CN204087511U

CN204087511U - Self-adapting traffic signal countdown display device

Info

Publication number: CN204087511U
Application number: CN201420512693.8U
Authority: CN
Inventors: 文建斌; 许明洪; 许明荣; 蒋志国
Original assignee: HANGZHOU PULE TECHNOLOGY Co Ltd
Current assignee: HANGZHOU PULE TECHNOLOGY Co Ltd
Priority date: 2014-09-05
Filing date: 2014-09-05
Publication date: 2015-01-07
Anticipated expiration: 2024-09-05

Abstract

A kind of self-adapting traffic signal countdown display device, its technical characteristics is that it comprises system scheduling module and connects power management module and light color detection module and trigger pip detection module, count down information receiver module, display count down information module respectively; Count down information receiver module connects wireless module, mixed-media network modules mixed-media, power line carrier, PLC module, RS-485 communication module respectively.The utility model communication pattern supports wireless mode, carrier mode and wired communication modes, provides flexible communications transmission mode; Trigger the wide region trigger pulse supporting 100ms ~ 300ms, support the trigger pip that Multiple Type teleseme exports; Support under mode of learning that the monocycle learns display mode; Display module not only supports stroke bar single digit, dual number digits and multidigit display mode, also supports lattice display module, can support simple information, meets the various display demand of user.The design architecture that the utility model adopts high-pressure modular and low-voltage module to isolate, high-pressure section and low-pressure section adopt light-coupled isolation, both enhance system stability, are convenient to again maintenance.When the utility model makes every effort to accomplish that circuit simplification, stable performance, mode of operation switch, display seamlessly transits, for Control and management through ITS field provides high performance price ratio and the traffic signals inverse timing device of perfect in shape and function.

Description

Self-adapting traffic signal countdown display device

Technical field

The utility model belongs to intellectual traffic control field.

Background technology

At present, traffic signals countdown display device is widely used in intelligent traffic signal lamp control system, its effect main display Current traffic red, yellow, and green signal excess time.It is more that this device adopts technical approach to have at present, single learning type, single RS-485 communicatively, mono signal trigger-type, triggers box-like, the communication exercise combined type of study group etc.Single learning type countdown display device is suitable for the environment not having the communications cable, saves and lays expense, and shortcoming is that display information often occurs digital disturbance state when the period switches or in cooperative type system self-induction and adaptive control; If single communication formula is applicable to count down information and points out changeable occasion, but communication disruption, can only extinguish countdown display device; The part contradiction of single learning type and single communication formula that single trigger-type control mode is level and smooth, its shortcoming is that part traffic signaling equipment does not have Trigger Function cannot complete the display of normal count down information.Because the countdown display device of single control mode exists many defects, many producers develop various combined type product, as triggered the multiple product such as learning type, communications triggered formula, communication exercise formula, and extreme enrichment countdown display device market.From product itself, be all the product of stable performance, then from application function, ubiquity is not enough as follows: 1) can not support that communications triggered learns self-adaptation simultaneously; 2) communication pattern must increase the communications cable; 3) simple traffic guidance information is not supported.Such as,

1. patent No. CN102938212A " communication type road traffic signal countdown display " provides a kind of communication type road traffic signal countdown display, this utility model does not relate to learning type and trigger-type control method, cannot solve the problem that countdown is extinguished in communication disruption situation;

2. patent No. CN102750831A " road traffic signal countdown display device ", CN103150917A " road traffic signal countdown display device " and patent No. CN202177976U " a kind of counting down device of traffic signal lamp " each provide a kind of learning-oriented road traffic signal countdown display device, this utility model does not relate to the solution of communications portion, cannot provide the problem of countdown flow display when really solving SPA sudden phase anomalies.

3. patent No. CN102682614A " trigger-type control display reverse-timing display device and display control method " provide a kind of trigger-type control display reverse-timing display device, do not relate to communication and mode of learning make application flexibility slightly inadequate.

4. patent No. CN202177976U " a kind of counting down device of traffic signal lamp " provides a kind of learning type count-down device based on dot matrix display screen, and the count-down device of shortcoming and the 2nd type is similar.

Summary of the invention

The utility model adopts communication, triggering and study to take over seamlessly adaptive algorithm, support traffic signal counter-down time-recorder in communication, trigger and automatic smoothing switching between mode of learning, solve the self-adapting traffic signal countdown display device that system upgrade needs the puzzlement changing corresponding count-down device.

The utility model is achieved by the following technical solution: a kind of self-adapting traffic signal countdown display device, and its technical characteristics is that it comprises system scheduling module and connects power management module and light color detection module and trigger pip detection module, count down information receiver module, display count down information module respectively; Count down information receiver module connects wireless module, mixed-media network modules mixed-media, power line carrier, PLC module, RS-485 communication module respectively; Power management module adopts RS407 bridge heap composition bridge rectifier circuit, and light color detection module and trigger pip detection module provide lamp state signal to the IO port of single-chip microcomputer STC15W408S by diode S2M and bleeder circuit through P521 optocoupler; Wireless receiving module selects general module, and its output signal is RS-232 serial signal, is transferred to the IO port of STC15W408S by the interface chip MAX232 on control panel; RS-485 data reception chip block employing model is the technical grade RS-485 serial sheet of 65LBC3082; The carrier chip of power line carrier module adopts SC1128 spread spectrum communication chip; System scheduling module is CPU module, comprises STC15W408S single-chip microcomputer, MAX232 serial communication chip and I/O port; The stroke system countdown display module of countdown and succinct induction information display module, adopt IRF9540 to control countdown color, chip ULN2803 drives stroke; Whether the lattice display module of countdown and succinct induction information display module realizes receiving and display communication count down information by dial-up; Drive display module to adopt chip APM4953, data bus isolating chip model is 74HC245, then drives the corresponding countdown of lattice display or induction information by driver module 74HC595;

Described power management module be bridge rectifier circuit turnover two-way respectively direct type number be the positive and negative diode of 4007, then in parallel together as the input of Switching Power Supply.

The utility model communication pattern supports wireless mode, carrier mode and wired communication modes, provides flexible communications transmission mode; Trigger the wide region trigger pulse supporting 100ms ~ 300ms, support the trigger pip that Multiple Type teleseme exports; Support under mode of learning that the monocycle learns display mode; Display module not only supports stroke bar single digit, dual number digits and multidigit display mode, also supports lattice display module, can support simple information, meets the various display demand of user.The design architecture that the utility model adopts high-pressure modular and low-voltage module to isolate, high-pressure section and low-pressure section adopt light-coupled isolation, both enhance system stability, are convenient to again maintenance.When the utility model makes every effort to accomplish that circuit simplification, stable performance, mode of operation switch, display seamlessly transits, for Control and management through ITS field provides high performance price ratio and the traffic signals inverse timing device of perfect in shape and function.

The utility model line design is succinct, and when stable performance, mode of operation switch, display seamlessly transits; Triggering part supports 100 ~ 300ms wide region trigger action; Learning time is short, only needs a complete cycle to show count down information; Support stroke countdown display and dot matrix countdown display; High-voltage acquisition circuit and low-voltage testing circuit completely isolated, enhance security of system and be convenient to safeguard.Communications portion adopts technical grade 485 serial communication chip 65LBC3082, supports RS-485 serial to pass through mode; Apparatus design involved by the utility model has carrier communication peripheral circuit module, and carrier chip adopts SC1128 spread spectrum communication chip.Device involved by the utility model adds mixed-media network modules mixed-media and network service expansion module, and network service chip adopts RTL8019AS; Communication, triggering and mode of learning scheduling switch employing based on closed loop mode of learning, and comprehensive triggering and signal of communication, real-time dynamic smoothing exports corresponding count down information.RS-232 chip adopts technical grade MAX232 chip, adopts optocoupler EL817 to implement Phototube Coupling.Wireless communication module adopts 470Mhz wireless communication module.Central processing unit adopts STC15W408S single-chip microcomputer, adopts 1T pattern (1 clock period/instruction) dominant frequency to reach 60 ~ 420MHz, is equivalent to 7 ~ 12 times of common 8051 single-chip microcomputers.

Accompanying drawing illustrates:

Fig. 1 is self-adapting traffic signal countdown display device principle of work;

Fig. 2 is self-adapting traffic signal countdown display device schematic diagram;

Fig. 3 is power management concepts figure;

Fig. 4 is signal acquisition circuit schematic diagram.

Embodiment:

As Figure 1-Figure 4,1 is power management and signal acquisition module, comprise module as shown in Figure 3 and Figure 4, power management section adopts RS407 bridge heap as rectification circuit, as long as 3 ~ 6 groups of signals have one group to provide power supply just can ensure, control module normally can obtain operating voltage; There is provided lamp state signal to the IO port of single-chip microcomputer STC15W408S through EL817 optocoupler, by completing STC15W408S settling signal Acquire and process by S2M and bleeder circuit.

2 is wireless receiving module, and receiver module selects general module, and its output signal is RS-232 serial signal, transferred to the IO port of STC15W408S by the interface chip MAX232 on control panel, use software read port, input-buffer, obtain corresponding data, obtain countdown display information.

3 is RS-485 data reception module, and this module is mainly used in the reception of general RS-485 serial network data.This module chip employing model is the technical grade RS-485 serial sheet of 65LBC3082.

4 is power line carrier module, and the carrier chip of this module adopts SC1128 spread spectrum communication chip, Absorbable organic halogens transmission and reception count down information.

5 is mixed-media network modules mixed-media, and the interface chip of this module adopts RTL8019AS communication chip, receives count down information and succinct induction information by this chip.

6 is CPU module, comprises STC15W408S single-chip microcomputer, MAX232 serial communication chip and I/O port.

7 is countdown and succinct induction information display module.1) stroke system countdown display module, adopt IRF9540 to control countdown color, ULN2803 drives stroke; 2) whether lattice display module, supports succinct induction information, realize receiving and display communication count down information by dial-up.1) pattern when not showing count down information, when green signal is only provided, Display of Chinese characters " slowly "; During red signal, Display of Chinese characters " stops ".2), when showing count down information pattern, receive communication count down information, then, after showing countdown numerical value to 1, after 2 seconds time-out, show corresponding traffic signals, green " slowly " red " stopping ".Adopt APM4953 to control countdown and induction information color, design by 74HC245 as data bus isolating chip, then drive the corresponding countdown of lattice display or induction information by 74HC595.

The utility model device is reliable and stable, and count down information, under Three models (communication, triggering and study), shows seamless switching, flow display corresponding information.Support multiple communication access way, user is easy to use, is applicable to showing count down information in various traffic signal control; Succinct induction information display is provided, makes count-down device show information hommization more.Installation and Debugging simple operation.

The utility model application is made up of cooperative type intellectual traffic control main frame and self-adapting traffic signal countdown display device 2 part, self-adapting traffic signal countdown display device can receive cooperative type intellectual traffic control main frame by RS-232 interface, RS-485 interface, radio communication, power carrier interface and network communication data, or export trigger message by traffic lights light color signal, the corresponding count down information of display or succinct induction information after process.The innovation of native system is: 1) support communication, trigger and study three kinds of modes count down information exclusive seamlessly transit scheduling method; 2) communication mode supports various ways communication interface, support of wireless communication module, power line carrier module, network communication module etc.; 3) this device supports stroke system, dot matrix two kinds of display modes; 4) adopt the power supply of Switching Power Supply as control module and display module of independent research, product consumable accessory is changed convenient.

Claims

1. a self-adapting traffic signal countdown display device, is characterized in that it comprises system scheduling module and connects power management module and light color detection module and trigger pip detection module, count down information receiver module respectively, shows count down information module; Count down information receiver module connects wireless module, mixed-media network modules mixed-media, power line carrier, PLC module, RS-485 communication module respectively; Power management module adopts RS407 bridge heap composition bridge rectifier circuit, and light color detection module and trigger pip detection module provide lamp state signal to the IO port of single-chip microcomputer STC15W408S by diode S2M and bleeder circuit through P521 optocoupler; Wireless receiving module selects general module, and its output signal is RS-232 serial signal, is transferred to the IO port of STC15W408S by the interface chip MAX232 on control panel; RS-485 data reception chip block employing model is the technical grade RS-485 serial sheet of 65LBC3082; The carrier chip of power line carrier module adopts SC1128 spread spectrum communication chip; System scheduling module is CPU module, comprises STC15W408S single-chip microcomputer, MAX232 serial communication chip and I/O port; The stroke system countdown display module of countdown and succinct induction information display module, adopt IRF9540 to control countdown color, chip ULN2803 drives stroke; Whether the lattice display module of countdown and succinct induction information display module realizes receiving and display communication count down information by dial-up; Drive display module to adopt chip APM4953, data bus isolating chip model is 74HC245, then drives the corresponding countdown of lattice display or induction information by driver module 74HC595.

2. a kind of self-adapting traffic signal countdown display device as claimed in claim 1, it is characterized in that described power management module be bridge rectifier circuit turnover two-way respectively direct type number be the positive and negative diode of 4007, then in parallel together as the input of Switching Power Supply.