Abstract:
A handheld molecular imaging navigation system comprises a multi-spectral light source module configured to provide light in a plurality of different spectrum bands in a time division control manner according to a control signal sequence to irradiate an inspected object; a time division control module configured to generate the control signal sequence; an optical signal acquisition module configured to acquire a near-infrared fluorescence image and a visible light image of the inspected object in a time division control manner according to the control signal sequence provided by the time division control module; and a processing module configured to perform image processing on the acquired near-infrared fluorescence image and visible light image according to the control signal sequence to fuse the visible light image and the fluorescence image and output the fused image, and output a feedback signal according to the acquired near-infrared fluorescence image and visible light image.
Abstract:
The present invention relates to wireless network technology and presents a permutation group-based channel rendezvous method for a multi-antenna cognitive radio network, allowing a cognitive user equipped with multiple antennas to achieve blind channel rendezvous without the need for clock synchronisation. The present invention defines channel hopping sequences whilst making full use of properties such as channel diversity, the closure nature of permutation groups, and multi-antenna concurrency; based on the permutation groups obtained by rotating a regular polyhedron or a regular polygon around different angles according to different types of axes of symmetry, cyclical splicing is implemented, and different antennas can, according to different rules, independently generate hopping sequences and switching channels; the sequence generating methods are various and flexible; the use of parallel search ensures that deterministic rendezvous with other cognitive users is achieved as quickly as possible and as much as possible in a limited time; and the present method is a highly efficient blind channel rendezvous method having wide applicability and suitable for use in large-scale wireless networks.
Abstract:
The present invention relates to wireless network technology and presents a permutation group-based channel rendezvous method for a multi-antenna cognitive radio network, allowing a cognitive user equipped with multiple antennas to achieve blind channel rendezvous without the need for clock synchronisation. The present invention defines channel hopping sequences whilst making full use of properties such as channel diversity, the closure nature of permutation groups, and multi-antenna concurrency; based on the permutation groups obtained by rotating a regular polyhedron or a regular polygon around different angles according to different types of axes of symmetry, cyclical splicing is implemented, and different antennas can, according to different rules, independently generate hopping sequences and switching channels; the sequence generating methods are various and flexible; the use of parallel search ensures that deterministic rendezvous with other cognitive users is achieved as quickly as possible and as much as possible in a limited time; and the present method is a highly efficient blind channel rendezvous method having wide applicability and suitable for use in large-scale wireless networks.
Abstract:
A 3D printing system comprises: a digital micro-mirror device (DMD) mobile device (1); a light source (3), fixed on said DMD mobile device (1) for emitting ultraviolet light, blue light or visible light; multiple DMDs (2) carried on the DMD mobile device (1) for receiving the ultraviolet light, blue light or visible light emitted by the light source (3) and generating 3D object section light; a lens (4) for receiving the 3D object section light reflected by the DMDs (2) and refracting and amplifying the 3D object section light; a material box (5) for containing and providing printing materials; a workbench (6), wherein the 3D object section light refracted by the lens irradiates the printing materials provided by the material box (5) to solidify the printing materials into a 3D object carried on the workbench (6); and a lifting device (7) for lifting the workbench (6). By changing a system structure and moving an original DMD or splicing multiple DMDs, the 3D printing system of the present invention flexibly prints a 3D printing object having a larger sectional area and a constant DPI.
Abstract:
The present invention discloses an upper limb rehabilitation robot system comprising a computer (8) and a rehabilitation robot (7), wherein the computer (8) is used for performing information interaction (11) with the rehabilitation robot (7), recording training information, sending control command to the rehabilitation robot (7), showing the virtual training environment, providing rehabilitation training visual feedback (14), and showing the control interface and rehabilitation training information; wherein the rehabilitation robot (7), acting as a system actuator, is connected to the computer (8) for receiving the control command from the computer (8) to complete the motion control and terminal force output, and sending sensor data to the computer (8) at the same time. The upper limb rehabilitation robot system according to the present invention may provide a various ways of active and passive training of upper limb rehabilitation, which can enhance enthusiasm for trainings of a patient and increase the efficiency of rehabilitation.
Abstract:
A system for testing performance of mobile Radio Frequency Identification tags, comprising: a test device including a mobile car and a test channel; the test channel comprises a magnetic label on a ground for labeling a test driving route of the mobile car and a framework fixed on to the ground and provided with a reading device for the RFID tags; a magnetic recognition device is provided at a bottom of the mobile car to identify to the magnetic label and the mobile car is driven along the test driving route; the plurality of RFID tags are fixed on under-test goods loaded on the mobile car; a testing equipment configured to control the reading device to identify the RFID tags fixed on under-test goods; wherein the RFID tags are fixed on to under-test goods which are loaded on the mobile car. The performance test experiment of identifying RFID tags is repeated to get the best recognition rate by adjusting the status of the reader and reader antennas and the speed of the mobile car. According to the present disclosure, individual customization on the position and angle of the reader antennas placed with and the moving speed of under-test goods may be obtained to identify all the RFID tags on the fixed position of the goods so as to provide a reference for using the RFID tags in the manufacturing lines and the logistics systems.
Abstract:
A pruning robot system, which comprises: a signal tag device (2) for detecting and storing information of trees and crops and positioning information, and assisting positioning; a robot (1) comprising a central processing device (10) for storing and analyzing data information of each part of the robot (1) and issuing action instructions to each part of the robot (1), and a positioning and navigating device (11) for positioning and navigating the robot (1), and for planning a path and providing obstacle-avoiding navigation for the robot (1) according to an electronic map; a cloud platform terminal (3), which is in connection and communication with the central processing device (10) of the robot (1) and is used for storing data of trees and crops as well as detection data of the robot (1), and for planning a path for the robot (1) through computing and experimenting according to the information data; a map building device (4) for building a three-dimensional electronic map corresponding to the plantation through field-detection by the robot (1). The pruning robot system realizes positioning in the plantation, robot (1) path planning, pruning information collection and automatic pruning.
Abstract:
A catheter or guide wire manipulating device with two-point-clamping for vascular intervention is provided, comprising a thumb component (3), a forefinger component (4), a driving component (1) and a catheter/guide wire support component (2); the thumb component (3) comprises a pair of rollers (9, 10) configured to advance or retreat the catheter/guide wire; the thumb component (3) is configured to drive the catheter/guide wire to rotate clockwise or counterclockwise through a combination motion of the components; the forefinger component (4) is configured to implement the rotation and the advancement of the catheter/guide wire by moving manually away from the thumb component (3), and returning by a pull force of a spring (27) after being released; the driving component (2) is configured to drive the thumb component (3) and the forefinger component (4); the catheter/guide wire support component comprises a Y adapter fixation configured to install a Y adapter and an entry support configured to support and guide the catheter/guide wire into a mechanism.
Abstract:
A system for testing performance of mobile Radio Frequency Identification tags, comprising: a test device including a mobile car and a test channel; the test channel comprises a magnetic label on a ground for labeling a test driving route of the mobile car and a framework fixed on to the ground and provided with a reading device for the RFID tags; a magnetic recognition device is provided at a bottom of the mobile car to identify to the magnetic label and the mobile car is driven along the test driving route; the plurality of RFID tags are fixed on under-test goods loaded on the mobile car; a testing equipment configured to control the reading device to identify the RFID tags fixed on under-test goods; wherein the RFID tags are fixed on to under-test goods which are loaded on the mobile car. The performance test experiment of identifying RFID tags is repeated to get the best recognition rate by adjusting the status of the reader and reader antennas and the speed of the mobile car. According to the present disclosure, individual customization on the position and angle of the reader antennas placed with and the moving speed of under-test goods may be obtained to identify all the RFID tags on the fixed position of the goods so as to provide a reference for using the RFID tags in the manufacturing lines and the logistics systems.
Abstract:
A digital twin-based edge-end collaborative scheduling method for heterogeneous tasks and resources includes the following steps: establishing an edge wireless network based on digital twin; constructing an edge-end collaborative scheduling problem prototype of the heterogeneous tasks and resources; performing problem conversion based on a multi-agent Markov decision process; constructing an Actor-Critic neural network model based on multi-agent deep reinforcement learning; performing offline centralized training of the neural network model by digital twin; performing online distributed execution of task offloading and computation and communication resource allocation by end devices to collaboratively process the heterogeneous tasks. The method optimizes the heterogeneous computation resource types, the task offloading ratio, the transmit power of the end devices and the computation resource allocation ratio of edge servers through digital twin, supports the on-demand offloading of heterogeneous tasks, realizes edge-end collaborative computing, and minimizes the total task processing delay.