ETC intelligent road side unit

Abstract

The invention discloses an ETC intelligent road side unit which is composed of a core control module, a transaction radio frequency module, an ETC positioning module, a millimeter wave positioning module and a satellite navigation module, and the core control module is connected with the transaction radio frequency module, the ETC positioning module, the millimeter wave positioning module and the satellite navigation module. The core control module is used for carrying out data interaction with the lane controller; according to the received vehicle positioning information of the ETC positioning module and the millimeter wave positioning module, track fitting is carried out; the transaction radio frequency module is used for receiving and sending radio frequency signals in the transaction process; the ETC positioning module is used for positioning the position of a vehicle by receiving a radio frequency signal of the vehicle-mounted unit; the millimeter wave positioning module is used for positioning the position of the vehicle through the emitted millimeter waves and echoes; and the satellite navigation module is used for acquiring the time of a satellite navigation system and checking the system time of the road side unit. An OBU-free vehicle is alarmed, an OBU-containing vehicle is accurately positioned, the signals are synchronized in a multi-antenna mode, and an ETC lane OBU transaction success rate is improved.

Description

technical field [0001] This application relates to the field of intelligent equipment, in particular to an ETC intelligent roadside unit. Background technique [0002] With the implementation of the overall project of canceling the provincial highway toll stations nationwide, the ETC toll system has been fully used in the entire highway toll network, and has also become the core means of highway toll collection, of which the ETC roadside unit is the key equipment. With the advancement of technology and the expansion of application requirements, the original roadside unit can no longer meet the application requirements of new scenarios. [0003] For roadside units, the current first technical solution is as follows: figure 2 As shown, it includes a core control module (100), connected to the lane controller, responsible for RSU (road side unit) workflow control and data interaction; radio frequency module (including antenna array) (200), responsible for modulation and demodu...

AI Technical Summary

Problems solved by technology

[0005] The first one is that the function is single, and the OBU (on-board unit) cannot be positioned to guide the transaction;

[0006] The second is the lack of synchronization when multiple antennas work

[0009] The first one is that only the OBU signal can be positioned, and no OBU vehicles (or OBU abnormal vehicles) cannot be positioned, and the positioning accuracy is greatly affected by the external environment;

[0010] The second is the lack of synchronization when multiple antennas work

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