CN215933164U - Variable lane sign system based on LED module - Google Patents

Abstract

The utility model relates to the technical field of traffic lights, in particular to a variable lane sign system based on an LED module, which comprises an external AC220V power supply input, a power supply, a control main board, the LED module, an AC220V signal input 1, an AC220V signal input 2 and a burning interface, and is characterized in that the external AC220V power supply input is sequentially connected to the power supply, the power supply is connected to the control main board and the LED module, the AC220V signal input 1 and the AC220V signal input 2 are connected to the control main board, and the control main board is connected to the LED module. The lane-changeable sign is realized by using the LED module, the pattern is flexibly displayed, the change is convenient, the display effect is good, and no granular sensation exists.

Description

Variable lane sign system based on LED module

Technical Field

The utility model relates to the technical field of traffic lights, in particular to a variable lane sign system based on an LED module.

Background

The LED lamp beads are arranged according to the required variable sign patterns, different patterns need different LED lamp bead layouts, the sign patterns cannot be changed after the LED lamp beads are arranged, when the sign patterns of the variable sign used on site are required to be adjusted, the sign can only be replaced due to the fact that the LED lamp bead layout mode cannot be changed, waste is caused, the LED lamp beads are not easy to be dense, particle sense is caused when the sign is used, and the visual effect is general.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a variable lane marking system based on an LED module.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the designed LED module-based lane-changeable sign system comprises an external AC220V power supply input, a power supply, a control main board, an LED module, an AC220V signal input 1, an AC220V signal input 2 and a burning interface, and is characterized in that the external AC220V power supply input is sequentially connected to the power supply, the power supply is connected to the control main board and the LED module, and the AC220V signal input 1 and the AC220V signal input 2 are connected to the control main board and the control main board is connected to the LED module.

Preferably, the control main board corresponds the program according to the input signal of AC220V signal input 1 and AC220V signal input 2, when only AC220V signal input 1 signal, the control main board controls the LED module to display program 1, when only AC220V signal input 2 signal, the control main board controls the LED module to display program 2, the input end signal of the optical coupler U2 is input by AC220V signal input 1 through AC220 input P1's 2 feet, and the input end signal of the optical coupler U2 enters the optical coupler U2 through R1 and the input end of the optical coupler U2.

Preferably, the burning interface is connected to the control mainboard.

Preferably, the control main board comprises an AC220 input P1, an AC-to-DC power supply U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an optical coupler U2, an optical coupler U3, a single chip microcomputer U4, a load direct-current power supply output P2, an LED module control output P3 and a burning port P4;

an external alternating current is connected to an AC220 input P1, electricity is connected to an input L pin and an input N pin of an AC-to-DC power supply U1 through a pin 1 and a pin 4 of an AC220 input P1, wherein the pin 4 of the P1 is a common N pin, the AC-to-DC power supply U1 is electrically operated, direct current is output from pins VDD and GND to supply to a singlechip U4 and an LED module control output P3, the singlechip U4 is electrically operated, one end of a resistor R3 is connected to VDD, the other end of the resistor R3 is connected to a pin Rin at the output end of an optical coupler U2, the pull-up function of the resistor R3 is realized, the other pin at the output end of the optical coupler U2 is connected to GND, a signal at the input end of the optical coupler U2 is input from the AC220 signal input 1 through a pin 2 of the AC220 input P1, the signal is input into the optical coupler U2 through the R1, the common 4 pin Rin of the P1 forms a loop, when the AC220 signal input 1 is electrically operated, the input end of the optical coupler U2 is connected to form a low level, the low level of the optical coupler Rin level. On the contrary, when the AC220V signal input 1 is not powered, the input end of the optical coupler U2 is not turned on, the output end of the optical coupler U2 is not turned on, the pin Rin is pulled up to VDD by the resistor R3, so that the pin Rin is represented as a high level at the moment, when the AC220V signal input 1 is powered, the pin Rin is controlled to be a low level, and when the AC220V signal input 1 is not powered, the pin Rin is controlled to be a high level. Similarly, when the AC220V signal input 2 is powered on, the pin Gin is controlled to be at a low level by the pin 3 of the P1, the resistor R2 and the optical coupler U3, and when the pin Gin is not powered on, the pin Gin is pulled up to be at a high level by the resistor R4.

The utility model provides a variable lane sign system based on an LED module, which has the beneficial effects that: according to the utility model, the control mainboard is adopted to control the LED module display mode, the LED module is flexibly changed to display different patterns by updating the firmware, when the changeable lane sign of the LED module has the changed patterns, hardware does not need to be changed, only the firmware needs to be changed, meanwhile, the LED module is a universal mature product on the market, the LED module is convenient to select and use, meanwhile, the LED point distance of the LED module is easily smaller than the point distance of the LED lamp bead arrangement, and the LED module has good pattern visual effect and no granular sensation. The lane-changeable sign is realized by using the LED module, the pattern is flexibly displayed, the change is convenient, the display effect is good, and no granular sensation exists.

Drawings

Fig. 1 is a block diagram of a variable lane signage system based on LED modules according to the present invention;

fig. 2 is a schematic circuit diagram of a control main board of a variable lane marking system based on LED modules according to the present invention.

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.

Referring to fig. 1-2, a variable lane marking system based on an LED module includes an external AC220V power supply input, a power supply, a control main board, an LED module, an AC220V signal input 1, an AC220V signal input 2, and a burning interface, wherein the external AC220V power supply input is sequentially connected to the power supply, the power supply is connected to the control main board and the LED module, the AC220V signal input 1 and the AC220V signal input 2 are connected to the control main board, and the control main board is connected to the LED module. The control mainboard and the LED module are powered by a power supply to work, the control mainboard outputs programs to the LED module according to AC220V signal input 1 and AC220V signal input 2 after working, the control mainboard corresponds to the programs according to the input signals of AC220V signal input 1 and AC220V signal input 2, when only AC220V signal input 1 is available, the control mainboard controls the LED module to display program 1, when only AC220V signal input 2 is available, the control mainboard controls the LED module to display program 2, the input end signal of the optical coupler U2 is input by AC220V signal input 1 through AC220 input P1 pin 2, and the input end of the optical coupler U2 is input into the optical coupler U3552 through R1 and through the input end of the optical coupler U2. The LED module variable lane sign realizes that the LED module variable lane sign displays corresponding program information according to AC220V signal input content, and the program information is sign information indicating that lanes are forbidden and allowed to pass, thereby realizing that the LED module variable lane sign can indicate passing information with changeable lanes and realizing the function of the LED module variable lane sign.

The burning interface is connected to the control mainboard, and firmware can be upgraded and program content can be changed through the burning interface, so that different use requirements are met.

The control main board comprises an AC220 input P1, an AC-to-DC power supply U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an optical coupler U2, an optical coupler U3, a single chip microcomputer U4, a load direct-current power supply output P2, an LED module control output P3 and a burning port P4;

referring to fig. 2, an external alternating current is connected to an AC220 input P1, electricity is connected to an input L pin and an input N pin of an AC-to-DC power supply U1 through a pin 1 and a pin 4 of an AC220 input P1, wherein the pin 4 of the P1 is a common pin N, the AC-to-DC power supply U1 is powered on to output direct current from a pin VDD and a pin GND to supply power to a singlechip U4 and an LED module control output P3, the singlechip U4 is powered on to operate, one end of a resistor R3 is connected to VDD, the other end of the resistor R3 is connected to a pin Rin of an output terminal of an optocoupler U2 to realize a pull-up function of a resistor R3, the other pin of the output terminal of an optocoupler U2 is connected to GND, a signal at an input terminal of the optocoupler U2 is input from a signal AC220 input 1 through a pin 2 of an AC220 input P1, the signal input terminal R1 enters a U2 through an input terminal of the U2, the common pin 4 of the P1 and then forms a loop, when an AC220 input terminal is powered, an input terminal of an AC V signal input terminal is connected to GND, the pin Rin is realized to be at a low level, on the contrary, when the signal input 1 of the AC220V is not electrified, the input end of the optical coupler U2 is not conducted, the output end of the optical coupler U2 is not conducted, the pin Rin is pulled up to VDD by the resistor R3, the pin Rin is realized to be at a high level at the moment, when the signal input 1 of the AC220V is electrified, the pin Rin is controlled to be at a low level, and when the signal input 1 of the AC220V is not electrified, the pin Rin is at a high level. Similarly, when the AC220V signal input 2 is powered on, the pin Gin is controlled to be at a low level by the pin 3 of the P1, the resistor R2 and the optical coupler U3, and when the pin Gin is not powered on, the pin Gin is pulled up to be at a high level by the resistor R4.

After the singlechip U4 works, the signal output conditions of the AC220V signal input 1 and the AC220V signal input 2 are judged according to Rin on a pin 7 and Gin level signals on a pin 8, when the pin Rin is at a low level, the AC220V signal input 1 is electrically input, and when the pin Gin is at a low level, the AC220V signal input 2 is electrically input. The singlechip U4 is controlled by a plurality of pins to output to an LED module control output P3, wherein A, B, C, D is a scanning row selection signal, R1, R2, G1, G2, B1 and B2 are respectively red, green and blue data serial inputs, STB is a data latch signal, CK is a serial data clock signal, OE is a display enable signal, the singlechip U4 displays a program 1 according to the condition that only Rin is low level, displays a black screen according to other combinations of the program 2, Rin and Gin when only Gin is low level, when the program 1 needs to be displayed, the singlechip U4 firstly controls the OE enable pin to be low level to disable display, then controls the STB to be high level to realize latch information, then A, B, C, D selects the scanning row signal, then transmits program content data through the R1, R2, G1, G2, B1, B2 and CK, after transmission is finished, the STB is controlled to be low level and then controls the STB to be high level to realize the latch the data just transmitted, then, controlling OE to be high level to start displaying the program, so that 1 frame of program information of the program 1 is displayed on the LED module, and similarly, transmitting data all the time, and displaying the content of the program 1 all the time; similarly, the program 2 and the program 1 are displayed and the black screen adopts the same method, so that the singlechip U4 controls the display of the program content.

The contents of the program 1, the program 2 and the black screen are set by the firmware contents of the single chip microcomputer U4, when different display contents are needed, only the firmware of the single chip microcomputer U4 needs to be changed, and hardware does not need to be replaced.

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 equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (4)

1. The utility model provides a changeable lane sign system based on LED module, includes outside AC220V power supply input, power, control mainboard, LED module, AC220V signal input 1, AC220V signal input 2 and burns record interface, its characterized in that, outside AC220V power supply input is connected to the power in proper order, the power reconnects to control mainboard and LED module, AC220V signal input 1 and AC220V signal input 2 are connected to the control mainboard, control mainboard reconnects to the LED module.

2. The LED module based variable lane marking system of claim 1, wherein the control main board corresponds to a program according to input signals of AC220V signal input 1 and AC220V signal input 2, the control main board controls the LED module to display the program 1 when only AC220V signal is input 1, controls the LED module to display the program 2 when only AC220V signal is input 2, and controls the LED module to display a black screen when there is an AC220V signal input 1 and there is an AC220V signal input 2 or when there is no AC220V signal input 1 and there is no AC220V signal input 2.

3. The LED module-based variable lane signage system of claim 1, wherein the burn interface is connected to the control motherboard.

4. The LED module based variable lane marking system of claim 2, wherein the control main board comprises an AC220 input P1, an AC-to-DC power supply U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an optical coupler U2, an optical coupler U3, a single chip microcomputer U4, a load DC power supply output P2, an LED module control output P3 and a burning port P4;

an external alternating current is connected to an AC220 input P1, 1 pin and 4 pins of an AC220 input P1 are connected to an input L pin and an input N pin of an AC-to-DC power supply U1, wherein 4 pins of a P1 are common N pins, the AC-to-DC power supply U1 is electrified to work, direct current is output from VDD and GND pins to supply to a singlechip U4 and an LED module control output P3, the singlechip U4 is electrified to work, one end of a resistor R3 is connected to VDD, the other end of the resistor R3 is connected to a Rin pin of an output end of an optical coupler U2 to realize a pull-up function of a resistor R3, the other pin of the output end of the optical coupler U2 is connected to GND, a signal of an input end of the optical coupler U2 is input into 1 from an AC220 signal through a 2 pin of an AC220 input P1, the signal is input into an input end of the optical coupler U2 through the R6342, enters an optical coupler U2 through an input end of the optical coupler U1 and then passes through a common 4 pin of the P1 to form a loop, when the AC220 signal input 1 is electrified, the input end of the AC 220U 2 is connected to realize a Rin level as a low level as a GND 573 level, on the contrary, when the AC220V signal input 1 is not electrified, the input end of the optical coupler U2 is not conducted, the output end of the optical coupler U2 is not conducted, the pin Rin is pulled up to VDD by the resistor R3, the pin Rin is shown as a high level at the moment, when the AC220V signal input 1 is electrified, the pin Rin is controlled to be a low level, and when the AC220V signal input 1 is not electrified, the pin Rin is controlled to be a high level; similarly, when the AC220V signal input 2 is powered on, the pin Gin is controlled to be at a low level by the pin 3 of the P1, the resistor R2 and the optical coupler U3, and when the pin Gin is not powered on, the pin Gin is pulled up to be at a high level by the resistor R4.

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