An area-efficient microcontroller with an instruction-cache transformable to an ambient temperature sensor and a physically unclonable function

2017 ◽  
Author(s):  
Teng Yang ◽  
Jiangyi Li ◽  
Minhao Yang ◽  
Peter R. Kinget ◽  
Mingoo Seok
Keyword(s):  
Ambient Temperature ◽  
Temperature Sensor ◽  
Instruction Cache ◽  
Area Efficient

Digital Thermometer Design Based on Single-Chip AT89C2051

2014 ◽  
Vol 684 ◽  
pp. 245-247
Author(s):  
Hui Ping Zhang ◽  
Zheng Kun Qin
Keyword(s):  
Ambient Temperature ◽  
Temperature Sensor ◽  
Single Chip ◽  
Accuracy Class ◽  
Digital Thermometer ◽  
Measured Range ◽  
Display Mode

Single-chip AT89C2051 as the main-control component of the device, we designed a digital thermometer from the aspects of hardware, it with the aid of temperature sensor DS18B20, the device used single bus technology to detect the ambient temperature (analogue) is converted into digital quantity, it was accepted, processed, judged by single-chip microcomputerand then control and display. The temperature measured range in - 30 °C to + 120 °C, the accuracy class + 0.5 °C, four LED Nixie tube as display mode.

scholarly journals CONTROL SYSTEM FOR TEMPERATURE, HUMIDITY AND TIME PARAMETERS ON ZELIO SMART RELAY-BASED WATERING PROCEDURES

2019 ◽  
Vol 1 (1) ◽  
pp. 12-16
Author(s):  
Irfan Arif ◽  
Akbar Sujiwa
Keyword(s):  
Control System ◽  
Ambient Temperature ◽  
Temperature Sensor ◽  
Humidity Sensor ◽  
Ambient Air ◽  
Air Humidity ◽  
Human Power ◽  
Temperature And Humidity ◽  
Time Parameters

Watering plants usually done manually using human power. that has risk negligence and inaccuracy. also, in time and cost is not efficient. Another factor that can affect the quality of crops is a factor of humidity and temperature. For those reason, writers made a tool that can work according to the level of humidity and temperature automatically and continuously. This tool uses Zelio Smart Relay as automatic controller. The 808H5V5 humidity sensor and LM35 temperature sensor is used as input. The LM35 temperature sensor detect the ambient temperature, where as 808H5V5 humidity sensor detect ambient air humidity, and time of watering adapted to the Smart Relay timer. The entire sensor input is programmed using ZELIO SOFT 2. Setting the temperature and humidity when the detected 30oC and >70% as well as the timeshows at 08.30 – 09.00 am and 16.00 – 16.30 pm the pump will automatically ON.

Hybrid Temperature Sensor Network for Area-Efficient On-Chip Thermal Map Sensing

2015 ◽  
Vol 50 (2) ◽  
pp. 610-618 ◽  
Author(s):  
Seungwook Paek ◽  
Wongyu Shin ◽  
Jaeyoung Lee ◽  
Hyo-Eun Kim ◽  
Jun-Seok Park ◽  
...  
Keyword(s):  
Sensor Network ◽  
Temperature Sensor ◽  
On Chip ◽  
Area Efficient

Wireless Temperature Measurement and Alarm Device Based on Single Bus Digital Temperature Sensor

2011 ◽  
Vol 135-136 ◽  
pp. 1129-1133 ◽  
Author(s):  
Li Mei Dong
Keyword(s):  
Ambient Temperature ◽  
Temperature Measurement ◽  
Temperature Sensor ◽  
Measurement Accuracy ◽  
Measurement Range ◽  
Alarm System ◽  
Measurement Circuit ◽  
Temperature Detection ◽  
Alarm Limit ◽  
Digital Temperature Sensor

AT89S52 microcontroller was the center controler for wireless temperature measurement and alarm system, through temperature measurement circuit and remote wireless alarm circuit, realized the temperature detection and off-limit alarm of the ambient temperature. The system was composed of temperature acquisition circuit, display circuit and alarm circuit. Temperature sensor was DS18B20, real-time temperature displayed via LED displayer. Users can customize the alarm lower limit and superior limit. when the ambient temperature exceeds the alarm limit, the microcontroller will start the sound and light alarm, and remote wireless alarm. Temperature measurement range from -40 °C to +85 °C, measurement accuracy is 0.5 °C, wireless alarm distance is up to 100 meters. This system is of high precision, wide temperature measurement, and timely alarm.

scholarly journals High-Performance Temperature Sensor by Employing Screen Printing Technology

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 924
Author(s):  
Zhaojun Liu ◽  
Bian Tian ◽  
Bingfei Zhang ◽  
Zhongkai Zhang ◽  
Jiangjiang Liu ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Temperature Sensor ◽  
High Performance ◽  
Screen Printing ◽  
Treatment Process ◽  
Oxide Material ◽  
Widespread Application ◽  
Printing Technology ◽  
Wide Range ◽  
Screen Printing Technology

In the present study, a high-performance n-type temperature sensor was developed by a new and facile synthesis approach, which could apply to ambient temperature applications. As impacted by the low sintering temperature of flexible polyimide substrates, a screen printing technology-based method to prepare thermoelectric materials and a low-temperature heat treatment process applying to polymer substrates were proposed and achieved. By regulating the preparation parameters of the high-performance n-type indium oxide material, the optimal proportioning method and the post-treatment process method were developed. The sensors based on thermoelectric effects exhibited a sensitivity of 162.5 μV/°C, as well as a wide range of temperature measurement from ambient temperature to 223.6 °C. Furthermore, it is expected to conduct temperature monitoring in different scenarios through a sensor prepared in masks and mechanical hands, laying a foundation for the large-scale manufacturing and widespread application of flexible electronic skin and devices.

scholarly journals A Wearable Textile Thermograph

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2369 ◽  
Author(s):  
Pasindu Lugoda ◽  
Theodore Hughes-Riley ◽  
Rob Morris ◽  
Tilak Dias
Keyword(s):  
Measurement Error ◽  
Ambient Temperature ◽  
Wound Infection ◽  
Temperature Sensor ◽  
Absolute Temperature ◽  
Temperature Sensing ◽  
Temperature Changes ◽  
Insulating Material ◽  
Polymer Resin ◽  
Work First

In medicine, temperature changes can indicate important underlying pathologies such as wound infection. While thermographs for the detection of wound infection exist, a textile substrate offers a preferable solution to the designs that exist in the literature, as a textile is very comfortable to wear. This work presents a fully textile, wearable, thermograph created using temperature-sensing yarns. As described in earlier work, temperature-sensing yarns are constructed by encapsulating an off-the-shelf thermistor into a polymer resin micro-pod and then embedding this within the fibres of a yarn. This process creates a temperature-sensing yarn that is conformal, drapeable, mechanically resilient, and washable. This work first explored a refined yarn design and characterised its accuracy to take absolute temperature measurements. The influence of contact errors with the refined yarns was explored seeing a 0.24 ± 0.03 measurement error when the yarn was held just 0.5 mm away from the surface being measured. Subsequently, yarns were used to create a thermograph. This work characterises the operation of the thermograph under a variety of simulated conditions to better understand the functionality of this type of textile temperature sensor. Ambient temperature, insulating material, humidity, moisture, bending, compression and stretch were all explored. This work is an expansion of an article published in The 4th International Conference on Sensor and Applications.

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