CN111882902B - Voice broadcasting system for intelligent traffic - Google Patents
Voice broadcasting system for intelligent traffic Download PDFInfo
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- CN111882902B CN111882902B CN202010708732.1A CN202010708732A CN111882902B CN 111882902 B CN111882902 B CN 111882902B CN 202010708732 A CN202010708732 A CN 202010708732A CN 111882902 B CN111882902 B CN 111882902B
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- traffic light
- control information
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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
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
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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
- G08G1/095—Traffic lights
Abstract
The invention discloses a voice broadcasting system for intelligent traffic, belonging to the technical field of artificial intelligence, traffic light equipment is connected to a server through a network, the server sends real-time traffic light control information data to a vehicle-mounted voice broadcasting device entering a circular signal area, the vehicle-mounted voice broadcasting device converts the received traffic light control information data and then displays or voice broadcasts the data, optimizes and selects an optimal driving route according to the traffic light control information, links the traffic light equipment to the Internet by utilizing the mode with the minimum reconstruction cost and the simplest reconstruction cost, each traffic light can form a signal area, when a vehicle drives into the area, the traffic light can continuously send data information to a vehicle-mounted traffic light real-time voice broadcasting system carried by the vehicle, and the vehicle-mounted traffic light real-time voice broadcasting system can rapidly analyze the data information, into a signal that is easily understandable to the driver.
Description
Technical Field
The invention relates to the technical field of artificial intelligence, in particular to a voice broadcasting system for intelligent traffic.
Background
In the driving process of a vehicle owner, a traffic light is a very key constraint, so that the color blind people cannot take a driving license to drive to get on the road like common people; meanwhile, some unintended illegal driving problems such as running a red light and the like are caused due to improper identification of the traffic light.
In the prior art, Chinese patent201811525636The traffic light for the color blindness comprises a support column, a traffic light device for the color blindness and a display device, wherein the traffic light device for the color blindness is arranged on the support column and comprises a transverse plate, a red light, a yellow light and a green light; the display device comprises a shell, a main control circuit board, a power supply module and a display module, wherein the shell is provided with the display module, the display module is internally provided with an image conversion module, and the shell is internally provided with the main control circuit boardAnd a power supply module is arranged on one side of the main control circuit board, the main control circuit board is in signal connection with the display module, and the power supply module is electrically connected with the main control circuit board, the display module and the achromatopsia traffic light device. The external structure of equipment such as a traffic light is changed, or information which can be identified by the color blind people is added to convey the information of the traffic light, and the mode is greatly influenced by external factors, is not very reliable, and has high transformation cost.
Disclosure of Invention
The invention provides a voice broadcasting system for intelligent traffic, which links traffic light equipment to the Internet by using the mode with the minimum modification cost and the simplest modification cost, and each traffic light can form a signal area.
The specific technical scheme provided by the invention is as follows:
the invention provides a voice broadcasting system for intelligent traffic, which comprises:
the intelligent traffic light is configured to be connected to a server through a network and send current traffic light control information to the server in real time, wherein the traffic light control information comprises current traffic light color, countdown information and current time node information;
the server is configured to set a virtual circular signal area for each traffic light according to the position of each traffic light and send corresponding red road light control information to vehicles entering the circular information area, wherein the server stores the position information or accurate longitude and latitude information of each traffic light, and the circular signal area is a virtual circular area with the preset radius size taking the position of the traffic light as the center of a circle;
the vehicle-mounted voice broadcasting device is configured to receive traffic light control information sent by the server in real time, analyze the traffic light control information and display the traffic light control information or broadcast the traffic light control information in voice through the navigation terminal;
and the navigation terminal is configured to be connected with the vehicle-mounted voice broadcasting device, display the traffic light real-time image in the current driving route and optimize and select the optimal driving route according to the traffic light control information.
Optionally, the navigation terminal optimizes and selects an optimal driving route according to the traffic light control information by adopting the following algorithm:
wherein, X1, X2' Xn is the number of traffic lights on the current route, Lx1,x2Is the distance between X1 and X2 traffic lights, Sx2For the time, V, of the second traffic light of the current route from the time the green light is litavgIs the average speed of the current vehicle.
Optionally, the server is configured with a request delay analysis system, the request delay analysis system is configured to obtain a first delay between the server and the traffic light and a second delay between the server and the vehicle-mounted voice broadcasting device, and the vehicle-mounted voice broadcasting terminal analyzes the traffic light control information according to the first delay and the second delay to obtain a real-time current traffic light countdown time.
Optionally, the server is configured to send the traffic light control information to multiple vehicle-mounted voice broadcast devices simultaneously, and when the simultaneously sent data volume is greater than a preset threshold, an information middleware is used for sending and processing data.
The invention has the following beneficial effects:
the voice broadcasting system for intelligent traffic provided by the embodiment of the invention connects traffic light equipment to a server through a network, maintains the position information of the traffic light in a background system of the server, plans a circular signal area according to a signal sending area of the traffic light, uploads current color information and countdown information to the server by the traffic light in real time, sends real-time traffic light control information data to a vehicle-mounted voice broadcasting device entering the circular signal area, displays or broadcasts the received traffic light control information data in voice after conversion processing by the vehicle-mounted voice broadcasting device, optimizes and selects an optimal driving route according to the traffic light control information, links the traffic light equipment to the internet by using the mode with the minimum reconstruction cost and the simplest reconstruction cost, and each traffic light can form a signal area, when a vehicle enters the area, the traffic light can continuously send data information to a vehicle-mounted traffic light real-time voice broadcasting system carried by the vehicle, the vehicle-mounted traffic light real-time voice broadcasting system can quickly analyze the data information and convert the data information into a signal which can be easily understood by a driver, and an optimal route can be calculated according to a current route traffic light shortest waiting time algorithm.
Drawings
Fig. 1 is a schematic structural diagram of a voice broadcast system for intelligent transportation according to an embodiment of the present invention.
Detailed Description
A voice announcement system for intelligent transportation according to an embodiment of the present invention will be described in detail with reference to fig. 1.
Referring to fig. 1, a voice broadcast system for intelligent traffic provided by an embodiment of the present invention includes an intelligent traffic light 1, a server 2, a vehicle-mounted voice broadcast device 3, and a navigation terminal 4; the intelligent traffic light 1 is configured to be connected to a server through a network and send current traffic light control information to the server in real time, wherein the traffic light control information comprises current traffic light color, countdown information and current time node information; the server 2 is configured to set a virtual circular signal area for each traffic light according to the position of each traffic light and send corresponding red road light control information to vehicles entering the circular information area, wherein the server stores the position information or accurate longitude and latitude information of each traffic light, and the circular signal area is a virtual circular area with the preset radius size taking the position of the traffic light as the center of a circle; the vehicle-mounted voice broadcasting device 3 is configured to receive the traffic light control information sent by the server in real time, analyze the traffic light control information, and display the traffic light control information or broadcast the traffic light control information in voice through the navigation terminal; the navigation terminal 4 is configured to be connected with a vehicle-mounted voice broadcasting device, displays traffic light real-time images in the current driving route, and optimizes and selects the optimal driving route according to the traffic light control information.
The navigation terminal 4 may be a mobile terminal, a smart phone, or the like equipped with a navigation map, or may be a vehicle-mounted navigation system.
Further, referring to fig. 1, the navigation terminal 4 optimizes and selects an optimal driving route according to the traffic light control information by using the following algorithm:
wherein, X1, X2' Xn is the number of traffic lights on the current route, Lx1,x2Is the distance between X1 and X2 traffic lights, Sx2For the time, V, of the second traffic light of the current route from the time the green light is litavgIs the average speed of the current vehicle.
The server 2 is configured with a request delay analysis system, the request delay analysis system is configured to obtain a first delay between the server 2 and the traffic light and a second delay between the server 2 and the vehicle-mounted voice broadcasting device 3, and the vehicle-mounted voice broadcasting device 3 analyzes the traffic light control information according to the first delay and the second delay to obtain real-time current traffic light countdown time.
Specifically, in order to solve the error between the countdown of the traffic light returned by the server and the actual countdown, the delay and the like must exist in the process from the server to the system of the user of the traffic light control information, and in order to solve the problem, the lead amount can be made (the lead amount is increased according to the first delay and the second delay). For example, a request delay analysis system is configured in the server, and when the result of the analysis system shows that the delay requested by the server is 1S, the traffic light countdown requested by the user is advanced by 1S. The analysis system can always perform delay analysis in a manner of acquiring a request of a certain time period and calculating an average value of delay. In addition, from the aspect of hardware, the bandwidth of the server can be increased, the request delay is reduced, the server is deployed in a distributed mode, and the normal operation of the service is guaranteed.
Further, the server 2 is configured to send traffic light control information to the plurality of vehicle-mounted voice broadcasting devices 3 at the same time, and when the data volume sent at the same time is larger than a preset threshold value, the information middleware is adopted to send and process data.
According to the voice broadcasting system for intelligent traffic, the traffic light uploads the current information such as color, countdown and the like to the server in real time. In order to ensure the real-time performance of traffic light data, if the access amount reaches more than 10 ten thousand, the programs and the databases can be considered to be divided and deployed to a plurality of servers according to functional modules to share the access pressure. In addition, the load balance of software and hardware can be considered, the load balance of hardware can be realized directly through the intelligent switch, the processing capability is strong, and the system is irrelevant, but the practice system and the response state cannot be distinguished. The hardware load balance is suitable for a large pile of equipment, large access amount and simple application. The software load balancing is based on a system and an application, the load can be well distributed according to the conditions of the system and the application, the cost performance is high, and PCL load balancing software and LVS software under Linux can be adopted as examples.
And the server sends real-time traffic light data to vehicles entering the area. When a server sends data to many devices at the same time, message middleware can be used as a process of data sending, wherein the message middleware is suitable for a distributed environment requiring reliable data transmission. In the system adopting the message middleware mechanism, different objects activate the event of the other side by transmitting messages, and the corresponding operation is completed. The sender sends the message to the message server, and the message server stores the message in a plurality of queues and forwards the message to the receiver when appropriate. Message middleware, which is often used to mask features between various platforms and protocols, enables collaboration between applications, has the advantage of providing synchronous and asynchronous connections between clients and servers, and can deliver or store-and-forward messages at any time, which is a further reason than remote procedure calls.
The voice broadcasting system for intelligent traffic provided by the embodiment of the invention connects traffic light equipment to a server through a network, maintains the position information of the traffic light in a background system of the server, plans a circular signal area according to a signal sending area of the traffic light, uploads current color information and countdown information to the server by the traffic light in real time, sends real-time traffic light control information data to a vehicle-mounted voice broadcasting device entering the circular signal area, displays or broadcasts the received traffic light control information data in voice after conversion processing by the vehicle-mounted voice broadcasting device, optimizes and selects an optimal driving route according to the traffic light control information, links the traffic light equipment to the internet by using the mode with the minimum reconstruction cost and the simplest reconstruction cost, and each traffic light can form a signal area, when a vehicle enters the area, the traffic light can continuously send data information to a vehicle-mounted traffic light real-time voice broadcasting system carried by the vehicle, the vehicle-mounted traffic light real-time voice broadcasting system can quickly analyze the data information and convert the data information into a signal which can be easily understood by a driver, and an optimal route can be calculated according to a current route traffic light shortest waiting time algorithm.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (2)
1. A voice announcement system for intelligent transportation, characterized in that the voice announcement system comprises:
the intelligent traffic light is configured to be connected to a server through a network and send current traffic light control information to the server in real time, wherein the traffic light control information comprises current traffic light color, countdown information and current time node information;
the server is configured to set a virtual circular signal area for each traffic light according to the position of each traffic light and send corresponding red road light control information to vehicles entering the circular signal area, wherein the server stores the position information or accurate longitude and latitude information of each traffic light, and the circular signal area is a virtual circular area with the preset radius size taking the position of the traffic light as the center of a circle;
the vehicle-mounted voice broadcasting device is configured to receive traffic light control information sent by the server in real time, analyze the traffic light control information and display the traffic light control information or broadcast the traffic light control information in voice through the navigation terminal;
the navigation terminal is configured to be connected with the vehicle-mounted voice broadcasting device, displays traffic light real-time images in the current driving route, and optimizes and selects the optimal driving route according to the traffic light control information;
the navigation terminal optimizes and selects an optimal driving route according to the traffic light control information by adopting the following algorithm:
wherein, X1, X2' Xn is the number of traffic lights on the current route, Lx1,x2Is the distance between X1 and X2 traffic lights, Sx2For the time, V, of the second traffic light of the current route from the time the green light is litavgIs the average speed of the current vehicle;
the server is provided with a request delay analysis system, the request delay analysis system is configured to be used for obtaining a first delay between the server and the traffic light and a second delay between the server and the vehicle-mounted voice broadcasting device, and the vehicle-mounted voice broadcasting device analyzes the traffic light control information according to the first delay and the second delay to obtain real-time current traffic light countdown time.
2. The voice broadcasting system of claim 1, wherein the server is configured to simultaneously transmit the traffic light control information to a plurality of vehicle-mounted voice broadcasting devices, and when the amount of data transmitted simultaneously is greater than a preset threshold, the server performs data transmission processing using an information middleware.
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| CN202010708732.1A CN111882902B (en) | 2020-07-16 | 2020-07-16 | Voice broadcasting system for intelligent traffic |
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| CN202010708732.1A CN111882902B (en) | 2020-07-16 | 2020-07-16 | Voice broadcasting system for intelligent traffic |
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| CN114454894B (en) * | 2022-01-29 | 2023-06-13 | 重庆长安新能源汽车科技有限公司 | Voice broadcast control method based on service call, system and vehicle thereof |
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| CN103985267A (en) * | 2014-06-06 | 2014-08-13 | 郝明学 | System and method for synchronously displaying traffic signal lamp state of front intersection |
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