91 results about "Manchester code" patented technology

The invention relates to the technical field of power system safety monitoring, in particular to a power transmission line online safety monitoring method, system and device based on quantum communication and a storage medium. The multi-modal fusion sensor synchronously collects multi-parameter electric signal data such as current, voltage and temperature of the power transmission line, and performs quantum encryption instantaneous recording on the data; based on quantum encryption instantaneous record extraction data, a deep learning adaptive Kalman filtering algorithm is combined with a neural network to predict the operation state of the power transmission line; generating a new Manchester code according to the multi-parameter electric signal data and the operation state predicted value, and encrypting by adopting quantum key distribution to generate a ciphertext; and transmitting the ciphertext to a client based on a terahertz communication channel, decrypting and recovering the data through the quantum key, and carrying out safety early warning. Theoretically uncracked data security assurance is realized by using the unclonable characteristic of the quantum state, high-rate data transmission is realized by terahertz communication, and the transformation from passive monitoring to active early warning is realized by a prediction algorithm.

The invention provides a chirp modulation-based downlink wake-up receiver implementation method and system, and the method comprises the steps: S1, transmitting a preset wake-up frame to achieve the synchronization with terminal equipment before a transmitter of a wake-up receiver transmits a data frame, the wake-up frame comprises a pure carrier of a preset frequency, a lead code, and a terminal device address sequence and a data sequence based on Manchester encoding; s2, the transmitter generates a baseband signal conforming to a radio frequency front-end mode of the receiver through the wake-up frame, and the baseband signal is subjected to up-conversion and then transmitted in a 433MHz frequency band; and S3, the terminal equipment monitors a channel at any time, demodulates the wake-up frame through envelope detection and intermediate frequency amplification, demodulates a data frame, and finally synchronously sends a wake-up signal and data obtained through demodulation to a post-stage circuit. According to the invention, by designing the wake-up sequence and manufacturing the wake-up circuit, asynchronous wake-up with ultra-low power consumption is realized for the Internet of Things terminal equipment.

The present application discloses a data decoding method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring the clock rate of a single-channel clock; on the basis of the clock rate of the single-channel clock, sampling, at rising edges and falling edges of the single-channel clock, a data stream formed using Manchester encoding, and obtaining a plurality of pieces of sampling data; and decoding each piece of sampling data, and obtaining decoded data of the data stream. According to the data decoding method provided by embodiments of the present application, clock resources required to be occupied when the Manchester-encoded data is decoded can be reduced while improving the decoding efficiency.

The invention discloses a DALI (Digital Addressable Lighting Interface) data frame decoding method for Manchester encoding, which solves the problems of poor universality and high bit error rate caused by a fixed clock in the traditional method. The method comprises the following steps: receiving a DALI frame containing a start bit, a data bit and a stop bit; identifying a start bit, measuring the low level length of the start bit for multiple times, taking extreme values Tmax and Tmin, and checking the ratio (1lt; tmax / Tminlt, Tmax / Tminlt; 1 + n) and then T = (Tmax + Tmin) / 2 is calculated; setting two judgment intervals [T-nT, T + nT) and [2T-nT, 2T + nT) (0lt; nlt; 0.5) judging that the duration of the adjacent jump edge is T or 2T; counting edge overturning times in a 2T window from the middle moment of a data bit, keeping a logic value unchanged in two times, and performing negation in one time; and a stop position is detected through 4T in a non-jump manner. Through dynamic time sequence calibration and adaptive decoding, the decoding reliability in a complex environment is improved, the bit error rate is reduced, and the stability and universality of data transmission of the intelligent lighting system are enhanced.

The invention provides a power transmission line icing detection method and system, and relates to the technical field of intelligent control, and the method comprises the steps: eliminating the transmission interference of an optimization processing signal through a Manchester encoding protocol and a local cache verification algorithm in a channel switching process, and obtaining a clean transmission signal; and inputting the clean transmission signal into a pre-trained deep convolutional neural network, extracting ice layer space attributes through a plurality of convolutional layers and pooling layers, performing feature fusion through a full connection layer, calculating ice layer thickness distribution, identifying ice layer categories through a softmax classifier, and identifying the ice layer categories based on a thickness distribution diagram and an ice layer category identification result. And generating a detection result containing the ice layer thickness value and the spatial distribution attribute. According to the method, regional accurate analysis can be realized, and local feature omission caused by traditional overall analysis is avoided.

The invention relates to a CAN bus control type PS I5 transceiver module which comprises a main control module, a communication interface is composed of a CAN communication module and a serial port, the CAN communication module is used for communicating with other equipment, and the main control module is connected with an upper computer through the serial port for communication; the power supply module reduces the direct-current 12V voltage to the working voltage of the single chip microcomputer to supply power to the main control module; the PS I 5 transceiver chip is respectively connected with the sensor and the main control module, and is used for receiving a Manchester encoding electric signal of a PS I 5 bus and sending an electric signal conforming to the PS I 5 standard to the sensor; the master control module is used for receiving and storing sensor data corresponding to different states and events. Compared with the prior art, CAN and serial communication are combined with a power-down storage state flag bit, so that the equipment can be compatible with a plurality of pieces of equipment for coordinating work. The non-PS I5 production equipment can be refitted into PS I5 sensor production equipment as long as the non-PS I5 production equipment is provided with a CAN communication interface, reading, configuration, analysis and diagnosis of a PS I5 sensor can be carried out, and the production link of the PS I5 sensor is effectively supported.

The invention relates to a Manchester coded signal decoding method and a Manchester coded signal decoding system, and belongs to the field of electronic information, communication and power system automation. A plurality of clocks with the same frequency and different phases are generated according to Manchester encoding signals, the clocks are used for sampling the signals, a phase-shifting clock sampling method is used, dependence on a high-frequency clock is reduced, most interference in communication signals is determined to be eliminated according to a majority voting strategy for sampling results, and the accuracy of the signals is improved. And the seriously distorted signals are corrected according to special value enumeration, so that the interference of signal duty ratio distortion and burrs is reduced, and the decoding reliability is further improved. And finally, determining an original data stream of the signal according to the two level states of each code element. The method is used for decoding high-speed and ultra-high-speed Manchester encoding signals under the conditions of no high-frequency clock, poor data signal quality or unstable clock, and simultaneously realizing self-adaptive communication of different encoding formats.

A device may receive signaling that includes a preamble having a first subset of bits of the set of bits and a payload having a second subset of bits. In some examples, the second subset of bits may be encoded according to a Manchester encoding scheme. The second subset of bits may include fewer bits than the first subset of bits. In some examples, less than a threshold quantity of bits of the first subset of bits includes a same bit value, and each bit of the threshold quantity of bits is consecutive. The device may detect the preamble of the received signaling, and decode the payload of the received signaling including the second subset of bits (e.g., Manchester encoded subset of bits) in response to the detected preamble of the received signaling.

The invention discloses an airborne universal serial communication bus receiving board card based on a MiniVPX architecture, and relates to the technical field of avionics testing. The problems of function solidification, framework limitation and the like generally existing in existing serial communication acquisition board cards and commercially available general products are solved. According to the board card, an FPGA (Field Programmable Gate Array) is adopted as a core controller, an RS-232 / 485 / 422 multi-protocol interface circuit module, an isolation power supply module and a PCIe (Peripheral Component Interconnect Express) high-speed communication module are integrated, and 77 * 110 * 11.5 mm compact packaging is realized through a MiniVPX standard. Three working modes are innovatively supported: a synchronous word / gaptime screening mechanism is provided in a UART (Universal Asynchronous Receiver / Transmitter) mode, NRZ and Manchester multi-code adaptive decoding is realized in a PCM (Pulse Code Modulation) mode, and self-defined frame format configuration is supported in a Manchester code signal mode with a synchronous head. The method is also suitable for the technical field of space constraint and high-density integration of avionics equipment.

A device may receive signaling that includes a preamble having a first subset of bits of the set of bits and a payload having a second subset of bits. In some examples, the second subset of bits may be encoded according to a Manchester encoding scheme. The second subset of bits may include fewer bits than the first subset of bits. In some examples, less than a threshold quantity of bits of the first subset of bits includes a same bit value, and each bit of the threshold quantity of bits is consecutive. The device may detect the preamble of the received signaling, and decode the payload of the received signaling including the second subset of bits (e.g., Manchester encoded subset of bits) in response to the detected preamble of the received signaling.

Systems and methods for controlling valve actuators are provided. The system includes an interface circuit in electrical communication with a wiring connection from a pool / spa control system, and a processor in communication with the interface circuit. The interface circuit extracts a plurality of encoded bits transmitted to the interface circuit from the pool / spa control system over the wiring connection. The plurality of encoded bits could include Manchester-encoded bits that are encoded by the pool / spa control system by altering signals transmitted to the interface circuit over the wiring connection. The processor receives the plurality of encoded bits from the interface circuit and processes the plurality of encoded bits into a control command for controlling operation of the valve actuator. When a valid control command has been generated, the processor executes the control command to operate the valve actuator in accordance with the control command.

The invention belongs to the technical field of Internet of Things equipment production, discloses a photoelectric information transmission system and method based on pulse width modulation, realizes reliable transmission of equipment identification information through an LED optical signal of IoT equipment, and solves the problem of use limitation of traditional wired / wireless communication in a sealed equipment or complex production line environment. In the scheme, a coding transmitting end of IoT equipment converts equipment identification information into a binary data frame, a synchronization head is inserted into a head, and then each bit is coded to drive an LED lamp to form an optical signal sequence; a decoding receiving end receives the optical signal sequence, converts the optical signal sequence into an analog electric signal, amplifies and shapes the analog electric signal, triggers a dynamic decoding mechanism based on a synchronous head, restores a binary data frame according to a Manchester encoding rule, verifies data integrity through a CRC check bit, and extracts equipment identification information; and finally, converting the decoded equipment identification information into a USB signal and transmitting the USB signal to production testing software.

The invention relates to the technical field of PSI5 interfaces, and discloses a PSI5 interface circuit, which comprises a current-to-voltage unit, a switch unit, a threshold voltage generation unit, a comparator COMP and a logic control unit, during normal use, the current-to-voltage conversion unit, the threshold voltage generation unit, the comparator COMP and the logic control unit correctly convert sensor Manchester encoding current data conforming to a PSI5 protocol range, namely current flowing through the switch unit, into digital signals, and the digital signals are output signals of the comparator COMP; on the basis, after an open circuit or short circuit fault is removed, the output end of the comparator COMP may output a high-level signal for a long time, and at the moment, the logic control unit controls the threshold voltage output by the threshold voltage generation unit, so that the output end of the comparator COMP outputs a low-level signal; normal tracking of current and self-recovery of data are realized.

The application provides an LED display control system and method, and relates to the technical field of LED display, and comprises the following steps: a daisy chain topology structure is formed by directly connecting a sending device and multiple receiving devices through a DP cable; an auxiliary signal interface circuit is arranged in the sending device and each receiving device; an AC coupling connection structure is adopted between the auxiliary signal interface circuit and an auxiliary channel differential line pair, and pull-up and pull-down resistors configured in a standard DP interface are removed; the system is configured to transmit auxiliary signals in the daisy chain topology structure by using the auxiliary channel differential line pair, and a Manchester coding mode is adopted when the auxiliary signals are transmitted, so that a transmission rate of greater than or equal to 100 Mbps can be supported. The technical scheme of the application achieves the effects of simplifying wiring and improving backhaul efficiency.

The invention discloses a Manchester code receiving and storing method and system, and the method comprises the steps: firstly converting a serial data signal of a Manchester code into a parallel signal, and carrying out the decoding of the serial signal, enabling the decoding operation to be isolated from a clock signal, weakening the dependence on the clock synchronization in a decoding process, and improving the decoding efficiency. The method is suitable for a scene that a serial signal does not have accurate synchronous clock input, a high-order address of a storage address is defined by judging packet header data, a low-order address of the storage address is determined by packet length, different packet header data are stored in corresponding addresses, classification and address division storage of received data frames according to packet header information is realized, and the storage efficiency is improved. The method can be applied to various bus transmission data protocols, is suitable for various FPGA development, and has good universality and application prospects.

The application belongs to the field of chip interconnection communication, and particularly discloses a chip interconnection communication method and system based on Manchester coding, which comprises the following steps: a master control device generates and sends a communication frame, the physical layer of which adopts Manchester coding, logic 1 is high-to-low transition, and logic 0 is low-to-high transition, and the frame start / end is defined by a specific high-low level sequence; the data link layer of the communication frame comprises a synchronization code, an address field, a control field, a data field and an end code, the control field comprises pin intervals and quantity identification, and a clock is sent simultaneously to synchronize the slave device; the slave device decodes the received signal, determines the target pin range according to the identification when the address is matched, and sets the pin level according to the data field. The application improves the communication rate and efficiency, simplifies the wiring, and adapts to the chip interconnection requirements in multiple scenes.

The application discloses a tire monitoring method, comprising: in a first running state of a vehicle, detecting tire data by using a first detection frequency corresponding to the first running state; and sending the tire data to the vehicle by using a first sending frequency corresponding to the first running state based on a preset protocol, wherein an encoding mode of the preset protocol is differential Manchester encoding, and a check mode is CRC16. The application also discloses a tire monitoring system, equipment and a storage medium. The application realizes tire monitoring of the vehicle by transmitting vehicle tire data through a communication protocol comprising a specific encoding mode and a check mode, so that the tire data is not easy to be cracked in the transmission process, the anti-interference and intelligence of the tire data are improved, the power consumption is reduced, and the efficiency and accuracy of the tire data transmission are improved.

The invention provides a cloth paving machine edge alignment method and system, electronic equipment and a medium, and the method comprises the steps: transmitting Manchester encoded pulse waves to a sensor array, and receiving a plurality of level signals fed back by the sensor array; acquiring pulse information according to the level signal, wherein the pulse information comprises the pulse length, the number and the position of a corresponding sensor; and analyzing and processing the pulse information to obtain the position and the inclination angle of the cloth. According to the cloth paving machine edge alignment method, the accurate position and the inclination angle of the cloth can be automatically obtained, and real-time control over the cloth paving machine in the cloth paving process is facilitated.

The present disclosure relates generally to an interface between a host processor device and a peripheral device, such as a camera or sensor, and, more particularly, to improving the generation of data signals with embedded clock information to be more rate-flexible and power efficient. Improved techniques are described herein to embed a clock signal into a data signal (e.g., to minimize the number of channels needed)—while allowing for a variable link rate and avoiding the need for a phase lock loop (PLL) and / or long link training times at the receiver, which can consume large amounts of power and on-chip area. In some embodiments, a modified Manchester encoding scheme, e.g., using a fixed delay for its mid-bit transitions (and wherein the delay is independent of link rate), is used to achieve the dual aims of rate flexibility and power efficiency for an improved data signal interface with embedded clock information.

A control panel for a fire alarm system includes a microprocessor operable to send and receive data. The microprocessor has a serial peripheral interface with a master port and a slave port. A computing device has a Differential Manchester encoder configured to encode data received from the master port and a Differential Manchester decoder configured to decode frames and send the decoded data to the slave port. A method of sending and receiving data is also disclosed.

The invention discloses a differential Manchester encoding generation method and system of an operational amplifier in the field of electronic circuits, and aims to solve the technical problems that a traditional special protocol chip is high in cost and single in adaptive bus standard, and overall replacement is needed for fault maintenance. The method includes: generating a single binary digital logic signal by a digital logic device; inputting the single binary digital logic signal into a pre-stage operational amplifier circuit, and outputting a single-ended three-state analog signal; inputting the single-ended three-state analog signal into a post-stage inverting operational amplifier circuit to generate an inverted analog signal symmetrical to the single-ended three-state analog signal; and combining the single-ended three-state analog signal and the reverse analog signal to obtain a differential Manchester coded signal. According to the method, the cost can be remarkably reduced, and the protocol adaptation flexibility, the hardware compatibility and the system expansibility are improved.

Methods, systems, and devices for wireless communications are described. A first wireless device may generate a signal in accordance with a Manchester coding scheme, such that the signal alternates between a first chip value and a second chip value. The first wireless device may flip a first start or end value of the signal at a first segment of the signal based on a comparison of the first start and end values of the signal within the first segment, or based on a comparison of the first start or end values of the signal to respective start and end values of one or more neighboring segments. The first wireless device may then append a cyclic prefix and transmit the signal to a second wireless device, which may identify and de-flip the flipped chip values based on an observed pattern in the received signal associated with the Manchester coding scheme.

The application discloses a Manchester decoding method and device and a battery management system applying the same. The Manchester decoding method comprises the following steps: obtaining a reference pulse width according to a synchronization code in Manchester coding; obtaining each first pulse width and each second pulse width according to data codes in the Manchester coding, wherein the first pulse width and the second pulse width are respectively used for representing the width between adjacent rising edges and the width between adjacent falling edges in the data codes; comparing the first pulse width and the second pulse width with the reference pulse width; and when the first pulse width or the second pulse width is greater than the reference pulse width, judging that the logic of two adjacent code elements corresponding to the first pulse width or the second pulse width is different, so as to decode the data codes. The Manchester decoding method in the application can well deal with the pulse width distortion of the signal received by the receiving end under the application condition of long-distance isolated communication, and the error code rate is small.

Methods, systems, and devices for wireless communications are described in which a configuration of a wake-up signal (WUS), synchronization signal (SS), or both, may be selected based on one or more conditions at a user equipment (UE) that is to receive the signal. The configuration of the WUS, the SS, or both, may indicate a value (M) that corresponds to a quantity of bits per duration of time, such as per orthogonal frequency division multiplexing (OFDM) symbol duration. The configuration may also indicate whether an associated signal is transmitted with or without Manchester coding. In some implementations, a UE may transmit an indication of a requested or preferred configuration for a WUS or SS, and may be configured in accordance with the requested configuration.

The invention discloses a multi-rate controllable 1553 bus controller module, which belongs to the field of avionics and data buses and comprises a 1553 protocol processing module, a Manchester encoder, a Manchester decoder, a sending channel, a receiving channel and an internal clock management unit. The internal clock management unit generates a core clock signal corresponding to a target communication rate according to a signal input by the external rate control pin; and the Manchester encoder / decoder performs data encoding and decoding by using the core clock signal, so that the adjustable switching of the communication rate among 1Mbps, 2Mbps and 4Mbps is realized. Flexible configuration of the communication rate is achieved through hardware pin control, the problems that a traditional 1553 controller is fixed in rate and lack of flexibility are solved, and the controller has the advantages of being high in compatibility, low in cost and high in integration degree.

This invention relates to the field of DC power supply and lighting control technology, specifically to a communication method and protocol for DC lighting. It utilizes a rapid output voltage adjustment mechanism within the DC lighting control cabinet, switching between high and low voltages to transmit signals. The high level represents the standard DC bus voltage, while the low level represents the standard voltage reduced by 10V. Manchester encoding is used to encode and transmit information between the high and low levels, ensuring the bus voltage remains high during normal system operation. This invention defines a complete communication frame structure, including a start bit, function code, mode code, partition code, data code, and check code, and specifies the control modes corresponding to different function codes. This communication scheme eliminates the need for additional communication lines, enabling intelligent control of the lighting system using existing DC power supply lines. It offers advantages such as low cost, high reliability, and strong compatibility, and can be widely applied to DC lighting systems in subway stations, shopping malls, office buildings, and other similar locations.

The invention discloses a vehicle control method and device, equipment and a storage medium, and relates to the technical field of vehicle control, and the method comprises the steps: receiving a target control instruction for any vehicle-mounted part in a target vehicle through a control unit; according to a first transcoding rule, transcoding the target control instruction from a non-return-to-zero level code format to an instruction in a Manchester encoding format to obtain a transcoded control instruction; the first transcoding rule is to transcode a bit corresponding to a high level in the non-return-to-zero level code into a double bit corresponding to jumping from a low level to the high level in a single bit period in Manchester encoding; transcoding a bit corresponding to a low level in the non-return-to-zero level code into a double bit corresponding to jumping from a high level to the low level in a single bit period in Manchester encoding; and the universal asynchronous transceiver forwards the transcoded control instruction to a corresponding vehicle-mounted part so as to control the vehicle-mounted part to execute a corresponding instruction operation. According to the invention, the vehicle control cost can be saved, and the vehicle control efficiency is improved.

The invention belongs to the technical field of computer interfaces, and particularly relates to a high-speed serialization implementation method based on a processor parallel bus. The method comprises the steps that 1, in the write operation process of a monitoring branch processor, a monitoring branch FPGA generates a high-speed clock, when the processor initiates a write command, serial addresses and data are converted into Manchester codes, and the coded addresses and data are sent to an instruction branch FPGA through data lines; 2, in the read operation process of the monitoring branch processor, after an instruction receiving module of the instruction branch FPGA receives the address, data to be sent are uniformly arranged on a plurality of receiving data lines in a serial mode, and then the data to be sent are converted into Manchester codes through an encoding module and then sent to the monitoring branch FPGA.

Vehicle interior lighting system (1) with an arrangement of RGB LED units controlled by a computer unit, characterized in that a driver circuit (3) with a Manchester codec (5) is assigned to each predetermined number of RGB LED units, that the driver circuits (3) are connected to the computer units in a series circuit, that a signal sent by the computer unit is converted into a Manchester-coded signal in a first driver circuit (3) directly connected to the computer unit, and the further driver circuits (3) send and receive Manchester-coded signals, and that, depending on a calibration of the RGB LED units, control signals for the assigned RGB LED units are generated in each driver circuit (3) so that they emit light within a target color space.

Methods, systems, and devices for wireless communication are described. A network entity may generate information that may alternate between first and second values during a first segment associated with bits of data according to a Manchester coding scheme. A first end value of the first segment may be one of the first or the second value and may be the same as a start value of the information at a start of the initial portion. The network entity may add, in accordance with an orthogonal division multiplexing communication protocol, a cyclic prefix adjacent to the initial portion of the first segment. After addition of the cyclic prefix to the initial portion of the first segment, the start value of the information at the start of the initial portion may be the same as the first end value of the information based on the Manchester coding scheme.