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Offline control device

An offline control and control terminal technology, applied in lighting devices, electric lamp circuit layout, light source and other directions, can solve the problems of small number of control points, increased cost, complicated development, etc. Effect

Inactive Publication Date: 2009-12-02
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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Embodiment 1

[0044] Such as image 3 As shown, the present embodiment provides an LED off-line control data processing device, including a storage module 11, a control module 12 and a data processing module 13; preferably, the control module 12 communicates with the Storage module 11 control terminal CMD is connected, is connected with data processing module 13 control terminals by other communication modes (such as CPU parallel port mode), realizes data communication function, and data processing module 13 is also connected with storage module 11 data terminals, and control module 12 is used for Send control commands to the storage module 11 and the data processing module 13, and control the data processing module to read data from the storage module; the data processing module 13 is used to read file system data and control files from the storage module in response to the control signal of the control module 12 data, and then the data processing module processes the control file data to ...

Embodiment 2

[0049]On the basis of Embodiment 1, the storage module 11 uses a removable memory card, such as an SD card, which is plugged into a fixed slot for fixing the memory card, and the control module 12 adopts a microcontroller MCU (Micro Controller Unit), such as AVR single-chip microcomputer, data processing module 13 preferably adopts field programmable gate array FPGA (Field-Programmable Gate Array) or complex programmable logic device CPLD (Complex Programmable Logic Device), for example, can adopt the Stratix III series FPGA that Altera company releases. Single-chip microcomputer is cheap, has strong control ability, and FPGA has strong data processing ability and flexible application. The combination of the two can achieve the goal of low cost and high performance.

Embodiment 3

[0051] On the basis of Embodiment 1, the off-line control device of this embodiment also 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 compatible with the control module 12 connected to be used for inputting control commands to the control module 12, such as control commands for controlling playback content, playback speed, and playback mode.

[0052] As another example, the off-line control data processing device of this embodiment may also include a display module (not shown in the figure), for example, a liquid crystal display, a digital tube display device or an indicator light may be used to provide a platform for man-machine communication. The module 16 is connected with the control module 12 and is used for displaying system working status information.

[0053] As another example, in the off-line control data processing device, the control module 12 and the data process...

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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 invention relates to the technical field of LED control, in particular to an off-line LED control device. Background technique [0002] The LED display off-line control scheme has the characteristics of large amount of data and high requirements on the hardware of the controller by special algorithms. 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...

Claims

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Application Information

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