Design of Temperature Remote Monitoring System Based on STM32

Lim

et al. 2021

Sensors

In this study, two-photon laser scanning microscopy (TPLSM) based on the internet of things (IoT) is proposed as a remote research equipment sharing system, which enables the remote sharing economy. IoT modules, where data are transmitted to and received from the remote users in the web service via IoT, instead of a data acquisition (DAQ) system embedded in the conventional TPLSM, are installed in the IoT-based TPLSM (IoT-TPLSM). The performance for each IoT module is evaluated independently, and it is confirmed that it works well even in a personal computer-free environment. In addition, a message queuing telemetry transport (MQTT) protocol is applied to the DAQ interface in the web service, and a graphic user interface for enabling the remote users to operate IoT-TPLSM remotely is also designed and implemented. For the image acquisition demonstration, the stained cellular images and the autofluorescent tissue images are obtained in IoT-TPLSM. Lastly, it is confirmed that the comparable performance is provided with the conventional TPLSM by evaluating the imaging conditions and qualities of the three-dimensional image stacks processed in IoT-TPLSM.

Section: Discussionmentioning

confidence: 99%

IoT-Based Research Equipment Sharing System for Remotely Controlled Two-Photon Laser Scanning Microscopy

Lim

et al. 2021

Sensors

“…Cloud computing ensures that a company's systems and services are always available, allowing it to get up and running faster than if it had to dedicate a room for its own server, which is usually accompanied by a variety of services and maintenance activities, including routers, switches, firewalls, database servers, and mail servers, among other things, all of which incur additional costs and time investments and expose the company to a variety of risks [2]. This may be avoided by using a cloud computing system like Google, which already has experts on staff who can ensure you have highly available, dependable, cost-effective, and secure cloud computing [33] [50] [51] [53].…”

Section: Cloud Computingmentioning

confidence: 99%

“…The most often used IoT network topologies are [12] [27] [34] [37] [50] [53] [57] [58]:  Peer-to-Peer: it only links two devices.…”

Section: Network Topologiesmentioning

confidence: 99%

“…In order to get specific messages to specific Subscribers, MQTT introduced the Topic concept, as well as the MQTT Broker, which is a central point to which all subscribers will be connected. A Subscriber will subscribe to a specific topic then, and the MQTT broker will filter the messages by topic, sending each message to the Subscribers who have subscribed to each Topic [12] [17] [53] [54] [56] [57].…”

Section: Mqttmentioning

confidence: 99%

See 1 more Smart Citation

Internet of Things: Towards a Solid Ecosystem of Interconnected Things

Chakroun¹,

Sayah²,

Kallab³

et al. 2022

AIT

The Internet of Things (IoT) is a technological revolution that has changed everything we do and given us a new perspective on our daily lives, but despite the fact that numerous publications have focused on characterizing the many edges and technologies that make up an IoT system, the IoT ecosystem is still seen as too complex to be recognized as a stand-alone environment due to its significant diversity; hence, the objective of this research is to address such a complex environment in a way that highlights its components and distinguishes them both individually and in relation to their broader context. Therefore, the definition of IoT and its emergence were discussed and organized around the timeline of Internet development phases demonstrating that IoT has been a need that has accompanied the presence of the Internet since its early stages, and then its growth and impact were discussed and highlighted with estimates and numbers. On the technical side, each of the following groups, IoT components, protocols, and architectures, was defined, discussed, and grouped in such a way that their intergroup organization, as well as their placement and contribution to the overall ecosystem, was highlighted. This, in addition to the various examples mentioned throughout the discussion, will provide the reader with a better understanding of the Internet of Things and how deeply it has become entwined in our daily lives and routines as a result of its numerous applications.

“…STM32F767 has three 12-bit ADCs, two digital-toanalog conversions (DAC), one low-power real time clock (RTC), twelve general-purpose 16-bit timers, including two pulse width modulation (PWM) timers for motor control [6], two general-purpose 32-bit timers, and a true random number generator. These resources can help us configure the built-in 12-bit ADC well to meet the vibration signal acquisition accuracy and ensure low cost [7].…”

Section: Stm32 Overall Overviewmentioning

confidence: 99%

Multi-channel Vibration Signal Acquisition System Based on ARM

Li¹,

Du²,

He³

2021

CRPASE

In modern industrial scenes, it is very important to ensure the safe operation of machinery equipment. Therefore, it is necessary to detect the state of the mechanical equipment. There are many kinds of signals for mechanical equipment state detection and fault diagnosis. The most common of signals is mechanical vibration signals. This article uses the STM32F767 and the built-in ADC of the controller to achieve multi-channel acquisition of vibration signals. After experimental test verification, the acquisition accuracy meets the requirements. The peak-to-peak voltage deviation is less than 2%. The synchronization between adjacent channels also meets the requirements, and the acquisition error is less than 1%.