JP2006031072A - Vehicle-driving support system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle-driving support system which precisely displays the present position of a vehicle to support safe driving therefor even if the vehicle is in a tunnel or the like, where radio waves from a GPS can not be received or under bad weather, for example, snow or deep fog, which makes it difficult to recognize road signals. <P>SOLUTION: The vehicle-driving support system is provided with; a wireless tag information reception means which receives information recorded in wireless tags which are mounted on the surfaces of roads or on additional structures provided adjacent to the roads; and an information determination means which determines whether position coordinate information consisting of latitude and longitude is included in the information received by the wireless tag information means, and inputs the position coordinate information, as substitution information for position coordinate information from a plurality of GPS satellites, to a navigation system, which displays the present position of a vehicle on a map, usually on the basis of the position coordinate information received from a plurality of the GPS satellites, in the case that the position coordinate information is included. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a driving support system that supports driving of a vehicle by receiving current position information and the like from a radio tag attached to a road surface or a road accessory.

Conventionally, as a technique related to a navigation system using a wireless tag, for example, those described in Patent Document 1 and Patent Document 2 below are known.
The thing of the following patent document 1 reads the wireless tag installed along the course from a starting point to the destination with the apparatus equipped in vehicles, such as an electric wheelchair, and avoids a collision with an obstacle. The vehicle automatically travels toward a destination along a predetermined course. The vehicle is a wheelchair.
Further, the one described in Patent Document 2 below is such that a loop antenna and a wireless tag are arranged opposite to each other on the road side of the vehicle road, and road-to-vehicle data communication is performed with the traveling vehicle. This is characterized in that it can be specified.
JP 2002-341939 A JP 2003-217090 A

However, since the technology described in Patent Document 1 automatically travels to a destination along a predetermined course, the route to the final destination or the destination differs depending on the driver, such as a vehicle such as an automobile, There is a problem that it cannot be applied when the destination is changed midway. Moreover, since the vehicle is a wheelchair, it cannot be applied to automobiles.
On the other hand, the technique described in the above-mentioned Patent Document 2 arranges a loop antenna and a wireless tag opposite to each other on the road side of the vehicle road, and performs road-to-vehicle data communication with the traveling vehicle. Since the direction can be specified, road information or the like is not obtained from a wireless tag or the like and provided to a vehicle driver or the like.
On the other hand, there is a car navigation system that calculates position coordinates including current latitude and longitude of a vehicle based on position coordinate information received from a plurality of GPS satellites, and displays the current position of the vehicle on a map based on the calculated position coordinates. Are known.
However, in this car navigation system, radio waves from GPS satellites may not be received in bad weather, in a tunnel, or under an elevated route, so that there is a problem that the current position of the vehicle cannot be presented to the driver.
In addition, various signs indicating traffic regulation information and construction information are attached to the roads on dedicated road signs or incidental structures, but these road signs are invisible or overlooked due to snow, heavy fog, etc. If this happens, safe driving cannot be ensured. A conventional car navigation system does not have a function for supporting safe driving in a state where a road sign is not visible due to snow or heavy fog.

  The object of the present invention is to present the current position of the vehicle correctly even in environments where the radio waves from GPS satellites such as in tunnels cannot be received normally, or in environments where road signs are not visible due to weather such as snow or heavy fog, It is an object to provide a driving support system for a vehicle that can support simple driving.

In order to achieve the above object, the present invention provides a wireless tag information receiving means for receiving information recorded on a wireless tag attached to a road surface or an accessory work adjacent to the road, and the wireless tag information receiving means comprises: It is determined whether or not the received information includes position coordinate information composed of latitude and longitude. If included, the current position of the vehicle based on the position coordinate information received from a plurality of GPS satellites. Is provided with information determination means for inputting as substitute information of position coordinate information from a GPS satellite to a navigation system for displaying a map on a map.
In addition, the information determination means includes traffic regulation information from a radio tag attached to an auxiliary work such as a road sign permanently or temporarily installed on the road in the information received by the radio tag information receiving means. It is determined whether or not notification information such as construction information is included, and if notification information is included, the notification information is input to the in-vehicle device and notified to the driver by voice or text. .
Further, the information determining means determines whether or not warning information from a radio tag attached to a guardrail or a building adjacent to a road is included in the information received by the RFID tag information receiving means, If the warning information is included, the warning information is input to the in-vehicle device, and the driver is notified by voice or warning sound or text.
In addition, the information determination means includes travel position information from a wireless tag installed along the travel direction in the vicinity of the position on both sides of the travel lane on the road in the information received by the RFID tag information reception means. It is characterized in that if the vehicle position information is included, the vehicle position information is input to the in-vehicle device and notified to the driver by voice or warning sound or text.
Also, the received electric field intensity from the wireless tag installed along the vicinity of the center of the road surface of the road is judged, and a signal indicating that the vehicle deviates from the center of the road surface to the right side or the left side according to the value of the received electric field intensity. It is further characterized by further comprising a received electric field strength detecting means for inputting to the device and notifying the driver by voice, warning sound or text.

According to the present invention, even in a situation where position coordinate information such as latitude and longitude from a GPS satellite such as in a tunnel or under an overpass cannot be acquired, a wireless tag that records position coordinate information consisting of latitude and longitude is tunneled. The position coordinate data is acquired from the wireless tag by the wireless tag information receiving means mounted on the vehicle, and the position coordinate information is transmitted to the in-vehicle car navigation system. By inputting it as alternative information, it is possible to accurately present the current position of the vehicle to the driver even in an environment such as in a tunnel or under an elevated road, thereby supporting safe driving.
It also receives notification information such as traffic regulation information and construction information from radio tags attached to incidental structures such as road signs that are permanently or temporarily installed on the road. Road information that is difficult to see due to bad weather such as fog or snow, or that has been written on an overlooked sign, etc. by outputting from the output means (or by inputting into the car navigation system and displaying it by sound or text) Can be surely provided to the driver or passengers to support safe driving.
In addition, when warning information indicating the presence of a building or the like is received from a guardrail adjacent to the road or a wireless tag attached to the building, the warning information is issued from a speaker or the like that is one of the in-vehicle devices. Even when guardrails or buildings are buried under snow, etc., they can prevent accidents such as contact with or colliding with these buildings, and snowplows are operated. It will be extremely effective.
In addition, when travel position information is received from a wireless tag installed along the travel direction on both sides of the road lane on the road, the travel position deviates from the center of the travel road surface to the right or left. By issuing a warning to be shown from a speaker or the like which is one of the in-vehicle devices, it is possible to prevent a contact or collision accident with another vehicle traveling in the oncoming lane or the adjacent lane.
Also, the received electric field strength from the wireless tag installed along the driving direction near the center of the road surface of the road is judged, and if the received electric field strength is below the threshold, the driving position deviates from the center of the driving road surface to the right or left. In the same way as described above, it is possible to prevent a contact or collision accident with another vehicle traveling in an oncoming lane or an adjacent lane. can do.

Hereinafter, an embodiment for carrying out the present invention will be specifically described with reference to the drawings.
Here, it is desirable to select a product satisfying the following requirements as the wireless tag used when implementing the present invention. A storage capacity of about 128 bytes is appropriate, but a larger-capacity wireless tag is selected. Since the road manager needs to rewrite the recorded information in response to changes in road conditions, it can be read and written, and is basically a passive type without battery and without worrying about power.
In addition, as to which frequency radio tag is used, a radio tag in consideration of the data communication distance with the radio tag antenna is appropriately used. Among the wireless tags that are currently commercialized, there are UHF band and 2.45 GHz band wireless tags that have a long data communication distance and can be miniaturized. Since it often falls, it is desirable to use a wireless IC tag of 135 kHz or less having a data communication distance of about 2 m, which cannot be reduced in size.
However, when wireless tags that can compensate for these drawbacks appear, it goes without saying that a longer data communication distance and a smaller one are selected. Needless to say, the RFID tag antenna that performs data communication with the above-described wireless tag selects a product having a size and performance in consideration of the data communication distance with the wireless tag.

FIG. 1 is a system configuration diagram showing an embodiment of the present invention.
The vehicle driving support system 100 using the wireless tag according to the present embodiment includes a lane identification line and a sign on the road, a traffic sign information such as one-way traffic or a road sign for notifying construction information, A wireless tag information receiving unit 103 that receives information recorded on a wireless tag 101 installed on a guardrail installed adjacent to the road or on an adjacent building such as a house, a power pole, or a fence via an antenna 102, and the wireless tag information The information determination unit 104 that determines the information received by the reception unit 103, the reception field strength detection unit 105 that determines the reception field strength of the wireless tag information received from the wireless tag 101, and the information that the information determination unit 104 determines is mounted on the vehicle. In order to notify the driver by outputting sound (or warning sound) or text to the speaker 111 or the liquid crystal monitor 112 which is one of the devices 110 An audio output unit 106 and the display output unit 107, an external connection unit 108 for inputting the position coordinates information information determination unit 104 determines the car navigation device 113 which is one of the in-vehicle device 110.
The antenna 102 includes a lower antenna 102b installed on the floor of the vehicle and a ceiling antenna 102a installed on the ceiling (or the front of the vehicle).

The information determination unit 104 determines whether or not position coordinate information including latitude and longitude is included in the information received by the RFID tag information reception unit 103. If included, the information determination unit 104 displays the position coordinate information as an external connection unit. Then, the information is input to the car navigation device 203 as substitute information for the position coordinate information from the GPS satellite. As the position coordinate information recorded in the wireless tag 101, position coordinate information composed of latitude and longitude of the WGS-84 coordinate system generally used in the GPS system is set as numerical data.
Whether the information determination unit 104 includes notification information such as traffic regulation information and construction information from the wireless tag 101 attached to an auxiliary work such as a road sign permanently or temporarily installed on the road. If the notification information is included, the notification information is input to the voice output unit 106 or the display output unit 107 and output to the in-vehicle speaker 111 or the liquid crystal monitor 112 by voice (or warning sound) or text. Let
In addition, the information determination unit 104 determines whether or not warning information from the radio tag 101 attached to a guardrail or a building adjacent to the road is included, and if the warning information is included, the warning information is displayed. The sound is input to the sound output unit 106 and the display output unit 107 and is output to the in-vehicle speaker 111 and the liquid crystal monitor 112 by sound (or warning sound) or characters.
In addition, the information determination unit 104 determines whether or not traveling position information from the wireless tag 101 installed along the traveling direction is included in the vicinity of the both-side road position on the traveling lane of the road, and is shifted to the right side or the left side. If the travel position information indicating that the vehicle is traveling in a biased manner is included, the travel position information is input to the in-vehicle device and notified to the driver by voice, warning sound, or text. The electric field strength detection unit 105 determines the received electric field strength from the wireless tag 101 installed along the traveling direction in the vicinity of the center of the road surface of the road, and the traveling position is shifted to the right from the center of the traveling road surface according to the value of the received electric field strength. A signal indicating that the vehicle has deviated to the left is input to the audio output unit 106 and the display output unit 107, and output to the in-vehicle speaker 111 and the liquid crystal monitor 112 by voice (or warning sound) or text. To help.

FIG. 2A is a diagram showing an example of information recorded in the wireless tag 101. The position coordinate information 201 with the information type ID = 0001, the notification information 202 with the information type ID = 0002, and the information type ID = 0003. Warning information 203 and travel position information 204 with information type ID = 0004.
In the position coordinate information 201, in consideration of cooperation with the car navigation apparatus 113, latitude / longitude information represented by a WGS-84 coordinate system generally used in GPS is set as numerical data.
In the notification information 202 such as road regulation information and construction information, character data indicating the contents of road regulation and construction contents are set.
In the warning information 203 indicating that a guardrail or a house exists, character information indicating an existing building or facility is set.
In the travel position information 204, information indicating the vicinity of the right road side position, the vicinity of the left road side position, and the center of the travel lane is set. The travel position information indicating that it is near the right road side position is recorded on a wireless tag arranged along the right road side line. In addition, the travel position information indicating that it is near the left road side position is recorded on a wireless tag arranged along the left road side line. The travel position information indicating the vicinity of the center position is recorded in the wireless tag 101 arranged along the vicinity of the center of the travel lane, as shown in FIG.
The received electric field strength detection unit 105 runs near the center of the traveling lane if the received electric field strength of the wireless tag 101 received by the lower antenna 102b of the vehicle 205 is equal to or greater than a predetermined value as shown in FIG. It is determined that However, when the vehicle 205 is traveling to the right or left from the center position, the received electric field strength is low. Therefore, the vehicle 205 is biased to the right or left based on the determination result that the received electric field strength is lower than the predetermined value. A determination result indicating that the vehicle is traveling is output.

When notifying character information by voice, the voice output unit 106 converts the character information into voice and generates it from the speaker 111.
When the character information for warning is generated as a warning sound or a warning sound, the voice output unit 106 converts the warning information or the warning sound into a warning sound or a warning sound and generates it from the speaker 111.
Note that the configuration information in FIG. 2 is not set for all of the wireless tags 101 installed on road surfaces, road signs, guardrails, utility poles, houses, fences, etc. adjacent to the road. For example, only information indicating that these structures or facilities exist is recorded in a power pole adjacent to a road or a wireless tag of a house, and position coordinate information is not recorded.
Not only the traveling position information 204 but also the position coordinate information 201, the notification information 202, and the warning information 203 may be recorded on the wireless tag 101 installed near the center of the road surface or near the roadside position.

FIG. 3 is a flowchart showing a process flow in the driving support system 100.
The wireless tag information receiving unit 103 constantly monitors the radio waves received from the wireless tag 101 installed on the road surface or incidental workpieces, but the road sign or guardrail via the ceiling antenna 102a or the lower antenna 102b. When the received radio wave is detected from the incidental workpiece or the wireless tag 101 installed on the road surface, the information recorded in the wireless tag 101 is received (step 301). Then, it is determined whether the received information includes notification information such as traffic regulation information or construction information. If the notification information is included, the notification information is input to the voice output unit 106 or the display output unit 107. Then, the vehicle-mounted speaker 111 or the liquid crystal monitor 112 outputs the sound (or warning sound) or characters (steps 302 and 303).
Further, it is determined whether or not warning information from a radio tag 101 attached to a guardrail or a building adjacent to the road is included. If the warning information is included, the warning information is displayed on the voice output unit 106 or the display. The data is input to the output unit 107 and output to the vehicle-mounted speaker 111 or the liquid crystal monitor 112 by voice (or warning sound) or text (steps 304 and 305).
Further, it is determined whether or not position coordinate information including latitude and longitude is included, and if included, the position coordinate information is input to the external connection unit 108, and the position from the GPS satellite is input to the car navigation device 203. Input as alternative information of the coordinate information (steps 306 and 307).
Further, when travel position information indicating a rightward travel position or a leftward travel position from the wireless tag 101 installed at the roadside position of the road is included, the travel position information is input to the audio output unit 106 or the display output unit 107. Then, the vehicle-mounted speaker 111 or the liquid crystal monitor 112 is made to output with sound (or warning sound) or characters (steps 308 and 309).
Further, when the lower antenna 102b receives a radio wave from the wireless tag 101 installed along the traveling direction near the center of the road surface of the road (step 310), the received electric field detecting unit 105 determines the received electric field strength. When the value of the received electric field strength is larger than the predetermined value, a signal indicating that the vehicle is in the driving state in the vicinity of the center of the driving lane is input to the display output unit 107, and the vehicle-mounted liquid crystal monitor 112 is output in characters or symbols ( Step 311). However, if the received electric field strength is lower than the predetermined value, a signal indicating that the traveling position deviates from the center of the traveling road surface to the right or left is input to the display output unit 107, and the character is input to the vehicle-mounted liquid crystal monitor 112. Alternatively, it is output as a symbol (step 312).

FIG. 4 is an explanatory diagram showing the relationship between the installation position of the wireless tag and the travel position of the vehicle. The vehicle 420 is within the range of the road line 412 and the center line 413 depicted on the vehicle travel surface 411 of the vehicle travel road 410. The vehicle 420 is equipped with a bottom antenna 102b and a ceiling antenna 102a. In addition, the center line 413 shown in FIG. 4 shows the boundary with an adjacent lane.
Wireless tags 101 are embedded at predetermined intervals along the traveling direction in the vicinity of a substantially central position on the road surface on which the vehicle 420 travels. Information recorded on the wireless tag 101 is received by the bottom antenna 102 b mounted on the vehicle 420.
The ceiling antenna 102a receives information on a wireless tag attached to a road sign or the like installed above the road.

FIG. 5 shows that the position coordinate information of the traveling vehicle is acquired from the wireless tag 101 in a location or situation where the position coordinate information such as latitude / longitude from the GPS satellite cannot be acquired in a tunnel, under an overpass, or in a valley of a building. It is the figure which showed the example to do.
As shown in the illustrated example, when the vehicle 420 travels in the tunnel 500, position coordinate information is received from the bottom antenna 102b and the wireless tag 101 installed on the road surface 501, and the car navigation device 113 receives the GPS satellite from the GPS satellite. It is input as substitute information for the position coordinate information.
The car navigation device 113 recognizes the current position of the vehicle from the position coordinate information received from the wireless tag 101 installed on the road surface 501.

FIG. 6 shows an example in which various information regarding roads such as traffic information such as road signs that are always installed on roads and under construction information such as signboards that are temporarily installed during road construction, etc. are acquired from a wireless tag. And a configuration for receiving road information by communicating with the ceiling antenna 102a of the vehicle 420 and the wireless tag 101 that records road information written on the signs 601 and 602 installed on the road. It has become.
Road information is received from the wireless tag 101 by the ceiling antenna 102a mounted on the vehicle 420, input to an in-vehicle device such as the car navigation device 113 and the speaker 111, and construction information and the like are displayed to the driver or the like by voice or character display. provide.
Since the wireless tag 101 can rewrite recorded data, the administrator can rewrite the data using a rewriting device when the construction period is changed.

FIG. 7 shows an example in which it is possible to travel near the center of the vehicle road traveling surface while communicating with the wireless tag 101 installed near the center of the vehicle traveling surface. Are installed on the vehicle running surface 411 and the bottom antenna 102b mounted on the vehicle 420 in a situation where the roadside line 412 depicted in FIG. By communicating with the wireless tag 101, the vehicle travel road 410 can be traveled along the wireless tag 101 installed.
In FIG. 7A, the bottom antenna 102b mounted on the traveling vehicle 410 always performs data communication with the wireless tag 101 installed on the vehicle traveling surface 411. The data communication possible distance between the wireless tag 101 and the lower antenna 102b has a limit, and if the limit is exceeded, data communication cannot be performed. The fact that data communication between the wireless tag 101 and the low antenna 102b is possible means that the distance between the wireless tag 101 and the low antenna 102b is short, and the electric field strength at that time is strong. Therefore, the vehicle 410 is traveling near the wireless tag 101 installed near the center of the vehicle traveling road. Therefore, it is possible to travel without departing from the traveling lane by notifying the current traveling position so as to travel in a position where the received electric field strength does not become lower than the predetermined value.

8A and 8B, the left wireless tag 101L and the right wireless tag 101R are installed along the roadside lines 412 and 413 of the vehicle traveling road 410, and the traveling position information from these wireless tags 101L and 101R is shown. By receiving, the current traveling position is determined and notified to the driver.
In FIG. 8A, traveling position information indicating that the vehicle 420 is traveling to the left side is received from the left wireless tag 101L. In this case, since the distance between the wireless tag 101 and the right wireless tag 101R near the center and the lower antenna 102b is increased, the received electric field strength is lower than a predetermined value, and only the received electric field strength from the left wireless tag 102L is a predetermined value. Become bigger. Therefore, the information received from the left wireless tag 102L is adopted, and information indicating that the vehicle 420 is traveling to the left is input to the car navigation device 113 and the speaker 111 to give a warning.
In FIG. 8B, traveling position information indicating that the vehicle 420 is traveling to the right side from the right wireless tag 101R is received. In this case, since the distance between the wireless tag 101 near the center and the left wireless tag 101L and the lower antenna 102b is large, the received electric field strength is lower than a predetermined value, and only the received electric field strength from the right wireless tag 102R is a predetermined value. Become bigger. Therefore, the information received from the right wireless tag 102R is adopted, and information indicating that the vehicle 420 is traveling to the right is input to the car navigation device 113 and the speaker 111 to give a warning.

9 (a) and 9 (b) show that a vehicle such as a snowplow has a structure such as a guardrail or a fence / wall while communicating with a plurality of wireless tags embedded in the structure such as a guardrail or a fence / wall. FIG. 9A shows an example in which contact is not made even when it is invisible due to snow. In FIG. 9A, RFID tag antennas are provided at both ends of a snow removal blade 902 of a snow removal vehicle 901 that removes snow from the vehicle traveling road 410 and the like. 101c is installed, and data communication is performed with the wireless tag 101 installed near a guard rail 903 or the like installed on a roadside portion of the vehicle traveling road surface 411 or the like. The fact that data communication between the wireless tag 101 and the wireless tag antenna 102c is possible means that the wireless tag 101 and the wireless tag antenna 101c are capable of data communication, and the electric field strength of the data communication is strong and close. Therefore, the snow removal blade 902 of the snow removal vehicle 901 may be in contact with the guard rail 903. In such a state, information indicating that there is a risk of collision with a guardrail or the like is input to the in-vehicle speaker 111 or the car navigation device 113, and the driver is notified by voice or text, and safe snow removal. Support the work.
In FIG. 9B, the wireless tag 101 is installed on the outer wall of a building 911 or the like standing near the vehicle traveling road, and attached to both ends of the snow removal blade 902 of the snow removal vehicle 901 that removes snow from the vehicle traveling road or the like. Communicate with the wireless tag antenna 102c. The fact that data communication is possible means that the wireless tag 101 and the wireless tag antenna 102c are in a state in which the data communication can be transmitted and received with each other, the electric field strength of the data communication is strong and close, and the snow removal vehicle 901 The snow removal blade 902 may be in contact with the building 91. In such a state, information indicating that there is a risk of colliding with the building 901 or the like is input to the in-vehicle speaker 111 or the car navigation device 113, and the driver is notified by voice or text, so that it is safe. Support snow removal work.

It is a block diagram which shows one Embodiment of the driving assistance system by this invention. It is a figure which shows the structural example of the information recorded on a wireless tag. It is a flowchart which shows the outline | summary of a process of the driving assistance system of FIG. It is explanatory drawing which shows the relationship of the data communication of the radio | wireless tag installed in the vehicle travel road, and the radio | wireless tag antenna mounted in a vehicle. It is explanatory drawing which shows the example which is installed in a tunnel and acquires position coordinate information from a wireless tag. It is explanatory drawing which shows the example which acquires notification information, such as construction information, from the radio | wireless tag installed in incidental structures, such as a road sign. It is a figure explaining the example which determines the deviation of a driving | running | working position with the received electric field strength from a wireless tag. It is a figure explaining the example which installs a wireless tag in the roadside of the both sides of a traveling road, and determines the deviation of a traveling position. It is a figure explaining the example in the case of notifying that there exists a danger of a collision by installing a wireless tag in the building etc. of the vicinity of a travel road.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Driving assistance system 101 ... Radio | wireless tag 102 ... Antenna 102a ... Ceiling part antenna 102b ... Bottom part antenna 103 ... Wireless tag information receiving part 104 ... Information determination part 105 ... Received electric field strength detection part 106 ... Audio | voice output part 107 ... Display output part DESCRIPTION OF SYMBOLS 108 ... External output part 110 ... In-vehicle apparatus 111 ... Speaker 112 ... Liquid crystal monitor 113 ... Car navigation apparatus 420 ... Vehicle 901 ... Snow removal vehicle 902 ... Snow removal blade

Claims (5)

A driving support system for supporting driving of a vehicle on a road,
Radio tag information receiving means for receiving information recorded on a radio tag attached to a road surface or an attached work adjacent to the road, and a position comprising latitude and longitude in the information received by the radio tag information receiving means It is determined whether or not the coordinate information is included, and if included, the GPS for the navigation system that displays the current position of the vehicle on the map based on the position coordinate information received from the plurality of GPS satellites. A vehicle driving support system comprising: information determination means for inputting as substitute information of position coordinate information from a satellite.   In the information received by the wireless tag information receiving means, the information determination means includes traffic regulation information and construction work from a wireless tag attached to an auxiliary work such as a road sign permanently or temporarily installed on the road. It is determined whether or not notification information such as information is included, and if the notification information is included, the notification information is input to the in-vehicle device and notified to the driver by voice or text. The vehicle driving support system according to claim 1.   The information determination means determines whether or not warning information from a radio tag attached to a guardrail or a building adjacent to a road is included in the information received by the RFID tag information receiving means, and warning information The vehicle driving support system according to claim 1 or 2, wherein the warning information is input to the in-vehicle device and the driver is notified by voice, warning sound, or text.   Whether the information determination means includes travel position information from a wireless tag installed along the travel direction in the vicinity of the positions on both sides of the travel lane of the road in the information received by the RFID tag information reception means. 4. If the vehicle position information is included, the vehicle position information is input to the in-vehicle device, and the driver is notified by voice, warning sound, or text. The vehicle driving support system according to one item.   Judgment of the received electric field strength from the wireless tag installed along the direction of travel near the center of the road surface of the road, and a signal indicating that the signal deviates from the center of the road surface to the right or left depending on the value of the received electric field strength. The vehicle driving support system according to any one of claims 1 to 4, further comprising a received electric field strength detecting means for inputting to an in-vehicle device and notifying a driver by voice, warning sound or text.

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