9results about How to "Simple hardware architecture" patented technology

The invention provides a leaky-wave antenna and a frequency-modulated continuous wave generation method based on the leaky-wave antenna, and relates to the field of millimeter-wave radar, and the method comprises the steps: constructing a space-time coding matrix, configuring a radiation unit state regulation and control beam direction in a space domain, modulating a radiation unit state switching rule in a time domain to generate a frequency-modulated continuous wave, and achieving space-time dual-domain regulation and control. And frequency-modulated continuous waves with controllable bandwidth are generated. The space-time coding leaky-wave antenna is formed by alternately arranging 1-bit radiation units in an upper row and a lower row, switching of radiation / non-radiation states is achieved by loading a synchronous bias PIN diode across an annular gap, a space-time coding matrix is constructed, the states of the radiation units are configured in a space domain to regulate and control the wave beam direction, and the space-time coding leaky-wave antenna is formed. Modulating the switching rule of the radiation unit in a time domain, and generating a frequency-modulated continuous wave; the radiation efficiency is improved by the alternative arrangement of the radiation units, the control difficulty and the hardware cost are reduced, multiple functions are integrated into a single device, and the problem of low integration level of the traditional separation architecture is solved.

The invention provides a mobile robot unknown static target surrounding control method based on image vision, which comprises the following steps: acquiring an image containing an unknown static target, and extracting pixel coordinates of target feature points in an image plane; based on the internal reference of the monocular camera, converting the pixel coordinate into a normalized image plane coordinate, and constructing an image error signal according to the normalized image plane coordinate and an expected steady-state coordinate corresponding to the expected surrounding radius; calculating a forward linear velocity control quantity and a steering angular velocity control quantity of the mobile robot; the control quantity is output through a closed-loop control structure so as to synchronously realize two control targets: driving an image error signal to converge to an expected steady-state coordinate, and ensuring that a target feature point is always in an effective view range of a monocular camera in the whole surrounding control process; and outputting the forward linear velocity control quantity and the steering angular velocity control quantity obtained by calculation to a motion execution mechanism of the mobile robot, and driving the mobile robot to execute fixed-distance surrounding control on the unknown static target at an expected surrounding radius.

The invention relates to the technical field of semiconductors, and discloses a double-gate two-dimensional transistor for multifunctional storage and logic calculation, which comprises a substrate, a floating gate layer, a tunneling layer, a channel layer, a top gate insulating layer, a bottom gate electrode, a top gate electrode, a source electrode and a drain electrode, the substrate is an N-type single-polished silicon oxide wafer, the floating gate layer is a graphene layer, the tunneling layer is a hexagonal boron nitride layer, the channel layer is a molybdenum disulfide layer, and the top gate insulating layer is a hexagonal boron nitride layer; the floating gate layer is arranged on the upper surface of the substrate, the tunneling layer covers the upper surface of the floating gate layer, the channel layer is arranged on the upper surface of the tunneling layer, and the top gate insulating layer covers the upper surface of the channel layer. By means of a heterogeneous stack structure of h-BN / MoS graphene and a double-gate independent regulation and control mechanism, single device integration of light perception, nonvolatile storage and logic operation is achieved, additional splicing links of sensing, storage and calculation units in a traditional system are omitted, and a hardware architecture is greatly simplified.

This invention relates to the field of high-performance embedded real-time operating system application technology, and provides a method for task processing and human-machine interface processing on a display console based on VxWorks SMP, including: S1: Building a display console with a computer installed, configuring various control components and a display, and using the VxWorks SMP system to concurrently execute the task processing and human-machine interface processing functions that traditionally require two separate computers on the display console on this computer; S2: Developing and generating system-related project files using VxWorks development tools, and allocating and configuring task processing threads, human-machine interface processing threads, and control response underlying processing tasks, while configuring inter-task cooperation and protection mechanisms; S3: Writing a script program, guided by the VxWorks system, to load the control response underlying processing task binding project, task processing thread project, and human-machine interface processing thread project step by step. This solves the difficulty of concurrent operation of display console task processing and human-machine interface processing in VxWorks SMP.

The present disclosure relates to a charging cabinet and a charging system. The charging cabinet comprises a controller, a plurality of battery storage units and a plurality of battery charging units; wherein the plurality of battery storage units and the plurality of battery charging units are in communication connection with the controller; the controller is used to control the running state of at least one battery storage unit and the on-off state of the charging function of at least one battery charging unit. By directly connecting the plurality of battery storage units with the controller in communication, it is not necessary to separately set a respective controller for each battery storage unit, and the plurality of battery storage units use the same controller to control the running state, which simplifies the hardware architecture of the charging cabinet and also reduces the problem of more failure points caused by complex architecture.

The invention relates to the technical field of robot navigation, and discloses a robot navigation method and device based on multi-source data fusion, and the method comprises the steps: carrying out the fusion processing of the multi-source data of a robot, obtaining the environment map of the current environment of the robot and the pose of the robot, and obtaining the position of the robot according to the visual image data and the laser point cloud data; obstacle information in the current environment is recognized, the optimal path of the robot from the current position to the target end point position is determined according to the environment map, the robot pose and the obstacle information, a motion control instruction is generated according to the optimal path, and the robot is controlled to run according to the motion control instruction. Therefore, by implementing the method, the determination accuracy of the map and the pose of the robot can be improved through multi-source data fusion, the obstacle recognition accuracy is improved, and the stability, high efficiency and safety of autonomous navigation of the robot are further improved.

The invention relates to a multi-protocol mixed signal conversion device, method and equipment based on an MVB bus, and the device comprises an MVB bus interface circuit which is used for connecting a signal host and processing an MVB bus signal; the main management unit is connected with the MVB bus interface circuit; the RS485 interface circuit is connected with the main processing unit and is used for being connected with external RS485 equipment; the analog signal output circuit is used for outputting an analog control signal to drive an external actuator according to the digital quantity instruction output by the main processing unit; the main processing unit is configured to execute an MVB protocol stack, manage an RS485 communication protocol, control acquisition and output of analog control signals, dynamically configure a data mapping relation, and realize bidirectional data conversion between MVB process data and RS485 data and between the MVB process data and analog signal data according to the data mapping relation. Compared with the prior art, the system has the advantages of high integration level, flexible configuration, high reliability, good economical efficiency and the like.

This invention discloses an arithmetic logic circuit suitable for balanced ternary systems, comprising a unary balanced ternary operation circuit, a balanced ternary half-adder circuit, a balanced ternary full-adder circuit, and a balanced ternary multiplier circuit. Single-input logic conversion is achieved through the combination of polarized ternary inverters and transistors. The half-adder consists of a basic unit and a transmission gate, realizing two-bit summation and carry output. The full-adder employs two cascaded half-adders and optimizes the carry path, significantly shortening the critical path and reducing the number of transistors. The multiplier uses the basic unit as the control core and combines it with a standard ternary inverter to achieve accurate multiplication. This invention overcomes the interconnection bottleneck of traditional binary logic, avoids the high hardware overhead of unbalanced ternary logic circuits in signed number calculations, and avoids the accuracy loss of approximate calculations in existing balanced ternary logic circuits. It has advantages such as simplified structure, low latency, low power consumption, and accurate operation, and is suitable for high-performance computing scenarios such as artificial intelligence, big data, and very large-scale integrated circuits.

The application discloses a three-dimensional activity track tracking and measuring and recording method of animals based on a depth camera, and mainly comprises the following steps: S1, installing the depth camera at the front side of a transparent cage at a distance of 1.5-2 m, adjusting the distance according to the size of the cage, and making the field of view cover the front of the cage and the picture as large as possible; S2, accurately positioning eight vertexes in the cage; S3, acquiring and removing the background noise points in real time; S4, simultaneously measuring and recording the three-dimensional track data in real time, calling the infrared camera of Kinect2.0, synchronously recording the four-part picture, and facilitating the experimenter to review the data; and the method is suitable for measuring the activity amount, movement, muscle tension and other related behavior indexes of experimental animals having three-dimensional activities in the cage, such as accurate activity amount, bounce frequency, position preference, movement track, whether there is an activity mode, track abnormality and the like, and the measurement of the indexes is helpful to the modeling of various senile degenerative diseases, the effect evaluation of drug effect and the effect evaluation of rehabilitation therapy.