Transmission/dispatching method and device of secure digital (SD) card data and data gathering system
A scheduling method and technology for scheduling devices, which are applied in multi-programming devices, program startup/switching, etc., can solve problems such as system crash excitation and inability to respond, and achieve the solution of ensuring correctness and integrity, and solving storage and reading problems. Effect
Active Publication Date: 2013-06-26
维谛新能源有限公司
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Therefore, any one program takes up too much system time resources, which will cause the system to crash or fail to respond to incentives.
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[0044] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0045] figure 1 It is a schematic flow chart of an embodiment of the SD card data transmission / scheduling method of the present invention.
[0046] refer to figure 1 , the transmission / scheduling method of SD card data of the present invention comprises the following steps:
[0047] Step S01, receiving data to be stored in the SD card;
[0048] After the data in the real-time system is collected by the data collection device in the real-time system, it is generally stored, for example, in an SD card.
[0049] Step S02, performing data flow processing on the data to be stored in the SD card, and writing it into the memory buffer;
[0050] Specifically, data stream...
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The invention discloses a transmission / dispatching method and a device of secure digital (SD) card data and a data gathering system. The transmission / dispatching method comprises the following steps: receiving data which need to be stored in an SD card; starting data flow process to the data which need to be stored in the SD card, and writing in an internal storage buffering area; starting dividing process to the data flow of the internal storage buffering area; and transferring the data flow which is processed by dividing to the SD card to store. Based on a preset transmission strategy, the transmission / dispatching method and the device of secure digital (SD) card data and the data gathering system transfer the data which need to be stored to the SD card to store after dividing, the phenomenon that implementing time of transferring the data to the SD card does not occupy excessive systematic time resource is guaranteed, correctness and integrity of data transmission are further guaranteed, thereby solving the problems of data storage and data reading in a real-time system.
Description
technical field [0001] The invention relates to the technical field of data acquisition, in particular to a SD card data transmission / scheduling method, device and data acquisition system. Background technique [0002] A real-time operating system (RTOS) is a system that can complete system functions and respond to external or internal, synchronous or asynchronous time within a specified or determined time. Therefore, the real-time system should have the ability to identify and process discrete events within a defined time range, and be able to process and store a large amount of data required by the control system. [0003] In a real-time system, generally there is a reasonable allocation of time slices occupied by each program. Therefore, too much system time resource occupied by any one program will cause the system to crash or fail to respond to the stimulus. Therefore, for real-time systems that need to collect and store a large amount of data, it is an urgent problem...
Claims
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IPC IPC(8): G06F9/48
Inventor 胡志峰胡煜雒鹏飞
Owner 维谛新能源有限公司