CN110784826B - System and method for tracking vehicle running track and mobile terminal - Google Patents
System and method for tracking vehicle running track and mobile terminal Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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Abstract
The invention provides a system and a method for tracking a vehicle running track and a mobile terminal for realizing the method. In the technical scheme of the invention, the vehicle tracking management system does not need to frequently send position inquiry and acquisition instructions to each vehicle, but only needs to passively receive the positions of the group vehicles uploaded by the reporting vehicles from the group, thereby greatly saving the data communication cost; the vehicles in the group share the position information of the vehicles to the surrounding vehicles when detecting that the surrounding vehicles in a non-isolated state exist by detecting the state of the surrounding vehicles in a preset range, and the corresponding surrounding vehicle completes position reporting; if no surrounding vehicle exists or the surrounding vehicles are in an isolated state, the current vehicle is used as a position reporting vehicle, and the acquired position information of other surrounding vehicles and the position information of the current vehicle are sent to the management terminal.
Description
Technical Field
The invention relates to the technical field of vehicle tracking, in particular to a system and a method for tracking a vehicle running track and a mobile terminal for realizing the method.
Background
The vehicle tracking system known in the prior art is a system for receiving satellite signals and determining the position of a tracked vehicle through a GPS chip or a Beidou chip, then transmitting vehicle position information back to a control center, and displaying the vehicle position information on an electronic map mapped by a navigation electronic map manufacturing qualification enterprise by the control center, so that the vehicle position is known in real time.
Vehicle tracking for a particular vehicle can be readily accomplished by the above-described method. For example, a vehicle tracking system widely used in the prior art is improved on the basis of utilizing a Global Positioning System (GPS) to cooperate with a global system for mobile communications (GSM); in addition, various third-party service systems capable of realizing vehicle tracking without equipment such as a GPS (global positioning system) are provided, a mobile phone LBS (location based service) base station positioning technology is adopted, the mobile phone can be positioned by registering a mobile phone number into the system based on an SAAS (software as a service) mode without installing equipment such as a GPS. The tracking locator is widely applied to the logistics industry, the logistics scheduling registers the mobile phone number of a carrier owner into a vehicle management system, the vehicle can be positioned in real time, the positioning precision of the tracking locator completely meets the requirements of logistics workers on positioning and tracking, and the tracking locator is popular with logistics scheduling management personnel; for example, the Chinese patent application with the application number of CN201811168953.3 discloses an electric vehicle tracker based on NB-IOT technology and a tracking and positioning method, for a common user, the NB-IOT intelligent tracker of the vehicle can be bound through a mobile phone APP, and the state information of the vehicle can be checked anytime and anywhere; the management (network layer) and the cloud (platform layer) of the electric vehicle tracking and positioning method are mature and complete electric vehicle tracking and positioning methods of multiple operators for selection, the complete electric vehicle tracking and positioning method of the tracking and positioning system can be formed only by developing software of the intelligent manager and the application server, the cost is extremely low, seamless monitoring can be realized only by installing a positioner on a vehicle, and the method is not as troublesome as the traditional electric vehicle tracking and positioning method which needs monitoring points according to specific layout at a road junction.
However, the problem becomes very complex for a large number of group vehicle tracking management. If a tracker is installed on each vehicle according to the prior art, and then each vehicle reports its own position to the management terminal, the management terminal needs to bear huge data receiving pressure and needs to be configured with a high-cost memory and data transmission equipment; due to instability of data transmission, the management terminal also needs to frequently send position inquiry and obtain instructions, and great pressure is also brought to the network, so that network blockage is easily caused; in addition, whether a GPS device or a mobile network device is used, the size of data traffic caused by such large-scale data communication is also very considerable, which brings a great negative impact on vehicle management cost control.
In particular, it is pointed out that the above problems are increasingly serious as the size of the group of vehicles is increased, and the prior art does not provide an effective solution.
Disclosure of Invention
The present invention is directed to a corresponding and effective solution for solving the above technical problems.
In order to solve the technical problem, the invention provides a system and a method for tracking a vehicle driving track and a mobile terminal for implementing the method.
In the technical scheme of the invention, the vehicle tracking management system does not need to frequently send position inquiry and acquisition instructions to each vehicle, but only needs to passively receive the positions of the group vehicles uploaded by the reporting vehicles from the group, thereby greatly saving the data communication cost; the vehicles in the group share the position information of the vehicles to the surrounding vehicles when detecting that the surrounding vehicles in a non-isolated state exist by detecting the state of the surrounding vehicles in a preset range, and the corresponding surrounding vehicle completes position reporting; if no surrounding vehicle exists or the surrounding vehicles are in an isolated state, the current vehicle is used as a position reporting vehicle, and the acquired position information of other surrounding vehicles and the position information of the current vehicle are sent to the management terminal; in the above transmission process, radio waves of different frequencies are respectively adopted, the group vehicles are each provided with a radio wave transceiver configured to: if the radio wave signals of other group vehicles are received, the isolated state value and the position information of the vehicle are shared.
According to the technical scheme, a GPS tracker does not need to be installed on each tracked vehicle, and each tracked vehicle does not need to report the state information of the tracked vehicle to the control terminal through the network, so that the cost is effectively reduced, and overlarge data transmission pressure and network blockage are avoided; in addition, the scheme can also ensure that the position information of each vehicle can be received by the management terminal within a preset time period at any time, and the problem of disconnection is avoided.
Specifically, the technical scheme provided by the invention comprises the following steps:
in a first aspect, a method for tracking a vehicle travel track is provided, the method being applied to a plurality of traveling vehicles belonging to the same group, each of the plurality of traveling vehicles being configured with a radio wave transceiver;
the method comprises the following steps:
a peripheral vehicle detection step: the method comprises the steps that a current vehicle transmits radio waves of a first preset frequency through a radio wave transceiver of the current vehicle, and whether at least one peripheral vehicle belonging to the same group exists in a first preset range or not is detected;
a surrounding vehicle state inquiry step: if it is detected that at least one nearby vehicle belonging to the same group exists within the first predetermined range, it is queried whether the nearby vehicle is in an isolated state,
the isolated state is: the surrounding vehicle does not communicate with the master control terminal or other vehicles except the current vehicle beyond the second preset time;
if the peripheral vehicles are in an isolated state, the current vehicle sends the position information to a master control end through radio waves with second preset frequency;
if at least one peripheral vehicle is not in an isolated state, the current vehicle transmits the position information of the current vehicle to the peripheral vehicle through radio waves of a first preset frequency;
and further comprising:
if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
Wherein the first predetermined frequency, the second predetermined frequency and the third predetermined frequency are set as frequencies at which the vehicles in the same group communicate with each other.
If the peripheral vehicle detection step fails to detect at least one peripheral vehicle belonging to the same group within a first predetermined range, the current vehicle sends the position information of the current vehicle to a master control end through radio waves of the second predetermined frequency.
In a second aspect of the invention, the method may be implemented on a group vehicle in the form of computer program instruction code to track a trajectory of the group vehicle based on a state of the nearby vehicle, the computer program instruction code being implemented in pseudo code in the form of:
q101: the method comprises the steps that a current vehicle detects whether at least one peripheral vehicle belonging to the same group exists in a first preset range; if yes, entering the next step; otherwise, go to step Q105;
q103: inquiring whether the surrounding vehicle is in an isolated state;
if yes, go to step Q105; otherwise, go to step Q107;
q105: the current vehicle sends the position information of the current vehicle to a master control end;
q107: the current vehicle sends the position information of the current vehicle to the surrounding vehicle;
in the concrete implementation aspect, the method comprises the following steps of,
in steps Q105 and Q107, the current vehicle transmits its own position information using radio waves of different frequencies;
in the step Q101, the present vehicle detects a nearby vehicle using a radio wave different from those of the steps Q105 and Q107;
preferably, the step Q101 further includes:
if the detection result is negative, after the fourth preset time, repeatedly executing the step Q101;
if the number of times of no detection exceeds the predetermined value, the flow proceeds to step Q105.
Wherein the isolated state of step Q103 is: the nearby vehicle does not communicate with the total control terminal or with other vehicles than the current vehicle beyond the second predetermined time.
Wherein step Q107 comprises: the present vehicle transmits its own position information to the nearby vehicle by radio waves of a first predetermined frequency.
In a specific implementation, the instructions further include: if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
The implementation of the further instructions described above represents another innovative aspect of the present invention. Because the positions of all vehicles are changed continuously, if a plurality of vehicles which are not isolated exist, vehicles approaching to the vehicles are selected instead of the vehicles which are in the same group but are far away, and the continuity of information transmission can be ensured;
as a further preference, if there are a plurality of non-isolated vehicles approaching themselves, a non-isolated vehicle whose approaching speed is slow is selected.
In a second aspect of the present invention, a management system for tracking a vehicle driving track is provided, for implementing the aforementioned method for tracking a vehicle driving track;
in terms of hardware configuration, the management system comprises a master control end which is configured to receive only wireless signals, and the master control end is used for receiving group vehicle position information sent by one of the group vehicles and dynamically displaying the position information on a display screen of the system in a visualized mode.
In a third aspect of the present invention, there is also provided a mobile terminal comprising a display, a memory and a processor; the mobile terminal is used for the group vehicle position information sent by one of the group vehicles, and the memory stores a computer program; and executing the computer program through the processor to display the position information on a display screen of a management system for tracking the vehicle running track in a visualized dynamic mode.
Further advantages of the present invention will be further apparent from the detailed description of the preferred embodiments in conjunction with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a plurality of vehicles in motion in the same group of the subject application;
FIG. 2 is a schematic diagram of a method for tracking a vehicle travel track according to the present application;
FIG. 3 is a flowchart illustrating a method for tracking a driving trajectory of a vehicle according to the present application;
FIG. 4 is a schematic flow chart of a preferred method for tracking a vehicle trajectory according to the present application;
FIG. 5 is a schematic diagram of a management system for tracking a driving track of a vehicle according to the present application.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
It is first noted that the illustrations depicted in fig. 1-5 are schematic representations only, and that some of the dimensions are not necessarily drawn to scale relative to actual dimensions. Some of the dimensional details (vehicle size) have been enlarged, reduced or skewed as necessary for illustration, but will be understood by those skilled in the art in conjunction with the written description of this application in its entirety.
Referring to fig. 1, a schematic diagram of a plurality of traveling vehicles in the same group is shown.
In fig. 1, as highlighted by the diagram circles, more than 10 (only 10 shown in the figure) vehicles are collectively distributed in a block city chain in a certain same direction, and the vehicles of the block city chain in the same direction form a same group based on the current geographic location;
it is to be noted that vehicles of the same group are changed with time and vehicle states, and whether these vehicles constitute the same group depends on whether data communication can be generated by radio waves respectively.
In the present embodiment, radio waves are divided into various different bands (or frequency bands) according to the wavelengths (or frequencies) of the radio waves. Radio waves of different wavelengths (or frequencies) often have different propagation characteristics and different ranges of communication applications.
Long wave propagation distances of 300km or less are mainly due to earth waves, and long-distance (2000km) propagation is mainly due to sky waves. When long wave communication is used, the field intensity at the receiving point is stable, but the surface wave attenuation is slow, so that the interference to other receiving stations is large. Long waves are also severely affected by natural electrical interference. In addition, since the transmitting antenna is very bulky, it uses long waves as a small amount of communication and broadcasting, and is used only in transoceanic communication, navigation, weather forecasting, and the like.
The sky wave in the daytime is greatly attenuated and absorbed by an ionosphere, and is mainly transmitted by the ground wave, the sky wave at night is transmitted, the transmission distance is far away from the ground wave, the sky wave is mainly used for communication between a ship and navigation, and the middle wave with the wavelength of 2000-200m is mainly used for broadcasting.
Short wave propagation has both earth and sky waves. However, the short wave has high frequency, the ground surface absorbs strongly, the ground surface wave attenuates quickly, and the short wave has only dozens of kilometers of ground wave propagation. The loss of sky waves in the ionosphere is reduced, and the sky waves are often used for long-distance communication and broadcasting. However, the ionosphere is unstable, the communication quality is poor, and the short wave is mainly used for telephone telegraph communication, broadcasting and amateur radio stations.
Because the frequency of the ultrashort wave is very high and the attenuation of the ground wave is very high, the electric wave penetrates into the ionized layer deeply and even penetrates out of the ionized layer, so that the electric wave cannot be reflected back, the ground wave and the antenna wave can not be utilized, and the space wave is mainly used for propagation. The ultrashort wave is mainly used for frequency modulation broadcasting, television, radar, navigation fax, relay, mobile communication and the like.
In the embodiment of the invention, the radio waves with different frequencies are adopted according to different situations.
Referring to fig. 2, a schematic diagram of a method for tracking a driving track of a vehicle according to the present application is shown.
In general, the method includes a nearby vehicle detecting step, and a nearby vehicle state querying step.
In particular, the method of manufacturing a semiconductor device,
the nearby vehicle detecting step performs the operations of: the method comprises the steps that a current vehicle transmits radio waves of a first preset frequency through a radio wave transceiver of the current vehicle, and whether at least one peripheral vehicle belonging to the same group exists in a first preset range or not is detected;
here, the radio wave of the first predetermined frequency may be a short wave;
the nearby vehicle state inquiring step performs the operations of: if it is detected that at least one nearby vehicle belonging to the same group exists within the first predetermined range, it is queried whether the nearby vehicle is in an isolated state,
in this embodiment, the isolated state is defined as: the nearby vehicle does not communicate with the total control terminal or with other vehicles than the current vehicle beyond the second predetermined time.
If the peripheral vehicles are in an isolated state, the current vehicle sends the position information to a master control end through radio waves with second preset frequency;
in this example, the radio wave of the second predetermined frequency may be a long wave or a short or medium wave.
If at least one peripheral vehicle is not in an isolated state, the current vehicle transmits the position information of the current vehicle to the peripheral vehicle through radio waves of a first preset frequency;
and further comprising:
if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
It is worth pointing out that in the solution of the present invention, it is impossible for all group vehicles to communicate with the central control end or with other surrounding vehicles for a long time. Therefore, within a preset time period, one vehicle can be always found to serve as a position reporting vehicle, and the state of the vehicle and the state of the surrounding vehicles are reported to the master control end.
Even in extreme cases, a certain vehicle in an isolated state constitutes a group; but will eventually join the group containing other nearby vehicles as their travel state changes.
Thus, further in connection with fig. 3-4, a flow implementation of the above method in the form of computer code can be seen.
Referring to fig. 3, the computer program instruction code implements pseudo code in the form of:
q101: the method comprises the steps that a current vehicle detects whether at least one peripheral vehicle belonging to the same group exists in a first preset range; if yes, entering the next step; otherwise, go to step Q105;
q103: inquiring whether the surrounding vehicle is in an isolated state;
if yes, go to step Q105; otherwise, go to step Q107;
q105: the current vehicle sends the position information of the current vehicle to a master control end;
q107: the current vehicle sends the position information of the current vehicle to the surrounding vehicle;
fig. 4 is just another implementation corresponding to the aforementioned extreme case, and on the basis of fig. 3, the step Q101 further includes:
if the detection result is negative, after the fourth preset time, repeatedly executing the step Q101;
if the number of times of no detection exceeds the predetermined value, the flow proceeds to step Q105.
In fig. 3-4, in steps Q105 and Q107, the current vehicle transmits its own position information using radio waves of different frequencies;
in the step Q101, the present vehicle detects the nearby vehicle using a radio wave different from those of the steps Q105 and Q107.
Specifically, step Q107 includes: the present vehicle transmits its own position information to the nearby vehicle by radio waves of a first predetermined frequency.
In a specific implementation, the instructions further include: if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
The radio wave of the third predetermined frequency may be a spatial line wave or a ground wave; can be realized by an interphone and a radar.
This is a radio wave determined by the propagation mode of the radio antenna.
The radio wave mainly has 3 propagation modes from a transmitting place to a receiving place, including sky wave, ground wave and space linear wave, and the wave characteristics are as follows:
ground wave: the electric wave propagating along the earth's surface is called a ground wave. During the propagation process, the radio waves are absorbed by the ground, so that the propagation distance is short. The higher the frequency, the greater the ground absorption, so that short and ultra-short waves travel along the ground at a short distance, generally not more than 100 km, while medium waves travel at a relatively long distance. The method has the advantages of less influence of weather, stable signal and high communication reliability.
Sky wave: the radio waves propagated by the ionosphere reflection in the atmosphere are called sky waves, which are also called ionosphere reflection waves. The transmitted electric wave is reflected by the ionized layer over 70-80 km from the ground and reaches the receiving place, and the propagation distance is far, generally over 1000 km. The defects are that the influence of the weather of the ionized layer is large, and the transmitted signal is unstable. The short wave frequency band is the best frequency band for sky wave propagation, and the short wave single side band radio station equipped for the fishery ship is the equipment for performing remote communication by using the sky wave propagation mode.
Spatial line waves: the radio waves that travel straight from the transmitting location to the receiving location in the space are called space straight radio waves, also called straight waves or line-of-sight waves. The propagation distance is the range of line of sight, only tens of kilometers. The interphone and the radar which are equipped in the fishery ship are both devices which communicate by utilizing a space wave propagation mode.
The methods described in fig. 1-4 may be implemented by structures, devices, and systems in the form of computer software and hardware, including a processor, memory, and computer-readable instructions, computer media, respectively.
With particular reference to fig. 5, a management system for tracking a vehicle driving track is provided, for implementing the aforementioned method for tracking a vehicle driving track;
in terms of hardware configuration, the management system comprises a master control end which is configured to receive only wireless signals, and the master control end is used for receiving group vehicle position information sent by one of the group vehicles and dynamically displaying the position information on a display screen of the system in a visualized mode.
Different from a data processing mode in the prior art in which a management terminal needs to continuously train to acquire the positions of each vehicle, in this embodiment, a master control terminal is configured to receive only wireless signals without sending signals; and only the uploaded data of a limited number of position reporting vehicles are received, and after verification, the number of the position reporting vehicles is generally not more than 15% of the total number of the vehicles, so that the data transmission pressure is greatly reduced.
Although not shown, the system may be embodied as a mobile terminal including a display, a memory, and a processor; the mobile terminal is used for the group vehicle position information sent by one of the group vehicles, and the memory stores a computer program; executing the computer program by the processor to visually display the location information on a display screen of the system.
According to the technical scheme, a GPS tracker does not need to be installed on each tracked vehicle, and each tracked vehicle does not need to report the state information of the tracked vehicle to the control terminal through the network, so that the cost is effectively reduced, and overlarge data transmission pressure and network blockage are avoided; in addition, the scheme can also ensure that the position information of each vehicle can be received by the management terminal within a preset time period at any time, and the problem of disconnection is avoided.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (8)
1. A method for tracking a vehicle travel track, the method being applied to a plurality of traveling vehicles belonging to the same group, each of the plurality of traveling vehicles being configured with a radio wave transceiver;
characterized in that the method comprises:
a peripheral vehicle detection step: the method comprises the steps that a current vehicle transmits radio waves of a first preset frequency through a radio wave transceiver of the current vehicle, and whether at least one peripheral vehicle belonging to the same group exists in a first preset range or not is detected;
a surrounding vehicle state inquiry step: if it is detected that at least one nearby vehicle belonging to the same group exists within the first predetermined range, it is queried whether the nearby vehicle is in an isolated state,
the isolated state is: the surrounding vehicle does not communicate with the master control terminal or other vehicles except the current vehicle beyond the second preset time;
if the peripheral vehicles are in an isolated state, the current vehicle sends the position information of the current vehicle to a master control end through radio waves with second preset frequency;
if at least one peripheral vehicle is not in an isolated state, the current vehicle transmits the position information of the current vehicle to the peripheral vehicle through radio waves of a first preset frequency;
and further comprising:
if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
2. The method of claim 1, wherein the first, second and third predetermined frequencies are set to frequencies at which vehicles in the same group communicate with each other.
3. The method according to claim 1, wherein if the nearby vehicle detecting step fails to detect at least one nearby vehicle belonging to the same group within a first predetermined range, the current vehicle transmits its own position information to a general control terminal by radio waves of the second predetermined frequency.
4. A method of tracking a group vehicle travel trajectory based on a surrounding vehicle state, the method comprising the steps of:
q101: the method comprises the steps that a current vehicle detects whether at least one peripheral vehicle belonging to the same group exists in a first preset range; if yes, entering the next step; otherwise, go to step Q105;
q103: inquiring whether the surrounding vehicle is in an isolated state;
the isolated state is: the surrounding vehicle does not communicate with the master control terminal or other vehicles except the current vehicle beyond the second preset time;
if yes, go to step Q105; otherwise, go to step Q107;
q105: the current vehicle sends the position information of the current vehicle to a master control end;
q107: the current vehicle sends the position information of the current vehicle to the surrounding vehicle;
the method is characterized in that:
in steps Q105 and Q107, the current vehicle transmits its own position information using radio waves of different frequencies;
in the step Q101, the current vehicle detects a nearby vehicle using a short wave;
the step Q101 further includes:
if the detection result is negative, after the fourth preset time, repeatedly executing the step Q101;
if the number of times of no detection exceeds the predetermined value, the flow proceeds to step Q105.
5. The method of claim 4, wherein step Q107 comprises: the present vehicle transmits its own position information to the nearby vehicle by radio waves of a first predetermined frequency.
6. The method of claim 5, further comprising: if more than one peripheral vehicle which is not in an isolated state exists in the first predetermined range, the current vehicle transmits radio waves of a third predetermined frequency through the own radio wave transceiver, detects the peripheral vehicle which is not in the isolated state and has a reduced spatial distance with the current vehicle in a third predetermined time period, and transmits own position information to the peripheral vehicle through the radio waves of the first predetermined frequency.
7. A system for tracking a vehicle's travel track for implementing the method of any one of claims 1-6;
the method is characterized in that:
the system comprises a master control end which is configured to only receive wireless signals, and the master control end is used for receiving the position information of the group vehicles sent by one of the group vehicles and displaying the position information on a display screen of the system in a visual dynamic mode.
8. A mobile terminal comprising a display, a memory and a processor; the mobile terminal is configured to receive the group vehicle location information transmitted by one of the group vehicles as claimed in claim 7, and the memory stores a computer program; dynamic display of said location information visualized on a display screen of the system of claim 7 by said processor executing said computer program.
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