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Roadside led Chinese character advertising placard

A technology for placards and Chinese characters, applied in the field of roadside LED Chinese characters advertising placards, can solve problems such as increased cost, complicated wiring, and system collapse.

Active Publication Date: 2018-05-22
徐州博创建设发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of dedicated line communication, the wiring is complicated and the cost is increased. If the timing time is not corrected through the line communication, due to the traditional timing error, after several hours of operation, the accumulated timing error will make the system control action inconsistent, which may cause the system to collapse. In some occasions where the design is changed frequently and the amount of wiring engineering is large, the product application is limited

Method used

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  • Roadside led Chinese character advertising placard
  • Roadside led Chinese character advertising placard
  • Roadside led Chinese character advertising placard

Examples

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Embodiment Construction

[0025] image 3 It is the block diagram of the circuit structure of the LED Chinese character advertising placard on the side of the road, including: main controller 10, communication electronic switch 11, frequency discrimination circuit 12, controller 13, placard 14, electronic switch 15, wherein communication electronic switch 11 and frequency discrimination circuit 12 and figure 2 The single-chip microcomputer U0 is included in the controller 13 and the main controller 10 respectively. Both the communication electronic switch 11 and the electronic switch 15 use triacs as switches.

[0026] figure 2It is a structural diagram of the cycle discrimination circuit 12, which is composed of an input circuit S0, a voltage zero-crossing detection module V0, a ​​voltage comparator V1 and a voltage comparator V2. The single-chip microcomputer U0 refers to the single-chip microcomputer in the controller 13 and the main controller 10 . The input circuit S0 is used to convert the AC...

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Abstract

The invention relates to an LED Chinese character advertisement placard on a road. A main controller communicates with each controller via an electric grid, and transmits data displaying modes, parameters and display contents to each controller. After communication is finished, all the communication electronic switches are switched off, and then electronic switches are switched on and then switched off; during the communication process, a rechargeable battery connected in parrallel with a single-chip microcomputer power supply filter capacitor is used for power supply.

Description

(1) Technical field: [0001] The invention relates to an LED Chinese character advertising placard on the side of the road. The main controller communicates with each controller through the power network cable, and the main controller transmits the data of display mode, parameters and display content to each controller. , turn off all communication electronic switches, and then turn on the electronic switches and isolation electronic switches. During the communication period, it relies on the rechargeable battery connected to the single-chip power supply filter capacitor for power supply. (two) background technology: [0002] In the control system that is powered by the power grid, each electronic device or module communicates through a dedicated line to correct the timing time of each electronic device or electronic module to achieve the purpose of synchronous operation. Due to the use of dedicated line communication, the wiring is complicated and the cost is increased. If t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33G09G3/32
CPCG09F9/33G09G3/32
Inventor 张金木
Owner 徐州博创建设发展集团有限公司