Going abroad you will need to bring this knowledge all over the world counterfeit

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Going abroad you have to take this on, a distinguished world counterfeit money

A machine in hand, hahaha. Lunatik iWatch frame

Counterfeit money is secured, hahaha.

///////////////////////说点正经事的分割线/////////////////////// Lunatik iWatch Case

Science and technology in development and social progress. Whether you like it or not, the dark side of counterfeit, also with the same speed, in advance. As increasingly wealthy in hand, for people wishing to travel, opening her eyes, challenging counterfeit foreign currency, it is impossible.

Once you have got, apart from strangers is completely out of luck, wailing I borrow a pair of eye, there can be other ways?


Verus d is a compact desktop security and protection system. It does this by detecting note Clarity c the unique physical and optical properties of the film, to judge the authenticity (specifically small make up does not preach, so professional!! )。 If you insert money and properties, and Verus d lit the red light and sound warning. Can currently detect 24 countries 78 bank note.

How, while testing all over the world almost meant, but always felt at ease many wow ~

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Apple Apple Car launch will be extended to 2021


Beijing time on July 22, according to the online edition of Fortune reported, although technically Apple Car does not yet exist, but media reports said it published has bounced.

The Information published an article citing sources said Apple’s own-brand cars will be released until 2021. More rumors are claiming that Apple plans to release in 2020 Apple Car, but according to The Information people give, the project “challenged” Project Titan, a former member of the team confirmed that Apple has Apple Car plans to release from 2020 to be deferred to the year 2021. Project Titan team responsible for developing Apple Car.

Apple Apple Car launch will be extended to 2021

The past few years, there have been media reports that Apple was in the development of automatic driving electric vehicles. Although Apple has not confirmed media reports, company CEO Tim Cook (Tim Cook) kept quiet about the Apple Car topics, from Project Titan team is a lot of rumours, Tesla’s CEO ailong·masike (Elon Musk) Apple project, called Silicon Valley “confidential secret of the worst,” he even called Apple “Tesla’s gravedigger.”

Analysts said Apple needs a major innovation of the new product, car can play this role.

However, compared with the development of new smart phones or computers, and develop cars much harder, and for Apple, the car is a new field. Media reports said Apple engineers with experience in hiring large numbers of cars, the company leader qiaoni·aiwei (Jony Ive) is also studying car design. Moschino iPad Air Case

Some veteran cars in China was critical of Apple building cars. Former GM Chief Executive Officer Dan·akeersen (Dan Akerson) said last year that because of the high cost and low return, Apple should not build cars. Former GM Executive Bob Lutz (Bob Lutz) last September, told CNBC that Apple will face “huge money trap” threat, “Apple has no experience in automobile industry, has no reason to believe that the Apple than General Motors, Ford, Volkswagen, Toyota and Hyundai have done better”.

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Apple Apple Car launch will be extended to 2021

According to AppleInsider reported that Apple Car develops problems, one of which is the former head of the project shidifu·zhadisiji (Steve Zadesky) left office in January. If all of the data required to deal with self-driving cars, Apple needs to improve cloud computing infrastructure. A self-driving car 2-10GB data can be generated every 1 mile. Moschino retina iPad Air case

It is not clear whether first generation Apple Car has automatic functions. After media reports said the first generation of Apple Car up to have semi-automatic driving capabilities.

Scientific talent is such data Microsoft introduced the data professional degree


Scientific talent is such data, Microsoft introduced the data professional degree programs

Today, data scientists may be the most sought-after talents in the market, have been rated as “the sexiest job in 21st century”, but 20 years ago, this name exists only in a few papers.

Toronto, July 13, Microsoft WPC (World Partner Conference) announced the “Microsoft professional degrees” (MPD) project, the employer provides accredited, college-level courses, the target object includes no background knowledge of young people, and has been working for some time on the job-related professionals. Related courses have been on the edX.org line, edX.org by the Harvard University and the Massachusetts Institute of technology, founded the free online learning platform.

Scientific talent is such data, Microsoft introduced the data professional degree programs

From: edX

Data Science Talent currently on the market there are many vacancies. Steven Guggenheimer, Microsoft Vice-President said: “cloud technology and a booming software services offers many opportunities for our partners, but is in contrast, we find that there is talent in many fields of technical faults, MPD project is to meet the growing demand for training. ”

Soon after announced the news, as a first course of MPD project-“data science” (Data Science Curriculum) in edX launched this course by Microsoft and Colombia University co-production, a total of 9 classes, as well as a “final project” (Final Project). Related to data mining, data modeling, machine learning, data visualization, and more, you need to learn Excel T-SQL, Power BI, Azure, r and Python languages and other tools. Interested students can click here to enter the MPD program page.

Scientific talent is such data, Microsoft introduced the data professional degree programs

From: edX Paul Frank iPhone case

Paul Frank iPhone case

All courses are free, but if the MPD wants Microsoft certification, you need to pay, each course ranges from $ 49-99.

Microsoft is not only in the field of online education IT giant, Google employees founded Udacity provides Android Nano online degree (Android nanodegree) and other related courses, Google co-founder Sergey Brin, often in cameos in the curriculum, Udacity outstanding students have been invited to visit Google headquarters. Paul Frank iPhone case

Design of UAV flight control systems and how


Lei feng’s network (search for “Lei feng’s network”, public interest): the author drones channel (ID:auscor), concerned the drones.

Is the core of UAV flight control system control unit, equivalent to the drone’s brain, fitted with flight control system model is no different from that of common air, an important symbol.

After early r/c flying in, and its navigation and intelligent flight control modes have been developed for autonomous flight. Navigation changes on accuracy of the flight control computers put forward higher requirements; with the increasing complexity of UAV mission, flight control computer requirements are also higher operational speed and miniaturization requires flight control computer power and volume are also put forward higher requirements. High precision not only requires a computer with a high control precision, but also capable of running complex control algorithms, miniaturization requires UAV’s small size, good mobility, and control the size of the smaller the better.

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Design of UAV flight control systems and how?

Many processor chips, the most suitable for small flight control computer CPU chips are the TI company TMS320LF2407, their speed and numerous peripheral interface is great for complete real-time control functions of the UAV.

It used Harvard structure, and multilevel line operation, on data and instruction while for read, tablets within since with resources including 16 road 10 bit A/D conversion device and with automatically sort function, guarantee up 16 road has conversion in same conversion during for, and not increased CPU of overhead; 40 road can separate programming or complex with of General entered/output channel; 5 a external interrupted; integrated of serial communications interface (SCI), can makes its has and system within other controller for asynchronous (RS 485) communications of capacity ; 16-bit synchronous serial peripheral interface (SPI) can easily be used to communicate with other peripherals; also offers watchdog timer module (WDT) and CAN communication modules.

Flight control system modules OtterBox iPad Mini Case

Fly control system real-time collection the sensor measurement of flight State data, and received radio control Terminal transmission of by ground control station uplink channel sent to of control command and the data, by calculation processing, output control instruction to implementation institutions, achieved on no machine in the various flight die state of control and on task equipment of management and control; while will no machine of State data and the engine, and airborne power system, and task equipment of work state parameter real-time transfer to airborne radio data terminal, Radio downlink is sent back to the ground control station.

Design of UAV flight control systems and how?

Divided according to function, the flight control system hardware including: main control module, signal processing and interface modules, data acquisition module and servo-driven module. 

Module function

All function module combination in with, constitute flight control system of core, and main control module is fly control system core, it and signal conditioning module, and interface module and rudder machine drive module phase combination, in only need modified software and simple changes peripheral circuit of based Shang can meet series small no machine of flight control and flight management function requirements, to achieved once development, more model using, reduced system development cost of purpose. System complete the following functions:

Design of UAV flight control systems and how?

(1) complete the high-precision acquisition of analog signals, including fog, heading signal signal, rudder angle, engine speed, cylinder temperature, hydrostatic sensor signals, power supply voltage, and so on.

Due to the CPU comes with a/d converter precision and number of channels is limited, so use an alternate data acquisition circuit, chip select and control signal is generated by EPLD decoding circuit.

Design of UAV flight control systems and how?

(2) output digital signals, analog signal and PWM signal can adapt to different implementing agencies (such as the rudder, aileron servos, airway and lifting rudder, throttle servos, etc) control requirements.

(3) the use of multiple communication channels, respectively and airborne data terminals, GPS signal communication devices, digital sensors and related tasks. Due to the SCI CPU serial channel configuration does not meet the system requirements, use a serial port expansion chip design 28C94 to extend the 8 serial ports.

System software design OtterBox iPad Mini Case

The software design is divided into 2 parts, namely logic circuit chip EPLD decoding program design and application design of flight control system.

Design of UAV flight control systems and how?

Logic circuit design

EPLD used to form digital logic circuits, complete decoding and isolation, as well as to provide A/D,D/A,28C94 chip select signals and read/write function of the control signal.

The software design using schematic hybrid design and VERILOG HDL language programming, follow the design input design → implementation → verification → device programming processes. System uses two ispLSI1048 chips which are used to achieve the A/D,D/A control and control of serial port expansion chip 28C94, parameters derived from wing net interest drones.

System application design

Application, system, programs written in c language can not only, but also directly controls on computer hardware as an assembly language, programs written in highly portable. Because the DSP core design involved a large number of foreign based port operations, as well as considering subsequent transplantation work, so applications choose BC 3.1lai flight control system design, realization of flying control and flight management functions, respectively.

Design of UAV flight control systems and how?

Software by function is divided into 4 modules: time management, data acquisition and processing module, communication module, a module to calculate the control law.

Through time management module in milliseconds level time within on no machine for real-time control; data acquisition module collection no machine of flight State, and attitude parameter and flight parameter, and flight State and the flight parameter for telemetry coding and through serial interface transfer to airborne data terminal, through wireless data channel sent to ground control station for flight monitoring; attitude parameter through software internal interface sent control law solutions is module for solutions is, and will results through D/A channel sent airborne servo system, control rudder machine run, reached adjustment, and The purpose of aircraft attitude; communication module to complete the flight control computers and other data exchange between onboard peripherals function.

Design of UAV flight control systems and how?

Using high-speed DSP control chip in control law calculation and data processing aspects of advantage and rich of external resources, tie mass can programming logic devices CPLD and serial interface extended chip 28C94 design small airborne fly control computer, to its for core design of small no machine fly control system has function full, volume small, weight light, power low of features, is good to meet has small no machine on fly control computer high precision, and miniaturization, and low cost of requirements. The design has been successfully applied to a verify that the unmanned aircraft systems.