#Magnetoelectric

[materialsscienceandengineering]

Flexible, biodegradable and wireless magnetoelectric paper for simple in situ personalization of bioelectric implants

A research team, jointly led by Professors Jiyun Kim, Chaenyung Cha, and Myoung Hoon Song from the Department of Materials Science and Engineering at UNIST, has unveiled the world's first flexible, biodegradable bioelectronic paper with homogeneously distributed wireless stimulation functionality for simple personalization of bioelectronic implants. These innovative materials are made from nanoscale functional materials, and thus can be further customized using simple methods, such as rolling, cutting, inward folding, and outward folding without losing functionality. The research team expects that these results with unprecedented design flexibility can lay a foundation for the low-cost, simple, and rapid personalization of temporary bioelectronic implants for minimally invasive wireless stimulation therapies.

Read more.

[fieriframes]

[Magnetoelectric.]

[riceli]

Researchers at Rice University have developed a magnetoelectric material that can stimulate neural tissue and allow nerve signals to flow despite severed connections.

This material converts magnetic fields into electric fields, and tests on rats have shown that it can spark neurons to restore a sensory reflex and enable neural signals to flow again.

The material is tiny but sophisticated, made up of lead zirconium titanate and sandwiched between layers of metallic glass alloy.

In the future, this technology could potentially be used to stimulate damaged nerves and restore movement and function.

[jcmarchi]

Tiny magnetic discs offer remote brain stimulation without transgenes

New Post has been published on https://thedigitalinsider.com/tiny-magnetic-discs-offer-remote-brain-stimulation-without-transgenes/

Tiny magnetic discs offer remote brain stimulation without transgenes

Novel magnetic nanodiscs could provide a much less invasive way of stimulating parts of the brain, paving the way for stimulation therapies without implants or genetic modification, MIT researchers report.

The scientists envision that the tiny discs, which are about 250 nanometers across (about 1/500 the width of a human hair), would be injected directly into the desired location in the brain. From there, they could be activated at any time simply by applying a magnetic field outside the body. The new particles could quickly find applications in biomedical research, and eventually, after sufficient testing, might be applied to clinical uses.

The development of these nanoparticles is described in the journal Nature Nanotechnology, in a paper by Polina Anikeeva, a professor in MIT’s departments of Materials Science and Engineering and Brain and Cognitive Sciences, graduate student Ye Ji Kim, and 17 others at MIT and in Germany.

Deep brain stimulation (DBS) is a common clinical procedure that uses electrodes implanted in the target brain regions to treat symptoms of neurological and psychiatric conditions such as Parkinson’s disease and obsessive-compulsive disorder. Despite its efficacy, the surgical difficulty and clinical complications associated with DBS limit the number of cases where such an invasive procedure is warranted. The new nanodiscs could provide a much more benign way of achieving the same results.

Over the past decade other implant-free methods of producing brain stimulation have been developed. However, these approaches were often limited by their spatial resolution or ability to target deep regions. For the past decade, Anikeeva’s Bioelectronics group as well as others in the field used magnetic nanomaterials to transduce remote magnetic signals into brain stimulation. However, these magnetic methods relied on genetic modifications and can’t be used in humans.

Since all nerve cells are sensitive to electrical signals, Kim, a graduate student in Anikeeva’s group, hypothesized that a magnetoelectric nanomaterial that can efficiently convert magnetization into electrical potential could offer a path toward remote magnetic brain stimulation. Creating a nanoscale magnetoelectric material was, however, a formidable challenge.

Kim synthesized novel magnetoelectric nanodiscs and collaborated with Noah Kent, a postdoc in Anikeeva’s lab with a background in physics who is a second author of the study, to understand the properties of these particles.

The structure of the new nanodiscs consists of a two-layer magnetic core and a piezoelectric shell. The magnetic core is magnetostrictive, which means it changes shape when magnetized. This deformation then induces strain in the piezoelectric shell which produces a varying electrical polarization. Through the combination of the two effects, these composite particles can deliver electrical pulses to neurons when exposed to magnetic fields.

One key to the discs’ effectiveness is their disc shape. Previous attempts to use magnetic nanoparticles had used spherical particles, but the magnetoelectric effect was very weak, says Kim. This anisotropy enhances magnetostriction by over a 1000-fold, adds Kent.

The team first added their nanodiscs to cultured neurons, which allowed then to activate these cells on demand with short pulses of magnetic field. This stimulation did not require any genetic modification.

They then injected small droplets of magnetoelectric nanodiscs solution into specific regions of the brains of mice. Then, simply turning on a relatively weak electromagnet nearby triggered the particles to release a tiny jolt of electricity in that brain region. The stimulation could be switched on and off remotely by the switching of the electromagnet. That electrical stimulation “had an impact on neuron activity and on behavior,” Kim says.

The team found that the magnetoelectric nanodiscs could stimulate a deep brain region, the ventral tegmental area, that is associated with feelings of reward.

The team also stimulated another brain area, the subthalamic nucleus, associated with motor control. “This is the region where electrodes typically get implanted to manage Parkinson’s disease,” Kim explains. The researchers were able to successfully demonstrate the modulation of motor control through the particles. Specifically, by injecting nanodiscs only in one hemisphere, the researchers could induce rotations in healthy mice by applying magnetic field.

The nanodiscs could trigger the neuronal activity comparable with conventional implanted electrodes delivering mild electrical stimulation. The authors achieved subsecond temporal precision for neural stimulation with their method yet observed significantly reduced foreign body responses as compared to the electrodes, potentially allowing for even safer deep brain stimulation.

The multilayered chemical composition and physical shape and size of the new multilayered nanodiscs is what made precise stimulation possible.

While the researchers successfully increased the magnetostrictive effect, the second part of the process, converting the magnetic effect into an electrical output, still needs more work, Anikeeva says. While the magnetic response was a thousand times greater, the conversion to an electric impulse was only four times greater than with conventional spherical particles.

“This massive enhancement of a thousand times didn’t completely translate into the magnetoelectric enhancement,” says Kim. “That’s where a lot of the future work will be focused, on making sure that the thousand times amplification in magnetostriction can be converted into a thousand times amplification in the magnetoelectric coupling.”

What the team found, in terms of the way the particles’ shapes affects their magnetostriction, was quite unexpected. “It’s kind of a new thing that just appeared when we tried to figure out why these particles worked so well,” says Kent.

Anikeeva adds: “Yes, it’s a record-breaking particle, but it’s not as record-breaking as it could be.” That remains a topic for further work, but the team has ideas about how to make further progress.

While these nanodiscs could in principle already be applied to basic research using animal models, to translate them to clinical use in humans would require several more steps, including large-scale safety studies, “which is something academic researchers are not necessarily most well-positioned to do,” Anikeeva says. “When we find that these particles are really useful in a particular clinical context, then we imagine that there will be a pathway for them to undergo more rigorous large animal safety studies.”

The team included researchers affiliated with MIT’s departments of Materials Science and Engineering, Electrical Engineering and Computer Science, Chemistry, and Brain and Cognitive Sciences; the Research Laboratory of Electronics; the McGovern Institute for Brain Research; and the Koch Institute for Integrative Cancer Research; and from the Friedrich-Alexander University of Erlangen, Germany. The work was supported, in part, by the National Institutes of Health, the National Center for Complementary and Integrative Health, the National Institute for Neurological Disorders and Stroke, the McGovern Institute for Brain Research, and the K. Lisa Yang and Hock E. Tan Center for Molecular Therapeutics in Neuroscience.

[molsons112000]

So with dental implants that insert needs to connect to the nerve that is within the gum line of the mouth. This way, the implant can provide feedback through a pressure sensor built within the artificial tooth. And it will send this impulse into the nervous system through this material that is designed to interface with the nervous system of the body.....

"Rice University neuroengineer Jacob Robinson and his team designed the first magnetoelectric material that not only solves this issue but performs the magnetic-to-electric conversion 120 times faster than similar materials. According to a study published in Nature Materials, the researchers showed the material can be used to precisely stimulate neurons remotely and to bridge the gap in a broken sciatic nerve in a rat model."

https://news.rice.edu/news/2023/rice-engineered-material-can-reconnect-severed-nerves

See, they built in to the dental implant, a temperature sensor but they need to put in a pressure sensor so we can give this information to the human nervous system. Allowing the feedback loop to continue between the live nerves and the dental implant... This allows the cells that they're around the nervous system to react correctly, to different situations related to the mouth. It also helps the gums and other cells properly form and divide... So this is just part of the solution they need the implant a pressure sensor in it and connected to the nervous system... So working with these individuals, together as a joint group, they can improve dental implants....

What are the sensors in dental implants?

A dental implantable temperature sensor is used to monitor real-time diagnosis of infectious disease post-implantation. A built-in biosensor allowing for continuous blood analysis and management through maxillary bone marrow, specifically of value to diabetic patients.Oct 30, 2020

https://www.himed.com

New Sensor Integrated Within Dental Implants Monitors Bone Health

If they get this right, then they can do shoulder and knee implants and get them right with pressure and temperature sensors and them to the neural feedback loop.... So, the other aspects of tendons and ligaments and other aspects that surround these implants can react properly... 🤔 Now watching blood flow as well. Do you want to make sure the circulatory and lymphatic systems are acting correctly as well....

But take a look at the images and other information below....

Tekscan

https://www.tekscan.com

Tooth Implants

Pressure Mapping, Force Measurement & Tactile Sensors. Buy ... Embedded Sensing · Medical · Dental · Products & Solutions · Applications 

National Institutes of Health (NIH) (.gov)

https://www.ncbi.nlm.nih.gov › pmc

Biomaterials for the central nervous system - PMC

by Y Zhong · 2008 · Cited by 331 — Biomaterials are widely used to help treat neurological disorders and/or improve functional recovery in

ScienceDirect.com

So we can bring implants to a whole new level, making them a part of the human body interfacing with and allowing the human body to operate normally...

https://www.sciencedirect.com › pii

Adhesive and self-healing materials for central nervous ...

by C Correia · 2023 · Cited by 5 — Central nervous system (CNS) has a limited self-regeneration ability. •. Bioadhesives and self-healing materials are promising alternatives to the current ...

National Institutes of Health (NIH) (.gov)

https://www.ncbi.nlm.nih.gov › pmc

Hyaluronic Acid Biomaterials for Central Nervous System ...

by G Jensen · 2020 · Cited by 79 — (A) Hydrogels are the most common HA-based material employed in CNS applications and are beneficial due to their ease of formation. (B) Granular ...

Rice News

https://news.rice.edu › news › rice-...

Rice-engineered material can reconnect severed nerves

Oct 10, 2023 — According to a study published in Nature Materials, the researchers showed the material can be used to precisely stimulate neurons remotely and ...

Frontiers

https://www.frontiersin.org › full

Biomaterials for Neural Tissue Engineering

by LR Doblado · 2021 · Cited by 88 — Biomaterials, both natural and synthetic, have shown consistently positive neural tissue engineering results, including neurite outgrowth, differentiation of ...

Mayo Clinic

https://www.mayoclinic.org › img-...

Nerve cell (neuron)

The myelin sheath is fatty material that covers, insulates and protects nerves of the brain and spinal cord. There is a problem with information

[evolv28]

Do Wearable Stress Relief Devices Work? Let’s Find Out

Wearable stress-relief gadgets have become increasingly popular as people seek convenient ways to manage stress daily. Devices like Evolv28 are at the forefront of this trend, promising to alleviate stress and improve mental well-being through innovative technology.

This article explores the efficacy of these stress relief devices, mainly Evolv28, focusing on how they work, their impact on the nervous system, and their pros and cons.

What Are Stress Relief Devices?

Stress relief devices are wearable gadgets designed to reduce stress through various mechanisms such as biofeedback, neurostimulation, and magnetic therapy. These devices often claim to help with anxiety, improve sleep, and enhance overall mental clarity and focus. They come in various forms, including headbands, wristbands, and necklaces, each utilising different technologies to achieve their goals.

Evolv28: A Reliable Stress Relief Device

Evolv28 is a state-of-the-art wearable device that uses Variable Complex Weak Magnetic Fields (VCMF) to promote mental well-being. It aims to harmonise brainwaves through magnetoelectric fields, helping users relax, improve focus, energise, and meditate better.

The device is sleek and user-friendly, integrating seamlessly into daily routines. Its innovative approach makes it one of the leading options in the market for those seeking non-invasive stress relief solutions.

Evolv28: How Do Wearables Relieve Stress?

Wearable stress relief devices have gained popularity for their innovative approaches to managing stress and promoting mental well-being. Evolv28, a stress relief device stands out due to its advanced technology and user-friendly design. Its effectiveness in relieving stress is primarily due to its ability to influence brain activity through controlled magnetic stimulation.

Here’s how the mechanism works:

Variable Complex Weak Magnetic Fields (VCMF): Evolv28 generates weak magnetic fields that are carefully controlled and varied in complexity. These fields are designed to interact with the brain’s natural electromagnetic environment, promoting a harmonious state that reduces stress and ease anxiety.

Digital Algorithm: The device uses a unique digital algorithm to create long, variable frequencies. These frequencies are channelled through a custom chipset onto specific inductors containing ferromagnetic materials like magnesium and zinc. This process ensures that the magnetic fields generated are both precise and effective.

Magnetoelectric Fields: These fields are produced through specially designed coils within the device. The coils generate magnetoelectric fields that align with brainwaves, promoting relaxation and mental clarity. This alignment helps reduce brain hyperactivity and fosters a state of calmness.

Brainwave Harmonisation: Evolv28 emits magnetoelectric fields that align with the brain’s natural rhythms, a process known as brainwave entrainment. By synchronising brainwaves with these fields, the device helps the user relax, reducing stress and anxiety. This harmonisation can also enhance focus better and cognitive function.

Neurostimulation: The device uses mild electrical impulses that mimic the brain’s natural signals. These impulses stimulate specific brain areas, promoting relaxation and improving sleep quality. Neurostimulation can help modulate the nervous system’s response to stress, making it an effective tool for managing anxiety.

Scientifically Backed: Evolv28’s technology is supported by clinical research, demonstrating its effectiveness in improving mental well-being. Studies have shown significant reductions in user stress and anxiety levels, confirming the device’s efficacy.

Continue reading here: Wearable Stress Relief Devices Work

Stay Connected for Feel-Good Updates and Order Now

Are you excited to experience the transformative power of Evolv28? Order now and be among the first to embark on this mindfulness journey. Stay connected through the website, where you can subscribe for feel-good updates, gaining access to valuable information, tips, and exclusive content enriching your understanding of mindfulness and mental wellness.

[y2fear]

Building block for magnetoelectric spin-orbit logic opens new avenue for low-power beyond-CMOS technologies

[shalu34]

Global Magnetic Powder Cores Market, Market Outlooks 2023: Industry Analysis, Top Companies, Market Demand, Price and Forecast to 2030.

The GLOBAL MAGNETIC POWDER CORES MARKET is likely to exhibit steady growth over the forecast period, according to the latest report on Qualiket Research. The market’s major drivers and restraints are analyzed in the report, which provides readers with a clear picture of what’s driving and what’s holding back the Magnetic Powder Cores market. The historical trajectory is examined in the report in order to provide a basis for predictions associated with the MAGNETIC POWDER CORES market’s growth rate over the analysis period. Happenings in the forecast period are examined carefully to explain their connection with the market’s present state and in future growth prospects.

The leading players operating in the Magnetic Powder Cores market are also studied in the report to provide readers with a comprehensive overview of the competitive landscape in the market. The major strategies used by leading players are studied in the report to provide readers with an idea of what works and what doesn’t, in the Magnetic Powder Cores market. Individual key players are analyzed in detail in the report in order to elaborate on their regional analysis and product catalog, providing a clear overview of each major player operating in the Magnetic Powder Cores market.

Solid industry-standard analysis tools such as SWOT analysis and Porter’s Five Forces analysis are used the gauge the present condition in the Magnetic Powder Cores market. A detailed analysis of the market’s likely growth trajectory and development over the forecast period is presented on the basis of this analysis, which includes historical information. A complete picture of the Magnetic Powder Cores market’s movement through the recent past and likely movement in the coming years is provided in the report.

The regional segmentation and detailed regional analysis is also discussed in the report, for the market’s segment in each major region. The key regional markets are profiled to give key players an idea of where each region is soaring and what needs attention in specific markets. Region-specific product formulations and strategies can be based on this detailed analysis, as the factors making the market tick in specific regions are analyzed in the report, leading to a comprehensive understanding of the MAGNETIC POWDER CORES market.

Request A Free Sample: https://qualiketresearch.com/reports-details/Magnetic-Powder-Cores-Market

Market Segmentation

The Global Magnetic Powder Cores Market is segmented into type such as MPP, Sendust, High Flux, Fe-Si, and Others. Further, market is segmented into application such as Solar Power, Automotive, Household Appliances, UPS, Wind Power, and Others.

Also, the Global Magnetic Powder Cores Market is segmented into five regions such as North America, Latin America, Europe, Asia Pacific, and Middle East & Africa.

Market Key Players

Various key players are discussed in this report such as Hitachi, MAGNETICS, Changsung Corp, POCO Magnetic, Micrometals, TDG, Dongbu Electronic Materials, Zhejiang KEDA Magnetoelectricity, Samwha Electronics, DMEGC, Huzhou Careful Magnetism, etc.

About Us:

QualiKet Research is a leading Market Research and Competitive Intelligence partner helping leaders across the world to develop robust strategy and stay ahead for evolution by providing actionable insights about ever changing market scenario, competition and customers.

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[sisiad]

Electric field tuning of a nickel zinc ferrite resonator by non-linear magnetoelectric effects

http://dlvr.it/Sy0nDX

[jhavelikes]

Magnetoelectric materials convert magnetic fields into electric fields. These materials are often used in wireless electronic and biomedical applications. For example, magnetoelectrics could enable the remote stimulation of neural tissue, but the optimal resonance frequencies are typically too high to stimulate neural activity. Here we describe a self-rectifying magnetoelectric metamaterial for a precisely timed neural stimulation. This metamaterial relies on nonlinear charge transport across semiconductor layers that allow the material to generate a steady bias voltage in the presence of an alternating magnetic field. We generate arbitrary pulse sequences with time-averaged voltage biases in excess of 2 V. As a result, we can use magnetoelectric nonlinear metamaterials to wirelessly stimulate peripheral nerves to restore a sensory reflex in an anaesthetized rat model and restore signal propagation in a severed nerve with latencies of less than 5 ms. Overall, these results showing the rational design of magnetoelectric metamaterials support applications in advanced biotechnology and electronics.

Self-rectifying magnetoelectric metamaterials for remote neural stimulation and motor function restoration | Nature Materials

[materialsscienceandengineering]

A research team from the University of St Andrews and the University of Cologne has developed a new wireless light source that might one day make it possible to 'illuminate' the human body from the inside. Such light sources could enable novel, minimally invasive means to treat and better understand diseases that today require the implantation of bulky devices. The study was published under the title 'Wireless Magnetoelectrically Powered Organic Light-Emitting Diodes' in Science Advances.

Read more.

[blackholerobots]

Rice-engineered material can reconnect severed nerves | Rice News | News and Media Relations | Rice University

[chriswu08]

BLIIoT Ethernet Distributed Edge I/O System applied to Smart Parking Lot

With the continuous acceleration of the urbanization process, parking difficulties have become a problem faced by many cities. With the vigorous development of the national and local governments in recent years, it is expected that there will be more and more overall smart parking projects in the future, and the industrial scale is expected to reach hundreds of billions or even trillions. This article will introduce the application case of BLIIoT Ethernet Distributed Edge I/O System applied to Smart Parking Lot.

1. Case Background

At present, the parking space detection technology includes magnetoelectric technology, ultrasonic technology, infrared technology, and image recognition parking space technology. Considering the influence of environmental factors such as electromagnetic interference and signal interference, it is usually carried out in combination, such as using different sensors and applying different protocols, in order to improve the accuracy and real-time performance of parking space detection.

For the data collected by these sensors, data analysis and uploading are required. Usually, the parking lot needs a transmission distance of more than 100 meters, so the traditional wired transmission will face the challenge of transmission distance and the cost of ground installation, which may lead to difficulties in maintenance of communication interruption or failure. Major smart parking integration solution providers are urgently paying attention to the development of the industry!

2. What is BLIIoT Ethernet Distributed Edge I/O System?

The BLIIoT Ethernet Distributed Edge I/O System consists of couplers and I/O modules. It is responsible for collecting and transmitting various signal data. It supports up to 32 I/O modules and 512 signal collections. It is an I/O controller with edge computing for collection control. Compared with the traditional wired transmission method, the distributed I/O system reduces the data transmission time between devices and improves the efficiency of data collection. It has the characteristics of strong scalability, good flexibility, high reliability and easy management.

3. BLIIoT Ethernet Distributed Edge I/O System Solution

Selection of hardware equipment

In order to ensure the accuracy and real-time performance of data collection, high-quality IO modules need to be selected. After comparison, the customer chose the I/O module developed by barium-rhenium technology.

Data collection and processing

The I/O board supports various types of input/output signal acquisition, such as digital input, digital output, analog input, analog output, PT100, PT1000, thermocouple, pulse input, pulse output, RS485 and other I/O signals. Users can configure each interface of the node according to their needs.

In terms of data processing, among the collected signals, the distributed I/O controller has built-in edge computing functions, which can realize data processing and logic linkage without relying on the cloud and the host computer, and realize cloud-side collaboration.

In terms of data aggregation, the distributed I/O module can seamlessly integrate information from multiple data collection points, aggregate and transmit the information to the coupler for further analysis and processing.

Immediate response: Distributed I/O modules can quickly collect and process data, and there is a very short delay time from signal input to output, making on-site operation and maintenance and system real-time control more convenient.

Remote monitoring: Remote real-time monitoring and control of signal acquisition and data processing functions of distributed I/O modules. Through the Internet of Things platform or internal system platform, administrators can keep abreast of the data status of each node, equipment failure alarms, and avoid danger or damage.

Storage and transmission

After the data is collected and transmitted, it needs to be stored and analyzed. For data storage in smart parking lots, the following factors need to be considered: reliability, storage and processing speed, confidentiality and privacy, and cost. Considering the above factors, you can choose some well-known cloud platforms, such as Alibaba Cloud, Huawei Cloud, AWS Cloud, and ThingsBoard.

4. Application Topology Diagram of Distributed I/O System

Distributed I/O module is a hardware device for decentralized and distributed data acquisition and control, with the following features:

Support large-scale expansion: Distributed I/O modules can support massive input/output, and both digital and analog signals can be adapted, which makes it more flexible when expanding nodes.

Network communication interface: connect to the remote master device or sensing node through different network communication interfaces, and support two-way transmission of signals, so as to realize open interconnection and intercommunication.

Technical standardization: Distributed I/O modules often adopt standardized technical solutions, such as industrial network protocols such as Modbus TCP/MQTT/OPC UA/Modbus TCP/ProfiNet/EtherCAT/EtherNet/IP, etc., making the interconnection with other industrial automation equipment easier.

Unified management: The acquisition and control system based on I/O modules can also be managed in a unified manner, and the supervision and configuration of each node device can be realized on the cloud management platform.

Data processing capability: Compared with other smart devices, the distributed I/O module has more advantages in data processing, because it has built-in edge functions, and can realize the linkage control of local I/O signals without the need for the upper computer and cloud platform or PLC, which greatly improves the response speed of the site and relieves the pressure of data processing on the cloud upper computer.

More information about BLIIoT Ethernet Distributed Edge I/O System: https://www.bliiot.com/edgeio-io-controllers-p00334p1.html

[bliiot-jerry]

BLIIoT Ethernet Distributed Edge I/O System applied to Smart Parking Lot

With the continuous acceleration of the urbanization process, parking difficulties have become a problem faced by many cities. With the vigorous development of the national and local governments in recent years, it is expected that there will be more and more overall smart parking projects in the future, and the industrial scale is expected to reach hundreds of billions or even trillions. This article will introduce the application case of BLIIoT Ethernet Distributed Edge I/O System applied to Smart Parking Lot.

1. Case Background

At present, the parking space detection technology includes magnetoelectric technology, ultrasonic technology, infrared technology, and image recognition parking space technology. Considering the influence of environmental factors such as electromagnetic interference and signal interference, it is usually carried out in combination, such as using different sensors and applying different protocols, in order to improve the accuracy and real-time performance of parking space detection.

For the data collected by these sensors, data analysis and uploading are required. Usually, the parking lot needs a transmission distance of more than 100 meters, so the traditional wired transmission will face the challenge of transmission distance and the cost of ground installation, which may lead to difficulties in maintenance of communication interruption or failure. Major smart parking integration solution providers are urgently paying attention to the development of the industry!

2. What is BLIIoT Ethernet Distributed Edge I/O System?

The BLIIoT Ethernet Distributed Edge I/O System consists of couplers and I/O modules. It is responsible for collecting and transmitting various signal data. It supports up to 32 I/O modules and 512 signal collections. It is an I/O controller with edge computing for collection control. Compared with the traditional wired transmission method, the distributed I/O system reduces the data transmission time between devices and improves the efficiency of data collection. It has the characteristics of strong scalability, good flexibility, high reliability and easy management.

3. BLIIoT Ethernet Distributed Edge I/O System Solution

Selection of hardware equipment

In order to ensure the accuracy and real-time performance of data collection, high-quality IO modules need to be selected. After comparison, the customer chose the I/O module developed by barium-rhenium technology.

Data collection and processing

The I/O board supports various types of input/output signal acquisition, such as digital input, digital output, analog input, analog output, PT100, PT1000, thermocouple, pulse input, pulse output, RS485 and other I/O signals. Users can configure each interface of the node according to their needs.

In terms of data processing, among the collected signals, the distributed I/O controller has built-in edge computing functions, which can realize data processing and logic linkage without relying on the cloud and the host computer, and realize cloud-side collaboration.

In terms of data aggregation, the distributed I/O module can seamlessly integrate information from multiple data collection points, aggregate and transmit the information to the coupler for further analysis and processing.

Immediate response: Distributed I/O modules can quickly collect and process data, and there is a very short delay time from signal input to output, making on-site operation and maintenance and system real-time control more convenient.

Remote monitoring: Remote real-time monitoring and control of signal acquisition and data processing functions of distributed I/O modules. Through the Internet of Things platform or internal system platform, administrators can keep abreast of the data status of each node, equipment failure alarms, and avoid danger or damage.

Storage and transmission

After the data is collected and transmitted, it needs to be stored and analyzed. For data storage in smart parking lots, the following factors need to be considered: reliability, storage and processing speed, confidentiality and privacy, and cost. Considering the above factors, you can choose some well-known cloud platforms, such as Alibaba Cloud, Huawei Cloud, AWS Cloud, and ThingsBoard.

4. Application Topology Diagram of Distributed I/O System

Distributed I/O module is a hardware device for decentralized and distributed data acquisition and control, with the following features:

Support large-scale expansion: Distributed I/O modules can support massive input/output, and both digital and analog signals can be adapted, which makes it more flexible when expanding nodes.

Network communication interface: connect to the remote master device or sensing node through different network communication interfaces, and support two-way transmission of signals, so as to realize open interconnection and intercommunication.

Technical standardization: Distributed I/O modules often adopt standardized technical solutions, such as industrial network protocols such as Modbus TCP/MQTT/OPC UA/Modbus TCP/ProfiNet/EtherCAT/EtherNet/IP, etc., making the interconnection with other industrial automation equipment easier.

Unified management: The acquisition and control system based on I/O modules can also be managed in a unified manner, and the supervision and configuration of each node device can be realized on the cloud management platform.

Data processing capability: Compared with other smart devices, the distributed I/O module has more advantages in data processing, because it has built-in edge functions, and can realize the linkage control of local I/O signals without the need for the upper computer and cloud platform or PLC, which greatly improves the response speed of the site and relieves the pressure of data processing on the cloud upper computer.

More information about BLIIoT Ethernet Distributed Edge I/O System:

https://www.bliiot.com/edgeio-io-controllers-p00334p1.html

[thatshuffle]

A research team led by associate Prof. Yin Lihua from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has demonstrated a clear control of magnetism at low electric fields (E) at room temperature. The E-induced phase transformation and lattice distortion were found to lead to the E control of magnetism in multiferroic BiFeO3-based solid solutions near the morphotropic phase boundary (MPB). The study was published in Acta Materialia.

Multiferroic materials, with magnetic and ferroelectric properties, are promising for multifunctional memory devices. Magnetoelectric-based control methods in insulating multiferroic materials require less energy and have potential for high-speed, low-power information storage applications. BiFeO3 is a room-temperature multiferroic material with potential for use in spintronics devices, but its weak ferromagnetic and magnetoelectric effects and high voltage required for manipulation are weaknesses.

In this study, the researchers grew single crystals of the multiferroic 0.58BiFeO3-0.42Bi0.5K0.5TiO3 (BF-BKT), which lies in the tetragonal region adjacent to the MPB.

"Below the Néel temperature, TN~257.5 K, the BF-BKT crystals showed antiferromagnetic behavior," said Yin, "and at room temperature, we found that the BF-BKT crystals exhibited both short-range magnetic order and long-range ferroelectric order."

At room temperature, the multiferroic BF-BKT single crystals exhibited substantial and consistent control of magnetism with E, where the magnitude of E was significantly smaller than the ferroelectric coercive field.

In addition, high magnetic fields (H) could significantly reduce the degree of E control over magnetism.

It was found that the coupling between magnetism and ferroelectricity in the BF-BKT material can be attributed to both lattice distortion and phase transformation induced by an external E, rather than just ferroelectric domain switching. At high values of H, the converse magnetoelectric effect is weakened due to the suppression of phase transformation caused by the magnetic field.

These results suggest that designing devices based on multiferroics near the MPB could be an effective way to achieve E control of magnetism and even possible low-E switching of magnetism for low-power spintronic applications.

[nano2macro]

Controlling magnetism with voltage has been a long quest for materials’ scientists for many years. This can be done in many ways, but the most effective is by combining materials that deform upon voltage application (piezoelectrics) and materials that modulate their magnetism in response to a deformation (magnetostrictive). However the large structural differences and processing incompatibilities for these materials yields devices with deficient properties. Now, researchers have found a way to overcome these limitations by synthesizing thin membranes of a magnetostrictive perovskite oxide material and coupling it with a piezoelectric substrate. Surprisingly, even though the intermolecular forces keeping them together is weak (compared to typical ionic and covalent bondings in solids), the electrically-induced deformation from the substrate can efficiently control the magnetic response of the membrane.

This study could pave the way for new magnetoelectric memories combining a wide diversity of materials