CN108770120B

CN108770120B - Intelligent channel state lamp

Info

Publication number: CN108770120B
Application number: CN201810517113.7A
Authority: CN
Inventors: 吴丁伢
Original assignee: Steligent Information Technologies Co ltd
Current assignee: Steligent Information Technologies Co ltd
Priority date: 2018-05-25
Filing date: 2018-05-25
Publication date: 2021-03-23
Anticipated expiration: 2038-05-25
Also published as: CN108770120A

Abstract

The invention discloses an intelligent channel state lamp, which comprises an MCU main control board, an LED display interface board A and an LED display interface board B which are connected with the MCU main control board, the LED display interface board A and the LED display interface board B are internally provided with interfaces J1, J2, an IO expansion circuit, 4 red LOS display lamps and 4 green channel opening ON display lamps respectively, the IO expansion circuit is connected with the 4 red LOS display lamps and the 4 green channel opening ON display lamps respectively, the LED display interface board A is also internally provided with an AB board selection circuit, and an interface J2 in the LED display interface board A is connected with an interface J1 in the LED display interface board B. The production and detection are convenient.

Description

Intelligent channel state lamp

Technical Field

The invention relates to the technical field of illumination, in particular to an intelligent channel state lamp.

Background

With the continuous appearance of negative effects caused by global greenhouse effect, energy conservation and emission reduction are considered as important problems in the economic development of the country in all countries in the world, and the LED lighting technology is an emerging energy-saving technology which is generated under the background. At present, LED lighting products are applied to daily life, and with the rapid development of LEDs. The traditional light source compared with the existing white light LED light source has the advantages of long service life, difficult damage of solid illumination, high luminous efficiency, no mercury, environmental protection, shock resistance and the like, and can become a third-generation light source in the future and bring about another revolution in the illumination field. The prior art is more complicated to the control wiring of a plurality of LED boards, and the control mode is loaded down with trivial details.

Disclosure of Invention

The invention aims to provide an intelligent channel state lamp to solve the problems mentioned in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an intelligent channel state lamp comprises an MCU (microprogrammed control Unit) main control board, an LED display interface board A and an LED display interface board B which are connected with the MCU main control board, wherein interfaces J1, J2, an IO expansion circuit, 4 red LOS display lamps and 4 green channel opening ON display lamps are arranged in the LED display interface board A and the LED display interface board B respectively, the IO expansion circuit is connected with the 4 red LOS display lamps and the 4 green channel opening ON display lamps respectively, an AB board selection circuit is further arranged in the LED display interface board A, and an interface J2 in the LED display interface board A is connected with an interface J1 in the LED display interface board B.

As a preferred embodiment of the present invention: the model of the MCU master control board is CY8C5868AXI-LP 035.

As a preferred embodiment of the present invention: the IO expansion circuit is of a model of TCA9535 or TCA 9435.

As a preferred embodiment of the present invention: the MCU main control board is connected with the LED display interface board A and the LED display interface board B through an I2C communication interface.

As a preferred embodiment of the present invention: the distance between the centers of the red LOS display lamps is 12mm, and the distance between the centers of the 4 green channel ON ON display lamps is 12 mm.

Compared with the prior art, the invention has the beneficial effects that: 1. and the serial bus is adopted for connection, so that the connecting wires are few, the reliability is high, and the cost is low. The serial bus is I2C bus, and two data lines are used between the main board and the display interface board to connect SCL and SDA, plus power line +3V3 and ground line GND. A total of 4. If the common existing solutions are all controlled by parallel buses, each equal is controlled by an IO bus, 8 LED lamps need 8 lines, and the innovative solution can control 8 lamps by only 2 lamps, so that the scheme can realize the display control of up to 128 LEDs by using 2 serial buses, which cannot be realized by the traditional control mode. 2. Because the number of connecting wires is greatly reduced, the cost is lower and the reliability is higher. The traditional mode is a parallel bus, the number of connecting wires in the bus is large, and the abnormal display of the corresponding LED can occur as long as a fault occurs; 3. convenient extension, single MCU main control board can realize the connection of a plurality of LED sub-control boards, and J1 is responsible for being connected with the main control MCU board, and J2 is responsible for the cascade with next LED sub-control board. 4. The MCU board provides a 4Pin socket to be connected with each daughter board, and the connection between the main board and the daughter boards is only four wires; the connection of the J2 and each cascaded daughter board is also defined, so that each cascaded daughter board is also powered by a power supply, and the power supply and the ground are not required to be provided, thereby greatly simplifying the connection of the main board and the LED display daughter board. 5. The connection greatly simplifies the internal connection of the case, and the main board and each LED display sub-board can be connected by a single row of 4Pin wires. The production and detection are convenient.

Drawings

Fig. 1 is a schematic diagram of the operation of the present invention.

Fig. 2 is a circuit diagram of an I2C communication interface.

Fig. 3 is a circuit diagram of an LED display interface board.

Fig. 4 is a circuit diagram of an ON display lamp.

Fig. 5 is an ON display lamp.

Fig. 6 is a peripheral circuit diagram of the LED board.

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.

Referring to fig. 1-6, an intelligent channel status light, the MCU board performs control, and the LED display interface board is responsible for displaying communication between the two boards via I2C. The interface circuit of the MCU master control board, as shown in FIG. 2, the display interface board shares an I2C bus control, and the chip TCA9535 is used to realize the analysis of the I2C command, as shown in FIG. 3. The P14-P17 realize the control display of the channel ON/OFF lamp, the P04-P07 realize the control display of the channel LOS lamp, and the LED lamp display driving circuit, as shown in figures 4 and 5, the LED board 1 is responsible for the state display of the core board of CH 1-CH 4 of BERT. The LED board 2 is responsible for displaying the states of the core boards of CH 5-CH 8 of BERT, is controlled by the same MCU main control board and is controlled by SCL3 and SDA 3. The chip TCA535 of the LED board implements the parsing of the I2C command, the circuit is as shown in fig. 6 for Pin18 Pin of the LED board.

The working principle of the invention is as follows: the MCU on the MCU master control board is a PSoC series MCU of cypress company, and the model is CY8C5868AXI-LP 035.

The circuit A of the LED display interface board and the circuit B of the LED display interface board are the same circuit board, and the circuit A and the circuit B are switched by the switching circuit A;

the distance between the centers of the red lamps is 12mm;

the distance between the centers of the green lamps is 12mm;

the distance between the red light and the distance between the green light and the green light are equal to the center distance of the hole of the reserved light on the front panel of the BT6201 equipment, so that the light on the panel can just stretch out of the hole reserved on the front panel to be displayed.

MCU board and display interface board interface circuit.

With the IO expander circuit: TCA9535/TCA9435 to expand input and output, and the input of the IO expansion circuit is two Pin line SCL, SDA. TCA9535/TCA9435 can expand up to 16 input and output lines. This allows the control of up to 16 LED lamps to be displayed with a two Pin bus.

By the pair IO expansion circuit: the logic levels of Pin18, Pin23 and Pin24 of TCA9535/TCA9435, and Pin18 may be connected to GND (corresponding to 0), may be connected to +3.3v (corresponding to 1), and Pin23 may be connected to GND (corresponding to 0), may be connected to +3.3v (corresponding to 1), and Pin24 may be connected to GND (corresponding to 0), and may be connected to +3.3v (corresponding to 1), so that we may realize 8 LED display daughterboards cascaded to a bus of I2C by setting 0 or 1 of Pin18, Pin23 and Pin 24.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The intelligent channel state lamp is characterized by comprising an MCU (microprogrammed control unit) main control board, an LED display interface board A and an LED display interface board B, wherein interfaces J1, J2, an IO expansion circuit, 4 red LOS display lamps and 4 green channel opening ON display lamps are arranged in the LED display interface board A and the LED display interface board B respectively, the IO expansion circuit is connected with the 4 red LOS display lamps and the 4 green channel opening ON display lamps respectively, an AB board selection circuit is also arranged in the LED display interface board A, an interface J2 in the LED display interface board A is connected with an interface J1 in the LED display interface board B, a single MCU main control board realizes the connection of a plurality of LED sub-control boards, J1 is responsible for the connection with the main control MCU board, and J2 is responsible for the cascade connection with the next LED sub-control board.

2. The intelligent channel status light as claimed in claim 1, wherein the MCU master control board has a model CY8C5868AXI-LP 035.

3. A smart channel state lamp as claimed in claim 1, wherein the IO extension circuit is of the model TCA9535 or TCA 9435.

4. The intelligent channel status lamp according to claim 1, wherein the MCU main control board is connected to the LED display interface board a and the LED display interface board B via an I2C communication interface.

5. A smart channel status light as claimed in claim 1 wherein the centre-to-centre spacing between the red LOS lights is 12mm and the centre-to-centre spacing between the 4 green channel ON lights is 12 mm.