Tag scheduling method in IoT positioning system

A technology of positioning system and scheduling method, which is applied in the direction of instruments, sensing record carriers, computer components, etc., can solve the problems that tags cannot obtain a large amount of resources at one time, and the total refresh rate is fixed, so as to save power, increase tag capacity, and improve The effect of reaction speed

Inactive Publication Date: 2015-10-21
NANJING UNIV +2
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Problems solved by technology

At present, the more commonly used scheduling method is the timing automatic scheduling method, that is, the time slice length of the radio frequency sensor is fixed, and the number of time slices is fixed, but the disadvantages of this method are also obvious. The refresh rate is fixed, and the total refresh rate refers to the length of the time slice multiplied by the number of time slices

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  • Tag scheduling method in IoT positioning system
  • Tag scheduling method in IoT positioning system
  • Tag scheduling method in IoT positioning system

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and given embodiments, but is not limited thereto.

[0027] like figure 1 , 2 , 3, and 4, a scheduling method for tags in an IoT positioning system, including radio frequency sensors 1 and several tags 2 1 ,2 2 ,…2 n-1 ,2 n , the number of labels 2 1 ,2 2 ,…2 n-1 ,2 n Connect with wireless radio frequency sensor 1 respectively, wherein, n is a positive integer; the plurality of tags 2 1 ,2 2 ,…2 n-1 ,2 n The dispatch method is:

[0028] a, the wireless radio frequency sensor 1 stores a scheduling schedule, which divides 1s into 1024 equal time slices, each time slice is 976us, and any tag 2 in a time slice k Complete a data refresh, where 1≤k≤n, and k is a positive integer;

[0029] b, the number of labels 2 1 ,2 2 ,…2 n-1 ,2 n There are three scheduling modes, which are divided into active scheduling mode, passive scheduling mode and blocking scheduling...

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Abstract

The invention relates to a scheduling method for labels in an IOT (Internet of Things) positioning system. According to the method, the labels are in wireless communication connection with a wireless radio-frequency sensor; a scheduling timetable is stored in the wireless radio-frequency sensor; each label has three scheduling modes, namely an active scheduling mode, a passive scheduling mode and a congestion type scheduling mode; and the three different scheduling modes are switched seamlessly according to the real-time work conditions of the labels. Through the method, the number of scheduled labels in a unit is increased, and the advantages of high quality, high efficiency and the like are achieved.

Description

technical field [0001] The invention specifically relates to a tag scheduling method in an IoT positioning system, with the purpose of scheduling tags with maximum efficiency and increasing the number of schedulable tags in one unit. Background technique [0002] Indoor IoT positioning technology is a high-tech in the world. At present, for domestic companies involved in this field, how to increase the number of tags that can be accommodated in a unit is an urgent research direction and an important indicator of competition among companies. For a system with a small capacity, it can only be compensated by increasing the number of units. The capacity of the tag directly determines the number of targets that can be simultaneously positioned and tracked in a unit; in actual project applications, this index also directly determines the quotation of the project. [0003] The general way to increase tag capacity is to study tag scheduling. A good scheduling method can effectively...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00
Inventor 李俊焦竹青王宇飞马正华周炯如宦娟荣国平张明坤仲成成
Owner NANJING UNIV
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