541 results about "Communication boards" patented technology

A communications task resides on an audio/communications board of the computer conferencing system. A communications manager and a communications application programming interface reside on a general-purpose host-processor of the computer conferencing system. The communications manager receives local compressed video signals from a video subsystem of the computer conferencing system and passes the local compressed video signals to the communications task. The communications task receives local compressed audio signals from an audio task of the computer conferencing system, the audio task residing on the audio/communications board. The communications task transmits the local compressed video signals and the local compressed audio signals over a communications link to a remote computer conferencing system. The communications task receives remote compressed video signals and remote compressed audio signals over the communications link from the remote computer conferencing system. The communications task passes the remote compressed audio signals directly to the audio task for decompression and playback processing. The communications task passes the remote compressed video signals to the video subsystem for decompression and playback processing.

In accordance with a non-limiting example, an optical communications system includes a plurality of Customer Premises Equipment (CPE), each having a reverse power supply circuit and each connected to a wire pair and configured to transmit and receive data and provide reverse power over the wire pair. An Optical Network Unit (ONU) includes a plurality of communication boards. A respective communication port is connected to a selected wire pair and its associated CPE through which data is transmitted and received and power received therefrom. A power management circuit is connected to each of the communication ports and configured to receive power and provide power sharing and manage power consumption and power supply redundancy from the plurality of CPE through the communication ports.

The invention provides an unmanned aerial vehicle mixed system carried by an unmanned ship. The system comprises the unmanned ship, an unmanned aerial vehicle and a mixed communication system. The unmanned ship serves as a water domain movable platform for the unmanned aerial vehicle, and mainly comprises a ship body, a ship-borne control system arranged on the ship body, a ship-borne power device and a ship-borne application device. The unmanned aerial vehicle comprises an unmanned aerial vehicle body and a vehicle-mounted coordinating system. The unmanned aerial vehicle body is provided with a vehicle-mounted navigation device, a vehicle-mounted obstacle-avoiding device, a vehicle-mounted control device, a vehicle-mounted power device and a vehicle-mounted application device. The mixed communication system comprises a ship-borne communication device and a vehicle-mounted communication device. The ship-borne control system of the unmanned ship and the vehicle-mounted control device of the unmanned aerial vehicle body exchange data through the mixed communication system; the ship-borne control system serves as the core for the mixed communication system, and the unmanned ship and the unmanned aerial vehicle are controlled uniformly by an internal bus and a communication board card to work in cooperation. By means of the mixed system, the unmanned ship and the unmanned aerial vehicle can effectively supplement each other in water domain and space domain functions, and meanwhile the disadvantages of the water domain unmanned ship during space domain perpendicular work are compensated for.

The invention relates to a converter tilting electric drive control system, which comprises a plurality of frequency converters and a plurality of tilting electric motors which are respectively controlled by the inverters, wherein, a frequency converter is defined as a logic master frequency converter by a Master PLC, and others are defined as logic slave frequency converters by the Master PLC. All frequency converters are provided with CBP2 communication boards and communication that comprises given speed, control word and status words with the PLC through the Profibus-DP network is achieved;through analog channels that CUVC board comes with, a ring connection is formed among all frequency converters, to transmit torque components. The invention has the advantages of being simple and reliable, convenient on-line switching, high-precision control, fast dynamic response, and effectively solving the defects of poor balance, dynamic response slow and mechanical damage greater caused by that a speed controls three torque controls traditionally, or a control method that finds the balance torque by using the flexible machinery traditionally.

A wireless communication apparatus including: a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method; a power supplying section which supplies power to the plurality of transmitting/receiving sections; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied.

The invention relates to a device for storing and processing information (SPI device) comprising a sealed protective casing produced from conductive non-magnetic material, and a unit for storing and processing information, the unit comprising a base, a logic board, communication boards, magnetic cores and electrical coupling components which are combined into an electrical circuit of the stand-alone unit for storing and processing information, and can be used in the field of radio electronics, computation, informatics, and telecommunications as a portable integrated solid-state device which is provided with a contactless input of electrical energy and information signals from another electrical energy apparatus. An achieved technical result is in wider applicability of the SPI device, increased protection of information, and improved characteristics, such as resistance to environmental impacts, higher operating speed, reliability, and multifunctional performance, improvement of mass-dimensional properties and production processability index.

The invention discloses an embedded mine data substation which is an underground data acquisition and control device used in a coal mine safe production monitoring system. The substation comprises an intrinsic safety power source, an ARM controller mainboard, a CAN bus communication board, a display drive board, a liquid crystal display screen and an explosion-resistant enclosure. Real-time data of various sensors of analog quantity, switching value and cumulant, which are articulated with the mine data substation, is acquired in real time through a downlink RS485 bus, and the real-time data is displayed by the liquid crystal display screen; cutting off control is automatically performed to articulated output equipment by means of set control logic according to the change of the real-time data; the data is transmitted to a ground monitoring host computer through an uplink CAN bus interface and network monitoring is performed. The substation is suitable for underground environment of a coal mine, has functions of intelligent alarm, cutting off control and automatic network deployment, is an important component element in a masterless coal mine safe production monitoring system and can reduce the occurrence probability of coal mine safety accidents in time.

A distributed control system has a plurality of distributed field devices, each of which contains a transducer and a wireless transceiver. The distributed control system includes a base station transceiver, a database and a virtual transmitter application in communication with the database. Each field device transmits and receives data via wireless signals between the communications boards and the base station. The data is stored in the database for later retrieval and evaluation by the virtual transmitter application. The deployed field device senses information and transmits the sensed information wirelessly to a base station. The sensed information is stored in memory on a computer system, and programmatically groomed to provide a measurement value, upon request by a user.

A disclosed communication interface for a gaming machine has a main communication board with one or more standard receptor slots for a plurality of “daughter boards,” each daughter board allowing communication between a master gaming controller and a gaming device or between a master gaming controller and a gaming machine network. The daughter boards may be designed to convert between a number of different communication standards or communication formats. Further, the daughter boards may employ a standard connector that allows the daughter board to be plugged into any of the standard receptor slots on the main communication board. Daughter boards may be removed or installed on the main communication board while the main communication board is receiving power. Further, the main communication board with a plurality of standard receptor slots may accommodate many different types of daughter boards and many different combinations of these types of daughter boards.

The invention discloses a full-electronic security computer interlocking system. The full-electronic security computer interlocking system comprises a special railway security computer, an interlocker, a control and display machine and an electronic executing unit subsystem, wherein the special railway security computer comprises two security computers as a master computer and a spare computer; each security computer comprises a CPU (central processing unit) board and multiple communication boards; data transmission and data synchronization between a first CPU module and a second CPU module of the CPU board are finished through a two-port RAM (random access memory) and interrupt operation; the CPU board and the communication boards in a same system exchange data through the two-port RAM and the interrupt operation; during system operation, the first CPU module and the second CPU module output control signals for driving a master relay; and a normally open contact of the master relay is used for controlling acting power of onboard safety relays of all the communication boards. By a working method of the full-electronic security computer interlocking system, the special railway security computer can achieve functional safety of a double 2-vote-2 platform, can achieve short-period task-level synchronization of a single computer and two computers, and can achieve seamless handover under fault conditions.

A communication board mounted on an electronic device includes a plurality of antennas configured to transmit and/or receive a signal by electromagnetic induction, where each of the plurality of antennas is provided on a substrate, as a coil-shaped pattern, a semiconductor chip mounted on the substrate, the semiconductor chip including at least one of a transmission circuit which transmits a signal to the antenna and a reception circuit which receives a signal transmitted from the antenna, and an input-and-output end that is connected to the semiconductor chip via a wiring layer provided on the substrate and an electronic circuit of the electronic device. The communication board communicates with a communication board mounted on another electronic device via the antenna by electromagnetic induction.

To improve a communication performance of a communication apparatus by configuring a communication board provided with a PLC signal processor so as to be used in common in other apparatuses, the communication apparatus which performs communication through a power line and a transmission medium different from the power line includes: a power board which is provided with a power unit connected to the power line; an interface board which is separately formed from the power board and is provided with an interface for performing communication through the transmission medium; and a communication board which is separately formed from the power board and the interface board and is provided with a power line communication unit for performing communication through the power line and a connection unit electrically connectable to the power board and the interface board.

The invention discloses an optical fiber field bus communication system which is suitable for the special industry and mining fields such as the mines, the airports and the like and adopts the specialcommunication method, belonging to the field of the automatic information processing technology. The optical fiber field bus communication system comprises single-mode optical modules, a filed bus communication board and an ARM control mainboard; the single-mode optical modules are used for the optical signal transmission and the information connection among communication nodes; the filed bus communication board is used for realizing the physical layer protocol and the data link layer protocol of a communication device, modulating and demodulating data and converting an upper layer data format and a lower layer data format; and the ARM control mainboard is used for realizing the application layer protocol of the communication device and compiling a communication protocol, a frame format and the like. The optical fiber field bus communication system is suitable for the special industry and mining fields such as the mines, the airports and the like, has the advantages of high communication speed, far communication distance, strong electromagnetic interference resisting ability and plays an important role in reducing the safety accidents in the mines, the airports and the like and guaranteeing the communication between the control console and all the field equipment.

The invention particularly relates to a PCI (programmable communications interface) aviation serial bus board and a dynamic data loading processing method and aims to solve the problems of complicated hardware design, poor data processing capability, low speed, poor instantaneity and flexibility of conventional PCI communication boards. The PCI aviation serial bus board is used for processing MIL-STD-1553B and ARINC429 bus data in the virtual test system and can dynamically adjust data processing algorithms in virtual test. Processing efficiency of the MIL-STD-1553B and ARINC429 bus data in the virtual test can be effectively improved, and instantaneity of the virtual test system is improved. By the dynamic data loading processing method, programs can be loaded dynamically, so that flexibility and using value of the board are high. The PCI aviation bus board and the dynamic data loading processing method are applicable to virtual test.

The present invention relates to a card reader assembly. The card reader assembly can be mounted in a variety of vending equipment, arcade game equipment, and other suitable equipment. Furthermore, the card reader assembly can be mounted in a standard size vending machine bill validator opening.

The card reader assembly can provide for the optional mounting of a card reader, a card reader interface circuit board, a payment module board, a communication board, and or a printer. The printer mechanism is mounted on a printer bracket. The printer bracket can be slid over the edges of and fastened to the support bracket. A paper exit slot can be provided in the card reader assembly faceplate to allow the printer paper to exit through the faceplate such that a user can receive the printer paper.

In addition, the printer mechanism, card reader, and or a pushbutton can be electrically connected to the card reader interface board. The card reader interface board can be electrically connected to a computing platform 802, vending interface unit (system 500), or other suitable data processing device. In addition, a plurality of light emitting diodes (LED) can be incorporated into the card reader assembly. The LED display can be viewable by a user of the card reader assembly.

The invention relates to a file management method of embedded equipment and a system. The embedded equipment is used for monitoring a single communication board in a communication system, all storage spaces of a storage unit of the embedded equipment are initialized, a hash table is established in a pointer area of the file, hash operation is conducted on a hardware address of the single communication board. According to a hash code acquired by the hash operation, the position of a first address of the single board information in the hash table is determined and the first address is stored in the hash table. The zone of a page distribution sheet is used for recording the state of a page stored with the single board information, upgrade software and default drivers. According to the capacity of the single board information, the pages with required number are distributed in the storage area of the single board information, and the pages storing the single board information are caused to logically form a continuous data storage area through a list structure. The invention can solve the problem of insufficient utilization rate of the storage space and improve the access speed as well as the working efficiency of files.

The invention provides an expandable and cuttable multi-shaft movement control system, which includes a CPU core system board, an FPGA base board, and a fieldbus servo communication board; the CPU core system board and the fieldbus servo communication board are connected with the FPGA base board through a unified bus slot; an FPGA chip on the FPGA base board is connected with an upper computer through a serial bus; the FPGA base board provides multi-shaft pulse type servo drive slots connected with a servo drive system; and the fieldbus servo communication board is connected with a fieldbus, and transmits a movement control order to a bus type servo drive system through the fieldbus. The CPU special processing chip in the invention can select different CPU modules according to actual requirement and function, the fieldbus servo communication board also can be particularly selected according to the actual bus type of the servo drive system, and the multi-shaft movement control order can be transmitted to the servo drive system in the forms of pulse signals and fieldbus protocol signals, so that the expansion and the cut of the number of control shafts can become more convenient.

The invention relates to a software debugging method and device for an SFP (small form pluggable) ONU (optical network unit). An I2C communication board is additionally arranged between the SFP ONU and a terminal and used for switching over UART (universal asynchronous receiver transmitter) or USB (universal serial bus) data and I2C data, an optical module in the SFP ONU is used for switching over the I2C data and the UART data, so that user operation instructions transmitted by the terminal and used for debugging software can be transmitted by the aid of the I2C communication board and the optical module to a PON MAC chip, the PON MAC chip transmits control signals to the optical module or a target device according to the user operation instructions and receives response signals returned by the optical module or the target device, and then the response signals can be transmitted to the terminal sequentially through the optical module and the I2C communication board, so that the response signals are analyzed by the terminal to obtain software debugging results.

The invention discloses a novel space station extravehicular inspection maintenance unit (EIMU), and belongs to the design field of aerospace crafts. The novel space station EIMU comprises intravehicular monitoring equipment, an antenna and an EIMU device, wherein the intravehicular monitoring equipment and the EIMU device are in communication through the antenna. The intravehicular monitoring equipment comprises a video display terminal, an inspection device control platform and a manual remote control device. The EIMU device comprises solar cell panels, a micro-mechanical arm, sun sensors, nitrogen propellers, a binocular stereo vision camera, a three-axis magnetorquer, a momentum wheel, a satellite-borne computer board and a communication board. The novel space station EIMU can provide extravehicular inspection and maintenance service for large spacecrafts such as space stations and ensure that the spacecrafts can achieve in-orbit operation safely and fulfill tasks smoothly.

The invention discloses a working method of a secure computer specially used for railways. The computer comprises two secure computers which are respectively used as a principal machine and a standby machine; each secure computer comprises a CPU (Central Processing Unit) board and a plurality of communication boards, wherein data transmission and synchronization between a first CPU module and a second CPU module of the CPU board are completed through a double-port RAM (Random Access Memory) and interrupt operation; the data exchange between the CPU board and the communication board positioned in a same system is completed through the double-port RAM and the interrupt operation; the first CPU module and the second CPU module output control signals used for driving a general control relay during the operation of the system, and the normally open contact of the general control relay is used for controlling onboard secure relays and active power supplies of all the communication boards. The working method disclosed by the invention can realize the functional security of a square two-out-of-two architecture platform through the secure computer specially used for the railways, realize the synchronization of the short-period task levels of the system and double systems and achieve seamless switching under the condition of a fault.

The invention discloses a check system for a LabVIEW-based automobile instrument. The check system for the LabVIEW-based automobile instrument comprises an upper computer, a national instruments corporation PCI extensions for instrumentation-6624 (NIPXI-6624) board card, two NIPXI-6528 board cards, a programmable network resistor, a controller area network (CAN) communication board card, an NIPXI case, a serial port to universal serial bus (USB) data line and a LabVIEW human-computer interface software program. The upper computer communicates with the NIPXI case by the serial port to USB data line; the NIPXI board cards are inserted into corresponding slots in the NIPXI case; the NIPXI-6624 board card is respectively connected with a speedometer and a tachometer; one of the two NIPXI-6528 board cards is connected with a fuel meter and a water-thermometer by the programmable network resistor; the other NIPXI-6528 board card is connected with various switching value signal indicating lamps; the upper computer, the NIPXI board cards and various instruments communicate with the switching value signal indicating lamps by a CAN bus of the CAN communication board card; and the LabVIEW human-computer interface software program is a software platform of the check system. The portable automobile instrument check system is compact and flexible and is high in reliability, and the real-time feedback of automobile state information can be realized by aiming at different automobiles.

The invention provides a communication framework and method which are suitable for a modularized multi-level converter control system. The framework comprises an optical fiber communication board card of valve base control equipment (VBC), an optical transceiver module of the optical fiber communication board card, converter control submodule units (SMC) as well as optical transceiver modules and optical fiber channels of the converter control submodule units, wherein one VBC is provided with at least one optical fiber communication board card provided with at least one optical transceiver module; the optical fiber channel is used for realizing the information transmission between the VBC and the SMCs and/or the information transmission between the SMCs. In addition, the invention also provides two communication methods using the communication framework. The communication framework and method solve the problems brought as the number of VBC optical fiber communication ports and the number of the SMCs are not matched in the modularized multi-level converter control system, the software and hardware design complexity of the system is reduced and the framework can be suitable for a high-voltage large-capacity flexible direct system with a larger SMC number by flexible extension.