In February 2014, CSR launched a new Bluetooth Smart solution, CSR Mesh. It was because of this disruptive technology that CSR was Qualcomm and was acquired at a high price of US$2.5 billion. . Qualcomm is arranging the IoT market in full swing. This is a well-known thing in the industry. In the near future, it has been a big fan of the AllSeen Alliance, trying to dominate the smart home market with the AllJoyn architecture. So, how much power can the acquisition of CSR companies bring to Qualcomm's ambitions? What are the outstanding features of CSR Mesh's technology called home automation? At the Munich exhibition just past, the reporter was fortunate to have a face-to-face exchange with CSR's senior product marketing manager David James. The following is the highlight of the entire interview. David James, Senior Product Marketing Manager, CSR What is CSR Mesh technology? According to DJ, CSR Mesh technology is mainly integrated into a single chip by using Bluetooth configuration and control protocol. With star network and relay technology, each network can connect more than 65,000 nodes, and network and network can also achieve mutual Even the ultimate home automation can be built by interconnecting or directly manipulating countless Bluetooth Smart devices from the same phone, tablet or PC. In terms of power consumption, CSR Mesh consumes only a fraction of the power of Zigbee. It can transmit information between nodes and nodes through the information transmission between nodes and nodes to control the function of the target device. There is no need for a gateway in the traditional sense, so we can use the app on the phone or tablet to control it, which is very convenient to operate. The composition of CSRMesh technology How to ensure information security: interlocking encryption function When it comes to the performance of CSRMesh technology in terms of security, Mr. DJ is very professional in explaining. He pointed out that in such a home network composed of CSRMesh, all data is encrypted using the AES algorithm, and the data transmission is also based on the classic nested key exchange & encryption protocol Diffee-Hellman-Merkle. . Whenever a new device wants to access the network, it needs to rely on the 128-bit UUID (Universal Unique Identification Number) owned by the device to facilitate the identification of the mobile APP. Then it must be authenticated by the 64-bit code to connect to the mobile phone. The device can obtain a unique networking key for communication. For example, when we want to connect a smart light bulb to the home network, we must first use a specific mobile phone APP to scan the two-dimensional code of the light bulb. After identification and authentication, the APP will assign a networking key to it. This controls its various functions, including brightness adjustment, switching, and more. The process of adding a smart light bulb to the CSRMesh network Nantong Boxin Electronic Technology Co., Ltd. , https://www.ntbosen.com
