CN101499215A - Road condition information indicating system - Google Patents
Road condition information indicating system Download PDFInfo
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- CN101499215A CN101499215A CNA2009100784323A CN200910078432A CN101499215A CN 101499215 A CN101499215 A CN 101499215A CN A2009100784323 A CNA2009100784323 A CN A2009100784323A CN 200910078432 A CN200910078432 A CN 200910078432A CN 101499215 A CN101499215 A CN 101499215A
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- information indicating
- road condition
- condition information
- indicating system
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Abstract
The invention discloses a road condition indicating system that comprises a central control end and at least one display terminal with a preset address code. The system provides a driver with the road information of strong timeliness and pertinence, and relieves the traffic stress to bigger extent.
Description
Technical field
The present invention relates to the municipal traffic technical field, the road condition information indicating system of a plurality of display terminals of in particular a kind of Long-distance Control.
Background technology
At present, the personal automobile recoverable amount rises day by day, traffic pressure grows with each passing day, only depend on the traditional direction board on street and the highway can not solve present traffic pressure, because traditional direction board all adopts fixed road direction board, this kind road is indicated ageing relatively poor, can not change the road traffic indication flexibly according to road conditions.And existing guideboard function singleness, provide information less, only limit to the indication of road name and direction, can't show other information requirements.
Chinese invention patent CN101241648 discloses a kind of expressway information messenger device, comprises traffic information emitter and on-vehicle information receiving trap.This invention can receive the traffic information of fixed location traffic information emitter emission, and uses the speech play corresponding road condition information; But and can upgrade traffic information and carrying advertisement with the mode of wireless data transmission.There is following deficiency in this patent of invention:
1. the traffic information of being issued, all receiving traps can both receive that the traffic information specific aim is not strong;
2. can not issue and displays image information, intuitive is not strong;
3. receiving end can only be reported traffic information by audio frequency, and when listening to traffic information, there is traffic safety hidden danger in driver's dispersion attention.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is at the deficiencies in the prior art, and the road condition information indicating system of a plurality of display terminals of a kind of Long-distance Control is provided.
Technical scheme of the present invention is as follows:
A kind of road condition information indicating system comprises: the display terminal of central control terminal and at least one default address code;
Described central control terminal comprises data processing module and coding transmitter module, and described data processing module is used for the editing and processing of video data; Described coding transmitter module is used for coding, modulation, the emission of described video data;
Described display terminal comprises acquisition module, decoder module, identification control module, data reception module, memory module and the display module that is linked in sequence;
Described acquisition module is used for received RF signal, is converted to intermediate-freuqncy signal, and frequency discrimination goes out digitally encoded signal, exports described digitally encoded signal to described decoder module;
Described decoder module also is connected with described data reception module, is used for described digitally encoded signal decoding is obtained decoded signal, is sent to described identification control module and described data reception module;
Described identification control module is used to judge whether described decoded signal exists the address code of described display terminal, is sending controling instruction then, controls described data reception module and receives described decoded signal;
Described data reception module is used to receive described steering order, receives described decoded signal, exports described decoded signal to described memory module;
Described memory module is used to store described decoded signal;
Described display module is used for showing customizing messages according to the decoded signal in the described memory module.
Described road condition information indicating system, described display module comprise control module, driver element and the led display unit that is linked in sequence.
Described road condition information indicating system, described display module also comprises the pointwise adjustment unit, is used for as required each LED lamp point of described led display unit is carried out gamma correction one by one.
Described road condition information indicating system, described pointwise adjustment unit is provided with external data interface, be used for performance parameter with described led display unit, output to outside computing machine, analyze by its homogeneity each LED lamp point, select the data of optimum performance parameters, respectively each LED lamp point is carried out the brightness adjustment, make the brightness of described led display unit identical with colourity by described pointwise adjustment unit.
Described road condition information indicating system, described display module also comprises a transparent panel, fixedly is covered on the described led display unit.
Described road condition information indicating system, described display module also comprises a face shield, forms grid on the described face shield, is used to hold and isolates LED lamp point.
Described road condition information indicating system, described led display unit are the single-primary-color LED array, or are at least two primary-color LED arrays.
Described road condition information indicating system, each LED light emitting diode is OLED light emitting diode and drives structure thereof.
Described road condition information indicating system, described coding transmitter module comprise communication module, time-sequence control module, coding module and the modulate emission module that connects in turn;
Described communication module is connected with described data processing module, is used to receive described video data;
Described time-sequence control module is used to control described display data transmissions sequential;
Described coding module is used to receive described video data, encodes output video data coding;
Described modulate emission module is used for described video data coded modulation to carrier wave and emission.
Described road condition information indicating system, described identification control module comprises recognition unit, judging unit and the control module that is linked in sequence, described recognition unit is used for reading the address packet of decoded signal, and output; Described judging unit is used for judging whether the address packet of described decoded signal is identical with described default address code; Described control module is used for controlling described data reception module according to judged result and carries out Data Receiving.
Adopt such scheme, the present invention shows the traffic information that specific aim is stronger in real time by a plurality of display terminals of central control terminal Long-distance Control, for the driver provides ageing traffic information strong and with strong points, alleviates traffic pressure largely.
Description of drawings
Fig. 1 is the theory diagram of road condition information indicating system of the present invention;
Fig. 2 is the theory diagram of central control terminal of the present invention;
Fig. 3 is the present invention's transmitter module theory diagram of encoding;
Fig. 4 is the theory diagram of display terminal of the present invention;
Fig. 5 is the structural representation of video data of the present invention;
Fig. 6 is the theory diagram of identification control module of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
Present embodiment provides a kind of road condition information indicating system, comprise: the display terminal 11 of central control terminal 10 and three default address codes, as shown in Figure 1, address code is two bit binary number, its address code is respectively 00,01,10, according to the quantity of display terminal, three bit address sign indicating numbers, four bit address sign indicating numbers or multidigit more can be set; As shown in Figure 2, central control terminal 10 comprises data processing module 101 and coding transmitter module 102, and data processing module 101 is used for the editing and processing of video data; Coding transmitter module 102 will be encoded through data processing module 101 editors' video data, be modulated to the high frequency carrier emission; As shown in Figure 5, be a kind of structure of present embodiment video data, comprise beginning bag, address packet, packet and end packet, begin to wrap the beginning of expression one frame data, address packet comprises the address code of display terminal, and packet includes above-mentioned video data, and end packet is used to provide the sign of ED.
As shown in Figure 3, coding transmitter module 102 comprises communication module 1021, time-sequence control module 1022, coding module 1023 and the modulate emission module 1024 that connects in turn; Communication module 1021 is connected with data processing module 101, is used to receive video data; Time-sequence control module 1022 is used to control the display data transmissions sequential; Coding module 1023 is used to receive described video data encodes, output video data coding; Modulate emission module 1024 is used for the video data coded modulation to carrier wave and emission.
As shown in Figure 4, display terminal 11 comprises acquisition module 111, decoder module 112, identification control module 113, data reception module 114, memory module 115 and display module 116; Acquisition module 111 is connected with decoder module 112, and acquisition module 111 received RF signals are converted to intermediate-freuqncy signal, frequency discrimination goes out digitally encoded signal, to decoder module 112 output digitally encoded signals, decoder module 112 is used for the digitally encoded signal decoding is obtained decoded signal.
Like this, central control terminal 10 is gathered traffic information in real time, and select traffic information is sent to specific display terminal by changing the video data address code in this locality, for example, suppose display terminal 00, display terminal 01, display terminal 10 lays respectively at A ground, B ground and C ground, traffic hazard takes place in B ground, so only need on the display terminal 00 on A ground, release news " the place ahead accident ", the vehicle that warning is about to the to enter B ground driving of taking care, and the display terminal that is in B ground and C ground does not show accident information, make traffic information, targetedly and issue ageingly, guiding and evacuate vehicle.
Embodiment 2
On the basis of embodiment 1, present embodiment adopts FPGA (field programmable gate array) to realize the sequential control function of time-sequence control module; FPGA is provided with its duty by the program that leaves in the ram in slice, therefore, need the RAM in the sheet be programmed during work.The user can adopt different programming modes according to different configuration modes.When powering up, fpga chip reads in data among the EPROM among the RAM that programmes in the sheet, and after configuration was finished, FPGA entered duty.After the power down, FPGA reverts to white, and the internal logic relation disappears, and therefore, FPGA can use repeatedly.The programming of FPGA need not be special-purpose the FPGA programmable device, need only get final product with general EPROM, PROM programmable device.When needs are revised the FPGA function, only need change a slice EPROM and get final product.Like this, with a slice FPGA, different programming datas can produce different circuit functions.Therefore, the use of FPGA both can solve the deficiency of custom circuit in the application, upgrading and maintenance in also convenient the use.
Embodiment 3
On the basis of embodiment 1, as shown in Figure 6, identification control module 113 comprises recognition unit 1131, judging unit 1132 and the control module 1133 that is linked in sequence, and recognition unit 1131 is used for reading the address packet of decoded signal, and output; Judging unit 1132 is used for judging whether the address packet of decoded signal is identical with the default address code of this display terminal; Control module 1133 is used for carrying out Data Receiving according to judged result control data receiver module 114, for example working as judging unit 1132 judged results is "Yes", then send control signal to data reception module 114 by control module 1133, data reception module 114 is opened gate circuit and is begun to receive video data, when judged result is "No", control module 1133 does not send control signal, and data reception module 114 gate circuits are in normally off, do not receive video data.
Embodiment 4
On the basis of above-mentioned each example, present embodiment preferably adopts LED display as display module 116, and it comprises control module, driver element and led display unit (not shown), and the led array that led display unit is arranged by two dimension forms.For example, led array can form circle, annular, rectangle, square etc.LED is a LED lamp point, or claims the LED light emitting diode.
Control module is used to control the driving data transmission of led display unit, the preferred ZQ9705 family chip that adopts is as control module, driver element is used for providing drive current to the LED of led display unit lamp point, the preferred ZQL9712 family chip that adopts is as driver element, ZQL9712 is string and the conversion chip that drives Application Design specially for LED, adopt advanced CMOS technology, had advantage of low power consumption.ZQL9712 possesses general string and conversion and control interface, and local 3 bit parallels drive output, and the cascade that is particularly suitable for many discrete points is used.The ZQL9712 string moves clock frequency and can reach 15MHz, and the drive current of maximum 30mA is provided.
Another example is, display module also comprises the pointwise adjustment unit, is used for as required each LED lamp point of described led display unit is carried out gamma correction one by one.
Because each LED characteristic difference, therefore under same drive current, luminous intensity and visual effect all can be variant, therefore led display unit is carried out the pointwise adjustment seems very necessary, otherwise the white balance poor effect of entire display screen, above-mentioned pointwise adjustment unit are provided with in order to carry out the pointwise adjustment just.
For example, described pointwise adjustment unit is provided with external data interface, be used for performance parameter with described led display unit, output to outside computing machine, analyze by its homogeneity each LED lamp point, select the data of optimum performance parameters, respectively each LED lamp point is carried out the brightness adjustment, make the brightness of described led display unit identical with colourity by described pointwise adjustment unit.
On the basis of above-mentioned each example, another example, display module 116 can also comprise a transparent panel (not shown), fixedly are covered on the led display unit, reach like this that display module is anti-to tan by the sun purposes such as waterproof and dustproof.
On the basis of above-mentioned each example, another example, display module 116 can also comprise a face shield, forms the palisade grid on this face shield, each grid is used to hold and isolates each LED lamp point, realizes better LED lamp point diffracting effect.
On the basis of above-mentioned each example, another example led display unit is the single-primary-color LED array, such as redness or green or yellow etc., satisfies the needs of different environments for use.
On the basis of above-mentioned each example, another example, led display unit is at least two primary-color LED arrays, such as dual base color, three primary colours or the like, can show the traffic information that both pictures and texts are excellent, and can issue wherein a kind of traffic information of color as required, such as warning red information or warning yellow information.
On the basis of above-mentioned each example, another example, described memory module 115 is used Nonvolatile memory devices, such as nonvolatile semiconductor memory members such as RAM, EPPROM, can guarantee when system's power down that like this display message do not lose.
In above-mentioned each example, described LED light emitting diode, can also be OLED (Organiclight-emitting diode, Organic Light Emitting Diode), comprise double-deck A type (double layer-A, DL-A), double-deck Type B (double layer-B, DL-B), three layers of A type (three layer-A, TL-A), three layers of Type B (three layer-B, TL-B), single quantum or Multiple Quantum Well (multiplequantumwell, MQW) OLED of structure or the like, the present invention do not make any additional limits to this.Like this, need not backlight, OLED adopts extremely thin coating of organic material and glass substrate, as electric current by the time, OLED will be luminous, has that reaction is fast, in light weight, a thin thickness, simple structure, low cost and other advantages.
For example, described OLED basic structure is an indium tin oxide that links to each other with positive source (ITO), adds another metallic cathode, is bundled into the structure as sandwich.Comprised in the total layer: hole transmission layer (HTL, Hole Transport Layer), luminescent layer (EL, Emitter Layer) and electron transfer layer (ETL, Electron Transport Layer).When the supply appropriate voltage, the positive electrical hole will combine in luminescent layer with the negative electrode electric charge, produces light, according to the different RGB three primary colors that produce of its prescription, constitutes basic color.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (9)
1, a kind of road condition information indicating system is characterized in that, comprising: the display terminal of central control terminal and at least one default address code;
Described central control terminal comprises data processing module and coding transmitter module, and described data processing module is used for the editing and processing of video data; Described coding transmitter module is used for coding, modulation, the emission of described video data;
Described display terminal comprises acquisition module, decoder module, identification control module, data reception module, memory module and the display module that is linked in sequence;
Described acquisition module is used for received RF signal, is converted to intermediate-freuqncy signal, and frequency discrimination goes out digitally encoded signal, exports described digitally encoded signal to described decoder module;
Described decoder module also is connected with described data reception module, is used for described digitally encoded signal decoding is obtained decoded signal, is sent to described identification control module and described data reception module;
Described identification control module is used to judge whether described decoded signal exists the address code of described display terminal, is sending controling instruction then, controls described data reception module and receives described decoded signal;
Described data reception module is used to receive described steering order, receives described decoded signal, exports described decoded signal to described memory module;
Described memory module is used to store described decoded signal;
Described display module is used for showing customizing messages according to the decoded signal in the described memory module.
2, road condition information indicating system according to claim 1 is characterized in that, described display module comprises control module, driver element and the led display unit that is linked in sequence.
3, road condition information indicating system according to claim 2 is characterized in that, described display module also comprises the pointwise adjustment unit, is used for as required each LED lamp point of described led display unit is carried out gamma correction one by one.
4, road condition information indicating system according to claim 3, it is characterized in that, described pointwise adjustment unit is provided with external data interface, be used for performance parameter with described led display unit, output to outside computing machine, analyze, select the data of optimum performance parameters by its homogeneity to each LED lamp point, respectively each LED lamp point is carried out the brightness adjustment by described pointwise adjustment unit, make the brightness of described led display unit identical with colourity.
5, road condition information indicating system according to claim 2 is characterized in that, described display module also comprises a transparent panel, fixedly is covered on the described led display unit.
6, road condition information indicating system according to claim 2 is characterized in that, described display module also comprises a face shield, forms grid on the described face shield, is used to hold and isolates LED lamp point.
7, road condition information indicating system according to claim 2 is characterized in that, described led display unit is the single-primary-color LED array, or is at least two primary-color LED arrays.
8, road condition information indicating system according to claim 1 is characterized in that, described identification control module comprises recognition unit, judging unit and the control module that is linked in sequence, and described recognition unit is used for reading the address packet of decoded signal, and output; Described judging unit is used for judging whether the address packet of described decoded signal is identical with described default address code; Described control module is used for controlling described data reception module according to judged result and carries out Data Receiving.
According to the arbitrary described road condition information indicating system of claim 2 to 8, it is characterized in that 9, each LED light emitting diode is OLED light emitting diode and drives structure thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100784323A CN101499215A (en) | 2009-02-20 | 2009-02-20 | Road condition information indicating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100784323A CN101499215A (en) | 2009-02-20 | 2009-02-20 | Road condition information indicating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101499215A true CN101499215A (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100784323A Withdrawn CN101499215A (en) | 2009-02-20 | 2009-02-20 | Road condition information indicating system |
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| CN (1) | CN101499215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862881A (en) * | 2016-09-21 | 2018-03-30 | 丰田自动车株式会社 | Drive assistance device |
-
2009
- 2009-02-20 CN CNA2009100784323A patent/CN101499215A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862881A (en) * | 2016-09-21 | 2018-03-30 | 丰田自动车株式会社 | Drive assistance device |
| CN107862881B (en) * | 2016-09-21 | 2020-08-07 | 丰田自动车株式会社 | Driving support device |
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Open date: 20090805 |