A method for finding a car in an underground garage
An underground garage and car-finding technology, applied in the field of low-power wide-area network, to avoid inconvenience and overcome weak environmental adaptability
Active Publication Date: 2019-08-30
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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[0025] Such as figure 1 , 2 As shown in and 3, an underground garage car-finding system includes a handheld module and a vehicle-mounted module. The handheld module sends a system wake-up signal, and the vehicle-mounted module sends a response signal after receiving the wake-up signal. Two-way communication is performed between the handheld module and the vehicle-mounted module. The handheld module includes a handheld wireless transceiver, a handheld micro-control unit, indicator lights, buttons and batteries. The handheld wireless transceiver communicates with the antenna, and the handheld battery is connected to the handheld micro-control unit and the handheld wireless transceiver. The unit and the handheld wireless transceiver provide power, the button is connected with the handheld micro-control unit, and the handheld micro-control unit is manually controlled; the vehicle-mounted module includes the vehicle-mounted wireless transceiver, the vehicle-mounted micro-control un...
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The invention discloses an underground garage vehicle searching system and method. A device comprises a handheld module and a vehicle-mounted module; bidirectional communication is carried out between the handheld module and the vehicle-mounted module; and the method particularly comprises the steps that: the handheld module is used for sending an awakening request to the vehicle-mounted module after a user triggers a vehicle searching button; after receiving an awakening signal, the vehicle-mounted module sends a response signal, and turns on a flashing lamp; after receiving the awakening response signal of the vehicle-mounted module, the handheld module carries out T0 parameter correction; and the vehicle-mounted module sends a response confirmation signal after T0 parameter correction, after the handheld module receives the signal, the color of an indication lamp is changed, the user normally goes forwards, the vehicle-mounted module judges whether the user is close to or far away by reach time difference of received period signals, and feedback is carried out to the handheld module by a response signal. According to the underground garage vehicle searching system and method disclosed by the invention, reference coordinates do not need to be prospected and set in advance, and a vehicle owner is guided to select a correct forward moving direction when entering an underground garage to search a vehicle.
Description
technical field [0001] The invention relates to the technical field of low power consumption wide area network, in particular to a method for finding a car in an underground garage. Background technique [0002] In today's society, the living environment is becoming more and more complex, and the underground garage in the city center is getting bigger and bigger. In general life, car owners determine the location of the car by listening to the sound of the buzzer and identifying the flickering of the lights to realize the process of finding the car. This method of finding a car is only effective if it is close to the car. Nowadays, there are so many underground parking garage exits in large shopping malls. Even if you remember the number, you often can’t tell the direction according to the distribution map of the parking lot. [0003] Mainstream positioning technologies such as GPS, base station positioning, Bluetooth, zigbee, and WiFi are lacking in transmission distance,...
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IPC IPC(8): H04B1/3822H04B1/3827G01S5/02
Inventor 蒋其友田崇峰胡晓进薛小松崔明
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY