42 results about "Closed-Loop Communication" patented technology

The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and / or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD.

Methods and systems for calculating pre-distortion coefficients in a closed-loop communication system are presented. Transmission terminals that include high power amplifiers are difficult to operate at or near the saturation point without transmitting signals with nonlinear distortions. By pre-distorting the signal prior to amplification the transmitted nonlinear distortions may be decreased. A closed-looped pre-distortion system may include a receiver that calculates the pre-distortion coefficients and transmits these coefficients back to the transmitter. These coefficients may be stored in a pre-distortion coefficient lookup table and may be updated by the receiver terminal.

In order to transmit a large amount of data in series at a time with a MIMO communication scheme while avoiding deterioration of decoding characteristics due to change over time by a channel matrix, a wireless communication system uses an open-loop type and a closed-loop type of MIMO communication modes in combination and switches to the open-loop MIMO communication mode in response to the information that the amount of data to be transmitted at a time has exceeded a predetermined amount of bits or a predetermined transmission time during data transmission under the closed-loop MIMO communication mode. By discontinuing useless closed-loop MIMO communication and switching to the open-loop MIMO communication mode that is better than Zero-forcing, the decoding characteristics are prevented from simply becoming deteriorated.

A design-to-ship enabled shipping device in a commercial printing environment and method for managing workflow for use with the same. The present invention provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via the closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and receiving a printed output of the press ready file and shipping the printed output using an automated shipping device.

A design-to-press enabled printing device and a design-to-finish enabled finishing device in a commercial printing environment and method for managing workflow for use with the same. The present invention provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via the closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and performing at automated printing of the press ready file using a digital printer to create printed output corresponding to the press ready file. The present invention also provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via the closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and receiving a printed output of the press ready file and finishing the printed output using an automated finishing device.

The invention belongs to the technical field of full automatic detection of power equipment and particularly relates to a system for testing a power quality monitoring device and a testing method of the system. The system comprises a detecting host, a standard source and the power quality monitoring device. The detecting host is connected with the stand source through a GBIP bus in a communicating mode. The standard source is electrically connected with the power quality monitoring device through a test signal line. The power quality monitoring device and the detecting host form a closed loop communication control system through the Ethernet. According to the system and the testing method of the system, the accuracy of power quality indexes, a data model and communication protocols can be tested, the automatic system detection and fault recognition alarm functions of standard source overload judgment, power quality monitoring device wiring correctness, closed loop testing environment integrity and the like can be achieved, the intelligence and the automation degree of testing the power quality monitoring device are improved, and the work benefits of testing the power quality monitoring device are increased.

A design-to-pack enabled packaging device in a commercial printing environment and method for managing workflow for use with the same. The present invention provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via the closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and receiving a printed output of the press ready file and packaging the printed output using an automated packaging device.

Methods and systems for calculating pre-distortion coefficients in a closed-loop communication system are presented. Transmission terminals that include high power amplifiers are difficult to operate at or near the saturation point without transmitting signals with nonlinear distortions. By pre-distorting the signal prior to amplification the transmitted nonlinear distortions may be decreased. A closed-looped pre-distortion system may include a receiver that calculates the pre-distortion coefficients and transmits these coefficients back to the transmitter. These coefficients may be stored in a pre-distortion coefficient lookup table and may be updated by the receiver terminal.

The invention provides a modular reconfigurable motion controller architecture based on an SERCOS. The architecture comprises a PLC, a motion controller and an SERCOS communication unit. The motion controller and the SERCOS communication unit are electrically connected with the PLC. The architecture also comprises SERCOS master stations and more than one SERCOS slave station. The SERCOS master stations and the more than one SERCOS slave station are in closed loop communication connection through a fiber or copper twisted pair. Each SERCOS slave station is provided with a servo driver for driving a servo motor. The motion controller performs instruction transmission and information feedback with the servo drivers by adopting SERCOS message communication. The modular reconfigurable motion controller architecture based on an SERCOS bus protocol embodied by the invention has full reconfigurable characteristics and high flexibility, and is particularly suitable for servo synchronous control at different positions such as distributed numerical control, combined type numerical control, high performance printing equipment and the like.

The invention discloses a sand-dust blowing environment test device which comprises a test channel, a sand-dust separation device, a circulating air channel and a sand-dust return pipe, wherein the circulating air channel is formed by the mutual closed loop communication of air return channels, and the return pipe is connected with the sand-dust separation device and the test channel so as to enable sand and dust to be circulated between the sand-dust separation device and the test channel; and the sand-dust blowing environment test device also comprises a dehumidifying device which is arranged on the sand-dust separation device and used for carrying out the dehumidification on air in the circulating air channel. According to the sand-dust blowing environment test device, the dehumidifying device not only has simple structure, but also can remarkably improve the dehumidifying efficiency and the dehumidifying reliability.

Apparatus for the automatic packaging of one or more articles. One or more modular infeed systems are provided, each adapted to feed product to a wrapping machine, and each preferably adapted to communicate with a wrapping machine to identify its configuration to the wrapping machine. In a preferred embodiment, each modular infeed includes a film roll unwind assembly, an integrated film folding head, a product conveyance mechanism and a closed-loop communications network.

The invention provides an electricity utilization information acquisition system which comprises a concentrator and first to N acquirers. Single-core plastic optical fibers serve as transmission channels among the concentrator and the acquirers, and the concentrator is connected with the acquirers in a closed-loop serial mode, so that closed-loop communication is achieved. As the concentrator and the acquirers are in closed-loop communication when data communication is performed, the concentrator can issue and acquire data commands through two paths (an anticlockwise direction and a clockwise direction form a single-core half-duplex channel), when a certain communication line breaks down, the acquirers can continue transmitting output data commands to a target acquirer and receive a feedback result through the other path, so that incapability of acquiring data due to breakdown of a certain point or disconnection is avoided, large reduction of failure rate and meter reading rate is avoided, and the reading efficiency of electric energy meters is greatly improved.

The invention provides a receipt method for achieving big dipper RD communication. According to the method, a first communication telegraph text of a sending terminal is compared with a second communication telegraph text of a receiving terminal, a generated receipt telegraph text is sent to the sending terminal, and a closed-loop communication transmission mode of big dipper RD communication is achieved. According to the receipt method for achieving the big dipper RD communication, a communication receipt processing procedure is added in the big dipper RD communication process, an existing open-loop communication transmission mode of big dipper RD communication is changed into the closed-loop communication transmission mode, the problem that information cannot be reliably sent or the transmission state cannot be detected in an existing communication process can be effectively solved, observability of the big dipper RD communication state is achieved, reliability of big dipper RD communication is improved, and the method has a great and practical significant in promoting the big dipper civil use progress.

Apparatus for the automatic packaging of one or more articles. One or more modular infeed systems are provided, each adapted to feed product to a wrapping machine, and each preferably adapted to communicate with a wrapping machine to identify its configuration to the wrapping machine. In a preferred embodiment, each modular infeed includes a film roll unwind assembly, an integrated film folding head, a product conveyance mechanism and a closed-loop communications network.

A mobile communication apparatus with multiple transmission and reception antennas and a mobile communication method therefor are provided. In the mobile communication apparatus including a base station and a mobile station, the base station with at least one transmission antenna restores long-term information, short-term information, a signal to interference and noise ratio (SINR) from a feedback signal received from the mobile station, spatially processes dedicated physical channel (DPCH) signals using basis information generated from the restored long-term information, short-term information and SINR and transmits the results of adding pilot channel (PICH) signals to the spatially processed results to the mobile station. The mobile station with at least one reception antenna determines a first characteristic corresponding to the channel downlink characteristic for each of the transmission and reception antennas, from the PICH signals transmitted from the base station, determines the long-term information, the short-term information, and downlink power control information including the SINR, which reflect the first characteristic, converts the determined long-term information, short-term information, and downlink power control information into the feedback signal, and transmits the feedback signal to the base station. The long-term information includes effective long-term eigenvectors and effective long-term eigenvalues, the short-term information includes effective short-term eigenvectors, and the downlink power control information indicates whether to increase or decrease downlink transmission power. Therefore, with the great advantage of closed communications systems the effects of interference, noise, and fading can be minimized, whereas throughput can be maximized.

A design-to-ship enabled shipping device in a commercial printing environment and method for managing workflow for use with the same. The present invention provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via the closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and receiving a printed output of the press ready file and shipping the printed output using an automated shipping device.

Spam-free electronic message system and method are described. A system and method for providing email or other electronic messages between users is described that comprises a centralized closed-loop communication network; a server(s) accessible through secured or encrypted connections for receiving and sending email between users; and a structured user protocol with an enforcement recourse process for users. The system provides a spam-free network system and method of operation.

The invention relates to a tunnel LED lighting dimming device which comprises a master controller, n LED tunnel lamps and a serial bus. The master controller and the LED tunnel lamps form a closed-loop communication return circuit through the serial bus, wherein n is a natural number lager than 1. The invention further relates to a dimming method of the tunnel LED lighting dimming device. According to the method, the master controller sends an LED tunnel lamp address code generation command through an output interface of the serial bus, and all the LED tunnel lamps save address codes generated by the LED tunnel lamps respectively; the master controller can send a dimming command of any of the LED tunnel lamps through the output interface of the serial bus; the LED tunnel lamps can send out an alarm command through the output interface of the serial bus. According to the tunnel LED lighting dimming device and dimming method, by forming the closed-loop communication return circuit through the design of double communication ports of the master controller and the LED tunnel lamps, a dynamic address coding method of the LED tunnel lamps is achieved, great convenience is brought to dimming, reliability is greatly improved, and communication distances are not limited any more.

The invention discloses a method for performing network security protection on an Internet of things system. The method is characterized in that a security module is connected in series to each Internet of things terminal at a front end of the Internet of things system; an Internet of things system operation and maintenance security supervision platform is connected in series to an Internet of things system server; the security modules perform network communication with the Internet of things system operation and maintenance security supervision platform through information transmission; communication between the Internet of things terminals and the Internet of things system server needs to be performed through the security modules and the Internet of things system operation and maintenance security supervision platform; and communication among the Internet of things terminals needs to be performed through the security modules. The method consists of server-to-end communication security protection, end-to-server communication security protection and end-to-end communication security protection. On the basis of a closed-loop communication security protection system built with the security modules, the Internet of things system operation and maintenance security supervision platform and an information transmission network therebetween, the continuous evolution of the Internet ofthings protection capability and continuous improvement of the security level are ensured.

The invention discloses an invoice issuing method, an interaction method of an invoice issuing system and a server. Closed-loop communication of voice issuing data is formed by integrating a mobile terminal, a server side, and a PC end. The accuracy of data transmission is ensured by providing a two-dimensional code of a commercial tenant; the invoice issuing operation is simplified and the invoice issuing time is saved, so that the accuracy of information transmission between a payer and a payee is ensured; the efficiency of invoice issuing by the payee is improved; and the consumer is able to manage and use the issued invoice conveniently.

An integrated workflow for commercial printing with a closed-loop communication link between designer and print service provider locations. The present invention provides a method, program product and system for managing workflow in a commercial printing environment including a designer location and a print service provider location, where the method comprises establishing a closed-loop communication link between the designer location and the print service provider location, creating a press ready file at the designer location using updated device configuration information received from the print service provider location via said closed-loop communication link, submitting the press ready file to the print service provider location via the closed-loop communication link, and performing at least one of automated printing, finishing, packaging and shipping using the press ready file.

The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and / or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD.

A wireless communication apparatus in a closed loop communication wherein a channel resource can be shared among users and hence the capacity of the communication system can be increased. In this apparatus, calculating parts (6031 and 6032) calculate a first pre-code (α) and a second pre-code (β), respectively, from CSI fed back from a receiving wireless communication apparatus; an encoding part (6033) includes multipliers (α1, α2), which multiply the first pre-code (α) by a first data and a second data to generate a first encoded data and a third encoded data, respectively, and also includes multipliers (β1, β2) that multiply the second pre-code (β) by the first data and the second data to generate a second encoded data and a fourth encoded data, respectively; spreading parts (6034-1 and 6034-2) spread the first and second encoded data with a first spreading code (c) to generate a first spread data and a second spread data, respectively; spreading parts (6035-1 and 6035-2) spread the third and fourth encoded data with a second spreading code (p) to generate a third spread data and a fourth spread data, respectively; an adding part (6036) adds the first spread data and the third spread data together; and an adding part (6037) adds the second spread data and the fourth spread data together.

A method of regulating power for multi-node computer system components has a closed-ring path that links all the power governors and circulating in the ring is a system power number that represents the power consumption of the entire system. Meanwhile, all the governors keep counting its local power consumption. Each time the number passes a governor, the governor will add its local count onto this number, store this number for future usage, and reset its local count. When the new number returns back to the same power governor, the governor will subtract the new number with its stored number to calculate the overall system power usage within a number circulation period. The system power number overflow problem is also detected with a counter if the incoming number is smaller then the number previously stored. The counter whose counting capacity is greater than the maximum system power usage on all the nodes within a number circulation period. A single number transfer mode and multiple number transfer mode and heterogeneous multi-node components which could have different power usage configurations are employed.

A method and apparatus for dynamically adjusting the signal-to-interference ratio (SIR) threshold used to control signal transmission power in closed loop communication systems. The closed loop power control comprises an inner loop that provides up / down transmission power control commands to a transmitter based upon a comparison of the SIR for a received signal to the threshold SIR. The outer loop dynamically adjusts the threshold SIR using historic inner loop power control information. When it is detected that the inner loop is not acceptably performing power control, the target SIR is not changed, or may increased or decreased more or less than 0.5 dB or 0.5 dB / 99, respectively.

A system, apparatus and method for a closed loop system, which can be operated over a plurality of hardware platforms. Optionally, according to at least some embodiments of the present invention, the system, method and apparatus may be used for control of an energy system.

The invention discloses a cloud vehicle-road cooperative processing method, system and device and a storage medium, and the method comprises the steps: constructing a cooperative control closed-loop communication link which comprises the communication between devices in a vehicle, the communication between vehicles, and the communication between the vehicle and a cloud server; monitoring data in the cloud vehicle-road cooperation system; and according to the closed-loop communication link and the data in the cloud vehicle-road cooperation system, performing corresponding cloud vehicle-road cooperation processing through cloud vehicle-road cooperation function software. According to the cloud vehicle-road cooperative processing architecture provided by the invention, key technologies such as cloud computing, digital twinning, 5G and artificial intelligence are utilized, vehicles, roads and cloud are connected into a whole, sensing, decision making and control are fused, the computing power of an automatic driving system is expanded, the utilization rate of computing power resources in the automatic driving system is improved, communication transparency between applications is realized, and the application prospect is wide. An information island is broken through, and the actual requirements of vehicles for safety and energy efficiency and the actual requirements of industries for road traffic dynamic monitoring and planning are met.

The invention belongs to the technical field of automatic detection of electric power equipment, and specifically relates to a system for testing a power quality monitoring device and a testing method thereof. The system includes a detection host, a standard source, and a power quality monitoring device. The detection host communicates with the power quality monitoring device through a GBIP bus The standard source is connected by communication, and the standard source is electrically connected with the power quality monitoring device through the test signal line. The power quality monitoring device forms a closed-loop communication control system with the detection host through Ethernet. The system and its testing method of the present invention can not only In addition to the accuracy test of power quality indicators, data model and communication protocol test, system self-test and fault identification and alarm functions including standard source overload judgment, power quality monitoring device wiring correctness, and closed-loop test environment integrity can also be realized. Further improve the intelligence, automation and work efficiency of the power quality monitoring device test.

The invention discloses a tunnel lamp based on the visible light communication technology and a communication control method thereof, and relates to the field of LED lighting. A closed-loop communication circuit is formed through the two close-range high-speed wireless communication technologies of visible light communication and infrared communication. The problem that the number of nodes of an RS-485 bus in a tunnel lighting control mode is excessively small for the reasons of drive capability limitation, cable losses and the like can be solved, and the work of manually presetting address codes is further omitted. The communication control method is easy and convenient to operate and low in cost. Data can be uploaded to a remote management platform through a master controller, and the lighting effect can be adjusted automatically according to the brightness outside a tunnel.