Communication type traffic signal red light detector

Abstract

The invention discloses a communication type traffic signal red light detector which comprises a shell and an electronic circuit board. The communication type traffic signal red light detector is characterized in that a red light signal detection unit (1), a wave shaping unit (2), a single chip microcomputer processing unit (3), an RS485 communication unit (4), an output indicator unit (5) and a power supply unit (6) are arranged on the electronic circuit board. The red light signal detection unit conducts rectification and current-limiting on the current of a red light signal, the red light signal is added to a photoelectric coupler, output to the wave shaping unit where capacitor filtering and inverter shaping are conducted, and then input into the single chip microcomputer processing unit, the single chip microcomputer processing unit conducts detection and data processing on the red light signal, the digital signal is input into the RS485 communication unit through an UART serial port and output to a shoot unit, and the shoot unit is started to conduct picture shoot and recording on vehicles which run the red light and break rules and regulations. The communication type traffic signal red light detector has the advantages that that eight or more paths of red light signals can be detected at the same time, installation, using and maintenance are convenient, work stability is good, and service life is long.

Description

technical field [0001] The invention relates to a detection device for traffic signal lamps, in particular to a communication-type red light detector for traffic signals. Transmit the working status signal of the red light signal on or off to the capture unit of the red light automatic recording system, so that the capture unit can accurately and timely start the shooting action, and automatically record and shoot the illegal vehicles running the red light. Background technique [0002] The traffic signal red light detector commonly used in the market is a relay-type traffic signal red light detector, and its structure is mainly composed of a 12V power supply module and a relay component. Each 220V red light signal of the road traffic is connected to the wire package of different relays in the relay assembly, and the 12V power supply of the power module is connected to one of the two reed pins on each relay switch, and the other pin is connected with a wire Connect to the c...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a communication-type traffic signal red light detector for the defects or deficiencies in the above-mentioned prior art. Inconvenient, poor working stability, short service life and other defects

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