CN105843111A - Remote control system and method for automobile - Google Patents
Remote control system and method for automobile Download PDFInfo
- Publication number
- CN105843111A CN105843111A CN201610066040.5A CN201610066040A CN105843111A CN 105843111 A CN105843111 A CN 105843111A CN 201610066040 A CN201610066040 A CN 201610066040A CN 105843111 A CN105843111 A CN 105843111A
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- Prior art keywords
- automobile
- modem
- control unit
- remote control
- central control
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention provides a remote control system and method for an automobile. When an in-vehicle infotainment (IVI) system of an automobile is in an off state, a central control unit in the system is used for generating a network connection AT command and parsing a remote control command received by a modem; the modem is used for generating a network connection request according to the network connection AT command generated by the central control unit, transmitting the network connection request to a network server, receiving a network connection response from the network server, establishing a network connection with the network server, and receiving a remote control command from the network server via the network connection; and an electronic control unit (ECU) is used for executing the remote control command received by the modem and parsed by the central control unit. The invention is capable of remote control of the automobile through the central control unit, the modem and the ECU when the IVI system is turned off, thereby greatly reducing the power consumption, and is low in cost and high in reliability.
Description
Technical field
The present invention relates to automotive field, particularly relate to tele-control system and the method for a kind of automobile.
Background technology
Along with the intelligent development of automobile, remotely control during automobile becomes intellectuality indispensable
A few function.In currently existing scheme, the on-vehicle information of automobile is usually utilized to entertain system
System (IVI) remotely controls.Vehicle-mounted information and entertainment system passes through modem (Modem)
After online connects remote control service device, remote control commands can be received and be transmitted to driving electricity
Brain performs.But, after vehicle-mounted information and entertainment system shutdown, cannot proceed remotely to control
?.In order to ensure the promptness that control instruction responds, when, after engine misses, on-vehicle information is given pleasure to
Music system needs to be constantly in open state, so can be greatly increased power consumption, it is easy to cause
Storage battery feeds.
Furthermore it is ensured that the safety that vehicle remote controls is the most particularly important.But currently existing scheme
As use the mode of note or http to send remote control commands, these modes are all to send out in plain text
Sending mode, there is the biggest problem in safety.
To sum up, for current vehicle remote control technology, automobile storage battery power consumption big and
There is the biggest problem in safety, it is therefore desirable to proposes one and be at vehicle-mounted information and entertainment system
The automobile remote control system of the low-power consumption that still can remotely control under closed mode.
Summary of the invention
Embodiments of the invention provide a kind of tele-control system and the method for automobile, at automobile
Under the state that vehicle entertainment system is closed, realize automobile by the central control unit of low-power consumption
Remotely controlling, low cost, reliability are high.
The present invention provides the tele-control system of a kind of automobile, in the car entertainment system of described automobile
System is closed down, and described system includes: central control unit, modem and row
Car computer, wherein: described central control unit, is used for generating online and connects AT order and resolve
The remote control commands that described modem receives;Described modem, for according to institute
The online connection AT order generation online connection request stating central control unit generation issues network
Server, and receive the online connection response of the described webserver, set up and take with described network
Network between business device connects;And connect the remote of the described webserver of reception by described network
Process control instructs;Described car running computer, for performing the described of described central control unit parsing
The remote control commands that modem receives.
Preferably, described modem connects described central control unit by UART interface.
Preferably, described central control unit includes: signal generating unit, is used for generating online and connects
AT order;Receive unit, for receiving the remote control commands that described modem forwards;
Decryption unit, for deciphering the remote control commands that described reception unit receives;Resolution unit,
Remote control commands after resolving the deciphering of described decryption unit.
Preferably, the form of the remote control commands that described modem receives is HTTPS association
View form.Connect it is further preferred that described network is connected as HTTPS.The most preferred
, described central control unit is specifically for being sent to the essential information of automobile by AT order
Described modem, described modem is specifically for being transmitted to the essential information of automobile
The webserver, the webserver is specifically for setting up one according to the essential information of the automobile received
Individual data base, to deposit the corresponding relation of HTTPS connection and automobile, the basic letter of described automobile
Breath comprises unique identifier and the state of automobile.
Preferably, the form of the remote control commands that described modem receives is TCP+SSL
Protocol format.Connect it is further preferred that described network is connected as TCP+SSL.Further
Preferably, described central control unit is specifically for sending out the essential information of automobile by AT order
Giving described modem, described modem is specifically for turning the essential information of automobile
Issuing the webserver, the webserver is specifically for building according to the essential information of the automobile received
A vertical data base, to deposit the corresponding relation of TCP+SSL connection and automobile, described automobile
Essential information comprises unique identifier and the state of automobile.
Preferably, described AT order is also encrypted by described central control unit.
Preferably, described central control unit also includes: detector unit, is used for detecting automobile shape
State;Alarm unit, is used for when the described vehicle condition that described detector unit detects is for exception,
Generate alarm signal;Described modem is additionally operable to described alarm signal is sent to described net
Network server.
Preferably, described network is connected as wireless network connection and/or mobile network connects.
The present invention also provides for the long-range control method of a kind of corresponding automobile, at the car of described automobile
Carrying entertainment systems to be closed down, described method includes: the central authorities of described automobile control single
Unit generates online and connects AT order and resolve remote control commands;The modem of described automobile
The online generated according to described central control unit connects AT order generation online connection request and sends out
To the webserver, and receive the online connection response of the described webserver, set up with described
Network between the webserver connects;And connect the described network service of reception by described network
The remote control commands of device;The car running computer of described automobile performs described central control unit and resolves
Described modem receive remote control commands.
The tele-control system of a kind of automobile that the embodiment of the present invention provides and method, work as electromotor
After Xi Huo, vehicle-mounted information and entertainment system can be closed, be not connected to remote control network by it,
But it is connected to remote control network by the most individually central control unit and modem
Receive remote control commands, resolved remote control commands by central control unit subsequently and give driving
Computer performs the long-range control to automobile, owing to making without using vehicle-mounted information and entertainment system
Connect network with lower powered central control unit, it is possible to be substantially reduced power consumption, become
This is low, reliability is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the tele-control system of the automobile of the embodiment of the present invention;
Fig. 2 is the flow chart of the long-range control method of the automobile of the embodiment of the present invention.
Detailed description of the invention
Tele-control system and the method for automobile a kind of to the embodiment of the present invention is entered below in conjunction with the accompanying drawings
Row describes in detail.
The inventive concept of the embodiment of the present invention is: in order to the vehicle-mounted information and entertainment system at automobile closes
In the case of machine, also can remotely control, add the central control unit of a low-power consumption
Process remote control commands.
Fig. 1 shows the structured flowchart of the tele-control system of the automobile of the embodiment of the present invention.
With reference to Fig. 1, the embodiment of the present invention is closed in the vehicle entertainment system 15 of automobile
Under, the tele-control system 16 of automobile includes: central control unit 11, modem
(Modem) 12 and car running computer (Electronic Control Unit, ECU) 13, wherein:
Central control unit 11 is used for generating online and connects AT order and resolve modem 12
The remote control commands received.Central control unit 11 can be the low-power consumption of such as single-chip microcomputer
IC chip, due to the advantage that single chip computer architecture is simple, modularity, reliability are high, in
Centre control unit 11 preferably employs single-chip microcomputer, and single-chip microcomputer can use universal, tailored version, total
Line style/non-bus type and industry control type/home appliance type etc..
Modem 12 connects AT order for the online generated according to central control unit 11
Generate online connection request and issue the webserver 14, and receive the online of the webserver 14 even
Connect response, set up and be connected with the network between the webserver 14;And connect by this network
Receive the remote control commands of the webserver 14.Modem 12 can be built-in, outer
Put formula, PCMCIA card insert type, rack etc..AT orders every and starts with letter " AT "
Order, AT heel letter and number represents concrete function, different model or the modulatedemodulate of the trade mark
Adjusting the AT order of device incomplete same, needs are according to actually used correct setting.
Car running computer 13, the modem 12 resolved for performing central control unit 11 connects
The remote control commands received.Car running computer 13 can be tradition car running computer, it is also possible to be intelligence
Car running computer etc..
In said system, first remote control commands is resolved by central control unit 11, sentences
The implication (such as opening air-conditioning etc.) of disconnected control instruction, and verify the legitimacy of sender, if
It is verified, sends remote control commands to car running computer 13, car running computer by CAN
13 perform corresponding order.
Said system is owing to employing the central control unit (MCU) of a single low-power consumption
Automobile is remotely controlled, it is not necessary to use the vehicle entertainment system of automobile, therefore can be significantly
Reduce power consumption.
According to a preferred embodiment of the invention, in Fig. 1, it is total that modem is provided simultaneously with general serial
Line (Universal Serial Bus, USB)/shared drive (Share Memory, SM) and general
Asynchronous receiving-transmitting transmission (Universal Asynchronous Receiver/Transmitter, UART) connects
During mouth, modem will connect vehicle-mounted information and entertainment system (In-Vehicle by USB/SM interface
Infotainment, IVI) 15, connect central control unit 11 by UART interface simultaneously.Car
Carry information entertainment under open state, network access can be carried out, make a phone call, send short messages
Deng.Owing to UART can only carry out the transmission of relatively small data quantity, just it is suitable for central control unit
(now Modem needs have support and sets up TCP/HTTPS to carry out the transmission of remote control commands
Connect, configure the AT order of SSL etc., in order to central control unit only passes through UART interface
Transmitting-receiving AT order, it is possible to receive control instruction by network, it is advantageous in that without inciting somebody to action
ICP/IP protocol stack, SSL, PPP driver etc. are transplanted to central control unit, and development difficulty is bright
Aobvious reduction).
According to a preferred embodiment of the invention, in Fig. 1, central control unit 11 includes: generate
Unit, is used for generating online and connects AT order;Receive unit, for receiving modem
12 remote control commands forwarded;Decryption unit, receives, for deciphering, the long-range control that unit receives
System instruction;Resolution unit, the remote control commands after resolving decryption unit deciphering.
According to a preferred embodiment of the invention, in order to ensure the safety of remote control commands, need
Control instruction is encrypted.Therefore, the remote control commands that modem 12 receives
Form is HTTPS agreement (can also TCP+SSL agreement) form.HTTPS full name is Hyper
Text Transfer Protocol over Secure Socket Layer, with safety as target
HTTP passage, by cipher mode transmission remote control commands such as HTTPS agreements, it is possible to aobvious
Write and strengthen the safety that vehicle remote controls.
Accordingly, vapour corresponding to remote control commands can be found easily for the webserver
Car, the network between modem 12 with the webserver 14 is connected as HTTPS and is connected,
And keep this long connection (can regularly send heartbeat packet to keep this to connect).So,
By AT order, by the essential information of automobile, (unique such as automobile identifies central control unit 11
Code, state etc.) it is sent to modem 12, modem 12 is again by the basic letter of automobile
Breath is by HTTPS protocol forward to the webserver 14, and on the webserver 14, basis receives
The essential information of automobile can set up a data stock and put HTTPS and connect corresponding with automobile
Relation, after the webserver 14 receives the remote control commands of HTTPS protocol format, passes through
Inquiry data base, it is possible to find the automobile that remote control commands is corresponding easily, thus will be remote
Process control instruction is forwarded to the modem 12 of corresponding automobile, and central control unit 11 passes through
AT order reads this remote control commands from modem 12.
According to a preferred embodiment of the invention, central control unit 11 also includes: detector unit,
For detecting vehicle condition;Alarm unit, is different for the vehicle condition detected when detector unit
Chang Shi, generates alarm signal;Modem 12 is additionally operable to above-mentioned alarm signal is sent to net
Network server 14., once there is meaning in the current state of central control unit 11 regular check automobile
Outer situation (such as car door is pried open), notifies immediately to the webserver 14.Vehicle condition
Exception can include that instrument is abnormal, braking is abnormal, oil consumption is abnormal, user vehicle knows vapour
The inspection that can take measures in time according to practical situation after car is abnormal is fixed a breakdown, thus stops peace
Full hidden danger.
According to a preferred embodiment of the invention, in order to ensure remote control commands is quickly rung
Should, it can be wireless network that the network between modem 12 with the webserver 14 is connected
Connect and/or mobile network's (such as 3G/4G network) connects.
The tele-control system of the automobile that the embodiment of the present invention provides, by single central authorities
Control unit processes remote control commands, when after engine misses, it is not necessary to on-vehicle information is given pleasure to
Music system is constantly in open state, it is possible to be substantially reduced power consumption.Additionally, pass through HTTPS
The cipher modes such as agreement send remote control commands, it is possible to the notable peace strengthening vehicle remote control
Quan Xing.
The another aspect of the embodiment of the present invention, it is provided that the operation of a kind of above-mentioned tele-control system
Method.Fig. 2 is the flow chart of the long-range control method of the automobile of the embodiment of the present invention.
With reference to Fig. 2, in step S21, the vehicle entertainment system 15 at automobile is closed
Under, the central control unit 11 of automobile generates online and connects AT order.
Step S22, the online that the modem 12 of automobile generates according to central control unit 11
Connect AT order generation online connection request and issue the webserver 14, and receive network service
The online connection response of device 14, sets up and is connected with the network between the webserver 14.
Step S23, the modem 12 of automobile connects reception network by the network set up
The remote control commands of server 14.
Step S24, the central control unit 11 of automobile resolves the long-range of modem 12 reception
Control instruction.
Step S25, the car running computer 13 of automobile performs the long-range control that central control unit 11 resolves
System instruction.
Automobile is remotely controlled by said method, it is not necessary to use the vehicle entertainment system of automobile,
Therefore power consumption can be substantially reduced.
According to a preferred embodiment of the invention, in said method, modem 12 can pass through
UART interface connects central control unit 11, connects vehicle-mounted letter by USB/SM interface simultaneously
Breath entertainment systems 15.
According to a preferred embodiment of the invention, in said method, in order to ensure remote control commands
Safety, the form of remote control commands that modem 12 receives can be HTTPS
(TCP+SSL) protocol format, accordingly, modem 12 and the webserver 14 it
Between network be connected as HTTPS (TCP+SSL) connect.Further, central control unit
11 pairs of AT orders can also be encrypted.
According to a preferred embodiment of the invention, said method can also carry out following process further:
Central control unit 11 timing detects the current state of automobile, fortuitous event once occurs (such as
Car door is pried open), it is immediately generated alarm signal, alarm signal is sent by modem 12
To the webserver 14.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (20)
1. the tele-control system of an automobile, it is characterised in that in the vehicle-mounted joy of described automobile
Music system is closed down, and described system includes: central control unit, modem
And car running computer, wherein:
Described central control unit, is used for generating online and connects AT order and resolve described modulatedemodulate
Adjust the remote control commands that device receives;
Described modem, connects AT for the online generated according to described central control unit
Order generates online connection request and issues the webserver, and receives the upper of the described webserver
Net connection response, sets up and is connected with the network between the described webserver;And by described net
Network connects the remote control commands receiving the described webserver;
Described car running computer, for performing the described modulation /demodulation that described central control unit resolves
The remote control commands that device receives.
System the most according to claim 1, it is characterised in that: described modem leads to
Cross UART interface and connect described central control unit.
System the most according to claim 2, it is characterised in that: described central control unit
Including:
Signal generating unit, is used for generating online and connects AT order;
Receive unit, for receiving the remote control commands that described modem forwards;
Decryption unit, for deciphering the remote control commands that described reception unit receives;
Resolution unit, the remote control commands after resolving the deciphering of described decryption unit.
System the most according to claim 3, it is characterised in that: described modem connects
The form of the remote control commands received is HTTPS protocol format.
System the most according to claim 4, it is characterised in that: described network is connected as
HTTPS connects.
System the most according to claim 5, it is characterised in that:
Described central control unit is specifically for sending the essential information of automobile by AT order
To described modem, described modem is specifically for forwarding the essential information of automobile
To the webserver, the webserver is set up specifically for the essential information according to the automobile received
One data base, connects and the corresponding relation of automobile depositing HTTPS, described automobile basic
Information comprises unique identifier and the state of automobile.
System the most according to claim 3, it is characterised in that: described modem connects
The form of the remote control commands received is TCP+SSL protocol format.
System the most according to claim 7, it is characterised in that: described network is connected as
TCP+SSL connects.
System the most according to claim 8, it is characterised in that:
Described central control unit is specifically for sending the essential information of automobile by AT order
To described modem, described modem is specifically for forwarding the essential information of automobile
To the webserver, the webserver is set up specifically for the essential information according to the automobile received
One data base, to deposit the corresponding relation of TCP+SSL connection and automobile, the base of described automobile
This information comprises unique identifier and the state of automobile.
10. according to the system described in any one of claim 1~9, it is characterised in that:
Described AT order is also encrypted by described central control unit.
11. according to the system described in any one of claim 1~9, it is characterised in that: in described
Centre control unit also includes:
Detector unit, is used for detecting vehicle condition;
Alarm unit, is used for when the described vehicle condition that described detector unit detects is for exception,
Generate alarm signal;
Described modem is additionally operable to described alarm signal is sent to the described webserver.
12. according to the system described in any one of claim 1~9, it is characterised in that: described net
Network is connected as wireless network and connects and/or mobile network's connection.
The long-range control method of 13. 1 kinds of automobiles, it is characterised in that vehicle-mounted at described automobile
Entertainment systems is closed down, and described method includes:
The central control unit of described automobile generates online and connects AT order and resolve long-range control
Instruction;
The online that the modem of described automobile generates according to described central control unit connects
AT order generates online connection request and issues the webserver, and receives the described webserver
Online connection response, sets up and is connected with the network between the described webserver;And by described
Network connects the remote control commands receiving the described webserver;
The car running computer of described automobile performs the described modulation /demodulation that described central control unit resolves
The remote control commands that device receives.
14. methods according to claim 13, it is characterised in that: described modem
Described central control unit is connected by UART interface.
15. methods according to claim 14, it is characterised in that: described modem
The form of the remote control commands received is HTTPS protocol format.
16. methods according to claim 15, it is characterised in that: described network is connected as
HTTPS connects.
17. methods according to claim 14, it is characterised in that: described modem
The form of the remote control commands received is TCP+SSL protocol format.
18. methods according to claim 17, it is characterised in that: described network is connected as
TCP+SSL connects.
19. according to the method described in any one of claim 13~18, it is characterised in that:
Described AT order is also encrypted by described central control unit.
20. according to the method described in any one of claim 13~18, it is characterised in that described
Method also includes:
Described central control unit detection vehicle condition, when described vehicle condition is abnormal, raw
Becoming alarm signal, described alarm signal is sent to the described webserver by modem.
Priority Applications (1)
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CN201610066040.5A CN105843111A (en) | 2016-01-29 | 2016-01-29 | Remote control system and method for automobile |
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CN201610066040.5A CN105843111A (en) | 2016-01-29 | 2016-01-29 | Remote control system and method for automobile |
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CN104363266A (en) * | 2014-10-23 | 2015-02-18 | 北京远特科技有限公司 | Remote vehicle control method, TSP (telematics service provider) backstage system and vehicular terminal |
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CN1877106A (en) * | 2005-06-10 | 2006-12-13 | 浙江飞亚电子有限公司 | Public telephone network based remote diagnosing system and method for engine |
CN201035379Y (en) * | 2007-03-23 | 2008-03-12 | 鲁东大学 | Vehicle remote data exchange and intelligent control device |
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Application publication date: 20160810 |