CN110264742B - Vehicle-mounted information monitoring device suitable for expressway and warning method thereof - Google Patents
Vehicle-mounted information monitoring device suitable for expressway and warning method thereof Download PDFInfo
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- CN110264742B CN110264742B CN201910537264.3A CN201910537264A CN110264742B CN 110264742 B CN110264742 B CN 110264742B CN 201910537264 A CN201910537264 A CN 201910537264A CN 110264742 B CN110264742 B CN 110264742B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
Abstract
The invention discloses a vehicle-mounted information monitoring device suitable for an expressway, which comprises: the device comprises a speed measuring module, a radio frequency communication module, a processing module and a prompting module; the speed measuring module is used for acquiring the real-time speed of vehicle running; the radio frequency communication module is used for receiving wireless signals sent by a highway; the processing module is connected with the speed measuring module and the radio frequency communication module and is used for processing the received wireless signals and the acquired real-time running speed of the vehicle and generating a processing result; and the prompt module is connected with the processing module and used for generating prompt information according to a processing result. The invention can monitor and collect the running information of the vehicle in real time, including the speed, the lane information and the like, thereby realizing the monitoring and prompt of the whole course of the vehicle.
Description
Technical Field
The invention relates to the technical field of traffic management, in particular to a vehicle-mounted information monitoring device suitable for an expressway.
Background
With the continuous development of highway construction and the continuous deepening of highway market reform in China, the coverage of traffic infrastructure construction projects, particularly highway projects, is wider and wider. Meanwhile, the phenomena of overspeed driving, low-speed driving, frequent lane change and the like of vehicles on urban roads and highways are very common, so that traffic accidents frequently occur, the direct economic loss per year is nearly thousands of yuan, and meanwhile, the serious threat is brought to the personal safety of people. Therefore, it is urgent to regulate traffic order, reduce overspeed and ensure traffic safety.
At present, most of the expressways in China adopt a vehicle monitoring technology based on radar or image processing, namely, a radar speed measuring device or a camera is arranged at certain fixed points of the expressways, the movement speed of the detected vehicle is obtained through calculation of the frequency shift quantity of reflected waves received by the radar, or the vehicle speed or frequent lane change is judged through images shot by the camera. The method for monitoring the vehicle based on image processing is easily influenced by weather, and the speed measurement accuracy is low in the conditions of dense fog weather, rain and snow, night and the like; the radar speed measurement has strict requirements on speed measurement angle and large vehicle speed measurement error, and many drivers can immediately and normally drive as soon as finding an electronic eye in front under the known monitoring condition, and start overspeed driving or frequent lane changing after slowly passing through the electronic eye, so that global detection cannot be realized, evasiveness is high, and overspeed and frequent lane changing events still occur occasionally. In recent years, some provinces implement an interval monitoring technology, namely, the average speed is calculated by collecting the passing information (including time, license plate and the like) of a vehicle passing through two position points and combining the distance between the two points and the passing time so as to judge whether overspeed or low-speed behaviors exist. Although the interval speed measurement effectively avoids the disadvantage that the fixed-point speed measurement is easy to escape, the method for calculating the average speed to judge the overspeed still has the limitation: overspeed personnel can prolong the passing time by staying in a service area for a long time and the like to reduce the average speed so as to avoid punishment; the judgment accuracy depends on the placing quantity of the fixed-point speed measuring devices, but the speed measuring devices are high in cost, high investment is needed for realizing whole-course speed measurement in a wide-range popularization mode, and the implementation is not facilitated.
The patent with publication number CN207115757U discloses a system for detecting and obtaining evidence of low-speed running on a highway, which comprises a controller, two or more cameras and a velometer, wherein the cameras comprise a video module and a photographing module, and the cameras are electrically connected with and controlled by the controller; the speed meter transmits vehicle speed data to the controller, the controller presets a lowest vehicle running value, and the controller controls the video recorder to be started and stopped according to a comparison result of the speed data transmitted by the speed meter and the preset lowest vehicle running value; the utility model provides a cost is lower, prevent the accident of knocking into the back, and the absolute real highway low-speed that traveles of data of collecting evidence detects the system of collecting evidence. Although it can detect whether the vehicle is driven at low speed, it still adopts traditional tachymeter, video module, the module of shooing, still can not effectual solution highway go the problem that exists, can't guarantee the safety of driving.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a vehicle-mounted information monitoring device suitable for an expressway, which can monitor and collect vehicle running information including vehicle speed, lane information and the like in real time, so that the whole process of the vehicle can be monitored and timely reminded.
In order to achieve the purpose, the invention adopts the following technical scheme:
an on-vehicle information monitoring device suitable for highway includes: the device comprises a speed measuring module, a radio frequency communication module, a processing module and a prompting module;
the speed measuring module is used for acquiring the real-time speed of the vehicle running;
the radio frequency communication module is used for receiving wireless signals sent by a highway;
the processing module is connected with the speed measuring module and the radio frequency communication module and is used for processing the received wireless signals and the acquired real-time running speed of the vehicle and generating a processing result;
and the prompt module is connected with the processing module and used for generating prompt information according to a processing result.
Further, the system also comprises a vehicle information acquisition module;
the vehicle information acquisition module is used for acquiring the information of the vehicle; the vehicle information includes a vehicle type and a license plate.
Further, the highway is provided with a radio frequency module; the wireless signal sent by the expressway is received by a radio frequency module arranged beside the expressway.
Further, the received wireless signal includes lane information, a highest speed value of the current road section, and a lowest speed value of the current road section.
Further, the processing module processes the received wireless signal and the acquired real-time speed of the vehicle running, namely, the real-time speed of the vehicle running is judged according to the received highest speed value and lowest speed value of the current road section; if the speed is higher than the highest speed value of the current road section, overspeed driving is performed; if the speed is lower than the lowest speed value of the current road section, the vehicle runs at a low speed; and if the speed is between the highest speed value and the lowest speed value of the current road section, the vehicle is normally driven.
Furthermore, the prompt module comprises a sound prompt, a vibration prompt and a light prompt.
Further, if the current speed is overspeed driving or the current speed is low speed driving, prompting is carried out through one or more of sound, vibration and light; and if the current vehicle speed is normal driving, no prompt is given.
Further, the device also comprises a display module;
the display module is used for displaying the lane information of the current vehicle, the highest speed value of the current road section and the lowest speed value of the current road section.
Further, the lane information is determined by an RSSI value.
The invention also provides a warning method of the vehicle-mounted information monitoring device based on the expressway, which comprises the vehicle-mounted information monitoring device suitable for the expressway.
Compared with the prior art, the invention has the following advantages:
1. the speed measuring module adopted by the invention can monitor the running speed of the vehicle in real time, and has strong stability and high accuracy.
2. The invention also comprises the step of receiving the lane information of the current vehicle, so that the driver can accurately know the position of the vehicle.
3. The processing module in the vehicle-mounted device realizes the judgment of the highest speed value and the lowest speed value of the current speed measurement and the current road section, informs the result of overspeed or low speed to the driver, and can remind the driver in time.
4. The vehicle-mounted device can improve the driving safety of the highway and effectively avoid accidents.
Drawings
FIG. 1 is a block diagram of a vehicular information monitoring device suitable for an expressway according to one embodiment;
FIG. 2 is a schematic diagram illustrating a two-way wireless communication between the vehicle-mounted device and a second RF communication module according to an embodiment;
fig. 3 is a schematic diagram of a rear-end collision prevention of a vehicle of the vehicle-mounted information monitoring device based on the expressway according to the fourth embodiment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The invention aims to provide a vehicle-mounted information monitoring device suitable for an expressway, aiming at the defects of the prior art.
Example one
The present embodiment provides a vehicle-mounted information monitoring device suitable for an expressway, as shown in fig. 1, including: the device comprises a speed measuring module 11, a radio frequency communication module 12, a processing module 13 and a prompting module 14;
the speed measuring module 11 is used for acquiring the real-time speed of the vehicle running;
the radio frequency communication module 12 is configured to receive a wireless signal sent by an expressway;
the processing module 13 is connected with the speed measuring module 11 and the radio frequency communication module 12, and is used for processing the received wireless signals and the acquired real-time speed of the vehicle running and generating a processing result;
and the prompt module 14 is connected with the processing module 13 and is used for generating prompt information according to the processing result.
The vehicle-mounted device is a pass card used when the vehicle enters and exits at a high speed; the embodiment transforms the passing card into the vehicle-mounted device.
In this embodiment, the vehicle-mounted device further includes a vehicle information acquisition module;
the vehicle information acquisition module is used for acquiring the information of the vehicle; the vehicle information includes a vehicle type and a license plate.
When the vehicle enters the highway, the issued vehicle-mounted device is associated with vehicle information, wherein the vehicle type comprises a car, a truck and a special vehicle, and the special vehicle comprises an ambulance, a fire engine and the like.
And the speed measuring module 11 is used for acquiring the real-time speed of the vehicle running.
In this embodiment, the speed measuring module adopts a speed measuring sensor, and the speed measuring sensor is arranged in the vehicle-mounted device, so that the real-time speed measurement of the vehicle can be realized.
And the radio frequency communication module 12 is used for receiving wireless signals sent by the highway.
In this embodiment, a radio frequency module is disposed beside the highway; the wireless signal that the highway sent is received to the radio frequency module that receives to set up in the highway median sends wireless signal, wherein, through setting up shielding mechanism, makes the radio frequency module of highway side be loudspeaker form directional receiving and dispatching wireless signal.
In this embodiment, for convenience of understanding the specific implementation of the present invention, in this embodiment, a radio frequency communication module disposed in an on-board device is referred to as a first radio frequency communication module; the radio frequency module arranged on the highway isolation belt is called as a second radio frequency communication module. The first radio frequency communication module and the second radio frequency communication module carry out bidirectional wireless communication.
The second radio frequency communication modules are arranged on the highway isolation belt at equal intervals. In the embodiment, the second radio frequency communication modules are arranged at equal intervals according to a certain distance on a common section of the highway; and in the accident-prone road section, the second radio frequency communication modules can be arranged relatively densely.
The processing module 13 is connected with the speed measuring module and the first radio frequency communication module and is used for processing the received wireless signals and the acquired real-time speed of the vehicle running and generating a processing result;
in this embodiment, the acquired real-time speed of the vehicle is the real-time speed of the vehicle detected by the speed measurement sensor.
The received wireless signals comprise lane information, the highest speed value of the current road section and the lowest speed value of the current road section. The lane information comprises an emergency lane, a passing lane and a traffic lane.
In this embodiment, the second radio frequency communication module stores basic information of each lane; the information of each lane comprises an RSSI value of the distance between each lane and the highway isolation belt, the width of each lane, the highest speed value of the current road section and the lowest speed value of the current road section.
In this embodiment, when a vehicle enters a highway, the issued vehicle-mounted device is associated with vehicle information, the first radio frequency communication module of the vehicle-mounted device sends a request signal to the second radio frequency communication module in real time, and after the second radio frequency communication module receives the request signal, the vehicle type and the license plate of the vehicle are read, and the RSSI value of the wireless signal can be obtained through the signal strength. . Generally, the RSSI value of a wireless signal is related to the distance between two communication parties, and the larger the distance is, the weaker the signal is, the smaller the RSSI value is; according to the RSSI value, the transverse distance between the vehicle and the isolation belt can be judged, and therefore the lane where the vehicle is located can be judged.
And the second radio frequency communication module compares the acquired RSSI value with the prestored RSSI values of the distances between each lane and the highway isolation belt, further determines lane information (emergency lane, overtaking lane and traffic lane) of the vehicle, and sends the stored highest speed value, lowest speed value and lane information of the current road section to the vehicle-mounted device after knowing the lane information of the vehicle. If the current vehicle is a car and is in a traffic lane, the highest speed value of the current road section is 120km/h, and the lowest speed value is 60 km/h.
When the vehicle-mounted device receives the wireless signal sent by the second radio frequency communication module, a processing module in the vehicle-mounted device processes the received lane information and the acquired real-time running speed of the vehicle, and when the running speed of the vehicle is between the highest speed value and the lowest speed value, if the running speed is 100km/h, the vehicle runs normally and is not processed; when the running speed of the vehicle is greater than the highest speed value, if 160km/h, overspeed running is performed, and overspeed information of the vehicle is acquired; and when the running speed of the vehicle is less than the minimum speed value, such as 40km/h, running at a low speed, and acquiring low-speed information of the vehicle.
The embodiment further comprises the step of recording the lane information and the position information of the current vehicle if the current vehicle is a car and the obtained lane information is that the current vehicle is in an emergency lane.
If the current vehicle is a large truck, the obtained lane information is that the vehicle is in a passing lane, and if the current road section position does not allow the large truck to enter the passing lane, the lane information and the position information of the large truck are recorded.
And if the current vehicle is an ambulance and the obtained lane information is that the current vehicle is in an emergency lane, not processing.
Note that, as shown in FIG. 2, Mi、Mi+1、Mi+2A second radio frequency communication module arranged at equal intervals, wherein i is more than or equal to 1, and the vehicle C1 is currently positioned at MiThe total width of a passing lane, the width of a running lane and the width of an emergency lane in the passing direction of the highway is set to be about 11M, the length of the vehicle C1 is set to be about 5M, and the propagation speed of a radio frequency signal in the air is calculated to ensure that the vehicle C1 can pass through the M even if the response speed of relevant software and hardware in the communication process is considerediAnd then, a complete wireless communication process with sending and receiving is completed between the two.
But in order to prevent the vehicle C1 from receiving the second radio frequency communication module M in a missing wayiThe answer signal of (2) can ensure that the communication is error-free, and another scheme can be adopted, and the complete process is as follows: the vehicle C1 sends a request signal, the second radio frequency communication module MiA next second radio frequency communication module (M) informing its front (vehicle driving direction) immediately after receptioni+1) Or next batch of second radio frequency communication modules (M)i+1、Mi+2) The next module/batch is made to start sending response signal periodically, and thenWhen the vehicle runs, at least 1 response signal sent by the second radio frequency communication module is received by the vehicle.
It should be noted that each second radio frequency communication module is in communication connection with a mobile public network wireless communication module (such as a 4G module) or a wired communication module (such as 485). In this embodiment, how to communicate between the second radio frequency communication modules is not limited.
And the prompt module 14 is connected with the processing module and used for generating prompt information according to the processing result.
Wherein, the prompt module comprises a sound prompt, a vibration prompt and a light prompt.
If the generated processing result is overspeed driving, prompting is carried out through one or more of sound, vibration and light, so that a driver is warned; if the generated result is normal driving, no prompt is given; if the generated processing result is low-speed driving, the driver is warned by one or more of sound, vibration and light.
In this embodiment, if the current vehicle is a car and the obtained lane information indicates that the current vehicle is in an emergency lane, the driver is warned by one or more of sound, vibration and light.
If the current vehicle is a large truck, the obtained lane information indicates that the vehicle is in a passing lane, and if the current road section position does not allow the large truck to enter the passing lane, the vehicle is prompted through one or more of sound, vibration and light, so that a driver is warned.
If the current vehicle is an ambulance and the obtained lane information is that the current vehicle is in an emergency lane, no prompt is given.
In practical applications, not only the driving situation proposed in this embodiment is limited, but many situations are not easy to analyze based on the technical solution disclosed in this embodiment, and are not described herein again.
The embodiment further comprises a display module, which is used for displaying the lane information of the current vehicle, the highest speed value of the current road section and the lowest speed value of the current road section.
And when the wireless signal sent by the second radio frequency communication module is received, displaying the lane information of the current vehicle, the highest speed value of the current road section and the lowest speed value of the current road section. If the current vehicle is in the traffic lane, the highest speed value of the current road section is 120km/h, and the lowest speed value is 60km/h, the driver can conveniently adjust the current vehicle speed and the lane in time.
It should be noted that, the vehicle-mounted device receives the wireless signal sent by the second radio frequency communication module in real time, and therefore, the display module can update the displayed content in time according to the received wireless signal.
Compared with the prior art, the invention has the following advantages:
1. the speed measuring module that this embodiment adopted can the real-time supervision vehicle the speed of traveling, and stability is strong, and the accuracy is high.
2. The embodiment also comprises the step of receiving the lane information of the current vehicle, so that the driver can accurately know the position of the vehicle.
3. The processing module in the vehicle-mounted device realizes the judgment of the highest speed value and the lowest speed value of the current speed measurement and the current road section, informs the result of overspeed or low speed to the driver, and can remind the driver in time.
4. The vehicle-mounted device of the embodiment can improve the driving safety of the highway and effectively avoid accidents.
5. According to the embodiment, the speed limit values of different types of vehicles, different road sections on the expressway, different expressways and different lanes can be different, and automatic judgment can be realized by using the scheme.
6. The embodiment can also judge whether the vehicle enters an emergency road or not, and the vehicles of different types are treated differently.
Correspondingly, the embodiment also provides a warning method of the vehicle-mounted information monitoring device based on the expressway, which comprises the vehicle-mounted information monitoring device suitable for the expressway.
Example two
The difference between the vehicle-mounted information monitoring device applicable to the expressway of the embodiment one and the embodiment one is that:
in this embodiment, the second rf communication module corresponding to the current road segment receives the road segment conditions sent by the second rf communication module of the next/batch (the vehicle driving direction), such as an uphill road, a downhill road, an accident-prone road, and the like, the second rf communication module corresponding to the current road segment sends the wireless signal to the vehicle-mounted device, and the prompt module in the vehicle-mounted device reminds the driver, such as by voice broadcasting the road segment condition to be entered, if the voice broadcasting content is "the road segment with multiple accidents to be entered, please drive cautiously" or "the road segment with uphill road ahead, please drive cautiously" and the like.
In this embodiment, after the vehicle-mounted device receives the transmitted wireless signal, the display module displays the condition of the road section to be entered.
It should be noted that each second radio frequency communication module is in communication connection with a mobile public network wireless communication module (such as a 4G module) or a wired communication module (such as 485). In this embodiment, how to communicate between the second radio frequency communication modules is not limited.
The embodiment reminds the driver before entering the sections of uphill, downhill and easy accident occurrence, plays a role in early warning, and effectively avoids accidents.
EXAMPLE III
The difference between the vehicle-mounted information monitoring device applicable to the expressway of the embodiment one and the embodiment one is that:
in this embodiment, the vehicle-mounted device receives the wireless signal sent by the second radio frequency communication module in real time, that is, the vehicle-mounted device records the current lane situation of the vehicle in real time.
In this embodiment, a time threshold is preset, and in the driving process of the vehicle, the vehicle-mounted device judges the lane condition of the current vehicle in real time, and if it is detected that the current vehicle makes multiple lane changes within the time threshold, the lane changes are frequent, and the driver is warned by one or more of sound, vibration and light.
The multiple lane changing can set corresponding times according to actual conditions, for example, the multiple lane changing is 3 times lane changing.
In the driving process of the vehicle, the vehicle-mounted device continuously records the lane condition of the vehicle, so that whether the vehicle changes lanes frequently or not can be known, and if the lane changes frequently, corresponding warning is given.
Example four
The difference between the vehicle-mounted information monitoring device applicable to the expressway of the embodiment one and the embodiment one is that:
the embodiment is described in detail by a vehicle rear-end collision prevention method based on a highway vehicle-mounted information monitoring device.
As shown in fig. 3, the present embodiment takes a general road segment as an example to specifically describe.
In the present embodiment, it is assumed that the vehicle C1 is currently located at the second rf communication module Mi+2The on-board device in the vehicle C1 and the second radio frequency communication module Mi+2Two-way wireless communication (i ≧ 1), and the vehicle speed of C1 is the normal vehicle speed. The safe distance between the vehicle C1 and the rear vehicle C2 is a second radio frequency communication module Mi+2To the second radio frequency communication module MiThe safe distance between the vehicle C1 and the front vehicle C3 is the second radio frequency communication module Mi+2To the second radio frequency communication module Mi+4The distance of (c).
It should be noted that each second radio frequency communication module is in communication connection with a mobile public network wireless communication module (such as a 4G module) or a wired communication module (such as 485). In this embodiment, how to communicate between the second radio frequency communication modules is not limited.
The present embodiment takes the rear vehicle C2 as an example to be specifically explained:
it should be noted that, in this embodiment, the second radio frequency communication module corresponding to the vehicle C2 is Mi、 Mi+1The second rf communication module corresponding to the vehicle C2 may also detect the speed and lane condition of the vehicle C2 in real time. The detection method is similar to the embodiment, and is not described herein.
In this embodiment, the second RF communication module Mi+2When a running vehicle is detected, the result is marked as C1, and at this time, the second radio frequency communication module M is currently usedi+2Rearward second radio frequency communication moduleMi、Mi+1Sending an interrogation signal, wherein the interrogation signal comprises whether the presence of the vehicle is detected, and waiting for the second radio frequency communication module Mi、Mi+1Replying; in this embodiment, a preset time threshold is further included, if the second rf communication module M is usedi+2Receiving no reply within a preset time, which indicates that the second radio frequency communication module M isi、Mi+1If no running vehicle is detected, continuing to send the second radio frequency communication module Mi、Mi+1Sending an interrogation signal; if the second radio frequency communication module Mi+2If the reply is received within the preset time, the received signal is judged to pass through the second radio frequency communication module MiReverting to the second radio frequency communication module Mi+1And (6) recovering.
If the received signal passes through the second radio frequency communication module MiIf the vehicle C1 is a safe distance from the vehicle C2, the second rf communication module M is marked as C2iSending the detected speed of the vehicle C2 to the second radio frequency communication module Mi+2If the vehicle C2 is running at the normal speed, no processing is performed; if the vehicle C2 is speeding, the second RF communication module Mi+2The received vehicle speed of C2 is transmitted to the in-vehicle device of vehicle C1, at which time the in-vehicle device of vehicle C1 will alert the driver to the rear vehicle speeding. The reminding mode comprises one or more of sound, vibration and light for reminding.
In this embodiment, when the vehicle-mounted device corresponding to the vehicle C2 detects that the vehicle is speeding, the vehicle-mounted device gives a prompt through one or more of sound, vibration and light so as to warn the driver.
If the embodiment detects that the rear vehicle runs at an excessive speed, the vehicle-mounted device of the rear vehicle timely reminds the driver, and meanwhile, the vehicle-mounted device of the current vehicle can remind the driver of paying attention to the excessive speed running of the rear vehicle, so that accidents are effectively avoided.
If the received signal passes through the second radio frequency communication module Mi+1If the vehicle returns, it is marked as C2, and since the distance between the vehicle C1 and the vehicle C2 is less than the safety distance, the second RF signal is usedCommunication module Mi+1Sending the detected speed and lane information of the vehicle C2 to the second radio frequency communication module Mi+2Then the second radio frequency communication module Mi+2The received vehicle speed and lane information of C2 is sent to the vehicle-mounted device of vehicle C1, and at this time, the vehicle-mounted device of vehicle C1 will remind the driver of paying attention to the vehicle behind or reminding the driver of a lane change in time.
The present embodiment takes the front vehicle C3 as an example to be specifically explained:
it should be noted that, in this embodiment, the second radio frequency communication module corresponding to the vehicle C3 is Mi+3、 Mi+4The second rf communication module corresponding to the vehicle C3 may also detect the speed and lane condition of the vehicle C3 in real time. The detection method is similar to the embodiment, and is not described herein.
In this embodiment, the second RF communication module Mi+2When a running vehicle is detected, the result is marked as C1, and at this time, the second radio frequency communication module M is currently usedi+2Second radio frequency communication module M towards the fronti+3、Mi+4Sending an interrogation signal, wherein the interrogation signal comprises whether the presence of the vehicle is detected, and waiting for the second radio frequency communication module Mi+3、Mi+4Replying;
in this embodiment, a preset time threshold is further included, if the second rf communication module M is usedi+2Receiving no reply within a preset time, which indicates that the second radio frequency communication module M isi+3、Mi+4If no running vehicle is detected, continuing to send the second radio frequency communication module Mi+3、Mi+4Sending an interrogation signal; if the second radio frequency communication module Mi+2If the reply is received within the preset time, the received signal is judged to pass through the second radio frequency communication module Mi+3Reverting to the second radio frequency communication module Mi+4And (6) recovering.
If the received signal passes through the second radio frequency communication module Mi+4If the vehicle is at a safe distance from the vehicle C1, the second rf communication module M is marked as C3, and the vehicle C1 is located at a safe distance from the vehicle C3i+4Sending the detected speed of the vehicle C3 to a second radio frequency communicationModule Mi+2If the vehicle C3 is running at the normal speed, no processing is performed; if the vehicle C3 is running at a low speed, the second RF communication module Mi+2The received vehicle speed of C3 is transmitted to the in-vehicle device of the vehicle C1, and at this time, the in-vehicle device of the vehicle C1 reminds the driver of the low speed running of the preceding vehicle. The reminding mode comprises one or more of sound, vibration and light for reminding.
In this embodiment, when the vehicle-mounted device corresponding to the vehicle C3 detects that the vehicle is running at a low speed, the vehicle-mounted device gives a prompt through one or more of sound, vibration and light so as to warn the driver.
If the embodiment detects that the front vehicle runs at a low speed, the vehicle-mounted device of the front vehicle timely reminds the driver, and meanwhile, the vehicle-mounted device of the current vehicle can remind the driver of paying attention to the low-speed running of the front vehicle, so that accidents are effectively avoided.
If the received signal passes through the second radio frequency communication module Mi+3If the vehicle C1 and the vehicle C3 are less than the safety distance, the second rf communication module M is marked as C2i+3Sending the detected speed and lane information of the vehicle C3 to the second radio frequency communication module Mi+2Then the second radio frequency communication module Mi+2The received vehicle speed and lane information of C3 is sent to the vehicle-mounted device of vehicle C1, and at this time, the vehicle-mounted device of vehicle C1 will remind the driver of paying attention to the vehicle ahead, or reminding the driver of a lane change in time.
The embodiment can accurately detect the speed, the lane, the distance between the front vehicle and the rear vehicle of the running vehicle, effectively early warn rear-end collision, overspeed, low speed and the like, and remind a driver to drive cautiously through sound, light and vibration alarm modes, thereby avoiding accidents such as rear-end collision on highways, rear-end collision in a chain and the like.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides an on-vehicle information monitoring device suitable for highway which characterized in that includes: the device comprises a speed measuring module, a first radio frequency communication module, a processing module and a prompting module;
the speed measuring module is used for acquiring the real-time speed of the vehicle running;
the first radio frequency communication module is used for receiving wireless signals sent by a highway;
the processing module is connected with the speed measuring module and the first radio frequency communication module and used for processing the received wireless signals and the acquired real-time speed of vehicle running and generating a processing result;
the prompt module is connected with the processing module and used for generating prompt information according to a processing result;
the highway isolation belt is provided with a second radio frequency communication module; the wireless signal sent by the expressway is received by a second radio frequency communication module arranged on the expressway isolation belt; the shielding mechanism is arranged, so that the second radio frequency communication module directionally receives and transmits wireless signals in a horn shape;
a second radio frequency communication module arranged on the expressway isolation belt stores basic information of each lane; the basic information of each lane comprises an RSSI value of the distance between each lane and the highway isolation belt, the width of each lane, the highest speed value of the current road section and the lowest speed value of the current road section;
the vehicle-mounted information monitoring device also comprises a vehicle information acquisition module;
the vehicle information acquisition module is used for acquiring information of a vehicle; the vehicle information comprises a vehicle type and a license plate;
judging the lane information of the current vehicle according to the RSSI value;
if the current vehicle is a car and the obtained lane information is that the current vehicle is in an emergency lane, recording the lane information and the position information of the current vehicle;
if the current vehicle is a large truck, the obtained lane information is that the vehicle is in a passing lane, and if the current road section position does not allow the large truck to enter the passing lane, the lane information and the position information of the large truck are recorded;
if the current vehicle is an ambulance and the obtained lane information is that the current vehicle is in an emergency lane, the current vehicle is not processed;
the second radio frequency communication module of the highway isolation belt compares the obtained RSSI value with the prestored RSSI values of the distances between each lane and the highway isolation belt so as to determine the lane information of the vehicle;
Mi、Mi+1、Mi+2、Mi+3、Mi+4the second radio frequency communication modules are arranged on the highway isolation belt at equal intervals, wherein i is more than or equal to 1; let vehicle C1 be currently in the second radio frequency communication module Mi+2The vehicle-mounted information monitoring device in the vehicle C1 and the second radio frequency communication module Mi+2Bidirectional wireless communication, and the vehicle speed of C1 is the normal vehicle speed; the safe distance between the vehicle C1 and the rear vehicle C2 is a second radio frequency communication module Mi+2To the second radio frequency communication module MiThe safe distance between the vehicle C1 and the front vehicle C3 is the second radio frequency communication module Mi+2To the second radio frequency communication module Mi+4The distance of (d);
the current second radio frequency communication module Mi+2Rearward second radio frequency communication module Mi、Mi+1Sends out an interrogation signal and waits for a second radio frequency communication module Mi、Mi+1Replying; wherein the method further comprises presetting a time threshold value, if the second radio frequency communication module Mi+2Receiving no reply within a preset time, which indicates that the second radio frequency communication module M isi、Mi+1If no running vehicle is detected, continuing to send the second radio frequency communication module Mi、Mi+1Sending an interrogation signal; if the second radio frequency communication module Mi+2If the reply is received within the preset time, the received signal is judged to pass through the second radio frequency communication module MiReverting to the second radio frequency communication module Mi+1The response is carried out;
if the received signal passes through the second radio frequency communication module MiRecovered, indicating vehicle C1 is at a safe distance from the vehicle C2, the second radio frequency communication module MiSending the detected speed of the vehicle C2 to the second radio frequency communication module Mi+2If the vehicle C2 is running at the normal speed, no processing is performed; if the vehicle C2 is speeding, the second RF communication module Mi+2The received speed of the vehicle C2 is sent to the vehicle-mounted information monitoring device of the vehicle C1, and at the moment, the vehicle-mounted information monitoring device of the vehicle C1 reminds the driver of the fact that the rear vehicle runs at an overspeed;
if the received signal passes through the second radio frequency communication module Mi+1Reverting, the vehicle C1 is less than the safe distance from the vehicle C2, then the second RF communication module Mi+1Sending the detected speed and lane information of the vehicle C2 to the second radio frequency communication module Mi+2Then the second radio frequency communication module Mi+2The received vehicle speed and lane information of the vehicle C2 is sent to a vehicle-mounted information monitoring device of the vehicle C1, and at the moment, the vehicle-mounted information monitoring device of the vehicle C1 reminds a driver of paying attention to a rear vehicle or reminding the driver of changing lanes in time;
the current second radio frequency communication module Mi+2Second radio frequency communication module M towards the fronti+3、Mi+4Sends out an interrogation signal and waits for a second radio frequency communication module Mi+3、Mi+4Replying;
wherein, the method further comprises presetting a time threshold value, if the second radio frequency communication module Mi+2Receiving no reply within a preset time, which indicates that the second radio frequency communication module M isi+3、Mi+4If no running vehicle is detected, continuing to send the second radio frequency communication module Mi+3、Mi+4Sending an interrogation signal; if the second radio frequency communication module Mi+2If the reply is received within the preset time, the received signal is judged to pass through the second radio frequency communication module Mi+3Reverting to the second radio frequency communication module Mi+4The response is carried out;
if the received signal passes through the second radio frequency communication module Mi+4Reverting, indicating that the vehicle C1 is at a safe distance from the vehicle C3, the second RF communication module Mi+4Sending the detected vehicle speed of the vehicle C3 to the secondTwo radio frequency communication module Mi+2If the vehicle C3 is running at the normal speed, no processing is performed; if the vehicle C3 is running at a low speed, the second RF communication module Mi+2The received speed of the vehicle C3 is sent to the vehicle-mounted information monitoring device of the vehicle C1, and at the moment, the vehicle-mounted information monitoring device of the vehicle C1 reminds the driver of paying attention to the low-speed running of the front vehicle;
if the received signal passes through the second radio frequency communication module Mi+3Reverting, the vehicle C1 is less than the safe distance from the vehicle C3, then the second RF communication module Mi+3Sending the detected speed and lane information of the vehicle C3 to the second radio frequency communication module Mi+2Then the second radio frequency communication module Mi+2And the received vehicle speed and lane information of the vehicle C3 is sent to the vehicle-mounted information monitoring device of the vehicle C1, and at the moment, the vehicle-mounted information monitoring device of the vehicle C1 reminds the driver of paying attention to the front vehicle or reminding the driver of changing lanes in time.
2. The on-board information monitoring device for the expressway of claim 1, wherein the received wireless signal includes lane information, a highest speed value of a current section of road, and a lowest speed value of the current section of road.
3. The vehicle-mounted information monitoring device suitable for the expressway of claim 2, wherein the processing module processes the received wireless signal and the acquired real-time speed of the vehicle running according to a received maximum speed value and a received minimum speed value of a current road section to judge the real-time speed of the vehicle running; if the speed is higher than the highest speed value of the current road section, overspeed driving is performed; if the speed is lower than the lowest speed value of the current road section, the vehicle runs at a low speed; and if the speed is between the highest speed value and the lowest speed value of the current road section, the vehicle is normally driven.
4. The vehicle-mounted information monitoring device suitable for the expressway of claim 3, wherein the prompt module comprises a voice prompt, a vibration prompt and a light prompt.
5. The vehicle-mounted information monitoring device suitable for the expressway of claim 4, wherein if the current vehicle speed is overspeed driving or the current vehicle speed is low speed driving, the prompt is performed through one or more of sound, vibration and light; and if the current vehicle speed is normal driving, no prompt is given.
6. The vehicle-mounted information monitoring device suitable for the expressway of claim 5, further comprising a display module;
the display module is used for displaying the lane information of the current vehicle, the highest speed value of the current road section and the lowest speed value of the current road section.
7. A warning method of a vehicle-mounted information monitoring device based on a highway is characterized in that the warning method is realized based on the vehicle-mounted information monitoring device suitable for the highway according to any one of claims 1 to 6.
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| CN110533915B (en) * | 2019-09-23 | 2021-01-22 | 浙江科技学院 | Intelligent monitoring method and system for preventing traffic jam on expressway |
| CN110533914B (en) * | 2019-09-23 | 2021-06-01 | 浙江科技学院 | Automatic monitoring control system and method for highway road conditions |
| CN111274839A (en) * | 2020-03-23 | 2020-06-12 | 杭州赛鲁班网络科技有限公司 | Race system and method based on far-field radio frequency technology |
| CN113409616A (en) * | 2021-06-18 | 2021-09-17 | 郑州市交通规划勘察设计研究院 | Intelligent safety early warning equipment for highway and safety management system thereof |
| CN113593257A (en) * | 2021-07-19 | 2021-11-02 | 山东仁智信息工程有限公司 | Speed limiting method for vehicles on highway |
| CN114005285B (en) * | 2021-10-21 | 2023-02-28 | 淮阴工学院 | Video detection-based vehicle speed abnormity detection and vehicle speed abnormity early warning method |
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