CN106910367B - A kind of vehicle checker based on NB-IOT network - Google Patents
A kind of vehicle checker based on NB-IOT network Download PDFInfo
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- CN106910367B CN106910367B CN201710101392.4A CN201710101392A CN106910367B CN 106910367 B CN106910367 B CN 106910367B CN 201710101392 A CN201710101392 A CN 201710101392A CN 106910367 B CN106910367 B CN 106910367B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
- G08G1/148—Management of a network of parking areas
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention relates to a kind of vehicle checker based on NB-IOT network, which includes information acquisition unit, crypto key memory, read-only memory, security module, communication module.Institute's information acquisition unit obtains parking information and is sent to security module, security module is sent to long-range intelligent Cloud Server by the NB-IOT network of communication module after encrypting parking information, then the encryption key in the crypto key memory is updated, the number and server address of vehicle checker are stored in read-only memory.
Description
[technical field]
The invention belongs to communicate and internet of things field more particularly to a kind of vehicle checker based on NB-IOT network.
[background technique]
Vehicle checker is that current acquisition vehicle parking information predominantly detects means, and its object is to acquire the parking on parking stall
Information sends the parking information to communication base station immediately, and existing vehicle checker work needs under 2G/3G/4G honeycomb network technology
Information is collected by Tandem Gateway and feeds back to base station again, and network disposes complicated, Multi net voting networking, Gao Chengben, and in adverse circumstances
Under cannot normally monitor.
A kind of emerging network technology of NB-IOT network is a kind of based on cellular narrowband Internet of Things, can directly be disposed
In GSM network, UMTS network or LTE network, support that stand-by time is short, efficient connection to network connectivity requirements higher device,
Have the characteristics that covering is wide, connection is more, rate is low, at low cost, power consumption is few, framework is excellent etc., has become the one of all things on earth Internet of Things at present
A important branch.
[summary of the invention]
In order to solve the above problem in the prior art, the invention proposes the vehicle checkers based on NB-IOT network
The technical solution adopted by the present invention is specific as follows:
A kind of vehicle checker based on NB-IOT network, the vehicle checker include information acquisition unit, crypto key memory, read-only deposit
Reservoir, security module and communication module, wherein
The information acquisition unit is used to obtain the parking information in parking stall, and the parking information that will acquire is sent to institute
State security module；
The crypto key memory is a nonvolatile storage, for storing the current key of vehicle checker, is gone out in vehicle checker
When factory, an initial key has been stored in advance as current key in the crypto key memory, the initial key simultaneously with the car test
The coding correspondence of device is stored in the database of intelligent Cloud Server.
The network of the unique encodings for being read-only memory for storing the vehicle checker and the intelligent Cloud Server
Address；
The communication module is used to communicate by NB-IOT network with the communication base station of outside, so that vehicle checker can be with
External world's communication；
The security module is used to receive parking information from the information acquisition unit, and after parking information is encrypted,
It is sent to the intelligent Cloud Server by communication module, and the key in the crypto key memory can be updated, it is specific
The course of work is as follows:
(1) after the security module receives data Data from the information acquisition unit, from the crypto key memory
Read current key K；
(2) security module encrypts the data Data using current key K, and reads from the read-only memory
The coding Code of vehicle checker, to be assembled into a data packet Message, it may be assumed that
Message={ Code, EK(Data)},
Wherein EKIndicate an Encryption Algorithm using key K；
(3) security module reads the network address of the intelligent Cloud Server from the read-only memory, by group
The data packet Message dressed up is sent to the intelligent Cloud Server by communication module；
(4) after the intelligent Cloud Server receives the data packet Message, the data packet is parsed, vehicle checker is obtained
Coding Code, inquired from database according to the Code and obtain its corresponding current key K, thus using K in Message
EK(Data) it is decrypted, obtains data Data, and store data Data as parking information；
(5) if data Data instruction is that vehicle enters parking stall, the intelligence Cloud Server and vehicle checker are all
Calculate a new key Knew=K ⊕ PN, the vehicle checker is by KnewIt is stored in the crypto key memory as new current key,
To replace original K；The intelligence Cloud Server is by KnewDeposit database corresponding with Code, using as the current of the vehicle checker
Key, wherein PN is the license plate number of the information acquisition unit identification.
Further, the information acquisition unit judges parking stall by the situation of change of magnetic flux in scanning parking stall
On whether there is or not vehicle, when there is vehicle, obtain vehicle-related information by reading the RFID electronic label on vehicle.
Further, the vehicle checker when leaving the factory, an initial key is stored in its crypto key memory and is used as and is worked as
In preceding key, the initial key while the database for being stored in the intelligent Cloud Server corresponding with the coding of the vehicle checker.
Further, the Encryption Algorithm is block cipher.
Further, the RFID electronic label is fixed on vehicle, wherein storing the relevant information of corresponding vehicle, is wrapped
Include license plate number.
Further, the network address of the vehicle checker coding and the intelligent Cloud Server is just interior when vehicle checker dispatches from the factory
It sets in the read-only memory.
The beneficial effect comprise that 1) every square kilometre can support installation number in NB-IoT base station range
Sensor terminal in terms of ten thousand realizes comprehensive monitoring management；2) vehicle checker plug and play, lower deployment cost decline to a great extent, and support
Up to the service life of several years；3) it supports ubiquitous and safe and reliable NB-IoT network, has excellent performance and steady
It is qualitative.It can be effectively reduced road investment and operation cost, reasonable disposition parking resource promotes working efficiency.
[Detailed description of the invention]
Described herein the drawings are intended to provide a further understanding of the invention, constitutes part of this application, but
It does not constitute improper limitations of the present invention, in the accompanying drawings:
Fig. 1 is system diagram applied by vehicle checker of the present invention.
Fig. 2 is the building-block of logic of vehicle checker of the present invention.
[specific embodiment]
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used to explain the present invention but not as a limitation of the invention.
Referring to attached drawing 1, it illustrates system applied by vehicle checker of the present invention, which includes vehicle checker, RFID electronics
Label, communication base station, intelligent Cloud Server.
The RFID electronic label is fixed on vehicle bottom, can also be fabricated to the shape of electronic license plate in conjunction in license plate
Formula.The relevant information of corresponding vehicle is stored in RFID electronic label, i.e., the information of the vehicle can be identified including license plate number etc..
The vehicle checker is set to parking stall, and a vehicle checker is arranged in each parking stall, and the two is one-to-one
Relationship.The present invention is that each parking stall is provided with a unique number, which is also the number of corresponding vehicle checker.It is described
Vehicle checker can judge on parking stall by the situation of change of magnetic flux in timing scan parking stall first whether there is or not vehicle, when having
When vehicle enters parking stall, the vehicle checker can identify the vehicle by reading the RFID electronic label on the vehicle, read
After taking successfully, the vehicle checker reports read vehicle-related information to the intelligent Cloud Server.
The communication base station is used to access vehicle checker network, and vehicle checker of the invention passes through described in NB-IOT network connection
Communication base station, so that vehicle checker can be communicated with the intelligent Cloud Server.
The intelligence Cloud Server is the administrative center of whole system of the present invention, the vehicle letter for being reported according to vehicle checker
Breath, records and counts the Parking situation on each parking stall.
NB-IOT can support large-scale network insertion, and a equipment accesses up to ten thousand can be supported in one square kilometre,
To realize the comprehensive monitoring management to parking stall.But due to being wireless access, the number transmitted between vehicle checker and communication base station
It is monitored and is stolen by people according to easy, and existing NB-IOT technology does not consider the problems of safety, therefore the present invention is for base
Safety component is increased in the vehicle checker of NB-IOT network.
On considering the problems of safety, on the one hand, vehicle checker has the characteristics that different from common network transmission.Because
Data transmitted by vehicle checker are the vehicle identification information on parking stall, such as license plate number, since license plate number is fully visible
, so if there is hacker wants to steal the data on single parking stall, as long as sending someone to monitor the parking stall, so single vehicle
The content that inspection device is transmitted is not necessarily to excessively high safety in fact.But for a city, the parking information in entire city
It is not just that common people can obtain, what hacker wanted to obtain is exactly this large amount of parking information with statistical significance.Separately
On the one hand, vehicle checker itself is a kind of equipment of low-power consumption, and computing capability is weaker, can not carry out complicated safe operation.
Based on above-mentioned both sides reason, the safe design main purpose of vehicle checker is to resist the statistics of hacker and attack
It hits, but not can be carried out too complicated calculating again.
Referring to attached drawing 2, it illustrates the basic structures of vehicle checker of the present invention, comprising: information acquisition unit, key storage
Device, read-only memory, security module, communication module.
The information acquisition unit is for obtaining parking information, comprising: passes through the variation feelings of magnetic flux in scanning parking stall
Condition judges that whether there is or not vehicles on parking stall, when there is vehicle, obtains vehicle phase by reading the RFID electronic label on vehicle
Close information.Therefore, information acquisition unit can produce two class data, and the first kind is the vehicle of acquisition when having vehicle to enter parking stall
Relevant information；Second class is information when vehicle leaves.The data that information acquisition unit generates every time are all immediately sent to
The security module.
The crypto key memory is a nonvolatile storage, and for storing current key, the current key is by the peace
Full module is used in encryption and decryption.The vehicle checker when leaving the factory, stored in its crypto key memory one it is initial close
Key is as current key, the initial key data for being stored in the intelligent Cloud Server corresponding with the coding of the vehicle checker simultaneously
In library.
The network address of the coding for being read-only memory for storage vehicle checker and intelligent Cloud Server, the coding are
Global unique encodings.The coding and the network address are just built in the read-only memory when vehicle checker dispatches from the factory, due to being
Read-only memory, so the coding and the network address are actually not modifiable.
The communication module is the module for vehicle checker and PERCOM peripheral communication, and specifically, which is based on NB-IOT
Technology is connected to the communication base station so that the vehicle checker can with communication with the outside world, including with the intelligent cloud on network
Server communication.
Mainly there are two effects for the security module: first, data are received from information acquisition unit, and by data encryption
Afterwards, the intelligent Cloud Server is sent to by communication module；Second, update the key in crypto key memory.Below to safety
The course of work of module is described in detail:
(1) after the security module receives data Data from the information acquisition unit, from the crypto key memory
Read current key K.
Include the instruction information that vehicle enters or leave parking stall in the data Data, enters parking if it is vehicle
, it is further comprised in the data Data from the license plate number PN for entering RFID electronic label reading on vehicle.
(2) security module encrypts the data Data using current key K, and reads from the read-only memory
The coding Code of vehicle checker, to be assembled into a data packet Message, it may be assumed that
Message={ Code, EK(Data)},
Wherein EKIt indicates an Encryption Algorithm using key K, Data is encrypted by the algorithm.It needs to illustrate
It is that, since the computing capability of vehicle checker is weaker, Encryption Algorithm here uses block cipher, and block cipher is generally counted
Calculation process is relatively simple, is suitable for low power consuming devices and uses.
(3) security module reads the network address of the intelligent Cloud Server from the read-only memory, by group
The data packet Message dressed up is sent to the intelligent Cloud Server by communication module.
(4) after the intelligent Cloud Server receives the data packet Message, the data packet is parsed, vehicle checker is obtained
Coding Code, inquired from database according to the Code and obtain its corresponding current key K, thus using K in Message
EK(Data) it is decrypted, obtains data Data, and store data Data as parking information.
(5) if data Data instruction is that vehicle enters parking stall, the intelligence Cloud Server and vehicle checker are all
Calculate a new key Knew=K ⊕ PN, the vehicle checker is by KnewIt is stored in the crypto key memory as new current key,
To replace original K；The intelligence Cloud Server is by KnewDeposit database corresponding with Code, using as the current of the vehicle checker
Key.
By the step for, the current key of vehicle checker can be all updated after the entrance of each vehicle, in other words, vehicle checker
Communication key between intelligent Cloud Server is changing at any time, and this greatly enhances the safeties of communication, increases hacker and steals
The difficulty listened.For a large amount of vehicle checker, communication key is all different, so that the statistical attack of hacker also becomes not
It is feasible.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (5)
1. a kind of vehicle checker based on NB-IOT network, which is characterized in that the vehicle checker includes information acquisition unit, key storage
Device, read-only memory, security module and communication module, wherein
The information acquisition unit is used to obtain the parking information in parking stall, and the parking information that will acquire is sent to the peace
Full module；
The crypto key memory is a nonvolatile storage, for storing the current key of vehicle checker, in vehicle checker factory,
Volume of the initial key as current key, the initial key while with the vehicle checker has been stored in advance in the crypto key memory
Code correspondence is stored in the database of intelligent Cloud Server；
The network address of the unique encodings for being read-only memory for storing the vehicle checker and the intelligent Cloud Server；
The communication module is used to communicate by NB-IOT network with external communication base station, so that vehicle checker can be with the external world
Communication；
The security module is used to receive parking information from the information acquisition unit, and after parking information is encrypted, passes through
Communication module is sent to the intelligent Cloud Server, and can update the key in the crypto key memory, specific works
Process is as follows:
(1) it after the security module receives data Data from the information acquisition unit, is read from the crypto key memory
Current key K；
(2) security module encrypts the data Data using current key K, and reads car test from the read-only memory
The coding Code of device, to be assembled into a data packet Message, it may be assumed that
Message={ Code, EK(Data)},
Wherein EKIndicate an Encryption Algorithm using key K；
(3) security module reads the network address of the intelligent Cloud Server from the read-only memory, will be assembled into
Data packet Message the intelligent Cloud Server is sent to by communication module；
(4) after the intelligent Cloud Server receives the data packet Message, the data packet is parsed, the volume of vehicle checker is obtained
Code Code, inquires from database according to the Code and obtains its corresponding current key K, thus using K to the E in MessageK
(Data) it is decrypted, obtains data Data, and store data Data as parking information；
(5) if data Data instruction is that vehicle enters parking stall, the intelligence Cloud Server and vehicle checker are all calculated
One new key Knew=K ⊕ PN, the vehicle checker is by KnewIt is stored in the crypto key memory as new current key, to take
For original K；The intelligence Cloud Server is by KnewDeposit database corresponding with Code, using the current key as the vehicle checker,
Wherein, PN is the license plate number of the information acquisition unit identification.
2. the vehicle checker according to claim 1 based on NB-IOT network, which is characterized in that the information acquisition unit is logical
The situation of change of magnetic flux in parking stall is over-scanned to judge that whether there is or not vehicles on parking stall, when there is vehicle, passes through and reads vehicle
On RFID electronic label obtain vehicle-related information.
3. the vehicle checker based on NB-IOT network described in -2 any one according to claim 1, which is characterized in that the encryption
Algorithm is block cipher.
4. the vehicle checker according to claim 2 based on NB-IOT network, which is characterized in that the RFID electronic label is solid
It is scheduled on vehicle, wherein storing the relevant information of corresponding vehicle, including license plate number.
5. the vehicle checker according to claim 1 based on NB-IOT network, which is characterized in that the vehicle checker coding and institute
The network address for stating intelligent Cloud Server is just built in the read-only memory in vehicle checker factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710101392.4A CN106910367B (en) | 2017-02-24 | 2017-02-24 | A kind of vehicle checker based on NB-IOT network |
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| CN201710101392.4A CN106910367B (en) | 2017-02-24 | 2017-02-24 | A kind of vehicle checker based on NB-IOT network |
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| CN106910367A CN106910367A (en) | 2017-06-30 |
| CN106910367B true CN106910367B (en) | 2019-07-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108320567A (en) * | 2017-12-28 | 2018-07-24 | 浙江中新长清信息科技有限公司 | Intelligent parking method and system |
| RU2695487C1 (en) * | 2018-09-26 | 2019-07-23 | Олег Дмитриевич Гурин | Method and system for interaction of devices of the internet of things (iot) |
| CN114354090A (en) * | 2021-12-24 | 2022-04-15 | 广东科陆智泊信息科技有限公司 | Water seepage detection system and method of vehicle detector |
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Address after: 150006 Heilongjiang Province, Harbin City Economic Development Zone haping Road District Dalian road and Xingkai road junction Patentee after: Heilongjiang Harbin industry Huacui Intelligent Equipment Co.,Ltd. Address before: 150006 Heilongjiang Province, Harbin City Economic Development Zone haping Road District Dalian road and Xingkai road junction Patentee before: HIT ROBOT GROUP (HARBIN) HUACUI INTELLIGENT EQUIPMENT Co.,Ltd. |