367results about How to "Avoid misleading" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.