CN114285440A - Application method of power line carrier communication in intelligent driving safety guidance system - Google Patents

Application method of power line carrier communication in intelligent driving safety guidance system Download PDF

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Publication number
CN114285440A
CN114285440A CN202111619430.8A CN202111619430A CN114285440A CN 114285440 A CN114285440 A CN 114285440A CN 202111619430 A CN202111619430 A CN 202111619430A CN 114285440 A CN114285440 A CN 114285440A
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power line
control host
guidance system
application method
driving safety
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CN114285440B (en
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赵继海
张勇太
任春雁
邓英丽
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Shandong Zhongwang Zhongxin Digital Technology Co ltd
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Abstract

The invention provides an application method of power line carrier communication in an intelligent driving safety guidance system, and relates to the technical field of power line carrier communication application. The application method comprises the following steps: the fog lamp host machines are arranged on a road section where a driving safety guidance system needs to be arranged at intervals and connected to a 220V power line, the 220V power line is further connected with a regional control host machine and a visibility meter which are arranged at proper positions, and the regional control host machine is connected with a Linux server system platform. The safety induction system has the advantages that a communication channel is carried by a 220V power line, construction cost is reduced, a safe speed interval value is obtained through the visibility meter, the area control host and the Linux server system platform, and then the power carrier PLC modulation and demodulation module transmits the information to the fog lamp submachine, so that a driver can adjust the speed of the automobile according to the color and the flicker frequency of light, and the safety induction system is more intelligent and accurate due to the specific safety induction of each automobile.

Description

Application method of power line carrier communication in intelligent driving safety guidance system
Technical Field
The invention relates to the technical field of power line carrier communication application, in particular to an application method of power line carrier communication in an intelligent driving safety guidance system.
Background
The Power Line Communication (PLC), which is abbreviated as english Power line Communication, is a Communication mode specific to a Power system, and is a technology for performing high-speed transmission of analog or digital signals in a carrier mode by using an existing Power line.
In the road safety induction system, a double-circuit arrangement is usually adopted, namely an equipment power supply circuit and a control communication circuit are separately arranged, the mode causes certain inconvenience in use, particularly in continuous curve road sections of tunnels and valley areas and road sections with severe weather, the increase of engineering quantity and the multiplication of cost can be caused by respectively laying 220V power supply and system communication circuits, meanwhile, the safety induction system is not intelligent enough, the driving safety induction cannot be performed in a targeted manner, and the use efficiency is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an application method of power line carrier communication in an intelligent driving safety guidance system, and solves the problems of high laying cost of the safety guidance system and low intelligentization efficiency.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the application method of the power line carrier communication in the intelligent driving safety guidance system comprises the following steps:
s1, arranging a driving safety guidance system
The road section on which the driving safety inducing system is arranged is set as a solid line lane, the fog lamp submachine is arranged right above each lane of the road section through a portal frame, the height of the portal frame meets the normal passing condition of various vehicles, the portal frame is provided with a display screen at one side of each fog lamp submachine and is connected to a 220V power line, the other side of each fog lamp submachine at the portal frame is provided with a license plate recognition camera and is connected to the 220V power line, the 220V power line is also connected with a region control host and an visibility meter which are arranged at proper positions, the region control host is connected with a Linux server system platform, and the Linux server system platform can acquire the vehicle weight information corresponding to each license plate from a toll station database;
s2 application of traffic safety guidance system
The visibility meter monitors visibility information of a road and transmits the visibility information to the regional control host, the regional control host receives information of a Linux server system platform, and can obtain safe speed interval values of road shapes of various vehicles with different weights under the visibility condition by comparing data in a database service, the regional control host amplifies the safe speed interval values through a power amplification circuit and couples the amplified safe speed interval values into a 220V power line through a power carrier PLC modulation and demodulation module for transmission, the fog lamp submachine decomposes effective communication signals in the 220V power line through the PLC modulation and demodulation module, processes and amplifies the effective communication signals and transmits the effective communication signals to an internal first MCU processor, the first MCU processor controls various infrared vehicle detection modules to work, and after the infrared vehicle detection module monitors oncoming vehicles, the monitored speed information is fed back to the first MCU processor, meanwhile, the license plate information is recognized by each corresponding license plate recognition camera, the vehicle weight information of a vehicle corresponding to the license plate is known through a toll station database, and the license plate information is fed back to the first MCU processor, the first MCU processor controls the color and the flicker frequency of the red-yellow two-color LED lamp according to which safe speed interval value different vehicle weights correspond to so as to display the current speed state of the vehicle, wherein the red lamp flicker represents that the safe speed interval value is exceeded, the more the flicker frequency is increased, the yellow lamp flicker represents that the yellow lamp flicker is in the safe speed interval value, the high and low flicker frequencies respectively correspond to the high and low values of the safe speed interval value, and finally, a driver can quickly adjust the speed of the vehicle to the safe speed interval value before entering a dangerous road section according to the color and the flicker frequency of the red-yellow two-color LED lamp and the safe speed interval value displayed by the corresponding display screen, the system can be used for carrying out targeted speed limitation on the vehicle independently according to the vehicle weight information corresponding to the license plate, so that the vehicle can pass safely, and the safety and the passing rate are improved.
Preferably, the fog lamp submachine comprises a first wave trap, the fog lamp submachine is connected to a 220V power line through the first wave trap, the first wave trap is connected with a first signal coupler through a lead, the first signal coupler is connected with a filter through a lead, the filter is connected with a first amplifier through a lead, and the first amplifier is connected with a first MCU microprocessor through a lead.
Preferably, the first MCU microprocessor is connected with the red-yellow double-color LED lamp through a wire, and the first MCU microprocessor is connected with the infrared vehicle detection module through a wire.
Preferably, the regional control host comprises a second wave trap, the second wave trap is connected to a 220V power line, the second wave trap is connected with a second signal coupler through a lead, the second signal coupler is connected with a second amplifier through a lead, and the second amplifier is connected with a second MCU microprocessor through a lead.
Preferably, the regional control host further comprises a 4G cat.1 communication module, the 4G cat.1 communication module is connected with the second MCU microprocessor through a wire, the regional control host communicates with the Linux server system platform through the 4G cat.1 communication module, and the Linux server system platform has functions of device monitoring, remote control, remote upgrade, alarm service, WEB service, and database service.
Preferably, the regional control host collects visibility information of the visibility meter through RS-232.
(III) advantageous effects
The invention provides an application method of power line carrier communication in an intelligent driving safety guidance system. The method has the following beneficial effects:
1. according to the invention, the control communication channel of the regional control host and the fog lamp submachine is carried on the 220V power line, so that the conventional processes of respectively laying 220V power supply and system communication lines are omitted, the engineering quantity of a road safety induction system is greatly reduced, the laying and using cost is reduced, and the power carrier communication has the characteristic of higher transmission rate than wireless communication.
2. The visibility information of a road is monitored by an visibility meter, the safety speed interval value of the road shape of the road section can be safely passed by an automobile under the visibility condition through data comparison in a database service of a regional control host and a Linux server system platform, the information is transmitted to a fog lamp submachine through a power carrier PLC modulation and demodulation module, the current speed state of the automobile is displayed by utilizing the color and the flicker frequency of a red-yellow double-color LED lamp after the automobile speed information is monitored by an infrared automobile detection module, and a driver can quickly adjust the speed of the automobile to be within the safety speed interval value before entering the dangerous road section according to the color and the flicker frequency so as to safely pass, and the safety induction system is more intelligent, accurate and reliable due to the specific safety induction of each automobile.
Drawings
FIG. 1 is a schematic representation of the architecture of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides an application method of power carrier communication in an intelligent driving safety guidance system, including the following steps:
s1, arranging a driving safety guidance system
The road section provided with the driving safety guidance system is provided with a solid line lane which can limit the random lane change of vehicles and reduce the accident occurrence rate, and vehicles running on the same lane are stabilized, so that the system can improve the accuracy of vehicle identification, a plurality of fog lamp submachine are arranged right above each lane of the road section through a portal frame, the height of the portal frame meets the normal passing of various vehicles, one side of each fog lamp submachine of the portal frame is provided with a display screen and connected to a 220V power line, the other side of each fog lamp submachine of the portal frame is provided with a license plate identification camera and connected to the 220V power line, the 220V power line is also connected with a region control host and a visibility meter which are arranged at proper positions, the region control host is connected with a Linux server system platform, and the Linux server system platform can obtain the vehicle weight information corresponding to each license plate from a toll station database, if necessary, the traffic police can also obtain vehicle information from the driving safety guidance system so as to maintain driving safety, and more powerful support can be provided for subsequent road construction and road safety design according to data recorded by the guidance system database;
s2 application of traffic safety guidance system
The visibility meter monitors visibility information of a road and transmits the visibility information to the regional control host, the regional control host receives information of a Linux server system platform, and according to data comparison in a database service, safety speed interval values of road shapes of all vehicles with different weights can be safely passed through under the visibility condition can be obtained, the regional control host amplifies the safety speed interval values through a power amplification circuit and couples the safety speed interval values into a 220V power line through a power carrier PLC modulation and demodulation module for transmission, a fog lamp submachine decomposes effective communication signals in the 220V power line through the PLC modulation and demodulation module, processes and amplifies the effective communication signals and transmits the effective communication signals to an internal first MCU processor, the first MCU processor controls all infrared vehicle detection modules to work, and after the infrared vehicle detection modules monitor oncoming vehicles, the monitored speed information is fed back to the first MCU processor, meanwhile, each corresponding license plate recognition camera recognizes license plate information, and learns the vehicle weight information of the corresponding vehicle of the license plate through a toll station database, and feeds the license plate information back to the first MCU processor, the first MCU processor controls the color and the flicker frequency of the red-yellow double-color LED lamp according to which safe speed interval value different vehicle weights are corresponding to so as to display the current speed state of the vehicle, wherein the red light flicker represents that the safe speed interval value is exceeded, the more the flicker frequency is increased, the yellow light flicker represents that the red-yellow double-color LED lamp is in the safe speed interval value, the high and low flicker frequencies respectively correspond to the high and low values of the safe speed interval value, finally, a driver can quickly adjust the speed of the vehicle to the safe speed interval value before entering a dangerous road section according to the color and the flicker frequency of the red-yellow double-color LED lamp and the safe speed interval value displayed by the corresponding display screen so as to safely pass through the different vehicle weights corresponding to different driving qualities, according to the vehicle weight information corresponding to the license plate, the system can independently carry out targeted speed limitation on the vehicle, and the safety and the passing rate are improved.
The fog lamp submachine comprises a first wave trap, the fog lamp submachine is connected on a 220V power line through the first wave trap, the wave trap is an indispensable high-frequency communication element for carrier communication and high-frequency protection, the wave trap prevents high-frequency current from leaking to other branches and plays a role in reducing high-frequency energy loss, the first wave trap is connected with a first signal coupler through a lead, the first signal coupler is connected with a filter through a lead, the filter is a frequency selection device and can enable specific frequency components in signals to pass through and greatly attenuate other frequency components, the frequency selection function of the filter is utilized to filter interference noise or perform spectrum analysis, the filter is connected with a first amplifier through a lead, the amplifier is a device for increasing signal amplitude or power, the first amplifier is connected with a first MCU (microprogrammed control unit) through a lead, and the MCU (also known as a Single Chip Microcomputer) or a Single Chip Microcomputer, the frequency and specification of the CPU are properly reduced, and peripheral interfaces such as a memory, a counter, a USB, an AD conversion, a UART, a PLC and the like, even an LCD driving circuit are integrated on a single chip to form a chip-level computer, and the MCU can be seen in the figure of the MCU for different combined control of different application occasions, such as mobile phones, PC peripheries, remote controllers, automobile electronics, industrial stepping motors, robot arm control and the like.
The first MCU microprocessor is connected with the red-yellow double-color LED lamp through a wire, and the first MCU microprocessor is connected with the infrared vehicle detection module through a wire.
The regional control host comprises a second wave trapper which is connected to a 220V power line, the second wave trapper is connected with a second signal coupler through a lead, the second signal coupler is connected with a second amplifier through a lead, and the second amplifier is connected with a second MCU microprocessor through a lead.
The regional control host also comprises a 4G CAT.1 communication module, the 4G CAT.1 communication module is connected with the second MCU microprocessor through a lead, the regional control host is communicated with a Linux server system platform through the 4G CAT.1 communication module, and the Linux server system platform has the functions of equipment monitoring, remote control, remote upgrading, alarm service, WEB service and database service.
And the regional control host acquires visibility information of the visibility meter through the RS-232.
In the embodiment, since the vehicle has oil consumption and supplement after passing through the toll station, the vehicle weight information can not be always kept consistent, so that a safe speed interval value is set so as to improve the safety redundancy of the system, the second wave trap, the second signal coupler, the second amplifier and the second MCU microprocessor form a power carrier PLC modulation and demodulation module at a region control host, the region control host can receive equipment monitoring, remote control, remote upgrading, alarm service, WEB service and database service of a Linux server system platform, the region control host amplifies through a power amplification circuit and couples into a 220V power line for transmission through the power carrier PLC modulation and demodulation module after collecting visibility information of an visibility meter, the first wave trap, the first signal coupler, the filter, the first amplifier and the first MCU microprocessor form a PLC modulation and demodulation module at a fog lamp sub-end, after the effective communication signal in the 220V power line is decomposed, the red and yellow double-color LED lamp can be instructed to work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Application method of power line carrier communication in intelligent driving safety guidance system, its characterized in that: the method comprises the following steps:
s1, arranging a driving safety guidance system
The road section on which the driving safety guidance system is arranged is set as a solid line lane, a plurality of fog lamp submachine are arranged right above each lane of the road section one by one through a portal frame, the height of the portal frame meets the requirement that various vehicles normally pass, the portal frame is positioned at one side of each fog lamp submachine and is respectively provided with a display screen and connected to a 220V power line, the portal frame is positioned at the other side of each fog lamp submachine and is respectively provided with a license plate recognition camera and connected to the 220V power line, the 220V power line is also connected with a region control host and an visibility meter which are arranged at proper positions, the region control host is connected with a Linux server system platform, and the Linux server system platform can acquire vehicle weight information corresponding to each license plate from a toll station database;
s2 application of traffic safety guidance system
The visibility meter monitors visibility information of a road and transmits the visibility information to the regional control host, the regional control host receives information of a Linux server system platform, and can obtain safe speed interval values of road shapes of various vehicles with different weights under the visibility condition by comparing data in a database service, the regional control host amplifies the safe speed interval values through a power amplification circuit and couples the amplified safe speed interval values into a 220V power line through a power carrier PLC modulation and demodulation module for transmission, the fog lamp submachine decomposes effective communication signals in the 220V power line through the PLC modulation and demodulation module, processes and amplifies the effective communication signals and transmits the effective communication signals to an internal first MCU processor, the first MCU processor controls various infrared vehicle detection modules to work, and after the infrared vehicle detection module monitors oncoming vehicles, the monitored speed information is fed back to the first MCU processor, meanwhile, each corresponding license plate identification camera identifies the license plate information, the vehicle weight information of a vehicle corresponding to the license plate is obtained through a toll station database, and the license plate information is fed back to the first MCU processor, the first MCU processor controls the color and the flicker frequency of the red-yellow double-color LED lamp according to which safe speed interval value different vehicle weights correspond to so as to display the current speed state of the vehicle, wherein the red lamp flicker represents that the safe speed interval value is exceeded, the more the flicker frequency is increased or exceeded, the yellow lamp flicker represents that the red lamp flicker is in the safe speed interval value, the high and low flicker frequencies respectively correspond to the high and low values of the safe speed interval value, and finally, a driver can quickly adjust the speed of the vehicle to be in the safe speed interval value before entering a dangerous road section according to the color and flicker frequency of the red-yellow double-color LED lamp and the safe speed interval value displayed by the corresponding display screen, the system can be used for carrying out targeted speed limitation on the vehicle independently according to the vehicle weight information corresponding to the license plate, so that the vehicle can pass safely, and the safety and the passing rate are improved.
2. The application method of the power carrier communication in the intelligent driving safety guidance system according to claim 1, characterized in that: the fog lamp submachine comprises a first wave trap, the fog lamp submachine is connected to a 220V power line through the first wave trap, the first wave trap is connected with a first signal coupler through a lead, the first signal coupler is connected with a filter through a lead, the filter is connected with a first amplifier through a lead, and the first amplifier is connected with a first MCU (microprogrammed control unit) microprocessor through a lead.
3. The application method of the power carrier communication in the intelligent driving safety guidance system according to claim 2, characterized in that: the first MCU microprocessor is connected with the red-yellow double-color LED lamp through a wire, and the first MCU microprocessor is connected with the infrared vehicle detection module through a wire.
4. The application method of the power carrier communication in the intelligent driving safety guidance system according to claim 1, characterized in that: the regional control host comprises a second wave trap, the regional control host is connected to a 220V power line through the second wave trap, the second wave trap is connected with a second signal coupler through a lead, the second signal coupler is connected with a second amplifier through a lead, and the second amplifier is connected with a second MCU microprocessor through a lead.
5. The application method of power carrier communication in the intelligent driving safety guidance system according to claim 4, wherein the application method comprises the following steps: the regional control host further comprises a 4G CAT.1 communication module, the 4G CAT.1 communication module is connected with the second MCU microprocessor through a lead, the regional control host is communicated with a Linux server system platform through the 4G CAT.1 communication module, and the Linux server system platform has the functions of equipment monitoring, remote control, remote upgrading, alarm service, WEB service and database service.
6. The application method of power carrier communication in the intelligent driving safety guidance system according to claim 5, wherein the application method comprises the following steps: and the regional control host acquires visibility information of the visibility meter through RS-232.
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