Application of Bai-link Industrial Switch in Highway 5.8GHz Free Flow Signage Point Lane System

item description

        After several years of hard work, the "One Network" was officially implemented on June 29, 2014 for highway network charging in Guangdong Province. The "one network" for highway networked toll collection in Guangdong Province refers to the adoption of a combined toll technology compatible with electronic non-parking toll (ETC) and manual semi-automatic toll collection, integrating all highways in the province into a unified closed toll collection system. Through vehicle ambiguous path identification technology,"unified charging and system splitting" are implemented for each toll road operation and management unit, realizing the high-standard operating needs of "precise charging and precise splitting."

        For this purpose, a company has developed a "5.8G DSRC free flow marking point lane system". The system adopts a two-layer architecture, that is, the front-end identification point system is connected to the supporting management system of the road section center to complete data interaction between the two to realize identification flow aggregation and front-end monitoring and management functions; in addition, the system uses a single-row portal and The layout plan of dual ordinary antennas, combined with the two-stage/continuous collaborative processing electronic label transaction processing control method, solves the problem of path identification processing for ETC vehicles in free flow.

system requirements

 ·Real-time transmission: It can be uploaded to the road toll center system in real time;

 ·High-speed communication: Mainline high-definition bayonet, RFID, ETC identification points, etc. all need to be connected to the communication network;

 ·Strong stability: The product supports 24-hour uninterrupted trouble-free operation and supports wide temperature work;

 ·Easy to maintain: supports remote troubleshooting, small size;

scheme design

        The ETC marking point system consists of RSU, high-definition network camera, industrial controller, lane controller, display terminal, vehicle detector, detection coil, marking point software and auxiliary facilities, etc., and is installed at necessary places on the road network. In terms of the choice of communication methods, you can choose: 1) wired transmission. Connect to the communication transmission channel of nearby outfield equipment, or lay optical cables to nearby communication rooms such as toll stations and service areas;2) Through wireless transmission (GPRS/CDM).

        Bai-link provides the high-speed industrial Ethernet switch BL-IES208 in this system. The BL-IES208 is an ultra-thin Gigabit Industrial Ethernet switch that provides 8 10/100/1000Base-T(X) ports. The rich port configuration can connect outfield identification units, high-definition network cameras, high-definition bayonet all-in-one machines and ETC identification points along the road to the road toll center system. In addition, the system can monitor and alarm abnormal status of outfield equipment, software and communication at the identification point based on the equipment status information uploaded by the ETC identification point identification processing system.

        BL-IES208 supports redundant power inputs, relay fault output alarm systems, and a wide temperature of-40 to 85 ℃, which ensures stable operation of the product in the environment and ensures that the system will not experience data loss under network, power distribution abnormalities, etc., thereby ensuring the integrity of the data. The BL-IES208 series is small in size, only 36 (width) x 124.9 (depth) x 154.3(height) mm. It supports rail installation and can also be effectively installed in existing cabinets without taking up too much space. It has a very good price/performance ratio.

At present, this "5.8G DSRC free flow marking point lane system" has been applied to Shuiguan Expressway, Yanjiang Expressway, Guanshen Expressway, Changhu Expressway, Huiguan Expressway, Guanghe Expressway, etc. in Guangdong Province. Bai-link products are operating well so far.

system architecture diagram

Why choose Bai-link industrial-grade switches?

 ·Switch is small in size, easy to install, and cost-effective

 ·Full Gigabit communication network, supporting video and other big data transmission

 ·Adopt industrial-grade design and support wide temperatures of-40 to 85 ℃

 · MTBF of more than 60000 hours and low failure rate