CN102622905B - Running information interaction system based on wireless communication and running information interaction method based on wireless communication - Google Patents
Running information interaction system based on wireless communication and running information interaction method based on wireless communication Download PDFInfo
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Abstract
The invention discloses a running information interaction system based on wireless communication and a running information interaction method based on wireless communication. The running informatino interaction system comprises an information transmitting subsystem, an information receiving subsystem and a simplified information transmitting subsystem. The information transmitting subsystem is used for acquiring global positioning information and other information, and transmitting the information in the form of electromagnetic waves after processing the information. The information receiving subsystem is used for monitoring information channels on a preset frequency band, detecting information on the information channels, displaying the information and giving out an alarm when necessary. The simplified information transmitting subsystem is mostly used for indicating guide board information, temporary road construction indicating information and the like, and is a simplified low-cost system. Traffic accidents cause huge loss of life and property and human tragedies every year, and by the aid of the system and the method, a driver can discover hazardous road conditions in advance, timely make prognosis and take countermeasures, running safety is guaranteed well, the traffic accidents can be effectively decreased or avoided, and quite high economic and social benefits are achieved.
Description
Technical field
The invention belongs to the technical field of information interaction being applied to automobile electronic system, relate to a kind of running information interactive system based on radio communication and method.
Technical background
According to statistics, the number that is killed in an automobile accident every year of China is more than 100,000.The Road Safety Status of China is very severe, and statistics shows, within every 5 minutes, just has a people to lose one's life wheel, within every 1 minute, all can have a people because traffic hazard and disability.The economic loss caused because of traffic hazard every year reaches tens billion of unit.
In recent years, along with improving constantly of living standards of the people, the automobile pollution of China constantly rises.This is to our current control of traffic and road, and traffic safety proposes new test.We need to take new effective measure, cut down traffic accidents, the security of the lives and property of the protection people.
During vehicle travels, the anticipation of driver is very important to traffic safety.From traffic accident investigation, be much due to the non-Timeliness coverage ambient conditions of driver, fail take measures in time and cause.Such as, near the mountain highway takes a sudden turn, fail to find to send a car in opposite; Driving at night on highway, the continuous rear collision after getting into an accident; Not to be noted road dangerous situation bulletin and go out highway etc.
At present, the perception of driver to ambient conditions has two kinds of approach, and one is light, i.e. vision, various guideboard, the visual determination of surrounding road condition, the car light etc. that night sends a car in opposite.The second is the sense of hearing, i.e. the tucket of driving around.In certain situation, such as, rainy day, or night, audiovisual is by limited time, and these two kinds of approach are often not enough to the traffic safety ensureing driver.The invention provides the third approach, wireless messages is warned.
Existing vehicle-bone global positioning system terminal is passively accept satellite-signal, and storing map information and some static position warning information (speed limit mark), therefore can not obtain current intelligence information around.
Solution provided by the invention is the signal transmitting system and the receiving system that connect GPS terminal, the positional information of global positioning system terminal sends with the form of broadcast by signal transmitting system, and the vehicle of homologous ray of pretending so around just can obtain the positional information of this car.
In addition, at road sign billboard, the warning information emitter of inventive solution is installed.Also can in road construction position, the interim warning information emitter placing inventive solution, for reminding passing driver.
Radiowave is good information interaction carrier, can be undertaken on a large scale without the information interaction at dead angle by direct projection, reflection, diffraction etc., and digital radio has good fault-tolerant error-correcting performance, can ensure accuracy and the reliability of data interchange links.Therefore can provide driving peripheral information for driver alternately by digital wireless signal, make driver make accurate anticipation in advance, avoid dangerous generation.Such as, when highway near the mountain takes a sudden turn, the vehicle of Facing Movement uses inventive solution to send positional information in advance, then this two cars is not when seeing the other side, just can know have subtend to send a car by native system, can slow down in time and keep away row.
Such as, driving at night on highway, after getting into an accident, opens sender unit of the present invention in time, warns vehicle below, so just can notify danger in time when limited sight.And traffic accident or help information can be blazed abroad very soon by information relay forwarding capability of the present invention.
Also can fill simplification information transmitting subsystem of the present invention on road caution mark, send road information, remind passing driving.
Such as, when having road dangerous situation, with simplification information transmitting subsystem of the present invention, send dangerous situation warning, driver's general idea just can be avoided to get into an accident.
Also can, in some sections, the present invention be used to send advertising message, " * * welcomes you, has here ....”
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned Exploration on Train Operation Safety, provides a kind of running information wireless interaction system.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of running information interactive system based on radio communication.It is characterized in that: the information transmitting subsystem comprising a kind of running information interactive system based on radio communication, based on a receives information subsystem for the running information interactive system of radio communication, and a kind of simplification information transmitting subsystem of the running information interactive system based on radio communication.
Meanwhile, the invention also discloses a kind of method of the running information interactive system based on radio communication.
1. based on an information transmitting subsystem for the running information interactive system of radio communication, it is characterized in that: comprise GPS location and display unit, transmitting information setting unit, launch information process unit, the wireless messages transmitter unit launched at allocated frequency band from information process unit obtaining information and with wireless signal
2. the receives information subsystem based on the running information interactive system of radio communication, it is characterized in that: comprise the wireless messages receiving element of the wireless signal received on allocated frequency band, information process unit that the information that gets from wireless messages receiving element goes forward side by side row relax, get positional information, directional information and information warning etc. from information process unit, and carry out showing and the display unit of alarm.
3. based on a simplification information transmitting subsystem for the running information interactive system of radio communication, it is characterized in that: comprise for the information process unit of the initialization unit of initialization transmitting site and information, GPS timing information acquiring unit, row relax of going forward side by side from position and information initializing unit obtaining information, the wireless messages transmitter unit launched at allocated frequency band from information process unit obtaining information and with wireless signal.
4. carry out the method for information interaction based on the information transmitting subsystem of the running information interactive system of radio communication, it is characterized in that the method comprises the following steps:
Step one, display unit obtain positional information (such as: longitude, latitude and sea level elevation) and direction of travel information (such as: with positive northern for zero degree from GPS positioning unit, due east is 90 degree, due south is 180 degree, positive west is 270 degree), at the display screen display self position of display unit, and show self-direct of travel.
Step 2, information process unit obtain positional information (such as: longitude, latitude and sea level elevation) from GPS positioning unit, direction of travel information (such as: with positive north for zero degree, due east is 90 degree, due south is 180 degree, and positive west is 270 degree) and obtain travel speed information from in-vehicle electronic system.Arrange the transmitting information content, the information content can be character string, can be the information encoding meeting pre-defined rule; Also can not arrange the transmitting information content, this situation only sends essential information (such as: position, direction, the information such as speed).
Step 3 is if send multidate information, then the idle dynamic-configuration channel of random acquisition, obtains repeatedly transmission time interval at random; If transmission periodical information, then the idle static configuration channel of random acquisition, delivery time skew and the cycle of transmission.
Step 4, from GPS positioning unit obtain timing information, time calibration is carried out to system.
The channel that step 5, the information obtained step 2 obtain in step 3 is encoded, and additional information check bit, formation information coding.
Step 6, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol.
Step 7, in modulation symbol, add reference symbol.
Step 8, modulation symbol and reference symbol to be amplified by information type amplification coefficient, after channel mapping and aftertreatment, up-conversion to carrier frequency, by antenna transmission signal.
5. carry out the method for information interaction based on the receives information subsystem of the running information interactive system of radio communication, it is characterized in that the method comprises the following steps:
Step one, by the time of system calibration, the signal that antenna receives to be sampled, and carry out analog to digital conversion.
Step 2, channel separation is carried out to the data that step one obtains.
Step 3, all channels are adjudicated whether signal energy is greater than threshold value one by one, if signal energy is greater than threshold value, then channel estimating is carried out to this channel, and carry out equilibrium treatment.If signal energy is less than or equal to threshold value, then skip this channel.
Step 4, the channel data of step 3 to be decoded, and verify.
If step 5 check errors, is designated rub-out signal.If verification is correct, then signal is resolved.
After step 6, this information analysis, positional information parsing obtained, directional information and the word additional information that may exist are sent to display unit.Meanwhile, if after this information analysis, there is relay forwarding to identify, then this information is sent to information transmitting subsystem.
Step 7, display unit, the relative position of display acquisition information, direction, and possible Word message.If the information displaying that display unit receives is error message, then display unit prompting " slow down ".Display unit judges, if this information is urgent or important information, then warns by the mode such as flickering display or sound.
Step 8, skip to step 3, until process all channels.
6. carry out the method for information interaction based on the simplification information transmitting subsystem of the running information interactive system of radio communication, it is characterized in that the method comprises the following steps:
Step one, system initialization instrument obtain positional information (such as: longitude, latitude and sea level elevation) and directional information (such as: with positive northern for zero degree from GPS positioning unit, due east is 90 degree, due south is 180 degree, and positive west is 270 degree).System initialization instrument arranges transmitting notification information, and notification information can be character string, also can be the information encoding meeting pre-defined rule.
Step 2, acquisition static configuration channel, delivery time skew and channel send the cycle.
Step 3, from GPS positioning unit obtain timing information, time calibration is carried out to system.
The channel that step 4, the information obtained step one obtain in step 2 is encoded, and additional information check bit, formation information coding.
Step 5, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol.
Step 6, in modulation symbol, add reference symbol.
Step 7, modulation symbol and reference symbol to be amplified by information type amplification coefficient, channel mapping and aftertreatment.
Step 8, the information transmission that step 7 obtained are to the simplification information transmitting subsystem based on the running information interactive system of radio communication.
Step 9, initialization terminate.Start the simplification information transmitting subsystem based on the running information interactive system of radio communication.
Step 10, simplification information transmitting subsystem based on the running information interactive system of radio communication, obtain GPS location time information, carry out system time calibration.
Step 11, based on the simplification information transmitting subsystem of the running information interactive system of radio communication in the moment in cycle of initializing set, the information up-conversion that step 8 is obtained to carrier frequency, by antenna transmission signal.
7., based on the information transmitting subsystem of the running information interactive system of radio communication, based on the simplification information transmitting subsystem of the running information interactive system of radio communication, before modulation symbol is mapped, need amplify information by information type.Such as, general information warning, advertised information, amplification coefficient is β
0, make the receiving end in 400 meters under relative velocity is 400 kilometers/hour of conditions, Block Error Rate is less than 1%; Danger warning information, amplification coefficient is β
1, make the receiving end in 600 meters under relative velocity is 400 kilometers/hour of conditions, Block Error Rate is less than 1%; Deng.
8. transmitting terminal can carry relay forwarding mark for information.Receiving end, when receiving the information of carrying relay forwarding mark, judges, if send positional distance with signal to be less than L
0(such as, 150 meters) or be greater than L
1(such as, 200 kilometers), then ignore this mark.If send positional distance with signal to be more than or equal to L
0(such as, 150 meters) and be less than or equal to L
1(such as, 200 kilometers), then this information of relay forwarding.The information of carrying relay forwarding mark is static channel periodically transmission information.Relay forwarding, forwarded in the prime information channel next cycle moment.
9. according in claim 1, claim 2 and claim 3, transmitting terminal and receiving end mutual message structure definition:
Struct{
Relay forwarding identifies; (comprising cycle and offset information)
Information encoding;
Positional information; (comprising: longitude, latitude and sea level elevation etc.)
Direction vector information (comprising direction and speed etc.);
Additional information identifies;
Additional information;
Filling information; (make information digit be the integral multiple of 8 or 16, be convenient to process)
Check bit;
}
Transmitting terminal and the mutual information of receiving end can carry out classifying and numbering, the immobilized substance that each numbering is corresponding different.The quantity of information of air interface transmission can be reduced like this, show corresponding immobilized substance by number at display unit, be convenient to read.Such as: numbering 1, corresponding " scene of an automobile accident carefully passes through "; Numbering 2, corresponding " constructing in section, front, please detour "; Numbering 3, corresponding " school slows down and passes through ", etc.
10. information sends on the different channels of identical frequency band, and receiving end detects reception information on the different channels of identical frequency band; Channel on frequency band is divided into static configuration channel and dynamic-configuration channel; Static configuration channel is used for periodically sending information; Dynamic-configuration channel is random acquisition, and the short time temporarily takies the channel of transmission information.
The present invention compared with prior art has the following advantages:
1, hardware device is simple and input cost is low.
2, information interaction is simple, and information interaction real-time is good, safety quick.Such as, the automobile that speed per hour is 100 kilometers/hour, per secondly advances 27.8 meters; And relative direction two speed per hours are the automobile of 100 kilometers/hour, per secondly relatively advance 55.6 meters.Therefore the real-time of information interaction is extremely important.
3, to exchange information classification, with different channels, different energy ranks sends, can the reliability of data link, reduces information and signal disturbing.
4, signal relay forwarding function, can make to blaze abroad in the emergence message short time.
In sum, the present invention is novel in design rationally, system complexity is low, information transmission real-time is high and operation cost is low.In the highway of state-owned hundreds of thousands kilometer, world's total mileage of highway is more above gigameter, and these highways lack security information caution system mostly.Whole world automobile is hundreds of millions of, and does not also have the dynamic information interactive system between vehicle at present.The invention discloses a kind of running information interactive system based on radio communication and method, make driver clearerly can understand environment around by wireless information interaction, possible dangerous situation is made and judges in advance.Effectively can reduce the dangerous probability occurred, there is significant economic benefit and social benefit.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the principle of work block diagram of the running information interactive system that the present invention is based on radio communication.
Fig. 2 is the principle of work block diagram of the simplification information transmitting subsystem of the running information interactive system that the present invention is based on radio communication.
This section is deleted
Fig. 3 is the wireless information interaction schematic diagram between running automobile of the present invention.
Fig. 4 is that running automobile receives road caution board transmission wireless messages schematic diagram.
Fig. 5 is that scene of an automobile accident vehicle sends radio alarm information schematic diagram.
Fig. 6 is position display system display information schematic diagram in car.
Embodiment
The present invention can be divided into three different subsystems, respectively as on the left of Fig. 1, on the right side of Fig. 1 and shown in Fig. 2.As on the left of Fig. 1 being the information transmitting subsystem of running information interactive system based on radio communication, as on the right side of Fig. 1 being the receives information subsystem of running information interactive system based on radio communication.Fig. 2 is the simplification information transmitting subsystem of the running information interactive system based on radio communication.Fig. 2 is a kind of simplification system, for reducing system cost.
1., in the wireless information interaction scene between the running automobile of such as Fig. 3, vehicle can become take over party or transmit leg, and reciprocal process is as follows:
(1) information process of transmitting:
Step one, display unit obtain positional information (such as: longitude, latitude and sea level elevation) and direction of travel information (such as: with positive northern for zero degree from GPS positioning unit, due east is 90 degree, due south is 180 degree, positive west is 270 degree), at the display screen display self position of display unit, and show self-direct of travel.
Step 2, information process unit obtain positional information (such as: longitude, latitude and sea level elevation) from GPS positioning unit, direction of travel information (such as: with positive north for zero degree, due east is 90 degree, due south is 180 degree, and positive west is 270 degree) and obtain travel speed information from in-vehicle electronic system.Under this scene, transmission information can not be set.
Step 3, random acquisition dynamic-configuration channel, obtain repeatedly transmission time interval at random.
Step 4, from GPS positioning unit obtain timing information, time calibration is carried out to system.
The channel that step 5, the information obtained step 2 obtain in step 3 is encoded, and additional information check bit, formation information coding.
Step 6, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol.
Step 7, in modulation symbol, add reference symbol.
Step 8, modulation symbol and reference symbol to be amplified by information type amplification coefficient, after channel mapping and aftertreatment, up-conversion to carrier frequency, by antenna transmission signal.
(2) information reception process
Step one, by the time of system calibration, the signal that antenna receives to be sampled, and carry out analog to digital conversion.
Step 2, channel separation is carried out to the data that step one obtains.
Step 3, all channels are adjudicated whether signal energy is greater than threshold value one by one, if signal energy is greater than threshold value, then channel estimating is carried out to this channel, and carry out equilibrium treatment.If signal energy is less than or equal to threshold value, then skip this channel.
Step 4, the channel data of step 3 to be decoded, and verify.
If step 5 check errors, is designated rub-out signal.If verification is correct, then signal is resolved.
After step 6, this information analysis, positional information parsing obtained, directional information and the word additional information that may exist are sent to display unit.Meanwhile, if after this information analysis, there is relay forwarding to identify, then this information is sent to information transmitting subsystem.
Step 7, display unit, the relative position of display acquisition information, direction, and possible Word message.If the information displaying that display unit receives is error message, then display unit prompting " slow down ".
Step 8, skip to step 3, until process all channels.
2. receive road caution board at the running automobile of such as Fig. 4 to send in wireless information interaction scene, the automobile of traveling is receiving party, and road caution board is information sender, and reciprocal process is as follows:
(1) road caution board information process of transmitting
Step one, system initialization instrument obtain positional information (such as: longitude, latitude and sea level elevation) and directional information (such as: with positive northern for zero degree from GPS positioning unit, due east is 90 degree, due south is 180 degree, and positive west is 270 degree).System initialization instrument arranges transmitting notification information, and the transmitting notification information of this scene is " constructing in section, front, please detour ", can use information encoding 2.
Step 2, obtain idle static configuration channel, delivery time skew and the cycle of transmission.
Step 3, from GPS positioning unit obtain timing information, time calibration is carried out to system.
The channel that step 4, the information obtained step one obtain in step 2 is encoded, and additional information check bit, formation information coding.
Step 5, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol.
Step 6, in modulation symbol, add reference symbol.
Step 7, modulation symbol and reference symbol to be amplified by information type amplification coefficient, channel mapping and aftertreatment.
Step 8, the information transmission that step 7 obtained are to the simplification information transmitting subsystem based on the running information interactive system of radio communication.
Step 9, initialization terminate.Start the simplification information transmitting subsystem based on the running information interactive system of radio communication.
Step 10, simplification information transmitting subsystem based on the running information interactive system of radio communication, obtain GPS location time information, carry out system time calibration.
Step 11, based on the simplification information transmitting subsystem of the running information interactive system of radio communication in the moment in cycle of initializing set, the information up-conversion that step 8 is obtained to carrier frequency, by antenna transmission signal.
(2) information reception process
Step one, by the time of system calibration, the signal that antenna receives to be sampled, and carry out analog to digital conversion.
Step 2, channel separation is carried out to the data that step one obtains.
Step 3, all channels are adjudicated whether signal energy is greater than threshold value one by one, if signal energy is greater than threshold value, then channel estimating is carried out to this channel, and carry out equilibrium treatment.If signal energy is less than or equal to threshold value, then skip this channel.
Step 4, the channel data of step 3 to be decoded, and verify.
If step 5 check errors, is designated rub-out signal.If verification is correct, then signal is resolved.
After step 6, this information analysis, positional information parsing obtained, directional information and the word additional information that may exist are sent to display unit.Meanwhile, if after this information analysis, there is relay forwarding to identify, then this information is sent to information transmitting subsystem.
Step 7, display unit, the relative position of display acquisition information, direction, and possible Word message.If the information displaying that display unit receives is error message, then display unit prompting " slow down ".
Step 8, skip to step 3, until process all channels.
3. send in radio alarm information interaction scene at such as Fig. 5 scene of an automobile accident vehicle, traffic accident vehicle is that (traffic accident information sender is here exactly not necessarily traffic accident vehicle to information sender, if traffic accident vehicle is damaged, then can be help to send by way of vehicle obligation.), driving vehicle is receiving party, and reciprocal process is as follows:
(1) traffic accident vehicle warning information process of transmitting
Step one, display unit obtain positional information (such as: longitude, latitude and sea level elevation) from GPS positioning unit and direction of travel information is NULL (representing static), at the display screen display self position of display unit, and show self-direct of travel.
Step 2, information process unit obtain positional information (longitude, latitude and sea level elevation) from GPS positioning unit, and direction of travel information is NULL (representing static), speed is expressed as 0.And relay forwarding mark is set.Transmitting information is set to scene of an automobile accident and carefully passes through under this scene ", information encoding 1 can be used.
Step 3, obtain idle static configuration channel, delivery time skew and the cycle of transmission.
Step 4, from GPS positioning unit obtain timing information, time calibration is carried out to system.
The channel that step 5, the information obtained step 2 obtain in step 3 is encoded, and additional information check bit, formation information coding.
Step 6, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol.
Step 7, adds reference symbol in modulation symbol.
Step 8, modulation symbol and reference symbol to be amplified by information type amplification coefficient, after channel mapping and aftertreatment, up-conversion to carrier frequency, by antenna transmission signal.
(2) information reception process
Step one, by the time of system calibration, the signal that antenna receives to be sampled, and carry out analog to digital conversion.
Step 2, channel separation is carried out to the data that step one obtains.
Step 3, all channels are adjudicated whether signal energy is greater than threshold value one by one, if signal energy is greater than threshold value, then channel estimating is carried out to this channel, and carry out equilibrium treatment.If signal energy is less than or equal to threshold value, then skip this channel.
Step 4, the channel data of step 3 to be decoded, and verify.
If step 5 check errors, is designated rub-out signal.If verification is correct, then signal is resolved.
After step 6, this information analysis, positional information parsing obtained, directional information and the word additional information that may exist are sent to display unit.Meanwhile, if after this information analysis, there is relay forwarding to identify, then this information is sent to information transmitting subsystem.
Step 7, display unit, the relative position of display acquisition information, direction, and possible Word message.If the information displaying that display unit receives is error message, then display unit prompting " slow down ".
Step 8, skip to step 3, until process all channels.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. based on a running information interactive system for radio communication, it is characterized in that: launch subsystem and comprising GPS positioning unit and display unit, transmitting information setting unit, launching information process unit, from launching information process unit obtaining information and the wireless messages transmitter unit launched at allocated frequency band with wireless signal; GPS positioning unit is connected with transmitting information process unit, display unit, and launch information setting unit and be connected with transmitting information process unit, display unit, wireless messages transmitter unit is connected with transmitting information process unit; The information of wireless messages transmitter unit carries relay forwarding mark;
The reception information process unit that receives information subsystem comprises the wireless messages receiving element of the wireless signal received on allocated frequency band, the information that to get from wireless messages receiving element goes forward side by side row relax, get positional information, directional information and information warning from reception information process unit, and carry out showing and the display unit of alarm; Wireless messages receiving element is connected with reception information process unit, and display unit is connected with reception information process unit; Wireless messages receiving element receives the information of carrying relay forwarding mark, and judges whether this information of relay forwarding.
2., according to a kind of running information interactive system based on radio communication according to claim 1, it is characterized in that: information sends on the different channels of identical frequency band; Channel on frequency band is divided into static configuration channel and dynamic-configuration channel; Static configuration channel is used for periodically sending information; Dynamic-configuration channel is random acquisition, and the short time temporarily takies the channel of transmission information.
3. according to a kind of running information interactive system based on radio communication according to claim 1, it is characterized in that: the information of system interaction comprises relay forwarding mark, information encoding, positional information, direction vector information, additional information identifies, additional information, filling information, check bit; Classifying and numbering is carried out to wireless messages transmitter unit and the mutual information of wireless messages receiving element, the immobilized substance that each numbering is corresponding different.
4., according to a kind of running information interactive system based on radio communication according to claim 1, it is characterized in that: wireless messages receiving element detects reception information on the different channels of identical frequency band.
5., based on a running information emission coefficient for radio communication, it is characterized in that: comprise position and information initializing unit, GPS timing information acquiring unit, row relax of going forward side by side from position and information initializing unit obtaining information transmitting information process unit, from transmitting information process unit obtaining information and the wireless messages transmitter unit launched at allocated frequency band with wireless signal; Wireless messages transmitter unit is connected with transmitting information process unit, launches information process unit and is connected with information initializing unit with GPS timing information acquiring unit, position; The information of wireless messages transmitter unit carries relay forwarding mark.
6., according to a kind of running information emission coefficient based on radio communication according to claim 5, it is characterized in that: information sends on the different channels of identical frequency band; Channel on frequency band is divided into static configuration channel and dynamic-configuration channel; Static configuration channel is used for periodically sending information; Dynamic-configuration channel is random acquisition, and the short time temporarily takies the channel of transmission information.
7. according to a kind of running information emission coefficient based on radio communication according to claim 5, it is characterized in that: the information of transmitting comprises relay forwarding mark, information encoding, positional information, direction vector information, additional information identifies, additional information, filling information, check bit; Classifying and numbering is carried out to the information that wireless messages transmitter unit is launched, the immobilized substance that each numbering is corresponding different.
8., based on an information transmitting method for the running information interactive system of radio communication, the method comprises the following steps:
Step one, display unit obtain positional information and direction of travel information from GPS positioning unit, at the display screen display self position of display unit, and show self-direct of travel;
Step 2, transmitting information process unit obtain positional information from GPS positioning unit, direction of travel information, and obtain travel speed information from in-vehicle electronic system; Arrange the transmitting information content, the information content can be character string, can be the information encoding meeting pre-defined rule; Also can not arrange the transmitting information content, this situation only sends essential information;
Step 3 is if send multidate information, then the idle dynamic-configuration channel of random acquisition, obtains repeatedly transmission time interval at random; If transmission periodical information, then the idle static configuration channel of random acquisition, delivery time skew and the cycle of transmission;
Step 4, from GPS positioning unit obtain timing information, time calibration is carried out to system;
The channel that step 5, the information obtained step 2 obtain in step 3 is encoded, and additional information check bit, formation information coding;
Step 6, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol;
Step 7, in modulation symbol, add reference symbol;
Step 8, modulation symbol and reference symbol to be amplified by information type amplification coefficient, after channel mapping and aftertreatment, up-conversion to carrier frequency, by antenna transmission signal.
9., based on a message receiving method for the running information interactive system of radio communication, the method comprises the following steps:
Step one, by the time of system calibration, the signal that antenna receives to be sampled, and carry out analog to digital conversion;
Step 2, channel separation is carried out to the data that step one obtains;
Step 3, all channels are adjudicated whether signal energy is greater than threshold value one by one, if signal energy is greater than threshold value, then channel estimating is carried out to this channel, and carry out equilibrium treatment; If signal energy is less than or equal to threshold value, then skip this channel;
Step 4, the channel data of step 3 to be decoded, and verify;
If step 5 check errors, is designated rub-out signal; If verification is correct, then signal is resolved;
After step 6, this signal resolution, will positional information, directional information and the character string that may exist obtained be resolved or the information encoding meeting pre-defined rule be sent to display unit; Meanwhile, if after this signal resolution, there is relay forwarding to identify, then the information after parsing is sent to transmitting subsystem;
The relative position of step 7, display unit display acquisition information, direction and the character string that may exist or meet the information encoding of pre-defined rule; If the information displaying that display unit receives is error message, then display unit prompting " slow down "; Display unit judges, if this information is urgent or important information, then with flickering display or voice mode warning;
Step 8, skip to step 3, until process all channels.
10., based on a running information emission coefficient method for radio communication, the method comprises the following steps:
Step one, system initialization instrument obtain positional information and directional information from GPS positioning unit, and system initialization instrument arranges transmitting notification information, and notification information can be character string, also can be the information encoding meeting pre-defined rule;
Step 2, acquisition static configuration channel, delivery time skew and channel send the cycle;
Step 3, from GPS positioning unit obtain timing information, time calibration is carried out to system;
Step 4, the information obtained step one, the channel that obtains in step 2 are encoded, and additional information check bit, forms information coding;
Step 5, to information coding with after scrambler scrambling, carry out modulates baseband signals, formed modulation symbol;
Step 6, in modulation symbol, add reference symbol;
Step 7, modulation symbol and reference symbol to be amplified by information type amplification coefficient, channel mapping and aftertreatment;
Step 8, the information transmission that step 7 obtained are to the running information emission coefficient based on radio communication;
Step 9, initialization terminate, and start the running information emission coefficient based on radio communication;
Step 10, running information emission coefficient based on radio communication, obtain GPS location time information, carry out system time calibration;
Step 11, based on the running information emission coefficient of radio communication in the moment in cycle of initializing set, the information up-conversion that step 8 is obtained to carrier frequency, by antenna transmission signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372468.XA CN102622905B (en) | 2011-11-09 | 2011-11-09 | Running information interaction system based on wireless communication and running information interaction method based on wireless communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372468.XA CN102622905B (en) | 2011-11-09 | 2011-11-09 | Running information interaction system based on wireless communication and running information interaction method based on wireless communication |
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| Publication Number | Publication Date |
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| CN102622905A CN102622905A (en) | 2012-08-01 |
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| DE102017216124A1 (en) * | 2017-09-13 | 2019-03-14 | Robert Bosch Gmbh | Method for generating a traffic control information and traffic guidance system |
| CN109617571B (en) * | 2018-11-16 | 2021-10-22 | 中兴通讯股份有限公司 | Signal processing device and method for realizing signal scheduling |
| CN112185169A (en) * | 2019-07-03 | 2021-01-05 | 徐洪波 | Accident active early warning method and system |
| CN111474878B (en) * | 2020-04-07 | 2021-07-13 | 张根兵 | Electric drive vehicle control delay optimization method based on traversal cycle and electronic equipment |
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| US5864305A (en) * | 1994-03-04 | 1999-01-26 | Ab Volvo | Traffic information system |
| CN101099346A (en) * | 2005-01-07 | 2008-01-02 | 皇家飞利浦电子股份有限公司 | Communication device and communication system as well as method of communication between and among mobile nodes such as vehicles |
| CN102171740A (en) * | 2008-10-01 | 2011-08-31 | 罗伯特·博世有限公司 | Method for displaying a warning message in a vehicle |
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| JP2001307291A (en) * | 2000-04-21 | 2001-11-02 | Matsushita Electric Ind Co Ltd | Road-vehicle-communication system and onboard communication device |
| JP2003187386A (en) * | 2001-12-18 | 2003-07-04 | Nec Access Technica Ltd | Vics information transmitter-receiver |
| KR20070043788A (en) * | 2004-07-22 | 2007-04-25 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Communication device and communication system as well as method of communication between and among mobile nodes |
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| US5864305A (en) * | 1994-03-04 | 1999-01-26 | Ab Volvo | Traffic information system |
| CN101099346A (en) * | 2005-01-07 | 2008-01-02 | 皇家飞利浦电子股份有限公司 | Communication device and communication system as well as method of communication between and among mobile nodes such as vehicles |
| CN102171740A (en) * | 2008-10-01 | 2011-08-31 | 罗伯特·博世有限公司 | Method for displaying a warning message in a vehicle |
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