Point out according to IHS Markit, content couplet net (IoT) device will increase to 75 billion to 2025. The PC market that the growing extent of IoT market is equal to took the place of 1990 and acting 2000 mobile phone market. Although these markets also can follow time evolution, but its are basic demand is very clear, fragmentary nevertheless and queasy big IoT market is different. New join standard appears continuously, the framework of ability; foundation that has not see can complete conformity at present already was used tens of year, what use wired communication agreement mostly is old model system urgently reforming, ability and new IoT environment each other are connected.
Although join the standard still is in development, brim node (namely the content in IoT) because quantitative general is cleverer, more intelligent sensor and send move implement be thrown in great quantities and increase quickly, to include supplier of terminal client, service and original equipment manufacturer (the whole ecosystem of OEM) brings profit. For example the terminal unit in industrial system, if can be mixed with long-range sensor, other terminal unit communication of central management console, its reliability and productivity will win improvement.
Feeling of arrival of IoT for generations measures a technology to need more intelligence
Want aggregate and complex communication standard to link these sensor Internet, it is this the biggest difficult problem that covers market of device of 75 billion above (graph 1) . And should build an omnipresent high in the clouds, device must support a variety of communication agreements, and can issueing link and collaboration without complete aether network, or the Wi-Fi port that supports stack of embedded communication agreement.
Graph 1 intelligence gateway conduces to management and link node of 75 billion brims comes high in the clouds.
Want to implement this kind of practice, need can device from sth resembling a net of local area network (LAN) , link bridge receives the server network gateway of join Internet. Gateway but program of integrated IoT representative, the standardization communication agreement that serves supplier place definition through high in the clouds and server of high in the clouds are interactive. In addition, after gateway joins intelligent function, can access the processing resource that share, more conduce to simplify the design of IoT device.
Apply the feeling that has intelligence more to measure a technology, conduce to urge IoT climate, but the industrial gateway concept that the key of the article depends on how introducing intelligence, overcome fundamental framework place to be faced with link node of more than 75 billion brims the challenge to high in the clouds, build dovish and but the gateway solution that each other knows, ioT develops personnel can more dedicated the competition ability at promotion IoT solution.
Join for IoT the biggest design is challenged
IoT technology has great progress on industrial application, let link terminal unit to produce its value in reliability of automation, system and the domain such as central management, its already showed potential in a lot of different industry domains, include family expenses and commercial to warm an air conditioning (HVAC) , building conserves system and factory automation, and the sources of energy of infrastructure of electrified wire netting is measured with the network that monitor.
The challenge with IoT the biggest design comes from at join, should come true dovish and safe network or wide area newwork (WAN) is accessed, already exceeded a lot of experience range that design staff. More difficult is, development staff needs to support the many unit with processing limited capability, and after joining join function, still cannot be opposite whole system cost or power source efficiency bring negative effect.
Gateway must support the diversity of terminal, also bring more consideration for the design. Wanting to will resemble is the simple and easy node such as pressure sensor is linked directly to Internet, its design may be very complex and costly, especially if node does not have independent processor. The kind that adds terminal unit each different, supportive interface is very different also, if want to assemble from dispersive node,collect integrated data accordingly, have need a variety of processing capability and interface, can stabilize again at the same time and the bridge that runs reliably receives unit.
Gateway can simplify conveniently ” device ” couplet net, all sorts of link pattern that supportive node lays formerly, no matter be the each other inside voltage of primitive sensor changeable, coder,connect integrated circuit (the data of I2C) is strung together stream, or it is blue tooth of home appliance by (of Bluetooth) update regularly. Gateway can incorporate the data that comes from different origin and interface, go to these data link Internet, reduce the much change of device and diversity effectively. Come so, what individual node does not need interface of for the link Internet of burden high speed is complex spend or cost.
Graph gateway of 2 indication out of the ordinary will be linked outspread all sorts of means to node. The node in graph 2a involves connection to high in the clouds through the net, because these node do not support Internet communication agreement (IP) , cannot link directly to Internet / WAN, can apply existing wired or new wireless technology to link only to gateway, add up to cost effectiveness in order to realize accord with and inferior and complex spent link mode. Gateway defends program of an IoT representative for every node, use at all data of management and node come-and-go. Here the circumstance falls, applied process intelligence also can integrated within gateway.
Gateway of graph 2 IoT can centralize IoT function at gateway, thereby simplifies the link design of sensor node. Node is applied wired come through gateway link with wireless technology IoT(a); node applies Wi-Fi or online and direct link reachs the WAN such as aether network Internet (B) .
The node in graph 2b applies Wi-Fi or online and direct link reachs the WAN such as aether network Internet, right now gateway basically serves as a road by implement use; and its also can use as actually road by implement, let every node have his IoT representative program, have own government.
Intelligent gateway reduces node complex degree
What the basis applies is different, industrial gateway has different fact to make way each. Traditional gateway and intelligent gateway are among them two the commonnest kinds, these two kinds all can aggregate the data that comes from many end points, provide integrated type link. Generally speaking, traditional gateway can discharge foreword data and build a packet, convey in order to go to the lavatory through Internet, also be in charge of applying send of lieutenant general data to answer end points in what admire Lai Huo to need two-way communication additionally.
Ask an attention, gateway and road by implement different. Road by implement the unit that runs similar discharge, link to share common interface, for example, join comes family expenses road by implement and the device that uses IP entirely. relatively below, gateway function as net bridge, can road by the discharge of different type, polymerization comes from the data of different communication interface, and can string together these shed changeover to be common communication agreement, cross WAN in order to go to the lavatory to access.
Some device may give birth to use IP formerly, resembling is Wi-Fi or Thread, other IP of some use blame communication agreement, resembling is Bluetooth or all sorts of Sub-1GHz communication agreements. The converter of imitate revolution word that the node that belongs to sensor may need to use tall precision (ADC) , change primitive imitate voltage numerical value of amount to word first before convey.
Intelligent gateway is farther the function of outspread and traditional gateway, provide processing resource and the intelligence that can process this locality application. Its run means to include to share processing resource, will execute the operation that executes for node normally by gateway. For example, intelligent gateway can judge make allowance for to filter sensor data, still can solid make high-ranking government work. Or it is to judging make allowance for to filter after sensor data, decide whether its exceed crucial and critical value, spark then alarm, still can deliver alarm by network up next, notify right manager.
Intelligent gateway can be reduced for brim node complex degree, reduce cost at the same time. Join with of a large number of sensor conserve the system is exemple, processing exercise conformity arrives gateway, let brim node can share resource, shorten this machine handles time, reduce use power consumption, lengthen batteries endurance then, achieve the result of economic cost.
Same principle also conduces to establish link. IP is complex arrive hard solid made communication agreement, to more simple and easy IoT node, its work load is opposite bigger, because this simple and easy node can use the wired connection such as RS-485 or I2C, or receive LAN repeatedly with the wireless interface such as Bluetooth.
In addition, gateway still can link individual local area network subsidiary channels in the human body through which vital energy (PAN) , receive each link bridge interface of the IP such as Wi-Fi or aether network WAN next. Can reduce below these two kinds of circumstances processing, memory and the demand that use phone, node besides reduce cost, also can promote efficiency.
Distributed intelligence can quicken new applying
Turn gateway intelligence, can solve this machine each other to handle sexual issue, what reforming at the same time existing system place needs is fluctuant decrease least. Had intelligent gateway to partake main task of the part and digital operation, each brim node does not need again built-in and whole intelligence. Gateway still can analyse the data that comes from each brim node to pass conformity, make more of intelligence decision-making. Gateway can be accessed in Internet interrupt, or the conduit that adjacent node serves as when cannot be being used temporarily, maintain the stability that links without this machine when high in the clouds, raise the reliability of this machine network, maintain its beforehand the function of set.
Turn gateway intelligence still have another profit, it is the government that helps new function of operation personnel conformity. Technician and operation personnel need not part conformity and safeguard each brim node, should use gateway and construction management system only (the system such as BMS) , can manage a network centrally. Intelligent gateway still can solve the problem when linking independent node, allow an user need not the hand is moved reach each long-range node link Internet.
To a lot of application, intelligent gateway spot of leave out appropriative manages or can control terminal. For example, built-in LCD (the gateway of LCD) controller is supportable user interface, make an user direct operate node. Or, intelligent gateway can offer webpage user port, access in order to offer from computer of PC, flat or intelligence mobile phone, make an user relaxed access other and built-in applying. Gateway can serve as agile and the spot reference point of movable condition set is used, thereby reduces the installation cost of new system, and let tripartite can introduce new technology and device with more low introduction cost.
Integrated and wired establish extraordinary service with batman of wireless join MCU
Should make an intelligent gateway that accords with all sorts of join technologies and industrial demand, must want to face all sorts of complex problems, and should develop can dovish move and the gateway that each other connects, it is a formidable task more. The likelihood should spend on several months or several season time, ability is designed and make gateway and software foundation framework, make security of its give attention to two or morethings, complete application is designed, the system of the deploy before be aimed at eye is made adjust, join new join communication agreement to come node of aggrandizement, integrated brim and high in the clouds.
For this, semiconductor industry person, be like heart state apparatus (TI) , small controller of network of aether of new generation of research and development (MCU)- – 3) of SimpleLink MSP432E4(graph and SimpleLink software development tool are wrapped (SDK) , development staff can apply his to enter rank plug-in unit of integrated, wireless link and unified tool catenary, accelerate the rate that intelligent gateway designs.
Graph 3 SimpleLink MSP432E4 MCU can be used at solid the controller of visit of media of integrated type 10/100 that makes intelligent gateway and physical layer (MAC+PHY) .
This MCU carries core of 120MHz Arm Cortex-M4, support floating-point function, and MAC of network of integrated 10/100 aether is mixed PHY. Built-in PHY can reduce chip package amount (include) of passive type component, simplify the design is complex degree, and reduce the noise that comes from exterior question mark, in order to reduce integral cost; and will need should reduce printed circuit board (PCB) space and the design benefit of 0 erroneous news report, outspread besides the length of 100 meters cabled yarn to the standard. Integrated afore-mentioned characteristic, make its compare the traditional design that uses exterior PHY to have an advantage more.
As to its the software development tool is wrapped, provide framework of comprehensive sex software, cover from fundamental layer class, include TI real time operating system (the function of driver of TI-RTOS) , TI is abstract, among the applied layer class to diversification solution. This product can simplify join works, the development staff that lets just contacted wireless technology not must be developed any low rank driver can solid make the communication agreement such as Bluetooth and Wi-Fi.
If the graph is shown 4 times, simpleLink SDK is offerred can link the software framework with IoT representative program with integrated high in the clouds through augment of SDK plug-in unit, these call SimpleLink SDK plug-in unit but augment area piece be subordinate to belongs to SDK framework, can obtain through TI Resource Explorer.
Graph 4 SimpleLink SDK offers port of complete applied process process designing through SDK plug-in unit (service of API) , network and add function, can simplify considerably the development of core product function works.
Industrial IoT layout quickens intelligent gateway indispensable
IoT is lasting inside whole industry market amain gradual progress, manufacturer network of comprehensive deploy IoT, pass through be added newly or reforming means, deploy arrives in the building that have and builds, manufactory or the system of infrastructure of electrified wire netting that embody intelligent sensor network. Have the maturity of join solution, can help development staff develop operation the least in investment next introducing wireless with wired network, intelligent industry gateway can help development staff the amount of many augment network and brim node, reach active management in order to go to the lavatory through deploy of high in the clouds.
Afore-mentioned mentions SimpleLink MSP432E4 small controller, can realize the design of intelligent gateway, the data processing node and discharge of IoT management responsibility divide gateway, with reducing node complex degree, improve energy efficiency, reduce systematic cost considerably at the same time, and intelligent gateway still can increase node and the processing capacity that its use a program actually.
In the meantime, this product conduces to make gateway easily, unit reliable link reachs IoT, development staff also can be at ease the safety net that the design supports all sorts of terminal and port closes; to be able to fall power consumption to lowest, reduce systematic cost, the systematic function that will take the sources of energy seriously at the same time is the biggest change. Pass through afore-mentioned functions, development staff can join easily independent unit, wu Xuquan ministry is redesigned, make a stability and the industrial gateway that each other connects, to reliable link is provided between brim node and high in the clouds.