HDAC utilizes the Internet of Things (IoT) network in conjunction with Private Blockchain to achieve more secure trust based transmission, whether it is information exchange between machines or value transfer between people. Based on the ideal blueprint for the practical use of private chains, HDAC has developed platforms and transmission units like Hdac * T to achieve M2M contract fulfillment and information transmission on the IoT, creating a more user-friendly and reliable environment, A faster and more secure information transmission system....