CN112087269B - Detection method of OBU in ETC - Google Patents
Detection method of OBU in ETC Download PDFInfo
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- CN112087269B CN112087269B CN202010933623.XA CN202010933623A CN112087269B CN 112087269 B CN112087269 B CN 112087269B CN 202010933623 A CN202010933623 A CN 202010933623A CN 112087269 B CN112087269 B CN 112087269B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a detection method of an OBU in an ETC, which comprises the steps that a host control module sends an instruction, and an antenna module triggers the OBU; the 5.8G antenna detects the state of the ESAM chip; the ESAM chip is subjected to spot inspection; the 5.8G antenna turns on the OBU; closing the 5.8G antenna channel; sending the opened MAC address of the OBU to the Bluetooth module; returning the state of the OBU to the host control module; the Bluetooth module carries out bidirectional authentication, recharge and clear and ciphertext instruction operation of ESAM \ SE on the opened OBU; the Bluetooth label is closed, the detection result is displayed, and the state record is stored; the operation is repeated, and the next batch of Bluetooth OBUs are detected in the previous operation flow.
Description
Technical Field
The invention relates to an OBU detection system, in particular to a detection method capable of simultaneously detecting an ESAM chip and Bluetooth of an OBU in ETC.
Background
ETC: (Electronic Toll Collection) Electronic Toll Collection (ETC) system is the most advanced way and bridge charging mode in the world at present, deducts the amount of money on a user card or carries out background settlement processing with a bank by using a computer networking technology through the special short-range microwave communication between a vehicle-mounted Electronic tag arranged on a vehicle windshield and a microwave antenna on an ETC lane of a Toll station, the ETC is an advanced electronic toll collection technology, is mainly applied to ramp entrances and exits and main line sign stations at present, is an ETC application mode under a closed highway toll scene, and is compelling to provide higher passing speed and higher passing efficiency along with the reform of the national highway supply side.
An OBU: the On board Unit is an abbreviation of an On board Unit, and the interpretation is that the microwave device communicates with an RSU (remote Short Range communication) by adopting a DSRC (dedicated Short Range communication) technology, in an ETC system, an OBU is placed On a vehicle, roadside-Road Side units (RSU-Road Side units) are erected On the roadside, the OBU and the RSU communicate with each other through microwaves when the vehicle passes through the RSU at a high speed.
RSU: the ETC system is installed On the roadside and is a device for realizing vehicle identity recognition and electronic toll collection by adopting DSRC (differentiated Short Range communication) technology and communicating with an On Board Unit (OBU).
With the rapid development of ETC, the functional state requirement on the OBU is higher, and the conventional OBU detection system only carries out spot check detection on the ESAM function of the OBU at present, and does not have a detection method for detecting the Bluetooth function of the OBU, or a detection method for simultaneously detecting the ESAM function and the Bluetooth function of the OBU.
In order to solve the technical problem, the application provides a detection method capable of simultaneously detecting an ESAM chip and Bluetooth of an OBU in an ETC.
Disclosure of Invention
Based on the defects of the prior art, the invention provides a detection method of an OBU in an ETC, which comprises the following steps:
firstly, the host control module gives an instruction to the antenna module, and the antenna module triggers the OBU;
secondly, the 5.8G antenna detects the state of the ESAM chip, and simultaneously needs to call an interface of the processor module and record the label and the Bluetooth MAC address of each OBU;
thirdly, after the OBU is subjected to ESAM chip sampling inspection, the recorded OBU label and the recorded Bluetooth MAC address are transmitted to the host control module; the 5.8G antenna starts the OBUs according to the sequence of the OBU labels from small to large;
fourthly, after the 5.8G antenna turns on the OBUs according to the sequence of the OBU labels from small to large, closing a 5.8G antenna channel; the host control module sends the started MAC address of the OBU to the Bluetooth module through a serial port;
fifthly, the Bluetooth module actively connects the OBU which is started, and after the connection is successful, the Bluetooth module returns the state of the OBU to the host control module through a serial port; the host control module starts to call a background interface, the Bluetooth module acquires instruction data of the host control module and sends the instruction data to the OBU, and the Bluetooth module performs bidirectional authentication, recharging and ESAM \ SE clear and cipher text instruction operation on the opened OBU;
sixthly, after the detection is finished, the on OBU is closed, the output display unit of the host control module displays the detection result, and the memory storage unit stores the state record;
seventhly, starting the 5.8G antenna again, and starting the next batch of OBUs to be detected through the 5.8G antenna; repeating the previous operation flow; and completing the detection of all the OBUs to be detected.
As an improvement of the detection method of the OBU in the ETC of the present invention, the OBU of the detection method of the OBU in the ETC of the present invention includes an ESAM chip, a bluetooth unit, and a 5.8G communication unit.
As an improvement of the detection method of the OBU in the ETC of the present invention, the antenna module of the detection method of the OBU in the ETC of the present invention is configured to detect the ESAM chip and to turn on the bluetooth unit of one or more OBUs.
As an improvement of the detection method of the OBU in the ETC of the present invention, the bluetooth unit of the OBU opened by the antenna module of the detection method of the OBU in the ETC of the present invention is opened in the order of the OBU label from small to large.
As an improvement of the detection method of the OBU in the ETC according to the present invention, the bluetooth module of the detection method of the OBU in the ETC according to the present invention is connected to one or more OBUs.
As an improvement of the detection method of the OBU in the ETC of the present invention, the antenna module of the detection method of the OBU in the ETC of the present invention includes a 5.8G antenna.
As an improvement of the detection method of the OBU in the ETC of the present invention, the host control module of the detection method of the OBU in the ETC of the present invention includes an output display unit and a memory storage unit.
As an improvement of the detection method of the OBU in the ETC of the present invention, the antenna module of the detection method of the OBU in the ETC of the present invention simultaneously turns on the bluetooth units of the eight OBUs, and the bluetooth module is simultaneously connected to the eight OBUs.
Compared with the prior art, the detection method of the OBU in the ETC has the following beneficial effects: the detection method of the OBU in the ETC comprises the 5.8G antenna, and the 5.8G antenna can detect whether the ESAM chip of the OBU is in a normal state or not; because included bluetooth module, bluetooth module can detect OBU whether bluetooth unit is in normal condition, to sum up, OBU's detection method can detect in the ETC ESAM chip also can detect bluetooth unit saves the cost, OBU's detection method can also be simultaneously to one or more in the ETC OBU detects to save time, and improved work efficiency.
Drawings
Fig. 1 is a block diagram of a detection method of an OBU in an ETC according to a preferred embodiment of the detection method of an OBU in an ETC.
Fig. 2 is a flowchart illustrating operation of the antenna module according to the preferred embodiment of the detection method for an OBU in an ETC according to the present invention.
Fig. 3 is a flowchart illustrating operation of the bluetooth module according to a preferred embodiment of the detection method of the OBU in the ETC according to the present invention.
Fig. 4 is a flowchart illustrating a method for detecting an OBU in an ETC according to a preferred embodiment of the method for detecting an OBU in an ETC of the present invention.
Detailed Description
The detection method of the OBU in the ETC is mainly suitable for detecting various OBUs.
With reference to fig. 1, 2, 3 and 4, the detection method of the OBU in the ETC according to the invention will be described in detail below.
In this embodiment, a method for detecting an OBU in an ETC includes the following steps:
firstly, the host control module gives an instruction to the antenna module, and the antenna module triggers the OBU;
secondly, the 5.8G antenna detects the state of the ESAM chip, and simultaneously needs to call an interface of the processor module and record the label and the Bluetooth MAC address of each OBU;
thirdly, after the OBU is subjected to ESAM chip sampling inspection, the recorded OBU label and the recorded Bluetooth MAC address are transmitted to the host control module; the 5.8G antenna starts the OBUs according to the sequence of the OBU labels from small to large;
fourthly, after the 5.8G antenna turns on the OBUs according to the sequence of the OBU labels from small to large, closing a 5.8G antenna channel; the host control module sends the started MAC address of the OBU to the Bluetooth module through a serial port;
fifthly, the Bluetooth module actively connects the OBU which is started, and after the connection is successful, the Bluetooth module returns the state of the OBU to the host control module through a serial port; the host control module starts to call a background interface, the Bluetooth module acquires instruction data of the host control module and sends the instruction data to the OBU, and the Bluetooth module performs bidirectional authentication, recharging and ESAM \ SE clear and cipher text instruction operation on the opened OBU;
sixthly, after the detection is finished, the on OBU is closed, the output display unit of the host control module displays the detection result, and the memory storage unit stores the state record;
seventhly, starting the 5.8G antenna again, and starting the next batch of OBUs to be detected through the 5.8G antenna; the previous operation flow is repeatedly carried out; and completing the detection of all the OBUs to be detected.
In this embodiment, the detection system of the detection method of the OBU in the ETC of the present invention includes an antenna module, a bluetooth module, a host control module and a processor module, the host control module is connected with the antenna module through a network port, the antenna module is connected with the OBU through wireless or wired connection, the OBU is connected with the bluetooth module through bluetooth, the bluetooth module is connected with the host control module through a serial port, the host control module is connected with the processor module through an interface or a network, and the bluetooth module is configured to detect configuration parameters of the OBU, authenticate the electronic tag, recharge bluetooth, and give an operation instruction.
In this embodiment, the OBU of the detection method of the OBU in the ETC of the present invention includes an ESAM chip, a bluetooth unit, and a 5.8G communication unit.
In this embodiment, the antenna module of the detection method of an OBU in an ETC of the present invention is configured to detect the ESAM chip and turn on the bluetooth unit of the OBU.
In this embodiment, the antenna module of the detection method for an OBU in an ETC according to the present invention turns on the bluetooth unit of the OBU in the order from small to large according to the OBU label.
In this embodiment, the antenna module of the detection method of the OBU in the ETC of the present invention includes a 5.8G antenna.
In this embodiment, the working flow of the antenna module including the 5.8G antenna according to the detection method of the OBU in the ETC of the present invention is as follows: firstly, the host control module initializes the 5.8G antenna and sends a communication wake-up instruction BST, the 5.8G antenna wakes up the OBU, and if the OBU is not woken up, the host control module sends the communication wake-up instruction BST again; if the OBU is successfully awakened, the 5.8G antenna acquires an ESAM chip authentication instruction sent by the host control module and sends the ESAM chip authentication instruction to the OBU, the 5.8G antenna acquires data of the OBU, the 5.8G antenna successfully acquires the data and sends the data of the ESAM chip to the host control module, then the host control module sends an instruction for starting the Bluetooth unit to the 5.8G antenna, if the Bluetooth unit is successfully started, the 5.8G antenna receives detection data of the OBU and sends the detection data to the host control module, and if the Bluetooth unit is not successfully started, the host control module sends an instruction for starting the Bluetooth unit to the 5.8G antenna; if the 5.8G antenna does not successfully acquire data, the 5.8G antenna sends a failure result to the host control module, and the host control module repeats the operation again.
In this embodiment, the working flow of the bluetooth module of the detection method of the OBU in the ETC of the present invention is as follows:
the main machine control module initializes the Bluetooth module, detects whether the Bluetooth unit is to be connected or not, if the Bluetooth unit is to be connected, further scans to see whether the OBU is to be connected or not, if the OBU is not to be connected, scans for 200ms again, if the OBU is successfully scanned, the Bluetooth module is connected and scans the OBU, if the connection is successful, the Bluetooth module sends the information of the OBU which is successfully connected to the main machine control module, if the connection is not successful, the OBU is connected again, the main machine control module successfully receives the information of the OBU, the main machine control module sends instructions of authentication, charging, ESAM \ SE and the like to the OBU, if the OBU does not receive the instructions, the OBU waits for the main machine control module to send the instructions again, the OBU successfully receives the instruction and executes the instruction, and the OBU transmits data to the host control module no matter whether the instruction is successfully executed or not, and the Bluetooth unit of the OBU detects and finishes.
In this embodiment, the host control module of the detection method of the OBU in the ETC according to the present invention includes an output display unit and a memory storage unit.
In this embodiment, the antenna module of the OBU detection method in the ETC according to the present invention simultaneously turns on the bluetooth units of eight OBUs, and the bluetooth module is simultaneously connected to the eight OBUs.
Compared with the prior art, the detection method of the OBU in the ETC has the following beneficial effects: the detection method of the OBU in the ETC comprises the 5.8G antenna, and the 5.8G antenna can detect whether the ESAM chip of the OBU is in a normal state or not; because included bluetooth module, bluetooth module can detect OBU whether bluetooth unit is in normal condition, to sum up, OBU's detection method can detect in the ETC ESAM chip also can detect bluetooth unit saves the cost, OBU's detection method can also be simultaneously to one or more in the ETC OBU detects to save time, and improved work efficiency.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (8)
1. A detection method of an OBU in ETC is characterized by comprising the following steps:
firstly, a host control module sends an instruction to an antenna module, and the antenna module triggers an OBU;
secondly, detecting the state of the ESAM chip by the 5.8G antenna, calling an interface of the processor module and recording the label and the Bluetooth MAC address of each OBU;
thirdly, after the OBU is subjected to ESAM chip sampling inspection, the recorded OBU label and the recorded Bluetooth MAC address are transmitted to the host control module; the 5.8G antenna starts the OBUs according to the sequence of the OBU labels from small to large;
fourthly, after the 5.8G antenna turns on the OBUs according to the sequence of the OBU labels from small to large, closing a 5.8G antenna channel; the host control module sends the started MAC address of the OBU to a Bluetooth module through a serial port;
fifthly, the Bluetooth module actively connects the OBU which is started, and after the connection is successful, the Bluetooth module returns the state of the OBU to the host control module through a serial port; the host control module starts to call a background interface, the Bluetooth module acquires instruction data of the host control module and sends the instruction data to the OBU, and the Bluetooth module performs bidirectional authentication, recharging and ESAM \ SE clear and cipher text instruction operation on the opened OBU;
sixthly, after the detection is finished, the on OBU is closed, an output display unit of the host control module displays a detection result, and a memory storage unit stores a state record;
seventhly, starting the 5.8G antenna again, and starting the next batch of OBUs to be detected through the 5.8G antenna; carrying out the previous operation flow; and completing the detection of all the OBUs to be detected.
2. The method for detecting an OBU in an ETC according to claim 1, wherein: the OBU comprises an ESAM chip, a Bluetooth unit and a 5.8G communication unit.
3. The method for detecting an OBU in an ETC according to claim 2, wherein: the antenna module is used for detecting the ESAM chip and opening one or more than one Bluetooth unit of the OBU.
4. The method for detecting an OBU in an ETC according to claim 3, wherein: the antenna module opens the Bluetooth unit of the OBU according to the sequence of the OBU labels from small to large.
5. The method for detecting an OBU in an ETC according to claim 4, wherein: the Bluetooth module is connected with one or more Bluetooth units of the OBU.
6. The method for detecting an OBU in an ETC according to claim 5, wherein: the antenna module comprises a 5.8G antenna.
7. The method for detecting an OBU in an ETC according to claim 6, wherein: the host control module comprises an output display unit and a memory storage unit.
8. The method for detecting an OBU in an ETC according to claim 7, wherein: the antenna module simultaneously opens eight of OBU the bluetooth unit, bluetooth module connects eight simultaneously the OBU.
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