CN215420865U

CN215420865U - Intelligent lighting gateway module

Info

Publication number: CN215420865U
Application number: CN202121964907.1U
Authority: CN
Inventors: 于晨东; 刘辉; 王全红
Original assignee: Jiangsu Zhengtai Taijiesai Intelligent Technology Co ltd
Current assignee: Jiangsu Zhengtai Taijiesai Intelligent Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-04
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses an intelligent lighting gateway module, which belongs to the technical field of intelligent home furnishing and comprises an MCU (microprogrammed control unit), a 485 communication unit, a Pyxos FT communication unit and a DALI communication unit, wherein the 485 communication unit is used for receiving 485 signals and is connected with the MCU unit; on one hand, the device has a field communication bus interface, and the communication bus link has a power supply function, so that PYXOS and DALI protocols can be mutually converted, and the real-time performance of the control system is greatly improved; on the other hand has intelligent lighting gateway module's control function and communication function, through using Pyxos FT communication unit and coupling isolation unit for can transmit power signal and can transmit communication signal on 2 core bus terminals, simplify the on-the-spot installation wiring degree of difficulty, improve the installation effectiveness and reduce construction cost, greatly reduced the degree of difficulty of on-the-spot debugging.

Description

Intelligent lighting gateway module

Technical Field

The utility model belongs to the technical field of intelligent home furnishing, and particularly relates to lamplight brightness adjusting and controlling equipment in an intelligent lighting and intelligent home furnishing system.

Background

At present, the DALI dimming system is widely applied in life, but there is no gateway converting PYXOS and DALI protocols into each other in the market, and debugging needs to be performed by means of a third-party debugging tool, so that inconvenience is brought to debugging work of field debugging personnel in the debugging process.

Disclosure of Invention

The utility model aims to provide an intelligent lighting gateway module to solve the problem that PYXOS and DALI protocols cannot be converted mutually.

In order to achieve the purpose, the utility model provides the following technical scheme: an intelligent lighting gateway module comprises an MCU (microprogrammed control unit), a 485 communication unit, a Pyxos FT (Power Take off) communication unit and a DALI communication unit, wherein the 485 communication unit receives 485 signals and is connected with the MCU unit, the Pyxos FT communication unit receives field bus signals and is connected with the MCU unit, and the DALI communication unit receives signals sent by the MCU unit and sends DALI signals to a DALI bus.

Preferably, the gateway module further includes a power management unit for converting the power signal in the fieldbus and outputting the converted power signal to the system control circuit.

Preferably, the power management unit includes a rectifier bridge for rectifying a current bridge stack on the fieldbus link into direct current, a step-down DC chip for stepping down the rectified direct current, and a regulated DC chip for converting the stepped-down current into a set voltage and supplying the set voltage to the MCU microcontroller.

Preferably, the gateway module further comprises a coupling isolation unit for isolating the power supply signal from the communication signal in the fieldbus.

Preferably, the coupling isolation unit includes a common mode inductor for isolating the fieldbus communication signal from the power supply signal.

Preferably, the 485 communication unit comprises a 485 communication chip.

Preferably, the Pyxos FT communication unit includes a Pyxos FT chip embedded with a Pyxos FT protocol, and the Pyxos FT chip performs interactive transmission with the MCU microcontroller through the SPI bus.

Preferably, the Pyxos FT chip is connected to a common mode inductor via a fieldbus.

Preferably, the Pyxos FT communication unit, the DALI communication unit, the MCU microcontroller, the 485 communication unit, and the power management unit are welded to a first circuit board, the first circuit board is fixed to a bottom case, the bottom case is clamped and mounted to the upper case through a receiving slot, a second circuit board is fixed to the upper case, an LED indication unit is welded to the second circuit board, and a key hole and an indication lamp hole are formed in the upper case.

The utility model has the technical effects and advantages that: on one hand, the intelligent lighting gateway module has a field communication bus interface, a communication bus link has a power supply function, PYXOS and DALI protocols can be mutually converted, the field bus communication rate can reach 312.5KBPS, and the real-time performance of a control system is greatly improved;

on the other hand, the intelligent lighting gateway module has a control function and a communication function, the Pyxos FT communication unit and the coupling isolation unit are used, so that a power signal and a communication signal can be transmitted on a 2-core bus terminal of the intelligent lighting gateway module, the 2-core bus wiring terminal is not polarized, the field installation wiring difficulty is simplified, the installation efficiency is improved, the construction cost is reduced, mutual forwarding between a PYXOS protocol and a DALI protocol is realized, a 485 interface is used for debugging in the debugging process, and the field debugging difficulty is greatly reduced.

Drawings

FIG. 1 is a schematic view of the frame structure of the present invention;

FIG. 2 is a schematic diagram of a frame structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the bottom case and the upper case of the present invention.

In the figure: 1. an MCU microcontroller; 2. a DALI communication unit; 3. a Pyxos FT communication unit; 4. 485 communication unit; 5. a coupling isolation unit; 6. a power management unit; 61. a rectifier bridge; 62. a step-down DC chip; 63. a voltage-stabilizing DC chip; 71. a display lamp hole; 72. embedding grooves; 73. a key hole; 74. an indicator light hole; 75. and a terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides an intelligent lighting gateway module as shown in fig. 1-3, which comprises an MCU (microprogrammed control unit) 1, a 485 communication unit 4, a Pyxos FT communication unit 3 and a DALI communication unit 2, wherein the 485 communication unit 4 is used for receiving 485 signals and is connected with the MCU 1 unit, the Pyxos FT communication unit 3 is used for receiving field bus signals and is connected with the MCU 1 unit, and the DALI communication unit 2 is used for receiving signals sent by the MCU 1 and sending DALI signals to a DALI bus; the DALI communication unit 2 receives a control signal of the 485 or PYXOS interface, analyzes and sends a final instruction to the DALI bus to realize the control of DALI dimming, and replies a corresponding instruction to change the average current flowing through the load of the lighting lamp so as to finish the brightness adjustment control function of the lighting circuit; meanwhile, the device also carries out information interaction processing with a Pyxos FT communication unit to complete the setting of system function parameters and the transmission of dimming output signals in a field bus;

the DALI communication unit 2 comprises an optical coupler which correspondingly converts the DALI signal into low level or high level by sending the level of the receiving end signal; used for converting the signal sent by the MCU 1 into a DALI signal, sending the DALI signal to a DALI bus to realize the forwarding of information,

the Pyxos FT communication unit 3 comprises a Pyxos FT chip embedded with a Pyxos FT protocol, the Pyxos FT chip is interactively transmitted with the MCU microcontroller 1 through an SPI bus, the Pyxos FT chip is connected with a common-mode inductor through a field bus, and is used for processing field communication bus signals and performing bidirectional interaction of functional parameters with the MCU microcontroller 1;

the 485 communication unit 4 comprises a 485 communication chip and is used for processing 485 interface signals and performing bidirectional interaction of functional parameters with the MCU 1;

the gateway module further comprises a power management unit 6 for converting a power signal in the field bus and outputting the converted power signal to a system control circuit, wherein the power management unit 6 is used for converting the power signal isolated from the field bus and outputting a power used by the system control circuit, and comprises a rectifier bridge 61 for rectifying a current bridge stack on a field bus link into direct current, a voltage reduction DC chip 62 for reducing the rectified direct current, and a voltage stabilization DC chip 63 for converting the reduced current into a set voltage and supplying the set voltage to the MCU microcontroller 1;

the gateway module further comprises a coupling isolation unit 5 for isolating a power supply signal from a communication signal in the fieldbus, wherein the coupling isolation unit 5 comprises a common-mode inductor;

the gateway module comprises a bottom shell and an upper shell, wherein a display lamp hole 71 and a wiring terminal 75 are arranged on the outer surface of the upper shell, scarf joint grooves 76 are formed in two sides of the upper shell, the bottom shell and the upper shell are clamped and installed through the scarf joint grooves, a first circuit board and a second circuit board are respectively fixed on the bottom shell and the upper shell, a Pyxos FT communication unit, a DALI communication unit, an MCU microcontroller, a 485 communication unit and a power management unit are welded on the first circuit board, and the first circuit board, the DALI communication unit, the MCU microcontroller, the 485 communication unit and the power management unit are fixed on the upper shell through clamping grooves reserved on the bottom shell;

the second circuit board is fixed on the upper shell through screw holes and comprises an LED indicating unit, the upper shell is provided with a key hole 73 and an indicating lamp hole 74, and the indicating lamp can transmit light through the key holes or can transmit the light through the holes to press keys;

the drain pan is opened there is the scarf joint groove, can install the circuit board card on the drain pan, and the circuit board card is according to fixed size and thickness preparation, just does not need the screw fixation, has the screw hole in going up the casing, can pass through the screw, fixes the second circuit board at last casing, connects with the FFC area cable of standard between first circuit board and the second circuit board.

The working principle is as follows: the intelligent lighting gateway module is used as a field bus communication interface link of the intelligent lighting gateway module by designing a circuit based on a Pyxos FT communication chip, and supports the transmission of 24VAC/DC power supplies on a pair of 2-core twisted-pair wires due to the characteristics of the Pyxos FT chip, wherein a communication protocol processor and a field bus network transceiver are embedded, and the transmission rate of communication signals and power supply are nonpolarity, and can reach 312.5Kbps, and the power supply of the intelligent lighting gateway module can be obtained by a transceiver end of the Pyxos FT chip through line coupling isolation and a power supply management circuit; the MCU 1 carries out protocol data interaction with a Pyxos FT chip, transmits a communication data frame of the intelligent lighting gateway module through a high-speed field bus, and simultaneously supports power supply of a communication link, and the communication link is connected with a non-polar twisted pair;

the working principle of the power management unit 6 is that a power supply in a communication link is 24VAC/DC signals, 24VDC/AC power supply signals in a 2-core non-polar twisted-pair communication line are separated through the coupling isolation unit 5, the power supply part adopts an MB6S bridge stack to rectify the signals into direct current 24V, a step-down DC chip 62 is adopted to convert the 24VDC into 5VDC, and the model of the step-down DC chip 62 is AX 3007; further adopting a voltage-stabilizing DC chip 63 with the model number of AMS1117 to convert 5VDC into 3.3VDC to be used as a circuit power supply of the MCU and communication chip system of the intelligent lighting gateway module; the power supply of the power supply is reduced to corresponding voltage, and then the voltage is provided for each system functional circuit;

DALI communication unit 2 working principle: the level of a signal at a transmitting and receiving end is high or low, so that the optocoupler switch is controlled to enable the DALI signal to be correspondingly changed into low or high level, the transmitting and receiving of the DALI signal are realized, and the model of the optocoupler is TCLT 1000; the DALI communication unit 2 is powered by a master controller or an external power supply; the maximum supply current must be limited to 250 mA and the current consumption of each device on the DALI line is 2 mA maximum; performing communication by sinking current on the line; since the communication line is electrically isolated from the supply voltage, all devices can operate on different phases;

the 485 communication unit 4, in this embodiment, the 485 communication unit 4 uses a 485 communication chip AZRS485, the receiving and sending pins of the interface chip are controlled by the MCU microcontroller 1 to realize the switching of signal receiving and sending, when the MCU microcontroller 1 needs to send data, the interface chip is switched to a sending mode, the data is sent out through TXD, when the MCU microcontroller 1 needs to receive data, the interface chip is switched to a receiving mode, and the data is received back through RXD; the 485 communication unit plays a role in debugging in the debugging process, is connected to a 485 tool through two lines, and is operated by upper computer software, so that the whole system can be conveniently and quickly debugged;

working principle of the Pyxos FT communication unit 3: the Pyxos FT chip is embedded with a complete Pyxos FT protocol, in the embodiment, the Pyxos FT chip adopts a 20-pin QFN packaging form, the MCU microcontroller 1 performs protocol data interaction with the Pyxos FT communication unit 3 through an SPI bus, and performs interactive transmission on data with other equipment modules on the bus through a field bus interface; the Pyxos FT communication unit 3 is a two-wire interface, the bus is powered by the outside, and the MCU carries out protocol data interaction with the Pyxos FT communication unit through the SPI bus;

the working principle of the coupling isolation unit 5 is as follows: the data signal of the Pyxos bus is a high-frequency carrier signal, so that the 2-core field twisted-pair bus is isolated through a 680uH common-mode inductor to isolate a communication signal;

MCU microcontroller 1 adopts STM32G070CBT6 chip, and STM32G070CBT6 is 32 bit low-power consumption microcontrollers, handles communication and protocol forwarding in this module, realizes signal acquisition on each bus, handles the setting information of key signal input to return corresponding information.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. An intelligent lighting gateway module, characterized in that: the DALI communication unit comprises an MCU (microprogrammed control Unit), a 485 communication unit, a Pyxos FT (Power off switch) communication unit and a DALI communication unit, wherein the 485 communication unit receives 485 signals and is connected with the MCU unit, the Pyxos FT communication unit receives field bus signals and is connected with the MCU unit, and the DALI communication unit receives signals sent by the MCU unit and sends DALI signals to a DALI bus.

2. The intelligent lighting gateway module of claim 1, wherein: the gateway module also comprises a power management unit which is used for converting the power signal in the field bus and outputting the converted power signal to the system control circuit.

3. The intelligent lighting gateway module of claim 2, wherein: the power management unit comprises a rectifier bridge for rectifying a current bridge stack on the field bus link into direct current, a voltage reduction DC chip for reducing the rectified direct current, and a voltage stabilization DC chip for converting the reduced current into set voltage and supplying the set voltage to the MCU.

4. The intelligent lighting gateway module of claim 1, wherein: the gateway module also includes a coupling isolation unit for isolating power signals from communication signals in the fieldbus.

5. The intelligent lighting gateway module of claim 4, wherein: the coupling isolation unit includes a common mode inductor for isolating the fieldbus pass signals from the power supply signal.

6. The intelligent lighting gateway module of claim 1, wherein: the 485 communication unit comprises a 485 communication chip.

7. The intelligent lighting gateway module of claim 1, wherein: the Pyxos FT communication unit comprises a Pyxos FT chip embedded with Pyxos FT protocol.

8. The intelligent lighting gateway module of claim 7, wherein: the Pyxos FT chip is in interactive transmission with the MCU through an SPI bus, and the Pyxos FT chip is connected with the common-mode inductor through a field bus.

9. The intelligent lighting gateway module of claim 1, wherein: the DALI communication unit comprises an optical coupler which correspondingly converts the DALI signal into low level or high level by sending the level of the receiving end signal.

10. The intelligent lighting gateway module of any one of claims 2-9, wherein: the LED lamp comprises a Pyxos FT communication unit (3), a DALI communication unit (2), an MCU microcontroller (1), a 485 communication unit (4) and a power management unit (6), wherein the Pyxos FT communication unit, the DALI communication unit, the MCU microcontroller (1), the 485 communication unit and the power management unit are welded on a first circuit board, the first circuit board is fixed on a bottom shell, the bottom shell is clamped and installed on an upper shell through a connecting groove, a second circuit board is fixed in the upper shell, an LED indicating unit is welded on the second circuit board, and a key hole (73) and an indicating lamp hole (74) are formed in the upper shell.