Multi-time-base base station and construction method thereof
A construction method and base station technology, which are applied to multi-time base base stations and their construction fields, and can solve problems such as high deployment costs and excessive user budgets.
Active Publication Date: 2019-03-01
ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a multi-time base base station. Without adding base stations, it can solve the problem of high deployment costs in the prior art when there are many synchronization stages in TDOA-based positioning, which leads to user budget problems. The problem of exceeding the standard
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[0031] Embodiment: The multi-time base base station includes at least two independent time references, and correspondingly, the multi-time base base station is virtualized into at least two independent virtual base stations. The above technical solution is adopted to establish a multi-time base base station, that is, there are at least two independent time bases in a base station, so that the cost of TDOA-based positioning when there are many synchronization levels can be reduced without increasing the number of base stations; the multi-time base The main application scenario of the base station is a long and narrow one-dimensional positioning environment based on the time difference of arrival (TDOA). The base station receives the positioning signal of the tag, and transmits the time information of its arrival at the base station to the background solution center to complete the positioning solution based on TDOA. Realize that there are more than two time bases in a base statio...
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The invention relates to a multi-time-base base station and a construction method thereof. The multi-time-base base station comprises at least two independent time bases, and correspondingly, the multi-time-base base station is virtualized to at least two independent virtual base stations. The construction method of the multi-time-base base station comprises following steps: (1) an upper base station has a time base 1, and the base station has a time base 2; (2) the upper base station transmits a synchronous signal to the base station, and the base station monitors and receives the synchronoussignal of the upper base station and synchronizes a clock of the base station to the time base 1 of the upper base station by employing a synchronization algorithm; and (3) the local time base 2 of the base station is maintained, the synchronous signal is transmitted to an adjacent base station thereof, the base station becomes the multi-time-base station, and sub-base stations of the base station all perform synchronous conversion by regarding the time base 2 as the standard. The problem that the user budget exceeds the standard due to high laying cost based on TDOA positioning when the synchronization levels are many can be solved without increasing the base stations.
Description
Technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a multi-time base base station and a construction method thereof. Background technique [0002] TDOA positioning is a method of positioning using time difference. By measuring the time the signal arrives at the monitoring station, the distance to the signal source can be determined. Using the distance between the signal source and each monitoring station (the monitoring station is the center, the distance is the radius as a circle), the position of the signal can be determined. The positioning method based on TDOA technology measures time difference rather than absolute time. This method only requires synchronization between base stations and does not require strict time synchronization between base stations and tags. It is relatively easy to implement and is most suitable for ultra-wideband positioning systems. [0003] Due to the limited communication range of...
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IPC IPC(8): H04W56/00
CPCH04W56/001
Inventor 马琳琳张绘军信金龙许连杰肖岩张勇
Owner ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD