CN105631400A - Information processing method, information processing device, intelligent module and vehicle-mounted terminal - Google Patents
Information processing method, information processing device, intelligent module and vehicle-mounted terminal Download PDFInfo
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- CN105631400A CN105631400A CN201510837087.2A CN201510837087A CN105631400A CN 105631400 A CN105631400 A CN 105631400A CN 201510837087 A CN201510837087 A CN 201510837087A CN 105631400 A CN105631400 A CN 105631400A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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Abstract
The invention provides an information processing method, an information processing device, an intelligent module and a vehicle-mounted terminal. The information processing method includes the following steps that: first wireless signals from other intelligent modules are received; the speed of the other intelligent modules relative to the intelligent module is calculated according to the Doppler frequency shift of the first wireless signals, and distances between the other intelligent modules and the intelligent module are calculated according to the received signal strength indicator of the first wireless signals; and the speed and the distances are transmitted to a server, so that the server can process the speed and distances. With the information processing method provided by the technical schemes of the invention adopted, the position and the speed of a vehicle in a running process can be accurately determined.
Description
Technical field
The present invention relates to areas of information technology, in particular to a kind of information processing method, information processor, intelligent object and car-mounted terminal.
Background technology
At present, vehicle accident without on-site supervision is carried out investigation and evidence collection and there is great difficulty, owing to there is no on-the-spot evidence, and occur vehicle accident user often each sticks to his own version or argument, accordingly, it would be desirable to the investigation and evidence collection of long period just can determine that the responsible party of vehicle accident, so, not only take time and effort, the road congestion that vehicle accident occurs also can be caused simultaneously to cause traffic congestion.
And the responsible party of the determination vehicle accident in correlation technique is typically all the GPS (GlobalPositioningSystem by vehicle loading, global positioning system) obtain the position of vehicle, but, owing to GPS location exists error, sometimes up to tens meters, this error likely results in the erroneous judgement of traffic accident responsibility.
Therefore, at vehicle when there is vehicle accident, how to accurately determine vehicle position in the process of moving and speed becomes current problem demanding prompt solution.
Summary of the invention
The present invention is based on the problems referred to above, it is proposed that a kind of new technical scheme, it is possible to accurately determine vehicle position in the process of moving and speed.
In view of this, a first aspect of the present invention proposes a kind of information processing method, for intelligent object, including: receive the first wireless signal from other intelligent objects; Doppler frequency shift according to described first wireless signal, calculate the speed of the described relatively described intelligent object of other intelligent objects, and the received signal strength index according to described first wireless signal, calculate described distance between other intelligent objects and described intelligent object; Described speed and described distance are sent to server, for described server, described speed and described distance is processed.
In this technical scheme, the first wireless signal of other intelligent objects is received by intelligent object, Doppler frequency shift and received signal strength index (RSSI further according to the first wireless signal, ReceivedSignalStrengthIndication), can relatively accurately calculate the speed of the relatively intelligent module of other intelligent objects, and the distance between intelligent object and other intelligent objects, avoid and detect, by GPS of the prior art, the error that speed is brought, thus improve the accuracy of the speed of detection vehicle. Such as, intelligent object is arranged on road side, and other intelligent objects are arranged in vehicle, and when vehicle travels in the road, the intelligent object of road side can calculate the travel speed of this vehicle and the distance of this vehicle distances intelligent object. Or intelligent object and other intelligent objects are separately positioned in two vehicles, it is also possible to calculate the speed of another vehicle relatively of the arbitrary vehicle in these two vehicles and the distance between these two vehicles according to the first wireless signal received. Additionally, speed and distance are sent to server, server can in conjunction with multiple intelligent objects (include above-mentioned in other intelligent objects and intelligent object) speed that sends and distance relatively accurately determine the mobile message of this intelligent object, such as, the position of this intelligent object, owing to being arranged in vehicle by this intelligent object, then may determine that the position of vehicle.
In technique scheme, preferably, also include: launch the second wireless signal to other intelligent objects described, determine the mobile message of described intelligent object other intelligent objects relatively described according to described second wireless signal for other intelligent objects described, wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
In this technical scheme, can launch the second wireless signal to other intelligent objects, then other intelligent objects can according to the speed of the second wireless signal computational intelligence module received relatively other intelligent objects and distance (i.e. the mobile message of relative other intelligent objects of intelligent object) between the two. It addition, the emissive porwer of the second wireless signal of intelligent object transmitting and tranmitting frequency are invariable, to facilitate the accuracy of the calculated result of calculation of other intelligent objects.
A second aspect of the present invention proposes a kind of information processor, for intelligent object, including: receive unit, for receiving the wireless signal from vehicle; Computing unit, for the Doppler frequency shift according to described wireless signal, calculate the speed of the relatively described intelligent object of described vehicle and the received signal strength index according to described wireless signal, calculate the distance between described vehicle and described intelligent object; Transmitting element, for sending described speed and described distance to server, processes described speed and described distance for described server.
In this technical scheme, in this technical scheme, the first wireless signal of other intelligent objects is received by intelligent object, Doppler frequency shift and received signal strength index (RSSI further according to the first wireless signal, ReceivedSignalStrengthIndication), can relatively accurately calculate the speed of the relatively intelligent module of other intelligent objects, and the distance between intelligent object and other intelligent objects, avoid and detect, by GPS of the prior art, the error that speed is brought, thus improve the accuracy of the speed of detection vehicle. Such as, intelligent object is arranged on road side, and other intelligent objects are arranged in vehicle, and when vehicle travels in the road, the intelligent object of road side can calculate the travel speed of this vehicle and the distance of this vehicle distances intelligent object. Or intelligent object and other intelligent objects are separately positioned in two vehicles, it is also possible to calculate the speed of another vehicle relatively of the arbitrary vehicle in these two vehicles and the distance between these two vehicles according to the first wireless signal received. Additionally, speed and distance are sent to server, server can in conjunction with multiple intelligent objects (include above-mentioned in other intelligent objects and intelligent object) speed that sends and distance relatively accurately determine the position of this intelligent object, owing to being arranged in vehicle by this intelligent object, then may determine that the position of vehicle.
In technique scheme, preferably, also include: transmitter unit, for launching the second wireless signal to other intelligent objects described, determine the mobile message of described intelligent object other intelligent objects relatively described according to described second wireless signal for other intelligent objects described. Wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
In this technical scheme, can launch the second wireless signal to other intelligent objects, then other intelligent objects can according to the speed of the second wireless signal computational intelligence module received relatively other intelligent objects and distance (i.e. the mobile message of relative other intelligent objects of intelligent object) between the two. It addition, the emissive porwer of the second wireless signal of intelligent object transmitting and tranmitting frequency are invariable, to facilitate the accuracy of the calculated result of calculation of other intelligent objects.
A third aspect of the present invention proposes a kind of intelligent object, including: the information processor according to any one of technique scheme, therefore, this intelligent object has the technique effect identical with the information processor according to any one of technique scheme, does not repeat them here.
A fourth aspect of the present invention proposes a kind of car-mounted terminal, including: the intelligent object according to any one of technique scheme, therefore, this car-mounted terminal has the technique effect identical with the intelligent object according to any one of technique scheme, does not repeat them here.
A fifth aspect of the present invention proposes a kind of information processing method, for server, including: receive the speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, described distance includes the distance between any two intelligent objects described, and the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3; The mobile message of other intelligent objects in the plurality of intelligent object is determined according to described speed and described distance.
In this technical scheme, server can receive from more than or equal to the speed of 3 intelligent objects and distance, such as, receive speed and the distance of 3 intelligent objects, owing to 3 intelligent objects there being the position of an intelligent object fix (as being arranged on road side), other two intelligent objects are arranged in vehicle, according to euclidean geometry principle and the distance that receives in 3 intelligent objects between each two intelligent object, may determine that the mobile messages such as the position of two intelligent objects being arranged in vehicle, avoid and detect, by GPS of the prior art, the error that the position of vehicle is brought, thus improve the accuracy of the position of detection vehicle. again such as, speed and the distance of 4 intelligent objects can be received, 4 intelligent objects there is the position of 3 intelligent objects to fix, namely the position of 3 intelligent objects that position is fixing is known, another intelligent object is arranged in the vehicle of movement, the then distance according to 3 intelligent objects Yu another intelligent object, it may be determined that the position of another intelligent object.
In technique scheme, it is preferable that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
In this technical scheme, mobile message includes but not limited to one below or its combination: the current location of described intelligent object, moving direction and translational speed, can the current location in each moment obtains the driving trace of vehicle according to calculating vehicle in multiple moment, and can the mobile context of relatively accurately simulating vehicle according to moving direction, translational speed and driving trace, particularly when vehicle generation vehicle accident, can effectively reduce vehicle generation vehicle accident time scene, thus contributing to the identification of traffic accident responsibility.
A sixth aspect of the present invention proposes a kind of information processor, for server, including: receive unit, for receiving speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, and described distance includes the distance between any two intelligent objects described, the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3; Determine unit, for determining the mobile message of other intelligent objects in the plurality of intelligent object according to described speed and described distance.
In this technical scheme, server can receive from more than or equal to the speed of 3 intelligent objects and distance, such as, receive speed and the distance of 3 intelligent objects, owing to 3 intelligent objects there being the position of an intelligent object fix (as being arranged on road side), other two intelligent objects are arranged in vehicle, according to euclidean geometry principle and the distance that receives in 3 intelligent objects between each two intelligent object, may determine that the mobile messages such as the position of two intelligent objects being arranged in vehicle, avoid and detect, by GPS of the prior art, the error that the position of vehicle is brought, thus improve the accuracy of the position of detection vehicle. again such as, speed and the distance of 4 intelligent objects can be received, 4 intelligent objects there is the position of 3 intelligent objects to fix, namely the position of 3 intelligent objects that position is fixing is known, another intelligent object is arranged in the vehicle of movement, the then distance according to 3 intelligent objects Yu another intelligent object, it may be determined that the position of another intelligent object.
In technique scheme, it is preferable that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
In this technical scheme, mobile message includes but not limited to one below or its combination: the current location of described intelligent object, moving direction and translational speed, can the current location in each moment obtains the driving trace of vehicle according to calculating vehicle in multiple moment, and can the mobile context of relatively accurately simulating vehicle according to moving direction, translational speed and driving trace, particularly when vehicle generation vehicle accident, can effectively reduce vehicle generation vehicle accident time scene, thus contributing to the identification of traffic accident responsibility.
Pass through technical scheme, it is possible to accurately determine vehicle position in the process of moving and speed.
Accompanying drawing explanation
Fig. 1 illustrates the schematic flow sheet of information processing method according to an embodiment of the invention;
Fig. 2 illustrates the structural representation of information processor according to an embodiment of the invention;
Fig. 3 illustrates the structural representation of intelligent object according to an embodiment of the invention;
Fig. 4 illustrates the structural representation of car-mounted terminal according to an embodiment of the invention;
Fig. 5 illustrates the schematic flow sheet of information processing method according to another embodiment of the invention;
Fig. 6 illustrates the structural representation of information processor according to another embodiment of the invention;
Fig. 7 illustrates the schematic diagram of vehicle according to an embodiment of the invention and intelligent object.
Detailed description of the invention
In order to the above-mentioned purpose of the present invention, feature and advantage can be more clearly understood that, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
Fig. 1 illustrates the schematic flow sheet of information processing method according to an embodiment of the invention.
As it is shown in figure 1, information processing method according to an embodiment of the invention, including:
Step 102, receives the first wireless signal from other intelligent objects;
Step 104, Doppler frequency shift according to described first wireless signal, calculate the speed of the described relatively described intelligent object of other intelligent objects, and the received signal strength index according to described first wireless signal, calculate described distance between other intelligent objects and described intelligent object;
Step 106, sends described speed and described distance to server, for described server, described speed and described distance is processed.
In this technical scheme, the first wireless signal of other intelligent objects is received by intelligent object, Doppler frequency shift and received signal strength index (RSSI further according to the first wireless signal, ReceivedSignalStrengthIndication), can relatively accurately calculate the speed of the relatively intelligent module of other intelligent objects, and the distance between intelligent object and other intelligent objects, avoid and detect, by GPS of the prior art, the error that speed is brought, thus improve the accuracy of the speed of detection vehicle. Such as, intelligent object is arranged on road side, and other intelligent objects are arranged in vehicle, and when vehicle travels in the road, the intelligent object of road side can calculate the travel speed of this vehicle and the distance of this vehicle distances intelligent object. Or intelligent object and other intelligent objects are separately positioned in two vehicles, it is also possible to calculate the speed of another vehicle relatively of the arbitrary vehicle in these two vehicles and the distance between these two vehicles according to the first wireless signal received. Additionally, speed and distance are sent to server, server can in conjunction with multiple intelligent objects (include above-mentioned in other intelligent objects and intelligent object) speed that sends and distance relatively accurately determine the position of this intelligent object, owing to being arranged in vehicle by this intelligent object, then may determine that the position of vehicle.
In technique scheme, preferably, also include: launch the second wireless signal to other intelligent objects described, determine the mobile message of described intelligent object other intelligent objects relatively described according to described second wireless signal for other intelligent objects described, wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
In this technical scheme, can launch the second wireless signal to other intelligent objects, then other intelligent objects can according to the speed of the second wireless signal computational intelligence module received relatively other intelligent objects and distance (i.e. the mobile message of relative other intelligent objects of intelligent object) between the two. It addition, the emissive porwer of the second wireless signal of intelligent object transmitting and tranmitting frequency are invariable, to facilitate the accuracy of the calculated result of calculation of other intelligent objects.
Fig. 2 illustrates the structural representation of information processor according to an embodiment of the invention.
As in figure 2 it is shown, information processor 200 according to an embodiment of the invention, including: receiving unit 202, computing unit 204 and transmitting element 206, wherein, described reception unit 202, for receiving the wireless signal from vehicle; Described computing unit 204, for the Doppler frequency shift according to described wireless signal, calculate the speed of the relatively described intelligent object of described vehicle and the received signal strength index according to described wireless signal, calculate the distance between described vehicle and described intelligent object; Described transmitting element 206, for sending described speed and described distance to server, processes described speed and described distance for described server.
In this technical scheme, in this technical scheme, the first wireless signal of other intelligent objects is received by intelligent object, Doppler frequency shift and received signal strength index (RSSI further according to the first wireless signal, ReceivedSignalStrengthIndication), can relatively accurately calculate the speed of the relatively intelligent module of other intelligent objects, and the distance between intelligent object and other intelligent objects, avoid and detect, by GPS of the prior art, the error that speed is brought, thus improve the accuracy of the speed of detection vehicle. Such as, intelligent object is arranged on road side, and other intelligent objects are arranged in vehicle, and when vehicle travels in the road, the intelligent object of road side can calculate the travel speed of this vehicle and the distance of this vehicle distances intelligent object. Or intelligent object and other intelligent objects are separately positioned in two vehicles, it is also possible to calculate the speed of another vehicle relatively of the arbitrary vehicle in these two vehicles and the distance between these two vehicles according to the first wireless signal received. Additionally, speed and distance are sent to server, server can in conjunction with multiple intelligent objects (include above-mentioned in other intelligent objects and intelligent object) speed that sends and distance relatively accurately determine the position of this intelligent object, owing to being arranged in vehicle by this intelligent object, then may determine that the position of vehicle.
In technique scheme, preferably, also include: transmitter unit 208, for launching the second wireless signal to other intelligent objects described, determine the mobile message of described intelligent object other intelligent objects relatively described according to described second wireless signal for other intelligent objects described. Wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
In this technical scheme, can launch the second wireless signal to other intelligent objects, then other intelligent objects can according to the speed of the second wireless signal computational intelligence module received relatively other intelligent objects and distance (i.e. the mobile message of relative other intelligent objects of intelligent object) between the two. It addition, the emissive porwer of the second wireless signal of intelligent object transmitting and tranmitting frequency are invariable, to facilitate the accuracy of the calculated result of calculation of other intelligent objects.
Fig. 3 illustrates the structural representation of intelligent object according to an embodiment of the invention.
As shown in Figure 3, intelligent object 300 according to an embodiment of the invention, including: the information processor 200 according to any one of technique scheme, therefore, this intelligent object 300 has the technique effect identical with the information processor 200 according to any one of technique scheme, does not repeat them here.
Fig. 4 illustrates the structural representation of car-mounted terminal according to an embodiment of the invention.
As shown in Figure 4, car-mounted terminal 400 according to an embodiment of the invention, including: the intelligent object 300 according to any one of technique scheme, therefore, this car-mounted terminal 400 has the technique effect identical with the intelligent object 300 according to any one of technique scheme, does not repeat them here.
Fig. 5 illustrates the schematic flow sheet of information processing method according to another embodiment of the invention.
As it is shown in figure 5, information processing method according to another embodiment of the invention, including:
Step 502, receive the speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, described distance includes the distance between any two intelligent objects described, the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3;
Step 504, determines the mobile message of other intelligent objects in the plurality of intelligent object according to described speed and described distance.
In this technical scheme, server can receive from more than or equal to the speed of 3 intelligent objects and distance, such as, receive speed and the distance of 3 intelligent objects, owing to 3 intelligent objects there being the position of an intelligent object fix (as being arranged on road side), other two intelligent objects are arranged in vehicle, according to euclidean geometry principle and the distance that receives in 3 intelligent objects between each two intelligent object, may determine that the mobile messages such as the position of two intelligent objects being arranged in vehicle, avoid and detect, by GPS of the prior art, the error that the position of vehicle is brought, thus improve the accuracy of the position of detection vehicle. again such as, speed and the distance of 4 intelligent objects can be received, 4 intelligent objects there is the position of 3 intelligent objects to fix, namely the position of 3 intelligent objects that position is fixing is known, another intelligent object is arranged in the vehicle of movement, the then distance according to 3 intelligent objects Yu another intelligent object, it may be determined that the position of another intelligent object.
In technique scheme, it is preferable that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
In this technical scheme, mobile message includes but not limited to one below or its combination: the current location of described intelligent object, moving direction and translational speed, can the current location in each moment obtains the driving trace of vehicle according to calculating vehicle in multiple moment, and can the mobile context of relatively accurately simulating vehicle according to moving direction, translational speed and driving trace, particularly when vehicle generation vehicle accident, can effectively reduce vehicle generation vehicle accident time scene, thus contributing to the identification of traffic accident responsibility.
Fig. 6 illustrates the structural representation of information processor according to another embodiment of the invention.
As shown in Figure 6, information processor 600 according to another embodiment of the invention, including: receive unit 602 and determine unit 604, wherein, described reception unit 602, for receiving speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, described distance includes the distance between any two intelligent objects described, the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3; Described determine unit 604, for determining the mobile message of other intelligent objects in the plurality of intelligent object according to described speed and described distance.
In this technical scheme, server can receive from more than or equal to the speed of 3 intelligent objects and distance, such as, receive speed and the distance of 3 intelligent objects, owing to 3 intelligent objects there being the position of an intelligent object fix (as being arranged on road side), other two intelligent objects are arranged in vehicle, according to euclidean geometry principle and the distance that receives in 3 intelligent objects between each two intelligent object, may determine that the mobile messages such as the position of two intelligent objects being arranged in vehicle, avoid and detect, by GPS of the prior art, the error that the position of vehicle is brought, thus improve the accuracy of the position of detection vehicle. again such as, speed and the distance of 4 intelligent objects can be received, 4 intelligent objects there is the position of 3 intelligent objects to fix, namely the position of 3 intelligent objects that position is fixing is known, another intelligent object is arranged in the vehicle of movement, the then distance according to 3 intelligent objects Yu another intelligent object, it may be determined that the position of another intelligent object.
In technique scheme, it is preferable that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
In this technical scheme, mobile message includes but not limited to one below or its combination: the current location of described intelligent object, moving direction and translational speed, can the current location in each moment obtains the driving trace of vehicle according to calculating vehicle in multiple moment, and can the mobile context of relatively accurately simulating vehicle according to moving direction, translational speed and driving trace, particularly when vehicle generation vehicle accident, can effectively reduce vehicle generation vehicle accident time scene, thus contributing to the identification of traffic accident responsibility.
Fig. 7 illustrates the schematic diagram of vehicle according to an embodiment of the invention and intelligent object.
As shown in Figure 7, vehicle 1 and vehicle 2 travel in the road, first intelligent object is arranged on road side, second intelligent object is arranged in vehicle 1, 3rd intelligent object is arranged in vehicle 2, first intelligent object receives the wireless signal (i.e. the first wireless signal) of the second intelligent object transmitting and the wireless signal (i.e. the first wireless signal) of the 3rd intelligent object transmitting, the Doppler frequency shift of the wireless signal that the first intelligent object is launched according to the second intelligent object received and received signal strength index, determine speed and the distance between the two of relative first intelligent object of the second intelligent object respectively, namely the speed of relative first intelligent object of vehicle 1 and the distance of vehicle 1 and the first intelligent object are determined, the speed of relative first intelligent object of vehicle 2 and the distance of vehicle 2 and the first intelligent object can also be determined according to such scheme. owing to the first intelligent object is fixed, then can determine vehicle 1 and vehicle 2 position (in calculating process, the width of road is negligible) in the road according to euclidean geometry principle. additionally, owing to the first intelligent object is fixed, can calculate and obtain vehicle 1, relative velocity between vehicle 2 and the first intelligent object, such that it is able to obtain travel direction and the speed (i.e. the mobile message of the second intelligent object and the 3rd intelligent object) of vehicle 1 and vehicle 2. then can send to server with the very high frequency (the such as 10 times per second) travel direction by calculated vehicle 1 and vehicle 2 and speed, once there is vehicle accident in vehicle 1 and vehicle 2, from server, directly transfer vehicle 1 and vehicle 2 in the position in multiple moment and speed, such that it is able to the scene of a traffic accident of reduction vehicle 1 and vehicle 2 effectively.
Doppler frequency shift is described in detail below by an embodiment:
First intelligent object is arranged on road side, second intelligent object is arranged in vehicle, when vehicle travels in the road, first intelligent object receives the wireless signal that the second intelligent object is launched, the frequency of the first wireless signal that the frequency of the wireless signal that the second intelligent object is launched and the first intelligent object receive has difference, this difference is Doppler frequency shift �� f (dopplershift), �� f=f '-f, wherein, f ' represents the frequency of the wireless signal that the first intelligent object receives, f represents the frequency of the wireless signal of the second intelligent object transmitting, when the first intelligent object and the second intelligent object near time (vehicle is when the second intelligent object of road side is close), the frequency f ' of the wireless signal received is more than the frequency f of the wireless signal launched, i.e. �� f > 0, when the first intelligent object and the second intelligent object away from time (when vehicle is away from the second intelligent object of road side), the frequency f ' of the wireless signal received is less than the frequency f, i.e. �� f < 0 of the wireless signal launched.
When vehicle travels in the road, there is below equation:
Wherein, V represents the speed of relative first intelligent object of the second intelligent object, and f represents the frequency of wireless signal that the second intelligent object is launched, and C represents the angle of the wireless signal that the light velocity, �� represent that the moving direction of the second intelligent object and the second intelligent object launch.
Therefore, the speed obtaining relative first intelligent object of the second intelligent object can be calculated by above-mentioned formula.
Technical scheme is described in detail, it is possible to accurately determine vehicle position in the process of moving and speed above in association with accompanying drawing.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. an information processing method, for intelligent object, it is characterised in that including:
Receive the first wireless signal from other intelligent objects;
Doppler frequency shift according to described first wireless signal, calculate the speed of the described relatively described intelligent object of other intelligent objects, and the received signal strength index according to described first wireless signal, calculate described distance between other intelligent objects and described intelligent object;
Described speed and described distance are sent to server, for described server, described speed and described distance is processed.
2. information processing method according to claim 1, it is characterised in that also include:
Launch the second wireless signal to other intelligent objects described, determine the mobile message of described intelligent object other intelligent objects relatively described for other intelligent objects described according to described second wireless signal,
Wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
3. an information processor, for intelligent object, it is characterised in that including:
Receive unit, for receiving the wireless signal from vehicle;
Computing unit, for the Doppler frequency shift according to described wireless signal, calculate the speed of the relatively described intelligent object of described vehicle and the received signal strength index according to described wireless signal, calculate the distance between described vehicle and described intelligent object;
Transmitting element, for sending described speed and described distance to server, processes described speed and described distance for described server.
4. information processor according to claim 3, it is characterised in that also include:
Transmitter unit, for launching the second wireless signal to other intelligent objects described, determines the mobile message of described intelligent object other intelligent objects relatively described for other intelligent objects described according to described second wireless signal,
Wherein, the emissive porwer of described second wireless signal and tranmitting frequency are invariable.
5. an intelligent object, it is characterised in that including: the information processor as described in claim 3 or 4.
6. a car-mounted terminal, it is characterised in that including: intelligent object as claimed in claim 5.
7. an information processing method, for server, it is characterised in that including:
Receive the speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, described distance includes the distance between any two intelligent objects described, the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3;
The mobile message of other intelligent objects in the plurality of intelligent object is determined according to described speed and described distance.
8. information processing method according to claim 7, it is characterised in that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
9. an information processor, for server, it is characterised in that including:
Receive unit, for receiving speed from n intelligent object and distance, wherein, described speed includes the relative velocity in described n intelligent object between any two intelligent objects, described distance includes the distance between any two intelligent objects described, the position of at least one intelligent object in described n intelligent object is fixed, and n is the positive integer more than or equal to 3;
Determine unit, for determining the mobile message of other intelligent objects in the plurality of intelligent object according to described speed and described distance.
10. information processor according to claim 9, it is characterised in that described mobile message includes one below or its combination: the current location of other intelligent objects described, moving direction and translational speed.
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| CN101398978A (en) * | 2008-10-13 | 2009-04-01 | 徐菲 | Dynamic distance detection and information transfer method in running vehicle |
| CN103477376A (en) * | 2011-04-20 | 2013-12-25 | 日本电气株式会社 | Traffic situation monitoring system, method, and storage medium |
| US20130099943A1 (en) * | 2011-10-19 | 2013-04-25 | Balu Subramanya | Directional speed and distance sensor |
| CN104064031A (en) * | 2014-07-02 | 2014-09-24 | 丁宏飞 | Vehicle peccancy monitoring and tracking positioning system of applying electronic license plate |
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