1296results about How to "Reduce wiring" patented technology

The invention discloses an internet-of-things and android system based intelligent home system which comprises a control host and a plurality of terminal devices. The control host is provided with a high-performance arm processor, a touch screen and an android operation system, supports zigbee, blueTooth, wifi (wireless fidelity), 3G (the third generation) communication, is provided with a built-in web server and a built-in database, has functions of display, operation, control data storage, server, energy management, and particularly has functions of automatic control, hand-operated control, voice control and remote control. The terminal devices include a sensor terminal, a security terminal and a control terminal, are provided with independent processors and network addresses, have functions of data acquisition, data transmission, instruction receiving, transmitting and processing and IO (input / output) control, and support one or multiple wireless communication manners of zigbee, blueTooth, wifi and 3G.

The invention discloses a power supply semi-trailer of electric drive fracturing equipment. The combination manner of a gas turbine engine, a power generator and a rectification unit is adopted, the power generator directly transmits the winding form and voltages needed by a rectification unit, conventional rectification transformer equipment is omitted, the rectification unit is connected with inversion units through common direct current buses, the common direct current buses can drive the multiple inversion units separately, and wiring of power supply circuits is reduced. The high-voltage inversion units are arranged on a gooseneck of the electric drive semi-trailer, and the space arrangement of the equipment is optimized. The whole power supply equipment is more compact in structure, small in occupied area and simple in wiring.

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 elevator safety arrangement and a method for implementing safety spaces in an elevator has a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. According to the method of the invention, detectors in the electric safety system are read by an electric safety controller and, when a functional deviation is detected, one or more stopping devices are actuated to bring the elevator system into a safe operating state.

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.

The invention provides a display panel, a driving method thereof and a display device with the display panel. A pixel circuit in the display panel comprises the components of a storage capacitor; a driving transistor; an initializing module which controls a gate scan line of this grade in an initializing time period for supplying an initial voltage for the first end of the storage capacitor; a compensating module; a data write-in module; a reset module which controls for realizing conduction between the gate scan line of this grade with the second end of the storage capacitor in a light emitting time period; and a light emitting control mold. The driving transistor is conducted in the light emitting time period for driving a light emitting element to emit light. The driving transistor is conducted in the light emitting time period for driving the light emitting element to emit light. The display panel, the driving method thereof and the display device with the display panel settles a problem of lighting brightness non-uniformness of the light emitting element caused by threshold voltage offset of the driving transistor and IR voltage drop of a power line. The gate scan line of this grade is used for supplying the initial voltage and a reset voltage. The display panel, the driving method and the display device with the display panel have advantages of effectively utilizing a gate scanning signal of this grade, reducing number of wirings in a pixel space, and facilitating realization of high-resolution display.

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 discloses a flexible cantilever plate vibration control device on the basis of accelerometers and a control method. The device is symmetrically affixed with a plurality of piezoelectric ceramic sheets on the front and back surfaces of a fixed end of the flexible plate, the polarities of the two surfaces of a plurality of piezoelectric ceramic sheets are reverse, then a plurality of piezoelectric ceramic sheets are connected in parallel to compose a bending mode piezoelectric driver; the two surfaces of the longitudinal middle part of a free end of the flexible plate are anti-symmetrically affixed with a plurality of piezoelectric ceramic sheets, the polarities of the two surfaces of the piezoelectric ceramic sheets are same, then the piezoelectric ceramic sheets are connected in parallel to compose a torsional mode driver, an accelerometer A and an accelerometer B are respectively arranged at the two side angle positions of the free end of the flexible plate; the device has small weight and less wiring, which only needs the two accelerometers to be used as the sensors of the flexible cantilever plate. The method utilizes the optimized configuration of the two accelerometers and the piezoelectric driver to realize the decoupling on the detection and the driving control of the bending mode and the torsional mode of the flexible cantilever plate, thus realizing the purpose of active inhibition of multi-bending and multi-torsinal mode vibration of the flexible plate.

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.

The invention relates to the field of the internet of things for building fire protection, and particularly relates to a system and a method for monitoring the state of indoor passive fire-fighting equipment. The system comprises a plurality of state information acquisition terminals, an information transmission device and a monitor center, wherein the state information acquisition terminal comprises fire-fighting equipment for loading a common RFID (radio frequency identification) tag, a pressure detection RFID tag and a door magnetic switch RFID tag, and an RFID reader; the RFID reader is connected with the information transmission device through an RS485 bus; and the information transmission device transmits data to the monitor center in a wired or wireless manner. The system can be in communication with the monitor center by fully utilizing the existing wired communication network, the wireless communication network or an in-phase power line, and has the characteristics of diverse network access manners, few layouts, high network transmission real-time performance, high stability and the like. The system fills the blank for realizing real-time monitoring of the existing passive fire-fighting equipment, and has low power consumption; and the tag battery has a service life of 2 to 3 years.

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 RFID intelligent monitoring system for deer cultivation based on the Internet of Things, and belongs to the technical field of deer cultivation. The system comprises a plurality of wireless sensor network nodes, a ZigBee routing node, a ZigBee Ethernet gateway, a server, a client, and a video monitoring system. The plurality of wireless sensor network nodes is connected with the ZigBee Ethernet gateway through the ZigBee routing node. The ZigBee Ethernet gateway is connected to the server, and then is connected with the client, so as to transmit data. The video monitoring system comprises a camera, a switch, a hard disk video recorder and a display. The camera is connected with the hard disk video recorder through the switch, so as to receive video data of each deer enclosure, and to display data through the display. The wireless sensor network nodes comprises an electronic neck ring, a radio frequency reading and writing monitoring node, a drinking monitoring node, a feeding monitoring node, a spraying control node, and a sun exposure monitoring node. The system can achieve the intelligent regulation and control of the environment of a deer farm, the scientific feeding management and intelligent early warning for disease prevention, and improves the quality and productivity of deer products.

The invention discloses a cabinet environment monitoring system and a method thereof. The invention comprises at least three wireless monitoring nodes monitoring the monitored target, a management control part and a service manager connected with the management control part. At least one wireless aggregation routing part is arranged between the wireless monitoring node and the management control part. The wireless monitoring node is communicated with the wireless aggregation routing part by a wireless method. The wireless aggregation routing part is communicated with the management control part through network. The wireless monitoring node transmits the monitoring data from the monitored target to the management control part through the wireless aggregation routing part and the wireless node constitutes a wireless self-organizing network. The invention has the advantages that due to the adoption of the wireless monitoring nodes, the wireless aggregation routing part and the management control part, the invention not only realizes the comprehensive monitor for the cabinet environment, environment equipment inside the cabinet as well as the IT equipment, but also is able to monitor the coverage scope through changing the number of the wireless aggregation routing parts and effectively ensures the real-time information transmission.

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 provides a method for dynamically allocating a plurality of slave addresses of a system and the system thereof. The method comprises the following steps: a slave of the system firstly determines a native address and generates an address data of the next slave which is sent to the next slave; the next slave allocates the native address according to the received address data and generates the address data of the next slave which is sent to the next slave; the steps are repeated till all the slaves of the system complete address allocation, and the last slave sends the generated address data of the next slave back to a host computer. The method and the system can be used for allocating address for various bus devices and system composed of a plurality of non-bus devices.

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.