CN104318633A - OBU structure of ETC system based on UHF RFID - Google Patents
OBU structure of ETC system based on UHF RFID Download PDFInfo
- Publication number
- CN104318633A CN104318633A CN201410549040.1A CN201410549040A CN104318633A CN 104318633 A CN104318633 A CN 104318633A CN 201410549040 A CN201410549040 A CN 201410549040A CN 104318633 A CN104318633 A CN 104318633A
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- CN
- China
- Prior art keywords
- obu
- uhf rfid
- rfid chip
- rsu
- mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0715—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including means to regulate power transfer to the integrated circuit
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Theoretical Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides an OBU structure of an ETC system based on UHF RFID. The OBU structure is composed of two parts, namely a passive unit and an active unit, wherein the passive unit comprises a UHF RFID chip and an antenna; the active unit comprises an MCU, a battery, an SAM card and a bank card payment module; the UHF RFID chip is provided with a communication interface and a power supply awakening output interface; the RFID chip is connected with the MCU by use of the communication interface; the RFID chip is activated by the energy electromagnetic wave which is emitted by an RSU and received by the antenna to communicate with the RSU; when the UHF RFID chip receives a command of turning on the OBU from the RSU, the UHF RFID chip outputs a signal from the power supply awakening output interface to activate a battery in the OBU to supply power for the active part. The invention provides a new OBU structure, wherein the radio-frequency communication is completed by use of a UHF RFID passive tag, and the OBU is turned on and awakened to perform communication higher in security certificate level only when the tag receives a related command; as the UHF RFID functions in a passive mode and the OBU does not consume power at all during sleep, the service life of the battery is prolonged, the requirement of the OBU on the capacity of the battery is reduced and the cost is reduced.
Description
Technical field
The present invention relates to electronic information technical field, particularly relate to ETC(no-stop charging system).
Background technology
In no-stop charging system ETC, be made up of two significant element: OBU(board units), RSU(roadside unit).The active mode that existing OBU adopts, when not communicating with RSU, OBU is in dormant state.When OBU receives the wake-up signal that RSU sends, OBU is waken up, and then communicates with RSU.
There are two shortcomings in existing OBU: (1), even if when being in dormant state, its radio frequency reception part, also in work, needs power consumption, the power consumption of the circuit of this part just, cause the battery needing configuration capacity enough large, therefore bring battery life short, the problem that holistic cost is high.(2) process need be waken up due to OBU is taken time, so the recognition speed that RSU reads OBU is slow, can not be used for the scene of high-speed recognition, can not meets the recognition requirement to electronic license plate on highway.
Summary of the invention
In order to overcome the problems referred to above that traditional no-stop charging system exists, the invention provides a kind of OBU structure of the ETC system based on UHF RFID.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of OBU structure of the ETC system based on UHF RFID, be made up of parasitic element and active cell two parts, parasitic element comprises UHF RFID chip and antenna, active cell comprises MCU and battery, UHF RFID chip is provided with communication interface and power supply wakes output interface up, RFID chip is connected by communication interface with MCU, the energy electromagnetic ripple that the RSU that RFID chip is received by antenna sends is activated and communicates with RSU, after UHF RFID chip receives the order of unlatching OBU power supply of RSU, the battery waken up output interface output signal unlatching OBU from power supply is powered to active part.
Described active cell also comprises SAM card, and SAM card is connected with MCU, and MCU is encrypted certification by SAM card to the information between RSU.
Described active cell also comprises bank card payment module, and bank card payment module connects MCU.
Described communication interface is I
2c communication interface or UART communication interface.
The present invention proposes a kind of new OBU structure, wherein radio communication is completed by UHF RFID passive label, and when the power supply by just opening OBU during related command received by label, wake OBU up and carry out the higher communication of safety certification rank, because UHF RFID works in the passive mode, OBU not power consumption completely when dormancy, so substantially prolongs the life-span of battery, reduce the needs of OBU to battery capacity, thus also reduce cost.
Accompanying drawing explanation
Fig. 1 is the OBU structure principle chart of the ETC system that the present invention is based on UHF RFID.
Embodiment
The OBU structural principle of the ETC system based on UHF RFID of the present invention as shown in Figure 1, be made up of parasitic element and active cell two parts, parasitic element comprises UHF RFID chip and antenna, UHF RFID is typical passive RF electronic tag, without the need to Power supply, be responsible for carrying out radio communication with RSU, take on the role of passive electronic car plate simultaneously.Active cell comprises MCU, battery, SAM card and bank card payment module, UHF RFID chip is provided with communication interface and power supply wakes output interface up, RFID chip is connected by communication interface with MCU, UHF RFID chip receives by antenna the energy electromagnetic ripple that RSU sends, when energy reaches certain degree, UHF RFID chip is activated, and namely starts from RSU and communicates; RFID chip and the MCU(single-chip microcomputer in OBU) be connected by communication interface, the MCU namely in OBU is communicated with RSU by RFID chip, and communication interface is I
2c communication interface can also be other serial communication, as UART.After UHF RFID chip receives the order of unlatching OBU power supply of RSU, wake output interface up from power supply and export the battery that level signal opens OBU and power to active part.SAM card is connected with MCU, and MCU is encrypted certification by SAM card to the information between RSU, and namely OUB and RSU can carry out high level information security certification by SAM card.
RFID chip is operated in passive states, does not namely need powered battery.Can also write the information of vehicles such as such as license plate number in chip, when not needing the safety certification of carrying out higher level, OBU can carry out passive, high-speed communication with RSU, and this situation is particularly suitable for the application scenarios of electronic license plate.Active module embedded therein is in complete off-position usually, not electric consumption.Only have after RFID chip exports a power supply wake-up signal, MCU is just powered on and is waken up, and passes through I
2c communicates, and MCU is encrypted certification by SAM card to the information between RSU, and level of security can reach the safety standard of bank paying process.MCU extracts bank card information by bank paying module, and can read contact bank IC card, also can read contactless IC card, bank card can be contact, also can be contactless.
The present invention is described by embodiment, and those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various change or equivalence replacement to these characteristic sum embodiments.In addition, under the teachings of the present invention, can modify to adapt to concrete situation and material to these characteristic sum embodiments and can not the spirit and scope of the present invention be departed from.Therefore, the present invention is not by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs to protection scope of the present invention.
Claims (4)
1. the OBU structure based on the ETC system of UHF RFID, it is characterized in that: be made up of parasitic element and active cell two parts, parasitic element comprises UHF RFID chip and antenna, active cell comprises MCU and battery, UHF RFID chip is provided with communication interface and power supply wakes output interface up, RFID chip is connected by communication interface with MCU, the energy electromagnetic ripple that the RSU that RFID chip is received by antenna sends is activated and communicates with RSU, after UHF RFID chip receives the order of unlatching OBU power supply of RSU, the battery waken up output interface output signal unlatching OBU from power supply is powered to active part.
2. the OBU structure of a kind of ETC system based on UHF RFID according to claim 1, it is characterized in that: described active cell also comprises SAM card, SAM card is connected with MCU, and MCU is encrypted certification by SAM card to the information between RSU.
3. the OBU structure of a kind of ETC system based on UHF RFID according to claim 1, is characterized in that: described active cell also comprises bank card payment module, and bank card payment module connects MCU.
4. the OBU structure of a kind of ETC system based on UHF RFID according to claim 2, is characterized in that: described communication interface is I
2c communication interface or UART communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549040.1A CN104318633A (en) | 2014-10-17 | 2014-10-17 | OBU structure of ETC system based on UHF RFID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549040.1A CN104318633A (en) | 2014-10-17 | 2014-10-17 | OBU structure of ETC system based on UHF RFID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104318633A true CN104318633A (en) | 2015-01-28 |
Family
ID=52373858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410549040.1A Pending CN104318633A (en) | 2014-10-17 | 2014-10-17 | OBU structure of ETC system based on UHF RFID |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104318633A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678850A (en) * | 2016-03-31 | 2016-06-15 | 上海捷赴达电子科技有限公司 | On board unit (OBU) device |
| CN108305338A (en) * | 2018-02-13 | 2018-07-20 | 公安部交通管理科学研究所 | A kind of non-stop charging method and system |
| CN110232748A (en) * | 2019-06-17 | 2019-09-13 | 深圳成谷科技有限公司 | A kind of vehicle-mounted high speed charge auxiliary device and vehicle, method |
| CN112738763A (en) * | 2020-12-25 | 2021-04-30 | 高新兴智联科技有限公司 | V2X road side equipment based on automobile electronic identification and vehicle identification method |
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| CN201897808U (en) * | 2010-11-23 | 2011-07-13 | 成都科鸿凌泰自动识别技术有限公司 | Novel active RFID (radio frequency identification device) double-frequency combination card |
| CN201975807U (en) * | 2010-12-29 | 2011-09-14 | 北京握奇数据***有限公司 | Semi-passive vehicle-mounted terminal |
| US20120256733A1 (en) * | 2009-03-13 | 2012-10-11 | Carr William N | Rfid power control and monitoring system |
| CN202586946U (en) * | 2012-05-09 | 2012-12-05 | 航天信息股份有限公司 | Receiving device of integrated detector and vehicle-mounted device |
| CN203204681U (en) * | 2013-04-28 | 2013-09-18 | 中车信科技有限公司 | Payment system based on RFID technology |
| CN103413166A (en) * | 2013-06-27 | 2013-11-27 | 天津大学 | Automatic switching power supply system for semi active RFID sensor tag |
| CN103729895A (en) * | 2013-09-24 | 2014-04-16 | 深圳市金溢科技有限公司 | Method, device and system for awakening electronic tag |
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2014
- 2014-10-17 CN CN201410549040.1A patent/CN104318633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120256733A1 (en) * | 2009-03-13 | 2012-10-11 | Carr William N | Rfid power control and monitoring system |
| CN201897808U (en) * | 2010-11-23 | 2011-07-13 | 成都科鸿凌泰自动识别技术有限公司 | Novel active RFID (radio frequency identification device) double-frequency combination card |
| CN201975807U (en) * | 2010-12-29 | 2011-09-14 | 北京握奇数据***有限公司 | Semi-passive vehicle-mounted terminal |
| CN202586946U (en) * | 2012-05-09 | 2012-12-05 | 航天信息股份有限公司 | Receiving device of integrated detector and vehicle-mounted device |
| CN203204681U (en) * | 2013-04-28 | 2013-09-18 | 中车信科技有限公司 | Payment system based on RFID technology |
| CN103413166A (en) * | 2013-06-27 | 2013-11-27 | 天津大学 | Automatic switching power supply system for semi active RFID sensor tag |
| CN103729895A (en) * | 2013-09-24 | 2014-04-16 | 深圳市金溢科技有限公司 | Method, device and system for awakening electronic tag |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678850A (en) * | 2016-03-31 | 2016-06-15 | 上海捷赴达电子科技有限公司 | On board unit (OBU) device |
| CN108305338A (en) * | 2018-02-13 | 2018-07-20 | 公安部交通管理科学研究所 | A kind of non-stop charging method and system |
| CN110232748A (en) * | 2019-06-17 | 2019-09-13 | 深圳成谷科技有限公司 | A kind of vehicle-mounted high speed charge auxiliary device and vehicle, method |
| CN112738763A (en) * | 2020-12-25 | 2021-04-30 | 高新兴智联科技有限公司 | V2X road side equipment based on automobile electronic identification and vehicle identification method |
| CN112738763B (en) * | 2020-12-25 | 2023-03-14 | 高新兴智联科技有限公司 | V2X road side equipment based on automobile electronic identification and vehicle identification method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150128 |