533 results about "Universal asynchronous receiver/transmitter" patented technology

The present invention provides a network controller that directs communications with a variety of remote devices via a common bus. The network controller includes a transmitter for transmitting messages via the common bus, and a receiver for receiving messages from the common bus. Additionally, the network controller includes a clock for providing clock signals to both the transmitter and receiver. The transmitter and receiver are selected such that the network controller is capable of selectively operating in either synchronous or asynchronous mode. In operation, the network controller is configured in either a Manchester encoding or a Universal Asynchronous Receiver Transmitter (UART) protocol. The transmitter transmits messages comprising a command and an address of at least one remote device. In one embodiment, the transmitter simultaneously transmits messages to a plurality of remote devices in accordance with a group address comprised of a multiple bits with each bit associated with a respective group.

The invention relates to a phased array radar antenna beam control device. The phased array radar antenna beam control device comprises a remote control PC (Personal Computer) computer, a user control computer module, a power supply management module, a FPGA (Field Programmable Gate Array) chip, a signal driver, a wave control conversion circuit and a controlled device which is electrically connected with the wave control conversion circuit, wherein the user control computer module remotely communicates with the remote control PC computer and are electrically connected with the FPGA chip, thepower supply management module and the wave control conversion circuit, respectively. The FPGA chip is embedded with a PowerPC hardcore and used for constructing an embedded computer; the embedded computer also comprises an Ethernet (Media Access Control), a UART (Universal Asynchronous Receiver Transmitter) controller, a DDR2SDRAM (Double Data Rate 2 Synchronous Dynamic Random Access Memory) memory module, a FLASH controller module, a parallel controller, a FPGA configuration circuit module and a clock generating circuit module. The phased array radar antenna beam control device provided by the invention has the advantage of high reliability.

The invention provides a household security system which comprises a home gateway, sensors and a zigbee wireless transceiver, wherein the zigbee wireless transceiver is used for providing information interchange between the sensors and the home gateway; the home gateway comprises a central processor and further comprises a camera interface for connecting a camera, a UART (Universal Asynchronous Receiver / Transmitter) serial port interface, an Ethernet interface, an SPI (Single Program Initiation) interface, an LCD (Liquid Crystal Display) interface and an I / O (Input / Output) interface which are arranged on the central processor; the central processor comprises a master chip s3c6410 based on an ARM11 framework and a peripheral circuit; the camera interface is a USB (Universal Serial Bus) interface capable of connecting a USB camera; the UART serial port interface is connected to a MC35iGSM module; the I / O interface is connected to a voice alarm; and the sensors comprise a fire detector, an antitheft detector and a gas detector. A complex wiring process for mounting the household security system is omitted, thereby realizing multi-point and remote transmission of security information, promoting safety and reliability as well as hidden performance of the household security system, and lowering the cost.

The invention discloses a method for controlling a portable router to work in low power consumption mode and a portable router, which belong to the field of communication. When an application processor (AP) of the portable router meets dormant conditions, a Modem module and a wireless fidelity (WIFI) module are instructed to enter a dormant state, a universal serial bus (USB) connected with the Modem module on the side of the AP enters a free mode, a universal asynchronous receiver / transmitter (UART) of the AP is hung up, the AP and the WIFI module enter a dormant state, the AP enters the dormant state, and control of low power consumption work of the portable router with double chips of the AP and the Modem module is finished. The effect of saving battery energy is achieved, and service life of the portable router with the double chips is prolonged.

A contactless integrated circuit (IC) card can include: an analog interface block operable to demodulate a received radio frequency (RF) signal into multiple versions thereof according to a first plurality of communication protocols, respectively; a controller operable to select from among a second plurality of communication protocols; and a universal asynchronous receiver / transmitter (UART) operable to select one of the demodulated versions of the RF signal according to the selected protocol

The invention relates to a modular generation method for a multi-waveform radar signal, which belongs to the technical field of radar frequency synthesis and is applied to the design of a direct digital frequency synthesis (DDS)-based frequency synthesizer. A multi-waveform radar signal module consists of modular software, a field programmable gate array (FPGA) and DDS chips. The modular software comprises a man-machine interactive interface and a modular serial port timing module, wherein the man-machine interactive interface performs relevant operation and storage of control parameters and waveform data of the DDS chips and performs data communication with the FPGA; and the modular serial port timing module generates modular serial port control timing which is suitable for the DDS series chips and completes data acquisition and updating by computer communication. The FPGA is provided with a random-access memory (RAM), a universal asynchronous receiver / transmitter (UART) and a DDS control module, and realizes the functions of data communication with a computer and the storage of the control parameters and waveform data of the DDS chips and DDS chip control. The DDS chips output various signals set by the parameters under the control of the FPGA. The modular software developed by the method configures different DDS chips, so various radar signals of point frequency, linear frequency modulation, nonlinear frequency modulation and phase encoding can be generated, and the software supports on-line programming and the real-time updating of the control parameters and waveform data of the DDS chips.

The invention relates to an airborne distributed inertial attitude measurement system and a transfer alignment method of the airborne distributed inertial attitude measurement system. The airborne distributed inertial attitude measurement system comprises a master inertial navigation system, a main control computer, and six slave inertial navigation systems connected with the main control computer, wherein each slave inertial navigation system respectively comprises an inertial measurement unit and an attitude measurement processing board, each inertial measurement unit is connected with an RS_422 interface of the corresponding attitude measurement processing board, each RS_422 interface is connected with an FPGA (Field Programmable Gate Array) chip through a UART (Universal Asynchronous Receiver / Transmitter) control chip, each FPGA chip is connected with a DSP (Digital Signal Processor) chip through an EMIF (External Memory Interface) bus and also connected with the master inertial navigation system through a CAN (Control Area Network) controller and a CAN transceiver, and the main control computer is connected with the master inertial navigation system. The transfer alignment method between the master inertial navigation system and each slave inertial navigation system of the airborne distributed inertial attitude measurement system comprises the steps of: by taking the speed information error and the attitude information error of the master inertial navigation system and the slave inertial navigation systems as measuring variables, correcting speed information and attitude information calculated by the slave inertial navigation systems after carrying out Kalman filtering iteration, and finally obtaining stable and accurate navigation attitude information.

Methods and systems for a video surveillance system are provided. The system includes a plurality of network buses, a plurality of surveillance sensors, control devices, and sensor data storage devices and a keypad controller communicatively coupled to the at least one network bus. The keypad controller includes a plurality of interchangeable control modules communicatively coupled to said keypad controller that matingly engage a complementary portion of said keypad controller. The keypad controller further includes a processor configured to decode codec independent video streams, said processor further comprising a module configured to receive and transmit streaming video data to a network, a synchronous memory interface, and a plurality of universal asynchronous receiver / transmitter (UARTs). The keypad controller also includes a universal serial bus (USB) interface.

The embodiment of the invention provides a signal conversion device and method as well as communication equipment. The signal conversion device comprises an LPC (Low Pin Count) bus interface unit, a register configuration unit and a UART (Universal Asynchronous Receiver Transmitter) unit, wherein the LPC bus interface unit is used for performing protocol analysis on signals from an LPC bus and outputting local signals through a local bus, and the local signals comprise a control signal, an address signal and a data signal; the register configuration unit is used for configuring registers of the UART unit according to the local signals; the registers of the UART unit are allocated in a memory address space and an I / O address space; and the UART unit is used for converting data from the LPCbus into serial data according to the local signals and the values of configured registers of the UART unit and then outputting the serial data through a UART interface or outputting the serial data received by the UART interface to the LPC bus through the local signals. The embodiment of the invention can simplify the configuration process of the registers of the USRT unit.

The invention provides a UART (universal asynchronous receiver / transmitter)-based master-slave multi-processor communication system and method. The system is characterized by comprising a master processor, n slave processors and a communication bus, wherein n is a positive integer equal or greater than 1, a TX port, a RX port and an IO port of the master processor are respectively connected to the communication bus through circuits, the TX port, the RX port and the IO port of each of the slave processors are respectively connected to the communication bus through the circuits. The RX port and the TX port of the master processor and the RX port and the TX port of the slave processor are connected to the same communication bus, so that the wiring between the devices and the mutual interference of the signals are reduced. Furthermore, the extra appliance is unnecessary to add in the system, the cost is low, the design period is short, and the system can be extensively applied to the communication among multiple devices in short distance.

The invention discloses communication equipment for achieving out-of-band monitoring and management, which comprises a micro processing unit and a managed board card consisting of at least one switch fuse unit and at least one line processing unit, wherein the micro processing unit comprises an FPGA (Field Programmable Gate Array); each managed board card comprises a singlechip; the FPGA of the micro processing unit is connected with a CPU (Central Processing Unit) of the micro processing unit by an expanded local bus, connected with the singlechip of each managed board card by simulating UART (Universal Asynchronous Receiver / Transmitter) buses with the corresponding quantity, and used for receiving a management command from the CPU of the micro processing unit through the local bus, forwarding the management command to the singlechips of the corresponding managed board cards through the UART buses, receiving management response commands from the singlechips of the managed board cards through the UART buses, and sending the management response commands to the CPU of the micro processing unit; and the singlechips of the managed board cards are used for receiving the management commands from the FPGA of the micro processing unit through UART interfaces, and sending the management response commands to the FPGA of the micro processing unit through the UART interfaces. The invention further discloses a method for achieving the out-of-band monitoring and management and a master-slave switching method. The communication equipment, the method and the master-slave switching method can effectively improve the data forwarding efficiency.

The invention relates to a comprehensive feedback type pulmonary rehabilitation assessment treatment instrument. The instrument comprises a central processor (100), a UART (universal asynchronous receiver / transmitter), a switching power supply (102), a thoracoabdominal breathing movement sensor (103), a vital capacity sensor (104), a blood oxygen saturation degree sensor (105), a surface myoelectricity sensor (106), a heart rate sensor (107), an inspiratory muscle force sensor (108), a signal generation module (116), a signal amplification module (113), an abdominal muscle stimulation electrode (109), a phrenic nerve stimulation electrode (110), a voice playing module (111), a WIFI (wireless fidelity) transceiving module (112), an ultrasonic positioning module (114), an oxygen consumption detection module (115), a man-machine interaction module (117) and a data storage module (118). The sensors of the instrument are used for monitoring various indexes including breathing, circulation, myoelectricity and the like respectively; the sensors are independently or unitedly used for various feedback treatment and also sequential low-frequency current stimulation on phrenic nerves on the neck and abdominal muscles, and a patient is trained to master correct and effective breathing movement. Various data are displayed and processed synchronously in real time, so that man-machine interaction is more convenient and more efficient.

The invention is applied to the technical field of upgrading, and provides a method and a system for upgrading a fitting by virtue of a mobile terminal, and the mobile terminal. The mobile terminal comprises a CPU (central processing unit) and a changeover switch connected with the CPU, wherein an OTG (On-The-Go) adapter connected with the mobile terminal or the D+ / D- of a USB (universal serial bus) connected with the mobile terminal is connected with the i2c / uart (inter-integrated circuit / universal asynchronous receiver / transmitter) of the CPU through the changeover switch. The method comprises the following steps that the firmware of the fitting is stored in the mobile terminal; the mobile terminal establishes connection with the fitting; the mobile terminal transmits the firmware to the fitting through the OTG adapter and the D+ / D- of the USB connected with the OTG adapter according to an i2c / uart protocol; or the mobile terminal transmits the firmware to the fitting through the D+ / D- of the USB according to the i2c / uart protocol. According to the method, the system and the mobile terminal, if a serious bug appears or the fitting is subsequently required to be added with a new function after the fitting is released, the firmware can be locally upgraded by a user by virtue of the mobile terminal, the fitting is not required to be returned to a manufacturer, and the mobile terminal is simple and portable.

A modified universal asynchronous receiver transmitter (UART) device is provided with an auxiliary high speed parallel channel using supplementary FIFO buffers for the exchange of data. The auxiliary parallel channel is separate from the normal lower speed serial channel which is retained in unmodified form. The retained serial channel provides full compatibility with and support for the National Semiconductor 16550 standard, while the auxiliary parallel channel allows for rapid transfer of large data blocks, such as is needed for a PCMCIA wireless data card for example. The key advantages of this approach lie both in the data transfer speed and in the reduced amount of development time needed to implement a UART interface for communicating between a host computer and a new subsystem. This is because all the UART functions, except large volume data transfer, can be carried out over the standard serial channel using standard device drivers.

The invention relates to a novel portable PLC (Programmable Logic Controller) programming device which comprises a main control module, a storage module, a power management module, a communication interface module, a human-computer interface module and a CAN (Control Area Network) interface module, wherein the system carries out multitask and communication management on the basis of the main control module and edits, processes, monitors and debugs a PLC user program; the power management module realizes power selection; the storage module stores system and user programs, data and dynamic running space; the communication interface module extends UART (Universal Asynchronous Receiver / Transmitter) and USB interfaces; the human-computer interface module provides an interactive interface; the CAN interface module programming device can be connected with any CAN node to access to CAN field bus; and the main control module is connected with the rest five modules respectively, the power management module and the communication interface module are respectively connected with a PLC main computer, and the communication interface module is connected with an upper computer. The novel portable PLC programming device can work in an off-line state, directly communicates with the upper computer and debugs, operates and monitors the user program of the PLC main computer.

A keyboard-video-mouse (KVM) system is disclosed. The KVM system comprises a module, a KVM switch and a signal cable. The module transmits a single-ended video signal from a computer, converts a universal asynchronous receiver / transmitter (UART) signal to an input / output (IO) signal, and transmits the IO signal to the computer. The KVM switch receives the single-ended video signal from the module and outputs the UART signal to the module. The signal cable transmits the single-ended video signal from the module to the KVM switch and transmits the UART signal from the KVM switch to the first module.

A mobile device for supporting universal asynchronous receiver / transmitter (UART) communication and universal serial bus (USB) communication using a single connector and a method thereof are provided. The mobile device includes a USB connector, a USB module selectively connected with the connector to communicate with an external USB device, at least one internal UART device selectively connected with the connector to communicate with an external UART device, a determiner configured to determine whether the connector has been coupled to the external USB device or the external UART device based on a signal applied to at least one of pins of the connector, a switching unit configured to selectively connect data lines of the connector to one among the USB module and the at least one internal UART module based on a determination result of the determiner, and a central processing unit (CPU) configured to control the switching unit, thereby automatically switching the data lines of the connector to an appropriate internal module according to whether a device coupled to the connector is a USB device or a UART device.

Disclosed herein are an integrated gateway for a distributed home network and a software framework structure for the same. The integrated gateway includes an input / output interface unit (110), an Internet gateway unit (120), a telephone network interface / unit (130), a microprocessor (140), a control unit (150), a Universal Asynchronous Receiver / Transmitter (UART) (160), and a memory unit (170). The input / output interface unit (110) communicates with the home appliances. The Internet gateway unit (120) is connected to the Internet. The telephone network interface unit (130) is connected to the PSTN. The microprocessor (140) processes data transmitted and received through the Internet gateway unit (120) and a telephone network interface unit (130). The control unit (150) informs the microprocessor of interrupts and outputs control signals for controlling the transmission and reception of data according to the interrupts. The UART (160) controls the transmission and reception of data between the microprocessor (140) and the input / output interface unit (110)in response to the control signals. The memory unit (170) stores log information about the currently set status of devices and the transmission and reception of data.

A system and a method for virtual serial port management include setting a virtual universal asynchronous receiver / transmitter (VUART) and a software multiplexer (MUX) and setting the VUART to perform functions corresponding to different values of the software MUX. The method further includes receiving commands sent to the server regularly and assigning a first predetermined value to the software MUX when the received command is not an Intelligent platform management interface (IPMI) command. The management method further includes assigning a second predetermined value to the software MUX when the received command is the IPMI command but not a serial over LAN (SOL) command, and assigning a third predetermined value to the software MUX when the received command is the SOL command.

The invention relates to a handheld satellite communication terminal and a method for guiding a user to align an antenna with a satellite by using the same. The terminal comprises a main control chip, a satellite communication functional block, external equipment, display equipment, a global positioning system (GPS) positioning module, a magnetic field sensor and an acceleration transducer, wherein the satellite communication functional block and the external equipment are connected with the main control chip through a control interface and a data interface respectively; the display equipmentis connected with the main control chip through a display interface; the GPS positioning module is connected with the main control chip through a universal asynchronous receiver / transmitter (UART) interface; the magnetic field sensor is connected with the main control chip through an I2C interface; and the acceleration transducer is connected with the main control chip through a serial peripheralinterface (SPI). In the method, directions to which the satellite and the antenna point are calculated in real time and displayed on a terminal display interface in the form of icon and the user can be guided to conveniently, rapidly, vividly and correctly point the antenna to the direction of the satellite, so that a good communication effect is obtained when the satellite communication terminalis in field application and the problem of inconvenient operation (a large number of auxiliary equipment, time-consuming calculation and an undefined antenna direction) during alignment of the antenna with the defined satellite position of the satellite by a ground satellite communication terminal is solved.

The invention discloses an interface system for a USB key, a switching method, a USB key and a UART (Universal Asynchronous Receiver / Transmitter) terminal. The interface system for the USB key comprises a USB key circuit and a terminal interface circuit connected with the USB key circuit, wherein the terminal interface circuit comprises a USB interface circuit or a UART interface circuit; the USB key circuit comprises a USB key interface of which an ID pin is connected with a GND pin of the USB key interface through a resistor R1; and an ID pin of the UART interface circuit is connected with a VCC pin of the UART interface circuit. The benefit that the interface mode is quickly switched according to judgment to the ID pin of the USB key interface is achieved, and as for the USB key powered by a built-in battery, the interface mode can be automatically switched according to the difference of connected terminal equipment in the non-stop state.

The invention relates to an EV-based (electric vehicle based) battery management method and system, comprising: initializing a system clock, input IO, output IO, SPI (serial peripheral interface) communication, Uart (universal asynchronous receiver / transmitter) communication and an AD (analog-digital) interface; configuring an AFE (analog front end) through an SPI; reading a power-up estimated voltage, a power-up estimated current, a power-up estimated temperature and a power-up estimated power quantity of each battery pack; judging whether the power-up estimated voltages, the power-up estimated currents, the power-up estimated temperatures and the power-up estimated power quantities are within a preset threshold range or not; if yes, acquiring battery pack data regularly, carrying out balance control and battery protection control on the battery pack data and calculating battery remaining capacity; if not, transmitting a corresponding control signal to an MOS (metal oxide semiconductor) transistor according to a battery fault state of the battery pack data.

The invention relates to the field of communications and discloses an online tracking method and device of user equipment states. The device comprises a voltage sensing unit, a current sensing unit, a data collection unit, a data storage unit, a statistical analysis unit, an online tracking kernel (comprising a status recognition and tracking unit and a CPU (central processing unit)), an UART (universal asynchronous receiver / transmitter) debug port and a human-machine interface. The device tracks user equipment states online and processes signals; processed signals are tracked by means of iterative frequency scanning; sensing measuring devices and communication devices are integrated, state tracking signal processing is adopted, and online load running state can be tracked and recognized without large-scale wire removable, power outage and production halt; a WIA wireless communication unit is used for field collection; the online tracking method and device has the advantages such as low cost and convenience in deployment.

The invention relates to a processing method for transmitting and receiving UART (universal asynchronous receiver / transmitter) communication interface data through software simulation in an embedded system. The method for achieving a plurality of UART communication interfaces through software simulation, provided in the invention, comprises a data receiving method and a data transmitting method, wherein baud rate timing is accurately achieved by a timer interruption function of a timer, and both transmitting and receiving are performed under the control of timer interruption. In the invention, for simulating one UART communication interface, only one timer, two I / O (input / output) ports and one software interrupt are required. For simulating a plurality of UART communication interfaces, the timer and the software interrupt are shared. Therefore, once one UART communication interface is added and expanded, only two I / O ports are required to be added. According to the invention, UART communication interfaces can be achieved through software simulation.

The invention relates to a special ASIC (Application Specific Integrated Circuit) chip system for spaceflight. The special ASIC chip system comprises a MIPS (Million Instructions Per Second) nucleus, a PCI (Programmable Communications Interface) bus interface, an ISA (Internet Security And Acceleration) bus interface, a 1553B bus terminal interface, a 1553B protocol processor, a network interface, a CAN (Controller Area Network) interface, an EMI (External Memory Interface), AD acquisition control logic, OC door control logic, UART (Universal Asynchronous Receiver / Transmitter) serial port, PWM (Pulse Width Modulation) interface, a pulse counter PPC, PCM (Pulse Code Modulation) telemetry remote control module and a general input / output module, wherein the MIPS nucleus, the PCI bus interface, the ISA bus interface, the 1553B bus terminal interface, the 1553B protocol processor, a network interface, the CAN interface and the EMI are connected to an AMBA AXI (Advanced Microcontroller Bus Architecture Advanced eXtensible Interface) bus; and the AD acquisition control logic, the OC door control logic, the UART serial port, the PWM interface, the pulse counter PPC, the PCM telemetry remote control module and the general input / output module are connected to an AMBA APB (All Points Bulletin) bus; and the AMBA AXI bus is connected with the AMBA APB bus through an AXI / APB bridge.

The invention relates to an automobile combined meter having an automobile electric control diagnosis function and a diagnosis method thereof. The automobile combined meter comprises a central controller, a meter interface, a plurality of multifunctional indication step motors electrically connected with the central controller respectively, a meter illumination indicator lamp, a safety status indicator lamp, multifunctional indicator lamps, multi-fault indicator lamps, a display screen, a clock chip, a storage, a voice prompt module, a key processing circuit, a power module electrically connected with the meter interface, a plurality of input signal processing circuits electrically connected with the central control unit and the meter interface respectively and an automobile electric control diagnosis interface circuit, wherein a controller area network (CAN) bus interface and a universal asynchronous receiver / transmitter (UART) interface are arranged on the central control unit. When the automobile combined meter used, the meter interface is electrically connected with the electric control unit of the automobile to be diagnosed, and the central controller is connected with the automobile electric control diagnosis interface circuit through the CAN bus interface or the UART interface and then communicates with the the electric control unit of the automobile to be diagnosed through the meter interface. Having the automobile electric control diagnosis function, the automobile combined meter can prompt the fault of the automobile and make the fault point clear so as to prompt drivers to maintain the automobile better.

The present invention provides a steering engine control device of small-type unmanned vehicle. The circuit mechanism is the connection of a singlechip and a complex programable logic device, the singlechip connects a host link unit via a Serial Peripheral Interface or a Universal Asynchronous Receiver Transmitter, the CPLD is connected with a receiver, steering engine control signal output by CPLD is connected to the steering engine via a low pass filter. The invention reduces the design complexity of the system, and enhances the late modify signal performance of the system. The aim of the modifying system only needs modifying softer of the system, but not modifies hardware of the system. The invention adopts a modularization design, high credibility, simple testing and lower cost.

The invention relates to the technical field of wireless data terminals and discloses a terminal and a method for acquiring power utilization information. The terminal comprises a universal asynchronous receiver / transmitter (UART) expansion module, a main processor, a memory module and a radio frequency module, wherein the UART expansion module is used for acquiring power utilization information data of power consumer equipment; the main processor is connected with the UART expansion module through a bus and used for acquiring the power utilization information data acquired by the UART expansion module and processing the power utilization information data; the memory module is connected with the main processor through the bus and used for storing the electricity utilization data which is processed by the main processor; and the radio frequency module is connected with the main processor through a digital interface and used for transmitting the power utilization information data processed by the main processor to a main station through a broadband wireless network, receiving a command from the main station and sending the command to the main processor so as to allow the main processor to perform operation corresponding to the command. Due to the adoption of the terminal and the method, the access of an acquiring terminal to the broadband wireless network can be realized.