CN110766815A - Integrated monolithic formula mobile unit - Google Patents

Integrated monolithic formula mobile unit Download PDF

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Publication number
CN110766815A
CN110766815A CN201810848270.6A CN201810848270A CN110766815A CN 110766815 A CN110766815 A CN 110766815A CN 201810848270 A CN201810848270 A CN 201810848270A CN 110766815 A CN110766815 A CN 110766815A
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China
Prior art keywords
module
card
vehicle
main control
control chip
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CN201810848270.6A
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Chinese (zh)
Inventor
桂杰
邱新豪
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Beijing Juli Science and Technology Co Ltd
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Beijing Juli Science and Technology Co Ltd
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Priority to CN201810848270.6A priority Critical patent/CN110766815A/en
Publication of CN110766815A publication Critical patent/CN110766815A/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/085—Payment architectures involving remote charge determination or related payment systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/352—Contactless payments by cards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

The invention provides integrated single-chip vehicle-mounted equipment, which is provided with a power supply module, a main control chip, a first communication module and a dual-interface card module, wherein the power supply module is connected with the main control chip and the first communication module; when the mobile phone approaches the handheld card reading device, the antenna in the dual-interface card module is coupled to obtain electric energy, the connection with the handheld card reading device is established, corresponding operation is executed on the user card in the dual-interface card module according to an operation instruction sent by the handheld card reading device, and when the mobile phone leaves the handheld card reading device, the dual-interface card module generates an interrupt signal to trigger the main control chip to read the information of the user card again. The user card chip is integrated in the vehicle-mounted equipment, when the transaction with the ETC system fails, the handheld card reading equipment is used for communicating with the vehicle-mounted equipment to complete the transaction, the size of the vehicle-mounted equipment can be further reduced, the user experience is improved, and the driving risk is reduced.

Description

Integrated monolithic formula mobile unit
Technical Field
The embodiment of the invention relates to the technical field of road toll collection, in particular to integrated single-chip vehicle-mounted equipment.
Background
With the development of the industry, the number of vehicle-mounted devices sold through a bank channel is large at present, and the proportion of used accounting cards is higher and higher.
At present, in the field of high-speed Electronic Toll Collection (ETC) of the domestic ETC system, a double-piece type (On Board Unit, OBU) vehicle-mounted device is used, namely a double-piece type Electronic tag, the double-piece type Electronic tag supports the read-write function of a user card, and the user card is used as a medium for non-cash payment and is inserted into the Electronic tag. The two-piece electronic tag is an electronic tag which has a 5.8GHz wake-up function, a transceiving function, a Dedicated Short Range Communications (DSRC) protocol analysis function and a security module (which can perform encryption and decryption verification and store vehicle information); the second piece is a separate dual-interface user card inserted into the electronic tag, and the user card contains a wallet file for deduction. When the vehicle runs to an ETC lane, the electronic tag is communicated with a lane Road Side Unit (RSU), connection is established, safety identification is carried out, vehicle information is obtained, and the like, and then the lane RSU sends a DSRC channel instruction to carry out consumption initialization, deduction and the like on a double-interface user card inserted into the electronic tag, so that the purpose of charging is achieved.
However, when the transaction fails through the ETC, the user card needs to be pulled out to swipe the card on the card reader of the toll station, so as to realize fee deduction, which causes inconvenience in the use process of the user; moreover, the size of the electronic tag is limited by the size of the user card, and the larger size can interfere with the sight of the user during driving, so that the driving risk is increased.
Disclosure of Invention
The embodiment of the invention provides an integrated monolithic vehicle-mounted device, which is used for solving the problems that when ETC passes at present, if a transaction fails, a user card needs to be pulled out to swipe the card on a card reader of a toll station to complete fee deduction, so that the user is inconvenient to use, and the size of an electronic tag is limited by the size of the user card, so that the driving sight of the user is influenced by the large size of the electronic tag.
The embodiment of the invention provides an integrated single-chip type vehicle-mounted device, which comprises:
the device comprises a shell, a power supply module, a main control chip, a first communication module and a dual-interface card module;
the power supply module is respectively connected with the main control chip and the first communication module, and is used for supplying power to the main control chip and the first communication module;
the main control chip is respectively connected with the first communication module and the double-interface card module to form a vehicle-mounted equipment body; the vehicle-mounted equipment body is arranged inside the shell;
when the dual-interface card module approaches to the handheld card reading equipment, electric energy is obtained through antenna coupling in the dual-interface card module, and connection is established with the handheld card reading equipment; the double-interface card module executes corresponding operation on the user card in the double-interface card module according to the operation instruction sent by the handheld card reading equipment;
when the handheld card reading device finishes communication, the dual-interface card module generates an interrupt signal to trigger the main control chip to read the information of the user card again.
Further, the dual-interface card module comprises a user card chip and the antenna, wherein the user card chip is respectively connected with the antenna and the main control chip; the user card chip stores the information of the user card.
In one embodiment, the integrated monolithic in-vehicle device further comprises:
the wake-up interrupt circuit is connected between the user card chip and the main control chip and comprises a resistor and an NPN type triode;
the base level of the NPN type triode is connected with the user card chip, the collector electrode of the NPN type triode is connected with the power supply module through the resistor, and the emitter electrode of the NPN type triode is grounded; and the collector of the NPN type triode is also connected with an interrupt pin of the main control chip.
In a specific implementation manner of any one of the above schemes, the integrated monolithic vehicle-mounted device further includes: the second communication module is connected with the power supply module, and the power supply module is used for supplying power to the second communication module;
the second communication module is also connected with the main control chip and is used for data interaction with other electronic equipment.
In a specific embodiment, the dual interface card module is further configured to receive a channel instruction sent by the main control chip, where the channel instruction is used to instruct to update information of the user card.
Optionally, the antenna includes: at least one capacitor and a coil; the at least one capacitor is connected with two ends of the coil to form a loop; and if the number of the capacitors is multiple, the capacitors are connected in parallel and then connected with two ends of the coil.
In one embodiment, the integrated monolithic in-vehicle device further comprises: the embedded safety control module ESAM is connected with the power supply module, and the power supply module is used for supplying power to the ESAM;
the ESAM is further connected with the main control chip and used for achieving key authentication and storing issuing information, and the issuing information comprises vehicle information, vehicle owner information and vehicle ciphertext.
In one embodiment, the integrated monolithic in-vehicle device further comprises: the Bluetooth module is connected with the power supply module, and the power supply module is used for supplying power to the Bluetooth module;
the Bluetooth module is also connected with the main control chip and is used for communicating with terminal equipment.
In a specific embodiment, the first communication module is a fixed-frequency microwave communication module, and the second communication module is a fixed-frequency microwave communication module.
Optionally, the first communication module is configured to communicate with a road side unit RSU at a frequency of 5.8GHz, so as to implement a transaction;
the first communication module is also used for communicating with desktop publishing equipment at the frequency of 5.8GHz to realize publishing.
The embodiment of the invention provides integrated single-chip vehicle-mounted equipment, which is provided with a power supply module, a main control chip, a first communication module and a double-interface card module, wherein the power supply module is connected with the main control chip and the first communication module, the main control chip is connected with the first communication module and the double-interface card module to form a vehicle-mounted equipment body, the vehicle-mounted equipment body is arranged inside a shell, when the vehicle-mounted equipment body is close to a handheld card reading device, an antenna in the double-interface card module is coupled to obtain electric energy and is connected with the handheld card reading device, the double-interface card module executes corresponding operation on a user card in the double-interface card module according to an operation instruction sent by the handheld card reading device, and when the vehicle-mounted equipment body is away from the handheld card reading device, the double-interface card module generates an interrupt signal to trigger the. When the transaction of the ETC system fails, the handheld card reading device can be used for communicating with the vehicle-mounted device to complete the transaction, and the user card chip is integrated in the vehicle-mounted device, so that the size of the vehicle-mounted device can be further reduced, the user experience is improved, and the driving risk is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a first embodiment of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an antenna circuit of the dual interface card module;
fig. 4 is a schematic diagram of a wake-up interrupt circuit of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third embodiment of an integrated monolithic vehicle-mounted device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the rapid development of ETC, the double-piece electronic tag has the following defects:
first, miniaturization is difficult. Since the dual-interface user card conforms to the ISO7816-1 standard card size, the size is 85.6mm long and 53.98mm wide. The size of the electronic tag has been limited by the size of the user card inserted therein, and neither the length nor the width of the electronic tag can be smaller than the IC card itself, thus preventing further miniaturization of the electronic tag.
And secondly, the power consumption is large. Because the independent user card only has a contact in one direction, in order to improve user experience, the user card is read and written by using a non-contact card reading mode in the industry at present, the power consumption of the non-contact card reading mode is far greater than that of the contact card reading, the power consumption of the non-contact card reading is usually greater than 30 milliamperes, the power consumption of the contact card reading is usually less than 5 milliamperes, and the influence on the service life of a battery is great for battery-powered equipment.
Thirdly, the cost is high. Because the shell and the structure need to be designed with card slots, the circuit needs to be designed with card in-place switches, the circuit needs to be designed with non-contact card reading circuits and the like, and the cost is higher.
To overcome the above problems, the present invention provides an integrated monolithic onboard device, which is described in detail with reference to several embodiments.
First, the terms of the industry appearing in the following examples are explained as follows:
ETC: electronic Toll Collection, is on the Toll type highway, the Toll station passes the special short-range communication between roadside antenna and the on-vehicle Electronic label, under the circumstances that does not need driver's parking and other Toll collector to take any operation, accomplishes a full-automatic charging system of the processing procedure of charging.
The OBU is an On Board Unit, and the vehicle-mounted equipment, namely the electronic tag, is a microwave device which communicates with the RSU by adopting a special short-range communication technology.
The RSU is a Road Side Unit, a roadside Unit, and is a device which is arranged in an ETC system, is installed at the roadside, and is communicated with a vehicle-mounted Unit by adopting a special short-range communication technology to realize vehicle identity recognition and electronic charging.
A user card: a CPU card with payment capability in a road toll system. The card is divided into a charge card and a stored value card according to application and an issuing method. Is a medium for cashless payment. The electronic tag can be inserted into an electronic tag for use, and can also be pulled out for use on card reading equipment independently.
And (4) accounting card: the user prestores a certain amount of money in the account, the card is recorded with a user ID and stored value information, the user can use the card to pay directly on a toll lane, and the consumption amount of the user is deducted from the card and simultaneously deducted from the account prestored by the user. I.e. an information medium used in a cashless fee where the card contains information on the funds and the amount of consumption of the user is directly deducted from the amount of stored value in the card when in use.
Storing value card: the card is provided with basic information such as a user ID, and the user can use the basic information to make a forward payment in a toll lane, and the amount of money consumed by the user is deducted from an account pre-paid by the user (pre-paid mode) or is settled later (post-paid mode). That is, only the user account information is recorded in the card, and the card does not contain fund information. When the system is used, the system automatically records the user account information and regularly settles with the user according to the agreement to use the information medium for non-cash charging.
Fig. 1 is a schematic structural diagram of a first embodiment of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention, and as shown in fig. 1, the integrated monolithic vehicle-mounted device includes: the device comprises a shell 11, a power supply module 12, a main control chip 14, a first communication module 13 and a dual-interface card module 15;
the power module 12 is electrically connected to the main control chip 14 and the first communication module 13, respectively, and the power module 12 is configured to supply power to the main control chip 14 and the first communication module 13; the main control chip 14 is electrically connected with the first communication module 13 and the dual-interface card module 15 respectively to form a vehicle-mounted device body; the vehicle-mounted equipment body is arranged inside the shell 11; the main control chip 14 is connected to the dual interface card module 15 to complete communication and supply power to the dual interface card module.
The vehicle-mounted device is also called an electronic tag.
Specifically, the dual-interface card module 15 includes a user card chip and an antenna, and the user card chip is connected to the antenna and the main control chip respectively; the user card chip stores the information of the user card.
Optionally, the user card chip may be a debit card issued by a bank or a chip of a stored value card; the user card chip is used for storing information of the user card, and the information of the user card comprises user ID, stored value information or account information or a combination of any two or three of the user ID, the stored value information and the account information.
Optionally, the mode of integrating the user card chip in the circuit may be a welding or other contact type read-write integration mode, and this scheme does not require this.
Alternatively, the antenna may be a PCB printed antenna.
Optionally, the vehicle-mounted device body further comprises a power module 12, the power taking mode of the power module 12 can be solar power supply, battery power supply or vehicle charging, or a combination of any two or three power taking modes, and the scheme does not require the power taking mode.
In a specific implementation, if the electronic tag is in normal communication with a Road Side Unit (RSU), the dual interface card module 15 receives a channel instruction sent by the main control chip, and updates the information of the user card according to the channel instruction, including implementing issuance or transaction; if the communication between the electronic tag and the road test unit RSU fails, the dual-interface card module 15 communicates with the handheld card reader device, executes corresponding operations according to instructions of the handheld card reader device, including transactions such as fee deduction and the like, and triggers the main control chip to read information of the user card again. The handheld card reader device can be any card reader operated by a worker, and the scheme does not require the handheld card reader device.
In the above scheme, it should be understood that, if the communication between the electronic tag and the drive test unit RSU fails, the communication is completed using the handheld card reader, which specifically includes: when the dual-interface card module approaches to the handheld card reading equipment, electric energy is obtained through antenna coupling in the dual-interface card module, and connection is established with the handheld card reading equipment; the double-interface card module executes corresponding operation on the user card in the double-interface card module according to the operation instruction sent by the handheld card reading equipment; when the user card leaves the handheld card reading device, the dual-interface card module generates an interrupt signal to trigger the main control chip to read the information of the user card again.
In a specific implementation, the first communication module 13 is a fixed-frequency microwave communication module, and the first communication module is used for communicating with the road side unit RSU at a frequency of 5.8GHz to implement issuance or transaction;
in the above scheme, it should be understood that, when the Electronic tag passes through an Electronic Toll Collection (ETC) lane of the Electronic toll collection system, the first communication module 13 wakes up the Electronic tag in the sleep state after receiving the frequency of 5.8GHz, the Electronic tag is connected with the road side unit RSU, the main control chip 14 receives a Dedicated Short Range Communications (DSRC) channel instruction sent by the road side unit RSU, and the control chip performs operations such as consumption initialization, fee deduction and the like on the dual interface card module according to the DSRC channel instruction;
the first communication module is also used for communicating with the desktop issuing equipment at the frequency of 5.8GHz to realize issuing or transaction. The desktop issuing equipment can be used for writing or reading issuing information, the issuing information comprises vehicle information, owner information and vehicle ciphertext, the vehicle information can be vehicle color information, vehicle brand information and the like, the owner information can comprise an owner name, an owner identification number and the like, and the vehicle ciphertext can comprise a license plate number and the like.
Optionally, the desktop issuing device may be an issuing information communication device used when the bank issues the electronic tag, and is used to write, read, and modify the issuing information, and may be a computer, a tablet, or a Micro Control Unit (MCU), and the like, which is not required in this scheme.
The integrated single-chip vehicle-mounted device provided by the embodiment is provided with a power module, a main control chip, a first communication module and a dual-interface card module, wherein the power module is connected with the main control chip and the first communication module, the main control chip is connected with the first communication module and the dual-interface card module to form a vehicle-mounted device body, the vehicle-mounted device body is arranged inside a shell, when the vehicle-mounted device body is close to a handheld card reading device, an antenna in the dual-interface card module is coupled to obtain electric energy and is connected with the handheld card reading device, the dual-interface card module executes corresponding operation on a user card in the dual-interface card module according to an operation instruction sent by the handheld card reading device, and when the vehicle-mounted device is away from the handheld card reading device, the dual-interface card module generates an interrupt signal to trigger the main control chip. When the transaction of the ETC system fails, the handheld card reading device can be used for communicating with the vehicle-mounted device to complete the transaction, and the user card chip is integrated in the vehicle-mounted device, so that the size of the vehicle-mounted device can be further reduced, the user experience is improved, and the driving risk is reduced.
Fig. 2 is a schematic structural diagram of a second embodiment of an integrated monolithic vehicle-mounted device according to the present invention, and as shown in fig. 2, a dual interface card module 15 in the integrated monolithic vehicle-mounted device includes: a user card chip 151 and an antenna 152;
the user card chip 151, in which information of the user card is stored, is connected to the antenna 152.
Optionally, the user card chip 151 may be a bank-issued debit card or a stored-value card chip; the user card chip is used for storing information of the user card, and the information of the user card comprises user ID, stored value information or account information or a combination of any two or three of the user ID, the stored value information and the account information.
Optionally, the user card chip 151 may be integrated in a circuit by soldering or other contact-type read/write integration methods, which is not required in this scheme.
In one embodiment, the antenna 152 may be a PCB printed antenna. As shown in fig. 3, fig. 3 is a schematic diagram of an antenna circuit of a dual interface card module, where the antenna includes: at least one capacitor and a coil; the at least one capacitor is connected with two ends of the coil to form a loop; and if the number of the capacitors is multiple, the capacitors are connected in parallel and then connected with two ends of the coil to form a resonant frequency of 13.56 MHz.
Optionally, the antenna may include 1 to 3 capacitors, and as shown in the figure, the antenna includes three capacitors, which are a first capacitor C1, a second capacitor C2, and a third capacitor C3.
Optionally, the capacitor is set to be less than 1CM away from the coil.
In the above scenario, it should be understood that the antenna 152 is used to induce an electromagnetic field emitted by the handheld reader device and to couple to harvest energy. When the handheld card reader equipment approaches the electronic tag, the antenna 152 receives a 13.56MHz electromagnetic field sent by the handheld card reader equipment, the antenna 152 obtains electric energy from the electromagnetic field in a coupling mode, the dual-interface card module is awakened, the dual-interface card module is connected with the handheld card reader equipment to carry out two-way communication, and operations such as fee deduction and the like are completed according to an instruction sent by the handheld card reader equipment. Because energy can be obtained by coupling from the electromagnetic field of the handheld card reader device through the antenna, the dual-interface card user module can communicate independently of an external card reader device without passing through a main control chip.
In this embodiment, an integrated monolithic vehicle-mounted device includes: a user card chip 151 and an antenna 152; the user card chip 151 is connected to the antenna 152, and stores information of the user card; the antenna includes: at least one capacitor and a coil; at least one capacitor is connected with two ends of the coil to form a loop; if the number of the capacitors is multiple, the capacitors are connected in parallel and then connected with two ends of the coil to form 13.56MHz resonance frequency; when the handheld card reader equipment approaches the electronic tag, the antenna 152 receives a 13.56MHz electromagnetic field sent by the handheld card reader equipment, the antenna 152 obtains electric energy from the electromagnetic field in a coupling mode, the dual-interface card module is awakened, the dual-interface card module is connected with the handheld card reader equipment to carry out two-way communication, and operations such as fee deduction and the like are completed according to an instruction sent by the handheld card reader equipment. The electronic tag can establish communication to complete transaction under the condition that the communication between the electronic tag and the RSU fails, and the user card is not pulled out by using the handheld card reader device, so that the user experience is improved, and the convenience is improved.
On the basis of the embodiment shown in fig. 2, after the dual-interface card module establishes communication with the handheld card reader device to complete a transaction, when the handheld card reader finishes the communication, the dual-interface card module generates an interrupt signal to trigger the main control chip to read information of the user card again. Simultaneously triggering the wake-up interrupt circuit.
Fig. 4 is a schematic diagram of a wake-up interrupt circuit of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention, where as shown in fig. 4, the wake-up interrupt circuit is connected between the user card chip and the main control chip, and the wake-up interrupt circuit includes a resistor R1 and an NPN transistor Q1;
the base level of the NPN type triode Q1 is connected with the user card chip U1, the collector of the NPN type triode Q1 is connected with the power supply module through the resistor R1, and the emitter of the NPN type triode Q1 is grounded; the collector of the NPN type triode Q1 is also connected with an interrupt pin of the main control chip U2.
In one specific implementation, after the handheld card reader device finishes communication each time, the 13.56M electromagnetic field is turned off, and the dual-interface card module generates an interrupt signal so as to inform the main control module to actively communicate with the dual-interface card module and to re-read the information of the user card. The specific method for realizing the off-field interruption is as follows: the user card chip and the main control chip are respectively provided with a pin connected with the awakening interrupt circuit; the dual-interface card module sets a pin of a user card chip to output a high level (the dual-interface card module is in a power-off state during the sleep period of the vehicle-mounted equipment, so that the high level can be output only by acquiring energy from an electromagnetic field during the communication period of the handheld equipment) during the communication with the handheld equipment, and a corresponding pin of the main control module obtains a low level by waking up the interrupt circuit; when the handheld card reader device closes the 13.56M electromagnetic field, the dual-interface card module loses electric energy, the pin recovers the low level, and the corresponding pin of the main control module obtains the high level through circuit conversion; when the handheld card reader device finishes communication, the electromagnetic field is switched off from the presence of a field, the corresponding pin of the main control chip is switched from the low level to the high level, an interrupt signal is generated, and the main control chip is triggered to read the updated information of the user card in the dual-interface card module again.
Optionally, the NPN type triode, which may also be another triode or a field effect transistor (MOSFET, MOS), is used to form a reverse signal, and may be adapted to an MCU chip, a part of which is only awakened by a rising edge interrupt.
In the wake-up interrupt circuit of the integrated monolithic vehicle-mounted device provided in this embodiment, the wake-up interrupt circuit is connected between the user card chip and the main control chip, and the wake-up interrupt circuit includes a resistor R1 and an NPN type triode Q1; when the handheld card reader finishes communication, an interrupt signal is generated by matching the user card chip and the main control chip so as to trigger the main control equipment to actively communicate with the dual-interface card module and read the information of the user card again.
Fig. 5 is a schematic structural diagram of a third embodiment of an integrated monolithic vehicle-mounted device according to an embodiment of the present invention, and as shown in fig. 5, the integrated monolithic vehicle-mounted device further includes: an Embedded security control Module (ESAM) 16, a second communication Module 17 and a bluetooth Module 18;
the ESAM16 is connected with the main control chip 14, and the ESAM16 is used for realizing key authentication and storing issuing information, wherein the issuing information comprises vehicle information, vehicle owner information and vehicle ciphertext.
Optionally, the main control chip 14 is connected to the ESAM16, and is further configured to supply power to the ESAM.
Optionally, the vehicle information may be vehicle color information, vehicle brand information, and the like, the vehicle owner information may include a vehicle owner name, a vehicle owner identification number, and the like, and the vehicle ciphertext may include a license plate number, and the like, and the scheme does not require this.
In a specific implementation, when the electronic tag communicates with the RSU through the ETC channel, the first communication module 13 wakes up the electronic tag in a sleep state after receiving the frequency of 5.8GHz, the electronic tag establishes connection with the RSU, the main control chip 14 receives an instruction sent by the RSU, and the control chip communicates with the ESAM according to the instruction and returns a communication result to the RSU to implement key authentication.
The second communication module 17 is connected to the power module 12, and the power module 12 is configured to supply power to the second communication module 17; the second communication module 17 is further connected to the main control chip 14, and the second communication module 17 is configured to perform data interaction with other electronic devices, for example, perform wireless communication with a fueling device of a gas station, and the like.
The bluetooth module 18 is connected with the power supply module, and the power supply module 12 is used for supplying power to the bluetooth module 18; the bluetooth module 18 is further connected to the main control chip 14, and the bluetooth module 18 is used for communicating with a terminal device.
Optionally, the terminal device may be a terminal device with a bluetooth connection function, such as a mobile phone, a tablet, or a computer, and this scheme does not require this.
Optionally, the user may use the bluetooth function of the terminal device to interact with the electronic tag through the bluetooth module, for example, to perform recharging and payment, account information query, balance query, device status query, and electric quantity check.
The integrated monolithic vehicle-mounted device further includes an ESAM16, a second communication module 17 and a bluetooth module 18, the power module is respectively connected with the second communication module and the bluetooth module for supplying power to the second communication module and the bluetooth module, and the ESAM, the second communication module and the bluetooth module are respectively connected with the main control chip. The ESAM is used for realizing key authentication and storing issuing information, wherein the issuing information comprises vehicle information, owner information and vehicle ciphertext; the second communication module is used for carrying out data interaction with other electronic equipment to realize the communication expansion function of the equipment; the Bluetooth module is used for communicating with the terminal equipment. The functions of the vehicle-mounted equipment are improved, and the user experience is improved.
Optionally, the software program, the operation data, and the like in the integrated monolithic vehicle-mounted device provided in this embodiment may be stored in the main control chip, or may also be stored in the storage medium.
In the above specific implementation of the Integrated monolithic onboard device, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disk, and any combination thereof.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An integrated monolithic in-vehicle device, comprising:
the device comprises a shell, a power supply module, a main control chip, a first communication module and a dual-interface card module;
the power supply module is respectively connected with the main control chip and the first communication module, and is used for supplying power to the main control chip and the first communication module;
the main control chip is respectively connected with the first communication module and the double-interface card module to form a vehicle-mounted equipment body; the vehicle-mounted equipment body is arranged inside the shell;
when the dual-interface card module approaches to the handheld card reading equipment, electric energy is obtained through antenna coupling in the dual-interface card module, and connection is established with the handheld card reading equipment; the double-interface card module executes corresponding operation on the user card in the double-interface card module according to the operation instruction sent by the handheld card reading equipment;
when the handheld card reading device finishes communication, the dual-interface card module generates an interrupt signal to trigger the main control chip to read the information of the user card again.
2. The integrated monolithic vehicle-mounted device of claim 1, wherein the dual interface card module comprises a user card chip and the antenna, the user card chip being connected to the antenna and the main control chip, respectively; the user card chip stores the information of the user card.
3. The integrated monolithic vehicle mount device of claim 2, further comprising:
the wake-up interrupt circuit is connected between the user card chip and the main control chip and comprises a resistor and an NPN type triode;
the base level of the NPN type triode is connected with the user card chip, the collector electrode of the NPN type triode is connected with the power supply module through the resistor, and the emitter electrode of the NPN type triode is grounded; and the collector of the NPN type triode is also connected with an interrupt pin of the main control chip.
4. The integrated monolithic vehicle mount device of any of claims 1-3, further comprising: the second communication module is connected with the power supply module, and the power supply module is used for supplying power to the second communication module;
the second communication module is also connected with the main control chip and is used for data interaction with other electronic equipment.
5. The integrated monolithic vehicle-mounted device of any one of claims 1 to 3, wherein the dual interface card module is further configured to receive a channel instruction sent by the main control chip, and the channel instruction is used to instruct to update information of the user card.
6. The integrated monolithic vehicle mount device of any of claims 1-3 wherein the antenna comprises: at least one capacitor and a coil; the at least one capacitor is connected with two ends of the coil to form a loop; and if the number of the capacitors is multiple, the capacitors are connected in parallel and then connected with two ends of the coil.
7. The integrated monolithic vehicle mount device of any of claims 1-3, further comprising: the embedded security control module ESAM is connected with the main control chip and used for realizing key authentication and storing issuing information, and the issuing information comprises vehicle information, vehicle owner information and vehicle ciphertext.
8. The integrated monolithic vehicle mount device of any of claims 1-3, further comprising: the Bluetooth module is connected with the power supply module, and the power supply module is used for supplying power to the Bluetooth module;
the Bluetooth module is also connected with the main control chip and is used for communicating with terminal equipment.
9. The integrated monolithic vehicle mount device of claim 4 wherein the first communication module is a fixed frequency microwave communication module and the second communication module is a fixed frequency microwave communication module.
10. The integrated monolithic vehicle-mounted device of claim 9, wherein the first communication module is configured to communicate with a Road Side Unit (RSU) at a frequency of 5.8GHz to implement a transaction;
the first communication module is also used for communicating with desktop publishing equipment at the frequency of 5.8GHz to realize publishing.
CN201810848270.6A 2018-07-27 2018-07-27 Integrated monolithic formula mobile unit Pending CN110766815A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115810222A (en) * 2023-02-01 2023-03-17 深圳高灯计算机科技有限公司 Method, system, device and storage medium for processing single-chip vehicle-mounted unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115810222A (en) * 2023-02-01 2023-03-17 深圳高灯计算机科技有限公司 Method, system, device and storage medium for processing single-chip vehicle-mounted unit
CN115810222B (en) * 2023-02-01 2023-05-12 深圳高灯计算机科技有限公司 Processing method, system, equipment and storage medium of monolithic vehicle-mounted unit

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