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Offline control device

An off-line control and control terminal technology, which is applied in the direction of lighting devices, lamp circuit layout, light source, etc., can solve the problems of complex development, fewer control points, and higher costs, so as to reduce product costs, reduce performance requirements, and facilitate model selection. Effect

Inactive Publication Date: 2014-12-03
BEIJING ZHONGQING MICRO ELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current off-line control products have the following solutions: Option 1, such as figure 1 , the microcontroller uses the SPI communication method to operate the memory card, obtains data according to the data storage format of the computer and performs data processing, and generates an off-line control scheme for lamp control signals. This scheme uses the microcontroller for data processing, and the requirements for the microcontroller High, data processing efficiency and communication rate have bottleneck problems, the number of control points is small, the display performance is low, and it is difficult to meet the needs of LED display control; scheme two, such as figure 2 , use the SD bus interface that comes with the high-end microcontroller to directly operate the SD card, get it according to the computer data storage format, send it directly without processing, and get the lamp control signal through data processing by other sub-control boards, but the high-end microcontroller only For data format communication conversion applications, a certain number of peripheral sub-control boards are required to perform data conversion to generate lamp signals, and the cost of insufficient utilization of device performance increases; Option 3 uses the control method of programmable logic devices, and the structure is similar to Option 2. Display performance And the number of control points is higher than that of the second scheme, but there are still disadvantages of complex development and inflexible changes

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as image 3 As shown, this embodiment provides an LED offline control data processing device, which includes a storage module 11, a control module 12, and a data processing module 13. Preferably, the control module 12 communicates with each other through a serial peripheral interface SPI (Serial Peripheral Interface) The storage module 11 is connected to the control terminal CMD, and is connected to the control terminal of the data processing module 13 through other communication methods (such as CPU parallel port mode) to realize the data communication function. The data processing module 13 is also connected to the data terminal of the storage module 11, and the control module 12 is used for Send control commands to the storage module 11 and the data processing module 13 to control the data processing module to read data from the storage module; the data processing module 13 is used to respond to the control signal of the control module 12 to read file system data a...

Embodiment 2

[0049] On the basis of Embodiment 1, the storage module 11 uses a removable storage card, such as an SD card, which is inserted into a fixed slot for fixing the storage card, and the control module 12 uses a microcontroller MCU (Micro Controller Unit), such as AVR single-chip microcomputer and data processing module 13 preferably adopt Field-Programmable Gate Array (Field-Programmable Gate Array) or Complex Programmable Logic Device (CPLD), for example, Stratix III series FPGA launched by Altera Corporation can be used. The single-chip microcomputer is low in price, strong in control ability, FPGA data processing ability is strong, and the application is flexible. The two combine their strengths to achieve the goal of low cost and high performance.

Embodiment 3

[0051] On the basis of embodiment 1, the offline control device of this embodiment further includes an input module (not shown in the figure), such as a handheld wireless input device, a wired input device, or a key input device, which is connected to the control module 12 Connected and used to input control commands to the control module 12, such as control commands for controlling playback content, playback speed, and playback mode.

[0052] In another example, the offline control data processing device of this embodiment may further include a display module

[0053] (Not shown in the figure), for example, a liquid crystal display, a nixie tube display device or an indicator light can be used to provide a platform for human-machine communication. The display module 16 is connected to the control module 12 for displaying system working status information.

[0054] As another example, in an offline control data processing device, the control module 12 and the data processing module 1...

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Abstract

The invention discloses an offline control device, which comprises a storage module, a control module and a data processing module, and the invention also discloses an offline control method at the same time. The invention controls a storage card and an external equipment interface therewith through a microcontroller, processes data through a programmable device, reduces the performance requirement on the microcontroller and the programmable logic device through the structure connecting relation, improves the working efficiency, facilitates model selection and reduces the product cost.

Description

Technical field [0001] The present invention relates to the technical field of LED control, in particular to an LED offline control device. Background technique [0002] The LED display offline control scheme has the characteristics of large data volume and high requirements for the controller hardware by special algorithms. The current offline control products have the following solutions: Solution 1, such as figure 1 , The microcontroller uses the SPI communication method to operate the memory card, obtains the data according to the data storage format of the computer and performs data processing, and generates an offline control program for the lamp control signal. The program uses a microcontroller for data processing and requires the microcontroller High, there are bottlenecks in data processing efficiency and communication speed, the number of control points is small, the display performance is low, and it is difficult to meet the needs of LED display control; solution two,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32H05B37/02
Inventor 伍更新邵寅亮刘大伟
Owner BEIJING ZHONGQING MICRO ELECTRIC TECH