Search

CN-122002675-A - Intelligent controller for street lamp

CN122002675ACN 122002675 ACN122002675 ACN 122002675ACN-122002675-A

Abstract

The invention relates to the technical field of street lamp controllers, in particular to a street lamp intelligent controller, based on the 4GCat.1 technology, a main control core board integrates a main control system, an AC-DC isolating switch power supply, a real-time clock chip, a dimming circuit module, a leakage voltage/leakage current sampling circuit module and a triaxial acceleration detection circuit, heat-conducting glue is filled in a shell, and heat-conducting silicone grease is filled in the shell, so that compared with the traditional LoRa and NB-IoT, the street lamp intelligent controller has wider coverage range (a lamp post metal box can be penetrated) and higher speed (real-time waveform uploading is supported), and a double-backup SIM card and a dynamic heartbeat mechanism ensure that the single lamp online rate is more than or equal to 99.5%; the communication response time is less than 5s, the remote emergency control requirement (such as immediately turning on a lamp when an accident happens) is met, and the system is suitable for multi-scene lighting networks such as urban roads, parks and tunnels.

Inventors

  • PAN XIAOMING
  • ZHANG CHAO

Assignees

  • 常州嘉瑞电器有限公司

Dates

Publication Date
20260508
Application Date
20251203

Claims (7)

  1. 1. The intelligent controller for the street lamp is characterized by comprising a main control core board, a shell, a waterproof wire and a waterproof joint, wherein the main control core board integrates a main control system, an AC-DC isolating switch power supply, a real-time clock chip, a dimming circuit module, a leakage voltage/leakage current sampling circuit module and a triaxial acceleration detection circuit, and heat-conducting glue is filled in the shell in a potting mode and is filled with heat-conducting silicone grease.
  2. 2. The intelligent controller of the street lamp according to claim 1, wherein the main control system comprises a main control chip and a communication module, the main control chip is provided with a lua script programming environment and supports API call of SOCKET, MQTT, OTA, GPIO and other functions, the communication module is based on OpenCPU technology, is provided with a TCP/IP/UDP/HTTP/FTP protocol stack, supports an eSIM/plug-in dual-backup SIM card, is provided with a mobile patch card by default and is compatible with a customer supply card, supports Cat.1+PPP dialing protocol and a heartbeat mechanism with a dynamic interval of 30-300 seconds, and the communication response time with the street lamp control center is less than 5 seconds.
  3. 3. The intelligent controller of the street lamp according to claim 2, wherein the electric parameter sampling circuit adopts a double metering chip set, the metering precision is class0.5, the metering error is < +/-0.5%, the intelligent controller can collect single-phase voltage, current, active power, reactive power, power factor, forward/reverse active electric energy and reactive electric energy, and the intelligent controller has an idle current automatic elimination function.
  4. 4. The intelligent controller for the street lamp according to claim 3, wherein the three-axis acceleration detection circuit adopts a three-axis acceleration inclination sensor to support X/Y/Z three-axis acceleration measurement, the detection range is +/-2 g to +/-8 g, an adjustable low-pass filter is arranged in the intelligent controller, the intelligent controller is in a normal working state when being inclined within 10 degrees, and the intelligent controller automatically interrupts a power supply and triggers an alarm when being inclined by more than 30 degrees.
  5. 5. The intelligent controller of the street lamp according to claim 4, wherein the dimming circuit module is dual-mode output, has a resolution of 16 bits, supports constant current/constant voltage driving compatibility, has a dimming linearity error of <1%, and can realize 0% -100% stepless dimming; the output circuit adopts a relay, the service life of the relay contact is more than 10 ten thousand times, the output circuit is divided into 1 path (NJ-iot model 303) and 3 paths (NJ-iot model 304), and the 3 paths adopt a '3-in 3-out' independent parallel wiring mode.
  6. 6. The intelligent controller of the street lamp according to claim 5, wherein the intelligent controller has an off-grid autonomous operation function, and can realize switch control and energy-saving dimming according to preset parameters when communication is interrupted; And 16 types of fault codes (E001-E016) are arranged in the intelligent lamp, the intelligent leakage and the intelligent capacitor, the active alarm of lamp faults, leakage faults and capacitor faults is supported, the alarm parameters can be remotely adjusted through a control center, the false alarm rate of telemetry data is less than or equal to 0.1%, the month damage rate is less than or equal to 0.1%, and the average fault-free time is more than 3 ten thousand hours.
  7. 7. The intelligent controller for street lamps according to claim 6, further comprising a status indicator lamp set, wherein the status indicator lamp set comprises a power indicator lamp (red, light indicates normal, light indicates abnormal), a communication indicator lamp (green, light indicates successful networking, strobe indicates searching for a net, light indicates abnormal), and a branch indicator lamp (green, light indicates relay closed, light indicates relay open), 3 independent branch indicator lamps are provided for 3-way model (NJ-iot 304,304), and 1 branch indicator lamp is provided for 1-way model (NJ-iot 303,303).

Description

Intelligent controller for street lamp Technical Field The invention relates to the technical field of street lamp controllers, in particular to an intelligent street lamp controller. Background Along with the promotion of intelligent construction of urban illumination, the street lamp controller is used as core equipment, and the communication stability, the control precision, the safety protection and the intelligent level of the street lamp controller directly influence the operation and maintenance efficiency and the energy-saving effect of the illumination system. The existing street lamp controller has the common problems that the coverage range of a communication mode is limited, the communication mode is partially dependent on a low-power-consumption wide area network technology, the real-time online rate is low, the remote accurate control requirement cannot be met, the metering precision of electric parameters is insufficient, the dimming mode is single, the linearity is poor, the energy-saving effect is poor, the street lamp controller depends on network operation, the street lamp controller cannot work independently after communication is interrupted, and the operation and maintenance cost is high. In order to solve the technical defects, the invention designs an intelligent single-lamp controller integrating accurate metering, intelligent dimming, multi-dimensional fault detection, high protection level and off-grid operation functions based on the 4GCat.1 Internet of things technology, which is suitable for multi-scene lighting requirements of urban roads, parks, tunnels and the like, and improves the automation, the intellectualization and the safety and the reliability of a lighting system. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an intelligent controller for a street lamp. The intelligent controller for the street lamp comprises a main control core board, a shell, a waterproof wire and a waterproof joint, wherein the main control core board integrates a main control system, an AC-DC isolating switch power supply, a real-time clock chip, a dimming circuit module, a leakage voltage/leakage current sampling circuit module and a triaxial acceleration detection circuit, and heat conducting glue is filled in the shell in a filling mode and is filled with heat conducting silicone grease. Further, the improvement of the invention is that the main control system comprises a main control chip and a communication module, wherein the main control chip carries a lua script programming environment and supports API call of SOCKET, MQTT, OTA, GPIO and other functions, the communication module is based on OpenCPU technology, is provided with a TCP/IP/UDP/HTTP/FTP protocol stack, supports an eSIM/plug-in double-backup SIM card, is provided with a mobile patch card by default and is compatible with a customer card, supports Cat.1+PPP dialing protocol and a heartbeat mechanism with a dynamic interval of 30-300 seconds, and the communication response time with a street lamp control center is less than 5s. Furthermore, the invention is improved in that the electric parameter sampling circuit adopts a double metering chip set, the metering precision is class0.5, the metering error is < +/-0.5%, the single-phase voltage, current, active power, reactive power, power factor, forward/reverse active electric energy and reactive electric energy can be collected, and the automatic elimination function of no-load current is provided. Furthermore, the three-axis acceleration detection circuit adopts a three-axis acceleration inclination sensor to support X/Y/Z three-axis acceleration measurement, the detection range is +/-2 g to +/-8 g, an adjustable low-pass filter is arranged in the three-axis acceleration detection circuit, a normal working state is maintained within 10 degrees of inclination, and when the inclination exceeds 30 degrees, a power supply is automatically interrupted and an alarm is triggered. Furthermore, the invention is improved in that the dimming circuit module is in dual-mode output, has a resolution of 16 bits, supports constant current/constant voltage drive compatibility, has a dimming linearity error of <1%, and can realize 0% -100% stepless dimming; the output circuit adopts a relay, the service life of the relay contact is more than 10 ten thousand times, the output circuit is divided into 1 path (NJ-iot model 303) and 3 paths (NJ-iot model 304), and the 3 paths adopt a '3-in 3-out' independent parallel wiring mode. Furthermore, the invention has the improvement that the off-line automatic operation function is provided, and the on-off control and the energy-saving dimming can be realized according to preset parameters when the communication is interrupted; And 16 types of fault codes (E001-E016) are arranged in the intelligent lamp, the intelligent leakage and the intelligent capacitor, the active alarm of lamp faults, leakage faults and capacito