Precision nots allow in the influence in content couplet net small gaze ~
[introduction] content couplet net (IoT) is very simple on the concept, join all facility that take sensor or controller to Internet namely (and / or equipment each other are linked together) . Equipment of content couplet network is all-embracing: Component of mobile phone, home appliance, car, machine, machine, can apparel equipment …… and hold the post of how thing of his your thinkable, amid of all without exception. But, content couplet net is a join nevertheless on the principle expand of the cloud survey signal chain.

Graph 1. Sensor comes cloud signal catenary
Detect / measure parts of an apparatus to change imitate signal data of amount to word to flow. Get, processing, transmit, after analysing this number pattern, can make according to the result decision-making. The physical phenomenon such as will smooth, sound, pressure and temperature changes data of amount to word already was very old-fashioned concept. Develop as content couplet net, the use of cloud mode and computation build a model (reach its by the cloud large-scale memory and processing capability implementation) might had been changed be based on digital data to make decision-making way. The tradition that such as temperature measures and so on detects the technology already was understood adequately to apply, its can use as already a kind of independence is measured, also can become other a detected element. Detect in electrochemistry for example in, temperature can be affected measure an outcome, need gives processing. Also appeared additionally a few exciting new-style sensor, their meeting produces tremendous effect to world of content couplet network.
Among them an example is MEMS accelerometer. These sensor form the basis that much axis vibration detects, support does not have the system such as equipment of man-machine, portable play or camera to keep stable. Health dogs equipment also uses vibration to detect the individual is healthy. Can apparel type health and gymnastical sensor need are permanent switch on the mobile phone, offer movement of high accuracy body to so that undertake proper analysis,detect (for example ran, ride a bicycle or walk) , transmit real time data all sorts of portable health and gymnastical application.
It is with accelerometer exemple, what should we notice in equipment of content couplet network? Does more accurate measurement have why value? Want to answer these questions, can consider low power comsumption above all. The ADXL362 of ADI company is one exceeds accelerometer of MEMS of low power comsumption, 3 axes, the power comsumption when output data rate is 100 Hz under 2 μA, spark in motion wake up the power comsumption below mode to be 270 NA (MEMS accelerometer measures a static state or trends quickens force) . Can lengthen batteries to use time so. Next, consider bandwidth and resolution. ADXL362 won’t because of owe sampling and mix fold input signal; It uses complete data rate to undertake sampling to the whole bandwidth of sensor, noise is very low. Accordingly, it can measure very small signal. Noise n asks to be worth the application of 550 μg/√Hz normally under ADXL362, can choose mode of two kinds of low noise (typical cost is low to 175 μg/√Hz) either is planted, source current raises minimum.

Graph 2. The MEMS accelerometer of lowest of industry power comsumption
More the data of high quality is very important:
Nicety is measured have why value, why count for much? Parts of an apparatus of low noise, low drift can utmost land increases sensor capacity, realize wider dynamic range, thereby the signal that hardware can measure smaller, more sort. This makes terminal system more accurate, more acute, provide poor dissimilation more. Use taller precision to be able to be developed can satisfy the platform hardware that gauges demand with future now at the same time, support better defend the development of frequency band.
Accordingly, same hardware can be used at several acting products, have cost to be able to reduce, and can avoid the labor that hardware replaces and high cost. For net of couplet of this pair of content especially such, because sensor reachs the amount of relevant hardware,predict growth of meeting explosion type. The market analyses company Gartner to express: Arrive to there will be the interconnection facility of more than 26 billion 2020, the just like of join is astronomical. In addition, apply extensively because of convenience sex at catenary of signal of content couplet net as wireless join, the unit of content couplet network in be located in the harsh environment such as the place that is close to hard or factory will be increasing. Element of the last consideration is the government is discharged to gas, the superintendency requirement that waits for many respects with report and environmental control is stricter and stricter. Likely new orders and the requirement that change ceaselessly have need hardware to realize more accurate measurement, better measurement the system can offer lead thinking to help satisfy these requirements. Be in close-packed and on the market of content couplet net with intense competition, whether those who satisfy future is new measure what demand issue involves a company to live or die.
Accordingly, how does the value that stabilizes accurate hardware to measure platform emphasize also be again. After building platform, can realize systematic difference to change through software. In the market of content couplet net of intense competition, these ability are the fundamental condition that the enterprise shows itself. In addition, the system upgrades can more relaxed, simpler, and can be finished in real time.
Lawful data is crucial
To ensure the data that content couplet net maintains in ecosystem is proper and lawful, a lot of elements need a consideration. Content couplet net can explain to arrive all the time from “ thing ” a lot of layers of the cloud. Each may have a new exterior link, exist relevant safe risk. Possibly still one returns way, return “ thing ” through each. It is more than it is with equipment, network or client end is concerned, still involve a lot of surface area, every area interrelates possibly. For example, arrive from equipment the cloud or arrive from equipment classics gateway the cloud. The target of lawful sex is to ensure each safe. As the grow in quantity of connective thing, cloud and gateway, the place that produces safe flaw easily also can increase.

Graph 3.
OWASP (open mode Web uses safe project) affirmatory content couplet net 10 large safe hole are as follows:
● Insecure Web interface (XSS, infuse, network fishs)
● The identity test and verify of impropriety / accredit
● Insecure network serves (SSH, SFTP, Telnet)
● Lack transmit add close
● Privacy issue / be deeply concerned
● Insecure cloud interface
● Insecure mobile interface
● The safety of impropriety is configured
● Insecure software / firmware
● Bad physics is safe
In the cloud, the data that safe menace may behave the discharge outside be data, accident is lost or data have things stolen. Without doubt, cloud service can accommodate many clients (much tenement) , so need ensures place of safety lies between each clients. This brings the issue that other need considers. When this locality keeps online or producing data to interrupt, how much is systematic capacity? How many positions share data and to how many positions share data and ensure public security truly complete? What safety level to use? Whether backup data, especially when because of content couplet net explosion type grows data bulk? Applied process interface (API) will serve development through same cloud and memory is used at many clients, accordingly, how to carry out identity test and verify and accredit (and how to protect the prerogative user such as the administrator) very important.
Examine and evaluate the cloud to serve a provider to have a lot of methods. A kind of mechanism is to adopt open safe guideline. Industry is improving the cloud safety manual with these general whole worlds continuously, and more and more requirement service provider realizes relevant attestation in order to abide by these guidelines.
But, safe care not cloud of be confined to. In each class stack, have browbeat relevantly and make a technology instead. Equipment of content couplet network and gateway are likely by theft or distort, data may be distorted or be visited by blame accredit user. To this, distort detector, add close or set remarks book to be able to use as make step instead. Software or firmware may become the target that network fishing, baleful software is atttacked or distorts. Accordingly, will authentic operating system, safe be absorbed in arrives in development lifecycle and flaw checks very important. Software deploy arrives after the spot, it is very important also that through safe mechanism updates software. If use insecure passageway to transmit data, distort, eavesdrop or attack can have an opportunity that can be exploited to sbs advantage. Accordingly, transmission passageway adds close, port / interface management and it is very important to be monitored actively continuously. In data privacy respect, must let client height be at ease. Again small to privacy right encroachment, make possibly also the brand of the company and fame destroy one of dawn. Accordingly, use data to add the good way such as secret technology will decrease as far as possible or the data of littery memory and reservation is very important. Strategy of global privacy data is developing continuously and change. Below unanimous premise, the superintendency difference that through flexible system handles world different region is very important. Using order arrangement, should pass user identity test and verify and accredit to prevent not only not accredit visit, and should check code to have continuously without flaw. Return the protection outside belt of Lv of take an examination, for example WAF (firewall of Web application process) , and be kept apart when be atttacked and the ability of block account. Afore-mentioned all turning over make measure can apply, but security must blend in ecosystem in, is not undertake transforming finally.
The system of content couplet network of intelligent interconnection
The either class of catenary of signal of content couplet net can increase intelligence (or data processing) . Ask for in life style for example monitor (in VSM) , when temperature reachs dangerous level, sensor end can be given out directly call the police, and need not transmit temperature data to high in the clouds. Temperature data also can be used in computation of medicine of other live thing, accordingly, it also can be used in gateway or cloud.
Undertake in node signal processing has many profit, include to support road of compact compositive feedback annulus to wait. Sensor of close together coupling and carry out implement advantage is OK make instantly decision-making. For example, vibration is achieved when booking a level, can close instantly stop machine or electric machinery; When the temperature in conservatory rises to certain level, open a window with respect to meeting drive electric machinery. It is to the requirement of node small size is mixed exceed low power comsumption (prolong battery life thereby) , the compositive imitate such as the ADuCM360 of ADI company is small controller collect ARM®M3-MCU and 24 modulus converter at an organic whole, can satisfy these requirement. Future, can using the parts of an apparatus that collects energy to realize the sources of energy to become independent thereby will be successful key. The several word processing on node accept the restriction of space and power comsumption. Still having a bit is hard the data of aggregate other origin. The low power comsumption of node can restrict data to transmit limits and effective load. Come through node management state of stand-by and carry out newer meeting very troublesome, at the same time the hardware of network brim, software and data also are put in safe risk.
The signal processing that is based on gateway uses device of gateway of content couplet net, one of end have short range wireless sensor network (WSN) link, another end has LAN or WAN link. It and road by implement similar, also can be sensor collect line implement. Besides WSN network management and safe function, it often still uses as the computational resource that this locality is handled and analyses (call the brim to calculate normally) . The advantage that is based on gateway processing is to be able to use resource of many and potential processing, and can aggregate and other sensor / the data of origin. Accordingly, analytic ability runs around network brim, add the analytic technology that uses development of off-the-peg development tool place, will conduce to the solution with more friendly to IT branch implementation. It is capable to support complete stack OS, the security with use the LAN/WAN network technology that brings a standard to manage a tool remotely to offer better (nevertheless physical safety may exist risk) . On the other hand, it does not belong to low power comsumption normally kind, need wired power supply, and data storage is finite.

Graph 4. Give typical examples of gateway of content couplet net
Cloud connective is main one of advantages are to be able to store, retrieve and search mass data record, these data logging can include historical data and the data that come from a lot of equipment. To be based on the signal processing of the cloud, data storage is mixed with big data processing below a lot of circumstances closely related the analysis. Only memory data is insufficient. Quick visit and the demand that analyse data facilitated the generation of a lot of new methods, use simple process designing model and frame opening a source, big data set can undertake distributed processing on many computers group. The distinct advantage that is based on cloud processing is to have a large number of inside the potential computation of buy security and memory resource are usable. Open source and commercial development tool increasingly grow in quantity, terminal solution can expand easily.
Think software serves namely now (SaaS) is contribution of cloud calculative key, additionally still infrastructure serves namely (IaaS) , platform serves namely (PaaS) , desktop serves namely (DaaS) , mobile back end serves namely (BaaS) and IT government serve namely (ITMaaS) . All these offerred wide selection to get used to terminal system demand jointly. To be based on the processing of the cloud, the server is mandatory it is indispensible (can be in this locality or long-range) . Memory and service have relevant cost, communication and big data store may very costly. Still have a few otherer defect, for instance the defer of Internet communication channel and handling capacity may be forecasted hard.
Develop as system of content couplet network, intelligent system is broken up also can develop, the intelligent rate of node can rise. Node never creates wisdom and knowledge, also namely before arriving at high in the clouds, data still is pure data only; And change and send all data to need to use up a large number of electric power and bandwidth. Intelligence detects is to point to changeover of data of division name a person for a particular job to be information, reduce total power comsumption thereby, reduce defer and bandwidth waste. In a word, its support arrives from net of reaction content couplet forecast model the change with net of couplet of real time content.
Want to realize design of outstanding content couplet net, need to overcome countless challenges, include good measurement, security and know to should be in the where in diameter of network of whole thing couplet efficient use intelligence. In addition, the solution can involve network of whole thing couplet a lot of suppliers, include sensor, gateway, software and memory provider. Supplier of net of couplet of content of ADI company since, also be client of content couplet net, the ADXL362 accelerometer that we use ourselves (still have other the sensor that measures temperature and humidity) the production equipment that the factory captures in monitoring benefit silent. Through measuring the change of machine or mode of electric machinery vibration, can stop in the system detect before machine breakdown, nip in the bud. The profit that brings from this is to be able to be executed forecast a gender to defend a program, improve a plant efficiency and produce can. The plan of content couplet network of ADI company is the much stage equipment in complex workmanship (new old coexist and come from much home supplier) provide comprehensive monitoring and analytic system. This system dogs in real time and the report manufactures efficiency, remind technician to note the problem that appears possibly, avoid equipment to stop machine. Brilliant round fine is tasted because this gets rising,lead, supply stabler, the client that conduces to us makes better program. This example showed the real value of system of content couplet network. The complexity of system of content couplet network and limits allow to undertake with a lot of means signal is handled. system of content couplet network medium processing changes the brim to be able to promote the intelligence of sensor rate from high in the clouds, let information extraction be close to origin more. The network has processing resource to be able to be used in brim node, gateway and cloud, bandwidth of the brim node power comsumption that the system designs personnel to be able to optimize a solution, data, computation and memory ask.