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The common wired and wireless communication technologies in IoT include RS-232, RS-485, USB, Z-Wave, IPv6, Wi-Fi, Bluetooth, Lora, NB-IoT, NFC, RF, GSM, 3G 4G, etc.

With the progress and development of the times, society gradually enters the Internet +, various sensors collect data more and more abundantly, big data applications follow, and people consider incorporating various devices directly into the Internet to facilitate data collection, management as well as analysis and calculation.

IoT intelligence is no longer limited to small devices and small network stages but has entered the complete field of intelligent industrialization. Intelligent IoTisation steps into maturity on big data, cloud computing, and virtual reality, and is incorporated into the whole big ecological environment of the Internet+.

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The new 5G and massive MIMO are everywhere. What can the 5G massive MIMO bring to our life?

With the continuous progress of information technology, digitalization, and big data, the development of antenna technology also has higher requirements, and the communication system keeps developing to the higher frequency band and larger bandwidth.

Looking back to the radio communication technology, from the 1895 Italian scientist Marconi, the first wireless telegram is filled with the other side of the ocean. It has already passed more than 120 years in social life, aerospace, military, etc. Radio communications technology has played an irreplaceable role.

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What is the ISM band and what are the main frequencies in the ISM band? After the read, you will get the answer.

This frequency range for 430.050 ~ 434.790MHz, in the world range.

This frequency range is from 868 to 870 MHz, in the UHF band. 

ISM Band Frequency 915 MHz

In the United States and Australia, the frequency range 888 to 889 MHz and 902 to 928 MHz has been available and used by the backscatter RFID system.

ISM Band Frequency 2.4 GHz

This ISM band frequency range is 2.400 ~ 2.483GHz, belongs to the microwave band.

ISM applications in this band include Bluetooth and 802.11 protocol wireless networks.

Microwave / Bluetooth / WIFI, etc. are used in this frequency, in addition to domestic RFID also uses this frequency.

ISM Band Frequency 5.8GHz

This ISM frequency range is 5.725 ~ 5.875GHz.

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The cellular IoT is a method of connecting physical devices (sensors, etc.) to the Internet, and transmits physical devices (sensors, etc.) on the same mobile network as smartphones.

The cellular network connects IoT devices will exceed 20 billion in 2023. Specifically, the number of IoT devices connected via LTE and 5G exceeds 3.5 billion, mainly in China and Northeast Asia.

Two major forms of cellular Internet of Things: LTE-M and NB-IoT

In fact, all current cellular IoT applications use either LTE-M or NB-IoT or GSM cellular infrastructure.

While only the United States, the Netherlands, Ireland, and Australia cover national LTE, GSM has become the norm in many non-Western regions such as Eastern Europe and Africa.

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What is narrowband internet of things technology? Why is the narrowband internet of things technology emerging?

What is narrowband internet of things technology?

NB-IoT refers to NarrowBand Internet of Things (Narrowband-IoT) technology. Different IoT services have different requirements for data transmission capability and real-time performance.

Depending on the transmission rate, IoT services can be differentiated into high, medium, and low speed:

High-speed IoT services:

Mainly using 3G and 4G technologies, such as in-vehicle IoT devices and surveillance cameras, the corresponding business features require real-time data transmission;

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After reading, you will learn what is an IoT antenna, what are the IoT antenna types.

Internet of Things (IoT) devices need to have an antenna. The smaller the IoT device space, the more the frequency band and the more complex IoT antenna design. Internet of Things/IoT antenna includes NB-IoT antenna, 4G antenna, 5G antenna, GSM antenna, Lora antenna, GPRS antenna, UMTS antenna, Lora antenna, ISM antenna, GNSS antenna, WiFi antenna, GPS antenna, etc.

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After the read, you will learn about what is NB-IoT, What are the features of NarrowBand-IoT, what are the NB-IoT applications.

NB-IoT (NarrowBand Internet of Things) is an emerging technology IoT based on the narrowband cellular things, support low-power device is connected to the cellular WAN data, is also known as a low-power wide-area network ( LPWA).

The GSM network, UMTS network, or an LTE network supporting short standby time, the network connection device requires a high connection efficiency.

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the 7 newest UWB industry trends to reveal how UWB technology future gFrom oes.

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What is integrated positioning technology?

The integrated positioning technology integrates all positioning methods on the market, including GPS, base station positioning, Wi-Fi positioning, Bluetooth positioning, and sensor positioning, which can be described as integrated positioning technology sets.

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There are many types of wireless communication technologies in the IoT, such as Wifi, Lora, NB-IoT, Bluetooth, ZigBee, Sigfox, etc.

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Regarding the performance of active vs passive GPS antenna, both GPS passive antennas and active GPS antennas can receive GPS signals and achieve the satellite positioning function. But usually, the GPS active antenna is better than the passive GPS antenna, and the positioning speed active vs passive GPS antenna is faster.

From the antenna placement, GPS antenna can be divided into built-in antenna and external antenna; and GPS built-in antenna can be divided into the active and passive antenna.

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As intelligent transport systems for smart cities begin to evolve, people can take advantages of intelligent transport systems for the many safety, efficiency, and cost benefits.

These new prospects are largely due to the expansion of IoT devices and 5G connectivity technologies.

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The injection mold acceptance standard is recognized from the product quality, mold structure, injection molding process requirements, etc., accordingly, the injection mold quality is evaluated.

The cooling water juice should be used in the plastic block insertion mouth, and the customer needs to request.

The hardness of the mold components should not be less than 50 HRC, or the surface hardening treatment hardness should be higher than 600 hV.

The reset spring should be used as a standard piece, and the spring should not be ground and cut.

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Below are the 18 basic injection molding technologies that injection molding technicians must know.

The melt usually flows from the nozzle into the nozzle, but in some injection molds, the nozzle is part of the mold because it extends to the bottom of the mold. There are also two main types of nozzles: open nozzles and closed nozzles. In injection molding, open nozzles should be used more because they are cheaper and less likely to stay.

Make sure that the nozzle is correctly connected to the nozzle bushing, and the top hole is slightly smaller than the nozzle sprue bushing.

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When it comes to molding defects, burn marks in injection molding are some of the most common. Why have burn marks in injection molding?

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After the read, you can get the latest 5G/NB-IoT/LTE-Cat1/LoRa/Bluetooth/WiFi and other IoT wireless technology trends.

Over this period, the new 5G will contribute US$2.1 trillion in annual net GDP. This forecast is dependent on the actual commercialization of 5G new radio, which is the most noteworthy aspect of 5G.

The future of live streaming applications will be more rapid with the support of 5GNR.

Some data indicates that in cellular IoT connections, 60% of IoT connections require the narrowband network to provide services, about 10% of high-speed services require 4G Cat 4 or above or 5G eMBB to provide services, while the remaining 30% of low and medium rate IoT requires LTE Cat 1 or eMTC network to provide services

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The 5G core network (5GC) is the brain of the 5G mobile communication network, which is responsible for managing and controlling the entire network.

The 5G core network is a collective name of many 5G NE equipment and is not specifically referred to as a network element device.

AMF (Access and Mobility Management Function Access and Mobility Management) supports a UE with different mobility management requirements. AMF can be classified as 4G MME.

Store and manage the permanent user ID (SUPI) of the 5G system;

AN (Access Network) is the access network, which can be a 3GPP access network (such as LTE, 5G-NR), or a Non-3GPP access network (such as common WiFi access).

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Today, we talk about the 5G NR MIMO Transmission ways. What are the required transmission schemes for NR MIMO?

There are three implementation options for the 5G NR beam assignment, which are analog, digital, and hybrid beam assignment. For these implementations, both multibeam-based and single-beam-based approaches should be considered. But what are the required transmission schemes for the 5G NR MIMO?

In LTE, single layer/multi-layer/TP/UE transmissions use a unified framework. Due to the flexibility of DMRS, these transmissions have good transparency. In 5G NR, multi-beam transmissions can also be seen as cooperative transmissions between multiple virtual TPs.

Considering the cost and complexity, when there are more antenna units and the number of RXUs is usually smaller than the number of originals.

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While 5G has been a hot topic for years, there is still a great deal of work to be done behind the scenes in refining and effectively iterating on 5G standards.

5G NR (New Radio) Release 16 brings critical reliability and latency improvement technologies in several key areas, most notably an enhanced 5G URLLC base to deliver better link reliability (up to 99.9999%).

These networks have gained significant traction in industrial IoT use cases, enabling enterprises to deploy 5G industrial IoT networks with dedicated resources immediately, rather than waiting for broader 5G network deployments. Other benefits include specific optimizations for local applications and customized security and privacy settings when needed.

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