CN111246434A - Method and system for determining safety state of vehicle-mounted unit - Google Patents
Method and system for determining safety state of vehicle-mounted unit Download PDFInfo
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- CN111246434A CN111246434A CN201911412316.0A CN201911412316A CN111246434A CN 111246434 A CN111246434 A CN 111246434A CN 201911412316 A CN201911412316 A CN 201911412316A CN 111246434 A CN111246434 A CN 111246434A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 86
- 230000004044 response Effects 0.000 claims abstract description 64
- 230000003993 interaction Effects 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000497429 Obus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
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- 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]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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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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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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- 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
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
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- 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
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Abstract
The invention discloses a method and a system for determining the safety state of a vehicle-mounted unit, wherein the method comprises the following steps: analyzing the electronic identification information to obtain a first electronic identification of the vehicle; analyzing the vehicle information in the vehicle-mounted unit to acquire a second electronic identifier of the vehicle; sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information; comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier and the second electronic identifier are different, causing the on-board unit to send a signal to a fragile electronic tag pasted together with the on-board unit at a predetermined position of the vehicle according to a third communication protocol, so as to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol; when the third response message is not received from the on-board unit within the predetermined time, the first response message is caused to be in a disabled state.
Description
Technical Field
The present invention relates to the field of Electronic Toll Collection (ETC) technology, and more particularly to a method and system for determining the safety status of an on-board unit.
Background
An Electronic Toll Collection (ETC) system adopts technical means such as electronics, communication, information processing and the like to enable an on-board unit (OBU) and a highway Road Side Unit (RSU) to exchange information, and performs charging processing through a background, so that lane charging automation is completed. The popularization of the ETC technology application effectively relieves traffic jam and improves vehicle passing efficiency. The OBU has vehicle information and user basic information, and when high-speed charging is carried out, the charging system can calculate the charge according to vehicle type information, vehicle running distance and other comprehensive information in the OBU.
The OBU is installed in a one-vehicle one-tag management mode, in order to avoid the OBU from being transferred privately, each OBU is provided with a safety mechanism for failure in disassembly, however, most of the main-stream OBUs still adopt a mechanical disassembly prevention technology, and the OBU still can be prevented from failing after being disassembled by a special method. In the case of the same driving distance, the model of the vehicle determines the amount of the charge, and the phenomenon that the small-sized vehicle label is illegally transferred to the large-sized vehicle for use frequently occurs under the driving of economic benefit.
At present, the method for identifying the illegal property of the OBU can judge through video identification of a vehicle type and a license plate and comparing the vehicle type information or the license plate number information read from the OBU, but the method is influenced by factors such as video identification speed and weather environment, and the real-time property and reliability of the illegal identification cannot be guaranteed.
The Electronic Identification (ERI) of the motor vehicle, also called Electronic license plate, is a second-generation ID card of the vehicle, has the advantages of large information amount, high recognition and reading speed, long recognition and reading distance and the like, and can realize the quick reading of the information in the Electronic Identification by using special recognition and reading equipment. At present, the ministry of public security has already established relevant technical standards, and the electronic identification of the motor vehicle becomes the necessary credible identification of each motor vehicle. The motor vehicle electronic identification also has information such as license plate numbers, and can be quickly and reliably read in a wireless mode by using special identification and reading equipment through an RFID (radio frequency identification) identification technology and is not influenced by light and weather factors.
Disclosure of Invention
In view of the drawbacks of the prior art, the present invention provides a method for determining a safety state of an on-board unit, the method comprising:
establishing a first communication connection with electronic identification equipment of a vehicle through a first communication protocol, acquiring electronic identification information of the vehicle based on the first communication connection, and analyzing the electronic identification information to acquire a first electronic identification of the vehicle;
establishing a second communication connection with an on-board unit of the vehicle through a second communication protocol, acquiring vehicle information of the vehicle based on the second communication connection, and analyzing the vehicle information in the on-board unit to acquire a second electronic identifier of the vehicle;
sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information, wherein a time to failure field is set in the first response message, the time to failure field being used to indicate the time to failure of the first response message without receiving an additional confirmation message;
comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier and the second electronic identifier are different, causing the on-board unit to send a signal to a fragile electronic tag pasted together with the on-board unit at a predetermined position of the vehicle according to a third communication protocol, so as to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol;
and when the third response message is not received from the vehicle-mounted unit within the preset time, prompting the first response message to be in a failure state, and determining the safety state of the vehicle-mounted unit as an illegal state.
And when a third response message is received from the vehicle-mounted unit within a preset time, prompting the first response message to be in a valid state, and determining the safety state of the vehicle-mounted unit to be a legal state.
The first electronic identification is a license plate number of a vehicle and the second electronic identification is a license plate number of a vehicle.
The electronic identification device is a non-tamperable device.
The predetermined time is 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time is 2 seconds, 5 seconds, or 10 seconds.
The predetermined position is an upper side of a front windshield of the vehicle.
Any two of the first, second and third communication protocols may be the same or different, and the interaction message includes an identifier of the road side unit, location information and an indication to start charging.
The method further comprises the following steps: setting the failure time, and updating the failure time field according to the set failure time;
judging the state of the first response message according to the failure time field;
when the first response message is in an effective state, the vehicle-mounted unit and the road side unit carry out data communication;
and when the first response message is in a failure state, the vehicle-mounted unit does not carry out data communication with the road side unit.
And adhering the first surface of the vehicle-mounted unit and the first surface of the fragile electronic tag through a first adhering medium, and adhering the second surface of the fragile electronic tag to a preset position of a vehicle through a second adhering medium.
The transmitting a signal to a fragile electronic tag affixed at a predetermined position of a vehicle together with an in-vehicle unit according to a third communication protocol includes: and the vehicle-mounted unit sends a signal to a fragile electronic tag which is pasted at a preset position of the vehicle together with the vehicle-mounted unit through the radio frequency module according to a third communication protocol.
The present invention also provides a system for determining the safety status of an on-board unit, the system comprising:
the first communication device is used for establishing first communication connection with electronic identification equipment of the vehicle through a first communication protocol, acquiring electronic identification information of the vehicle based on the first communication connection, and analyzing the electronic identification information to acquire a first electronic identification of the vehicle;
the second communication device is used for establishing second communication connection with an on-board unit of the vehicle through a second communication protocol, acquiring vehicle information of the vehicle based on the second communication connection, and analyzing the vehicle information in the on-board unit to acquire a second electronic identifier of the vehicle; sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information, wherein a time to failure field is set in the first response message, the time to failure field being used to indicate the time to failure of the first response message without receiving an additional confirmation message;
comparing means for comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier and the second electronic identifier are different, causing the on-board unit to transmit a signal to a fragile electronic tag affixed at a predetermined position of the vehicle together with the on-board unit according to a third communication protocol to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol;
and the processing device prompts the first response message to be in a failure state when the third response message is not received from the vehicle-mounted unit within the preset time, and determines the safety state of the vehicle-mounted unit as an illegal state.
And when the processing device receives the third response message from the vehicle-mounted unit within the preset time, the processing device prompts the first response message to be in a valid state, and determines the safety state of the vehicle-mounted unit to be a legal state.
The first electronic identification is a license plate number of a vehicle and the second electronic identification is a license plate number of a vehicle.
The electronic identification device is a non-tamperable device.
The predetermined time is 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time is 2 seconds, 5 seconds, or 10 seconds.
The predetermined position is an upper side of a front windshield of the vehicle.
Any two of the first, second and third communication protocols may be the same or different, and the interaction message includes an identifier of the road side unit, location information and an indication to start charging.
The system further comprises:
an updating means for setting the expiration time and updating the expiration time field according to the set expiration time;
the judging device judges the state of the first response message according to the failure time field;
when the first response message is in an effective state, the vehicle-mounted unit and the road side unit carry out data communication;
and when the first response message is in a failure state, the vehicle-mounted unit does not carry out data communication with the road side unit.
And adhering the first surface of the vehicle-mounted unit and the first surface of the fragile electronic tag through a first adhering medium, and adhering the second surface of the fragile electronic tag to a preset position of a vehicle through a second adhering medium.
The transmitting a signal to a fragile electronic tag affixed at a predetermined position of a vehicle together with an in-vehicle unit according to a third communication protocol includes: and the vehicle-mounted unit sends a signal to a fragile electronic tag which is pasted at a preset position of the vehicle together with the vehicle-mounted unit through the radio frequency module according to a third communication protocol.
In addition, the invention also provides a method, a device and a system for accurately identifying the illegal transfer behavior of the OBU, so as to realize the identification of the illegal transfer behavior of the OBU and realize the effective interception of illegal vehicles by combining a background system.
The invention is realized by adopting the following technical scheme:
the invention provides a method and equipment for identifying the illegally of an OBU (on-board unit), wherein the equipment is provided with a motor vehicle electronic identification information reading module, an OBU information reading module and an OBU illegal judging module. The motor vehicle electronic identification information reading module is used for reading data information in the vehicle-mounted electronic identification, and is used for reading and analyzing the electronic license plate number information (license plate number 1) in a key mode. The OBU information reading module is used for reading electronic license plate number information (license plate number 2) in the OBU. The OBU illegal judging module compares the license plate number 1 with the license plate number 2, and if the license plate number 1 is different from the license plate number 2, the OBU is judged to be illegally transferred.
The license plate number comparison result of the OBU illegal judgment module can be provided for a background system to realize the identification and interception of illegal vehicles.
The invention has the beneficial effects that the method, the equipment and the system for efficiently and quickly identifying the illegal OBU are provided, and the identification of the vehicle with the illegal OBU can be automatically completed.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
FIG. 1 is a flow chart of a method of determining a safety state of an on-board unit in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic block diagram of a system for determining the safety status of an on-board unit in accordance with a preferred embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for identifying the unlawfulness of an OBU according to a preferred embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flowchart of a method of determining a safety state of an on-board unit according to a preferred embodiment of the present invention. The method starts at step 101. In step 101, a first communication connection is established with an electronic identification device of a vehicle through a first communication protocol, electronic identification information of the vehicle is acquired based on the first communication connection, and the electronic identification information is analyzed to acquire a first electronic identification of the vehicle.
In step 102, a second communication connection is established with an on-board unit of the vehicle through a second communication protocol, vehicle information of the vehicle is acquired based on the second communication connection, and the vehicle information in the on-board unit is analyzed to acquire a second electronic identification of the vehicle.
In step 103, mutual information is sent to an on-board unit of a vehicle based on the second communication connection to prompt the vehicle unit to generate a first response message based on the mutual information, wherein a failure time field is set in the first response message, and the failure time field is used for indicating the failure time of the first response message in the case that an additional confirmation message is not received.
At step 104, the first electronic identification and the second electronic identification are compared, and when the first electronic identification and the second electronic identification are different, the on-board unit is caused to send a signal to a fragile electronic tag affixed at a predetermined position of the vehicle together with the on-board unit according to a third communication protocol, so as to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol.
In step 105, when the third response message is not received from the on-board unit within the predetermined time, the first response message is prompted to be in a failure state, and the safety state of the on-board unit is determined to be an illegal state.
And when a third response message is received from the vehicle-mounted unit within a preset time, prompting the first response message to be in a valid state, and determining the safety state of the vehicle-mounted unit to be a legal state. The first electronic identification is a license plate number of a vehicle and the second electronic identification is a license plate number of a vehicle. The electronic identification device is a non-tamperable device. The predetermined time is 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time is 2 seconds, 5 seconds, or 10 seconds. The predetermined position is an upper side of a front windshield of the vehicle. Any two of the first, second and third communication protocols may be the same or different, and the interaction message includes an identifier of the road side unit, location information and an indication to start charging.
The method further comprises the following steps: setting the failure time, and updating the failure time field according to the set failure time; judging the state of the first response message according to the failure time field; when the first response message is in an effective state, the vehicle-mounted unit and the road side unit carry out data communication; and when the first response message is in a failure state, the vehicle-mounted unit does not carry out data communication with the road side unit.
And adhering the first surface of the vehicle-mounted unit and the first surface of the fragile electronic tag through a first adhering medium, and adhering the second surface of the fragile electronic tag to a preset position of a vehicle through a second adhering medium. The transmitting a signal to a fragile electronic tag affixed at a predetermined position of a vehicle together with an in-vehicle unit according to a third communication protocol includes: and the vehicle-mounted unit sends a signal to a fragile electronic tag which is pasted at a preset position of the vehicle together with the vehicle-mounted unit through the radio frequency module according to a third communication protocol.
Fig. 2 is a schematic configuration diagram of a system for determining a safety state of an in-vehicle unit according to a preferred embodiment of the present invention. The system comprises: a first communication device 201, a second communication device 202, a comparison device 203, a processing device 204, an updating device 205 and a determination device 206. The first communication device 201 establishes a first communication connection with an electronic identification device of a vehicle through a first communication protocol, acquires electronic identification information of the vehicle based on the first communication connection, and parses the electronic identification information to acquire a first electronic identification of the vehicle.
The second communication device 202 establishes a second communication connection with an on-board unit of the vehicle through a second communication protocol, acquires vehicle information of the vehicle based on the second communication connection, and analyzes the vehicle information in the on-board unit to acquire a second electronic identifier of the vehicle; sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information, wherein a time to failure field is set in the first response message, the time to failure field being used to indicate the time to failure of the first response message without receiving an additional confirmation message.
And a comparison device 203 for comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier is different from the second electronic identifier, causing the on-board unit to send a signal to a fragile electronic tag pasted together with the on-board unit at a predetermined position of the vehicle according to a third communication protocol, so as to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol.
And the processing device 204 is used for prompting the first response message to be in a failure state when the third response message is not received from the vehicle-mounted unit within the preset time, and determining the safety state of the vehicle-mounted unit as an illegal state. When the third response message is received from the on-board unit within the predetermined time, the processing device 204 prompts the first response message to be in a valid state, and determines the safety state of the on-board unit to be a legal state.
And an updating means 205 for setting the expiration time and updating the expiration time field according to the set expiration time.
The judging device 206 judges the status of the first response message according to the expiration time field. When the first response message is in an effective state, the vehicle-mounted unit and the road side unit carry out data communication; and when the first response message is in a failure state, the vehicle-mounted unit does not carry out data communication with the road side unit.
The first electronic identification is a license plate number of a vehicle and the second electronic identification is a license plate number of a vehicle. The electronic identification device is a non-tamperable device. The predetermined time is 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time is 2 seconds, 5 seconds, or 10 seconds. The predetermined position is an upper side of a front windshield of the vehicle. Any two of the first, second and third communication protocols may be the same or different, and the interaction message includes an identifier of the road side unit, location information and an indication to start charging. And adhering the first surface of the vehicle-mounted unit and the first surface of the fragile electronic tag through a first adhering medium, and adhering the second surface of the fragile electronic tag to a preset position of a vehicle through a second adhering medium. The transmitting a signal to a fragile electronic tag affixed at a predetermined position of a vehicle together with an in-vehicle unit according to a third communication protocol includes: and the vehicle-mounted unit sends a signal to a fragile electronic tag which is pasted at a preset position of the vehicle together with the vehicle-mounted unit through the radio frequency module according to a third communication protocol.
Fig. 3 is a schematic structural diagram of an apparatus for identifying the unlawfulness of an OBU according to a preferred embodiment of the present invention. As shown in fig. 3, the electronic identification information reading module of the motor vehicle in the present invention can adopt a fixed reader-writer of the electronic identification of the motor vehicle, and is used for reading the electronic identification information of the motor vehicle. The method is used for reading and analyzing license plate number information in the electronic identification of the motor vehicle, and the analyzed license plate number information (license plate number 1) is output to the OBU illegal judgment module.
The OBU information reading module in the invention adopts an ETC road side unit reader-writer (RSU) for reading the vehicle information in the OBU. The OBU license plate number information analysis system is used for reading and analyzing license plate number information in the OBU, and the analyzed license plate number information (license plate number 2) is output to the OBU illegal judgment module.
The OBU illegal judgment module is used for comparing the license plate number 1 provided by the motor vehicle electronic identification information reading module with the license plate number 2 provided by the OBU information reading module. If the license plate number 1 is different from the license plate number 2, the OBU is judged to be illegally transferred. And the judgment result of the OBU illegal judgment module is output to a background system for intercepting illegal vehicles.
It is to be understood that the invention is not limited in its application to the details of the examples and illustrations set forth above, and that modifications and variations such as will be obvious to those skilled in the art are intended to be included within the scope of the invention as defined by the appended claims. For example, the method of integrating one or more of the electronic identification reading module of the motor vehicle, the OBU information reading module and the OBU illegality judging module into the same hardware module, and the generated simple transformation and the like should belong to the protection scope of the present invention.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Claims (10)
1. A method for determining a safety state of an on-board unit, the method comprising:
establishing a first communication connection with electronic identification equipment of a vehicle through a first communication protocol, acquiring electronic identification information of the vehicle based on the first communication connection, and analyzing the electronic identification information to acquire a first electronic identification of the vehicle;
establishing a second communication connection with an on-board unit of the vehicle through a second communication protocol, acquiring vehicle information of the vehicle based on the second communication connection, and analyzing the vehicle information in the on-board unit to acquire a second electronic identifier of the vehicle;
sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information, wherein a time to failure field is set in the first response message, the time to failure field being used to indicate the time to failure of the first response message without receiving an additional confirmation message;
comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier and the second electronic identifier are different, causing the on-board unit to send a signal to a fragile electronic tag pasted together with the on-board unit at a predetermined position of the vehicle according to a third communication protocol, so as to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol;
and when the third response message is not received from the vehicle-mounted unit within the preset time, prompting the first response message to be in a failure state, and determining the safety state of the vehicle-mounted unit as an illegal state.
2. The method according to claim 1, wherein the security status of the on-board unit is determined to be a legal status by prompting the first response message to be in a valid status when a third response message is received from the on-board unit within a predetermined time.
3. The method of claim 1, the first electronic identification being a license plate number of a vehicle and the second electronic identification being a license plate number of a vehicle.
4. The method of claim 1, the electronic identification device being a non-tamperable device.
5. The method of claim 1, the predetermined time being 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time being 2 seconds, 5 seconds, or 10 seconds.
6. A system for determining a safety state of an on-board unit, the system comprising:
the first communication device is used for establishing first communication connection with electronic identification equipment of the vehicle through a first communication protocol, acquiring electronic identification information of the vehicle based on the first communication connection, and analyzing the electronic identification information to acquire a first electronic identification of the vehicle;
the second communication device is used for establishing second communication connection with an on-board unit of the vehicle through a second communication protocol, acquiring vehicle information of the vehicle based on the second communication connection, and analyzing the vehicle information in the on-board unit to acquire a second electronic identifier of the vehicle; sending interaction information to an on-board unit of a vehicle based on the second communication connection to cause the vehicle unit to generate a first response message based on the interaction information, wherein a time to failure field is set in the first response message, the time to failure field being used to indicate the time to failure of the first response message without receiving an additional confirmation message;
comparing means for comparing the first electronic identifier with the second electronic identifier, and when the first electronic identifier and the second electronic identifier are different, causing the on-board unit to transmit a signal to a fragile electronic tag affixed at a predetermined position of the vehicle together with the on-board unit according to a third communication protocol to cause the fragile electronic tag to generate a third response message based on the signal of the third communication protocol;
and the processing device prompts the first response message to be in a failure state when the third response message is not received from the vehicle-mounted unit within the preset time, and determines the safety state of the vehicle-mounted unit as an illegal state.
7. The system of claim 6, wherein the processing device causes the first response message to be in a valid state when the third response message is received from the on-board unit within a predetermined time, and determines the safety state of the on-board unit as a legal state.
8. The system of claim 6, the first electronic identification being a license plate number of a vehicle and the second electronic identification being a license plate number of a vehicle.
9. The system of claim 6, the electronic identification device being a non-tamperable device.
10. The system of claim 6, the predetermined time being 1 second, 2 seconds, 3 seconds, or 5 seconds, and the expiration time being 2 seconds, 5 seconds, or 10 seconds.
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| CN201911412316.0A CN111246434A (en) | 2019-12-31 | 2019-12-31 | Method and system for determining safety state of vehicle-mounted unit |
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| CN201911412316.0A CN111246434A (en) | 2019-12-31 | 2019-12-31 | Method and system for determining safety state of vehicle-mounted unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362843A (en) * | 2021-12-27 | 2022-04-15 | 北京万集科技股份有限公司 | Method and device for detecting vehicle-mounted unit and related product |
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