Positioning device and method
A positioning device and a technology for assisting positioning, applied in positioning, measuring devices, instruments, etc., can solve the problems that the positioning device cannot provide stable and reliable positioning information, cannot effectively shorten the positioning time, and cannot obtain network signals, and can update the coordinates in real time. information, stable and reliable positioning information, the effect of shortening time
Inactive Publication Date: 2012-10-10
MSTAR SOFTWARE R&D (SHENZHEN) LTD +1
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Problems solved by technology
However, for the vast majority of GPS devices that cannot download auxiliary positioning data through the network, it often needs to wait for the time required for cold start
[0005] However, downloading assisted positioning data through the network has already constituted an existing use restriction. When facing a weak network signal or even being unable to obtain the network signal, the positioning device cannot provide stable and reliable positioning information.
And the cost of booting time will also cause inconvenience
In other words, in the above-mentioned various methods, it is impossible to effectively shorten the positioning time and improve the efficiency
Method used
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[0023] Please also see figure 1 as well as figure 2 , figure 1 is a functional block diagram of a positioning device 1 according to a specific embodiment of the present invention, and figure 2 then draw figure 1 The schematic diagram of communication between the positioning device 1 and other positioning devices 3 and 4 in . As shown in the figure, the positioning device 1 includes a wireless communication module 10 , a storage unit 12 , a positioning module 14 and a control unit 16 . In addition, the positioning device 3 stores valid auxiliary positioning data and positioning results, while the positioning device 4 does not store any auxiliary positioning data or stores invalid auxiliary positioning data. Generally speaking, the auxiliary positioning data has a certain validity period, and once the validity period passes, the auxiliary positioning data becomes invalid.
[0024] The wireless communication module 10 can generate a detection signal to detect whether there...
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The invention discloses positioning device and method which can provide stable and reliable positioning information and shorten time for positioning. The positioning device comprises a wireless communication module, a storage unit, a positioning module and a control unit, wherein the wireless communication module is used for generating a detecting signal; the storage unit is coupled with the wireless communication module and used for storing auxiliary positioning data; the positioning module is coupled with the storage unit and used for generating coordinate information according to a satellite signal and the auxiliary positioning data; the control unit is coupled with the wireless communication module; the storage unit and the positioning module are used for judging whether the auxiliarypositioning data is effective or not, and if the auxiliary positioning data is ineffective, the control unit controls the wireless communication module to generate the detecting signal.
Description
technical field [0001] The present invention relates to a positioning device and method, in particular to a positioning device and method capable of receiving effective auxiliary positioning data and / or positioning results from other positioning devices as its own coordinate information. Background technique [0002] The global positioning system (GPS) is a satellite navigation system in a medium-distance circular orbit. The general global positioning system consists of 24 GPS satellite groups operating in space, respectively operating in six orbital planes, to perform triangulation. And each satellite transmits signals back to the GPS terminal all the time, these signals contain coordinates, time and other parameters, and these signals are the key to accurately locate the coordinates. [0003] Therefore, the assisted global positioning system (AGPS) has been developed, which can use the signal sent by the mobile phone base station to cooperate with the traditional GPS sate...
Claims
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IPC IPC(8): G01S5/02
Inventor 范永祺
Owner MSTAR SOFTWARE R&D (SHENZHEN) LTD