RSSI-based digital key unlocking terminal positioning method and system
A technology for unlocking terminals and digital keys, which is applied in the field of digital key unlocking and positioning, which can solve the problems of low broadcast positioning RSSI sampling rate and inability to achieve high-precision positioning effects, so as to improve user experience, increase RSSI sampling rate, and connect fast effect
Pending Publication Date: 2021-08-24
YUANFENG TECH CO LTD
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Problems solved by technology
This digital key system uses three broadcast channels to send positioning broadcasts. Since the fastest broadcast speed is 100ms / time, the RSSI sampling rate of broadcast positioning is low, and high-precision positioning effects cannot be achieved.
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[0031] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0032] This embodiment discloses a digital key unlocking terminal positioning method based on RSSI. The unlocking terminal can establish a communication connection with the controlled terminal through wireless digital signals to change the working state of the electronic lock installed on the controlled terminal. The positioning method uses For positioning the unlocked terminal, in order to improve the positioning accuracy, such as figure 1 , the targeting method includes:
[0033] S1: Detect whether the unlocked terminal establishes a communication connection with the controlled terminal;
[0034] S2: After confirming that the unlocked terminal establishes a communication connection with the controlled terminal, a connection parameter is...
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In order to achieve the purpose, the invention discloses an RSSI-based digital key unlocking terminal positioning method and system. An unlocking terminal is used for establishing a communication connection with a controlled end through a wireless signal to change the working state of an electronic lock installed on the controlled end. The positioning method comprises the following steps: detecting whether the unlocking terminal establishes a communication connection with the controlled end; if so, through the controlled end, monitoring the data of the data channel of the unlocking terminal according to the connection parameter, and calculating the signal intensity values of the obtained data signals; and calculating the position of the unlocking terminal according to the plurality of signal intensity values obtained by the controlled end. The controlled end monitors the data channel of the unlocking terminal in a link monitoring mode and calculates the signal intensity values according to the data signals sent by the data channel, so that compared with the sampling rate of a traditional broadcast signal, the RSSI sampling rate is greatly improved, and the positioning precision of the unlocking terminal is effectively improved.
Description
technical field [0001] The present invention relates to the technical field of digital key unlocking and positioning, in particular to an RSSI-based digital key unlocking terminal positioning method and system. Background technique [0002] With the development of technology, smart keys have gradually transformed from traditional physical keys to digital keys. Carriers of digital keys are usually products such as mobile phones, bracelets, and watches. Users no longer need to carry physical keys, they only need to activate the digital key on the mobile APP to unlock and start the vehicle, and have more functions than physical keys, such as sharing and other functions. [0003] At present, the common digital keys are divided into the following types based on radio frequency signals: cloud keys, Bluetooth keys, NFC keys, UWB keys, etc. Based on the product form, there are: smart wearables such as mobile phones, watches, bracelets, and glasses. [0004] Nowadays, conventional...
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Login to View More IPC IPC(8): G07C9/00H04W4/02
CPCG07C9/00309H04W4/025
Inventor 刘文财赵元波钟礼兰周平
Owner YUANFENG TECH CO LTD