44results about How to "Simplify System Design" patented technology

Apparatus and method for cleaning air. An air cleaner includes a housing that defines an airflow pathway and a catalytic reactor having a catalyst secured on a porous substrate that is disposed transverse to the airflow pathway. Preferably, the catalyst includes a light activated oxidizing photocatalyst or a thermally activated oxidizing catalyst. A photocatalytic reactor will include a light source directed at a light activated oxidizing photocatalyst, such as TiO₂ particles or a binary oxide particle species, which is disposed on the porous substrate. Most preferably, a metal catalyst is disposed on the photocatalyst particles at a concentration or loading between about 0.01 wt % and about 5 wt %. The air cleaner may further comprise an adsorption matrix upstream of the catalytic reactor, optionally in combination with a heater. A particulate filter and/or an electrostatic precipitator may also be disposed upstream of the adsorption matrix and the catalytic reactor.

The present invention discloses a blade server management system comprising a plurality of management subsystems provided on each blade in a blade server and connected to each other via a local area network, each of which implements remote control and self-management for the corresponding blade, and said management subsystems including at least one master management subsystem for monitoring the operation parameters of the blade server through a monitoring subsystem; a communication subsystem provided on a backboard for connecting a external network and said local area network made up of said management subsystems; and a monitoring subsystem provided on the backboard and connected to said management subsystems for monitoring the operation parameters of the blade server based on a command from the master management subsystem. The blade server management system of the present invention has high system reliability and stability as well as a simple routing design while reducing the complexity of system design.

The invention comprises: a switching unit and at least two switch control units. Said switching unit comprises a switching module with at least two uplink ports respectively connected to the root multiplexer of the control units. Said switch control units are used to control said switching module to turn on or turn off.

The invention provides a low-cost timing and synchronization method of a GPS receiver, and a device thereof, and relates to the timing and synchronization field, in particular to the low-cost timing and synchronization field which is realized at a baseband processing chip level based on the GPS such as a US GPS. A timing and synchronization method based on the GPS is improved, and the method and the device are realized based on a baseband processing chip device of the GPS. A crystal oscillator is subject to a soft calibration by coordinated universal time which is worked out by the GPS, an external device is timed by combining a time code and a synchronization pulse signal, and high-precision timing can be realized by the low-cost crystal oscillator. The method and the device help calibrate the crystal oscillator without hardware, which greatly simplifies the system design and reduces the cost. The device has the advantages of low hardware overhead, strong expandability, high reliability and the like.

The invention discloses a portable fluorescence quantitative PCR detector, and belongs to the fields of biology and medical detection. The detector comprises an optical excitation unit, an optical detection unit, and a temperature control unit. The optical excitation unit comprises a plurality of light sources, an exciting light optical filter, and a holophote. The temperature control unit comprises a reaction tank, a heat cover, a heating/refrigerating sheet, a heat dissipating part, and a temperature control circuit. The optical detection unit comprises a plurality of light splitting sheets, an optical filter, an imaging sensor, and a detection circuit. The light given off by the light source goes through the exciting light optical filter and then is converted into exciting light with a specific wavelength; then the exciting light is reflected by the holophote and is projected into a PCR tube to excite the fluorescence substances in the reagent, thus the fluorescence substances will give off light, part of the light goes though the hole in the side surface of the reaction tank and enters the optical detection unit, the light is split and filtered in the optical detection unit, and finally the light form an image on the corresponding image sensor.

Disclosed is an optical sensing device including a source unit providing a beam of light with continuously modulated phase retardation between p- and s-polarization components of the light by employing a LCM; a reference unit receiving a first part of the light to provide a reference signal; a SPR sensing unit receiving a second part of the light to induce a phase retardation change between the p- and s-polarization components due to SPR associated with a sample; a probe unit receiving the light after SPR to provide a probe signal; and a detection unit connected to the reference unit and the probe unit to detect characteristics of the sample by comparing the reference signal with the probe signal. By using active phase modulation technologies and differential phase measurement, it is possible to fulfill chemical and biological detection.

The present invention discloses a method for simultaneously detecting egg size, egg form index and egg weight. It is characterized by that said invention adopts an egg image analysis and processing method to attain the goal of simultaneously detecting egg size, egg form index and egg weight. Said invention also provides the concrete steps for implementing said method and also provides the concrete requirements for implementing every step.

Electronic crash sensor system for a vehicle including at least one inertial measurement device arranged on the vehicle to measure an inertial property of the vehicle, a processor that incorporates or executes a crash sensing algorithm that determines whether the vehicle is sensing a crash based on the inertial property measured by each inertial measurement device and a positioning system arranged on the vehicle to provide its position. The inertial property measured by each inertial measurement device is modified based on the position and then provided to the crash sensing algorithm such that the crash sensing algorithm determines whether the vehicle is sensing a crash based on the modified inertial property measured by each inertial measurement device. Self-testing of each inertial measurement device is not performed.

The invention discloses a method for realizing interprocess synchronization communication and an agent unit. The method comprises the following steps: the agent unit receives a first request message from a first process, and blocks the first process; the agent unit constructs a second request message according to the first request message and then sends the second request message to the second process; the agent unit receives a first response message returning from the second process, and recovers identification information according to the private data information carried by the first response message; the agent unit constructs a second response message according to the first response message and sends the second response message to the first process; and the agent unit relieves block onthe first process. According to the technical scheme provided by the invention, the mutual transformation between interprocess synchronization communication and asynchronization communication can be realized, thereby being convenient for maintenance.

A testing apparatus comprises a tester comprising a plurality of racks, wherein each rack comprises a plurality of slots, wherein each slot comprises: (a) an interface board affixed in a slot of a rack, wherein the interface board comprises test circuitry and a plurality of sockets, each socket operable to receive a device under test (DUT); and (b) a carrier comprising an array of DUTs, wherein the carrier is operable to displace into the slot of the rack, and wherein each DUT in the array of DUTs aligns with a respective socket of the plurality of sockets on the interface board. The testing apparatus further comprises a pick-and-place mechanism for loading the array of DUTs into the carrier and an elevator for transporting the carrier to the slot of the rack.

The invention discloses a line voltage compensation circuit used for LED drive. The circuit comprises a line voltage sampling unit, a compensation voltage generation unit, an inductance peak current sampling resistor, an adder unit, a comparator unit and a control and drive unit, wherein the line voltage sampling unit is used for sampling bus voltage of an LED constant current drive circuit, the compensation voltage generation unit is used for generating a compensation voltage value needed by the LED constant current drive circuit under the corresponding bus voltage, the inductance peak current sampling resistor is used for sampling peak currents of an inductor, the adder unit is used for adding the voltage value of peak current sampling resistance of the LED constant current drive circuit and the compensation voltage value generated by the compensation voltage generation unit, the comparator unit is used for generating an outage signal enabling a power switch tube to be shut down, and the control and drive unit is used for driving the power switch tube and carrying out constant current control on the whole LED constant current drive circuit. The line voltage compensation circuit omits line voltage compensation resistance in the traditional technology, and improves anti-interference performance and reliability of a system.

The invention discloses a brain-computer interface system based on clinic brain-electrical signal control machine hand movement. The brain-computer interface system comprises a signal collection module, a brain-electrical signal feature extraction and decoding module, a machine hand control module and a peripheral module, wherein the signal collection module is used for pretreating collected clinic brain-electrical signals and inputting the pretreated signals into the brain-electrical signal feature extraction and decoding module; the brain-electrical signal feature extraction and decoding module is used for extracting the features of the pretreated brain-electrical signals; the machine hand control module is used for classifying the features of the pretreated brain-electrical signals and sending classification labels to machine hands to complete gesture movement; and the peripheral module is used for supervising and feeding back a task executed by the machine hands. The invention also discloses an application method of the brain-computer interface system. High-precision online machine hand gesture control can be realized by utilizing the clinic cortical brain-electrical signals with relatively high temporal-spatial resolution and small invasion degree.

The invention provides a switch electrical source inductance current control technique which uses an intelligent closing time controller to adjust closing time of a power switch automatically for controlling the current in the inductance opening time, an input end of the intelligent closing time controller connects with a leakage end of the power switch, an output end of the intelligent closing time controller connects with an enable pin of a drive unit, uses the current size in the inductance opening time for controlling the closing time of the inductance, controls the current in the inductance opening time in an appointed value. The technique provided by the invention has advantages that: the technique can control the current in the power switch opening time, and control the current in the power switch closing time; a current detecting resistance only flows the current in the power opening time for increasing the system efficiency; a control mechanism does not connect with the input voltage that can improve the input voltage application range of the system, reduce cost, and compensate infection of the input voltage to an average current, make the LBD keeping constant brightness in various input voltage.

The invention discloses an IEEE (Institute of Electrical and Electronics Engineers)-1394b optical bus protocol converter based on a Versa PHY (Physical Layer), which comprises a photoelectric conversion module, an IEEE 1394 protocol module and a central processing module, wherein the photoelectric conversion module is used for converting data received from an IEEE 1394 optical bus into an electrical signal and sending the electrical signal to the IEEE 1394 protocol module and is used for converting data received from the IEEE 1394 protocol module into an optical signal and sending the optical signal onto the IEEE 1394 optical bus; the IEEE 1394 protocol module is used for sending the electrical signal sent by the photoelectric conversion module after conversion by an IEEE 1394 protocol to the central processing module and is used for sending data sent by the central processing module after conversion by the IEEE 1394 protocol to the photoelectric conversion module; and the central processing module is used for sending the data sent by the IEEE 1394 protocol module after conversion by a Versa PHY protocol and is used for sending the received data after conversion by the Versa PHY protocol to the IEEE 1394 protocol module. According to the IEEE-1394b optical bus protocol converter based on the Versa PHY, the system design is simplified, the cost is saved, the power consumption is reduced and the real-time performance of protocol conversion is increased.

The invention discloses a TWS (true wireless stereo) earphone pairing method and a TWS earphone. The TWS earphone pairing method comprises the following steps: a main earphone and an auxiliary earphone are respectively provided with a communication interface; the main earphone and the auxiliary earphone are physically connected through the communication interfaces; the main earphone and the auxiliary earphone interact with Bluetooth addresses through the communication interfaces and store the Bluetooth addresses; and when a TWS earphone is normally used, the main earphone and the auxiliary earphone are subjected to Bluetooth pairing according to the stored Bluetooth addresses of the opposite side. According to the method in the invention, a physical connection mode is adopted for interaction of the Bluetooth addresses between the left earphone and the right earphone and completion of the pairing function between the left earphone and the right earphone without the need of participationof a third-party platform, and the system is simple in design and low in cost. Moreover, by adoption of the TWS earphone pairing method in the invention, the complexity of earphone pairing operationcan be reduced, and the quickness, reliability and stability of pairing between the left earphone and the right earphone are improved. When one earphone is lost, only one new earphone needs to be purchased to be matched with the earphone which is not lost for normal use, thereby reducing the purchasing cost of users and avoiding resource waste.

The invention provides an energy safeguard design method for an inertial space observation satellite. The energy safeguard design method comprises the following steps: (1) determining an inertial space observation satellite body coordinate system and a fixed sun-facing surface according to a satellite basic configuration and a solar wing mounting direction; (2) designing an attitude control algorithm on the basis of a fixed sun alignment surface, and minimizing an included angle between a solar vector and a vertical plane of a sailboard mounting shaft in a single observation process on the premise of ensuring observation direction and observation coverage required by observation; (3) designing a solar wing tracking algorithm according to the change rule of solar vectors based on an attitude control algorithm design result, so that the whole satellite obtains the maximum energy in the whole observation process; And (4) judging whether the energy design requirement is met by the satellites in the whole observation process or not, if so, ending, and otherwise, re-executing the steps (1)-(4). Excellent solar cell illumination conditions can be provided for the satellite system, the design difficulty of the satellite energy system is reduced, and energy supply of the whole satellite is ensured.

Apparatus for producing nano-particles includes a furnace defining a vapor region therein. A precipitation conduit having an inlet end and an outlet end is positioned with respect to the furnace so that the inlet end is open to the vapor region. A quench fluid supply apparatus supplies quench fluid in a gas state and quench fluid in a liquid state. A quench fluid port positioned within the precipitation conduit is fluidically connected to the quench fluid supply apparatus so that an inlet to the quench fluid port receives quench fluid in the gas state and quench fluid in the liquid state. The quench fluid port provides a quench fluid stream to the precipitation conduit to precipitate nano-particles within the precipitation conduit. A product collection apparatus connected to the outlet end of the precipitation conduit collects nano-particles produced within the precipitation conduit.

The invention relates to an anti-theft method of a bicycle. The bicycle comprises a bicycle control panel connected to a lock of the bicycle and a remote control system; the bicycle control panel and the remote control system form an information interaction communication network through a signal reception analysis device; and the bicycle control panel is provided with a card swiping device, an alarm controller, a buzzer controlled by the alarm controller and a GPS (Global Positioning System) positioning device. The anti-theft method of the bicycle has the following advantages: (1) an electric signal control system is used in the invention; (2) the information interaction communication network is formed as the alarm controller is connected to the remote control system; (3) the single mechanical anti-theft method of using the bicycle lock traditionally is changed as the card swiping riding way is adopted; and (4) the comprehensive and effective monitoring purpose is realized as the bicycle can feed the condition of the bicycle to the remote control system at any time.

The invention provides a device for wirelessly monitoring contact temperature of a high-voltage switch cabinet, which comprises a temperature collecting mechanism, a temperature processing mechanism and a PC (Personal Computer) display terminal; the temperature collecting mechanism has multiple paths which are respectively installed in a contact area of the high-voltage switch cabinet to be monitored; a signal output end of the temperature collecting mechanism is in wireless connection with a signal input end of the temperature processing mechanism; and the signal input end of the temperature processing mechanism is in wired connection with the PC terminal. The device for wirelessly monitoring the contact temperature of the high-voltage switch cabinet provided by the invention is capable of satisfying wireless real-time monitoring on the contact temperature of a high-voltage switch by users, and alarming and prompting under a fault state; furthermore, the device is simple in design, easy for implementation, short in development cycle and low cost; services for medium and small enterprises can be well increased; and the device is more beneficial to being popularized.

A method for controlling a climate control system is disclosed. In one example, the climate control system includes an air mixing valve that is adjusted in response to a energy conversion device load demand. The method may provide improved climate control in a vehicle cabin during high energy conversion device load conditions.

An ultraviolet light single-photon detector with a built-in negative feedback metal-semiconductor-metal structure comprises a substrate, a buffer layer, a n-type semiconductor, an interdigital film resistor, an anode electrode and an interdigital electrode from bottom to top, wherein the buffer layer can grow on the substrate, the n-type semiconductor is arranged on the substrate or the buffer layer, the interdigital film resistor is arranged on the n-type semiconductor, anode electrode position forms the anode electrode on the film resistor, and the interdigital electrode is arranged on the uppermost layer. A cathode electrode and the n-type semiconductor form schottky junction, and the anode electrode is deposited on the film resistor. The ultraviolet light single-photon detector with the built-in negative feedback metal-semiconductor-metal structure solves problems of difficulty in process control and expensive cost caused by complex process flow of ultraviolet light single-photon detectors with a p-n structure and a p-i-n structure.

A testing apparatus comprises a tester comprising a plurality of racks, wherein each rack comprises a plurality of slots, wherein each slot comprises: (a) an interface board affixed in a slot of a rack, wherein the interface board comprises test circuitry and a plurality of sockets, each socket operable to receive a device under test (DUT); and (b) a carrier comprising an array of DUTs, wherein the carrier is operable to displace into the slot of the rack; and (c) an array of POP memory devices, wherein each POP memory device is disposed adjacent to a respective DUT in the array of DUTs. Further, the testing apparatus comprises a pick-and-place mechanism for loading the array of DUTs into the carrier and an elevator for transporting the carrier to the slot of the rack.

The invention belongs to the technical field of numerical control cutting machines and particularly discloses a control system for a numerical control cutting machine. The control system comprises an ARM processor module, a storage module, a power module, a human-computer interaction module, a communication interface module, a digital to analog (D/A) conversion module, a complex programmable logic device/field programmable gate array (CPLD/FPGA) module and an input output module. An embedded system based on an ARM processor and a muC/OS-II is adopted, and real-time performance, stability and reliability of the numerical control cutting machine are improved.

The invention discloses an FCT test system with multiple test stations controlled by one computer. The FCT test system comprises the computer, n test stations, a communication gathering and distributing device, a router, a code scanning station, a circuit board motion control device and an OK/NG board receiver. The control method of the FCT test system comprises the following steps: S1, detecting a to-be-tested circuit board; s2, issuing a code scanning instruction; s3, uploading a code scanning instruction; s4, judging whether code scanning succeeds or not; s5, transmitting the circuit board and preparing for testing; s6, judging whether the program is downloaded or not; s7, judging whether the program is successfully downloaded or not; s8, testing the circuit board; and S9, receiving the qualified circuit board. According to the testing system and method, multiple computers do not need to be operated at the same time, only one computer needs to be operated, only one upper computer program runs on one computer, the system design is simplified, the hardware cost is reduced, meanwhile, the operation process is simplified, and the error probability of operators is reduced.

The invention discloses a stepless control system and control method for part edge grinding. The stepless control system involves an execution module, a gas processing module and a servo feedback module; and a zero position, a grinding force numerical value and a threshold value of grinding displacement of the execution module are set in the servo feedback module, the gas processing module drivesthe execution module to execute the grinding action, and the servo feedback module collects grinding signals for feedback adjustment, so that stability and accuracy of the grinding process are guaranteed. According to the stepless control system and control method for part edge grinding, the system design is greatly simplified, the response speed of the grinding process is increased, and steplesscontrol over grinding is achieved.

The invention discloses an automatic sorting method and a system. The automatic sorting method and the system are used for automatic unloading of cargos on a transportation unit at an unloading stall.The automatic sorting method comprises following steps: cargo information of the transportation unit is obtained; based on the acquired cargo information, the information of a pre-set stall is searched so as to obtain target unloading stall information corresponding to the cargo information, and the target unloading stall information is sent to the transportation unit; wireless communication between the transportation unit and the unloading stall is carried out through controlling to obtain the target unloading stall information and address information of a plurality of unloading stalls; andan executing mechanism is controlled to realize automatic unloading of the cargos at the target unloading stall when the acquired target unloading stall information is consist to the address information of the unloading stalls. The automatic sorting method is capable of realizing independent calculation and unloading of each transportation unit based on receive information, the unloading instructions are generated independently and are controlled, so that unloading efficiency is increased greatly, and system damage rate is reduced.

The invention relates to a bus current limiting control method and device for an automotive brushless direct current motor. The method mainly comprises the following steps that: a main control chip receives current signals processed by a conditioning and filtering unit and performs PI compensation control according to a set current limiting value, an allowed maximum duty cycle for avoiding current exceeding the limit value is figured out and is compared with the duty cycle of driving willing, the allowed duty cycle takes a minimum value, and a PWM (Pulse-Width Modulation) control signal corresponding to the minimum duty cycle is output to an inverter driving motor according to the value. The device comprises a current detecting module, a signal filtering module, a main control chip and an inverter which are connected with one another in sequence, wherein the current detecting module and the inverter are all connected with the brushless direct current motor, the current detecting module is used for collecting bus current, and the inverter is used for driving the brushless direct current motor. Compared with the prior art, the method and the device are easy to implement and low in cost, can effectively solve the problem of overheating of the motor, and cannot influencing the driving of a driver under normal conditions.

The invention discloses a storing method of controlled system and data and program, which is characterized by the following: comprising controlled chip and externally hung FLASH memory; connecting the controlled chip to the FLASH memory; storing the data and the program of the controlled system in the different sector of the FLASH memory. This invention also discloses a storing method of data and program of the controlled system, which comprises the following steps: a, writing the data and program of the controlled system into the FLASH memory; storing the data and program in different sector; b, activating read/write register of the FLASH memory with the controlled chip; realizing read/writer operation. This invention can simplify system designing, producing and conditioning flow process of the electronic device.

Fuel cells are very well suited for the cogeneration of power and heat. An adaptation of the fuel cell power to the thermal requirement of the live load results in faulty adaptations and efficiency losses if the thermal requirement fluctuates significantly.

The invention aims to achieve a continuous and lossless adaptation of the thermal production of the fuel cell to the current thermal requirement.

The invention utilizes the fact that fuel cells are continuously adjustable over a broad load range. The invention proposes a continuous control of the current based on the supply or return temperature of the thermal circuit. According to the invention, a control method is used that has a quasi-continuous characteristic, particularly a control according to a PID-algorithm with additional limitation of the current as a control variable with respect to the minimum and the maximum value and of the amount of the time rate of change of the current. Such a control allows the fastest possible adaptation of the cell power to the respective thermal requirement.

The invention discloses a pressure-differential controlled air supply outlet, which is provided with an air outlet shutter at an air outlet. The pressure-differential controlled air supply outlet is characterized in that an air supply channel on the back of the air outlet shutter is provided with an electric actuator, the electric actuator is connected with a connecting rod moving along the vertical motion by a connecting arm, the connecting rod is pivoted with a plurality of connecting arms at a certain interval, and a regulating valve is fixed on the other ends of the connecting arms; and the electric actuator is also equipped with a pressure differential sensor for converting pressure differential signals into electrical signals and then transmitting the electrical signals to the electric actuator. The pressure-differential controlled air supply outlet disclosed by the invention replaces the existing positive-pressure intensity control methods such as excessive pressure valves or fan bypasses and the like in the existing pressurized air supply system for civil buildings; and by using the pressure-differential controlled air supply outlet, the system design is simplified and the cost is saved while the requirements on normative design are satisfied.