A road entry gate controller

Abstract

The invention relates to a road entryway controller whose hardware includes an embedded computer, a binding post row, an industrial power source, a relay, an optical terminal machine, an optical cable terminal box; the embedded computer is arranged in a processed cabinet, an outside device connection communication control line is firstly connected from outside of the cabinet onto the post row in the cabinet, a passing lamp and a signal lamp control line is then connected from the post row to the corresponding relay, and connected to an I / O sheet card via the relay, an information plate and a vehicle inspection machine are directly connected from the host row to a RS485 joint of a host, a manual operation device is not fixed-connected to device, and only connected to a communication port of an embedded computer panel only when being debuged and maintained, the embedded computer is connected to the optical terminal machine via network lines, the optical terminal machine is connected with the optical cable terminal box via optical fibers and finally accessed in INTERNET so as to be communicated with a middle-controlled monitor. The sofeware frame of the invention and a control algorithm desired in realizing, determine the stability, and high efficiency operation performance of the whole system.

Description

technical field [0001] The invention relates to a road entrance ramp controller, which belongs to the technical field of automatic control of transportation. Background technique [0002] Urban expressway is the artery of urban economic development. [0003] The transportation industry in foreign countries developed relatively early, and its ramp control was also carried out in scientific research and practical application earlier. The construction of urban expressways in developed countries began in the 1950s. The United States implemented on-ramp control on the Eisenhower Expressway in Chicago in the 1960s. Subsequently, cities such as Los Angeles, Seattle, and Phoenix in the United States successively implemented ramp control on urban expressways. Moreover, ramp control in foreign countries has experienced a process from single-point control to overall network control, which has played a good role in alleviating traffic congestion. [0004] Domestic research on traffic...

AI Technical Summary

Problems solved by technology

In 2006, the Central Ring Road, which was expected to improve the traffic saturation of elevated roads, opened to traffic, but only one month later, some sections of its roads experienced serious congestion

[0014] Therefore, the expressway is often congested during peak or even off-peak periods, and it is difficult to ensure the continuity of traffic. Vehicles run fast and sometimes slow, and the expressway system is no longer "fast". The entrance ramp must be controlled

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