System and method for real-time location of indoor objects
An indoor object and real-time positioning technology, applied in the field of positioning and navigation, can solve the problems of inability to achieve precise positioning and navigation, high power consumption of WIFI access points, and restrictions on widespread use
Active Publication Date: 2022-02-08
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology
Due to the adoption of the above two technologies, the traditional indoor location navigation system has obvious usage scene defects. One is that the indoor (especially in the basement) GPS signal is weak or absent, and the longitude and latitude information of the object cannot be accurately positioned; the other is The WIFI access point has high power consumption and limited coverage, and large-scale deployment wastes energy, which runs counter to energy conservation and emission reduction, and a green earth; the third is that the current indoor positioning accuracy is not enough to achieve accurate positioning and navigation
All of the above limit the widespread use of traditional indoor location navigation systems, and also seriously affect the actual experience of users during use
Method used
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Embodiment
[0066] In this embodiment, the real-time positioning of the position of the driving car in the underground parking lot is used as an example. The car is equipped with a vehicle-mounted Bluetooth module, which supports Bluetooth 5.1 and above standards. When entering the entrance of the underground parking lot, the car turns on the Bluetooth Module communication, the position positioning device of the underground parking lot obtains the mac address information of the vehicle-mounted Bluetooth module of the car, and registers and saves it.
[0067] as attached figure 1 As shown, it is a composition diagram of the indoor object position real-time positioning system of the present invention, that is, the underground parking lot position positioning device of the present embodiment:
[0068] Wherein, 101 refers to a fixed-position Bluetooth positioning node device, and the coordinate position information of the 101 device is configured and saved by the 301 position positioning devi...
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The invention relates to the field of positioning and navigation, in particular to a system and method for real-time positioning of indoor objects, which can realize high-precision positioning of indoor objects with Bluetooth modules when the indoor GPS signal is weak or there is no GPS signal. position. The system for real-time positioning of indoor objects in the present invention includes a Bluetooth positioning node device and a position positioning device, the Bluetooth positioning node device is distributed indoors, and the Bluetooth positioning node device is wirelessly connected to the position positioning device; the Bluetooth positioning node device is used To measure the real-time distance of objects within its measurement range, and report the measured distance and position information to the position positioning device; the position positioning device adopts multipoint according to the distance position information and the Bluetooth module mac address information of the object to be positioned Distance matrix positioning, calculate the real-time position information of indoor objects to be positioned. The invention is suitable for high-precision positioning of indoor objects with bluetooth modules.
Description
technical field [0001] The invention relates to the field of positioning and navigation, in particular to a system and method for real-time positioning of indoor object positions. Background technique [0002] Indoor location navigation systems are widely used in people's daily travel activities. Traditional indoor location navigation systems are mainly realized by GPS positioning and navigation technology plus WIFI-assisted positioning and navigation technology. GPS positioning and navigation technology can obtain the location of objects The longitude and latitude information, its location accuracy is between ten meters and one hundred meters, and the location accuracy of the WIFI access point for the surrounding WIFI access devices can reach the meter level. Due to the adoption of the above two technologies, the traditional indoor location navigation system has obvious usage scene defects. One is that the indoor (especially in the basement) GPS signal is weak or absent, an...
Claims
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IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 梁应龙
Owner SICHUAN CHANGHONG ELECTRIC CO LTD