WO2016011579A1

WO2016011579A1 - Road information receiving system and receiving method

Info

Publication number: WO2016011579A1
Application number: PCT/CN2014/082627
Authority: WO
Inventors: 冯旋宇
Original assignee: 冯旋宇
Priority date: 2014-07-21
Filing date: 2014-07-21
Publication date: 2016-01-28
Also published as: CN105580061A

Abstract

Provided are a road information receiving system and a receiving method, comprising a control and directing unit, and further comprising a road information server unit and a vehicle on-board unit, the vehicle on-board unit comprising an information receiving device, a processor, a vehicle direction positioning device, and an output device. The traffic light status at an intersection is transmitted outward or sent by means of the road information server unit; the information receiving device receives the information; the vehicle direction positioning device measures and determines the vehicle movement direction; the processor selects the status of the traffic light of the matching direction from a traffic light status signal according to the direction data, and transmits by means of the output device the status to a driver as reference regarding the intersection. When a large vehicle in front blocks the view, when the weather conditions affect the view of the traffic light in front, or when a driver has color blindness or color deficiency, the driver can accurately receive image and/or voice alerts via the output device, so that the vehicle can safely and rapidly go through the intersection or stop in time according to the traffic light status.

Description

Road information receiving system and receiving method

Technical field

The invention belongs to the field of road traffic safety, and in particular relates to the technical field of road state information receiving and processing.

Background technique

When passing through a traffic light intersection, cars often encounter large vehicles in front of them, such as buses, earth-moving trucks, and large trucks, which block the sight of the follow-up vehicles, and the follow-up vehicles cannot judge the intersection ahead. The actual state of the signal light, it is easy to follow the vehicle and red light behind the big car. If the big car passes before you can see the signal light and then pass the intersection, it will inevitably cause the intersection to block, and there is also bad weather such as heavy fog or heavy rain. In the case of strong backlighting, it is easy to see the red light when the signal light is not visible. In short, it is impossible to know the status of the traffic light in the vehicle when passing the intersection, and the person who is currently suffering from color blindness or color can not become the driver, and because the signal light cannot be distinguished. In order to solve the above problems, there are several solutions in the existing patent documents, for example, the number is: 201010190885, 201020584377 The patent application publications all propose technical solutions to solve the above technical problems. However, in these technical solutions, no specific implementation schemes are disclosed for the connection manner between the traffic signal transmitting end and the receiving end contained in the vehicle. It simply describes the 'transmitting device sends the traffic light signal to the receiving device on the vehicle'. In actual use, the intersection has at least four directions of light indication. Considering the problem of signal reception, if the vehicle is traveling laterally, The longitudinal light signal and the vertical light signal are the reference for the travel, but it is easy to cause the vehicle to emit a red light. The problem of this signal confusion is not solved in the above patent documents. The key point of the problem is that it cannot be defined. The moving direction of the traveling vehicle corresponds to the signal light that needs to be directed. Therefore, the above documents cannot truly solve the technical problems existing in the prior art. In order to solve the above problem, the applicant invites professionals in the field of electronic communication and software to communicate. Exchange, after the exchange, the above The problems that everyone has proposed are as follows. 1 A transmitting device is established near the road stop line, and the transmitting direction of the transmitting device is fixedly transmitted to an incoming vehicle direction, and the signal strength of the transmitting device is utilized to enable the vehicle in the region to accurately receive the status signal of the signal light; 2 Reflect the signal light through the reflector to the angle that the vehicle can see; although the above several solutions can solve the above technical problems, but the first There are two problems in the scheme, one is the angle adjustment, and the other is the confusion of the angle in the special case of the road; the second The problem with the medium scheme is that the construction of the reflecting device can not meet the perspective of each vehicle in the direction of the incoming vehicle, and there is still a problem of dead angle; Therefore, after research and discussion by relevant technical personnel in the field, a better and lower cost solution has not been found, and the problem cannot be solved. In addition, it is necessary to add a practical problem. When the driver approaches the intersection, due to the occlusion of the vehicle, the distribution of the front guide line cannot be seen in general. That is, it is impossible to predict in advance how many left and straight lanes there are. Therefore, it is easy for the driver to enter the diversion channel and then carry out the access road across the solid line, and it is easy to cause rubbing and blockage.

technical problem

The invention provides a road information receiving system and method The invention aims to solve the problem that the state of the signal light cannot be known when the vehicle encounters the occlusion through the intersection, and the signal confusion caused by the technical solution mentioned in the prior art is likely to cause the vehicle to receive the wrong signal and the red light is generated.

Technical solution

In order to solve the above problems, the present invention provides A road information receiving system, comprising a control command unit including road information and signal state data, further comprising a road information server unit, an onboard unit, the onboard unit comprising an information receiving device, a processor, a vehicle direction positioning device and an output device ,among them:

a road information server unit, connected to the control command unit, and receiving road information and signal state data sent by the control command unit, and converting the road information and signal data into data signals for the information receiving device Receive or download and use;

The information receiving device receives or downloads a wireless signal or a data signal sent by the road information server unit by using a wireless manner or a network connection manner;

The vehicle direction locating device is connected to the processor, and transmits specific data of a moving direction of the vehicle to the processor for comparison analysis;

The processor is connected to the information receiving device, and processes the wireless signal or data signal received by the processor, and performs comparison analysis with the vehicle motion direction data measured by the vehicle direction locating device. Thereby determining the condition of the signal light corresponding to the direction of motion of the vehicle;

The output device is connected to the processor, and the processor analyzes the status of the signal light in the direction of the vehicle movement by using the voice or The output is output in the form of an image for the driver's reference.

Preferably, a signal transmitting unit is provided at the road junction or the prompting road section, the signal transmitting unit is connected with the road information server unit and receives its data signal, and wirelessly transmits the data signal, and the information receiving of the vehicle-mounted unit The device receives the above data signal for processing by the processor.

Preferably, the road information server unit data signal is a plurality of sets of signals, each set of signals serving an incoming vehicle direction, and each set of signals has at least one line direction traffic and parking signal.

Preferably, the direction of the road is divided into eight directions according to the east, south, west, north, northeast, northwest, southwest, and southeast, respectively, using the letters E, S, W, N, EN, WN, WS, ES represent the above eight directions, the traffic signal in the line direction is represented by the number 0, and the number of the parking signal is 1 Representation, each group of signals includes the direction letter and the line direction of the pass number 0 or the parking substitute number 1;

The vehicle direction locating device divides the moving direction into eight directions, and the vehicle moving direction falls into any one of the eight directions to form a set of data, and the measured vehicle moving direction data is transmitted to the processor in real time. .

Preferably, the line direction comprises a straight line, a left turn, a right turn, a U-turn, and any combination between the above directions, respectively, using the letters a, b , c , d represent the above line direction, and each set of signals includes a direction letter and a line direction letter and a pass substitute number 0 or a parking substitute number 1 , and each set of signals further includes an intersection number;

The eight directions divided by the vehicle direction locating device are at 360 Equally drawn in the direction of the direction, the east, south, west, north, northeast, northwest, southwest, southeast eight directions, each direction is divided into 45 degrees, the direction line is 22.5 degrees.

Preferably, each set of signals further includes a time information parameter, each time information parameter is a red light or a green light cutoff time, and the time information parameter is followed by a combination of a letter T and a cutoff time. Or after the parking substitute number 1, the onboard unit includes a clock unit for comparing with the time information parameter, converting to the countdown count by the processor, and outputting.

Preferably, each group of signals further includes a road information parameter, and the road information refers to a temporary front danger state or a road closure state prediction, which is set after each group of signal line direction codes.

Preferably, the vehicle direction locating device measures the direction of motion of the vehicle using an electronic compass and/or a GPS unit.

The invention additionally provides a a road information receiving method, comprising the road information receiving system described above, the road information receiving method step comprising:

Determining the road direction of the intersection and inputting the road direction information to the road information server unit;

The road information server unit transmits the road direction information and the signal light state through the network or is externally transmitted through the signal transmitting unit;

The information receiving device in the onboard unit receives the relevant signal of the state of the signal light by wireless or network;

The vehicle direction locating device determines direction data of a direction of motion of the vehicle;

The processor selects a matching direction signal state in the signal state signal according to the direction data, and transmits the state to the driver for reference to the intersection state through the output device.

Preferably, when the road direction of the intersection is measured in advance, the road direction information is represented by the letters E, S, W, N, EN, WN, WS, ES represent eight directions of east, south, west, north, northeast, northwest, southwest, and southeast, and eight directions are at 360. Equally drawn in the direction of the direction, respectively, east, south, west, north, northeast, northwest, southwest, southeast, eight directions, each direction is divided into 45 degrees, the direction line is about 22.5 Degree, when the road direction is determined as the intersection of any two adjacent direction ranges, the road direction is determined as the positive direction among the two adjacent directions;

The signal state is numbered 1 or 0 Representing parking and traffic, respectively, the direction of the line includes straight, left, right, U-turn, and any combination between the above directions, using the letters a, b, c, d Representing the above line direction, each intersection number is represented by a number or a letter. The complete set of signal forms is: intersection number + road direction information number + line direction number + Signal status number;

The eight directions divided by the vehicle direction locating device are at 360 Equally drawn in the direction of the direction, respectively, east, south, west, north, northeast, northwest, southwest, southeast, eight directions, each direction is divided into 45 degrees, the direction line is about 22.5 Degree, the vehicle direction locating device further determines the direction of movement of the vehicle by using an electronic compass while confirming the direction of movement of the vehicle by using the GPS verification driving trajectory;

When the vehicle direction locating device determines that the moving direction of the vehicle is the boundary of any two adjacent direction ranges, the moving direction is determined as the positive direction among the two adjacent directions, and the so-called positive direction is east, south, west, and north. Four directions;

Each set of signals further includes a time information parameter, each time information parameter is a red light or a green light cut-off time, and the time information parameter is represented by a letter T The combination of the cut-off time is followed by the pass-through number 0 or the parking substitute number 1 Thereafter, the onboard unit includes a clock unit for converting to a countdown countdown by the processor and outputting after being compared with the time information parameter;

The road information parameter is also included in each group of signals, and the road information refers to a temporary front danger state or a road closure state prediction, which is set after each group of signal line direction codes.

According to the above technical solution, with the road information receiving system and method provided by the present invention, the traffic light state of the road intersection is transmitted or transmitted through the road information server unit, and the onboard unit in the vehicle receives the relevant information by using the information receiving device. And the vehicle direction locating device in the vehicle unit determines direction data of the direction of movement of the vehicle, and the processor selects a matching direction signal state in the signal state signal according to the direction data, and passes the state through the output. The device transmits to the driver for the status of the reference intersection, and when the vehicle is blocked by the front, the bad weather affects the front signal, or the driver is color blind or weak, the image can be accurately obtained through the output device. / or voice prompts, so that the driver's vehicle can safely and quickly pass through the intersection or stop in time according to the state of the signal light.

DRAWINGS

1 is a system operation module diagram provided by the present invention;

Figure 2 is a schematic view of the direction provided by the present invention;

3 is a schematic diagram of Embodiment 1 of the present invention;

4 is a schematic diagram of Embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of Embodiment 3 of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1, referring to FIG. 1 and FIG. 2 and FIG. 3,

In this embodiment, a two-channel road is taken as an example. The so-called two-way means that a crosswalk 33 across the road is provided on one passage, and there is a signal light 10 The two-way passing vehicle 80 is regulated. At such intersections, usually the traffic light 10 has only a straight traffic light, and at most there will be a U-turn signal indicator. In the vicinity of the traffic light 10, this embodiment considers the vehicle stop line. The signal transmitting unit 20 is established nearby, the signal transmitting unit 20 is connected to the road information server unit 40 and receives its data signal, and the signal transmitting unit 20 sets the signal light 10 The real-time status is sent out, and the transmitted information is divided into a straight line signal group or a straight line signal group and a U-turn line signal group. In this embodiment, the latter is taken as an example. In the pre-acquired road direction direction information, the road direction information is used. letter E, S, W, N, EN, WN, WS, ES represent eight directions of east, south, west, north, northeast, northwest, southwest, and southeast, and eight directions are at 360. Equally drawn in the direction of the direction, respectively, east, south, west, north, northeast, northwest, southwest, southeast, eight directions, each direction is divided into 45 degrees, the direction line is about 22.5 Degree, when the road direction is determined as the boundary between any two adjacent direction ranges, the road direction is determined as the positive direction among the two adjacent directions. In this embodiment, the road direction is set to the northeast and southwest directions, and is required here. Letters EN and WS Representative, of course, these letters represent other letters or numbers that can be easily transmitted and are not limited to the above setting. The signal state is numbered 1 or 0 Representing parking and traffic, respectively, the direction of the line includes straight, left, right, U-turn, and any combination between the above directions, using the letters a, b, c, d Representing the above line direction, each intersection number is represented by a number or a letter. In this embodiment, the road intersection number is 51. There are two purposes for setting the intersection number. One purpose is to avoid the confusion of the received signal if there are other crossings near the crossing. Another purpose is to pre-calibrate the intersection number to the vehicle's onboard unit. In order to facilitate the check of intersection information to prevent signal confusion, the required line direction includes straight line a and U-turn d. Assume that the current direction of the intersection line is northeast EN direction is straight line a green light 0, U-turn d Red light 1 , the direction of the line is southwest WS direction of the signal light is straight a green light 0, U-turn d red light 1 , the resulting complete set of signal format is: intersection number + Road direction information number + line direction number + signal status number, then the signal that the signal transmitting unit needs to transmit is: 51ENa0; 51ENd1; 51WSa0; 51WSd1. Or the signal is grouped into 51ENa0d1; 51WSa0d1, so grouping can reduce the number of data sets.

The vehicle direction locating device 61 divides the direction of motion into eight directions, and the eight directions are also at 360. Equally defined in the direction of the direction, the same as the method of dividing the direction of the road, as shown in Figure 2, respectively, the east, south, west, north, northeast, northwest, southwest, southeast eight directions, each direction is divided into 45 degrees, Direction line At 22.5 degrees, a vehicle movement direction falls into any one of eight directions to form a set of data, and the measured vehicle motion direction data is transmitted to the processor in real time. In the present embodiment, if the vehicle travels from the southwest to the northeast, the four sets of signals or two sets of signals are received by the information receiving device 63 when approaching the intersection 51, and then transmitted to the processor 62. And the vehicle direction locating device 61 uses an electronic compass and/or a GPS unit to measure the direction of motion of the vehicle and derives vehicle line direction data, and the direction data information is EN, and the data information is transmitted to the processor 62. Selecting 51ENa0 and 51ENd1 or 51ENa0d1, processor 62 after comparing with the above four or two sets of signals received by the information receiving device 63 Further, the output device 64 is used to output the straight traffic light state and the turn signal light state according to the traffic permission state of the traveling route numbers a and d, thereby alerting the driver.

Embodiment 2, referring to Figures 1, 2, and 4,

In this embodiment, a three-channel road is taken as an example, which is commonly known as a 'T-junction'. The direction information is set in the same manner as in the first embodiment. At such intersections, usually the traffic light will have a straight traffic light, turn left at the traffic light, turn right. Signal lamp and U-turn traffic light, this embodiment considers setting up the signal transmitting unit near the vehicle stop line 20, a signal transmitting unit 20 may also be disposed at a central position of the intersection, the signal transmitting unit 20 is connected to the road information server unit 40 and receives its data signal, and the signal transmitting unit 20 Beacon 10 The real-time status is sent out, and the sent information is divided into a straight line group, a left turn signal group, a right turn signal group, and a U-turn line signal group. In this embodiment, the road direction is set to the positive direction intersecting the T-junction, that is, the southeast and northwest. Need to use letters here E, S, W, and N represent, in this embodiment, the road intersection number is set to 52, assuming that the lateral path of the intersection is the east-west direction, and the vertical path perpendicular to the horizontal direction is the north-south direction, if the line direction is north N The direction of the signal light is all green light, that is to say, the north turn N signal and the left turn right turn signal are green, and the horizontal direction, from east to west W The direction of the green light and the left turn signal is red, and the turn signal is green, from west to east E The direction signal is red, the right turn signal is green, and the turn signal is red. The signal that should be sent is: 52Nb0c0d0; 52Wa0b1d0; 52Ea1c0d1; In this embodiment, if the vehicle 80 travels from the south to the north, the above three sets of signals are received by the information receiving device 63 when approaching the intersection, and then transmitted to the processor 62. And the vehicle direction locating device 61 uses an electronic compass and/or a GPS unit to measure the direction of motion of the vehicle and derives vehicle movement direction data, the data information is N, and the data information is transmitted to the processor 62. The processor selects 52Nb0c0d0 after comparing with the four sets of signals previously received by the information receiving device 63, and the processor further numbers b, c, d according to the line direction. The pass permission status is used to alert the driver to output left and right turn, signal status, and U-turn status.

Embodiment 3, as shown in Figures 1, 2, and 5,

This embodiment takes a four-channel road as an example, that is, 'crossroads' The setting of the direction information is the same as that described in the first embodiment. At such intersections, usually the traffic light will have a straight traffic light, a left and right turn traffic light, and a turn traffic light. Then, in the vicinity of the traffic light, the present embodiment considers setting up near the vehicle stop line. Signal transmitting unit 20, a signal transmitting unit 20 may also be disposed at a central position of the intersection, the signal transmitting unit 20 is connected to the road information server unit 40 and receives its data signal, and the signal transmitting unit 20 Beacon 10 The real-time status is sent out, and the sent information is divided into a straight line group, a left turn signal group, a right turn signal group, and a U-turn line signal group. In this embodiment, the road direction is a positive cross intersection, that is, southeast and northwest. Need to use letters here E, S, W, N represent, in this embodiment, the road intersection number is set to 53 , assuming that the current intersection line direction is north N The status of the signal light in the direction is all green light passing state, and the signal state in other directions is red light except that the right turn signal light is green light, then the signal that should be sent is: 53Ea1b1c0d1; 53Sa1b1c0d1; 53Wa1b1c0d1; 53Na0b0c0d0; in this embodiment, such as vehicle 80 Traveling from the south to the north, the above four sets of signals are received by the information receiving device 63 when approaching the intersection, and then transmitted to the processor 62, and the vehicle direction locating device 61 adopts an electronic compass and/or The GPS unit measures the direction of motion of the vehicle and derives data on the direction of movement of the vehicle. The data information is N, and the data information is transmitted to the processor 62 and previously used by the information receiving device 63. After receiving the above four sets of signals for comparison, 53Na0b0c0d0 is selected, and the processor 62 further numbers a, b, c, d according to the line direction. The pass permission status is used to alert the driver to output straight, left and right, signal status, and U-turn status. Each set of signals further includes a time information parameter, each time information parameter is a red light or a green light cut-off time, and the time information parameter is alphabetized The combination of the T plus cutoff time follows the pass number 0 or the parking substitute number 1, the onboard unit 60 includes a clock unit 65 for comparing with the time information parameter and passing through the processor 62. Converted to the countdown countdown and output, for example, the real-time signal information is 53Ea1T150000b1T150000c0T145957d1T150000, where 150000 represents the afternoon At 15:00:00, 145957 represents 14:59:57, which means that when these times arrive, the signal 10 will change according to the program, the processor 62 Using the clock unit 65 After the time comparison, the specific number of seconds that occurs at the time of the transition time is calculated. For example, the current time is 14:59. Seconds, then you can calculate the red light that goes straight left and the direction of the U-turn will change for a minute, while the green light in the right turn will turn yellow when there is 57 seconds, then the countdown of the countdown, the car unit 60 The above data is output for the driver to know in the vehicle when the front signal light changes, and the output unit 64 of the vehicle unit 60 can adopt a large screen PDA. Or the speaker playback mode is transmitted outward, or a combination of the two is transmitted.

In the above embodiment, the vehicle direction locating device 61 When the direction of movement of the vehicle is determined to be the boundary of any two adjacent direction ranges, for example, at the boundary between the north and the northeast, the direction of motion is determined as the positive direction of the two adjacent directions, that is, the north. The so-called positive direction is the east, south, west, and north directions, such as the left direction in the north direction. 22.5 degrees is exactly opposite to the northwest direction 22.5 On the boundary line of coincidence, we artificially stipulate that it is in the north direction to match the direction set in advance at the road junction. Of course, here is the artificial regulation, and the crossing and the vehicle can also be used in this case. Set to the northwest direction range;

There is also a case where the signal transmitting unit 20 can be used in the case where some roads are dangerous or need to be closed. Installed on a mobile vehicle, the vehicle is arranged near the blocked road and sends a signal for receiving by the incoming and outgoing vehicles. Each group of signals includes road information parameters, and the road information refers to a temporary front dangerous state or a closed road state forecast, setting After each set of signal line direction codes, or pass the road information through the server unit 40 directly downloaded to the onboard unit 60, then calibrated on the map of the onboard unit 60, and then utilizes the vehicle direction locating device 61 - GPS After positioning, the driver is reminded when the vehicle arrives in the corresponding area, which facilitates the blocking of the other direction without blocking in one direction, so that the driver can better understand the front end condition, and avoid the temporary blockage caused by the blocked road section. Security incident.

In the above embodiment, there is another solution in which it is not necessary to set up the signal transmitting unit 20, but the information receiving device of the in-vehicle unit 60. 63 Download or receive real-time signals from server unit 40 via a network connection, then via GPS or GPS The vehicle traveling direction data formed by the cooperation with the electronic compass, the direction data is compared with the real-time signal to complete the task of judging the status of the front intersection signal light, and the design has the advantage that only the server 40 is needed. Connecting the network, and then downloading the relevant signals in the onboard unit 60, there is no need to build more transmitting signal units 20, which is the lowest cost implementation, and the onboard unit 60 It can be completely replaced by an existing smartphone. The existing smartphone has a three-axis gyroscope, that is, an electronic compass, and also has a GPS module with an output device. , speaker and large screen, also has a central processing unit and clock unit, so this technical solution achieves the lowest cost, just install the client software on the mobile phone, receive the relevant intersection signal on the server side, and determine the area in which it is located in real time and then give Exit the front road signal status.

In the early stage, the intersection number is marked on the map of the mobile phone or the vehicle unit 60, and the server unit is received in real time through the network. The state of the signal sent, the map divides the area of different areas according to the intersection density. When the vehicle reaches an area, the system automatically obtains the corresponding signal data from the platform, and then according to the GPS. Compared with the vehicle direction positioning of the electronic compass, the state of the traffic light at the front intersection is obtained.

In order to solve the situation that the driver does not recognize the intersection diversion channel in advance due to the occlusion of the vehicle, and then enters the diversion channel and then conducts the access road across the solid line violation, the present invention can add a left turn and a right turn in each group of signals. The number of flow channels in the direction of the line. Or, the number of the diversion channels of the adjacent intersections is released in advance by the server, or the number of the diversion channels in the direction of the line such as the left turn and the right turn is sent in advance at the position where the vehicle must pass, and the second embodiment is taken as an example, then The message sent is 52a0b2c1d1, the on-board unit 60 receives the quantity information of the flow guiding channels of each line direction, a is a straight flow guiding channel, the number of which is 0, b is a left-turning guiding channel, and the number thereof is 2, c Turning the flow channel to the right, the number is 1 , d is the U-turn channel, the number is 1, and then transmitting the above data signal to the processor 62 Waiting for comparison, at the same time, transmitting the quantity information of the diversion channel to the output device, and outputting the number and layout of the intersection diversion channel in advance for the driver to select in advance.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

A road information receiving system includes a control command unit including road information and signal state data, and further comprising a road information server unit and an onboard unit, wherein the onboard unit includes an information receiving device, a processor, and a vehicle direction orientation Device and output device, wherein:

a road information server unit, connected to the control command unit, and receiving road information and signal state data sent by the control command unit, and converting the road information and signal data into data signals for the information receiving device Receive or download and use;

The information receiving device receives or downloads a wireless signal or a data signal sent by the road information server unit by using a wireless manner or a network connection manner;

The vehicle direction locating device is connected to the processor, and transmits specific data of a moving direction of the vehicle to the processor for comparison analysis;

The processor is connected to the information receiving device, and processes the wireless signal or data signal received by the processor, and performs comparison analysis with the vehicle motion direction data measured by the vehicle direction locating device. Thereby determining the condition of the signal light in the direction of movement of the vehicle;

The output device is connected to the processor, and the processor analyzes the status of the signal light in the direction of the vehicle movement by using the voice or The output is output in the form of an image for the driver's reference.
Claims 1 The road information receiving system is characterized in that: a signal transmitting unit is provided at a road junction or a road segment to be prompted, the signal transmitting unit is connected with the road information server unit and receives a data signal thereof, and wirelessly transmits the data signal. And transmitting, the information receiving device of the onboard unit receives the data signal and performs processing by the processor.
Claims 1 The road information receiving system is characterized in that the road information server unit data signal is a plurality of sets of signals, each set of signals serves an incoming vehicle direction, and each set of signals has at least one line direction traffic and parking signal.
Claims 3 The road information receiving system is characterized in that the road direction is divided into eight directions according to east, south, west, north, northeast, northwest, southwest, and southeast, and the letters E, S, W, N, EN, and WN are respectively used. WS and ES represent the above eight directions. The traffic signal in the line direction is represented by the number 0, and the parking signal is represented by the number 1. Each group of signals includes the direction letter and the line direction. Or parking substitute number 1;

The vehicle direction locating device divides the moving direction into eight directions, and the vehicle moving direction falls into any one of the eight directions to form a set of data, and the measured vehicle moving direction data is transmitted to the processor in real time. .
Claims 4 The road information receiving system, characterized in that the line direction comprises a straight line, a left turn, a right turn, a U-turn, and any combination between the above directions, respectively, using letters a, b, c, d Representing the above line direction, each set of signals includes a direction letter and a line direction letter and a pass substitute number 0 or a parking substitute number 1 , and each set of signals further includes an intersection number;

The eight directions divided by the vehicle direction locating device are at 360 Equally drawn in the direction of the direction, the east, south, west, north, northeast, northwest, southwest, southeast eight directions, each direction is divided into 45 degrees, the direction line is 22.5 degrees.
Claims 4 The road information receiving system is characterized in that: each group of signals further includes time information parameters, each time information parameter is a red light or a green light cut-off time, and the time information parameter is represented by a letter T The combination of the cut-off time is followed by the pass-through number 0 or the parking substitute number 1 Thereafter, the onboard unit includes a clock unit for converting to a countdown count and outputting by the processor after being compared with the time information parameter.
Claims 4 The road information receiving system is characterized in that each group of signals further includes road information parameters, and the road information refers to a temporary front dangerous state or a closed road state forecast, which is set after each group of signal line direction codes.
A road information receiving system according to any one of claims 1 to 7, wherein said vehicle direction locating means employs an electronic compass and / or GPS The unit measures the direction of motion of the vehicle.
A road information receiving method, comprising the above claims 1 to 8 A road information receiving system according to any one of the preceding claims, wherein the road information receiving method step comprises

Determining the road direction of the intersection and inputting the road direction information to the road information server unit;

The road information server unit transmits the road direction information and the signal light state through the network or is externally transmitted through the signal transmitting unit;

The information receiving device in the onboard unit receives the relevant signal of the state of the signal light by wireless or network;

The vehicle direction locating device determines direction data of a direction of motion of the vehicle;

The processor selects a matching direction signal state in the signal state signal according to the direction data, and transmits the state to the driver for reference to the intersection state through the output device.
A road information receiving method according to claim 9, wherein:

When the road direction of the intersection is measured in advance, the road direction information is represented by the letters E, S, W, N, EN, WN, WS, ES. It represents eight directions of east, south, west, north, northeast, northwest, southwest and southeast. Eight directions are equally drawn in the 360 degree direction, namely east, south, west, north, northeast, northwest, southwest and southeast. Eight directions, each direction 45 degrees, 22.5 degrees to the left and right of the direction line, when the road direction is determined as the intersection of any two adjacent direction ranges, the road direction is determined as the positive direction of the two adjacent directions;

The signal state is numbered 1 or 0 Representing parking and traffic, respectively, the direction of the line includes straight, left, right, U-turn, and any combination between the above directions, using the letters a, b, c, d Representing the above line direction, each intersection number is represented by a number or a letter. The complete set of signal forms is: intersection number + road direction information number + line direction number + Signal status number;

The eight directions divided by the vehicle direction locating device are at 360 Equally drawn in the direction of the direction, respectively, east, south, west, north, northeast, northwest, southwest, southeast, eight directions, each direction is divided into 45 degrees, the direction line is about 22.5 Degree, the vehicle direction locating device further determines the direction of movement of the vehicle by using an electronic compass while confirming the direction of movement of the vehicle by using the GPS verification driving trajectory;

When the vehicle direction locating device determines that the moving direction of the vehicle is the boundary of any two adjacent direction ranges, determining the moving direction as the positive direction of the two adjacent directions;

Each set of signals further includes a time information parameter, each time information parameter is a red light or a green light cut-off time, and the time information parameter is represented by a letter T The combination of the cut-off time is followed by the pass-through number 0 or the parking substitute number 1 Thereafter, the onboard unit includes a clock unit for converting to a countdown countdown by the processor and outputting after being compared with the time information parameter;

The road information parameter is also included in each group of signals, and the road information refers to a temporary front danger state or a road closure state prediction, which is set after each group of signal line direction codes.