Through practice, sorting and analysis, some of the embedded rules that I have summarized in the process of learning embedded development are organized as follows for your reference: 1 Resource finite law Embedded computing not only requires fast and consistent network computing, but also requires the system to store its execution code and data in a “common†“small†space. 2 Robust law Embedded computing not only requires a fast and efficient calculation of the system, but also requires that the system continue to operate normally in the event of an error in some computing units. 3 real-time law The calculation results of the embedded system depend not only on the correctness of the logic operation of the system, but also on the calculation time of the operation result. 4 redundancy rule After the embedded system has sufficient redundancy, the impact of the system's “initial sensitivity†on its “final calculation results†becomes minimal. 5 Structural rules For embedded systems, the trend of structural complexity indicates that: a system structure is simpler and more efficient (The [filtered] st is the best); b system structure is more complex is more stable (more complex is more stable). 6 The law of simplicity When simplifying an embedded system, the interaction between the remaining functions of the system becomes stronger and stronger; when the function of the system is reduced, the probability of the success of the external intruder becomes more and more Big. 7 Conservation Law If you want to retain a system function in an embedded system, it is best to treat all other functions as "sacred and inviolable"; the system's functions are removed (extinct) or generated (invasive), which will definitely cause A major shift in the overall (cluster) structure and its dynamic performance. 8 Organizational rules The most important thing about the embedded Internet is not the characteristics of individual devices in the network, but the overall order that exists in the network, that is, the network order. In a highly redundant network, the single role of the device can no longer constitute the main factor affecting the overall performance of the system, and all the nodes and their connected features play a major role. 9 Network rules The nature of the network formed by a group of embedded Internet nodes interacting with a group of devices is often not significantly related to the nature of individual nodes. 10 message law Guaranteed search messages: It has a strict time-sensitive or basic normal system* requirement, and such messages require a time guarantee from the system. That is, once activities or tasks caused by such messages are executed, their time constraints will be guaranteed by the system during the determined time interval. Best-effort message: It has a typical soft time limit, that is, its time limit is defined by the time series of the activity or the task itself, and its time-limited requirements can be met without system guarantee. 11 Principles of immunity The embedded Internet's immune system should be a life-like mechanism. The immune function is a "feedforward" system, so the system should have the ability to foresee, so that it can be "small" poison attack (large) poison. . 12 Fusion Law The embedded Internet is a complex network that parses complex network structures with simple “compositionsâ€, allowing the system to interpret “whole†from isolated “compositions†or to allow the system to express “global†from “nodesâ€. . 13 Cost-effectiveness rule If System A is an embedded system of System B, ie B(a), then the cost of System A should not exceed 10% of System B's cost, and the cost of System B(a) should be greater than the sum of System A and System B costs. , the cost performance of system B (a) should be increased by 30% The soft LED strip can be cut and extended arbitrarily without affecting the light. FPC material is soft and can be bent, folded and wound at will, moving and stretching in three-dimensional space without breaking. LED strip light.RGB strip light,music RGB strip light.Bluetooth wifi RGB strip light SHENGYA LIGHTING TECHNOLOGY CO., LTD. , https://www.syalighting.com
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