CN114285440B - Application method of power carrier communication in intelligent driving safety induction system - Google Patents
Application method of power carrier communication in intelligent driving safety induction system Download PDFInfo
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Abstract
The invention provides an application method of power carrier communication in an intelligent driving safety induction system, and relates to the technical field of power carrier communication application. The application method comprises the following steps: the fog lamp hosts are arranged at intervals on a road section where a driving safety induction system is required to be arranged and connected to a 220V power line, the 220V power line is also connected with an area control host and a visibility meter which are arranged at proper positions, and the area control host is connected with a Linux server system platform. Through 220V power line carrying communication path, reduced construction cost, obtain safe speed interval value through visibility meter, regional control host computer and Linux server system platform, and then power line PLC modem module gives fog lamp child machine with above-mentioned information transfer to the driver can be according to light colour and scintillation frequency adjustment car speed, and the targeted safety of every car is induced and is made this safety induction system more intelligent, accurate.
Description
Technical Field
The invention relates to the technical field of power carrier communication application, in particular to an application method of power carrier communication in an intelligent driving safety induction system.
Background
The power carrier communication, namely the PLC, is short for English Power line Communication, is a special communication mode of a power system, is a technology for carrying out high-speed transmission on analog or digital signals by utilizing the existing power line and a carrier mode, and has the greatest characteristics that the data transmission can be carried out without re-erecting a network only by using wires, and the power carrier communication has the characteristic of being faster than the wireless communication transmission rate.
In the road safety induction system, a two-way arrangement is generally adopted, namely, equipment power supply lines and control communication lines are arranged separately, the mode causes certain inconvenience in use, particularly, in a tunnel, a mountain valley continuous curve section and a section where severe weather often occurs, 220V power supply and system communication lines are paved respectively, so that the engineering quantity is increased and the cost is multiplied, meanwhile, the safety induction system is not intelligent enough, driving safety induction cannot be carried out in a targeted manner, and the use efficiency is reduced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an application method of power carrier communication in an intelligent driving safety induction system, and solves the problems of high layout cost and low intelligent efficiency of the safety induction system.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the application method of the power line carrier communication in the intelligent driving safety induction system comprises the following steps:
s1, laying driving safety induction system
The road section of the road safety induction system is set to be a solid line lane, a plurality of fog lamp sub-machines are arranged right above each lane of the road section through a portal frame, the portal frame is positioned at one side of each fog lamp sub-machine, a display screen is arranged on each side of each portal frame and connected to a 220V power line, a license plate recognition camera is arranged on the other side of each fog lamp sub-machine and connected to the 220V power line, the 220V power line is also connected with an area control host machine and a visibility meter which are arranged at proper positions, the area control host machine 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 driving safety induction system
The visibility meter monitors the visibility information of the road and transmits the visibility information to the area control host, meanwhile, the area control host receives the information of the Linux server system platform, and can obtain the safe speed interval value of the road shape of each car with different weights under the condition of the visibility according to the data comparison in the database service, the area control host amplifies the safe speed interval value through the power amplifying circuit and couples the safe speed interval value into the 220V power line for transmission through the power carrier PLC modem module, the fog lamp sub-machine decomposes the effective communication signal in the 220V power line through the PLC modem module and transmits the decomposed and processed amplified effective communication signal to the first MCU processor, the first MCU processor controls each infrared vehicle detection module to work, and after the running car is monitored by the infrared vehicle detection module, the monitored speed information is fed back to the first MCU processor, meanwhile, each corresponding license plate recognition camera recognizes license plate information, the license plate information corresponding to the license plate is obtained through the toll gate database, and fed back to the first MCU processor, the first MCU processor controls the color and the flashing frequency of the red-yellow double-color LED lamp according to the safety speed interval value corresponding to different vehicle weights so as to display the current speed state of the vehicle, wherein the red lamp flashing represents the condition that the safety speed interval value is exceeded, the faster the flashing frequency is exceeded, the more the flashing frequency is, the yellow lamp flashing represents the condition that the flashing frequency is in the safety speed interval value, the faster and the slower the flashing frequency respectively correspond to the safety speed interval value, finally, a driver can quickly adjust the speed of the vehicle to the safety speed interval value according to the color and the flashing frequency of the red-yellow double-color LED lamp and the safety speed interval value displayed by the corresponding display screen before entering a dangerous road section, so as to pass safely, as different vehicle weights correspond to different running qualities, the system can independently limit the speed of the vehicle according to the vehicle weight information corresponding to the license plate, and the safety and the passing rate are improved.
Preferably, the fog lamp sub-machine comprises a first wave blocker, the fog lamp sub-machine is connected to a 220V power line through the first wave blocker, the first wave blocker is connected with a first signal coupler through a wire, the first signal coupler is connected with a filter through a wire, the filter is connected with a first amplifier through a wire, and the first amplifier is connected with a first MCU microprocessor through a wire.
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 area control host comprises a second wave blocker, the second wave blocker is connected to a 220V power line, the second wave blocker is connected with a second signal coupler through a wire, the second signal coupler is connected with a second amplifier through a wire, and the second amplifier is connected with a second MCU microprocessor through a wire.
Preferably, the area 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 area control host communicates 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.
Preferably, the regional control host collects visibility information of the visibility meter through RS-232.
(III) beneficial effects
The invention provides an application method of power line carrier communication in an intelligent driving safety induction system. The beneficial effects are as follows:
1. according to the invention, the control communication channels of the regional control main machine and the fog lamp sub-machine are carried on the 220V power line, so that the conventional process of respectively paving 220V power supply and system communication lines is omitted, the engineering quantity of the road safety induction system is greatly reduced, the layout use cost is reduced, and in addition, the power carrier communication has the characteristic of being faster than the wireless communication transmission rate.
2. According to the invention, the visibility information of a road is monitored through a visibility meter, the data in the database service of a regional control host and a Linux server system platform are compared, so that under the visibility condition, the automobile can safely pass through the safe speed interval value of the road shape of the road section, the information is further transmitted to a fog lamp sub-machine through a power carrier PLC (programmable logic controller) modem module, after the speed information of the automobile is monitored by an infrared automobile detection module, the current speed state of the automobile is displayed by utilizing the color and the flickering frequency of a red-yellow double-color LED lamp, and then a driver can quickly adjust the speed of the automobile to the safe speed interval value before entering a dangerous road section according to the color and the flickering frequency, so that the automobile can safely pass through, and the targeted safety induction of each automobile enables the safety induction system to be more intelligent, accurate and reliable.
Drawings
FIG. 1 is a schematic diagram of the framework of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1, the embodiment of the invention provides an application method of power carrier communication in an intelligent driving safety induction system, which comprises the following steps:
s1, laying driving safety induction system
The road section of the traffic safety induction system is set to be a solid line lane, the solid line lane can limit the random lane change of vehicles, the accident occurrence probability is reduced, meanwhile, vehicles running on the same lane are stabilized, the accuracy of vehicle identification is convenient to achieve by the system, a plurality of fog light sub-machines 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, a display screen is arranged on one side of each fog light sub-machine and connected to a 220V power line, a license plate identification camera is arranged on the other side of each fog light sub-machine and connected to the 220V power line, an area control host and a visibility meter which are arranged at proper positions are also connected to the 220V power line, a Linux server system platform can acquire vehicle weight information corresponding to each license plate from a toll station database, and can also acquire vehicle information from the traffic safety induction system by a traffic police unit if necessary so as to maintain traffic safety, and more support force can be provided for subsequent construction and safety design of roads according to the data recorded by the regional induction system database;
s2, application of driving safety induction system
The visibility meter monitors the visibility information of the road and transmits the visibility information to the area control host, meanwhile, the area control host receives the information of the Linux server system platform, according to the data comparison in the database service, the safe speed interval value of the road shape of each car with different car weights can be obtained, the area control host amplifies the safe speed interval value through the power amplifying circuit and couples the power carrier PLC modem module into the 220V power line for transmission, the fog lamp sub-machine decomposes the effective communication signal in the 220V power line through the PLC modem module and transmits the decomposed and processed amplified signal to the first MCU processor, the first MCU processor controls each infrared vehicle detection module to work, after the running-in car is monitored by the infrared vehicle detection module, the monitored speed information is fed back to the first MCU processor, meanwhile, each corresponding license plate recognition camera recognizes license plate information, the license plate information corresponding to the license plate is obtained through the toll gate database, and fed back to the first MCU processor, the first MCU processor controls the color and the flashing frequency of the red-yellow double-color LED lamp according to the safety speed interval value corresponding to different vehicle weights so as to display the current speed state of the vehicle, wherein the red lamp flashing represents the condition that the safety speed interval value is exceeded, the faster the flashing frequency is exceeded, the more the flashing frequency is, the yellow lamp flashing represents the condition that the flashing frequency is in the safety speed interval value, the faster and the slower the flashing frequency respectively correspond to the safety speed interval value, finally, a driver can quickly adjust the speed of the vehicle to the safety speed interval value according to the color and the flashing frequency of the red-yellow double-color LED lamp and the safety speed interval value displayed by the corresponding display screen before entering a dangerous road section, so as to pass safely, as different vehicle weights correspond to different running qualities, the system can independently limit the speed of the vehicle according to the vehicle weight information corresponding to the license plate, and the safety and the passing rate are improved.
The fog lamp sub-machine comprises a first wave-blocking device which is connected with a 220V power line through the first wave-blocking device, the wave-blocking device is an indispensable high-frequency communication element for carrier communication and high-frequency protection, the wave-blocking device prevents high-frequency current from leaking to other branches and plays a role in reducing high-frequency energy loss, the first wave-blocking device is connected with a first signal coupler through a wire, the first signal coupler is connected with a filter through a wire, the filter is a frequency selecting device, specific frequency components in signals can pass through and other frequency components can be greatly attenuated, interference noise can be filtered or spectrum analysis can be carried out by utilizing the frequency selecting function of the filter, the filter is connected with the first amplifier through a wire, the amplifier is a device for increasing signal amplitude or power, the first amplifier is connected with the first MCU microprocessor through a wire, the Micro Control Unit (MCU), also called a single chip microcomputer (Single Chip Microcomputer) or a single chip microcomputer, properly reduces the frequency and the specification of the CPU, and integrates the internal memory, a counter, USB, AD conversion, UART, PLC and other peripheral interfaces, even LCD driving circuits on a single chip to form a chip-level computer, and different combination control is performed for different application occasions, such as mobile phones, PC periphery, remote controllers, control of stepping motors and robotic arms in the fields of automobile electronics and industry, and the like, so that the body shadow of the MCU can be seen.
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 blocker which is connected to a 220V power line, the second wave blocker is connected with a second signal coupler through a wire, the second signal coupler is connected with a second amplifier through a wire, and the second amplifier is connected with a second MCU microprocessor through a wire.
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 wire, 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.
The regional control host collects visibility information of the visibility meter through RS-232.
In this embodiment, since the fuel consumption and the fuel supplement exist after the vehicle passes through the toll station, the vehicle weight information cannot be kept consistent all the time, so that the safe speed interval value is set so as to improve the safe redundancy of the system, the second wave blocker, the second signal coupler, the second amplifier and the second MCU microprocessor form the power carrier PLC modem module at the end of the regional control host, the regional control host can receive the equipment monitoring, the remote control, the remote upgrading, the alarm service, the WEB service and the database service of the Linux server system platform, and after the regional control host acquires the visibility information of the visibility meter, the visibility information is amplified by the power amplifying circuit and coupled into the 220V power line by the power carrier PLC modem module to be transmitted, and the first wave blocker, the first signal coupler, the filter, the first amplifier and the first MCU microprocessor form the PLC modem module at the end of the fog lamp, so that the effective communication signal in the 220V power line is decomposed, and then the red-yellow double-color LED lamp can be instructed to operate.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. The application method of the power line carrier communication in the intelligent driving safety induction system is characterized in that: the method comprises the following steps:
s1, laying driving safety induction system
The road section of the road safety induction system is set to be a solid line lane, a plurality of fog lamp sub-machines are arranged right above each lane of the road section one by one through a portal frame, the portal frame is positioned at one side of each fog lamp sub-machine 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 sub-machine 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 an area control host machine and a visibility meter which are arranged at proper positions, the area control host machine 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 driving safety induction system
The visibility meter monitors the visibility information of the road and transmits the visibility information to the area control host, meanwhile, the area control host receives the information of the Linux server system platform, and can obtain the safe speed interval value of the road shape of each car with different weights under the condition of the visibility according to the data comparison in the database service, the area control host amplifies the safe speed interval value through the power amplifying circuit and couples the safe speed interval value into the 220V power line for transmission through the power carrier PLC modem module, the fog lamp sub-machine decomposes the effective communication signal in the 220V power line through the PLC modem module and transmits the decomposed and processed amplified effective communication signal to the first MCU processor, the first MCU processor controls each infrared vehicle detection module to work, and after the running car is monitored by the infrared vehicle detection module, the monitored speed information is fed back to the first MCU processor, meanwhile, each corresponding license plate recognition camera recognizes the license plate information, the weight information of the corresponding vehicle of the license plate is obtained through the toll gate database and fed back to the first MCU processor, the first MCU processor controls the color and the flashing frequency of the red-yellow double-color LED lamp according to the safety speed interval value corresponding to different weights of the vehicle, so as to display the current speed state of the vehicle, wherein the red light flashing represents the condition that the safety speed interval value is exceeded, the faster the flashing frequency is exceeded, the more the flashing frequency is, the yellow light flashing represents the condition that the flashing frequency is in the safety speed interval value, the flashing frequency is respectively corresponding to the safety speed interval value, the final driver can quickly adjust the speed of the vehicle to the safety speed interval value according to the color and the flashing frequency of the red-yellow double-color LED lamp and the safety speed interval value displayed by the corresponding display screen before entering a dangerous road section, so as to pass safely, as different vehicle weights correspond to different running qualities, the system can independently limit the speed of the vehicle according to the vehicle weight information corresponding to the license plate, and the safety and the passing rate are improved.
2. The application method of the power carrier communication in the intelligent driving safety induction system according to claim 1, wherein the application method is characterized in that: the fog lamp sub-machine comprises a first wave blocker, the fog lamp sub-machine is connected to a 220V power line through the first wave blocker, the first wave blocker is connected with a first signal coupler through a wire, the first signal coupler is connected with a filter through a wire, the filter is connected with a first amplifier through a wire, and the first amplifier is connected with a first MCU microprocessor through a wire.
3. The application method of the power carrier communication in the intelligent driving safety induction system according to claim 2, wherein the application method is 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 induction system according to claim 1, wherein the application method is characterized in that: the regional control host comprises a second wave blocker, the regional control host is connected to a 220V power line through the second wave blocker, the second wave blocker is connected with a second signal coupler through a wire, the second signal coupler is connected with a second amplifier through a wire, and the second amplifier is connected with a second MCU microprocessor through a wire.
5. The application method of the power carrier communication in the intelligent driving safety induction system according to claim 4, wherein the application method is characterized in that: the area control host also comprises a 4G CAT.1 communication module, the 4GCAT.1 communication module is connected with the second MCU microprocessor through a wire, the area 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 the power carrier communication in the intelligent driving safety induction system according to claim 5, wherein the application method is characterized in that: and the regional control host acquires visibility information of the visibility meter through RS-232.
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