Embedded system data back-up device and method
An embedded system, data backup technology, applied in the transmission system, hardware redundancy for data error detection, response error generation and other directions, can solve the problem of low efficiency, power consumption is only mW, real-time write speed is slow and other problems, to achieve the effect of improving real-time and reliability, reducing dangerous time, and rapid read and write access.
Inactive Publication Date: 2007-11-14
HUAWEI TECH CO LTD
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] 3) Embedded microprocessors must have very low power consumption, especially for battery-powered embedded systems used in portable wireless and mobile communication devices, and their power consumption is only mW or even μW;
[0012] In the above-mentioned prior art, the backup data directly deals with the final saved permanent storage medium, which is relatively simple to implement and does not need to distinguish between foreground and background operations. The input speed is too slow, and the efficiency is low. The reliability is dangerous because some permanent storage media (such as FLASH) write operations need to erase the corresponding data blocks in advance. At this time, if the network element is reset or power-off, it will data cannot be recovered correctly
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] Generally, memory has the following performance indicators:
[0035] 1. Storage capacity
[0036] Memory capacity refers to the total amount of binary information that the memory can hold, that is, the total number of bits (Bit) of stored information. The larger the memory capacity, the more information can be stored. At present, the capacity of memory chips is increasing, and the price is constantly decreasing, which is mainly due to the development of large-scale integrated circuits.
[0037] 2. Access speed
[0038] The speed of the memory directly affects the speed of the computer. The access speed can be measured by the two time parameters of access time and storage cycle. The access time refers to the time elapsed from the CPU issuing a valid memory address to start a memory read and write operation until the read and write operation is completed. The smaller the time, the faster the access speed. At present, the access time of the cache memory is less than 5...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embedded system data back-up device includes one power-on non-volatile memory for storing back-up embedded system data; two-stage back-up memory connected to the non-volatile memory for two-stage back-up of the back-up embedded system data of the power-on non-volatile memory; an internal memory for buffering storage of the embedded system data; and a microprocessor for controlling data back-up and data restoring of the said devices. In addition, the present invention also discloses the corresponding embedded system data back-up method. By means of the power-on non-volatile memory with fast read / write speed and the two-stage back-up memory of permanent memory medium, the present invention has raised back-up and restoring data access real-time property and write reliability.
Description
technical field [0001] The present invention relates to the technical field of data backup, and more specifically, the present invention relates to a data backup device and method in an embedded system. Background technique [0002] Embedded systems generally refer to non-PC systems, which include hardware and software. Typically, hardware includes processors / microprocessors, memory, peripheral devices and I / O ports, and graphics controllers, etc., and software includes operating systems (requiring real-time and multitasking operations) and applications, which control the system's operation, while the operating system controls how applications interact with the hardware. [0003] The core of an embedded system is an embedded microprocessor. Generally, embedded microprocessors have the following four characteristics: [0004] 1) It has strong support for real-time multitasking, can complete multitasking and has a short interrupt response time, so that the execution time of...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/16H04B1/74
Inventor 刘刚梁峰
Owner HUAWEI TECH CO LTD