1285results about How to "Reduce wiring" patented technology

The invention discloses an electric driving fracturing type power supplying semitrailer. The electric driving fracturing type power supplying semitrailer is characterized in that a high-voltage switch, a transformer and two rectifying unit sets are adopted to correspondingly drive a plurality of high-voltage converting units and a plurality of low-voltage converting units through common DC buses.The whole electric driving fracturing type power supplying semitrailer is small in size, compact in arrangement, and economic; the common high-voltage switch, the transformer and the rectifying unitsare adopted, so that the wiring of power supplying circuits can be reduced; the equipment quantity and investment output power can be decreased; and the use demand can be met.

In a fold-up type of portable telephone device, the casing to be opened/closed has liquid crystal display devices on its front and back sides, which causes occurrence of noise. In view of this, in the liquid crystal display device of a portable telephone device, a flexible connection substrate is used to integrally form first and second liquid crystal display parts with a driver circuit shared therebetween. The first liquid crystal display part is connected to the flexible connection substrate to which the second liquid crystal display part is connected. The second liquid crystal display device is formed by adding the flexible connection substrate to the first liquid crystal display part, and both are driven by the driver circuit. Not only an alternative display but also simultaneous displays can be selectively performed.

A method and apparatus for twisting and tightening a wire with a free end portion around at least two objects, e.g. iron bars for reinforced concrete, for binding the objects together. The method and apparatus enables a tighter and stronger binding to be performed even by means of a portable device and with the use of less binding wire than required by conventional devices.

The invention discloses a comprehensive test stand for water-lubricated bearings for pumps. The comprehensive test stand comprises a driving transmission system, a main box, a bearing, a lubricating system, a loading system, a measuring system, a signal analyzing and processing system and the like, the driving transmission system consists of a variable-frequency motor, an elastic coupler, a step-up box and the like, the main box is a cube with a transparent top cover plate, and a spindle horizontally enters the box from a side wall, which is close to the end of the elastic coupler, of the main box. A pressure sensor, an eddy current sensor, a vibration acceleration sensor, a temperature sensor and the like are sequentially arranged and mounted on the spindle or around the spindle and used for acquiring displacement signals, rotation speed signals, phase signals, temperature signals, pressure signals, vibration signals and the like, and the sensed signals which are acquired by the various sensors in an online manner are transmitted to an upper computer to be processed, displayed and stored. The comprehensive test stand has the unique advantages of fine performance, high precision, low cost, environmental protection, zero pollution, friction reduction, energy conservation, noise and vibration reduction, fine fire resistance, easiness in maintenance and the like.

The invention discloses a fingerprint identification member, an identification method, a display member and a display device. The fingerprint member comprises a plurality of finger print identification units which are arranged in a matrix, finger identification scanning lines which are in one-to-one correspondence with the finger identification units in each line, and fingerprint identification reading lines which are in one-to-one correspondence with each column of the fingerprint identification units; each fingerprint identification unit comprises a first film transistor and a second film transistor; the light current generated by the first film transistor in each fingerprint identification unit corresponding to the fingerprint identification scanning line is transmitted to the fingerprint identification reading line through the second film transistor in the fingerprint identification unit by loading scanning signals on various fingerprint identification scanning lines to control the opening of the second film transistor in the corresponding fingerprint identification unit; the fingerprint can be identified through detecting the light current on the fingerprint identification reading line without arranging the signal lines which are in one-to-one correspondence with the various first film transistors. The invention reduces the wire arranging of the fingerprint identification unit and simplifies the structure of the finger identification member.

An oil field process control system including a field versatile control gateway component that interfaces with a plurality of field devices using a broad range of hardwired and wireless protocols, offering in-the-field monitoring and control of each of the field devices and communicates with a remote central control room, exchanging data between the control room and the field using a multiplexed protocol that offers high data speeds and bandwidth, enabling a significant reduction of the amount of wiring, and conduits and other infrastructure expenses that would otherwise be incurred for such a highly reliable communications system.

An electrified ceiling framework system having a plurality of grid elements forming a grid network arranged in a substantially planar arrangement. A conductive material is disposed on a surface of at least one of the plurality of grid elements. The conductive material is electrically connected to a low voltage power source and has a contact surface connectable to a low voltage device.

The embodiment of the invention discloses a face identification method and a face identification system, which relate to the technical fields of biological characteristic identification and wireless transmission and have the advantages of effectively guaranteeing the real-time of face video acquisition and effectively reducing the problems of wiring, installation and maintenance caused by a wire data connecting mode. The face identification method comprises the following steps of: establishing 3G video communication connection with a front-end face acquisition terminal; receiving the face video of the front-end face acquisition terminal in real time through a 3G wireless network; and identifying the received face video. The face identification system comprises the front-end face acquisition terminal (101), a rear-end video receiving server (102) and a rear-end face identification server (103), wherein the rear-end face identification server (103) is connected with the rear-end video receiving server (102). The embodiment of the invention is mainly applied to face identification.

A converting device with multiple input terminals and two output terminals is disclosed for converting Direct Current (DC) power from a power source to Alternating Current (AC) power. The converting device includes N pairs of input electrodes (N is an integer and N≧2), configured to receive the DC power from the power source, N maximum power point trackers, each coupled to one pair of the N pairs of input electrodes, configured to track a maximum power operation point for the DC power received from the one pair of the N pairs of input electrodes, two DC/DC converters, each coupled to one of the N maximum power point trackers, configured to convert a DC voltage received from the one of the N maximum power point trackers, a DC/AC inverter, coupled to the N DC/DC converters, configured to convert N DC voltages provided by the N DC/DC converters to an AC output signal, and a controller, coupled to the N DC/DC converters and the DC/AC inverter, configured to control the DC/DC conversion operation of the N DC/DC converters and the DC/AC conversion operation of the DC/AC inverter.

A multilayer wiring substrate mounted with an electronic component includes an electronic component, a core material layer having a first opening for accommodating the electronic component, a resin layer which is formed on one surface of the core material layer and which has a second opening greater than the first opening, a supporting layer which is formed on the other surface of the core material layer and which supports the electronic component, a plurality of connection conductor sections which are provided around the first opening and within the second opening on the one surface of the core material layer, bonding wires for electrically connecting the electronic component to the connection conductor sections, and a sealing resin filled into the first and second openings in order to seal the electronic component and the bonding wires.

The invention relates to a hydrogen management system of a vehicle-mounted fuel cell. The hydrogen management system comprises a hydrogen control unit (15), and a hydrogen bottle electromagnetic valve (4), a hydrogen bottle pressure sensor (2), a temperature sensor (5) and a hydrogen concentration sensor (16) which are connected with the hydrogen control unit (15) separately; the hydrogen bottle electromagnetic valve (4), the hydrogen bottle pressure sensor (2) and the temperature sensor (5) are connected with a vehicle-mounted high-pressure hydrogen bottle (1) separately; a probe of the hydrogen concentration sensor (16) is arranged in the environment above the high-pressure hydrogen bottle (1); and the hydrogen control unit (15) is in communication connection with a vehicle-mounted fuel cell controller through CAN. Compared with the prior art, the functions of hydrogen adding control, hydrogen supplying control, safety detection and the like of a vehicle-mounted hydrogen storage system can be realized, cable connection between systems is reduced, and signal missing in a signal transmission process and risk of high probability of interference are lowered.

A safety controller provides a safety output to a target controlled system such as a magnet contactor based on an input from an input device such as a safety door switch to thereby control operation of machine equipment. Safety output parts serve to transmit a solid-state output as the safety output and a connection output part transmits a connection output to another safety controller. A control part having two CPUs controls the safety output and the connection output according to a program based on the input from the input device. Two or more of such safety controllers are connected through their connecting output parts and the connecting input parts to together form a safety system.

In a pulse width modulation-controlled, switched bridge, DC converter, the phase angle (44, 45) of the AC mains (4) is provided without sensing the voltage thereof, by a phase-locked loop (47) having one input (75) derived (126) from the in-phase voltage command Vde* (61) and another finit (77) approximating the line frequency; the phase-locked loop is initialized at a phase angle thetainit(76) equal to the arctangent (124) of the in-phase Vdest, and quadrature Vqest representation of estimated line voltages ere, ese, ete (119-121) derived during an initialization cycle from reconstruction of the fundamental component of the AC main currents at a phase angle (93) changing with said frequency. Reconstruction includes providing the discrete Fourier transform (DFT, 81) of signals indicative of currents (37) in the AC mains and the inverse DFT (122) of the resultant Fourier coefficients eia, eib.

A self-powered solar tracker array system and related method, where a torque tube supporting a plurality of strings of photovoltaic (PV) modules, a DC drive motor with a motor controller circuit, and a drive assembly is capable to rotate the torque tube with torque generated by the drive motor, where the power for operating the drive motor is taken from electricity generated by the PV modules. The system can include a battery to provide a power source for rotating the torque tubes when the PV modules are not generating electricity.

Any one of a write scanning line, a power source supply line, and a video signal line is structured as a subsidiary wiring disposed in the same layer as that having a lower electrode disposed therein. The subsidiary wiring is used in the power source supply line through which a power source drive pulse to be pulse-driven is transmitted, or other wirings (such as the write scanning line and the video signal line).

The invention relates to an image forensic method for the traffic management industry, in particularly to a method for the image forensics of motor vehicle plate covering and staining behaviors, wherein an induction coil or video detection is utilized to detect vehicles, and when a passing vehicle is detected, a signal is sent to a control host; the control host receives the signal, a wireless network is utilized, and simultaneously, a plurality of high-definition cameras are enabled to shoot; the cameras shoot from multiple angles, the shot pictures of the cameras from the adjacent angles can clearly capture the common part of the vehicle, and condition that the pictures are a group of pictures of the same vehicle from different angles is proved; the road surface has an obvious mark when the vehicle is shot, the mark can be identified from the shot picture, so the group of pictures are further proved to be taken on the same vehicle from multiple angles at the same place; through global positioning system (GPS) timing, all the cameras are synchronized, times and places are added onto the pictures after the cameras take the pictures, so the group of pictures are further proved to be taken on the same vehicle from multiple angles at the same place; according to steps 3 to 5, an complete chain of evidence is formed; and a plate identification system is utilized to compare a head picture with a tail picture of the vehicle to find out the plate covering or staining condition.

The embodiment of the invention discloses a pixel circuit and a display device. The pixel circuit comprises a data voltage write-in module, a driving module, a storage module, a light emitting module and a leakage current suppression module. The data voltage write-in module is used for writing data voltage into the control end of the driving module. The storage module is used for storing data voltage of the control end of the driving module. The driving module is used for driving the light-emitting module to emit light according to the data voltage of the control end of the driving module. The leakage current suppression module is electrically connected with the control end of the driving module and is used for maintaining the potential of the control end of the driving module. The potential of the control end of the driving module is not easy to release in the light emitting stage, so that the potential of the control end of the driving module can be well maintained, and the display effect is improved. Moreover, the driving frequency of the pixel circuit can be reduced, and the power consumption of the whole display device comprising the pixel circuit is reduced. And the area of the storage module can be reduced, so that the pixel density can be improved.

The invention relates to a vehicle power battery pack management system integrated into an electric vehicle instrument and a control method thereof, and belongs to the field of integrated management of power battery packs. The vehicle power battery pack management system comprises a parameter dynamic sampling module, a heat management module, a battery state calculation module, a battery chargingand discharging management module, an instrument panel liquid crystal display module and an interface. The battery charging and discharging management module is respectively connected with a controller area network (CAN) bus and the instrument panel liquid crystal display module through the interface. The instrument panel liquid crystal display module is connected with the CAN bus. The heat management module and the parameter dynamic sampling module are also respectively connected with the CAN bus. The control method is to monitor a battery state and faults through a control program. The power battery pack management system is convenient to maintain when integrated into the electric vehicle instrument; the work reliability of the system is improved; a remote control interface of an instrument panel can change the management strategy at any time according to the working state of a power battery pack so as to guarantee that the battery pack operates in the optimal state and prolong the service life of a motor.

A method for transmitting clock synchronous signal supporting multimode base station includes generating system clock according to clock inputted into base station, generating synchronous burst containing synchronous information in system supported by multimode base station according to generated system clock and outputting system clock and synchronous burst to rear panel of multimode base station. The device used for realizing said method is also disclosed.

The invention discloses a cast-in-place concrete major-diameter pipe pile body strain monitoring method based on BOTDA. The cast-in-place concrete major-diameter pipe pile body strain monitoring method is characterized in that a pair of vertical reinforcing steel bars are connected with arc-shaped reinforcing steel bars with arcs which are 1/4 of the circumference of a pipe pile to form carrier reinforcing steel bars. Grooves are formed in the carrier reinforcing steel bars, sensor fibers are embedded in the grooves, and the grooves are filled with epoxy resin. The pair of carrier reinforcing steel bars with optical fibers in an embedded mode are embedded in the cast-in-place concrete major-diameter pipe pile. Short pulsed light and continuous probe light are injected from the two ends of the sensor fibers with the BOTDA method, and strain information of points in the axial directions of the sensor fibers is obtained by measuring frequency changes of stimulated brillouin scattering light in the sensor fibers. The cast-in-place concrete major-diameter pipe pile body strain monitoring method has the advantages of being simple in construction wiring, resisting to interference, being high in accuracy and the like.