CN215834039U

CN215834039U - Road traffic signal auxiliary lamp based on CAN bus

Info

Publication number: CN215834039U
Application number: CN202121933057.9U
Authority: CN
Inventors: 吴树川; 纪培峰
Original assignee: Shantou Dingan Electronic Technology Co ltd
Current assignee: Shantou Dingan Electronic Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-15
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a CAN bus-based road traffic signal auxiliary lamp, which comprises an auxiliary lamp control system and a shell, wherein one side of the auxiliary lamp control system is electrically connected with a road traffic signal lamp, the auxiliary lamp control system is electrically connected with a signal lamp module, a 36VDC lightning arrester and a CAN channel module are arranged in the auxiliary lamp control system, the 36VDC lightning arrester and the CAN channel module are both electrically connected with the road traffic signal lamp, a 36VDC power supply and a CAN bus are connected from the road traffic signal lamp, the lighting data of the road traffic signal lamp is input into an MCU module from the CAN bus through a CAN channel, and the MCU module obtains the current lamp color required to be lighted through calculation and controls each lamp panel to be lighted or extinguished. The red light is not directly lightened according to the red light of a certain lamp group, but all the lamp groups bound by the current auxiliary lamp group are comprehensively calculated, and the red light is lightened only after all the lamp groups are lightened.

Description

Road traffic signal auxiliary lamp based on CAN bus

Technical Field

The utility model relates to the field of road traffic signal auxiliary lamps, in particular to a road traffic signal auxiliary lamp based on a CAN bus.

Background

Road traffic lights are a type of traffic light used to assign effective right of way to conflicting traffic flows to improve road traffic safety and road capacity. It is divided into: traffic control signals such as traffic lights, which show a single color, and signal lights with symbols indicating specific contents such as walking and stopping of pedestrians (indicated by arrows), a forward direction of a vehicle, and the like, are given.

The present application improves upon the prior art in which an existing road traffic signal auxiliary light has an input signal requirement of 220 VAC. When a communication type road traffic signal machine system based on the CAN bus is encountered, the road traffic signal lamp is driven by the CAN bus instead of the 220AC drive-by-wire signal. The existing road traffic signal auxiliary lamp cannot obtain an effective signal from the existing road traffic signal auxiliary lamp and cannot work normally.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a road traffic signal auxiliary lamp based on a CAN bus.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a CAN bus-based road traffic signal auxiliary lamp comprises an auxiliary lamp control system and a shell, one side of the auxiliary lamp control system is electrically connected with a road traffic signal lamp, the auxiliary lamp control system is electrically connected with a signal lamp module, the auxiliary lamp control system is internally provided with a 36VDC lightning protection device and a CAN channel module, the 36VDC lightning protection device and the CAN channel module are both electrically connected with the road traffic signal lamp, the output end of the 36VDC lightning protection device is provided with a plurality of groups of LED constant current driving modules, the output end of each LED constant current driving module is electrically connected with a signal lamp module, the 36VDC lightning protection device is electrically connected with a 36V to 3.3V power supply module, the output end of the 36V to 3.3V power supply module is electrically connected with an MCU module, the MCU module is electrically connected with the CAN channel module, and a CAN lightning protector and a CAN isolation transceiver are arranged in the CAN channel module; one side fixedly connected with signal lamp of casing, the erection column of the inner wall fixedly connected with symmetric distribution of casing, the outer wall sliding connection of erection column has the circuit board, circuit board and signal lamp electric connection, auxiliary lamp control system locates on the circuit board, the one end inner wall threaded connection that the circuit board was stretched out to the erection column has fastening bolt, fastening bolt stretches into the one end of erection column and rotates the movable block that is connected with erection column sliding connection, the equal fixedly connected with in both sides and erection column sliding connection's of movable block clamp plate, and clamp plate and circuit board butt, the apron is installed to the bottom of casing, and apron and fastening bolt threaded connection.

As a still further scheme of the utility model: one side butt that fastening bolt was kept away from to the movable block has the spring, and the other end and erection column inner wall fixed connection of spring, the spout of symmetric distribution is seted up to the both sides of erection column, and the inner wall and the clamp plate sliding connection of spout.

As a still further scheme of the utility model: one side of the circuit board, which is far away from the cover plate, is abutted with symmetrically distributed rubber supporting blocks, and the rubber supporting blocks are fixedly connected with the inner wall of the shell.

As a still further scheme of the utility model: the outside of signal lamp is equipped with the lamp shade, and the outer wall fixed connection of lamp shade and casing.

The utility model has the following beneficial effects:

1. in the utility model, a 36VDC power supply and a CAN bus are accessed from a road traffic signal lamp, the lighting data of the road traffic signal lamp is input into an MCU module from the CAN bus through a CAN channel, and the MCU module obtains the current lamp color to be lighted through calculation to control each lamp panel to be lighted or extinguished. The red light is not directly lightened according to the red light of a certain lamp group, but all the lamp groups bound by the current auxiliary lamp group are comprehensively calculated, and the red light is lightened only after all the lamp groups are lightened;

2. in the utility model, during installation, the circuit board is pushed into the shell to enable the mounting column to penetrate through the circuit board, then the cover plate is closed, the pressing plate enters the sliding groove, the fastening bolt is rotated to enable the fastening bolt to rotate and enter the mounting column, the fastening bolt enables the movable block to move and further drives the pressing plate to move, the pressing plate is enabled to extrude and fix the circuit board, the circuit board is installed in a flexible connection mode through the arrangement of the spring and the rubber supporting block, and the circuit board is prevented from being damaged during installation.

Drawings

FIG. 1 is a schematic structural diagram of a road traffic signal auxiliary lamp based on a CAN bus according to the present invention;

FIG. 2 is a system block diagram of a road traffic signal auxiliary lamp based on a CAN bus according to the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Illustration of the drawings:

the auxiliary lamp control system comprises an auxiliary lamp control system 1, a 36VDC lightning protection device 2, a 36V-to-3.3V power supply module 3, a CAN channel module 4, an MCU module 5, an LED constant current driving module 6, a signal lamp module 7, a road traffic signal lamp 8, a shell 9, a lamp shade 10, a signal lamp 11, a rubber supporting block 12, a mounting column 13, a fastening bolt 14, a cover plate 15, a sliding groove 16, a circuit board 17, a movable block 18 and a pressing plate 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the utility model provides a CAN bus-based road traffic signal auxiliary lamp, which comprises an auxiliary lamp control system 1 and a housing 9, wherein one side of the auxiliary lamp control system 1 is electrically connected with a road traffic signal lamp 8, the auxiliary lamp control system 1 is electrically connected with a signal lamp module 7, a 36VDC lightning arrester 2 and a CAN channel module 4 are arranged in the auxiliary lamp control system 1, the 36VDC lightning arrester 2 and the CAN channel module 4 are both electrically connected with the road traffic signal lamp 8, the output end of the 36VDC lightning arrester 2 is provided with a plurality of groups of LED constant current driving modules 6, the output end of the LED constant current driving module 6 is electrically connected with the signal lamp module 7, the 36VDC lightning arrester 2 is electrically connected with a 36V to 3.3V power module 3, the output end of the 36V to 3.3V power module 3 is electrically connected with an MCU module 5, and the MCU module 5 is electrically connected with the CAN channel module 4, a CAN lightning protector and a CAN isolation transceiver are arranged in the CAN channel module 4; a signal lamp 11 is fixedly connected to one side of a shell 9, symmetrically distributed mounting columns 13 are fixedly connected to the inner wall of the shell 9, a circuit board 17 is slidably connected to the outer wall of the mounting column 13, the circuit board 17 is electrically connected with the signal lamp 11, an auxiliary lamp control system 1 is arranged on the circuit board 17, a fastening bolt 14 is in threaded connection with the inner wall of one end, extending out of the circuit board 17, of the mounting column 13, a movable block 18 is rotatably connected with one end, extending into the mounting column 13, of the fastening bolt 14, the mounting column 13 is slidably connected with a pressing plate 19, the pressing plate 19 is abutted against the circuit board 17, a cover plate 15 is arranged at the bottom of the shell 9, the cover plate 15 is in threaded connection with the fastening bolt 14, a spring is abutted against one side, away from the fastening bolt 14, of the movable block 18, the other end of the spring is fixedly connected with the inner wall of the mounting column 13, symmetrically distributed sliding grooves 16 are formed in two sides of the mounting column 13, and the inner wall of the chute 16 is connected with the pressing plate 19 in a sliding manner, one side of the circuit board 17 far away from the cover plate 15 is abutted with the rubber supporting blocks 12 which are symmetrically distributed, the rubber supporting blocks 12 are fixedly connected with the inner wall of the shell 9, the lamp shade 10 is arranged outside the signal lamp 11, and the lamp shade 10 is fixedly connected with the outer wall of the shell 9.

The working principle is as follows:

in the application, the road traffic signal lamp 8 is connected to the 36VDC power supply and the CAN bus, the lighting data of the road traffic signal lamp is input into the MCU module 5 through the CAN channel from the CAN bus, the MCU module 5 obtains the current lamp color required to be lighted through calculation, and each lamp panel is controlled to be lighted or extinguished. The red light is not directly lightened according to the red light of a certain lamp group, but all the lamp groups bound by the current auxiliary lamp group are comprehensively calculated, and the red light is lightened only after all the lamp groups are lightened;

the number and the positions of the arrow lamp panels can be freely combined and installed according to actual needs;

in this application, during the installation, make erection column 13 run through circuit board 17 in pushing into casing 9 with circuit board 17, later closing cover plate 15, and make in clamp plate 19 gets into spout 16, rotate fastening bolt 14, make fastening bolt 14 rotate and get into in erection column 13, fastening bolt 14 makes movable block 18 remove and then drive clamp plate 19 and remove, make clamp plate 19 extrude circuit board 17 fixedly, make the installation of circuit board 17 be flexonics through setting up of spring and rubber support piece 12, damage when avoiding circuit board 17 to install.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a road traffic signal auxiliary lamp based on CAN bus, includes auxiliary lamp control system and casing, its characterized in that: one side of the auxiliary lamp control system is electrically connected with a road traffic signal lamp, the auxiliary lamp control system is electrically connected with a signal lamp module, a 36VDC lightning arrester and a CAN channel module are arranged in the auxiliary lamp control system, the 36VDC lightning arrester and the CAN channel module are both electrically connected with the road traffic signal lamp, the output end of the 36VDC lightning arrester is provided with a plurality of groups of LED constant-current driving modules, the output end of each LED constant-current driving module is electrically connected with the signal lamp module, the 36VDC lightning arrester is electrically connected with a 36V-to-3.3V power module, the output end of the 36V-to-3.3V power module is electrically connected with an MCU module, the MCU module is electrically connected with the CAN channel module, and the CAN channel module is internally provided with a CAN lightning arrester and a CAN isolation transceiver; one side fixedly connected with signal lamp of casing, the erection column of the inner wall fixedly connected with symmetric distribution of casing, the outer wall sliding connection of erection column has the circuit board, circuit board and signal lamp electric connection, auxiliary lamp control system locates on the circuit board, the one end inner wall threaded connection that the circuit board was stretched out to the erection column has fastening bolt, fastening bolt stretches into the one end of erection column and rotates the movable block that is connected with erection column sliding connection, the equal fixedly connected with in both sides and erection column sliding connection's of movable block clamp plate, and clamp plate and circuit board butt, the apron is installed to the bottom of casing, and apron and fastening bolt threaded connection.

2. The CAN bus-based road traffic signal auxiliary lamp according to claim 1, wherein: one side butt that fastening bolt was kept away from to the movable block has the spring, and the other end and erection column inner wall fixed connection of spring, the spout of symmetric distribution is seted up to the both sides of erection column, and the inner wall and the clamp plate sliding connection of spout.

3. The CAN bus-based road traffic signal auxiliary lamp according to claim 1, wherein: one side of the circuit board, which is far away from the cover plate, is abutted with symmetrically distributed rubber supporting blocks, and the rubber supporting blocks are fixedly connected with the inner wall of the shell.

4. The CAN bus-based road traffic signal auxiliary lamp according to claim 1, wherein: the outside of signal lamp is equipped with the lamp shade, and the outer wall fixed connection of lamp shade and casing.