; in decision layer based image fusion, valuable complex data is determined, identified and classified via discriminating criteria and decision rules, the valuable information is fused, and an integrated decision result is obtained; and the data undergoes the three types of image fusion, and then three results are compared, fused and analyzed to obtain a final result. Thus, different characteristics of different types of data are integrated and utilized to the largest extent, redundancy and contradiction among different sensors are eliminated, and image information is more transparent.

The invention discloses a method for preparing an a-shaft orientated high-temperature superconducting film. The method comprises the following steps: (a) preparing Ba-Cu-O powder; (b) adding Ba-Cu-O precursor powder into a Y2O3 crucible in a crystal growing furnace, heating to a first temperature, and performing heat preservation to obtain a Y-Ba-Cu-O solution; (c) cooling the solution to a second temperature at a first cooling rate; (d) heating the solution from the second temperature to a third temperature at a first temperature rise rate; (e) adopting an NGO mono-crystal substrate fixedly arranged on a connecting rod as a seed crystal material, and inserting the NGO mono-crystal substrate into a solution obtained in the step (d) to grow a pure a-shaft orientated YBCO liquid phase epitaxial film. According to the method disclosed by the invention, the NGO mono-crystal substrate is adopted as a seed crystal, and the epitaxial growth of an a-shaft oriented YBCO superconducting thick film can be achieved by controlling the first cooling rate, the second temperature, the first temperature rise rate and the third temperature.

The invention discloses vehicle rushing preventing equipment of a check point. The rushing preventing equipment comprises a metal structure main body, a transmission gear, a rotating device, a self-locking braking device, automatic/manual and wireless control equipment, and an automatic acousto-optic caution device, wherein the metal structure main body is of a hollow structure; the transmission gear is mounted on one sidewall of the metal structure main body; the rotating device is connected with the transmission gear and fixedly connected with the two sidewalls of the metal structure main body; the self-locking braking device is arranged in the metal structure main body, and one end of the self-locking braking device penetrates through the metal structure main body and is connected with the transmission device; and the automatic/manual and wireless control equipment is connected with the self-locking braking device and the automatic acousto-optic caution device. The vehicle rushing preventing equipment of the check point is easy to mount and capable of quickly and effectively performing forced safe traffic control on vehicles violating laws and rules by intelligent control, so that potential safety accident hazards are eliminated, the social harmony and stability coefficient is improved, and harm of people, damage of vehicles and loss of properties are greatly reduced.

An integrated circuit device includes: a host interface that receives a standard specification command and an internal specification command; a register unit; a logic circuit unit; and a first oscillation circuit, wherein the first oscillation circuit is controlled on the basis of a first command as the internal specification command and shifts to a state in which power supply voltage is supplied but oscillation is stopped, and the first oscillation circuit is controlled through the register unit on the basis of a second command as the internal specification command and returns to an oscillation state from the state in which the oscillation is stopped.

A switched reluctance motor modeling method, which is applicable to switched reluctance motors of various phase numbers. A variable resistor (RMp) formed by four operational amplifiers (U1, U2, U3, U4), three current conveyors (U5, U6, U7), a digital potentiometer and a digital controller, eight resistors (R1, R2, R3, R4, R5, Ro, Rx, Rs) and a capacitor (C) are adopted to form a switched reluctance motor phase winding equivalent model. The modeling method is simple, can realize system mathematic direct simulation for switched reluctance motors, and is capable of simulating and controlling in real time.

The invention discloses an intelligent vehicle network shared parking system carrying solar energy storage. The system comprises a solar energy system, an energy storage system, an Internet of Things positioning detection device, a communication system, a shared parking management platform, a low-carbon integral excitation system and an event publishing module. Collected parking space and vehicle information is uploaded to the shared parking management platform in real time through a wireless network, the utilization rate of time and space of the parking space can be improved to the maximum extent, the problem of difficult parking in cities is solved, and the system can be accessed to government major and emergency information release, local display screen display or APP platform push in the system. And under the conditions of major mountain torrents and flood disasters and the like, emergency release can be carried out, emergency parking can be realized at high positions such as elevated positions, and meanwhile, popularization can be carried out through low-carbon point rewards.

The invention discloses a cast-weld combined type cable saddle forming structure which comprises a saddle head of a casting structure and a saddle of a weldment structure. The saddle head is assembledon the saddle through a polishing abutting fit structure. The saddle head of the casting structure and the saddle of the weldment structure are assembled together through the polishing abutting fit structure, complex, high-difficulty and high-residual-stress penetration welding treatment does not need to be adopted, assembling and forming are convenient, bearing strength of the joint between thesaddle head and the saddle can be greatly improved, and then overall structural stability of the cable saddle is improved.