CN214544884U

CN214544884U - Intelligent lighting controller

Info

Publication number: CN214544884U
Application number: CN202022876524.0U
Authority: CN
Inventors: 蔡建华; 倪如汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-15
Filing date: 2020-12-02
Publication date: 2021-10-29
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses an intelligent lighting controller, which relates to the technical field of lighting controllers and comprises a MCU module, a DALI interface module, a LED indicator lamp and a button, a USB interface module, a RTC clock management module, a FLASH storage module and a power line module, and the utility model relates to an intelligent lighting controller which accords with a main controller of DALI 2.0 multi-host communication standard, thereby ensuring good interoperability and compatibility of a lighting system; the DALI bus power supply is arranged in the DALI master controller, so that the abnormity monitoring and protection of the bus are realized. The utility model can set the parameters of the whole DALI system in an online state; and the lighting control effect can be automatically and efficiently operated in an off-line state, so that intelligent management and green lighting are realized, and the intelligent lighting control system is very suitable for being applied to actual lighting engineering projects.

Description

Intelligent lighting controller

Technical Field

The utility model relates to a lighting control ware technical field especially relates to an intelligent lighting controller.

Background

The digital lighting technology has the characteristics of easiness in control and maintenance and the like, meets the requirements of people on energy conservation, emission reduction and intelligent management, and is widely valued in the fields of industrial lighting and commercial lighting. The development trend of intelligent illumination is to construct a lighting system with unified standard, stability, reliability, interconnection and intercommunication. DALI is widely used in lighting engineering as a standard communication interface and protocol to conform to the logarithmic dimming curve and gradual change adjustment effect of human visual effect and rich dimming instruction set.

However, the conventional DALI lighting system (DALI 1.0 system) only has a master controller and a lighting device, the system works in a single master-slave mode (single-master), and the master controller controls the dimming effect of the lighting device in a single direction. In order to improve the automation of the lighting system and reduce the manual operation links, the input device is added to the main controller mainly in the market through the following two modes:

the first type is that sensors such as infrared sensors are directly integrated on a main controller, and the expansibility of the system is low and the flexibility is poor;

the second type is to access other buses, such as a ZIGBEE-DALI gateway, through a protocol gateway, in such a way that an input device is placed in the other buses, not only is the operation complicated, but also unavoidable compatibility problems exist between different systems, so that the reliability of the DALI system is reduced.

The DALI protocol is established based on a master-slave mode of control, and currently, the DALI standard is increasingly adopted by intelligent lighting control systems. However, the DALI standard has a specific level standard, so that a specific DALI interface circuit for level conversion is inevitably present in the DALI system to realize the communication between the upper computer and the lower ballast singlechip and ensure the realization of the communication. At present, a DALI bus interface circuit adopts a voltage division mode to judge the level of a bus, and when disturbance occurs on critical voltage, the level of the bus interface deviates, so that the stability and reliability of a system are affected.

In order to ensure good compatibility of the DALI system, the DALI 2.0 technology defines the standard of the input device, and adds a standard communication mode between the input device and the master controller. The input device may actively transmit data and the DALI 2.0 system operates in a multi-master communication mode (multi-master).

While the bandwidth on the DALI bus is limited, higher demands are also placed on the master as the device types and communication data of DALI systems increase. How to improve the system reliability and give full play to the function of input equipment, so that the main controller processes useful data and finally achieves the effect of efficient autonomous management is a difficult problem to overcome in practical engineering projects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an intelligent lighting controller, which accords with a main controller of DALI 2.0 multi-host communication standard, thereby ensuring good interoperability and compatibility of a lighting system; the DALI bus power supply is arranged in the DALI master controller, so that the abnormity monitoring and protection of the bus are realized.

The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:

an intelligent lighting controller comprises an MCU module, a DALI interface module, an LED indicator lamp and a button, a USB interface module, an RTC clock management module, a FLASH storage module and a power line module, wherein the DALI interface module, the LED indicator lamp and the button, the USB interface module, the RTC clock management module, the FLASH storage module and the power line module are respectively connected with corresponding ports of the MCU module;

the DALI interface module comprises a VCC voltage end, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a first diode, a second diode, a third diode, a first voltage stabilizing diode, a first triode, a second triode, a third triode, an LM317 chip, a voltage stabilizing control chip, a first capacitor, a second capacitor and a third capacitor;

the voltage stabilizing control circuit comprises a voltage stabilizing control chip, a first resistor, a second resistor, a first capacitor, a second capacitor and a VCC voltage end, wherein the VCC voltage end is respectively connected with one end of the first capacitor, the Vin end of the voltage stabilizing control chip and the cathode of the first diode, the anode of the first diode is respectively connected with the V0 end of the voltage stabilizing control chip, the cathode of the second diode and the DA + end, one end of the first resistor is respectively connected with one end of the second resistor, the ADJ end of the voltage stabilizing control chip, the anode of the second diode and one end of the second capacitor, and the other end of the second resistor is respectively connected with the other end of the second capacitor, the other end of the first capacitor and the DA-end and is grounded;

the DA + end is respectively connected with a grid electrode of a third triode, one end of a seventh resistor and a cathode of a voltage stabilizing diode, the anode of the voltage stabilizing diode is respectively connected with one end of a fifth resistor and one end of a sixth resistor, the other end of the fifth resistor is respectively connected with the cathode of the third diode, one end of a fourth resistor and a 5V voltage end through a first triode, the anode of the third diode is respectively connected with a DALI _ RX end of an MCU and one end of a third resistor, the other end of the third resistor is connected with a 3.3V voltage end, the grid electrode of the third triode is respectively connected with one end of a tenth resistor and a collector electrode of a second triode through an eleventh resistor, the other end of the tenth resistor is connected with a 5V voltage end, the base electrode of the second triode is connected with one end of an eighth resistor and the DALI _ TX end of the MCU through a ninth resistor, the other end of the eighth resistor is connected with a 3.3V voltage end, and the other end of the fourth resistor, The other end of the sixth resistor, the emitter of the second triode at the other end of the seventh resistor and the DA-end are connected with each other and grounded.

As the utility model relates to a further preferred scheme of intelligence lighting controller, the chip model of MCU module be STM32F 429.

As a further preferred scheme of the intelligent lighting controller of the present invention, the chip model of the FLASH memory module is SST25VF 020B.

As a further preferred scheme of the utility model relates to an intelligence lighting controller, voltage stabilizing control chip's chip model is LM 317.

The utility model adopts the above technical scheme to compare with prior art, have following technological effect:

1. the utility model relates to an intelligent lighting controller, which conforms to a master controller of DALI 2.0 multi-host communication standard, thereby ensuring good interoperability and compatibility of a lighting system; the DALI bus power supply is arranged in the DALI master controller, so that the abnormity monitoring and protection of the bus are realized.

2. The utility model can set the parameters of the whole DALI system in an online state; the lighting control effect can be automatically and efficiently operated in an off-line state, intelligent management and green lighting are realized, and the intelligent lighting control system is very suitable for being applied to actual lighting engineering projects;

the utility model discloses DALI lighting bus's signalling and receiving circuit adopt LM 317's steady voltage control chip, make 20V change 17V bus voltage's DC-DC transform circuit, provide output regulated voltage for bus interface.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent lighting controller based on DALI 2.0 of the present invention;

fig. 2 is a circuit diagram of the DALI bus interface of the present invention.

Detailed Description

The technical scheme of the utility model is further explained in detail with the attached drawings as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An intelligent lighting controller comprises an MCU module, a DALI interface module, an LED indicator lamp and a button, a USB interface module, an RTC clock management module, a FLASH storage module and a power line module, wherein the DALI interface module, the LED indicator lamp and the button, the USB interface module, the RTC clock management module, the FLASH storage module and the power line module are respectively connected with corresponding ports of the MCU module.

The chip model of the MCU module is STM32F 429.

The chip model of the FLASH storage module is SST25VF 020B.

The chip model of the voltage stabilization control chip is LM 317.

The STM32F429 is used as a main control MCU and is responsible for USB communication with a PC terminal, DALI protocol coding and decoding and bus interface control; and designing an AC-DC main power supply to realize the conversion between AC commercial power and 20V direct-current voltage. And respectively carrying out DC-DC conversion to obtain a bus power supply voltage of 17V and a 5V power supply voltage for an MCU peripheral circuit, and providing a working voltage for the MCU by adopting a 5V to 3.3V linear voltage stabilizing circuit.

An external Flash chip SST25VF020B is used for memory management, and parameters of the lighting equipment and configuration data of lighting effects are stored; the chip PCF2129 is used for RTC clock management, so that the master controller can realize accurate time operation including action delay, working day recording, uninterrupted recording of time information during power failure and the like.

In order to facilitate the user to set parameters of the lighting equipment and the lighting effect, the main controller is matched with PC operation software. The connection mode of the PC terminal and the main controller is a USB cable. The master controller has the following two working states:

(1) the main controller is in an online operation state when the cable is connected. Under the online operation, the DALI short address code and the configuration parameters are automatically distributed to the lighting device and the input equipment on the software, and the lighting effect required by the user can be set.

(2) The master controller enters an offline operating state when the cable is removed. And in an off-line state, the master controller autonomously analyzes and processes the event report of the input equipment and automatically controls the action of the lighting device.

A voltage stabilizing control chip of the LM317 is adopted to manufacture a DC-DC conversion circuit for converting 20V to 17V bus voltage and provide output voltage for a bus interface. And designing a DALI signal transmitting and receiving line of the MCU on the bus interface line.

(1) Receiving state: to avoid the MCU erroneously considering the bus as high if the bus level is below 10V but above 4.5V, ZD1 may use an 8.2V regulator. When the bus is in a high-level state, the gate of the Q1 tube obtains a driving voltage, at the moment, the D3 is cut off, and the DALI _ RX pin of the MCU obtains a voltage of 3.3V; similarly, when the bus is lower than 4.5V, the Q1 transistor is turned off, the D3 is turned on, and the DALI _ RX pin level of the MCU is close to the forward conduction voltage drop of D3. By recognizing the voltage signal change, the MCU receives data from other devices.

(2) And (3) sending state: when the DALI _ TX pin of the MCU outputs a high-level driving signal to the triode, Q2 is conducted, so that the gate voltage of a Q3 tube is pulled down to cut off Q3, and the DALI interface voltage is the high level of an output bus; similarly, when the DALI _ TX pin outputs a low level to the outside, Q2 is turned off, Q3 is turned on, and the bus level is pulled down to 0V. And the MCU sends a data frame to the bus by switching the high-low level driving signals.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention. While the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An intelligent lighting controller, characterized in that: the system comprises an MCU module, a DALI interface module, an LED indicator lamp and a button, a USB interface module, an RTC clock management module, a FLASH storage module and a power line module, wherein the DALI interface module, the LED indicator lamp and the button, the USB interface module, the RTC clock management module, the FLASH storage module and the power line module are respectively connected with corresponding ports of the MCU module;

the DA + end is respectively connected with a grid electrode of a third triode, one end of a seventh resistor and a cathode of a voltage stabilizing diode, the anode of the voltage stabilizing diode is respectively connected with one end of a fifth resistor and one end of a sixth resistor, the other end of the fifth resistor is respectively connected with the cathode of the third diode, one end of a fourth resistor and a 5V voltage end through a first triode, the anode of the third diode is respectively connected with a DALI _ RX end of an MCU and one end of a third resistor, the other end of the third resistor is connected with a 3.3V voltage end, the grid electrode of the third triode is respectively connected with one end of a tenth resistor and a collector electrode of a second triode through an eleventh resistor, the other end of the tenth resistor is connected with a 5V voltage end, the base electrode of the second triode is connected with one end of an eighth resistor and the DALI _ TX end of the MCU through a ninth resistor, the other end of the eighth resistor is connected with a 3.3V voltage end, the other end of the fourth resistor, the other end of the sixth resistor and the cathode of the third resistor, And the emitter and the DA-end of the second triode at the other end of the seventh resistor are connected with each other and grounded.

2. The intelligent lighting controller of claim 1, wherein: the chip model of the MCU module is STM32F 429.

3. The intelligent lighting controller of claim 1, wherein: the chip model of the FLASH storage module is SST25VF 020B.

4. The intelligent lighting controller of claim 1, wherein: the chip model of the voltage stabilization control chip is LM 317.