CN203013210U - Solar expressway intelligent electronic screen display system based on AVR - Google Patents
Solar expressway intelligent electronic screen display system based on AVR Download PDFInfo
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- CN203013210U CN203013210U CN 201320043777 CN201320043777U CN203013210U CN 203013210 U CN203013210 U CN 203013210U CN 201320043777 CN201320043777 CN 201320043777 CN 201320043777 U CN201320043777 U CN 201320043777U CN 203013210 U CN203013210 U CN 203013210U
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Abstract
The utility model discloses a solar expressway intelligent electronic screen display system based on AVR. The solar expressway intelligent electronic screen display system based on AVR includes a first functional zone and a second functional zone. The first functional zone is inside provided with a first main controller, a solar main power supply module, an LED display module, an LCD adjusting module and a clock module. The second functional zone is inside provided with a second main controller, a solar auxiliary power supply module and an ultrasonic wave sensor used for whether information about that a vehicle passes by exist or not. The first functional zone is communicated with the second functional zone in a wireless manner. Through cooperating with a solar cell panel and an ultrasonic sensor, the intelligent control of expressway electronic display screens are realized, and requirements for saving energy, reducing consumption, reducing carbon emission and protecting environment in an expressway intelligent management system are satisfied. At the same time, the solar expressway intelligent electronic screen display system based on AVR is stable in performance and high in real-time performance, and is energy-saving and environment-friendly. The solar expressway intelligent electronic screen display system based on AVR has a good application prospect.
Description
Technical field
The utility model relates to a kind of solar high-speed Intelligent highway electrical screen display system based on AVR.
Background technology
At present, the LED electronic display is widely used in the Information Point of highway, has demonstrated great glamour as the information show tools LED electronic display of a new generation with its unrivaled advantage.But exist following problem in practical application: 1. LED electronic display power consumption is large and consume and the burning fossil energy is brought atmospheric pollution; 2. vehicle flowrate less on highway, the existing all weather operations pattern of LED electronic display does not meet energy-conservation requirement instantly; 3. the highway mileage is long, grows the laying service cable of distance, has increased the cost of engineering.
The utility model content
The purpose of the utility model embodiment is to propose a kind of solar high-speed Intelligent highway electrical screen display system based on AVR, can effectively solve the above-mentioned technical matters that the LED electronic display exists in actual application.
To achieve these goals, the utility model adopts following technical scheme:
Solar high-speed Intelligent highway electrical screen display system based on AVR comprises the first functional areas and the second functional areas; The first functional areas, inside are provided with the first primary controller, sun power master supply module, LED display module, LCD adjusting module and clock module; The second functional areas, inside are provided with the secondary supply module of the second primary controller, sun power and for detection of whether vehicle being arranged through the ultrasonic sensor of information; Adopt wireless mode to communicate between the first functional areas and the second functional areas.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR, between described the first functional areas and the second functional areas, distance is 180 meters～220 meters.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR, described communication is comprised of the wireless receiving module that is arranged on the first functional areas and the wireless sending module that is arranged on the second functional areas.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR, described the first primary controller adopts ATMega128 series A VR single-chip microcomputer, and the lead-out terminal of wireless receiving module is connected on the external interrupt pin of ATMega128.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR, described LCD adjusting module is connected on the I/O interface of described ATMega128.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR, described the second primary controller adopts the ATMEGA8 series monolithic.
In the above-mentioned solar high-speed Intelligent highway electrical screen display system based on AVR; described sun power master supply module is identical with the secondary supply module structure of sun power, and inside is provided with solar panel, DC/DC reduction voltage circuit, pulse charging circuit, lithium battery protection circuit, lithium battery and synchronous rectified boost circuit.
The utility model has the advantages that:
The solar high-speed Intelligent highway electrical screen display system based on AVR that the utility model is addressed, coordinate solar panel and ultrasonic sensor to realize the intellectuality of highway electric display screen is controlled, meet energy-saving and cost-reducing, low-carbon environment-friendly requirement in the express highway intelligent management system; Simultaneously, described smart electronics screen display system stable performance, real-time are high, energy-saving and environmental protection, have a good application prospect.
Description of drawings
Fig. 1 is based on the structured flowchart of the solar high-speed Intelligent highway electrical screen display system of AVR in the utility model embodiment;
Fig. 2 is the structural representation of sun power master supply module in Fig. 1;
Fig. 3 is the control flow graph of the first functional areas in the utility model embodiment;
Fig. 4 is the control flow graph of the second functional areas in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
In conjunction with Fig. 1, shown in Figure 2, the solar high-speed Intelligent highway electrical screen display system based on AVR comprises the first functional areas 1 and the second functional areas 2; The first functional areas, inside are provided with the first primary controller, sun power master supply module, LED display module, LCD adjusting module and clock module; The second functional areas, inside are provided with the secondary supply module of the second primary controller, sun power and for detection of whether vehicle being arranged through the ultrasonic sensor of information; Adopt wireless mode to communicate between the first functional areas and the second functional areas.Communication is comprised of the wireless receiving module that is arranged on the first functional areas and the wireless sending module that is arranged on the second functional areas.
The first primary controller is responsible for gathering the information of wireless receiving, LCD adjusting module and clock module, after treatment the LED display module is made corresponding adjustment, ultrasonic sensor detects the situation of distance L ED electrical screen 200 place's vehicles and sends corresponding information to the first primary controller, the secondary supply module of sun power master supply module and sun power stores sun power and as the energy of a whole set of display system, LED display module displaying time and information, the LCD adjusting module carries out setting parameter by button to display system, and clock module provides the current time.
The principle of work of the display system that the utility model is addressed is:
Set up ultrasonic sensor at distance L ED electronic display 200 meters, when there is no vehicle through out-of-date, the time-preserving that ultrasound wave is launched at every turn and returned, ultrasonic sensor can be to the first primary controller transmitted signal, the LED electronic display of this moment is in closed condition, and the LCD screen display is without vehicle and show the current time; When 200 meters location have vehicle through out-of-date, ultrasound wave emission and the time of returning shorten, this moment, ultrasonic sensor was first to the second primary controller transmission of signal, make order by the second primary controller, by wireless sending module to the first primary controller transmitted signal, when the first primary controller received this signal, at first then displaying time was brushed screen display and is shown information on LED display, and the LCD screen display have car through and LED shield the time of having lighted.The energy as whole system is provided by sun power master supply module and the secondary supply module of sun power, and when extraneous light was stronger, the electric energy part of sun power conversion was as the energy of system, and a part is stored in lithium battery; When extraneous light was weak, system's energy was all provided by lithium battery.
The first primary controller, adopt 8 AVR single chip computer AT Mega128 of top grade of Atmel company, this single-chip microcomputer has 64 pins, In-System Programmable Flash with 128K byte, the EEPROM of the SRAM of 4K byte and 4K byte, 53 universaling I/O port lines are supported the functions such as interruption, timer and analog to digital conversion, support that ISP downloads, the JTAG debugging, its powerful requirement that is enough to satisfy the design.
the lead-out terminal of wireless receiving module is connected on the external interrupt pin of ATMega128, utilize the interrupt function of ATMEGA128 to receive the vehicle detection signal that the ultrasound examination module is sent, trigger when receiving this signal and interrupt, demonstrate time and information on LED, utilize simultaneously the brightness of the analog-digital conversion function detection surrounding environment of ATMEGA128, according to the brightness of surrounding environment to the LED electronic display brightness make real-time adjustment, utilize the button adjustment information of the I/O mouth reception LCD adjusting module of ATMEGA128, in time the parameters of system is adjusted, in addition, ATMEGA128 also is used for gathering the clocking information of clock module, upgrades the information on the LCD screen is made timely.
Wireless receiving module, employing be domestic CC1100 wireless data transmission module, adopt the wireless module take the CC1100 radio frequency chip as node to realize data transmission.During CC1100 wireless receiving module receiving data information, at first allow CC1100 enter accepting state, if we have received one group of data within the time of setting, the pulse of a high-low level just can be detected above GDO2.Interrupt thereby trigger, read the data of the 1st byte of CC1100 receive data buffering, these data are exactly the data length that present CC1100 receives.If this length is to want the length of receive data, just can begin to have read data all in the CC1100 reception data buffer.
The LED display module mainly is comprised of LED electronic display and CH452.ATMEGA128 controls LED display brush screen display by CH452 and shows current time and safety instruction information, carries out the classification brightness adjustment after can being changed according to strength modulus according to current ambient light by ATmega128 in addition.
CH452 is charactron display driver and keyboard scan control chip.4 line serial line interfaces or the swap datas such as 2 line serial line interfaces and single-chip microcomputer of CH452 by can cascade, and can provide power-on reset signal to single-chip microcomputer.The utility model adopts is exactly that the mode of 4 line serial line interface cascades drives 16 8*8LED dot matrix and realizes that the brush screen displays show.
Clock module, adopt the DS1302 real-time clock module, DS1302 is a kind of high-performance of releasing of U.S. DALLAS company, low-power consumption, with the real time clock circuit of RAM, it can to year, month, day, Sunday, the time, minute, second carries out timing, have the leap year compensate function, operating voltage is 2.5V～5.5V.This module mainly is comprised of DS1302 clock chip and DS32KHZ temperature compensating crystal oscillator.Be used for providing system time, and the storage of temporal information, adjustment.
The second primary controller, adopt 8 AVR microprocessor ATMEGA8 of a high-performance, low-power consumption of atmel corp, 28 pins are arranged, select it to be because the relative main control module of this functions of modules is simple, and ATMEGA8 compares not minimizing on function with ATMEGA128, the FLASH that it is inner and SRAM also enough this modules use, and adopt simultaneously ATMEGA8 to save cost, have simplified the design of circuit.
Ultrasonic sensor externally has four pins, VCC, GND, the output of Echo response signal, the input of Trig Trig control signal.In the utility model, ATMEGA8 I/O pin is constantly given the trigger pip of ultrasound wave Trig input 10us, ultrasonic sensor is launched ultrasound wave automatically, when vehicle being arranged through out-of-date, ultrasound wave is received echoed signal, by response signal delivery outlet Echo output one high level, then this time of statistics ultrasound wave is transmitted into the time interval of sending response signal in program, and this time has been preserved cause ATmega8 through computing, draw the position of this car in the track, and be presented on 12864 liquid crystal; There is no vehicle through out-of-date in the zone, do not have echoed signal to return after ultrasound wave is launched, ATMEGA8 does not process this, and ultrasonic sensor continues outwards to launch ultrasound wave.
Wireless sending module, employing be also the CC1101 digital transmission module, when the utility model adopted digital transmission module, when road does not have vehicle through out-of-date, wireless sending module was in pause mode; When road has vehicle through out-of-date, detect and produce response signal by ultrasonic sensor and input to master control ATMEGA8, after ATMEGA8 inquires this signal, start wireless sending module and outwards send data message.CC1100 sends data, at first writes the byte number that will send data from the I/O mouth, then writes to want the data that send, writes at last the transmission enable command again, and CCll00 just begins to send data.After pulse of GD02 generation being detected, namely send successfully.If within a certain period of time, GD02 is upper without any action, and expression sends unsuccessfully.After being sent completely, the data dump that CC1100 is sent buffer zone falls.
Sun power master supply module is identical with the secondary supply module structure of sun power, and inside is provided with solar panel, DC/DC reduction voltage circuit, pulse charging circuit, lithium battery protection circuit, lithium battery and synchronous rectified boost circuit.These two modules mainly convert solar energy into electrical energy, for whole smart electronics screen display system provides lasting 5V uninterrupted power source.
Fig. 3 shows the control flow graph of the first functional areas.Carry out initialization operation after powering on, comprise the initialization of ATMEGA128 timer and interruption, the initialization of LED display, the initialization of LCD display and the initialization of real-time timepiece chip DS1302.Master routine brings into operation afterwards, at first goes out corresponding system information in the LCD screen display, comprise the current system time, have or not vehicle through and the LED screen information such as bright time.Then the brightness of surrounding environment detected, in order to the gray scale of LED screen is made corresponding adjustment.Then detect the LCD adjusting module whether the action of adjustment is arranged, comprise the adjustment of systemic-function and the adjustment of time, if there is action corresponding parameter to be adjusted, and the information after adjusting is presented on LCD, carry out afterwards vehicle mark position judgement, otherwise directly enter the vehicle mark position judgement stage.Complete in interruption the vehicle mark position, after the first primary controller receives the information that ultrasonic sensor sends here just with position, vehicle mark position, a period of time is later with the zone bit zero clearing, in being time period of 1, zone bit in the expression zone, car is arranged, be about to brush screen display and show time and information on the LED screen, again get back to the LCD screen display stage afterwards, otherwise directly get back to the screen display stage.
Fig. 4 shows the control flow graph of the second functional areas.Carry out initialization operation after powering on, comprise the initialization of initialization, ultrasonic sensor and the wireless transmit duty of ATMEGA8 timer and interruption.Master routine brings into operation afterwards, the continual outside emission ultrasound wave of ultrasonic sensor, become to trigger when receiving return signal and interrupt, this time emission of statistics and the time that receives in interruption, if shortening, the time of sampling represents that car is arranged in the zone, write wireless transmit by program with information this moment, through wireless transmitter module, information is sent to the first primary controller, otherwise continue the vehicle in the zone is detected.
Certainly; more than state the bright preferred embodiment of the present utility model that only is; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this instructions; alternative, obvious form of distortion that all that make are equal within all dropping on the essential scope of this instructions, ought to be subject to protection of the present utility model.
Claims (7)
1. based on the solar high-speed Intelligent highway electrical screen display system of AVR, it is characterized in that, comprise the first functional areas and the second functional areas; The first functional areas, inside are provided with the first primary controller, sun power master supply module, LED display module, LCD adjusting module and clock module; The second functional areas, inside are provided with the secondary supply module of the second primary controller, sun power and for detection of whether vehicle being arranged through the ultrasonic sensor of information; Adopt wireless mode to communicate between the first functional areas and the second functional areas.
2. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 1, is characterized in that, between described the first functional areas and the second functional areas, distance is 180 meters～220 meters.
3. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 1, it is characterized in that, described communication is comprised of the wireless receiving module that is arranged on the first functional areas and the wireless sending module that is arranged on the second functional areas.
4. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 1, it is characterized in that, described the first primary controller adopts ATMega128 series A VR single-chip microcomputer, and the lead-out terminal of wireless receiving module is connected on the external interrupt pin of ATMega128.
5. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 4, is characterized in that described LCD adjusting module is connected on the I/O interface of described ATMega128.
6. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 1, is characterized in that, described the second primary controller adopts the ATMEGA8 series monolithic.
7. the solar high-speed Intelligent highway electrical screen display system based on AVR according to claim 1; it is characterized in that; described sun power master supply module is identical with the secondary supply module structure of sun power, and inside is provided with solar panel, DC/DC reduction voltage circuit, pulse charging circuit, lithium battery protection circuit, lithium battery and synchronous rectified boost circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043777 CN203013210U (en) | 2013-01-28 | 2013-01-28 | Solar expressway intelligent electronic screen display system based on AVR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043777 CN203013210U (en) | 2013-01-28 | 2013-01-28 | Solar expressway intelligent electronic screen display system based on AVR |
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| Publication Number | Publication Date |
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| CN203013210U true CN203013210U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320043777 Expired - Fee Related CN203013210U (en) | 2013-01-28 | 2013-01-28 | Solar expressway intelligent electronic screen display system based on AVR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072470A (en) * | 2015-09-10 | 2015-11-18 | 湖南科技大学 | Ultrasonic ranging-based television screen intelligent dimming device and method |
-
2013
- 2013-01-28 CN CN 201320043777 patent/CN203013210U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072470A (en) * | 2015-09-10 | 2015-11-18 | 湖南科技大学 | Ultrasonic ranging-based television screen intelligent dimming device and method |
| CN105072470B (en) * | 2015-09-10 | 2018-05-08 | 湖南科技大学 | A kind of television screen intelligent dimming device and method based on ultrasonic ranging |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140128 |