227results about How to "Reduce system cost" patented technology

Methods and apparatus are presented that reduce the overall system cost for automotive radar sensing applications. In accordance with aspects of the present invention, one way sensor count reduction can be achieved is through the coverage of multiple vehicle sides through a single sensor. One embodiment combines all high-frequency signal sensor components with an antenna network which are together separately housed as an antenna unit. Each antenna unit transmits high-frequency radar signals and receives and down-converts reflected portions of said transmitted signal. The low-frequency down-converted signals produced by each antenna unit are processed through a shared processing unit which may be separately housed from all antenna units or commonly housed with an antenna unit. In addition, methods for effectively utilizing a sensor comprising multiple antenna units are described according to aspects of the present invention. Other methods and apparatus are presented.

The invention relates to the field of occupation of the mass data memory space and backup and recovery of historical data, and in particular provides a data recovery and synchronization method based on log snapshots. The data recovery and synchronization method based on the log snapshots adopts log files with given format to record changed information of data of databases each time; the changed information is formatted, positioned and stored into the log files; an analytic program calls an approximate algorithm to acquire effective data on set time points by means of multithreading; the data is temporarily stored into a temporary table, and abstract data snapshots are generated according to the temporary table; and data recovery and synchronization is realized by utilization of the snapshots. The data recovery and synchronization method based on the log snapshots can greatly reduce the burden of a database system, obviously improve the efficiency of the database system and an application system, save a great deal of memory space, and reduce the operation cost of the systems.

The embodiment of the invention provides a multi-node management method and a multi-node management system. The system is characterized in that: the system comprises a plurality of nodes connected with one another through a local area network; one of the nodes is a master node, the other nodes are sequenced slave nodes, when the master node is anomalous, one of the slave nodes is taken as a new master node, wherein each node comprises a baseboard management controller (BMC) management subsystem; the BMC management subsystem is used for executing the monitoring management of the node to which the BMC management subsystem belongs and generating monitoring information; when taken as the master node, the node is also used for connecting the slave nodes through the local area network, executing system management of a plurality of nodes and generating system management information by interacting with an outer network; or when taken as slave nodes, the nodes are used for transmitting the monitoring information to the master node or receiving the system management information transmitted by the master node. According to the technical scheme, the processing capability of the BMC is utilized, so that system cost is reduced; and in addition, according to a master-slave relationship formed among a plurality of nodes, the reliability and the fault-tolerant property of the system can be improved.

An area array connector adapted to connect contact pads on a first generally planar circuit element to corresponding contact pads on a second generally planar circuit element is described. The area array connector includes an interposer housing and at least one electrical interconnector positioned within the interposer housing. The at least one electrical interconnector is comprised of a plurality of electrical contacts stacked in a substantially parallel relationship to one another. The at least one electrical interconnector is positioned to make contact with a first contact pad on the first generally planar circuit element and a second contact pad on the second generally planar circuit element to provide an electrical interconnection therebetween.

The present invention relates to the measurement of vital signs such as a respiratory rate or a heart rate. In particular, a system (1) for determining a vital sign of a subject (100), comprising an imaging unit (2) for obtaining video data of the subject, a marker (10, 20, 60, 61) directly or indirectly attached to a body of the subject, wherein the marker comprises a graphical pattern (11, 21), an image processing unit (3) for detecting said marker in said video data, and an analysis unit (4) adapted to extract a vital sign parameter related to the vital sign of the subject from said video data and to determine the vital sign from said vital sign parameter. Further aspects of the invention relate to a device and a method for determining a vital sign of a subject and a computer program for carrying out said method.

The invention discloses a supercritical air energy storage/release system with a novel process. The off-peak (low price) electricity of the power station is adopted by the system to compress the air to a supercritical state (simultaneously store the heat of compression), an expansion machine is utilized to cool the air, simultaneously the work of expansion is recycled to drive a first-stage compressor to improve the system efficiency, and the stored cold energy is utilized to cool, liquefy and store (store the energy) the supercritical air; at a peak of electricity consumption, the liquid air is compressed and absorbs heat to be supercritical (simultaneously recycles the cold energy), further after absorbing the compression heat or the other industrial exhaust heat, the solar energy central heating and the like, the liquid air drives the generator to generate electricity (release energy) through a turbine. The supercritical air energy storage system disclosed by the invention has the advantages of having high energy density and high efficiency, being free from limitation of the energy storage period and the geography condition, being suitable for a variety of power stations (including regenerative energy power stations such as wind energy), being environment-friendly, being capable of recycling the middle-low temperature (heat value) waste heat, and the like.

The invention relates to a real-time deformation monitoring pre-warning system based on an inertia-assistance positioning receiver and a real-time deformation monitoring pre-warning method based on the inertia-assistance positioning receiver. The real-time deformation monitoring pre-warning system is characterized by comprising a GNSS (global navigation satellite system) receiver, an accelerometer, a deformation monitoring device including a data interface and a time synchronization module, and a GNSS correction information obtaining device connected with the GNSS receiver and the deformation monitoring device respectively, wherein the data interface is connected with the time synchronization module in sequence, and the GNSS receiver and the accelerometer are connected with the data interface simultaneously. The GNSS receiver outputs the precise positioning result in real time; meanwhile, the accelerometer is adopted to help to capture dynamic deformation signals, the sampling rate stored by data is adjusted reasonably, and the storage space is saved; and due to the arrangement of a buffer area, the high-sampling-rate data of foreboding period of the severe deformation can be stored completely. The system and the method can be widely applied to the monitoring and the pre-warning of the geological disasters such as earthquake, landslide and the like, and applied to the deformation monitoring of dams, bridges, high-rise buildings and the like.

The present invention relates to a double-supply three-product heavy-medium cyclone separator and coal separation method. Said cyclone separator is formed from suspension mixing device, first cycloneseparator and secondary cyclone separator; said invention coal separation system includes: qualified medium barrel, main pump, auxiliary pump, auxiliary pump frequency converter, main pipe, auxiliarypipe and double-supply three product heavy medium cyclone separator. Said invention also provides its coal separation method, and can be used in the washing industry of the coal.

The invention is adapted to the field of electrical equipment control and provides an electrical equipment power control method. The electrical device comprises communication interfaces, instant power detectors and equipment actuators. The equipment actuators and the instant power detectors are connected with a control center through the communication interfaces. The method comprises that the instant power detectors detect the electrical equipment instant operation power; the control center receives the instant operation power sent by the electrical equipment to determine the power sum of the current operation electrical equipment; the communication interfaces send adjusting instructions to the electrical equipment actuators if the power sum is larger than the preset power limit value to adjust the electrical equipment operation power. By means of the method and the device, effects on use of equipment caused by the power failure can be prevented, the system cost and the control cost are saved, and electrical equipment can be managed centrally uniformly.

The invention discloses a fault traversing performance analog system of a double-fed wind driven generator, comprising a motor system, an imitator main circuit, a DSP control system and an upper computer monitoring system based on Labview software. The motor system comprises a direct-current motor and a double-fed motor coaxially connected with each other; the imitator main circuit comprises a frequency converter, a direct-current speed regulator, a Crowbar circuit and a voltage spiller module, wherein a voltage spilling generator is connected between the power source and the double-fed motor; the frequency converter is connected between an output end of the voltage spiller and a rotor of the double-fed motor; the direct-current speed regulator is connected between the input end of the voltage spiller and the direct-current motor; and the Crowbar is connected at the rotor side of the double-fed motor. The system has complete analog function of the fan operational characteristic duringa fault of power grid, provides perfect test platform for the research of the double-fed motor and can be used for researching the performances of low-voltage traversing, support to weak grid, and the like.

Systems and methods monitoring battery bus bars are disclosed. In one example, positive temperature coefficient thermistors are coupled to battery bus bars. The systems and method may reduce the cost and complexity of battery bus bar monitoring.

The invention discloses a method for real-time conveying the DGPS data with the observing and control chain circuit of the unmanned aerial vehicle, and the method is applied in the DGPS navigating of the unmanned aerial vehicle. The method comprises four steps as follows: DGPS data encoding, information complexing, information decomposing, and DGPS data frame decoding and processing. At the state of no increasing wireless data digital transmission station, the method has the effects of realizing the real-time wireless conveying between the earth DGPS reference station and the airborne DGPS receiver, saving the earth and airborne wireless digital transmission station, reducing the system cost, reducing the supplying pressure of the airborne electric power source and the weight of the vehicle, simplifying the installing problem of the airborne equipment, and eliminating the mutual interference problem which is difficult to eliminate in the existing technique and between the airborne DGPS digital transmission station and the observing and controlling station.

The invention relates to a particle operation path imaging device and the visual method, belonging to observation and analysis technologies for liquid flow field. In the flow field visual device camera, light source, light shielding plate, condensing lens and vessel for particles are installed on the platform. The light source emits infrared or ultraviolet light and light beam is formed after lights passes through the light shielding plate and the condensing lens to irradiate the vessel for particles. Particles display their moving paths in liquid medium and by camera their moving paths are recorded. The invention is applied for imaging of particle, which can absorb black light. It can record particle moving path directly by common camera or digital camera and infrared or ultraviolet linear light source. High-speed CCD of PIV system, laser and analysis calculation software for particle correlation can be omitted so that system cost can be decreased greatly. The cost of invention is about 1/40-1/10 of cost of current common PIV.

The invention discloses a wireless code hopping system and a device for a remote control door lock. The system comprises a remote control key and the remote control door lock, wherein the remote control key comprises a trigger module, a first storage module, an encryption module and a transmitting module; the remote control door lock comprises a decryption module, a second storage module and a control unit; the trigger module is used for transmitting a trigger signal after the push-down of a button is determined; the first storage module is used for storing a hopping code, namely a hopping code updated after the trigger signal is transmitted every time, and a product serial number; the encryption module provided with an encryption program is used for performing raw data encryption on the read product serial number, the read hopping code and button information; the transmitting module is used for transmitting encryption data acquired after the encryption at high frequency; the remote control door lock is used for receiving the encryption data; the decryption module provided with a decryption program is used for decrypting the received encryption data to acquire raw data; and the control unit is used for judging whether to perform the unlocking/locking action of the remote control door lock by matching the raw data with a production serial number and a hopping code which are stored in the second storage module. The system and the device have low cost, high stability and high reliability.

Bus communication for components of a system on a chip. In one aspect of the invention, a system including bus communication to a slave includes a bridge operative to interface a first bus protocol to a bus matrix that uses a second bus protocol. A first serializer coupled to the bridge serializes information received from the bridge and sends the serialized information over a communication bus. A second serializer coupled to the communication bus receives the serialized information and deserializes the serialized information. A slave uses the first protocol and is coupled to the second serializer, where the deserialized information is provided to the slave, and the slave provides a response to the information from the bridge.

The invention relates to microgrid and power quality management and aims to provide a multifunctional grid-connected parallel inverter group intelligent control method used in a microgrid. According to the control method, aiming at selected harmonics and reactive current at PCC of a grid-connected point of the microgrid, a multifunctional inverter group intelligent control strategy is adopted; a full-distributed hierarchical control scheme based on a finite time consistency algorithm is adopted for compensation; and all distributed power supplies share compensation capacity according to respective surplus capacity proportions. On the condition of no increase of extra power quality control equipment of the microgrid, the control method disclosed by the invention overcomes the defect that a single inverter has surplus capacity deficiency in term of compensation of harmonics and reactive current; the function that a multifunctional inverter group shares compensation capacity according to surplus capacity proportions can be achieved without use of a central controller. With adoption of the control method, the investment and operation maintenance cost of the microgrid can be reduced, the power quality of the microgrid can be improved and high flexibility can be achieved.

One or more embodiments of the invention provide(s) a block chain-based data migration method and a block chain-based data migration device. Data storage is performed by use of node equipment of a block chain. A storage framework of the node equipment of the block chain comprises a first storage system and a second storage system docked with the first storage system. The method comprises the stepsof receiving a latest block of the block chain, and storing the latest block in the first storage system; determining whether a migration triggering event for block data stored in the first storage system is detected; and if the migration triggering event is detected, migrating block data prior to migration reference time stored in the first storage system to the second storage system.

The invention provides a data sharing method and system based on embedded servers as well as a client. The method comprises the following steps: the client obtains and installs the Web application program as the browser plug-in; the parameters of the embedded servers needing to be connected are configured for the Web application program; connection is established between the Web application program with parameters configured and relevant embedded servers; and the Web application program reads data from the embedded servers with connection established and carries out corresponding service processing. Through the Web application program installed on the client, the scheme of the invention realizes that one client can establish connection with a plurality of embedded servers and obtain and process data, and can give full play to the data processing capability of the client machine, realize sharing of the data in the embedded servers with relatively few system resources without additionally configuring the high performance network server and save the system cost.

The invention discloses a three-dimensional flow field image measurement device and method adopting a single lens, which are characterized in that a polarized light source is used for illuminating a flow field to be detected; light from a camera lens is divided into two paths through a light splitting prism and polaroids are respectively used for carrying out polarization detection for the two paths; two CCDs (Charge Coupled Device) or CMOS (Complementary Metal-Oxide-Semiconductor Transistor) image sensors are respectively used for imaging; a relative gray level of a corresponding tracer particle in two pictures can be used for judging whether the tracer particle is located in front of a focusing plane or in back of the focusing plane; the distance between the position of the tracer particle and the focusing plane is computed according to the size of a defocusing amount of the tracer particle of the single picture, so as to only determine a three-dimensional position of the tracer particle; and a movement fuzzy parameter is combined to further obtain a three-dimensional movement speed of the tracer particle, namely the information of a three-dimensional flow field is obtained. The three-dimensional flow field image measurement device and method adopting the single lens have the beneficial effects that the three-dimensional measurement of a transient flow field can be realized by only one camera lens, a measurement system and a data processing process are simplified, and the system cost is reduced.

The invention relates to a device and a method for acquiring biological electric signals. The full differential amplification technology is used on a signal acquisition channel, so that a link that transition is performed by using a single-ended signal in the processes of converting a differential signal into the single-ended signal and converting the single-ended signal into the differential signal in the conventional products is avoided; an analogue switch is utilized reasonably by utilizing the cost advantage of the analogue switch relative to instrument amplifiers and computing amplifiers according to system parameters to reduce the using quantity of the instrument amplifiers; a system can detect a pace-making pulse signal directly in an undistorted mode when reaching the sampling rate of 20 kilo samples per second (Ksps), so that a complex PACE widening circuit is not required to be used; the cost of the system is reduced; in a direct-current amplifying circuit structure, a time constant circuit is not provided, the signals are quickly detected, a baseline is stable, the dynamic input range of the signals is large, a small number of devices are provided, the reliability is high, and the miniaturization of products is facilitated; and by the matching of a high-speed analog-digital converter, the sampling rate of the system can be improved.

The invention provides a distributed gas sensing system and a control method thereof. The system comprises a laser device, a gas detection main control board, an optical circulator, a multi-way optical switch and at least one gas detection gas chamber; the gas detection main control board is used for driving the laser device and controlling gating of the multi-way optical switch; the optical circulator is used for transmitting a laser signal outputted by the laser device to the multi-way optical switch, and transmitting a laser signal fed back from the multi-way optical switch to the gas detection main control board; the multi-way optical switch is used for gating a one-way laser signal; and the at least one gas detection gas chamber is used for absorbing spectra and reflecting the laser signal back to the multi-way optical switch; the gas detection main control board is also used for receiving a laser signal outputted by a third port of the optical circulator, and after photoelectric conversion, the gas concentration is calculated. The main control board controls the multi-way optical switch, one laser device controls multiple ways to perform gas detection, and thus the cost of the system is greatly reduced.

A capsule camera includes a pixel cell array of pixel cells exposed to light from a field of view, an illuminating system that illuminates the field of view, a signal processor receiving and processing data from the pixel cell array, and a control module that causes the pixel cell array to be read out using an improved scanning method. The scanning method includes pre-charging the pixel cells in the pixel cell array, illuminating a field of view of the pixel cells for a predetermined exposure time, and reading out data from the pixel cells only after the illuminating of the field of view is completed. The pre-charging of the pixel cells is carried out over a predetermined time period prior to the field of view being illuminated. The rows of the pixel may be precharged at different times. The time interval between the precharging and the reading out of the pixel cells in each row may be substantially the same. In one instance, the reading out of the pixel cell array is spread out to substantially the time between capturing successive frames of image data. As a result, a transmitter may transmit the processed image data at an average data rate falling substantially within the allowable bandwidth of transmission under the FCC MISC band. In one instance, each row of pixel cells is exposed for the entire duration the illumination system is turned on. A group of pixel cells may be provided outside of the field of view (e.g., at the outer edge of the pixel cell or sensor array. The data that is read from this group of pixels outside the field of view may be used to compensate for thermal and system noise in the data within the field of view.

The invention relates to a method for testing business with a pseudo mobile phone terminal, which comprises at first establishing a mobile phone terminal model base which comprises a model capacity base function module, a pseudo mobile phone model module, a manufacturer module, a wireless capacity parameter module, a professional qualification parameter module and a terminal capacity parameter module, simultaneously, establishing a virtual SIM card module which comprises an IMSI and MSISDN group, a Ki and authentication arithmetic group and an APN group proved by HLR, and combining various applying businesses needed to be applied on the Internet to a plurality of protocol stack. The model capacity base function module and the Ki and authentication arithmetic group control every protocol stack, the mobile phone terminal model base and the virtual SIM card module to cooperatively mutually test. The method for testing business with a pseudo mobile phone terminal of the invention has the advantages of compatibility of lowing testing system cost and enhancing flexibility of extended function for the testing system.

The embodiment of the invention discloses a method for carrying numbers, which comprises the following steps that: a first network performs account cancellation operation on a user after receiving a roll-out request of the user; the first network informs a second network to open an account for a number of the user in the first network; the first network informs the user about that the network is switched successfully after receiving an instruction of the successful account opening for the user by the second network. The invention also discloses a device and a system for carrying the numbers. By using the embodiment of the invention, the signaling interaction times are reduced, and the system performance is improved.

The invention discloses a portable multi-component online monitor of gas dissolved in transformer oil. A plurality of semiconductor lasers are arranged in a main chassis, each semiconductor laser is connected with a semiconductor laser controller, each semiconductor laser is jointly connected with a signal generating circuit and a 1*N photoswitch, the 1*N photoswitch is connected with an output optical fiber connector on the main chassis, the output optical fiber connector is connected into a long-optical distance gas absorption cell through an output optical fiber, the long-optical distance gas absorption cell is connected with an input optical fiber, the other end of the input optical fiber is connected with an input optical fiber connector on the main chassis, the input optical fiber connector is connected with a calibration absorption cell in the main chassis, and a focusing lens, an infrared photoelectric detector, a connecting lock-in amplifier and a data acquisition control module are sequentially arranged at a front-end light exit of the calibration absorption cell. According to the portable multi-component online monitor, the demand on safe monitoring of a transformer is met, and the high-sensitivity and real-time online monitoring of a failure of the transformer is actually realized.

The invention discloses an urban fire disaster monitoring system based on the Internet of Things architecture and the WebGIS, and belongs to the field of environmental monitoring. The urban fire disaster monitoring system comprises a sensor node, a gateway coordinating node, a server and a client side. The sensor node comprises a humiture sensor and a wireless transmission module, and is used for measuring humiture data and sending the data to the gateway coordinating node, or is regarded as a routing node to forward the data. The gateway coordinating node comprises a wireless transmission module and a GPRS communication module, and is used for receiving and analyzing data of a child node and sending the data to the server. The server comprises a Web server, a GIS server and a database server, and is used for analyzing and processing the data of the sensor and generating an urban fire risk level model map which comprises a fire risk level and positional information. The client side is used for remote detection, prevention and positioning on fire risk data, setting of remote parameters and the like. The system construction cost is low, network nodes can be rapidly expanded, and remote monitoring, predicting and positioning on urban fire disasters of different areas in a network are achieved.

The invention discloses a front wheel angle measuring system based on double GNSS antennas and a uniaxial MEMS gyroscope. The system is mainly composed of a uniaxial MEMS gyroscope which can be mounted on a wheel of a vehicle, two GNSS receivers which can be mounted on two sides of the vehicle body and a navigation control computer. A group of moving information data is measured for each part of the system by using the uniaxial MEMS gyroscope and the two GNSS receivers, and information on moving data of each part is processed to obtain moving gesture information of a main body and related angular moving information between the main body and a rotating mechanism; and the GNSS antennas and the uniaxial MEMS gyroscope collect moving part data, and the navigation control computer substitutes the speed resolved by the GNSS antennas after error compensation of a lever arm into a Kalman filter model to estimate the rotating angle of the wheel relative to the main body. The double GNSS antenna system can eliminate or reduce atmospheric errors and ionospheric errors. The moving information of the system is collected by using the uniaxial MEMS gyroscope, so that the system cost is lowered and the system mounting process is simplified.

The invention discloses a distributive optical fiber vibration sensing system based on the wave division multiplex technology, which comprises a vibration position detector and a vibration frequency detector. According to the invention, the vibration position detector and the vibration frequency detector share a long-distance sensing optical fiber by a special structure. The distributive optical fiber vibration sensing system has the beneficial technical effects that under the condition of simultaneously obtaining the vibration position signal and vibration frequency signal, the length of the long-distance sensing optical fiber required to be arranged is greatly shortened, and the system cost is saved; and based on the mature wave division multiplex technology, the accuracy of two optical signal is guaranteed, so that the system can realize high-precision detection on the vibration position signal and the vibration frequency signal.

The invention relates to a hydrological measurement and control terminal based on ARM. The terminal adopts a microprocessor unit as a core, which is connected to a power supply management module, a storage device, a touch screen and a transmission unit, wherein the transmission unit comprises a Gray code interface circuit and a wireless transmission module, and the Gray code interface circuit is connected to a sensor. The hydrological measurement and control terminal based on ARM solves the defects that a human-computer interface is not friendly and program cannot be updated remotely due to that the existing hydrological measurement and control terminal on the market is designed by using a single chip computer as a platform and limited by factors such as processing speed and image processing capacity.

The invention discloses a multisystem access platform, which includes: a diplexer unit that can independently make duplex separation on at least two channels of signals with different frequency bands so that the up signal and the down signal of each frequency band can be independent to each other; a down subcircuit unit that can subcircuit the down signal of each frequency band that is separated by the diplexer unit into a down composite signal and output the final signal; a down distribution unit that distributes the down composite signal from the down subcircuit unit into signals with even number of channels and then output the signals ; an up synthesis unit that synthesizes at least two channels of up composite signals input from different transmission paths; an up distribution unit that distributes the up composite signal and feeds the distributed signals in the diplexer unit. With the up link, down processing link and the direct connection link together, the multisystem access platform provided by the invention can not only transmit the down signal, up signal simultaneously but also can make simplex transmission on one of the up signal and down signal.