KR101990117B1 - Mcu system integrated with ir/rf communication module, layer module and sam - Google Patents

Abstract

Disclosed is an integrated main control unit (MCU) device performing a role for matching infrared (IR)/radio frequency (RF) communication, electronic payment (secure application module (SAM)), vehicle entry information, image photographing information, and communication information in a system such as a Hi-pass system, a traffic information providing system through a roadside base station, a smart tolling system, a wireless access for vehicular environment (WAVE), and the like. According to the present invention, the system comprises: integrated L2, L7 module units for IR/RF communications; the SAM for processing electronic payment; a cell plan control unit for controlling an antenna; and a signal synchronization unit for synchronizing a signal. Accordingly, a communication mode divided into each layer is integrated to remove a data transmission time for each layer and only authentication (SAM) required for billing is processed in internal communications, thereby processing data at high speed and removing data bottleneck.

Description

[0001] The present invention relates to an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system.

The present invention relates to a system and method for transmitting and receiving digital data in a Dedicated Short Range Communications (DSRC) 5.8 KHz infrared (IR) / radio frequency (RF) module, a LAYER module and an electronic payment module (SAM) ) Integrated MCU (Main Control Unit) system.

The present invention relates to a V2V (Vehicle to Vehicle), a vehicle automatic control and safe driving support technology, and a V2V (Vehicle to Vehicle), which are all types of communication applicable to a vehicle, which provide information to a driver about vehicles, Vehicle-to-Everything (WAVE), Wireless Access for Vehicle Environment (WAVE) communication, Internet of things, and automatic fare collection system.

Recently, a lot of research has been conducted to provide information such as traffic information collection and bill collection through DSRC (Dedicated Short Range Communications), a high-speed packet communication system for short-distance use, and various intelligent transportation systems ) Services are being provided.

An ITS service such as an electronic toll collection (ETC), a bus information system (BIS), a road information system, a road guidance system, and a commercial vehicle operation (CVO) (OBE: On Board Equipment), and wireless packet data transmission is possible.

In addition, the ITS service can efficiently utilize a wireless channel for data transmission, and can also use a point-to-point or point-to-multipoint communication method in a narrow radio cell area.

However, communication quality is very important in order to accurately process information about vehicles moving at high speed.

For example, communication quality is one of the most important factors in achieving the purpose of meeting various communication environments such as automatic fare collection and V2V (vehicle-to-vehicle communication) and V2X (vehicle-to-vehicle communication).

Particularly, in the case of vehicle communication moving at high speeds of 160 km / h or more, it is important to minimize errors such as communication accuracy and communication reverse phenomenon.

In order to solve such a problem, it is essential to make high-speed communication even in vehicles running at high speed and to simplify information processing. Conventionally, devices for IR communication and devices for RF communication, SAM for electronic payment, And a CCU (Central Control Unit) for the mobile communication terminal are all separately configured to cause a variety of signal interference, so that data bottlenecks and communication inversion phenomena occur frequently between the devices, so that normal communication and charging are not frequently performed .

Korean Patent Registration No. 10-1469171 relates to a communication quality measuring apparatus for a high pass system, which measures communication faults between a road traffic fee collection system and a vehicle terminal in advance through a communication quality measuring device, The quality of traffic is analyzed and provided to the manager so as to prevent the accident caused by the obstacle due to the communication failure between the road traffic fee collection system and the vehicle terminal in advance and to provide information about the communication quality of the high- Construction and management of the road traffic billing system can save time and money due to the maintenance of the road traffic billing system based on the manpower.

Korean Patent Laid-Open Publication No. 10-2018-0012722 relates to a smart high-pass system, which does not constitute a separate vehicle classifying device in a high-pass system and interworks with a vehicle search DB managed by a government side, It is economically advantageous to prevent the vehicle classifications from being malfunctioned by receiving accurate vehicle classification information. In addition, it is also possible to judge whether or not the vehicle is an accident, thereby improving convenience and safety. Automatic collection processing is performed.

Korean Patent Registration No. 10-1575331 relates to a traffic information providing system and method thereof, the method comprising: receiving information on a departure route from a telematics server; Setting a desired route from a current position of the vehicle to a destination; Determining whether the normal path departure node exists on the desired path; Determining whether the image display condition is satisfied when the normal path outgoing node exists; And displaying an image corresponding to the out-of-range path departure node when the image display condition is satisfied, thereby providing information about the node in which the out-of-path event occurs regularly.

In the above-described related arts, it can be considered as a part contributing to the improvement of the accuracy and quality of communication, but it has remained a problem that the high-speed communication of the vehicle moving at high speed is enabled.

1. Korean Patent Registration No. 10-1469171 2. Korean Patent Publication No. 10-2018-0012722 3. Korea Patent No. 10-1575331

In the present invention, the IR / RF communication module between the high-pass system and the roadside base station and the L2 and L7 layers communicating therewith are integrated in the MCU so that the inter-layer data transmission time is not required, ) Communication module, a LAYER module, and a SAM-integrated MCU system.

Other objects of the present invention will be apparent from the following description.

According to an aspect of the present invention, there is provided an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system,

IR / RF communication module;

An L2 and L7 integrated layer module for transmitting signals transmitted and received between the high-pass system and the base station via the IR / RF communication module;

A SAM for processing electronic billing based on information processed through the IR / RF communication of the L2 and L7 integrated layer modules;

A synchronization signal unit for synchronizing signals associated with the IR / RF communication of the L2 and L7 integrated layer modules; And

And a Cell Plan control unit for controlling an antenna for IR / RF communication of the L2 and L7 integrated layer modules.

In the present invention, the Cell Plan control unit

And an antenna switching synchronous signal processing module for operating the IR / RF DSRC communication cell plan, and has a control function for controlling the antenna state.

In the present invention, the IR / RF communication module

A TX / RX buffer module having a buffer function for storing a bit stream transmitted / received through an antenna; And

And a scramble encoder and decoder for Manchester encoding and decoding processing.

In the present invention, the SAM

And supports up to 12 payment authentication (PSAM) required for billing processing.

The present invention is characterized in that information of up to 12 pieces of information of the IR / RF communication module, the L2 and L7 integrated layer module and the payment authentication (PSAM) can be data-duplicated by the active-active structure.

In the present invention,

VDA, VDU, IPU, environment control device, and power supply duplication process.

According to the IR / RF communication module, the LAYER module and the SAM integrated MCU system of the present invention, the L2 and L7 layers, which transmit signals through the IR / RF communication module between the high-pass system and the roadside base station, So that it is possible to prevent data bottlenecks and to perform high-speed data processing, as well as to prevent errors in communication So that high-quality communication is possible.

In other words, conventionally, the structure in which the IR / RF antenna and the communication layers L2 and L7 are separated has been improved so that it is integrally configured to process from one MCU to BST / GET / DEBIT / SET. By changing the RF modules individually configured for each lane from 10 to 5 for each lane and changing the IR module from 10 to 5 for each lane, it is possible to prevent data bottleneck by preventing the data transmission time per layer, It is possible. In the L7 - SAM section, the communication speed can be improved from the existing 4Mbps to 20Mbps, so that the optimal communication accuracy can be realized.

In addition, the present invention secures source technologies such as high-speed wireless communication and bill collection through securing differentiated core solution of smart tolling system, thereby enabling the entry into the domestic smart tolling market, high pass advanced business, high pass parking lot business C-ITS It is possible to provide a footstep that can advance into the market.

In addition, it is possible to establish a cornerstone for entry into various foreign fare collection markets such as Vietnam and Brazil, and to establish an expansion base of the road traffic application service market. Participation in the V2X communication infrastructure construction for the autonomous driving car era, It is also possible to acquire technology based on Wireless Access in Vehicular Environment (WAVE), which is a communication technology to provide various services and high transmission speed in mobile environments.

1 is a control block diagram of an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system according to an embodiment of the present invention;
FIG. 2 is an overall configuration diagram of an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system according to an embodiment of the present invention; FIG.
3 is a block diagram of an IR / RF communication module.
4 is a process configuration diagram of the MCU;
5 is a configuration diagram of the L2 and L7 integrated layer module.
6 is a configuration diagram of an MCU having a data duplication processing structure.
7 to 15 are diagrams showing examples of various configurations of an MCU according to an embodiment of the present invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The expression of the singular value used in the present invention is considered to have at least one meaning.

The verb "comprises" and its utility does not exclude the presence of elements or steps not listed in a claim or description. The absence of multiple representations in front of an element does not exclude the presence of a plurality of such elements.

The description of the present invention is based on the communication between the high-pass system and the base station. Accordingly, a detailed description of a technique generally known in such a system is omitted.

[Preferred embodiment of the present invention]

The high-pass system, which has been increasingly used for the rapid entry and exit of a highway toll gate in recent years, includes a separate high-pass terminal installed in a vehicle and a high- And a system for recognizing entry and exit of the expressway.

Therefore, in order to use the high-pass system, a high-pass terminal capable of wireless communication with the system provided in the high-pass exclusive car should be installed.

That is, when a high pass system is used, a high pass terminal capable of performing IR or RF communication with a system installed in a high pass exclusive car should be provided.

The present invention utilizes the configuration of the general high-pass system and improves some configurations for the purpose of improving communication quality such as communication accuracy by enabling high-speed communication even when the vehicle is running at a high speed. The DSRC (Dedicated Short Range Communications) 5.8Khz IR (Infrared Ray) / RF (Radio Frequency) communication module, LAYER module and Secure payment module (SAM) Unit) system.

That is, in the conventional MCU, an IRCU (Infrared Ray Control Unit) for IR communication and an RFCU (Radio Frequency Control Unit) for RF communication are separately configured. A separate SAM is configured for electronic payment, A central control unit (CCU) is configured for information matching the signals transmitted / received between the devices, and a data bottleneck phenomenon and a communication inversion phenomenon frequently occur between the devices, .

The present invention further relates to a traffic information providing system through a high-pass system and a roadside base station, an IR / RF communication and an electronic payment (SAM), a vehicle entry information, and a video image pickup in a system such as Smart Tolling and Wireless Access for Vehicular Environment (WAVE) Information MCU, and communication information.

In the present invention, the L2 and L7 layers, which perform communication between the high-pass system and the roadside base station, are formed into a single chip having the same communication method (protocol) and integrated into the MCU so that high- While minimizing communication errors.

The present invention is configured to process only the electronic payment authentication (SAM) necessary for billing processing by internal communication.

That is, the present invention modularizes the IR communication and the RF communication, and integrates the layers L2 and L7, which represent the information communication protocol that standardizes the promises of communication between the high-pass system and the base station, on the same chip so as to have the same communication method.

The object of the information communication protocol is efficient transmission and reception of information. However, in the related art, L2 and L7 are separated into different chips and the transmission and reception can not be efficiently performed due to different communication methods.

The present invention relates to an IR / RF communication module; An L2 and L7 integrated module for transmitting signals transmitted and received between the high pass system and the base station through the IR / RF communication module; A SAM for processing electronic billing based on information processed through the IR / RF communication of the L2 and L7 integrated modules; A synchronization signal unit for synchronizing the signals associated with the IR / RF communication of the L2 and L7 integrated modules; And a Cell Plan control unit for controlling an antenna for IR / RF communication of the L2 and L7 integrated modules.

The present invention is configured to support up to 12 Purge Secure Application Modules (PSAMs) (security application modules for non-contact type electronic money terminals) required for charging processing, and has an Active-Active .

A TX / RX buffer module (TX buff, RX buff) having a buffer function for storing a data bit stream transmitted / received through an IR / RF antenna (ANT) without interruption and a start / A Manchester encoding and decoding module (Manchester Encoding and Manchester Decoding) for associating the positive / negative tilts of 1/0 with 1/0 and a scramble encoder and decoder (SCRAMBLE Encoder, SCRAMBLE Decoder) for Manchester encoding and decoding processing, And transmits and receives signals between the path system and the base station.

The present invention configures the MCU so that the VDA (video distributor), the VDU (voice data), the IPU (execution processor), the environment control device, and the power supply can be simultaneously duplicated.

The present invention configures an IR / RF communication module to have an antenna switching synchronous signal processing module for IR / RF DSRC communication cell plan operation and a control function for state control.

The present invention relates to a V2V (Vehicle to Vehicle), which is a vehicle automatic control and safe driving support technology, and a V2X (Vehicle to Vehicle), which are all types of communication applicable to a vehicle, Vehicle-to-Everything (WAVE), Wireless Access for Vehicle Environment (WAVE) communication, Internet of things, and automatic fare collection system.

[Preferred Embodiment of the Present Invention]

Hereinafter, preferred embodiments of the IR / RF communication module, the L2, L7 layer module and the electronic payment module (SAM) integrated MCU system according to the present invention will be described in detail with reference to the drawings.

1 is a control block diagram of an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system according to an embodiment of the present invention. FIG. 2 is an overall configuration diagram of an IR / RF communication module, a LAYER module, and a SAM integrated type MCU system according to an embodiment of the present invention. 3 is a block diagram of the IR / RF communication module. 4 is a process configuration diagram of the MCU. 5 is a configuration diagram of the L2 and L7 integrated module. 6 is a configuration diagram of an MCU having a data duplication reasoning structure. 7 to 15 are diagrams illustrating various configurations of an MCU according to an embodiment of the present invention.

As shown in FIG. 1, the IR / RF communication module, the LAYER module, and the SAM integrated type MCU system according to the present invention includes an IR / RF communication module; An L2 / L7 integrated module 100 for transmitting signals transmitted / received between the high-pass system and the base station via the IR / RF communication module; An SAM 200 for processing electronic billing based on information processed through the IR / RF communication of the L2 and L7 integrated module 100; A synchronization signal unit 300 for synchronizing the signals accompanied by the IR / RF communication of the L2 and L7 integrated module 100; And a Cell Plan control unit 400 for controlling an antenna for IR / RF communication of the L2 and L7 integrated module 100. [

The present invention for controlling the above structures as a whole configures the MCU to have an internal processing structure as shown in FIG. 4, information necessary for communication between a high-pass terminal and a base station of a traveling vehicle, such as a main office host computer, a video server, an infrared and wireless antenna, a voice data processing device, a front camera and a rear camera, And the like.

As shown in FIG. 5, the L2 and L7 integrated module 100 includes, for example, L2 for enabling errorless data transmission from one base station to another base station, L2 for supporting a user interface provision and service to a software user on the network L7 are standardized to use the same communication protocol and integrated into one chip. However, it is not necessarily limited to these functions.

Communication protocols can include signaling, authentication, and error detection and correction functions, and encapsulate one protocol in another. As shown in FIG. 5, the L2 and L7 integrated module 100 can integrate a relay module or the like into one chip.

L2, and L7 integrated modules 100, in the case of the high-pass service, the infrared ray communication with the radio transmission / reception system for toll collection installed in the tollgate on the toll gate when the electronic card is inserted into the high- ) Or radio frequency communication to settle tolls on toll roads.

That is, the high-pass terminal performs wireless communication with the toll collecting system installed in the toll gate to transmit the information of the electronic card to the automatic taxing wireless transmission / reception system, and based on the toll information received from the automatic taxing wireless transmission / The toll settlement and the information update using the electronic card are proceeded.

3, the IR / RF communication module according to the present invention includes a TX / RX buffer module TX (TX) having a buffer function for storing a bit stream transmitted / received through the IR / RF antenna (ANT) (Manchester Encoding, Manchester Decoding) 40 (corresponding to the buffers 20 and 30) for associating the positive and negative slopes of the data bit stream with the start / And 50, and a scramble encoder and decoder (SCRAMBLE Encoder, SCRAMBLE Decoder) 60 and 70 for Manchester encoding and decoding processing.

That is, the data bit stream transmitted / received through the IR / RF transmission / reception antenna 10 is stored by the buffer function, and the scramble encoding and decoding function can be performed for the Manchester encoding and decoding processing.

The IR / RF communication module is configured to transmit and receive information between the high-pass system and the base station. The IR / RF communication module allows the signal to be processed through the logical connection control (LLC) 80, and the SPI bus (Serial Peripheral Interface Bus) duplex communication is possible.

The IR / RF communication module may be configured to decode the encrypted content, e.g., as an output to a content decoding apparatus that receives and decodes the encrypted content, that is, corresponds to one or more of the plurality of data elements constituting the program And a scramble key (SCRAMBLE KEY) 90 for generating a scramble.

The IR / RF communication module is able to send and receive information such as supplier, PSAM, transaction number, DEBIT by communication between the high-pass system and the base station.

The SAM 200 processes the charge determined by communication between the high-pass system and the base station through the IR / RF communication module and the L2 / L7 integrated module 100 in an electronic payment form.

The SAM 200 stores, for example, a key set used for payment transactions and collection by a plurality of different electronic moneys, assigns respective IDs to a plurality of different electronic mortars, And stores a real mode keyset used for authentication in an actual transaction and a test mode keyset used for authentication in a test transaction.

In addition, the IDs are divided into a plurality of different card issuers classified by the electronic IDs as described above, and classified by the card issuer IDs so that transaction amount information with the IC card for non- / RTI >

As shown in FIG. 2, the SAM 200 is configured to support up to 12 Purge Secure Application Modules (PSAM) required for billing processing. PSAM is a standard that shows the physical characteristics and basic structure of the Secure Application Module (SAM) used in the non-contact electronic money terminal used in Korea. It is installed in the high pass system for the compatibility of domestic contactless electronic money. Is a standard for security application modules related to payment.

The synchronization signal unit 300 synchronizes signals transmitted and received between the high-pass system and the base station through the IR / RF communication module and the L2 and L7 integrated module 100. [

The Cell Plan control unit 400 divides a cell area in a cell-based wireless communication network

Frequency band, a module for processing an antenna switching synchronous signal for operating a DSRC communication cell plan using an IR / RF communication module, and a control function for state control.

In the multiple access method in high-speed wireless communication, the basic frequency is used equally in all the cells, the basic frequency band is divided into a plurality of subcarrier groups, the subcarrier group assignment is varied for each cell according to the radio channel environment, It can be applied differently.

In this case, the same frequency can be operated in all the cells, so that cell planning is easy, and inter-cell interference is minimized, thereby maximizing the frequency reuse efficiency.

In addition, the data transmission rate in the forward link can be optimally changed according to the value of the signal-to-interference ratio measured by the base station, thereby providing the maximum throughput in the cell, and the subcarrier group and the adaptive modulation / The distances can be expanded and the efficiency of power amplification can be improved.

As described above, according to the present invention, the data transmission time that has been consumed due to different communication methods is eliminated, and only authentication (SAM) required for billing processing is processed by internal communication. In order to solve high- It is possible to simultaneously process BST, GET, DEBIT, and SET by integrating IR / RF antenna and communication layers L2 and L7 into one MCU.

In the case of the IR / RF communication module, for example, L7 is set to 10 to 5 for each of the five RF modules which are individually configured for each lane, and the IR module is set to 10 to 5 for each lane. By avoiding the transmission time, data bottleneck is prevented and high-speed data processing is possible. That is, by reducing the number of L7s for the number of lanes per a lane, data interferences can be prevented and high-speed data processing becomes possible.

With this configuration, the communication speed of the L7-SAM section can be improved from the existing 4Mbps to 20Mbps, so that the optimal communication accuracy can be realized.

That is, in the conventional MCU, an IRCU (Infrared Ray Control Unit) for IR communication and an RFCU (Radio Frequency Control Unit) for RF communication are separately constituted. A separate SAM is configured for electronic payment, (Central Control Unit), so that a problem such as a data bottleneck phenomenon and a communication inversion phenomenon frequently occurs between the devices, thereby causing a problem that normal communication and charging are not performed frequently. However, the present invention has solved this problem .

6 shows an integrated MCU having a data duplication processing structure.

As shown in FIG. 6, up to twelve pieces of information of the IR / RF communication module, the L2 and L7 integrated module 100 and the payment authentication (PSAM) are configured to be capable of duplication processing under the active-active do.

Referring to FIG. 6, a transmitter and a receiver, which are compatible with each other, can be configured to transmit and receive data between the MCU-A 500 and the MCU- B 600 and the signal transmitted from the base station are configured to be capable of dual transmission / reception with respect to the MCU-A 500 and the MCU-B 600 via a plurality of IF / RF antennas.

6, the MCU of the present invention includes a plurality of VDAs (image distribution), VDUs (voice data), IPUs (execution processors), and environments via the MCU-A 500 and the MCU- Control, power supply, and the like.

According to such a redundancy configuration, when a malfunction occurs, the switching can be performed quickly without having to initialize the device or transfer the information separately.

An embodiment of an IR / RF communication module, a LAYER module and a SAM integrated MCU system has been described. The above described embodiments illustrate some of the many concrete embodiments that illustrate the principles described herein. Thus, using the embodiments of the present invention, those skilled in the art will be able to readily implement many different arrangements within the scope defined by the claims of the present invention.

10: IF / RF antenna 20: TX Buff
30: RX Buff 40: Manchester Encoding
50: Manchaster Decoding 60: SCRAMBLE Encoder
70: SCRAMBLE Dncoder 80: LLC
90: SCRAMBLE KEY 100: L2, L7 integrated module
200: SAM 300: synchronization signal unit
400: Cell Plan control unit 500: MCU-A
600: MCU-B

Claims (6)

An infrared ray (IR) / radio frequency (RF) communication module;
An L2 and L7 layer integrated module for transmitting signals transmitted and received between the high pass system and the base station through the IR / RF communication module;
A SAM (Secure Application Module) for processing the charges obtained according to the information processed through the IR / RF communication of the L2 and L7 layer integrated modules by electronic payment by internal communication;
A synchronization signal unit for synchronizing signals associated with the IR / RF communication of the L2 and L7 integrated layer modules; And
And a Cell Plan control unit for controlling an antenna for IR / RF communication of the L2 and L7 integrated layer modules,
The Cell Plan control unit
An IR / RF communication module, which is composed of a module for antenna switching synchronous signal processing for operating a DSRC (Dedicated Short Range Communications) cell plan through an IR / RF communication module and has a control function for antenna state control, Module and SAM integrated MCU system. delete The method according to claim 1,
The IR / RF communication module
A TX (Transmitter) / RX (Receiver) buffer module having a buffer function for storing a data bit stream received from an antenna; And
An IR / RF communication module, a LAYER module and a SAM integrated MCU system, wherein a scramble encoder and a decoder are configured for Manchester encoding and decoding processing. The method according to claim 1,
The SAM
(IR) / RF communication module, a LAYER module, and a SAM-integrated MCU system that supports up to 12 Purge Secure Application Modules (PSAM) required for charging processing. The method as claimed in claim 1, wherein the data duplication process is performed by an active-active (active-activation) structure for up to 12 pieces of information of IR / RF communication module, L2 and L7 integrated module and payment authentication / RF communication module, LAYER module and SAM integrated MCU system. The method according to claim 1,
The MCU
An IR / RF communication module, a LAYER module, and a SAM integrated type MCU system, which are configured to simultaneously perform VDA (video distribution), VDU (voice processing), IPU (execution control)

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