CN102314620A - Method, system and device for prompting road information - Google Patents

Abstract

The embodiment of the present application discloses a road information prompting method, system and device, which are applied to a vehicle with a radio frequency identification (RFID) reading module and an information output module in advance, and an RFID transmitting module is set on the road section of the vehicle. The method includes: RFID The transmitting module transmits the road information stored in advance, and the road information is the road information of the road section where the RFID transmitting module is located; the RFID reading module reads the received road information, and transmits the road information to the information output module; the information output module outputs the road information. The embodiment of the present application applies RFID technology to install RFID transmitting modules on both sides of the road, and install RFID reading modules and information output modules in the vehicle, so that the road information can be continuously received during the driving process of the vehicle. The acquisition of this road information The way is not limited by natural conditions, and there will be no blind spots, which improves the accuracy of road information output.

Description

Road information prompt method, system and device

technical field

The present application relates to the technical field of automobile communication, in particular to a road information prompting method, system and device.

Background technique

In order to provide road information to drivers, traffic management departments usually install route signs and traffic signs on the road, or mark the speed limit of the road section on the road surface. During the driving process, in order to obtain the above road information, the driver needs to shift his sight to the set road signs, so it is easy to distract the driver's attention, cause the driver to make an operation error, or cause a traffic accident. In addition, the setting of some traffic signs is difficult to attract the driver's attention, thus losing the function of reminder.

Therefore, in the prior art, GPS (Global Positioning System, Global Positioning System) navigation system is used to remind the vehicle travel route. At this time, the GPS navigation equipment needs to be installed in advance on the vehicle. However, because the GPS navigation system easily has blind spots, for example, it cannot play a navigation role when there are many tall buildings, bridge holes, tunnels or mountain roads, and it is also easily affected by the weather; in addition, the GPS navigation system generally does not include reminders to the content of traffic signs. It can be seen that, in the prior art, when the GPS navigation system is used to obtain road information, blind spots are prone to occur, and the obtained road information is not comprehensive.

Contents of the invention

Embodiments of the present application provide a road information prompting method, system and device to solve the problems in the prior art that road information acquired by GPS navigation system is prone to blind spots and the acquired road information is incomplete.

In order to solve the above technical problems, the embodiment of the present application discloses the following technical solutions:

A road information prompting method, applied to a vehicle with a radio frequency identification RFID reading module and an information output module set in advance, an RFID transmitting module is set on the road section of the vehicle, and the method includes:

The RFID transmitting module transmits the road information stored in advance, and the road information is the road information of the road section where the RFID transmitting module is located;

The RFID reading module reads the received road information, and transmits the road information to the information output module;

The information output module outputs the road information.

The pre-stored road information transmitted by the RFID transmitting module includes:

The RFID transmitting module stores the road information of the road section where the electronic tag is located;

The road information stored in the electronic tag is transmitted according to a preset time interval.

It also includes: the microcomputer control unit of the information output module receives a user's selection command for road information, and the selection command includes the category of the selected road information;

The outputting the road information is specifically: outputting the road information corresponding to the category.

The road information received by the RFID reading module to read includes:

The RFID reading module receives the road information transmitted by the RFID transmitting module through an antenna;

The road information received by the antenna is read by a reader.

The information output module outputting the road information includes:

After the microcomputer control unit of the information output module receives the road information transmitted by the RFID reading module, it outputs the road information to the LCD display unit for display; or,

After the microcomputer control unit of the information output module receives the road information transmitted by the RFID reading module, the road information is converted into voice through the voice unit, and played through the speaker.

It also includes: the RFID transmitting modules belonging to the same road section pre-store the same ID number set;

When the RFID reading module receives a plurality of road information, the information output module outputting the road information includes:

The microcomputer control unit of the information output module judges whether the RFID transmitting modules transmitting the multiple road information have the same ID number;

When having the same ID number, one road information among the plurality of road information is output.

A road information prompting system, comprising: an RFID reading module and an information output module arranged in a vehicle, and an RFID transmitting module arranged on a road section the vehicle passes through,

The RFID transmitting module is used to transmit pre-stored road information, and the road information is the road information of the road section where the RFID transmitting module is located;

The RFID reading module is configured to read the received road information, and transmit the road information to the information output module;

The information output module is used to output the road information.

The RFID transmitting module includes:

An electronic tag unit for storing the road information of the road section where the RFID transmitting module is located;

The information transmitting unit is used for transmitting the road information stored in the electronic label unit according to a preset time interval.

A road information prompting device applied in a vehicle, comprising:

The RFID reading module is used to read the pre-stored road information transmitted by the received RFID transmitting module, and transmit the road information to the information output module, and the RFID transmitting module is arranged on the road section of the vehicle , the road information is the road information of the road section where the RFID transmitting module is located;

An information output module, configured to output the road information.

The information output module includes:

The microcomputer control unit is used to receive a user's selection command for road information, the selection command includes the category of the selected road information, and output the road information corresponding to the category.

The RFID reading module includes:

An antenna unit, configured to receive the road information transmitted by the RFID transmitting module;

The reader unit is used to read the road information received by the antenna unit.

The information output module includes:

The microcomputer control unit is used to output the road information to the LCD display unit after receiving the road information transmitted by the RFID reading module;

The LCD display unit is used to display road information.

The information output module includes:

The microcomputer control unit is used to output the road information to the voice unit after receiving the road information transmitted by the RFID reading module;

The voice unit is used to perform voice conversion on the road information;

The speaker unit is used to play the voice-converted road information.

The information output module includes:

The microcomputer control unit is used to determine whether the RFID transmitting modules that transmit the multiple road information have the same ID number when receiving multiple road information transmitted by the RFID reading module, and the RFID transmitting module pre-saves the set ID number, the RFID transmitting modules belonging to the same road section have the same ID number, when it is judged that the RFID transmitting modules transmitting the multiple road information have the same ID number, output one road information in the multiple road information.

As can be seen from the above-mentioned embodiments, the embodiment of the present application is applied to vehicles with pre-set RFID reading modules and information output modules, RFID transmitting modules are set on the road sections of vehicles, and RFID transmitting modules transmit pre-stored road information, the road information It is the road information of the road section where the RFID transmitting module is located, the RFID reading module reads the received road information, and transmits the road information to the information output module, and the information output module outputs the road information. The embodiment of the present application applies RFID technology to install RFID transmitting modules on both sides of the road, and install RFID reading modules and information output modules in the vehicle, so that the road information can be continuously received during the driving process of the vehicle. The acquisition of this road information The way is not limited by natural conditions, there will be no blind spots, and the accuracy of road information output is improved; in addition, the application of the embodiment of the present application can directly play the road information, so that the driver does not need to check the traffic signs during driving. And distraction, improve driving safety.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

FIG. 1 is a flow chart of the first embodiment of the road information prompting method of the present application;

FIG. 2 is a flow chart of the second embodiment of the road information prompting method of the present application;

FIG. 3 is a flow chart of the third embodiment of the road information prompting method of the present application;

FIG. 4 is a flow chart of the fourth embodiment of the road information prompting method of the present application;

Fig. 5 is a block diagram of an embodiment of the road information prompting system of the present application;

Fig. 6 is a structure diagram of an application example of the road information prompting system of the present application;

Fig. 7 is a block diagram of an embodiment of the road information prompting device of the present application.

Detailed ways

The following embodiments of the present invention provide a road information prompting method, system and device. The embodiment of the present application is applied to a vehicle in which an RFID (Radio Frequency Identification, radio frequency) reading module and an information output module are pre-installed, and an RFID transmitting module is installed on a road section of the vehicle.

The embodiment of the present application applies RFID technology. RFID is a non-contact automatic identification technology. Compared with traditional magnetic card and IC card technology, it has the characteristics of non-contact, fast reading speed, and no wear and tear. Wireless radio frequency technology performs non-contact two-way data transmission between the reader and the radio frequency card, which can achieve the purpose of target identification and data exchange. Therefore, in the embodiment of the present application, the road information signboard uses RFID electronic signboard, and the information of the signboard is obtained through the receiving device installed in the vehicle, so as to realize that the road information can be automatically received during the driving process of the vehicle, and automatic reminders and voice calls can be made. Broadcasting, etc., to improve driving safety.

In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

Referring to Fig. 1, it is a flow chart of the first embodiment of the road information prompting method of the present application:

Step 101: The RFID transmitting module transmits the pre-stored road information, which is the road information of the road section where the RFID transmitting module is located.

Specifically, the RFID transmitting module stores the road information of the road section through the electronic tag, and transmits the road information stored in the electronic tag according to a preset time interval.

Step 102: The RFID reading module reads the received road information, and transmits the road information to the information output module.

Specifically, the RFID reading module receives the road information transmitted by the RFID transmitting module through the antenna, and reads the road information received by the antenna through the reader.

Step 103: The information output module outputs road information.

Specifically, after the microcomputer control unit of the information output module receives the road information transmitted by the RFID reading module, the road information is output to the LCD display unit for display; or, the microcomputer control unit of the information output module receives the road information transmitted by the RFID reading module. After the road information, the road information is converted into voice through the voice unit, and then played through the speaker.

Referring to Fig. 2, it is a flow chart of the second embodiment of the road information prompting method of the present application:

Step 201: The RFID transmitting module stores the road information of the road section where the RFID transmitting module is located through the electronic tag, and the road information is the road information of the road section where the RFID transmitting module is located.

The road information stored in the electronic tag of the RFID transmitting module may include the following information. The electronic tag may be an active RFID electronic tag, and each electronic tag may store one or more of them. This application implements Example without limitation:

(1) road section indication information (including road ahead information, left and right road information, intersection information, ramp information, expressway exit information, etc.);

(2) Road section traffic sign information, warning sign information and prohibition sign information;

(3) Road section speed limit information;

(4) Place name information of the location of the road section;

(5) Information of road section service area.

Among them, the RFID transmitting module can supply power for the electronic tag through the solar cell assembly, and all lanes on the side of the road where the RFID transmitting module is installed should be within the effective transmitting range of the RFID transmitting module.

Step 202: Transmitting the road information stored in the electronic tag according to a preset time interval.

In order to save transmission resources, the RFID transmission module does not need to continuously transmit the road information stored in the electronic tag, but can preset the time interval for transmitting road information, and transmit according to this time interval.

Step 203: The RFID reading module receives the road information transmitted by the RFID transmitting module through the antenna.

The RFID reading module is installed in the cab of the vehicle, and the installed position ensures that the RFID reading module can receive the road information transmitted by the RFID transmitting module.

Step 204: Read the road information received by the antenna through the reader, and transmit the road information to the information output module.

Step 205: The microcomputer control unit of the information output module receives the road information transmitted by the RFID reading module.

Step 206: The microcomputer control unit outputs the road information to the LCD display unit for display.

Referring to Figure 3, it is a flow chart of the third embodiment of the road information prompting method of the present application:

Step 301: The RFID transmitting module stores the road information of the road section where the RFID transmitting module is located through the electronic tag, and the road information is the road information of the road section where the RFID transmitting module is located.

The road information stored in the electronic tag of the RFID transmitting module may include the following information. The electronic tag may be an active RFID electronic tag, and each electronic tag may store one or more of them. This application implements Example without limitation:

(1) road section indication information (including road ahead information, left and right road information, intersection information, ramp information, expressway exit information, etc.);

(2) Road section traffic sign information, warning sign information and prohibition sign information;

(3) Road section speed limit information;

(4) Place name information of the location of the road section;

(5) Information of road section service area.

Among them, the RFID transmitting module can supply power for the electronic tag through the solar cell assembly, and all lanes on the side of the road where the RFID transmitting module is installed should be within the effective transmitting range of the RFID transmitting module.

Step 302: Transmitting the road information stored in the electronic tag according to a preset time interval.

In order to save transmission resources, the RFID transmission module does not need to continuously transmit the road information stored in the electronic tag, but can preset the time interval for transmitting road information, and transmit according to this time interval.

Step 303: The RFID reading module reads the received road information, and transmits the road information to the information output module.

Step 304: The microcomputer control unit of the information output module receives a user's selection command for road information, and the selection command includes the category of the selected road information.

Since there are many types of road information, users may only be interested in certain types of them. Therefore, in this embodiment of the application, the user can select the type of road information received according to the needs. For example, a selection button is set. Operate the selection button to input the category of the selected road information.

Step 305: Perform voice conversion on the road information corresponding to the category through the voice unit.

Step 306: Play the voice-converted road information through a loudspeaker.

Applying this embodiment, the vehicle driver can accurately inform the driver of road information such as road information and traffic sign information in the form of voice signals under any road conditions and bad weather conditions, so as to ensure that the driver does not divert his attention. The road information can be received smoothly under the circumstances.

Referring to Figure 4, it is a flow chart of the fourth embodiment of the road information prompting method of the present application:

Step 401: The RFID transmitting module transmits the pre-stored road information, which is the road information of the road segment where the RFID transmitting module is located, wherein the RFID transmitting modules belonging to the same road segment pre-store the same set ID number.

RFID transmitter modules will be installed on both sides of the same road, so the information transmitted by the electronic tag of the RFID transmitter module on one side of the road may cover the road on the other side. In order to ensure that the information is received reliably, an ID number is set for each RFID transmitting module. The RFID electronic tags on both sides of the same road section have the same ID number. Therefore, the road information read by the RFID reading module can be compared with the two before outputting. Whether the ID numbers are the same, if they are the same, only the road information received for the first time is output to prevent repeated output of the same road information.

Step 402: The RFID reading module reads the received road information in time order, and transmits the road information to the information output module.

Step 403: The microcomputer control unit of the information output module judges whether the RFID transmitting modules transmitting multiple road information have the same ID number, if yes, execute step 404; otherwise, execute step 405.

Step 404: output one piece of road information among multiple road information, and end the current process.

Step 405: Output multiple pieces of road information sequentially according to the receiving time of multiple pieces of road information, and end the current process.

Corresponding to the embodiments of the road information prompting method of the present application, the present application also provides embodiments of the road information prompting system and device.

Referring to Fig. 5, it is a block diagram of an embodiment of the road information prompt system of the present application:

The system includes: an RFID reading module 510 and an information output module 520 arranged in the vehicle, and an RFID transmitting module 530 arranged in the road section of the vehicle.

Wherein, the RFID transmitting module 530 is used to transmit pre-stored road information, and the road information is the road information of the road section where the RFID transmitting module is located;

The RFID reading module 510 is configured to read the received road information, and transmit the road information to the information output module;

The information output module 520 is configured to output the road information.

In one embodiment, the RFID transmitting module 530 may include (not shown in FIG. 5 ):

An electronic tag unit for storing the road information of the road section where the RFID transmitting module is located;

The information transmitting unit is used for transmitting the road information stored in the electronic label unit according to a preset time interval.

In one embodiment, the RFID reading module 510 may include (not shown in FIG. 5 ):

An antenna unit, configured to receive the road information transmitted by the RFID transmitting module;

The reader unit is used to read the road information received by the antenna unit.

In one embodiment, the information output module 520 may include (not shown in FIG. 5 ):

The microcomputer control unit is used to receive a user's selection command for road information, the selection command includes the category of the selected road information, and output the road information corresponding to the category.

In one embodiment, the information output module 520 may include (not shown in FIG. 5 ):

The microcomputer control unit is used to output the road information to the LCD display unit after receiving the road information transmitted by the RFID reading module;

The LCD display unit is used to display road information.

In one embodiment, the information output module 520 may include (not shown in FIG. 5 ):

The microcomputer control unit is used to output the road information to the voice unit after receiving the road information transmitted by the RFID reading module;

The voice unit is used to perform voice conversion on the road information;

The speaker unit is used to play the voice-converted road information.

In one embodiment, the RFID transmitting module 530 is specifically used to store the set ID number in advance, wherein the RFID transmitting modules belonging to the same road section have the same ID number;

The information output module may include (not shown in FIG. 5 ): a microcomputer control unit, configured to determine the RFID transmitting module that transmits the multiple road information when receiving a plurality of road information transmitted by the RFID reading module 510 whether they have the same ID number, and if they have the same ID number, output one piece of road information among the plurality of road information.

Referring to Fig. 6, it is a structure diagram of an application example of the road information prompt system of the present application:

Among them, the RFID transmitting module is installed on both sides of the road, and the RFID reading module and the information output module are installed in the vehicle cab. The information output module may include: a user button sub-module, an MCU sub-module, an LCD display sub-module, a voice sub-module and a loudspeaker sub-module.

The RFID transmitting module and the RFID reading module are used to transmit road information wirelessly. When the RFID reading module receives the road information, it transmits the road information to the MCU sub-module. At this time, the driver can select the road through the user button sub-module The category of information, and transmit the selected category to the MCU sub-module. The MCU sub-module, as a trusted control unit for information output, can output the road information of the category selected by the driver to the LCD display sub-module for display, or The road information is output to the voice sub-module, and the road information is converted into voice by the voice sub-module, and played through the speaker sub-module.

Referring to Figure 7, it is a block diagram of an embodiment of the road information prompting device of the present application:

The road information prompting device includes: an RFID reading module 710 and an information output module 720 .

Wherein, the RFID reading module 710 is used to read the pre-stored road information transmitted by the received RFID transmitting module, and transmit the road information to the information output module, and the RFID transmitting module is arranged on the vehicle On the passing road section, the road information is the road information of the road section where the RFID transmitting module is located;

An information output module 720, configured to output the road information.

In one embodiment, the RFID reading module 710 may include (not shown in FIG. 7 ):

An antenna unit, configured to receive the road information transmitted by the RFID transmitting module;

The reader unit is used to read the road information received by the antenna unit.

In one embodiment, the information output module 720 may include (not shown in FIG. 7 ):

The microcomputer control unit is used to receive a user's selection command for road information, the selection command includes the category of the selected road information, and output the road information corresponding to the category.

In one embodiment, the information output module 720 may include (not shown in FIG. 7 ):

The microcomputer control unit is used to output the road information to the LCD display unit after receiving the road information transmitted by the RFID reading module;

The LCD display unit is used to display road information.

In one embodiment, the information output module 720 may include (not shown in FIG. 7 ):

The microcomputer control unit is used to output the road information to the voice unit after receiving the road information transmitted by the RFID reading module;

The voice unit is used to perform voice conversion on the road information;

The speaker unit is used to play the voice-converted road information.

In one embodiment, the information output module 720 may include (not shown in FIG. 7 ):

The microcomputer control unit is used to determine whether the RFID transmitting modules that transmit the multiple road information have the same ID number when receiving multiple road information transmitted by the RFID reading module, and the RFID transmitting module pre-saves the set ID number, the RFID transmitting modules belonging to the same road section have the same ID number, when it is judged that the RFID transmitting modules transmitting the multiple road information have the same ID number, output one road information in the multiple road information.

From the description of the above embodiments, it can be seen that the embodiment of the present application is applied to vehicles with pre-installed RFID reading modules and information output modules. RFID transmitting modules are installed on the road sections of the vehicles, and the RFID transmitting modules transmit pre-stored road information. The information is the road information of the road section where the RFID transmitting module is located, the RFID reading module reads the received road information, and transmits the road information to the information output module, and the information output module outputs the road information. The embodiment of the present application applies RFID technology to install RFID transmitting modules on both sides of the road, and install RFID reading modules and information output modules in the vehicle, so that the road information can be continuously received during the driving process of the vehicle. The acquisition of this road information The way is not limited by natural conditions, there will be no blind spots, and the accuracy of road information output is improved; in addition, the application of the embodiment of the present application can directly play the road information, so that the driver does not need to check the traffic signs during driving. And distraction, improve driving safety.

Those skilled in the art can clearly understand that the technologies in the embodiments of the present invention can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solutions in the embodiments of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM , magnetic disk, optical disk, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present invention.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiment.

The embodiments of the present invention described above are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. A road information prompting method is characterized by being applied to a vehicle which is preset with a Radio Frequency Identification (RFID) reading module and an information output module, wherein an RFID transmitting module is arranged on a passing road section of the vehicle, and the method comprises the following steps:

the method comprises the steps that an RFID transmitting module transmits pre-stored road information, wherein the road information is the road information of a road section where the RFID transmitting module is located;

the RFID reading module reads the received road information and transmits the road information to the information output module;

the information output module outputs the road information.

2. The method of claim 1, wherein the transmitting of the pre-stored road information by the RFID transmission module comprises:

the RFID transmitting module stores road information of a road section in which the RFID transmitting module is located through an electronic tag;

and transmitting the road information stored in the electronic tag according to a preset time interval.

3. The method of claim 1, further comprising: the microcomputer control unit of the information output module receives a selection command of a user on road information, wherein the selection command comprises the type of the selected road information;

the outputting the road information specifically includes: and outputting the road information corresponding to the category.

4. The method of claim 1, wherein the RFID reading module reading the received road information comprises:

the RFID reading module receives the road information transmitted by the RFID transmitting module through an antenna;

and reading the road information received by the antenna through a reader.

5. The method of claim 1, wherein the information output module outputting the road information comprises:

after receiving the road information transmitted by the RFID reading module, a microcomputer control unit of the information output module outputs the road information to an LCD display unit for display; or,

and after receiving the road information transmitted by the RFID reading module, the microcomputer control unit of the information output module performs voice conversion on the road information through a voice unit and then plays the road information through a loudspeaker.

6. The method of claim 1, further comprising: the RFID transmitting modules belonging to the same road section pre-store the same set ID number;

when the RFID reading module receives a plurality of pieces of road information, the outputting the road information by the information output module includes:

the microcomputer control unit of the information output module judges whether the RFID transmitting modules transmitting the plurality of road information have the same ID number;

when having the same ID number, one of the plurality of pieces of road information is output.

7. A road information prompting system, comprising: an RFID reading module and an information output module which are arranged in the vehicle, and an RFID transmitting module which is arranged on a passing road section of the vehicle,

the RFID transmitting module is used for transmitting pre-stored road information, and the road information is the road information of the road section where the RFID transmitting module is located;

the RFID reading module is used for reading the received road information and transmitting the road information to the information output module;

and the information output module is used for outputting the road information.

8. The system of claim 7, wherein the RFID transmission module comprises:

the electronic tag unit is used for storing road information of a road section where the RFID transmitting module is located;

and the information transmitting unit is used for transmitting the road information stored in the electronic tag unit according to a preset time interval.

9. A road information presentation device, characterized in that, applied in a vehicle, includes:

the RFID reading module is used for reading the received pre-stored road information transmitted by the RFID transmitting module and transmitting the road information to the information output module, the RFID transmitting module is arranged on a passing road section of a vehicle, and the road information is the road information of the road section where the RFID transmitting module is arranged;

and the information output module is used for outputting the road information.

10. The apparatus of claim 9, wherein the information output module comprises:

and the microcomputer control unit is used for receiving a selection command of the road information from a user, wherein the selection command comprises the type of the selected road information, and outputting the road information corresponding to the type.

11. The apparatus of claim 9, wherein the RFID reading module comprises:

the antenna unit is used for receiving the road information transmitted by the RFID transmitting module;

and the reader unit is used for reading the road information received by the antenna unit.

12. The apparatus of claim 9, wherein the information output module comprises:

the microcomputer control unit is used for outputting the road information to the LCD display unit after receiving the road information transmitted by the RFID reading module;

and the LCD display unit is used for displaying the road information.

13. The apparatus of claim 9, wherein the information output module comprises:

the microcomputer control unit is used for outputting the road information to the voice unit after receiving the road information transmitted by the RFID reading module;

the voice unit is used for carrying out voice conversion on the road information;

and the loudspeaker unit is used for playing the road information after the voice conversion.

14. The apparatus of claim 9, wherein the information output module comprises:

and the microcomputer control unit is used for judging whether the RFID transmitting modules transmitting the road information have the same ID number or not when receiving the road information transmitted by the RFID reading module, the set ID number is stored in advance by the RFID transmitting modules, the RFID transmitting modules belonging to the same road section have the same ID number, and one piece of road information in the road information is output when judging that the RFID transmitting modules transmitting the road information have the same ID number.

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