KR20100136862A - Electronic toll collection system wireless device and method thereof - Google Patents

Electronic toll collection system wireless device and method thereof Download PDF

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Publication number
KR20100136862A
KR20100136862A KR1020090055210A KR20090055210A KR20100136862A KR 20100136862 A KR20100136862 A KR 20100136862A KR 1020090055210 A KR1020090055210 A KR 1020090055210A KR 20090055210 A KR20090055210 A KR 20090055210A KR 20100136862 A KR20100136862 A KR 20100136862A
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KR
South Korea
Prior art keywords
operation state
wireless
unit
modem
signal
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KR1020090055210A
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Korean (ko)
Inventor
오재환
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서울통신기술 주식회사
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Priority to KR1020090055210A priority Critical patent/KR20100136862A/en
Publication of KR20100136862A publication Critical patent/KR20100136862A/en

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

Disclosed are a wireless transmitting / receiving apparatus and a method of an automatic toll collection system (ETCS). The present invention relates to an apparatus and method for transmitting and receiving wireless data to and from a wireless terminal using only a wireless transceiver that is determined to be in normal operation by periodically monitoring the operation of the wireless transceiver.

Description

Electronic Toll Collection System wireless device and method thereof {Electronic Toll Collection System wireless device and method}

The present invention relates to a wireless transceiver for transmitting and receiving wireless data with a terminal in an automatic toll collection system (ETCS) and a method thereof, and more specifically, to a wireless transceiver periodically using a plurality of wireless transceivers An apparatus and method for transmitting and receiving wireless data to and from a terminal through a wireless transceiver that performs normal operation by monitoring an operation state and deactivating an operation of a wireless transceiver that is abnormally operated.

Conventionally, the radio frequency control unit (RFCU) transmits different data to two antennas, and each antenna transfers wireless data by time switching.

However, in the related art, when one antenna fails in two antennas and thus cannot transmit or receive wireless data, the wireless data transmitted through the failed antenna is lost and communication time is wasted as much as the time of using the failed antenna.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an apparatus and method for transmitting and receiving wireless data to and from a wireless terminal using only a wireless transceiver that performs normal operation by periodically monitoring a state of a plurality of wireless transmitters in order to solve the conventional problems.

Other objects of the present invention will be readily understood through the following description of the embodiments.

According to an aspect of the present invention, in a wireless transceiver of an automatic toll collection system (ETCS), an operation state response signal is generated in response to an operation state monitoring signal, and wireless data is transmitted to the terminal by the operation selection signal. A plurality of wireless transceivers to perform the operation of transmitting and receiving the operation state monitoring signal and the operation state monitoring and the modem control unit and the modem control signal to generate a modem control signal and the operation selection signal according to the operation state response signal. Accordingly, there is provided a wireless transceiver of an automatic toll collection system comprising a modem unit for outputting data to a wireless transceiver.

Here, each of the plurality of radio transceivers is an RF module unit for converting the data input from the modem unit into the radio data, an antenna unit for transmitting and receiving the radio data with the terminal, and the operation state response to the operation state signal. It may be characterized by including an operation state response generator for generating a signal.

The operation state response signal may be a signal including state information on whether the operation of the RF module unit, the antenna unit, or the operation state response generator is normal or abnormal.

Here, the operation state monitoring and modem control unit is configured to include a memory for monitoring the operation of the wireless transceiver and the program control unit and a microprocessor for controlling the wireless transceiver and the modem unit according to the program. It may be characterized by.

Herein, the operation state monitoring and modem control unit outputs the modem control signal to the modem unit to control the operation of the modem unit, and transmits the operation state monitoring signal and the operation selection signal to or directly from the modem unit. It may be characterized in that the output to any one of the wireless transceiver to control the operation of the wireless transceiver.

Herein, the modem control signal is a signal including information on the wireless transceiver which is operating normally, and the modem unit outputs the wireless data to the wireless transceiver selected by the modem control signal. Can be.

In addition, in the wireless data transmission / reception method of the automatic toll collection system (ETCS), the operation state monitoring and the modem controller periodically determine the operation state of each of the plurality of wireless transmission / reception units and the determination. And a second step of deactivating an operation of the wireless transceiver having an abnormal operation and controlling the modem to transmit and receive the wireless data with the terminal through the wireless transceiver which is operating normally. A wireless transmission and reception method is provided.

Here, the first step may include generating an operation state monitoring signal for monitoring the operation of the wireless transceiver and periodically outputting the operation state monitoring signal to each of the plurality of wireless transceivers and from each of the wireless transceivers. The method may further include determining an operating state of the wireless transceiver by receiving an operating state response signal in response to the operating state monitoring signal.

Here, the operation state response signal may be characterized by including the operation state information of each component of the wireless transceiver.

Here, each component of the wireless transceiver includes an RF module unit for converting input data into the wireless data, an antenna unit for transmitting and receiving the wireless data with the terminal and an operation state response generating unit for generating the operation state response signal. It may be characterized by.

The method may further include determining that an operation of the wireless transceiver corresponding to the case where the operation state response signal is not received for a predetermined time or longer is abnormal.

Here, after the determination, the second step generates a modem control signal for controlling the modem unit and an operation selection signal for activating the wireless transceiver in normal operation, and outputs the modem control signal to the modem unit and outputs the operation selection signal. May be output to the wireless transceiver.

Here, the modem control signal is a signal for controlling the overall operation of the modem unit, the modem unit may receive the modem control signal to operate and transmit the data only to the wireless transmission and reception unit in the normal operation selected. .

Here, the wireless transceiver may receive and receive data from the modem unit and convert the wireless data into the wireless data only when the operation selection signal is input.

Here, the operation state monitoring and modem control unit further comprises the step of performing the operation of controlling the switching operation of the plurality of radio transceivers by periodically determining the operation state of each of the plurality of radio transceivers. can do.

According to the present invention, since the modem unit is controlled to periodically monitor the plurality of radio transceivers and use only the radio transceivers in normal operation, there is an effect of preventing the loss of data through the radio transceivers in abnormal operation.

In addition, since the data is transmitted and received by performing the transfer function using only the wireless transceiver that is operating normally, there is an effect of using the communication time efficiently.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. The expressions such as the first and the second are only means for expressing the invention in more detail, and the invention is not limited to the above expressions. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the configuration of an automatic toll collection system using the present invention as an embodiment of the present invention.

The automatic toll collection system using the present invention may be composed of a wireless transceiver 10, an RFCU (lane base station) 20, and a wireless terminal 30 of the automatic toll collection system.

The radio transceiver 10 of the automatic toll collection system of the present invention receives data from the radio base station 20 in a conventional vehicle and transmits and receives radio data with the radio terminal 30 using a plurality of radio transceivers.

The wireless transmission and reception apparatus 10 of the automatic toll collection system of the present invention includes an operation state monitoring and modem control unit 100, a modem unit 200, and a plurality of wireless transmission and reception units 300_1 and 300_2.

The operation state monitoring and modem controller 100 monitors the operation of the wireless transceiver and performs a function of controlling the modem unit 200.

The modem unit 200 receives data from an RFCU (car radio base station) 20 and transmits data to a wireless transceiver selected from the plurality of radio transceivers 300_1 and 300_2 through an operation state monitoring and control of the modem controller 100. Output

The wireless transceiver 300_1 and 300_2 convert the data received from the modem unit 200 into wireless data through the operation state monitoring and the control of the modem controller 100 and transmit the converted data to the wireless terminal 30.

A detailed description of each component of the wireless transceiver 10 of the automatic toll collection system will be described with reference to FIGS. 2 and 3.

2 is a diagram showing the configuration of the operation state monitoring and modem control unit 100 as an embodiment of the present invention.

Operation state monitoring and modem control unit 100 of the present invention comprises a memory unit 110 and the control unit 120.

The memory 110 is where a program for monitoring the operation of the wireless transceiver and controlling the modem is stored. For example, the memory 110 refers to a semiconductor memory device or a hard disk.

The microprocessor 120 generates an operation state monitoring signal for monitoring the operation state of the wireless transceiver, and periodically outputs it to the plurality of wireless transceivers. In this case, the operation state monitoring signal may be generated according to the number of the plurality of wireless transceivers, or may generate one operation state monitoring signal and output the plurality of wireless transmission / receptions respectively.

In addition, the microprocessor 120 receives an operation state response signal including the operation state information of the wireless transceiver from the wireless transceiver to determine the operation of the wireless transceiver.

The microprocessor 120 controls the modem unit 200 and the wireless transceiver to normally perform a switching operation between the wireless transceivers when the wireless transceiver is operating normally as a result of the determination. If there is a wireless transceiver, the wireless transceiver that is in abnormal operation to disable and control the modem unit 200 to use only the wireless transceiver that is in normal operation.

To this end, the microprocessor 120 may generate a modem control signal and an operation selection signal and output them to the modem unit and the wireless transceiver.

The microprocessor 120 may directly transmit / receive an operation state monitoring signal and an operation state response signal with the wireless transceiver, and may indirectly transmit and receive through the modem unit 200.

The modem control signal is a signal for controlling the operation of the modem unit 200. The modem control signal is a signal for controlling the modem unit 200 to output data only to a wireless transceiver which is operating normally among the wireless transceivers. The signal is to activate the wireless transceiver in normal operation and the wireless transceiver in abnormal operation to deactivate.

3 is a diagram illustrating a configuration of a wireless transceiver as an embodiment of the present invention.

The wireless transceiver includes an RF module 310, an antenna 320, and an operation state response generator 330.

The RF module unit 310 performs a function of converting data input from the modem unit into wireless data.

The antenna unit 320 includes an antenna and performs a function of wirelessly transmitting and receiving wireless data with a wireless terminal.

The operation state response generation unit 330 periodically receives an operation state monitoring signal from the operation state monitoring and modem control unit 100, generates an operation state response signal including operation state information of the wireless transceiver, and generates an operation state monitoring and modem control unit. Output to (100).

Here, in the wireless transceiver, the operation state response generator 330 may exist as an independent component including a microprocessor, and the operation state monitoring signal may be provided without the operation state response generator 330 as a separate component. The RF module unit 310 and the antenna unit 320 may be directly input to the RF module unit 310 and the antenna unit 320, respectively, and may generate an operation state response signal corresponding to the input operation state monitoring signal.

4 is a flowchart illustrating a wireless transmission / reception method of an automatic toll collection system according to an embodiment of the present invention.

The operation state monitoring and modem control unit generates an operation state monitoring signal and periodically outputs it to the wireless transceiver (S410).

Here, the period refers to a period for checking whether the wireless transceiver performs normal operation before performing the transfer function during the normal transfer function. For example, it can be several seconds apart or tens to hours.

When the wireless transceiver receives the operation state monitoring signal, the wireless transceiver generates an operation state response signal including information on the operation state of each component of the wireless transceiver and transmits the operation state monitoring and the modem controller (S420).

The wireless transceiver includes an operation state response generation unit 330. When the operation state monitoring signal is received, the operation state response generation unit 330 transmits a control signal to each component of the wireless transmission / reception unit, thereby operating state for each component. Find out.

Thereafter, the operation state monitoring and modem control unit receives an operation state response signal to determine whether each of the plurality of wireless transmissions and receptions is operating normally (S430).

The method of determining the normal operation of the wireless transceiver is as follows.

The operation state monitoring and modem control unit may analyze the operation state response signal to determine an operation state of the wireless transceiver, and when the operation state response signal corresponding to the operation state monitoring signal is not received for a predetermined time, the operation state response signal may be determined. The wireless transceiver that did not receive it is determined to be abnormal.

The operation state monitoring and modem control unit deactivates the corresponding wireless transceiver when there is a wireless transceiver determined to be in an abnormal state (S440).

The operation state monitoring and modem control unit selects only the wireless transceiver that is determined to be in a normal state to perform a computational switching function, and controls the modem unit so as not to transmit data to the wireless transceiver that is determined to be abnormal (S440).

That is, only the wireless transceiver that is in normal operation is selected to control transmission and reception of data with the modem unit.

For example, when two wireless transceivers are present, if one wireless transceiver is determined to be in an abnormal state, the operation state monitoring and modem controller deactivates the wireless transceiver that is determined to be in an abnormal state and the other wireless transceiver is determined to be in a normal operation state. By generating a selection control signal and a modem control signal for selecting only, the modem unit controls to transmit and receive data only with a wireless transceiver unit in which the normal operation is performed.

Here, the selection control signal is a signal for enabling the operation of the wireless transceiver that performs the settlement operation. Only the wireless transceiver to which the selection control signal is input is activated to perform normal operation, or the selection control signal is disabled. The wireless transceiver to which the selection control signal is input as a) signal may be deactivated so as not to operate.

Here, the modem control signal is a signal for controlling the overall operation of the modem unit, and the modem unit receives the modem control signal and operates to transmit data only to the selected wireless transceiver which is operating normally.

Although the above has been described with reference to embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

1 is a diagram showing the configuration of an automatic toll collection system using the present invention as an embodiment of the present invention.

2 is a diagram showing the configuration of the operation state monitoring and modem control unit 100 as an embodiment of the present invention.

3 is a diagram illustrating a configuration of a wireless transceiver as an embodiment of the present invention.

4 is a flowchart illustrating a wireless transmission / reception method of an automatic toll collection system according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: wireless transceiver

20: Radio Frequency Control Unit (RFCU) by car

30: wireless terminal

100; Operation status monitoring and modem control

110: memory

120 microprocessor

200: modem unit

300-1, 300-2: wireless transceiver

310: RF module unit

320: antenna unit

330: operation state response generator

Claims (15)

In the wireless transceiver of the automatic toll collection system (ETCS), A plurality of wireless transceivers configured to generate an operation state response signal in response to the operation state monitoring signal and to transmit and receive wireless data with the terminal according to the operation selection signal; An operation state monitoring and modem control unit generating the operation state monitoring signal and generating a modem control signal and the operation selection signal according to the operation state response signal; And And a modem unit for outputting data to a wireless transceiver according to the modem control signal. The method of claim 1, The plurality of radio transceiver unit RF module unit for converting the data input from the modem unit to the radio data respectively; An antenna unit for transmitting and receiving the wireless data with the terminal; And And an operation state response generation unit for generating the operation state response signal with respect to the operation state signal. The method of claim 2, And the operation state response signal is a signal including state information on whether the operation of the RF module unit or the antenna unit or the operation state response generator is normal or abnormal. The method of claim 1, The operation state monitoring and modem control unit includes a memory for monitoring the operation of the wireless transceiver and a program for controlling the modem unit; And And a microprocessor for controlling the wireless transceiver and the modem unit in accordance with the program. The method of claim 1, The operation state monitoring and modem control unit outputs the modem control signal to the modem unit to control the operation of the modem unit, and transmits the operation state monitoring signal and the operation selection signal through the modem unit or directly among the plurality of wireless transceivers. The wireless transceiver of the automatic toll collection system, characterized in that for outputting to any one of the wireless transceiver to control the operation of the wireless transceiver. The method of claim 1, The modem control signal is a signal including information on the wireless transceiver which is operating normally, and the modem unit outputs the wireless data to the wireless transceiver selected by the modem control signal. Wireless transceiver of the collection system. In the wireless data transmission and reception method of the automatic toll collection system (ETCS), The operation state monitoring and the modem control unit periodically step of determining the operation state of each of the plurality of wireless transceivers; And And after the determination, deactivate an operation of the wireless transceiver having an abnormal operation and perform a second step of controlling the modem to transmit and receive the wireless data with the terminal through the wireless transceiver which is operating normally. Wireless transmission and reception method of an automatic toll collection system. The method of claim 7, wherein The first step may include generating an operation state monitoring signal for monitoring the operation of the wireless transceiver; Periodically outputting the operation state monitoring signal to each of a plurality of wireless transceivers; And And receiving an operation state response signal in response to the operation state monitoring signal from each of the radio transceivers to determine an operation state of the radio transceiver. The method of claim 8, And the operation state response signal includes operation state information of each component of the wireless transmission / reception unit. 10. The method of claim 9, Each component of the wireless transceiver includes an RF module unit for converting input data into the wireless data, an antenna unit for transmitting and receiving the wireless data with the terminal, and an operation state response generating unit for generating the operation state response signal. Wireless transmission and reception method of an automatic toll collection system. The method of claim 8, And determining that an operation of the wireless transceiver corresponding to the case where the operation state response signal is not received for a predetermined time or longer is abnormal. The method of claim 7, wherein In the second step, after the determination, a modem control signal for controlling the modem unit and an operation selection signal for activating the wireless transmission / reception unit in normal operation are generated so that the modem control signal is output to the modem unit and the operation selection signal is normal. A wireless transmission / reception method for an automatic toll collection system, characterized by outputting the wireless transmission / reception unit in operation. The method of claim 12, The modem control signal is a signal that controls the overall operation of the modem unit, and the modem unit receives the modem control signal and operates to transmit data only to the wireless transceiver which is operating normally selected. Wireless transmission and reception method. The method of claim 12, The wireless transmission / reception unit receives data from the modem unit and converts the wireless data into the wireless data only when the operation selection signal is input, thereby transmitting and receiving the wireless data with the terminal. How to send and receive. The method of claim 7, wherein The operation state monitoring and modem control unit further comprises the step of performing the operation of controlling the switching operation of the plurality of radio transceivers by periodically determining the operation state of each of the plurality of radio transceivers. Wireless transmission / reception method of toll collection system.
KR1020090055210A 2009-06-19 2009-06-19 Electronic toll collection system wireless device and method thereof KR20100136862A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160016453A (en) 2014-08-05 2016-02-15 한화테크윈 주식회사 Apparatus and method for fast auto-focusing in low-luminance
KR102189294B1 (en) * 2020-04-08 2020-12-09 한화시스템 주식회사 Roadside equipment and operating method for toll collection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160016453A (en) 2014-08-05 2016-02-15 한화테크윈 주식회사 Apparatus and method for fast auto-focusing in low-luminance
KR102189294B1 (en) * 2020-04-08 2020-12-09 한화시스템 주식회사 Roadside equipment and operating method for toll collection system

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