50results about How to "Reduce Control Latency" patented technology

Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended.

An audio decoding device includes a playback speed change device for changing, with respect to a decoded audio signal obtained by a decoding device, the playback speed thereof; an output buffer for temporarily storing a digital audio signal outputted from the playback speed change device; a read out device for reading out the digital audio signals stored in the output buffer at predetermined time intervals; a playback speed control device for controlling the playback speed change device on the basis of the number of packets stored in the jitter buffer; and decoding timing control means for controlling the timing of decoding by the decoding device on the basis of the amount of data stored in the output buffer.

Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended.

A touch sensitive system includes a touch surface, a display, and a latency control system. The latency control system reduces the latency between a touch event occurring on the touch surface and a graphical response displayed by the display. Specifically, the latency control system is a feedback system that synchronizes touch scan and display operations. The touch scan and display operations are synchronized by adjusting timing parameters, such as the start times and frequencies of the scan and display operations. Thus, the latency control system is an adaptable system that may reduce latency even when the processing times of various operations vary over time.

A method for controlling the speed of a motor vehicle (10), in which an acceleration-demand signal (asetpoint) is generated which represents a positive or negative setpoint acceleration of the vehicle, and either a control command (A) is output to the engine or a control command (B) is output to braking system (24, 26) of the vehicle as a function of this signal, wherein a signal (F) for preloading the braking system is output when the acceleration-demand signal (asetpoint) falls below a threshold value which lies above a value at which the braking system (24, 26) is activated.

In the start up of the magnetic disk apparatus, the phase relation between servo information numbers recorded on the magnetic disk 15 in advance and the eccentricity of the magnetic disk is learned. In the positioning of the magnetic head, a signal generated by multiplying, by a weight coefficient, a sine wave or a cosine wave the phase the revolution frequency of the magnetic disk is fed forward as an eccentricity control amount, whereby the eccentricity is compensated.

A control device for a throttle valve, by dispensing a position sensor for the throttle valve, can reduce a cost of the sensor and which is excellent in durability and reliability and is reduced in its control delay. The control device includes an air flow sensor 1 for detecting an air flow rate flowing through a intake pipe of an internal combustion engine, a motor 33 for driving the throttle valve 2 disposed in the intake pipe and an ECU 15 for controlling the driving operation of the motor. The ECU 100 feedback-controls the output of the air flow sensor so that a difference between the output of the air flow sensor 1 and an air flow rate required for the engine reduces.

The apparatus for automatically adjusting a direction of a light axis of a vehicle headlight includes a steering angle sensor detecting a steering angle of a steering wheel of a vehicle, and a swivel control unit performing a swivel control by which the direction of the light axis of the vehicle headlight is adjusted to the target direction in accordance with the steering angle detected by the steering angle sensor. The swivel control unit varies sensitivity or responsiveness of the swivel control depending on a value of the steering angle detected by the steering angle sensor.

A resource multiplexing method and device, a storage medium, a terminal and a base station are provided. The method includes the following steps: judging whether there is overlap of resource allocation in time domain based on first DCI (Downlink Control Information), wherein the first DCI is obtained from a control area of a downlink slot; if the judgment result shows that there is overlap of resource allocation in time domain, obtaining a multiplexed resource bitmap based on information allocated in a non-controlled area of the downlink slot; and determining a control resource multiplexed bya PDCCH (Physical Downlink Control Channel) to a PDSCH (Physical Downlink Shared Channel) based on the first DCI and the multiplexed resource bitmap. Through the scheme provided by the invention, thelocation of a multiplexed resource can be indicated with less blind test, small control delay and low energy consumption, so that user equipment can efficiently multiplex the resources used by the control channel.

The invention provides a control method and device for a rectifier. Output-side voltage and reference voltage of the rectifier are acquired, and the voltage difference between the reference voltage and the output-side voltage is determined; proportional integral control is performed on the voltage difference, and reference current is acquired; an input-side voltage peak and current components of the rectifier are acquired; the current components are subjected to filtering processing, and a filtering result is obtained; the current deference is obtained according to the reference current and the filtering result; the controlling quantity is acquired by performing proportional control processing on current deviation; a reference control signal is determined according to the control quantity and the voltage peak. The method and the device have the beneficial effect of stabilizing output voltage of the rectifier. The invention further provides a rectifier control circuit with the same beneficial effect.

The invention discloses a low-latency control method convenient for virtual reality object control, and the method comprises the following steps: obtaining a corresponding virtual reality configuration file from a virtual reality server when a virtual reality display request is received, obtaining virtual reality scene video information, obtaining video frames forming a virtual reality scene video, wherein N is greater than or equal to 2, and then encoding, transmitting and decoding the obtained video frame through an encoding and decoding algorithm. The method has the advantages that the virtual reality object is convenient to control, the refreshing frequency of the virtual reality scene is improved, the control delay of the virtual reality object can be effectively reduced, and the problems that the processing speed of a virtual reality server becomes slow due to an existing control mode, meanwhile, the response of virtual reality interaction is too slow due to too large transmission delay, and therefore, the problem that the virtual reality object cannot be matched with the application scene is solved, and the user experience of virtual reality can be improved.

The invention relates to the technical field of medical rehabilitation instruments, in particular to an action assisting device based on surface myoelectricity and an action intention identification method. A control circuit board receives a bioelectricity signal transmitted by a sensing unit and performs bioelectricity signal feature extraction; and extracted bioelectricity signal features are sent to a classifier for linear discriminant analysis, a classification result is sent to a voter, the result of the voter is compared with a threshold comparison result, a final motion intention result is output and an instruction is transmitted to a driver, so that the driver generates a driving force to control a hand exoskeleton to act. Two actions of stretching and bending are achieved by one motor, the pay-off speed is adjusted in a small range, the self-locking return stroke gap is eliminated, the safety and reliability of a self-locking mechanism are greatly improved, the difficulty of inaccurate electric signal recognition motion intention is overcome, the control delay of the whole system is reduced, and the action intention of a user can be directly reflected.

The invention relates to the technical field of human-computer interaction, in particular to an action assisting device based on brain plasticity and a control method and circuit thereof. A driving mechanism adopts a linear driving design, so that the driving mechanism and an executing mechanism can be separately placed, namely, the driving mechanism can be placed on the arms, waist or pockets ofa user and even can be placed in a backpack carried on the back, so that the whole equipment is light in weight and convenient to wear; in addition, a classifier, a voter, threshold comparison and self-adaptive control are combined together, which overcomes the difficulty of inaccurate recognition of motion intention by electromyographic signal, and reduces the control delay of the entire system,so that the motion intention of the user can be directly reflected; and in the control of the executing mechanism, a self-adaptive compliance control mode is adopted, main power estimation of the electromyographic signal is combined, power can be provided as required, and therefore better human-computer interaction experience and rehabilitation effect can be achieved.

The invention provides a rotorcraft power transmission line inspection method and device in an unknown environment, and the method comprises the steps: obtaining self information and the image information of a power transmission line at a position in real time, and transmitting the information to a ground control system, so that the ground control system generates model parameters and path information, and the flight control signals are sent back to the rotorcraft to be processed in combination with information of the rotorcraft to generate flight control signals; executing corresponding flight operation according to the flight control signal so as to inspect the power transmission line, sending generated increment information to a ground control system so as to generate new model parameters and path information, and sending the new model parameters and path information to the rotorcraft for updating; and processing according to the new model parameters and path information in combination with own information to generate a new flight control signal. According to the invention, tasks with large calculation amount are transmitted to the ground control system, so that the control delay of the rotorcraft control system is reduced, and the waste of electric energy is also reduced.

The invention discloses an axial split-phase hybrid excitation type magnetic suspension motor control system, which directly controls the electromagnetic torque and suspension force of a motor, saves control delay caused by controlling intermediate quantity, effectively improves the response speed and operation performance of the motor, and meanwhile, in a rotating speed control ring and a radial displacement control ring, the axial split-phase hybrid excitation type magnetic suspension motor control system has the advantages that the control delay is reduced; according to the method, traditional proportional-integral-differential control is replaced by second-order sliding mode control with higher robustness and higher response speed, a reference electromagnetic torque is output after a rotating speed error is adjusted by a second-order sliding mode controller, and further, the electromagnetic torque of the motor is directly controlled; and after the radial displacement error is adjusted by the second-order sliding mode controller, reference suspension force is output, and the suspension force of the motor is further directly controlled, so that second-order sliding mode direct torque and direct suspension force are formed, and the response speed, the anti-interference capability and the suspension performance of the magnetic suspension motor can be effectively improved.