Zobrazeno 1 - 10
of 15
pro vyhledávání: '"A M, Tokmakov"'
Publikováno v:
2022 XXXI International Scientific Conference Electronics (ET).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d256080377e87ec383fdec628dcd8a13
https://doi.org/10.1109/et55967.2022.9920335
https://doi.org/10.1109/et55967.2022.9920335
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2021 XXX International Scientific Conference Electronics (ET).
In the last few years, IoT devices have multiplied their number and functionality. These devices are located all over the world, and batteries are their main source of energy. It is extremely important to reduce the energy consumed by the sensor node
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33d5234becedd1dea1f1bbd2c208fc69
https://doi.org/10.1109/et52713.2021.9580055
https://doi.org/10.1109/et52713.2021.9580055
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2021 XXX International Scientific Conference Electronics (ET).
In this article, we present a successfully designed and tested system for measuring low currents from wireless sensor nodes. In the last few years, IoT devices have multiplied their number and functionality. These devices are located all over the wor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6f07654c69a4c0d474ef47bd28ac4e5
https://doi.org/10.1109/et52713.2021.9579667
https://doi.org/10.1109/et52713.2021.9579667
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2021 12th National Conference with International Participation (ELECTRONICA).
Over the last few years, IoT devices have multiplied their number and functionality. These devices are located all over the world, and batteries are their main source of energy. These batteries are short-lived and full of dangerous chemicals that har
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88425b32ec580f417321445c7176788a
https://doi.org/10.1109/electronica52725.2021.9513680
https://doi.org/10.1109/electronica52725.2021.9513680
Autor:
Dimitar M. Tokmakov, Stanislav Asenov
Publikováno v:
2021 12th National Conference with International Participation (ELECTRONICA).
Over the last few years, IoT devices have multiplied their number and functionality. These devices are located all over the world and batteries are their main source of energy. In this paper the usage of wireless LoRaWAN sensor node in smart Internet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62004ec239365b93c211c6cfa3b925bf
https://doi.org/10.1109/electronica52725.2021.9513667
https://doi.org/10.1109/electronica52725.2021.9513667
Autor:
Dimitar M. Tokmakov, Stanislav Asenov
Publikováno v:
2020 28th National Conference with International Participation (TELECOM).
As a major source of energy, wireless Internet of Things (IoT) endpoints rely on batteries. The batteries are short-lived, large in size, and bulky. But the most important thing is that batteries are extremely harmful to the environment. This necessi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5efed4d4073bd9d55da697980810a61c
https://doi.org/10.1109/telecom50385.2020.9299539
https://doi.org/10.1109/telecom50385.2020.9299539
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2020 XXIX International Scientific Conference Electronics (ET).
The paper presents a method for optimizing the power consumption of the LoraWAN sensor node using the ESP32 microcontroller. We use an Espressif ESP32 microcontroller, a BMP280 pressure sensor, and a SX1276 LoRaWAN transmitter. By using the Ultra-Low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf29d6c3b16903c69fe9273edbdd2e23
https://doi.org/10.1109/et50336.2020.9238204
https://doi.org/10.1109/et50336.2020.9238204
Publikováno v:
2020 XXIX International Scientific Conference Electronics (ET).
This paper proposes an extensible and flexible 4 layer network architecture for integrating data from heterogeneous wireless sensor networks with the open and private cloud structures. The proposed architecture has a number of advantages over the exi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec8bc46643798f9b203cbc34485033e0
https://doi.org/10.1109/et50336.2020.9238256
https://doi.org/10.1109/et50336.2020.9238256
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2020 XI National Conference with International Participation (ELECTRONICA).
In this paper, we present a project of ultra-Iow-power sensor nod for IoT applications with LoRaWaN interface, successfully designed and tested. The main features of this design are the ultra-low power consumption of the sensor node in sleep mode, lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb4527b8bf680522ffc04097776dd259
https://doi.org/10.1109/electronica50406.2020.9305121
https://doi.org/10.1109/electronica50406.2020.9305121
Autor:
Stanislav Asenov, Dimitar M. Tokmakov
Publikováno v:
2020 XI National Conference with International Participation (ELECTRONICA).
Simulating the open loop gain of an amplifier circuit is a highly misunderstood subject in Electrical and Electronics Engineering. In order to address that issue we describe four methods that we use to successfully simulate an operational amplifier o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8af903ffbfb6aa3abe167d45bec9b1ca
https://doi.org/10.1109/electronica50406.2020.9305128
https://doi.org/10.1109/electronica50406.2020.9305128