Analysis of cloud Internet of things platform

Cloud platform, also known as cloud computing platform, refers to services based on hardware resources and software resources to provide computing, network and storage capabilities.

 

The beacon of cloud platform has become more and more fierce. Since Amazon and Google gradually compete around the world, the domestic cloud computing market is also highly competitive. Several major domestic manufacturers are ranked according to the number of users: Alibaba cloud, Tencent cloud, Xinrui cloud, Huawei cloud, baidu cloud

Alibaba cloud

 

Founded in 2009, Alibaba cloud is the world's leading cloud computing and artificial intelligence technology company. It is committed to providing safe and reliable computing and data processing capabilities in the form of online public services, making computing and artificial intelligence Pratt Whitney technology. Alibaba cloud serves leading enterprises in many fields such as manufacturing, finance, government affairs, transportation, medical treatment, telecommunications and energy, including large enterprise customers such as China Unicom, 12306, Sinopec, PetroChina, Philips and BGI, as well as Mingxing Internet companies such as microblog, Zhihu and hammer technology. Alibaba cloud has maintained a good operating record in challenging application scenarios such as tmall's double 11 global Carnival and 12306 spring festival ticket purchase.

Alibaba cloud deploys energy-efficient green data centers around the world to provide a steady stream of energy power for the interconnected new world by using clean computing. At present, the service areas include China (North China, East China, South China and Hong Kong), Singapore, the United States (East and West America), Europe, the Middle East, Australia and Japan.

In 2014, Alibaba cloud helped users resist the largest DDoS attack in the history of the global Internet, with peak traffic reaching 453.8gb per second. In the cloudsort project of sort benchmark 2016 sorting competition, Alibaba cloud broke the AWS record of 4.51 $/ TB with a sorting cost of 1.44 $/ TB. In sort benchmark 2015, Alibaba cloud used its self-developed distributed computing platform ODPs to sort 100TB data in 377 seconds, setting a new world record of 1406 seconds for Apache spark.

Tencent cloud

 

Tencent cloud also has a large-scale layout in terms of social networking and games, so Tencent virtual machine can also rank among the top on the basis of relying on its own Tianliang users.

The advantage of Tencent virtual machine lies in the green check authentication of QQ chat window and the experience and professionalism of Tencent cloud in the field of entertainment games, and it can have better compatibility in social applets such as QQ / wechat.

Specifically, it includes basic cloud services such as cloud server, cloud storage, cloud database and elastic web engine; Tencent's overall big data capabilities such as Tencent cloud analysis (MTA) and Tencent cloud push (carrier pigeon); And cloud linked social systems such as QQ Internet, QQ space, micro cloud and micro community. These are the differentiation advantages that Tencent cloud can provide to this industry, creating a high-quality Tencent cloud technology platform that can support various Internet use scenarios.

Xinruiyun

Xinruiyun is the leader among the rising stars. The impression of focusing on domestic products makes xinruiyun's active IP growth rate reach 219% in 2019, reflecting its strong strength in the enterprise market and xinruiyun's commitment to the cloud market.

Xinruiyun mainly deals with large enterprises (such as state-owned enterprises and public institutions). It is an exclusive user group of domestic forces (but its personal business is also very excellent). Xinruiyun's own technology is another existence that is difficult to shake its position in addition to bat.

Huaweicloud

 

Since March 2017, Huawei has specially established cloud Bu to build and provide a trusted, open and global public cloud with online and offline service capabilities. As of September 2017, Huawei has released a total of 85 cloud services in 13 categories, serving not only domestic enterprises, but also many enterprises in Europe, America and other regions around the world.

Based on the Internet field, relying on Huawei's strong capital and strong cloud computing R & D strength, Huawei cloud provides basic cloud services, including cloud hosting, cloud storage, supercomputing, content distribution and acceleration, video hosting and release, enterprise it Cloud computer, cloud conference, game hosting, application hosting and other services and solutions.

Amazon AWS

Amazon Web services (AWS) is a professional cloud computing service provided by Amazon. It was launched in 2006 to provide IT infrastructure services to enterprises in the form of Web services, commonly known as cloud computing. One of its main advantages is that it can replace the early capital infrastructure cost with a lower cost that can be expanded according to the business development.

Users can choose the appropriate type according to their needs to help you maintain an appropriate control balance and avoid meaningless heavy work. At present, many customers use AWS to build complex applications. Because many users use it, it also accelerates the pace of AWS in machine learning, artificial intelligence, Internet of things and serverless computing.

The services provided by Amazon Web services include: Amazon elastic computing cloud (Amazon EC2), Amazon Simple Storage Service (Amazon S3), Amazon simpledb, Amazon Simple Queue Service, Amazon cloudfront, etc.

 

Arm Pelion Internet of things platform

 

Arm Pelion Internet of things platform is the industry's first end-to-end Internet of things connection, equipment and data management platform, enabling enterprises to seamlessly and safely connect and manage Internet of things devices and data of any scale, and explore the value of the Internet of things.

The Pelion IOT platform will enable companies to seamlessly and securely connect and manage IOT devices and data on any scale. The platform is suitable for public and private clouds and local and hybrid environments, providing maximum flexibility for the system architecture of the Internet of things. This will enable enterprises to quickly transform the Internet of things and enterprise data into business insight that can unlock new opportunities for them and their customers. Pelion IOT platform will also unify billing, so as to reduce infrastructure costs, improve operational efficiency and eliminate integration pain points.

Xintang numaker-iot-m487 platform supports a variety of embedded real-time operating systems (RTOS), including Alibaba, Alios, Amazon FreeRTOS and arm mbed. Customers can select different RTOS and quickly bridge to different cloud services, such as Alibaba cloud, Amazon Web services (AWS) and arm Pelion.

•Program features

 -Support for Alios things

-Support Amazon FreeRTOS

-Arm mbed support

-Alibaba cloud, AWS, arm Pelion platform certification

•MCU features

-  M480 (32-bit Arm® Cortex®-M4)

-192 MHz main frequency

-512 KB flash and 160 KB SRAM

-Support Ethernet interface

•System diagram

 
 

Xintang numicro & reg; M487 Ethernet series with arm & reg; Cortex®- M4f is a high-efficiency and low-power microcontroller with DSP instruction set. The system can run up to 192 MHz, and the power consumption under dynamic operation is only 175 & micro; A/ MHz 。 Built in up to 2.5 MB flash memory (flash) and 160 KB SRAM, including 32 KB cache for accelerating external SPI flash execute in place. Before leaving the factory, the bootloader is burned in advance to provide the secure boot function, which can check the integrity of the code stored in the built-in flash memory, integrate the secure protection ROM, and provide a secure space for storing confidential programs or data. Built in one-time programmable ROM block, which can be used for product life cycle management.

 
 

NuMicro® M487 Ethernet series supports 1.8V to 3.6V operating voltage and - 40 & deg; C to 105 & deg; C industrial operating temperature. This series is additionally configured with 10 / 100 Mbps Ethernet MAC, RMII interface and hardware encryption engine. The package type includes lqfp64, lqfp128 and lqfp144.

 

Arm & reg; is supported on the numaker-iot-m487 development board; Mbed ™ OS, integrating common components, built-in multi axis sensor, providing compatibility with Arduino uno and mikrobus ™ Interfaces, whether GPIO, UART, ADC, PWM, SPI or I2C, can be connected; Built in sensor module numaker brick I2C interface of Xintang building block concept; It provides a unique simulation image sensor interface, which is connected with CMOS image sensor and can be used to intercept images for analysis; Combined with nau88l25 audio codec, it provides high-quality recording and playback function; External SPI flash and microSD card slot are provided to increase additional data access space.

Numaker-iot-m487 provides multiple networking modes and multiple interfaces, as well as image sensing, audio recording and playback functions and elastic expansion of data access space. No matter what users need is endpoint devices or lightweight gateway applications, numaker-iot-m487 is the best choice for Internet of things applications.

Key characteristics:

• core

-Up to 192 MHz arm & reg; Cortex®- M4f core

-DSP instruction set

-Memory protection unit

• memory

-Up to 2.5 MB flash memory

-Up to 160 KB RAM with 32 KB external SPI flash cache

-4 KB security block (sprom)

-2 kb one-time burning block (OTP)

• cyclic redundancy check (CRC) unit

• 16 channel peripheral DMA controller

• external bus interface

-LCD parallel interface, i80 mode

• clocks

-4 to 24 MHz crystal oscillator

-32 kHz oscillator for RTC

-Internal 12 MHz RC oscillator

-Internal 10 kHz RC oscillator

-Internal PLL up to 480 MHz

•  RTC

-80 bit group backup register

• timer and PWM

-4 32-bit timers

-12 enhanced PWM with 12 16 bit timers

-12 basic PWM with 2 16 bit timers

-1 24 bit countdown systick timer

-1 watchdog timer

-1 x watchdog timer

• encryption and decryption engine

-  ECC ( P-521, B-571, K-571 )

-  AES-128, 192, 256

-  DES/ 3DES

-  SHA-160, 224, 256, 384, 512

-  HMAC

-Random number generator

• analog peripheral

-1 12 bit, up to 16 channels, 5 MSPs SAR ADC

-2 12 bit 1 MSPs DACs

-2 rail to rail comparators

-3 operational amplifiers

• communication interface

-Up to 6 low power UART interfaces (17 Mbps), including 2 Lin interfaces

-Up to 3 iso-7816 interfaces (3.4 MHz) supporting full duplex UART mode

-3 I & sup2; C interface (up to 3.4 Mbps)

-One SPI flash interface (up to 96 MHz) supports four wire mode

-1 four wire SPI interface (up to 96 MHz)

-Up to 4 SPI / I & sup2; S interface (SPI up to 96 MHz, I & sup2; s up to 192 kHz / 16 bit)

-1 I & sup2; S interface (192 kHz / 32-bit)

-Two usci interfaces, supporting programmable UART / SPI / I & sup2; C

-2 can 2.0B interfaces

-2 SD card controllers (50 MHz)

• control interface

-2 orthogonal codec interfaces

-Two 24 bit 3-channel input capture counter units

• advanced links

-USB 2.0 high speed device / host / OTG controller and built-in phy

-USB 2.0 full speed device / host / OTG controller and built-in phy

-10 / 100 Mbps Ethernet MAC and RMII interface

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