The English abbreviation of Remote Terminal Unit is RTU.A special computer measurement and control unit with modular structure designed for long communication distance and harsh industrial site environment. It connects the terminal detection instrument and actuator with the main computer of the remote control center, and has remote data acquisition, Control and communication function, can receive ···

Surge protector, also called lightning protector, is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. When a spike current or voltage is suddenly generated in the electrical circuit or communication circuit due to external interference, the surge protector can conduct and shunt in a very short time, so as to prevent the su···

GPRS DTU is a wireless data terminal with Internet of Things technology. It uses public operator Internet GPRS Internet (called G network) to show customers the role of wireless network for long-distance data transmission. It selects high-performance industrial 8/16/32-bit communication CPU and Industrial wireless module, with embedded real-time operating system as the support point service platfo···

Serial communication is a very common serial communication method between devices. Because it is simple and convenient, most electronic devices support this communication method. Electronic engineers often use this communication method to output debugging information when debugging devices.

Application of RS485 to EthernetIn the Internet of Things industry, there are many scenarios in which industrial serial port RS485 is used. So what are the applications and solutions of RS485 serial port to Ethernet, and what is the key technology of RS485 to Ethernet.

The wireless communication module enables all kinds of Internet of Things terminal equipment to have the ability to transmit information on the Internet, and is the information portal for all kinds of intelligent terminals to access the Internet of Things.

The birth of NB-IoT technology and its inherent low power consumption and deep coverage properties just make up for many shortcomings of traditional communication technology, which can generate connections for positioning asset tracking whether it is in indoor hidden areas or outdoor areas.

The birth of NB-IoT technology perfectly solves a series of problems: the user capacity of the communication base station is 10 times that of GPRS, ultra-low power consumption, normal communication and standby current is mA and uA level, module standby time can be up to ten years , There is no need to replace the battery from birth to slaughter, reducing the workload of workers.

With the popularity of the smart home industry in recent years, smart locks appear more and more frequently in life. At present, smart locks use non-mechanical keys as user identification technology. The mainstream technologies include proximity cards, fingerprint recognition, and passwords. Recognition, facial recognition, etc., greatly improve the security of the access control, but the premise ···

How to eliminate these hidden safety hazards has become a top priority. Using NB-IoT to locate and monitor the manhole cover can grasp the status information of the manhole cover in time, and use the NB-IoT network to send an alarm to the server to notify the manager when the manhole cover moves or is damaged, so as to maximize The degree of avoidance of injury and loss.