Release date: 2015-04-21
The Japan Atomic Energy Research and Development Agency (JAEA) has developed a palm-sized non-invasive blood glucose sensor. This is achieved by miniaturization and high output of the mid-infrared laser, and it has been confirmed by basic experiments that the detection accuracy required for clinical needs can be achieved. JAEA envisages its use in medical institutions, public facilities, and individuals, and plans to conduct clinical trials and work with medical device companies.
In the academic speech of "The 29th Japan Medical Association General Assembly 2015 Kansai" held on April 11-13, the research director of JAEA Quantum Beam Application Research Center, Kawan Kazuo, was in "Preventive Medicine and Its Basic Technology and Analytical Methods". The branch was staged and the blood glucose sensor was described in detail with the title "Development of a non-invasive blood glucose meter using a mid-infrared laser."
Shanchuan
Non-invasive blood glucose sensors have not been implemented to date. It is estimated that the potential market for this product in Japan will reach 100 billion yen or more, and it will be more than 3.6 trillion yen worldwide.
As one of the implementation methods of non-invasive blood glucose sensor, researchers have been studying the method of using laser in the mid-infrared region. This method utilizes the fact that the mid-infrared rays are absorbed by glucose more and are less absorbed by body components other than water and alcohol. However, it is difficult to increase the output power of the laser in the mid-infrared region, and sufficient measurement accuracy (signal-to-noise ratio) is not obtained. The miniaturization of lasers is also difficult to achieve.
Mid-infrared laser peak intensity reached 100,000 times
Yamakawa et al. developed a fingertip-sized YAG laser. A semiconductor laser that oscillates a YAG laser and an optical parametric oscillator that oscillates with a YAG laser are combined to produce a mid-infrared laser with a peak intensity of 100,000 times.
The YAG laser has an oscillation wavelength of 1 μm and is converted into a mid-infrared light having a wavelength of 9 μm by an optical parametric oscillator. Because the laser output frequency is up to several hundred Hz, and no multi-variable analysis is required, the test takes only about 3 seconds to complete. The pulse width of the laser is at the ns level, and the human body is "not painful". The mouse type laser irradiation device capable of measuring at the fingertip is further developed to achieve miniaturization. Successfully reduced the non-invasive blood glucose sensor to the size of the palm.
JAEA uses a newly developed prototype to test four healthy people with a sugar value ranging from 70 to 160 mg/dL, and actually verified the product. All testers' measurements are "within the accuracy required by the clinical requirements" compared to the measurements of the blood collection blood glucose meter.
In the future, JAEA will continue to verify the effectiveness of the meter in a wide range of blood glucose values, and will also go through relevant procedures to conduct clinical trials for diabetic patients. This method "may also be applied to the measurement of non-glycemic indicators such as dyslipidemia."
Source: MEMS
What is Indoor PTZ Camera
PTZ: In the security monitoring application, it is the abbreviation of Pan/Tilt/Zoom, representing the pan tilt omnidirectional (up and down, left and right) movement, lens zoom and zoom control.
PTZ: In the security monitoring application, it is the abbreviation of Pan/Tilt/Zoom, representing the pan tilt omnidirectional (up and down, left and right) movement, lens zoom and zoom control.Automatic tracking is divided into three types: one is through embedded video encoder, also known as intelligent visual server; the other is PC software; the other is to directly write the tracking algorithm to DSP chip, and then design the DSP chip as a hardware circuit on the high-speed ball motherboard, and the high-speed ball is directly read. Among the three types, the third type is used most in the current market.
The intelligent vision PTZ automatic tracking and monitoring system consists of an intelligent vision server (responsible for intelligent analysis and command) and a high-speed spherical camera (responsible for tracking targets). The automatic PTZ intelligent tracking function enables the camera to automatically PTZ drive its own PTZ and zoom lens, and automatically control the PTZ camera to rotate the PTZ in all directions and zoom the lens, and perform visual oriented automatic tracking for the locked moving target, so as to ensure that the tracking target continues to appear in the center of the lens with a close-up image, so that the security personnel can see the information more clearly, It can also be used for obtaining evidence afterwards. The automatic PTZ tracking module makes up for the narrow field of vision of fixed camera monitoring, which is an essential function of a perfect security monitoring system.
The intelligent vision PTZ automatic tracking and monitoring system has the target analysis function, and is equipped with a high-resolution camera, a large magnification optical zoom lens and a high speed PTZ, which can automatically capture suspicious targets quickly and accurately. By setting the preset position intelligent vision PTZ automatic tracking monitoring system, the preset position scanning, automatic cruise and other functions can be realized, and many special requirements of intelligent monitoring can also be realized. In addition, the intelligent vision PTZ automatic tracking and monitoring system also has the advantages of beautiful appearance and strong concealment, so it is very suitable for public security intelligent monitoring applications in airports, squares, rail transit, villas, government administrative units, military regions, museums and other types of places.
The automatic PTZ tracking and monitoring system integrates optics, electronics, machinery, information processing and network, and is composed of camera, power transmission, motion control device, image analysis, recognition, compression and communication based on high-speed parallel processing. It has the functions of video camera, position control, orientation and lens preset, moving object detection, recognition and tracking, flame and smoke detection and alarm, etc. It can be widely used in buildings, banks, airports, stations, customs, transportation, power, factories and mining enterprises and other security monitoring occasions.
Indoor PTZ Camera,Indoor PTZ Camera,Surveillance Wireless Security Camera,Wireless Security CCTV
Indoor PTZ Camera,Indoor PTZ Camera,Surveillance Wireless Security Camera,Wireless Security CCTV
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