scholarly journals On an application of node MCU Esp8266 in opening and closing the laboratory door - online practice

2021 ◽  
Vol 9 (3) ◽  
pp. 086-091
Author(s):  
Nguyen Tai Tuyen ◽  
Nguyen Quang Ngọc ◽  
Nguyen Xuan Hung
Keyword(s):  
Camera System ◽  
Security Monitoring ◽  
Door Opening ◽  
Opening And Closing

This paper presents an application of ESP8266 node MCU in building a networked laboratory door opening and closing system (NLDOC system). The article mentions the function of the ESP8266 node MCU [1-3], and the Arduino application to serve as the basis for the development of an application that connects computers and smartphones [5-6], allowing to control the door latch of the practical labs remotely via Wi-Fi combined with security monitoring through the camera system [4].

scholarly journals Sistem Pintu Otomatis Menggunakan E-KTP Berbasis Internet of Things (IoT) pada Kamar Hotel

2021 ◽  
Vol 1 (2) ◽  
pp. 85-91
Author(s):  
Yulisman ◽  
Naziful Iman ◽  
Eka Sabna ◽  
Hendry Fonda
Keyword(s):  
Research Method ◽  
Prototype Model ◽  
Card Reader ◽  
Hotel Room ◽  
Door Opening ◽  
A Value ◽  
Door Lock ◽  
Hotel Security ◽  
Opening And Closing ◽  
Internet Of Thing

The system of opening and closing the hotel room doors is already using RFID but its use is still not optimal because the card used is very expensive and the card used can only be one card for each room, so if the card is lost, you have to re-enter the card id. Therefore, digital electronic technology systems and devices are needed to make it easier to open the door and close the hotel room so that it can facilitate the hotel security system with automatic locks. This system and device uses an E-KTP and an Internet of Thing (IoT)-based Keypad and which functions to control the device using a NodeMCU while for a card reader with an RFID engine. The research method uses a model, namely with a prototype model for making systems and automatic room door locking system tools. The results and conclusions of the manufacture of hotel room automatic door locking systems and devices using an Internet of Thing (IoT)-based E-KTP equipped with a message LCD and keypad as a door opening solution if the RFID machine does not work. The security of hotel guests who stay is more guaranteed and can also make it easier for guests and hotel staff with an automatic hotel room door lock system. The results of the user's assessment of the work of a series of systems and tools to open and lock this automatic hotel room door are very good with a value of 88.7%.

Energy Saving Method for Operating CNC Machine Door

2017 ◽  
Vol 867 ◽  
pp. 272-279
Author(s):  
N. Gayathri ◽  
V.K. Shanmuganathan ◽  
K.G. Karthigayan ◽  
S. Manesh Kumar
Keyword(s):  
Energy Saving ◽  
Electric Energy ◽  
Energy Crisis ◽  
Single System ◽  
Cnc Machine ◽  
Door Opening ◽  
Different Types ◽  
Energy Consuming ◽  
Save Energy ◽  
Opening And Closing

Energy is an important aspect in our day to day life. It is important to save energy wherever possible that to electric energy. We are suffering from electric energy crisis now-a-days. In order to save electric energy alternate system is chosen and it is implemented which would save electric energy. Wasting energy for supplementary or supporting works like machine door opening and closing considered as uneconomical. Energy consuming system consumes lot of energy for supporting works. In this energy saving concept two different types of system can be coupled to work as a single system which would save much energy than before. Our concept discusses about the same. Energy wastage for operating CNC machine door is taken for consideration in our work and analysis has been done on it. A new hydraulic operating system is proposed to overcome the difficulties.

scholarly journals Demonstration of the Use of Remote Temperature Monitoring Devices in Vaccine Refrigerators in Haiti

2017 ◽  
Vol 133 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Kathleen F. Cavallaro ◽  
Jeannot Francois ◽  
Roody Jacques ◽  
Derline Mentor ◽  
Idrissa Yalcouye ◽  
...  
Keyword(s):  
Heat Exposure ◽  
Temperature Monitoring ◽  
Cold Chain ◽  
Solar Panels ◽  
Door Opening ◽  
Start Up ◽  
Data Gaps ◽  
Opening And Closing ◽  
Monitoring Devices ◽  
Routine Immunization Schedule

After the 2010 earthquake, Haiti committed to introducing 4 new antigens into its routine immunization schedule, which required improving its cold chain (ie, temperature-controlled supply chain) and increasing vaccine storage capacity by installing new refrigerators. We tested the feasibility of using remote temperature monitoring devices (RTMDs) in Haiti in a sample of vaccine refrigerators fueled by solar panels, propane gas, or electricity. We analyzed data from 16 RTMDs monitoring 24 refrigerators in 15 sites from March through August 2014. Although 5 of the 16 RTMDs exhibited intermittent data gaps, we identified typical temperature patterns consistent with refrigerator door opening and closing, propane depletion, thermostat insufficiency, and overstocking. Actual start-up, annual maintenance, and annual electricity costs for using RTMDs were $686, $179, and $9 per refrigerator, respectively. In Haiti, RTMD use was feasible. RTMDs could be prioritized for use with existing refrigerators with high volumes of vaccines and new refrigerators to certify their functionality before use. Vaccine vial monitors could provide additional useful information about cumulative heat exposure and possible vaccine denaturation.

scholarly journals Numerical modeling of cold room’s hinged door opening and closing processes

2016 ◽  
Author(s):  
R. Carneiro ◽  
P. D. Gaspar ◽  
P. D. Silva ◽  
L. C. Domingues
Keyword(s):  
Numerical Modeling ◽  
Door Opening ◽  
Opening And Closing

scholarly journals Research on reliable sealing technology of spacecraft rectangular hatch based on boundary control

2021 ◽  
Vol 2085 (1) ◽  
pp. 012019
Author(s):  
Yan Wang ◽  
Yun Li ◽  
Yuan Zhuang ◽  
Benhua Zhao ◽  
Huaxing Ren ◽  
...  
Keyword(s):  
Boundary Control ◽  
Large Diameter ◽  
Degree Of Freedom ◽  
Linkage Mechanism ◽  
Door Opening ◽  
Large Size ◽  
Compression Mechanism ◽  
Long Life ◽  
Opening And Closing ◽  
Multiple Compression

Abstract In view of the large size of the sealing surface of the space large diameter rectangular cabin door, the large number of locking mechanisms and long service life, it is difficult to adjust the multi degree of freedom attitude in the assembly process, the complex assembly and adjustment of the mechanism, the synchronization accuracy is not easy to ensure, the consistency of the multi-point seal compression rate is high, and it is not easy to control. Based on the rotation law of the spatial linkage mechanism, the precise dimension chain control of the hatch is carried out, and the attitude of the multi degree of freedom linkage is adjusted to realize the synchronous compression of multiple compression units of the compression mechanism; Based on the minimum and maximum operating force as the boundary, through the sealing stress simulation, the “boundary control” coupling assembly and adjustment technology is proposed to optimize the sealing structure and realize rapid and efficient assembly. The results show that the vacuum leakage rate is still less than 2.5×10−3 PaL/s after 2000 door opening and closing tests and sealing compression ratio are better than 15%. The long-life test verifies the feasibility and effectiveness of this method, and forms a set of high reliable and long-life sealing assembly and adjustment method of space hatch, which provides technical guidance and reference for the subsequent assembly of similar space hatch mechanisms.

scholarly journals A Study of RPSD (Rope-type Platform Safe Door) Opening and Closing Algorithm on Train Platform

2013 ◽  
Vol 20 (3) ◽  
pp. 1-12
Author(s):  
Lee, Seung-ho ◽  
Sigon Kim ◽  
정연식 ◽  
Park, Jung-sik ◽  
Kang, Hee-chan ◽  
...  
Keyword(s):  
Door Opening ◽  
Opening And Closing

scholarly journals Automation of Door Opening & Closing

2021 ◽  
Author(s):  
Vitthal Suravase ◽  
Vaibhav Shinde ◽  
Darshan Shirsat ◽  
Sahil S. Diwate ◽  
S. N. Palhe
Keyword(s):  
Air Conditioning ◽  
Ultrasonic Sensor ◽  
Reverse Direction ◽  
Door Opening ◽  
Physical Touch ◽  
Opening And Closing ◽  
Spreading Disease ◽  
The Doors

<p>In the current pandemic situation is arisen due to COVID-19, So every human has required to take precaution like wear mass, keep distancing, sanitizing hand, don't touch anything if not which not necessary. But something is like Table, door, vehicles etc. we touch so there is chance of spreading disease. In college and Offices, the peoples are meet so there are chances spreading disease due to the touching of door or any other thing on which germs are present. The project is based on automation, in which we will making an automatic opening and closing of door mechanism (home/college door). In which the door is open when the sensor on the door cut then mechanism is operated and open the door and after close automatically. So, there is no physical touch of human with door, hence it will help to prevent or reduce the spreading of pandemic disease COVID-19.<b> </b>Our project is based on Ultrasonic Sensor and Arduino, in which door is automatically opens and closes by detecting a person. As soon as a person approaches the door (at about 2 or 3 feet), the door automatically turned open and after some time (about 5 to 10 seconds), the door closes by turning in the reverse direction. Such Automatic Door Opening and closing systems are very useful as you do not need a person to standby the door and open it whenever a guest comes. Also, since the doors are opened and closed only when a person approaches the door, there is significantly less loss of air conditioning.</p>

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