CN102622905A - 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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- CN102622905A CN102622905A CN201110372468XA CN201110372468A CN102622905A CN 102622905 A CN102622905 A CN 102622905A CN 201110372468X A CN201110372468X A CN 201110372468XA CN 201110372468 A CN201110372468 A CN 201110372468A CN 102622905 A CN102622905 A CN 102622905A
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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 in the vehicle electric field, relate to a kind of running information interactive system and method based on radio communication.
Technical background
According to statistics, the number that is killed in an automobile accident every year of China surpasses 100,000.The traffic safety situation of China is very severe, and statistics shows, the people wheel of losing one's life was just arranged in per 5 minutes, a people all can be arranged in per 1 minute because traffic hazard and permanent disability.Reach tens billion of units because of the economic loss that traffic hazard caused every year.
In recent years, along with improving constantly of living standards of the people, the automobile pollution of China was constantly soaring.This is to our present control of traffic and road, and traffic safety has proposed new test.We need take new effective measure, reduce the traffic accident rate, the protection people's the security of the lives and property.
In the vehicle ', driver's anticipation is very important to traffic safety.Investigating from traffic accident, much is because the driver does not in time find ambient conditions, fails in time to take measures and causes.For example, take a sudden turn on the highway near the mountain, fail to find that the opposite sends a car; Driving at night on the highway, knocking into the back continuously after getting into an accident; Road dangerous situation bulletin not to be noted and go out highway etc.
At present, the automobilist has two kinds of approach to the perception of ambient conditions, and a kind of is light, i.e. vision, various guideboards, the visual determination of surrounding road condition, the car light that night sends a car in the opposite etc.Second kind is the sense of hearing, the tucket of promptly driving a vehicle on every side.In certain situation, for example, the rainy day, perhaps night, when the vision sense of hearing was limited, these two kinds of approach often were not enough to guarantee driver's traffic safety.The third approach is provided, the wireless messages caution here.
Existing vehicle-bone global positioning system terminal is the passive satellite-signal of accepting, and storing map information is some static position warning information (speed limit signs), therefore can not obtain current intelligence information on every side.
This programme connects global positioning system terminal to loading onto sender unit on the car, and the positional information of the global positioning system terminal form with broadcasting is sent, and the vehicle of the homologous ray of pretending so on every side just can obtain the positional information of this car.
In addition, at the road sign billboard, the warning information emitter is installed.Also can place the warning information emitter temporarily, be used to remind passing automobilist in the road construction position.
For example, when on highway near the mountain, taking a sudden turn, the vehicle of Facing Movement sends positional information in advance, and then this two cars is not being seen under the other side's the situation, just can know have subtend to send a car through global positioning system terminal, can in time slow down and keep away row.
For example, driving at night on the highway, after getting into an accident, in time the start signal emitter is warned the back vehicle, so just can under the limited situation of vision, in time notify dangerous.
Also can on the road caution sign, adorn the GPS position transmitters.
For example, when the road dangerous situation is arranged, use the GPS position transmitters, send the dangerous situation caution, just can avoid driver's general idea to get into an accident.
For example, in some highway sections, the advertising message in an area of sign, "
*Welcome you, have here ....”
Summary of the invention
Technical matters to be solved by this invention is to above-mentioned traffic safety problem, and a kind of running information wireless interaction system is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of running information interactive system based on radio communication.It is characterized in that: comprise GPS location and display unit, obtain positional information from the global location unit and carry out the information processed processing unit, obtain information and with the wireless messages transmitter unit of wireless signal in allocated frequency band emission from information process unit.
Simultaneously, the invention also discloses a kind of method of the running information interactive system based on radio communication, it is characterized in that:
1. one kind based on the information of the running information interactive system of radio communication emission subsystem, it is characterized in that: comprise GPS location and display unit, obtain positional information from the global location unit and carry out the information processed processing unit, obtain information and with the wireless messages transmitter unit of wireless signal in the allocated frequency band emission from information process unit.
2. message pick-up subsystem based on the running information interactive system of radio communication; It is characterized in that: comprise the wireless messages receiving element that receives the wireless signal on the allocated frequency band, get access to information and carry out the information processed processing unit, get access to positional information, directional information and information warning etc. from information process unit from the wireless messages receiving element, and the display unit that shows and alarm.
3. one kind based on the simplification information of the running information interactive system of radio communication emission subsystem, it is characterized in that: comprise the position initialization unit that is used for initial position setting, GPS positioning system timing information acquiring unit, obtain positional information from the position initialization unit and carry out the information processed processing unit, obtain information and with the wireless messages transmitter unit of wireless signal in the allocated frequency band emission from information process unit.
4. the information emission subsystem based on the running information interactive system of radio communication carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, display unit are obtained positional information (for example: longitude, latitude and sea level elevation) and direction of travel information from the GPS positioning unit, and (for example: with positive north is zero degree; Due east is 90 degree; The due south is 180 degree; Positive west is 270 degree), on the display screen of display unit, show self position, and show self-direct of travel.
Step 2, information process unit obtain positional information (for example: longitude, latitude and sea level elevation) from the GPS positioning unit; (for example: with positive north is zero degree to direction of travel information; Due east is 90 degree; The due south is 180 degree, and positive west is 270 degree) and obtain travel speed information from in-vehicle electronic system.
Step 3, obtain the dynamic-configuration channel at random, obtain transmission time interval at random twice.
Step 4, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 5, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 6, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 7, in modulation symbol, add reference symbol.
Step 8, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation, up-conversion transmits through antenna to carrier frequency.
5. the message pick-up subsystem based on the running information interactive system of radio communication carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, the signal that antenna receives is sampled, and carry out analog to digital conversion by time of system calibration.
Step 2, the data that step 1 is obtained are carried out channel separation.
Step 3, all channels are adjudicated one by one whether signal energy is greater than threshold value, if signal energy is arranged, then this channel is carried out channel estimating, and carry out equilibrium treatment greater than threshold value.If signal energy smaller or equal to threshold value, is then skipped this channel.
Step 4, the channel data of step 3 is deciphered, and carried out verification.
If the step 5 check errors is designated rub-out signal.If verification is correct, then signal is resolved.
Behind step 6, this information analysis, positional information, directional information that parsing is obtained and the literal additional information that possibly exist are sent to display unit.Simultaneously,, the sign of forwarding is arranged, then this information information that is sent to is sent submodule if behind this information analysis.
Step 7, display unit, the relative position of demonstration acquired information, direction, and possible Word message.If the information that display unit receives is shown as error message, then display unit prompting " deceleration is gone slowly ".The display unit judgement if this information is urgent or important information, is then warned with the mode of flicker demonstration or sound.
Step 8, skip to step 3, until handling all channels.
6. the simplification information emission subsystem based on the running information interactive system of radio communication carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, system initialization appearance obtain positional information (for example: longitude, latitude and sea level elevation) and directional information (for example: with positive north is zero degree, and due east is 90 degree, and the due south is 180 degree, and positive west is 270 degree) from the GPS positioning unit.
Step 2, obtain the static configuration channel, and channel sends the cycle.
Step 3, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 4, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 5, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 6, in modulation symbol, add reference symbol.
Step 7, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation.
Step 8, adjustment symbol transmission that step 7 is obtained are to the simplification information emission subsystem based on the running information interactive system of radio communication.
Step 9, initialization finish.Startup is based on the simplification information emission subsystem of the running information interactive system of radio communication.
Step 10, based on the simplification information emission subsystem of the running information interactive system of radio communication, obtain GPS information positioning time, carry out the system time calibration.
Step 11, based on the simplification information emission subsystem of the running information interactive system of radio communication cycle of initializing set constantly, the modulation symbol up-conversion of initializing set to carrier frequency, is transmitted through antenna.
7. based on the information emission subsystem of the running information interactive system of radio communication, the simplification information emission subsystem based on the running information interactive system of radio communication before modulation symbol is shone upon, needs amplify information by information type.General information warning, advertised information, amplification coefficient is β 0, making the receiving terminal in 200 meters is that Block Error Rate is less than 1% under 400 kilometers/hour conditions at relative velocity.Danger warning information, amplification coefficient is β, making the receiving terminal in 400 meters is that Block Error Rate is less than 1% under 400 kilometers/hour conditions at relative velocity.
8. transmitting terminal can carry relaying for information and transmit sign.Receiving end judges that when receiving that carrying relaying transmits the information of sign if send the position distance less than 150 meters or greater than 200 kilometers with signal, then ignoring should sign.If send the position distance more than or equal to 150 meters or smaller or equal to 200 kilometers with signal, then relaying is transmitted this information.The information of carrying relaying forwarding sign is that static channel is periodically sent information.Relaying is transmitted, and at the prime information channel, transmits by the cycle of prime information and skew constantly.
9. according in claim 1, claim 2 and the claim 3, the mutual message structure of transmitting terminal and receiving end defines:
Struct{
Transmit sign;
Information encoding;
Positional information; (comprising: longitude, latitude and sea level elevation etc.)
Directional information;
The additional information sign;
Additional information;
Filling information; (making information digit is 8 or 16 integral multiple, is convenient to handle)
Check bit;
}
The mutual information of transmitting terminal and receiving end can be carried out classifying and numbering, and each numbers corresponding different fixed content.Can reduce the information transmitted amount of eating dishes without rice or wine like this, show corresponding immobilized substance by numbering, be convenient to read at display unit.For example: numbering 1, corresponding " scene of an automobile accident, careful row slows down "; Numbering 2, corresponding " the road ahead construction please be detoured "; Numbering 3, corresponding " the road ahead construction is slowed down and is passed through ", etc.
10. information is sent can being divided on the frequency band of different channels, and receiving end detects reception information on same frequency band; Be divided into static configuration channel and dynamic channel at channel on the frequency band; The static configuration channel is used for periodically transmission information; Dynamic channel is for obtain at random, and the short time temporarily takies 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 the information interaction real-time is good, and is safety quick.For example, the automobile that speed per hour is 100 kilometers/hour, per second are advanced 27.8 meters; And two speed per hours of relative direction are 100 kilometers/hour automobile, and per second is advanced 55.6 meters relatively.Therefore the real-time of information interaction is extremely important.
3, to the exchange message classification, with different channels, the different energy rank is sent, and can improve security, and minimizing information and signal disturb.
4, signal relay function can make emergence message blaze abroad in the short time.
In sum, to transmit real-time high and operation cost is low for low, the information of novel and reasonable design of the present invention, system complexity.In the highway of state-owned hundreds of thousands kilometer, world's highway total kilometrage surpasses gigameter especially, and these kilometers lack the security information caution system mostly.The invention discloses a kind of running information interactive system and method, make the clearer understanding of automobilist's ability environment on every side, possible dangerous situation is made in advance judged through wireless information interaction based on radio communication.Can effectively reduce the dangerous probability that takes place, have remarkable economic efficiency and social benefit.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is the principle of work block diagram of information emission subsystem that the present invention is based on the running information interactive system of radio communication.
Fig. 2 is the principle of work block diagram of simplification information emission subsystem that the present invention is based on the running information interactive system of radio communication.
Fig. 3 is the principle of work block diagram of message pick-up subsystem that the present invention is based on the running information interactive system of radio communication.
Fig. 4 is the wireless information interaction synoptic diagram between running automobile of the present invention.
Fig. 5 sends the wireless messages synoptic diagram for running automobile receives road caution board.
Fig. 6 is wireless warning information synoptic diagram for the scene of an automobile accident vehicle sends.
Fig. 7 is a position display system display message synoptic diagram in the car.
Embodiment
The present invention can be divided into three different subsystems, respectively like Fig. 1, Fig. 2, shown in Figure 3.Like Fig. 1 is the information emission subsystem based on the running information interactive system of radio communication; As Fig. 2 be based on the simplification information emission subsystem of the running information interactive system of radio communication and as Fig. 3 be message pick-up subsystem based on the running information interactive system of radio communication.Fig. 2 is a kind of simplified system, is used to reduce system cost.
1. in like the wireless information interaction scene between the running automobile of Fig. 4, vehicle can become take over party or transmit leg, and reciprocal process is divided as follows:
(1) information process of transmitting:
Step 1, display unit are obtained positional information (for example: longitude, latitude and sea level elevation) and direction of travel information from the GPS positioning unit, and (for example: with positive north is zero degree; Due east is 90 degree; The due south is 180 degree; Positive west is 270 degree), on the display screen of display unit, show self position, and show self-direct of travel.
Step 2, information process unit obtain positional information (for example: longitude, latitude and sea level elevation) from the GPS positioning unit; (for example: with positive north is zero degree to direction of travel information; Due east is 90 degree; The due south is 180 degree, and positive west is 270 degree) and obtain travel speed information from in-vehicle electronic system.
Step 3, obtain the dynamic-configuration channel at random, obtain transmission time interval at random twice.
Step 4, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 5, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 6, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 7, in modulation symbol, add reference symbol.
Step 8, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation, up-conversion transmits through antenna to carrier frequency.
(2) message pick-up process
Step 1, the signal that antenna receives is sampled, and carry out analog to digital conversion by time of system calibration.
Step 2, the data that step 1 is obtained are carried out channel separation.
Step 3, all channels are adjudicated one by one whether signal energy is greater than threshold value, if signal energy is arranged, then this channel is carried out channel estimating, and carry out equilibrium treatment greater than threshold value.If signal energy smaller or equal to threshold value, is then skipped this channel.
Step 4, the channel data of step 3 is deciphered, and carried out verification.
If the step 5 check errors is designated rub-out signal.If verification is correct, then signal is resolved.
Behind step 6, this information analysis, positional information, directional information that parsing is obtained and the literal additional information that possibly exist are sent to display unit.Simultaneously,, the sign of forwarding is arranged, then this information information that is sent to is sent submodule if behind this information analysis.
Step 7, display unit, the relative position of demonstration acquired information, direction, and possible Word message.If the information that display unit receives is shown as error message, then display unit prompting " deceleration is gone slowly ".
Step 8, skip to step 3, until handling all channels.
2. receive road caution board at the running automobile like Fig. 5 and send in the wireless information interaction scene, traveling automobile is the receiving party, and road caution board is an information sender, and reciprocal process is divided as follows:
(1) road caution board information process of transmitting
Step 1, system initialization appearance obtain positional information (for example: longitude, latitude and sea level elevation) and directional information (for example: with positive north is zero degree, and due east is 90 degree, and the due south is 180 degree, and positive west is 270 degree) from the GPS positioning unit.
Step 2, obtain the static configuration channel, and channel sends the cycle.
Step 3, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 4, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 5, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 6 adds reference symbol in modulation symbol.
Step 7, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation.
Step 8, adjustment symbol transmission that step 7 is obtained are to the simplification information emission subsystem based on the running information interactive system of radio communication.
Step 9, initialization finish.Startup is based on the simplification information emission subsystem of the running information interactive system of radio communication.
Step 10, based on the simplification information emission subsystem of the running information interactive system of radio communication, obtain GPS information positioning time, carry out the system time calibration.
Step 11, based on the simplification information emission subsystem of the running information interactive system of radio communication cycle of initializing set constantly, the modulation symbol up-conversion of initializing set to carrier frequency, is transmitted through antenna.
(2) message pick-up process
Step 1, the signal that antenna receives is sampled, and carry out analog to digital conversion by time of system calibration.
Step 2, the data that step 1 is obtained are carried out channel separation.
Step 3, all channels are adjudicated one by one whether signal energy is greater than threshold value, if signal energy is arranged, then this channel is carried out channel estimating, and carry out equilibrium treatment greater than threshold value.If signal energy is then skipped this channel less than in equaling threshold value.
Step 4, the channel data of step 3 is deciphered, and carried out verification.
If the step 5 check errors is designated rub-out signal.If verification is correct, then signal is resolved.
Behind step 6, this information analysis, positional information, directional information that parsing is obtained and the literal additional information that possibly exist are sent to display unit.Simultaneously,, the sign of forwarding is arranged, then this information information that is sent to is sent submodule if behind this information analysis.
Step 7, display unit, the relative position of demonstration acquired information, direction, and possible Word message.If the information that display unit receives is shown as error message, then display unit prompting " deceleration is gone slowly ".
Step 8, skip to step 3, until handling all channels.
3. sending in the wireless warning information interaction scenarios like Fig. 6 scene of an automobile accident vehicle, the traffic accident vehicle is an information sender, and driving vehicle is the receiving party, and reciprocal process is divided as follows:
(1) traffic accident vehicle warning information process of transmitting
Step 1, display unit are obtained positional information (for example: longitude, latitude and sea level elevation) and direction of travel information is NULL (representing static) from the GPS positioning unit, on the display screen of display unit, show self position, and show self-direct of travel.
Step 2, information process unit obtain positional information (longitude, latitude and sea level elevation) from the GPS positioning unit, and direction of travel information is that NULL (representing static), velometer are shown 0.
Step 3, obtain available periodicity static configuration channel at random.
Step 4, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 5, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 6, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 7 adds reference symbol in modulation symbol.
Step 8, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation, up-conversion transmits through antenna to carrier frequency.
(2) message pick-up process
Step 1, the signal that antenna receives is sampled, and carry out analog to digital conversion by time of system calibration.
Step 2, the data that step 1 is obtained are carried out channel separation.
Step 3, all channels are adjudicated one by one whether signal energy is greater than threshold value, if signal energy is arranged, then this channel is carried out channel estimating, and carry out equilibrium treatment greater than threshold value.If signal energy smaller or equal to threshold value, is then skipped this channel.
Step 4, the channel data of step 3 is deciphered, and carried out verification.
If the step 5 check errors is designated rub-out signal.If verification is correct, then signal is resolved.
Behind step 6, this information analysis, positional information, directional information that parsing is obtained and the literal additional information that possibly exist are sent to display unit.Simultaneously,, the sign of forwarding is arranged, then this information information that is sent to is sent submodule if behind this information analysis.
Step 7, display unit, the relative position of demonstration acquired information, direction, and possible Word message.If the information that display unit receives is shown as error message, then display unit prompting " deceleration is gone slowly ".
Step 8, skip to step 3, until handling all channels.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (10)
1. one kind based on the information of the running information interactive system of radio communication emission subsystem, it is characterized in that: comprise GPS location and display unit, obtain positional information from the global location unit and carry out the information processed processing unit, obtain information and with the wireless messages transmitter unit of wireless signal in the allocated frequency band emission from information process unit.
2. message pick-up subsystem based on the running information interactive system of radio communication; It is characterized in that: comprise the wireless messages receiving element that receives the wireless signal on the allocated frequency band, get access to information and carry out the information processed processing unit, get access to positional information, directional information and information warning etc. from information process unit from the wireless messages receiving element, and the display unit that shows and alarm.
3. one kind based on the simplification information of the running information interactive system of radio communication emission subsystem, it is characterized in that: comprise the position initialization unit that is used for initial position setting, GPS positioning system timing information acquiring unit, obtain positional information from the position initialization unit and carry out the information processed processing unit, obtain information and with the wireless messages transmitter unit of wireless signal in the allocated frequency band emission from information process unit.
4. the information emission subsystem of a kind of running information interactive system based on radio communication as claimed in claim 1 carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, display unit are obtained positional information (for example: longitude, latitude and sea level elevation) and direction of travel information from the GPS positioning unit, and (for example: with positive north is zero degree; Due east is 90 degree; The due south is 180 degree; Positive west is 270 degree), on the display screen of display unit, show self position, and show self-direct of travel.
Step 2, information process unit obtain positional information (for example: longitude, latitude and sea level elevation) from the GPS positioning unit; (for example: with positive north is zero degree to direction of travel information; Due east is 90 degree; The due south is 180 degree, and positive west is 270 degree) and obtain travel speed information from in-vehicle electronic system.
Step 3, obtain the dynamic-configuration channel at random, obtain transmission time interval at random twice.
Step 4, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 5, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 6, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 7, in modulation symbol, add reference symbol.
Step 8, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation, up-conversion transmits through antenna to carrier frequency.
5. the message pick-up subsystem of a kind of running information interactive system based on radio communication as claimed in claim 2 carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, the signal that antenna receives is sampled, and carry out analog to digital conversion by time of system calibration.
Step 2, the data that step 1 is obtained are carried out channel separation.
Step 3, all channels are adjudicated one by one whether signal energy is greater than threshold value,, and carry out equilibrium treatment if signal energy greater than threshold value, is then carried out channel estimating to this channel.If signal energy smaller or equal to threshold value, is then skipped this channel.
Step 4, the channel data of step 3 is deciphered, and carried out verification.
If the step 5 check errors is designated rub-out signal.If verification is correct, then signal is resolved.
Behind step 6, this information analysis, positional information, directional information that parsing is obtained and the literal additional information that possibly exist are sent to display unit.Simultaneously,, the sign of forwarding is arranged, then this information information that is sent to is sent submodule if behind this information analysis.
Step 7, display unit show the relative position of acquired information, direction, and possible Word message.If the information that display unit receives is shown as error message, then display unit prompting " deceleration is gone slowly ".
Step 8, skip to step 3, until handling all channels.
6. the simplification information emission subsystem of a kind of running information interactive system based on radio communication as claimed in claim 3 carries out information interactive method, it is characterized in that this method may further comprise the steps:
Step 1, system initialization appearance obtain positional information (for example: longitude, latitude and sea level elevation) and directional information (for example: with positive north is zero degree, and due east is 90 degree, and the due south is 180 degree, and positive west is 270 degree) from the GPS positioning unit.
Step 2, obtain the static configuration channel, and channel sends the cycle.
Step 3, obtain timing information, system is carried out time calibration from the GPS positioning unit.
Step 4, the information that step 2 is obtained are encoded on the channel that step 3 is obtained, and the additional information check bit, formation information coding.
Step 5, the information of step 4 coding is carried out the baseband signal modulation, form modulation symbol.
Step 6, in modulation symbol, add reference symbol.
Step 7, modulation symbol and reference symbol are carried out the channel mapping, and send out large-signal by the information type amplification coefficient, modulation.
Step 8, adjustment symbol transmission that step 7 is obtained are to the simplification information emission subsystem based on the running information interactive system of radio communication.
Step 9, initialization finish.Startup is based on the simplification information emission subsystem of the running information interactive system of radio communication.
Step 10, based on the simplification information emission subsystem of the running information interactive system of radio communication, obtain GPS information positioning time, carry out the system time calibration.
Step 11, based on the simplification information emission subsystem of the running information interactive system of radio communication cycle of initializing set constantly, the modulation symbol up-conversion of initializing set to carrier frequency, is transmitted through antenna.
7. according to (a kind of information emission subsystem of the running information interactive system based on radio communication in claim 1 and the claim 3; A kind of simplification information emission subsystem of the running information interactive system based on radio communication); Before modulation symbol is shone upon, need information to be amplified by information type.General information warning, advertised information, amplification coefficient is β
0, such as: making the receiving terminal in 400 meters is that Block Error Rate is less than 1% under 400 kilometers/hour conditions at relative velocity.Danger warning information, amplification coefficient are β
1, such as, making the receiving terminal in 600 meters is that Block Error Rate is less than 1% under 400 kilometers/hour conditions at relative velocity.
8. according in claim 1, claim 2 and the claim 3, transmitting terminal can carry relaying for information and transmit sign.Receiving end judges that when receiving that carrying relaying transmits the information of sign if send the position distance less than 150 meters or greater than 200 kilometers with signal, then ignoring should sign.If send the position distance more than or equal to 150 meters or smaller or equal to 200 kilometers with signal, then relaying is transmitted this information.The information of carrying relaying forwarding sign is that static channel is periodically sent information.Relaying is transmitted, and at the prime information channel, transmits by the cycle of prime information and skew constantly.
9. according in claim 1, claim 2 and the claim 3, the mutual message structure of transmitting terminal and receiving end defines:
Struct{
Transmit sign;
Information encoding;
Positional information; (comprising: longitude, latitude and sea level elevation etc.)
Directional information;
The additional information sign;
Additional information;
Filling information; (making information digit is 8 or 16 integral multiple, is convenient to handle)
Check bit;
}
The mutual information of transmitting terminal and receiving end can be carried out classifying and numbering, and each numbers corresponding different fixed content.Can reduce the information transmitted amount of eating dishes without rice or wine like this, show corresponding immobilized substance by numbering, be convenient to read at display unit.For example: numbering 1, corresponding " scene of an automobile accident, careful row slows down "; Numbering 2, corresponding " the road ahead construction please be detoured "; Numbering 3, corresponding " school slows down and passes through ", etc.The information process unit of message pick-up subsystem judges whether to pass through the alarm place through positional information and the direct of travel of self that receives, if do not pass through, then display unit shows information warning now; If pass through, then reduce the demonstration right of priority of this information.
10. according in claim 1, claim 2 and the claim 3, information is sent on a frequency band, and receiving end detects reception information on same frequency band; Be divided into static configuration channel and dynamic channel at channel on the frequency band; The static configuration channel is used for periodically transmission information; Dynamic channel is for obtain at random, and the short time temporarily takies transmission information.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN109493622A (en) * | 2017-09-13 | 2019-03-19 | 罗伯特·博世有限公司 | For generating the method and traffic guidance system of traffic guiding information |
| CN109617571A (en) * | 2018-11-16 | 2019-04-12 | 中兴通讯股份有限公司 | A kind of signal processing apparatus and its method for realizing signal dispatching |
| CN111474878A (en) * | 2020-04-07 | 2020-07-31 | 张根兵 | Electric drive vehicle control delay optimization method based on traversal cycle and electronic equipment |
| CN112185169A (en) * | 2019-07-03 | 2021-01-05 | 徐洪波 | Accident active early warning method and system |
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| CN102622905B (en) | 2015-06-17 |
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