160 results about "Serial line" patented technology

A method for RGB LED control includes toggling the voltage on a serial line to encode desired colors as a repeating series of variable width pulses. Each pulse in the series corresponds to red, green or blue colors. A state machine monitors the serial line and separates the repeating series into red, green and blue pulses. The state machine forwards each separate pulse to the corresponding color element of an RGB LED. In effect, this provides each color element with a separate PWM control signal. A synchronization method is provided to ensure that the state machine correctly decodes the repeating sequence of red, green and blue colors.

A system for performing high-speed, high-resolution imaging cytometry utilizes a line-scan sensor. A cell to be characterized is transported past a scan region. An optical system focuses an image of a portion of the scan region onto at least one linear light sensor, and repeated readings of light falling on the sensor are taken while a cell is transported though the scan region. The system may image cells directly, or may excite fluorescence in the cells and image the resulting light emitted from the cell by fluorescence. The system may provide a narrow band of illumination at the scan region. The system may include various filters and imaging optics that enable simultaneous multicolor fluorescence imaging cytometry. Multiple linear sensors may be provided, and images gathered by the individual sensors may be combined to construct an image having improved signal-to-noise characteristics.

The invention relates to a multifunctional intelligent GPS vehicle-carrying terminal system, the main frame of which comprises a central precessing unit, a built-in storage, a GPS satellite positioning modular, an alarm sensing modular, a radio communication modular, a graphic display screen with external input funtion, an external storing card and a serial communication modular. The said serial communication modular has standard serial line interface, and said built-in storage has an allocation gragh recording connection conditions of a veriaty of accessories and an external intelligent apparatus.

The invention discloses biological tissue multiple frequency impedance measuring method and measuring apparatus thereof, wherein the linear transformation iterate method of curve fitting is first applied to the extraction of biological tissue impedance model parameter, which can realize accurate matching only through limited frequencies. The measuring apparatus includes a single chip machine for data acquisition, a direct digital frequency synthesizer, a voltage control constant-current source, a current electrode, a voltage measurement and reference signal magnification and filtering circuit, an amplitude discrimination device, a shaping and phase detector, a PC and an isolated serial line interface.

A power distribution apparatus for distributing electrical power includes circuit breaker modules and remote operated devices mounted separately in a panel. The devices may be relays, circuit breakers, meters, dimmers or other devices for controlling a circuit. An I/O controller board is connected to the remote operated devices and controls those devices through a data rail. A control module may interface with the I/O controller board and may also interface with other I/O controller boards and with one or more networks. A serial communications line connects the I/O interface board with a number of remote operated devices. A separate select line runs from each remote operated device to the I/O controller board. To operate a particular device, the I/O controller board asserts the select line of that device, causing the device to listen for messages on the serial line. The relay executes commands contained in a message only of the select line for that device is asserted.

The invention discloses a Portable serial data recorder for collecting and recording the data of the industry on-site device, the traffic line on-site device and the geographic exploration on-site device, which comprises the following parts: a RS232 serial line interface receiving modular and a RS422 serial line interface receiving modular for collecting the data of on-site device RS232 interface and RS422 interface, a Secure Digital saving card for saving the acquired data, a FAT16/32 file system for recording the data with the file form in the Secure Digital saving card, an USB communication modular for transferring the data to the computer by USB protocol, a power and a Li-ion battery modular for providing the needed electronic energy. The data recorder achieves the analysis and dealing of the on-site data off the site environment.

The invention provides an array substrate, an embedded touch screen and a display device. A public electrode layer of the array substrate comprises multiple touch control driving electrodes and multiple public electrodes which are in mutual crossing and insulation arrangement; the touch control driving electrodes comprise multiple touch control driving sub electrodes arranged along the extension direction of the touch control driving electrodes; each touch control driving sub electrode is positioned between adjacent public electrodes; the array substrate also comprises touch control driving electrode serial lines; each touch control driving sub electrode belonging the same touch control driving electrode is electrically connected by at least one touch control driving electrode serial line; the touch control driving electrode serial lines are positioned in the display area of the array substrate; the extension direction of the touch control driving electrode serial lines is consistent with the extension direction of the touch control driving electrodes. The signal transmission loads of the touch control driving electrodes can be reduced and are enabled to be close to the signal transmission loads of the public electrodes, the problem of uneven display picture is avoided, the touch control driving electrode serial lines are arranged in a non-display area of the array substrate, and a narrow frame is favorably realized.

Described embodiments provide a transceiver for transferring data between a media controller and a host device through a communication link. The transceiver includes a first interrupt generator configured to i) generate a first interrupt when a command is received from the host device and ii) provide the received command to a receive buffer. A command processing module i) retrieves the received command from the receive buffer, ii) processes the received command, and iii) provides data request data in response to the received command to a transmit buffer. A datagram generator is configured to provide datagram data to the transmit buffer and a second interrupt generator is configured to generate a second interrupt when data in the transmit buffer is ready for transmission. The transmit buffer interleaves i) the data request data in response to the received command and ii) the datagram data, when provided to the communication link.

The invention provides a calibration test method. The method comprises the following steps: establishing wireless data connection with a mobile phone to be tested in a wireless mode; receiving whole calibration test data by the wireless data connection, wherein the whole calibration test data are returned by the mobile phone to be tested; and carrying out whole calibration test to the mobile phone to be tested according to the whole calibration test data. A test terminal in the embodiment of the invention is connected with the mobile phone to be tested in the wireless mode to transmit test command data, thereby freeing the application of a single-board clamp, a USB line and a serial line and simplifying the establishment of a test environment. In addition, the embodiment of the invention only needs to calibrate and test a mobile phone to be tested and avoids damaging the mobile phone due to repeated disassembly and assembly.

The invention provides an edge time reading circuit. Some sensors carry output information by time quantum, and particularly by generation time of an analog edge. Unit sensing time is long, so that when sensor arrays are arranged in groups, time cost of reading out a serial line is high. The edge time reading circuit disclosed by the invention comprises an analog-to-digital conversion module, an edge-pulse conversion module, a time sequence generation module, a snapshot module and a reading module, and can be used for reading analog edge generation time quantum in parallel and converting data read in parallel into serial output, thereby providing an important technology for grouping of the sensors with a time quantum output manner.

The invention discloses an automatic ultrasonic detection system of a circular soldering seam flaw of a hydraulic bracket cylinder in a mine, comprising a probe-clamping mechanism, an ultrasonic probe, a working piece clamping platform, a stepping motor controller, a stepping motor, an A-shaped digital ultrasonic flaw detector, an RS-232 serial line, an Ethernet cable, an industrial control computer and system software. The invention has the ultrasonic A, B and C scanning imaging functions, realizes the digitization, the automation and the visualization of circular soldering seam detection of the hydraulic bracket cylinder, improves the reliability and the efficiency of the ultrasonic detection, overcomes the defects and shortcomings of a traditional manual ultrasonic detection mode and lessens the reliance of detection results on the experience and the technical expertise level of a detection staff. The invention can be widely applied to the quality detection of the circular soldering seam of the hydraulic bracket cylinder and can be significant to the quality control of the circular soldering seam of the hydraulic cylinder and the guarantee of the whole performance of the hydraulic bracket.

The invention discloses a device for testing the performance of an optical module and aims at providing a convenient and quick test environment. The invention is realized by the following technical scheme: a PC is connected to a server through an RJ45 network cable, is connected to an optical module performance test board through a USB data line, and is connected to an optical power meter throughan RS232 serial line, the optical power meter is connected to an ROSA optical device through an optical fiber splitter, a tested optical module is connected to the test board through a gold finger slot, the average optical power of the TX end of the tested optical module is divided into two by the optical fiber splitter, one path is sent to the ROSA optical device, and the other path is sent to the optical power meter, the PC obtains the average optical power value of the optical module measured by the optical power meter, and then compares the average optical power value with an optical powerthreshold that have been configured by the server, and determines whether the average optical power value of the tested optical module is within a normal range by using the comparison result. An alarm light visually displays various performance test results of the tested optical module.

The invention relates to a method for debugging an 8051 core-based system on chip (SOC) on line, and belongs to the technical field of integrated circuit design. On-line debugging software on a personal computer (PC) finishes communication with an asynchronous serial interface in the SOC through a serial line so as to realize on-line debugging. The system comprises the on-line debugging software on the PC, an RS232 conversion circuit and the 8051 core-based SOC. The method realizes the 51 instruction analysis, breakpoint processing, operation processing and content debugging of the SOC. Software codes are debugged on line by a few data lines after the mass production of chips is realized, so that the debugging work of the system is greatly simplified, the debugging time is shortened, the function optimization of the system is facilitated and the fault tolerance of the system is enhanced. Meanwhile, the scheme is simple and reliable, avoids using a logic analyzer and automatic test equipment to cause high cost, and can be applied to various SOCs taking an 8051 core as a control core.

The invention relates to an underground separated layer water injection control system based on a RFID (radio frequency identification device). The system comprises a computer, a radio frequency card writing chip, a radio frequency card and a water distributor, wherein the computer and the radio frequency card writing chip are connected through a URAT (universal asynchronous receiver transmitter) serial line; and when in construction, the radio frequency card and the radio frequency card writing chip are connected through wireless communication. The system provided by the invention also has the advantages that: the radio frequency card is very small and can smoothly drop in an oil pipe without blocking the oil pipe; and the radio frequency card is provided with a plastic protection layer to buffer impact. In the invention, the special water distributor is provided with a valve control circuit and a corresponding valve transmission mechanism; the mounting structure is compact, the strength of the water distributor is not influenced, and butt joint with a standard oil pipe is convenient; and the system is suitable for the small space in an oil well, and an oil well pipeline does not need to be modified. The sleeve and a sealing rubber ring of the special water distributor can effectively protect the valve control circuit and the corresponding valve transmission mechanism from interference of factors such as underground pressure, humidity and the like.

This invention relates to a pre-calibrating power measuring chip, which comprises first adjustable amplifier (1), second adjustable amplifier (2), first A/D converter (11), second A/D converter (21), first digit filter (12), second digit filter (22), voltage basic circuit (3), power calculation circuit (4), clock generator (5), serial line interface circuit (6), internal memory (7) and calibrating circuit (8). The first end of calibrating circuit (8) is two-way connected with internal memory (7) and the second receive the instantaneous power and instantaneous active power from the power calculation circuit. The second adjustable amplifier (2)of calibrating circuit sends calibration analog signals.

The invention relates to an ethernet network packet fast-forwarding realization method based on a microwave facility network management system; the method is realized based on the microwave facility network management system; the system comprises a management station and a plurality of microwave stations, the microwave station is composed of a microwave facility or a plurality of microwave facilities, the management station is connected with one microwave facility in one microwave station by a network line, a plurality of microwave facilities in one microwave station are connected by the network line, the adjacent microwave stations are connected mutually by a microwave link, self-definition is carried out to data format on the basis of simple network management protocol SNMP. In the invention, fast forwarding from the ethernet network packet structure to 64kbit/s serial line is realized, fast, stable and reliable forwarding requirements of a data packet are met, and the invention is a fast-forwarding realization method of the ethernet network packet in the serial link.

This invention relates to a GPS recorder with MP3 audio, video recording and remote sending, including a running recorder substrate, which has a CPU module, GPRS communication module and links GPS satellite positioning module and car power. Its character is that CPU module connects with digital multimedia unit through high-speed serial lines, and the digital multimedia unit includes CPU module, digital analog converters, data memory, MP3 / image data memory, program memory, USB chip, USB ports, audio output ports. CPU module connects audio output port through digital analog converter, and GPRS for outside sending-receiving through UART asynchronous serial communication, to make the recorder realize MP3 music, voice, video, and recording digital signal transmission of remote images.

A multidimensional radial pressure measuring device of a underground sucker rod comprises two parts: underground assemblies and ground accessories; when the measuring device is used in underground measurement, the underground assemblies and the ground accessories are separated and independently work; the underground assemblies are used for adaptively adjusting the data sampling frequency according to the change speed of radial pressure and amplitude index control, and the ground accessories are used for analyzing and processing the radial force data of the sucker rod at the previous time period; when the measuring device is arranged on the ground to perform data analysis, the underground assemblies and the ground accessories are connected through a data communication interface (605) by using a serial line; and the underground measurement data is transferred from a large-capacity flash memory (604). The multidimensional radial pressure measuring device is regular in structure, small in size and capable of measuring the multidimensional radial pressure of the underground sucker rod in real time and satisfying the measurement requirements in narrow spaces and complex working conditions.

In one embodiment, the invention relates to a serial line circuit that comprises a serial information (SI) bus and at most two isolators interposed between a pair of programmable devices. In the TRANSMIT direction, a first programmable device is configured to multiplex serial data received from a plurality of serial UARTs and to route such data to the second programmable device over the SI bus and through a first isolator. In the RECEIVE direction, the second programmable device is configured to sample data from a plurality of serial interconnects and to route the sampled data to the first programmable device. The sampled data is routed over the SI bus and through a second isolator. The data transmission over the SI bus is in accordance with a proprietary serial transmission protocol described below.

A method of communicating on a single serial line between two devices is disclosed. The method includes combining a data stream and a clock to form a three-voltage level stream such that the third voltage level records the transitions of the clock while the serial data is either high or low. Either the first or the second device can send a combined stream on the line. The method further includes, in some embodiments, the second device driving the same voltage levels as those transmitted by the first device and the first device sensing current on the single serial line to determine that the second device has received data from the first device.

The high speed SATAn interface data restoring and serial-parallel conversion method includes the following steps: inputting high speed serial signal to obtain four ways of frequency-lowering shunt signal; sampling the four ways of frequency-reducing shunt signal separately; generating one clock signal from the serial line for subsequent sync circuit; outputting integrated sample signal in each clock period; eliminating excessive bits of the sample signal in each clock period and connecting effective bits to constitute bit sequence datan output; comparing the bit sequence datan and the sync word of the protocol for aligning bits and outputting effective protocol data. The circuit module based on the method includes frequency-reducing shunt circuit, successively connected four circuits of sample circuit, integrating output circuit, clock generator circuit and redundant bit eliminating circuit, as well as bit aligning circuit and micro controller.

The present invention discloses a program batch programming work platform and a batch programming method. The method includes: S1, after the program programming of the first device is completed, the operating computer sends a signal to the controller through a communication interface; S2, the controller After receiving the signal, send a switching signal to the multi-way selector switch, and the multi-way selector switch starts to act after receiving the signal, and switches to the next device, so that the serial line input and output and serial clock line required by the programming program are connected. ; S3, the controller also sends a power switching signal to the power gating circuit formed by the multi-way selection switch, and the signal is used to control the control pin of the MOS tube, so that the MOS tube is turned on, and the power supply is drawn from the turned-on MOS tube port, let the power of the next device be turned on, and program the next device at this time; S4, repeat steps S2 and S3 until all the devices are programmed. The invention can realize one-to-many programming operation, and can be extended to a circuit structure with wide applicability in other occasions of one-to-many operation.

A communication interface, as a part of a programmable controller, serves to carry out command-response communications with an external general-purpose device connected through a specified communication line according to an execution command from a user program for controlling a control device connected to the programmable controller or according to a preliminarily stored program. When a communication command addressed to an external general-purpose device is received from a peripheral device, it is converted appropriately for communication through a serial line. When it is relayed to the external general-purpose device, it is judged whether it is in a wait condition for a response and the relaying is temporarily stopped. When the wait condition ends, communication is carried out with the external general-purpose and the converted command is relayed to the external general-purpose device.

The invention discloses a ground wire-free non-conductive coating electric spark detection device which comprises a pulse high pressure generator on a trolley, wherein the pulse high pressure generator is serially connected to a divider resistor and a wire brush; high-frequency signal acquisition processors are arranged on two sides of the divider resistor; the high-frequency signal acquisition processors are connected to an alarm; the wire brush can move on a coating of a metal substrate. The detection method comprises the following steps: 1) detecting a voltage signal; if detecting that the voltage signal exists on the divider resistor, alarming by the alarm, wherein when detecting pinhole defect of the coating, high voltage breakdown occurs, charges move towards the metal substrate via the coating, weak transient current is generated in a serial line, voltage appears on two sides of the divider resistor, and the alarm alarms when the voltage is detected; 2) when detecting a current signal, alarming by the alarm if the current signal is detected, wherein when detecting pinhole defect of the coating, high voltage breakdown occurs, charges move towards the metal substrate via the coating and are detected by the high-frequency signal acquisition processors, and the alarm sends out a defect alarm.