Single lamp controller

Abstract

The invention provides a single lamp controller. A power acquisition module detects real-time voltage and current data of a street lamp driving power supply and transmits the data to a processing unit; the processing unit stores the real-time data, when the operation condition of a single lamp changes, the processing unit reads a data rate and transmission power, the corresponding values are set in a register of a LoRa communication module, and the data are transmitted to a LoRaWAN gateway through the LoRa communication module; the LoRaWAN gateway receives the data and judges the signal intensity, a command of adaptively adjusting the data rate and the transmission power is generated and sent to the processing unit, and after receiving the command, the processing unit adjusts the data rateand the transmission power; and when the processing unit performs data communication with the LoRaWAN gateway through the LoRa communication module, the data rate and the transmission power of the LoRa communication module can be adjusted adaptively, and the power consumption of the system is reduced to the maximum degree.

Description

technical field [0001] The invention relates to the technical field of street lamp lighting, in particular to a single lamp controller. Background technique [0002] Street lamps are an important infrastructure for urban construction. At present, the intelligent single lamp control system monitors and adjusts each lamp in real time through a single lamp controller. A good communication network is the prerequisite to ensure the normal operation of the system. The current single-light control system mainly uses power carrier (PLC), ZigBee technology, and NB-IOT technology for network communication. Power carrier communication is to transmit signals through power lines, and can realize the control of street lamps without additional wiring. Generally, power carrier single lamp controllers are often used on municipal street lights. This communication method has the following disadvantages: distribution transformers are sensitive to power carrier signals Barrier effect, in practi...

AI Technical Summary

Problems solved by technology

Power carrier communication is to transmit signals through power lines, and can realize the control of street lamps without additional wiring. Generally, power carrier single lamp controllers are often used on municipal street lights. This communication method has the following disadvantages: distribution transformers are sensitive to power carrier signals Barrier effect, in practical applications, when the power line is empty, the point-to-point carrier signal can be transmitted to several kilometers, but when the load on the power line is heavy, it can only transmit tens of meters

NB-IOT technology is an emerging technology that can be widely used around the world. It is still in the trial operation stage at this stage. The industrial chain is immature and the cost of use is high.

[0003] In addition, powering on multiple single lamps at the same time will cause nodes to connect to the network at the same time, causing data congestion. It is not practical for street lamps, which require high real-time performance.

The existing single lamp control system cannot solve the problem of data congestion by using the above three communication methods, and cannot meet the requirements in the complex environment and high real-time requirements

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