Things block chain network in the manufacturing supply chain, there are still many challenges

Application block chain of currency far beyond encryption. Internet of Things (IoT) driven by an electronic sensor network is deployed in the next block chain technology platform not yet developed, the technology is expected to improve operational efficiency in many areas, including supply chain, including manufacturing. The key challenge of large-scale use of block chain technology is to fully quantify the costs and risks of deployment and ensure their safety. Block chain was originally adopted in the financial technology companies, because this area has a shorter product cycles and qualified unsafe. Things networks can help address these barriers, and the block chain technology expanded to other areas requiring higher reliability. Certification process automation in a block chain-driven supply chain, real-time sensor smart things contracts (that can be triggered by a block chain transaction from executing the script) the proven workflow automation possible. Smart sensor node things contract allows bypassing the intermediate layer (i.e., a central authentication server). To verify the activity on a network , sensor nodes communicate only with their nearest neighbors, so you can quickly verify the new transaction or activity without having to connect to the central server computing cloud or further private network. Thus, things block chains accelerates data exchange network manufacturing supply chain, thereby improving the operation efficiency and reduce the vulnerability of the system. Energy and operational efficiency and energy security challenges and trade-offs between cost of network maintenance concern. Although the block chain of things can reduce the number of bottlenecks in the supply chain, but each sensor ongoing validation of transactions and update the block chain ledger distributed copies of the required energy costs are not a common indicator. Frequent updating block chain also reduces the average life of the sensor, thereby increasing the frequency and cost of replacement parts. Things to safety block chain networks do not quite understand. With the public encryption currency network (most mining capabilities from any single user control) different private block chain to verify the excavation or pool may be limited to nodes in the network. Intruder (have computing power on a private network of more than 50% of the things node) is likely to hijack the entire private block chain. By the hash value of the hash capability can speed faster than the rest of the network Control Engineering Copyright , the intruder can decide which new transaction will beVerify and add to the distributed ledger. This is often referred to as “51% of the attack.” May 2018 CONTROL ENGINEERING China Copyright of gold Bitcoin network has been such an attack. Attack on the 51% of things sensor networks could lead to supply chain delays, manufacturing defects, service disruptions and even threats to human security. Scalability standard implementation platform by standard techniques, such as those currently under development by the IEEE standard can provide a framework for building scalable and secure things block chain internet. Such standards would ensure that things block chain of devices from different manufacturers interoperability can achieve cost reduction and energy Control Engineering Copyright , while maximizing the safety and efficiency of this the same goal. Energy deal with deployment and security challenges of Things block chain network brought in the manufacturing supply chain, will enable us to better quantify the costs and risks. This will inevitably pave the way for future deployments in other areas of medical, smart grid, shipping and transportation.

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