摘要:
A smart phone or Bluetooth ear-set having a digital two-way radio function according to the present invention comprises: a receiver unit to which an analogue voice signal is input; a first amplification unit which amplifies the analogue voice signal that is input by the receiver unit; an A/D converter which converts the amplified analogue voice signal that is output by the first amplification unit into a digital voice signal; a control unit which receives and outputs the digital voice signal that is output by the A/D converter, and which outputs a digital voice signal that is received by an antenna and is input; an RF transceiver which controls an input of a signal that is received by the antenna to the control unit, and a transmission of a signal that is output by the control unit using the antenna; a D/A converter which converts the digital voice signal that is output by the control unit into an analogue voice signal; a second amplification unit which amplifies the analogue voice signal that is output by the D/A converter; and a voice output unit which externally transmits the analogue voice signal that is output by the second amplification unit, wherein the control unit is characterised by facilitating a full-duplex communication with other wireless communication devices using a time division function control of the antenna.
摘要:
The image analysis method may comprise the steps of: measuring a distance between a subject and an image analysis apparatus; outputting an image obtained by photographing the subject; selecting at least two feature points in the image of the photographed subject on the basis of information on the output feature points; calculating the relative size of the pre-stored original image of the subject on the basis of the measured distance; extracting feature points in the pre-stored original image of the subject, which correspond to the at least two selected feature points, on the basis of the calculated relative size; and comparing the image of the photographed subject with the original image on the basis of the selected feature points and the extracted feature points.
摘要:
Embodiments of the present invention relate to a wireless emergency bell and a method for controlling a wireless emergency bell installed in a school and a school zone, the method comprising the steps of: receiving an input signal generated by pressing a provided button by a reporter when an emergency situation occurs; generating an emergency bell signal, repeatedly transmitting the generated emergency bell signal to at least one pager and a receiver during a predetermined configuration time, and outputting a prestored alarm sound to the outside through a provided speaker; generating an emergency bell voice signal and transmitting the generated emergency bell voice signal to the at least one pager and the receiver; generating an emergency bell voice transmission completion signal indicating that the emergency bell voice signal has been completely transmitted, and transmitting the generated emergency bell voice transmission completion signal to the at least one pager and the receiver; converting an operation of the wireless emergency bell into a reception mode in which data can be automatically received from at least one pager after a configured time; receiving a pager voice signal from the at least one pager; determining whether the received pager voice signal exists, and outputting the received pager voice signal to the outside through the speaker when the received pager voice signal exists; and determining whether a mode conversion command signal is received from the at least one pager when the received pager voice signal does not exist, and converting the operation of the wireless emergency bell into a transmission mode in which data can b e transmitted to the at least one pager and the receiver when there is the received mode conversion command signal.
摘要:
A portable surveillance camera and a personal surveillance system are disclosed. More specifically, provided are a portable surveillance camera comprising a mini-camera such as a CMOS camera or a CCD camera, and a system for surveilling a predetermined place using the portable surveillance camera. The personal surveillance system receives multimedia data such as image, sound, event and control data on real time from the portable surveillance camera installed in various areas such as a house, a shop or an office with a control device connectable to a network such as a LAN or an internet, and then monitors or stores the multimedia data. Also, the personal surveillance system can search, surveille, control, edit and store multimedia data such as image, sound, event and control data for a desired period of time from data stored in the portable surveillance camera or the control device.
摘要:
The present invention relates to an intrusion detection system. The intrusion detection system is installed in a surveillance area and may comprise: an image heat ray device for measuring infrared heat generated from an intruder intruding into the surveillance area to determine an intrusion occurrence and generate an alarm signal for indicating the intrusion occurrence, generating a first image and a second image by shooting an image in the surveillance area, generating an intrusion signal including the generated alarm signal, the first image, the second image and a reference image which is an image shot prior to a situation of the intrusion occurrence in the surveillance area, and transmitting the generated intrusion signal to a controller through a frequency for a security system; the controller for receiving the intrusion signal from the image heat ray device and transmitting the received intrusion signal to a server through an Internet network; and the server for receiving the intrusion signal from the controller, transmitting the intrusion signal to the controller and a pre-mapped mobile communication terminal, extracting the alarm signal, the reference image, the first image, and the second image from the received intrusion signal, displaying the extracted alarm signal in an alarm signal display area of a display unit installed at the server, and displaying the extracted reference image, first image, and second image, on an image display screen of the display unit.
摘要:
A flight information storage system for an airplane according to the present invention may include: one or more of a video acquiring device mounted on the airplane; a recording device for recording video acquired through the video acquiring device(s) during a flight of the airplane; and a travel storage device which simultaneously stores the video data recorded by the recording device. Here, the travel storage device may be a USB cartridge, and the video acquiring device may be one or both of a digital camera and a radar device. The digital camera may include a first digital camera that is installed in front of the cockpit of the airplane to capture an image to the front of the airplane during flight, and two or more second digital cameras installed behind the cockpit of the airplane to capture an image of the instrument panel of the airplane and the area surrounding the instrument panel.
摘要:
A group communication system for managing employees according to the present invention is characterized by including: a first two-way radio carried by employees; a second two-way radio carried by managers who manage the employees; and a third two-way radio carried by a supervisor who supervises the managers, wherein each of the first to third two-way radios is provided with a first PTT button and a second PTT button, transmits a voice packet including at least one unique code set to correspond to the first PTT button in a state in which the first PTT button is pressed, transmits a voice packet including a unique code set to correspond to the second PTT button in a state in which the second PTT button is pressed, and upon receiving a voice packet including at least one unique code set to correspond to a receiving group, processes and outputs the received voice packet.
摘要:
A smart watch according to the present invention comprises: a reception unit to which an analog speech signal is inputted; a first amplification unit for amplifying the analog speech signal; an A/D converter for converting the amplified analog speech signal into a digital speech signal; a control unit for receiving and outputting the digital speech signal outputted from the A/D converter and outputting a digital speech signal received and inputted through an antenna; an RF transceiver for controlling signals such that the signal received through the antenna is inputted to the control unit, and the signal outputted from the control unit is transmitted through the antenna; a D/A converter for converting the digital speech signal into an analog speech signal; a second amplification unit for amplifying the analog speech signal; and a speech output unit for outputting the analog speech signal outputted from the second amplification unit.