摘要:
A method of recognizing a tag in an RFID reader includes: obtaining a predetermined frame size in the case where throughput obtained by reflecting a slot length based on the remaining number of tags except for recognized tags within a frame progressing current tag recognition that substantially has a maximum value; and when the current frame size is different from the predetermined frame size, stopping the current progress of frame and changing the current frame size into the expected frame size. The method of recognizing a tag may further include when the current frame size is equal to the expected frame size, changing the current frame size into the frame size that does not cause a throughput inversion phenomenon for the remaining number of tags to be recognized within the frame progressing the current tag recognition. By the throughput inversion phenomenon, the occurrence of throughput loss can be prevented and the tag recognition time is reduced to recognize the tags at high speed.
摘要:
Disclosed is a navigation apparatus and method using RFID that is capable of providing information on a current position and a moving direction to the destination. An antenna unit has directivity in a predetermined direction and receives at least one radio signal transmitted from at least one RFID tag. An RFID reader converts the at least one radio signal provided by the antenna unit into information on the at least one RFID tag in a digital form, measures the reception strength of the at least one radio signal, and provides the information on the at least one RFID tag and information on the received strength. A control unit determines the current position and moving direction on the basis of the information on the at least one RFID tag and the information on the reception strength provided from the RFID reader. Accordingly, it is possible to accurately recognize the current position and the moving direction of the navigation apparatus and guide the moving direction to the destination.
摘要:
A security system using a laser range finder that can precisely determine an existence and a location of an intruder, and a method of detecting the intruder using the laser range finder are provided. The security system using a laser range finder, the security system includes: the laser range finder emitting laser beam, receiving the reflected laser beam, measuring a distance between the laser range finder and a target object, and detecting an existence and a location of an intruder; and at least one reflective means reflecting the emitted laser beam toward the laser beam finder, wherein at least one reflective means is spaced by a predetermined distance of the laser range finder and is installed a predetermined distance from the laser range finder.
摘要:
A method of recognizing a tag in an RFID reader includes: obtaining a predetermined frame size in the case where throughput obtained by reflecting a slot length based on the remaining number of tags except for recognized tags within a frame progressing current tag recognition that substantially has a maximum value; and when the current frame size is different from the predetermined frame size, stopping the current progress of frame and changing the current frame size into the expected frame size. The method of recognizing a tag may further include when the current frame size is equal to the expected frame size, changing the current frame size into the frame size that does not cause a throughput inversion phenomenon for the remaining number of tags to be recognized within the frame progressing the current tag recognition. By the throughput inversion phenomenon, the occurrence of throughput loss can be prevented and the tag recognition time is reduced to recognize the tags at high speed.
摘要:
A security system using a laser range finder that can precisely determine an existence and a location of an intruder, and a method of detecting the intruder using the laser range finder are provided. The security system using a laser range finder, the security system includes: the laser range finder emitting laser beam, receiving the reflected laser beam, measuring a distance between the laser range finder and a target object, and detecting an existence and a location of an intruder; and at least one reflective means reflecting the emitted laser beam toward the laser beam finder, wherein at least one reflective means is spaced by a predetermined distance of the laser range finder and is installed a predetermined distance from the laser range finder.
摘要:
Disclosed is a navigation apparatus and method using RFID that is capable of providing information on a current position and a moving direction to the destination. An antenna unit has directivity in a predetermined direction and receives at least one radio signal transmitted from at least one RFID tag. An RFID reader converts the at least one radio signal provided by the antenna unit into information on the at least one RFID tag in a digital form, measures the reception strength of the at least one radio signal, and provides the information on the at least one RFID tag and information on the received strength. A control unit determines the current position and moving direction on the basis of the information on the at least one RFID tag and the information on the reception strength provided from the RFID reader. Accordingly, it is possible to accurately recognize the current position and the moving direction of the navigation apparatus and guide the moving direction to the destination.
摘要:
A system and methods for controlled gene delivery comprising condensed nucleic acids complexed with polylinkers, wherein the complexes are covalently and/or non-covalently bound to the surface of a substrate capable of supporting cell adhesion. The gene delivery system achieves temporal and spatial control of nucleic acid delivery to a target cell or cells through control of complex density on the surface of the support substrate, and reversibility of the attachment of the polylinker to the support substrate. The system and method of the invention can be used to create spatial patterns of gene expression, and in tissue engineering, high throughput screening, and gene therapy applications.
摘要:
A system and methods for controlled gene delivery comprising condensed nucleic acids complexed with polylinkers, wherein the complexes are covalently and/or non-covalently bound to the surface of a substrate capable of supporting cell adhesion. The gene delivery system achieves temporal and spatial control of nucleic acid delivery to a target cell or cells through control of complex density on the surface of the support substrate, and reversibility of the attachment of the polylinker to the support substrate. The system and method of the invention can be used to create spatial patterns of gene expression, and in tissue engineering, high throughput screening, and gene therapy applications.
摘要:
The invention is directed to scaffolds containing porous polymer material prepared by a process of gas foaming/particulate leaching and a wet granulation step prior to gas foaming and particulate leaching, particularly having a characteristic interconnected pore structure, as well as sustained release of protein, DNA or cells, and to methods for using such porous polymer material for preparation of scaffolds, particularly for tissue engineering.
摘要:
The invention is directed to scaffolds containing porous polymer material prepared by a process of gas foaming/particulate leaching and a wet granulation step prior to gas foaming and particulate leaching, particularly having a characteristic interconnected pore structure, as well as sustained release of protein, DNA or cells, and to methods for using such porous polymer material for preparation of scaffolds, particularly for tissue engineering.