A Bluetooth-based parking lot entry and exit control method and system

Abstract

The invention discloses a parking lot entrance / exit control method and a parking lot entrance / exit control system based on Bluetooth. Beacon devices, which are respectively disposed on an entrance gate and an exit gate of a parking lot, are used as broadcasting devices to transmit broadcasting information in iBeacon form based on the Bluetooth 4.0 technology. A Bluetooth mobile terminal disposed in a vehicle is used to receive the Bluetooth broadcasting information, and is used to calculate the distance between the vehicle and a gate rod, and when the vehicle is close to the gate rod, the Bluetooth mobile terminal disposed in the vehicle is used to establish a BLE connection with a Bluetooth connecting device disposed on the gate for data exchange. An industrial control host is used to determine whether the gate rod can be lifted by combing with a Bluetooth connecting signal, a ground sensing signal, a microwave sensing signal, and other signals, and is used to calculate a number of residual parking stalls, and then the result is output and displayed by a display screen. The users can enter and leave the parking lot quickly without stopping the vehicle by using the Bluetooth function of the mobile terminal, and therefore the passing rate of the vehicle is effectively improved, the identification precision is high, and the intelligent parking functions such as identity authentication, parking fee calculation, and electronic payment, and so on are effectively supported by adopting the anti-counterfeiting and encrypted Bluetooth data exchange function.

Description

technical field [0001] The invention relates to the technical field of intelligent control, in particular to a method and system for controlling the entry and exit of a parking lot based on Bluetooth. Background technique [0002] With the increase of vehicles, the problem of difficult parking has appeared in large and medium-sized cities at present. Intelligent parking lot is an important part of intelligent transportation system ITS. Its core is the use of information technology, digital communication transmission technology, computer technology, electronic control technology and System integration and other high-tech combined with the needs of parking lot fee management, provide a high-efficiency management method, so that users can enter or leave the parking lot in the shortest time, thereby improving the management level of the parking lot and achieving higher economic efficiency. benefits and good social benefits. [0003] In order to make the vehicle enter the parkin...

AI Technical Summary

Problems solved by technology

In this method, Bluetooth connection information of the entry and exit gates may be sent by mistake from multiple Bluetooth terminals or Bluetooth terminals that pass by by chance and meet the basic judgment conditions. And only respond to the entry and exit requirements of the vehicle and implement release. However, due to the large error of Bluetooth ranging and the influence of the operating platform carried by the Bluetooth mobile terminal, it is necessary to improve the ranging accuracy by optimizing the ranging algorithm and antenna placement. precision

2. Place the Bluetooth mobile terminal in the car and transmit the broadcast, and the Bluetooth server at the gate receives the broadcast and uses the signal strength RSSI (Received Signal Strength Indicator) value to calculate the distance from the Bluetooth mobile terminal to the Bluetooth server to determine the opening time, but This method makes the bluetooth mobile terminal only have the function of sending information but not receiving and storing information. The charging equipment depends on the normal operation of the parking lot management computer and cannot realize offline operation.

Moreover, iOS devices around the world can be the transmitter and receiver of iBeacon, but Android devices after Jelly Bean 4.3 can only be the receiver of Beacon. Function

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