Subscription type device access method based on low power consumption
A device access, low-power technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of limited embedded device resources, inability to use embedded devices, limited power consumption, etc., to reduce access , the effect of reducing power consumption and reducing the use of
Active Publication Date: 2014-11-26
EASTERN COMM
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Therefore, the above implementation methods cannot be applied to embedded devices at all, because embedded devices have limited resources and limited power consumption.
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[0029] like figure 1 , low-power subscriptions are internally divided into time adjustment and subscription according to functions. Time adjustment is used to "align" the expiration time of each user request. Use timer resources as little as possible. Timer resources include, but are not limited to, software timers, hardware timers, or resources with timing functions provided by the operating system. Subscription completes device registration, user request processing and cycle timeout processing, device registration completes the registration function of device information, user request processing completes saving of user request information, response to user subscription and call for time adjustment, cycle timeout processing completes for users Feedback on subscription information.
[0030] Device registration is provided to the device registration function that supports the subscription function. This function needs to provide enough flexibility to support different subscr...
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The invention relates to a subscription type device access method based on low power consumption. The subscription type device access method based on low power consumption comprises the steps of subscription processing and time adjusting processing, wherein (1) subscription processing comprises the steps of device registration, user request processing and cycle overtime processing; (2) time adjusting processing comprises the steps of processing of prolonging time cycles, deleting the time cycles and modifying the time cycles and processing of timer overtime. According to the subscription type device access method based on low power consumption, user request nodes are established for corresponding users through a subscription mechanism according to subscription requests of the users to target devices, the user request nodes are added in user request management chain tables in the corresponding devices, and cycle nodes are established for the corresponding user request nodes and are added in cycle node management chain tables in the corresponding time nodes; during time adjustment, multiple timers with the identical cycles are merged, using of resources of the cycle timers is reduced, access to the devices at different time points is reduced, a CPU can be in deep dormancy, all access demands of the users to the devices are completed when the CUP is awaken, and thus power consumption is reduced.
Description
technical field [0001] The invention relates to a method for accessing subscription-type equipment based on low power consumption. Background technique [0002] In embedded development, there are many applications that need to manage peripheral devices and require periodic access. The usual way is that each module or application program is managed independently, and polling is generally used to access the devices they need. For periodic acquisition, the traditional implementation scheme is to use the timer provided by the operating system to adopt a cycle timing query method. Under the traditional solution, it will not be conducive to the realization of low power consumption of the embedded system, and it will also put a huge pressure on the timer resources; using this method not only wastes system resources, but also makes it difficult for the embedded device to enter a good sleep. This leads to waste of power consumption and increases the cost of power requirements. For ...
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Login to View More IPC IPC(8): G06F17/30
CPCG06F1/3243Y02D10/00
Inventor 宫尚雷翔金忠鹤
Owner EASTERN COMM