期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Design and validation of a handheld capnography device for cardiopulmonary assessment based on the Arduino platform
1
作者 Om Prakash Singh Ismail M.El-Badawy M.B.Malarvili 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2021年第6期42-54,共13页
The design of a handheld capnography device is in great demand because of its effective and practical uses in all cardiac arrest resuscitations,according to the recommendation of the American Heart Association.Herein,... The design of a handheld capnography device is in great demand because of its effective and practical uses in all cardiac arrest resuscitations,according to the recommendation of the American Heart Association.Herein,a handheld capnography device that can be used in clinical settings and the home environment is reported.The proposed device was developed by using an infrared CO_(2)sensor,Arduino Mega2560,and a high-resolution display(2.8").Furthermore,two rechargeable batteries(7.6 V,0.99 A)and a secure digital card with a capacity of 16 GB were incorporated to increase the portability and usability of the device.Algorithms were implemented to measure standard features,namely,inspired CO_(2)(ICO_(2)),end-tidal CO_(2)(EtCO_(2)),and re-spiratory rate(RR).The features of 15 healthy subjects were recorded by using the developed prototype and the standard capnography device(Capnostream^(TM)20 Model CS08798).Validation was performed with Bland-Altman plots.Findings revealed that mean differences±standard deviations for the set limits of ICO_(2),EtCO_(2)and RR were 0.29±1.30 millimeters of mercury(mmHg),0.15±1.77 mmHg and 0.40±0.97 breaths per minute(bpm),respectively.Most of the differences among device measurements across all features fell within the 95%limits of agreement.Thus,the developed device may help manage respiratory distress conditions in and outside of a hospital setting. 展开更多
关键词 arduino board capnogram carbon dioxide sensor CARDIORESPIRATORY monitoring system
下载PDF
A Design of Remote-Controlled Chalkboard Eraser
2
作者 Haohua Chen Qidong Zhou 《Natural Science》 2020年第11期688-698,共11页
Chalkboard erasers that are commonly used in many schools and education organizations have <span>the </span><span>poor ability in removing the dust off the chalkboard and collect them. The dust that ... Chalkboard erasers that are commonly used in many schools and education organizations have <span>the </span><span>poor ability in removing the dust off the chalkboard and collect them. The dust that is not collected will be taken into human bodies via inhalation, which will lead to respiratory diseases. Therefore, it is crucial to design a chalkboard eraser that can collect the dust effectively. If the eraser can be controlled both remotely and manually by people, it can further reduce the amount of dust taken in by human bodies. To achieve remote control, a micro-controller is needed to transfer the infrared radiation (IR) into signals that can control electric motors to move around on the chalkboard. Furthermore, the microfiber is also used as the cleaning material to improve the performance of dust cleaning and collecting. A vacuum pump is needed to create negative pressure between the eraser and the chalkboard so that the eraser can stick to it. The result shows a stronger ability in removing and collecting dust. With the help of the Arduino UNO board, the remote control is successfully achieved, and the eraser can move on the chalkboard freely according to the order.</span> 展开更多
关键词 Remote-Control arduino UNO Board Passive Infrared Radiation Sensor MICROFIBER Vacuum Pump
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部