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368results about How to "Avoid misleading" patented technology
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Bus arrival judging system and method by utilizing road condition information and running speed
InactiveCN102622877AAvoid misleadingInstruments for road network navigationRoad vehicles traffic controlGeolocationArrival time
The invention relates to a bus arrival judging system and method by utilizing road condition information and running speed. The bus arrival judging system mainly consists of three parts, a bus service center server, a bus-mounted terminal and a bus passenger terminal, wherein bus service center server comprises a bus time management module, a bus line management module, a bus actual situation management module, a bus travelling service module and a user management module, and is configured with a bus service center database; the bus-mounted terminal comprises a GPS (Global Positioning System) module, a bus information management module, an inner bus actual situation collection module, an outer bus actual situation collection module and a data memory of the bus-mounted terminal; and the bus passenger terminal is a movable terminal or a PC (personal Computer) consisting of a mobile phone or a PDA (Personal Digital Assistant) or a fixed terminal arranged in a bus station. According to the bus arrival judging system and method by utilizing the road condition information and the running speed, disclosed by the invention, a passenger automatically judges bus arrival time by utilizing bus road jam information, vehicle driving instant speed information and map geographic position information.
Owner:杭州妙影微电子有限公司
Road traffic condition foreknowing system and method based on internet of things
InactiveCN102663894AAvoid misleadingArrangements for variable traffic instructionsMobile vehicleData memory
The invention discloses a road traffic condition foreknowing system and a road traffic condition foreknowing method based on internet of things. The foreknowing system mainly comprises a data service center server and vehicle-mounted terminal software, wherein the data service center server mainly comprises a user management module, a road traffic condition management module, a strategy publishing management module and a data service center database; the data service center database is respectively connected with the user management module, the road traffic condition management module and the strategy publishing management module; the vehicle-mounted terminal software comprises a global positioning system (GPS) module, a vehicle information management module, a road traffic condition acquisition module, a front road traffic condition displaying module and a vehicle-mounted terminal data memory; and the vehicle-mounted terminal data memory is respectively connected with the GPS module, the vehicle information management module, the road traffic condition acquisition module and the front road traffic condition displaying module. By adoption of the foreknowing system and foreknowing method, real-time traffic condition information acquired by vehicles running on the front road is directly used, and road traffic congestion status is not judged, so that a phenomenon that traveling people driving motor-driven vehicles are misled is avoided.
Owner:杭州妙影微电子有限公司
Optimization operational method based on energy consumption analysis for power plant and system thereof
InactiveCN101893877AAchieve high accuracyAccurate analysisTotal factory controlProgramme total factory controlData displayPower station
The invention discloses an optimization operation method based on energy consumption analysis for power plant and a system thereof. The method includes the following steps: a data acquisition subsystem acquires real-time operational data and carries out pre-processing on the specific real-time data; a data processing subsystem analyzes and calculates the real-time data, so as to obtain the real-time energy consumption index under the current working condition, the real-time energy consumption index under the current working condition is compared with the energy consumption index under the corresponding working condition stored in an optimal working condition database, comparison result is output to a data display subsystem, and meanwhile if the real-time energy consumption index obtained by calculation is superior to the optimal energy consumption index under the corresponding working condition, the current real-time working condition is stored to be corresponding optimal working condition; and the data display subsystem displays the real-time energy consumption index under the current working condition and the comparison result of optimal energy consumption indexes under the corresponding working conditions. The method of the invention can more accurately analyze various energy consumption differences of power plant and the reason of exceeding of energy consumption difference, and a reliable optimization scheme is provided.
Owner:国家能源集团江西电力有限公司九江发电厂
Parking space service and management system and method based on parking space state information
ActiveCN108010373AEasy to manageImprove customer experienceAutonomous decision making processTicket-issuing apparatusDriver/operatorParking space
Owner:ROUTER TECH HANGZHOU INC
Driving behavior analyzing system
InactiveCN107972671AReal-time understanding of driving statusImprove driving behaviorData processing managementControl devicesEngineeringData recording
The invention discloses a driving behavior analyzing system. The driving behavior analyzing system comprises a driving information collecting module, a vehicle surrounding environment collecting module, a driver fatigue extent measuring module, a data recording and analyzing module, a judgment module, an alarming module and an evaluating module. The driving information collecting module, the vehicle surrounding environment collecting module and the driver fatigue extent measuring module are all connected with the data recording and analyzing module, the other end of the data recording and analyzing module is connected with the judgment module, and the other end of the judgment module is connected with the alarming module and the evaluating module. According to the driving behavior analyzing system, driving data are analyzed to measure the driving behavior of a driver, the driving behavior of the driver is evaluated accordingly, the driving behavior of the driver can be analyzed on thebasis of the driving environment, correct guiding is made for the driver, misguiding is avoided, meanwhile the driving behavior of the driver is improved, and the oil consumption of a vehicle is reduced.
Owner:THE UNIV OF NOTTINGHAM NINGBO CHINA
Traffic and travel information service system and method based on an electronic map
ActiveCN109766405AReal-time navigation servicePlanning and Safe Navigation ServicesDetection of traffic movementGeographical information databasesService systemElectronic map
The invention provides a traffic and travel information service system based on an electronic map. The traffic and travel information service system comprises a traffic system center, a roadside unit,a management terminal and a user terminal, The roadside unit comprises a management roadside unit and an identification roadside unit; The traffic system center is in signal connection with the third-party platform, the management terminal and the user terminal. The user terminal is used for uploading the traffic event monitoring information and the user terminal request to the traffic system center; The management terminal is used for uploading traffic event monitoring information, a management terminal request, a traffic road condition path planning request and a mapping request to the traffic system center; The management roadside unit is used for uploading traffic event monitoring information to the traffic system center, receiving information sent by the management terminal and the user terminal and sending the information to the management terminal and the user terminal; The invention also provides a traffic and travel information service method based on the electronic map, which is carried out by utilizing the system and can ensure smooth and safe traffic and travel and improve the user experience.
Owner:ROUTER TECH HANGZHOU INC
Logistics distribution system and distribution method thereof
InactiveCN103632243AImprove securityPrevent writing downIndividual entry/exit registersLogisticsLogistics managementPassword
The invention provides a logistics distribution system and a distribution method thereof. The distribution system comprises a packing case which is provided with a dynamic electronic password lock, a remote server which records information of the packing case, and a user communication terminal which is connected with the remote server via a network. The distribution method comprises the following steps: a distribution object is put into the packing case which is then locked; then the information of the packing case is bound with a user communication terminal number at the remote server terminal; and finally after the object is delivered to a destination, the user communication terminal is connected with the remote server, and the remote server sends a dynamic password, which is bound with the user communication terminal number and effective within a current certain period of time of the dynamic electronic password lock on the packing case, to the user communication terminal so that a user can open the packing case and extract the object. Safety of the logistics distribution object can be effectively enhanced by the logistics distribution system and the distribution method thereof.
Owner:上海达距物联网科技发展有限公司
Remaining driving mileage processing method of automobile combination meter
InactiveCN101660923AGuaranteed Accuracy and ReliabilityAvoid display errorsMachines/enginesLevel indicatorsDriver/operatorFuel tank
The invention discloses a remaining driving mileage processing method of an automobile combination meter, belonging to the technical field of automotive electronics. During the normal driving processof the automobile, the remaining oil mass is obtained according to the difference between the original oil mass and the oil consumption of an oil box stored in a storer of the combination meter, and then the remaining oil mass is divided by the average oil consumption, thus obtaining the remaining driving mileage. The engine status is judged according to engine speed signals, when an engine is judged to be in starting process, whether a driver needs to oil the automobile is judged further according to the signal change of a liquid level sensor, and the original oil mass stored in the storer isrenewed after the automobile is judged to need to be oiled. The method avoids the display error of the remaining driving mileage resulted from the deviation of the signal of the liquid level sensor due to road condition change during the running process.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Secondary side control circuit, secondary side control method, and fly-back converter adopting the same
ActiveCN105978341AAvoid misleadingEfficient power electronics conversionAc-dc conversionConductor CoilControl circuit
The invention discloses a secondary side control circuit, a secondary side control method, and a fly-back converter adopting the same. By using a characteristic of a secondary side winding changing slowly during a primary side resonance period, a slope parameter representing a change of a secondary side detection voltage along a preset direction is compared with a slope parameter threshold, and only when the slope of the secondary side detection voltage is large (when the change is fast, or the changing amplitude in unit time is large), the secondary side detection voltage is allowed to be lower than a conducting threshold, and a secondary side rectification switch is triggered to be switched on. The reason of the voltage drop of the secondary side winding is switching off of a primary side main power switch or parasitic parameters is determined, and the error switching-on of the secondary side rectification switch is prevented.
Owner:西安矽力杰半导体技术有限公司
Vehicle positioning and optical band guidance method applied to parking guidance system
The invention provides a vehicle positioning and optical band guidance method applied to a parking guidance system. The method generates an optimal path to a designated parking stall by using a shortest path algorithm and controls the switches of optical bands on the way according to vehicle real-time position information fed back by a sensor so that a driver in a parking lot may quickly reach the nearest parking position. The method comprises the following steps of: establishing an abstract model of the parking lot; acquiring the vehicle real-time position information according to the sensor; using the shortest path algorithm to generate an optimal path from the vehicle's current position to a designated position; controlling the switches of the optical bands on the way according to the vehicle position information and the optimal path information, and guiding the vehicle to the designated parking position according to the optical bands. The vehicle positioning and optical band guidance method may quickly guide the vehicle to the designated parking stall according to the optical bands, solves a problem that the driver blindly finds the parking stall in the parking lot, greatly improves parking efficiency, alleviates the traffic jam in the parking lot and reduces manual management cost.
Owner:NANJING UNIV OF POSTS & TELECOMM
Separation driving circuit and control method with discharging channel
InactiveCN101267156AAvoid misleadingGuaranteed to workPower conversion systemsCapacitanceTransformer
The present invention provides an isolation driving circuit having a discharge path and its control method. The isolation driving circuit includes a control or driving unit, a driving transformer unit and a secondary line bootstrap circuit, the secondary line bootstrap circuit includes a bootstrap capacitor; the isolation driving circuit also includes a discharge circuit discharging for the bootstrap capacitor, the discharge circuit is parallel with the bootstrap diode, the discharge circuit further includes a switch, processing by passing the auxiliary winding. The control method of the isolation driving circuit includes: when the driving pulse of the isolation driving circuit is a high level, the bootstrap capacitor discharge circuit is turned off, the isolation driving circuit outputs the high level; when the driving pulse of the isolation driving circuit is a lower level, the bootstrap capacitor discharge circuit is turned on, the lower level of the isolation driving circuit output is zero. The invention ensures the normal working of the driving circuit when the duty cycle is large change. The auxiliary winding coil and the auxiliary switch can provide quick discharge circuit to the secondary line bootstrap capacitor, avoiding the miss guide of the power switch tube which is switched.
Owner:SHENZHEN AEROSPACE NEW POWER TECH
Driving method of gallium nitride transistor, driving circuit thereof, and fly-back converter using the circuit
InactiveCN104617752AReduce lossGood dv/dt suppression abilityEfficient power electronics conversionDc-dc conversionSoft switchingEngineering
The invention discloses a driving method of a gallium nitride transistor and belongs to the field of DC-DC (direct current-direct current) power conversion. On one hand, a gallium nitride driving circuit is provided with a negative voltage driver based on a traditional gallium nitride driving chip, so that the gallium nitride transistor is accelerated in shutdown and the wrong conduction condition caused due to overlarge dv / dt on two electrodes of a drain source during shutdown is restrained. On the other hand, the driving method can solve the problem that after the gallium nitride transistor is disconnected, the reverse conduction loss is occurred when negative voltage is added into drive voltage; one intermediate level VM less than the starting voltage Vth is added in the reverse conduction time period so that the reverse conduction voltage is reduced from Vth + Vg _off to Vth - VM, and the reverse conduction loss is greatly reduced. The driving method can be applied to all occasions where the gallium nitride transistor is required for driving and especially used for driving the control tube of a resonant converter and the control tube of a PWM (Pulse-Width Modulation) soft switching converter.
Owner:MORNSUN GUANGZHOU SCI & TECH +1
Insulation driving circuit of power switching tube
InactiveCN102307003AAvoid misleadingAvoid Oscillating PhenomenaPower conversion systemsMOSFETCapacitance
The invention is suitable to the field of electrical switches and switch power-supplies, and provides an insulation driving circuit of a power switch tube. According to the invention, on the basis of the insulation driving circuit of the traditional power switch tube, the reliability and stability of the insulation driving circuit in conduction and disconnection are improved through increasing the gate filter capacitance of the power switch tube and correspondingly accelerating disconnection of a discharge path; the acceleration for the disconnection of the discharge path works when the gate filter capacitance is greater, the gate filter capacitance is subjected to rapid discharge when in disconnection, and the switch oscillation phenomenon of MOSFET (metal-oxide-semiconductor field effect transistor) caused by slow decrease of a gate voltage is avoided; when the gate filter capacitance is greater, the gate voltage is very stable, which is very good for the MOSFET; and when an input signal is at a close state, through accelerating the disconnection of the discharge path, a gate of the MOSEFT is discharged all along, thus the gate voltage cannot be accumulated, and the error conduction of the power switch tube which is required to be turned off is avoided.
Owner:SHENZHEN ACAD OF AEROSPACE TECH
SiC MOSFET driving circuit with crosstalk suppression capability
InactiveCN106385165AEnsure safe workAvoid misleadingEfficient power electronics conversionPower conversion systemsMOSFETPush pull
The invention discloses a SiC MOSFET driving circuit with crosstalk suppression capability. The SiC MOSFET driving circuit comprises a switch tube S1 and a switch tube S2 which are in push-pull connection. A driving resistance is connected between the switch tube S1 and the switch tube S2. The output end of the driving resistor is connected with a first-stage crosstalk suppression circuit and a second-stage crosstalk suppression circuit which are connected in parallel. The first-stage crosstalk suppression circuit comprises a capacitor C1 and a diode D2 which are connected in parallel. The second-stage crosstalk suppression circuit comprises a BJT tube T, a resistor R3 which is connected between the base electrode of the BJT tube and an emitter electrode in a parallel manner, and capacitors C2 and C3 which are connected between the collector electrode of the BJT tube and the base electrode in the parallel manner. The resistor R3 and the capacitor C3 are output ends. The SiC MOSFET driving circuit prevents mis-conduction through switching on and switching off negative voltage and reduces a negative voltage peak through the crosstalk suppression circuits.
Owner:XI AN JIAOTONG UNIV
Ball washing apparatus and method
InactiveUS6389639B1Easy and quick to cleanEfficient and trouble-freeBowling gamesCarpet cleanersLight sourceHigh pressure
A ball washing apparatus and method for children's play pools includes a venturi assembly having a high pressure air line which brush, diaphragm and air dry balls passing through. A divider at the air line junction of the venturi assembly prevents clogging and jamming as the balls rapidly exit the ball washer through a ball return conduit. Preferably an ultraviolet light source acts as a germicide treatment for the water and balls contained within the washing chamber.
Owner:21ST CENTURY PROD INC
Method for preparing tooth implant locating guiding template
InactiveCN101239007AEliminate gapsEnsure safetyDental implantsDental prostheticsJaw boneBone structure
The invention relates to a method for producing a tooth plant positioning guiding template, comprising the following steps: (1) scanning the jaw bone of sufferers by multiple-layer helix CT to obtain the three dimensional anatomy structure information of the jaw bone; (2) establishing a three dimensional jaw bone model in CAD software; (3) measuring the bone structure of the plant area lack of tooth according to the three dimensional jaw bone model; (4) confirming the plant point, direction and depth of the dental implant according to the measuring result; (5) producing the positioning guiding template entity model based on dental face- bone face combination support type by applying photo-curing rapid forming technology; (6) having surface treatment to the positioning guiding template entity prototype. The advantage of the invention is that: a surgery positioning guiding template adopts a retention method of dental face-bone face combination support with accurate retention, high precision and convenient process.
Owner:SHANGHAI EAST HOSPITAL
Sensor data verification method based on matrix singular values association rules mining
InactiveCN101477375ASmall amount of calculationFast operationElectric testing/monitoringCharacter and pattern recognitionSource Data VerificationData reconstruction
The invention relates to a method for checking sensor data mined based on an association rule of matrix singular values, which is realized by two parts, namely, the first part is measuring point mining of the similar association rule, while the second part is online checking of the sensor data; and the method comprises the following steps: modeling sought measuring point groups with similar association for least square support vector regression, and selecting all operating condition data by a training sample to cover all operating conditions; and for n measuring points, aggregately establishing (n+1) regression models comprising one residual error generating module of n inputs subtracting n outputs for monitoring operating data, and n No. K data reconstruction modules of (n-1) inputs subtracting a single output for reconstructing the operating data of each measuring point, wherein n is the number of sensors for checking the data on line. The invention provides a concept of fluctuation similarity among measuring points of running equipment in the field of uninterrupted industrial production, expands the concept of association rules to similar fluctuated association rules, is supplement and efficient expansion for the association rules in the field, and has actual significance.
Owner:SOUTHEAST UNIV
System and method for identifying human face
InactiveCN103514438AAvoid misleadingQuick identification resultTelevision system detailsMultiple biometrics useComputer visionIr camera
The present invention discloses a system and method for identifying a human face. The system includes a visible light camera, an infrared (IR) camera, a non-contact temperature sensing device and a processing unit. The visible light camera and the IR camera aim at a same photograph zone for respectively photographing at least one visible-light picture and at least one IR picture. The non-contact temperature sensing device senses a present target temperature in a temperature sensing zone, which is in the photograph zone. When the processing unit detects that a human face is existed in the corresponding zone of the visible-light picture and that of the IR picture, it determines if the present target temperature is in a body-temperature range. When the present target temperature is in the body-temperature range, the processing unit determines that the human face detected in the corresponding zone is a live human face.
Owner:PSP SECURITY
Boiler combustion condition identification method based on information entropy characteristics and probability nerve network
ActiveCN103886405AAccurately reflectAvoid misleadingBiological neural network modelsResourcesNerve networkOxygen
The invention discloses a boiler combustion identification method based on information entropy characteristics and a probability nerve network. The method comprises steps of entering a data pretreatment procedure and obtaining typical load points and a characteristic sampling collection of corresponding exhaust smoke oxygen volume and furnace pressure signals through a data input interface, entering a sampling data entropy analysis process and calculating singular spectral entropy and power spectral entropy of the exhaust smoke oxygen volume and furnace pressure signals under the corresponding working condition, using the obtained entropy value signals and the corresponding load working condition point as a training data collection to construct a PNN boiler combustion working condition identification model and outputting the result to a client terminal to join the optimization operation guide and the condition detection. The invention not only solves procedure state characterization problem in the furnace but also reflects the attributes of the furnace operation performance timely and accurately, avoids fault guidance for the operation personnel caused by falsity data and wrong data, and provides a reference model to the boiler operation optimization, state monitor and failure diagnosis of a power plant monitor information system.
Owner:SOUTHEAST UNIV +1
Driving circuit of silicon-carbide semiconductor field-effect transistor
ActiveCN109494969AIncrease the opening speedIncrease ascent speedEfficient power electronics conversionPower conversion systemsCapacitanceMOSFET
The invention discloses a driving circuit of a silicon-carbide semiconductor field-effect transistor. The driving circuit comprises a PWM control circuit, a driving signal amplifying circuit, an opening circuit, a turning-off circuit, a gate current-increasing circuit and a voltage change rate control circuit. With the gate current-increasing circuit, the driving current is increased during the opening process of the SiC MOSFET and the rising of the gate-source voltage of the SiC MOSFET is accelerated, so that the opening speed of the SiC MOSFET is increased. With the voltage change rate control circuit, the Miller capacitance between the SiC MOSFET drain and gate is enhanced and the SiC MOSFET drain-source voltage change rate is reduced, so that the current spike during opening of the SiCMOSFET is reduced. After the SiC MOSFET drain-source voltage does not change, a voltage control switch is turned off to avoid the SiC MOSFET false conduction caused by the crosstalk, so that the safeoperation of the SiC MOSFET is ensured.
Owner:HUAZHONG UNIV OF SCI & TECH
Soft breaking circuit suitable for large power IGBT commercial driver chip
The present invention discloses a soft switching circuit, which is used assorting with commercial drive chip to realize soft switching function or replace original inappropriate soft switching function. The circuit should be provided with simple circuit interface for facilitating assort with commercial drive chip, and take internal power supply that use commercial drive chip as power supply source. Each parameter in the soft switching function is adjustable to adapt soft switching requirement under different working condition, and satisfies electro-magnetism compatible requirement in high power situation.
Owner:CHINA ELECTRIC POWER RES INST +1
Navigation-route pushing method and device, equipment and storage medium
ActiveCN106969782AAvoid misleadingQuick updateInstruments for road network navigationNavigational databaseMarine navigation
The embodiment of the invention discloses a navigation-route pushing method and device, equipment and a storage medium. The method includes the steps: acquiring a path navigation log reported by a navigation user; according a deviation log included in the path navigation log, determining a route confidence coefficient of a system planning route; according to a local deviation log included in the path navigation log, determining a user selection route; when starting-end point information sent by the navigation user is received, according to the route confidence coefficient corresponding to the starting-end point information, providing the navigation user with the system planning route corresponding to starting and end points and / or the user selection route. By the adoption of the navigation-route pushing method and device, the equipment and the storage medium, the rapid reaction on a system navigation route which the user does not select is achieved, a route confidence coefficient corresponding to the system navigation route is calculated, on the basis of the route confidence coefficient, the situation can be effectively prevented that subsequent users are misled by the same system navigation route, the system navigation route which the user does not select can also be rapidly found, and a navigation database is updated rapidly.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Traditional Chinese medicine diagnosis and treatment system based on artificial intelligence
InactiveCN109360647AEasy to see a doctorReduce workloadMedical communicationMedical automated diagnosisData informationData acquisition
The invention discloses a traditional Chinese medicine diagnosis and treatment system based on artificial intelligence. The system comprises a data acquisition module, a data analysis module, a database management module, a prescribing module and terminal equipment. The data acquisition module sends collected data information to the data analysis module. The data analysis module analyzes data information and sends a result to the database management module and the prescribing module simultaneously. The database management module stores the result. The prescribing module gives a suggested prescription according to the result. The traditional Chinese medicine diagnosis and treatment system relies on the intelligent equipment to conveniently collect the four pieces of diagnostic information of looking, smelling, asking and pulse taking, a patient is scientifically and objectively analyzed, a reasonable diagnosis result and a prescription are given, and the patient can conveniently go to see a doctor and a diagnosis speed is increased. Simultaneously, during an application process, through collecting data continuously, based on the artificial intelligence learning of big data, the accuracy of a diagnosis and treatment decision is continuously increased, a new rule is summarized and discovered, and contradictions that the patient is difficult to see the doctor and treatment is expensive are mitigated to some extent.
Owner:康然
Dynamic routing optimization system and method based on real-time traffic information
InactiveCN103177595AGet closure information in timeAvoid misleadingInstruments for road network navigationRoad vehicles traffic controlRoad traffic controlData set
The invention provides a dynamic routing optimization system and method based on real-time traffic information. The dynamic routing optimization system based on the real-time traffic information comprises an information acquisition unit, and the information acquisition unit is communicated with the information publishing center of a traffic management department and can acquire closed road information timely. When a road is closed and impassable due to emergencies such as traffic control, traffic accidents and road construction, even though road information acquired by the information acquisition unit shows that the road is clear and congestion-free, the corresponding road on an information display unit can still be marked as impassibility, so that the road can avoid being chosen an optimized road to misguide people in traffic. According to the dynamic routing optimization system and method based on the real-time traffic information, the routing optimization is based on a dynamic traffic network data set, and influences of dynamic information such as traffic accidents and traffic incidents of the road network on the road traffic are taken into consideration.
Owner:BEIJING E HUALU INFORMATION TECH
Infusion system for preventing mischanneling of multiple medicaments
ActiveUS20160235910A1Avoid misleadingLower blood sugar levelsMedical devicesPressure infusionMedication infusionInfusion set
Exemplary embodiments provide a multi-medicament infusion system (10) for preventing the mischanneling of medicaments. The system may include an infusion pump (12), medicament reservoirs (16A,16B), a multi-channel lumen (18), and an infusion set (20). The medicament reservoirs may be sized and shaped differently such that the medicament reservoirs can only be inserted into the infusion pump in a unique configuration. The multi-channel lumen may include connectors that mate to corresponding connectors on the infusion pump and the infusion set only in a unique configuration. Because the various parts of the multi-infusion system may only be connected in the unique configuration, the expected medicaments may be administered appropriately and channeled to the correct infusion sites.
Owner:TRUSTEES OF BOSTON UNIV
Apparatus and method for obtaining data from a document
An apparatus for obtaining data from a document at point of presentment. The document has a predetermined width, and the apparatus has a frame, a drive mechanism mounted on the frame, and sensors. The drive mechanism is adapted to move the document along a document path in the apparatus between a home position, at which the document is inserted into the apparatus, and an exit position, at which the document is removable from the apparatus. The drive mechanism includes a roller rotatable about a roller axis for engaging a contact portion of the document extending along the width thereof. The roller has a substantially smooth surface for supporting the contact portion. The sensors are for obtaining document data from the contact portion of the document.
Owner:RDM
Building entrance detection method and system
ActiveCN108668233AAvoid misleadingSave human resourcesCharacter and pattern recognitionLocation information based servicePoint of entryReal-time computing
The invention discloses a building entrance detection method and system. The method comprises the following steps: determining positioning information when a mobile terminal enters and exits a targetbuilding based on trajectory data uploaded by the mobile terminal, performing positioning location mapping and clustering processing on positioning locations contained in each piece of positioning information to obtain at least one mapping entrance location cluster, and determining an entrance location of the target building according to a mapping entrance location in the mapping entrance locationcluster. Obviously, according to the building entrance detection method and system disclosed by the invention, a possible entrance point frequently appearing in a certain area of the target buildingcan be mined by location mapping and clustering processing by using the positioning information when a large amount of mobile terminal enter and exit the target building, no worker needs to be assigned to the site, thereby saving a lot of manpower resources. Moreover, for some entrances that are temporarily adjusted to an operate state, for example, an entrance in the maintenance and the like, byadaption of the building entrance detection method and system disclosed by the invention, the abnormality of the entrance state can be detected in time so as to cancel the entrance in a building entrance list to avoid misleading users.
Owner:ALIBABA (CHINA) CO LTD
Device and method for displaying ship perimeter information
ActiveUS20130271309A1Inhibition of informationAvoid misleadingRadio wave reradiation/reflectionComputer scienceVHF Data Link
A ship perimeter information display device is provided. The device includes a sensor information input unit connected with a sensor equipped in a first ship and for receiving an input of a detection result of the sensor, an AIS information input unit for receiving an input of VDO information that is a VHF data link own-ship message contained in AIS information transmitted from the first ship to a second ship, a display unit for displaying a situational image illustrating a situation around the first ship, and a control unit for displaying, on the display unit, information indicating a difference between first state information of the first ship obtained based on the detection result of the sensor and second state information of the first ship obtained based on the VDO information.
Owner:FURUNO ELECTRIC CO LTD
SiC switch tube driving circuit and method of synchronous rectification Buck convertor
ActiveCN107769530AOvercoming shortcomings of crosstalk suppression methodsMeets demanding requirements for reliabilityEfficient power electronics conversionDc-dc conversionControl breakElectrical resistance and conductance
The invention discloses a SiC switch tube driving circuit of a synchronous rectification Buck convertor, and belongs to the technical field of driving a DC-DC convertor power switch tube in a near space aircraft energy system. The circuit is composed of a high-side driver, a low-side driver, a high-side assisting unit and a low-side assisting unit. Combining with a working principle of the synchronous rectification Buck convertor, the SiC switch tube driving circuit controls break-make of related transistors in the assisting units by utilizing voltage values of high-low side drive resistors according to working characteristics of high-low side SiC switch tubes, in the process of fast break-make of the high-side switch tube, a grid source voltage clamp of the low-side switch tube is placedat a turn-off negative voltage position of the low-side switch tube, mis-breakover due to drive signal oscillation of the low-side switch tube or the situation that the low-side switch tube surpassesa biggest turn-off negative voltage value is avoided, and crosstalk inhibition is effectively achieved.
Owner:SHANGHAI INST OF SPACE POWER SOURCES
Method for solving information acquisition of area to which electric meter belongs
InactiveCN106781412APrevents impossible shutdownReliably withstand instantaneous high current and high powerElectric signal transmission systemsPower distribution line transmissionTransformerCarrier signal
The invention relates to a method for solving information acquisition of an area to which an electric meter belongs. According to the method, a host machine is connected below a transformer or concentrator at the area, a subordinate machine is connected at one end of a measured meter, the host machine carries out encoding through adjusting a power frequency zero point position, and broadcasts and transmits a code sequence containing information of the area in turns at A / B / C three phases, while a receiving end subordinate machine receives and demodulates information transmitted by the host machine, and the information comprises an area number and a phase position; and the functions of the subordinate machine can be realized by a carrier wave electric meter through direct compatibility. The invention provides the method for solving the information acquisition of the area to which the electric meter belongs and is combined with a current area power line carrier collecting scheme, the method is free from influence of severe environment, strong noise and high attenuation of a power line channel, and safely and reliably solves the problem that which area the electric meter belongs to can not be accurately judged, powering off is not needed, and the required information can be obtained through the automatic judgment of the electric meter.
Owner:QINGDAO EASTSOFT COMM TECH
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