Invention content
The object of the present invention is to provide a kind of security performance height, automobile communication unlock easily for automobile timesharing leaseCar-mounted terminal.
To achieve the above object, the present invention adopts the following technical scheme that, for the car-mounted terminal of automobile timesharing lease, includingCell-phone customer terminal, car-mounted terminal, communication base station and automobile, car-mounted terminal are mounted on automotive interior, car-mounted terminal and communication base stationCommunication connection, the communication of cell-phone customer terminal and communication base station connect, and car-mounted terminal includes central processing unit and electrically connected with itCommunication module, remote start module and data acquisition module, data acquisition module are electrically connected with automobile, remote start module and vapourVehicle electrically connects, communication module and communication base station wireless telecommunications, and remote start module includes bluetooth module, bluetooth module and mobile phone visitorThe Bluetooth matching communication of family end.
The present invention is used for the car-mounted terminal of automobile timesharing lease, and cell-phone customer terminal is obtained by communication base station using mandate letterBreath, cell-phone customer terminal and car-mounted terminal bluetooth communication are once authenticated, and car-mounted terminal is according to the authorization message of cell-phone customer terminalWith communication base station wireless telecommunications and confirming authorization message, cell-phone customer terminal receives the license confirmation information of communication base station, and and vehicleMounted terminal carries out secondary authentication, it is secondary authenticate successfully after, car-mounted terminal solution locks door, and starts to lease.Lease is carried out to terminateWhen returning the car, the central processing unit of car-mounted terminal confirms that vehicle is in the shape that can return the car by data collecting module collected vehicle-stateAfter state, lease is completed, locks automobile.
In some embodiments, data acquisition module includes OBD modules and multichannel CAN bus, and OBD modules pass through multichannelCAN bus is electrically connected with automobile all parts.OBD modules are sent out vehicle-state by multichannel CAN bus collection vehicle stateIt is sent to central processing unit.
In some embodiments, data collecting module collected vehicle condition data, status data include braking state, pointFlameout state, range state, vehicle door status, car light state and vehicle window state.By detecting braking state, point flameout state, shelvesPosition state, vehicle door status, car light state and vehicle window state are to determine whether meet also car state.
In some embodiments, vehicle condition data further include mileage number, oil mass state, oil consumption state.Pass through detectionMileage number, oil mass state, oil consumption state judge user's car state.
In some embodiments, communication module GPRS, 2g, 3g, 4g or 5g communication modules, communication module and communication baseIt stands wireless telecommunications.Using all kinds of communications, communication context is wide, and safety coefficient is high.
Beneficial effects of the present invention are：The present invention is used for the car-mounted terminal of automobile timesharing lease, and cell-phone customer terminal passes through logicalBase station is interrogated to obtain using authorization message, cell-phone customer terminal and car-mounted terminal bluetooth communication are once authenticated, car-mounted terminal according toThe authorization message of cell-phone customer terminal and communication base station wireless telecommunications simultaneously confirm authorization message, and cell-phone customer terminal receives communication base stationLicense confirmation information, and secondary authentication is carried out with car-mounted terminal, it is secondary authenticate successfully after, car-mounted terminal solution locks door, and starts to rentIt rents.It carries out lease to terminate when returning the car, the central processing unit of car-mounted terminal is by data collecting module collected vehicle-state, reallyVehicle is recognized after it can go back car state, is completed lease, is locked automobile.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Figure 1, for the car-mounted terminal of automobile timesharing lease, including cell-phone customer terminal 1, car-mounted terminal 2, communication baseIt stands 3 and automobile 4, car-mounted terminal 2 is mounted on inside automobile 4, and car-mounted terminal 2 is connected with the communication of communication base station 3, cell-phone customer terminal 1It communicates and connects with communication base station 3, car-mounted terminal 2 includes central processing unit 5 and the communication module 6 electrically connected with it, remotely opensDynamic model block 7 and data acquisition module 8, data acquisition module 8 are electrically connected with automobile 4, and remote start module 7 is electrically connected with automobile 4,Communication module 5 and 3 wireless telecommunications of communication base station, remote start module 7 include bluetooth module 9, bluetooth module 9 and cell-phone customer terminal1 Bluetooth matching communicates.
The present invention is used for the car-mounted terminal of automobile timesharing lease, and cell-phone customer terminal 1 is obtained by communication base station 3 using mandateInformation, cell-phone customer terminal 1 and 2 bluetooth communication of car-mounted terminal, are once authenticated, car-mounted terminal 2 is awarded according to cell-phone customer terminal 1Power information and 3 wireless telecommunications of communication base station simultaneously confirm authorization message, and cell-phone customer terminal 1 receives the license confirmation letter of communication base station 3Breath, and secondary authentication is carried out with car-mounted terminal 2, it is secondary authenticate successfully after, 2 solution of car-mounted terminal locks door, and starts to lease.Need intoWhen row lease terminates to return the car, the central processing unit 5 of car-mounted terminal 2 confirms vehicle by 8 collection vehicle state of data acquisition moduleAfter it can go back car state, lease is completed, locks automobile.
The unlock that bluetooth module 9 passes through the bluetooth communication realization car door in cell-phone customer terminal 1.
Data acquisition module 8 includes OBD modules 81 and multichannel CAN bus, and OBD modules 81 pass through multichannel CAN bus and vapour4 all parts of vehicle electrically connect.
Data acquisition module 8 acquires vehicle condition data, and status data includes braking state, point flameout state, gear shapeState, vehicle door status, car light state and vehicle window state.
Vehicle condition data further include mileage number, oil mass state, oil consumption state.
Data acquisition module 8 is aobvious in real time by mileage number, oil mass state and oil consumption state by acquiring vehicle condition dataShow user's vehicle situation, when user return the car operation, data acquisition module 8, which is worked as, detects that the in place, automobile that brakes is put outFire, gear be suspended to P grade, closing of the door, car light close, vehicle window close when, meet also car state, lock automobile, complete lease.
Communication module 6 is GPRS, 2g, 3g, 4g or 5g communication module, communication module 6 and 3 wireless telecommunications of communication base station.
Timesharing Rental Procedure is as follows：
Order vehicle：Server with cell-phone customer terminal wireless telecommunications, send preauthorization information to cell-phone customer terminal；
It picks up the car：Car-mounted terminal is preset with authentication code, car-mounted terminal and cell-phone customer terminal wireless telecommunications, obtains cell-phone customer terminalPreauthorization information, and preauthorization information is once authenticated with authentication code；Server sends an authentication result informationTo cell-phone customer terminal, car-mounted terminal and cell-phone customer terminal carry out secondary authentication, it is secondary authenticate successfully after, solution locks door；
Use vehicle：Car-mounted terminal is in monitoring automobile parameters information, and be sent to server in real time；
It returns the car：Car-mounted terminal receives instruction of returning the car, and according to automobile parameters information, judges whether to meet the condition of returning the car,When vehicle condition meets the condition of returning the car, locking automobile is completed to return the car.
In pick-up link, car-mounted terminal passes through Bluetooth communication with cell-phone customer terminal.
With in vehicle link, automobile parameters information include braking state, point flameout state, range state, vehicle door status,Car light state, vehicle window state, mileage number, oil mass state and oil consumption state.
In link of returning the car, condition of returning the car for brake is in place, automobile flameout, gear be suspended to P grade, closing of the door, car light closing,Vehicle window is closed.
Bluetooth communication flow is：1. user is prompted to open bluetooth；2. search for equipment according to the bluetooth parameters that database preserves；3. automatic matching is carried out according to the bluetooth equipment found, if pairing failure, continually attempts to 3 times；4. it is built automatically after successful matchingVertical connection；5. bluetooth equipment subscribes to message to car-mounted terminal；Automatic primary authentication is successfully carried out after 1 second 6. subscribing to；7. primary mirrorSecondary authentication is carried out after weighing successfully.
Bluetooth communication is complete encrypted, is all encrypted including packet header and packet tail, the data transmission subpackage transmission of bluetooth countsAccording to there is no precedence between packet, in order not to lead to decryption error because of a group packet, each communication instruction collection control 20 bytes withIt is interior.
Authentication code uses rivest, shamir, adelman, and the private key of each car is stored in backstage.After returning the car successfully every time, meetingThe private key used before cell-phone customer terminal is removed, while backstage can regenerate new private key as authentication code, and update immediatelyTo terminal.When next user orders vehicle success, then the new private key of vehicle will be ordered and be sent to cell-phone customer terminal, for carrying out indigo plantTooth authenticates.
User finds the vehicle that can be rented in cell-phone customer terminal, is subscribed, and after subscribing successfully, user is when specifiedInterior completion pick-up action, such as time-out will start metered.After subscribing successfully, server sends authentication code passenger in one's handsFamily end.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, notUnder the premise of being detached from the invention design, various modifications and improvements can be made, these belong to the protection model of the present inventionIt encloses.