CN112078572A - Vehicle distance alarm method and system and computer readable storage medium - Google Patents
Vehicle distance alarm method and system and computer readable storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
Abstract
The application discloses a vehicle distance alarm method and system and a computer readable storage medium, wherein the vehicle distance alarm system comprises a vehicle-mounted probe module, a data processing module and an alarm module, wherein the vehicle-mounted probe module is used for receiving and analyzing wireless signals of nearby vehicles and sending the information of the analyzed wireless signals to the data processing module; the data processing module is used for calculating the distance of nearby vehicles according to the information of the wireless signals, comparing the calculated distance with a preset safe distance, and informing the alarm module when the distance is smaller than or equal to the safe distance; the alarm module is used for receiving the notice of the data processing module and sending out an alarm signal. The method and the device have the advantages that the distance of nearby vehicles is monitored in real time, the drivers of the vehicles are reminded to take measures in time, and major traffic accidents are effectively avoided.
Description
Technical Field
The present application relates to, but not limited to, the field of wireless communication technologies, and in particular, to a vehicle distance warning method and system, and a computer-readable storage medium.
Background
With the rapid development of the economy and automobile industry in China, automobiles have gradually become a transportation tool to enter thousands of households. The existing vehicle navigation device has functions of basic Global Positioning System (GPS) Positioning, route planning, vehicle overspeed reminding and the like, but generally has no function of reminding the distance of a surrounding vehicle.
On an expressway, the running speeds (including the lowest speed and the highest speed) of vehicles are usually limited, and if the rear vehicle is not warned in time after an accident occurs in the front, accidents such as rear-end collision of the vehicles and the like are easily caused, and personnel and/or property damage is caused; or, the existing warning method is to place a warning sign behind the accident vehicle, when the place of the warning sign is close to the accident vehicle, the rear vehicle running at high speed is difficult to make an avoidance response in a short time, at this time, accidents such as vehicle rear-end collision and the like are easily caused, and tragedy is generated.
Disclosure of Invention
The application provides a vehicle distance alarm method and system and a computer readable storage medium, which can provide a function of reminding the distance of a surrounding vehicle.
The application provides a vehicle distance alarm system, including on-vehicle probe module, data processing module and alarm module, wherein:
the vehicle-mounted probe module is used for receiving and analyzing wireless signals of nearby vehicles and sending the information of the analyzed wireless signals to the data processing module, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity;
the data processing module is used for calculating the distance of nearby vehicles according to the information of the wireless signals, comparing the calculated distance with a preset safe distance, and informing the alarm module when the calculated distance is smaller than or equal to the preset safe distance;
and the alarm module is used for receiving the notification of the data processing module and sending an alarm signal.
In an exemplary embodiment, the on-board probe module includes a plurality of on-board probes disposed at different locations of the vehicle.
In an exemplary embodiment, the number of the vehicle-mounted probes is at least three, and the at least three vehicle-mounted probes are respectively arranged at the head, body and tail positions of the vehicle;
the method for calculating the distance of the nearby vehicle by the data processing module is a trilateration positioning algorithm.
In an exemplary embodiment, the wireless signal includes any one of the following wireless signals: bluetooth signal, radio frequency identification RFID radio signal, WiFi radio signal, industry wireless control signal, infrared signal, ultra wide band UWB radio signal, ZigBee radio signal, near field communication NFC radio signal.
In an exemplary embodiment, the vehicle distance warning system further comprises a status sensing module, wherein:
the information of the wireless signals analyzed by the vehicle-mounted probe module also comprises vehicle state information;
the state sensing module is used for acquiring the vehicle state information of the vehicle to which the state sensing module belongs and sending the acquired vehicle state information to the data processing module;
the data processing module is also used for receiving the vehicle state information of the state sensing module and sending an alarm signal when the received vehicle state information is the vehicle state information of an accident vehicle; and transmitting the vehicle state information of the vehicle to which the vehicle belongs to the nearby vehicle.
In one exemplary embodiment, the vehicle state information includes one or more of the following: automobile temperature information, information whether collision occurs, information whether flameout occurs and safety airbag state information.
The application also provides a vehicle distance alarm method, which comprises the following steps:
receiving and analyzing wireless signals of nearby vehicles;
calculating the distance of nearby vehicles according to the analyzed information of the wireless signals, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity, and comparing the calculated distance with a preset safety distance;
and when the calculated distance is less than or equal to the preset safety distance, sending an alarm signal.
In an exemplary embodiment, wireless signals of the nearby vehicle are received and interpreted by a plurality of on-board probes disposed at different locations of the vehicle.
In one exemplary embodiment, the information of the parsed wireless signal further includes vehicle state information;
the method further comprises the following steps:
acquiring vehicle state information of a vehicle to which the vehicle belongs, and sending the vehicle state information of the vehicle to which the vehicle belongs to nearby vehicles;
and when the analyzed vehicle state information is the vehicle state information of the accident vehicle, sending an alarm signal.
The application also provides a vehicle distance warning system, which comprises a processor and a memory, wherein the processor is used for executing the program stored in the memory so as to realize the steps of the vehicle distance warning method.
The present application also provides a computer readable storage medium having one or more programs stored thereon that are executable by one or more processors to implement the steps of the vehicle distance warning method as recited in any of the above.
Compared with the prior art, the vehicle distance alarming method and system and the computer readable storage medium have the advantages that the wireless signals of nearby vehicles are received and analyzed, the distance of the nearby vehicles is calculated according to the analyzed information of the wireless signals, the alarming signals are sent out when the calculated distance is smaller than the safe distance, the distance of the nearby vehicles is monitored in real time, the drivers of the vehicles are reminded to take measures in time, and the occurrence of major traffic accidents is effectively avoided.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a vehicle distance warning system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a scene of a mounting position of a vehicle-mounted probe according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a computing principle of a trilateration location algorithm in the related art;
FIG. 4 is a schematic structural diagram of another vehicle distance warning system according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a vehicle distance warning method according to an embodiment of the present invention.
Detailed Description
The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
Embodiment a vehicle distance warning system
As shown in fig. 1, an embodiment of the present invention provides a vehicle distance warning system, which includes an on-board probe module 101, a data processing module 102, and a warning module 103, wherein:
the vehicle-mounted probe module 101 is used for receiving and analyzing wireless signals of nearby vehicles and sending information of the analyzed wireless signals to the data processing module 102, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity;
the data processing module 102 is configured to calculate a distance between nearby vehicles according to the information of the wireless signal, compare the calculated distance with a preset safety distance, and notify the alarm module 103 when the calculated distance is less than or equal to the preset safety distance;
and the alarm module 103 is configured to receive the notification from the data processing module 102 and send an alarm signal.
It should be noted that, when the calculated distance is greater than the preset safe distance, the data processing module 102 notifies the alarm module 103 to release the alarm signal.
In an exemplary embodiment, the preset safety distance is 300-500 m.
In an exemplary embodiment, the on-board probe module includes a plurality of on-board probes disposed at different locations of the vehicle.
In an example of the embodiment, the number of the on-board probes is at least three, and the at least three on-board probes are respectively arranged at the head, the body and the tail of the vehicle.
As shown in fig. 2, three vehicle-mounted probes are mounted on each vehicle, the three vehicle-mounted probes on the vehicle can detect the position coordinates of the three vehicle-mounted probes on other vehicles, and the safe distance between the two vehicles is a distance value with the minimum value. It should be noted that, the vehicle-mounted probe module 101 of the present application is not limited to specifically providing several vehicle-mounted probes, and the position of each vehicle-mounted probe, for example, one more probe may be provided at the vehicle body position (i.e., two or more vehicle-mounted probes are provided at the vehicle body position) to generate an accurate warning in the vehicle width direction.
In an exemplary embodiment, the method by which the data processing module 102 calculates the distance to nearby vehicles is a trilateration location algorithm.
It should be noted that the data processing module 102 of the present application is not limited to which positioning algorithm is specifically used to calculate the distance of the nearby vehicle, and it falls within the scope of the present application as long as the distance of the nearby vehicle is calculated according to the information of the wireless signal received by the vehicle-mounted probe. For example, in addition to trilateration location algorithms, clustering algorithms such as K-Means (K-Means) or Overlap (Overlap) may be used to calculate the location coordinates of the detected wireless device.
In an exemplary embodiment, the wireless signal includes any one of the following wireless signals: a bluetooth signal, a Radio Frequency Identification (RFID) Radio signal, a wifi (wireless fidelity) Radio signal, an industrial wireless control signal, an infrared signal, an Ultra Wide Band (UWB) Radio signal, a ZigBee Radio signal, and a Near Field Communication (NFC) Radio signal.
It should be noted that the transmission source may be a WiFi probe device, or may also be a bluetooth device or other radio device. The following description takes a WiFi probe as an example:
the WiFi probe can provide basic identification data and can be used for identification of identification information. The WiFi probe can acquire Media Access Control (MAC) addresses within a certain range, and the acquired data is not limited. The WiFi positioning is realized by applying an MAC positioning technology to a scene of real-time tracking and identification, and wireless equipment is timely discovered and tracked through the real-time positioning technology. By running a positioning algorithm, the position coordinates of the detected wireless device can be calculated.
The wireless signal is usually affected by path loss, shadow fading, etc. during transmission, and the variation of the received signal power with distance can be given by a signal transmission loss model. The transmission loss model can generally be simplified as follows: pr(d) K-10lg (d) (dbm), wherein PrFor the received power at the receiver, d represents the distance between the receiver and the transmitter, represents the loss factor of free space, dBm represents decibel-milliwatt, and K is the following constant:
wherein d is0Is a unit distance, typically taking a value of 1 meter. As can be seen from the above, the attenuation of the average Received Signal Strength (RSS) at different distances from the fixed Signal transmission source is proportional to the logarithm of the distance, and based on this model, the relationship between the distance and the Received Signal can be found by online learning.
According to the transmission loss model described above, if the loss coefficient and the constant K are known in one propagation environment, the RSS at different distance positions from a fixed transmission source can be estimated. And K can be initialized and obtained through simulation or building environment test.
In an exemplary embodiment, the location coordinates of the detected wireless device may be obtained by:
1) recording triplets with the same MAC address in a received wireless signal according to time TiArranging from small to large, and taking the receiving intensity and the receiving time of the wireless signals of the nearby vehicles detected for the last n times to obtain (P)1，T1)…(Pi，Ti)…(Pn，Tn) Wherein, Ti+1＞Ti，1≤i≤n，3≤n≤5，PiFor the reception intensity, T, of the wireless signal received by the ith vehicle-mounted probeiThe receiving time of the wireless signal received by the ith vehicle-mounted probe is;
2) converting the received signal strength value into a distance value according to a transmission loss model by using a conversion formula as follows:
3) the position coordinates of the detected wireless device are obtained according to a trilateration location algorithm.
Trilateration (Trilateration) location is a common location algorithm. As shown in FIG. 3, the three point positions (x) are known1，y1)，(x2，y2)，(x3，y3) The unknown point (x) is known0，y0) The distances to these three points are respectively d1、d2、d3Calculating the unknown point (x)0，y0) The position coordinates of (a). The calculation method is as follows:
using d1, d2 and d3 as radii to make three circles, and obtaining a position calculation formula of an intersection point, namely an unknown point according to the Pythagorean theorem:
in actual positioning, a given distance cannot really allow three circles to intersect at a point due to measurement errors, and a rectangle needs to be drawn in an intersection area and the center position of the rectangle needs to be calculated.
In an exemplary embodiment, as shown in fig. 4, the vehicle distance warning system further includes a status sensing module 104, wherein:
the information of the wireless signal analyzed by the vehicle-mounted probe module 101 further includes vehicle state information;
the state sensing module 104 is configured to acquire vehicle state information of a vehicle to which the state sensing module belongs, and send the acquired vehicle state information to the data processing module 102;
the data processing module 102 is further configured to receive the vehicle state information of the state sensing module 104, and send an alarm signal when the received vehicle state information is the vehicle state information of an accident vehicle; and transmitting the vehicle state information of the vehicle to which the vehicle belongs to the nearby vehicle.
In one exemplary embodiment, the vehicle state information includes one or more of the following: automobile temperature information, information whether collision occurs, information whether flameout occurs and safety airbag state information.
It should be noted that, when the data processing module 102 of the present application determines that there is an accident vehicle ahead according to the analyzed vehicle state information, it may notify the alarm module 103 to generate an alarm signal, and at this time, regardless of whether the distance between the accident vehicle and the vehicle is beyond the safe distance, so that the user may take measures as early as possible to avoid the accident vehicle as possible.
Embodiment two-vehicle distance alarm method
As shown in fig. 5, an embodiment of the present invention further provides a vehicle distance warning method, including the following steps:
step 501: receiving and analyzing wireless signals of nearby vehicles;
in an exemplary embodiment, the vehicle distance alarming method receives and analyzes wireless signals of nearby vehicles through a plurality of vehicle-mounted probes arranged at different positions of the vehicles.
In an example of the embodiment, the number of the on-board probes is at least three, and the at least three on-board probes are respectively arranged at the head, the body and the tail of the vehicle.
As shown in fig. 2, three vehicle-mounted probes are mounted on each vehicle, the three vehicle-mounted probes on the vehicle can detect the position coordinates of the three vehicle-mounted probes on other vehicles, and the safe distance between the two vehicles is a distance value with the minimum value. It should be noted that, the present application is not limited to specifically setting several vehicle-mounted probes, and the position of each vehicle-mounted probe, for example, one more probe may be set at the vehicle body position (i.e. two or more vehicle-mounted probes are set at the vehicle body position) to generate an accurate warning in the vehicle width direction.
In an exemplary embodiment, the wireless signal includes any one of the following wireless signals: bluetooth signal, RFID radio signal, WiFi radio signal, industry wireless control signal, infrared signal, UWB radio signal, zigBee radio signal, NFC radio signal.
Step 502: calculating the distance of nearby vehicles according to the analyzed information of the wireless signals, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity, and comparing the calculated distance with a preset safety distance;
in one exemplary embodiment, the method by which the vehicle range alert method calculates the range of the nearby vehicle is a trilateration location algorithm.
In the actual positioning, the present application does not limit which positioning algorithm is specifically used to calculate the distance of the nearby vehicle, and it falls within the protection scope of the present application as long as the distance of the nearby vehicle is calculated according to the information of the wireless signal received by the vehicle-mounted probe. For example, in addition to trilateration location algorithms, clustering algorithms such as K-Means or Overlap may be used to calculate the location coordinates of the detected wireless device.
Step 503: and when the calculated distance is less than or equal to the preset safety distance, sending an alarm signal.
When the calculated distance is greater than the preset safe distance, the alarm signal is released, the process returns to step 501, and the loop execution is continued.
In an exemplary embodiment, the preset safety distance is 300-500 m.
In one exemplary embodiment, the information of the parsed wireless signal further includes vehicle state information;
the method further comprises the following steps:
acquiring vehicle state information of a vehicle to which the vehicle belongs, and sending the vehicle state information of the vehicle to which the vehicle belongs to nearby vehicles;
and when the analyzed vehicle state information is the vehicle state information of the accident vehicle, sending an alarm signal.
It should be noted that, when the vehicle with an accident ahead is judged according to the analyzed vehicle state information, the alarm signal can be directly generated, and at this time, the user can take a countermeasure as early as possible to avoid the accident vehicle as possible regardless of whether the distance between the accident vehicle and the vehicle is beyond the safe distance.
In one exemplary embodiment, the vehicle state information includes one or more of the following: automobile temperature information, information whether collision occurs, information whether flameout occurs and safety airbag state information.
Embodiment three vehicle distance alarm system
The embodiment of the invention also provides a vehicle distance alarm system, which comprises a processor and a memory, wherein the processor is used for executing the program stored in the memory so as to realize the steps of the vehicle distance alarm method.
Example four computer-readable storage Medium
Embodiments also provide a computer readable storage medium, on which one or more programs are stored, the one or more programs being executable by one or more processors to implement the steps of the vehicle distance warning method as described in any one of the above.
The following illustrates how to apply the vehicle distance warning system and method of the present application through two practical application scenarios.
First application scenario:
step 10: when a user drives a vehicle provided with the vehicle distance alarm system, and the vehicle runs on the road, the WiFi probe receives wireless signals of nearby vehicles and analyzes the received signals to obtain the received intensity, the received time and the equipment identification of the wireless signals;
step 20: the vehicle distance alarm system calculates and obtains real-time distance information of nearby vehicles from the vehicle to which the vehicle distance alarm system belongs according to the analyzed information of the wireless signals;
step 30: the vehicle distance alarm system compares the calculated distance information with a preset safe distance, and sends an alarm signal if the calculated distance is smaller than the safe distance;
step 40: and when the calculated distance is greater than the safe distance, the alarm signal is released.
In an exemplary embodiment, the vehicle distance warning system provided by the present application may further include: the vehicle, user, MAC address, location information, etc. are stored in a preset server for later use.
Second application scenario:
step 50: when a user drives a vehicle provided with the vehicle distance alarm system, and the vehicle runs on the road, the WiFi probe receives wireless signals of nearby vehicles, analyzes the received intensity, the received time and the equipment identification of the wireless signals, and also analyzes vehicle state information sent by the nearby vehicles;
in an exemplary embodiment, the opposite vehicle is judged to be an accident vehicle according to the analyzed vehicle state information, and the WiFi probe outputs an analysis result to the data processing module;
step 60: the data processing module obtains real-time distance information of the accident vehicle after calculation and processing;
step 70: the system sends out an alarm signal and displays the real-time distance between the system and the accident vehicle;
step 80: and when the calculated real-time distance is greater than the safe distance or the user selects to manually remove the alarm signal, removing the alarm signal.
By adopting the method for monitoring the wireless signals of the nearby vehicles by the vehicle-mounted probe, the data of the nearby vehicles and the wireless equipment can be monitored and early warned at the same time, the vehicle driver is reminded to take measures in time, and further the occurrence of major traffic accidents is avoided.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (11)
1. The utility model provides a vehicle distance alarm system which characterized in that, includes on-vehicle probe module, data processing module and alarm module, wherein:
the vehicle-mounted probe module is used for receiving and analyzing wireless signals of nearby vehicles and sending the information of the analyzed wireless signals to the data processing module, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity;
the data processing module is used for calculating the distance of nearby vehicles according to the information of the wireless signals, comparing the calculated distance with a preset safe distance, and informing the alarm module when the calculated distance is smaller than or equal to the preset safe distance;
and the alarm module is used for receiving the notification of the data processing module and sending an alarm signal.
2. The vehicle distance warning system of claim 1, wherein the on-board probe module includes a plurality of on-board probes disposed at different locations of the vehicle.
3. The vehicle distance alarm system of claim 2, wherein the number of the vehicle-mounted probes is at least three, and the at least three vehicle-mounted probes are respectively arranged at the head, body and tail positions of the vehicle;
the method for calculating the distance of the nearby vehicle by the data processing module is a trilateration positioning algorithm.
4. The vehicle distance warning system of claim 1, wherein the wireless signal comprises any one of the following wireless signals: bluetooth signal, radio frequency identification RFID radio signal, WiFi radio signal, industry wireless control signal, infrared signal, ultra wide band UWB radio signal, ZigBee radio signal, near field communication NFC radio signal.
5. The vehicle distance warning system of claim 1, further comprising a status sensing module, wherein:
the information of the wireless signals analyzed by the vehicle-mounted probe module also comprises vehicle state information;
the state sensing module is used for acquiring the vehicle state information of the vehicle to which the state sensing module belongs and sending the acquired vehicle state information to the data processing module;
the data processing module is also used for receiving the vehicle state information of the state sensing module and sending an alarm signal when the received vehicle state information is the vehicle state information of an accident vehicle; and transmitting the vehicle state information of the vehicle to which the vehicle belongs to the nearby vehicle.
6. The vehicle distance warning system of claim 5, wherein the vehicle status information includes one or more of: automobile temperature information, information whether collision occurs, information whether flameout occurs and safety airbag state information.
7. A vehicle distance warning method, characterized by comprising:
receiving and analyzing wireless signals of nearby vehicles;
calculating the distance of nearby vehicles according to the analyzed information of the wireless signals, wherein the information of the wireless signals comprises equipment identification, receiving time and receiving intensity, and comparing the calculated distance with a preset safety distance;
and when the calculated distance is less than or equal to the preset safety distance, sending an alarm signal.
8. The vehicle distance warning method according to claim 7, wherein the wireless signal of the nearby vehicle is received and analyzed by a plurality of on-vehicle probes provided at different positions of the vehicle.
9. The vehicle distance warning method according to claim 7, wherein the information of the analyzed wireless signal further includes vehicle state information;
the method further comprises the following steps:
acquiring vehicle state information of a vehicle to which the vehicle belongs, and sending the vehicle state information of the vehicle to which the vehicle belongs to nearby vehicles;
and when the analyzed vehicle state information is the vehicle state information of the accident vehicle, sending an alarm signal.
10. A vehicle distance warning system comprising a processor and a memory, the processor being configured to execute a program stored in the memory to implement the steps of the vehicle distance warning method according to any one of claims 7 to 9.
11. A computer-readable storage medium, characterized in that one or more programs are stored thereon, the one or more programs being executable by one or more processors to implement the steps of the vehicle distance warning method according to any one of claims 7 to 9.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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