37results about How to "Increase the baud rate" patented technology

An Internet access system includes a wireless local area network having wireless access points and a rental control station connected to the wireless local area network, the rental control station including a network access script generator for generating a network access script, a network access database, and a data input unit, and a wireless station adapter synchronizable to communicate with the access point after having been automatically installed and configured in a communication device by the network access script.

Simple, inexpensive, general-purpose devices and methods achieve simultaneous, full-duplex and bi-directional communication of analog, digital or audio signals across a single conductor. “Sifudu” transceivers, which stands for “simultaneous and full-duplex,” reduce the number of cables necessary for transferring information between two or more terminals at a given rate, and / or facilitate information transfer at a higher rate than traditional circuits across the same number of cables. The transceivers can accomodate both digital and analog signals of arbitrary polarity. Since a sifudu circuit is capable of transmitting analog signals, it is also capable of transmitting digital signals in frequency, phase, or amplitude shift keyed form, thus opening the possibility of realizing higher baud rate than other simultaneous bidirectional communication systems that transfer digital data only, one bit at a time in each direction. The system not only allows one terminal to talk to more than one other terminals at a time, since there is no designated master or slave, any terminal can take on the role of the transmitter or the receiver, or both any time. The transceivers can also be connected into a multi-terminal network configurations including chain, star, tree, woods topologies, alone or in combination.

The invention discloses an FPGA-based enhanced serial port and working method thereof. The FPGA (Field Programmable Gate Array) is taken as hardware, and the serial port is constructed in the FPGA by using an HDL language; the Baud rate, check mode, data length and the like of the serial port are conveniently and quickly configured by an external program, and the serial port automatically receives and sends data; the size of a cache for transceiving the data only depends on the scale of the FPGA; and a plurality of serial ports can be generated by multiplexing through simple operation, and the processing time and hardware resource of a main program are not occupied. For the main program, it is similar to operation on an external storage, so the main program is freed from the frequently interruption or query operation, the running efficiency of the main program is improved, the stability of the system is improved and the transplantability and the expandability of software are improved.

The invention relates to a network, in particular a PA PROFIBUS network having redundant properties and a linear topology. Two line ends are connected to a redundancy manager which disconnects said line ends in error-free conditions and connects them in error conditions. Said redundancy manager supplies voltage to the first line end for operating customers' mobile telephones each of which is connected to the network by a branching unit. After receiving a supply voltage on one connection thereof, said branching units check the state of a cable which is connected to the other network connection and transmit the supply voltage in the faultless condition thereof only. When the redundancy manager does not detect the supply voltage on the other end of the line end at least during a predetermined space of time after voltage supply, said redundancy manager supplies the voltage thereto. A cable having a disturbance is then disconnected from the line by the adjacent branching units.

The invention relates to the mobile communication field, in particular to a method for realizing communication by mobile terminal integrated Bluetooth technology. A method for communication of a mobile terminal and Bluetooth thereof comprises the following steps: the mobile terminal receives operating instructions input by a user and Bluetooth control commands and command data corresponding to the operating instructions are determined; the Bluetooth control commands and command data are encapsulated into data packets and then are sent to a Bluetooth communication chip at the mobile terminal; and the Bluetooth communication chip executes corresponding operation or sends wireless data to opposite-end equipment according to the received command data packets. As the Bluetooth control commands and command data corresponding to the operating instructions are encapsulated into data packets according to an open source Bluetooth protocol and then are sent to the Bluetooth communication chip, thus being capable of controlling the Bluetooth communication chip to execute corresponding operation, sending wireless data to the opposite-end equipment, and realizing Bluetooth communication with lower cost, namely reducing the cost of realizing the mobile terminal of the Bluetooth communication.

Simple, inexpensive, general-purpose devices and methods achieve simultaneous, full-duplex and bi-directional communication of analog, digital or audio signals across a single conductor. “Sifudu” transceivers, which stands for “simultaneous and full-duplex,” reduce the number of cables necessary for transferring information between two or more terminals at a given rate, and / or facilitate information transfer at a higher rate than traditional circuits across the same number of cables. The transceivers can accommodate both digital and analog signals of arbitrary polarity. Since a sifudu circuit is capable of transmitting analog signals, it is also capable of transmitting digital signals in frequency, phase, or amplitude shift keyed form, thus opening the possibility of realizing higher baud rate than other simultaneous bidirectional communication systems that transfer digital data only, one bit at a time in each direction. The transceivers can be connected into a multi-terminal network configurations including chain, star, tree, woods topologies, alone or in combination.

The present invention relates to telemetry apparatus and methods, and more particularly to acoustic telemetry apparatus and methods used in the oil and gas industry. More specifically, the invention relates to a method for enhancing a received signal transmitted by acoustic telemetry through a drill string by modifying the received signal by a multiplication of the received signal with a second waveform.

The invention discloses a feedback type UART adaptive Baud rate system and an adaptive Baud rate method, and relates to a UART adaptive Baud rate system and a Baud rate method. The invention aims to solve the problems that the Baud rate change initiated by a slave is generally ignored in the conventional adaptive matching mode, and actually, the Baud rate of a bus also needs to be adjusted due tothe limitation of subsequent storage space by the slave. The system comprises a host sending module, a host receiving module, a slave sending module and a slave receiving module, wherein the host andthe slave share one UART bus; the host sending module is used for sending to-be-sent information to the receiving modules of the slaves; the host receiving module is used for receiving feedback information of the slave; the slave sending module is used for sending the Baud rate information applied by the slave to the receiving module of the host; and the slave receiving module is used for receiving the data information transmitted by the host sending module. The method is applied to the field of UART communication.

Analog signals encoded with quadrature amplitude modulation (QAM) pass through a coaxial cable at a particular baud rate. These signals have a carrier frequency individual to the TV station being received. They are mixed with signals from a variable frequency oscillator to produce signals at a particular intermediate frequency (IF). An analog-digital converter (ADC) converts the IF signals to corresponding digital signals which are demodulated to produce two digital signals having a quadrature phase relationship. After being filtered and derotated, the digital signals pass to a symmetrical equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) connected to the FFE in a feedback relationship. The DFE may include a slicer providing amplitude approximations of increasing sensitivity at progressive times. Additional slicers in the equalizer combine the FFE and DFE outputs to provide the output data without any of the coaxial cable noise or distortions. The equalizer outputs and initially the derotation outputs, and the slicer outputs, servo (1) the oscillator frequency to obtain the IF frequency, (2) the ADC sampling clock to obtain the digital conversion at a rate related to the particular baud rate and (3) the derotator. The servos may have (1) first constants initially after a change in the station selection and (2) second time constants thereafter. The ADC gain is also servoed (1) initially in every ADC conversion and (2) subsequently in every nth ADC conversion where n=integer>1. The above recover the QAM data without any of the coaxial cable noise or distortions.

The invention discloses a high-frequency power amplifying circuit, which consists of modulator and power amplifier, wherein the modulator includes signal amplification circuit, add circuit and drive circuit; the power amplifier consists of first stage amplifying circuit and secondary amplifying circuit; the secondary amplifying circuit has high-frequency choke which adopts magnet ring with manganese- zinc or nickel- zinc material. The invention improves the envelope rise and descent rate of final export radiofrequency signal.

The invention relates to a baud rate self-adaption method and device, computer equipment and a readable storage medium. The method comprises the steps: monitoring a CAN FD bus, and measuring the time interval between adjacent level change edges in an adaptive message sent by a reference ECU to the CAN FD bus within a preset measurement time period, wherein an ID field of the adaptive message comprises a preset number of continuous and identical logic bits; determining a minimum time interval and a maximum time interval from the time intervals, obtaining a Baud rate of a data domain of the CAN FD network message according to the minimum time interval, and obtaining a Baud rate of a target domain of the CAN FD network message according to the maximum time interval; and setting network configuration parameters of the target ECU according to the baud rate of the data domain and the baud rate of the target domain, so that the target ECU and the reference ECU transmit the CAN FD network message through the CAN FD bus. By adopting the method, the Baud rate adaptive efficiency of the ECU on the CAN FD bus can be improved.

The invention discloses a software adaptive Baud rate method for a serial port. A sender repeatedly sends predetermined data at intervals by one Baud rate firstly; if a receiver does not receive the predetermined data within a period of time, the receiver switches one Baud rate and continues to wait for receiving the predetermined data within a period of time until the receiver receives the predetermined data within a period of time; a handshaking signal is returned to finish adaptive Baud rate synchronization; and the sender and receiver communicate by using a fixed synchronized Baud rate.

The chip includes eight modules: oscillating circuit, timer, address process, main control, register of command word, data receiving module, data transmitting module, and data buffer. Advantages of the invention are: extending serial port from hardware, designed highest baud rate suitable to needs of general system, less system resources utilized, configurable communication formats and compatible to standard serial port communication format.

The invention provides a single-line communication circuit, comprising a data sending circuit; the data sending circuit comprises a level conversion module and a push-pull output module; the level conversion module is used for receiving input signals of a first input end and control signals of a control end, performing level conversion on the input signals according to the control signals, and transmitting the signals after the level conversion to the push-pull output module; the push-pull output module is used for receiving the signals after the level conversion and transmitting the signals to the output end, and the push-pull output module comprises a third transistor and a fourth transistor in push-pull connection. The single-line communication circuit has the advantages of strong drive capability, long transmission distance, high baud rate and strong anti-interference capability.

A power line communication system and method permit auto-commissioning of multiple device control modules on a DC power line during the power up of the system. Device control modules associated with the peripheral devices are powered up sequentially and a unique address is assigned to each device controller when it is powered up. The device control modules have a unique circuit configuration that allows the use of inexpensive and mostly passive components. The cost effectiveness of the device controller design becomes particularly significant in applications, such as multi-panel OLED lighting fixtures, with high node counts.

The invention discloses an intelligent vehicle dynamic reconfigurable network system and a network scheduling method.The system comprises a central computing unit, a chassis domain controller, an entertainment domain controller, an intelligent driving domain controller and a vehicle body domain controller, and the central computing unit is connected with the chassis domain controller, the entertainment domain controller, the intelligent driving domain controller and the vehicle body domain controller through a network; the chassis domain controller, the entertainment domain controller, the intelligent driving domain controller and the vehicle body domain controller respectively comprise a plurality of intra-domain ECUs and are respectively connected with the plurality of intra-domain ECUs through a network. The network nodes in the network system are dynamically activated or standby, the vehicle network topology structure is changed in real time, waste of network resources caused by invalid information transmission is avoided from the source, and therefore the utilization rate of the network resources is increased; the basic period of reconfigurable network scheduling, the sampling period of the domain controller and the Baud rate of intra-domain information transmission are dynamically changed, and then the real-time performance of network messages and the high utilization rate of network bandwidth under the full working condition of the intelligent vehicle are achieved.

The invention discloses a double-shaft motor driving system based on dual-core processing. The system comprises an upper computer, two servo motors and a server driver, wherein the upper computer is used for transmitting a motion command; the servo driver comprises a dual-core DSP with two CPUs, the dual-core DSP is in communication with the upper computer through a CAN bus, the dual-core DSP is used for receiving the motion command sent by the upper computer, the CPUs and the servo motors establish communication in a one-to-one correspondence mode, the CPUs are used for controlling the servomotors to operate according to the motion command and obtaining feedback data of encoders of the servo motor, and single-shaft operation control or double-shaft alternate operation control or double-shaft synchronous operation control over the two servo motors is achieved through the two CPUs. According to the invention, the motion control strategy is flexible and diverse, the synchronous controlprecision of the system can be improved, the dynamic response capability and the data transmission capability are high, and the reliability of the system can be improved.

The invention relates to the field of test and verification. Aiming at the need to capture and analyze all the data in the interaction process under abnormal interaction in communication between a contactless smart card and a contactless card reader, a contactless smart card communication protocol analysis device is presented. The contactless smart card communication protocol analysis device includes a low-coupling high-frequency antenna, a card reader data analysis module, a card data analysis module, a card reader sent data baud rate monitoring module, an embedded processor and a PC displaymodule. By using the device, interaction data can be captured in the process of interaction between a contactless smart card and a contactless card reader without affecting the communication state, and thus, support is provided for the rapid and efficient analysis of abnormal interaction.

The invention relates to a network with redundancy and linear topology, in particular to a process automation fieldbus network (PROFIBUS PA-Netzwerk). The two line ends (E1, E2) are connected to a redundancy manager (RM). Under normal circumstances, the redundancy manager (RM) separates the two line ends (E1, E2). In the event of a failure, the two line ends (E1, E2) are separated. connected to the line ends (E1, E2). The redundancy manager (RM) will provide a voltage input to a first line end (E1), this voltage is used to drive the movement of subscribers connected to the network (11) through a branch unit (T1-T4) respectively. Telephone (F1-F4). After receiving a voltage on one of its network interfaces, the tributary units (T1-T4) detect the status of the cables (H1-H5) connected to the other network interfaces and only continue to transmit voltage under normal circumstances. If the redundancy manager (RM) does not detect the voltage at the other line end (E2) at least within a specified period of time after power supply, the redundancy manager supplies this voltage. The cable (H2) has a fault location (12) that is disconnected from the line by the branch units (T1-T3).

The chip includes eight modules: oscillating circuit, timer, address process, main control, register of command word, data receiving module, data transmitting module, and data buffer. Advantages of the invention are: extending serial port from hardware, designed highest baud rate suitable to needs of general system, less system resources utilized, configurable communication formats and compatible to standard serial port communication format.

The invention provides an asynchronous serial port switching method and system based on an FPGA, and relates to the technical field of control, and the method comprises the following steps: S1, receiving cache control of serial port message data; S2, after caching the serial port message data, performing three-level caching of merging and splitting on the serial port message data according to a system state machine; and S3, sending the serial port message data to the communication interface of the corresponding subsystem according to the configuration address. According to the invention, data exchange among the systems can be accurately realized in real time according to functions required by data exchange among the systems, and the asynchronous serial communication problem of a complex system is solved.

The invention discloses a remote control device and control method for a new energy vehicle. The device comprises a power module, a microprocessor module, a 4G communication module, a signal acquisition module, a communication module, a low side driving module and an external bus; the low voltage output end of the power module is connected with the 4G communication module; the high voltage output end of the power module is connected with the microprocessor module; the microprocessor module is provided with a first data wire interface; the 4G communication module is provided with a second data wire interface; information is exchanged between the first data wire interface and the second data wire interface; the PWM output end of the microprocessor module is connected with the PWM input end of the low side driving module; the CAN interface of the microprocessor module is connected with the RCAN port and TCAN port of the communication module; and the CANH port and the CANL port are connected with the external bus. The control device and method can realize massive data transmission.

The embodiment of the invention discloses a drive control method, device and system, electronic equipment and a storage medium, the drive control method, device and system are applied to controlled equipment, the controlled equipment is connected with an upper computer through a microsecond bus, and the method comprises the steps that parameter configuration information of all function modules, related to drive control, of the controlled equipment is acquired from the upper computer through an array instruction of the microsecond bus; and configuring the corresponding function module according to the parameter configuration information of each function module so as to realize driving control. According to the embodiment of the invention, a communication mode of the microsecond bus is adopted, the controlled equipment is connected with the upper computer through the microsecond bus, and then driving control is realized by utilizing mutual communication among the modules according to parameter configuration of the modules.

A dynamic reconfigurable network system and network scheduling method for an intelligent vehicle, the system includes a central computing unit, a chassis domain controller, an entertainment domain controller, an intelligent driving domain controller, and a vehicle body domain controller, the central computing unit and the chassis domain controller The chassis domain controller, entertainment domain controller, smart driving domain controller, and body domain controller respectively include multiple ECUs in the domain and are respectively connected to each other through the network. Connect with multiple ECUs in the domain through the network. By dynamically activating or standby network nodes in the network system, the topology of the vehicle network can be changed in real time, and the waste of network resources caused by invalid information transmission can be avoided from the source, thereby improving the utilization of network resources; dynamic changes can reconfigure the basic network scheduling Period, the sampling period of the domain controller and the baud rate of information transmission in the domain, so as to realize the real-time network information and high utilization rate of network bandwidth under all working conditions of intelligent vehicles.

The invention provides a serial communication system, a serial communication method and an intelligent door lock. The serial communication system comprises first equipment, second equipment and third equipment, the first device at least has a first serial port, the second device at least has a second serial port, and the third device at least has a third serial port, wherein the sending end of the first serial port is connected with the receiving end of the second serial port and the receiving end of the third serial port through a first bus, so that the first equipment sends data to the second equipment and / or the third equipment; the receiving end of the first serial port is connected with the sending end of the second serial port and the sending end of the third serial port through a second bus, so that the first equipment receives data sent by the second equipment and / or the third equipment. According to the serial port communication system provided by the invention, the cost of hardware such as an extended chip does not need to be increased, the circuit layout is simplified under the condition of reducing the number of serial ports, and the difficulty of the circuit layout is reduced.