adolfbasil › 2023年03月

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Bluetooth mesh intelligent indoor lighting control network

2023年03月27日

Whole house intelligent lighting control is the most typical and practical design concept of home intelligence in recent years. Intelligent lighting control can meet the needs, finely set the brightness and color, and intelligently adjust the lighting when the environment changes. Therefore, compared with the traditional home light control, it has the characteristics of energy saving, convenience and comfort. Because of these advantages, more and more manufacturers have begun to invest in the development of intelligent lighting control systems. The use of Bluetooth mesh network technology can automatically and quickly perform Bluetooth pairing and establish network connections, and accelerate the deployment of smart home ecosystems.

Bluetooth Mesh Network Introduction
mesh topology, multi-hop network

Bluetooth Mesh Networking is a network topology of Bluetooth Low Energy BLE used to establish many-to-many device communication. It allows the creation of large networks supporting thousands of Bluetooth mesh devices communicating with each other.

Introduction to Module Networking

The E104-BT10 Bluetooth mesh ad hoc network module independently developed by Ebyte supports the sig mesh V1.0 standard and the sig standard HSL model. The mobile APP can proxy any node into the network, realize remote control of the mesh network, and realize the application scenario of light control with one key.


Implementation steps of smart light control


A), initialize node 1, power on node 1 serial port to send 02 c0 15, receive 03 43 15 and the initialization is successful.

B) Node 1 accesses the network, sends 02 c0 09 through the control module E104-BT10-G and waits for a few seconds, and receives 0B 40 09 CA F7 EF FB F9 EC 00 02 03, indicating that the network access is successful.

C), Node 2 accesses the network, sends 02 c0 09 through the control module E104-BT10-G and waits for a few seconds, and receives 0B 40 09 CA F7 EF FB F9 EC 00 05 03 to successfully access the network, and the same is true for other nodes to access the network. Similar to the return code, the third and second bytes from the bottom represent the network access address.

Node switch light control, E104-BT10-G or mobile phone as proxy node control. For example, E104-BT10-G sends command 09 c1 00 02 82 02 01 00 00 00, returns 08 41 00 02 00 01 82 04 01 to control node 1 to turn on the light, 09 c1 00 02 82 02 00 00 00 00, returns 08 41 00 05 00 01 82 04 00 can control node 1 to turn off the lights.  


Posted by adolfbasil at 18:56Comments(0)SOC module

What is the future development potential of antenna

2023年03月20日

Antenna communication is a very important part of wireless communication technology, and its development potential is very large. Here are a few areas:

Development of 5G network: With the development of 5G network, more antennas will be installed, because 5G network requires more antennas to support high-speed, low-latency communication. This will further drive the demand and development of antennas. serial port ethernet converter Development of the Internet of Things: Many devices in the Internet of Things require antennas to communicate. With the development of the Internet of Things, more and more devices will need antennas, which will further promote the demand and development of antennas. Development of new antenna technologies: With the development of new materials and manufacturing technologies, new antenna technologies are emerging, such as multi-antenna systems, millimeter wave antennas, electron beam antennas, etc. These technologies are expected to bring better performance and wider application. The development of satellite communication: Satellite communication has a very large demand for antennas. With the development of satellite communication, more antennas will be used in the field of satellite communication.

In short, antenna communication has broad application prospects, and its future development potential is very large, and it is a very important part of the wireless communication field.  


Posted by adolfbasil at 18:43Comments(0)industrial iot gateway

Oil exploration wells are scattered and numerous in number

2023年03月13日

Oil exploration wells are scattered and numerous in number, and abnormal phenomena need to be dealt with in time. Manual inspection takes a long time and has poor timeliness; wired transmission has many shortcomings such as cumbersome wiring, high cost, and no mobile network coverage on site.

Now there is a need for a wireless transmission technology that supports a large number of access, wide coverage, efficient data transmission, MIMO Technology and has a data center that can aggregate data for data collection, and then connect the network at the center to synchronize the data to the platform server for related data push and display .
working principle
A dormant terminal device is installed at each wellhead and connected to the three-axis sensor at the wellhead as an alarm node to monitor the status of each wellhead. And arrange the router (coordinator) terminal equipment and gateway equipment in the appropriate place to complete the construction of the entire data network.

(1) When the three-axis sensor with the wellhead detects that the wellhead state is abnormal, the three-axis sensor will send the abnormal data to the corresponding dormant terminal equipment;


(2) The dormant terminal will wake itself up at the first time and report the received abnormal data together with the node ID and latitude and longitude coordinates of the wellhead;


(3) The data is received and forwarded to the gateway device via router devices at all levels;


(4) After receiving the data, the gateway device transmits the data to the platform server through the 4G network, and the platform server performs alarm push and data presentation.

System composition
The entire data network is composed of dormant terminal equipment, router (coordinator) terminal equipment, and gateway equipment.  


Posted by adolfbasil at 14:46Comments(0)industrial iot gateway

The challenges posed by the current Internet of Things

2023年03月13日

The challenges posed by the current Internet of Things system have given birth to a new network structure system. Over the past many years, a large number of standardized frameworks have been designed to solve many challenges and problems faced by the Internet of Things at a large scale.
At present, these frameworks all have the same basic requirement, which is to support the functional requirements of data, processes and terminal devices for execution. Serial Communication
The most famous of these are the frameworks defined by oneM2M and the Internet of Things World Forum (IOTWF). Below I will give an in-depth introduction to the two frameworks.
oneM2M IoT standard framework. In the process of standardizing machine-to-machine communication, the European Telecommunications Standards Institute (ETSI) created an association of technical application committees on M2M in 2008. The association was created to create a standard framework to accelerate people's M2M applications and M2M devices. Later, due to the worldwide recognition of the framework, the scope was extended to the field of Internet of Things.
After the M2M Technical Committee established the framework, other organizations also began to lay out the framework of the Internet of Things. In this context, Wi-Fi HaLow it is indispensable to specify a common M2M standard. After realizing the needs of the market, in 2012, ETSI and its member institutions launched a global initiative to unify the M2M framework. This initiative unifies the global M2M standard, accelerates the development of the Internet of Things Communication efficiency in communication systems and the Internet of Things. The purpose of the initiative is to create a common service layer, which can be directly nested into the device facilities, enabling service communication between devices. These include power grid interconnection, automotive hardware interoperability, industrial equipment health monitoring, intelligent measurement and other equipment interoperability services.
The OneM2M architecture roughly divides the functions of the Internet of Things into three architectures: application layer, service layer and network layer. Although the architecture looks very simple in the literal sense, its performance is very diverse. It not only allows each device to interoperate with each other through calling the IT networking interface, but also supports a large number of new and old IoT devices. technology.  


Posted by adolfbasil at 14:26Comments(0)industrial iot gateway