CN202720868U - LED display control device - Google Patents

Abstract

The utility model discloses an LED display screen control device, which relates to the technical field of road LED variable message signs. The alternating current is input into an AC contactor (1) of the device, and the AC contactor (1) is connected with an AC detection unit (2) through a control line. The AC detection unit (2) is connected with a main control card (3). The main control card (3) is connected with a temperature detection module (4) and a brightness detection module (5) through data transmission lines. The AC contactor (1) is connected with a plurality of slave control cards (6) through power supply lines. The main control card (3) and the first slave control card (6) are connected with each other. The plurality of slave control cards (6) are mutually connected with each other through information transmission lines and are respectively connected with a plurality of display areas (7). The LED display screen control device has the advantages of simple structure and reasonable design, and can realize the automatic adjustment of the lighting brightness. Meanwhile, the device is capable of detecting various faults. When a fault is detected by the device, the power supply of an LED display screen is powered off. Thus, the device is high in reliability and convenient in debugging operation.

Description

LED display control device

Technical field:

The utility model relates to the technical field of highway variable LED information boards, in particular to an LED display screen control device.

Background technique:

With the development of society and economy, the volume of road traffic is increasing continuously, and related traffic problems such as traffic congestion, traffic accidents, environmental pollution and energy shortage have become common problems faced by all countries. The role of highways in the development of the national economy is becoming more and more prominent, and the use of advanced intelligent transportation technology has increasingly been highly valued by countries. Vehicle speed limit, diversion, reasonable diversion, and advance forecasting will greatly reduce traffic congestion caused by heavy fog, heavy snow, icy roads, poor road conditions, road control, etc., and reduce the occurrence of car accidents.

The current highway variable information boards are composed of LED display screens and control circuits. Highway LED information boards have higher requirements than ordinary civilian display screens. They need automatic brightness, switching power supply detection, AC power supply detection, door switch detection, and power supply lightning protection detection. , signal lightning protection, module detection, pixel point detection, etc., but there are still some defects in the existing LED display screen, such as: the luminous brightness cannot be automatically adjusted, the reliability is not high, and the debugging is inconvenient, etc., which restricts its development. .

Utility model content:

The purpose of this utility model is to provide a LED display control device, which has a simple structure and reasonable design, can realize automatic adjustment of luminous brightness, can detect various faults, and disconnect the power supply of the LED display when a fault is detected. High, easy to debug.

In order to solve the existing problems in the background technology, the utility model adopts the following technical solutions: it includes an AC contactor 1, an AC detection device 2, a master control card 3, a temperature detection module 4, a brightness detection module 5, a slave control card 6 and Display area 7, AC input AC contactor 1, AC contactor 1 is connected with AC detection device 2 through control line, AC detection device 2 is connected with main control card 3, main control card 3 is connected with temperature detection module 4, brightness through data transmission line The detection module 5 is connected; the AC contactor 1 is connected to several slave control cards 6 through power supply lines, the main control card 3 is connected to the first slave control card 6, and the slave control cards 6 are connected to each other through information transmission lines , several slave control cards 6 are respectively connected to several display areas 7 .

The AC contactor 1 is used to switch the power supply of the LED display screen. When the main control card 3 detects a failure of the screen or a power failure, the AC contactor 1 is turned off to disconnect the power supply of the screen.

The main control card 3 is responsible for receiving data from the temperature detection module 4 and the brightness detection module 5, detecting various faults and controlling the switch and brightness of the screen power supply.

The slave control card 6 is responsible for receiving the display data of the master control card 3 and displaying it on the display screen.

The utility model has simple structure and reasonable design, can realize automatic adjustment of luminous brightness, can detect various faults, and cut off the power supply of the LED display screen when a fault is detected, has high reliability and is convenient for debugging.

Description of drawings:

Fig. 1 is the structural representation of the utility model,

Fig. 2 is the work flowchart of the utility model.

Detailed ways:

Referring to Fig. 1-Fig. 2, this specific embodiment adopts the following technical solutions: it includes an AC contactor 1, an AC power detection device 2, a master control card 3, a temperature detection module 4, a brightness detection module 5, a slave control card 6 and a display area 7. AC input AC contactor 1, AC contactor 1 is connected with AC detection device 2 through control line, AC detection device 2 is connected with main control card 3, main control card 3 is connected with temperature detection module 4 and brightness detection module through data transmission line 5 connections; the AC contactor 1 is connected to several slave control cards 6 through power supply lines, the master control card 3 is connected to the first slave control card 6, and each slave control card 6 is connected to each other through an information transmission line. Each slave control card 6 is connected to several display areas 7 respectively.

The AC contactor 1 is used to switch the power supply of the LED display screen. When the main control card 3 detects a failure of the screen or a power failure, the AC contactor 1 is turned off to disconnect the power supply of the screen.

The main control card 3 is responsible for receiving data from the temperature detection module 4 and the brightness detection module 5, detecting various faults and controlling the switch and brightness of the screen power supply.

The slave control card 6 is responsible for receiving the display data of the master control card 3 and displaying it on the display screen.

This specific embodiment has simple structure and reasonable design, can realize automatic adjustment of luminous brightness, can detect various faults, and disconnect the power supply of the LED display screen when a fault is detected, has high reliability and is convenient for debugging.

Claims (2)

1.LED display screen control device, it is characterized in that it comprises A.C. contactor (1), alternating current pick-up unit (2), main controller (3), temperature detecting module (4), brightness detection module (5), from control card (6) and viewing area (7), alternating current input AC contactor (1), A.C. contactor (1) is connected with alternating current pick-up unit (2) by control line, alternating current pick-up unit (2) is connected with main controller (3), and main controller (3) is by data line and temperature detecting module (4), brightness detection module (5) connects.

2. LED display control device according to claim 1, it is characterized in that described A.C. contactor (1) is connected from control card (6) with several respectively by supply lines, main controller (3) interconnects from control card (6) with first, and respectively interconnect by transmission line of information between control card (6), several are connected with several viewing areas (7) respectively from control card (6).

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